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Prevent log_query to mess up regular execution flow

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When the "log_query" debug config parameter is set, SQL queries are
logged. However, if an error occurs when converting the values to
string, it will abort the request.

This fix catches the error and continues instead.

Also added handler for DateTime value which is already known to cause
aborts here.

Signed-off-by: Vincent Petry <vincent@nextcloud.com>
This commit is contained in:
Vincent Petry 2020-12-02 14:10:35 +01:00
parent c1161e27b4
commit a50bcdabcc
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1 changed files with 26 additions and 18 deletions
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44
lib/private/DB/QueryBuilder/QueryBuilder.php
View file

@ -193,25 +193,33 @@ class QueryBuilder implements IQueryBuilder {
*/
public function execute() {
if ($this->systemConfig->getValue('log_query', false)) {
$params = [];
foreach ($this->getParameters() as $placeholder => $value) {
if (is_array($value)) {
$params[] = $placeholder . ' => (\'' . implode('\', \'', $value) . '\')';
} else {
$params[] = $placeholder . ' => \'' . $value . '\'';
try {
$params = [];
foreach ($this->getParameters() as $placeholder => $value) {
if ($value instanceof \DateTime) {
$params[] = $placeholder . ' => DateTime:\'' . $value->format('c') . '\'';
} elseif (is_array($value)) {
$params[] = $placeholder . ' => (\'' . implode('\', \'', $value) . '\')';
} else {
$params[] = $placeholder . ' => \'' . $value . '\'';
}
}
}
if (empty($params)) {
$this->logger->debug('DB QueryBuilder: \'{query}\'', [
'query' => $this->getSQL(),
'app' => 'core',
]);
} else {
$this->logger->debug('DB QueryBuilder: \'{query}\' with parameters: {params}', [
'query' => $this->getSQL(),
'params' => implode(', ', $params),
'app' => 'core',
]);
if (empty($params)) {
$this->logger->debug('DB QueryBuilder: \'{query}\'', [
'query' => $this->getSQL(),
'app' => 'core',
]);
} else {
$this->logger->debug('DB QueryBuilder: \'{query}\' with parameters: {params}', [
'query' => $this->getSQL(),
'params' => implode(', ', $params),
'app' => 'core',
]);
}
} catch (\Error $e) {
// likely an error during conversion of $value to string
$this->logger->debug('DB QueryBuilder: error trying to log SQL query');
$this->logger->logException($e);
}
}