nextcloud / server

lib/private/Log.php

Indentation +415 added lines, -415 removed lines

@@ -35,419 +35,419 @@
  * MonoLog is an example implementing this interface.
  */
 class Log implements ILogger, IDataLogger {
-	private ?bool $logConditionSatisfied = null;
-	private ?IEventDispatcher $eventDispatcher = null;
-	private int $nestingLevel = 0;
-
-	public function __construct(
-		private IWriter $logger,
-		private SystemConfig $config,
-		private Normalizer $normalizer = new Normalizer(),
-		private ?IRegistry $crashReporters = null,
-	) {
-	}
-
-	public function setEventDispatcher(IEventDispatcher $eventDispatcher): void {
-		$this->eventDispatcher = $eventDispatcher;
-	}
-
-	/**
-	 * System is unusable.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function emergency(string $message, array $context = []): void {
-		$this->log(ILogger::FATAL, $message, $context);
-	}
-
-	/**
-	 * Action must be taken immediately.
-	 *
-	 * Example: Entire website down, database unavailable, etc. This should
-	 * trigger the SMS alerts and wake you up.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function alert(string $message, array $context = []): void {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Critical conditions.
-	 *
-	 * Example: Application component unavailable, unexpected exception.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function critical(string $message, array $context = []): void {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Runtime errors that do not require immediate action but should typically
-	 * be logged and monitored.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function error(string $message, array $context = []): void {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Exceptional occurrences that are not errors.
-	 *
-	 * Example: Use of deprecated APIs, poor use of an API, undesirable things
-	 * that are not necessarily wrong.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function warning(string $message, array $context = []): void {
-		$this->log(ILogger::WARN, $message, $context);
-	}
-
-	/**
-	 * Normal but significant events.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function notice(string $message, array $context = []): void {
-		$this->log(ILogger::INFO, $message, $context);
-	}
-
-	/**
-	 * Interesting events.
-	 *
-	 * Example: User logs in, SQL logs.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function info(string $message, array $context = []): void {
-		$this->log(ILogger::INFO, $message, $context);
-	}
-
-	/**
-	 * Detailed debug information.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function debug(string $message, array $context = []): void {
-		$this->log(ILogger::DEBUG, $message, $context);
-	}
-
-
-	/**
-	 * Logs with an arbitrary level.
-	 *
-	 * @param int $level
-	 * @param string $message
-	 * @param array $context
-	 */
-	public function log(int $level, string $message, array $context = []): void {
-		$minLevel = $this->getLogLevel($context, $message);
-		if ($level < $minLevel
-			&& (($this->crashReporters?->hasReporters() ?? false) === false)
-			&& (($this->eventDispatcher?->hasListeners(BeforeMessageLoggedEvent::class) ?? false) === false)) {
-			return; // no crash reporter, no listeners, we can stop for lower log level
-		}
-
-		$context = array_map($this->normalizer->format(...), $context);
-
-		$app = $context['app'] ?? 'no app in context';
-		$entry = $this->interpolateMessage($context, $message);
-
-		$this->eventDispatcher?->dispatchTyped(new BeforeMessageLoggedEvent($app, $level, $entry));
-
-		$hasBacktrace = isset($entry['exception']);
-		$logBacktrace = $this->config->getValue('log.backtrace', false);
-		if (!$hasBacktrace && $logBacktrace) {
-			$entry['backtrace'] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
-		}
-
-		try {
-			if ($level >= $minLevel) {
-				$this->writeLog($app, $entry, $level);
-
-				if ($this->crashReporters !== null) {
-					$messageContext = array_merge(
-						$context,
-						[
-							'level' => $level
-						]
-					);
-					$this->crashReporters->delegateMessage($entry['message'], $messageContext);
-				}
-			} else {
-				$this->crashReporters?->delegateBreadcrumb($entry['message'], 'log', $context);
-			}
-		} catch (Throwable $e) {
-			// make sure we dont hard crash if logging fails
-		}
-	}
-
-	public function getLogLevel(array $context, string $message): int {
