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Update to new gcp-auth plugin

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This commit is contained in:
Jeff Mitchell 2017-09-15 15:35:34 -04:00
parent 3c143bd0d3
commit da1eb4cf16
44 changed files with 102552 additions and 325 deletions
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51
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/backend.go generated vendored
View file

@ -14,6 +14,7 @@ import (
"github.com/hashicorp/vault/version"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/compute/v1"
"google.golang.org/api/iam/v1"
)
@ -26,8 +27,9 @@ type GcpAuthBackend struct {
// Locks for guarding service clients
clientMutex sync.RWMutex
// GCP service clients
// -- GCP service clients --
iamClient *iam.Service
gceClient *compute.Service
}
// Factory returns a new backend as logical.Backend.
@ -43,6 +45,7 @@ func Backend() *GcpAuthBackend {
b := &GcpAuthBackend{
oauthScopes: []string{
iam.CloudPlatformScope,
compute.ComputeReadonlyScope,
},
}
@ -80,6 +83,7 @@ func (b *GcpAuthBackend) Close() {
defer b.clientMutex.Unlock()
b.iamClient = nil
b.gceClient = nil
}
func (b *GcpAuthBackend) IAM(s logical.Storage) (*iam.Service, error) {
@ -104,6 +108,28 @@ func (b *GcpAuthBackend) IAM(s logical.Storage) (*iam.Service, error) {
return b.iamClient, nil
}
func (b *GcpAuthBackend) GCE(s logical.Storage) (*compute.Service, error) {
b.clientMutex.RLock()
if b.gceClient != nil {
defer b.clientMutex.RUnlock()
return b.gceClient, nil
}
b.clientMutex.RUnlock()
b.clientMutex.Lock()
defer b.clientMutex.Unlock()
// Check if client was created during lock switch.
if b.gceClient == nil {
err := b.initClients(s)
if err != nil {
return nil, err
}
}
return b.gceClient, nil
}
// Initialize attempts to create GCP clients from stored config.
// It does not attempt to claim the client lock.
func (b *GcpAuthBackend) initClients(s logical.Storage) (err error) {
@ -137,16 +163,27 @@ func (b *GcpAuthBackend) initClients(s logical.Storage) (err error) {
}
b.iamClient.UserAgent = userAgentStr
b.gceClient, err = compute.New(httpClient)
if err != nil {
b.Close()
return err
}
b.gceClient.UserAgent = userAgentStr
return nil
}
const backendHelp = `
The GCP credential provider allows authentication for Google Cloud Platform entities.
Currently supports authentication for:
The GCP backend plugin allows authentication for Google Cloud Platform entities.
Currently, it supports authentication for:
IAM service accounts:
* IAM Service Accounts:
IAM service accounts provide a signed JSON Web Token (JWT), signed by
calling GCP APIs directly or via the Vault CL helper. If successful,
Vault will also return a client nonce that is required as the 'jti'
field for all subsequent logins by this instance.
calling GCP APIs directly or via the Vault CL helper.
* GCE VM Instances:
GCE provide a signed instance metadata JSON Web Token (JWT), obtained from the
GCE instance metadata server (http://metadata.google.internal/computeMetadata/v1/instance).
Using the /service-accounts/<service-account-name>/identity endpoint, the instance
can obtain this JWT and pass it to Vault on login.
`

27
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/path_config.go generated vendored
View file

@ -21,6 +21,12 @@ func pathConfig(b *GcpAuthBackend) *framework.Path {
Google credentials JSON that Vault will use to verify users against GCP APIs.
If not specified, will use application default credentials`,
},
"google_certs_endpoint": {
Type: framework.TypeString,
Description: `
Base endpoint url that Vault will use to get Google certificates.
If not specified, will use the OAuth2 library default. Useful for testing.`,
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.ReadOperation: b.pathConfigRead,
@ -68,11 +74,12 @@ func (b *GcpAuthBackend) pathConfigRead(req *logical.Request, data *framework.Fi
resp := &logical.Response{
Data: map[string]interface{}{
"client_email": config.Credentials.ClientEmail,
"client_id": config.Credentials.ClientId,
"private_key_id": config.Credentials.PrivateKeyId,
"private_key": config.Credentials.PrivateKey,
"project_id": config.Credentials.ProjectId,
"client_email": config.Credentials.ClientEmail,
"client_id": config.Credentials.ClientId,
"private_key_id": config.Credentials.PrivateKeyId,
"private_key": config.Credentials.PrivateKey,
"project_id": config.Credentials.ProjectId,
"google_certs_endpoint": config.GoogleCertsEndpoint,
},
}
@ -91,10 +98,9 @@ iam AUTH:
`
// gcpConfig contains all config required for the GCP backend.
// Currently it only holds credentials, but we are leaving it as a seperate
// struct in case we add more fields in the future.
type gcpConfig struct {
Credentials *util.GcpCredentials `json:"credentials" structs:"credentials" mapstructure:"credentials"`
Credentials *util.GcpCredentials `json:"credentials" structs:"credentials" mapstructure:"credentials"`
GoogleCertsEndpoint string `json:"google_certs_endpoint" structs:"google_certs_endpoint" mapstructure:"google_certs_endpoint"`
}
// Update sets gcpConfig values parsed from the FieldData.
@ -111,6 +117,11 @@ func (config *gcpConfig) Update(data *framework.FieldData) error {
config.Credentials = creds
}
certsEndpoint := data.Get("google_certs_endpoint").(string)
if len(certsEndpoint) > 0 {
config.GoogleCertsEndpoint = certsEndpoint
}
return nil
}

387
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/path_login.go generated vendored
View file

@ -3,25 +3,22 @@ package gcpauth
import (
"errors"
"fmt"
"time"
"github.com/SermoDigital/jose/crypto"
"github.com/SermoDigital/jose/jws"
"github.com/SermoDigital/jose/jwt"
"github.com/hashicorp/vault-plugin-auth-gcp/plugin/util"
"github.com/hashicorp/vault/helper/policyutil"
"github.com/hashicorp/vault/helper/strutil"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
"google.golang.org/api/compute/v1"
"google.golang.org/api/iam/v1"
"gopkg.in/square/go-jose.v2/jwt"
"strconv"
"strings"
"time"
)
const (
expectedJwtAudTemplate string = "vault/%s"
// Default duration that JWT tokens must expire within to be accepted
defaultMaxJwtExpMin int = 15
clientErrorTemplate string = "backend not configured properly, could not create %s client: %v"
)
@ -34,8 +31,10 @@ func pathLogin(b *GcpAuthBackend) *framework.Path {
Description: `Name of the role against which the login is being attempted. Required.`,
},
"jwt": {
Type: framework.TypeString,
Description: `A signed JWT for authenticating a service account.`,
Type: framework.TypeString,
Description: `
A signed JWT. This is either a self-signed service account JWT ('iam' roles only) or a
GCE identity metadata token ('iam', 'gce' roles).`,
},
},
@ -50,7 +49,7 @@ func pathLogin(b *GcpAuthBackend) *framework.Path {
}
func (b *GcpAuthBackend) pathLogin(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
loginInfo, err := b.parseInfoFromJwt(req, data)
loginInfo, err := b.parseAndValidateJwt(req, data)
if err != nil {
return logical.ErrorResponse(err.Error()), nil
}
@ -59,6 +58,8 @@ func (b *GcpAuthBackend) pathLogin(req *logical.Request, data *framework.FieldDa
switch roleType {
case iamRoleType:
return b.pathIamLogin(req, loginInfo)
case gceRoleType:
return b.pathGceLogin(req, loginInfo)
default:
return logical.ErrorResponse(fmt.Sprintf("login against role type '%s' is unsupported", roleType)), nil
}
@ -84,6 +85,10 @@ func (b *GcpAuthBackend) pathLoginRenew(req *logical.Request, data *framework.Fi
if err := b.pathIamRenew(req, role); err != nil {
return logical.ErrorResponse(err.Error()), nil
}
case gceRoleType:
if err := b.pathGceRenew(req, role); err != nil {
return logical.ErrorResponse(err.Error()), nil
}
default:
return nil, fmt.Errorf("unexpected role type '%s' for login renewal", role.RoleType)
}
@ -109,14 +114,14 @@ type gcpLoginInfo struct {
// ID or email of an IAM service account or that inferred for a GCE VM.
ServiceAccountId string
// ID of the public key to verify the signed JWT.
KeyId string
// Base JWT Claims (registered claims such as 'exp', 'iss', etc)
JWTClaims *jwt.Claims
// Signed JWT
JWT jwt.JWT
// Metadata from a GCE instance identity token.
GceMetadata *util.GCEIdentityMetadata
}
func (b *GcpAuthBackend) parseInfoFromJwt(req *logical.Request, data *framework.FieldData) (*gcpLoginInfo, error) {
func (b *GcpAuthBackend) parseAndValidateJwt(req *logical.Request, data *framework.FieldData) (*gcpLoginInfo, error) {
loginInfo := &gcpLoginInfo{}
var err error
@ -133,73 +138,122 @@ func (b *GcpAuthBackend) parseInfoFromJwt(req *logical.Request, data *framework.
return nil, fmt.Errorf("role '%s' not found", loginInfo.RoleName)
}
// Process JWT string.
signedJwt, ok := data.GetOk("jwt")
if !ok {
return nil, errors.New("jwt argument is required")
}
signedJwtBytes := []byte(signedJwt.(string))
// Parse into JWS to get header values.
jwsVal, err := jws.Parse(signedJwtBytes)
if err != nil {
return nil, err
}
headerVal := jwsVal.Protected()
if headerVal.Has("kid") {
loginInfo.KeyId = jwsVal.Protected().Get("kid").(string)
} else {
return nil, errors.New("provided JWT must have 'kid' header value")
}
// Parse claims
loginInfo.JWT, err = jws.ParseJWT(signedJwtBytes)
// Parse 'kid' key id from headers.
jwtVal, err := jwt.ParseSigned(signedJwt.(string))
if err != nil {
return nil, err
}
sub, ok := loginInfo.JWT.Claims().Subject()
if !ok {
return nil, errors.New("expected JWT to have 'sub' claim with service account id or email")
key, err := b.getSigningKey(jwtVal, signedJwt.(string), loginInfo.Role, req.Storage)
if err != nil {
return nil, err
}
// Parse claims and verify signature.
baseClaims := &jwt.Claims{}
customClaims := &util.CustomJWTClaims{}
if err = jwtVal.Claims(key, baseClaims, customClaims); err != nil {
return nil, err
}
if err = validateBaseJWTClaims(baseClaims, loginInfo.RoleName); err != nil {
return nil, err
}
loginInfo.JWTClaims = baseClaims
if len(baseClaims.Subject) == 0 {
return nil, errors.New("expected JWT to have non-empty 'sub' claim")
}
loginInfo.ServiceAccountId = baseClaims.Subject
if customClaims.Google != nil && customClaims.Google.Compute != nil && len(customClaims.Google.Compute.InstanceId) > 0 {
loginInfo.GceMetadata = customClaims.Google.Compute
}
if loginInfo.Role.RoleType == gceRoleType && loginInfo.GceMetadata == nil {
return nil, errors.New("expected JWT to have claims with GCE metadata")
}
loginInfo.ServiceAccountId = sub
return loginInfo, nil
}
func (info *gcpLoginInfo) validateJWT(keyPEM string, loginInfo *gcpLoginInfo) error {
pubKey, err := util.PublicKey(keyPEM)
if err != nil {
return err
func (b *GcpAuthBackend) getSigningKey(token *jwt.JSONWebToken, rawToken string, role *gcpRole, s logical.Storage) (interface{}, error) {
if len(token.Headers) != 1 {
return nil, errors.New("expected token to have exactly one header")
}
validator := &jwt.Validator{
Expected: jwt.Claims{
"aud": fmt.Sprintf(expectedJwtAudTemplate, loginInfo.RoleName),
},
Fn: func(c jwt.Claims) error {
exp, ok := c.Expiration()
if !ok {
return errors.New("JWT claim 'exp' is required")
}
if exp.After(time.Now().Add(loginInfo.Role.MaxJwtExp)) {
return fmt.Errorf("JWT expires in %v minutes but must expire within %v for this role. Please generate a new token with a valid expiration.",
int(exp.Sub(time.Now())/time.Minute), loginInfo.Role.MaxJwtExp)
}
keyId := token.Headers[0].KeyID
return nil
},
switch role.RoleType {
case iamRoleType:
iamClient, err := b.IAM(s)
if err != nil {
return nil, err
}
serviceAccountId, err := util.ParseServiceAccountFromIAMJWT(rawToken)
if err != nil {
return nil, err
}
accountKey, err := util.ServiceAccountKey(iamClient, keyId, serviceAccountId, role.ProjectId)
if err != nil {
return nil, err
}
return util.PublicKey(accountKey.PublicKeyData)
case gceRoleType:
var certsEndpoint string
conf, err := b.config(s)
if err != nil {
return nil, fmt.Errorf("could not read config for backend: %v", err)
}
if conf != nil {
certsEndpoint = conf.GoogleCertsEndpoint
}
key, err := util.OAuth2RSAPublicKey(keyId, certsEndpoint)
if err != nil {
return nil, err
}
return key, nil
default:
return nil, fmt.Errorf("unexpected role type %s", role.RoleType)
}
}
func validateBaseJWTClaims(c *jwt.Claims, roleName string) error {
exp := c.Expiry.Time()
if exp.IsZero() || exp.Before(time.Now()) {
return errors.New("JWT is expired or does not have proper 'exp' claim")
} else if exp.After(time.Now().Add(time.Minute * time.Duration(maxJwtExpMaxMinutes))) {
return fmt.Errorf("JWT must expire in %d minutes", maxJwtExpMaxMinutes)
}
if err := info.JWT.Validate(pubKey, crypto.SigningMethodRS256, validator); err != nil {
return fmt.Errorf("invalid JWT: %v", err)
sub := c.Subject
if len(sub) < 0 {
return errors.New("expected JWT to have 'sub' claim with service account id or email")
}
expectedAudSuffix := fmt.Sprintf(expectedJwtAudTemplate, roleName)
for _, aud := range c.Audience {
if !strings.HasSuffix(aud, expectedAudSuffix) {
return fmt.Errorf("at least one of the JWT claim 'aud' must end in '%s'", expectedAudSuffix)
}
}
return nil
}
// ---- IAM login domain ----
// pathIamLogin attempts a login operation using the parsed login info.
func (b *GcpAuthBackend) pathIamLogin(req *logical.Request, loginInfo *gcpLoginInfo) (*logical.Response, error) {
iamClient, err := b.IAM(req.Storage)
if err != nil {
@ -207,17 +261,17 @@ func (b *GcpAuthBackend) pathIamLogin(req *logical.Request, loginInfo *gcpLoginI
}
role := loginInfo.Role
// Verify and get service account from signed JWT.
key, err := util.ServiceAccountKey(iamClient, loginInfo.KeyId, loginInfo.ServiceAccountId, role.ProjectId)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("service account %s has no key with id %s", loginInfo.ServiceAccountId, loginInfo.KeyId)), nil
if !role.AllowGCEInference && loginInfo.GceMetadata != nil {
return logical.ErrorResponse(fmt.Sprintf(
"IAM role '%s' does not allow gce inference but GCE instance metadata token given", loginInfo.RoleName)), nil
}
if err := loginInfo.validateJWT(key.PublicKeyData, loginInfo); err != nil {
return logical.ErrorResponse(err.Error()), nil
// TODO(emilymye): move to general JWT validation once custom expiry is supported for other JWT types.
if loginInfo.JWTClaims.Expiry.Time().After(time.Now().Add(role.MaxJwtExp)) {
return logical.ErrorResponse(fmt.Sprintf("role requires that JWTs must expire within %d seconds", int(role.MaxJwtExp/time.Second))), nil
}
// Get service account and make sure it still exists.
serviceAccount, err := util.ServiceAccount(iamClient, loginInfo.ServiceAccountId, role.ProjectId)
if err != nil {
return nil, err
@ -237,7 +291,7 @@ func (b *GcpAuthBackend) pathIamLogin(req *logical.Request, loginInfo *gcpLoginI
}
// Validate service account can login against role.
if err := b.validateAgainstIAMRole(serviceAccount, role); err != nil {
if err := b.authorizeIAMServiceAccount(serviceAccount, role); err != nil {
return logical.ErrorResponse(err.Error()), nil
}
@ -264,6 +318,8 @@ func (b *GcpAuthBackend) pathIamLogin(req *logical.Request, loginInfo *gcpLoginI
return resp, nil
}
// pathIamRenew returns an error if the service account referenced in the auth token metadata cannot renew the
// auth token for the given role.
func (b *GcpAuthBackend) pathIamRenew(req *logical.Request, role *gcpRole) error {
iamClient, err := b.IAM(req.Storage)
if err != nil {
@ -280,7 +336,7 @@ func (b *GcpAuthBackend) pathIamRenew(req *logical.Request, role *gcpRole) error
return fmt.Errorf("cannot find service account %s", serviceAccountId)
}
if err := b.validateAgainstIAMRole(serviceAccount, role); err != nil {
if err := b.authorizeIAMServiceAccount(serviceAccount, role); err != nil {
return errors.New("service account is no longer authorized for role")
}
@ -288,20 +344,20 @@ func (b *GcpAuthBackend) pathIamRenew(req *logical.Request, role *gcpRole) error
}
// validateAgainstIAMRole returns an error if the given IAM service account is not authorized for the role.
func (b *GcpAuthBackend) validateAgainstIAMRole(serviceAccount *iam.ServiceAccount, role *gcpRole) error {
func (b *GcpAuthBackend) authorizeIAMServiceAccount(serviceAccount *iam.ServiceAccount, role *gcpRole) error {
// This is just in case - project should already be used to retrieve service account.
if role.ProjectId != serviceAccount.ProjectId {
return fmt.Errorf("service account %s does not belong to project %s", serviceAccount.Email, role.ProjectId)
}
// Check if role has the wildcard as the only service account.
if len(role.ServiceAccounts) == 1 && role.ServiceAccounts[0] == serviceAccountWildcard {
if len(role.BoundServiceAccounts) == 1 && role.BoundServiceAccounts[0] == serviceAccountsWildcard {
return nil
}
// Check for service account id/email.
if strutil.StrListContains(role.ServiceAccounts, serviceAccount.Email) ||
strutil.StrListContains(role.ServiceAccounts, serviceAccount.UniqueId) {
if strutil.StrListContains(role.BoundServiceAccounts, serviceAccount.Email) ||
strutil.StrListContains(role.BoundServiceAccounts, serviceAccount.UniqueId) {
return nil
}
@ -309,6 +365,195 @@ func (b *GcpAuthBackend) validateAgainstIAMRole(serviceAccount *iam.ServiceAccou
serviceAccount.Email, serviceAccount.UniqueId)
}
// ---- GCE login domain ----
// pathGceLogin attempts a login operation using the parsed login info.
func (b *GcpAuthBackend) pathGceLogin(req *logical.Request, loginInfo *gcpLoginInfo) (*logical.Response, error) {
role := loginInfo.Role
metadata := loginInfo.GceMetadata
fmt.Printf("here\n")
fmt.Printf("metadata.CreatedAt \n")
if metadata == nil {
return logical.ErrorResponse("could not get GCE metadata from given JWT"), nil
}
if role.ProjectId != metadata.ProjectId {
return logical.ErrorResponse(fmt.Sprintf(
"GCE instance must belong to project %s; metadata given has project %s",
role.ProjectId, metadata.ProjectId)), nil
}
// Verify instance exists.
gceClient, err := b.GCE(req.Storage)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf(clientErrorTemplate, "GCE", err)), nil
}
instance, err := metadata.GetVerifiedInstance(gceClient)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf(
"error when attempting to find instance (project %s, zone: %s, instance: %s) :%v",
metadata.ProjectId, metadata.Zone, metadata.InstanceName, err)), nil
}
if err := b.authorizeGCEInstance(instance, req.Storage, role, metadata.Zone, loginInfo.ServiceAccountId); err != nil {
return logical.ErrorResponse(err.Error()), nil
}
resp := &logical.Response{
Auth: &logical.Auth{
InternalData: map[string]interface{}{},
Period: role.Period,
Persona: &logical.Persona{
Name: fmt.Sprintf("gce-%s", strconv.FormatUint(instance.Id, 10)),
},
Policies: role.Policies,
Metadata: map[string]string{
"project_id": metadata.ProjectId,
"project_number": strconv.FormatInt(metadata.ProjectNumber, 10),
"zone": metadata.Zone,
"instance_id": metadata.InstanceId,
"instance_name": metadata.InstanceName,
"instance_creation_timestamp": strconv.FormatInt(metadata.CreatedAt, 10),
"service_account_id": loginInfo.ServiceAccountId,
"role": loginInfo.RoleName,
},
DisplayName: instance.Name,
LeaseOptions: logical.LeaseOptions{
Renewable: true,
TTL: role.TTL,
},
},
}
return resp, nil
}
// pathGceRenew returns an error if the instance referenced in the auth token metadata cannot renew the
// auth token for the given role.
func (b *GcpAuthBackend) pathGceRenew(req *logical.Request, role *gcpRole) error {
gceClient, err := b.GCE(req.Storage)
if err != nil {
return fmt.Errorf(clientErrorTemplate, "GCE", err)
}
meta, err := util.GetInstanceMetadataFromAuth(req.Auth.Metadata)
if err != nil {
return fmt.Errorf("invalid auth metadata: %v", err)
}
instance, err := meta.GetVerifiedInstance(gceClient)
if err != nil {
return err
}
serviceAccountId, ok := req.Auth.Metadata["service_account_id"]
if !ok {
return errors.New("invalid auth metadata: service_account_id not found")
}
if err := b.authorizeGCEInstance(instance, req.Storage, role, meta.Zone, serviceAccountId); err != nil {
return err
}
return nil
}
// validateGCEInstance returns an error if the given GCE instance is not authorized for the role.
func (b *GcpAuthBackend) authorizeGCEInstance(instance *compute.Instance, s logical.Storage, role *gcpRole, zone, serviceAccountId string) error {
gceClient, err := b.GCE(s)
if err != nil {
return err
}
// Verify instance has role labels if labels were set on role.
for k, expectedV := range role.BoundLabels {
actualV, ok := instance.Labels[k]
if !ok || actualV != expectedV {
return fmt.Errorf("role label '%s:%s' not found on GCE instance", k, expectedV)
}
}
// Verify that instance is in zone or region if given.
if len(role.BoundZone) > 0 {
var zone string
idx := strings.LastIndex(instance.Zone, "zones/")
if idx > 0 {
// Parse zone name from full zone self-link URL.
idx += len("zones/")
zone = instance.Zone[idx:len(instance.Zone)]
} else {
// Expect full zone name to be set as instance zone.
zone = instance.Zone
}
if zone != role.BoundZone {
return fmt.Errorf("instance is not in role zone '%s'", role.BoundZone)
}
} else if len(role.BoundRegion) > 0 {
zone, err := gceClient.Zones.Get(role.ProjectId, zone).Do()
if err != nil {
return fmt.Errorf("could not verify instance zone '%s' is available for project '%s': %v", role.ProjectId, zone, err)
}
if zone.Region != role.BoundRegion {
return fmt.Errorf("zone '%s' is not in region '%s'", zone.Name, zone.Region)
}
}
// If instance group is given, verify group exists and that instance is in group.
if len(role.BoundInstanceGroup) > 0 {
var group *compute.InstanceGroup
var err error
// Check if group should be zonal or regional.
if len(role.BoundZone) > 0 {
group, err = gceClient.InstanceGroups.Get(role.ProjectId, role.BoundZone, role.BoundInstanceGroup).Do()
if err != nil {
return fmt.Errorf("could not find role instance group %s (project %s, zone %s)", role.BoundInstanceGroup, role.ProjectId, role.BoundZone)
}
} else if len(role.BoundRegion) > 0 {
group, err = gceClient.RegionInstanceGroups.Get(role.ProjectId, role.BoundRegion, role.BoundInstanceGroup).Do()
if err != nil {
return fmt.Errorf("could not find role instance group %s (project %s, region %s)", role.BoundInstanceGroup, role.ProjectId, role.BoundRegion)
}
} else {
return errors.New("expected zone or region to be set for GCE role '%s' with instance group")
}
// Verify instance group contains authenticating instance.
instanceIdFilter := fmt.Sprintf("instance eq %s", instance.SelfLink)
listInstanceReq := &compute.InstanceGroupsListInstancesRequest{}
listResp, err := gceClient.InstanceGroups.ListInstances(role.ProjectId, role.BoundZone, group.Name, listInstanceReq).Filter(instanceIdFilter).Do()
if err != nil {
return fmt.Errorf("could not confirm instance %s is part of instance group %s: %s", instance.Name, role.BoundInstanceGroup, err)
}
if len(listResp.Items) == 0 {
return fmt.Errorf("instance %s is not part of instance group %s", instance.Name, role.BoundInstanceGroup)
}
}
// Verify instance is running under one of the allowed service accounts.
if len(role.BoundServiceAccounts) > 0 {
iamClient, err := b.IAM(s)
if err != nil {
return err
}
serviceAccount, err := util.ServiceAccount(iamClient, serviceAccountId, role.ProjectId)
if err != nil {
return fmt.Errorf("could not find service acocunt with id '%s': ")
}
if !(strutil.StrListContains(role.BoundServiceAccounts, serviceAccount.Email) ||
strutil.StrListContains(role.BoundServiceAccounts, serviceAccount.UniqueId)) {
return fmt.Errorf("GCE instance's service account email (%s) or id (%s) not found in role service accounts: %v",
serviceAccount.Email, serviceAccount.UniqueId, role.BoundServiceAccounts)
}
}
return nil
}
const pathLoginHelpSyn = `Authenticates Google Cloud Platform entities with Vault.`
const pathLoginHelpDesc = `
Authenticate Google Cloud Platform (GCP) entities.

677
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/path_role.go generated vendored
View file

