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1 | <?php | |
2 | /* WARNING! | |
3 | * | |
4 | * If you modify this file, you are ON YOUR OWN! | |
5 | * | |
6 | * Believe it or not, all of the checks below are required to succeed for | |
7 | * tt-rss to actually function properly. | |
8 | * | |
9 | * If you think you have a better idea about what is or isn't required, feel | |
10 | * free to modify the file, note though that you are therefore automatically | |
11 | * disqualified from any further support by official channels, e.g. tt-rss.org | |
12 | * issue tracker or the forums. | |
13 | * | |
14 | * If you come crying when stuff inevitably breaks, you will be mocked and told | |
15 | * to get out. */ | |
16 | ||
17 | function make_self_url_path() { | |
18 | $proto = is_server_https() ? 'https' : 'http'; | |
19 | $url_path = $proto . '://' . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH); | |
20 | ||
21 | return $url_path; | |
22 | } | |
23 | ||
24 | /** | |
25 | * @SuppressWarnings(PHPMD.UnusedLocalVariable) | |
26 | */ | |
27 | function initial_sanity_check() { | |
28 | ||
29 | $errors = array(); | |
30 | ||
31 | if (!file_exists("config.php")) { | |
32 | array_push($errors, "Configuration file not found. Looks like you forgot to copy config.php-dist to config.php and edit it."); | |
33 | } else { | |
34 | ||
35 | require_once "sanity_config.php"; | |
36 | ||
37 | if (file_exists("install") && !file_exists("config.php")) { | |
38 | array_push($errors, "Please copy config.php-dist to config.php or run the installer in install/"); | |
39 | } | |
40 | ||
41 | if (strpos(PLUGINS, "auth_") === FALSE) { | |
42 | array_push($errors, "Please enable at least one authentication module via PLUGINS constant in config.php"); | |
43 | } | |
44 | ||
45 | if (function_exists('posix_getuid') && posix_getuid() == 0) { | |
46 | array_push($errors, "Please don't run this script as root."); | |
47 | } | |
48 | ||
49 | if (version_compare(PHP_VERSION, '5.6.0', '<')) { | |
50 | array_push($errors, "PHP version 5.6.0 or newer required. You're using " . PHP_VERSION . "."); | |
51 | } | |
52 | ||
53 | if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) { | |
54 | array_push($errors, "Configuration file (config.php) has incorrect version. Update it with new options from config.php-dist and set CONFIG_VERSION to the correct value."); | |
55 | } | |
56 | ||
57 | if (!is_writable(CACHE_DIR . "/images")) { | |
58 | array_push($errors, "Image cache is not writable (chmod -R 777 ".CACHE_DIR."/images)"); | |
59 | } | |
60 | ||
61 | if (!is_writable(CACHE_DIR . "/upload")) { | |
62 | array_push($errors, "Upload cache is not writable (chmod -R 777 ".CACHE_DIR."/upload)"); | |
63 | } | |
64 | ||
65 | if (!is_writable(CACHE_DIR . "/export")) { | |
66 | array_push($errors, "Data export cache is not writable (chmod -R 777 ".CACHE_DIR."/export)"); | |
67 | } | |
68 | ||
69 | if (!is_writable(CACHE_DIR . "/js")) { | |
70 | array_push($errors, "Javascript cache is not writable (chmod -R 777 ".CACHE_DIR."/js)"); | |
71 | } | |
72 | ||
73 | if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) { | |
74 | array_push($errors, | |
75 | "Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh"); | |
76 | } | |
77 | ||
78 | foreach ($required_defines as $d) { | |
79 | if (!defined($d)) { | |
80 | array_push($errors, | |
81 | "Required configuration file parameter $d is not defined in config.php. You might need to copy it from config.php-dist."); | |
82 | } | |
83 | } | |
84 | ||
85 | if (SINGLE_USER_MODE && class_exists("PDO")) { | |
86 | $pdo = DB::pdo(); | |
87 | ||
88 | $res = $pdo->query("SELECT id FROM ttrss_users WHERE id = 1"); | |
89 | ||
90 | if (!$res->fetch()) { | |
91 | array_push($errors, "SINGLE_USER_MODE is enabled in config.php but default admin account is not found."); | |
92 | } | |
93 | } | |
94 | ||
95 | $ref_self_url_path = make_self_url_path(); | |
96 | $ref_self_url_path = preg_replace("/\w+\.php$/", "", $ref_self_url_path); | |
97 | ||
98 | if (SELF_URL_PATH == "http://example.org/tt-rss/") { | |
99 | array_push($errors, | |
100 | "Please set SELF_URL_PATH to the correct value for your server (possible value: <b>$ref_self_url_path</b>)"); | |
101 | } | |
102 | ||
103 | if (isset($_SERVER["HTTP_HOST"]) && | |
104 | (!defined('_SKIP_SELF_URL_PATH_CHECKS') || !_SKIP_SELF_URL_PATH_CHECKS) && | |
105 | SELF_URL_PATH != $ref_self_url_path && SELF_URL_PATH != mb_substr($ref_self_url_path, 0, mb_strlen($ref_self_url_path)-1)) { | |
106 | array_push($errors, | |
107 | "Please set SELF_URL_PATH to the correct value detected for your server: <b>$ref_self_url_path</b>"); | |
108 | } | |
109 | ||
