Support for noscrape when probing.

[friendica.git] / index.php

diff --git a/index.php b/index.php
index bf4ee378af840ccb0810f7cfa686921a251863ba..7b41403351610a8f8d899ee622c071ea120e8ead 100644 (file)
--- a/index.php
+++ b/index.php
@@ -19,6 +19,10 @@ require_once('object/BaseObject.php');
 $a = new App;
 BaseObject::set_app($a);
 
+// We assume that the index.php is called by a frontend process
+// The value is set to "true" by default in boot.php
+$a->backend = false;
+
 /**
  *
  * Load the configuration file which contains our DB credentials.
@@ -41,7 +45,6 @@ $install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false
  */
 
 require_once("include/dba.php");
-require_once("include/dbm.php");
 
 if(!$install) {
        $db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
@@ -54,36 +57,13 @@ if(!$install) {
        load_config('config');
        load_config('system');
 
-       $processlist = dbm::processlist();
-       if ($processlist["list"] != "") {
-
-               logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
-
-               $max_processes = get_config('system', 'max_processes_frontend');
-               if (intval($max_processes) == 0)
-                       $max_processes = 20;
-
-               if ($processlist["amount"] > $max_processes) {
-                       logger("Processcheck: Maximum number of processes for frontend tasks (".$max_processes.") reached.", LOGGER_DEBUG);
-                       system_unavailable();
-               }
-       }
-
-       $maxsysload_frontend = intval(get_config('system','maxloadavg_frontend'));
-       if($maxsysload_frontend < 1)
-               $maxsysload_frontend = 50;
-
-       $load = current_load();
-       if($load) {
-               if($load > $maxsysload_frontend) {
-                       logger('system: load ' . $load . ' too high. Service Temporarily Unavailable.');
-                       header($_SERVER["SERVER_PROTOCOL"].' 503 Service Temporarily Unavailable');
-                       header('Retry-After: 300');
-                       die("System is currently unavailable. Please try again later");
-               }
+       if ($a->max_processes_reached() OR $a->maxload_reached()) {
+               header($_SERVER["SERVER_PROTOCOL"].' 503 Service Temporarily Unavailable');
+               header('Retry-After: 120');
+               header('Refresh: 120; url='.$a->get_baseurl()."/".$a->query_string);
+               die("System is currently unavailable. Please try again later");
        }
 
-
        if (get_config('system','force_ssl') AND ($a->get_scheme() == "http") AND
                (intval(get_config('system','ssl_policy')) == SSL_POLICY_FULL) AND
                (substr($a->get_baseurl(), 0, 8) == "https://")) {
@@ -114,7 +94,12 @@ load_translation_table($lang);
  *
  */
 
-session_start();
+// Exclude the backend processes from the session management
+if (!$a->is_backend()) {
+       $stamp1 = microtime(true);
+       session_start();
+       $a->save_timestamp($stamp1, "parser");
+}
 
 /**
  * Language was set earlier, but we can over-ride it in the session.
@@ -124,7 +109,7 @@ if (x($_SESSION,'authenticated') && !x($_SESSION,'language')) {
        // we didn't loaded user data yet, but we need user language
        $r = q("SELECT language FROM user WHERE uid=%d", intval($_SESSION['uid']));
        $_SESSION['language'] = $lang;
-       if (count($r)>0) $_SESSION['language'] = $r[0]['language'];
+       if (dbm::is_result($r)) $_SESSION['language'] = $r[0]['language'];
 }
 
 if((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {