-<?php\r
-\r
-namespace Friendica;\r
-\r
-use Friendica\Core\Config;\r
-use Friendica\Core\PConfig;\r
-\r
-/**\r
- *\r
- * class: App\r
- *\r
- * @brief Our main application structure for the life of this page.\r
- *\r
- * Primarily deals with the URL that got us here\r
- * and tries to make some sense of it, and\r
- * stores our page contents and config storage\r
- * and anything else that might need to be passed around\r
- * before we spit the page out.\r
- *\r
- */\r
-class App {\r
-\r
- public $module_loaded = false;\r
- public $query_string;\r
- public $config;\r
- public $page;\r
- public $profile;\r
- public $profile_uid;\r
- public $user;\r
- public $cid;\r
- public $contact;\r
- public $contacts;\r
- public $page_contact;\r
- public $content;\r
- public $data = array();\r
- public $error = false;\r
- public $cmd;\r
- public $argv;\r
- public $argc;\r
- public $module;\r
- public $pager;\r
- public $strings;\r
- public $basepath;\r
- public $path;\r
- public $hooks;\r
- public $timezone;\r
- public $interactive = true;\r
- public $plugins;\r
- public $apps = array();\r
- public $identities;\r
- public $is_mobile = false;\r
- public $is_tablet = false;\r
- public $is_friendica_app;\r
- public $performance = array();\r
- public $callstack = array();\r
- public $theme_info = array();\r
- public $backend = true;\r
- public $nav_sel;\r
- public $category;\r
- // Allow themes to control internal parameters\r
- // by changing App values in theme.php\r
-\r
- public $sourcename = '';\r
- public $videowidth = 425;\r
- public $videoheight = 350;\r
- public $force_max_items = 0;\r
- public $theme_thread_allow = true;\r
- public $theme_events_in_profile = true;\r
-\r
- /**\r
- * @brief An array for all theme-controllable parameters\r
- *\r
- * Mostly unimplemented yet. Only options 'template_engine' and\r
- * beyond are used.\r
- */\r
- public $theme = array(\r
- 'sourcename' => '',\r
- 'videowidth' => 425,\r
- 'videoheight' => 350,\r
- 'force_max_items' => 0,\r
- 'thread_allow' => true,\r
- 'stylesheet' => '',\r
- 'template_engine' => 'smarty3',\r
- );\r
-\r
- /**\r
- * @brief An array of registered template engines ('name'=>'class name')\r
- */\r
- public $template_engines = array();\r
-\r
- /**\r
- * @brief An array of instanced template engines ('name'=>'instance')\r
- */\r
- public $template_engine_instance = array();\r
- public $process_id;\r
- private $ldelim = array(\r
- 'internal' => '',\r
- 'smarty3' => '{{'\r
- );\r
- private $rdelim = array(\r
- 'internal' => '',\r
- 'smarty3' => '}}'\r
- );\r
- private $scheme;\r
- private $hostname;\r
- private $db;\r
- private $curl_code;\r
- private $curl_content_type;\r
- private $curl_headers;\r
- private $cached_profile_image;\r
- private $cached_profile_picdate;\r
- private static $a;\r
-\r
- /**\r
- * @brief App constructor.\r
- *\r
- * @param string $basepath Path to the app base folder\r
- */\r
- function __construct($basepath) {\r
-\r
- global $default_timezone;\r
-\r
- $hostname = '';\r
-\r
- if (file_exists('.htpreconfig.php')) {\r
- include '.htpreconfig.php';\r
- }\r
-\r
- $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');\r
-\r
- date_default_timezone_set($this->timezone);\r
-\r
- $this->performance['start'] = microtime(true);\r
- $this->performance['database'] = 0;\r
- $this->performance['database_write'] = 0;\r
- $this->performance['network'] = 0;\r
- $this->performance['file'] = 0;\r
- $this->performance['rendering'] = 0;\r
- $this->performance['parser'] = 0;\r
- $this->performance['marktime'] = 0;\r
- $this->performance['markstart'] = microtime(true);\r
-\r
- $this->callstack['database'] = array();\r
- $this->callstack['database_write'] = array();\r
- $this->callstack['network'] = array();\r
- $this->callstack['file'] = array();\r
- $this->callstack['rendering'] = array();\r
- $this->callstack['parser'] = array();\r
-\r
- $this->config = array();\r
- $this->page = array();\r
- $this->pager = array();\r
-\r
- $this->query_string = '';\r
-\r
- $this->process_id = uniqid('log', true);\r
-\r
- startup();\r
-\r
- $this->scheme = 'http';\r
-\r
- if ((x($_SERVER, 'HTTPS') && $_SERVER['HTTPS']) ||\r
- (x($_SERVER, 'HTTP_FORWARDED') && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED'])) ||\r
- (x($_SERVER, 'HTTP_X_FORWARDED_PROTO') && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||\r
- (x($_SERVER, 'HTTP_X_FORWARDED_SSL') && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||\r
- (x($_SERVER, 'FRONT_END_HTTPS') && $_SERVER['FRONT_END_HTTPS'] == 'on') ||\r
- (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?\r
- ) {\r
- $this->scheme = 'https';\r
- }\r
-\r
- if (x($_SERVER, 'SERVER_NAME')) {\r
- $this->hostname = $_SERVER['SERVER_NAME'];\r
-\r
- if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {\r
- $this->hostname .= ':' . $_SERVER['SERVER_PORT'];\r
- }\r
- /*\r
- * Figure out if we are running at the top of a domain\r
- * or in a sub-directory and adjust accordingly\r
- */\r
-\r
- /// @TODO This kind of escaping breaks syntax-highlightning on CoolEdit (Midnight Commander)\r
- $path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');\r
- if (isset($path) && strlen($path) && ($path != $this->path)) {\r
- $this->path = $path;\r
- }\r
- }\r
-\r
- if ($hostname != '') {\r
- $this->hostname = $hostname;\r
- }\r
-\r
- if (! static::directory_usable($basepath)) {\r
- throw new \Exception('Basepath ' . $basepath . ' isn\'t usable.');\r
- }\r
-\r
- $this->basepath = rtrim($basepath, DIRECTORY_SEPARATOR);\r
-\r
- set_include_path(\r
- get_include_path() . PATH_SEPARATOR\r
- . $this->basepath . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR\r
- . $this->basepath . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR\r
- . $this->basepath . DIRECTORY_SEPARATOR . 'library/langdet' . PATH_SEPARATOR\r
- . $this->basepath);\r
-\r
-\r
- if (is_array($_SERVER['argv']) && $_SERVER['argc'] > 1 && substr(end($_SERVER['argv']), 0, 4) == 'http') {\r
- $this->set_baseurl(array_pop($_SERVER['argv']));\r
- $_SERVER['argc'] --;\r
- }\r
-\r
- if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 9) === 'pagename=') {\r
- $this->query_string = substr($_SERVER['QUERY_STRING'], 9);\r
-\r
- // removing trailing / - maybe a nginx problem\r
- $this->query_string = ltrim($this->query_string, '/');\r
- } elseif ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === 'q=') {\r
- $this->query_string = substr($_SERVER['QUERY_STRING'], 2);\r
-\r
- // removing trailing / - maybe a nginx problem\r
- $this->query_string = ltrim($this->query_string, '/');\r
- }\r
-\r
- if (x($_GET, 'pagename')) {\r
- $this->cmd = trim($_GET['pagename'], '/\\');\r
- } elseif (x($_GET, 'q')) {\r
- $this->cmd = trim($_GET['q'], '/\\');\r
- }\r
-\r
- // fix query_string\r
- $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);\r
-\r
- // unix style "homedir"\r
- if (substr($this->cmd, 0, 1) === '~') {\r
- $this->cmd = 'profile/' . substr($this->cmd, 1);\r
- }\r
-\r
- // Diaspora style profile url\r