-		if ($this->nestingLevel > 1) {
-			return ILogger::WARN;
-		}
-
-		$this->nestingLevel++;
-		/**
-		 * @psalm-var array{
-		 *   shared_secret?: string,
-		 *   users?: string[],
-		 *   apps?: string[],
-		 *   matches?: array<array-key, array{
-		 *     shared_secret?: string,
-		 *     users?: string[],
-		 *     apps?: string[],
-		 *     message?: string,
-		 *     loglevel: 0|1|2|3|4,
-		 *   }>
-		 * } $logCondition
-		 */
-		$logCondition = $this->config->getValue('log.condition', []);
-
-		$userId = false;
-
-		/**
-		 * check for a special log condition - this enables an increased log on
-		 * a per request/user base
-		 */
-		if ($this->logConditionSatisfied === null) {
-			// default to false to just process this once per request
-			$this->logConditionSatisfied = false;
-			if (!empty($logCondition)) {
-				// check for secret token in the request
-				if (isset($logCondition['shared_secret']) && $this->checkLogSecret($logCondition['shared_secret'])) {
-					$this->logConditionSatisfied = true;
-				}
-
-				// check for user
-				if (isset($logCondition['users'])) {
-					$user = \OCP\Server::get(IUserSession::class)->getUser();
-
-					if ($user === null) {
-						// User is not known for this request yet
-						$this->logConditionSatisfied = null;
-					} elseif (in_array($user->getUID(), $logCondition['users'], true)) {
-						// if the user matches set the log condition to satisfied
-						$this->logConditionSatisfied = true;
-					} else {
-						$userId = $user->getUID();
-					}
-				}
-			}
-		}
-
-		// if log condition is satisfied change the required log level to DEBUG
-		if ($this->logConditionSatisfied) {
-			$this->nestingLevel--;
-			return ILogger::DEBUG;
-		}
-
-		if ($userId === false && isset($logCondition['matches'])) {
-			$user = \OCP\Server::get(IUserSession::class)->getUser();
-			$userId = $user === null ? false : $user->getUID();
-		}
-
-		if (isset($context['app'])) {
-			/**
-			 * check log condition based on the context of each log message
-			 * once this is met -> change the required log level to debug
-			 */
-			if (in_array($context['app'], $logCondition['apps'] ?? [], true)) {
-				$this->nestingLevel--;
-				return ILogger::DEBUG;
-			}
-		}
-
-		if (!isset($logCondition['matches'])) {
-			$configLogLevel = $this->config->getValue('loglevel', ILogger::WARN);
-			if (is_numeric($configLogLevel)) {
-				$this->nestingLevel--;
-				return min((int)$configLogLevel, ILogger::FATAL);
-			}
-
-			// Invalid configuration, warn the user and fall back to default level of WARN
-			error_log('Nextcloud configuration: "loglevel" is not a valid integer');
-			$this->nestingLevel--;
-			return ILogger::WARN;
-		}
-
-		foreach ($logCondition['matches'] as $option) {
-			if (
-				(!isset($option['shared_secret']) || $this->checkLogSecret($option['shared_secret']))
-				&& (!isset($option['users']) || in_array($userId, $option['users'], true))
-				&& (!isset($option['apps']) || (isset($context['app']) && in_array($context['app'], $option['apps'], true)))
-				&& (!isset($option['message']) || str_contains($message, $option['message']))
-			) {
-				if (!isset($option['apps']) && !isset($option['loglevel']) && !isset($option['message'])) {
-					/* Only user and/or secret are listed as conditions, we can cache the result for the rest of the request */
-					$this->logConditionSatisfied = true;
-					$this->nestingLevel--;
-					return ILogger::DEBUG;
-				}
-				$this->nestingLevel--;
-				return $option['loglevel'] ?? ILogger::DEBUG;
-			}
-		}
-
-		$this->nestingLevel--;
-		return ILogger::WARN;
-	}
-
-	protected function checkLogSecret(string $conditionSecret): bool {
-		$request = \OCP\Server::get(IRequest::class);
-
-		if ($request->getMethod() === 'PUT'
-			&& !str_contains($request->getHeader('Content-Type'), 'application/x-www-form-urlencoded')
-			&& !str_contains($request->getHeader('Content-Type'), 'application/json')) {
-			return hash_equals($conditionSecret, '');
-		}
-
-		// if token is found in the request change set the log condition to satisfied
-		return hash_equals($conditionSecret, $request->getParam('log_secret', ''));
-	}
-
-	/**
-	 * Logs an exception very detailed
-	 *
-	 * @param Exception|Throwable $exception
-	 * @param array $context
-	 * @return void
-	 * @since 8.2.0
-	 */
-	public function logException(Throwable $exception, array $context = []): void {
