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45034273 | 1 | <?php |
49e2b35b | 2 | /** |
729d2671 | 3 | * Shaarli v0.6.3 - Shaare your links... |
49e2b35b V |
4 | * |
5 | * The personal, minimalist, super-fast, no-database Delicious clone. | |
6 | * | |
7 | * Friendly fork by the Shaarli community: | |
8 | * - https://github.com/shaarli/Shaarli | |
9 | * | |
10 | * Original project by sebsauvage.net: | |
11 | * - http://sebsauvage.net/wiki/doku.php?id=php:shaarli | |
12 | * - https://github.com/sebsauvage/Shaarli | |
13 | * | |
14 | * Licence: http://www.opensource.org/licenses/zlib-license.php | |
15 | * | |
16 | * Requires: PHP 5.3.x | |
17 | */ | |
afd7b77b V |
18 | |
19 | // Set 'UTC' as the default timezone if it is not defined in php.ini | |
20 | // See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone | |
21 | if (date_default_timezone_get() == '') { | |
22 | date_default_timezone_set('UTC'); | |
23 | } | |
cb49ab94 | 24 | |
28bb2b74 V |
25 | /* ----------------------------------------------------------------------------- |
26 | * Hardcoded parameters | |
27 | * You should not touch any code below (or at your own risks!) | |
28 | * (These parameters can be overwritten by editing the file /data/config.php) | |
29 | * ----------------------------------------------------------------------------- | |
30 | */ | |
31 | ||
32 | /* | |
33 | * Shaarli directories & configuration files | |
34 | */ | |
35 | // Data subdirectory | |
36 | $GLOBALS['config']['DATADIR'] = 'data'; | |
37 | ||
38 | // Main configuration file | |
39 | $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; | |
40 | ||
41 | // Link datastore | |
42 | $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; | |
43 | ||
44 | // Banned IPs | |
45 | $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; | |
46 | ||
510377d2 A |
47 | // Processed updates file. |
48 | $GLOBALS['config']['UPDATES_FILE'] = $GLOBALS['config']['DATADIR'].'/updates.txt'; | |
49 | ||
2e28269b V |
50 | // Access log |
51 | $GLOBALS['config']['LOG_FILE'] = $GLOBALS['config']['DATADIR'].'/log.txt'; | |
52 | ||
28bb2b74 V |
53 | // For updates check of Shaarli |
54 | $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; | |
55 | ||
7c873f1c A |
56 | // Set ENABLE_UPDATECHECK to disabled by default. |
57 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = false; | |
58 | ||
28bb2b74 V |
59 | // RainTPL cache directory (keep the trailing slash!) |
60 | $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/'; | |
61 | // Raintpl template directory (keep the trailing slash!) | |
62 | $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/'; | |
63 | ||
2e28269b | 64 | // Thumbnail cache directory |
28bb2b74 V |
65 | $GLOBALS['config']['CACHEDIR'] = 'cache'; |
66 | ||
67 | // Atom & RSS feed cache directory | |
68 | $GLOBALS['config']['PAGECACHE'] = 'pagecache'; | |
69 | ||
28bb2b74 V |
70 | /* |
71 | * Global configuration | |
72 | */ | |
73 | // Ban IP after this many failures | |
74 | $GLOBALS['config']['BAN_AFTER'] = 4; | |
75 | // Ban duration for IP address after login failures (in seconds) | |
76 | $GLOBALS['config']['BAN_DURATION'] = 1800; | |
77 | ||
78 | // Feed options | |
79 | // Enable RSS permalinks by default. | |
80 | // This corresponds to the default behavior of shaarli before this was added as an option. | |
81 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = true; | |
82 | // If true, an extra "ATOM feed" button will be displayed in the toolbar | |
83 | $GLOBALS['config']['SHOW_ATOM'] = false; | |
84 | ||
85 | // Link display options | |
caee7ff9 | 86 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false; |
28bb2b74 V |
87 | $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; |
88 | $GLOBALS['config']['LINKS_PER_PAGE'] = 20; | |
89 | ||
90 | // Open Shaarli (true): anyone can add/edit/delete links without having to login | |
91 | $GLOBALS['config']['OPEN_SHAARLI'] = false; | |
92 | ||
93 | // Thumbnails | |
94 | // Display thumbnails in links | |
95 | $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; | |
96 | // Store thumbnails in a local cache | |
97 | $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; | |
98 | ||
99 | // Update check frequency for Shaarli. 86400 seconds=24 hours | |
4407b45f V |
100 | $GLOBALS['config']['UPDATECHECK_BRANCH'] = 'stable'; |
101 | $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400; | |
28bb2b74 V |
102 | |
103 | ||
104 | /* | |
105 | * Plugin configuration | |
106 | * | |
107 | * Warning: order matters! | |
108 | * | |
109 | * These settings may be be overriden in: | |
110 | * - data/config.php | |
111 | * - each plugin's configuration file | |
112 | */ | |
6fc14d53 A |
113 | //$GLOBALS['config']['ENABLED_PLUGINS'] = array( |
114 | // 'qrcode', 'archiveorg', 'readityourself', 'demo_plugin', 'playvideos', | |
115 | // 'wallabag', 'markdown', 'addlink_toolbar', | |
116 | //); | |
6fc14d53 A |
117 | $GLOBALS['config']['ENABLED_PLUGINS'] = array('qrcode'); |
118 | ||
091e2d13 A |
119 | // Initialize plugin parameters array. |
120 | $GLOBALS['plugins'] = array(); | |
28bb2b74 V |
121 | |
122 | // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable. | |
123 | $GLOBALS['config']['PUBSUBHUB_URL'] = ''; | |
124 | ||
125 | /* | |
126 | * PHP configuration | |
127 | */ | |
729d2671 | 128 | define('shaarli_version', '0.6.3'); |
28bb2b74 | 129 | |
ae00595b CH |
130 | // http://server.com/x/shaarli --> /shaarli/ |
131 | define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); | |
45034273 | 132 | |
28bb2b74 V |
133 | // High execution time in case of problematic imports/exports. |
134 | ini_set('max_input_time','60'); | |
135 | ||
136 | // Try to set max upload file size and read | |
137 | ini_set('memory_limit', '128M'); | |
45034273 SS |
138 | ini_set('post_max_size', '16M'); |
139 | ini_set('upload_max_filesize', '16M'); | |
45034273 | 140 | |
28bb2b74 V |
141 | // See all error except warnings |
142 | error_reporting(E_ALL^E_WARNING); | |
143 | // See all errors (for debugging only) | |
144 | //error_reporting(-1); | |
145 | ||
146 | /* | |
147 | * User configuration | |
148 | */ | |
50c9a12e V |
149 | if (is_file($GLOBALS['config']['CONFIG_FILE'])) { |
150 | require_once $GLOBALS['config']['CONFIG_FILE']; | |
151 | } | |
152 | ||
ca74886f | 153 | // Shaarli library |
2e28269b | 154 | require_once 'application/ApplicationUtils.php'; |
01e48f26 V |
155 | require_once 'application/Cache.php'; |
156 | require_once 'application/CachedPage.php'; | |
2e28269b | 157 | require_once 'application/FileUtils.php'; |
451314eb | 158 | require_once 'application/HttpUtils.php'; |
ca74886f | 159 | require_once 'application/LinkDB.php'; |
822bffce | 160 | require_once 'application/LinkFilter.php'; |
1557cefb | 161 | require_once 'application/LinkUtils.php'; |
d1e2f8e5 | 162 | require_once 'application/TimeZone.php'; |
d9d776af | 163 | require_once 'application/Url.php'; |
ca74886f | 164 | require_once 'application/Utils.php'; |
dd484b90 | 165 | require_once 'application/Config.php'; |
6fc14d53 A |
166 | require_once 'application/PluginManager.php'; |
167 | require_once 'application/Router.php'; | |
510377d2 | 168 | require_once 'application/Updater.php'; |
ca74886f | 169 | |
d1e2f8e5 V |
170 | // Ensure the PHP version is supported |
171 | try { | |
c9cf2715 | 172 | ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION); |
2e28269b | 173 | } catch(Exception $exc) { |
d1e2f8e5 | 174 | header('Content-Type: text/plain; charset=utf-8'); |
2e28269b | 175 | echo $exc->getMessage(); |
d1e2f8e5 V |
176 | exit; |
177 | } | |
178 | ||
06b6660a A |
179 | // Force cookie path (but do not change lifetime) |
180 | $cookie = session_get_cookie_params(); | |
181 | $cookiedir = ''; | |
182 | if (dirname($_SERVER['SCRIPT_NAME']) != '/') { | |
183 | $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
184 | } | |
185 | // Set default cookie expiration and path. | |
186 | session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']); | |
187 | // Set session parameters on server side. | |
188 | // If the user does not access any page within this time, his/her session is considered expired. | |
189 | define('INACTIVITY_TIMEOUT', 3600); // in seconds. | |
190 | // Use cookies to store session. | |
191 | ini_set('session.use_cookies', 1); | |
192 | // Force cookies for session (phpsessionID forbidden in URL). | |
193 | ini_set('session.use_only_cookies', 1); | |
194 | // Prevent PHP form using sessionID in URL if cookies are disabled. | |
195 | ini_set('session.use_trans_sid', false); | |
196 | ||
06b6660a A |
197 | session_name('shaarli'); |
198 | // Start session if needed (Some server auto-start sessions). | |
199 | if (session_id() == '') { | |
200 | session_start(); | |
201 | } | |
202 | ||
68bc2135 V |
203 | // Regenerate session ID if invalid or not defined in cookie. |
204 | if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) { | |
205 | session_regenerate_id(true); | |
206 | $_COOKIE['shaarli'] = session_id(); | |
207 | } | |
208 | ||
45034273 | 209 | include "inc/rain.tpl.class.php"; //include Rain TPL |
25f5c59d | 210 | raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory |
25f5c59d | 211 | raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory |
45034273 | 212 | |
6fc14d53 A |
213 | $pluginManager = PluginManager::getInstance(); |
214 | $pluginManager->load($GLOBALS['config']['ENABLED_PLUGINS']); | |
215 | ||
45034273 SS |
216 | ob_start(); // Output buffering for the page cache. |
217 | ||
218 | ||
219 | // In case stupid admin has left magic_quotes enabled in php.ini: | |
220 | if (get_magic_quotes_gpc()) | |
221 | { | |
222 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
223 | $_POST = array_map('stripslashes_deep', $_POST); | |
224 | $_GET = array_map('stripslashes_deep', $_GET); | |
225 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
226 | } | |
227 | ||
228 | // Prevent caching on client side or proxy: (yes, it's ugly) | |
229 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
230 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
231 | header("Cache-Control: post-check=0, pre-check=0", false); | |
232 | header("Pragma: no-cache"); | |
233 | ||
45034273 | 234 | // Handling of old config file which do not have the new parameters. |
482d67bd | 235 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER)); |
45034273 | 236 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); |
8a80e4fe | 237 | if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; |
45034273 | 238 | if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; |
bb8f712d | 239 | if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; |
ebb2880d | 240 | if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; |
858c5c2b | 241 | // I really need to rewrite Shaarli with a proper configuation manager. |
45034273 | 242 | |
50c9a12e | 243 | if (! is_file($GLOBALS['config']['CONFIG_FILE'])) { |
2e28269b V |
244 | // Ensure Shaarli has proper access to its resources |
245 | $errors = ApplicationUtils::checkResourcePermissions($GLOBALS['config']); | |
246 | ||
247 | if ($errors != array()) { | |
248 | $message = '<p>Insufficient permissions:</p><ul>'; | |
249 | ||
250 | foreach ($errors as $error) { | |
251 | $message .= '<li>'.$error.'</li>'; | |
252 | } | |
253 | $message .= '</ul>'; | |
254 | ||
255 | header('Content-Type: text/html; charset=utf-8'); | |
256 | echo $message; | |
257 | exit; | |
258 | } | |
259 | ||
260 | // Display the installation form if no existing config is found | |
50c9a12e V |
261 | install(); |
262 | } | |
8a80e4fe | 263 | |
5f85fcd8 A |
264 | $GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : ''; |
265 | $GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : ''; | |
266 | $GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : ''; | |
8a80e4fe | 267 | |
ae00595b CH |
268 | // a token depending of deployment salt, user password, and the current ip |
269 | define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); | |
8a80e4fe | 270 | |
45034273 SS |
271 | autoLocale(); // Sniff browser language and set date format accordingly. |
272 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
273 | ||
ff69d87e FE |
274 | //================================================================================================== |
275 | // Checking session state (i.e. is the user still logged in) | |
276 | //================================================================================================== | |
277 | ||
278 | function setup_login_state() { | |
ff69d87e | 279 | if ($GLOBALS['config']['OPEN_SHAARLI']) { |
02ad8fb6 | 280 | return true; |
ff69d87e | 281 | } |
02ad8fb6 JP |
282 | $userIsLoggedIn = false; // By default, we do not consider the user as logged in; |
283 | $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. | |
ff69d87e FE |
284 | if (!isset($GLOBALS['login'])) { |
285 | $userIsLoggedIn = false; // Shaarli is not configured yet. | |
286 | $loginFailure = true; | |
287 | } | |
288 | if (isset($_COOKIE['shaarli_staySignedIn']) && | |
289 | $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && | |
290 | !$loginFailure) | |
291 | { | |
292 | fillSessionInfo(); | |
293 | $userIsLoggedIn = true; | |
294 | } | |
295 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
296 | if (empty($_SESSION['uid']) || | |
297 | ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || | |
298 | time() >= $_SESSION['expires_on']) | |
299 | { | |
300 | logout(); | |
301 | $userIsLoggedIn = false; | |
302 | $loginFailure = true; | |
303 | } | |
304 | if (!empty($_SESSION['longlastingsession'])) { | |
305 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked. | |
306 | } | |
307 | else { | |
308 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date. | |
309 | } | |
310 | if (!$loginFailure) { | |
311 | $userIsLoggedIn = true; | |
312 | } | |
313 | ||
314 | return $userIsLoggedIn; | |
315 | } | |
ff69d87e | 316 | $userIsLoggedIn = setup_login_state(); |
45034273 | 317 | |
45034273 | 318 | |
45034273 SS |
319 | // ------------------------------------------------------------------------------------------ |
320 | // Sniff browser language to display dates in the right format automatically. | |