- if (substr($this->cmd, 0, 2) === 'u/') {\r
- $this->cmd = 'profile/' . substr($this->cmd, 2);\r
- }\r
-\r
- /*\r
- * Break the URL path into C style argc/argv style arguments for our\r
- * modules. Given "http://example.com/module/arg1/arg2", $this->argc\r
- * will be 3 (integer) and $this->argv will contain:\r
- * [0] => 'module'\r
- * [1] => 'arg1'\r
- * [2] => 'arg2'\r
- *\r
- *\r
- * There will always be one argument. If provided a naked domain\r
- * URL, $this->argv[0] is set to "home".\r
- */\r
-\r
- $this->argv = explode('/', $this->cmd);\r
- $this->argc = count($this->argv);\r
- if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {\r
- $this->module = str_replace('.', '_', $this->argv[0]);\r
- $this->module = str_replace('-', '_', $this->module);\r
- } else {\r
- $this->argc = 1;\r
- $this->argv = array('home');\r
- $this->module = 'home';\r
- }\r
-\r
- // See if there is any page number information, and initialise pagination\r
- $this->pager['page'] = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);\r
- $this->pager['itemspage'] = 50;\r
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];\r
-\r
- if ($this->pager['start'] < 0) {\r
- $this->pager['start'] = 0;\r
- }\r
- $this->pager['total'] = 0;\r
-\r
- // Detect mobile devices\r
- $mobile_detect = new \Mobile_Detect();\r
- $this->is_mobile = $mobile_detect->isMobile();\r
- $this->is_tablet = $mobile_detect->isTablet();\r
-\r
- // Friendica-Client\r
- $this->is_friendica_app = ($_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)');\r
-\r
- // Register template engines\r
- $dc = get_declared_classes();\r
- foreach ($dc as $k) {\r
- if (in_array('ITemplateEngine', class_implements($k))) {\r
- $this->register_template_engine($k);\r
- }\r
- }\r
-\r
- self::$a = $this;\r
- }\r
-\r
- /**\r
- * @brief Returns the base filesystem path of the App\r
- *\r
- * It first checks for the internal variable, then for DOCUMENT_ROOT and\r
- * finally for PWD\r
- *\r
- * @return string\r
- */\r
- public static function get_basepath() {\r
- if (isset($this)) {\r
- $basepath = $this->basepath;\r
- }\r
-\r
- if (! $basepath) {\r
- $basepath = Config::get('system', 'basepath');\r
- }\r
-\r
- if (! $basepath && x($_SERVER, 'DOCUMENT_ROOT')) {\r
- $basepath = $_SERVER['DOCUMENT_ROOT'];\r
- }\r
-\r
- if (! $basepath && x($_SERVER, 'PWD')) {\r
- $basepath = $_SERVER['PWD'];\r
- }\r
-\r
- return $basepath;\r
- }\r
-\r
- function get_scheme() {\r
- return $this->scheme;\r
- }\r
-\r
- /**\r
- * @brief Retrieves the Friendica instance base URL\r
- *\r
- * This function assembles the base URL from multiple parts:\r
- * - Protocol is determined either by the request or a combination of\r
- * system.ssl_policy and the $ssl parameter.\r
- * - Host name is determined either by system.hostname or inferred from request\r
- * - Path is inferred from SCRIPT_NAME\r
- *\r
- * Note: $ssl parameter value doesn't directly correlate with the resulting protocol\r
- *\r
- * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN\r
- * @return string Friendica server base URL\r
- */\r
- function get_baseurl($ssl = false) {\r
- // Is the function called statically?\r
- if (!(isset($this) && get_class($this) == __CLASS__)) {\r
- return self::$a->get_baseurl($ssl);\r
- }\r
-\r
- $scheme = $this->scheme;\r
-\r
- if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {\r
- $scheme = 'https';\r
- }\r
-\r
- // Basically, we have $ssl = true on any links which can only be seen by a logged in user\r
- // (and also the login link). Anything seen by an outsider will have it turned off.\r
-\r
- if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {\r
- if ($ssl) {\r
- $scheme = 'https';\r
- } else {\r
- $scheme = 'http';\r
- }\r
- }\r
-\r
- if (Config::get('config', 'hostname') != '') {\r
- $this->hostname = Config::get('config', 'hostname');\r
- }\r
-\r
- return $scheme . '://' . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );\r
- }\r
-\r
- /**\r
- * @brief Initializes the baseurl components\r
- *\r
- * Clears the baseurl cache to prevent inconstistencies\r
- *\r
- * @param string $url\r
- */\r
- function set_baseurl($url) {\r
- $parsed = @parse_url($url);\r
-\r
- if ($parsed) {\r
- $this->scheme = $parsed['scheme'];\r
-\r
- $hostname = $parsed['host'];\r
- if (x($parsed, 'port')) {\r
- $hostname .= ':' . $parsed['port'];\r
- }\r
- if (x($parsed, 'path')) {\r
- $this->path = trim($parsed['path'], '\\/');\r
- }\r
-\r
- if (file_exists('.htpreconfig.php')) {\r
- include '.htpreconfig.php';\r
- }\r
-\r
- if (Config::get('config', 'hostname') != '') {\r
- $this->hostname = Config::get('config', 'hostname');\r
- }\r
-\r
- if (!isset($this->hostname) OR ( $this->hostname == '')) {\r
- $this->hostname = $hostname;\r
- }\r
- }\r
- }\r
-\r
- function get_hostname() {\r
- if (Config::get('config', 'hostname') != '') {\r
- $this->hostname = Config::get('config', 'hostname');\r
- }\r
-\r
- return $this->hostname;\r
- }\r
-\r
- function set_hostname($h) {\r
- $this->hostname = $h;\r
- }\r
-\r
- function set_path($p) {\r
- $this->path = trim(trim($p), '/');\r
- }\r
-\r
- function get_path() {\r
- return $this->path;\r
- }\r
-\r
- function set_pager_total($n) {\r
- $this->pager['total'] = intval($n);\r
- }\r
-\r
- function set_pager_itemspage($n) {\r
- $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);\r
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];\r
- }\r
-\r
- function set_pager_page($n) {\r
- $this->pager['page'] = $n;\r
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];\r
- }\r
-\r
- function init_pagehead() {\r
- $interval = ((local_user()) ? PConfig::get(local_user(), 'system', 'update_interval') : 40000);\r
-\r
- // If the update is 'deactivated' set it to the highest integer number (~24 days)\r
- if ($interval < 0) {\r
- $interval = 2147483647;\r
- }\r
-\r
- if ($interval < 10000) {\r
- $interval = 40000;\r
- }\r
-\r
- // compose the page title from the sitename and the\r
- // current module called\r
- if (!$this->module == '') {\r
- $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';\r
- } else {\r
- $this->page['title'] = $this->config['sitename'];\r
- }\r
-\r
- /* put the head template at the beginning of page['htmlhead']\r
- * since the code added by the modules frequently depends on it\r
- * being first\r
- */\r
- if (!isset($this->page['htmlhead'])) {\r
- $this->page['htmlhead'] = '';\r
- }\r
-\r
- // If we're using Smarty, then doing replace_macros() will replace\r
- // any unrecognized variables with a blank string. Since we delay\r
- // replacing $stylesheet until later, we need to replace it now\r
- // with another variable name\r
- if ($this->theme['template_engine'] === 'smarty3') {\r
- $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');\r
- } else {\r
- $stylesheet = '$stylesheet';\r
- }\r
-\r
- $shortcut_icon = Config::get('system', 'shortcut_icon');\r
- if ($shortcut_icon == '') {\r
- $shortcut_icon = 'images/friendica-32.png';\r
- }\r
-\r
