]>
Commit | Line | Data |
---|---|---|
1 | <?php | |
2 | /** | |
3 | * Shaarli v0.5.4 - Shaare your links... | |
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 | */ | |
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 | } | |
24 | ||
25 | // ----------------------------------------------------------------------------------------------- | |
26 | // Hardcoded parameter (These parameters can be overwritten by editing the file /data/config.php) | |
27 | // You should not touch any code below (or at your own risks!) | |
28 | $GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory | |
29 | $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password) | |
30 | $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file. | |
31 | $GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page. | |
32 | $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans. | |
33 | $GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures. | |
34 | $GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes) | |
35 | $GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login | |
36 | $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in. | |
37 | $GLOBALS['config']['SHOW_ATOM'] = false; // If true, an extra "ATOM feed" button will be displayed in the toolbar | |
38 | $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links. | |
39 | $GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr) | |
40 | $GLOBALS['config']['PAGECACHE'] = 'pagecache'; // Page cache directory. | |
41 | $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage. | |
42 | $GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable. | |
43 | $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!) | |
44 | $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!) | |
45 | $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli. | |
46 | $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours | |
47 | // Note: You must have publisher.php in the same directory as Shaarli index.php | |
48 | $GLOBALS['config']['ARCHIVE_ORG'] = false; // For each link, add a link to an archived version on archive.org | |
49 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = true; // Enable RSS permalinks by default. This corresponds to the default behavior of shaarli before this was added as an option. | |
50 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false; | |
51 | // ----------------------------------------------------------------------------------------------- | |
52 | define('shaarli_version', '0.5.4'); | |
53 | // http://server.com/x/shaarli --> /shaarli/ | |
54 | define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); | |
55 | ||
56 | // PHP Settings | |
57 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. | |
58 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
59 | ini_set('post_max_size', '16M'); | |
60 | ini_set('upload_max_filesize', '16M'); | |
61 | error_reporting(E_ALL^E_WARNING); // See all error except warnings. | |
62 | //error_reporting(-1); // See all errors (for debugging only) | |
63 | ||
64 | // User configuration | |
65 | if (is_file($GLOBALS['config']['CONFIG_FILE'])) { | |
66 | require_once $GLOBALS['config']['CONFIG_FILE']; | |
67 | } | |
68 | ||
69 | // Shaarli library | |
70 | require_once 'application/Cache.php'; | |
71 | require_once 'application/CachedPage.php'; | |
72 | require_once 'application/HttpUtils.php'; | |
73 | require_once 'application/LinkDB.php'; | |
74 | require_once 'application/TimeZone.php'; | |
75 | require_once 'application/Url.php'; | |
76 | require_once 'application/Utils.php'; | |
77 | require_once 'application/Config.php'; | |
78 | ||
79 | // Ensure the PHP version is supported | |
80 | try { | |
81 | checkPHPVersion('5.3', PHP_VERSION); | |
82 | } catch(Exception $e) { | |
83 | header('Content-Type: text/plain; charset=utf-8'); | |
84 | echo $e->getMessage(); | |
85 | exit; | |
86 | } | |
87 | ||
88 | // Force cookie path (but do not change lifetime) | |
89 | $cookie = session_get_cookie_params(); | |
90 | $cookiedir = ''; | |
91 | if (dirname($_SERVER['SCRIPT_NAME']) != '/') { | |
92 | $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
93 | } | |
94 | // Set default cookie expiration and path. | |
95 | session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']); | |
96 | // Set session parameters on server side. | |
97 | // If the user does not access any page within this time, his/her session is considered expired. | |
98 | define('INACTIVITY_TIMEOUT', 3600); // in seconds. | |
99 | // Use cookies to store session. | |
100 | ini_set('session.use_cookies', 1); | |
101 | // Force cookies for session (phpsessionID forbidden in URL). | |
102 | ini_set('session.use_only_cookies', 1); | |
103 | // Prevent PHP form using sessionID in URL if cookies are disabled. | |
104 | ini_set('session.use_trans_sid', false); | |
105 | ||
106 | session_name('shaarli'); | |
107 | // Start session if needed (Some server auto-start sessions). | |
108 | if (session_id() == '') { | |
109 | session_start(); | |
110 | } | |
111 | ||
112 | // Regenerate session ID if invalid or not defined in cookie. | |
113 | if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) { | |
114 | session_regenerate_id(true); | |
115 | $_COOKIE['shaarli'] = session_id(); | |
116 | } | |
117 | ||
118 | include "inc/rain.tpl.class.php"; //include Rain TPL | |
119 | raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory | |
120 | raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory | |
121 | ||
122 | ob_start(); // Output buffering for the page cache. | |
123 | ||
124 | ||
125 | // In case stupid admin has left magic_quotes enabled in php.ini: | |
126 | if (get_magic_quotes_gpc()) | |
127 | { | |