321 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
322 | function autoLocale() | |
323 | { | |
8438a2e5 | 324 | $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE |
ad6c27b7 | 325 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" |
326 | { // (It's a bit crude, but it works very well. Preferred language is always presented first.) | |
8438a2e5 A |
327 | if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) { |
328 | $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : ''); | |
da49603b | 329 | $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc), |
d33c5d4c M |
330 | $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc), |
331 | $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8', | |
da49603b | 332 | $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc); |
8438a2e5 | 333 | } |
45034273 | 334 | } |
8438a2e5 | 335 | setlocale(LC_TIME, $attempts); // LC_TIME = Set local for date/time format only. |
45034273 SS |
336 | } |
337 | ||
338 | // ------------------------------------------------------------------------------------------ | |
339 | // PubSubHubbub protocol support (if enabled) [UNTESTED] | |
340 | // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ ) | |
341 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php'; | |
342 | function pubsubhub() | |
343 | { | |
344 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
345 | { | |
346 | $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']); | |
347 | $topic_url = array ( | |
482d67bd V |
348 | index_url($_SERVER).'?do=atom', |
349 | index_url($_SERVER).'?do=rss' | |
45034273 SS |
350 | ); |
351 | $p->publish_update($topic_url); | |
352 | } | |
353 | } | |
354 | ||
355 | // ------------------------------------------------------------------------------------------ | |
356 | // Session management | |
45034273 SS |
357 | |
358 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
359 | function allIPs() | |
360 | { | |
361 | $ip = $_SERVER["REMOTE_ADDR"]; | |
362 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
363 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
364 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
365 | return $ip; | |
366 | } | |
367 | ||
ae00595b | 368 | function fillSessionInfo() { |
ad6c27b7 | 369 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid) |
ae00595b CH |
370 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. |
371 | $_SESSION['username']=$GLOBALS['login']; | |
372 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
373 | } | |
374 | ||
45034273 SS |
375 | // Check that user/password is correct. |
376 | function check_auth($login,$password) | |
377 | { | |
378 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
379 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
380 | { // Login/password is correct. | |
ae00595b | 381 | fillSessionInfo(); |
1abe6555 | 382 | logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login successful'); |
45034273 SS |
383 | return True; |
384 | } | |
1abe6555 | 385 | logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login); |
45034273 SS |
386 | return False; |
387 | } | |
388 | ||
389 | // Returns true if the user is logged in. | |
390 | function isLoggedIn() | |
391 | { | |
ff69d87e FE |
392 | global $userIsLoggedIn; |
393 | return $userIsLoggedIn; | |
45034273 SS |
394 | } |
395 | ||
396 | // Force logout. | |
ff69d87e FE |
397 | function logout() { |
398 | if (isset($_SESSION)) { | |
399 | unset($_SESSION['uid']); | |
400 | unset($_SESSION['ip']); | |
401 | unset($_SESSION['username']); | |
402 | unset($_SESSION['privateonly']); | |
403 | } | |
404 | setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH); | |
ae00595b | 405 | } |
45034273 SS |
406 | |
407 | ||
408 | // ------------------------------------------------------------------------------------------ | |
409 | // Brute force protection system | |
410 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
411 | if (!is_file($GLOBALS['config']['IPBANS_FILENAME'])) file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"); | |
412 | include $GLOBALS['config']['IPBANS_FILENAME']; | |
413 | // Signal a failed login. Will ban the IP if too many failures: | |
414 | function ban_loginFailed() | |
415 | { | |
416 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
417 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
418 | $gb['FAILURES'][$ip]++; | |
419 | if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1)) | |
420 | { | |
421 | $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION']; | |
1abe6555 | 422 | logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'IP address banned from login'); |
45034273 SS |
423 | } |
424 | $GLOBALS['IPBANS'] = $gb; | |
425 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
426 | } | |
427 | ||
428 | // Signals a successful login. Resets failed login counter. | |
429 | function ban_loginOk() | |
430 | { | |
431 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
432 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
433 | $GLOBALS['IPBANS'] = $gb; | |
434 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
435 | } | |
436 | ||
437 | // Checks if the user CAN login. If 'true', the user can try to login. | |
438 | function ban_canLogin() | |
439 | { | |
440 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
441 | if (isset($gb['BANS'][$ip])) | |
442 | { | |
443 | // User is banned. Check if the ban has expired: | |
444 | if ($gb['BANS'][$ip]<=time()) | |
445 | { // Ban expired, user can try to login again. | |
1abe6555 | 446 | logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Ban lifted.'); |
45034273 SS |
447 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); |
448 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
449 | return true; // Ban has expired, user can login. | |
450 | } | |
451 | return false; // User is banned. | |
452 | } | |
453 | return true; // User is not banned. | |
454 | } | |
455 | ||
456 | // ------------------------------------------------------------------------------------------ | |
457 | // Process login form: Check if login/password is correct. | |
458 | if (isset($_POST['login'])) | |
459 | { | |
460 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
461 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
ad6c27b7 | 462 | { // Login/password is OK. |
45034273 SS |
463 | ban_loginOk(); |
464 | // If user wants to keep the session cookie even after the browser closes: | |
465 | if (!empty($_POST['longlastingsession'])) | |
466 | { | |
ae00595b | 467 | setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH); |
45034273 SS |
468 | $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year) |
469 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side. | |
2d9fab88 SS |
470 | |
471 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
2f32d074 | 472 | session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side |
ad6c27b7 | 473 | // Note: Never forget the trailing slash on the cookie path! |
45034273 SS |
474 | session_regenerate_id(true); // Send cookie with new expiration date to browser. |
475 | } | |
476 | else // Standard session expiration (=when browser closes) | |
477 | { | |
2d9fab88 | 478 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 479 | session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes" |
45034273 SS |
480 | session_regenerate_id(true); |
481 | } | |
f4c84ad7 | 482 | |
45034273 | 483 | // Optional redirect after login: |
5fbabbb9 A |
484 | if (isset($_GET['post'])) { |
485 | $uri = '?post='. urlencode($_GET['post']); | |
486 | foreach (array('description', 'source', 'title') as $param) { | |
487 | if (!empty($_GET[$param])) { | |
488 | $uri .= '&'.$param.'='.urlencode($_GET[$param]); | |
489 | } | |
490 | } | |
491 | header('Location: '. $uri); | |
492 | exit; | |
493 | } | |
494 | ||
495 | if (isset($_GET['edit_link'])) { | |
496 | header('Location: ?edit_link='. escape($_GET['edit_link'])); | |
497 | exit; | |
498 | } | |
499 | ||
500 | if (isset($_POST['returnurl'])) { | |
501 | // Prevent loops over login screen. | |
502 | if (strpos($_POST['returnurl'], 'do=login') === false) { | |
503 | header('Location: '. escape($_POST['returnurl'])); | |
504 | exit; | |
505 | } | |
45034273 SS |
506 | } |
507 | header('Location: ?'); exit; | |
508 | } | |
509 | else | |
510 | { | |
511 | ban_loginFailed(); | |
705f8355 | 512 | $redir = ''; |
5fbabbb9 A |
513 | if (isset($_GET['post'])) { |
514 | $redir = '?post=' . urlencode($_GET['post']); | |
515 | foreach (array('description', 'source', 'title') as $param) { | |
516 | if (!empty($_GET[$param])) { | |
517 | $redir .= '&' . $param . '=' . urlencode($_GET[$param]); | |
518 | } | |
519 | } | |
520 | } | |
fe16b01e | 521 | echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen. |
45034273 SS |
522 | exit; |
523 | } | |
524 | } | |
525 | ||
526 | // ------------------------------------------------------------------------------------------ | |
527 | // Misc utility functions: | |
528 | ||
ad6c27b7 | 529 | // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes. |
45034273 SS |
530 | function return_bytes($val) |
531 | { | |
532 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
533 | switch($last) | |
534 | { | |
535 | case 'g': $val *= 1024; | |
536 | case 'm': $val *= 1024; | |
537 | case 'k': $val *= 1024; | |
538 | } | |
539 | return $val; | |
540 | } | |
541 | ||
542 | // Try to determine max file size for uploads (POST). | |
543 | // Returns an integer (in bytes) | |
544 | function getMaxFileSize() | |
545 | { | |
546 | $size1 = return_bytes(ini_get('post_max_size')); | |
547 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
548 | // Return the smaller of two: | |
549 | $maxsize = min($size1,$size2); | |
ad6c27b7 | 550 | // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000) |
45034273 SS |
551 | return $maxsize; |
552 | } | |
553 | ||
45034273 SS |
554 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) |
555 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
556 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
557 | function linkdate2timestamp($linkdate) | |
558 | { | |
f5b05925 JD |
559 | if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){ |
560 | $Y=$M=$D=$h=$m=$s=0; | |
561 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
562 | return mktime($h,$m,$s,$M,$D,$Y); | |
563 | } | |
564 | return time(); | |
45034273 SS |
565 | } |
566 | ||
567 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
568 | (used to build the pubDate attribute in RSS feed.) */ | |
569 | function linkdate2rfc822($linkdate) | |
570 | { | |
571 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
572 | } | |
573 | ||
574 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date. | |
575 | (used to build the updated tags in ATOM feed.) */ | |
576 | function linkdate2iso8601($linkdate) | |
577 | { | |
578 | return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format. | |
579 | } | |
580 | ||
45034273 SS |
581 | // ------------------------------------------------------------------------------------------ |
582 | // Token management for XSRF protection | |
583 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
584 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
585 | ||
586 | // Returns a token. | |
587 | function getToken() | |
588 | { | |
a1f5a6ec | 589 | $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string. |
45034273 SS |
590 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. |
591 | return $rnd; | |
592 | } | |
593 | ||
ad6c27b7 | 594 | // Tells if a token is OK. Using this function will destroy the token. |
595 | // true=token is OK. | |
45034273 SS |
596 | function tokenOk($token) |
597 | { | |
598 | if (isset($_SESSION['tokens'][$token])) | |
599 | { | |
600 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
ad6c27b7 | 601 | return true; // Token is OK. |
45034273 SS |
602 | } |
603 | return false; // Wrong token, or already used. | |
604 | } | |
605 | ||
606 | // ------------------------------------------------------------------------------------------ | |
607 | /* This class is in charge of building the final page. | |
608 | (This is basically a wrapper around RainTPL which pre-fills some fields.) | |
609 | p = new pageBuilder; | |
610 | p.assign('myfield','myvalue'); | |
611 | p.renderPage('mytemplate'); | |
bb8f712d | 612 | |
45034273 SS |
613 | */ |
614 | class pageBuilder | |
615 | { | |
616 | private $tpl; // RainTPL template | |
617 | ||
618 | function __construct() | |
619 | { | |
056107ab | 620 | $this->tpl = false; |
bb8f712d | 621 | } |
45034273 | 622 | |
056107ab A |
623 | /** |
624 | * Initialize all default tpl tags. | |
625 | */ | |
45034273 | 626 | private function initialize() |
bb8f712d KT |
627 | { |
628 | $this->tpl = new RainTPL; | |
4407b45f V |
629 | |
630 | try { | |
631 | $version = ApplicationUtils::checkUpdate( | |
632 | shaarli_version, | |
633 | $GLOBALS['config']['UPDATECHECK_FILENAME'], | |
634 | $GLOBALS['config']['UPDATECHECK_INTERVAL'], | |
635 | $GLOBALS['config']['ENABLE_UPDATECHECK'], | |
636 | isLoggedIn(), | |
637 | $GLOBALS['config']['UPDATECHECK_BRANCH'] | |
638 | ); | |
639 | $this->tpl->assign('newVersion', escape($version)); | |
4a7af975 | 640 | $this->tpl->assign('versionError', ''); |
4407b45f V |
641 | |
642 | } catch (Exception $exc) { | |
1abe6555 | 643 | logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], $exc->getMessage()); |
4a7af975 | 644 | $this->tpl->assign('newVersion', ''); |
4407b45f V |
645 | $this->tpl->assign('versionError', escape($exc->getMessage())); |
646 | } | |
647 | ||
056107ab A |
648 | $this->tpl->assign('feedurl', escape(index_url($_SERVER))); |
649 | $searchcrits = ''; // Search criteria | |
650 | if (!empty($_GET['searchtags'])) { | |
651 | $searchcrits .= '&searchtags=' . urlencode($_GET['searchtags']); | |
652 | } | |
653 | elseif (!empty($_GET['searchterm'])) { | |
654 | $searchcrits .= '&searchterm=' . urlencode($_GET['searchterm']); | |
655 | } | |
656 | $this->tpl->assign('searchcrits', $searchcrits); | |
657 | $this->tpl->assign('source', index_url($_SERVER)); | |
658 | $this->tpl->assign('version', shaarli_version); | |
