<?php /* WARNING! * * If you modify this file, you are ON YOUR OWN! * * Believe it or not, all of the checks below are required to succeed for * tt-rss to actually function properly. * * If you think you have a better idea about what is or isn't required, feel * free to modify the file, note though that you are therefore automatically * disqualified from any further support by official channels, e.g. tt-rss.org * issue tracker or the forums. * * If you come crying when stuff inevitably breaks, you will be mocked and told * to get out. */ function make_self_url() { $proto = is_server_https() ? 'https' : 'http'; return $proto . '://' . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"]; } function make_self_url_path() { $proto = is_server_https() ? 'https' : 'http'; $url_path = $proto . '://' . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH); return $url_path; } function check_mysql_tables() { $pdo = Db::pdo(); $sth = $pdo->prepare("SELECT engine, table_name FROM information_schema.tables WHERE table_schema = ? AND table_name LIKE 'ttrss_%' AND engine != 'InnoDB'"); $sth->execute([DB_NAME]); $bad_tables = []; while ($line = $sth->fetch()) { array_push($bad_tables, $line); } return $bad_tables; } /** * @SuppressWarnings(PHPMD.UnusedLocalVariable) */ function initial_sanity_check() { $errors = array(); if (!file_exists("config.php")) { array_push($errors, "Configuration file not found. Looks like you forgot to copy config.php-dist to config.php and edit it."); } else { require_once "sanity_config.php"; if (file_exists("install") && !file_exists("config.php")) { array_push($errors, "Please copy config.php-dist to config.php or run the installer in install/"); } if (strpos(PLUGINS, "auth_") === FALSE) { array_push($errors, "Please enable at least one authentication module via PLUGINS constant in config.php"); } if (function_exists('posix_getuid') && posix_getuid() == 0) { array_push($errors, "Please don't run this script as root."); } if (version_compare(PHP_VERSION, '5.6.0', '<')) { array_push($errors, "PHP version 5.6.0 or newer required. You're using " . PHP_VERSION . "."); } if (!class_exists("UConverter")) { array_push($errors, "PHP UConverter class is missing, it's provided by the Internationalization (intl) module."); } if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) { array_push($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."); } if (!is_writable(CACHE_DIR . "/images")) { array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)"); } if (!is_writable(CACHE_DIR . "/upload")) { array_push($errors, "Upload cache is not writable (chmod -R 777 ".CACHE_DIR."/upload)"); } if (!is_writable(CACHE_DIR . "/export")) { array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)"); } if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) { array_push($errors, "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh"); } foreach ($required_defines as $d) { if (!defined($d)) { array_push($errors, "Required configuration file parameter $d is not defined in config.php. You might need to copy it from config.php-dist."); } } if (SINGLE_USER_MODE && class_exists("PDO")) { $pdo = DB::pdo(); $res = $pdo->query("SELECT id FROM ttrss_users WHERE id = 1"); if (!$res->fetch()) { array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found."); } } $ref_self_url_path = make_self_url_path(); $ref_self_url_path = preg_replace("/\w+\.php$/", "", $ref_self_url_path); if (SELF_URL_PATH == "http://example.org/tt-rss/") { array_push($errors, "Please set SELF_URL_PATH to the correct value for your server (possible value: <b>$ref_self_url_path</b>)"); } if (isset($_SERVER["HTTP_HOST"]) && (!defined('_SKIP_SELF_URL_PATH_CHECKS') || !_SKIP_SELF_URL_PATH_CHECKS) && SELF_URL_PATH != $ref_self_url_path && SELF_URL_PATH != mb_substr($ref_self_url_path, 0, mb_strlen($ref_self_url_path)-1)) { array_push($errors, "Please set SELF_URL_PATH to the correct value detected for your server: <b>$ref_self_url_path</b>"); } if (!is_writable(ICONS_DIR)) { array_push($errors, "ICONS_DIR defined in config.php is not writable (chmod -R 777 ".ICONS_DIR.").\n"); } if (!is_writable(LOCK_DIRECTORY)) { array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n"); } if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) { array_push($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."); } if (!function_exists("json_encode")) { array_push($errors, "PHP support for JSON is required, but was not found."); } if (DB_TYPE == "mysql" && !function_exists("mysqli_connect")) { array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php."); } if (DB_TYPE == "pgsql" && !function_exists("pg_connect")) { array_push($errors, "PHP support for PostgreSQL is required for configured DB_TYPE in config.php"); } if (!class_exists("PDO")) { array_push($errors, "PHP support for PDO is required but was not found."); } if (!function_exists("mb_strlen")) { array_push($errors, "PHP support for mbstring functions is required but was not found."); } if (!function_exists("hash")) { array_push($errors, "PHP support for hash() function is required but was not found."); } if (ini_get("safe_mode")) { array_push($errors, "PHP safe mode setting is obsolete and not supported by tt-rss."); } if (!function_exists("mime_content_type")) { array_push($errors, "PHP function mime_content_type() is missing, try enabling fileinfo module."); } if (!class_exists("DOMDocument")) { array_push($errors, "PHP support for DOMDocument is required, but was not found."); } if (DB_TYPE == "mysql") { $bad_tables = check_mysql_tables(); if (count($bad_tables) > 0) { $bad_tables_fmt = []; foreach ($bad_tables as $bt) { array_push($bad_tables_fmt, sprintf("%s (%s)", $bt['table_name'], $bt['engine'])); } $msg = "<p>The following tables use an unsupported MySQL engine: <b>" . implode(", ", $bad_tables_fmt) . "</b>.</p>"; $msg .= "<p>The only supported engine on MySQL is InnoDB. MyISAM lacks functionality to run tt-rss. Please backup your data (via OPML) and re-import the schema before continuing.</p> <p><b>WARNING: importing the schema would mean LOSS OF ALL YOUR DATA.</b></p>"; array_push($errors, $msg); } } } if (count($errors) > 0 && $_SERVER['REQUEST_URI']) { ?> <!DOCTYPE html> <html> <head> <title>Startup failed</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link rel="stylesheet" type="text/css" href="themes/light.css"> </head> <body class='sanity_failed claro ttrss_utility'> <div class="content"> <h1>Startup failed</h1> <p>Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade. Please fix errors indicated by the following messages:</p> <?php foreach ($errors as $error) { echo format_error($error); } ?> <p>You might want to check tt-rss <a href="https://tt-rss.org/wiki.php">wiki</a> or the <a href="https://community.tt-rss.org/">forums</a> for more information. Please search the forums before creating new topic for your question.</p> </div> </body> </html> <?php die; } else if (count($errors) > 0) { echo "Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade.\n"; echo "Please fix errors indicated by the following messages:\n\n"; foreach ($errors as $error) { echo " * $error\n"; } echo "\nYou might want to check tt-rss wiki or the forums for more information.\n"; echo "Please search the forums before creating new topic for your question.\n"; exit(-1); } } initial_sanity_check(); ?>