- $touch_icon = Config::get('system', 'touch_icon');\r
- if ($touch_icon == '') {\r
- $touch_icon = 'images/friendica-128.png';\r
- }\r
-\r
- // get data wich is needed for infinite scroll on the network page\r
- $invinite_scroll = infinite_scroll_data($this->module);\r
-\r
- $tpl = get_markup_template('head.tpl');\r
- $this->page['htmlhead'] = replace_macros($tpl, array(\r
- '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!\r
- '$local_user' => local_user(),\r
- '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,\r
- '$delitem' => t('Delete this item?'),\r
- '$showmore' => t('show more'),\r
- '$showfewer' => t('show fewer'),\r
- '$update_interval' => $interval,\r
- '$shortcut_icon' => $shortcut_icon,\r
- '$touch_icon' => $touch_icon,\r
- '$stylesheet' => $stylesheet,\r
- '$infinite_scroll' => $invinite_scroll,\r
- )) . $this->page['htmlhead'];\r
- }\r
-\r
- function init_page_end() {\r
- if (!isset($this->page['end'])) {\r
- $this->page['end'] = '';\r
- }\r
- $tpl = get_markup_template('end.tpl');\r
- $this->page['end'] = replace_macros($tpl, array(\r
- '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!\r
- )) . $this->page['end'];\r
- }\r
-\r
- function set_curl_code($code) {\r
- $this->curl_code = $code;\r
- }\r
-\r
- function get_curl_code() {\r
- return $this->curl_code;\r
- }\r
-\r
- function set_curl_content_type($content_type) {\r
- $this->curl_content_type = $content_type;\r
- }\r
-\r
- function get_curl_content_type() {\r
- return $this->curl_content_type;\r
- }\r
-\r
- function set_curl_headers($headers) {\r
- $this->curl_headers = $headers;\r
- }\r
-\r
- function get_curl_headers() {\r
- return $this->curl_headers;\r
- }\r
-\r
- function get_cached_avatar_image($avatar_image) {\r
- return $avatar_image;\r
- }\r
-\r
- /**\r
- * @brief Removes the baseurl from an url. This avoids some mixed content problems.\r
- *\r
- * @param string $orig_url\r
- *\r
- * @return string The cleaned url\r
- */\r
- function remove_baseurl($orig_url) {\r
-\r
- // Is the function called statically?\r
- if (!(isset($this) && get_class($this) == __CLASS__)) {\r
- return self::$a->remove_baseurl($orig_url);\r
- }\r
-\r
- // Remove the hostname from the url if it is an internal link\r
- $nurl = normalise_link($orig_url);\r
- $base = normalise_link($this->get_baseurl());\r
- $url = str_replace($base . '/', '', $nurl);\r
-\r
- // if it is an external link return the orignal value\r
- if ($url == normalise_link($orig_url)) {\r
- return $orig_url;\r
- } else {\r
- return $url;\r
- }\r
- }\r
-\r
- /**\r
- * @brief Register template engine class\r
- *\r
- * If $name is '', is used class static property $class::$name\r
- *\r
- * @param string $class\r
- * @param string $name\r
- */\r
- function register_template_engine($class, $name = '') {\r
- /// @TODO Really === and not just == ?\r
- if ($name === '') {\r
- $v = get_class_vars($class);\r
- if (x($v, 'name'))\r
- $name = $v['name'];\r
- }\r
- if ($name === '') {\r
- echo "template engine <tt>$class</tt> cannot be registered without a name.\n";\r
- killme();\r
- }\r
- $this->template_engines[$name] = $class;\r
- }\r
-\r
- /**\r
- * @brief Return template engine instance.\r
- *\r
- * If $name is not defined, return engine defined by theme,\r
- * or default\r
- *\r
- * @param strin $name Template engine name\r
- * @return object Template Engine instance\r
- */\r
- function template_engine($name = '') {\r
- /// @TODO really type-check included?\r
- if ($name !== '') {\r
- $template_engine = $name;\r
- } else {\r
- $template_engine = 'smarty3';\r
- if (x($this->theme, 'template_engine')) {\r
- $template_engine = $this->theme['template_engine'];\r
- }\r
- }\r
-\r
- if (isset($this->template_engines[$template_engine])) {\r
- if (isset($this->template_engine_instance[$template_engine])) {\r
- return $this->template_engine_instance[$template_engine];\r
- } else {\r
- $class = $this->template_engines[$template_engine];\r
- $obj = new $class;\r
- $this->template_engine_instance[$template_engine] = $obj;\r
- return $obj;\r
- }\r
- }\r
-\r
- echo "template engine <tt>$template_engine</tt> is not registered!\n";\r
- killme();\r
- }\r
-\r
- /**\r
- * @brief Returns the active template engine.\r
- *\r
- * @return string\r
- */\r
- function get_template_engine() {\r
- return $this->theme['template_engine'];\r
- }\r
-\r
- function set_template_engine($engine = 'smarty3') {\r
- $this->theme['template_engine'] = $engine;\r
- }\r
-\r
- function get_template_ldelim($engine = 'smarty3') {\r
- return $this->ldelim[$engine];\r
- }\r
-\r
- function get_template_rdelim($engine = 'smarty3') {\r
- return $this->rdelim[$engine];\r
- }\r
-\r
- function save_timestamp($stamp, $value) {\r
- if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {\r
- return;\r
- }\r
-\r
- $duration = (float) (microtime(true) - $stamp);\r
-\r
- if (!isset($this->performance[$value])) {\r
- // Prevent ugly E_NOTICE\r
- $this->performance[$value] = 0;\r
- }\r
-\r
- $this->performance[$value] += (float) $duration;\r
- $this->performance['marktime'] += (float) $duration;\r
-\r
- $callstack = $this->callstack();\r
-\r
- if (!isset($this->callstack[$value][$callstack])) {\r
- // Prevent ugly E_NOTICE\r
- $this->callstack[$value][$callstack] = 0;\r
- }\r
-\r
- $this->callstack[$value][$callstack] += (float) $duration;\r
- }\r
-\r
- /**\r
- * @brief Log active processes into the "process" table\r
- */\r
- function start_process() {\r
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);\r
-\r
- $command = basename($trace[0]['file']);\r
-\r
- $this->remove_inactive_processes();\r
-\r
- q('START TRANSACTION');\r
-\r
- $r = q('SELECT `pid` FROM `process` WHERE `pid` = %d', intval(getmypid()));\r
- if (!\dbm::is_result($r)) {\r
- q("INSERT INTO `process` (`pid`,`command`,`created`) VALUES (%d, '%s', '%s')", intval(getmypid()), dbesc($command), dbesc(datetime_convert()));\r
- }\r
- q('COMMIT');\r
- }\r
-\r
- /**\r
- * @brief Remove inactive processes\r
- */\r
- function remove_inactive_processes() {\r
- q('START TRANSACTION');\r
-\r
- $r = q('SELECT `pid` FROM `process`');\r
- if (\dbm::is_result($r)) {\r
- foreach ($r AS $process) {\r
- if (!posix_kill($process['pid'], 0)) {\r
- q('DELETE FROM `process` WHERE `pid` = %d', intval($process['pid']));\r
- }\r
- }\r
- }\r
- q('COMMIT');\r
- }\r
-\r
- /**\r
- * @brief Remove the active process from the "process" table\r
- */\r
- function end_process() {\r
- q('DELETE FROM `process` WHERE `pid` = %d', intval(getmypid()));\r
- }\r
-\r
- /**\r
- * @brief Returns a string with a callstack. Can be used for logging.\r
- *\r
- * @return string\r
- */\r
- function callstack() {\r
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 6);\r
-\r
- // We remove the first two items from the list since they contain data that we don't need.\r
- array_shift($trace);\r
- array_shift($trace);\r
-\r
- $callstack = array();\r
- foreach ($trace AS $func) {\r
- $callstack[] = $func['function'];\r
- }\r
-\r
