X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCore%2FSystem.php;h=b2da78f1b3509d9a2ff5f16d147d1efd42c45e3e;hb=7a39be8270c1ce56c7a2df078bfbfd310601c569;hp=5069a4a9800c6e8da47848bf97f03c727bec6154;hpb=38a5358bfa646ae13a4a1a385741890fa88d9b7f;p=friendica.git diff --git a/src/Core/System.php b/src/Core/System.php index 5069a4a980..b2da78f1b3 100644 --- a/src/Core/System.php +++ b/src/Core/System.php @@ -1,6 +1,6 @@ logger = $logger; + $this->config = $config; + $this->basePath = $basepath; + } + + /** + * Checks if the maximum number of database processes is reached + * + * @return bool Is the limit reached? + */ + public function isMaxProcessesReached(): bool + { + // Deactivated, needs more investigating if this check really makes sense + return false; + + /* + * Commented out to suppress static analyzer issues + * + if ($this->mode->isBackend()) { + $process = 'backend'; + $max_processes = $this->config->get('system', 'max_processes_backend'); + if (intval($max_processes) == 0) { + $max_processes = 5; + } + } else { + $process = 'frontend'; + $max_processes = $this->config->get('system', 'max_processes_frontend'); + if (intval($max_processes) == 0) { + $max_processes = 20; + } + } + + $processlist = DBA::processlist(); + if ($processlist['list'] != '') { + $this->logger->debug('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list']); + + if ($processlist['amount'] > $max_processes) { + $this->logger->debug('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.'); + return true; + } + } + return false; + */ + } + + /** + * Checks if the minimal memory is reached + * + * @return bool Is the memory limit reached? + */ + public function isMinMemoryReached(): bool + { + // Deactivated, needs more investigating if this check really makes sense + return false; + + /* + * Commented out to suppress static analyzer issues + * + $min_memory = $this->config->get('system', 'min_memory', 0); + if ($min_memory == 0) { + return false; + } + + if (!is_readable('/proc/meminfo')) { + return false; + } + + $memdata = explode("\n", file_get_contents('/proc/meminfo')); + + $meminfo = []; + foreach ($memdata as $line) { + $data = explode(':', $line); + if (count($data) != 2) { + continue; + } + [$key, $val] = $data; + $meminfo[$key] = (int)trim(str_replace('kB', '', $val)); + $meminfo[$key] = (int)($meminfo[$key] / 1024); + } + + if (!isset($meminfo['MemFree'])) { + return false; + } + + $free = $meminfo['MemFree']; + + $reached = ($free < $min_memory); + + if ($reached) { + $this->logger->warning('Minimal memory reached.', ['free' => $free, 'memtotal' => $meminfo['MemTotal'], 'limit' => $min_memory]); + } + + return $reached; + */ + } + + /** + * Checks if the maximum load is reached + * + * @return bool Is the load reached? + */ + public function isMaxLoadReached(): bool + { + $maxsysload = intval($this->config->get('system', 'maxloadavg')); + if ($maxsysload < 1) { + $maxsysload = 50; + } + + $load = System::currentLoad(); + if ($load) { + if (intval($load) > $maxsysload) { + $this->logger->warning('system load for process too high.', ['load' => $load, 'process' => 'backend', 'maxsysload' => $maxsysload]); + return true; + } + } + return false; + } + + /** + * Executes a child process with 'proc_open' + * + * @param string $command The command to execute + * @param array $args Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ] + */ + public function run(string $command, array $args) + { + if (!function_exists('proc_open')) { + $this->logger->warning('"proc_open" not available - quitting'); + return; + } + + $cmdline = $this->config->get('config', 'php_path', 'php') . ' ' . escapeshellarg($command); + + foreach ($args as $key => $value) { + if (!is_null($value) && is_bool($value) && !$value) { + continue; + } + + $cmdline .= ' --' . $key; + if (!is_null($value) && !is_bool($value)) { + $cmdline .