include/sanity_check.php

   1 <?php
   2         require_once "functions.php";
   3
   4         function initial_sanity_check($link) {
   5
   6                 $errors = array();
   7
   8                 if (!file_exists("config.php")) {
   9                         array_push($errors, "Configuration file not found. Looks like you forgot to copy config.php-dist to config.php and edit it.");
  10                 } else {
  11
  12                         define('EXPECTED_CONFIG_VERSION', 25);
  13                         define('SCHEMA_VERSION', 92);
  14
  15                         require_once "config.php";
  16                         require_once "sanity_config.php";
  17
  18                         if (function_exists('posix_getuid') && posix_getuid() == 0) {
  19                                 array_push($errors, "Please don't run this script as root.");
  20                         }
  21
  22                         if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) {
  23                                 $array_push($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.");
  24                         }
  25
  26                         $purifier_cache_dir = CACHE_DIR . "/htmlpurifier";
  27
  28                         if (!is_writable($purifier_cache_dir)) {
  29                                 array_push($errors, "HTMLPurifier cache directory should be writable by anyone (chmod -R 777 $purifier_cache_dir)");
  30                         }
  31
  32                         if (!is_writable(CACHE_DIR . "/images")) {
  33                                 array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)");
  34                         }
  35
  36                         if (!is_writable(CACHE_DIR . "/export")) {
  37                                 array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)");
  38                         }
  39
  40                         if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) {
  41                                 array_push($errors,
  42                                         "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh");
  43                         }
  44
  45                         foreach ($requred_defines as $d) {
  46                                 if (!defined($d)) {
  47                                         array_push($errors,
  48                                                 "Required configuration file parameter $d is not defined in config.php. You might need to copy it from config.php-dist.");
  49                                 }
  50                         }
  51
  52                         if (SESSION_EXPIRE_TIME < 60) {
  53                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php is too low, please set it to an integer value >= 60");
  54                         }
  55
  56                         if (SESSION_EXPIRE_TIME < SESSION_COOKIE_LIFETIME) {
  57                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php should be >= to SESSION_COOKIE_LIFETIME");
  58                         }
  59
  60                         if (SINGLE_USER_MODE) {
  61                                 $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  62
  63                                 if ($link) {
  64                                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE id = 1");
  65
  66                                         if (db_num_rows($result) != 1) {
  67                                                 array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found.");
  68                                         }
  69                                 }
  70                         }
  71
  72                         if (SELF_URL_PATH == "http://yourserver/tt-rss/") {
  73                                 if ($_SERVER['HTTP_REFERER']) {
  74                                         array_push($errors,
  75                                                 "Please set SELF_URL_PATH to the correct value for your server (possible value: <b>" . $_SERVER['HTTP_REFERER'] . "</b>)");
  76                                 } else {
  77                                         array_push($errors, "Please set SELF_URL_PATH to the correct value for your server.");
  78                                 }
  79                         }
  80
  81                         if (!is_writable(ICONS_DIR)) {
  82                                 array_push($errors, "ICONS_DIR defined in config.php is not writable (chmod -R 777 ".ICONS_DIR.").\n");
  83                         }
  84
  85                         if (!is_writable(LOCK_DIRECTORY)) {
  86                                 array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n");
  87                         }
  88
  89                         if (ini_get("open_basedir")) {
  90                                 array_push($errors, "PHP configuration option open_basedir is not supported. Please disable this in PHP settings file (php.ini).");
  91                         }
  92
  93                         if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) {
  94                                 array_push($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.");
  95                         }
  96
  97                         if (!function_exists("json_encode")) {
  98                                 array_push($errors, "PHP support for JSON is required, but was not found.");
  99                         }
 100
 101                         if (DB_TYPE == "mysql" && !function_exists("mysql_connect")) {
 102                                 array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php.");
 103                         }
 104
 105                         if (DB_TYPE == "pgsql" && !function_exists("pg_connect")) {
 106                                 array_push($errors, "PHP support for PostgreSQL is required for configured DB_TYPE in config.php");
 107                         }
 108
 109                         if (!function_exists("mb_strlen")) {
 110                                 array_push($errors, "PHP support for mbstring functions is required but was not found.");
 111                         }
 112
 113                         if (!function_exists("hash")) {
 114                                 array_push($errors, "PHP support for hash() function is required but was not found.");
 115                         }
 116
 117                         if (!function_exists("ctype_lower")) {
 118                                 array_push($errors, "PHP support for ctype functions are required by HTMLPurifier.");
 119                         }
 120
 121                         if (ini_get("safe_mode")) {
 122                                 array_push($errors, "PHP safe mode setting is not supported.");
 123                         }
 124
 125                         if ((PUBSUBHUBBUB_HUB || PUBSUBHUBBUB_ENABLED) && !function_exists("curl_init")) {
 126                                 array_push($errors, "PHP support for CURL is required for PubSubHubbub.");
 127                         }
 128
 129                         if (!class_exists("DOMDocument")) {
 130                                 array_push($errors, "PHP support for DOMDocument is required, but was not found.");
 131                         }
 132                 }
 133
 134                 if (count($errors) > 0 && $_SERVER['REQUEST_URI']) { ?>
 135                         <html>
 136                         <head>
 137                         <title>Startup failed</title>
 138                                 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 139                                 <link rel="stylesheet" type="text/css" href="utility.css">
 140                         </head>
 141                 <body>
 142                 <div class="floatingLogo"><img src="images/logo_wide.png"></div>
 143
 144                         <h1>Startup failed</h1>
 145
 146                         <p>Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade. Please fix
 147                         errors indicated by the following messages:</p>
 148
 149                         <?php foreach ($errors as $error) { echo format_error($error); } ?>
 150
 151                         <p>You might want to check tt-rss <a href="http://tt-rss.org/wiki">wiki</a> or the
 152                                 <a href="http://tt-rss.org/forum">forums</a> for more information. Please search the forums before creating new topic
 153                                 for your question.</p>
 154                 </body>
 155                 </html>
 156
 157                 <?php
 158                         die;
 159                 } else if (count($errors) > 0) {
 160                         echo "Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade.\n";
 161                         echo "Please fix errors indicated by the following messages:\n\n";
 162
 163                         foreach ($errors as $error) {
 164                                 echo " * $error\n";
 165                         }
 166
 167                         echo "\nYou might want to check tt-rss wiki or the forums for more information.\n";
 168                         echo "Please search the forums before creating new topic for your question.\n";
 169
 170                         exit(-1);
 171                 }
 172         }
 173
 174         initial_sanity_check($link);
 175
 176 ?>