-		$app = $context['app'] ?? 'no app in context';
-		$level = $context['level'] ?? ILogger::ERROR;
-
-		$minLevel = $this->getLogLevel($context, $context['message'] ?? $exception->getMessage());
-		if ($level < $minLevel
-			&& (($this->crashReporters?->hasReporters() ?? false) === false)
-			&& (($this->eventDispatcher?->hasListeners(BeforeMessageLoggedEvent::class) ?? false) === false)) {
-			return; // no crash reporter, no listeners, we can stop for lower log level
-		}
-
-		// if an error is raised before the autoloader is properly setup, we can't serialize exceptions
-		try {
-			$serializer = $this->getSerializer();
-		} catch (Throwable $e) {
-			$this->error('Failed to load ExceptionSerializer serializer while trying to log ' . $exception->getMessage());
-			return;
-		}
-		$data = $context;
-		unset($data['app']);
-		unset($data['level']);
-		$data = array_merge($serializer->serializeException($exception), $data);
-		$data = $this->interpolateMessage($data, isset($context['message']) && $context['message'] !== '' ? $context['message'] : ('Exception thrown: ' . get_class($exception)), 'CustomMessage');
-
-		array_walk($context, [$this->normalizer, 'format']);
-
-		$this->eventDispatcher?->dispatchTyped(new BeforeMessageLoggedEvent($app, $level, $data));
-
-		try {
-			if ($level >= $minLevel) {
-				if (!$this->logger instanceof IFileBased) {
-					$data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
-				}
-				$this->writeLog($app, $data, $level);
-			}
-
-			$context['level'] = $level;
-			if (!is_null($this->crashReporters)) {
-				$this->crashReporters->delegateReport($exception, $context);
-			}
-		} catch (Throwable $e) {
-			// make sure we dont hard crash if logging fails
-		}
-	}
-
-	public function logData(string $message, array $data, array $context = []): void {
-		$app = $context['app'] ?? 'no app in context';
-		$level = $context['level'] ?? ILogger::ERROR;
-
-		$minLevel = $this->getLogLevel($context, $message);
-
-		array_walk($context, [$this->normalizer, 'format']);
-
-		try {
-			if ($level >= $minLevel) {
-				$data['message'] = $message;
-				if (!$this->logger instanceof IFileBased) {
-					$data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
-				}
-				$this->writeLog($app, $data, $level);
-			}
-
-			$context['level'] = $level;
-		} catch (Throwable $e) {
-			// make sure we dont hard crash if logging fails
-			error_log('Error when trying to log exception: ' . $e->getMessage() . ' ' . $e->getTraceAsString());
-		}
-	}
-
-	/**
-	 * @param string $app
-	 * @param string|array $entry
-	 * @param int $level
-	 */
-	protected function writeLog(string $app, $entry, int $level): void {
-		$this->logger->write($app, $entry, $level);
-	}
-
-	public function getLogPath():string {
-		if ($this->logger instanceof IFileBased) {
-			return $this->logger->getLogFilePath();
-		}
-		throw new \RuntimeException('Log implementation has no path');
-	}
-
-	/**
-	 * Interpolate $message as defined in PSR-3
-	 *
-	 * Returns an array containing the context without the interpolated
-	 * parameters placeholders and the message as the 'message' - or
-	 * user-defined - key.
-	 */
-	private function interpolateMessage(array $context, string $message, string $messageKey = 'message'): array {
-		$replace = [];
-		$usedContextKeys = [];
-		foreach ($context as $key => $val) {
-			$fullKey = '{' . $key . '}';
-			$replace[$fullKey] = $val;
-			if (str_contains($message, $fullKey)) {
-				$usedContextKeys[$key] = true;
-			}
-		}
-		return array_merge(array_diff_key($context, $usedContextKeys), [$messageKey => strtr($message, $replace)]);
-	}
-
-	/**
-	 * @throws Throwable
-	 */
-	protected function getSerializer(): ExceptionSerializer {
-		$serializer = new ExceptionSerializer($this->config);
-		try {
-			/** @var Coordinator $coordinator */
-			$coordinator = \OCP\Server::get(Coordinator::class);
-			foreach ($coordinator->getRegistrationContext()->getSensitiveMethods() as $registration) {
-				$serializer->enlistSensitiveMethods($registration->getName(), $registration->getValue());
-			}
-			// For not every app might be initialized at this time, we cannot assume that the return value
-			// of getSensitiveMethods() is complete. Running delegates in Coordinator::registerApps() is
-			// not possible due to dependencies on the one hand. On the other it would work only with
-			// adding public methods to the PsrLoggerAdapter and this class.