@ -3,80 +3,146 @@ package gcpauth
import (
"errors"
"fmt"
"strings"
"time"
"github.com/hashicorp/vault-plugin-auth-gcp/plugin/util"
"github.com/hashicorp/vault/helper/policyutil"
"github.com/hashicorp/vault/helper/strutil"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
"strings"
"time"
)
const (
iamRoleType = "iam"
serviceAccountAttr = "service-accounts"
serviceAccountWildcard = "*"
// Role types
iamRoleType = "iam"
gceRoleType = "gce"
// Errors
errEmptyRoleName = "role name is required"
errEmptyRoleType = "role type cannot be empty"
errEmptyProjectId = "project id cannot be empty"
errEmptyIamServiceAccounts = "IAM role type must have at least one service account"
errTemplateEditListWrongType = "role is type '%s', cannot edit attribute '%s' (expected role type: '%s')"
errTemplateInvalidRoleTypeArgs = "invalid args found for role of type %s: %s"
// Other
serviceAccountsWildcard = "*"
// Default duration that JWT tokens must expire within to be accepted (currently only IAM)
defaultIamMaxJwtExpMinutes int = 15
// Max allowed duration that all JWT tokens must expire within to be accepted
maxJwtExpMaxMinutes int = 60
)
var baseRoleFieldSchema map[string]*framework.FieldSchema = map[string]*framework.FieldSchema{
"name": {
Type: framework.TypeString,
Description: "Name of the role.",
},
"type": {
Type: framework.TypeString,
Description: "Type of the role. Currently supported: iam, gce",
},
"policies": {
Type: framework.TypeCommaStringSlice,
Description: "Policies to be set on tokens issued using this role.",
},
// Token Limits
"ttl": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: `
Duration in seconds after which the issued token should expire. Defaults to 0,
in which case the value will fallback to the system/mount defaults.`,
},
"max_ttl": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: "The maximum allowed lifetime of tokens issued using this role.",
},
"period": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: `
If set, indicates that the token generated using this role should never expire. The token should be renewed within the
duration specified by this value. At each renewal, the token's TTL will be set to the value of this parameter.`,
},
// -- GCP Information
"project_id": {
Type: framework.TypeString,
Description: `The id of the project that authorized instances must belong to for this role.`,
},
"bound_service_accounts": {
Type: framework.TypeCommaStringSlice,
Description: `
Can be set for both 'iam' and 'gce' roles (required for 'iam'). A comma-seperated list of authorized service accounts.
If the single value "*" is given, this is assumed to be all service accounts under the role's project. If this
is set on a GCE role, the inferred service account from the instance metadata token will be used.`,
},
"service_accounts": {
Type: framework.TypeCommaStringSlice,
Description: `Deprecated, use bound_service_accounts instead.`,
},
}
var iamOnlyFieldSchema map[string]*framework.FieldSchema = map[string]*framework.FieldSchema{
"max_jwt_exp": {
Type: framework.TypeDurationSecond,
Default: defaultIamMaxJwtExpMinutes * 60,
Description: `Currently enabled for 'iam' only. Duration in seconds from time of validation that a JWT must expire within.`,
},
"allow_gce_inference": {
Type: framework.TypeBool,
Default: true,
Description: `'iam' roles only. If false, Vault will not not allow GCE instances to login in against this role`,
},
}
var gceOnlyFieldSchema map[string]*framework.FieldSchema = map[string]*framework.FieldSchema{
"bound_zone": {
Type: framework.TypeString,
Description: `
"gce" roles only. If set, determines the zone that a GCE instance must belong to. If a group is provided, it is assumed
to be a zonal group and the group must belong to this zone.`,
},
"bound_region": {
Type: framework.TypeString,
Description: `
"gce" roles only. If set, determines the region that a GCE instance must belong to. If a group is provided, it is
assumed to be a regional group and the group must belong to this region. If zone is provided, region will be ignored`,
},
"bound_instance_group": {
Type: framework.TypeString,
Description: `"gce" roles only. If set, determines the instance group that an authorized instance must belong to.`,
},
"bound_labels": {
Type: framework.TypeCommaStringSlice,
Description: `
"gce" roles only. A comma-separated list of Google Cloud Platform labels formatted as "$key:$value" strings that are
required for authorized GCE instances.`,
},
}
// pathsRole creates paths for listing roles and CRUD operations.
func pathsRole(b *GcpAuthBackend) []*framework.Path {
roleFieldSchema := map[string]*framework.FieldSchema{}
for k, v := range baseRoleFieldSchema {
roleFieldSchema[k] = v
}
for k, v := range iamOnlyFieldSchema {
roleFieldSchema[k] = v
}
for k, v := range gceOnlyFieldSchema {
roleFieldSchema[k] = v
}
paths := []*framework.Path{
{
Pattern: fmt.Sprintf("role/%s", framework.GenericNameRegex("name")),
Fields: map[string]*framework.FieldSchema{
"name": {
Type: framework.TypeString,
Description: "Name of the role.",
},
"type": {
Type: framework.TypeString,
Description: "Type of the role. Currently supported: iam",
},
"policies": {
Type: framework.TypeString,
Description: "Policies to be set on tokens issued using this role.",
},
"project_id": {
Type: framework.TypeString,
Description: `The id of the project for service accounts allowed to authenticate to this role.`,
},
"max_jwt_exp": {
Type: framework.TypeDurationSecond,
Default: defaultMaxJwtExpMin * 3600,
Description: `Duration in seconds from time of validation that a JWT must expire within.`,
},
// Token Limits
"ttl": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: `Duration in seconds after which the issued token should expire. Defaults to 0, in which case the value will fallback to the system/mount defaults.`,
},
"max_ttl": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: "The maximum allowed lifetime of tokens issued using this role.",
},
"period": {
Type: framework.TypeDurationSecond,
Default: 0,
Description: `
If set, indicates that the token generated using this role should never expire. The token should be renewed within the
duration specified by this value. At each renewal, the token's TTL will be set to the value of this parameter.`,
},
// IAM Role Domain
"service_accounts": {
Type: framework.TypeString,
Description: `
A comma-seperated list of service accounts to allow to login as this role. If the single value "*" is given, this
is assumed to be all service accounts under the role's project.`,
},
},
Pattern: fmt.Sprintf("role/%s", framework.GenericNameRegex("name")),
Fields: roleFieldSchema,
ExistenceCheck: b.pathRoleExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.DeleteOperation: b.pathRoleDelete,
logical.ReadOperation: b.pathRoleRead,
@ -89,7 +155,6 @@ is assumed to be all service accounts under the role's project.`,
// Paths for listing roles
{
Pattern: "role/?",
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.ListOperation: b.pathRoleList,
},
@ -99,7 +164,6 @@ is assumed to be all service accounts under the role's project.`,
},
{
Pattern: "roles/?",
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.ListOperation: b.pathRoleList,
},
@ -107,9 +171,57 @@ is assumed to be all service accounts under the role's project.`,
HelpSynopsis: pathListRolesHelpSyn,
HelpDescription: pathListRolesHelpDesc,
},
// Edit service accounts on an IAM role
{
Pattern: fmt.Sprintf("role/%s/service-accounts", framework.GenericNameRegex("name")),
Fields: map[string]*framework.FieldSchema{
"name": {
Type: framework.TypeString,
Description: "Name of the role.",
},
"add": {
Type: framework.TypeCommaStringSlice,
Description: "Service-account emails or IDs to add.",
},
"remove": {
Type: framework.TypeCommaStringSlice,
Description: "Service-account emails or IDs to remove.",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.UpdateOperation: b.pathRoleEditIamServiceAccounts,
},
HelpSynopsis: "Add or remove service accounts for an existing `iam` role",
HelpDescription: "Add or remove service accounts from the list bound to an existing `iam` role",
},
// Edit labels on an GCE role
{
Pattern: fmt.Sprintf("role/%s/labels", framework.GenericNameRegex("name")),
Fields: map[string]*framework.FieldSchema{
"name": {
Type: framework.TypeString,
Description: "Name of the role.",
},
"add": {
Type: framework.TypeCommaStringSlice,
Description: "BoundLabels to add (in $key:$value)",
},
"remove": {
Type: framework.TypeCommaStringSlice,
Description: "Label key values to remove",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.UpdateOperation: b.pathRoleEditGceLabels,
},
HelpSynopsis: "Add or remove labels for an existing 'gce' role",
HelpDescription: `Add or remove labels for an existing 'gce' role. 'add' labels should be
of format '$key:$value' and 'remove' labels should be a list of keys to remove.`,
},
}
paths = append(paths, b.pathRoleEditListAttr(serviceAccountAttr)...)
return paths
}
@ -147,22 +259,34 @@ func (b *GcpAuthBackend) pathRoleRead(req *logical.Request, data *framework.Fiel
}
roleMap := map[string]interface{}{
"role_type": role.RoleType,
"project_id": role.ProjectId,
"policies": role.Policies,
"max_jwt_exp": int64(role.MaxJwtExp / time.Second),
"ttl": int64(role.TTL / time.Second),
"max_ttl": int64(role.MaxTTL / time.Second),
"period": int64(role.Period / time.Second),
"role_type": role.RoleType,
"project_id": role.ProjectId,
"policies": role.Policies,
"ttl": int64(role.TTL / time.Second),
"max_ttl": int64(role.MaxTTL / time.Second),
"period": int64(role.Period / time.Second),
"bound_service_accounts": role.BoundServiceAccounts,
}
switch role.RoleType {
case iamRoleType:
roleMap["service_accounts"] = role.ServiceAccounts
roleMap["max_jwt_exp"] = int64(role.MaxJwtExp / time.Second)
roleMap["allow_gce_inference"] = role.AllowGCEInference
case gceRoleType:
roleMap["bound_zone"] = role.BoundZone
roleMap["bound_region"] = role.BoundRegion
roleMap["bound_instance_group"] = role.BoundInstanceGroup
// Ensure values are not nil to avoid errors during plugin RPC conversions.
if role.BoundLabels != nil && len(role.BoundLabels) > 0 {
roleMap["bound_labels"] = role.BoundLabels
} else {
roleMap["bound_labels"] = ""
}
}
return &logical.Response{
Data: roleMap}, nil
Data: roleMap,
}, nil
}
func (b *GcpAuthBackend) pathRoleCreateUpdate(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
@ -179,16 +303,10 @@ func (b *GcpAuthBackend) pathRoleCreateUpdate(req *logical.Request, data *framew
role = &gcpRole{}
}
warnResp, err := role.updateRole(b.System(), req.Operation, data)
errResp, err := b.storeRole(req.Storage, name, role)
if err != nil {
return nil, err
} else if errResp != nil {
return errResp, err
if err := role.updateRole(b.System(), req.Operation, data); err != nil {
return logical.ErrorResponse(err.Error()), nil
}
return warnResp, nil
return b.storeRole(req.Storage, name, role)
}
func (b *GcpAuthBackend) pathRoleList(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
@ -210,63 +328,29 @@ the authorization token for the instance can access.
const pathListRolesHelpSyn = `Lists all the roles that are registered with Vault.`
const pathListRolesHelpDesc = `Lists all roles under the GCP backends by name.`
func (b *GcpAuthBackend) pathRoleEditListAttr(attr string) []*framework.Path {
return []*framework.Path{
{
Pattern: fmt.Sprintf("role/%s/%s", framework.GenericNameRegex("name"), attr),
Fields: map[string]*framework.FieldSchema{
"name": {
Type: framework.TypeString,
Description: "Name of the role.",
},
"add": {
Type: framework.TypeCommaStringSlice,
Description: "Values to add.",
},
"remove": {
Type: framework.TypeCommaStringSlice,
Description: "Values to remove.",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.UpdateOperation: b.pathRoleEditListOperator(attr),
},
HelpSynopsis: pathAddToListHelpSyn,
HelpDescription: pathAddToListHelpDesc,
},
func (b *GcpAuthBackend) pathRoleEditIamServiceAccounts(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleName := data.Get("name").(string)
if roleName == "" {
return logical.ErrorResponse(errEmptyRoleName), nil
}
}
func (b *GcpAuthBackend) pathRoleEditListOperator(attr string) framework.OperationFunc {
return func(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleName := data.Get("name").(string)
if roleName == "" {
return logical.ErrorResponse(errEmptyRoleName), nil
}
toAdd := data.Get("add").([]string)
toRemove := data.Get("remove").([]string)
if len(toAdd) == 0 && len(toRemove) == 0 {
return logical.ErrorResponse("must provide at least one value to add or remove"), nil
}
role, err := b.role(req.Storage, roleName)
if err != nil {
return nil, err
}
switch attr {
case serviceAccountAttr:
if role.RoleType != iamRoleType {
return logical.ErrorResponse(fmt.Sprintf("Cannot edit service accounts on non-IAM roles, role is type %s", role.RoleType)), nil
}
role.ServiceAccounts = editStringValues(role.ServiceAccounts, toAdd, toRemove)
default:
return nil, fmt.Errorf("unsupported attribute '%s'", attr)
}
return b.storeRole(req.Storage, roleName, role)
toAdd := data.Get("add").([]string)
toRemove := data.Get("remove").([]string)
if len(toAdd) == 0 && len(toRemove) == 0 {
return logical.ErrorResponse("must provide at least one value to add or remove"), nil
}
role, err := b.role(req.Storage, roleName)
if err != nil {
return nil, err
}
if role.RoleType != iamRoleType {
return logical.ErrorResponse(fmt.Sprintf(errTemplateEditListWrongType, role.RoleType, "service_accounts", iamRoleType)), nil
}
role.BoundServiceAccounts = editStringValues(role.BoundServiceAccounts, toAdd, toRemove)
return b.storeRole(req.Storage, roleName, role)
}
func editStringValues(initial []string, toAdd []string, toRemove []string) []string {
@ -294,9 +378,41 @@ func editStringValues(initial []string, toAdd []string, toRemove []string) []str
return updated
}
const pathAddToListHelpSyn = `Add and remove values for an list attribute on an existing role`
const pathAddToListHelpDesc = `This path allows a user to add values to and/or remove from a list of values
for a given role's list attribute`
func (b *GcpAuthBackend) pathRoleEditGceLabels(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleName := data.Get("name").(string)
if roleName == "" {
return logical.ErrorResponse(errEmptyRoleName), nil
}
toAdd := data.Get("add").([]string)
toRemove := data.Get("remove").([]string)
if len(toAdd) == 0 && len(toRemove) == 0 {
return logical.ErrorResponse("must provide at least one value to add or remove"), nil
}
role, err := b.role(req.Storage, roleName)
if err != nil {
return nil, err
}
if role.RoleType != gceRoleType {
return logical.ErrorResponse(fmt.Sprintf(errTemplateEditListWrongType, role.RoleType, "labels", gceRoleType)), nil
}
labelsToAdd, invalidLabels := util.ParseGcpLabels(toAdd)
if len(invalidLabels) > 0 {
return logical.ErrorResponse(fmt.Sprintf("given invalid labels to add: %q", invalidLabels)), nil
}
for k, v := range labelsToAdd {
role.BoundLabels[k] = v
}
for _, k := range toRemove {
delete(role.BoundLabels, k)
}
return b.storeRole(req.Storage, roleName, role)
}
// role reads a gcpRole from storage. This assumes the caller has already obtained the role lock.
func (b *GcpAuthBackend) role(s logical.Storage, name string) (*gcpRole, error) {
@ -318,9 +434,18 @@ func (b *GcpAuthBackend) role(s logical.Storage, name string) (*gcpRole, error)
}
// storeRole saves the gcpRole to storage.
// The returned response may contain either warnings or an error response,
// but will be nil if error is not nil
func (b *GcpAuthBackend) storeRole(s logical.Storage, roleName string, role *gcpRole) (*logical.Response, error) {
if err := role.validate(b.System()); err != nil {
var resp *logical.Response
warnings, err := role.validate(b.System())
if err != nil {
return logical.ErrorResponse(err.Error()), nil
} else if len(warnings) > 0 {
resp = &logical.Response{
Warnings: warnings,
}
}
entry, err := logical.StorageEntryJSON(fmt.Sprintf("role/%s", roleName), role)
@ -328,7 +453,11 @@ func (b *GcpAuthBackend) storeRole(s logical.Storage, roleName string, role *gcp
return nil, err
}
return nil, s.Put(entry)
if err := s.Put(entry); err != nil {
return nil, err
}
return resp, nil
}
type gcpRole struct {
@ -341,9 +470,6 @@ type gcpRole struct {
// Policies for Vault to assign to authorized entities.
Policies []string `json:"policies" structs:"policies" mapstructure:"policies"`
// MaxJwtExp is the duration from time of authentication that a JWT used to authenticate to role must expire within.
MaxJwtExp time.Duration `json:"max_jwt_exp" structs:"max_jwt_exp" mapstructure:"max_jwt_exp"`
// TTL of Vault auth leases under this role.
TTL time.Duration `json:"ttl" structs:"ttl" mapstructure:"ttl"`
@ -355,43 +481,53 @@ type gcpRole struct {
// with TTL equal to this value.
Period time.Duration `json:"period" structs:"period" mapstructure:"period"`
// IAM-specific attributes
ServiceAccounts []string `json:"service_accounts" structs:"service_accounts" mapstructure:"service_accounts"`
// Service accounts allowed to login under this role.
BoundServiceAccounts []string `json:"bound_service_accounts" structs:"bound_service_accounts" mapstructure:"bound_service_accounts"`
// --| IAM-only attributes |--
// MaxJwtExp is the duration from time of authentication that a JWT used to authenticate to role must expire within.
// TODO(emilymye): Allow this to be updated for GCE roles once 'exp' parameter has been allowed for GCE metadata.
MaxJwtExp time.Duration `json:"max_jwt_exp" structs:"max_jwt_exp" mapstructure:"max_jwt_exp"`
// AllowGCEInference, if false, does not allow a GCE instance to login under this 'iam' role. If true (default),
// a service account is inferred from the instance metadata and used as the authenticating instance.
AllowGCEInference bool `json:"allow_gce_inference" structs:"allow_gce_inference" mapstructure:"allow_gce_inference"`
// --| GCE-only attributes |--
// BoundRegion that instances must belong to in order to login under this role.
BoundRegion string `json:"bound_region" structs:"bound_region" mapstructure:"bound_region"`
// BoundZone that instances must belong to in order to login under this role.
BoundZone string `json:"bound_zone" structs:"bound_zone" mapstructure:"bound_zone"`
// Instance group that instances must belong to in order to login under this role.
BoundInstanceGroup string `json:"bound_instance_group" structs:"bound_instance_group" mapstructure:"bound_instance_group"`
// BoundLabels that instances must currently have set in order to login under this role.
BoundLabels map[string]string `json:"bound_labels" structs:"bound_labels" mapstructure:"bound_labels"`
}
// Update updates the given role with values parsed/validated from given FieldData.
// Exactly one of the response and error will be nil. The response is only used to pass back warnings.
// This method does not validate the role. Validation is done before storage.
func (role *gcpRole) updateRole(sys logical.SystemView, op logical.Operation, data *framework.FieldData) (*logical.Response, error) {
warnResp := &logical.Response{}
func (role *gcpRole) updateRole(sys logical.SystemView, op logical.Operation, data *framework.FieldData) error {
// Set role type
roleTypeRaw, ok := data.GetOk("type")
if ok {
if op == logical.UpdateOperation {
return nil, errors.New("role type cannot be changed for an existing role")
return errors.New("role type cannot be changed for an existing role")
}
role.RoleType = roleTypeRaw.(string)
} else if op == logical.CreateOperation {
return nil, errors.New("role type must be provided for a new role")
}
//Update fields specific to this type
switch role.RoleType {
case iamRoleType:
if err := role.updateIamFields(data, op); err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("role type '%s' is not supported", role.RoleType)
return errors.New(errEmptyRoleType)
}
// Update policies.
policies, ok := data.GetOk("policies")
if ok {
role.Policies = policyutil.ParsePolicies(policies.(string))
role.Policies = policyutil.ParsePolicies(policies)
} else if op == logical.CreateOperation {
role.Policies = policyutil.ParsePolicies(data.Get("policies").(string))
role.Policies = policyutil.ParsePolicies(data.Get("policies"))
}
// Update GCP project id.
@ -400,24 +536,11 @@ func (role *gcpRole) updateRole(sys logical.SystemView, op logical.Operation, da
role.ProjectId = projectIdRaw.(string)
}
// Update max JWT exp duration.
maxJwtExp, ok := data.GetOk("max_jwt_exp")
if ok {
role.MaxJwtExp = time.Duration(maxJwtExp.(int)) * time.Second
} else {
role.MaxJwtExp = time.Duration(defaultMaxJwtExpMin) * time.Minute
}
// Update token TTL.
ttlRaw, ok := data.GetOk("ttl")
if ok {
role.TTL = time.Duration(ttlRaw.(int)) * time.Second
defaultLeaseTTL := sys.DefaultLeaseTTL()
if role.TTL > defaultLeaseTTL {
warnResp.AddWarning(fmt.Sprintf(
"Given ttl of %d seconds greater than current mount/system default of %d seconds; ttl will be capped at login time",
role.TTL/time.Second, defaultLeaseTTL/time.Second))
}
} else if op == logical.CreateOperation {
role.TTL = time.Duration(data.Get("ttl").(int)) * time.Second
}
@ -426,12 +549,6 @@ func (role *gcpRole) updateRole(sys logical.SystemView, op logical.Operation, da
maxTTLRaw, ok := data.GetOk("max_ttl")
if ok {
role.MaxTTL = time.Duration(maxTTLRaw.(int)) * time.Second
systemMaxTTL := sys.MaxLeaseTTL()
if role.MaxTTL > systemMaxTTL {
warnResp.AddWarning(fmt.Sprintf(
"Given max_ttl of %d seconds greater than current mount/system default of %d seconds; max_ttl will be capped at login time",
role.MaxTTL/time.Second, systemMaxTTL/time.Second))
}
} else if op == logical.CreateOperation {
role.MaxTTL = time.Duration(data.Get("max_ttl").(int)) * time.Second
}
@ -444,68 +561,192 @@ func (role *gcpRole) updateRole(sys logical.SystemView, op logical.Operation, da
role.Period = time.Second * time.Duration(data.Get("period").(int))
}
if len(warnResp.Warnings) == 0 {
warnResp = nil
// Update bound GCP service accounts.
serviceAccountsRaw, ok := data.GetOk("bound_service_accounts")
if ok {
role.BoundServiceAccounts = serviceAccountsRaw.([]string)
} else {
// Check for older version of param name
serviceAccountsRaw, ok := data.GetOk("service_accounts")
if ok {
role.BoundServiceAccounts = serviceAccountsRaw.([]string)
}
}
return warnResp, nil
}
func (role *gcpRole) validate(sys logical.SystemView) error {
// Update fields specific to this type
switch role.RoleType {
case iamRoleType:
if err := role.validateIamFields(); err != nil {
if err := checkInvalidRoleTypeArgs(data, gceOnlyFieldSchema); err != nil {
return err
}
if err := role.updateIamFields(data, op); err != nil {
return err
}
case gceRoleType:
if err := checkInvalidRoleTypeArgs(data, iamOnlyFieldSchema); err != nil {
return err
}
if err := role.updateGceFields(data, op); err != nil {
return err
}
default:
return fmt.Errorf("role type '%s' is invalid", role.RoleType)
}
if len(role.Policies) == 0 {
return errors.New("role must have at least one bound policy")
}
if role.ProjectId == "" {
return errors.New("role cannot have empty project_id")
}
if role.MaxJwtExp > time.Hour {
return errors.New("max_jwt_exp cannot be more than one hour")
}
if role.MaxTTL < time.Duration(0) {
return errors.New("max_ttl cannot be negative")
}
if role.MaxTTL != 0 && role.MaxTTL < role.TTL {
return errors.New("ttl should be shorter than max_ttl")
}
if role.Period > sys.MaxLeaseTTL() {
return fmt.Errorf("'period' of '%s' is greater than the backend's maximum lease TTL of '%s'", role.Period.String(), sys.MaxLeaseTTL().String())
}
return nil
}
func (role *gcpRole) validate(sys logical.SystemView) (warnings []string, err error) {
warnings = []string{}
switch role.RoleType {
case iamRoleType:
if warnings, err = role.validateForIAM(); err != nil {
return warnings, err
}
case gceRoleType:
if warnings, err = role.validateForGCE(); err != nil {
return warnings, err
}
case "":
return warnings, errors.New(errEmptyRoleType)
default:
return warnings, fmt.Errorf("role type '%s' is invalid", role.RoleType)
}
if role.ProjectId == "" {
return warnings, errors.New(errEmptyProjectId)
}
defaultLeaseTTL := sys.DefaultLeaseTTL()
if role.TTL > defaultLeaseTTL {
warnings = append(warnings, fmt.Sprintf(
"Given ttl of %d seconds greater than current mount/system default of %d seconds; ttl will be capped at login time",
role.TTL/time.Second, defaultLeaseTTL/time.Second))
}
defaultMaxTTL := sys.MaxLeaseTTL()
if role.MaxTTL > defaultMaxTTL {
warnings = append(warnings, fmt.Sprintf(
"Given max_ttl of %d seconds greater than current mount/system default of %d seconds; max_ttl will be capped at login time",
role.MaxTTL/time.Second, defaultMaxTTL/time.Second))
}
if role.MaxTTL < time.Duration(0) {
return warnings, errors.New("max_ttl cannot be negative")
}
if role.MaxTTL != 0 && role.MaxTTL < role.TTL {
return warnings, errors.New("ttl should be shorter than max_ttl")
}
if role.Period > sys.MaxLeaseTTL() {
return warnings, fmt.Errorf("'period' of '%s' is greater than the backend's maximum lease TTL of '%s'", role.Period.String(), sys.MaxLeaseTTL().String())
}
return warnings, nil
}
// updateIamFields updates IAM-only fields for a role.
func (role *gcpRole) updateIamFields(data *framework.FieldData, op logical.Operation) error {
serviceAccountsRaw, ok := data.GetOk("service_accounts")
allowGCEInference, ok := data.GetOk("allow_gce_inference")
if ok {
role.ServiceAccounts = strings.Split(serviceAccountsRaw.(string), ",")
role.AllowGCEInference = allowGCEInference.(bool)
} else if op == logical.CreateOperation {
return errors.New(errEmptyIamServiceAccounts)
role.AllowGCEInference = data.Get("allow_gce_inference").(bool)
}
maxJwtExp, ok := data.GetOk("max_jwt_exp")
if ok {
role.MaxJwtExp = time.Duration(maxJwtExp.(int)) * time.Second
} else if op == logical.CreateOperation {
role.MaxJwtExp = time.Duration(defaultIamMaxJwtExpMinutes) * time.Minute
}
return nil
}
// updateGceFields updates GCE-only fields for a role.
func (role *gcpRole) updateGceFields(data *framework.FieldData, op logical.Operation) error {
region, hasRegion := data.GetOk("bound_region")
if hasRegion {
role.BoundRegion = region.(string)
}
zone, hasZone := data.GetOk("bound_zone")
if hasZone {
role.BoundZone = zone.(string)
}
instanceGroup, ok := data.GetOk("bound_instance_group")
if ok {
role.BoundInstanceGroup = instanceGroup.(string)
}
labels, ok := data.GetOk("bound_labels")
if ok {
var invalidLabels []string
role.BoundLabels, invalidLabels = util.ParseGcpLabels(labels.([]string))
if len(invalidLabels) > 0 {
return fmt.Errorf("invalid labels given: %q", invalidLabels)
}
}
return nil
}
// validateIamFields validates the IAM-only fields for a role.
func (role *gcpRole) validateIamFields() error {
if len(role.ServiceAccounts) == 0 {
return errors.New(errEmptyIamServiceAccounts)
func (role *gcpRole) validateForIAM() (warnings []string, err error) {
if len(role.BoundServiceAccounts) == 0 {
return []string{}, errors.New(errEmptyIamServiceAccounts)
}
if len(role.ServiceAccounts) > 1 && strutil.StrListContains(role.ServiceAccounts, serviceAccountWildcard) {
return fmt.Errorf("cannot provide IAM service account wildcard '%s' (for all service accounts) with other service accounts", serviceAccountWildcard)
if len(role.BoundServiceAccounts) > 1 && strutil.StrListContains(role.BoundServiceAccounts, serviceAccountsWildcard) {
return []string{}, fmt.Errorf("cannot provide IAM service account wildcard '%s' (for all service accounts) with other service accounts", serviceAccountsWildcard)
}
maxMaxJwtExp := time.Duration(maxJwtExpMaxMinutes) * time.Minute
if role.MaxJwtExp > maxMaxJwtExp {
return warnings, fmt.Errorf("max_jwt_exp cannot be more than %d minutes", maxJwtExpMaxMinutes)
}
return []string{}, nil
}
// validateGceFields validates the GCE-only fields for a role.
func (role *gcpRole) validateForGCE() (warnings []string, err error) {
warnings = []string{}
hasRegion := len(role.BoundRegion) > 0
hasZone := len(role.BoundZone) > 0
hasRegionOrZone := hasRegion || hasZone
hasInstanceGroup := len(role.BoundInstanceGroup) > 0
if hasInstanceGroup && !hasRegionOrZone {
return warnings, errors.New(`region or zone information must be specified if a group is given`)
}
if hasRegion && hasZone {
warnings = append(warnings, "Given both region and zone for role of type 'gce' - region will be ignored.")
}
return warnings, nil
}
// checkInvalidRoleTypeArgs checks that the data provided does not contain arguments
// for a different role type. If it does find some, it will return an error with the
// invalid args.
func checkInvalidRoleTypeArgs(data *framework.FieldData, invalidSchema map[string]*framework.FieldSchema) error {
invalidArgs := []string{}
for k := range data.Raw {
if _, ok := baseRoleFieldSchema[k]; ok {
continue
}
if _, ok := invalidSchema[k]; ok {
invalidArgs = append(invalidArgs, k)
}
}
if len(invalidArgs) > 0 {
return fmt.Errorf(errTemplateInvalidRoleTypeArgs, data.Get("type"), strings.Join(invalidArgs, ","))
}
return nil
}

126
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/util/computeutil.go generated vendored Normal file
View file

@ -0,0 +1,126 @@
package util
import (
"errors"
"fmt"
"google.golang.org/api/compute/v1"
"strconv"
"time"
)
type CustomJWTClaims struct {
Google *GoogleJWTClaims `json:"google,omitempty"`
}
type GoogleJWTClaims struct {
Compute *GCEIdentityMetadata `json:"compute_engine,omitempty"`
}
type GCEIdentityMetadata struct {
// ProjectId is the ID for the project where you created the instance.
ProjectId string `json:"project_id" structs:"project_id" mapstructure:"project_id"`
// ProjectNumber is the unique ID for the project where you created the instance.
ProjectNumber int64 `json:"project_number" structs:"project_number" mapstructure:"project_number"`
// Zone is the zone where the instance is located.
Zone string `json:"zone" structs:"zone" mapstructure:"zone"`
// InstanceId is the unique ID for the instance to which this token belongs. This ID is unique and never reused.
InstanceId string `json:"instance_id" structs:"instance_id" mapstructure:"instance_id"`
// InstanceName is the name of the instance to which this token belongs. This name can be reused by several
// instances over time, so use the instance_id value to identify a unique instance ID.
InstanceName string `json:"instance_name" structs:"instance_name" mapstructure:"instance_name"`
// CreatedAt is a unix timestamp indicating when you created the instance.
CreatedAt int64 `json:"instance_creation_timestamp" structs:"instance_creation_timestamp" mapstructure:"instance_creation_timestamp"`
}
// GetVerifiedInstance returns the Instance as described by the identity metadata or an error.
// If the instance has an invalid status or its creation timestamp does not match the metadata value,
// this will return nil and an error.
func (meta *GCEIdentityMetadata) GetVerifiedInstance(gceClient *compute.Service) (*compute.Instance, error) {
instance, err := gceClient.Instances.Get(meta.ProjectId, meta.Zone, meta.InstanceName).Do()
if err != nil {
return nil, fmt.Errorf("unable to find instance associated with token: %v", err)
}
if !IsValidInstanceStatus(instance.Status) {
return nil, fmt.Errorf("authenticating instance %s found but has invalid status '%s'", instance.Name, instance.Status)
}
// Parse the metadata CreatedAt into time.
metaTime := time.Unix(meta.CreatedAt, 0)
// Parse instance creationTimestamp into time.
actualTime, err := time.Parse(time.RFC3339Nano, instance.CreationTimestamp)
if err != nil {
return nil, fmt.Errorf("instance 'creationTimestamp' field could not be parsed into time: %s", instance.CreationTimestamp)
}
// Return an error if the metadata creation timestamp is before the instance creation timestamp.
delta := float64(metaTime.Sub(actualTime)) / float64(time.Second)
if delta < -1 {
return nil, fmt.Errorf("metadata instance_creation_timestamp %d is before instance's creation time %d", actualTime.Unix(), metaTime.Unix())
}
return instance, nil
}
var validInstanceStates map[string]struct{} = map[string]struct{}{
"PROVISIONING": struct{}{},
"RUNNING": struct{}{},
"STAGING": struct{}{},
}
func IsValidInstanceStatus(status string) bool {
_, ok := validInstanceStates[status]
return ok
}
func GetInstanceMetadataFromAuth(authMetadata map[string]string) (*GCEIdentityMetadata, error) {
meta := &GCEIdentityMetadata{}
var ok bool
var err error
meta.ProjectId, ok = authMetadata["project_id"]
if !ok {
return nil, errors.New("expected 'project_id' field")
}
meta.Zone, ok = authMetadata["zone"]
if !ok {
return nil, errors.New("expected 'zone' field")
}
meta.InstanceId, ok = authMetadata["instance_id"]
if !ok {
return nil, errors.New("expected 'instance_id' field")
}
meta.InstanceName, ok = authMetadata["instance_name"]
if !ok {
return nil, errors.New("expected 'instance_name' field")
}
// Parse numbers back into int values.
projectNumber, ok := authMetadata["project_number"]
if !ok {
return nil, errors.New("expected 'project_number' field, got %v")
}
meta.ProjectNumber, err = strconv.ParseInt(projectNumber, 10, 64)
if err != nil {
return nil, fmt.Errorf("expected 'project_number' value '%s' to be a int64", projectNumber)
}
createdAt, ok := authMetadata["instance_creation_timestamp"]
if !ok {
return nil, errors.New("expected 'instance_creation_timestamp' field")
}
meta.CreatedAt, err = strconv.ParseInt(createdAt, 10, 64)
if err != nil {
return nil, fmt.Errorf("expected 'instance_creation_timestamp' value '%s' to be int64", createdAt)
}
return meta, nil
}

78
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/util/credsutil.go → vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/util/gcputil.go generated vendored
View file

@ -7,10 +7,19 @@ import (
"encoding/json"
"encoding/pem"
"errors"
"fmt"
"github.com/hashicorp/go-cleanhttp"
"golang.org/x/oauth2"
"golang.org/x/oauth2/jwt"
googleoauth2 "google.golang.org/api/oauth2/v2"
"gopkg.in/square/go-jose.v2"
"net/http"
"regexp"
"strings"
)
const (
labelRegex string = "^(?P<key>[a-z]([\\w-]+)?):(?P<value>[\\w-]*)$"
)
// GcpCredentials represents a simplified version of the Google Cloud Platform credentials file format.
@ -64,3 +73,72 @@ func PublicKey(pemString string) (interface{}, error) {
return cert.PublicKey, nil
}
// OAuth2RSAPublicKey returns the PEM key file string for Google Oauth2 public cert for the given 'kid' id.
func OAuth2RSAPublicKey(kid, oauth2BasePath string) (interface{}, error) {
oauth2Client, err := googleoauth2.New(cleanhttp.DefaultClient())
if err != nil {
return "", err
}
if len(oauth2BasePath) > 0 {
oauth2Client.BasePath = oauth2BasePath
}
jwks, err := oauth2Client.GetCertForOpenIdConnect().Do()
if err != nil {
return nil, err
}
for _, key := range jwks.Keys {
if key.Kid == kid && jose.SignatureAlgorithm(key.Alg) == jose.RS256 {
// Trim extra '=' from key so it can be parsed.
key.N = strings.TrimRight(key.N, "=")
js, err := key.MarshalJSON()
if err != nil {
return nil, fmt.Errorf("unable to marshal json %v", err)
}
key := &jose.JSONWebKey{}
if err := key.UnmarshalJSON(js); err != nil {
return nil, fmt.Errorf("unable to unmarshal json %v", err)
}
return key.Key, nil
}
}
return nil, fmt.Errorf("could not find public key with kid '%s'", kid)
}
func ParseGcpLabels(labels []string) (parsed map[string]string, invalid []string) {
parsed = map[string]string{}
invalid = []string{}
re := regexp.MustCompile(labelRegex)
for _, labelStr := range labels {
matches := re.FindStringSubmatch(labelStr)
if len(matches) == 0 {
invalid = append(invalid, labelStr)
continue
}
captureNames := re.SubexpNames()
var keyPtr, valPtr *string
for i, name := range captureNames {
if name == "key" {
keyPtr = &matches[i]
} else if name == "value" {
valPtr = &matches[i]
}
}
if keyPtr == nil || valPtr == nil || len(*keyPtr) < 1 {
invalid = append(invalid, labelStr)
continue
} else {
parsed[*keyPtr] = *valPtr
}
}
return parsed, invalid
}

23
vendor/github.com/hashicorp/vault-plugin-auth-gcp/plugin/util/iamutil.go generated vendored
View file

@ -2,9 +2,14 @@ package util
import (
"encoding/json"
"errors"
"fmt"
"google.golang.org/api/iam/v1"
"time"
// TODO(emilymye): Currently square's JOSE library doesn't allow for obtaining claims without providing a key.
// Replace SermoDigital in this file once it is possible to verify the JWT using claims.
"github.com/SermoDigital/jose/jws"
)
const (
@ -35,20 +40,32 @@ func ServiceAccountLoginJwt(
func ServiceAccount(iamClient *iam.Service, accountId, projectName string) (*iam.ServiceAccount, error) {
accountResource := fmt.Sprintf(serviceAccountTemplate, projectName, accountId)
account, err := iamClient.Projects.ServiceAccounts.Get(accountResource).Do()
if err != nil {
return nil, fmt.Errorf("service account '%s' does not exist", accountResource)
}
return account, nil
}
// serviceAccount wraps a call to the GCP IAM API to get a service account key.
// ServiceAccountKey wraps a call to the GCP IAM API to get a service account key.
func ServiceAccountKey(iamClient *iam.Service, keyId, accountId, projectName string) (*iam.ServiceAccountKey, error) {
keyResource := fmt.Sprintf(serviceAccountKeyTemplate, projectName, accountId, keyId)
key, err := iamClient.Projects.ServiceAccounts.Keys.Get(keyResource).PublicKeyType(serviceAccountKeyFileType).Do()
if err != nil {
return nil, fmt.Errorf("service account key '%s' does not exist", keyResource)
}
return key, nil
}
// ParseServiceAccountFromIAMJWT parses the service account from the 'sub' claim given a serialized signed JWT.
func ParseServiceAccountFromIAMJWT(signedJwt string) (string, error) {
jwtVal, err := jws.ParseJWT([]byte(signedJwt))
if err != nil {
return "", fmt.Errorf("could not parse service account from JWT 'sub' claim: %v", err)
}
accountId, ok := jwtVal.Claims().Subject()
if !ok {
return "", errors.New("expected 'sub' claim with service account ID or name")
}
return accountId, nil
}

22099
vendor/google.golang.org/api/compute/v1/compute-api.json generated vendored Normal file
View file

File diff suppressed because it is too large Load diff

69480
vendor/google.golang.org/api/compute/v1/compute-gen.go generated vendored Normal file
View file

File diff suppressed because it is too large Load diff

294
vendor/google.golang.org/api/oauth2/v2/oauth2-api.json generated vendored Normal file
View file

