include/sanity_check.php

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  37                         $err_msg = "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh";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