659 | $this->tpl->assign('scripturl', index_url($_SERVER)); | |
660 | $this->tpl->assign('pagetitle', 'Shaarli'); | |
661 | $this->tpl->assign('privateonly', !empty($_SESSION['privateonly'])); // Show only private links? | |
662 | if (!empty($GLOBALS['title'])) { | |
663 | $this->tpl->assign('pagetitle', $GLOBALS['title']); | |
664 | } | |
665 | if (!empty($GLOBALS['titleLink'])) { | |
666 | $this->tpl->assign('titleLink', $GLOBALS['titleLink']); | |
667 | } | |
668 | if (!empty($GLOBALS['pagetitle'])) { | |
669 | $this->tpl->assign('pagetitle', $GLOBALS['pagetitle']); | |
670 | } | |
671 | $this->tpl->assign('shaarlititle', empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title']); | |
e4b9a763 A |
672 | if (!empty($GLOBALS['plugin_errors'])) { |
673 | $this->tpl->assign('plugin_errors', $GLOBALS['plugin_errors']); | |
056107ab | 674 | } |
45034273 | 675 | } |
bb8f712d | 676 | |
45034273 SS |
677 | // The following assign() method is basically the same as RainTPL (except that it's lazy) |
678 | public function assign($what,$where) | |
679 | { | |
680 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
681 | $this->tpl->assign($what,$where); | |
682 | } | |
bb8f712d | 683 | |
45034273 | 684 | // Render a specific page (using a template). |
ad6c27b7 | 685 | // e.g. pb.renderPage('picwall') |
45034273 SS |
686 | public function renderPage($page) |
687 | { | |
688 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
689 | $this->tpl->draw($page); | |
690 | } | |
f4c84ad7 D |
691 | |
692 | /** | |
693 | * Render a 404 page (uses the template : tpl/404.tpl) | |
694 | * | |
695 | * usage : $PAGE->render404('The link was deleted') | |
696 | * @param string $message A messate to display what is not found | |
697 | */ | |
698 | public function render404($message='The page you are trying to reach does not exist or has been deleted.') { | |
699 | header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found'); | |
700 | $this->tpl->assign('error_message', $message); | |
701 | $this->renderPage('404'); | |
702 | } | |
45034273 SS |
703 | } |
704 | ||
45034273 | 705 | // ------------------------------------------------------------------------------------------ |
ad6c27b7 | 706 | // Output the last N links in RSS 2.0 format. |
45034273 SS |
707 | function showRSS() |
708 | { | |
709 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
710 | ||
2abd3905 | 711 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 712 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks |
ed5b38dd FE |
713 | // Also enabled through a config option |
714 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
2abd3905 | 715 | |
45034273 SS |
716 | // Cache system |
717 | $query = $_SERVER["QUERY_STRING"]; | |
01e48f26 V |
718 | $cache = new CachedPage( |
719 | $GLOBALS['config']['PAGECACHE'], | |
482d67bd | 720 | page_url($_SERVER), |
01e48f26 V |
721 | startsWith($query,'do=rss') && !isLoggedIn() |
722 | ); | |
723 | $cached = $cache->cachedVersion(); | |
724 | if (! empty($cached)) { | |
725 | echo $cached; | |
726 | exit; | |
727 | } | |
45034273 SS |
728 | |
729 | // If cached was not found (or not usable), then read the database and build the response: | |
9f15ca9e | 730 | $LINKSDB = new LinkDB( |
9c8752a2 | 731 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 732 | isLoggedIn(), |
90e5bd65 A |
733 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
734 | $GLOBALS['redirector'] | |
9f15ca9e V |
735 | ); |
736 | // Read links from database (and filter private links if user it not logged in). | |
45034273 | 737 | |
ad6c27b7 | 738 | // Optionally filter the results: |
822bffce A |
739 | if (!empty($_GET['searchterm'])) { |
740 | $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']); | |
741 | } | |
742 | elseif (!empty($_GET['searchtags'])) { | |
743 | $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags'])); | |
744 | } | |
745 | else { | |
746 | $linksToDisplay = $LINKSDB; | |
747 | } | |
f3db3774 | 748 | |
c677013b | 749 | $nblinksToDisplay = 50; // Number of links to display. |
822bffce A |
750 | // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. |
751 | if (!empty($_GET['nb'])) { | |
752 | $nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1); | |
c677013b | 753 | } |
45034273 | 754 | |
822bffce | 755 | $pageaddr = escape(index_url($_SERVER)); |
45034273 | 756 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; |
5f85fcd8 | 757 | echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>'; |
45034273 SS |
758 | echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n"; |
759 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
760 | { | |
761 | echo '<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 A |
762 | echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />'; |
763 | echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />'; | |
45034273 SS |
764 | echo '<!-- End Of PubSubHubbub Discovery -->'; |
765 | } | |
766 | $i=0; | |
767 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 768 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
769 | { |
770 | $link = $linksToDisplay[$keys[$i]]; | |
771 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
772 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
5f85fcd8 | 773 | $absurl = $link['url']; |
45034273 | 774 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
2abd3905 | 775 | if ($usepermalinks===true) |
5f85fcd8 | 776 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>'; |
2abd3905 | 777 | else |
5f85fcd8 A |
778 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>'; |
779 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.escape($rfc822date)."</pubDate>\n"; | |
45034273 SS |
780 | if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification) |
781 | { | |
5f85fcd8 | 782 | foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; } |
45034273 | 783 | } |
2abd3905 SS |
784 | |
785 | // Add permalink in description | |
786 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
787 | // If user wants permalinks first, put the final link in description | |
788 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
789 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
90e5bd65 A |
790 | echo '<description><![CDATA['. |
791 | format_description($link['description'], $GLOBALS['redirector']) . | |
792 | $descriptionlink . ']]></description>' . "\n</item>\n"; | |
45034273 SS |
793 | $i++; |
794 | } | |
482d67bd | 795 | echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->'; |
45034273 SS |
796 | |
797 | $cache->cache(ob_get_contents()); | |
798 | ob_end_flush(); | |
799 | exit; | |
800 | } | |
801 | ||
802 | // ------------------------------------------------------------------------------------------ | |
ad6c27b7 | 803 | // Output the last N links in ATOM format. |
45034273 SS |
804 | function showATOM() |
805 | { | |
806 | header('Content-Type: application/atom+xml; charset=utf-8'); | |
807 | ||
2abd3905 | 808 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 809 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks |
ed5b38dd | 810 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; |
2abd3905 | 811 | |
45034273 SS |
812 | // Cache system |
813 | $query = $_SERVER["QUERY_STRING"]; | |
01e48f26 V |
814 | $cache = new CachedPage( |
815 | $GLOBALS['config']['PAGECACHE'], | |
482d67bd | 816 | page_url($_SERVER), |
01e48f26 V |
817 | startsWith($query,'do=atom') && !isLoggedIn() |
818 | ); | |
819 | $cached = $cache->cachedVersion(); | |
820 | if (!empty($cached)) { | |
821 | echo $cached; | |
822 | exit; | |
823 | } | |
45034273 | 824 | |
01e48f26 V |
825 | // If cached was not found (or not usable), then read the database and build the response: |
826 | // Read links from database (and filter private links if used it not logged in). | |
9f15ca9e | 827 | $LINKSDB = new LinkDB( |
9c8752a2 | 828 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 829 | isLoggedIn(), |
90e5bd65 A |
830 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
831 | $GLOBALS['redirector'] | |
9f15ca9e | 832 | ); |
45034273 | 833 | |
ad6c27b7 | 834 | // Optionally filter the results: |
822bffce A |
835 | if (!empty($_GET['searchterm'])) { |
836 | $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']); | |
837 | } | |
838 | else if (!empty($_GET['searchtags'])) { | |
839 | $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags'])); | |
840 | } | |
841 | else { | |
842 | $linksToDisplay = $LINKSDB; | |
843 | } | |
f3db3774 | 844 | |
c677013b | 845 | $nblinksToDisplay = 50; // Number of links to display. |
822bffce A |
846 | // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. |
847 | if (!empty($_GET['nb'])) { | |
848 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1); | |
c677013b | 849 | } |
45034273 | 850 | |
482d67bd | 851 | $pageaddr=escape(index_url($_SERVER)); |
45034273 SS |
852 | $latestDate = ''; |
853 | $entries=''; | |
854 | $i=0; | |
855 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 856 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
857 | { |
858 | $link = $linksToDisplay[$keys[$i]]; | |
859 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
860 | $iso8601date = linkdate2iso8601($link['linkdate']); | |
861 | $latestDate = max($latestDate,$iso8601date); | |
5f85fcd8 | 862 | $absurl = $link['url']; |
45034273 | 863 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
5f85fcd8 | 864 | $entries.='<entry><title>'.$link['title'].'</title>'; |
2abd3905 SS |
865 | if ($usepermalinks===true) |
866 | $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>'; | |
867 | else | |
868 | $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>'; | |
5f85fcd8 | 869 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.escape($iso8601date).'</updated>'; |
2abd3905 SS |
870 | |
871 | // Add permalink in description | |
5f85fcd8 | 872 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; |
2abd3905 | 873 | // If user wants permalinks first, put the final link in description |
5f85fcd8 A |
874 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; |
875 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
2abd3905 | 876 | |
90e5bd65 A |
877 | $entries .= '<content type="html"><![CDATA['. |
878 | format_description($link['description'], $GLOBALS['redirector']) . | |
879 | $descriptionlink . "]]></content>\n"; | |
45034273 SS |
880 | if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) |
881 | { | |
882 | foreach(explode(' ',$link['tags']) as $tag) | |
5f85fcd8 | 883 | { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; } |
45034273 SS |
884 | } |
885 | $entries.="</entry>\n"; | |
886 | $i++; | |
887 | } | |
888 | $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">'; | |
5f85fcd8 A |
889 | $feed.='<title>'.$GLOBALS['title'].'</title>'; |
890 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>'; | |
482d67bd | 891 | $feed.='<link rel="self" href="'.escape(server_url($_SERVER).$_SERVER["REQUEST_URI"]).'" />'; |
45034273 SS |
892 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) |
893 | { | |
894 | $feed.='<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 | 895 | $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />'; |
45034273 SS |
896 | $feed.='<!-- End Of PubSubHubbub Discovery -->'; |
897 | } | |
5f85fcd8 A |
898 | $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>'; |
899 | $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. | |
45034273 | 900 | $feed.=$entries; |
482d67bd | 901 | $feed.='</feed><!-- Cached version of '.escape(page_url($_SERVER)).' -->'; |
45034273 | 902 | echo $feed; |
bb8f712d | 903 | |
45034273 SS |
904 | $cache->cache(ob_get_contents()); |
905 | ob_end_flush(); | |
906 | exit; | |
907 | } | |
908 | ||
909 | // ------------------------------------------------------------------------------------------ | |
910 | // Daily RSS feed: 1 RSS entry per day giving all the links on that day. | |
911 | // Gives the last 7 days (which have links). | |
912 | // This RSS feed cannot be filtered. | |
f3b8f9f0 | 913 | function showDailyRSS() { |
45034273 SS |
914 | // Cache system |
915 | $query = $_SERVER["QUERY_STRING"]; | |
01e48f26 V |
916 | $cache = new CachedPage( |
917 | $GLOBALS['config']['PAGECACHE'], | |
482d67bd | 918 | page_url($_SERVER), |
01e48f26 V |
919 | startsWith($query,'do=dailyrss') && !isLoggedIn() |
920 | ); | |
f3b8f9f0 A |
921 | $cached = $cache->cachedVersion(); |
922 | if (!empty($cached)) { | |
923 | echo $cached; | |
924 | exit; | |
925 | } | |
9f15ca9e | 926 | |
f3b8f9f0 A |
927 | // If cached was not found (or not usable), then read the database and build the response: |
928 | // Read links from database (and filter private links if used it not logged in). | |
9f15ca9e | 929 | $LINKSDB = new LinkDB( |
9c8752a2 | 930 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 931 | isLoggedIn(), |
90e5bd65 A |
932 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
933 | $GLOBALS['redirector'] | |
9f15ca9e | 934 | ); |
bb8f712d | 935 | |
45034273 SS |
936 | /* Some Shaarlies may have very few links, so we need to look |
937 | back in time (rsort()) until we have enough days ($nb_of_days). | |
938 | */ | |
f3b8f9f0 A |
939 | $linkdates = array(); |
940 | foreach ($LINKSDB as $linkdate => $value) { | |
941 | $linkdates[] = $linkdate; | |
942 | } | |
45034273 | 943 | rsort($linkdates); |
f3b8f9f0 A |
944 | $nb_of_days = 7; // We take 7 days. |
945 | $today = Date('Ymd'); | |
946 | $days = array(); | |
947 | ||
948 | foreach ($linkdates as $linkdate) { | |
949 | $day = substr($linkdate, 0, 8); // Extract day (without time) | |
950 | if (strcmp($day,$today) < 0) { | |
951 | if (empty($days[$day])) { | |
952 | $days[$day] = array(); | |
953 | } | |
954 | $days[$day][] = $linkdate; | |
955 | } | |
956 | ||
957 | if (count($days) > $nb_of_days) { | |
958 | break; // Have we collected enough days? | |
45034273 | 959 | } |
45034273 | 960 | } |
bb8f712d | 961 | |
45034273 SS |
962 | // Build the RSS feed. |
963 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
482d67bd | 964 | $pageaddr = escape(index_url($_SERVER)); |
45034273 | 965 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">'; |
f3b8f9f0 A |
966 | echo '<channel>'; |