@ -0,0 +1,294 @@
{
"kind": "discovery#restDescription",
"etag": "\"YWOzh2SDasdU84ArJnpYek-OMdg/UI_PjeJG3puXfKEXm-20UHWIhYQ\"",
"discoveryVersion": "v1",
"id": "oauth2:v2",
"name": "oauth2",
"version": "v2",
"revision": "20170807",
"title": "Google OAuth2 API",
"description": "Obtains end-user authorization grants for use with other Google APIs.",
"ownerDomain": "google.com",
"ownerName": "Google",
"icons": {
"x16": "https://www.gstatic.com/images/branding/product/1x/googleg_16dp.png",
"x32": "https://www.gstatic.com/images/branding/product/1x/googleg_32dp.png"
},
"documentationLink": "https://developers.google.com/accounts/docs/OAuth2",
"protocol": "rest",
"baseUrl": "https://www.googleapis.com/",
"basePath": "/",
"rootUrl": "https://www.googleapis.com/",
"servicePath": "",
"batchPath": "batch/oauth2/v2",
"parameters": {
"alt": {
"type": "string",
"description": "Data format for the response.",
"default": "json",
"enum": [
"json"
],
"enumDescriptions": [
"Responses with Content-Type of application/json"
],
"location": "query"
},
"fields": {
"type": "string",
"description": "Selector specifying which fields to include in a partial response.",
"location": "query"
},
"key": {
"type": "string",
"description": "API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.",
"location": "query"
},
"oauth_token": {
"type": "string",
"description": "OAuth 2.0 token for the current user.",
"location": "query"
},
"prettyPrint": {
"type": "boolean",
"description": "Returns response with indentations and line breaks.",
"default": "true",
"location": "query"
},
"quotaUser": {
"type": "string",
"description": "Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters. Overrides userIp if both are provided.",
"location": "query"
},
"userIp": {
"type": "string",
"description": "IP address of the site where the request originates. Use this if you want to enforce per-user limits.",
"location": "query"
}
},
"auth": {
"oauth2": {
"scopes": {
"https://www.googleapis.com/auth/plus.login": {
"description": "Know the list of people in your circles, your age range, and language"
},
"https://www.googleapis.com/auth/plus.me": {
"description": "Know who you are on Google"
},
"https://www.googleapis.com/auth/userinfo.email": {
"description": "View your email address"
},
"https://www.googleapis.com/auth/userinfo.profile": {
"description": "View your basic profile info"
}
}
}
},
"schemas": {
"Jwk": {
"id": "Jwk",
"type": "object",
"properties": {
"keys": {
"type": "array",
"items": {
"type": "object",
"properties": {
"alg": {
"type": "string",
"default": "RS256"
},
"e": {
"type": "string"
},
"kid": {
"type": "string"
},
"kty": {
"type": "string",
"default": "RSA"
},
"n": {
"type": "string"
},
"use": {
"type": "string",
"default": "sig"
}
}
}
}
}
},
"Tokeninfo": {
"id": "Tokeninfo",
"type": "object",
"properties": {
"access_type": {
"type": "string",
"description": "The access type granted with this token. It can be offline or online."
},
"audience": {
"type": "string",
"description": "Who is the intended audience for this token. In general the same as issued_to."
},
"email": {
"type": "string",
"description": "The email address of the user. Present only if the email scope is present in the request."
},
"expires_in": {
"type": "integer",
"description": "The expiry time of the token, as number of seconds left until expiry.",
"format": "int32"
},
"issued_to": {
"type": "string",
"description": "To whom was the token issued to. In general the same as audience."
},
"scope": {
"type": "string",
"description": "The space separated list of scopes granted to this token."
},
"token_handle": {
"type": "string",
"description": "The token handle associated with this token."
},
"user_id": {
"type": "string",
"description": "The obfuscated user id."
},
"verified_email": {
"type": "boolean",
"description": "Boolean flag which is true if the email address is verified. Present only if the email scope is present in the request."
}
}
},
"Userinfoplus": {
"id": "Userinfoplus",
"type": "object",
"properties": {
"email": {
"type": "string",
"description": "The user's email address."
},
"family_name": {
"type": "string",
"description": "The user's last name."
},
"gender": {
"type": "string",
"description": "The user's gender."
},
"given_name": {
"type": "string",
"description": "The user's first name."
},
"hd": {
"type": "string",
"description": "The hosted domain e.g. example.com if the user is Google apps user."
},
"id": {
"type": "string",
"description": "The obfuscated ID of the user."
},
"link": {
"type": "string",
"description": "URL of the profile page."
},
"locale": {
"type": "string",
"description": "The user's preferred locale."
},
"name": {
"type": "string",
"description": "The user's full name."
},
"picture": {
"type": "string",
"description": "URL of the user's picture image."
},
"verified_email": {
"type": "boolean",
"description": "Boolean flag which is true if the email address is verified. Always verified because we only return the user's primary email address.",
"default": "true"
}
}
}
},
"methods": {
"getCertForOpenIdConnect": {
"id": "oauth2.getCertForOpenIdConnect",
"path": "oauth2/v2/certs",
"httpMethod": "GET",
"response": {
"$ref": "Jwk"
}
},
"tokeninfo": {
"id": "oauth2.tokeninfo",
"path": "oauth2/v2/tokeninfo",
"httpMethod": "POST",
"parameters": {
"access_token": {
"type": "string",
"location": "query"
},
"id_token": {
"type": "string",
"location": "query"
},
"token_handle": {
"type": "string",
"location": "query"
}
},
"response": {
"$ref": "Tokeninfo"
}
}
},
"resources": {
"userinfo": {
"methods": {
"get": {
"id": "oauth2.userinfo.get",
"path": "oauth2/v2/userinfo",
"httpMethod": "GET",
"response": {
"$ref": "Userinfoplus"
},
"scopes": [
"https://www.googleapis.com/auth/plus.login",
"https://www.googleapis.com/auth/plus.me",
"https://www.googleapis.com/auth/userinfo.email",
"https://www.googleapis.com/auth/userinfo.profile"
]
}
},
"resources": {
"v2": {
"resources": {
"me": {
"methods": {
"get": {
"id": "oauth2.userinfo.v2.me.get",
"path": "userinfo/v2/me",
"httpMethod": "GET",
"response": {
"$ref": "Userinfoplus"
},
"scopes": [
"https://www.googleapis.com/auth/plus.login",
"https://www.googleapis.com/auth/plus.me",
"https://www.googleapis.com/auth/userinfo.email",
"https://www.googleapis.com/auth/userinfo.profile"
]
}
}
}
}
}
}
}
}
}

809
vendor/google.golang.org/api/oauth2/v2/oauth2-gen.go generated vendored Normal file
View file

@ -0,0 +1,809 @@
// Package oauth2 provides access to the Google OAuth2 API.
//
// See https://developers.google.com/accounts/docs/OAuth2
//
// Usage example:
//
// import "google.golang.org/api/oauth2/v2"
// ...
// oauth2Service, err := oauth2.New(oauthHttpClient)
package oauth2 // import "google.golang.org/api/oauth2/v2"
import (
"bytes"
"encoding/json"
"errors"
"fmt"
context "golang.org/x/net/context"
ctxhttp "golang.org/x/net/context/ctxhttp"
gensupport "google.golang.org/api/gensupport"
googleapi "google.golang.org/api/googleapi"
"io"
"net/http"
"net/url"
"strconv"
"strings"
)
// Always reference these packages, just in case the auto-generated code
// below doesn't.
var _ = bytes.NewBuffer
var _ = strconv.Itoa
var _ = fmt.Sprintf
var _ = json.NewDecoder
var _ = io.Copy
var _ = url.Parse
var _ = gensupport.MarshalJSON
var _ = googleapi.Version
var _ = errors.New
var _ = strings.Replace
var _ = context.Canceled
var _ = ctxhttp.Do
const apiId = "oauth2:v2"
const apiName = "oauth2"
const apiVersion = "v2"
const basePath = "https://www.googleapis.com/"
// OAuth2 scopes used by this API.
const (
// Know the list of people in your circles, your age range, and language
PlusLoginScope = "https://www.googleapis.com/auth/plus.login"
// Know who you are on Google
PlusMeScope = "https://www.googleapis.com/auth/plus.me"
// View your email address
UserinfoEmailScope = "https://www.googleapis.com/auth/userinfo.email"
// View your basic profile info
UserinfoProfileScope = "https://www.googleapis.com/auth/userinfo.profile"
)
func New(client *http.Client) (*Service, error) {
if client == nil {
return nil, errors.New("client is nil")
}
s := &Service{client: client, BasePath: basePath}
s.Userinfo = NewUserinfoService(s)
return s, nil
}
type Service struct {
client *http.Client
BasePath string // API endpoint base URL
UserAgent string // optional additional User-Agent fragment
Userinfo *UserinfoService
}
func (s *Service) userAgent() string {
if s.UserAgent == "" {
return googleapi.UserAgent
}
return googleapi.UserAgent + " " + s.UserAgent
}
func NewUserinfoService(s *Service) *UserinfoService {
rs := &UserinfoService{s: s}
rs.V2 = NewUserinfoV2Service(s)
return rs
}
type UserinfoService struct {
s *Service
V2 *UserinfoV2Service
}
func NewUserinfoV2Service(s *Service) *UserinfoV2Service {
rs := &UserinfoV2Service{s: s}
rs.Me = NewUserinfoV2MeService(s)
return rs
}
type UserinfoV2Service struct {
s *Service
Me *UserinfoV2MeService
}
func NewUserinfoV2MeService(s *Service) *UserinfoV2MeService {
rs := &UserinfoV2MeService{s: s}
return rs
}
type UserinfoV2MeService struct {
s *Service
}
type Jwk struct {
Keys []*JwkKeys `json:"keys,omitempty"`
// ServerResponse contains the HTTP response code and headers from the
// server.
googleapi.ServerResponse `json:"-"`
// ForceSendFields is a list of field names (e.g. "Keys") to
// unconditionally include in API requests. By default, fields with
// empty values are omitted from API requests. However, any non-pointer,
// non-interface field appearing in ForceSendFields will be sent to the
// server regardless of whether the field is empty or not. This may be
// used to include empty fields in Patch requests.
ForceSendFields []string `json:"-"`
// NullFields is a list of field names (e.g. "Keys") to include in API
// requests with the JSON null value. By default, fields with empty
// values are omitted from API requests. However, any field with an
// empty value appearing in NullFields will be sent to the server as
// null. It is an error if a field in this list has a non-empty value.
// This may be used to include null fields in Patch requests.
NullFields []string `json:"-"`
}
func (s *Jwk) MarshalJSON() ([]byte, error) {
type noMethod Jwk
raw := noMethod(*s)
return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}
type JwkKeys struct {
Alg string `json:"alg,omitempty"`
E string `json:"e,omitempty"`
Kid string `json:"kid,omitempty"`
Kty string `json:"kty,omitempty"`
N string `json:"n,omitempty"`
Use string `json:"use,omitempty"`
// ForceSendFields is a list of field names (e.g. "Alg") to
// unconditionally include in API requests. By default, fields with
// empty values are omitted from API requests. However, any non-pointer,
// non-interface field appearing in ForceSendFields will be sent to the
// server regardless of whether the field is empty or not. This may be
// used to include empty fields in Patch requests.
ForceSendFields []string `json:"-"`
// NullFields is a list of field names (e.g. "Alg") to include in API
// requests with the JSON null value. By default, fields with empty
// values are omitted from API requests. However, any field with an
// empty value appearing in NullFields will be sent to the server as
// null. It is an error if a field in this list has a non-empty value.
// This may be used to include null fields in Patch requests.
NullFields []string `json:"-"`
}
func (s *JwkKeys) MarshalJSON() ([]byte, error) {
type noMethod JwkKeys
raw := noMethod(*s)
return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}
type Tokeninfo struct {
// AccessType: The access type granted with this token. It can be
// offline or online.
AccessType string `json:"access_type,omitempty"`
// Audience: Who is the intended audience for this token. In general the
// same as issued_to.
Audience string `json:"audience,omitempty"`
// Email: The email address of the user. Present only if the email scope
// is present in the request.
Email string `json:"email,omitempty"`
// ExpiresIn: The expiry time of the token, as number of seconds left
// until expiry.
ExpiresIn int64 `json:"expires_in,omitempty"`
// IssuedTo: To whom was the token issued to. In general the same as
// audience.
IssuedTo string `json:"issued_to,omitempty"`
// Scope: The space separated list of scopes granted to this token.
Scope string `json:"scope,omitempty"`
// TokenHandle: The token handle associated with this token.
TokenHandle string `json:"token_handle,omitempty"`
// UserId: The obfuscated user id.
UserId string `json:"user_id,omitempty"`
// VerifiedEmail: Boolean flag which is true if the email address is
// verified. Present only if the email scope is present in the request.
VerifiedEmail bool `json:"verified_email,omitempty"`
// ServerResponse contains the HTTP response code and headers from the
// server.
googleapi.ServerResponse `json:"-"`
// ForceSendFields is a list of field names (e.g. "AccessType") to
// unconditionally include in API requests. By default, fields with
// empty values are omitted from API requests. However, any non-pointer,
// non-interface field appearing in ForceSendFields will be sent to the
// server regardless of whether the field is empty or not. This may be
// used to include empty fields in Patch requests.
ForceSendFields []string `json:"-"`
// NullFields is a list of field names (e.g. "AccessType") to include in
// API requests with the JSON null value. By default, fields with empty
// values are omitted from API requests. However, any field with an
// empty value appearing in NullFields will be sent to the server as
// null. It is an error if a field in this list has a non-empty value.
// This may be used to include null fields in Patch requests.
NullFields []string `json:"-"`
}
func (s *Tokeninfo) MarshalJSON() ([]byte, error) {
type noMethod Tokeninfo
raw := noMethod(*s)
return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}
type Userinfoplus struct {
// Email: The user's email address.
Email string `json:"email,omitempty"`
// FamilyName: The user's last name.
FamilyName string `json:"family_name,omitempty"`
// Gender: The user's gender.
Gender string `json:"gender,omitempty"`
// GivenName: The user's first name.
GivenName string `json:"given_name,omitempty"`
// Hd: The hosted domain e.g. example.com if the user is Google apps
// user.
Hd string `json:"hd,omitempty"`
// Id: The obfuscated ID of the user.
Id string `json:"id,omitempty"`
// Link: URL of the profile page.
Link string `json:"link,omitempty"`
// Locale: The user's preferred locale.
Locale string `json:"locale,omitempty"`
// Name: The user's full name.
Name string `json:"name,omitempty"`
// Picture: URL of the user's picture image.
Picture string `json:"picture,omitempty"`
// VerifiedEmail: Boolean flag which is true if the email address is
// verified. Always verified because we only return the user's primary
// email address.
//
// Default: true
VerifiedEmail *bool `json:"verified_email,omitempty"`
// ServerResponse contains the HTTP response code and headers from the
// server.
googleapi.ServerResponse `json:"-"`
// ForceSendFields is a list of field names (e.g. "Email") to
// unconditionally include in API requests. By default, fields with
// empty values are omitted from API requests. However, any non-pointer,
// non-interface field appearing in ForceSendFields will be sent to the
// server regardless of whether the field is empty or not. This may be
// used to include empty fields in Patch requests.
ForceSendFields []string `json:"-"`
// NullFields is a list of field names (e.g. "Email") to include in API
// requests with the JSON null value. By default, fields with empty
// values are omitted from API requests. However, any field with an
// empty value appearing in NullFields will be sent to the server as
// null. It is an error if a field in this list has a non-empty value.
// This may be used to include null fields in Patch requests.
NullFields []string `json:"-"`
}
func (s *Userinfoplus) MarshalJSON() ([]byte, error) {
type noMethod Userinfoplus
raw := noMethod(*s)
return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}
// method id "oauth2.getCertForOpenIdConnect":
type GetCertForOpenIdConnectCall struct {
s *Service
urlParams_ gensupport.URLParams
ifNoneMatch_ string
ctx_ context.Context
header_ http.Header
}
// GetCertForOpenIdConnect:
func (s *Service) GetCertForOpenIdConnect() *GetCertForOpenIdConnectCall {
c := &GetCertForOpenIdConnectCall{s: s, urlParams_: make(gensupport.URLParams)}
return c
}
// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *GetCertForOpenIdConnectCall) Fields(s ...googleapi.Field) *GetCertForOpenIdConnectCall {
c.urlParams_.Set("fields", googleapi.CombineFields(s))
return c
}
// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *GetCertForOpenIdConnectCall) IfNoneMatch(entityTag string) *GetCertForOpenIdConnectCall {
c.ifNoneMatch_ = entityTag
return c
}
// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *GetCertForOpenIdConnectCall) Context(ctx context.Context) *GetCertForOpenIdConnectCall {
c.ctx_ = ctx
return c
}
// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *GetCertForOpenIdConnectCall) Header() http.Header {
if c.header_ == nil {
c.header_ = make(http.Header)
}
return c.header_
}
func (c *GetCertForOpenIdConnectCall) doRequest(alt string) (*http.Response, error) {
reqHeaders := make(http.Header)
for k, v := range c.header_ {
reqHeaders[k] = v
}
reqHeaders.Set("User-Agent", c.s.userAgent())
if c.ifNoneMatch_ != "" {
reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
}
var body io.Reader = nil
c.urlParams_.Set("alt", alt)
urls := googleapi.ResolveRelative(c.s.BasePath, "oauth2/v2/certs")
urls += "?" + c.urlParams_.Encode()
req, _ := http.NewRequest("GET", urls, body)
req.Header = reqHeaders
return gensupport.SendRequest(c.ctx_, c.s.client, req)
}
// Do executes the "oauth2.getCertForOpenIdConnect" call.
// Exactly one of *Jwk or error will be non-nil. Any non-2xx status code
// is an error. Response headers are in either
// *Jwk.ServerResponse.Header or (if a response was returned at all) in
// error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check
// whether the returned error was because http.StatusNotModified was
// returned.
func (c *GetCertForOpenIdConnectCall) Do(opts ...googleapi.CallOption) (*Jwk, error) {
gensupport.SetOptions(c.urlParams_, opts...)
res, err := c.doRequest("json")
if res != nil && res.StatusCode == http.StatusNotModified {
if res.Body != nil {
res.Body.Close()
}
return nil, &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
}
}
if err != nil {
return nil, err
}
defer googleapi.CloseBody(res)
if err := googleapi.CheckResponse(res); err != nil {
return nil, err
}
ret := &Jwk{
ServerResponse: googleapi.ServerResponse{
Header: res.Header,
HTTPStatusCode: res.StatusCode,
},
}
target := &ret
if err := json.NewDecoder(res.Body).Decode(target); err != nil {
return nil, err
}
return ret, nil
// {
// "httpMethod": "GET",
// "id": "oauth2.getCertForOpenIdConnect",
// "path": "oauth2/v2/certs",
// "response": {
// "$ref": "Jwk"
// }
// }
}
// method id "oauth2.tokeninfo":
type TokeninfoCall struct {
s *Service
urlParams_ gensupport.URLParams
ctx_ context.Context
header_ http.Header
}
// Tokeninfo:
func (s *Service) Tokeninfo() *TokeninfoCall {
c := &TokeninfoCall{s: s, urlParams_: make(gensupport.URLParams)}
return c
}
// AccessToken sets the optional parameter "access_token":
func (c *TokeninfoCall) AccessToken(accessToken string) *TokeninfoCall {
c.urlParams_.Set("access_token", accessToken)
return c
}
// IdToken sets the optional parameter "id_token":
func (c *TokeninfoCall) IdToken(idToken string) *TokeninfoCall {
c.urlParams_.Set("id_token", idToken)
return c
}
// TokenHandle sets the optional parameter "token_handle":
func (c *TokeninfoCall) TokenHandle(tokenHandle string) *TokeninfoCall {
c.urlParams_.Set("token_handle", tokenHandle)
return c
}
// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *TokeninfoCall) Fields(s ...googleapi.Field) *TokeninfoCall {
c.urlParams_.Set("fields", googleapi.CombineFields(s))
return c
}
// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *TokeninfoCall) Context(ctx context.Context) *TokeninfoCall {
c.ctx_ = ctx
return c
}
// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *TokeninfoCall) Header() http.Header {
if c.header_ == nil {
c.header_ = make(http.Header)
}
return c.header_
}
func (c *TokeninfoCall) doRequest(alt string) (*http.Response, error) {
reqHeaders := make(http.Header)
for k, v := range c.header_ {
reqHeaders[k] = v
}
reqHeaders.Set("User-Agent", c.s.userAgent())
var body io.Reader = nil
c.urlParams_.Set("alt", alt)
urls := googleapi.ResolveRelative(c.s.BasePath, "oauth2/v2/tokeninfo")
urls += "?" + c.urlParams_.Encode()
req, _ := http.NewRequest("POST", urls, body)
req.Header = reqHeaders
return gensupport.SendRequest(c.ctx_, c.s.client, req)
}
// Do executes the "oauth2.tokeninfo" call.
// Exactly one of *Tokeninfo or error will be non-nil. Any non-2xx
// status code is an error. Response headers are in either
// *Tokeninfo.ServerResponse.Header or (if a response was returned at
// all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified
// to check whether the returned error was because
// http.StatusNotModified was returned.
func (c *TokeninfoCall) Do(opts ...googleapi.CallOption) (*Tokeninfo, error) {
gensupport.SetOptions(c.urlParams_, opts...)
res, err := c.doRequest("json")
if res != nil && res.StatusCode == http.StatusNotModified {
if res.Body != nil {
res.Body.Close()
}
return nil, &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
}
}
if err != nil {
return nil, err
}
defer googleapi.CloseBody(res)
if err := googleapi.CheckResponse(res); err != nil {
return nil, err
}
ret := &Tokeninfo{
ServerResponse: googleapi.ServerResponse{
Header: res.Header,
HTTPStatusCode: res.StatusCode,
},
}
target := &ret
if err := json.NewDecoder(res.Body).Decode(target); err != nil {
return nil, err
}
return ret, nil
// {
// "httpMethod": "POST",
// "id": "oauth2.tokeninfo",
// "parameters": {
// "access_token": {
// "location": "query",
// "type": "string"
// },
// "id_token": {
// "location": "query",
// "type": "string"
// },
// "token_handle": {
// "location": "query",
// "type": "string"
// }
// },
// "path": "oauth2/v2/tokeninfo",
// "response": {
// "$ref": "Tokeninfo"
// }
// }
}
// method id "oauth2.userinfo.get":
type UserinfoGetCall struct {
s *Service
urlParams_ gensupport.URLParams
ifNoneMatch_ string
ctx_ context.Context
header_ http.Header
}
// Get:
func (r *UserinfoService) Get() *UserinfoGetCall {
c := &UserinfoGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
return c
}
// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *UserinfoGetCall) Fields(s ...googleapi.Field) *UserinfoGetCall {
c.urlParams_.Set("fields", googleapi.CombineFields(s))
return c
}
// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *UserinfoGetCall) IfNoneMatch(entityTag string) *UserinfoGetCall {
c.ifNoneMatch_ = entityTag
return c
}
// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *UserinfoGetCall) Context(ctx context.Context) *UserinfoGetCall {
c.ctx_ = ctx
return c
}
// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *UserinfoGetCall) Header() http.Header {
if c.header_ == nil {
c.header_ = make(http.Header)
}
return c.header_
}
func (c *UserinfoGetCall) doRequest(alt string) (*http.Response, error) {
reqHeaders := make(http.Header)
for k, v := range c.header_ {
reqHeaders[k] = v
}
reqHeaders.Set("User-Agent", c.s.userAgent())
if c.ifNoneMatch_ != "" {
reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
}
var body io.Reader = nil
c.urlParams_.Set("alt", alt)
urls := googleapi.ResolveRelative(c.s.BasePath, "oauth2/v2/userinfo")
urls += "?" + c.urlParams_.Encode()
req, _ := http.NewRequest("GET", urls, body)
req.Header = reqHeaders
return gensupport.SendRequest(c.ctx_, c.s.client, req)
}
// Do executes the "oauth2.userinfo.get" call.
// Exactly one of *Userinfoplus or error will be non-nil. Any non-2xx
// status code is an error. Response headers are in either
// *Userinfoplus.ServerResponse.Header or (if a response was returned at
// all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified
// to check whether the returned error was because
// http.StatusNotModified was returned.
func (c *UserinfoGetCall) Do(opts ...googleapi.CallOption) (*Userinfoplus, error) {
gensupport.SetOptions(c.urlParams_, opts...)
res, err := c.doRequest("json")
if res != nil && res.StatusCode == http.StatusNotModified {
if res.Body != nil {
res.Body.Close()
}
return nil, &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
}
}
if err != nil {
return nil, err
}
defer googleapi.CloseBody(res)
if err := googleapi.CheckResponse(res); err != nil {
return nil, err
}
ret := &Userinfoplus{
ServerResponse: googleapi.ServerResponse{
Header: res.Header,
HTTPStatusCode: res.StatusCode,
},
}
target := &ret
if err := json.NewDecoder(res.Body).Decode(target); err != nil {
return nil, err
}
return ret, nil
// {
// "httpMethod": "GET",
// "id": "oauth2.userinfo.get",
// "path": "oauth2/v2/userinfo",
// "response": {
// "$ref": "Userinfoplus"
// },
// "scopes": [
// "https://www.googleapis.com/auth/plus.login",
// "https://www.googleapis.com/auth/plus.me",
// "https://www.googleapis.com/auth/userinfo.email",
// "https://www.googleapis.com/auth/userinfo.profile"
// ]
// }
}
// method id "oauth2.userinfo.v2.me.get":
type UserinfoV2MeGetCall struct {
s *Service
urlParams_ gensupport.URLParams
ifNoneMatch_ string
ctx_ context.Context
header_ http.Header
}
// Get:
func (r *UserinfoV2MeService) Get() *UserinfoV2MeGetCall {
c := &UserinfoV2MeGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
return c
}
// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *UserinfoV2MeGetCall) Fields(s ...googleapi.Field) *UserinfoV2MeGetCall {
c.urlParams_.Set("fields", googleapi.CombineFields(s))
return c
}
// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *UserinfoV2MeGetCall) IfNoneMatch(entityTag string) *UserinfoV2MeGetCall {
c.ifNoneMatch_ = entityTag
return c
}
// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *UserinfoV2MeGetCall) Context(ctx context.Context) *UserinfoV2MeGetCall {
c.ctx_ = ctx
return c
}
// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *UserinfoV2MeGetCall) Header() http.Header {
if c.header_ == nil {
c.header_ = make(http.Header)
}
return c.header_
}
func (c *UserinfoV2MeGetCall) doRequest(alt string) (*http.Response, error) {
reqHeaders := make(http.Header)
for k, v := range c.header_ {
reqHeaders[k] = v
}
reqHeaders.Set("User-Agent", c.s.userAgent())
if c.ifNoneMatch_ != "" {
reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
}
var body io.Reader = nil
c.urlParams_.Set("alt", alt)
urls := googleapi.ResolveRelative(c.s.BasePath, "userinfo/v2/me")
urls += "?" + c.urlParams_.Encode()
req, _ := http.NewRequest("GET", urls, body)
req.Header = reqHeaders
return gensupport.SendRequest(c.ctx_, c.s.client, req)
}
// Do executes the "oauth2.userinfo.v2.me.get" call.
// Exactly one of *Userinfoplus or error will be non-nil. Any non-2xx
// status code is an error. Response headers are in either
// *Userinfoplus.ServerResponse.Header or (if a response was returned at
// all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified
// to check whether the returned error was because
// http.StatusNotModified was returned.
func (c *UserinfoV2MeGetCall) Do(opts ...googleapi.CallOption) (*Userinfoplus, error) {
gensupport.SetOptions(c.urlParams_, opts...)
res, err := c.doRequest("json")
if res != nil && res.StatusCode == http.StatusNotModified {
if res.Body != nil {
res.Body.Close()
}
return nil, &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
}
}
if err != nil {
return nil, err
}
defer googleapi.CloseBody(res)
if err := googleapi.CheckResponse(res); err != nil {
return nil, err
}
ret := &Userinfoplus{
ServerResponse: googleapi.ServerResponse{
Header: res.Header,
HTTPStatusCode: res.StatusCode,
},
}
target := &ret
if err := json.NewDecoder(res.Body).Decode(target); err != nil {
return nil, err
}
return ret, nil
// {
// "httpMethod": "GET",
// "id": "oauth2.userinfo.v2.me.get",
// "path": "userinfo/v2/me",
// "response": {
// "$ref": "Userinfoplus"
// },
// "scopes": [
// "https://www.googleapis.com/auth/plus.login",
// "https://www.googleapis.com/auth/plus.me",
// "https://www.googleapis.com/auth/userinfo.email",
// "https://www.googleapis.com/auth/userinfo.profile"
// ]
// }
}

10
vendor/gopkg.in/square/go-jose.v2/BUG-BOUNTY.md generated vendored Normal file
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@ -0,0 +1,10 @@
Serious about security
======================
Square recognizes the important contributions the security research community
can make. We therefore encourage reporting security issues with the code
contained in this repository.
If you believe you have discovered a security vulnerability, please follow the
guidelines at <https://hackerone.com/square-open-source>.

14
vendor/gopkg.in/square/go-jose.v2/CONTRIBUTING.md generated vendored Normal file
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# Contributing
If you would like to contribute code to go-jose you can do so through GitHub by
forking the repository and sending a pull request.
When submitting code, please make every effort to follow existing conventions
and style in order to keep the code as readable as possible. Please also make
sure all tests pass by running `go test`, and format your code with `go fmt`.
We also recommend using `golint` and `errcheck`.
Before your code can be accepted into the project you must also sign the
[Individual Contributor License Agreement][1].
[1]: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1

202
vendor/gopkg.in/square/go-jose.v2/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
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# Go JOSE
[![godoc](http://img.shields.io/badge/godoc-version_1-blue.svg?style=flat)](https://godoc.org/gopkg.in/square/go-jose.v1)
[![godoc](http://img.shields.io/badge/godoc-version_2-blue.svg?style=flat)](https://godoc.org/gopkg.in/square/go-jose.v2)
[![license](http://img.shields.io/badge/license-apache_2.0-blue.svg?style=flat)](https://raw.githubusercontent.com/square/go-jose/master/LICENSE)
[![build](https://travis-ci.org/square/go-jose.svg?branch=master)](https://travis-ci.org/square/go-jose)
[![coverage](https://coveralls.io/repos/github/square/go-jose/badge.svg?branch=master)](https://coveralls.io/r/square/go-jose)
Package jose aims to provide an implementation of the Javascript Object Signing
and Encryption set of standards. This includes support for JSON Web Encryption,
JSON Web Signature, and JSON Web Token standards.
**Disclaimer**: This library contains encryption software that is subject to
the U.S. Export Administration Regulations. You may not export, re-export,
transfer or download this code or any part of it in violation of any United
States law, directive or regulation. In particular this software may not be
exported or re-exported in any form or on any media to Iran, North Sudan,
Syria, Cuba, or North Korea, or to denied persons or entities mentioned on any
US maintained blocked list.
## Overview
The implementation follows the
[JSON Web Encryption](http://dx.doi.org/10.17487/RFC7516) (RFC 7516),
[JSON Web Signature](http://dx.doi.org/10.17487/RFC7515) (RFC 7515), and
[JSON Web Token](http://dx.doi.org/10.17487/RFC7519) (RFC 7519).
Tables of supported algorithms are shown below. The library supports both
the compact and full serialization formats, and has optional support for
multiple recipients. It also comes with a small command-line utility
([`jose-util`](https://github.com/square/go-jose/tree/v2/jose-util))
for dealing with JOSE messages in a shell.
**Note**: We use a forked version of the `encoding/json` package from the Go
standard library which uses case-sensitive matching for member names (instead
of [case-insensitive matching](https://www.ietf.org/mail-archive/web/json/current/msg03763.html)).
This is to avoid differences in interpretation of messages between go-jose and
libraries in other languages.
### Versions
We use [gopkg.in](https://gopkg.in) for versioning.
[Version 1](https://gopkg.in/square/go-jose.v1) is the old stable version:
import "gopkg.in/square/go-jose.v1"
[Version 2](https://gopkg.in/square/go-jose.v2) is for new development:
import "gopkg.in/square/go-jose.v2"
The interface for [go-jose.v1](https://gopkg.in/square/go-jose.v1) will remain
backwards compatible. No new feature development will take place on the `v1` branch,
however bug fixes and security fixes will be backported.
The interface for [go-jose.v2](https://gopkg.in/square/go-jose.v2) is mostly
stable, but we suggest pinning to a particular revision for now as we still reserve
the right to make changes. New feature development happens on this branch.
New in [go-jose.v2](https://gopkg.in/square/go-jose.v2) is a
[jwt](https://godoc.org/gopkg.in/square/go-jose.v2/jwt) sub-package
contributed by [@shaxbee](https://github.com/shaxbee).
### Supported algorithms
See below for a table of supported algorithms. Algorithm identifiers match
the names in the [JSON Web Algorithms](http://dx.doi.org/10.17487/RFC7518)
standard where possible. The Godoc reference has a list of constants.
Key encryption | Algorithm identifier(s)
:------------------------- | :------------------------------
RSA-PKCS#1v1.5 | RSA1_5
RSA-OAEP | RSA-OAEP, RSA-OAEP-256
AES key wrap | A128KW, A192KW, A256KW
AES-GCM key wrap | A128GCMKW, A192GCMKW, A256GCMKW
ECDH-ES + AES key wrap | ECDH-ES+A128KW, ECDH-ES+A192KW, ECDH-ES+A256KW
ECDH-ES (direct) | ECDH-ES<sup>1</sup>
Direct encryption | dir<sup>1</sup>
<sup>1. Not supported in multi-recipient mode</sup>
Signing / MAC | Algorithm identifier(s)
:------------------------- | :------------------------------
RSASSA-PKCS#1v1.5 | RS256, RS384, RS512
RSASSA-PSS | PS256, PS384, PS512
HMAC | HS256, HS384, HS512
ECDSA | ES256, ES384, ES512
Content encryption | Algorithm identifier(s)
:------------------------- | :------------------------------
AES-CBC+HMAC | A128CBC-HS256, A192CBC-HS384, A256CBC-HS512
AES-GCM | A128GCM, A192GCM, A256GCM
Compression | Algorithm identifiers(s)
:------------------------- | -------------------------------
DEFLATE (RFC 1951) | DEF
### Supported key types
See below for a table of supported key types. These are understood by the
library, and can be passed to corresponding functions such as `NewEncrypter` or
`NewSigner`. Each of these keys can also be wrapped in a JWK if desired, which
allows attaching a key id.
Algorithm(s) | Corresponding types
:------------------------- | -------------------------------
RSA | *[rsa.PublicKey](http://golang.org/pkg/crypto/rsa/#PublicKey), *[rsa.PrivateKey](http://golang.org/pkg/crypto/rsa/#PrivateKey)
ECDH, ECDSA | *[ecdsa.PublicKey](http://golang.org/pkg/crypto/ecdsa/#PublicKey), *[ecdsa.PrivateKey](http://golang.org/pkg/crypto/ecdsa/#PrivateKey)
AES, HMAC | []byte
## Examples
[![godoc](http://img.shields.io/badge/godoc-version_1-blue.svg?style=flat)](https://godoc.org/gopkg.in/square/go-jose.v1)
[![godoc](http://img.shields.io/badge/godoc-version_2-blue.svg?style=flat)](https://godoc.org/gopkg.in/square/go-jose.v2)
Examples can be found in the Godoc
reference for this package. The
[`jose-util`](https://github.com/square/go-jose/tree/v2/jose-util)
subdirectory also contains a small command-line utility which might be useful
as an example.