-			// Thus, serializer cannot be a property.
-		} catch (Throwable $t) {
-			// ignore app-defined sensitive methods in this case - they weren't loaded anyway
-		}
-		return $serializer;
-	}
+    private ?bool $logConditionSatisfied = null;
+    private ?IEventDispatcher $eventDispatcher = null;
+    private int $nestingLevel = 0;
+
+    public function __construct(
+        private IWriter $logger,
+        private SystemConfig $config,
+        private Normalizer $normalizer = new Normalizer(),
+        private ?IRegistry $crashReporters = null,
+    ) {
+    }
+
+    public function setEventDispatcher(IEventDispatcher $eventDispatcher): void {
+        $this->eventDispatcher = $eventDispatcher;
+    }
+
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function emergency(string $message, array $context = []): void {
+        $this->log(ILogger::FATAL, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function alert(string $message, array $context = []): void {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function critical(string $message, array $context = []): void {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function error(string $message, array $context = []): void {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function warning(string $message, array $context = []): void {
+        $this->log(ILogger::WARN, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function notice(string $message, array $context = []): void {
+        $this->log(ILogger::INFO, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function info(string $message, array $context = []): void {
+        $this->log(ILogger::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array $context
+     */
+    public function debug(string $message, array $context = []): void {
+        $this->log(ILogger::DEBUG, $message, $context);
+    }
+
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param int $level
+     * @param string $message
+     * @param array $context
+     */
+    public function log(int $level, string $message, array $context = []): void {
+        $minLevel = $this->getLogLevel($context, $message);
+        if ($level < $minLevel
+            && (($this->crashReporters?->hasReporters() ?? false) === false)
+            && (($this->eventDispatcher?->hasListeners(BeforeMessageLoggedEvent::class) ?? false) === false)) {
+            return; // no crash reporter, no listeners, we can stop for lower log level
+        }
+
+        $context = array_map($this->normalizer->format(...), $context);
+
+        $app = $context['app'] ?? 'no app in context';
+        $entry = $this->interpolateMessage($context, $message);
+
+        $this->eventDispatcher?->dispatchTyped(new BeforeMessageLoggedEvent($app, $level, $entry));
+
+        $hasBacktrace = isset($entry['exception']);
+        $logBacktrace = $this->config->getValue('log.backtrace', false);
+        if (!$hasBacktrace && $logBacktrace) {
+            $entry['backtrace'] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+        }
+
+        try {
+            if ($level >= $minLevel) {
+                $this->writeLog($app, $entry, $level);
+
+                if ($this->crashReporters !== null) {
+                    $messageContext = array_merge(
+                        $context,
+                        [
+                            'level' => $level
+                        ]
+                    );
+                    $this->crashReporters->delegateMessage($entry['message'], $messageContext);
+                }
+            } else {
+                $this->crashReporters?->delegateBreadcrumb($entry['message'], 'log', $context);
+            }
+        } catch (Throwable $e) {
+            // make sure we dont hard crash if logging fails
+        }
+    }
+
+    public function getLogLevel(array $context, string $message): int {
+        if ($this->nestingLevel > 1) {
+            return ILogger::WARN;
+        }
+
+        $this->nestingLevel++;
+        /**
+         * @psalm-var array{
+         *   shared_secret?: string,
+         *   users?: string[],
+         *   apps?: string[],
+         *   matches?: array<array-key, array{
+         *     shared_secret?: string,
+         *     users?: string[],
+         *     apps?: string[],
+         *     message?: string,
+         *     loglevel: 0|1|2|3|4,
+         *   }>
+         * } $logCondition
+         */
+        $logCondition = $this->config->getValue('log.condition', []);
+
+        $userId = false;
+
+        /**
+         * check for a special log condition - this enables an increased log on
+         * a per request/user base
+         */
+        if ($this->logConditionSatisfied === null) {
+            // default to false to just process this once per request
+            $this->logConditionSatisfied = false;
+            if (!empty($logCondition)) {
