X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FUtil%2FLogger%2FStreamLogger.php;h=3031461061f3a20299d6f1204210bfc18317a92b;hb=d1435bef6144f517ae4392d200e2eb14114adf1c;hp=8d9ffec3873c4fe0126d5b038f1455bf254ef044;hpb=22f1983cc0c834f88f6a519e81c456a8a34d14cc;p=friendica.git

diff --git a/src/Util/Logger/StreamLogger.php b/src/Util/Logger/StreamLogger.php
index 8d9ffec387..3031461061 100644
--- a/src/Util/Logger/StreamLogger.php
+++ b/src/Util/Logger/StreamLogger.php
@@ -2,13 +2,14 @@
 
 namespace Friendica\Util\Logger;
 
+use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Introspection;
-use Friendica\Util\Profiler;
+use Psr\Log\LogLevel;
 
 /**
  * A Logger instance for logging into a stream (file, stdout, stderr)
  */
-class StreamLogger extends AbstractFriendicaLogger
+class StreamLogger extends AbstractLogger
 {
 	/**
 	 * The minimum loglevel at which this logger will be triggered
@@ -16,10 +17,79 @@ class StreamLogger extends AbstractFriendicaLogger
 	 */
 	private $logLevel;
 
-	public function __construct($channel, Introspection $introspection, Profiler $profiler, $level)
+	/**
+	 * The file URL of the stream (if needed)
+	 * @var string
+	 */
+	private $url;
+
+	/**
+	 * The stream, where the current logger is writing into
+	 * @var resource
+	 */
+	private $stream;
+
+	/**
+	 * The current process ID
+	 * @var int
+	 */
+	private $pid;
+
+	/**
+	 * An error message
+	 * @var string
+	 */
+	private $errorMessage;
+
+	/**
+	 * Translates LogLevel log levels to integer values
+	 * @var array
+	 */
+	private $levelToInt = [
+		LogLevel::EMERGENCY => 0,
+		LogLevel::ALERT     => 1,
+		LogLevel::CRITICAL  => 2,
+		LogLevel::ERROR     => 3,
+		LogLevel::WARNING   => 4,
+		LogLevel::NOTICE    => 5,
+		LogLevel::INFO      => 6,
+		LogLevel::DEBUG     => 7,
+	];
+
+	/**
+	 * {@inheritdoc}
+	 * @param string|resource $stream The stream to write with this logger (either a file or a stream, i.e. stdout)
+	 * @param string          $level  The minimum loglevel at which this logger will be triggered
+	 *
+	 * @throws \Exception
+	 */
+	public function __construct($channel, $stream, Introspection $introspection, $level = LogLevel::DEBUG)
+	{
+		parent::__construct($channel, $introspection);
+
+		if (is_resource($stream)) {
+			$this->stream = $stream;
+		} elseif (is_string($stream)) {
+			$this->url = $stream;
+		} else {
+			throw new \InvalidArgumentException('A stream must either be a resource or a string.');
+		}
+
+		$this->pid = getmypid();
+		if (array_key_exists($level, $this->levelToInt)) {
+			$this->logLevel = $this->levelToInt[$level];
+		} else {
+			throw new \InvalidArgumentException(sprintf('The level "%s" is not valid.', $level));
+		}
+	}
+
+	public function close()
 	{
-		parent::__construct($channel, $introspection, $profiler);
-		$this->logLevel = $level;
+		if ($this->url && is_resource($this->stream)) {
+			fclose($this->stream);
+		}
+
+		$this->stream = null;
 	}
 
 	/**
@@ -33,6 +103,95 @@ class StreamLogger extends AbstractFriendicaLogger
 	 */
 	protected function addEntry($level, $message, $context = [])
 	{
-		// TODO: Implement addEntry() method.
+		if (!array_key_exists($level, $this->levelToInt)) {
+			throw new \InvalidArgumentException(sprintf('The level "%s" is not valid.', $level));
+		}
+
+		$logLevel = $this->levelToInt[$level];
+
+		if ($logLevel > $this->logLevel) {
+			return;
+		}
+
+		$this->checkStream();
+
+		$formattedLog = $this->formatLog($level, $message, $context);
+		fwrite($this->stream, $formattedLog);
+	}
+
+	/**
+	 * Formats a log record for the syslog output
+	 *
+	 * @param int    $level   The loglevel/priority
+	 * @param string $message The message
+	 * @param array  $context The context of this call
+	 *
+	 * @return string the formatted syslog output
+	 */
+	private function formatLog($level, $message, $context = [])
+	{
+		$record = $this->introspection->getRecord();
+		$record = array_merge($record, ['uid' => $this->logUid, 'process_id' => $this->pid]);
+		$logMessage = '';
+
+		$logMessage .= DateTimeFormat::utcNow() . ' ';
+		$logMessage .= $this->channel . ' ';
+		$logMessage .= '[' . strtoupper($level) . ']: ';
+		$logMessage .= $this->psrInterpolate($message, $context) . ' ';
+		$logMessage .= @json_encode($context) . ' - ';
+		$logMessage .= @json_encode($record);
+		$logMessage .= PHP_EOL;
+
+		return $logMessage;
+	}
+
+	private function checkStream()
+	{
+		if (is_resource($this->stream)) {
+			return;
+		}
+
+		if (empty($this->url)) {
+			throw new \LogicException('Missing stream URL.');
+		}
+
+		$this->createDir();
+		set_error_handler([$this, 'customErrorHandler']);
+		$this->stream = fopen($this->url, 'ab');
+		restore_error_handler();
+
+		if (!is_resource($this->stream)) {
+			$this->stream = null;
+
+			throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: ' . $this->errorMessage, $this->url));
+		}
+	}
+
+	private function createDir()
+	{
+		$dirname = null;
+		$pos = strpos($this->url, '://');
+		if (!$pos) {
+			$dirname = dirname($this->url);
+		}
+
+		if (substr($this->url, 0, 7) === 'file://') {
+			$dirname = dirname(substr($this->url, 7));
+		}
+
+		if (isset($dirname) && !is_dir($dirname)) {
+			set_error_handler([$this, 'customErrorHandler']);
+			$status = mkdir($dirname, 0777, true);
+			restore_error_handler();
+
+			if (!$status && !is_dir($dirname)) {
+				throw new \UnexpectedValueException(sprintf('Directory "%s" cannot get created: ' . $this->errorMessage, $dirname));
+			}
+		}
+	}
+
+	private function customErrorHandler($code, $msg)
+	{
+		$this->errorMessage = preg_replace('{^(fopen|mkdir)\(.*?\): }', '', $msg);
 	}
 }