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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto"
"crypto/aes"
"crypto/ecdsa"
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/sha256"
"errors"
"fmt"
"math/big"
"golang.org/x/crypto/ed25519"
"gopkg.in/square/go-jose.v2/cipher"
"gopkg.in/square/go-jose.v2/json"
)
// A generic RSA-based encrypter/verifier
type rsaEncrypterVerifier struct {
publicKey *rsa.PublicKey
}
// A generic RSA-based decrypter/signer
type rsaDecrypterSigner struct {
privateKey *rsa.PrivateKey
}
// A generic EC-based encrypter/verifier
type ecEncrypterVerifier struct {
publicKey *ecdsa.PublicKey
}
type edEncrypterVerifier struct {
publicKey ed25519.PublicKey
}
// A key generator for ECDH-ES
type ecKeyGenerator struct {
size int
algID string
publicKey *ecdsa.PublicKey
}
// A generic EC-based decrypter/signer
type ecDecrypterSigner struct {
privateKey *ecdsa.PrivateKey
}
type edDecrypterSigner struct {
privateKey ed25519.PrivateKey
}
// newRSARecipient creates recipientKeyInfo based on the given key.
func newRSARecipient(keyAlg KeyAlgorithm, publicKey *rsa.PublicKey) (recipientKeyInfo, error) {
// Verify that key management algorithm is supported by this encrypter
switch keyAlg {
case RSA1_5, RSA_OAEP, RSA_OAEP_256:
default:
return recipientKeyInfo{}, ErrUnsupportedAlgorithm
}
if publicKey == nil {
return recipientKeyInfo{}, errors.New("invalid public key")
}
return recipientKeyInfo{
keyAlg: keyAlg,
keyEncrypter: &rsaEncrypterVerifier{
publicKey: publicKey,
},
}, nil
}
// newRSASigner creates a recipientSigInfo based on the given key.
func newRSASigner(sigAlg SignatureAlgorithm, privateKey *rsa.PrivateKey) (recipientSigInfo, error) {
// Verify that key management algorithm is supported by this encrypter
switch sigAlg {
case RS256, RS384, RS512, PS256, PS384, PS512:
default:
return recipientSigInfo{}, ErrUnsupportedAlgorithm
}
if privateKey == nil {
return recipientSigInfo{}, errors.New("invalid private key")
}
return recipientSigInfo{
sigAlg: sigAlg,
publicKey: &JSONWebKey{
Key: &privateKey.PublicKey,
},
signer: &rsaDecrypterSigner{
privateKey: privateKey,
},
}, nil
}
func newEd25519Signer(sigAlg SignatureAlgorithm, privateKey ed25519.PrivateKey) (recipientSigInfo, error) {
if sigAlg != EdDSA {
return recipientSigInfo{}, ErrUnsupportedAlgorithm
}
if privateKey == nil {
return recipientSigInfo{}, errors.New("invalid private key")
}
return recipientSigInfo{
sigAlg: sigAlg,
publicKey: &JSONWebKey{
Key: privateKey.Public(),
},
signer: &edDecrypterSigner{
privateKey: privateKey,
},
}, nil
}
// newECDHRecipient creates recipientKeyInfo based on the given key.
func newECDHRecipient(keyAlg KeyAlgorithm, publicKey *ecdsa.PublicKey) (recipientKeyInfo, error) {
// Verify that key management algorithm is supported by this encrypter
switch keyAlg {
case ECDH_ES, ECDH_ES_A128KW, ECDH_ES_A192KW, ECDH_ES_A256KW:
default:
return recipientKeyInfo{}, ErrUnsupportedAlgorithm
}
if publicKey == nil || !publicKey.Curve.IsOnCurve(publicKey.X, publicKey.Y) {
return recipientKeyInfo{}, errors.New("invalid public key")
}
return recipientKeyInfo{
keyAlg: keyAlg,
keyEncrypter: &ecEncrypterVerifier{
publicKey: publicKey,
},
}, nil
}
// newECDSASigner creates a recipientSigInfo based on the given key.
func newECDSASigner(sigAlg SignatureAlgorithm, privateKey *ecdsa.PrivateKey) (recipientSigInfo, error) {
// Verify that key management algorithm is supported by this encrypter
switch sigAlg {
case ES256, ES384, ES512:
default:
return recipientSigInfo{}, ErrUnsupportedAlgorithm
}
if privateKey == nil {
return recipientSigInfo{}, errors.New("invalid private key")
}
return recipientSigInfo{
sigAlg: sigAlg,
publicKey: &JSONWebKey{
Key: &privateKey.PublicKey,
},
signer: &ecDecrypterSigner{
privateKey: privateKey,
},
}, nil
}
// Encrypt the given payload and update the object.
func (ctx rsaEncrypterVerifier) encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) {
encryptedKey, err := ctx.encrypt(cek, alg)
if err != nil {
return recipientInfo{}, err
}
return recipientInfo{
encryptedKey: encryptedKey,
header: &rawHeader{},
}, nil
}
// Encrypt the given payload. Based on the key encryption algorithm,
// this will either use RSA-PKCS1v1.5 or RSA-OAEP (with SHA-1 or SHA-256).
func (ctx rsaEncrypterVerifier) encrypt(cek []byte, alg KeyAlgorithm) ([]byte, error) {
switch alg {
case RSA1_5:
return rsa.EncryptPKCS1v15(randReader, ctx.publicKey, cek)
case RSA_OAEP:
return rsa.EncryptOAEP(sha1.New(), randReader, ctx.publicKey, cek, []byte{})
case RSA_OAEP_256:
return rsa.EncryptOAEP(sha256.New(), randReader, ctx.publicKey, cek, []byte{})
}
return nil, ErrUnsupportedAlgorithm
}
// Decrypt the given payload and return the content encryption key.
func (ctx rsaDecrypterSigner) decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) {
return ctx.decrypt(recipient.encryptedKey, headers.getAlgorithm(), generator)
}
// Decrypt the given payload. Based on the key encryption algorithm,
// this will either use RSA-PKCS1v1.5 or RSA-OAEP (with SHA-1 or SHA-256).
func (ctx rsaDecrypterSigner) decrypt(jek []byte, alg KeyAlgorithm, generator keyGenerator) ([]byte, error) {
// Note: The random reader on decrypt operations is only used for blinding,
// so stubbing is meanlingless (hence the direct use of rand.Reader).
switch alg {
case RSA1_5:
defer func() {
// DecryptPKCS1v15SessionKey sometimes panics on an invalid payload
// because of an index out of bounds error, which we want to ignore.
// This has been fixed in Go 1.3.1 (released 2014/08/13), the recover()
// only exists for preventing crashes with unpatched versions.
// See: https://groups.google.com/forum/#!topic/golang-dev/7ihX6Y6kx9k
// See: https://code.google.com/p/go/source/detail?r=58ee390ff31602edb66af41ed10901ec95904d33
_ = recover()
}()
// Perform some input validation.
keyBytes := ctx.privateKey.PublicKey.N.BitLen() / 8
if keyBytes != len(jek) {
// Input size is incorrect, the encrypted payload should always match
// the size of the public modulus (e.g. using a 2048 bit key will
// produce 256 bytes of output). Reject this since it's invalid input.
return nil, ErrCryptoFailure
}
cek, _, err := generator.genKey()
if err != nil {
return nil, ErrCryptoFailure
}
// When decrypting an RSA-PKCS1v1.5 payload, we must take precautions to
// prevent chosen-ciphertext attacks as described in RFC 3218, "Preventing
// the Million Message Attack on Cryptographic Message Syntax". We are
// therefore deliberately ignoring errors here.
_ = rsa.DecryptPKCS1v15SessionKey(rand.Reader, ctx.privateKey, jek, cek)
return cek, nil
case RSA_OAEP:
// Use rand.Reader for RSA blinding
return rsa.DecryptOAEP(sha1.New(), rand.Reader, ctx.privateKey, jek, []byte{})
case RSA_OAEP_256:
// Use rand.Reader for RSA blinding
return rsa.DecryptOAEP(sha256.New(), rand.Reader, ctx.privateKey, jek, []byte{})
}
return nil, ErrUnsupportedAlgorithm
}
// Sign the given payload
func (ctx rsaDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) {
var hash crypto.Hash
switch alg {
case RS256, PS256:
hash = crypto.SHA256
case RS384, PS384:
hash = crypto.SHA384
case RS512, PS512:
hash = crypto.SHA512
default:
return Signature{}, ErrUnsupportedAlgorithm
}
hasher := hash.New()
// According to documentation, Write() on hash never fails
_, _ = hasher.Write(payload)
hashed := hasher.Sum(nil)
var out []byte
var err error
switch alg {
case RS256, RS384, RS512:
out, err = rsa.SignPKCS1v15(randReader, ctx.privateKey, hash, hashed)
case PS256, PS384, PS512:
out, err = rsa.SignPSS(randReader, ctx.privateKey, hash, hashed, &rsa.PSSOptions{
SaltLength: rsa.PSSSaltLengthAuto,
})
}
if err != nil {
return Signature{}, err
}
return Signature{
Signature: out,
protected: &rawHeader{},
}, nil
}
// Verify the given payload
func (ctx rsaEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error {
var hash crypto.Hash
switch alg {
case RS256, PS256:
hash = crypto.SHA256
case RS384, PS384:
hash = crypto.SHA384
case RS512, PS512:
hash = crypto.SHA512
default:
return ErrUnsupportedAlgorithm
}
hasher := hash.New()
// According to documentation, Write() on hash never fails
_, _ = hasher.Write(payload)
hashed := hasher.Sum(nil)
switch alg {
case RS256, RS384, RS512:
return rsa.VerifyPKCS1v15(ctx.publicKey, hash, hashed, signature)
case PS256, PS384, PS512:
return rsa.VerifyPSS(ctx.publicKey, hash, hashed, signature, nil)
}
return ErrUnsupportedAlgorithm
}
// Encrypt the given payload and update the object.
func (ctx ecEncrypterVerifier) encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) {
switch alg {
case ECDH_ES:
// ECDH-ES mode doesn't wrap a key, the shared secret is used directly as the key.
return recipientInfo{
header: &rawHeader{},
}, nil
case ECDH_ES_A128KW, ECDH_ES_A192KW, ECDH_ES_A256KW:
default:
return recipientInfo{}, ErrUnsupportedAlgorithm
}
generator := ecKeyGenerator{
algID: string(alg),
publicKey: ctx.publicKey,
}
switch alg {
case ECDH_ES_A128KW:
generator.size = 16
case ECDH_ES_A192KW:
generator.size = 24
case ECDH_ES_A256KW:
generator.size = 32
}
kek, header, err := generator.genKey()
if err != nil {
return recipientInfo{}, err
}
block, err := aes.NewCipher(kek)
if err != nil {
return recipientInfo{}, err
}
jek, err := josecipher.KeyWrap(block, cek)
if err != nil {
return recipientInfo{}, err
}
return recipientInfo{
encryptedKey: jek,
header: &header,
}, nil
}
// Get key size for EC key generator
func (ctx ecKeyGenerator) keySize() int {
return ctx.size
}
// Get a content encryption key for ECDH-ES
func (ctx ecKeyGenerator) genKey() ([]byte, rawHeader, error) {
priv, err := ecdsa.GenerateKey(ctx.publicKey.Curve, randReader)
if err != nil {
return nil, rawHeader{}, err
}
out := josecipher.DeriveECDHES(ctx.algID, []byte{}, []byte{}, priv, ctx.publicKey, ctx.size)
b, err := json.Marshal(&JSONWebKey{
Key: &priv.PublicKey,
})
if err != nil {
return nil, nil, err
}
headers := rawHeader{
headerEPK: makeRawMessage(b),
}
return out, headers, nil
}
// Decrypt the given payload and return the content encryption key.
func (ctx ecDecrypterSigner) decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) {
epk, err := headers.getEPK()
if err != nil {
return nil, errors.New("square/go-jose: invalid epk header")
}
if epk == nil {
return nil, errors.New("square/go-jose: missing epk header")
}
publicKey, ok := epk.Key.(*ecdsa.PublicKey)
if publicKey == nil || !ok {
return nil, errors.New("square/go-jose: invalid epk header")
}
if !ctx.privateKey.Curve.IsOnCurve(publicKey.X, publicKey.Y) {
return nil, errors.New("square/go-jose: invalid public key in epk header")
}
apuData, err := headers.getAPU()
if err != nil {
return nil, errors.New("square/go-jose: invalid apu header")
}
apvData, err := headers.getAPV()
if err != nil {
return nil, errors.New("square/go-jose: invalid apv header")
}
deriveKey := func(algID string, size int) []byte {
return josecipher.DeriveECDHES(algID, apuData.bytes(), apvData.bytes(), ctx.privateKey, publicKey, size)
}
var keySize int
algorithm := headers.getAlgorithm()
switch algorithm {
case ECDH_ES:
// ECDH-ES uses direct key agreement, no key unwrapping necessary.
return deriveKey(string(headers.getEncryption()), generator.keySize()), nil
case ECDH_ES_A128KW:
keySize = 16
case ECDH_ES_A192KW:
keySize = 24
case ECDH_ES_A256KW:
keySize = 32
default:
return nil, ErrUnsupportedAlgorithm
}
key := deriveKey(string(algorithm), keySize)
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
return josecipher.KeyUnwrap(block, recipient.encryptedKey)
}
func (ctx edDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) {
if alg != EdDSA {
return Signature{}, ErrUnsupportedAlgorithm
}
sig, err := ctx.privateKey.Sign(randReader, payload, crypto.Hash(0))
if err != nil {
return Signature{}, err
}
return Signature{
Signature: sig,
protected: &rawHeader{},
}, nil
}
func (ctx edEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error {
if alg != EdDSA {
return ErrUnsupportedAlgorithm
}
ok := ed25519.Verify(ctx.publicKey, payload, signature)
if !ok {
return errors.New("square/go-jose: ed25519 signature failed to verify")
}
return nil
}
// Sign the given payload
func (ctx ecDecrypterSigner) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) {
var expectedBitSize int
var hash crypto.Hash
switch alg {
case ES256:
expectedBitSize = 256
hash = crypto.SHA256
case ES384:
expectedBitSize = 384
hash = crypto.SHA384
case ES512:
expectedBitSize = 521
hash = crypto.SHA512
}
curveBits := ctx.privateKey.Curve.Params().BitSize
if expectedBitSize != curveBits {
return Signature{}, fmt.Errorf("square/go-jose: expected %d bit key, got %d bits instead", expectedBitSize, curveBits)
}
hasher := hash.New()
// According to documentation, Write() on hash never fails
_, _ = hasher.Write(payload)
hashed := hasher.Sum(nil)
r, s, err := ecdsa.Sign(randReader, ctx.privateKey, hashed)
if err != nil {
return Signature{}, err
}
keyBytes := curveBits / 8
if curveBits%8 > 0 {
keyBytes++
}
// We serialize the outpus (r and s) into big-endian byte arrays and pad
// them with zeros on the left to make sure the sizes work out. Both arrays
// must be keyBytes long, and the output must be 2*keyBytes long.
rBytes := r.Bytes()
rBytesPadded := make([]byte, keyBytes)
copy(rBytesPadded[keyBytes-len(rBytes):], rBytes)
sBytes := s.Bytes()
sBytesPadded := make([]byte, keyBytes)
copy(sBytesPadded[keyBytes-len(sBytes):], sBytes)
out := append(rBytesPadded, sBytesPadded...)
return Signature{
Signature: out,
protected: &rawHeader{},
}, nil
}
// Verify the given payload
func (ctx ecEncrypterVerifier) verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error {
var keySize int
var hash crypto.Hash
switch alg {
case ES256:
keySize = 32
hash = crypto.SHA256
case ES384:
keySize = 48
hash = crypto.SHA384
case ES512:
keySize = 66
hash = crypto.SHA512
default:
return ErrUnsupportedAlgorithm
}
if len(signature) != 2*keySize {
return fmt.Errorf("square/go-jose: invalid signature size, have %d bytes, wanted %d", len(signature), 2*keySize)
}
hasher := hash.New()
// According to documentation, Write() on hash never fails
_, _ = hasher.Write(payload)
hashed := hasher.Sum(nil)
r := big.NewInt(0).SetBytes(signature[:keySize])
s := big.NewInt(0).SetBytes(signature[keySize:])
match := ecdsa.Verify(ctx.publicKey, hashed, r, s)
if !match {
return errors.New("square/go-jose: ecdsa signature failed to verify")
}
return nil
}

196
vendor/gopkg.in/square/go-jose.v2/cipher/cbc_hmac.go generated vendored Normal file
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@ -0,0 +1,196 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package josecipher
import (
"bytes"
"crypto/cipher"
"crypto/hmac"
"crypto/sha256"
"crypto/sha512"
"crypto/subtle"
"encoding/binary"
"errors"
"hash"
)
const (
nonceBytes = 16
)
// NewCBCHMAC instantiates a new AEAD based on CBC+HMAC.
func NewCBCHMAC(key []byte, newBlockCipher func([]byte) (cipher.Block, error)) (cipher.AEAD, error) {
keySize := len(key) / 2
integrityKey := key[:keySize]
encryptionKey := key[keySize:]
blockCipher, err := newBlockCipher(encryptionKey)
if err != nil {
return nil, err
}
var hash func() hash.Hash
switch keySize {
case 16:
hash = sha256.New
case 24:
hash = sha512.New384
case 32:
hash = sha512.New
}
return &cbcAEAD{
hash: hash,
blockCipher: blockCipher,
authtagBytes: keySize,
integrityKey: integrityKey,
}, nil
}
// An AEAD based on CBC+HMAC
type cbcAEAD struct {
hash func() hash.Hash
authtagBytes int
integrityKey []byte
blockCipher cipher.Block
}
func (ctx *cbcAEAD) NonceSize() int {
return nonceBytes
}
func (ctx *cbcAEAD) Overhead() int {
// Maximum overhead is block size (for padding) plus auth tag length, where
// the length of the auth tag is equivalent to the key size.
return ctx.blockCipher.BlockSize() + ctx.authtagBytes
}
// Seal encrypts and authenticates the plaintext.
func (ctx *cbcAEAD) Seal(dst, nonce, plaintext, data []byte) []byte {
// Output buffer -- must take care not to mangle plaintext input.
ciphertext := make([]byte, uint64(len(plaintext))+uint64(ctx.Overhead()))[:len(plaintext)]
copy(ciphertext, plaintext)
ciphertext = padBuffer(ciphertext, ctx.blockCipher.BlockSize())
cbc := cipher.NewCBCEncrypter(ctx.blockCipher, nonce)
cbc.CryptBlocks(ciphertext, ciphertext)
authtag := ctx.computeAuthTag(data, nonce, ciphertext)
ret, out := resize(dst, uint64(len(dst))+uint64(len(ciphertext))+uint64(len(authtag)))
copy(out, ciphertext)
copy(out[len(ciphertext):], authtag)
return ret
}
// Open decrypts and authenticates the ciphertext.
func (ctx *cbcAEAD) Open(dst, nonce, ciphertext, data []byte) ([]byte, error) {
if len(ciphertext) < ctx.authtagBytes {
return nil, errors.New("square/go-jose: invalid ciphertext (too short)")
}
offset := len(ciphertext) - ctx.authtagBytes
expectedTag := ctx.computeAuthTag(data, nonce, ciphertext[:offset])
match := subtle.ConstantTimeCompare(expectedTag, ciphertext[offset:])
if match != 1 {
return nil, errors.New("square/go-jose: invalid ciphertext (auth tag mismatch)")
}
cbc := cipher.NewCBCDecrypter(ctx.blockCipher, nonce)
// Make copy of ciphertext buffer, don't want to modify in place
buffer := append([]byte{}, []byte(ciphertext[:offset])...)
if len(buffer)%ctx.blockCipher.BlockSize() > 0 {
return nil, errors.New("square/go-jose: invalid ciphertext (invalid length)")
}
cbc.CryptBlocks(buffer, buffer)
// Remove padding
plaintext, err := unpadBuffer(buffer, ctx.blockCipher.BlockSize())
if err != nil {
return nil, err
}
ret, out := resize(dst, uint64(len(dst))+uint64(len(plaintext)))
copy(out, plaintext)
return ret, nil
}
// Compute an authentication tag
func (ctx *cbcAEAD) computeAuthTag(aad, nonce, ciphertext []byte) []byte {
buffer := make([]byte, uint64(len(aad))+uint64(len(nonce))+uint64(len(ciphertext))+8)
n := 0
n += copy(buffer, aad)
n += copy(buffer[n:], nonce)
n += copy(buffer[n:], ciphertext)
binary.BigEndian.PutUint64(buffer[n:], uint64(len(aad))*8)
// According to documentation, Write() on hash.Hash never fails.
hmac := hmac.New(ctx.hash, ctx.integrityKey)
_, _ = hmac.Write(buffer)
return hmac.Sum(nil)[:ctx.authtagBytes]
}
// resize ensures the the given slice has a capacity of at least n bytes.
// If the capacity of the slice is less than n, a new slice is allocated
// and the existing data will be copied.
func resize(in []byte, n uint64) (head, tail []byte) {
if uint64(cap(in)) >= n {
head = in[:n]
} else {
head = make([]byte, n)
copy(head, in)
}
tail = head[len(in):]
return
}
// Apply padding
func padBuffer(buffer []byte, blockSize int) []byte {
missing := blockSize - (len(buffer) % blockSize)
ret, out := resize(buffer, uint64(len(buffer))+uint64(missing))
padding := bytes.Repeat([]byte{byte(missing)}, missing)
copy(out, padding)
return ret
}
// Remove padding
func unpadBuffer(buffer []byte, blockSize int) ([]byte, error) {
if len(buffer)%blockSize != 0 {
return nil, errors.New("square/go-jose: invalid padding")
}
last := buffer[len(buffer)-1]
count := int(last)
if count == 0 || count > blockSize || count > len(buffer) {
return nil, errors.New("square/go-jose: invalid padding")
}
padding := bytes.Repeat([]byte{last}, count)
if !bytes.HasSuffix(buffer, padding) {
return nil, errors.New("square/go-jose: invalid padding")
}
return buffer[:len(buffer)-count], nil
}

75
vendor/gopkg.in/square/go-jose.v2/cipher/concat_kdf.go generated vendored Normal file
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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package josecipher
import (
"crypto"
"encoding/binary"
"hash"
"io"
)
type concatKDF struct {
z, info []byte
i uint32
cache []byte
hasher hash.Hash
}
// NewConcatKDF builds a KDF reader based on the given inputs.
func NewConcatKDF(hash crypto.Hash, z, algID, ptyUInfo, ptyVInfo, supPubInfo, supPrivInfo []byte) io.Reader {
buffer := make([]byte, uint64(len(algID))+uint64(len(ptyUInfo))+uint64(len(ptyVInfo))+uint64(len(supPubInfo))+uint64(len(supPrivInfo)))
n := 0
n += copy(buffer, algID)
n += copy(buffer[n:], ptyUInfo)
n += copy(buffer[n:], ptyVInfo)
n += copy(buffer[n:], supPubInfo)
copy(buffer[n:], supPrivInfo)
hasher := hash.New()
return &concatKDF{
z: z,
info: buffer,
hasher: hasher,
cache: []byte{},
i: 1,
}
}
func (ctx *concatKDF) Read(out []byte) (int, error) {
copied := copy(out, ctx.cache)
ctx.cache = ctx.cache[copied:]
for copied < len(out) {
ctx.hasher.Reset()
// Write on a hash.Hash never fails
_ = binary.Write(ctx.hasher, binary.BigEndian, ctx.i)
_, _ = ctx.hasher.Write(ctx.z)
_, _ = ctx.hasher.Write(ctx.info)
hash := ctx.hasher.Sum(nil)
chunkCopied := copy(out[copied:], hash)
copied += chunkCopied
ctx.cache = hash[chunkCopied:]
ctx.i++
}
return copied, nil
}

62
vendor/gopkg.in/square/go-jose.v2/cipher/ecdh_es.go generated vendored Normal file
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@ -0,0 +1,62 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package josecipher
import (
"crypto"
"crypto/ecdsa"
"encoding/binary"
)
// DeriveECDHES derives a shared encryption key using ECDH/ConcatKDF as described in JWE/JWA.
// It is an error to call this function with a private/public key that are not on the same
// curve. Callers must ensure that the keys are valid before calling this function. Output
// size may be at most 1<<16 bytes (64 KiB).
func DeriveECDHES(alg string, apuData, apvData []byte, priv *ecdsa.PrivateKey, pub *ecdsa.PublicKey, size int) []byte {
if size > 1<<16 {
panic("ECDH-ES output size too large, must be less than or equal to 1<<16")
}
// algId, partyUInfo, partyVInfo inputs must be prefixed with the length
algID := lengthPrefixed([]byte(alg))
ptyUInfo := lengthPrefixed(apuData)
ptyVInfo := lengthPrefixed(apvData)
// suppPubInfo is the encoded length of the output size in bits
supPubInfo := make([]byte, 4)
binary.BigEndian.PutUint32(supPubInfo, uint32(size)*8)
if !priv.PublicKey.Curve.IsOnCurve(pub.X, pub.Y) {
panic("public key not on same curve as private key")
}
z, _ := priv.PublicKey.Curve.ScalarMult(pub.X, pub.Y, priv.D.Bytes())
reader := NewConcatKDF(crypto.SHA256, z.Bytes(), algID, ptyUInfo, ptyVInfo, supPubInfo, []byte{})
key := make([]byte, size)
// Read on the KDF will never fail
_, _ = reader.Read(key)
return key
}
func lengthPrefixed(data []byte) []byte {
out := make([]byte, len(data)+4)
binary.BigEndian.PutUint32(out, uint32(len(data)))
copy(out[4:], data)
return out
}

109
vendor/gopkg.in/square/go-jose.v2/cipher/key_wrap.go generated vendored Normal file
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@ -0,0 +1,109 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package josecipher
import (
"crypto/cipher"
"crypto/subtle"
"encoding/binary"
"errors"
)
var defaultIV = []byte{0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6}
// KeyWrap implements NIST key wrapping; it wraps a content encryption key (cek) with the given block cipher.
func KeyWrap(block cipher.Block, cek []byte) ([]byte, error) {
if len(cek)%8 != 0 {
return nil, errors.New("square/go-jose: key wrap input must be 8 byte blocks")
}
n := len(cek) / 8
r := make([][]byte, n)
for i := range r {
r[i] = make([]byte, 8)
copy(r[i], cek[i*8:])
}
buffer := make([]byte, 16)
tBytes := make([]byte, 8)
copy(buffer, defaultIV)
for t := 0; t < 6*n; t++ {
copy(buffer[8:], r[t%n])
block.Encrypt(buffer, buffer)
binary.BigEndian.PutUint64(tBytes, uint64(t+1))
for i := 0; i < 8; i++ {
buffer[i] = buffer[i] ^ tBytes[i]
}
copy(r[t%n], buffer[8:])
}
out := make([]byte, (n+1)*8)
copy(out, buffer[:8])
for i := range r {
copy(out[(i+1)*8:], r[i])
}
return out, nil
}
// KeyUnwrap implements NIST key unwrapping; it unwraps a content encryption key (cek) with the given block cipher.
func KeyUnwrap(block cipher.Block, ciphertext []byte) ([]byte, error) {
if len(ciphertext)%8 != 0 {
return nil, errors.New("square/go-jose: key wrap input must be 8 byte blocks")
}
n := (len(ciphertext) / 8) - 1
r := make([][]byte, n)
for i := range r {
r[i] = make([]byte, 8)
copy(r[i], ciphertext[(i+1)*8:])
}
buffer := make([]byte, 16)
tBytes := make([]byte, 8)
copy(buffer[:8], ciphertext[:8])
for t := 6*n - 1; t >= 0; t-- {
binary.BigEndian.PutUint64(tBytes, uint64(t+1))
for i := 0; i < 8; i++ {
buffer[i] = buffer[i] ^ tBytes[i]
}
copy(buffer[8:], r[t%n])
block.Decrypt(buffer, buffer)
copy(r[t%n], buffer[8:])
}
if subtle.ConstantTimeCompare(buffer[:8], defaultIV) == 0 {
return nil, errors.New("square/go-jose: failed to unwrap key")
}
out := make([]byte, n*8)
for i := range r {
copy(out[i*8:], r[i])
}
return out, nil
}