+                // check for secret token in the request
+                if (isset($logCondition['shared_secret']) && $this->checkLogSecret($logCondition['shared_secret'])) {
+                    $this->logConditionSatisfied = true;
+                }
+
+                // check for user
+                if (isset($logCondition['users'])) {
+                    $user = \OCP\Server::get(IUserSession::class)->getUser();
+
+                    if ($user === null) {
+                        // User is not known for this request yet
+                        $this->logConditionSatisfied = null;
+                    } elseif (in_array($user->getUID(), $logCondition['users'], true)) {
+                        // if the user matches set the log condition to satisfied
+                        $this->logConditionSatisfied = true;
+                    } else {
+                        $userId = $user->getUID();
+                    }
+                }
+            }
+        }
+
+        // if log condition is satisfied change the required log level to DEBUG
+        if ($this->logConditionSatisfied) {
+            $this->nestingLevel--;
+            return ILogger::DEBUG;
+        }
+
+        if ($userId === false && isset($logCondition['matches'])) {
+            $user = \OCP\Server::get(IUserSession::class)->getUser();
+            $userId = $user === null ? false : $user->getUID();
+        }
+
+        if (isset($context['app'])) {
+            /**
+             * check log condition based on the context of each log message
+             * once this is met -> change the required log level to debug
+             */
+            if (in_array($context['app'], $logCondition['apps'] ?? [], true)) {
+                $this->nestingLevel--;
+                return ILogger::DEBUG;
+            }
+        }
+
+        if (!isset($logCondition['matches'])) {
+            $configLogLevel = $this->config->getValue('loglevel', ILogger::WARN);
+            if (is_numeric($configLogLevel)) {
+                $this->nestingLevel--;
+                return min((int)$configLogLevel, ILogger::FATAL);
+            }
+
+            // Invalid configuration, warn the user and fall back to default level of WARN
+            error_log('Nextcloud configuration: "loglevel" is not a valid integer');
+            $this->nestingLevel--;
+            return ILogger::WARN;
+        }
+
+        foreach ($logCondition['matches'] as $option) {
+            if (
+                (!isset($option['shared_secret']) || $this->checkLogSecret($option['shared_secret']))
+                && (!isset($option['users']) || in_array($userId, $option['users'], true))
+                && (!isset($option['apps']) || (isset($context['app']) && in_array($context['app'], $option['apps'], true)))
+                && (!isset($option['message']) || str_contains($message, $option['message']))
+            ) {
+                if (!isset($option['apps']) && !isset($option['loglevel']) && !isset($option['message'])) {
+                    /* Only user and/or secret are listed as conditions, we can cache the result for the rest of the request */
+                    $this->logConditionSatisfied = true;
+                    $this->nestingLevel--;
+                    return ILogger::DEBUG;
+                }
+                $this->nestingLevel--;
+                return $option['loglevel'] ?? ILogger::DEBUG;
+            }
+        }
+
+        $this->nestingLevel--;
+        return ILogger::WARN;
+    }
+
+    protected function checkLogSecret(string $conditionSecret): bool {
+        $request = \OCP\Server::get(IRequest::class);
+
+        if ($request->getMethod() === 'PUT'
+            && !str_contains($request->getHeader('Content-Type'), 'application/x-www-form-urlencoded')
+            && !str_contains($request->getHeader('Content-Type'), 'application/json')) {
+            return hash_equals($conditionSecret, '');
+        }
+
+        // if token is found in the request change set the log condition to satisfied
+        return hash_equals($conditionSecret, $request->getParam('log_secret', ''));
+    }
+
+    /**
+     * Logs an exception very detailed
+     *
+     * @param Exception|Throwable $exception
+     * @param array $context
+     * @return void
+     * @since 8.2.0
+     */
+    public function logException(Throwable $exception, array $context = []): void {
+        $app = $context['app'] ?? 'no app in context';
+        $level = $context['level'] ?? ILogger::ERROR;
+
+        $minLevel = $this->getLogLevel($context, $context['message'] ?? $exception->getMessage());
+        if ($level < $minLevel
+            && (($this->crashReporters?->hasReporters() ?? false) === false)
+            && (($this->eventDispatcher?->hasListeners(BeforeMessageLoggedEvent::class) ?? false) === false)) {
+            return; // no crash reporter, no listeners, we can stop for lower log level