967 | echo '<title>Daily - '. $GLOBALS['title'] . '</title>'; | |
968 | echo '<link>'. $pageaddr .'</link>'; | |
969 | echo '<description>Daily shared links</description>'; | |
970 | echo '<language>en-en</language>'; | |
971 | echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL; | |
972 | ||
973 | // For each day. | |
974 | foreach ($days as $day => $linkdates) { | |
975 | $daydate = linkdate2timestamp($day.'_000000'); // Full text date | |
45034273 | 976 | $rfc822date = linkdate2rfc822($day.'_000000'); |
482d67bd | 977 | $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. |
bb8f712d | 978 | |
45034273 | 979 | // Build the HTML body of this RSS entry. |
f3b8f9f0 A |
980 | $html = ''; |
981 | $href = ''; | |
982 | $links = array(); | |
983 | ||
45034273 | 984 | // We pre-format some fields for proper output. |
f3b8f9f0 | 985 | foreach ($linkdates as $linkdate) { |
45034273 | 986 | $l = $LINKSDB[$linkdate]; |
90e5bd65 | 987 | $l['formatedDescription'] = format_description($l['description'], $GLOBALS['redirector']); |
bb8f712d | 988 | $l['thumbnail'] = thumbnail($l['url']); |
a5752e77 | 989 | $l['timestamp'] = linkdate2timestamp($l['linkdate']); |
f3b8f9f0 | 990 | if (startsWith($l['url'], '?')) { |
482d67bd | 991 | $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute |
f3b8f9f0 A |
992 | } |
993 | $links[$linkdate] = $l; | |
45034273 | 994 | } |
f3b8f9f0 | 995 | |
45034273 | 996 | // Then build the HTML for this day: |
bb8f712d | 997 | $tpl = new RainTPL; |
f3b8f9f0 A |
998 | $tpl->assign('title', $GLOBALS['title']); |
999 | $tpl->assign('daydate', $daydate); | |
1000 | $tpl->assign('absurl', $absurl); | |
1001 | $tpl->assign('links', $links); | |
1002 | $tpl->assign('rfc822date', escape($rfc822date)); | |
1003 | $html = $tpl->draw('dailyrss', $return_string=true); | |
45034273 | 1004 | |
f3b8f9f0 | 1005 | echo $html . PHP_EOL; |
bb8f712d | 1006 | } |
482d67bd | 1007 | echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->'; |
bb8f712d | 1008 | |
45034273 SS |
1009 | $cache->cache(ob_get_contents()); |
1010 | ob_end_flush(); | |
1011 | exit; | |
1012 | } | |
1013 | ||
38603b24 A |
1014 | /** |
1015 | * Show the 'Daily' page. | |
1016 | * | |
1017 | * @param PageBuilder $pageBuilder Template engine wrapper. | |
1018 | */ | |
1019 | function showDaily($pageBuilder) | |
45034273 | 1020 | { |
9f15ca9e | 1021 | $LINKSDB = new LinkDB( |
9c8752a2 | 1022 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 1023 | isLoggedIn(), |
90e5bd65 A |
1024 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
1025 | $GLOBALS['redirector'] | |
9f15ca9e | 1026 | ); |
45034273 SS |
1027 | |
1028 | $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. | |
1029 | if (isset($_GET['day'])) $day=$_GET['day']; | |
bb8f712d | 1030 | |
45034273 SS |
1031 | $days = $LINKSDB->days(); |
1032 | $i = array_search($day,$days); | |
f3db3774 | 1033 | if ($i===false) { $i=count($days)-1; $day=$days[$i]; } |
bb8f712d KT |
1034 | $previousday=''; |
1035 | $nextday=''; | |
45034273 SS |
1036 | if ($i!==false) |
1037 | { | |
f3db3774 | 1038 | if ($i>=1) $previousday=$days[$i-1]; |
45034273 SS |
1039 | if ($i<count($days)-1) $nextday=$days[$i+1]; |
1040 | } | |
1041 | ||
9186ab95 | 1042 | try { |
822bffce | 1043 | $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_DAY, $day); |
9186ab95 V |
1044 | } catch (Exception $exc) { |
1045 | error_log($exc); | |
d1e2f8e5 | 1046 | $linksToDisplay = array(); |
9186ab95 V |
1047 | } |
1048 | ||
45034273 SS |
1049 | // We pre-format some fields for proper output. |
1050 | foreach($linksToDisplay as $key=>$link) | |
1051 | { | |
5f85fcd8 | 1052 | |
dd62b9ba SS |
1053 | $taglist = explode(' ',$link['tags']); |
1054 | uasort($taglist, 'strcasecmp'); | |
1055 | $linksToDisplay[$key]['taglist']=$taglist; | |
90e5bd65 | 1056 | $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $GLOBALS['redirector']); |
bb8f712d | 1057 | $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); |
a5752e77 | 1058 | $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); |
45034273 | 1059 | } |
bb8f712d | 1060 | |
45034273 | 1061 | /* We need to spread the articles on 3 columns. |
ad6c27b7 | 1062 | I did not want to use a JavaScript lib like http://masonry.desandro.com/ |
bb8f712d | 1063 | so I manually spread entries with a simple method: I roughly evaluate the |
45034273 SS |
1064 | height of a div according to title and description length. |
1065 | */ | |
1066 | $columns=array(array(),array(),array()); // Entries to display, for each column. | |
1067 | $fill=array(0,0,0); // Rough estimate of columns fill. | |
1068 | foreach($linksToDisplay as $key=>$link) | |
1069 | { | |
1070 | // Roughly estimate length of entry (by counting characters) | |
1071 | // Title: 30 chars = 1 line. 1 line is 30 pixels height. | |
1072 | // Description: 836 characters gives roughly 342 pixel height. | |
ad6c27b7 | 1073 | // This is not perfect, but it's usually OK. |
45034273 SS |
1074 | $length=strlen($link['title'])+(342*strlen($link['description']))/836; |
1075 | if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. | |
1076 | // Then put in column which is the less filled: | |
1077 | $smallest=min($fill); // find smallest value in array. | |
1078 | $index=array_search($smallest,$fill); // find index of this smallest value. | |
1079 | array_push($columns[$index],$link); // Put entry in this column. | |
1080 | $fill[$index]+=$length; | |
1081 | } | |
38603b24 | 1082 | |
6fc14d53 A |
1083 | $data = array( |
1084 | 'linksToDisplay' => $linksToDisplay, | |
1085 | 'linkcount' => count($LINKSDB), | |
1086 | 'cols' => $columns, | |
1087 | 'day' => linkdate2timestamp($day.'_000000'), | |
1088 | 'previousday' => $previousday, | |
1089 | 'nextday' => $nextday, | |
1090 | ); | |
1091 | $pluginManager = PluginManager::getInstance(); | |
1092 | $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn())); | |
1093 | ||
1094 | foreach ($data as $key => $value) { | |
38603b24 | 1095 | $pageBuilder->assign($key, $value); |
6fc14d53 A |
1096 | } |
1097 | ||
38603b24 | 1098 | $pageBuilder->renderPage('daily'); |
45034273 SS |
1099 | exit; |
1100 | } | |
1101 | ||
6fc14d53 A |
1102 | // Renders the linklist |
1103 | function showLinkList($PAGE, $LINKSDB) { | |
1104 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1105 | $PAGE->renderPage('linklist'); | |
1106 | } | |
1107 | ||
45034273 SS |
1108 | |
1109 | // ------------------------------------------------------------------------------------------ | |
1110 | // Render HTML page (according to URL parameters and user rights) | |
1111 | function renderPage() | |
1112 | { | |
9f15ca9e | 1113 | $LINKSDB = new LinkDB( |
9c8752a2 | 1114 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 1115 | isLoggedIn(), |
90e5bd65 A |
1116 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
1117 | $GLOBALS['redirector'] | |
9f15ca9e | 1118 | ); |
45034273 | 1119 | |
510377d2 A |
1120 | $updater = new Updater( |
1121 | read_updates_file($GLOBALS['config']['UPDATES_FILE']), | |
1122 | $GLOBALS, | |
1123 | $LINKSDB, | |
1124 | isLoggedIn() | |
1125 | ); | |
1126 | try { | |
1127 | $newUpdates = $updater->update(); | |
1128 | if (! empty($newUpdates)) { | |
1129 | write_updates_file( | |
1130 | $GLOBALS['config']['UPDATES_FILE'], | |
1131 | $updater->getDoneUpdates() | |
1132 | ); | |
1133 | } | |
1134 | } | |
1135 | catch(Exception $e) { | |
1136 | die($e->getMessage()); | |
1137 | } | |
1138 | ||
6fc14d53 A |
1139 | $PAGE = new pageBuilder; |
1140 | ||
1141 | // Determine which page will be rendered. | |
1142 | $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : ''; | |
1143 | $targetPage = Router::findPage($query, $_GET, isLoggedIn()); | |
1144 | ||
1145 | // Call plugin hooks for header, footer and includes, specifying which page will be rendered. | |
1146 | // Then assign generated data to RainTPL. | |
1147 | $common_hooks = array( | |
fea5db7a | 1148 | 'includes', |
6fc14d53 A |
1149 | 'header', |
1150 | 'footer', | |
6fc14d53 A |
1151 | ); |
1152 | $pluginManager = PluginManager::getInstance(); | |
1153 | foreach($common_hooks as $name) { | |
1154 | $plugin_data = array(); | |
1155 | $pluginManager->executeHooks('render_' . $name, $plugin_data, | |
1156 | array( | |
1157 | 'target' => $targetPage, | |
1158 | 'loggedin' => isLoggedIn() | |
1159 | ) | |
1160 | ); | |
1161 | $PAGE->assign('plugins_' . $name, $plugin_data); | |
1162 | } | |
1163 | ||
45034273 | 1164 | // -------- Display login form. |
6fc14d53 | 1165 | if ($targetPage == Router::$PAGE_LOGIN) |
45034273 SS |
1166 | { |
1167 | if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli | |
1168 | $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. | |
45034273 | 1169 | $PAGE->assign('token',$token); |
5f85fcd8 | 1170 | $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); |
45034273 SS |
1171 | $PAGE->renderPage('loginform'); |
1172 | exit; | |
1173 | } | |
1174 | // -------- User wants to logout. | |
1175 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
1176 | { | |
01e48f26 | 1177 | invalidateCaches($GLOBALS['config']['PAGECACHE']); |
45034273 SS |
1178 | logout(); |
1179 | header('Location: ?'); | |
1180 | exit; | |
1181 | } | |
1182 | ||
1183 | // -------- Picture wall | |
6fc14d53 | 1184 | if ($targetPage == Router::$PAGE_PICWALL) |
45034273 | 1185 | { |
ad6c27b7 | 1186 | // Optionally filter the results: |
822bffce A |
1187 | if (!empty($_GET['searchterm'])) { |
1188 | $links = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']); | |
1189 | } | |
1190 | elseif (! empty($_GET['searchtags'])) { | |
1191 | $links = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags'])); | |
1192 | } | |
1193 | else { | |
1194 | $links = $LINKSDB; | |
1195 | } | |
f3db3774 | 1196 | |
822bffce | 1197 | $linksToDisplay = array(); |
45034273 SS |
1198 | |
1199 | // Get only links which have a thumbnail. | |
1200 | foreach($links as $link) | |
1201 | { | |
5f85fcd8 | 1202 | $permalink='?'.escape(smallhash($link['linkdate'])); |
45034273 SS |
1203 | $thumb=lazyThumbnail($link['url'],$permalink); |
1204 | if ($thumb!='') // Only output links which have a thumbnail. | |
1205 | { | |
1206 | $link['thumbnail']=$thumb; // Thumbnail HTML code. | |
45034273 SS |
1207 | $linksToDisplay[]=$link; // Add to array. |
1208 | } | |
1209 | } | |
f3db3774 | 1210 | |
6fc14d53 A |
1211 | $data = array( |
1212 | 'linkcount' => count($LINKSDB), | |
1213 | 'linksToDisplay' => $linksToDisplay, | |
1214 | ); | |
1215 | $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn())); | |
1216 | ||
1217 | foreach ($data as $key => $value) { | |
1218 | $PAGE->assign($key, $value); | |
1219 | } | |
1220 | ||
45034273 SS |
1221 | $PAGE->renderPage('picwall'); |
1222 | exit; | |
1223 | } | |
1224 | ||
1225 | // -------- Tag cloud | |
6fc14d53 | 1226 | if ($targetPage == Router::$PAGE_TAGCLOUD) |
45034273 SS |
1227 | { |
1228 | $tags= $LINKSDB->allTags(); | |
a037ac69 | 1229 | |
45034273 SS |
1230 | // We sort tags alphabetically, then choose a font size according to count. |
1231 | // First, find max value. | |
1232 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
1233 | ksort($tags); | |
1234 | $tagList=array(); | |
1235 | foreach($tags as $key=>$value) | |
1e3b2740 | 1236 | // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes. |
45034273 | 1237 | { |
1e3b2740 | 1238 | $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); |
45034273 | 1239 | } |
6fc14d53 A |
1240 | |
1241 | $data = array( | |
1242 | 'linkcount' => count($LINKSDB), | |
1243 | 'tags' => $tagList, | |
1244 | ); | |
1245 | $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn())); | |
1246 | ||
1247 | foreach ($data as $key => $value) { | |
1248 | $PAGE->assign($key, $value); | |
1249 | } | |
1250 | ||
45034273 | 1251 | $PAGE->renderPage('tagcloud'); |
bb8f712d | 1252 | exit; |
45034273 SS |
1253 | } |
1254 | ||
38603b24 A |
1255 | // Daily page. |
1256 | if ($targetPage == Router::$PAGE_DAILY) { | |
1257 | showDaily($PAGE); | |
1258 | } | |
1259 | ||
8f8113b9 A |
1260 | // Display openseach plugin (XML) |
1261 | if ($targetPage == Router::$PAGE_OPENSEARCH) { | |
1262 | header('Content-Type: application/xml; charset=utf-8'); | |
1263 | $PAGE->assign('serverurl', index_url($_SERVER)); | |
1264 | $PAGE->renderPage('opensearch'); | |
1265 | exit; | |
1266 | } | |
1267 | ||
45034273 SS |
1268 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) |
1269 | if (isset($_GET['addtag'])) | |
1270 | { | |
1271 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
1272 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER | |
1273 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
732e683b | 1274 | |
775803a0 A |
1275 | // Prevent redirection loop |
1276 | if (isset($params['addtag'])) { | |
1277 | unset($params['addtag']); | |
1278 | } | |
1279 | ||
732e683b FE |
1280 | // Check if this tag is already in the search query and ignore it if it is. |
1281 | // Each tag is always separated by a space | |
6ac95d9c A |
1282 | if (isset($params['searchtags'])) { |
1283 | $current_tags = explode(' ', $params['searchtags']); | |
1284 | } else { | |
1285 | $current_tags = array(); | |
1286 | } | |
732e683b FE |
1287 | $addtag = true; |
1288 | foreach ($current_tags as $value) { | |
1289 | if ($value === $_GET['addtag']) { | |
1290 | $addtag = false; | |
1291 | break; | |
1292 | } | |
1293 | } | |
1294 | // Append the tag if necessary | |
1295 | if (empty($params['searchtags'])) { | |
1296 | $params['searchtags'] = trim($_GET['addtag']); | |
1297 | } | |
1298 | else if ($addtag) { | |
1299 | $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); | |
1300 | } | |
1301 | ||
45034273 SS |
1302 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1303 | header('Location: ?'.http_build_query($params)); | |
1304 | exit; | |
1305 | } | |
1306 | ||
1307 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
775803a0 | 1308 | if (isset($_GET['removetag'])) { |
45034273 | 1309 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. |
775803a0 A |
1310 | if (empty($_SERVER['HTTP_REFERER'])) { |
1311 | header('Location: ?'); | |
1312 | exit; | |
1313 | } | |
1314 | ||
1315 | // In case browser does not send HTTP_REFERER | |
