include/sanity_check.php

   1 <?php
   2         function initial_sanity_check($link) {
   3
   4                 $errors = array();
   5
   6                 if (!file_exists("config.php")) {
   7                         array_push($errors, "Configuration file not found. Looks like you forgot to copy config.php-dist to config.php and edit it.");
   8                 } else {
   9
  10                         require_once "sanity_config.php";
  11
  12                         if (function_exists('posix_getuid') && posix_getuid() == 0) {
  13                                 array_push($errors, "Please don't run this script as root.");
  14                         }
  15
  16                         if (version_compare("5.2.0", phpversion()) == 1) {
  17                                 array_push($errors, "PHP version 5.2.0 or newer required.");
  18                         }
  19
  20                         if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) {
  21                                 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.");
  22                         }
  23
  24                         $purifier_cache_dir = CACHE_DIR . "/htmlpurifier";
  25
  26                         if (!is_writable($purifier_cache_dir)) {
  27                                 array_push($errors, "HTMLPurifier cache directory should be writable by anyone (chmod -R 777 $purifier_cache_dir)");
  28                         }
  29
  30                         if (!is_writable(CACHE_DIR . "/images")) {
  31                                 array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)");
  32                         }
  33
  34                         if (!is_writable(CACHE_DIR . "/export")) {
  35                                 array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)");
  36                         }
  37
  38                         if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) {
  39                                 array_push($errors,
  40                                         "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh");
  41                         }
  42
  43                         foreach ($requred_defines as $d) {
  44                                 if (!defined($d)) {
  45                                         array_push($errors,
  46                                                 "Required configuration file parameter $d is not defined in config.php. You might need to copy it from config.php-dist.");
  47                                 }
  48                         }
  49
  50                         if (SESSION_EXPIRE_TIME < 60) {
  51                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php is too low, please set it to an integer value >= 60");
  52                         }
  53
  54                         if (SESSION_EXPIRE_TIME < SESSION_COOKIE_LIFETIME) {
  55                                 array_push($errors, "SESSION_EXPIRE_TIME set in config.php should be >= to SESSION_COOKIE_LIFETIME");
  56                         }
  57
  58                         if (SINGLE_USER_MODE) {
  59                                 $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
  60
  61                                 if ($link) {
  62                                         $result = db_query($link, "SELECT id FROM ttrss_users WHERE id = 1");
  63
  64                                         if (db_num_rows($result) != 1) {
  65                                                 array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found.");
  66                                         }
  67                                 }
  68                         }
  69
  70                         if (SELF_URL_PATH == "http://yourserver/tt-rss/") {
  71                                 if ($_SERVER['HTTP_REFERER']) {
  72                                         array_push($errors,
  73                                                 "Please set SELF_URL_PATH to the correct value for your server (possible value: <b>" . $_SERVER['HTTP_REFERER'] . "</b>)");
  74                                 } else {
  75                                         array_push($errors, "Please set SELF_URL_PATH to the correct value for your server.");
  76                                 }
  77                         }
  78
  79                         if (!is_writable(ICONS_DIR)) {
  80                                 array_push($errors, "ICONS_DIR defined in config.php is not writable (chmod -R 777 ".ICONS_DIR.").\n");
  81                         }
  82
  83                         if (!is_writable(LOCK_DIRECTORY)) {
  84                                 array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n");
  85                         }
  86
  87                         if (ini_get("open_basedir")) {
  88                                 array_push($errors, "PHP configuration option open_basedir is not supported. Please disable this in PHP settings file (php.ini).");
  89                         }
  90
  91                         if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) {
  92                                 array_push($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.");
  93                         }
  94
  95                         if (!function_exists("json_encode")) {
  96                                 array_push($errors, "PHP support for JSON is required, but was not found.");
  97                         }
  98
  99                         if (DB_TYPE == "mysql" && !function_exists("mysql_connect")) {
 100                                 array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php.");
 101                         }
 102
 103                         if (DB_TYPE == "pgsql" && !function_exists("pg_connect")) {
 104                                 array_push($errors, "PHP support for PostgreSQL is required for configured DB_TYPE in config.php");
 105                         }
 106
 107                         if (!function_exists("mb_strlen")) {
 108                                 array_push($errors, "PHP support for mbstring functions is required but was not found.");
 109                         }
 110
 111                         if (!function_exists("hash")) {
 112                                 array_push($errors, "PHP support for hash() function is required but was not found.");
 113                         }
 114
 115                         if (!function_exists("ctype_lower")) {
 116                                 array_push($errors, "PHP support for ctype functions are required by HTMLPurifier.");
 117                         }
 118
 119                         if (ini_get("safe_mode")) {
 120                                 array_push($errors, "PHP safe mode setting is not supported.");
 121                         }
 122
 123                         if ((PUBSUBHUBBUB_HUB || PUBSUBHUBBUB_ENABLED) && !function_exists("curl_init")) {
 124                                 array_push($errors, "PHP support for CURL is required for PubSubHubbub.");
 125                         }
 126
 127                         if (!class_exists("DOMDocument")) {
 128                                 array_push($errors, "PHP support for DOMDocument is required, but was not found.");
 129                         }
 130                 }
 131
 132                 if (count($errors) > 0 && $_SERVER['REQUEST_URI']) { ?>
 133                         <html>
 134                         <head>
 135                         <title>Startup failed</title>
 136                                 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 137                                 <link rel="stylesheet" type="text/css" href="utility.css">
 138                         </head>
 139                 <body>
 140                 <div class="floatingLogo"><img src="images/logo_wide.png"></div>
 141
 142                         <h1>Startup failed</h1>
 143
 144                         <p>Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade. Please fix
 145                         errors indicated by the following messages:</p>
 146
 147                         <?php foreach ($errors as $error) { echo format_error($error); } ?>
 148
 149                         <p>You might want to check tt-rss <a href="http://tt-rss.org/wiki">wiki</a> or the
 150                                 <a href="http://tt-rss.org/forum">forums</a> for more information. Please search the forums before creating new topic
 151                                 for your question.</p>
 152                 </body>
 153                 </html>
 154
 155                 <?php
 156                         die;
 157                 } else if (count($errors) > 0) {
 158                         echo "Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade.\n";
 159                         echo "Please fix errors indicated by the following messages:\n\n";
 160
 161                         foreach ($errors as $error) {
 162                                 echo " * $error\n";
 163                         }
 164
 165                         echo "\nYou might want to check tt-rss wiki or the forums for more information.\n";
 166                         echo "Please search the forums before creating new topic for your question.\n";
 167
 168                         exit(-1);
 169                 }
 170         }
 171
 172         initial_sanity_check($link);
 173
 174 ?>