= ' ' . $value; + } + } + + if ($this->isMinMemoryReached()) { + $this->logger->warning('Memory limit reached - quitting'); + return; + } + + if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { + $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->basePath); + } else { + $resource = proc_open($cmdline . ' &', [], $foo, $this->basePath); + } + + if (!is_resource($resource)) { + $this->logger->warning('We got no resource for command.', ['command' => $cmdline]); + return; + } + + proc_close($resource); + + $this->logger->info('Executed "proc_open"', ['command' => $cmdline, 'callstack' => System::callstack(10)]); + } + /** * Returns a string with a callstack. Can be used for logging. * @@ -38,7 +226,7 @@ class System * this is called from a centralized method that isn't relevant to the callstack * @return string */ - public static function callstack(int $depth = 4, int $offset = 0) + public static function callstack(int $depth = 4, int $offset = 0): string { $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); @@ -100,16 +288,14 @@ class System } if ($st) { - Logger::log('xml_status returning non_zero: ' . $st . " message=" . $message); + Logger::notice('xml_status returning non_zero: ' . $st . " message=" . $message); } - header("Content-type: text/xml"); - - $xmldata = ["result" => $result]; + DI::apiResponse()->setType(Response::TYPE_XML); + DI::apiResponse()->addContent(XML::fromArray(["result" => $result], $xml)); + DI::page()->exit(DI::apiResponse()->generate()); - echo XML::fromArray($xmldata, $xml); - - exit(); + self::exit(); } /** @@ -120,20 +306,42 @@ class System * @param string $content Response body. Optional. * @throws \Exception */ - public static function httpExit($val, $message = '', $content = '') + public static function httpError($httpCode, $message = '', $content = '') { - Logger::log('http_status_exit ' . $val); - header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $message); + if ($httpCode >= 400) { + Logger::debug('Exit with error', ['code' => $httpCode, 'message' => $message, 'callstack' => System::callstack(20), 'method' => DI::args()->getMethod(), 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '']); + } + DI::apiResponse()->setStatus($httpCode, $message); + DI::apiResponse()->addContent($content); + DI::page()->exit(DI::apiResponse()->generate()); - echo $content; + self::exit(); + } - exit(); + /** + * This function adds the content and a content-teype HTTP header to the output. + * After finishing the process is getting killed. + * + * @param string $content + * @param string $type + * @param string|null $content_type + * @return void + */ + public static function httpExit(string $content, string $type = Response::TYPE_HTML, ?string $content_type = null) { + DI::apiResponse()->setType($type, $content_type); + DI::apiResponse()->addContent($content); + DI::page()->exit(DI::apiResponse()->generate()); + + self::exit(); } - public static function jsonError($httpCode, $data, $content_type = 'application/json') + public static function jsonError($httpCode, $content, $content_type = 'application/json') { - header($_SERVER["SERVER_PROTOCOL"] . ' ' . $httpCode); - self::jsonExit($data, $content_type); + if ($httpCode >= 400) { + Logger::debug('Exit with error', ['code' => $httpCode, 'content_type' => $content_type, 'callstack' => System::callstack(20), 'method' => DI::args()->getMethod(), 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '']); + } + DI::apiResponse()->setStatus($httpCode); + self::jsonExit($content, $content_type); } /** @@ -143,13 +351,25 @@ class System * and adds an application/json HTTP header to the output. * After finishing the process is getting killed. * - * @param mixed $x The input content. - * @param string $content_type Type of the input (Default: 'application/json'). - * @param integer $options JSON options + * @param mixed $content The input content + * @param string $content_type Type of the input (Default: 'application/json') + * @param integer $options JSON options + * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ - public static function jsonExit($x, $content_type = 'application/json', int $options = 0) { - header("Content-type: $content_type"); - echo json_encode($x, $options); + public static function jsonExit($content, $content_type = 'application/json', int $options = JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT) { + DI::apiResponse()->setType(Response::TYPE_JSON, $content_type); + DI::apiResponse()->addContent(json_encode($content, $options)); + DI::page()->exit(DI::apiResponse()->generate()); + + self::exit(); + } + + /** + * Exit the program execution. + */ + public static function exit() + { + DI::page()->logRuntime(DI::config(), 'exit'); exit(); } @@ -215,6 +435,43 @@ class System return max($load_arr[0], $load_arr[1]); } + /** + * Fetch the load and number of processes + * + * @return array + */ + public static function getLoadAvg(): array + { + if (@is_readable('/proc/loadavg')) { + $content = @file_get_contents('/proc/loadavg'); + if (empty($content)) { + $content = shell_exec('cat /proc/loadavg'); + } + } + + if (empty($content) || !preg_match("#([.