1316 | parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params); | |
1317 | ||
1318 | // Prevent redirection loop | |
1319 | if (isset($params['removetag'])) { | |
1320 | unset($params['removetag']); | |
1321 | } | |
1322 | ||
1323 | if (isset($params['searchtags'])) { | |
822bffce | 1324 | $tags = explode(' ', $params['searchtags']); |
2c75f8e7 A |
1325 | // Remove value from array $tags. |
1326 | $tags = array_diff($tags, array($_GET['removetag'])); | |
1327 | $params['searchtags'] = implode(' ',$tags); | |
1328 | ||
1329 | if (empty($params['searchtags'])) { | |
775803a0 | 1330 | unset($params['searchtags']); |
775803a0 | 1331 | } |
2c75f8e7 | 1332 | |
45034273 SS |
1333 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1334 | } | |
1335 | header('Location: ?'.http_build_query($params)); | |
1336 | exit; | |
1337 | } | |
1338 | ||
1339 | // -------- User wants to change the number of links per page (linksperpage=...) | |
775803a0 A |
1340 | if (isset($_GET['linksperpage'])) { |
1341 | if (is_numeric($_GET['linksperpage'])) { | |
1342 | $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); | |
1343 | } | |
1344 | ||
1345 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'))); | |
45034273 SS |
1346 | exit; |
1347 | } | |
bb8f712d | 1348 | |
45034273 | 1349 | // -------- User wants to see only private links (toggle) |
775803a0 A |
1350 | if (isset($_GET['privateonly'])) { |
1351 | if (empty($_SESSION['privateonly'])) { | |
1352 | $_SESSION['privateonly'] = 1; // See only private links | |
1353 | } else { | |
45034273 SS |
1354 | unset($_SESSION['privateonly']); // See all links |
1355 | } | |
775803a0 A |
1356 | |
1357 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'))); | |
45034273 SS |
1358 | exit; |
1359 | } | |
1360 | ||
1361 | // -------- Handle other actions allowed for non-logged in users: | |
1362 | if (!isLoggedIn()) | |
1363 | { | |
ad6c27b7 | 1364 | // User tries to post new link but is not logged in: |
45034273 SS |
1365 | // Show login screen, then redirect to ?post=... |
1366 | if (isset($_GET['post'])) | |
1367 | { | |
a1795ddc | 1368 | header('Location: ?do=login&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link. |
45034273 SS |
1369 | exit; |
1370 | } | |
aedc912d FE |
1371 | |
1372 | // Same case as above except that user tried to access ?do=addlink without being logged in | |
1373 | // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. | |
1374 | if (isset($_GET['do']) && $_GET['do'] === 'addlink') { | |
1375 | header('Location: ?do=login&post='); | |
1376 | exit; | |
1377 | } | |
6fc14d53 | 1378 | showLinkList($PAGE, $LINKSDB); |
5fbabbb9 A |
1379 | if (isset($_GET['edit_link'])) { |
1380 | header('Location: ?do=login&edit_link='. escape($_GET['edit_link'])); | |
1381 | exit; | |
1382 | } | |
1383 | ||
ad6c27b7 | 1384 | exit; // Never remove this one! All operations below are reserved for logged in user. |
45034273 SS |
1385 | } |
1386 | ||
1387 | // -------- All other functions are reserved for the registered user: | |
1388 | ||
1389 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
6fc14d53 | 1390 | if ($targetPage == Router::$PAGE_TOOLS) |
45034273 | 1391 | { |
6fc14d53 A |
1392 | $data = array( |
1393 | 'linkcount' => count($LINKSDB), | |
1394 | 'pageabsaddr' => index_url($_SERVER), | |
1395 | ); | |
1396 | $pluginManager->executeHooks('render_tools', $data); | |
1397 | ||
1398 | foreach ($data as $key => $value) { | |
1399 | $PAGE->assign($key, $value); | |
1400 | } | |
1401 | ||
45034273 SS |
1402 | $PAGE->renderPage('tools'); |
1403 | exit; | |
1404 | } | |
1405 | ||
1406 | // -------- User wants to change his/her password. | |
6fc14d53 | 1407 | if ($targetPage == Router::$PAGE_CHANGEPASSWORD) |
45034273 SS |
1408 | { |
1409 | if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); | |
1410 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
1411 | { | |
ad6c27b7 | 1412 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1413 | |
1414 | // Make sure old password is correct. | |
1415 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
fe16b01e | 1416 | if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } |
45034273 SS |
1417 | // Save new password |
1418 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1419 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
dd484b90 A |
1420 | try { |
1421 | writeConfig($GLOBALS, isLoggedIn()); | |
1422 | } | |
1423 | catch(Exception $e) { | |
1424 | error_log( | |
1425 | 'ERROR while writing config file after changing password.' . PHP_EOL . | |
1426 | $e->getMessage() | |
1427 | ); | |
1428 | ||
1429 | // TODO: do not handle exceptions/errors in JS. | |
1430 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1431 | exit; | |
1432 | } | |
fe16b01e | 1433 | echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1434 | exit; |
1435 | } | |
1436 | else // show the change password form. | |
1437 | { | |
45034273 SS |
1438 | $PAGE->assign('linkcount',count($LINKSDB)); |
1439 | $PAGE->assign('token',getToken()); | |
1440 | $PAGE->renderPage('changepassword'); | |
1441 | exit; | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | // -------- User wants to change configuration | |
6fc14d53 | 1446 | if ($targetPage == Router::$PAGE_CONFIGURE) |
45034273 SS |
1447 | { |
1448 | if (!empty($_POST['title']) ) | |
1449 | { | |
ad6c27b7 | 1450 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1451 | $tz = 'UTC'; |
1452 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
d1e2f8e5 | 1453 | if (isTimeZoneValid($_POST['continent'],$_POST['city'])) |
45034273 SS |
1454 | $tz = $_POST['continent'].'/'.$_POST['city']; |
1455 | $GLOBALS['timezone'] = $tz; | |
1456 | $GLOBALS['title']=$_POST['title']; | |
ebb2880d | 1457 | $GLOBALS['titleLink']=$_POST['titleLink']; |
45034273 SS |
1458 | $GLOBALS['redirector']=$_POST['redirector']; |
1459 | $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); | |
bb8f712d | 1460 | $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); |
ed5b38dd | 1461 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); |
329e0768 | 1462 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
caee7ff9 | 1463 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']); |
dd484b90 A |
1464 | try { |
1465 | writeConfig($GLOBALS, isLoggedIn()); | |
1466 | } | |
1467 | catch(Exception $e) { | |
1468 | error_log( | |
1469 | 'ERROR while writing config file after configuration update.' . PHP_EOL . | |
1470 | $e->getMessage() | |
1471 | ); | |
1472 | ||
1473 | // TODO: do not handle exceptions/errors in JS. | |
1474 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1475 | exit; | |
1476 | } | |
fe16b01e | 1477 | echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1478 | exit; |
1479 | } | |
1480 | else // Show the configuration form. | |
1481 | { | |
45034273 SS |
1482 | $PAGE->assign('linkcount',count($LINKSDB)); |
1483 | $PAGE->assign('token',getToken()); | |
5f85fcd8 A |
1484 | $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] ); |
1485 | $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] ); | |
d1e2f8e5 V |
1486 | list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']); |
1487 | $PAGE->assign('timezone_form', $timezone_form); | |
45034273 SS |
1488 | $PAGE->assign('timezone_js',$timezone_js); |
1489 | $PAGE->renderPage('configure'); | |
1490 | exit; | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | // -------- User wants to rename a tag or delete it | |
6fc14d53 | 1495 | if ($targetPage == Router::$PAGE_CHANGETAG) |
45034273 | 1496 | { |
6a6aa2b9 A |
1497 | if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) { |
1498 | $PAGE->assign('linkcount', count($LINKSDB)); | |
1499 | $PAGE->assign('token', getToken()); | |
bdd1715b | 1500 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1501 | $PAGE->renderPage('changetag'); |
1502 | exit; | |
1503 | } | |
6a6aa2b9 A |
1504 | |
1505 | if (!tokenOk($_POST['token'])) { | |
1506 | die('Wrong token.'); | |
1507 | } | |
45034273 SS |
1508 | |
1509 | // Delete a tag: | |
6a6aa2b9 | 1510 | if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) { |
45034273 | 1511 | $needle=trim($_POST['fromtag']); |
822bffce A |
1512 | // True for case-sensitive tag search. |
1513 | $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true); | |
45034273 SS |
1514 | foreach($linksToAlter as $key=>$value) |
1515 | { | |
1516 | $tags = explode(' ',trim($value['tags'])); | |
1517 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
1518 | $value['tags']=trim(implode(' ',$tags)); | |
1519 | $LINKSDB[$key]=$value; | |
1520 | } | |
2e28269b | 1521 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); |
fe16b01e | 1522 | echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; |
45034273 SS |
1523 | exit; |
1524 | } | |
1525 | ||
1526 | // Rename a tag: | |
6a6aa2b9 | 1527 | if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) { |
45034273 | 1528 | $needle=trim($_POST['fromtag']); |
822bffce A |
1529 | // True for case-sensitive tag search. |
1530 | $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true); | |
45034273 SS |
1531 | foreach($linksToAlter as $key=>$value) |
1532 | { | |
1533 | $tags = explode(' ',trim($value['tags'])); | |
ad6c27b7 | 1534 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. |
45034273 SS |
1535 | $value['tags']=trim(implode(' ',$tags)); |
1536 | $LINKSDB[$key]=$value; | |
1537 | } | |
01e48f26 | 1538 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. |
fe16b01e | 1539 | echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; |
45034273 SS |
1540 | exit; |
1541 | } | |
1542 | } | |
1543 | ||
ad6c27b7 | 1544 | // -------- User wants to add a link without using the bookmarklet: Show form. |
6fc14d53 | 1545 | if ($targetPage == Router::$PAGE_ADDLINK) |
45034273 | 1546 | { |
45034273 SS |
1547 | $PAGE->assign('linkcount',count($LINKSDB)); |
1548 | $PAGE->renderPage('addlink'); | |
1549 | exit; | |
1550 | } | |
1551 | ||
1552 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
1553 | if (isset($_POST['save_edit'])) | |
1554 | { | |
5a23950c A |
1555 | // Go away! |
1556 | if (! tokenOk($_POST['token'])) { | |
1557 | die('Wrong token.'); | |
1558 | } | |
1559 | // Remove multiple spaces. | |
1560 | $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags'])); | |
ce354bf1 A |
1561 | // Remove first '-' char in tags. |
1562 | $tags = preg_replace('/(^| )\-/', '$1', $tags); | |
5a23950c A |
1563 | // Remove duplicates. |
1564 | $tags = implode(' ', array_unique(explode(' ', $tags))); | |
1565 | $linkdate = $_POST['lf_linkdate']; | |
feebc6d4 | 1566 | $url = trim($_POST['lf_url']); |
5a23950c A |
1567 | if (! startsWith($url, 'http:') && ! startsWith($url, 'https:') |
1568 | && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:') | |
1569 | && ! startsWith($url, '?') && ! startsWith($url, 'javascript:') | |
1570 | ) { | |
1571 | $url = 'http://' . $url; | |
1572 | } | |
1573 | ||
1574 | $link = array( | |
1575 | 'title' => trim($_POST['lf_title']), | |
1576 | 'url' => $url, | |
1577 | 'description' => trim($_POST['lf_description']), | |
1578 | 'private' => (isset($_POST['lf_private']) ? 1 : 0), | |
1579 | 'linkdate' => $linkdate, | |
1580 | 'tags' => str_replace(',', ' ', $tags) | |
1581 | ); | |
1582 | // If title is empty, use the URL as title. | |
1583 | if ($link['title'] == '') { | |
1584 | $link['title'] = $link['url']; | |
1585 | } | |
6fc14d53 A |
1586 | |
1587 | $pluginManager->executeHooks('save_link', $link); | |
1588 | ||
45034273 | 1589 | $LINKSDB[$linkdate] = $link; |
5a23950c | 1590 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); |
45034273 SS |
1591 | pubsubhub(); |
1592 | ||
1593 | // If we are called from the bookmarklet, we must close the popup: | |
d01c2342 A |
1594 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { |
1595 | echo '<script>self.close();</script>'; | |
1596 | exit; | |
1597 | } | |
1598 | ||
fd50e14c | 1599 | $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?'; |
775803a0 | 1600 | $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); |
5a23950c A |
1601 | // Scroll to the link which has been edited. |
1602 | $location .= '#' . smallHash($_POST['lf_linkdate']); | |
1603 | // After saving the link, redirect to the page the user was on. | |
1604 | header('Location: '. $location); | |
45034273 SS |
1605 | exit; |
1606 | } | |
1607 | ||
1608 | // -------- User clicked the "Cancel" button when editing a link. | |
1609 | if (isset($_POST['cancel_edit'])) | |
1610 | { | |
ad6c27b7 | 1611 | // If we are called from the bookmarklet, we must close the popup: |
d33c5d4c | 1612 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
45034273 | 1613 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
b342b2a4 | 1614 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. |
775803a0 | 1615 | $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); |
45034273 SS |
1616 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. |
1617 | exit; | |
1618 | } | |
1619 | ||
ad6c27b7 | 1620 | // -------- User clicked the "Delete" button when editing a link: Delete link from database. |
45034273 SS |
1621 | if (isset($_POST['delete_link'])) |
1622 | { | |
1623 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1624 | // We do not need to ask for confirmation: | |
ad6c27b7 | 1625 | // - confirmation is handled by JavaScript |
45034273 SS |
1626 | // - we are protected from XSRF by the token. |
1627 | $linkdate=$_POST['lf_linkdate']; | |
6fc14d53 A |
1628 | |
1629 | $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]); | |
1630 | ||
45034273 | 1631 | unset($LINKSDB[$linkdate]); |
01e48f26 | 1632 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk |
45034273 SS |
1633 | |
1634 | // If we are called from the bookmarklet, we must close the popup: | |
d33c5d4c | 1635 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
d528433d | 1636 | // Pick where we're going to redirect |
1637 | // ============================================================= | |
1638 | // Basically, we can't redirect to where we were previously if it was a permalink | |
1639 | // or an edit_link, because it would 404. | |
1640 | // Cases: | |
1641 | // - / : nothing in $_GET, redirect to self | |