128 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
129 | $_POST = array_map('stripslashes_deep', $_POST); | |
130 | $_GET = array_map('stripslashes_deep', $_GET); | |
131 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
132 | } | |
133 | ||
134 | // Prevent caching on client side or proxy: (yes, it's ugly) | |
135 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
136 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
137 | header("Cache-Control: post-check=0, pre-check=0", false); | |
138 | header("Pragma: no-cache"); | |
139 | ||
140 | // Directories creations (Note that your web host may require different rights than 705.) | |
141 | if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>'); | |
142 | ||
143 | // Handling of old config file which do not have the new parameters. | |
144 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER)); | |
145 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); | |
146 | if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; | |
147 | if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; | |
148 | if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; | |
149 | if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; | |
150 | // I really need to rewrite Shaarli with a proper configuation manager. | |
151 | ||
152 | // Run config screen if first run: | |
153 | if (! is_file($GLOBALS['config']['CONFIG_FILE'])) { | |
154 | install(); | |
155 | } | |
156 | ||
157 | $GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : ''; | |
158 | $GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : ''; | |
159 | $GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : ''; | |
160 | ||
161 | // a token depending of deployment salt, user password, and the current ip | |
162 | define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); | |
163 | ||
164 | autoLocale(); // Sniff browser language and set date format accordingly. | |
165 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
166 | ||
167 | //================================================================================================== | |
168 | // Checking session state (i.e. is the user still logged in) | |
169 | //================================================================================================== | |
170 | ||
171 | function setup_login_state() { | |
172 | $userIsLoggedIn = false; // By default, we do not consider the user as logged in; | |
173 | $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. | |
174 | if ($GLOBALS['config']['OPEN_SHAARLI']) { | |
175 | $userIsLoggedIn = true; | |
176 | } | |
177 | if (!isset($GLOBALS['login'])) { | |
178 | $userIsLoggedIn = false; // Shaarli is not configured yet. | |
179 | $loginFailure = true; | |
180 | } | |
181 | if (isset($_COOKIE['shaarli_staySignedIn']) && | |
182 | $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && | |
183 | !$loginFailure) | |
184 | { | |
185 | fillSessionInfo(); | |
186 | $userIsLoggedIn = true; | |
187 | } | |
188 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
189 | if (empty($_SESSION['uid']) || | |
190 | ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || | |
191 | time() >= $_SESSION['expires_on']) | |
192 | { | |
193 | logout(); | |
194 | $userIsLoggedIn = false; | |
195 | $loginFailure = true; | |
196 | } | |
197 | if (!empty($_SESSION['longlastingsession'])) { | |
198 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked. | |
199 | } | |
200 | else { | |
201 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date. | |
202 | } | |
203 | if (!$loginFailure) { | |
204 | $userIsLoggedIn = true; | |
205 | } | |
206 | ||
207 | return $userIsLoggedIn; | |
208 | } | |
209 | $userIsLoggedIn = setup_login_state(); | |
210 | ||
211 | // Checks if an update is available for Shaarli. | |
212 | // (at most once a day, and only for registered user.) | |
213 | // Output: '' = no new version. | |
214 | // other= the available version. | |
215 | function checkUpdate() | |
216 | { | |
217 | if (!isLoggedIn()) return ''; // Do not check versions for visitors. | |
218 | if (empty($GLOBALS['config']['ENABLE_UPDATECHECK'])) return ''; // Do not check if the user doesn't want to. | |
219 | ||
220 | // Get latest version number at most once a day. | |
221 | if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL']))) | |
222 | { | |
223 | $version = shaarli_version; | |
224 | list($headers, $data) = get_http_url('https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php', 2); | |
225 | if (strpos($headers[0], '200 OK') !== false) { | |
226 | $version = str_replace(' */ ?>', '', str_replace('<?php /* ', '', $data)); | |
227 | } | |
228 | // If failed, never mind. We don't want to bother the user with that. | |
229 | file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date | |
230 | } | |
231 | // Compare versions: | |
232 | $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']); | |
233 | if (version_compare($newestversion,shaarli_version)==1) return $newestversion; | |
234 | return ''; | |
235 | } | |
236 | ||
237 | ||
238 | // ----------------------------------------------------------------------------------------------- | |
239 | // Log to text file | |
240 | function logm($message) | |
241 | { | |
242 | $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; | |
243 | file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND); | |
244 | } | |
245 | ||
246 | // In a string, converts URLs to clickable links. | |
247 | // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 | |
248 | function text2clickable($url) | |
249 | { | |
250 | $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; | |
251 | return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url); | |
252 | } | |