510
vendor/gopkg.in/square/go-jose.v2/crypter.go generated vendored Normal file
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@ -0,0 +1,510 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto/ecdsa"
"crypto/rsa"
"errors"
"fmt"
"reflect"
"gopkg.in/square/go-jose.v2/json"
)
// Encrypter represents an encrypter which produces an encrypted JWE object.
type Encrypter interface {
Encrypt(plaintext []byte) (*JSONWebEncryption, error)
EncryptWithAuthData(plaintext []byte, aad []byte) (*JSONWebEncryption, error)
Options() EncrypterOptions
}
// A generic content cipher
type contentCipher interface {
keySize() int
encrypt(cek []byte, aad, plaintext []byte) (*aeadParts, error)
decrypt(cek []byte, aad []byte, parts *aeadParts) ([]byte, error)
}
// A key generator (for generating/getting a CEK)
type keyGenerator interface {
keySize() int
genKey() ([]byte, rawHeader, error)
}
// A generic key encrypter
type keyEncrypter interface {
encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) // Encrypt a key
}
// A generic key decrypter
type keyDecrypter interface {
decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) // Decrypt a key
}
// A generic encrypter based on the given key encrypter and content cipher.
type genericEncrypter struct {
contentAlg ContentEncryption
compressionAlg CompressionAlgorithm
cipher contentCipher
recipients []recipientKeyInfo
keyGenerator keyGenerator
extraHeaders map[HeaderKey]interface{}
}
type recipientKeyInfo struct {
keyID string
keyAlg KeyAlgorithm
keyEncrypter keyEncrypter
}
// EncrypterOptions represents options that can be set on new encrypters.
type EncrypterOptions struct {
Compression CompressionAlgorithm
// Optional map of additional keys to be inserted into the protected header
// of a JWS object. Some specifications which make use of JWS like to insert
// additional values here. All values must be JSON-serializable.
ExtraHeaders map[HeaderKey]interface{}
}
// WithHeader adds an arbitrary value to the ExtraHeaders map, initializing it
// if necessary. It returns itself and so can be used in a fluent style.
func (eo *EncrypterOptions) WithHeader(k HeaderKey, v interface{}) *EncrypterOptions {
if eo.ExtraHeaders == nil {
eo.ExtraHeaders = map[HeaderKey]interface{}{}
}
eo.ExtraHeaders[k] = v
return eo
}
// WithContentType adds a content type ("cty") header and returns the updated
// EncrypterOptions.
func (eo *EncrypterOptions) WithContentType(contentType ContentType) *EncrypterOptions {
return eo.WithHeader(HeaderContentType, contentType)
}
// WithType adds a type ("typ") header and returns the updated EncrypterOptions.
func (eo *EncrypterOptions) WithType(typ ContentType) *EncrypterOptions {
return eo.WithHeader(HeaderType, typ)
}
// Recipient represents an algorithm/key to encrypt messages to.
type Recipient struct {
Algorithm KeyAlgorithm
Key interface{}
KeyID string
}
// NewEncrypter creates an appropriate encrypter based on the key type
func NewEncrypter(enc ContentEncryption, rcpt Recipient, opts *EncrypterOptions) (Encrypter, error) {
encrypter := &genericEncrypter{
contentAlg: enc,
recipients: []recipientKeyInfo{},
cipher: getContentCipher(enc),
}
if opts != nil {
encrypter.compressionAlg = opts.Compression
encrypter.extraHeaders = opts.ExtraHeaders
}
if encrypter.cipher == nil {
return nil, ErrUnsupportedAlgorithm
}
var keyID string
var rawKey interface{}
switch encryptionKey := rcpt.Key.(type) {
case JSONWebKey:
keyID, rawKey = encryptionKey.KeyID, encryptionKey.Key
case *JSONWebKey:
keyID, rawKey = encryptionKey.KeyID, encryptionKey.Key
default:
rawKey = encryptionKey
}
switch rcpt.Algorithm {
case DIRECT:
// Direct encryption mode must be treated differently
if reflect.TypeOf(rawKey) != reflect.TypeOf([]byte{}) {
return nil, ErrUnsupportedKeyType
}
encrypter.keyGenerator = staticKeyGenerator{
key: rawKey.([]byte),
}
recipientInfo, _ := newSymmetricRecipient(rcpt.Algorithm, rawKey.([]byte))
recipientInfo.keyID = keyID
if rcpt.KeyID != "" {
recipientInfo.keyID = rcpt.KeyID
}
encrypter.recipients = []recipientKeyInfo{recipientInfo}
return encrypter, nil
case ECDH_ES:
// ECDH-ES (w/o key wrapping) is similar to DIRECT mode
typeOf := reflect.TypeOf(rawKey)
if typeOf != reflect.TypeOf(&ecdsa.PublicKey{}) {
return nil, ErrUnsupportedKeyType
}
encrypter.keyGenerator = ecKeyGenerator{
size: encrypter.cipher.keySize(),
algID: string(enc),
publicKey: rawKey.(*ecdsa.PublicKey),
}
recipientInfo, _ := newECDHRecipient(rcpt.Algorithm, rawKey.(*ecdsa.PublicKey))
recipientInfo.keyID = keyID
if rcpt.KeyID != "" {
recipientInfo.keyID = rcpt.KeyID
}
encrypter.recipients = []recipientKeyInfo{recipientInfo}
return encrypter, nil
default:
// Can just add a standard recipient
encrypter.keyGenerator = randomKeyGenerator{
size: encrypter.cipher.keySize(),
}
err := encrypter.addRecipient(rcpt)
return encrypter, err
}
}
// NewMultiEncrypter creates a multi-encrypter based on the given parameters
func NewMultiEncrypter(enc ContentEncryption, rcpts []Recipient, opts *EncrypterOptions) (Encrypter, error) {
cipher := getContentCipher(enc)
if cipher == nil {
return nil, ErrUnsupportedAlgorithm
}
if rcpts == nil || len(rcpts) == 0 {
return nil, fmt.Errorf("square/go-jose: recipients is nil or empty")
}
encrypter := &genericEncrypter{
contentAlg: enc,
recipients: []recipientKeyInfo{},
cipher: cipher,
keyGenerator: randomKeyGenerator{
size: cipher.keySize(),
},
}
if opts != nil {
encrypter.compressionAlg = opts.Compression
}
for _, recipient := range rcpts {
err := encrypter.addRecipient(recipient)
if err != nil {
return nil, err
}
}
return encrypter, nil
}
func (ctx *genericEncrypter) addRecipient(recipient Recipient) (err error) {
var recipientInfo recipientKeyInfo
switch recipient.Algorithm {
case DIRECT, ECDH_ES:
return fmt.Errorf("square/go-jose: key algorithm '%s' not supported in multi-recipient mode", recipient.Algorithm)
}
recipientInfo, err = makeJWERecipient(recipient.Algorithm, recipient.Key)
if recipient.KeyID != "" {
recipientInfo.keyID = recipient.KeyID
}
if err == nil {
ctx.recipients = append(ctx.recipients, recipientInfo)
}
return err
}
func makeJWERecipient(alg KeyAlgorithm, encryptionKey interface{}) (recipientKeyInfo, error) {
switch encryptionKey := encryptionKey.(type) {
case *rsa.PublicKey:
return newRSARecipient(alg, encryptionKey)
case *ecdsa.PublicKey:
return newECDHRecipient(alg, encryptionKey)
case []byte:
return newSymmetricRecipient(alg, encryptionKey)
case *JSONWebKey:
recipient, err := makeJWERecipient(alg, encryptionKey.Key)
recipient.keyID = encryptionKey.KeyID
return recipient, err
default:
return recipientKeyInfo{}, ErrUnsupportedKeyType
}
}
// newDecrypter creates an appropriate decrypter based on the key type
func newDecrypter(decryptionKey interface{}) (keyDecrypter, error) {
switch decryptionKey := decryptionKey.(type) {
case *rsa.PrivateKey:
return &rsaDecrypterSigner{
privateKey: decryptionKey,
}, nil
case *ecdsa.PrivateKey:
return &ecDecrypterSigner{
privateKey: decryptionKey,
}, nil
case []byte:
return &symmetricKeyCipher{
key: decryptionKey,
}, nil
case JSONWebKey:
return newDecrypter(decryptionKey.Key)
case *JSONWebKey:
return newDecrypter(decryptionKey.Key)
default:
return nil, ErrUnsupportedKeyType
}
}
// Implementation of encrypt method producing a JWE object.
func (ctx *genericEncrypter) Encrypt(plaintext []byte) (*JSONWebEncryption, error) {
return ctx.EncryptWithAuthData(plaintext, nil)
}
// Implementation of encrypt method producing a JWE object.
func (ctx *genericEncrypter) EncryptWithAuthData(plaintext, aad []byte) (*JSONWebEncryption, error) {
obj := &JSONWebEncryption{}
obj.aad = aad
obj.protected = &rawHeader{}
err := obj.protected.set(headerEncryption, ctx.contentAlg)
if err != nil {
return nil, err
}
obj.recipients = make([]recipientInfo, len(ctx.recipients))
if len(ctx.recipients) == 0 {
return nil, fmt.Errorf("square/go-jose: no recipients to encrypt to")
}
cek, headers, err := ctx.keyGenerator.genKey()
if err != nil {
return nil, err
}
obj.protected.merge(&headers)
for i, info := range ctx.recipients {
recipient, err := info.keyEncrypter.encryptKey(cek, info.keyAlg)
if err != nil {
return nil, err
}
err = recipient.header.set(headerAlgorithm, info.keyAlg)
if err != nil {
return nil, err
}
if info.keyID != "" {
err = recipient.header.set(headerKeyID, info.keyID)
if err != nil {
return nil, err
}
}
obj.recipients[i] = recipient
}
if len(ctx.recipients) == 1 {
// Move per-recipient headers into main protected header if there's
// only a single recipient.
obj.protected.merge(obj.recipients[0].header)
obj.recipients[0].header = nil
}
if ctx.compressionAlg != NONE {
plaintext, err = compress(ctx.compressionAlg, plaintext)
if err != nil {
return nil, err
}
err = obj.protected.set(headerCompression, ctx.compressionAlg)
if err != nil {
return nil, err
}
}
for k, v := range ctx.extraHeaders {
b, err := json.Marshal(v)
if err != nil {
return nil, err
}
(*obj.protected)[k] = makeRawMessage(b)
}
authData := obj.computeAuthData()
parts, err := ctx.cipher.encrypt(cek, authData, plaintext)
if err != nil {
return nil, err
}
obj.iv = parts.iv
obj.ciphertext = parts.ciphertext
obj.tag = parts.tag
return obj, nil
}
func (ctx *genericEncrypter) Options() EncrypterOptions {
return EncrypterOptions{
Compression: ctx.compressionAlg,
ExtraHeaders: ctx.extraHeaders,
}
}
// Decrypt and validate the object and return the plaintext. Note that this
// function does not support multi-recipient, if you desire multi-recipient
// decryption use DecryptMulti instead.
func (obj JSONWebEncryption) Decrypt(decryptionKey interface{}) ([]byte, error) {
headers := obj.mergedHeaders(nil)
if len(obj.recipients) > 1 {
return nil, errors.New("square/go-jose: too many recipients in payload; expecting only one")
}
critical, err := headers.getCritical()
if err != nil {
return nil, fmt.Errorf("square/go-jose: invalid crit header")
}
if len(critical) > 0 {
return nil, fmt.Errorf("square/go-jose: unsupported crit header")
}
decrypter, err := newDecrypter(decryptionKey)
if err != nil {
return nil, err
}
cipher := getContentCipher(headers.getEncryption())
if cipher == nil {
return nil, fmt.Errorf("square/go-jose: unsupported enc value '%s'", string(headers.getEncryption()))
}
generator := randomKeyGenerator{
size: cipher.keySize(),
}
parts := &aeadParts{
iv: obj.iv,
ciphertext: obj.ciphertext,
tag: obj.tag,
}
authData := obj.computeAuthData()
var plaintext []byte
recipient := obj.recipients[0]
recipientHeaders := obj.mergedHeaders(&recipient)
cek, err := decrypter.decryptKey(recipientHeaders, &recipient, generator)
if err == nil {
// Found a valid CEK -- let's try to decrypt.
plaintext, err = cipher.decrypt(cek, authData, parts)
}
if plaintext == nil {
return nil, ErrCryptoFailure
}
// The "zip" header parameter may only be present in the protected header.
if comp := obj.protected.getCompression(); comp != "" {
plaintext, err = decompress(comp, plaintext)
}
return plaintext, err
}
// DecryptMulti decrypts and validates the object and returns the plaintexts,
// with support for multiple recipients. It returns the index of the recipient
// for which the decryption was successful, the merged headers for that recipient,
// and the plaintext.
func (obj JSONWebEncryption) DecryptMulti(decryptionKey interface{}) (int, Header, []byte, error) {
globalHeaders := obj.mergedHeaders(nil)
critical, err := globalHeaders.getCritical()
if err != nil {
return -1, Header{}, nil, fmt.Errorf("square/go-jose: invalid crit header")
}
if len(critical) > 0 {
return -1, Header{}, nil, fmt.Errorf("square/go-jose: unsupported crit header")
}
decrypter, err := newDecrypter(decryptionKey)
if err != nil {
return -1, Header{}, nil, err
}
encryption := globalHeaders.getEncryption()
cipher := getContentCipher(encryption)
if cipher == nil {
return -1, Header{}, nil, fmt.Errorf("square/go-jose: unsupported enc value '%s'", string(encryption))
}
generator := randomKeyGenerator{
size: cipher.keySize(),
}
parts := &aeadParts{
iv: obj.iv,
ciphertext: obj.ciphertext,
tag: obj.tag,
}
authData := obj.computeAuthData()
index := -1
var plaintext []byte
var headers rawHeader
for i, recipient := range obj.recipients {
recipientHeaders := obj.mergedHeaders(&recipient)
cek, err := decrypter.decryptKey(recipientHeaders, &recipient, generator)
if err == nil {
// Found a valid CEK -- let's try to decrypt.
plaintext, err = cipher.decrypt(cek, authData, parts)
if err == nil {
index = i
headers = recipientHeaders
break
}
}
}
if plaintext == nil || err != nil {
return -1, Header{}, nil, ErrCryptoFailure
}
// The "zip" header parameter may only be present in the protected header.
if comp := obj.protected.getCompression(); comp != "" {
plaintext, err = decompress(comp, plaintext)
}
sanitized, err := headers.sanitized()
if err != nil {
return -1, Header{}, nil, fmt.Errorf("square/go-jose: failed to sanitize header: %v", err)
}
return index, sanitized, plaintext, err
}

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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
Package jose aims to provide an implementation of the Javascript Object Signing
and Encryption set of standards. It implements encryption and signing based on
the JSON Web Encryption and JSON Web Signature standards, with optional JSON
Web Token support available in a sub-package. The library supports both the
compact and full serialization formats, and has optional support for multiple
recipients.
*/
package jose

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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"bytes"
"compress/flate"
"encoding/base64"
"encoding/binary"
"encoding/json"
"io"
"math/big"
"regexp"
)
var stripWhitespaceRegex = regexp.MustCompile("\\s")
// Helper function to serialize known-good objects.
// Precondition: value is not a nil pointer.
func mustSerializeJSON(value interface{}) []byte {
out, err := json.Marshal(value)
if err != nil {
panic(err)
}
// We never want to serialize the top-level value "null," since it's not a
// valid JOSE message. But if a caller passes in a nil pointer to this method,
// MarshalJSON will happily serialize it as the top-level value "null". If
// that value is then embedded in another operation, for instance by being
// base64-encoded and fed as input to a signing algorithm
// (https://github.com/square/go-jose/issues/22), the result will be
// incorrect. Because this method is intended for known-good objects, and a nil
// pointer is not a known-good object, we are free to panic in this case.
// Note: It's not possible to directly check whether the data pointed at by an
// interface is a nil pointer, so we do this hacky workaround.
// https://groups.google.com/forum/#!topic/golang-nuts/wnH302gBa4I
if string(out) == "null" {
panic("Tried to serialize a nil pointer.")
}
return out
}
// Strip all newlines and whitespace
func stripWhitespace(data string) string {
return stripWhitespaceRegex.ReplaceAllString(data, "")
}
// Perform compression based on algorithm
func compress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) {
switch algorithm {
case DEFLATE:
return deflate(input)
default:
return nil, ErrUnsupportedAlgorithm
}
}
// Perform decompression based on algorithm
func decompress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) {
switch algorithm {
case DEFLATE:
return inflate(input)
default:
return nil, ErrUnsupportedAlgorithm
}
}
// Compress with DEFLATE
func deflate(input []byte) ([]byte, error) {
output := new(bytes.Buffer)
// Writing to byte buffer, err is always nil
writer, _ := flate.NewWriter(output, 1)
_, _ = io.Copy(writer, bytes.NewBuffer(input))
err := writer.Close()
return output.Bytes(), err
}
// Decompress with DEFLATE
func inflate(input []byte) ([]byte, error) {
output := new(bytes.Buffer)
reader := flate.NewReader(bytes.NewBuffer(input))
_, err := io.Copy(output, reader)
if err != nil {
return nil, err
}
err = reader.Close()
return output.Bytes(), err
}
// byteBuffer represents a slice of bytes that can be serialized to url-safe base64.
type byteBuffer struct {
data []byte
}
func newBuffer(data []byte) *byteBuffer {
if data == nil {
return nil
}
return &byteBuffer{
data: data,
}
}
func newFixedSizeBuffer(data []byte, length int) *byteBuffer {
if len(data) > length {
panic("square/go-jose: invalid call to newFixedSizeBuffer (len(data) > length)")
}
pad := make([]byte, length-len(data))
return newBuffer(append(pad, data...))
}
func newBufferFromInt(num uint64) *byteBuffer {
data := make([]byte, 8)
binary.BigEndian.PutUint64(data, num)
return newBuffer(bytes.TrimLeft(data, "\x00"))
}
func (b *byteBuffer) MarshalJSON() ([]byte, error) {
return json.Marshal(b.base64())
}
func (b *byteBuffer) UnmarshalJSON(data []byte) error {
var encoded string
err := json.Unmarshal(data, &encoded)
if err != nil {
return err
}
if encoded == "" {
return nil
}
decoded, err := base64.RawURLEncoding.DecodeString(encoded)
if err != nil {
return err
}
*b = *newBuffer(decoded)
return nil
}
func (b *byteBuffer) base64() string {
return base64.RawURLEncoding.EncodeToString(b.data)
}
func (b *byteBuffer) bytes() []byte {
// Handling nil here allows us to transparently handle nil slices when serializing.
if b == nil {
return nil
}
return b.data
}
func (b byteBuffer) bigInt() *big.Int {
return new(big.Int).SetBytes(b.data)
}
func (b byteBuffer) toInt() int {
return int(b.bigInt().Int64())
}

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Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# Safe JSON
This repository contains a fork of the `encoding/json` package from Go 1.6.
The following changes were made:
* Object deserialization uses case-sensitive member name matching instead of
[case-insensitive matching](https://www.ietf.org/mail-archive/web/json/current/msg03763.html).
This is to avoid differences in the interpretation of JOSE messages between
go-jose and libraries written in other languages.
* When deserializing a JSON object, we check for duplicate keys and reject the
input whenever we detect a duplicate. Rather than trying to work with malformed
data, we prefer to reject it right away.

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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import "bytes"
// Compact appends to dst the JSON-encoded src with
// insignificant space characters elided.
func Compact(dst *bytes.Buffer, src []byte) error {
return compact(dst, src, false)
}
func compact(dst *bytes.Buffer, src []byte, escape bool) error {
origLen := dst.Len()
var scan scanner
scan.reset()
start := 0
for i, c := range src {
if escape && (c == '<' || c == '>' || c == '&') {
if start < i {
dst.Write(src[start:i])
}
dst.WriteString(`\u00`)
dst.WriteByte(hex[c>>4])
dst.WriteByte(hex[c&0xF])
start = i + 1
}
// Convert U+2028 and U+2029 (E2 80 A8 and E2 80 A9).
if c == 0xE2 && i+2 < len(src) && src[i+1] == 0x80 && src[i+2]&^1 == 0xA8 {
if start < i {
dst.Write(src[start:i])
}
dst.WriteString(`\u202`)
dst.WriteByte(hex[src[i+2]&0xF])
start = i + 3
}
v := scan.step(&scan, c)
if v >= scanSkipSpace {
if v == scanError {
break
}
if start < i {
dst.Write(src[start:i])
}
start = i + 1
}
}
if scan.eof() == scanError {
dst.Truncate(origLen)
return scan.err
}
if start < len(src) {
dst.Write(src[start:])
}
return nil
}
func newline(dst *bytes.Buffer, prefix, indent string, depth int) {
dst.WriteByte('\n')
dst.WriteString(prefix)
for i := 0; i < depth; i++ {
dst.WriteString(indent)
}
}
// Indent appends to dst an indented form of the JSON-encoded src.
// Each element in a JSON object or array begins on a new,
// indented line beginning with prefix followed by one or more
// copies of indent according to the indentation nesting.
// The data appended to dst does not begin with the prefix nor
// any indentation, to make it easier to embed inside other formatted JSON data.
// Although leading space characters (space, tab, carriage return, newline)
// at the beginning of src are dropped, trailing space characters
// at the end of src are preserved and copied to dst.
// For example, if src has no trailing spaces, neither will dst;
// if src ends in a trailing newline, so will dst.
func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
origLen := dst.Len()
var scan scanner
scan.reset()
needIndent := false
depth := 0
for _, c := range src {
scan.bytes++
v := scan.step(&scan, c)
if v == scanSkipSpace {
continue
}
if v == scanError {
break
}
if needIndent && v != scanEndObject && v != scanEndArray {
needIndent = false
depth++
newline(dst, prefix, indent, depth)
}
// Emit semantically uninteresting bytes
// (in particular, punctuation in strings) unmodified.
if v == scanContinue {
dst.WriteByte(c)
continue
}
// Add spacing around real punctuation.
switch c {
case '{', '[':
// delay indent so that empty object and array are formatted as {} and [].
needIndent = true
dst.WriteByte(c)
case ',':
dst.WriteByte(c)
newline(dst, prefix, indent, depth)
case ':':
dst.WriteByte(c)
dst.WriteByte(' ')
case '}', ']':
if needIndent {
// suppress indent in empty object/array
needIndent = false
} else {
depth--
newline(dst, prefix, indent, depth)
}
dst.WriteByte(c)
default:
dst.WriteByte(c)
}
}
if scan.eof() == scanError {
dst.Truncate(origLen)
return scan.err
}
return nil
}

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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
// JSON value parser state machine.
// Just about at the limit of what is reasonable to write by hand.
// Some parts are a bit tedious, but overall it nicely factors out the
// otherwise common code from the multiple scanning functions
// in this package (Compact, Indent, checkValid, nextValue, etc).
//
// This file starts with two simple examples using the scanner
// before diving into the scanner itself.
import "strconv"
// checkValid verifies that data is valid JSON-encoded data.
// scan is passed in for use by checkValid to avoid an allocation.
func checkValid(data []byte, scan *scanner) error {
scan.reset()
for _, c := range data {
scan.bytes++
if scan.step(scan, c) == scanError {
return scan.err
}
}
if scan.eof() == scanError {
return scan.err
}
return nil
}
// nextValue splits data after the next whole JSON value,
// returning that value and the bytes that follow it as separate slices.
// scan is passed in for use by nextValue to avoid an allocation.
func nextValue(data []byte, scan *scanner) (value, rest []byte, err error) {
scan.reset()
for i, c := range data {
v := scan.step(scan, c)
if v >= scanEndObject {
switch v {
// probe the scanner with a space to determine whether we will
// get scanEnd on the next character. Otherwise, if the next character
// is not a space, scanEndTop allocates a needless error.
case scanEndObject, scanEndArray:
if scan.step(scan, ' ') == scanEnd {
return data[:i+1], data[i+1:], nil
}
case scanError:
return nil, nil, scan.err
case scanEnd:
return data[:i], data[i:], nil
}
}
}
if scan.eof() == scanError {
return nil, nil, scan.err
}
return data, nil, nil
}
// A SyntaxError is a description of a JSON syntax error.
type SyntaxError struct {
msg string // description of error
Offset int64 // error occurred after reading Offset bytes
}
func (e *SyntaxError) Error() string { return e.msg }
// A scanner is a JSON scanning state machine.
// Callers call scan.reset() and then pass bytes in one at a time
// by calling scan.step(&scan, c) for each byte.
// The return value, referred to as an opcode, tells the
// caller about significant parsing events like beginning
// and ending literals, objects, and arrays, so that the
// caller can follow along if it wishes.
// The return value scanEnd indicates that a single top-level
// JSON value has been completed, *before* the byte that
// just got passed in. (The indication must be delayed in order
// to recognize the end of numbers: is 123 a whole value or
// the beginning of 12345e+6?).
type scanner struct {
// The step is a func to be called to execute the next transition.
// Also tried using an integer constant and a single func
// with a switch, but using the func directly was 10% faster
// on a 64-bit Mac Mini, and it's nicer to read.
step func(*scanner, byte) int
// Reached end of top-level value.
endTop bool
// Stack of what we're in the middle of - array values, object keys, object values.
parseState []int
// Error that happened, if any.
err error
// 1-byte redo (see undo method)
redo bool
redoCode int
redoState func(*scanner, byte) int
// total bytes consumed, updated by decoder.Decode
bytes int64
}
// These values are returned by the state transition functions
// assigned to scanner.state and the method scanner.eof.
// They give details about the current state of the scan that
// callers might be interested to know about.
// It is okay to ignore the return value of any particular
// call to scanner.state: if one call returns scanError,
// every subsequent call will return scanError too.
const (
// Continue.
scanContinue = iota // uninteresting byte
scanBeginLiteral // end implied by next result != scanContinue
scanBeginObject // begin object
scanObjectKey // just finished object key (string)
scanObjectValue // just finished non-last object value
scanEndObject // end object (implies scanObjectValue if possible)
scanBeginArray // begin array
scanArrayValue // just finished array value
scanEndArray // end array (implies scanArrayValue if possible)
scanSkipSpace // space byte; can skip; known to be last "continue" result
// Stop.
scanEnd // top-level value ended *before* this byte; known to be first "stop" result
scanError // hit an error, scanner.err.
)
// These values are stored in the parseState stack.
// They give the current state of a composite value
// being scanned. If the parser is inside a nested value
// the parseState describes the nested state, outermost at entry 0.
const (
parseObjectKey = iota // parsing object key (before colon)
parseObjectValue // parsing object value (after colon)
parseArrayValue // parsing array value
)
// reset prepares the scanner for use.
// It must be called before calling s.step.
func (s *scanner) reset() {
s.step = stateBeginValue
s.parseState = s.parseState[0:0]
s.err = nil
s.redo = false
s.endTop = false
}
// eof tells the scanner that the end of input has been reached.
// It returns a scan status just as s.step does.
func (s *scanner) eof() int {
if s.err != nil {
return scanError
}
if s.endTop {
return scanEnd
}
s.step(s, ' ')
if s.endTop {
return scanEnd
}
if s.err == nil {
s.err = &SyntaxError{"unexpected end of JSON input", s.bytes}
}
return scanError
}
// pushParseState pushes a new parse state p onto the parse stack.
func (s *scanner) pushParseState(p int) {
s.parseState = append(s.parseState, p)
}
// popParseState pops a parse state (already obtained) off the stack
// and updates s.step accordingly.
func (s *scanner) popParseState() {
n := len(s.parseState) - 1
s.parseState = s.parseState[0:n]
s.redo = false
if n == 0 {
s.step = stateEndTop
s.endTop = true
} else {
s.step = stateEndValue
}
}
func isSpace(c byte) bool {
return c == ' ' || c == '\t' || c == '\r' || c == '\n'
}
// stateBeginValueOrEmpty is the state after reading `[`.
func stateBeginValueOrEmpty(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == ']' {
return stateEndValue(s, c)
}
return stateBeginValue(s, c)
}
// stateBeginValue is the state at the beginning of the input.
func stateBeginValue(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
switch c {
case '{':
s.step = stateBeginStringOrEmpty
s.pushParseState(parseObjectKey)
return scanBeginObject
case '[':
s.step = stateBeginValueOrEmpty
s.pushParseState(parseArrayValue)
return scanBeginArray
case '"':
s.step = stateInString
return scanBeginLiteral
case '-':
s.step = stateNeg
return scanBeginLiteral
case '0': // beginning of 0.123
s.step = state0
return scanBeginLiteral
case 't': // beginning of true
s.step = stateT
return scanBeginLiteral
case 'f': // beginning of false
s.step = stateF
return scanBeginLiteral
case 'n': // beginning of null
s.step = stateN
return scanBeginLiteral
}
if '1' <= c && c <= '9' { // beginning of 1234.5
s.step = state1
return scanBeginLiteral
}
return s.error(c, "looking for beginning of value")
}
// stateBeginStringOrEmpty is the state after reading `{`.
func stateBeginStringOrEmpty(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == '}' {
n := len(s.parseState)
s.parseState[n-1] = parseObjectValue
return stateEndValue(s, c)
}
return stateBeginString(s, c)
}
// stateBeginString is the state after reading `{"key": value,`.
func stateBeginString(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == '"' {
s.step = stateInString
return scanBeginLiteral
}
return s.error(c, "looking for beginning of object key string")
}
// stateEndValue is the state after completing a value,
// such as after reading `{}` or `true` or `["x"`.
func stateEndValue(s *scanner, c byte) int {
n := len(s.parseState)
if n == 0 {
// Completed top-level before the current byte.
s.step = stateEndTop
s.endTop = true
return stateEndTop(s, c)
}
if c <= ' ' && isSpace(c) {
s.step = stateEndValue
return scanSkipSpace
}
ps := s.parseState[n-1]
switch ps {
case parseObjectKey:
if c == ':' {
s.parseState[n-1] = parseObjectValue
s.step = stateBeginValue
return scanObjectKey
}
return s.error(c, "after object key")
case parseObjectValue:
if c == ',' {
s.parseState[n-1] = parseObjectKey
s.step = stateBeginString
return scanObjectValue
}
if c == '}' {
s.popParseState()
return scanEndObject
}
return s.error(c, "after object key:value pair")
case parseArrayValue:
if c == ',' {
s.step = stateBeginValue
return scanArrayValue
}
if c == ']' {
s.popParseState()
return scanEndArray
}
return s.error(c, "after array element")
}
return s.error(c, "")
}
// stateEndTop is the state after finishing the top-level value,
// such as after reading `{}` or `[1,2,3]`.
// Only space characters should be seen now.
func stateEndTop(s *scanner, c byte) int {
if c != ' ' && c != '\t' && c != '\r' && c != '\n' {
// Complain about non-space byte on next call.
s.error(c, "after top-level value")
}
return scanEnd
}
// stateInString is the state after reading `"`.
func stateInString(s *scanner, c byte) int {
if c == '"' {
s.step = stateEndValue
return scanContinue
}
if c == '\\' {
s.step = stateInStringEsc
return scanContinue
}
if c < 0x20 {
return s.error(c, "in string literal")
}
return scanContinue
}
// stateInStringEsc is the state after reading `"\` during a quoted string.
func stateInStringEsc(s *scanner, c byte) int {
switch c {
case 'b', 'f', 'n', 'r', 't', '\\', '/', '"':
s.step = stateInString
return scanContinue
case 'u':
s.step = stateInStringEscU
return scanContinue
}
return s.error(c, "in string escape code")
}
// stateInStringEscU is the state after reading `"\u` during a quoted string.
func stateInStringEscU(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU1
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU1 is the state after reading `"\u1` during a quoted string.
func stateInStringEscU1(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU12
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU12 is the state after reading `"\u12` during a quoted string.
func stateInStringEscU12(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU123
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU123 is the state after reading `"\u123` during a quoted string.
func stateInStringEscU123(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInString
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateNeg is the state after reading `-` during a number.
func stateNeg(s *scanner, c byte) int {
if c == '0' {
s.step = state0
return scanContinue
}
if '1' <= c && c <= '9' {
s.step = state1
return scanContinue
}
return s.error(c, "in numeric literal")
}
// state1 is the state after reading a non-zero integer during a number,
// such as after reading `1` or `100` but not `0`.
func state1(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = state1
return scanContinue
}
return state0(s, c)
}
// state0 is the state after reading `0` during a number.
func state0(s *scanner, c byte) int {
if c == '.' {
s.step = stateDot
return scanContinue
}
if c == 'e' || c == 'E' {
s.step = stateE
return scanContinue
}
return stateEndValue(s, c)
}
// stateDot is the state after reading the integer and decimal point in a number,
// such as after reading `1.`.
func stateDot(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = stateDot0
return scanContinue
}
return s.error(c, "after decimal point in numeric literal")
}
// stateDot0 is the state after reading the integer, decimal point, and subsequent
// digits of a number, such as after reading `3.14`.
func stateDot0(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
return scanContinue
}
if c == 'e' || c == 'E' {
s.step = stateE
return scanContinue
}
return stateEndValue(s, c)
}
// stateE is the state after reading the mantissa and e in a number,
// such as after reading `314e` or `0.314e`.
func stateE(s *scanner, c byte) int {
if c == '+' || c == '-' {
s.step = stateESign
return scanContinue
}
return stateESign(s, c)
}
// stateESign is the state after reading the mantissa, e, and sign in a number,
// such as after reading `314e-` or `0.314e+`.
func stateESign(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = stateE0
return scanContinue
}
return s.error(c, "in exponent of numeric literal")
}
// stateE0 is the state after reading the mantissa, e, optional sign,
// and at least one digit of the exponent in a number,
// such as after reading `314e-2` or `0.314e+1` or `3.14e0`.
func stateE0(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
return scanContinue
}
return stateEndValue(s, c)
}
// stateT is the state after reading `t`.
func stateT(s *scanner, c byte) int {
if c == 'r' {
s.step = stateTr
return scanContinue
}
return s.error(c, "in literal true (expecting 'r')")
}
// stateTr is the state after reading `tr`.
func stateTr(s *scanner, c byte) int {
if c == 'u' {
s.step = stateTru
return scanContinue
}
return s.error(c, "in literal true (expecting 'u')")
}
// stateTru is the state after reading `tru`.
func stateTru(s *scanner, c byte) int {
if c == 'e' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal true (expecting 'e')")
}
// stateF is the state after reading `f`.
func stateF(s *scanner, c byte) int {
if c == 'a' {
s.step = stateFa
return scanContinue
}
return s.error(c, "in literal false (expecting 'a')")
}
// stateFa is the state after reading `fa`.
func stateFa(s *scanner, c byte) int {
if c == 'l' {
s.step = stateFal
return scanContinue
}
return s.error(c, "in literal false (expecting 'l')")
}
// stateFal is the state after reading `fal`.
func stateFal(s *scanner, c byte) int {
if c == 's' {
s.step = stateFals
return scanContinue
}
return s.error(c, "in literal false (expecting 's')")
}
// stateFals is the state after reading `fals`.
func stateFals(s *scanner, c byte) int {
if c == 'e' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal false (expecting 'e')")
}
// stateN is the state after reading `n`.
func stateN(s *scanner, c byte) int {
if c == 'u' {
s.step = stateNu
return scanContinue
}
return s.error(c, "in literal null (expecting 'u')")
}
// stateNu is the state after reading `nu`.
func stateNu(s *scanner, c byte) int {
if c == 'l' {
s.step = stateNul
return scanContinue
}
return s.error(c, "in literal null (expecting 'l')")
}
// stateNul is the state after reading `nul`.
func stateNul(s *scanner, c byte) int {
if c == 'l' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal null (expecting 'l')")
}
// stateError is the state after reaching a syntax error,
// such as after reading `[1}` or `5.1.2`.
func stateError(s *scanner, c byte) int {
return scanError
}
// error records an error and switches to the error state.
func (s *scanner) error(c byte, context string) int {
s.step = stateError
s.err = &SyntaxError{"invalid character " + quoteChar(c) + " " + context, s.bytes}
return scanError
}
// quoteChar formats c as a quoted character literal
func quoteChar(c byte) string {
// special cases - different from quoted strings
if c == '\'' {
return `'\''`
}
if c == '"' {
return `'"'`
}
// use quoted string with different quotation marks
s := strconv.Quote(string(c))
return "'" + s[1:len(s)-1] + "'"
}
// undo causes the scanner to return scanCode from the next state transition.
// This gives callers a simple 1-byte undo mechanism.
func (s *scanner) undo(scanCode int) {
if s.redo {
panic("json: invalid use of scanner")
}
s.redoCode = scanCode
s.redoState = s.step
s.step = stateRedo
s.redo = true
}
// stateRedo helps implement the scanner's 1-byte undo.
func stateRedo(s *scanner, c byte) int {
s.redo = false
s.step = s.redoState
return s.redoCode
}