- return implode(', ', $callstack);\r
- }\r
-\r
- function get_useragent() {\r
- return\r
- FRIENDICA_PLATFORM . " '" .\r
- FRIENDICA_CODENAME . "' " .\r
- FRIENDICA_VERSION . '-' .\r
- DB_UPDATE_VERSION . '; ' .\r
- $this->get_baseurl();\r
- }\r
-\r
- function is_friendica_app() {\r
- return $this->is_friendica_app;\r
- }\r
-\r
- /**\r
- * @brief Checks if the site is called via a backend process\r
- *\r
- * This isn't a perfect solution. But we need this check very early.\r
- * So we cannot wait until the modules are loaded.\r
- *\r
- * @return bool Is it a known backend?\r
- */\r
- function is_backend() {\r
- static $backends = array();\r
- $backends[] = '_well_known';\r
- $backends[] = 'api';\r
- $backends[] = 'dfrn_notify';\r
- $backends[] = 'fetch';\r
- $backends[] = 'hcard';\r
- $backends[] = 'hostxrd';\r
- $backends[] = 'nodeinfo';\r
- $backends[] = 'noscrape';\r
- $backends[] = 'p';\r
- $backends[] = 'poco';\r
- $backends[] = 'post';\r
- $backends[] = 'proxy';\r
- $backends[] = 'pubsub';\r
- $backends[] = 'pubsubhubbub';\r
- $backends[] = 'receive';\r
- $backends[] = 'rsd_xml';\r
- $backends[] = 'salmon';\r
- $backends[] = 'statistics_json';\r
- $backends[] = 'xrd';\r
-\r
- // Check if current module is in backend or backend flag is set\r
- return (in_array($this->module, $backends) || $this->backend);\r
- }\r
-\r
- /**\r
- * @brief Checks if the maximum number of database processes is reached\r
- *\r
- * @return bool Is the limit reached?\r
- */\r
- function max_processes_reached() {\r
-\r
- if ($this->is_backend()) {\r
- $process = 'backend';\r
- $max_processes = Config::get('system', 'max_processes_backend');\r
- if (intval($max_processes) == 0) {\r
- $max_processes = 5;\r
- }\r
- } else {\r
- $process = 'frontend';\r
- $max_processes = Config::get('system', 'max_processes_frontend');\r
- if (intval($max_processes) == 0) {\r
- $max_processes = 20;\r
- }\r
- }\r
-\r
- $processlist = \dbm::processlist();\r
- if ($processlist['list'] != '') {\r
- logger('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], LOGGER_DEBUG);\r
-\r
- if ($processlist['amount'] > $max_processes) {\r
- logger('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', LOGGER_DEBUG);\r
- return true;\r
- }\r
- }\r
- return false;\r
- }\r
-\r
- /**\r
- * @brief Checks if the minimal memory is reached\r
- *\r
- * @return bool Is the memory limit reached?\r
- */\r
- public function min_memory_reached() {\r
- $min_memory = Config::get('system', 'min_memory', 0);\r
- if ($min_memory == 0) {\r
- return false;\r
- }\r
-\r
- if (!is_readable('/proc/meminfo')) {\r
- return false;\r
- }\r
-\r
- $memdata = explode("\n", file_get_contents('/proc/meminfo'));\r
-\r
- $meminfo = array();\r
- foreach ($memdata as $line) {\r
- list($key, $val) = explode(':', $line);\r
- $meminfo[$key] = (int) trim(str_replace('kB', '', $val));\r
- $meminfo[$key] = (int) ($meminfo[$key] / 1024);\r
- }\r
-\r
- if (!isset($meminfo['MemAvailable']) OR ! isset($meminfo['MemFree'])) {\r
- return false;\r
- }\r
-\r
- $free = $meminfo['MemAvailable'] + $meminfo['MemFree'];\r
-\r
- $reached = ($free < $min_memory);\r
-\r
- if ($reached) {\r
- logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);\r
- }\r
-\r
- return $reached;\r
- }\r
-\r
- /**\r
- * @brief Checks if the maximum load is reached\r
- *\r
- * @return bool Is the load reached?\r
- */\r
- function maxload_reached() {\r
-\r
- if ($this->is_backend()) {\r
- $process = 'backend';\r
- $maxsysload = intval(Config::get('system', 'maxloadavg'));\r
- if ($maxsysload < 1) {\r
- $maxsysload = 50;\r
- }\r
- } else {\r
- $process = 'frontend';\r
- $maxsysload = intval(Config::get('system', 'maxloadavg_frontend'));\r
- if ($maxsysload < 1) {\r
- $maxsysload = 50;\r
- }\r
- }\r
-\r
- $load = current_load();\r
- if ($load) {\r
- if (intval($load) > $maxsysload) {\r
- logger('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');\r
- return true;\r
- }\r
- }\r
- return false;\r
- }\r
-\r
- function proc_run($args) {\r
-\r
- if (!function_exists('proc_open')) {\r
- return;\r
- }\r
-\r
- // If the last worker fork was less than 10 seconds before then don't fork another one.\r
- // This should prevent the forking of masses of workers.\r
- $cachekey = 'app:proc_run:started';\r
- $result = \Cache::get($cachekey);\r
-\r
- if (!is_null($result) AND ( time() - $result) < 10) {\r
- return;\r
- }\r
-\r
- // Set the timestamp of the last proc_run\r
- \Cache::set($cachekey, time(), CACHE_MINUTE);\r
-\r
- array_unshift($args, ((x($this->config, 'php_path')) && (strlen($this->config['php_path'])) ? $this->config['php_path'] : 'php'));\r
-\r
- // add baseurl to args. cli scripts can't construct it\r
- $args[] = $this->get_baseurl();\r
-\r
- for ($x = 0; $x < count($args); $x ++) {\r
- $args[$x] = escapeshellarg($args[$x]);\r
- }\r
-\r
- $cmdline = implode($args, ' ');\r
-\r
- if ($this->min_memory_reached()) {\r
- return;\r
- }\r
-\r
- if (Config::get('system', 'proc_windows')) {\r
- $resource = proc_open('cmd /c start /b ' . $cmdline, array(), $foo, $this->get_basepath());\r
- } else {\r
- $resource = proc_open($cmdline . ' &', array(), $foo, $this->get_basepath());\r
- }\r
- if (!is_resource($resource)) {\r
- logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);\r
- return;\r
- }\r
- proc_close($resource);\r
- }\r
-\r
- /**\r
- * @brief Returns the system user that is executing the script\r
- *\r
- * This mostly returns something like "www-data".\r
- *\r
- * @return string system username\r
- */\r
- static function systemuser() {\r
- if (!function_exists('posix_getpwuid') OR ! function_exists('posix_geteuid')) {\r
- return '';\r
- }\r
-\r
- $processUser = posix_getpwuid(posix_geteuid());\r
- return $processUser['name'];\r
- }\r
-\r
- /**\r
- * @brief Checks if a given directory is usable for the system\r
- *\r
- * @return boolean the directory is usable\r
- */\r
- static function directory_usable($directory) {\r
- if ($directory == '') {\r
- logger('Directory is empty. This shouldn\'t happen.', LOGGER_DEBUG);\r
- return false;\r
- }\r
-\r
- if (!file_exists($directory)) {\r
- logger('Path "' . $directory . '" does not exist for user ' . self::systemuser(), LOGGER_DEBUG);\r
- return false;\r
- }\r
- if (is_file($directory)) {\r
- logger('Path "' . $directory . '" is a file for user ' . self::systemuser(), LOGGER_DEBUG);\r
- return false;\r
- }\r
- if (!is_dir($directory)) {\r
- logger('Path "' . $directory . '" is not a directory for user ' . self::systemuser(), LOGGER_DEBUG);\r
- return false;\r
- }\r
- if (!is_writable($directory)) {\r
- logger('Path "' . $directory . '" is not writable for user ' . self::systemuser(), LOGGER_DEBUG);\r
- return false;\r
- }\r
- return true;\r
- }\r
-}\r
+<?php
+
+namespace Friendica;
+
+use Friendica\Core\Config;
+use Friendica\Core\PConfig;
+
+use Cache;
+use dba;
+use dbm;
+
+use Detection\MobileDetect;
+
+use Exception;
+
+/**
+ *
+ * class: App
+ *
+ * @brief Our main application structure for the life of this page.