253 | ||
254 | // This function inserts where relevant so that multiple spaces are properly displayed in HTML | |
255 | // even in the absence of <pre> (This is used in description to keep text formatting) | |
256 | function keepMultipleSpaces($text) | |
257 | { | |
258 | return str_replace(' ',' ',$text); | |
259 | ||
260 | } | |
261 | // ------------------------------------------------------------------------------------------ | |
262 | // Sniff browser language to display dates in the right format automatically. | |
263 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
264 | function autoLocale() | |
265 | { | |
266 | $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE | |
267 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" | |
268 | { // (It's a bit crude, but it works very well. Preferred language is always presented first.) | |
269 | if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) { | |
270 | $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : ''); | |
271 | $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc), | |
272 | $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc), | |
273 | $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8', | |
274 | $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc); | |
275 | } | |
276 | } | |
277 | setlocale(LC_TIME, $attempts); // LC_TIME = Set local for date/time format only. | |
278 | } | |
279 | ||
280 | // ------------------------------------------------------------------------------------------ | |
281 | // PubSubHubbub protocol support (if enabled) [UNTESTED] | |
282 | // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ ) | |
283 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php'; | |
284 | function pubsubhub() | |
285 | { | |
286 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
287 | { | |
288 | $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']); | |
289 | $topic_url = array ( | |
290 | index_url($_SERVER).'?do=atom', | |
291 | index_url($_SERVER).'?do=rss' | |
292 | ); | |
293 | $p->publish_update($topic_url); | |
294 | } | |
295 | } | |
296 | ||
297 | // ------------------------------------------------------------------------------------------ | |
298 | // Session management | |
299 | ||
300 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
301 | function allIPs() | |
302 | { | |
303 | $ip = $_SERVER["REMOTE_ADDR"]; | |
304 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
305 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
306 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
307 | return $ip; | |
308 | } | |
309 | ||
310 | function fillSessionInfo() { | |
311 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid) | |
312 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. | |
313 | $_SESSION['username']=$GLOBALS['login']; | |
314 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
315 | } | |
316 | ||
317 | // Check that user/password is correct. | |
318 | function check_auth($login,$password) | |
319 | { | |
320 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
321 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
322 | { // Login/password is correct. | |
323 | fillSessionInfo(); | |
324 | logm('Login successful'); | |
325 | return True; | |
326 | } | |
327 | logm('Login failed for user '.$login); | |
328 | return False; | |
329 | } | |
330 | ||
331 | // Returns true if the user is logged in. | |
332 | function isLoggedIn() | |
333 | { | |
334 | global $userIsLoggedIn; | |
335 | return $userIsLoggedIn; | |
336 | } | |
337 | ||
338 | // Force logout. | |
339 | function logout() { | |
340 | if (isset($_SESSION)) { | |
341 | unset($_SESSION['uid']); | |
342 | unset($_SESSION['ip']); | |
343 | unset($_SESSION['username']); | |
344 | unset($_SESSION['privateonly']); | |
345 | } | |
346 | setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH); | |
347 | } | |
348 | ||
349 | ||
350 | // ------------------------------------------------------------------------------------------ | |
351 | // Brute force protection system | |
352 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
353 | 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?>"); | |
354 | include $GLOBALS['config']['IPBANS_FILENAME']; | |
355 | // Signal a failed login. Will ban the IP if too many failures: | |
356 | function ban_loginFailed() | |
357 | { | |
358 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
359 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
360 | $gb['FAILURES'][$ip]++; | |
361 | if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1)) | |
362 | { | |
363 | $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION']; | |
364 | logm('IP address banned from login'); | |
365 | } | |
366 | $GLOBALS['IPBANS'] = $gb; | |
367 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
368 | } | |
369 | ||
370 | // Signals a successful login. Resets failed login counter. | |
371 | function ban_loginOk() | |
372 | { | |
373 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
374 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
375 | $GLOBALS['IPBANS'] = $gb; | |
376 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
377 | } | |
378 | ||
379 | // Checks if the user CAN login. If 'true', the user can try to login. | |
380 | function ban_canLogin() | |
381 | { | |
382 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
383 | if (isset($gb['BANS'][$ip])) | |
384 | { | |
385 | // User is banned. Check if the ban has expired: | |
386 | if ($gb['BANS'][$ip]<=time()) | |
387 | { // Ban expired, user can try to login again. | |
388 | logm('Ban lifted.'); | |
389 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
390 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