1642 | // - /?page : redirect to self | |
d33c5d4c | 1643 | // - /?searchterm : redirect to self (there might be other links) |
d528433d | 1644 | // - /?searchtags : redirect to self |
1645 | // - /permalink : redirect to / (the link does not exist anymore) | |
1646 | // - /?edit_link : redirect to / (the link does not exist anymore) | |
1647 | // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self | |
1648 | // redirect is not satisfied, and only then redirect to / | |
1649 | $location = "?"; | |
1650 | // Self redirection | |
775803a0 A |
1651 | if (count($_GET) == 0 |
1652 | || isset($_GET['page']) | |
1653 | || isset($_GET['searchterm']) | |
1654 | || isset($_GET['searchtags']) | |
1655 | ) { | |
d528433d | 1656 | if (isset($_POST['returnurl'])) { |
1657 | $location = $_POST['returnurl']; // Handle redirects given by the form | |
775803a0 A |
1658 | } else { |
1659 | $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link')); | |
d528433d | 1660 | } |
1661 | } | |
1662 | ||
1663 | header('Location: ' . $location); // After deleting the link, redirect to appropriate location | |
45034273 SS |
1664 | exit; |
1665 | } | |
1666 | ||
1667 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
1668 | if (isset($_GET['edit_link'])) | |
1669 | { | |
1670 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
1671 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
6fc14d53 A |
1672 | $data = array( |
1673 | 'linkcount' => count($LINKSDB), | |
1674 | 'link' => $link, | |
1675 | 'link_is_new' => false, | |
1676 | 'token' => getToken(), | |
1677 | 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''), | |
1678 | 'tags' => $LINKSDB->allTags(), | |
1679 | ); | |
1680 | $pluginManager->executeHooks('render_editlink', $data); | |
1681 | ||
1682 | foreach ($data as $key => $value) { | |
1683 | $PAGE->assign($key, $value); | |
1684 | } | |
1685 | ||
45034273 SS |
1686 | $PAGE->renderPage('editlink'); |
1687 | exit; | |
1688 | } | |
1689 | ||
1690 | // -------- User want to post a new link: Display link edit form. | |
d9d776af | 1691 | if (isset($_GET['post'])) { |
1557cefb | 1692 | $url = cleanup_url(escape($_GET['post'])); |
45034273 SS |
1693 | |
1694 | $link_is_new = false; | |
9e1724f1 | 1695 | // Check if URL is not already in database (in this case, we will edit the existing link) |
ef591e7e | 1696 | $link = $LINKSDB->getLinkFromUrl($url); |
45034273 SS |
1697 | if (!$link) |
1698 | { | |
9e1724f1 | 1699 | $link_is_new = true; |
45034273 | 1700 | $linkdate = strval(date('Ymd_His')); |
9e1724f1 | 1701 | // Get title if it was provided in URL (by the bookmarklet). |
739dc243 | 1702 | $title = empty($_GET['title']) ? '' : escape($_GET['title']); |
9e1724f1 | 1703 | // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] |
739dc243 A |
1704 | $description = empty($_GET['description']) ? '' : escape($_GET['description']); |
1705 | $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']); | |
1706 | $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0; | |
26c50346 | 1707 | // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.) |
ef591e7e | 1708 | if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) { |
451314eb | 1709 | // Short timeout to keep the application responsive |
1557cefb | 1710 | list($headers, $content) = get_http_response($url, 4); |
451314eb | 1711 | if (strpos($headers[0], '200 OK') !== false) { |
1557cefb A |
1712 | // Retrieve charset. |
1713 | $charset = get_charset($headers, $content); | |
1714 | // Extract title. | |
1715 | $title = html_extract_title($content); | |
1716 | // Re-encode title in utf-8 if necessary. | |
1717 | if (! empty($title) && $charset != 'utf-8') { | |
1718 | $title = mb_convert_encoding($title, $charset, 'utf-8'); | |
9e1724f1 A |
1719 | } |
1720 | } | |
45034273 | 1721 | } |
1557cefb | 1722 | |
9e1724f1 A |
1723 | if ($url == '') { |
1724 | $url = '?' . smallHash($linkdate); | |
1725 | $title = 'Note: '; | |
27646ca5 | 1726 | } |
1557cefb | 1727 | |
9e1724f1 A |
1728 | $link = array( |
1729 | 'linkdate' => $linkdate, | |
1730 | 'title' => $title, | |
ef591e7e | 1731 | 'url' => $url, |
9e1724f1 A |
1732 | 'description' => $description, |
1733 | 'tags' => $tags, | |
1734 | 'private' => $private | |
1735 | ); | |
45034273 SS |
1736 | } |
1737 | ||
6fc14d53 A |
1738 | $data = array( |
1739 | 'linkcount' => count($LINKSDB), | |
1740 | 'link' => $link, | |
1741 | 'link_is_new' => $link_is_new, | |
1742 | 'token' => getToken(), // XSRF protection. | |
1743 | 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''), | |
1744 | 'source' => (isset($_GET['source']) ? $_GET['source'] : ''), | |
1745 | 'tags' => $LINKSDB->allTags(), | |
1746 | ); | |
1747 | $pluginManager->executeHooks('render_editlink', $data); | |
1748 | ||
1749 | foreach ($data as $key => $value) { | |
1750 | $PAGE->assign($key, $value); | |
1751 | } | |
1752 | ||
45034273 SS |
1753 | $PAGE->renderPage('editlink'); |
1754 | exit; | |
1755 | } | |
1756 | ||
1757 | // -------- Export as Netscape Bookmarks HTML file. | |
6fc14d53 | 1758 | if ($targetPage == Router::$PAGE_EXPORT) |
45034273 SS |
1759 | { |
1760 | if (empty($_GET['what'])) | |
1761 | { | |
45034273 SS |
1762 | $PAGE->assign('linkcount',count($LINKSDB)); |
1763 | $PAGE->renderPage('export'); | |
1764 | exit; | |
1765 | } | |
1766 | $exportWhat=$_GET['what']; | |
ad6c27b7 | 1767 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); |
45034273 SS |
1768 | |
1769 | header('Content-Type: text/html; charset=utf-8'); | |
1770 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); | |
1771 | $currentdate=date('Y/m/d H:i:s'); | |
1772 | echo <<<HTML | |
1773 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
1774 | <!-- This is an automatically generated file. | |
1775 | It will be read and overwritten. | |
1776 | DO NOT EDIT! --> | |
1777 | <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} --> | |
1778 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
1779 | <TITLE>Bookmarks</TITLE> | |
1780 | <H1>Bookmarks</H1> | |
1781 | HTML; | |
1782 | foreach($LINKSDB as $link) | |
1783 | { | |
1784 | if ($exportWhat=='all' || | |
1785 | ($exportWhat=='private' && $link['private']!=0) || | |
1786 | ($exportWhat=='public' && $link['private']==0)) | |
1787 | { | |
5f85fcd8 A |
1788 | echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; |
1789 | if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"'; | |
1790 | echo '>'.$link['title']."</A>\n"; | |
1791 | if ($link['description']!='') echo '<DD>'.$link['description']."\n"; | |
45034273 SS |
1792 | } |
1793 | } | |
1794 | exit; | |
1795 | } | |
1796 | ||
1797 | // -------- User is uploading a file for import | |
1798 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1799 | { | |
1800 | // If file is too big, some form field may be missing. | |
1801 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1802 | { | |
1803 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
5f85fcd8 | 1804 | echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>'; |
45034273 SS |
1805 | exit; |
1806 | } | |
1807 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1808 | importFile(); | |
1809 | exit; | |
1810 | } | |
1811 | ||
1812 | // -------- Show upload/import dialog: | |
6fc14d53 | 1813 | if ($targetPage == Router::$PAGE_IMPORT) |
45034273 | 1814 | { |
45034273 SS |
1815 | $PAGE->assign('linkcount',count($LINKSDB)); |
1816 | $PAGE->assign('token',getToken()); | |
1817 | $PAGE->assign('maxfilesize',getMaxFileSize()); | |
1818 | $PAGE->renderPage('import'); | |
1819 | exit; | |
1820 | } | |
1821 | ||
dea0ba28 A |
1822 | // Plugin administration page |
1823 | if ($targetPage == Router::$PAGE_PLUGINSADMIN) { | |
1824 | $pluginMeta = $pluginManager->getPluginsMeta(); | |
1825 | ||
1826 | // Split plugins into 2 arrays: ordered enabled plugins and disabled. | |
1827 | $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; }); | |
1828 | // Load parameters. | |
1829 | $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $GLOBALS['plugins']); | |
1830 | uasort( | |
1831 | $enabledPlugins, | |
1832 | function($a, $b) { return $a['order'] - $b['order']; } | |
1833 | ); | |
1834 | $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; }); | |
1835 | ||
1836 | $PAGE->assign('enabledPlugins', $enabledPlugins); | |
1837 | $PAGE->assign('disabledPlugins', $disabledPlugins); | |
1838 | $PAGE->renderPage('pluginsadmin'); | |
1839 | exit; | |
1840 | } | |
1841 | ||
1842 | // Plugin administration form action | |
1843 | if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) { | |
1844 | try { | |
1845 | if (isset($_POST['parameters_form'])) { | |
1846 | unset($_POST['parameters_form']); | |
1847 | foreach ($_POST as $param => $value) { | |
1848 | $GLOBALS['plugins'][$param] = escape($value); | |
1849 | } | |
1850 | } | |
1851 | else { | |
1852 | $GLOBALS['config']['ENABLED_PLUGINS'] = save_plugin_config($_POST); | |
1853 | } | |
1854 | writeConfig($GLOBALS, isLoggedIn()); | |
1855 | } | |
1856 | catch (Exception $e) { | |
1857 | error_log( | |
1858 | 'ERROR while saving plugin configuration:.' . PHP_EOL . | |
1859 | $e->getMessage() | |
1860 | ); | |
1861 | ||
1862 | // TODO: do not handle exceptions/errors in JS. | |
59edea42 | 1863 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>'; |
dea0ba28 A |
1864 | exit; |
1865 | } | |
1866 | header('Location: ?do='. Router::$PAGE_PLUGINSADMIN); | |
1867 | exit; | |
1868 | } | |
1869 | ||
45034273 | 1870 | // -------- Otherwise, simply display search form and links: |
6fc14d53 | 1871 | showLinkList($PAGE, $LINKSDB); |
45034273 SS |
1872 | exit; |
1873 | } | |
1874 | ||
1875 | // ----------------------------------------------------------------------------------------------- | |
1876 | // Process the import file form. | |
1877 | function importFile() | |
1878 | { | |
02ad8fb6 | 1879 | if (!isLoggedIn()) { die('Not allowed.'); } |
9f15ca9e | 1880 | $LINKSDB = new LinkDB( |
9c8752a2 | 1881 | $GLOBALS['config']['DATASTORE'], |
02ad8fb6 | 1882 | isLoggedIn(), |
90e5bd65 A |
1883 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'], |
1884 | $GLOBALS['redirector'] | |
9f15ca9e | 1885 | ); |
45034273 SS |
1886 | $filename=$_FILES['filetoupload']['name']; |
1887 | $filesize=$_FILES['filetoupload']['size']; | |
1888 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
ad6c27b7 | 1889 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? |
1890 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? | |
45034273 SS |
1891 | $import_count=0; |
1892 | ||
1893 | // Sniff file type: | |
1894 | $type='unknown'; | |
1895 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1896 | ||
1897 | // Then import the bookmarks. | |
1898 | if ($type=='netscape') | |
1899 | { | |
1900 | // This is a standard Netscape-style bookmark file. | |
ad6c27b7 | 1901 | // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. |
45034273 SS |
1902 | foreach(explode('<DT>',$data) as $html) // explode is very fast |
1903 | { | |
1904 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1905 | $d = explode('<DD>',$html); | |
1906 | if (startswith($d[0],'<A ')) | |
1907 | { | |
1908 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) | |
1909 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
1910 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); | |
1911 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
1912 | $raw_add_date=0; | |
1913 | foreach($matches as $m) | |
1914 | { | |
1915 | $attr=$m[1]; $value=$m[2]; | |
1916 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); | |
fc93ae1d AA |
1917 | elseif ($attr=='ADD_DATE') |
1918 | { | |
1919 | $raw_add_date=intval($value); | |
1920 | if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds | |
1921 | } | |
45034273 SS |
1922 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); |
1923 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); | |
1924 | } | |
1925 | if ($link['url']!='') | |
1926 | { | |
1927 | if ($private==1) $link['private']=1; | |
1928 | $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. | |
1929 | if ($dblink==false) | |
1930 | { // Link not in database, let's import it... | |
1931 | if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE | |
1932 | ||
1933 | // Make sure date/time is not already used by another link. | |
1934 | // (Some bookmark files have several different links with the same ADD_DATE) | |
ad6c27b7 | 1935 | // We increment date by 1 second until we find a date which is not used in DB. |
45034273 SS |
1936 | // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) |
1937 | while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. | |
1938 | $link['linkdate']=date('Ymd_His',$raw_add_date); | |
1939 | $LINKSDB[$link['linkdate']] = $link; | |
1940 | $import_count++; | |
1941 | } | |
ad6c27b7 | 1942 | else // Link already present in database. |
45034273 SS |
1943 | { |
1944 | if ($overwrite) | |
1945 | { // If overwrite is required, we import link data, except date/time. | |
1946 | $link['linkdate']=$dblink['linkdate']; | |
1947 | $LINKSDB[$link['linkdate']] = $link; | |
1948 | $import_count++; | |
1949 | } | |
1950 | } | |
1951 | ||
1952 | } | |
1953 | } | |
1954 | } | |
01e48f26 | 1955 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); |
45034273 | 1956 | |
fe16b01e | 1957 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; |
45034273 SS |
1958 | } |
1959 | else | |
1960 | { | |
fe16b01e | 1961 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; |
45034273 SS |
1962 | } |
1963 | } | |
1964 | ||
1965 | // ----------------------------------------------------------------------------------------------- | |
1966 | // Template for the list of links (<div id="linklist">) | |
1967 | // This function fills all the necessary fields in the $PAGE for the template 'linklist.html' | |
1968 | function buildLinkList($PAGE,$LINKSDB) | |
1969 | { | |
1970 | // ---- Filter link database according to parameters | |
822bffce A |
1971 | $search_type = ''; |
1972 | $search_crits = ''; | |
1973 | $privateonly = !empty($_SESSION['privateonly']) ? true : false; | |
1974 | ||
1975 | // Fulltext search | |
1976 | if (isset($_GET['searchterm'])) { | |
1977 | $search_crits = escape(trim($_GET['searchterm'])); | |