+ *
+ * Primarily deals with the URL that got us here
+ * and tries to make some sense of it, and
+ * stores our page contents and config storage
+ * and anything else that might need to be passed around
+ * before we spit the page out.
+ *
+ */
+class App {
+
+ public $module_loaded = false;
+ public $query_string;
+ public $config;
+ public $page;
+ public $profile;
+ public $profile_uid;
+ public $user;
+ public $cid;
+ public $contact;
+ public $contacts;
+ public $page_contact;
+ public $content;
+ public $data = array();
+ public $error = false;
+ public $cmd;
+ public $argv;
+ public $argc;
+ public $module;
+ public $pager;
+ public $strings;
+ public $basepath;
+ public $path;
+ public $hooks;
+ public $timezone;
+ public $interactive = true;
+ public $plugins;
+ public $apps = array();
+ public $identities;
+ public $is_mobile = false;
+ public $is_tablet = false;
+ public $is_friendica_app;
+ public $performance = array();
+ public $callstack = array();
+ public $theme_info = array();
+ public $backend = true;
+ public $nav_sel;
+ public $category;
+ // Allow themes to control internal parameters
+ // by changing App values in theme.php
+
+ public $sourcename = '';
+ public $videowidth = 425;
+ public $videoheight = 350;
+ public $force_max_items = 0;
+ public $theme_thread_allow = true;
+ public $theme_events_in_profile = true;
+
+ /**
+ * @brief An array for all theme-controllable parameters
+ *
+ * Mostly unimplemented yet. Only options 'template_engine' and
+ * beyond are used.
+ */
+ public $theme = array(
+ 'sourcename' => '',
+ 'videowidth' => 425,
+ 'videoheight' => 350,
+ 'force_max_items' => 0,
+ 'thread_allow' => true,
+ 'stylesheet' => '',
+ 'template_engine' => 'smarty3',
+ );
+
+ /**
+ * @brief An array of registered template engines ('name'=>'class name')
+ */
+ public $template_engines = array();
+
+ /**
+ * @brief An array of instanced template engines ('name'=>'instance')
+ */
+ public $template_engine_instance = array();
+ public $process_id;
+ public $queue;
+ private $ldelim = array(
+ 'internal' => '',
+ 'smarty3' => '{{'
+ );
+ private $rdelim = array(
+ 'internal' => '',
+ 'smarty3' => '}}'
+ );
+ private $scheme;
+ private $hostname;
+ private $db;
+ private $curl_code;
+ private $curl_content_type;
+ private $curl_headers;
+ private $cached_profile_image;
+ private $cached_profile_picdate;
+ private static $a;
+
+ /**
+ * @brief App constructor.
+ *
+ * @param string $basepath Path to the app base folder
+ */
+ function __construct($basepath) {
+
+ global $default_timezone;
+
+ $hostname = '';
+
+ if (file_exists('.htpreconfig.php')) {
+ include '.htpreconfig.php';
+ }
+
+ $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
+
+ date_default_timezone_set($this->timezone);
+
+ $this->performance['start'] = microtime(true);
+ $this->performance['database'] = 0;
+ $this->performance['database_write'] = 0;
+ $this->performance['network'] = 0;
+ $this->performance['file'] = 0;
+ $this->performance['rendering'] = 0;
+ $this->performance['parser'] = 0;
+ $this->performance['marktime'] = 0;
+ $this->performance['markstart'] = microtime(true);
+
+ $this->callstack['database'] = array();
+ $this->callstack['database_write'] = array();
+ $this->callstack['network'] = array();
+ $this->callstack['file'] = array();
+ $this->callstack['rendering'] = array();
+ $this->callstack['parser'] = array();
+
+ $this->config = array();
+ $this->page = array();
+ $this->pager = array();
+
+ $this->query_string = '';
+
+ $this->process_id = uniqid('log', true);
+
+ startup();
+
+ $this->scheme = 'http';
+
+ if ((x($_SERVER, 'HTTPS') && $_SERVER['HTTPS']) ||
+ (x($_SERVER, 'HTTP_FORWARDED') && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED'])) ||
+ (x($_SERVER, 'HTTP_X_FORWARDED_PROTO') && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||
+ (x($_SERVER, 'HTTP_X_FORWARDED_SSL') && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||
+ (x($_SERVER, 'FRONT_END_HTTPS') && $_SERVER['FRONT_END_HTTPS'] == 'on') ||
+ (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?