480
vendor/gopkg.in/square/go-jose.v2/json/stream.go generated vendored Normal file
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@ -0,0 +1,480 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"bytes"
"errors"
"io"
)
// A Decoder reads and decodes JSON objects from an input stream.
type Decoder struct {
r io.Reader
buf []byte
d decodeState
scanp int // start of unread data in buf
scan scanner
err error
tokenState int
tokenStack []int
}
// NewDecoder returns a new decoder that reads from r.
//
// The decoder introduces its own buffering and may
// read data from r beyond the JSON values requested.
func NewDecoder(r io.Reader) *Decoder {
return &Decoder{r: r}
}
// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
// Number instead of as a float64.
func (dec *Decoder) UseNumber() { dec.d.useNumber = true }
// Decode reads the next JSON-encoded value from its
// input and stores it in the value pointed to by v.
//
// See the documentation for Unmarshal for details about
// the conversion of JSON into a Go value.
func (dec *Decoder) Decode(v interface{}) error {
if dec.err != nil {
return dec.err
}
if err := dec.tokenPrepareForDecode(); err != nil {
return err
}
if !dec.tokenValueAllowed() {
return &SyntaxError{msg: "not at beginning of value"}
}
// Read whole value into buffer.
n, err := dec.readValue()
if err != nil {
return err
}
dec.d.init(dec.buf[dec.scanp : dec.scanp+n])
dec.scanp += n
// Don't save err from unmarshal into dec.err:
// the connection is still usable since we read a complete JSON
// object from it before the error happened.
err = dec.d.unmarshal(v)
// fixup token streaming state
dec.tokenValueEnd()
return err
}
// Buffered returns a reader of the data remaining in the Decoder's
// buffer. The reader is valid until the next call to Decode.
func (dec *Decoder) Buffered() io.Reader {
return bytes.NewReader(dec.buf[dec.scanp:])
}
// readValue reads a JSON value into dec.buf.
// It returns the length of the encoding.
func (dec *Decoder) readValue() (int, error) {
dec.scan.reset()
scanp := dec.scanp
var err error
Input:
for {
// Look in the buffer for a new value.
for i, c := range dec.buf[scanp:] {
dec.scan.bytes++
v := dec.scan.step(&dec.scan, c)
if v == scanEnd {
scanp += i
break Input
}
// scanEnd is delayed one byte.
// We might block trying to get that byte from src,
// so instead invent a space byte.
if (v == scanEndObject || v == scanEndArray) && dec.scan.step(&dec.scan, ' ') == scanEnd {
scanp += i + 1
break Input
}
if v == scanError {
dec.err = dec.scan.err
return 0, dec.scan.err
}
}
scanp = len(dec.buf)
// Did the last read have an error?
// Delayed until now to allow buffer scan.
if err != nil {
if err == io.EOF {
if dec.scan.step(&dec.scan, ' ') == scanEnd {
break Input
}
if nonSpace(dec.buf) {
err = io.ErrUnexpectedEOF
}
}
dec.err = err
return 0, err
}
n := scanp - dec.scanp
err = dec.refill()
scanp = dec.scanp + n
}
return scanp - dec.scanp, nil
}
func (dec *Decoder) refill() error {
// Make room to read more into the buffer.
// First slide down data already consumed.
if dec.scanp > 0 {
n := copy(dec.buf, dec.buf[dec.scanp:])
dec.buf = dec.buf[:n]
dec.scanp = 0
}
// Grow buffer if not large enough.
const minRead = 512
if cap(dec.buf)-len(dec.buf) < minRead {
newBuf := make([]byte, len(dec.buf), 2*cap(dec.buf)+minRead)
copy(newBuf, dec.buf)
dec.buf = newBuf
}
// Read. Delay error for next iteration (after scan).
n, err := dec.r.Read(dec.buf[len(dec.buf):cap(dec.buf)])
dec.buf = dec.buf[0 : len(dec.buf)+n]
return err
}
func nonSpace(b []byte) bool {
for _, c := range b {
if !isSpace(c) {
return true
}
}
return false
}
// An Encoder writes JSON objects to an output stream.
type Encoder struct {
w io.Writer
err error
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{w: w}
}
// Encode writes the JSON encoding of v to the stream,
// followed by a newline character.
//
// See the documentation for Marshal for details about the
// conversion of Go values to JSON.
func (enc *Encoder) Encode(v interface{}) error {
if enc.err != nil {
return enc.err
}
e := newEncodeState()
err := e.marshal(v)
if err != nil {
return err
}
// Terminate each value with a newline.
// This makes the output look a little nicer
// when debugging, and some kind of space
// is required if the encoded value was a number,
// so that the reader knows there aren't more
// digits coming.
e.WriteByte('\n')
if _, err = enc.w.Write(e.Bytes()); err != nil {
enc.err = err
}
encodeStatePool.Put(e)
return err
}
// RawMessage is a raw encoded JSON object.
// It implements Marshaler and Unmarshaler and can
// be used to delay JSON decoding or precompute a JSON encoding.
type RawMessage []byte
// MarshalJSON returns *m as the JSON encoding of m.
func (m *RawMessage) MarshalJSON() ([]byte, error) {
return *m, nil
}
// UnmarshalJSON sets *m to a copy of data.
func (m *RawMessage) UnmarshalJSON(data []byte) error {
if m == nil {
return errors.New("json.RawMessage: UnmarshalJSON on nil pointer")
}
*m = append((*m)[0:0], data...)
return nil
}
var _ Marshaler = (*RawMessage)(nil)
var _ Unmarshaler = (*RawMessage)(nil)
// A Token holds a value of one of these types:
//
// Delim, for the four JSON delimiters [ ] { }
// bool, for JSON booleans
// float64, for JSON numbers
// Number, for JSON numbers
// string, for JSON string literals
// nil, for JSON null
//
type Token interface{}
const (
tokenTopValue = iota
tokenArrayStart
tokenArrayValue
tokenArrayComma
tokenObjectStart
tokenObjectKey
tokenObjectColon
tokenObjectValue
tokenObjectComma
)
// advance tokenstate from a separator state to a value state
func (dec *Decoder) tokenPrepareForDecode() error {
// Note: Not calling peek before switch, to avoid
// putting peek into the standard Decode path.
// peek is only called when using the Token API.
switch dec.tokenState {
case tokenArrayComma:
c, err := dec.peek()
if err != nil {
return err
}
if c != ',' {
return &SyntaxError{"expected comma after array element", 0}
}
dec.scanp++
dec.tokenState = tokenArrayValue
case tokenObjectColon:
c, err := dec.peek()
if err != nil {
return err
}
if c != ':' {
return &SyntaxError{"expected colon after object key", 0}
}
dec.scanp++
dec.tokenState = tokenObjectValue
}
return nil
}
func (dec *Decoder) tokenValueAllowed() bool {
switch dec.tokenState {
case tokenTopValue, tokenArrayStart, tokenArrayValue, tokenObjectValue:
return true
}
return false
}
func (dec *Decoder) tokenValueEnd() {
switch dec.tokenState {
case tokenArrayStart, tokenArrayValue:
dec.tokenState = tokenArrayComma
case tokenObjectValue:
dec.tokenState = tokenObjectComma
}
}
// A Delim is a JSON array or object delimiter, one of [ ] { or }.
type Delim rune
func (d Delim) String() string {
return string(d)
}
// Token returns the next JSON token in the input stream.
// At the end of the input stream, Token returns nil, io.EOF.
//
// Token guarantees that the delimiters [ ] { } it returns are
// properly nested and matched: if Token encounters an unexpected
// delimiter in the input, it will return an error.
//
// The input stream consists of basic JSON values—bool, string,
// number, and null—along with delimiters [ ] { } of type Delim
// to mark the start and end of arrays and objects.
// Commas and colons are elided.
func (dec *Decoder) Token() (Token, error) {
for {
c, err := dec.peek()
if err != nil {
return nil, err
}
switch c {
case '[':
if !dec.tokenValueAllowed() {
return dec.tokenError(c)
}
dec.scanp++
dec.tokenStack = append(dec.tokenStack, dec.tokenState)
dec.tokenState = tokenArrayStart
return Delim('['), nil
case ']':
if dec.tokenState != tokenArrayStart && dec.tokenState != tokenArrayComma {
return dec.tokenError(c)
}
dec.scanp++
dec.tokenState = dec.tokenStack[len(dec.tokenStack)-1]
dec.tokenStack = dec.tokenStack[:len(dec.tokenStack)-1]
dec.tokenValueEnd()
return Delim(']'), nil
case '{':
if !dec.tokenValueAllowed() {
return dec.tokenError(c)
}
dec.scanp++
dec.tokenStack = append(dec.tokenStack, dec.tokenState)
dec.tokenState = tokenObjectStart
return Delim('{'), nil
case '}':
if dec.tokenState != tokenObjectStart && dec.tokenState != tokenObjectComma {
return dec.tokenError(c)
}
dec.scanp++
dec.tokenState = dec.tokenStack[len(dec.tokenStack)-1]
dec.tokenStack = dec.tokenStack[:len(dec.tokenStack)-1]
dec.tokenValueEnd()
return Delim('}'), nil
case ':':
if dec.tokenState != tokenObjectColon {
return dec.tokenError(c)
}
dec.scanp++
dec.tokenState = tokenObjectValue
continue
case ',':
if dec.tokenState == tokenArrayComma {
dec.scanp++
dec.tokenState = tokenArrayValue
continue
}
if dec.tokenState == tokenObjectComma {
dec.scanp++
dec.tokenState = tokenObjectKey
continue
}
return dec.tokenError(c)
case '"':
if dec.tokenState == tokenObjectStart || dec.tokenState == tokenObjectKey {
var x string
old := dec.tokenState
dec.tokenState = tokenTopValue
err := dec.Decode(&x)
dec.tokenState = old
if err != nil {
clearOffset(err)
return nil, err
}
dec.tokenState = tokenObjectColon
return x, nil
}
fallthrough
default:
if !dec.tokenValueAllowed() {
return dec.tokenError(c)
}
var x interface{}
if err := dec.Decode(&x); err != nil {
clearOffset(err)
return nil, err
}
return x, nil
}
}
}
func clearOffset(err error) {
if s, ok := err.(*SyntaxError); ok {
s.Offset = 0
}
}
func (dec *Decoder) tokenError(c byte) (Token, error) {
var context string
switch dec.tokenState {
case tokenTopValue:
context = " looking for beginning of value"
case tokenArrayStart, tokenArrayValue, tokenObjectValue:
context = " looking for beginning of value"
case tokenArrayComma:
context = " after array element"
case tokenObjectKey:
context = " looking for beginning of object key string"
case tokenObjectColon:
context = " after object key"
case tokenObjectComma:
context = " after object key:value pair"
}
return nil, &SyntaxError{"invalid character " + quoteChar(c) + " " + context, 0}
}
// More reports whether there is another element in the
// current array or object being parsed.
func (dec *Decoder) More() bool {
c, err := dec.peek()
return err == nil && c != ']' && c != '}'
}
func (dec *Decoder) peek() (byte, error) {
var err error
for {
for i := dec.scanp; i < len(dec.buf); i++ {
c := dec.buf[i]
if isSpace(c) {
continue
}
dec.scanp = i
return c, nil
}
// buffer has been scanned, now report any error
if err != nil {
return 0, err
}
err = dec.refill()
}
}
/*
TODO
// EncodeToken writes the given JSON token to the stream.
// It returns an error if the delimiters [ ] { } are not properly used.
//
// EncodeToken does not call Flush, because usually it is part of
// a larger operation such as Encode, and those will call Flush when finished.
// Callers that create an Encoder and then invoke EncodeToken directly,
// without using Encode, need to call Flush when finished to ensure that
// the JSON is written to the underlying writer.
func (e *Encoder) EncodeToken(t Token) error {
...
}
*/

44
vendor/gopkg.in/square/go-jose.v2/json/tags.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"strings"
)
// tagOptions is the string following a comma in a struct field's "json"
// tag, or the empty string. It does not include the leading comma.
type tagOptions string
// parseTag splits a struct field's json tag into its name and
// comma-separated options.
func parseTag(tag string) (string, tagOptions) {
if idx := strings.Index(tag, ","); idx != -1 {
return tag[:idx], tagOptions(tag[idx+1:])
}
return tag, tagOptions("")
}
// Contains reports whether a comma-separated list of options
// contains a particular substr flag. substr must be surrounded by a
// string boundary or commas.
func (o tagOptions) Contains(optionName string) bool {
if len(o) == 0 {
return false
}
s := string(o)
for s != "" {
var next string
i := strings.Index(s, ",")
if i >= 0 {
s, next = s[:i], s[i+1:]
}
if s == optionName {
return true
}
s = next
}
return false
}

291
vendor/gopkg.in/square/go-jose.v2/jwe.go generated vendored Normal file
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@ -0,0 +1,291 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"encoding/base64"
"encoding/json"
"fmt"
"strings"
)
// rawJSONWebEncryption represents a raw JWE JSON object. Used for parsing/serializing.
type rawJSONWebEncryption struct {
Protected *byteBuffer `json:"protected,omitempty"`
Unprotected *rawHeader `json:"unprotected,omitempty"`
Header *rawHeader `json:"header,omitempty"`
Recipients []rawRecipientInfo `json:"recipients,omitempty"`
Aad *byteBuffer `json:"aad,omitempty"`
EncryptedKey *byteBuffer `json:"encrypted_key,omitempty"`
Iv *byteBuffer `json:"iv,omitempty"`
Ciphertext *byteBuffer `json:"ciphertext,omitempty"`
Tag *byteBuffer `json:"tag,omitempty"`
}
// rawRecipientInfo represents a raw JWE Per-Recipient header JSON object. Used for parsing/serializing.
type rawRecipientInfo struct {
Header *rawHeader `json:"header,omitempty"`
EncryptedKey string `json:"encrypted_key,omitempty"`
}
// JSONWebEncryption represents an encrypted JWE object after parsing.
type JSONWebEncryption struct {
Header Header
protected, unprotected *rawHeader
recipients []recipientInfo
aad, iv, ciphertext, tag []byte
original *rawJSONWebEncryption
}
// recipientInfo represents a raw JWE Per-Recipient header JSON object after parsing.
type recipientInfo struct {
header *rawHeader
encryptedKey []byte
}
// GetAuthData retrieves the (optional) authenticated data attached to the object.
func (obj JSONWebEncryption) GetAuthData() []byte {
if obj.aad != nil {
out := make([]byte, len(obj.aad))
copy(out, obj.aad)
return out
}
return nil
}
// Get the merged header values
func (obj JSONWebEncryption) mergedHeaders(recipient *recipientInfo) rawHeader {
out := rawHeader{}
out.merge(obj.protected)
out.merge(obj.unprotected)
if recipient != nil {
out.merge(recipient.header)
}
return out
}
// Get the additional authenticated data from a JWE object.
func (obj JSONWebEncryption) computeAuthData() []byte {
var protected string
if obj.original != nil {
protected = obj.original.Protected.base64()
} else {
protected = base64.RawURLEncoding.EncodeToString(mustSerializeJSON((obj.protected)))
}
output := []byte(protected)
if obj.aad != nil {
output = append(output, '.')
output = append(output, []byte(base64.RawURLEncoding.EncodeToString(obj.aad))...)
}
return output
}
// ParseEncrypted parses an encrypted message in compact or full serialization format.
func ParseEncrypted(input string) (*JSONWebEncryption, error) {
input = stripWhitespace(input)
if strings.HasPrefix(input, "{") {
return parseEncryptedFull(input)
}
return parseEncryptedCompact(input)
}
// parseEncryptedFull parses a message in compact format.
func parseEncryptedFull(input string) (*JSONWebEncryption, error) {
var parsed rawJSONWebEncryption
err := json.Unmarshal([]byte(input), &parsed)
if err != nil {
return nil, err
}
return parsed.sanitized()
}
// sanitized produces a cleaned-up JWE object from the raw JSON.
func (parsed *rawJSONWebEncryption) sanitized() (*JSONWebEncryption, error) {
obj := &JSONWebEncryption{
original: parsed,
unprotected: parsed.Unprotected,
}
// Check that there is not a nonce in the unprotected headers
if parsed.Unprotected != nil {
if nonce := parsed.Unprotected.getNonce(); nonce != "" {
return nil, ErrUnprotectedNonce
}
}
if parsed.Header != nil {
if nonce := parsed.Header.getNonce(); nonce != "" {
return nil, ErrUnprotectedNonce
}
}
if parsed.Protected != nil && len(parsed.Protected.bytes()) > 0 {
err := json.Unmarshal(parsed.Protected.bytes(), &obj.protected)
if err != nil {
return nil, fmt.Errorf("square/go-jose: invalid protected header: %s, %s", err, parsed.Protected.base64())
}
}
// Note: this must be called _after_ we parse the protected header,
// otherwise fields from the protected header will not get picked up.
var err error
mergedHeaders := obj.mergedHeaders(nil)
obj.Header, err = mergedHeaders.sanitized()
if err != nil {
return nil, fmt.Errorf("square/go-jose: cannot sanitize merged headers: %v (%v)", err, mergedHeaders)
}
if len(parsed.Recipients) == 0 {
obj.recipients = []recipientInfo{
{
header: parsed.Header,
encryptedKey: parsed.EncryptedKey.bytes(),
},
}
} else {
obj.recipients = make([]recipientInfo, len(parsed.Recipients))
for r := range parsed.Recipients {
encryptedKey, err := base64.RawURLEncoding.DecodeString(parsed.Recipients[r].EncryptedKey)
if err != nil {
return nil, err
}
// Check that there is not a nonce in the unprotected header
if parsed.Recipients[r].Header != nil && parsed.Recipients[r].Header.getNonce() != "" {
return nil, ErrUnprotectedNonce
}
obj.recipients[r].header = parsed.Recipients[r].Header
obj.recipients[r].encryptedKey = encryptedKey
}
}
for _, recipient := range obj.recipients {
headers := obj.mergedHeaders(&recipient)
if headers.getAlgorithm() == "" || headers.getEncryption() == "" {
return nil, fmt.Errorf("square/go-jose: message is missing alg/enc headers")
}
}
obj.iv = parsed.Iv.bytes()
obj.ciphertext = parsed.Ciphertext.bytes()
obj.tag = parsed.Tag.bytes()
obj.aad = parsed.Aad.bytes()
return obj, nil
}
// parseEncryptedCompact parses a message in compact format.
func parseEncryptedCompact(input string) (*JSONWebEncryption, error) {
parts := strings.Split(input, ".")
if len(parts) != 5 {
return nil, fmt.Errorf("square/go-jose: compact JWE format must have five parts")
}
rawProtected, err := base64.RawURLEncoding.DecodeString(parts[0])
if err != nil {
return nil, err
}
encryptedKey, err := base64.RawURLEncoding.DecodeString(parts[1])
if err != nil {
return nil, err
}
iv, err := base64.RawURLEncoding.DecodeString(parts[2])
if err != nil {
return nil, err
}
ciphertext, err := base64.RawURLEncoding.DecodeString(parts[3])
if err != nil {
return nil, err
}
tag, err := base64.RawURLEncoding.DecodeString(parts[4])
if err != nil {
return nil, err
}
raw := &rawJSONWebEncryption{
Protected: newBuffer(rawProtected),
EncryptedKey: newBuffer(encryptedKey),
Iv: newBuffer(iv),
Ciphertext: newBuffer(ciphertext),
Tag: newBuffer(tag),
}
return raw.sanitized()
}
// CompactSerialize serializes an object using the compact serialization format.
func (obj JSONWebEncryption) CompactSerialize() (string, error) {
if len(obj.recipients) != 1 || obj.unprotected != nil ||
obj.protected == nil || obj.recipients[0].header != nil {
return "", ErrNotSupported
}
serializedProtected := mustSerializeJSON(obj.protected)
return fmt.Sprintf(
"%s.%s.%s.%s.%s",
base64.RawURLEncoding.EncodeToString(serializedProtected),
base64.RawURLEncoding.EncodeToString(obj.recipients[0].encryptedKey),
base64.RawURLEncoding.EncodeToString(obj.iv),
base64.RawURLEncoding.EncodeToString(obj.ciphertext),
base64.RawURLEncoding.EncodeToString(obj.tag)), nil
}
// FullSerialize serializes an object using the full JSON serialization format.
func (obj JSONWebEncryption) FullSerialize() string {
raw := rawJSONWebEncryption{
Unprotected: obj.unprotected,
Iv: newBuffer(obj.iv),
Ciphertext: newBuffer(obj.ciphertext),
EncryptedKey: newBuffer(obj.recipients[0].encryptedKey),
Tag: newBuffer(obj.tag),
Aad: newBuffer(obj.aad),
Recipients: []rawRecipientInfo{},
}
if len(obj.recipients) > 1 {
for _, recipient := range obj.recipients {
info := rawRecipientInfo{
Header: recipient.header,
EncryptedKey: base64.RawURLEncoding.EncodeToString(recipient.encryptedKey),
}
raw.Recipients = append(raw.Recipients, info)
}
} else {
// Use flattened serialization
raw.Header = obj.recipients[0].header
raw.EncryptedKey = newBuffer(obj.recipients[0].encryptedKey)
}
if obj.protected != nil {
raw.Protected = newBuffer(mustSerializeJSON(obj.protected))
}
return string(mustSerializeJSON(raw))
}

537
vendor/gopkg.in/square/go-jose.v2/jwk.go generated vendored Normal file
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@ -0,0 +1,537 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"errors"
"fmt"
"math/big"
"reflect"
"strings"
"golang.org/x/crypto/ed25519"
"gopkg.in/square/go-jose.v2/json"
)
// rawJSONWebKey represents a public or private key in JWK format, used for parsing/serializing.
type rawJSONWebKey struct {
Use string `json:"use,omitempty"`
Kty string `json:"kty,omitempty"`
Kid string `json:"kid,omitempty"`
Crv string `json:"crv,omitempty"`
Alg string `json:"alg,omitempty"`
K *byteBuffer `json:"k,omitempty"`
X *byteBuffer `json:"x,omitempty"`
Y *byteBuffer `json:"y,omitempty"`
N *byteBuffer `json:"n,omitempty"`
E *byteBuffer `json:"e,omitempty"`
// -- Following fields are only used for private keys --
// RSA uses D, P and Q, while ECDSA uses only D. Fields Dp, Dq, and Qi are
// completely optional. Therefore for RSA/ECDSA, D != nil is a contract that
// we have a private key whereas D == nil means we have only a public key.
D *byteBuffer `json:"d,omitempty"`
P *byteBuffer `json:"p,omitempty"`
Q *byteBuffer `json:"q,omitempty"`
Dp *byteBuffer `json:"dp,omitempty"`
Dq *byteBuffer `json:"dq,omitempty"`
Qi *byteBuffer `json:"qi,omitempty"`
// Certificates
X5c []string `json:"x5c,omitempty"`
}
// JSONWebKey represents a public or private key in JWK format.
type JSONWebKey struct {
Key interface{}
Certificates []*x509.Certificate
KeyID string
Algorithm string
Use string
}
// MarshalJSON serializes the given key to its JSON representation.
func (k JSONWebKey) MarshalJSON() ([]byte, error) {
var raw *rawJSONWebKey
var err error
switch key := k.Key.(type) {
case ed25519.PublicKey:
raw = fromEdPublicKey(key)
case *ecdsa.PublicKey:
raw, err = fromEcPublicKey(key)
case *rsa.PublicKey:
raw = fromRsaPublicKey(key)
case ed25519.PrivateKey:
raw, err = fromEdPrivateKey(key)
case *ecdsa.PrivateKey:
raw, err = fromEcPrivateKey(key)
case *rsa.PrivateKey:
raw, err = fromRsaPrivateKey(key)
case []byte:
raw, err = fromSymmetricKey(key)
default:
return nil, fmt.Errorf("square/go-jose: unknown key type '%s'", reflect.TypeOf(key))
}
if err != nil {
return nil, err
}
raw.Kid = k.KeyID
raw.Alg = k.Algorithm
raw.Use = k.Use
for _, cert := range k.Certificates {
raw.X5c = append(raw.X5c, base64.StdEncoding.EncodeToString(cert.Raw))
}
return json.Marshal(raw)
}
// UnmarshalJSON reads a key from its JSON representation.
func (k *JSONWebKey) UnmarshalJSON(data []byte) (err error) {
var raw rawJSONWebKey
err = json.Unmarshal(data, &raw)
if err != nil {
return err
}
var key interface{}
switch raw.Kty {
case "EC":
if raw.D != nil {
key, err = raw.ecPrivateKey()
} else {
key, err = raw.ecPublicKey()
}
case "RSA":
if raw.D != nil {
key, err = raw.rsaPrivateKey()
} else {
key, err = raw.rsaPublicKey()
}
case "oct":
key, err = raw.symmetricKey()
case "OKP":
if raw.Crv == "Ed25519" && raw.X != nil {
if raw.D != nil {
key, err = raw.edPrivateKey()
} else {
key, err = raw.edPublicKey()
}
} else {
err = fmt.Errorf("square/go-jose: unknown curve %s'", raw.Crv)
}
default:
err = fmt.Errorf("square/go-jose: unknown json web key type '%s'", raw.Kty)
}
if err == nil {
*k = JSONWebKey{Key: key, KeyID: raw.Kid, Algorithm: raw.Alg, Use: raw.Use}
}
k.Certificates = make([]*x509.Certificate, len(raw.X5c))
for i, cert := range raw.X5c {
raw, err := base64.StdEncoding.DecodeString(cert)
if err != nil {
return err
}
k.Certificates[i], err = x509.ParseCertificate(raw)
if err != nil {
return err
}
}
return
}
// JSONWebKeySet represents a JWK Set object.
type JSONWebKeySet struct {
Keys []JSONWebKey `json:"keys"`
}
// Key convenience method returns keys by key ID. Specification states
// that a JWK Set "SHOULD" use distinct key IDs, but allows for some
// cases where they are not distinct. Hence method returns a slice
// of JSONWebKeys.
func (s *JSONWebKeySet) Key(kid string) []JSONWebKey {
var keys []JSONWebKey
for _, key := range s.Keys {
if key.KeyID == kid {
keys = append(keys, key)
}
}
return keys
}
const rsaThumbprintTemplate = `{"e":"%s","kty":"RSA","n":"%s"}`
const ecThumbprintTemplate = `{"crv":"%s","kty":"EC","x":"%s","y":"%s"}`
const edThumbprintTemplate = `{"crv":"%s","kty":"OKP",x":"%s"}`
func ecThumbprintInput(curve elliptic.Curve, x, y *big.Int) (string, error) {
coordLength := curveSize(curve)
crv, err := curveName(curve)
if err != nil {
return "", err
}
return fmt.Sprintf(ecThumbprintTemplate, crv,
newFixedSizeBuffer(x.Bytes(), coordLength).base64(),
newFixedSizeBuffer(y.Bytes(), coordLength).base64()), nil
}
func rsaThumbprintInput(n *big.Int, e int) (string, error) {
return fmt.Sprintf(rsaThumbprintTemplate,
newBufferFromInt(uint64(e)).base64(),
newBuffer(n.Bytes()).base64()), nil
}
func edThumbprintInput(ed ed25519.PublicKey) (string, error) {
crv := "Ed25519"
return fmt.Sprintf(edThumbprintTemplate, crv,
newFixedSizeBuffer(ed, 32).base64()), nil
}
// Thumbprint computes the JWK Thumbprint of a key using the
// indicated hash algorithm.
func (k *JSONWebKey) Thumbprint(hash crypto.Hash) ([]byte, error) {
var input string
var err error
switch key := k.Key.(type) {
case ed25519.PublicKey:
input, err = edThumbprintInput(key)
case *ecdsa.PublicKey:
input, err = ecThumbprintInput(key.Curve, key.X, key.Y)
case *ecdsa.PrivateKey:
input, err = ecThumbprintInput(key.Curve, key.X, key.Y)
case *rsa.PublicKey:
input, err = rsaThumbprintInput(key.N, key.E)
case *rsa.PrivateKey:
input, err = rsaThumbprintInput(key.N, key.E)
case ed25519.PrivateKey:
input, err = edThumbprintInput(ed25519.PublicKey(key[0:32]))
default:
return nil, fmt.Errorf("square/go-jose: unknown key type '%s'", reflect.TypeOf(key))
}
if err != nil {
return nil, err
}
h := hash.New()
h.Write([]byte(input))
return h.Sum(nil), nil
}
// IsPublic returns true if the JWK represents a public key (not symmetric, not private).
func (k *JSONWebKey) IsPublic() bool {
switch k.Key.(type) {
case *ecdsa.PublicKey, *rsa.PublicKey, *ed25519.PublicKey:
return true
default:
return false
}
}
// Valid checks that the key contains the expected parameters.
func (k *JSONWebKey) Valid() bool {
if k.Key == nil {
return false
}
switch key := k.Key.(type) {
case *ecdsa.PublicKey:
if key.Curve == nil || key.X == nil || key.Y == nil {
return false
}
case *ecdsa.PrivateKey:
if key.Curve == nil || key.X == nil || key.Y == nil || key.D == nil {
return false
}
case *rsa.PublicKey:
if key.N == nil || key.E == 0 {
return false
}
case *rsa.PrivateKey:
if key.N == nil || key.E == 0 || key.D == nil || len(key.Primes) < 2 {
return false
}
case *ed25519.PublicKey:
if len(*key) != 32 {
return false
}
case *ed25519.PrivateKey:
if len(*key) != 64 {
return false
}
default:
return false
}
return true
}
func (key rawJSONWebKey) rsaPublicKey() (*rsa.PublicKey, error) {
if key.N == nil || key.E == nil {
return nil, fmt.Errorf("square/go-jose: invalid RSA key, missing n/e values")
}
return &rsa.PublicKey{
N: key.N.bigInt(),
E: key.E.toInt(),
}, nil
}
func fromEdPublicKey(pub ed25519.PublicKey) *rawJSONWebKey {
return &rawJSONWebKey{
Kty: "OKP",
Crv: "Ed25519",
X: newBuffer(pub),
}
}
func fromRsaPublicKey(pub *rsa.PublicKey) *rawJSONWebKey {
return &rawJSONWebKey{
Kty: "RSA",
N: newBuffer(pub.N.Bytes()),
E: newBufferFromInt(uint64(pub.E)),
}
}
func (key rawJSONWebKey) ecPublicKey() (*ecdsa.PublicKey, error) {
var curve elliptic.Curve
switch key.Crv {
case "P-256":
curve = elliptic.P256()
case "P-384":
curve = elliptic.P384()
case "P-521":
curve = elliptic.P521()
default:
return nil, fmt.Errorf("square/go-jose: unsupported elliptic curve '%s'", key.Crv)
}
if key.X == nil || key.Y == nil {
return nil, errors.New("square/go-jose: invalid EC key, missing x/y values")
}
x := key.X.bigInt()
y := key.Y.bigInt()
if !curve.IsOnCurve(x, y) {
return nil, errors.New("square/go-jose: invalid EC key, X/Y are not on declared curve")
}
return &ecdsa.PublicKey{
Curve: curve,
X: x,
Y: y,
}, nil
}
func fromEcPublicKey(pub *ecdsa.PublicKey) (*rawJSONWebKey, error) {
if pub == nil || pub.X == nil || pub.Y == nil {
return nil, fmt.Errorf("square/go-jose: invalid EC key (nil, or X/Y missing)")
}
name, err := curveName(pub.Curve)
if err != nil {
return nil, err
}
size := curveSize(pub.Curve)
xBytes := pub.X.Bytes()
yBytes := pub.Y.Bytes()
if len(xBytes) > size || len(yBytes) > size {
return nil, fmt.Errorf("square/go-jose: invalid EC key (X/Y too large)")
}
key := &rawJSONWebKey{
Kty: "EC",
Crv: name,
X: newFixedSizeBuffer(xBytes, size),
Y: newFixedSizeBuffer(yBytes, size),
}
return key, nil
}
func (key rawJSONWebKey) edPrivateKey() (ed25519.PrivateKey, error) {
var missing []string
switch {
case key.D == nil:
missing = append(missing, "D")
case key.X == nil:
missing = append(missing, "X")
}
if len(missing) > 0 {
return nil, fmt.Errorf("square/go-jose: invalid Ed25519 private key, missing %s value(s)", strings.Join(missing, ", "))
}
privateKey := make([]byte, ed25519.PrivateKeySize)
copy(privateKey[0:32], key.X.bytes())
copy(privateKey[32:], key.D.bytes())
rv := ed25519.PrivateKey(privateKey)
return rv, nil
}
func (key rawJSONWebKey) edPublicKey() (ed25519.PublicKey, error) {
if key.X == nil {
return nil, fmt.Errorf("square/go-jose: invalid Ed key, missing x value")
}
publicKey := make([]byte, ed25519.PublicKeySize)
copy(publicKey[0:32], key.X.bytes())
rv := ed25519.PublicKey(publicKey)
return rv, nil
}
func (key rawJSONWebKey) rsaPrivateKey() (*rsa.PrivateKey, error) {
var missing []string
switch {
case key.N == nil:
missing = append(missing, "N")
case key.E == nil:
missing = append(missing, "E")
case key.D == nil:
missing = append(missing, "D")
case key.P == nil:
missing = append(missing, "P")
case key.Q == nil:
missing = append(missing, "Q")
}
if len(missing) > 0 {
return nil, fmt.Errorf("square/go-jose: invalid RSA private key, missing %s value(s)", strings.Join(missing, ", "))
}
rv := &rsa.PrivateKey{
PublicKey: rsa.PublicKey{
N: key.N.bigInt(),
E: key.E.toInt(),
},
D: key.D.bigInt(),
Primes: []*big.Int{
key.P.bigInt(),
key.Q.bigInt(),
},
}
if key.Dp != nil {
rv.Precomputed.Dp = key.Dp.bigInt()
}
if key.Dq != nil {
rv.Precomputed.Dq = key.Dq.bigInt()
}
if key.Qi != nil {
rv.Precomputed.Qinv = key.Qi.bigInt()
}
err := rv.Validate()
return rv, err
}
func fromEdPrivateKey(ed ed25519.PrivateKey) (*rawJSONWebKey, error) {
raw := fromEdPublicKey(ed25519.PublicKey(ed[0:32]))
raw.D = newBuffer(ed[32:])
return raw, nil
}
func fromRsaPrivateKey(rsa *rsa.PrivateKey) (*rawJSONWebKey, error) {
if len(rsa.Primes) != 2 {
return nil, ErrUnsupportedKeyType
}
raw := fromRsaPublicKey(&rsa.PublicKey)
raw.D = newBuffer(rsa.D.Bytes())
raw.P = newBuffer(rsa.Primes[0].Bytes())
raw.Q = newBuffer(rsa.Primes[1].Bytes())
return raw, nil
}
func (key rawJSONWebKey) ecPrivateKey() (*ecdsa.PrivateKey, error) {
var curve elliptic.Curve
switch key.Crv {
case "P-256":
curve = elliptic.P256()
case "P-384":
curve = elliptic.P384()
case "P-521":
curve = elliptic.P521()
default:
return nil, fmt.Errorf("square/go-jose: unsupported elliptic curve '%s'", key.Crv)
}
if key.X == nil || key.Y == nil || key.D == nil {
return nil, fmt.Errorf("square/go-jose: invalid EC private key, missing x/y/d values")
}
x := key.X.bigInt()
y := key.Y.bigInt()
if !curve.IsOnCurve(x, y) {
return nil, errors.New("square/go-jose: invalid EC key, X/Y are not on declared curve")
}
return &ecdsa.PrivateKey{
PublicKey: ecdsa.PublicKey{
Curve: curve,
X: x,
Y: y,
},
D: key.D.bigInt(),
}, nil
}
func fromEcPrivateKey(ec *ecdsa.PrivateKey) (*rawJSONWebKey, error) {
raw, err := fromEcPublicKey(&ec.PublicKey)
if err != nil {
return nil, err
}
if ec.D == nil {
return nil, fmt.Errorf("square/go-jose: invalid EC private key")
}
raw.D = newBuffer(ec.D.Bytes())
return raw, nil
}
func fromSymmetricKey(key []byte) (*rawJSONWebKey, error) {
return &rawJSONWebKey{
Kty: "oct",
K: newBuffer(key),
}, nil
}
func (key rawJSONWebKey) symmetricKey() ([]byte, error) {
if key.K == nil {
return nil, fmt.Errorf("square/go-jose: invalid OCT (symmetric) key, missing k value")
}
return key.K.bytes(), nil
}