\d]+)\s([.\d]+)\s([.\d]+)\s(\d+)/(\d+)#", $content, $matches)) { + $load_arr = sys_getloadavg(); + if (empty($load_arr)) { + return []; + } + return [ + 'average1' => $load_arr[0], + 'average5' => $load_arr[1], + 'average15' => $load_arr[2], + 'runnable' => 0, + 'scheduled' => 0 + ]; + } + + return [ + 'average1' => (float)$matches[1], + 'average5' => (float)$matches[2], + 'average15' => (float)$matches[3], + 'runnable' => (float)$matches[4], + 'scheduled' => (float)$matches[5] + ]; + } + /** * Redirects to an external URL (fully qualified URL) * If you want to route relative to the current Friendica base, use App->internalRedirect() @@ -222,29 +479,30 @@ class System * @param string $url The new Location to redirect * @param int $code The redirection code, which is used (Default is 302) * - * @throws InternalServerErrorException If the URL is not fully qualified + * @throws FoundException + * @throws MovedPermanentlyException + * @throws TemporaryRedirectException + * + * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public static function externalRedirect($url, $code = 302) { if (empty(parse_url($url, PHP_URL_SCHEME))) { - throw new InternalServerErrorException("'$url' is not a fully qualified URL, please use App->internalRedirect() instead"); + Logger::warning('No fully qualified URL provided', ['url' => $url, 'callstack' => self::callstack(20)]); + DI::baseUrl()->redirect($url); } + header("Location: $url"); + switch ($code) { case 302: - // this is the default code for a REDIRECT - // We don't need a extra header here - break; + throw new FoundException(); case 301: - header('HTTP/1.1 301 Moved Permanently'); - break; + throw new MovedPermanentlyException(); case 307: - header('HTTP/1.1 307 Temporary Redirect'); - break; + throw new TemporaryRedirectException(); } - - header("Location: $url"); - exit(); + self::exit(); } /** @@ -272,30 +530,30 @@ class System * * @return boolean the directory is usable */ - public static function isDirectoryUsable($directory, $check_writable = true) + private static function isDirectoryUsable($directory, $check_writable = true) { if ($directory == '') { - Logger::log('Directory is empty. This shouldn\'t happen.', Logger::DEBUG); + Logger::warning('Directory is empty. This shouldn\'t happen.'); return false; } if (!file_exists($directory)) { - Logger::log('Path "' . $directory . '" does not exist for user ' . static::getUser(), Logger::DEBUG); + Logger::warning('Path does not exist', ['directory' => $directory, 'user' => static::getUser()]); return false; } if (is_file($directory)) { - Logger::log('Path "' . $directory . '" is a file for user ' . static::getUser(), Logger::DEBUG); + Logger::warning('Path is a file', ['directory' => $directory, 'user' => static::getUser()]); return false; } if (!is_dir($directory)) { - Logger::log('Path "' . $directory . '" is not a directory for user ' . static::getUser(), Logger::DEBUG); + Logger::warning('Path is not a directory', ['directory' => $directory, 'user' => static::getUser()]); return false; } if ($check_writable && !is_writable($directory)) { - Logger::log('Path "' . $directory . '" is not writable for user ' . static::getUser(), Logger::DEBUG); + Logger::warning('Path is not writable', ['directory' => $directory, 'user' => static::getUser()]); return false; } @@ -309,7 +567,7 @@ class System */ public static function htmlUpdateExit($o) { - header("Content-type: text/html"); + DI::apiResponse()->setType(Response::TYPE_HTML); echo "
\r\n"; // We can remove this hack once Internet Explorer recognises HTML5 natively echo "