1978 | $search_type = LinkFilter::$FILTER_TEXT; | |
1979 | $linksToDisplay = $LINKSDB->filter($search_type, $search_crits, false, $privateonly); | |
1980 | } | |
1981 | // Search by tag | |
1982 | elseif (isset($_GET['searchtags'])) { | |
1983 | $search_crits = explode(' ', escape(trim($_GET['searchtags']))); | |
1984 | $search_type = LinkFilter::$FILTER_TAG; | |
1985 | $linksToDisplay = $LINKSDB->filter($search_type, $search_crits, false, $privateonly); | |
1986 | } | |
1987 | // Detect smallHashes in URL. | |
1988 | elseif (isset($_SERVER['QUERY_STRING']) | |
1989 | && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/', $_SERVER['QUERY_STRING'])) { | |
1990 | $search_type = LinkFilter::$FILTER_HASH; | |
1991 | $search_crits = substr(trim($_SERVER["QUERY_STRING"], '/'), 0, 6); | |
1992 | $linksToDisplay = $LINKSDB->filter($search_type, $search_crits); | |
1993 | ||
1994 | if (count($linksToDisplay) == 0) { | |
f4c84ad7 | 1995 | $PAGE->render404('The link you are trying to reach does not exist or has been deleted.'); |
45034273 SS |
1996 | exit; |
1997 | } | |
45034273 | 1998 | } |
822bffce A |
1999 | // Otherwise, display without filtering. |
2000 | else { | |
2001 | $linksToDisplay = $LINKSDB->filter('', '', false, $privateonly); | |
45034273 SS |
2002 | } |
2003 | ||
2004 | // ---- Handle paging. | |
822bffce A |
2005 | $keys = array(); |
2006 | foreach ($linksToDisplay as $key => $value) { | |
2007 | $keys[] = $key; | |
2008 | } | |
45034273 SS |
2009 | |
2010 | // If there is only a single link, we change on-the-fly the title of the page. | |
822bffce A |
2011 | if (count($linksToDisplay) == 1) { |
2012 | $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title']; | |
2013 | } | |
45034273 SS |
2014 | |
2015 | // Select articles according to paging. | |
822bffce A |
2016 | $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']); |
2017 | $pagecount = $pagecount == 0 ? 1 : $pagecount; | |
2018 | $page= empty($_GET['page']) ? 1 : intval($_GET['page']); | |
2019 | $page = $page < 1 ? 1 : $page; | |
2020 | $page = $page > $pagecount ? $pagecount : $page; | |
2021 | // Start index. | |
2022 | $i = ($page-1) * $_SESSION['LINKS_PER_PAGE']; | |
2023 | $end = $i + $_SESSION['LINKS_PER_PAGE']; | |
2024 | $linkDisp = array(); | |
45034273 SS |
2025 | while ($i<$end && $i<count($keys)) |
2026 | { | |
2027 | $link = $linksToDisplay[$keys[$i]]; | |
90e5bd65 | 2028 | $link['description'] = format_description($link['description'], $GLOBALS['redirector']); |
822bffce A |
2029 | $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight'; |
2030 | $link['class'] = $link['private'] == 0 ? $classLi : 'private'; | |
2031 | $link['timestamp'] = linkdate2timestamp($link['linkdate']); | |
2032 | $taglist = explode(' ', $link['tags']); | |
a5752e77 | 2033 | uasort($taglist, 'strcasecmp'); |
822bffce | 2034 | $link['taglist'] = $taglist; |
6fc14d53 | 2035 | $link['shorturl'] = smallHash($link['linkdate']); |
822bffce A |
2036 | // Check for both signs of a note: starting with ? and 7 chars long. |
2037 | if ($link['url'][0] === '?' && | |
2038 | strlen($link['url']) === 7) { | |
2039 | $link['url'] = index_url($_SERVER) . $link['url']; | |
b47f515a | 2040 | } |
d33c5d4c | 2041 | |
45034273 SS |
2042 | $linkDisp[$keys[$i]] = $link; |
2043 | $i++; | |
2044 | } | |
bb8f712d | 2045 | |
45034273 | 2046 | // Compute paging navigation |
822bffce A |
2047 | $searchterm = empty($_GET['searchterm']) ? '' : '&searchterm=' . $_GET['searchterm']; |
2048 | $searchtags = empty($_GET['searchtags']) ? '' : '&searchtags=' . $_GET['searchtags']; | |
2049 | $previous_page_url = ''; | |
2050 | if ($i != count($keys)) { | |
2051 | $previous_page_url = '?page=' . ($page+1) . $searchterm . $searchtags; | |
2052 | } | |
2053 | $next_page_url=''; | |
2054 | if ($page>1) { | |
2055 | $next_page_url = '?page=' . ($page-1) . $searchterm . $searchtags; | |
2056 | } | |
45034273 | 2057 | |
822bffce A |
2058 | $token = ''; |
2059 | if (isLoggedIn()) { | |
2060 | $token = getToken(); | |
2061 | } | |
bb8f712d | 2062 | |
45034273 | 2063 | // Fill all template fields. |
6fc14d53 A |
2064 | $data = array( |
2065 | 'linkcount' => count($LINKSDB), | |
2066 | 'previous_page_url' => $previous_page_url, | |
2067 | 'next_page_url' => $next_page_url, | |
2068 | 'page_current' => $page, | |
2069 | 'page_max' => $pagecount, | |
2070 | 'result_count' => count($linksToDisplay), | |
2071 | 'search_type' => $search_type, | |
2072 | 'search_crits' => $search_crits, | |
2073 | 'redirector' => empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'], // Optional redirector URL. | |
2074 | 'token' => $token, | |
2075 | 'links' => $linkDisp, | |
2076 | 'tags' => $LINKSDB->allTags(), | |
2077 | ); | |
18cca483 A |
2078 | // FIXME! temporary fix - see #399. |
2079 | if (!empty($GLOBALS['pagetitle']) && count($linkDisp) == 1) { | |
2080 | $data['pagetitle'] = $GLOBALS['pagetitle']; | |
2081 | } | |
6fc14d53 A |
2082 | |
2083 | $pluginManager = PluginManager::getInstance(); | |
2084 | $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn())); | |
2085 | ||
2086 | foreach ($data as $key => $value) { | |
2087 | $PAGE->assign($key, $value); | |
2088 | } | |
2089 | ||
45034273 SS |
2090 | return; |
2091 | } | |
2092 | ||
2093 | // Compute the thumbnail for a link. | |
bb8f712d | 2094 | // |
ad6c27b7 | 2095 | // With a link to the original URL. |
45034273 | 2096 | // Understands various services (youtube.com...) |
ad6c27b7 | 2097 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2098 | // $href = if provided, this URL will be followed instead of $url |
2099 | // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt) | |
2100 | // Some of them may be missing. | |
2101 | // Return an empty array if no thumbnail available. | |
2102 | function computeThumbnail($url,$href=false) | |
2103 | { | |
2104 | if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array(); | |
2105 | if ($href==false) $href=$url; | |
2106 | ||
2107 | // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link. | |
ad6c27b7 | 2108 | // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg ) |
45034273 SS |
2109 | // ^^^^^^^^^^^ ^^^^^^^^^^^ |
2110 | $domain = parse_url($url,PHP_URL_HOST); | |
2111 | if ($domain=='youtube.com' || $domain=='www.youtube.com') | |
2112 | { | |
2113 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail | |
1a663a0f | 2114 | if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg', |
45034273 SS |
2115 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
2116 | } | |
2117 | if ($domain=='youtu.be') // Youtube short links | |
2118 | { | |
2119 | $path = parse_url($url,PHP_URL_PATH); | |
1a663a0f | 2120 | return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg', |
bb8f712d | 2121 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
45034273 SS |
2122 | } |
2123 | if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting | |
2124 | { | |
2125 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename. | |
2126 | if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']), | |
bb8f712d KT |
2127 | 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail'); |
2128 | } | |
2129 | ||
45034273 SS |
2130 | if ($domain=='imgur.com') |
2131 | { | |
2132 | $path = parse_url($url,PHP_URL_PATH); | |
2133 | if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available. | |
1a663a0f | 2134 | if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg', |
45034273 | 2135 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1a663a0f | 2136 | if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg', |
45034273 SS |
2137 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2138 | ||
1a663a0f | 2139 | if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg', |
45034273 SS |
2140 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2141 | } | |
2142 | if ($domain=='i.imgur.com') | |
2143 | { | |
2144 | $pi = pathinfo(parse_url($url,PHP_URL_PATH)); | |
1a663a0f | 2145 | if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg', |
45034273 SS |
2146 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2147 | } | |
2148 | if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com') | |
2149 | { | |
2150 | if (strpos($url,'dailymotion.com/video/')!==false) | |
2151 | { | |
2152 | $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url); | |
2153 | return array('src'=>$thumburl, | |
2154 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail'); | |
2155 | } | |
2156 | } | |
2157 | if (endsWith($domain,'.imageshack.us')) | |
2158 | { | |
2159 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
2160 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
2161 | { | |
2162 | $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext; | |
2163 | return array('src'=>$thumburl, | |
2164 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail'); | |
2165 | } | |
2166 | } | |
2167 | ||
2168 | // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL. | |
2169 | // So we deport the thumbnail generation in order not to slow down page generation | |
2170 | // (and we also cache the thumbnail) | |
2171 | ||
2172 | if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache. | |
2173 | ||
2174 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com') | |
2175 | || $domain=='vimeo.com' | |
2176 | || $domain=='ted.com' || endsWith($domain,'.ted.com') | |
2177 | || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com') | |
2178 | ) | |
2179 | { | |
2180 | if ($domain=='vimeo.com') | |
ad6c27b7 | 2181 | { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric) |
45034273 SS |
2182 | $path = parse_url($url,PHP_URL_PATH); |
2183 | if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL. | |
2184 | } | |
2185 | if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
ad6c27b7 | 2186 | { // Make sure this URL points to a single comic (/xxx... where xxx is numeric) |
45034273 SS |
2187 | $path = parse_url($url,PHP_URL_PATH); |
2188 | if (!preg_match('!/\d+.+?!',$path)) return array(); | |
2189 | } | |
2190 | if ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
ad6c27b7 | 2191 | { // Make sure this TED URL points to a video (/talks/...) |
45034273 SS |
2192 | $path = parse_url($url,PHP_URL_PATH); |
2193 | if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL. | |
2194 | } | |
2195 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
482d67bd | 2196 | return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
45034273 SS |
2197 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
2198 | } | |
2199 | ||
2200 | // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif | |
2201 | // Technically speaking, we should download ALL links and check their Content-Type to see if they are images. | |
2202 | // But using the extension will do. | |
2203 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
2204 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
2205 | { | |
2206 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
482d67bd | 2207 | return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
bb8f712d | 2208 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
45034273 SS |
2209 | } |
2210 | return array(); // No thumbnail. | |
2211 | ||
2212 | } | |
2213 | ||
2214 | ||
2215 | // Returns the HTML code to display a thumbnail for a link | |
2216 | // with a link to the original URL. | |
2217 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2218 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2219 | // $href = if provided, this URL will be followed instead of $url |
2220 | // Returns '' if no thumbnail available. | |
2221 | function thumbnail($url,$href=false) | |
2222 | { | |
2223 | $t = computeThumbnail($url,$href); | |
2224 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
bb8f712d | 2225 | |
5f85fcd8 A |
2226 | $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"'; |
2227 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
2228 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2229 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2230 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 SS |
2231 | $html.='></a>'; |
2232 | return $html; | |
2233 | } | |
2234 | ||
45034273 SS |
2235 | // Returns the HTML code to display a thumbnail for a link |
2236 | // for the picture wall (using lazy image loading) | |
2237 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2238 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2239 | // $href = if provided, this URL will be followed instead of $url |
2240 | // Returns '' if no thumbnail available. | |
2241 | function lazyThumbnail($url,$href=false) | |
2242 | { | |
bb8f712d | 2243 | $t = computeThumbnail($url,$href); |
45034273 SS |
2244 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. |
2245 | ||
5f85fcd8 | 2246 | $html='<a href="'.escape($t['href']).'">'; |
bb8f712d | 2247 | |
34047d23 | 2248 | // Lazy image |
5f85fcd8 | 2249 | $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"'; |
858c5c2b | 2250 | |
5f85fcd8 A |
2251 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; |
2252 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2253 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2254 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2255 | $html.='>'; |
bb8f712d | 2256 | |
ad6c27b7 | 2257 | // No-JavaScript fallback. |
5f85fcd8 A |
2258 | $html.='<noscript><img src="'.escape($t['src']).'"'; |
2259 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
2260 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2261 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2262 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2263 | $html.='></noscript></a>'; |
bb8f712d | 2264 | |
45034273 SS |
2265 | return $html; |
2266 | } | |
2267 | ||
2268 | ||
2269 | // ----------------------------------------------------------------------------------------------- | |
2270 | // Installation | |
2271 | // This function should NEVER be called if the file data/config.php exists. | |
2272 | function install() | |
2273 | { | |
2274 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. | |
f6a6ca0a | 2275 | if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); |
45034273 | 2276 | |
f37664a2 SS |