+ ) {
+ $this->scheme = 'https';
+ }
+
+ if (x($_SERVER, 'SERVER_NAME')) {
+ $this->hostname = $_SERVER['SERVER_NAME'];
+
+ if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
+ $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
+ }
+ /*
+ * Figure out if we are running at the top of a domain
+ * or in a sub-directory and adjust accordingly
+ */
+
+ /// @TODO This kind of escaping breaks syntax-highlightning on CoolEdit (Midnight Commander)
+ $path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');
+ if (isset($path) && strlen($path) && ($path != $this->path)) {
+ $this->path = $path;
+ }
+ }
+
+ if ($hostname != '') {
+ $this->hostname = $hostname;
+ }
+
+ if (! static::directory_usable($basepath, false)) {
+ throw new Exception('Basepath ' . $basepath . ' isn\'t usable.');
+ }
+
+ $this->basepath = rtrim($basepath, DIRECTORY_SEPARATOR);
+
+ set_include_path(
+ get_include_path() . PATH_SEPARATOR
+ . $this->basepath . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
+ . $this->basepath . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
+ . $this->basepath . DIRECTORY_SEPARATOR . 'library/langdet' . PATH_SEPARATOR
+ . $this->basepath);
+
+
+ if (is_array($_SERVER['argv']) && $_SERVER['argc'] > 1 && substr(end($_SERVER['argv']), 0, 4) == 'http') {
+ $this->set_baseurl(array_pop($_SERVER['argv']));
+ $_SERVER['argc'] --;
+ }
+
+ if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 9) === 'pagename=') {
+ $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
+
+ // removing trailing / - maybe a nginx problem
+ $this->query_string = ltrim($this->query_string, '/');
+ } elseif ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === 'q=') {
+ $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
+
+ // removing trailing / - maybe a nginx problem
+ $this->query_string = ltrim($this->query_string, '/');
+ }
+
+ if (x($_GET, 'pagename')) {
+ $this->cmd = trim($_GET['pagename'], '/\\');
+ } elseif (x($_GET, 'q')) {
+ $this->cmd = trim($_GET['q'], '/\\');
+ }
+
+ // fix query_string
+ $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
+
+ // unix style "homedir"
+ if (substr($this->cmd, 0, 1) === '~') {
+ $this->cmd = 'profile/' . substr($this->cmd, 1);
+ }
+
+ // Diaspora style profile url
+ if (substr($this->cmd, 0, 2) === 'u/') {
+ $this->cmd = 'profile/' . substr($this->cmd, 2);
+ }
+
+ /*
+ * Break the URL path into C style argc/argv style arguments for our
+ * modules. Given "http://example.com/module/arg1/arg2", $this->argc
+ * will be 3 (integer) and $this->argv will contain:
+ * [0] => 'module'
+ * [1] => 'arg1'
+ * [2] => 'arg2'
+ *
+ *
+ * There will always be one argument. If provided a naked domain
+ * URL, $this->argv[0] is set to "home".
+ */
+
+ $this->argv = explode('/', $this->cmd);
+ $this->argc = count($this->argv);
+ if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
+ $this->module = str_replace('.', '_', $this->argv[0]);
+ $this->module = str_replace('-', '_', $this->module);
+ } else {
+ $this->argc = 1;
+ $this->argv = array('home');
+ $this->module = 'home';
+ }
+
+ // See if there is any page number information, and initialise pagination
+ $this->pager['page'] = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
+ $this->pager['itemspage'] = 50;
+ $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
+
+ if ($this->pager['start'] < 0) {
+ $this->pager['start'] = 0;
+ }
+ $this->pager['total'] = 0;
+
+ // Detect mobile devices
+ $mobile_detect = new MobileDetect();
+ $this->is_mobile = $mobile_detect->isMobile();
+ $this->is_tablet = $mobile_detect->isTablet();
+
+ // Friendica-Client
+ $this->is_friendica_app = ($_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)');
+
+ // Register template engines
+ $dc = get_declared_classes();
+ foreach ($dc as $k) {
+ if (in_array('ITemplateEngine', class_implements($k))) {
+ $this->register_template_engine($k);
+ }
+ }
+
+ self::$a = $this;
+ }
+
+ /**
+ * @brief Returns the base filesystem path of the App
+ *
+ * It first checks for the internal variable, then for DOCUMENT_ROOT and
+ * finally for PWD
+ *
+ * @return string
+ */
+ public static function get_basepath() {
+ if (isset($this)) {
+ $basepath = $this->basepath;
+ }
+
+ if (! $basepath) {
+ $basepath = Config::get('system', 'basepath');
+ }
+
+ if (! $basepath && x($_SERVER, 'DOCUMENT_ROOT')) {
+ $basepath = $_SERVER['DOCUMENT_ROOT'];
+ }
+
+ if (! $basepath && x($_SERVER, 'PWD')) {
+ $basepath = $_SERVER['PWD'];
+ }
+
+ return self::realpath($basepath);
+ }
+
+ /**
+ * @brief Returns a normalized file path
+ *
+ * This is a wrapper for the "realpath" function.
+ * That function cannot detect the real path when some folders aren't readable.
+ * Since this could happen with some hosters we need to handle this.
+ *
+ * @param string $path The path that is about to be normalized
+ * @return string normalized path - when possible
+ */
+ public static function realpath($path) {
+ $normalized = realpath($path);
+
+ if (!is_bool($normalized)) {
+ return $normalized;
+ } else {
+ return $path;
+ }
+ }
+
+ function get_scheme() {
+ return $this->scheme;
+ }
+
+ /**
+ * @brief Retrieves the Friendica instance base URL
+ *
+ * This function assembles the base URL from multiple parts:
+ * - Protocol is determined either by the request or a combination of
+ * system.ssl_policy and the $ssl parameter.
+ * - Host name is determined either by system.hostname or inferred from request
+ * - Path is inferred from SCRIPT_NAME
+ *
+ * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
+ *
+ * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
+ * @return string Friendica server base URL
+ */
+ function get_baseurl($ssl = false) {
+ $scheme = $this->scheme;
+
+ if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
+ $scheme = 'https';
+ }
+
+ // Basically, we have $ssl = true on any links which can only be seen by a logged in user
+ // (and also the login link). Anything seen by an outsider will have it turned off.
+
+ if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
+ if ($ssl) {
+ $scheme = 'https';
+ } else {
+ $scheme = 'http';
+ }
+ }
+
+ if (Config::get('config', 'hostname') != '') {
+ $this->hostname = Config::get('config', 'hostname');
+ }
+
+ return $scheme . '://' . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
+ }
+
+ /**
+ * @brief Initializes the baseurl components
+ *
+ * Clears the baseurl cache to prevent inconstistencies
+ *
+ * @param string $url
+ */
+ function set_baseurl($url) {
+ $parsed = @parse_url($url);
+
+ if ($parsed) {
+ $this->scheme = $parsed['scheme'];
+
+ $hostname = $parsed['host'];
+ if (x($parsed, 'port')) {
+ $hostname .= ':' . $parsed['port'];
+ }
+ if (x($parsed, 'path')) {
+ $this->path = trim($parsed['path'], '\\/');
+ }
+
+ if (file_exists('.htpreconfig.php')) {
+ include '.htpreconfig.php';
+ }
+
+ if (Config::get('config', 'hostname') != '') {
+ $this->hostname = Config::get('config', 'hostname');
+ }
+
+ if (!isset($this->hostname) || ( $this->hostname == '')) {
+ $this->hostname = $hostname;
+ }
+ }
+ }
+
+ function get_hostname() {
+ if (Config::get('config', 'hostname') != '') {
+ $this->hostname = Config::get('config', 'hostname');
+ }
+
+ return $this->hostname;
+ }
+
+ function set_hostname($h) {
+ $this->hostname = $h;
+ }
+
+ function set_path($p) {
+ $this->path = trim(trim($p), '/');
+ }
+
+ function get_path() {
+ return $this->path;
+ }
+
+ function set_pager_total($n) {
+ $this->pager['total'] = intval($n);
+ }
+
+ function set_pager_itemspage($n) {
+ $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
