backend.php

   1 <?php
   2         set_include_path(get_include_path() . PATH_SEPARATOR .
   3                 dirname(__FILE__) . "/include");
   4
   5         /* remove ill effects of magic quotes */
   6
   7         if (get_magic_quotes_gpc()) {
   8                 function stripslashes_deep($value) {
   9                         $value = is_array($value) ?
  10                                 array_map('stripslashes_deep', $value) : stripslashes($value);
  11                                 return $value;
  12                 }
  13
  14                 $_POST = array_map('stripslashes_deep', $_POST);
  15                 $_GET = array_map('stripslashes_deep', $_GET);
  16                 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
  17                 $_REQUEST = array_map('stripslashes_deep', $_REQUEST);
  18         }
  19
  20         $op = $_REQUEST["op"];
  21         @$method = $_REQUEST['subop'] ? $_REQUEST['subop'] : $_REQUEST["method"];
  22
  23         if (!$method)
  24                 $method = 'index';
  25         else
  26                 $method = strtolower($method);
  27
  28         /* Public calls compatibility shim */
  29
  30         $public_calls = array("globalUpdateFeeds", "rss", "getUnread", "getProfiles", "share",
  31                 "fbexport", "logout", "pubsub");
  32
  33         if (array_search($op, $public_calls) !== false) {
  34                 header("Location: public.php?" . $_SERVER['QUERY_STRING']);
  35                 return;
  36         }
  37
  38         @$csrf_token = $_REQUEST['csrf_token'];
  39
  40         require_once "functions.php";
  41         require_once "sessions.php";
  42         require_once "sanity_check.php";
  43         require_once "config.php";
  44         require_once "db.php";
  45         require_once "db-prefs.php";
  46
  47         no_cache_incantation();
  48
  49         startup_gettext();
  50
  51         $script_started = getmicrotime();
  52
  53         $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  54
  55         if (!init_connection($link)) return;
  56
  57         header("Content-Type: text/plain; charset=utf-8");
  58
  59         if (ENABLE_GZIP_OUTPUT) {
  60                 ob_start("ob_gzhandler");
  61         }
  62
  63         if (SINGLE_USER_MODE) {
  64                 authenticate_user($link, "admin", null);
  65         }
  66
  67         // TODO remove and handle within Handlers
  68
  69         if (!($_SESSION["uid"] && validate_session($link))) {
  70                 if ($op == 'pref-feeds' && $method == 'add') {
  71                         header("Content-Type: text/html");
  72                         login_sequence($link);
  73                         render_login_form($link);
  74                 } else {
  75                         header("Content-Type: text/plain");
  76                         print json_encode(array("error" => array("code" => 6)));
  77                 }
  78                 return;
  79         }
  80
  81         $purge_intervals = array(
  82                 0  => __("Use default"),
  83                 -1 => __("Never purge"),
  84                 5  => __("1 week old"),
  85                 14 => __("2 weeks old"),
  86                 31 => __("1 month old"),
  87                 60 => __("2 months old"),
  88                 90 => __("3 months old"));
  89
  90         $update_intervals = array(
  91                 0   => __("Default interval"),
  92                 -1  => __("Disable updates"),
  93                 15  => __("Each 15 minutes"),
  94                 30  => __("Each 30 minutes"),
  95                 60  => __("Hourly"),
  96                 240 => __("Each 4 hours"),
  97                 720 => __("Each 12 hours"),
  98                 1440 => __("Daily"),
  99                 10080 => __("Weekly"));
 100
 101         $update_intervals_nodefault = array(
 102                 -1  => __("Disable updates"),
 103                 15  => __("Each 15 minutes"),
 104                 30  => __("Each 30 minutes"),
 105                 60  => __("Hourly"),
 106                 240 => __("Each 4 hours"),
 107                 720 => __("Each 12 hours"),
 108                 1440 => __("Daily"),
 109                 10080 => __("Weekly"));
 110
 111         $update_methods = array(
 112                 0   => __("Default"),
 113                 1   => __("Magpie"),
 114                 2   => __("SimplePie"),
 115                 3   => __("Twitter OAuth"));
 116
 117         if (DEFAULT_UPDATE_METHOD == "1") {
 118                 $update_methods[0] .= ' (SimplePie)';
 119         } else {
 120                 $update_methods[0] .= ' (Magpie)';
 121         }
 122
 123         $access_level_names = array(
 124                 0 => __("User"),
 125                 5 => __("Power User"),
 126                 10 => __("Administrator"));
 127
 128         $error = sanity_check($link);
 129
 130         if ($error['code'] != 0 && $op != "logout") {
 131                 print json_encode(array("error" => $error));
 132                 return;
 133         }
 134
 135         function __autoload($class) {
 136                 $file = "classes/".strtolower(basename($class)).".php";
 137                 if (file_exists($file)) {
 138                         require $file;
 139                 }
 140         }
 141
 142         $op = str_replace("-", "_", $op);
 143
 144         if (class_exists($op)) {
 145                 $handler = new $op($link, $_REQUEST);
 146
 147                 if ($handler) {
 148                         if (validate_csrf($csrf_token) || $handler->csrf_ignore($method)) {
 149                                 if ($handler->before($method)) {
 150                                         if ($method && method_exists($handler, $method)) {
 151                                                 $handler->$method();
 152                                         }
 153                                         $handler->after();
 154                                         return;
 155                                 }
 156                         } else {
 157                                 header("Content-Type: text/plain");
 158                                 print json_encode(array("error" => array("code" => 6)));
 159                                 return;
 160                         }
 161                 }
 162         }
 163
 164         header("Content-Type: text/plain");
 165         print json_encode(array("error" => array("code" => 7)));
 166
 167         // We close the connection to database.
 168         db_close($link);
 169 ?>