+        }
+
+        // if an error is raised before the autoloader is properly setup, we can't serialize exceptions
+        try {
+            $serializer = $this->getSerializer();
+        } catch (Throwable $e) {
+            $this->error('Failed to load ExceptionSerializer serializer while trying to log ' . $exception->getMessage());
+            return;
+        }
+        $data = $context;
+        unset($data['app']);
+        unset($data['level']);
+        $data = array_merge($serializer->serializeException($exception), $data);
+        $data = $this->interpolateMessage($data, isset($context['message']) && $context['message'] !== '' ? $context['message'] : ('Exception thrown: ' . get_class($exception)), 'CustomMessage');
+
+        array_walk($context, [$this->normalizer, 'format']);
+
+        $this->eventDispatcher?->dispatchTyped(new BeforeMessageLoggedEvent($app, $level, $data));
+
+        try {
+            if ($level >= $minLevel) {
+                if (!$this->logger instanceof IFileBased) {
+                    $data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
+                }
+                $this->writeLog($app, $data, $level);
+            }
+
+            $context['level'] = $level;
+            if (!is_null($this->crashReporters)) {
+                $this->crashReporters->delegateReport($exception, $context);
+            }
+        } catch (Throwable $e) {
+            // make sure we dont hard crash if logging fails
+        }
+    }
+
+    public function logData(string $message, array $data, array $context = []): void {
+        $app = $context['app'] ?? 'no app in context';
+        $level = $context['level'] ?? ILogger::ERROR;
+
+        $minLevel = $this->getLogLevel($context, $message);
+
+        array_walk($context, [$this->normalizer, 'format']);
+
+        try {
+            if ($level >= $minLevel) {
+                $data['message'] = $message;
+                if (!$this->logger instanceof IFileBased) {
+                    $data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
+                }
+                $this->writeLog($app, $data, $level);
+            }
+
+            $context['level'] = $level;
+        } catch (Throwable $e) {
+            // make sure we dont hard crash if logging fails
+            error_log('Error when trying to log exception: ' . $e->getMessage() . ' ' . $e->getTraceAsString());
+        }
+    }
+
+    /**
+     * @param string $app
+     * @param string|array $entry
+     * @param int $level
+     */
+    protected function writeLog(string $app, $entry, int $level): void {
+        $this->logger->write($app, $entry, $level);
+    }
+
+    public function getLogPath():string {
+        if ($this->logger instanceof IFileBased) {
+            return $this->logger->getLogFilePath();
+        }
+        throw new \RuntimeException('Log implementation has no path');
+    }
+
+    /**
+     * Interpolate $message as defined in PSR-3
+     *
+     * Returns an array containing the context without the interpolated
+     * parameters placeholders and the message as the 'message' - or
+     * user-defined - key.
+     */
+    private function interpolateMessage(array $context, string $message, string $messageKey = 'message'): array {
+        $replace = [];
+        $usedContextKeys = [];
+        foreach ($context as $key => $val) {
+            $fullKey = '{' . $key . '}';
+            $replace[$fullKey] = $val;
+            if (str_contains($message, $fullKey)) {
+                $usedContextKeys[$key] = true;
+            }
+        }
+        return array_merge(array_diff_key($context, $usedContextKeys), [$messageKey => strtr($message, $replace)]);
+    }
+
+    /**
+     * @throws Throwable
+     */
+    protected function getSerializer(): ExceptionSerializer {
+        $serializer = new ExceptionSerializer($this->config);
+        try {
+            /** @var Coordinator $coordinator */
+            $coordinator = \OCP\Server::get(Coordinator::class);
+            foreach ($coordinator->getRegistrationContext()->getSensitiveMethods() as $registration) {
+                $serializer->enlistSensitiveMethods($registration->getName(), $registration->getValue());
+            }
+            // For not every app might be initialized at this time, we cannot assume that the return value
+            // of getSensitiveMethods() is complete. Running delegates in Coordinator::registerApps() is
+            // not possible due to dependencies on the one hand. On the other it would work only with
+            // adding public methods to the PsrLoggerAdapter and this class.
+            // Thus, serializer cannot be a property.
+        } catch (Throwable $t) {
+            // ignore app-defined sensitive methods in this case - they weren't loaded anyway
+        }
+        return $serializer;
+    }
 }