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<?php
class Logger_SQL implements Logger_Adapter {
private $pdo;
function log_error(int $errno, string $errstr, string $file, int $line, $context) {
// separate PDO connection object is used for logging
if (!$this->pdo) $this->pdo = Db::instance()->pdo_connect();
if ($this->pdo && get_schema_version() > 117) {
// limit context length, DOMDocument dumps entire XML in here sometimes, which may be huge
$context = mb_substr($context, 0, 8192);
$server_params = [
"Real IP" => "HTTP_X_REAL_IP",
"Forwarded For" => "HTTP_X_FORWARDED_FOR",
"Forwarded Protocol" => "HTTP_X_FORWARDED_PROTO",
"Remote IP" => "REMOTE_ADDR",
"Request URI" => "REQUEST_URI",
"User agent" => "HTTP_USER_AGENT",
];
foreach ($server_params as $n => $p) {
if (isset($_SERVER[$p]))
$context .= "\n$n: " . $_SERVER[$p];
}
// passed error message may contain invalid unicode characters, failing to insert an error here
// would break the execution entirely by generating an actual fatal error instead of a E_WARNING etc
$errstr = UConverter::transcode($errstr, 'UTF-8', 'UTF-8');
$context = UConverter::transcode($context, 'UTF-8', 'UTF-8');
// can't use $_SESSION["uid"] ?? null because what if its, for example, false? or zero?
// this would cause a PDOException on insert below
$owner_uid = !empty($_SESSION["uid"]) ? $_SESSION["uid"] : null;
$sth = $this->pdo->prepare("INSERT INTO ttrss_error_log
(errno, errstr, filename, lineno, context, owner_uid, created_at) VALUES
(?, ?, ?, ?, ?, ?, NOW())");
$sth->execute([$errno, $errstr, $file, (int)$line, $context, $owner_uid]);
return $sth->rowCount();
}
return false;
}
}
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