110 | if (!is_writable(ICONS_DIR)) { | |
111 | array_push($errors, "ICONS_DIR defined in config.php is not writable (chmod -R 777 ".ICONS_DIR.").\n"); | |
112 | } | |
113 | ||
114 | if (!is_writable(LOCK_DIRECTORY)) { | |
115 | array_push($errors, "LOCK_DIRECTORY defined in config.php is not writable (chmod -R 777 ".LOCK_DIRECTORY.").\n"); | |
116 | } | |
117 | ||
118 | if (!function_exists("curl_init") && !ini_get("allow_url_fopen")) { | |
119 | array_push($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."); | |
120 | } | |
121 | ||
122 | if (!function_exists("json_encode")) { | |
123 | array_push($errors, "PHP support for JSON is required, but was not found."); | |
124 | } | |
125 | ||
126 | if (DB_TYPE == "mysql" && !function_exists("mysqli_connect")) { | |
127 | array_push($errors, "PHP support for MySQL is required for configured DB_TYPE in config.php."); | |
128 | } | |
129 | ||
130 | if (DB_TYPE == "pgsql" && !function_exists("pg_connect")) { | |
131 | array_push($errors, "PHP support for PostgreSQL is required for configured DB_TYPE in config.php"); | |
132 | } | |
133 | ||
134 | if (!class_exists("PDO")) { | |
135 | array_push($errors, "PHP support for PDO is required but was not found."); | |
136 | } | |
137 | ||
138 | if (!function_exists("mb_strlen")) { | |
139 | array_push($errors, "PHP support for mbstring functions is required but was not found."); | |
140 | } | |
141 | ||
142 | if (!function_exists("hash")) { | |
143 | array_push($errors, "PHP support for hash() function is required but was not found."); | |
144 | } | |
145 | ||
146 | if (ini_get("safe_mode")) { | |
147 | array_push($errors, "PHP safe mode setting is obsolete and not supported by tt-rss."); | |
148 | } | |
149 | ||
150 | if (!function_exists("mime_content_type")) { | |
151 | array_push($errors, "PHP function mime_content_type() is missing, try enabling fileinfo module."); | |
152 | } | |
153 | ||
154 | if (!class_exists("DOMDocument")) { | |
155 | array_push($errors, "PHP support for DOMDocument is required, but was not found."); | |
156 | } | |
157 | ||
158 | if (DB_TYPE == "mysql") { | |
159 | $bad_tables = check_mysql_tables(); | |
160 | ||
161 | if (count($bad_tables) > 0) { | |
162 | $bad_tables_fmt = []; | |
163 | ||
164 | foreach ($bad_tables as $bt) { | |
165 | array_push($bad_tables_fmt, sprintf("%s (%s)", $bt['table_name'], $bt['engine'])); | |
166 | } | |
167 | ||
168 | $msg = "<p>The following tables use an unsupported MySQL engine: <b>" . | |
169 | implode(", ", $bad_tables_fmt) . "</b>.</p>"; | |
170 | ||
171 | $msg .= "<p>The only supported engine on MySQL is InnoDB. MyISAM lacks functionality to run | |
172 | tt-rss. | |
173 | Please backup your data (via OPML) and re-import the schema before continuing.</p> | |
174 | <p><b>WARNING: importing the schema would mean LOSS OF ALL YOUR DATA.</b></p>"; | |
175 | ||
176 | ||
177 | array_push($errors, $msg); | |
178 | } | |
179 | } | |
180 | } | |
181 | ||
182 | if (count($errors) > 0 && $_SERVER['REQUEST_URI']) { ?> | |
183 | <html> | |
184 | <head> | |
185 | <title>Startup failed</title> | |
186 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
187 | <link rel="stylesheet" type="text/css" href="css/default.css"> | |
188 | </head> | |
189 | <body class='sanity_failed claro ttrss_utility'> | |
190 | <div class="floatingLogo"><img src="images/logo_small.png"></div> | |
191 | <div class="content"> | |
192 | ||
193 | <h1>Startup failed</h1> | |
194 | ||
195 | <p>Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade. Please fix | |
196 | errors indicated by the following messages:</p> | |
197 | ||
198 | <?php foreach ($errors as $error) { echo format_error($error); } ?> | |
199 | ||
200 | <p>You might want to check tt-rss <a href="http://tt-rss.org/wiki">wiki</a> or the | |
201 | <a href="http://tt-rss.org/forum">forums</a> for more information. Please search the forums before creating new topic | |
202 | for your question.</p> | |
203 | ||
204 | </div> | |
205 | </body> | |
206 | </html> | |
207 | ||
208 | <?php | |
209 | die; | |
210 | } else if (count($errors) > 0) { | |
211 | echo "Tiny Tiny RSS was unable to start properly. This usually means a misconfiguration or an incomplete upgrade.\n"; | |
212 | echo "Please fix errors indicated by the following messages:\n\n"; | |
213 | ||
214 | foreach ($errors as $error) { | |
215 | echo " * $error\n"; | |
216 | } | |
217 | ||
218 | echo "\nYou might want to check tt-rss wiki or the forums for more information.\n"; | |
219 | echo "Please search the forums before creating new topic for your question.\n"; | |
220 | ||
221 | exit(-1); | |
222 | } | |
223 | } | |
224 | ||
225 | initial_sanity_check(); | |
226 | ||
227 | ?> |