Fixes TLS error on WebRequests for endpoints using TLS 1.2

Fixes #86

lib/apis/Get-IcingaDirectorSelfServiceConfig.psm1

@@ -37,6 +37,7 @@ function Get-IcingaDirectorSelfServiceConfig()
         throw 'Please enter either a template or your host key. If this message persists, ensure your host is not having a template key assigned already. If so, you can try dropping it within the Icinga Director.';
     }
 
+    Set-IcingaTLSVersion;
     $ProgressPreference = "SilentlyContinue";
 
     $EndpointUrl = Join-WebPath -Path $DirectorUrl -ChildPath ([string]::Format('/self-service/powershell-parameters?key={0}', $ApiKey));

lib/apis/Get-IcingaDirectorSelfServiceTicket.psm1

@@ -38,6 +38,8 @@ function Get-IcingaDirectorSelfServiceTicket()
       return;
    }
 
+   Set-IcingaTLSVersion;
+
    [string]$url = Join-WebPath -Path $DirectorUrl -ChildPath ([string]::Format('/self-service/ticket?key={0}', $ApiKey));
 
    $response = Invoke-WebRequest -Uri $url -UseBasicParsing -Headers @{ 'accept' = 'application/json'; 'X-Director-Accept' = 'application/json' } -Method 'POST';

lib/apis/Register-IcingaDirectorSelfServiceHost.psm1

@@ -49,6 +49,7 @@ function Register-IcingaDirectorSelfServiceHost()
         throw 'Please enter the API key of the template you wish to use';
     }
 
+    Set-IcingaTLSVersion;
     $ProgressPreference = "SilentlyContinue";
     $DirectorConfigJson = $null;
 

lib/core/framework/Get-IcingaFrameworkServiceBinary.psm1

@@ -31,6 +31,7 @@ function Get-IcingaFrameworkServiceBinary()
         [string]$ServiceDirectory
     );
 
+    Set-IcingaTLSVersion;
     $ProgressPreference = "SilentlyContinue";
 
     if ([string]::IsNullOrEmpty($FrameworkServiceUrl)) {

lib/core/framework/Get-IcingaPowerShellModuleArchive.psm1

@@ -46,6 +46,7 @@ function Get-IcingaPowerShellModuleArchive()
         [bool]$DryRun        = $FALSE
     );
 
+    Set-IcingaTLSVersion;
     $ProgressPreference = "SilentlyContinue";
     $Tag                = 'master';
     [bool]$SkipRepo     = $FALSE;

lib/core/framework/Install-IcingaFrameworkComponent.psm1

@@ -51,6 +51,8 @@ function Install-IcingaFrameworkComponent()
         throw 'Please specify a component name to install from a GitHub/Local space';
     }
 
+    Set-IcingaTLSVersion;
+
     $TextInfo       = (Get-Culture).TextInfo;
     $ComponentName  = $TextInfo.ToTitleCase($Name);
     $RepositoryName = [string]::Format('icinga-powershell-{0}', $Name);

lib/core/icingaagent/getters/Get-IcingaAgentMSIPackage.psm1

@@ -14,6 +14,7 @@ function Get-IcingaAgentMSIPackage()
         throw 'Please specify a valid download URL, like "https://packages.icinga.com/windows/"';
     }
 
+    Set-IcingaTLSVersion;
     # Disable the progress bar for the WebRequest
     $ProgressPreference = "SilentlyContinue";
     $Architecture = Get-IcingaAgentArchitecture;

lib/core/icingaagent/installer/Install-IcingaAgentCertificates.psm1

@@ -214,6 +214,7 @@ function Copy-IcingaAgentCACertificate()
         Copy-Item -Path $CAPath -Destination (Join-Path -Path $Desination -ChildPath 'ca.crt') | Out-Null;
         Write-IcingaConsoleNotice ([string]::Format('Copied ca.crt from "{0}" to "{1}', $CAPath, $Desination));
     } else {
+        Set-IcingaTLSVersion;
         # It could also be a web ressource
         try {
             $response   = Invoke-WebRequest $CAPath -UseBasicParsing;

lib/web/Set-IcingaTLSVersion.psm1

@@ -0,0 +1,4 @@
+function Set-IcingaTLSVersion()
+{
+    [Net.ServicePointManager]::SecurityProtocol = "tls12, tls11";
+}