+ $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
+ }
+
+ function set_pager_page($n) {
+ $this->pager['page'] = $n;
+ $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
+ }
+
+ function init_pagehead() {
+ $interval = ((local_user()) ? PConfig::get(local_user(), 'system', 'update_interval') : 40000);
+
+ // If the update is 'deactivated' set it to the highest integer number (~24 days)
+ if ($interval < 0) {
+ $interval = 2147483647;
+ }
+
+ if ($interval < 10000) {
+ $interval = 40000;
+ }
+
+ // compose the page title from the sitename and the
+ // current module called
+ if (!$this->module == '') {
+ $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
+ } else {
+ $this->page['title'] = $this->config['sitename'];
+ }
+
+ /* put the head template at the beginning of page['htmlhead']
+ * since the code added by the modules frequently depends on it
+ * being first
+ */
+ if (!isset($this->page['htmlhead'])) {
+ $this->page['htmlhead'] = '';
+ }
+
+ // If we're using Smarty, then doing replace_macros() will replace
+ // any unrecognized variables with a blank string. Since we delay
+ // replacing $stylesheet until later, we need to replace it now
+ // with another variable name
+ if ($this->theme['template_engine'] === 'smarty3') {
+ $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
+ } else {
+ $stylesheet = '$stylesheet';
+ }
+
+ $shortcut_icon = Config::get('system', 'shortcut_icon');
+ if ($shortcut_icon == '') {
+ $shortcut_icon = 'images/friendica-32.png';
+ }
+
+ $touch_icon = Config::get('system', 'touch_icon');
+ if ($touch_icon == '') {
+ $touch_icon = 'images/friendica-128.png';
+ }
+
+ // get data wich is needed for infinite scroll on the network page
+ $invinite_scroll = infinite_scroll_data($this->module);
+
+ $tpl = get_markup_template('head.tpl');
+ $this->page['htmlhead'] = replace_macros($tpl, array(
+ '$baseurl' => $this->get_baseurl(),
+ '$local_user' => local_user(),
+ '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
+ '$delitem' => t('Delete this item?'),
+ '$showmore' => t('show more'),
+ '$showfewer' => t('show fewer'),
+ '$update_interval' => $interval,
+ '$shortcut_icon' => $shortcut_icon,
+ '$touch_icon' => $touch_icon,
+ '$stylesheet' => $stylesheet,
+ '$infinite_scroll' => $invinite_scroll,
+ )) . $this->page['htmlhead'];
+ }
+
+ function init_page_end() {
+ if (!isset($this->page['end'])) {
+ $this->page['end'] = '';
+ }
+ $tpl = get_markup_template('end.tpl');
+ $this->page['end'] = replace_macros($tpl, array(
+ '$baseurl' => $this->get_baseurl()
+ )) . $this->page['end'];
+ }
+
+ function set_curl_code($code) {
+ $this->curl_code = $code;
+ }
+
+ function get_curl_code() {
+ return $this->curl_code;
+ }
+
+ function set_curl_content_type($content_type) {
+ $this->curl_content_type = $content_type;
+ }
+
+ function get_curl_content_type() {
+ return $this->curl_content_type;
+ }
+
+ function set_curl_headers($headers) {
+ $this->curl_headers = $headers;
+ }
+
+ function get_curl_headers() {
+ return $this->curl_headers;
+ }
+
+ function get_cached_avatar_image($avatar_image) {
+ return $avatar_image;
+ }
+
+ /**
+ * @brief Removes the baseurl from an url. This avoids some mixed content problems.
+ *
+ * @param string $orig_url
+ *
+ * @return string The cleaned url
+ */
+ function remove_baseurl($orig_url) {
+
+ // Remove the hostname from the url if it is an internal link
+ $nurl = normalise_link($orig_url);
+ $base = normalise_link($this->get_baseurl());
+ $url = str_replace($base . '/', '', $nurl);
+
+ // if it is an external link return the orignal value
+ if ($url == normalise_link($orig_url)) {
+ return $orig_url;
+ } else {
+ return $url;
+ }
+ }
+
+ /**
+ * @brief Register template engine class
+ *
+ * If $name is '', is used class static property $class::$name
+ *
+ * @param string $class
+ * @param string $name
+ */
+ function register_template_engine($class, $name = '') {
+ /// @TODO Really === and not just == ?
+ if ($name === '') {
+ $v = get_class_vars($class);
+ if (x($v, 'name'))
+ $name = $v['name'];
+ }
+ if ($name === '') {
+ echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
+ killme();
+ }
+ $this->template_engines[$name] = $class;
+ }
+
+ /**
+ * @brief Return template engine instance.
+ *
+ * If $name is not defined, return engine defined by theme,
+ * or default
+ *
+ * @param strin $name Template engine name
+ * @return object Template Engine instance
+ */
+ function template_engine($name = '') {
+ /// @TODO really type-check included?
+ if ($name !== '') {
+ $template_engine = $name;
+ } else {
+ $template_engine = 'smarty3';
+ if (x($this->theme, 'template_engine')) {
+ $template_engine = $this->theme['template_engine'];
+ }
+ }
+
+ if (isset($this->template_engines[$template_engine])) {
+ if (isset($this->template_engine_instance[$template_engine])) {
+ return $this->template_engine_instance[$template_engine];
+ } else {
+ $class = $this->template_engines[$template_engine];
+ $obj = new $class;
+ $this->template_engine_instance[$template_engine] = $obj;
+ return $obj;
+ }
+ }
+
+ echo "template engine <tt>$template_engine</tt> is not registered!\n";
+ killme();
+ }
+
+ /**
+ * @brief Returns the active template engine.
+ *
+ * @return string
+ */
+ function get_template_engine() {
+ return $this->theme['template_engine'];
+ }
+
+ function set_template_engine($engine = 'smarty3') {
+ $this->theme['template_engine'] = $engine;
+ }
+
+ function get_template_ldelim($engine = 'smarty3') {
+ return $this->ldelim[$engine];
+ }
+
+ function get_template_rdelim($engine = 'smarty3') {
+ return $this->rdelim[$engine];
+ }
+
+ function save_timestamp($stamp, $value) {
+ if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
+ return;
+ }
+
+ $duration = (float) (microtime(true) - $stamp);
+
+ if (!isset($this->performance[$value])) {
+ // Prevent ugly E_NOTICE
+ $this->performance[$value] = 0;
+ }
+
+ $this->performance[$value] += (float) $duration;
+ $this->performance['marktime'] += (float) $duration;
+
+ $callstack = $this->callstack();
+
+ if (!isset($this->callstack[$value][$callstack])) {
+ // Prevent ugly E_NOTICE
+ $this->callstack[$value][$callstack] = 0;
+ }
+
+ $this->callstack[$value][$callstack] += (float) $duration;
+ }
+
+ /**
+ * @brief Log active processes into the "process" table
+ */
+ function start_process() {
+ $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
+
+ $command = basename($trace[0]['file']);
+
+ $this->remove_inactive_processes();
+
+ dba::transaction();
+
+ $r = q('SELECT `pid` FROM `process` WHERE `pid` = %d', intval(getmypid()));
+ if (!dbm::is_result($r)) {
+ dba::insert('process', array('pid' => getmypid(), 'command' => $command, 'created' => datetime_convert()));
+ }
+ dba::commit();
+ }
+
+ /**
+ * @brief Remove inactive processes
+ */
+ function remove_inactive_processes() {
+ dba::transaction();
+
+ $r = q('SELECT `pid` FROM `process`');
+ if (dbm::is_result($r)) {
+ foreach ($r AS $process) {
+ if (!posix_kill($process['pid'], 0)) {
+ q('DELETE FROM `process` WHERE `pid` = %d', intval($process['pid']));
+ }
+ }
+ }
+ dba::commit();
+ }
+
+ /**
+ * @brief Remove the active process from the "process" table
+ */
+ function end_process() {
+ q('DELETE FROM `process` WHERE `pid` = %d', intval(getmypid()));
+ }
+
+ /**
+ * @brief Returns a string with a callstack. Can be used for logging.
+ *
+ * @return string
+ */
+ function callstack($depth = 4) {
+ $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $depth + 2);
+
+ // We remove the first two items from the list since they contain data that we don't need.