2277 | |
2278 | // This part makes sure sessions works correctly. | |
2279 | // (Because on some hosts, session.save_path may not be set correctly, | |
2280 | // or we may not have write access to it.) | |
2281 | if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) | |
2282 | { // Step 2: Check if data in session is correct. | |
2283 | echo '<pre>Sessions do not seem to work correctly on your server.<br>'; | |
2284 | echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>'; | |
01ec1791 | 2285 | echo 'It currently points to '.session_save_path().'<br>'; |
2286 | echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'; | |
2287 | echo '<br><a href="?">Click to try again.</a></pre>'; | |
f37664a2 SS |
2288 | die; |
2289 | } | |
2290 | if (!isset($_SESSION['session_tested'])) | |
2291 | { // Step 1 : Try to store data in session and reload page. | |
2292 | $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. | |
482d67bd | 2293 | header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data. |
f37664a2 SS |
2294 | } |
2295 | if (isset($_GET['test_session'])) | |
ad6c27b7 | 2296 | { // Step 3: Sessions are OK. Remove test parameter from URL. |
482d67bd | 2297 | header('Location: '.index_url($_SERVER)); |
f37664a2 SS |
2298 | } |
2299 | ||
2300 | ||
45034273 SS |
2301 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) |
2302 | { | |
2303 | $tz = 'UTC'; | |
d1e2f8e5 V |
2304 | if (!empty($_POST['continent']) && !empty($_POST['city'])) { |
2305 | if (isTimeZoneValid($_POST['continent'], $_POST['city'])) { | |
45034273 | 2306 | $tz = $_POST['continent'].'/'.$_POST['city']; |
d1e2f8e5 V |
2307 | } |
2308 | } | |
45034273 SS |
2309 | $GLOBALS['timezone'] = $tz; |
2310 | // Everything is ok, let's create config file. | |
2311 | $GLOBALS['login'] = $_POST['setlogin']; | |
2312 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
2313 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
482d67bd | 2314 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] ); |
329e0768 | 2315 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
dd484b90 A |
2316 | try { |
2317 | writeConfig($GLOBALS, isLoggedIn()); | |
2318 | } | |
2319 | catch(Exception $e) { | |
2320 | error_log( | |
2321 | 'ERROR while writing config file after installation.' . PHP_EOL . | |
2322 | $e->getMessage() | |
2323 | ); | |
2324 | ||
2325 | // TODO: do not handle exceptions/errors in JS. | |
2326 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>'; | |
2327 | exit; | |
2328 | } | |
fe16b01e | 2329 | echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>'; |
45034273 SS |
2330 | exit; |
2331 | } | |
2332 | ||
2333 | // Display config form: | |
d1e2f8e5 V |
2334 | list($timezone_form, $timezone_js) = generateTimeZoneForm(); |
2335 | $timezone_html = ''; | |
2336 | if ($timezone_form != '') { | |
2337 | $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
2338 | } | |
bb8f712d | 2339 | |
45034273 SS |
2340 | $PAGE = new pageBuilder; |
2341 | $PAGE->assign('timezone_html',$timezone_html); | |
2342 | $PAGE->assign('timezone_js',$timezone_js); | |
2343 | $PAGE->renderPage('install'); | |
2344 | exit; | |
2345 | } | |
2346 | ||
ad6c27b7 | 2347 | /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL, |
45034273 | 2348 | I have deported the thumbnail URL code generation here, otherwise this would slow down page generation. |
ad6c27b7 | 2349 | The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail. |
2350 | This function is called by passing the URL: | |
45034273 | 2351 | http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL] |
ad6c27b7 | 2352 | [URL] is the URL of the link (e.g. a flickr page) |
45034273 SS |
2353 | [HMAC] is the signature for the [URL] (so that these URL cannot be forged). |
2354 | The function below will fetch the image from the webservice and store it in the cache. | |
2355 | */ | |
2356 | function genThumbnail() | |
2357 | { | |
2358 | // Make sure the parameters in the URL were generated by us. | |
2359 | $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); | |
ad6c27b7 | 2360 | if ($sign!=$_GET['hmac']) die('Naughty boy!'); |
45034273 SS |
2361 | |
2362 | // Let's see if we don't already have the image for this URL in the cache. | |
2363 | $thumbname=hash('sha1',$_GET['url']).'.jpg'; | |
2364 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) | |
2365 | { // We have the thumbnail, just serve it: | |
2366 | header('Content-Type: image/jpeg'); | |
2367 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); | |
2368 | return; | |
2369 | } | |
2370 | // We may also serve a blank image (if service did not respond) | |
2371 | $blankname=hash('sha1',$_GET['url']).'.gif'; | |
2372 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) | |
2373 | { | |
2374 | header('Content-Type: image/gif'); | |
2375 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); | |
2376 | return; | |
2377 | } | |
2378 | ||
2379 | // Otherwise, generate the thumbnail. | |
2380 | $url = $_GET['url']; | |
2381 | $domain = parse_url($url,PHP_URL_HOST); | |
2382 | ||
2383 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) | |
2384 | { | |
ad6c27b7 | 2385 | // Crude replacement to handle new flickr domain policy (They prefer www. now) |
45034273 SS |
2386 | $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url); |
2387 | ||
2388 | // Is this a link to an image, or to a flickr page ? | |
2389 | $imageurl=''; | |
2390 | if (endswith(parse_url($url,PHP_URL_PATH),'.jpg')) | |
ad6c27b7 | 2391 | { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg |
45034273 SS |
2392 | preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches); |
2393 | if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg'; | |
2394 | } | |
ad6c27b7 | 2395 | else // This is a flickr page (html) |
45034273 | 2396 | { |
451314eb | 2397 | // Get the flickr html page. |
1557cefb | 2398 | list($headers, $content) = get_http_response($url, 20); |
451314eb | 2399 | if (strpos($headers[0], '200 OK') !== false) |
45034273 | 2400 | { |
ad6c27b7 | 2401 | // flickr now nicely provides the URL of the thumbnail in each flickr page. |
1557cefb | 2402 | preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches); |
45034273 SS |
2403 | if (!empty($matches[1])) $imageurl=$matches[1]; |
2404 | ||
2405 | // In albums (and some other pages), the link rel="image_src" is not provided, | |
2406 | // but flickr provides: | |
2407 | // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" /> | |
2408 | if ($imageurl=='') | |
2409 | { | |
1557cefb | 2410 | preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches); |
45034273 SS |
2411 | if (!empty($matches[1])) $imageurl=$matches[1]; |
2412 | } | |
2413 | } | |
2414 | } | |
2415 | ||
2416 | if ($imageurl!='') | |
2417 | { // Let's download the image. | |
451314eb | 2418 | // Image is 240x120, so 10 seconds to download should be enough. |
1557cefb | 2419 | list($headers, $content) = get_http_response($imageurl, 10); |
451314eb | 2420 | if (strpos($headers[0], '200 OK') !== false) { |
1557cefb A |
2421 | // Save image to cache. |
2422 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/' . $thumbname, $content); | |
45034273 | 2423 | header('Content-Type: image/jpeg'); |
1557cefb | 2424 | echo $content; |
45034273 SS |
2425 | return; |
2426 | } | |
2427 | } | |
2428 | } | |
2429 | ||
2430 | elseif ($domain=='vimeo.com' ) | |
2431 | { | |
2432 | // This is more complex: we have to perform a HTTP request, then parse the result. | |
ad6c27b7 | 2433 | // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098 |
45034273 | 2434 | $vid = substr(parse_url($url,PHP_URL_PATH),1); |
1557cefb | 2435 | list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5); |
451314eb | 2436 | if (strpos($headers[0], '200 OK') !== false) { |
1557cefb | 2437 | $t = unserialize($content); |
45034273 SS |
2438 | $imageurl = $t[0]['thumbnail_medium']; |
2439 | // Then we download the image and serve it to our client. | |
1557cefb | 2440 | list($headers, $content) = get_http_response($imageurl, 10); |
451314eb | 2441 | if (strpos($headers[0], '200 OK') !== false) { |
1557cefb A |
2442 | // Save image to cache. |
2443 | file_put_contents($GLOBALS['config']['CACHEDIR'] . '/' . $thumbname, $content); | |
45034273 | 2444 | header('Content-Type: image/jpeg'); |
1557cefb | 2445 | echo $content; |
45034273 SS |
2446 | return; |
2447 | } | |
2448 | } | |
2449 | } | |
2450 | ||
2451 | elseif ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
2452 | { | |
2453 | // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page | |
2454 | // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html | |
2455 | // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" /> | |
1557cefb | 2456 | list($headers, $content) = get_http_response($url, 5); |
451314eb | 2457 | if (strpos($headers[0], '200 OK') !== false) { |
45034273 | 2458 | // Extract the link to the thumbnail |
1557cefb | 2459 | preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches); |
45034273 SS |
2460 | if (!empty($matches[1])) |
2461 | { // Let's download the image. | |
2462 | $imageurl=$matches[1]; | |
451314eb | 2463 | // No control on image size, so wait long enough |
1557cefb | 2464 | list($headers, $content) = get_http_response($imageurl, 20); |
451314eb | 2465 | if (strpos($headers[0], '200 OK') !== false) { |
45034273 | 2466 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; |
1557cefb | 2467 | file_put_contents($filepath, $content); // Save image to cache. |
45034273 SS |
2468 | if (resizeImage($filepath)) |
2469 | { | |
2470 | header('Content-Type: image/jpeg'); | |
2471 | echo file_get_contents($filepath); | |
2472 | return; | |
2473 | } | |
2474 | } | |
2475 | } | |
2476 | } | |
2477 | } | |
bb8f712d | 2478 | |
45034273 SS |
2479 | elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) |
2480 | { | |
2481 | // There is no thumbnail available for xkcd comics, so download the whole image and resize it. | |
2482 | // http://xkcd.com/327/ | |
2483 | // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" /> | |
1557cefb | 2484 | list($headers, $content) = get_http_response($url, 5); |
451314eb | 2485 | if (strpos($headers[0], '200 OK') !== false) { |
45034273 | 2486 | // Extract the link to the thumbnail |
1557cefb | 2487 | preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches); |
45034273 SS |
2488 | if (!empty($matches[1])) |
2489 | { // Let's download the image. | |
2490 | $imageurl=$matches[1]; | |
451314eb | 2491 | // No control on image size, so wait long enough |
1557cefb | 2492 | list($headers, $content) = get_http_response($imageurl, 20); |
451314eb | 2493 | if (strpos($headers[0], '200 OK') !== false) { |
45034273 | 2494 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; |
1557cefb A |
2495 | // Save image to cache. |
2496 | file_put_contents($filepath, $content); | |
45034273 SS |
2497 | if (resizeImage($filepath)) |
2498 | { | |
2499 | header('Content-Type: image/jpeg'); | |
2500 | echo file_get_contents($filepath); | |
2501 | return; | |
2502 | } | |
2503 | } | |
2504 | } | |
2505 | } | |
bb8f712d | 2506 | } |
45034273 SS |
2507 | |
2508 | else | |
2509 | { | |
2510 | // For all other domains, we try to download the image and make a thumbnail. | |
451314eb | 2511 | // We allow 30 seconds max to download (and downloads are limited to 4 Mb) |
1557cefb | 2512 | list($headers, $content) = get_http_response($url, 30); |
451314eb | 2513 | if (strpos($headers[0], '200 OK') !== false) { |
45034273 | 2514 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; |
1557cefb A |
2515 | // Save image to cache. |
2516 | file_put_contents($filepath, $content); | |
45034273 SS |
2517 | if (resizeImage($filepath)) |
2518 | { | |
2519 | header('Content-Type: image/jpeg'); | |
2520 | echo file_get_contents($filepath); | |
2521 | return; | |
2522 | } | |
2523 | } | |
2524 | } | |
2525 | ||
2526 | ||
2527 | // Otherwise, return an empty image (8x8 transparent gif) | |
2528 | $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7'); | |
2529 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice. | |
2530 | header('Content-Type: image/gif'); | |
2531 | echo $blankgif; | |
2532 | } | |
2533 | ||
2534 | // Make a thumbnail of the image (to width: 120 pixels) | |
2535 | // Returns true if success, false otherwise. | |
2536 | function resizeImage($filepath) | |
2537 | { | |
2538 | if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible. | |
2539 | ||
2540 | // Trick: some stupid people rename GIF as JPEG... or else. | |
2541 | // So we really try to open each image type whatever the extension is. | |
2542 | $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type. | |
2543 | $im=false; | |
2544 | $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough. | |
2545 | $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath); | |
2546 | $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath); | |
2547 | if (!$im) return false; // Unable to open image (corrupted or not an image) | |
2548 | $w = imagesx($im); | |
2549 | $h = imagesy($im); | |
2550 | $ystart = 0; $yheight=$h; | |
2551 | if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; } | |
2552 | $nw = 120; // Desired width | |
2553 | $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height. | |
2554 | // Resize image: | |
2555 | $im2 = imagecreatetruecolor($nw,$nh); | |
2556 | imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight); | |
2557 | imageinterlace($im2,true); // For progressive JPEG. | |
2558 | $tempname=$filepath.'_TEMP.jpg'; | |
2559 | imagejpeg($im2, $tempname, 90); | |
2560 | imagedestroy($im); | |
2561 | imagedestroy($im2); | |
9e820906 | 2562 | unlink($filepath); |
45034273 SS |
2563 | rename($tempname,$filepath); // Overwrite original picture with thumbnail. |
2564 | return true; | |
2565 | } | |
2566 | ||
45034273 SS |
2567 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database. |
2568 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
2569 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; } | |
2570 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; } | |
45034273 SS |
2571 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE']; |
2572 | renderPage(); | |
03545ef6 | 2573 | ?> |