282
vendor/gopkg.in/square/go-jose.v2/jws.go generated vendored Normal file
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@ -0,0 +1,282 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"encoding/base64"
"errors"
"fmt"
"strings"
"gopkg.in/square/go-jose.v2/json"
)
// rawJSONWebSignature represents a raw JWS JSON object. Used for parsing/serializing.
type rawJSONWebSignature struct {
Payload *byteBuffer `json:"payload,omitempty"`
Signatures []rawSignatureInfo `json:"signatures,omitempty"`
Protected *byteBuffer `json:"protected,omitempty"`
Header *rawHeader `json:"header,omitempty"`
Signature *byteBuffer `json:"signature,omitempty"`
}
// rawSignatureInfo represents a single JWS signature over the JWS payload and protected header.
type rawSignatureInfo struct {
Protected *byteBuffer `json:"protected,omitempty"`
Header *rawHeader `json:"header,omitempty"`
Signature *byteBuffer `json:"signature,omitempty"`
}
// JSONWebSignature represents a signed JWS object after parsing.
type JSONWebSignature struct {
payload []byte
// Signatures attached to this object (may be more than one for multi-sig).
// Be careful about accessing these directly, prefer to use Verify() or
// VerifyMulti() to ensure that the data you're getting is verified.
Signatures []Signature
}
// Signature represents a single signature over the JWS payload and protected header.
type Signature struct {
// Header fields, such as the signature algorithm
Header Header
// The actual signature value
Signature []byte
protected *rawHeader
header *rawHeader
original *rawSignatureInfo
}
// ParseSigned parses a signed message in compact or full serialization format.
func ParseSigned(input string) (*JSONWebSignature, error) {
input = stripWhitespace(input)
if strings.HasPrefix(input, "{") {
return parseSignedFull(input)
}
return parseSignedCompact(input)
}
// Get a header value
func (sig Signature) mergedHeaders() rawHeader {
out := rawHeader{}
out.merge(sig.protected)
out.merge(sig.header)
return out
}
// Compute data to be signed
func (obj JSONWebSignature) computeAuthData(signature *Signature) []byte {
var serializedProtected string
if signature.original != nil && signature.original.Protected != nil {
serializedProtected = signature.original.Protected.base64()
} else if signature.protected != nil {
serializedProtected = base64.RawURLEncoding.EncodeToString(mustSerializeJSON(signature.protected))
} else {
serializedProtected = ""
}
return []byte(fmt.Sprintf("%s.%s",
serializedProtected,
base64.RawURLEncoding.EncodeToString(obj.payload)))
}
// parseSignedFull parses a message in full format.
func parseSignedFull(input string) (*JSONWebSignature, error) {
var parsed rawJSONWebSignature
err := json.Unmarshal([]byte(input), &parsed)
if err != nil {
return nil, err
}
return parsed.sanitized()
}
// sanitized produces a cleaned-up JWS object from the raw JSON.
func (parsed *rawJSONWebSignature) sanitized() (*JSONWebSignature, error) {
if parsed.Payload == nil {
return nil, fmt.Errorf("square/go-jose: missing payload in JWS message")
}
obj := &JSONWebSignature{
payload: parsed.Payload.bytes(),
Signatures: make([]Signature, len(parsed.Signatures)),
}
if len(parsed.Signatures) == 0 {
// No signatures array, must be flattened serialization
signature := Signature{}
if parsed.Protected != nil && len(parsed.Protected.bytes()) > 0 {
signature.protected = &rawHeader{}
err := json.Unmarshal(parsed.Protected.bytes(), signature.protected)
if err != nil {
return nil, err
}
}
// Check that there is not a nonce in the unprotected header
if parsed.Header != nil && parsed.Header.getNonce() != "" {
return nil, ErrUnprotectedNonce
}
signature.header = parsed.Header
signature.Signature = parsed.Signature.bytes()
// Make a fake "original" rawSignatureInfo to store the unprocessed
// Protected header. This is necessary because the Protected header can
// contain arbitrary fields not registered as part of the spec. See
// https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-41#section-4
// If we unmarshal Protected into a rawHeader with its explicit list of fields,
// we cannot marshal losslessly. So we have to keep around the original bytes.
// This is used in computeAuthData, which will first attempt to use
// the original bytes of a protected header, and fall back on marshaling the
// header struct only if those bytes are not available.
signature.original = &rawSignatureInfo{
Protected: parsed.Protected,
Header: parsed.Header,
Signature: parsed.Signature,
}
var err error
signature.Header, err = signature.mergedHeaders().sanitized()
if err != nil {
return nil, err
}
// As per RFC 7515 Section 4.1.3, only public keys are allowed to be embedded.
jwk := signature.Header.JSONWebKey
if jwk != nil && (!jwk.Valid() || !jwk.IsPublic()) {
return nil, errors.New("square/go-jose: invalid embedded jwk, must be public key")
}
obj.Signatures = append(obj.Signatures, signature)
}
for i, sig := range parsed.Signatures {
if sig.Protected != nil && len(sig.Protected.bytes()) > 0 {
obj.Signatures[i].protected = &rawHeader{}
err := json.Unmarshal(sig.Protected.bytes(), obj.Signatures[i].protected)
if err != nil {
return nil, err
}
}
// Check that there is not a nonce in the unprotected header
if sig.Header != nil && sig.Header.getNonce() != "" {
return nil, ErrUnprotectedNonce
}
var err error
obj.Signatures[i].Header, err = obj.Signatures[i].mergedHeaders().sanitized()
if err != nil {
return nil, err
}
obj.Signatures[i].Signature = sig.Signature.bytes()
// As per RFC 7515 Section 4.1.3, only public keys are allowed to be embedded.
jwk := obj.Signatures[i].Header.JSONWebKey
if jwk != nil && (!jwk.Valid() || !jwk.IsPublic()) {
return nil, errors.New("square/go-jose: invalid embedded jwk, must be public key")
}
// Copy value of sig
original := sig
obj.Signatures[i].header = sig.Header
obj.Signatures[i].original = &original
}
return obj, nil
}
// parseSignedCompact parses a message in compact format.
func parseSignedCompact(input string) (*JSONWebSignature, error) {
parts := strings.Split(input, ".")
if len(parts) != 3 {
return nil, fmt.Errorf("square/go-jose: compact JWS format must have three parts")
}
rawProtected, err := base64.RawURLEncoding.DecodeString(parts[0])
if err != nil {
return nil, err
}
payload, err := base64.RawURLEncoding.DecodeString(parts[1])
if err != nil {
return nil, err
}
signature, err := base64.RawURLEncoding.DecodeString(parts[2])
if err != nil {
return nil, err
}
raw := &rawJSONWebSignature{
Payload: newBuffer(payload),
Protected: newBuffer(rawProtected),
Signature: newBuffer(signature),
}
return raw.sanitized()
}
// CompactSerialize serializes an object using the compact serialization format.
func (obj JSONWebSignature) CompactSerialize() (string, error) {
if len(obj.Signatures) != 1 || obj.Signatures[0].header != nil || obj.Signatures[0].protected == nil {
return "", ErrNotSupported
}
serializedProtected := mustSerializeJSON(obj.Signatures[0].protected)
return fmt.Sprintf(
"%s.%s.%s",
base64.RawURLEncoding.EncodeToString(serializedProtected),
base64.RawURLEncoding.EncodeToString(obj.payload),
base64.RawURLEncoding.EncodeToString(obj.Signatures[0].Signature)), nil
}
// FullSerialize serializes an object using the full JSON serialization format.
func (obj JSONWebSignature) FullSerialize() string {
raw := rawJSONWebSignature{
Payload: newBuffer(obj.payload),
}
if len(obj.Signatures) == 1 {
if obj.Signatures[0].protected != nil {
serializedProtected := mustSerializeJSON(obj.Signatures[0].protected)
raw.Protected = newBuffer(serializedProtected)
}
raw.Header = obj.Signatures[0].header
raw.Signature = newBuffer(obj.Signatures[0].Signature)
} else {
raw.Signatures = make([]rawSignatureInfo, len(obj.Signatures))
for i, signature := range obj.Signatures {
raw.Signatures[i] = rawSignatureInfo{
Header: signature.header,
Signature: newBuffer(signature.Signature),
}
if signature.protected != nil {
raw.Signatures[i].Protected = newBuffer(mustSerializeJSON(signature.protected))
}
}
}
return string(mustSerializeJSON(raw))
}

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vendor/gopkg.in/square/go-jose.v2/jwt/builder.go generated vendored Normal file
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/*-
* Copyright 2016 Zbigniew Mandziejewicz
* Copyright 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jwt
import (
"bytes"
"reflect"
"gopkg.in/square/go-jose.v2/json"
"gopkg.in/square/go-jose.v2"
)
// Builder is a utility for making JSON Web Tokens. Calls can be chained, and
// errors are accumulated until the final call to CompactSerialize/FullSerialize.
type Builder interface {
// Claims encodes claims into JWE/JWS form. Multiple calls will merge claims
// into single JSON object. If you are passing private claims, make sure to set
// struct field tags to specify the name for the JSON key to be used when
// serializing.
Claims(i interface{}) Builder
// Token builds a JSONWebToken from provided data.
Token() (*JSONWebToken, error)
// FullSerialize serializes a token using the full serialization format.
FullSerialize() (string, error)
// CompactSerialize serializes a token using the compact serialization format.
CompactSerialize() (string, error)
}
// NestedBuilder is a utility for making Signed-Then-Encrypted JSON Web Tokens.
// Calls can be chained, and errors are accumulated until final call to
// CompactSerialize/FullSerialize.
type NestedBuilder interface {
// Claims encodes claims into JWE/JWS form. Multiple calls will merge claims
// into single JSON object. If you are passing private claims, make sure to set
// struct field tags to specify the name for the JSON key to be used when
// serializing.
Claims(i interface{}) NestedBuilder
// Token builds a NestedJSONWebToken from provided data.
Token() (*NestedJSONWebToken, error)
// FullSerialize serializes a token using the full serialization format.
FullSerialize() (string, error)
// CompactSerialize serializes a token using the compact serialization format.
CompactSerialize() (string, error)
}
type builder struct {
payload map[string]interface{}
err error
}
type signedBuilder struct {
builder
sig jose.Signer
}
type encryptedBuilder struct {
builder
enc jose.Encrypter
}
type nestedBuilder struct {
builder
sig jose.Signer
enc jose.Encrypter
}
// Signed creates builder for signed tokens.
func Signed(sig jose.Signer) Builder {
return &signedBuilder{
sig: sig,
}
}
// Encrypted creates builder for encrypted tokens.
func Encrypted(enc jose.Encrypter) Builder {
return &encryptedBuilder{
enc: enc,
}
}
// SignedAndEncrypted creates builder for signed-then-encrypted tokens.
// ErrInvalidContentType will be returned if encrypter doesn't have JWT content type.
func SignedAndEncrypted(sig jose.Signer, enc jose.Encrypter) NestedBuilder {
if contentType, _ := enc.Options().ExtraHeaders[jose.HeaderContentType].(jose.ContentType); contentType != "JWT" {
return &nestedBuilder{
builder: builder{
err: ErrInvalidContentType,
},
}
}
return &nestedBuilder{
sig: sig,
enc: enc,
}
}
func (b builder) claims(i interface{}) builder {
if b.err != nil {
return b
}
m, ok := i.(map[string]interface{})
switch {
case ok:
return b.merge(m)
case reflect.Indirect(reflect.ValueOf(i)).Kind() == reflect.Struct:
m, err := normalize(i)
if err != nil {
return builder{
err: err,
}
}
return b.merge(m)
default:
return builder{
err: ErrInvalidClaims,
}
}
}
func normalize(i interface{}) (map[string]interface{}, error) {
m := make(map[string]interface{})
raw, err := json.Marshal(i)
if err != nil {
return nil, err
}
d := json.NewDecoder(bytes.NewReader(raw))
d.UseNumber()
if err := d.Decode(&m); err != nil {
return nil, err
}
return m, nil
}
func (b *builder) merge(m map[string]interface{}) builder {
p := make(map[string]interface{})
for k, v := range b.payload {
p[k] = v
}
for k, v := range m {
p[k] = v
}
return builder{
payload: p,
}
}
func (b *builder) token(p func(interface{}) ([]byte, error), h []jose.Header) (*JSONWebToken, error) {
return &JSONWebToken{
payload: p,
Headers: h,
}, nil
}
func (b *signedBuilder) Claims(i interface{}) Builder {
return &signedBuilder{
builder: b.builder.claims(i),
sig: b.sig,
}
}
func (b *signedBuilder) Token() (*JSONWebToken, error) {
sig, err := b.sign()
if err != nil {
return nil, err
}
h := make([]jose.Header, len(sig.Signatures))
for i, v := range sig.Signatures {
h[i] = v.Header
}
return b.builder.token(sig.Verify, h)
}
func (b *signedBuilder) CompactSerialize() (string, error) {
sig, err := b.sign()
if err != nil {
return "", err
}
return sig.CompactSerialize()
}
func (b *signedBuilder) FullSerialize() (string, error) {
sig, err := b.sign()
if err != nil {
return "", err
}
return sig.FullSerialize(), nil
}
func (b *signedBuilder) sign() (*jose.JSONWebSignature, error) {
if b.err != nil {
return nil, b.err
}
p, err := json.Marshal(b.payload)
if err != nil {
return nil, err
}
return b.sig.Sign(p)
}
func (b *encryptedBuilder) Claims(i interface{}) Builder {
return &encryptedBuilder{
builder: b.builder.claims(i),
enc: b.enc,
}
}
func (b *encryptedBuilder) CompactSerialize() (string, error) {
enc, err := b.encrypt()
if err != nil {
return "", err
}
return enc.CompactSerialize()
}
func (b *encryptedBuilder) FullSerialize() (string, error) {
enc, err := b.encrypt()
if err != nil {
return "", err
}
return enc.FullSerialize(), nil
}
func (b *encryptedBuilder) Token() (*JSONWebToken, error) {
enc, err := b.encrypt()
if err != nil {
return nil, err
}
return b.builder.token(enc.Decrypt, []jose.Header{enc.Header})
}
func (b *encryptedBuilder) encrypt() (*jose.JSONWebEncryption, error) {
if b.err != nil {
return nil, b.err
}
p, err := json.Marshal(b.payload)
if err != nil {
return nil, err
}
return b.enc.Encrypt(p)
}
func (b *nestedBuilder) Claims(i interface{}) NestedBuilder {
return &nestedBuilder{
builder: b.builder.claims(i),
sig: b.sig,
enc: b.enc,
}
}
func (b *nestedBuilder) Token() (*NestedJSONWebToken, error) {
enc, err := b.signAndEncrypt()
if err != nil {
return nil, err
}
return &NestedJSONWebToken{
enc: enc,
Headers: []jose.Header{enc.Header},
}, nil
}
func (b *nestedBuilder) CompactSerialize() (string, error) {
enc, err := b.signAndEncrypt()
if err != nil {
return "", err
}
return enc.CompactSerialize()
}
func (b *nestedBuilder) FullSerialize() (string, error) {
enc, err := b.signAndEncrypt()
if err != nil {
return "", err
}
return enc.FullSerialize(), nil
}
func (b *nestedBuilder) signAndEncrypt() (*jose.JSONWebEncryption, error) {
if b.err != nil {
return nil, b.err
}
p, err := json.Marshal(b.payload)
if err != nil {
return nil, err
}
sig, err := b.sig.Sign(p)
if err != nil {
return nil, err
}
p2, err := sig.CompactSerialize()
if err != nil {
return nil, err
}
return b.enc.Encrypt([]byte(p2))
}

115
vendor/gopkg.in/square/go-jose.v2/jwt/claims.go generated vendored Normal file
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/*-
* Copyright 2016 Zbigniew Mandziejewicz
* Copyright 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jwt
import (
"encoding/json"
"strconv"
"time"
)
// Claims represents public claim values (as specified in RFC 7519).
type Claims struct {
Issuer string `json:"iss,omitempty"`
Subject string `json:"sub,omitempty"`
Audience Audience `json:"aud,omitempty"`
Expiry NumericDate `json:"exp,omitempty"`
NotBefore NumericDate `json:"nbf,omitempty"`
IssuedAt NumericDate `json:"iat,omitempty"`
ID string `json:"jti,omitempty"`
}
// NumericDate represents date and time as the number of seconds since the
// epoch, including leap seconds. Non-integer values can be represented
// in the serialized format, but we round to the nearest second.
type NumericDate int64
// NewNumericDate constructs NumericDate from time.Time value.
func NewNumericDate(t time.Time) NumericDate {
if t.IsZero() {
return NumericDate(0)
}
// While RFC 7519 technically states that NumericDate values may be
// non-integer values, we don't bother serializing timestamps in
// claims with sub-second accurancy and just round to the nearest
// second instead. Not convined sub-second accuracy is useful here.
return NumericDate(t.Unix())
}
// MarshalJSON serializes the given NumericDate into its JSON representation.
func (n NumericDate) MarshalJSON() ([]byte, error) {
return []byte(strconv.FormatInt(int64(n), 10)), nil
}
// UnmarshalJSON reads a date from its JSON representation.
func (n *NumericDate) UnmarshalJSON(b []byte) error {
s := string(b)
f, err := strconv.ParseFloat(s, 64)
if err != nil {
return ErrUnmarshalNumericDate
}
*n = NumericDate(f)
return nil
}
// Time returns time.Time representation of NumericDate.
func (n NumericDate) Time() time.Time {
return time.Unix(int64(n), 0)
}
// Audience represents the recipents that the token is intended for.
type Audience []string
// UnmarshalJSON reads an audience from its JSON representation.
func (s *Audience) UnmarshalJSON(b []byte) error {
var v interface{}
if err := json.Unmarshal(b, &v); err != nil {
return err
}
switch v := v.(type) {
case string:
*s = []string{v}
case []interface{}:
a := make([]string, len(v))
for i, e := range v {
s, ok := e.(string)
if !ok {
return ErrUnmarshalAudience
}
a[i] = s
}
*s = a
default:
return ErrUnmarshalAudience
}
return nil
}
func (s Audience) Contains(v string) bool {
for _, a := range s {
if a == v {
return true
}
}
return false
}

22
vendor/gopkg.in/square/go-jose.v2/jwt/doc.go generated vendored Normal file
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/*-
* Copyright 2017 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
Package jwt provides an implementation of the JSON Web Token standard.
*/
package jwt

50
vendor/gopkg.in/square/go-jose.v2/jwt/errors.go generated vendored Normal file
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/*-
* Copyright 2016 Zbigniew Mandziejewicz
* Copyright 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jwt
import "errors"
// ErrUnmarshalAudience indicates that aud claim could not be unmarshalled.
var ErrUnmarshalAudience = errors.New("square/go-jose/jwt: expected string or array value to unmarshal to Audience")
// ErrUnmarshalNumericDate indicates that JWT NumericDate could not be unmarshalled.
var ErrUnmarshalNumericDate = errors.New("square/go-jose/jwt: expected number value to unmarshal NumericDate")
// ErrInvalidClaims indicates that given claims have invalid type.
var ErrInvalidClaims = errors.New("square/go-jose/jwt: expected claims to be value convertible into JSON object")
// ErrInvalidIssuer indicates invalid iss claim.
var ErrInvalidIssuer = errors.New("square/go-jose/jwt: validation failed, invalid issuer claim (iss)")
// ErrInvalidSubject indicates invalid sub claim.
var ErrInvalidSubject = errors.New("square/go-jose/jwt: validation failed, invalid subject claim (sub)")
// ErrInvalidAudience indicated invalid aud claim.
var ErrInvalidAudience = errors.New("square/go-jose/jwt: validation failed, invalid audience claim (aud)")
// ErrInvalidID indicates invalid jti claim.
var ErrInvalidID = errors.New("square/go-jose/jwt: validation failed, invalid ID claim (jti)")
// ErrNotValidYet indicates that token is used before time indicated in nbf claim.
var ErrNotValidYet = errors.New("square/go-jose/jwt: validation failed, token not valid yet (nbf)")
// ErrExpired indicates that token is used after expiry time indicated in exp claim.
var ErrExpired = errors.New("square/go-jose/jwt: validation failed, token is expired (exp)")
// ErrInvalidContentType indicated that token requires JWT cty header.
var ErrInvalidContentType = errors.New("square/go-jose/jwt: expected content type to be JWT (cty header)")

113
vendor/gopkg.in/square/go-jose.v2/jwt/jwt.go generated vendored Normal file
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/*-
* Copyright 2016 Zbigniew Mandziejewicz
* Copyright 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jwt
import (
"gopkg.in/square/go-jose.v2"
"gopkg.in/square/go-jose.v2/json"
"strings"
)
// JSONWebToken represents a JSON Web Token (as specified in RFC7519).
type JSONWebToken struct {
payload func(k interface{}) ([]byte, error)
Headers []jose.Header
}
type NestedJSONWebToken struct {
enc *jose.JSONWebEncryption
Headers []jose.Header
}
// Claims deserializes a JSONWebToken into dest using the provided key.
func (t *JSONWebToken) Claims(key interface{}, dest ...interface{}) error {
b, err := t.payload(key)
if err != nil {
return err
}
for _, d := range dest {
if err := json.Unmarshal(b, d); err != nil {
return err
}
}
return nil
}
func (t *NestedJSONWebToken) Decrypt(decryptionKey interface{}) (*JSONWebToken, error) {
b, err := t.enc.Decrypt(decryptionKey)
if err != nil {
return nil, err
}
sig, err := ParseSigned(string(b))
if err != nil {
return nil, err
}
return sig, nil
}
// ParseSigned parses token from JWS form.
func ParseSigned(s string) (*JSONWebToken, error) {
sig, err := jose.ParseSigned(s)
if err != nil {
return nil, err
}
headers := make([]jose.Header, len(sig.Signatures))
for i, signature := range sig.Signatures {
headers[i] = signature.Header
}
return &JSONWebToken{
payload: sig.Verify,
Headers: headers,
}, nil
}
// ParseEncrypted parses token from JWE form.
func ParseEncrypted(s string) (*JSONWebToken, error) {
enc, err := jose.ParseEncrypted(s)
if err != nil {
return nil, err
}
return &JSONWebToken{
payload: enc.Decrypt,
Headers: []jose.Header{enc.Header},
}, nil
}
// ParseSignedAndEncrypted parses signed-then-encrypted token from JWE form.
func ParseSignedAndEncrypted(s string) (*NestedJSONWebToken, error) {
enc, err := jose.ParseEncrypted(s)
if err != nil {
return nil, err
}
contentType, _ := enc.Header.ExtraHeaders[jose.HeaderContentType].(string)
if strings.ToUpper(contentType) != "JWT" {
return nil, ErrInvalidContentType
}
return &NestedJSONWebToken{
enc: enc,
Headers: []jose.Header{enc.Header},
}, nil
}

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vendor/gopkg.in/square/go-jose.v2/jwt/validation.go generated vendored Normal file
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/*-
* Copyright 2016 Zbigniew Mandziejewicz
* Copyright 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jwt
import "time"
const (
// DefaultLeeway defines the default leeway for matching NotBefore/Expiry claims.
DefaultLeeway = 1.0 * time.Minute
)
// Expected defines values used for protected claims validation.
// If field has zero value then validation is skipped.
type Expected struct {
// Issuer matches the "iss" claim exactly.
Issuer string
// Subject matches the "sub" claim exactly.
Subject string
// Audience matches the values in "aud" claim, regardless of their order.
Audience Audience
// ID matches the "jti" claim exactly.
ID string
// Time matches the "exp" and "ebf" claims with leeway.
Time time.Time
}
// WithTime copies expectations with new time.
func (e Expected) WithTime(t time.Time) Expected {
e.Time = t
return e
}
// Validate checks claims in a token against expected values.
// A default leeway value of one minute is used to compare time values.
func (c Claims) Validate(e Expected) error {
return c.ValidateWithLeeway(e, DefaultLeeway)
}
// ValidateWithLeeway checks claims in a token against expected values. A
// custom leeway may be specified for comparing time values. You may pass a
// zero value to check time values with no leeway, but you should not that
// numeric date values are rounded to the nearest second and sub-second
// precision is not supported.
func (c Claims) ValidateWithLeeway(e Expected, leeway time.Duration) error {
if e.Issuer != "" && e.Issuer != c.Issuer {
return ErrInvalidIssuer
}
if e.Subject != "" && e.Subject != c.Subject {
return ErrInvalidSubject
}
if e.ID != "" && e.ID != c.ID {
return ErrInvalidID
}
if len(e.Audience) != 0 {
for _, v := range e.Audience {
if !c.Audience.Contains(v) {
return ErrInvalidAudience
}
}
}
if !e.Time.IsZero() && e.Time.Add(leeway).Before(c.NotBefore.Time()) {
return ErrNotValidYet
}
if !e.Time.IsZero() && e.Time.Add(-leeway).After(c.Expiry.Time()) {
return ErrExpired
}
return nil
}

