include/sanity_check.php

   1 <?php
   2         // WARNING: Don't ask for help on tt-rss.org forums or the bugtracker if you have
   3         // modified this file.
   4
   5         function initial_sanity_check($link) {
   6
   7                 $errors = array();
   8
   9                 if (!file_exists("config.php")) {
  10                         array_push($errors, "Configuration file not found. Looks like you forgot to copy config.php-dist to config.php and edit it.");
  11                 } else {
  12
  13                         require_once "sanity_config.php";
  14
  15                         if (strpos(PLUGINS, "auth_") === FALSE) {
  16                                 array_push($errors, "Please enable at least one authentication module via PLUGINS constant in config.php");
  17                         }
  18
  19                         if (function_exists('posix_getuid') && posix_getuid() == 0) {
  20                                 array_push($errors, "Please don't run this script as root.");
  21                         }
  22
  23                         if (version_compare("5.3.0", phpversion()) == 1) {
  24                                 array_push($errors, "PHP version 5.3.0 or newer required.");
  25                         }
  26
  27                         if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) {
  28                                 array_push($errors, "Configuration file (config.php) has incorrect version. Update it with new options from config.php-dist and set CONFIG_VERSION to the correct value.");
  29                         }
  30
  31                         if (!is_writable(CACHE_DIR . "/images")) {
  32                                 array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)");
  33                         }
  34
  35                         if (!is_writable(CACHE_DIR . "/export")) {
  36                                 array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)");
  37                         }
  38
  39                         if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) {
  40                                 array_push($errors,
  41                                         "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh");
  42                         }
  43
  44                         foreach ($requred_defines as $d) {
  45                                 if (!defined($d)) {
  46                                         array_push($errors,
  47                                                 "Required configuration file parameter $d is not defined in config.php. You might need to copy it from config.php-dist.");
  48                                 }
  49                         }
  50
  51                         if (SESSION_EXPIRE_TIME < 60) {
  52                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php is too low, please set it to an integer value >= 60");
  53                         }
  54
  55                         if (SESSION_EXPIRE_TIME < SESSION_COOKIE_LIFETIME) {
  56                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php should be >= to SESSION_COOKIE_LIFETIME");
  57                         }
  58
  59                         if (SINGLE_USER_MODE) {
  60                                 $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  61
  62                                 if ($link) {
  63                                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE id = 1");
  64
  65                                         if (db_num_rows($result) != 1) {
  66                                                 array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found.");
  67                                         }
  68                                 }
  69                         }
  70
  71                         if (SELF_URL_PATH == "http://yourserver/tt-rss/") {
  72                                 if ($_SERVER['HTTP_REFERER']) {
  73                                         array_push($errors,
  74                                                 "Please set SELF_URL_PATH to the correct value for your server (possible value: <b>" . $_SERVER['HTTP_REFERER'] . "</b>)");
  75                                 } else {
  76                                         array_push($errors, "Please set SELF_URL_PATH to the correct value for your server.");
  77                                 }
  78                         }
  79
  80                         if (!is_writable(ICONS_DIR)) {
  81                                 array_push($errors, "ICONS_DIR defined in config.php is not writable (chmod -R 777 ".ICONS_DIR.").\n");
  82                         }
  83
  84                         if (!is_writable(LOCK_DIRECTORY)) {
  85                                 array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n");
  86                         }
  87
  88                         if (ini_get("open_basedir")) {
  89                                 array_push($errors, "PHP configuration option open_basedir is not supported. Please disable this in PHP settings file (php.ini).");
  90                         }
  91
  92                         if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) {
  93                                 array_push($errors, "PHP configuration option allow_url_fopen is disabled, and CURL functions are not present. Either enable allow_url_fopen or install PHP extension for CURL.");
  94                         }
  95
  96                         if (!function_exists("json_encode")) {
  97                                 array_push($errors, "PHP support for JSON is required, but was not found.");
  98                         }
  99
 100                         if (DB_TYPE == "mysql" && !function_exists("mysql_connect")) {
 101                                 array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php.");
 102                         }
 103
 104                         if (DB_TYPE == "pgsql" && !function_exists("pg_connect")) {
 105                                 array_push($errors, "PHP support for PostgreSQL is required for configured DB_TYPE in config.php");
 106                         }
 107
 108                         if (!function_exists("mb_strlen")) {
 109                                 array_push($errors, "PHP support for mbstring functions is required but was not found.");
 110                         }
 111
 112                         if (!function_exists("hash")) {
 113                                 array_push($errors, "PHP support for hash() function is required but was not found.");
 114                         }
 115
 116                         if (!function_exists("ctype_lower")) {
 117                                 array_push($errors, "PHP support for ctype functions are required by HTMLPurifier.");
 118                         }
 119
 120                         if (ini_get("safe_mode")) {
 121                                 array_push($errors, "PHP safe mode setting is not supported.");
 122                         }
 123
 124                         if ((PUBSUBHUBBUB_HUB || PUBSUBHUBBUB_ENABLED) && !function_exists("curl_init")) {
 125                                 array_push($errors, "PHP support for CURL is required for PubSubHubbub.");
 126                         }
 127
 128                         if (!class_exists("DOMDocument")) {
 129                                 array_push($errors, "PHP support for DOMDocument is required, but was not found.");
 130                         }
 131                 }
 132
 133                 if (count($errors) > 0 && $_SERVER['REQUEST_URI']) { ?>
 134                         <html>
 135                         <head>
 136                         <title>Startup failed</title>
 137                                 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 138                                 <link rel="stylesheet" type="text/css" href="utility.css">
 139                         </head>
 140                 <body>
 141                 <div class="floatingLogo"><img src="images/logo_wide.png"></div>
 142
 143                         <h1>Startup failed</h1>
 144
 145                         <p>Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade. Please fix
 146                         errors indicated by the following messages:</p>
 147
 148                         <?php foreach ($errors as $error) { echo format_error($error); } ?>
 149
 150                         <p>You might want to check tt-rss <a href="http://tt-rss.org/wiki">wiki</a> or the
 151                                 <a href="http://tt-rss.org/forum">forums</a> for more information. Please search the forums before creating new topic
 152                                 for your question.</p>
 153                 </body>
 154                 </html>
 155
 156                 <?php
 157                         die;
 158                 } else if (count($errors) > 0) {
 159                         echo "Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade.\n";
 160                         echo "Please fix errors indicated by the following messages:\n\n";
 161
 162                         foreach ($errors as $error) {
 163                                 echo " * $error\n";
 164                         }
 165
 166                         echo "\nYou might want to check tt-rss wiki or the forums for more information.\n";
 167                         echo "Please search the forums before creating new topic for your question.\n";
 168
 169                         exit(-1);
 170                 }
 171         }
 172
 173         initial_sanity_check($link);
 174
 175 ?>