+ array_shift($trace);
+ array_shift($trace);
+
+ $callstack = array();
+ foreach ($trace AS $func) {
+ if (!empty($func['class'])) {
+ $callstack[] = $func['class'].'::'.$func['function'];
+ } else {
+ $callstack[] = $func['function'];
+ }
+ }
+
+ return implode(', ', $callstack);
+ }
+
+ function get_useragent() {
+ return
+ FRIENDICA_PLATFORM . " '" .
+ FRIENDICA_CODENAME . "' " .
+ FRIENDICA_VERSION . '-' .
+ DB_UPDATE_VERSION . '; ' .
+ $this->get_baseurl();
+ }
+
+ function is_friendica_app() {
+ return $this->is_friendica_app;
+ }
+
+ /**
+ * @brief Checks if the site is called via a backend process
+ *
+ * This isn't a perfect solution. But we need this check very early.
+ * So we cannot wait until the modules are loaded.
+ *
+ * @return bool Is it a known backend?
+ */
+ function is_backend() {
+ static $backends = array();
+ $backends[] = '_well_known';
+ $backends[] = 'api';
+ $backends[] = 'dfrn_notify';
+ $backends[] = 'fetch';
+ $backends[] = 'hcard';
+ $backends[] = 'hostxrd';
+ $backends[] = 'nodeinfo';
+ $backends[] = 'noscrape';
+ $backends[] = 'p';
+ $backends[] = 'poco';
+ $backends[] = 'post';
+ $backends[] = 'proxy';
+ $backends[] = 'pubsub';
+ $backends[] = 'pubsubhubbub';
+ $backends[] = 'receive';
+ $backends[] = 'rsd_xml';
+ $backends[] = 'salmon';
+ $backends[] = 'statistics_json';
+ $backends[] = 'xrd';
+
+ // Check if current module is in backend or backend flag is set
+ return (in_array($this->module, $backends) || $this->backend);
+ }
+
+ /**
+ * @brief Checks if the maximum number of database processes is reached
+ *
+ * @return bool Is the limit reached?
+ */
+ function max_processes_reached() {
+ // Deactivated, needs more investigating if this check really makes sense
+ return false;
+
+ if ($this->is_backend()) {
+ $process = 'backend';
+ $max_processes = Config::get('system', 'max_processes_backend');
+ if (intval($max_processes) == 0) {
+ $max_processes = 5;
+ }
+ } else {
+ $process = 'frontend';
+ $max_processes = Config::get('system', 'max_processes_frontend');
+ if (intval($max_processes) == 0) {
+ $max_processes = 20;
+ }
+ }
+
+ $processlist = dbm::processlist();
+ if ($processlist['list'] != '') {
+ logger('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], LOGGER_DEBUG);
+
+ if ($processlist['amount'] > $max_processes) {
+ logger('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', LOGGER_DEBUG);
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @brief Checks if the minimal memory is reached
+ *
+ * @return bool Is the memory limit reached?
+ */
+ public function min_memory_reached() {
+ $min_memory = Config::get('system', 'min_memory', 0);
+ if ($min_memory == 0) {
+ return false;
+ }
+
+ if (!is_readable('/proc/meminfo')) {
+ return false;
+ }
+
+ $memdata = explode("\n", file_get_contents('/proc/meminfo'));
+
+ $meminfo = array();
+ foreach ($memdata as $line) {
+ list($key, $val) = explode(':', $line);
+ $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
+ $meminfo[$key] = (int) ($meminfo[$key] / 1024);
+ }
+
+ if (!isset($meminfo['MemAvailable']) || ! isset($meminfo['MemFree'])) {
+ return false;
+ }
+
+ $free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
+
+ $reached = ($free < $min_memory);
+
+ if ($reached) {
+ logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);
+ }
+
+ return $reached;
+ }
+
+ /**
+ * @brief Checks if the maximum load is reached
+ *
+ * @return bool Is the load reached?
+ */
+ function maxload_reached() {
+
+ if ($this->is_backend()) {
+ $process = 'backend';
+ $maxsysload = intval(Config::get('system', 'maxloadavg'));
+ if ($maxsysload < 1) {
+ $maxsysload = 50;
+ }
+ } else {
+ $process = 'frontend';
+ $maxsysload = intval(Config::get('system', 'maxloadavg_frontend'));
+ if ($maxsysload < 1) {
+ $maxsysload = 50;
+ }
+ }
+
+ $load = current_load();
+ if ($load) {
+ if (intval($load) > $maxsysload) {
+ logger('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
+ return true;
+ }
+ }
+ return false;
+ }
+
+ function proc_run($args) {
+
+ if (!function_exists('proc_open')) {
+ return;
+ }
+
+ // If the last worker fork was less than 2 seconds before then don't fork another one.
+ // This should prevent the forking of masses of workers.
+ $cachekey = 'app:proc_run:started';
+ $result = Cache::get($cachekey);
+
+ if (!is_null($result) && ( time() - $result) < 2) {
+ return;
+ }
+
+ // Set the timestamp of the last proc_run
+ Cache::set($cachekey, time(), CACHE_MINUTE);
+
+ array_unshift($args, ((x($this->config, 'php_path')) && (strlen($this->config['php_path'])) ? $this->config['php_path'] : 'php'));
+
+ // add baseurl to args. cli scripts can't construct it
+ $args[] = $this->get_baseurl();
+
+ for ($x = 0; $x < count($args); $x ++) {
+ $args[$x] = escapeshellarg($args[$x]);
+ }
+
+ $cmdline = implode($args, ' ');
+
+ if ($this->min_memory_reached()) {
+ return;
+ }
+
+ if (Config::get('system', 'proc_windows')) {
+ $resource = proc_open('cmd /c start /b ' . $cmdline, array(), $foo, $this->get_basepath());
+ } else {
+ $resource = proc_open($cmdline . ' &', array(), $foo, $this->get_basepath());
+ }
+ if (!is_resource($resource)) {
+ logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);
+ return;
+ }
+ proc_close($resource);
+ }
+
+ /**
+ * @brief Returns the system user that is executing the script
+ *
+ * This mostly returns something like "www-data".
+ *
+ * @return string system username
+ */
+ static function systemuser() {
+ if (!function_exists('posix_getpwuid') || ! function_exists('posix_geteuid')) {
+ return '';
+ }
+
+ $processUser = posix_getpwuid(posix_geteuid());
+ return $processUser['name'];
+ }
+
+ /**
+ * @brief Checks if a given directory is usable for the system
+ *
+ * @return boolean the directory is usable
+ */
+ static function directory_usable($directory, $check_writable = true) {
+ if ($directory == '') {
+ logger('Directory is empty. This shouldn\'t happen.', LOGGER_DEBUG);
+ return false;
+ }
+
+ if (!file_exists($directory)) {
+ logger('Path "' . $directory . '" does not exist for user ' . self::systemuser(), LOGGER_DEBUG);
+ return false;
+ }
+ if (is_file($directory)) {
+ logger('Path "' . $directory . '" is a file for user ' . self::systemuser(), LOGGER_DEBUG);
+ return false;
+ }
+ if (!is_dir($directory)) {
+ logger('Path "' . $directory . '" is not a directory for user ' . self::systemuser(), LOGGER_DEBUG);
+ return false;
+ }
+ if ($check_writable && !is_writable($directory)) {
+ logger('Path "' . $directory . '" is not writable for user ' . self::systemuser(), LOGGER_DEBUG);
+ return false;
+ }
+ return true;
+ }
+}
projects / friendica.git / blobdiff