namespace Friendica\Core;
+use Exception;
+use Friendica\App;
+use Friendica\Core\Config\Capability\IManageConfigValues;
use Friendica\DI;
use Friendica\Network\HTTPException\FoundException;
use Friendica\Network\HTTPException\MovedPermanentlyException;
use Friendica\Network\HTTPException\TemporaryRedirectException;
+use Friendica\Util\BasePath;
use Friendica\Util\XML;
+use Psr\Log\LoggerInterface;
/**
* Contains the class with system relevant stuff
*/
class System
{
+ /**
+ * @var LoggerInterface
+ */
+ private $logger;
+
+ /**
+ * @var IManageConfigValues
+ */
+ private $config;
+
+ /**
+ * @var string
+ */
+ private $basePath;
+
+ public function __construct(LoggerInterface $logger, IManageConfigValues $config, string $basepath)
+ {
+ $this->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.
*
* 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
{
$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
exit();
}
- /// @todo Move the following functions from boot.php
- /*
- function local_user()
- function public_contact()
- function remote_user()
- function notice($s)
- function info($s)
- function is_site_admin()
- function get_temppath()
- function get_spoolpath()
- */
+ /**
+ * Fetch the temp path of the system
+ *
+ * @return string Path for temp files
+ */
+ public static function getTempPath()
+ {
+ $temppath = DI::config()->get("system", "temppath");
+
+ if (($temppath != "") && System::isDirectoryUsable($temppath)) {
+ // We have a temp path and it is usable
+ return BasePath::getRealPath($temppath);
+ }
+
+ // We don't have a working preconfigured temp path, so we take the system path.
+ $temppath = sys_get_temp_dir();
+
+ // Check if it is usable
+ if (($temppath != "") && System::isDirectoryUsable($temppath)) {
+ // Always store the real path, not the path through symlinks
+ $temppath = BasePath::getRealPath($temppath);
+
+ // To avoid any interferences with other systems we create our own directory
+ $new_temppath = $temppath . "/" . DI::baseUrl()->getHostname();
+ if (!is_dir($new_temppath)) {
+ /// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
+ mkdir($new_temppath);
+ }
+
+ if (System::isDirectoryUsable($new_temppath)) {
+ // The new path is usable, we are happy
+ DI::config()->set("system", "temppath", $new_temppath);
+ return $new_temppath;
+ } else {
+ // We can't create a subdirectory, strange.
+ // But the directory seems to work, so we use it but don't store it.
+ return $temppath;
+ }
+ }
+
+ // Reaching this point means that the operating system is configured badly.
+ return '';
+ }
+
+ /**
+ * Returns the path where spool files are stored
+ *
+ * @return string Spool path
+ */
+ public static function getSpoolPath()
+ {
+ $spoolpath = DI::config()->get('system', 'spoolpath');
+ if (($spoolpath != "") && System::isDirectoryUsable($spoolpath)) {
+ // We have a spool path and it is usable
+ return $spoolpath;
+ }
+
+ // We don't have a working preconfigured spool path, so we take the temp path.
+ $temppath = self::getTempPath();
+
+ if ($temppath != "") {
+ // To avoid any interferences with other systems we create our own directory
+ $spoolpath = $temppath . "/spool";
+ if (!is_dir($spoolpath)) {
+ mkdir($spoolpath);
+ }
+
+ if (System::isDirectoryUsable($spoolpath)) {
+ // The new path is usable, we are happy
+ DI::config()->set("system", "spoolpath", $spoolpath);
+ return $spoolpath;
+ } else {
+ // We can't create a subdirectory, strange.
+ // But the directory seems to work, so we use it but don't store it.
+ return $temppath;
+ }
+ }
+
+ // Reaching this point means that the operating system is configured badly.
+ return "";
+ }
}
projects / friendica.git / blobdiff