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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto/elliptic"
"errors"
"fmt"
"gopkg.in/square/go-jose.v2/json"
)
// KeyAlgorithm represents a key management algorithm.
type KeyAlgorithm string
// SignatureAlgorithm represents a signature (or MAC) algorithm.
type SignatureAlgorithm string
// ContentEncryption represents a content encryption algorithm.
type ContentEncryption string
// CompressionAlgorithm represents an algorithm used for plaintext compression.
type CompressionAlgorithm string
// ContentType represents type of the contained data.
type ContentType string
var (
// ErrCryptoFailure represents an error in cryptographic primitive. This
// occurs when, for example, a message had an invalid authentication tag or
// could not be decrypted.
ErrCryptoFailure = errors.New("square/go-jose: error in cryptographic primitive")
// ErrUnsupportedAlgorithm indicates that a selected algorithm is not
// supported. This occurs when trying to instantiate an encrypter for an
// algorithm that is not yet implemented.
ErrUnsupportedAlgorithm = errors.New("square/go-jose: unknown/unsupported algorithm")
// ErrUnsupportedKeyType indicates that the given key type/format is not
// supported. This occurs when trying to instantiate an encrypter and passing
// it a key of an unrecognized type or with unsupported parameters, such as
// an RSA private key with more than two primes.
ErrUnsupportedKeyType = errors.New("square/go-jose: unsupported key type/format")
// ErrNotSupported serialization of object is not supported. This occurs when
// trying to compact-serialize an object which can't be represented in
// compact form.
ErrNotSupported = errors.New("square/go-jose: compact serialization not supported for object")
// ErrUnprotectedNonce indicates that while parsing a JWS or JWE object, a
// nonce header parameter was included in an unprotected header object.
ErrUnprotectedNonce = errors.New("square/go-jose: Nonce parameter included in unprotected header")
)
// Key management algorithms
const (
ED25519 = KeyAlgorithm("ED25519")
RSA1_5 = KeyAlgorithm("RSA1_5") // RSA-PKCS1v1.5
RSA_OAEP = KeyAlgorithm("RSA-OAEP") // RSA-OAEP-SHA1
RSA_OAEP_256 = KeyAlgorithm("RSA-OAEP-256") // RSA-OAEP-SHA256
A128KW = KeyAlgorithm("A128KW") // AES key wrap (128)
A192KW = KeyAlgorithm("A192KW") // AES key wrap (192)
A256KW = KeyAlgorithm("A256KW") // AES key wrap (256)
DIRECT = KeyAlgorithm("dir") // Direct encryption
ECDH_ES = KeyAlgorithm("ECDH-ES") // ECDH-ES
ECDH_ES_A128KW = KeyAlgorithm("ECDH-ES+A128KW") // ECDH-ES + AES key wrap (128)
ECDH_ES_A192KW = KeyAlgorithm("ECDH-ES+A192KW") // ECDH-ES + AES key wrap (192)
ECDH_ES_A256KW = KeyAlgorithm("ECDH-ES+A256KW") // ECDH-ES + AES key wrap (256)
A128GCMKW = KeyAlgorithm("A128GCMKW") // AES-GCM key wrap (128)
A192GCMKW = KeyAlgorithm("A192GCMKW") // AES-GCM key wrap (192)
A256GCMKW = KeyAlgorithm("A256GCMKW") // AES-GCM key wrap (256)
PBES2_HS256_A128KW = KeyAlgorithm("PBES2-HS256+A128KW") // PBES2 + HMAC-SHA256 + AES key wrap (128)
PBES2_HS384_A192KW = KeyAlgorithm("PBES2-HS384+A192KW") // PBES2 + HMAC-SHA384 + AES key wrap (192)
PBES2_HS512_A256KW = KeyAlgorithm("PBES2-HS512+A256KW") // PBES2 + HMAC-SHA512 + AES key wrap (256)
)
// Signature algorithms
const (
EdDSA = SignatureAlgorithm("EdDSA")
HS256 = SignatureAlgorithm("HS256") // HMAC using SHA-256
HS384 = SignatureAlgorithm("HS384") // HMAC using SHA-384
HS512 = SignatureAlgorithm("HS512") // HMAC using SHA-512
RS256 = SignatureAlgorithm("RS256") // RSASSA-PKCS-v1.5 using SHA-256
RS384 = SignatureAlgorithm("RS384") // RSASSA-PKCS-v1.5 using SHA-384
RS512 = SignatureAlgorithm("RS512") // RSASSA-PKCS-v1.5 using SHA-512
ES256 = SignatureAlgorithm("ES256") // ECDSA using P-256 and SHA-256
ES384 = SignatureAlgorithm("ES384") // ECDSA using P-384 and SHA-384
ES512 = SignatureAlgorithm("ES512") // ECDSA using P-521 and SHA-512
PS256 = SignatureAlgorithm("PS256") // RSASSA-PSS using SHA256 and MGF1-SHA256
PS384 = SignatureAlgorithm("PS384") // RSASSA-PSS using SHA384 and MGF1-SHA384
PS512 = SignatureAlgorithm("PS512") // RSASSA-PSS using SHA512 and MGF1-SHA512
)
// Content encryption algorithms
const (
A128CBC_HS256 = ContentEncryption("A128CBC-HS256") // AES-CBC + HMAC-SHA256 (128)
A192CBC_HS384 = ContentEncryption("A192CBC-HS384") // AES-CBC + HMAC-SHA384 (192)
A256CBC_HS512 = ContentEncryption("A256CBC-HS512") // AES-CBC + HMAC-SHA512 (256)
A128GCM = ContentEncryption("A128GCM") // AES-GCM (128)
A192GCM = ContentEncryption("A192GCM") // AES-GCM (192)
A256GCM = ContentEncryption("A256GCM") // AES-GCM (256)
)
// Compression algorithms
const (
NONE = CompressionAlgorithm("") // No compression
DEFLATE = CompressionAlgorithm("DEF") // DEFLATE (RFC 1951)
)
// A key in the protected header of a JWS object. Use of the Header...
// constants is preferred to enhance type safety.
type HeaderKey string
const (
HeaderType HeaderKey = "typ" // string
HeaderContentType = "cty" // string
// These are set by go-jose and shouldn't need to be set by consumers of the
// library.
headerAlgorithm = "alg" // string
headerEncryption = "enc" // ContentEncryption
headerCompression = "zip" // CompressionAlgorithm
headerCritical = "crit" // []string
headerAPU = "apu" // *byteBuffer
headerAPV = "apv" // *byteBuffer
headerEPK = "epk" // *JSONWebKey
headerIV = "iv" // *byteBuffer
headerTag = "tag" // *byteBuffer
headerJWK = "jwk" // *JSONWebKey
headerKeyID = "kid" // string
headerNonce = "nonce" // string
)
// rawHeader represents the JOSE header for JWE/JWS objects (used for parsing).
//
// The decoding of the constituent items is deferred because we want to marshal
// some members into particular structs rather than generic maps, but at the
// same time we need to receive any extra fields unhandled by this library to
// pass through to consuming code in case it wants to examine them.
type rawHeader map[HeaderKey]*json.RawMessage
// Header represents the read-only JOSE header for JWE/JWS objects.
type Header struct {
KeyID string
JSONWebKey *JSONWebKey
Algorithm string
Nonce string
// Any headers not recognised above get unmarshaled from JSON in a generic
// manner and placed in this map.
ExtraHeaders map[HeaderKey]interface{}
}
func (parsed rawHeader) set(k HeaderKey, v interface{}) error {
b, err := json.Marshal(v)
if err != nil {
return err
}
parsed[k] = makeRawMessage(b)
return nil
}
// getString gets a string from the raw JSON, defaulting to "".
func (parsed rawHeader) getString(k HeaderKey) string {
v, ok := parsed[k]
if !ok {
return ""
}
var s string
err := json.Unmarshal(*v, &s)
if err != nil {
return ""
}
return s
}
// getByteBuffer gets a byte buffer from the raw JSON. Returns (nil, nil) if
// not specified.
func (parsed rawHeader) getByteBuffer(k HeaderKey) (*byteBuffer, error) {
v := parsed[k]
if v == nil {
return nil, nil
}
var bb *byteBuffer
err := json.Unmarshal(*v, &bb)
if err != nil {
return nil, err
}
return bb, nil
}
// getAlgorithm extracts parsed "alg" from the raw JSON as a KeyAlgorithm.
func (parsed rawHeader) getAlgorithm() KeyAlgorithm {
return KeyAlgorithm(parsed.getString(headerAlgorithm))
}
// getSignatureAlgorithm extracts parsed "alg" from the raw JSON as a SignatureAlgorithm.
func (parsed rawHeader) getSignatureAlgorithm() SignatureAlgorithm {
return SignatureAlgorithm(parsed.getString(headerAlgorithm))
}
// getEncryption extracts parsed "enc" from the raw JSON.
func (parsed rawHeader) getEncryption() ContentEncryption {
return ContentEncryption(parsed.getString(headerEncryption))
}
// getCompression extracts parsed "zip" from the raw JSON.
func (parsed rawHeader) getCompression() CompressionAlgorithm {
return CompressionAlgorithm(parsed.getString(headerCompression))
}
func (parsed rawHeader) getNonce() string {
return parsed.getString(headerNonce)
}
// getEPK extracts parsed "epk" from the raw JSON.
func (parsed rawHeader) getEPK() (*JSONWebKey, error) {
v := parsed[headerEPK]
if v == nil {
return nil, nil
}
var epk *JSONWebKey
err := json.Unmarshal(*v, &epk)
if err != nil {
return nil, err
}
return epk, nil
}
// getAPU extracts parsed "apu" from the raw JSON.
func (parsed rawHeader) getAPU() (*byteBuffer, error) {
return parsed.getByteBuffer(headerAPU)
}
// getAPV extracts parsed "apv" from the raw JSON.
func (parsed rawHeader) getAPV() (*byteBuffer, error) {
return parsed.getByteBuffer(headerAPV)
}
// getIV extracts parsed "iv" frpom the raw JSON.
func (parsed rawHeader) getIV() (*byteBuffer, error) {
return parsed.getByteBuffer(headerIV)
}
// getTag extracts parsed "tag" frpom the raw JSON.
func (parsed rawHeader) getTag() (*byteBuffer, error) {
return parsed.getByteBuffer(headerTag)
}
// getJWK extracts parsed "jwk" from the raw JSON.
func (parsed rawHeader) getJWK() (*JSONWebKey, error) {
v := parsed[headerJWK]
if v == nil {
return nil, nil
}
var jwk *JSONWebKey
err := json.Unmarshal(*v, &jwk)
if err != nil {
return nil, err
}
return jwk, nil
}
// getCritical extracts parsed "crit" from the raw JSON. If omitted, it
// returns an empty slice.
func (parsed rawHeader) getCritical() ([]string, error) {
v := parsed[headerCritical]
if v == nil {
return nil, nil
}
var q []string
err := json.Unmarshal(*v, &q)
if err != nil {
return nil, err
}
return q, nil
}
// sanitized produces a cleaned-up header object from the raw JSON.
func (parsed rawHeader) sanitized() (h Header, err error) {
for k, v := range parsed {
if v == nil {
continue
}
switch k {
case headerJWK:
var jwk *JSONWebKey
err = json.Unmarshal(*v, &jwk)
if err != nil {
err = fmt.Errorf("failed to unmarshal JWK: %v: %#v", err, string(*v))
return
}
h.JSONWebKey = jwk
case headerKeyID:
var s string
err = json.Unmarshal(*v, &s)
if err != nil {
err = fmt.Errorf("failed to unmarshal key ID: %v: %#v", err, string(*v))
return
}
h.KeyID = s
case headerAlgorithm:
var s string
err = json.Unmarshal(*v, &s)
if err != nil {
err = fmt.Errorf("failed to unmarshal algorithm: %v: %#v", err, string(*v))
return
}
h.Algorithm = s
case headerNonce:
var s string
err = json.Unmarshal(*v, &s)
if err != nil {
err = fmt.Errorf("failed to unmarshal nonce: %v: %#v", err, string(*v))
return
}
h.Nonce = s
default:
if h.ExtraHeaders == nil {
h.ExtraHeaders = map[HeaderKey]interface{}{}
}
var v2 interface{}
err = json.Unmarshal(*v, &v2)
if err != nil {
err = fmt.Errorf("failed to unmarshal value: %v: %#v", err, string(*v))
return
}
h.ExtraHeaders[k] = v2
}
}
return
}
func (dst rawHeader) isSet(k HeaderKey) bool {
dvr := dst[k]
if dvr == nil {
return false
}
var dv interface{}
err := json.Unmarshal(*dvr, &dv)
if err != nil {
return true
}
if dvStr, ok := dv.(string); ok {
return dvStr != ""
}
return true
}
// Merge headers from src into dst, giving precedence to headers from l.
func (dst rawHeader) merge(src *rawHeader) {
if src == nil {
return
}
for k, v := range *src {
if dst.isSet(k) {
continue
}
dst[k] = v
}
}
// Get JOSE name of curve
func curveName(crv elliptic.Curve) (string, error) {
switch crv {
case elliptic.P256():
return "P-256", nil
case elliptic.P384():
return "P-384", nil
case elliptic.P521():
return "P-521", nil
default:
return "", fmt.Errorf("square/go-jose: unsupported/unknown elliptic curve")
}
}
// Get size of curve in bytes
func curveSize(crv elliptic.Curve) int {
bits := crv.Params().BitSize
div := bits / 8
mod := bits % 8
if mod == 0 {
return div
}
return div + 1
}
func makeRawMessage(b []byte) *json.RawMessage {
rm := json.RawMessage(b)
return &rm
}

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/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto/ecdsa"
"crypto/rsa"
"encoding/base64"
"errors"
"fmt"
"golang.org/x/crypto/ed25519"
"gopkg.in/square/go-jose.v2/json"
)
// NonceSource represents a source of random nonces to go into JWS objects
type NonceSource interface {
Nonce() (string, error)
}
// Signer represents a signer which takes a payload and produces a signed JWS object.
type Signer interface {
Sign(payload []byte) (*JSONWebSignature, error)
Options() SignerOptions
}
// SigningKey represents an algorithm/key used to sign a message.
type SigningKey struct {
Algorithm SignatureAlgorithm
Key interface{}
}
// SignerOptions represents options that can be set when creating signers.
type SignerOptions struct {
NonceSource NonceSource
EmbedJWK bool
// Optional map of additional keys to be inserted into the protected header
// of a JWS object. Some specifications which make use of JWS like to insert
// additional values here. All values must be JSON-serializable.
ExtraHeaders map[HeaderKey]interface{}
}
// WithHeader adds an arbitrary value to the ExtraHeaders map, initializing it
// if necessary. It returns itself and so can be used in a fluent style.
func (so *SignerOptions) WithHeader(k HeaderKey, v interface{}) *SignerOptions {
if so.ExtraHeaders == nil {
so.ExtraHeaders = map[HeaderKey]interface{}{}
}
so.ExtraHeaders[k] = v
return so
}
// WithContentType adds a content type ("cty") header and returns the updated
// SignerOptions.
func (so *SignerOptions) WithContentType(contentType ContentType) *SignerOptions {
return so.WithHeader(HeaderContentType, contentType)
}
// WithType adds a type ("typ") header and returns the updated SignerOptions.
func (so *SignerOptions) WithType(typ ContentType) *SignerOptions {
return so.WithHeader(HeaderType, typ)
}
type payloadSigner interface {
signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error)
}
type payloadVerifier interface {
verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error
}
type genericSigner struct {
recipients []recipientSigInfo
nonceSource NonceSource
embedJWK bool
extraHeaders map[HeaderKey]interface{}
}
type recipientSigInfo struct {
sigAlg SignatureAlgorithm
publicKey *JSONWebKey
signer payloadSigner
}
// NewSigner creates an appropriate signer based on the key type
func NewSigner(sig SigningKey, opts *SignerOptions) (Signer, error) {
return NewMultiSigner([]SigningKey{sig}, opts)
}
// NewMultiSigner creates a signer for multiple recipients
func NewMultiSigner(sigs []SigningKey, opts *SignerOptions) (Signer, error) {
signer := &genericSigner{recipients: []recipientSigInfo{}}
if opts != nil {
signer.nonceSource = opts.NonceSource
signer.embedJWK = opts.EmbedJWK
signer.extraHeaders = opts.ExtraHeaders
}
for _, sig := range sigs {
err := signer.addRecipient(sig.Algorithm, sig.Key)
if err != nil {
return nil, err
}
}
return signer, nil
}
// newVerifier creates a verifier based on the key type
func newVerifier(verificationKey interface{}) (payloadVerifier, error) {
switch verificationKey := verificationKey.(type) {
case ed25519.PublicKey:
return &edEncrypterVerifier{
publicKey: verificationKey,
}, nil
case *rsa.PublicKey:
return &rsaEncrypterVerifier{
publicKey: verificationKey,
}, nil
case *ecdsa.PublicKey:
return &ecEncrypterVerifier{
publicKey: verificationKey,
}, nil
case []byte:
return &symmetricMac{
key: verificationKey,
}, nil
case JSONWebKey:
return newVerifier(verificationKey.Key)
case *JSONWebKey:
return newVerifier(verificationKey.Key)
default:
return nil, ErrUnsupportedKeyType
}
}
func (ctx *genericSigner) addRecipient(alg SignatureAlgorithm, signingKey interface{}) error {
recipient, err := makeJWSRecipient(alg, signingKey)
if err != nil {
return err
}
ctx.recipients = append(ctx.recipients, recipient)
return nil
}
func makeJWSRecipient(alg SignatureAlgorithm, signingKey interface{}) (recipientSigInfo, error) {
switch signingKey := signingKey.(type) {
case ed25519.PrivateKey:
return newEd25519Signer(alg, signingKey)
case *rsa.PrivateKey:
return newRSASigner(alg, signingKey)
case *ecdsa.PrivateKey:
return newECDSASigner(alg, signingKey)
case []byte:
return newSymmetricSigner(alg, signingKey)
case JSONWebKey:
return newJWKSigner(alg, signingKey)
case *JSONWebKey:
return newJWKSigner(alg, *signingKey)
default:
return recipientSigInfo{}, ErrUnsupportedKeyType
}
}
func newJWKSigner(alg SignatureAlgorithm, signingKey JSONWebKey) (recipientSigInfo, error) {
recipient, err := makeJWSRecipient(alg, signingKey.Key)
if err != nil {
return recipientSigInfo{}, err
}
if recipient.publicKey != nil {
// recipient.publicKey is a JWK synthesized for embedding when recipientSigInfo
// was created for the inner key (such as a RSA or ECDSA public key). It contains
// the pub key for embedding, but doesn't have extra params like key id.
publicKey := signingKey
publicKey.Key = recipient.publicKey.Key
recipient.publicKey = &publicKey
// This should be impossible, but let's check anyway.
if !recipient.publicKey.IsPublic() {
return recipientSigInfo{}, errors.New("square/go-jose: public key was unexpectedly not public")
}
}
return recipient, nil
}
func (ctx *genericSigner) Sign(payload []byte) (*JSONWebSignature, error) {
obj := &JSONWebSignature{}
obj.payload = payload
obj.Signatures = make([]Signature, len(ctx.recipients))
for i, recipient := range ctx.recipients {
protected := map[HeaderKey]interface{}{
headerAlgorithm: string(recipient.sigAlg),
}
if recipient.publicKey != nil {
// We want to embed the JWK or set the kid header, but not both. Having a protected
// header that contains an embedded JWK while also simultaneously containing the kid
// header is confusing, and at least in ACME the two are considered to be mutually
// exclusive. The fact that both can exist at the same time is a somewhat unfortunate
// result of the JOSE spec. We've decided that this library will only include one or
// the other to avoid this confusion.
//
// See https://github.com/square/go-jose/issues/157 for more context.
if ctx.embedJWK {
protected[headerJWK] = recipient.publicKey
} else {
protected[headerKeyID] = recipient.publicKey.KeyID
}
}
if ctx.nonceSource != nil {
nonce, err := ctx.nonceSource.Nonce()
if err != nil {
return nil, fmt.Errorf("square/go-jose: Error generating nonce: %v", err)
}
protected[headerNonce] = nonce
}
for k, v := range ctx.extraHeaders {
protected[k] = v
}
serializedProtected := mustSerializeJSON(protected)
input := []byte(fmt.Sprintf("%s.%s",
base64.RawURLEncoding.EncodeToString(serializedProtected),
base64.RawURLEncoding.EncodeToString(payload)))
signatureInfo, err := recipient.signer.signPayload(input, recipient.sigAlg)
if err != nil {
return nil, err
}
signatureInfo.protected = &rawHeader{}
for k, v := range protected {
b, err := json.Marshal(v)
if err != nil {
return nil, fmt.Errorf("square/go-jose: Error marshalling item %#v: %v", k, err)
}
(*signatureInfo.protected)[k] = makeRawMessage(b)
}
obj.Signatures[i] = signatureInfo
}
return obj, nil
}
func (ctx *genericSigner) Options() SignerOptions {
return SignerOptions{
NonceSource: ctx.nonceSource,
EmbedJWK: ctx.embedJWK,
ExtraHeaders: ctx.extraHeaders,
}
}
// Verify validates the signature on the object and returns the payload.
// This function does not support multi-signature, if you desire multi-sig
// verification use VerifyMulti instead.
//
// Be careful when verifying signatures based on embedded JWKs inside the
// payload header. You cannot assume that the key received in a payload is
// trusted.
func (obj JSONWebSignature) Verify(verificationKey interface{}) ([]byte, error) {
verifier, err := newVerifier(verificationKey)
if err != nil {
return nil, err
}
if len(obj.Signatures) > 1 {
return nil, errors.New("square/go-jose: too many signatures in payload; expecting only one")
}
signature := obj.Signatures[0]
headers := signature.mergedHeaders()
critical, err := headers.getCritical()
if err != nil {
return nil, err
}
if len(critical) > 0 {
// Unsupported crit header
return nil, ErrCryptoFailure
}
input := obj.computeAuthData(&signature)
alg := headers.getSignatureAlgorithm()
err = verifier.verifyPayload(input, signature.Signature, alg)
if err == nil {
return obj.payload, nil
}
return nil, ErrCryptoFailure
}
// VerifyMulti validates (one of the multiple) signatures on the object and
// returns the index of the signature that was verified, along with the signature
// object and the payload. We return the signature and index to guarantee that
// callers are getting the verified value.
func (obj JSONWebSignature) VerifyMulti(verificationKey interface{}) (int, Signature, []byte, error) {
verifier, err := newVerifier(verificationKey)
if err != nil {
return -1, Signature{}, nil, err
}
for i, signature := range obj.Signatures {
headers := signature.mergedHeaders()
critical, err := headers.getCritical()
if err != nil {
continue
}
if len(critical) > 0 {
// Unsupported crit header
continue
}
input := obj.computeAuthData(&signature)
alg := headers.getSignatureAlgorithm()
err = verifier.verifyPayload(input, signature.Signature, alg)
if err == nil {
return i, signature, obj.payload, nil
}
}
return -1, Signature{}, nil, ErrCryptoFailure
}

360
vendor/gopkg.in/square/go-jose.v2/symmetric.go generated vendored Normal file
View file

@ -0,0 +1,360 @@
/*-
* Copyright 2014 Square Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jose
import (
"crypto/aes"
"crypto/cipher"
"crypto/hmac"
"crypto/rand"
"crypto/sha256"
"crypto/sha512"
"crypto/subtle"
"errors"
"fmt"
"hash"
"io"
"gopkg.in/square/go-jose.v2/cipher"
)
// Random reader (stubbed out in tests)
var randReader = rand.Reader
// Dummy key cipher for shared symmetric key mode
type symmetricKeyCipher struct {
key []byte // Pre-shared content-encryption key
}
// Signer/verifier for MAC modes
type symmetricMac struct {
key []byte
}
// Input/output from an AEAD operation
type aeadParts struct {
iv, ciphertext, tag []byte
}
// A content cipher based on an AEAD construction
type aeadContentCipher struct {
keyBytes int
authtagBytes int
getAead func(key []byte) (cipher.AEAD, error)
}
// Random key generator
type randomKeyGenerator struct {
size int
}
// Static key generator
type staticKeyGenerator struct {
key []byte
}
// Create a new content cipher based on AES-GCM
func newAESGCM(keySize int) contentCipher {
return &aeadContentCipher{
keyBytes: keySize,
authtagBytes: 16,
getAead: func(key []byte) (cipher.AEAD, error) {
aes, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
return cipher.NewGCM(aes)
},
}
}
// Create a new content cipher based on AES-CBC+HMAC
func newAESCBC(keySize int) contentCipher {
return &aeadContentCipher{
keyBytes: keySize * 2,
authtagBytes: 16,
getAead: func(key []byte) (cipher.AEAD, error) {
return josecipher.NewCBCHMAC(key, aes.NewCipher)
},
}
}
// Get an AEAD cipher object for the given content encryption algorithm
func getContentCipher(alg ContentEncryption) contentCipher {
switch alg {
case A128GCM:
return newAESGCM(16)
case A192GCM:
return newAESGCM(24)
case A256GCM:
return newAESGCM(32)
case A128CBC_HS256:
return newAESCBC(16)
case A192CBC_HS384:
return newAESCBC(24)
case A256CBC_HS512:
return newAESCBC(32)
default:
return nil
}
}
// newSymmetricRecipient creates a JWE encrypter based on AES-GCM key wrap.
func newSymmetricRecipient(keyAlg KeyAlgorithm, key []byte) (recipientKeyInfo, error) {
switch keyAlg {
case DIRECT, A128GCMKW, A192GCMKW, A256GCMKW, A128KW, A192KW, A256KW:
default:
return recipientKeyInfo{}, ErrUnsupportedAlgorithm
}
return recipientKeyInfo{
keyAlg: keyAlg,
keyEncrypter: &symmetricKeyCipher{
key: key,
},
}, nil
}
// newSymmetricSigner creates a recipientSigInfo based on the given key.
func newSymmetricSigner(sigAlg SignatureAlgorithm, key []byte) (recipientSigInfo, error) {
// Verify that key management algorithm is supported by this encrypter
switch sigAlg {
case HS256, HS384, HS512:
default:
return recipientSigInfo{}, ErrUnsupportedAlgorithm
}
return recipientSigInfo{
sigAlg: sigAlg,
signer: &symmetricMac{
key: key,
},
}, nil
}
// Generate a random key for the given content cipher
func (ctx randomKeyGenerator) genKey() ([]byte, rawHeader, error) {
key := make([]byte, ctx.size)
_, err := io.ReadFull(randReader, key)
if err != nil {
return nil, rawHeader{}, err
}
return key, rawHeader{}, nil
}
// Key size for random generator
func (ctx randomKeyGenerator) keySize() int {
return ctx.size
}
// Generate a static key (for direct mode)
func (ctx staticKeyGenerator) genKey() ([]byte, rawHeader, error) {
cek := make([]byte, len(ctx.key))
copy(cek, ctx.key)
return cek, rawHeader{}, nil
}
// Key size for static generator
func (ctx staticKeyGenerator) keySize() int {
return len(ctx.key)
}
// Get key size for this cipher
func (ctx aeadContentCipher) keySize() int {
return ctx.keyBytes
}
// Encrypt some data
func (ctx aeadContentCipher) encrypt(key, aad, pt []byte) (*aeadParts, error) {
// Get a new AEAD instance
aead, err := ctx.getAead(key)
if err != nil {
return nil, err
}
// Initialize a new nonce
iv := make([]byte, aead.NonceSize())
_, err = io.ReadFull(randReader, iv)
if err != nil {
return nil, err
}
ciphertextAndTag := aead.Seal(nil, iv, pt, aad)
offset := len(ciphertextAndTag) - ctx.authtagBytes
return &aeadParts{
iv: iv,
ciphertext: ciphertextAndTag[:offset],
tag: ciphertextAndTag[offset:],
}, nil
}
// Decrypt some data
func (ctx aeadContentCipher) decrypt(key, aad []byte, parts *aeadParts) ([]byte, error) {
aead, err := ctx.getAead(key)
if err != nil {
return nil, err
}
return aead.Open(nil, parts.iv, append(parts.ciphertext, parts.tag...), aad)
}
// Encrypt the content encryption key.
func (ctx *symmetricKeyCipher) encryptKey(cek []byte, alg KeyAlgorithm) (recipientInfo, error) {
switch alg {
case DIRECT:
return recipientInfo{
header: &rawHeader{},
}, nil
case A128GCMKW, A192GCMKW, A256GCMKW:
aead := newAESGCM(len(ctx.key))
parts, err := aead.encrypt(ctx.key, []byte{}, cek)
if err != nil {
return recipientInfo{}, err
}
header := &rawHeader{}
header.set(headerIV, newBuffer(parts.iv))
header.set(headerTag, newBuffer(parts.tag))
return recipientInfo{
header: header,
encryptedKey: parts.ciphertext,
}, nil
case A128KW, A192KW, A256KW:
block, err := aes.NewCipher(ctx.key)
if err != nil {
return recipientInfo{}, err
}
jek, err := josecipher.KeyWrap(block, cek)
if err != nil {
return recipientInfo{}, err
}
return recipientInfo{
encryptedKey: jek,
header: &rawHeader{},
}, nil
}
return recipientInfo{}, ErrUnsupportedAlgorithm
}
// Decrypt the content encryption key.
func (ctx *symmetricKeyCipher) decryptKey(headers rawHeader, recipient *recipientInfo, generator keyGenerator) ([]byte, error) {
switch headers.getAlgorithm() {
case DIRECT:
cek := make([]byte, len(ctx.key))
copy(cek, ctx.key)
return cek, nil
case A128GCMKW, A192GCMKW, A256GCMKW:
aead := newAESGCM(len(ctx.key))
iv, err := headers.getIV()
if err != nil {
return nil, fmt.Errorf("square/go-jose: invalid IV: %v", err)
}
tag, err := headers.getTag()
if err != nil {
return nil, fmt.Errorf("square/go-jose: invalid tag: %v", err)
}
parts := &aeadParts{
iv: iv.bytes(),
ciphertext: recipient.encryptedKey,
tag: tag.bytes(),
}
cek, err := aead.decrypt(ctx.key, []byte{}, parts)
if err != nil {
return nil, err
}
return cek, nil
case A128KW, A192KW, A256KW:
block, err := aes.NewCipher(ctx.key)
if err != nil {
return nil, err
}
cek, err := josecipher.KeyUnwrap(block, recipient.encryptedKey)
if err != nil {
return nil, err
}
return cek, nil
}
return nil, ErrUnsupportedAlgorithm
}
// Sign the given payload
func (ctx symmetricMac) signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error) {
mac, err := ctx.hmac(payload, alg)
if err != nil {
return Signature{}, errors.New("square/go-jose: failed to compute hmac")
}
return Signature{
Signature: mac,
protected: &rawHeader{},
}, nil
}
// Verify the given payload
func (ctx symmetricMac) verifyPayload(payload []byte, mac []byte, alg SignatureAlgorithm) error {
expected, err := ctx.hmac(payload, alg)
if err != nil {
return errors.New("square/go-jose: failed to compute hmac")
}
if len(mac) != len(expected) {
return errors.New("square/go-jose: invalid hmac")
}
match := subtle.ConstantTimeCompare(mac, expected)
if match != 1 {
return errors.New("square/go-jose: invalid hmac")
}
return nil
}
// Compute the HMAC based on the given alg value
func (ctx symmetricMac) hmac(payload []byte, alg SignatureAlgorithm) ([]byte, error) {
var hash func() hash.Hash
switch alg {
case HS256:
hash = sha256.New
case HS384:
hash = sha512.New384
case HS512:
hash = sha512.New
default:
return nil, ErrUnsupportedAlgorithm
}
hmac := hmac.New(hash, ctx.key)
// According to documentation, Write() on hash never fails
_, _ = hmac.Write(payload)
return hmac.Sum(nil), nil
}

72
vendor/vendor.json vendored
View file

@ -21,38 +21,38 @@
{
"checksumSHA1": "AH7jcN7pvaPDU6UjHdpT081DDGk=",
"path": "cloud.google.com/go/compute/metadata",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "/ixPd+hSgsbAjBI/fPqmHtTFRM8=",
"path": "cloud.google.com/go/iam",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "vXPMGAHxvqWSpSFqqUfZBZS1dBo=",
"path": "cloud.google.com/go/internal",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "MCns2LLZtUZEx6JWyYBrcbSuTXg=",
"path": "cloud.google.com/go/internal/optional",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "P0DmgQq10tIKBxGrPwdOGXEGk0A=",
"path": "cloud.google.com/go/internal/version",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "QHbGgo+9M+l/RmOV1EA2p/miarI=",
"path": "cloud.google.com/go/storage",
"revision": "a0438a757b4fb67653a453baa844ac9630b4a4be",
"revisionTime": "2017-09-15T02:54:18Z"
"revision": "58d5b92c85a97c78b82bdcb43e8d192c4ab0a239",
"revisionTime": "2017-09-08T12:01:57Z"
},
{
"checksumSHA1": "ayQzpLsnDmiaVeKWQeySiIvAjiA=",
@ -1057,16 +1057,16 @@
"revisionTime": "2017-09-02T04:25:43Z"
},
{
"checksumSHA1": "zUnavZDfX7KQQ2s/hHKG6T3zzlc=",
"checksumSHA1": "J/+RffHqbSdOeI82+ysAJruyO9w=",
"path": "github.com/hashicorp/vault-plugin-auth-gcp/plugin",
"revision": "e0d34474f22c41c835f156b42e398d719919245b",
"revisionTime": "2017-09-15T04:14:02Z"
"revision": "a807a8507e636e40403455258ed25954ec254cad",
"revisionTime": "2017-09-15T19:03:59Z"
},
{
"checksumSHA1": "2Fk5xIPOoKD4Of9cUIQPKXb2htg=",
"checksumSHA1": "nrNcGdv/8Ut8ScFy3tQoY3dpQvs=",
"path": "github.com/hashicorp/vault-plugin-auth-gcp/plugin/util",
"revision": "e0d34474f22c41c835f156b42e398d719919245b",
"revisionTime": "2017-09-15T04:14:02Z"
"revision": "a807a8507e636e40403455258ed25954ec254cad",
"revisionTime": "2017-09-15T19:03:59Z"
},
{
"checksumSHA1": "ZhK6IO2XN81Y+3RAjTcVm1Ic7oU=",
@ -1560,6 +1560,12 @@
"revision": "1cbadb444a806fd9430d14ad08967ed91da4fa0a",
"revisionTime": "2017-09-13T19:45:57Z"
},
{
"checksumSHA1": "dzy9lJFRFg4ewapupNs5pbhJQxQ=",
"path": "google.golang.org/api/compute/v1",
"revision": "39c3dd417c5a443607650f18e829ad308da08dd2",
"revisionTime": "2017-09-15T00:03:48Z"
},
{
"checksumSHA1": "/y0saWnM+kTnSvZrNlvoNOgj0Uo=",
"path": "google.golang.org/api/gensupport",
@ -1602,6 +1608,12 @@
"revision": "39c3dd417c5a443607650f18e829ad308da08dd2",
"revisionTime": "2017-09-15T00:03:48Z"
},
{
"checksumSHA1": "1D3XnZy4TWLBstH2IzOHZHLS9HA=",
"path": "google.golang.org/api/oauth2/v2",
"revision": "39c3dd417c5a443607650f18e829ad308da08dd2",
"revisionTime": "2017-09-15T00:03:48Z"
},
{
"checksumSHA1": "Y3CG3ZFIYfF6AhvpiBMBAGcZMV4=",
"path": "google.golang.org/api/option",
@ -1866,6 +1878,30 @@
"revision": "a7951f7a8442f0e70d36e499ed4d744f00af2963",
"revisionTime": "2017-07-29T08:02:57Z"
},
{
"checksumSHA1": "Qq9iBb+/Hjnydxe0Ait/ouqX7yE=",
"path": "gopkg.in/square/go-jose.v2",
"revision": "f8f38de21b4dcd69d0413faf231983f5fd6634b1",
"revisionTime": "2017-09-13T18:28:36Z"
},
{
"checksumSHA1": "Ho5sr2GbiR8S35IRni7vC54d5Js=",
"path": "gopkg.in/square/go-jose.v2/cipher",
"revision": "f8f38de21b4dcd69d0413faf231983f5fd6634b1",
"revisionTime": "2017-09-13T18:28:36Z"
},
{
"checksumSHA1": "JFun0lWY9eqd80Js2iWsehu1gc4=",
"path": "gopkg.in/square/go-jose.v2/json",
"revision": "f8f38de21b4dcd69d0413faf231983f5fd6634b1",
"revisionTime": "2017-09-13T18:28:36Z"
},
{
"checksumSHA1": "36YSMA8/CXxaomaM6bXrq1Gt7Rs=",
"path": "gopkg.in/square/go-jose.v2/jwt",
"revision": "f8f38de21b4dcd69d0413faf231983f5fd6634b1",
"revisionTime": "2017-09-13T18:28:36Z"
},
{
"checksumSHA1": "RDJpJQwkF012L6m/2BJizyOksNw=",
"path": "gopkg.in/yaml.v2",