391 | return true; // Ban has expired, user can login. | |
392 | } | |
393 | return false; // User is banned. | |
394 | } | |
395 | return true; // User is not banned. | |
396 | } | |
397 | ||
398 | // ------------------------------------------------------------------------------------------ | |
399 | // Process login form: Check if login/password is correct. | |
400 | if (isset($_POST['login'])) | |
401 | { | |
402 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
403 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
404 | { // Login/password is OK. | |
405 | ban_loginOk(); | |
406 | // If user wants to keep the session cookie even after the browser closes: | |
407 | if (!empty($_POST['longlastingsession'])) | |
408 | { | |
409 | setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH); | |
410 | $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year) | |
411 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side. | |
412 | ||
413 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
414 | session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side | |
415 | // Note: Never forget the trailing slash on the cookie path! | |
416 | session_regenerate_id(true); // Send cookie with new expiration date to browser. | |
417 | } | |
418 | else // Standard session expiration (=when browser closes) | |
419 | { | |
420 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
421 | session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes" | |
422 | session_regenerate_id(true); | |
423 | } | |
424 | ||
425 | // Optional redirect after login: | |
426 | if (isset($_GET['post'])) { | |
427 | $uri = '?post='. urlencode($_GET['post']); | |
428 | foreach (array('description', 'source', 'title') as $param) { | |
429 | if (!empty($_GET[$param])) { | |
430 | $uri .= '&'.$param.'='.urlencode($_GET[$param]); | |
431 | } | |
432 | } | |
433 | header('Location: '. $uri); | |
434 | exit; | |
435 | } | |
436 | ||
437 | if (isset($_GET['edit_link'])) { | |
438 | header('Location: ?edit_link='. escape($_GET['edit_link'])); | |
439 | exit; | |
440 | } | |
441 | ||
442 | if (isset($_POST['returnurl'])) { | |
443 | // Prevent loops over login screen. | |
444 | if (strpos($_POST['returnurl'], 'do=login') === false) { | |
445 | header('Location: '. escape($_POST['returnurl'])); | |
446 | exit; | |
447 | } | |
448 | } | |
449 | header('Location: ?'); exit; | |
450 | } | |
451 | else | |
452 | { | |
453 | ban_loginFailed(); | |
454 | $redir = ''; | |
455 | if (isset($_GET['post'])) { | |
456 | $redir = '?post=' . urlencode($_GET['post']); | |
457 | foreach (array('description', 'source', 'title') as $param) { | |
458 | if (!empty($_GET[$param])) { | |
459 | $redir .= '&' . $param . '=' . urlencode($_GET[$param]); | |
460 | } | |
461 | } | |
462 | } | |
463 | echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen. | |
464 | exit; | |
465 | } | |
466 | } | |
467 | ||
468 | // ------------------------------------------------------------------------------------------ | |
469 | // Misc utility functions: | |
470 | ||
471 | // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes. | |
472 | function return_bytes($val) | |
473 | { | |
474 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
475 | switch($last) | |
476 | { | |
477 | case 'g': $val *= 1024; | |
478 | case 'm': $val *= 1024; | |
479 | case 'k': $val *= 1024; | |
480 | } | |
481 | return $val; | |
482 | } | |
483 | ||
484 | // Try to determine max file size for uploads (POST). | |
485 | // Returns an integer (in bytes) | |
486 | function getMaxFileSize() | |
487 | { | |
488 | $size1 = return_bytes(ini_get('post_max_size')); | |
489 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
490 | // Return the smaller of two: | |
491 | $maxsize = min($size1,$size2); | |
492 | // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000) | |
493 | return $maxsize; | |
494 | } | |
495 | ||
496 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) | |
497 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
498 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
499 | function linkdate2timestamp($linkdate) | |
500 | { | |
501 | if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){ | |
502 | $Y=$M=$D=$h=$m=$s=0; | |
503 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
504 | return mktime($h,$m,$s,$M,$D,$Y); | |
505 | } | |
506 | return time(); | |
507 | } | |
508 | ||
509 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
510 | (used to build the pubDate attribute in RSS feed.) */ | |
511 | function linkdate2rfc822($linkdate) | |
512 | { | |
513 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
514 | } | |
515 | ||
516 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date. | |
517 | (used to build the updated tags in ATOM feed.) */ | |
518 | function linkdate2iso8601($linkdate) | |
519 | { | |
520 | return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format. | |
521 | } | |
522 | ||
523 | // Extract title from an HTML document. | |
524 | // (Returns an empty string if not found.) | |
525 | function html_extract_title($html) | |
526 | { | |
527 | return preg_match('!<title>(.*?)</title>!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ; | |
528 | } | |
529 | ||
530 | // ------------------------------------------------------------------------------------------ | |
531 | // Token management for XSRF protection | |
532 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
533 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
534 | ||
535 | // Returns a token. | |
536 | function getToken() | |
537 | { | |
538 | $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string. | |
539 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. | |
540 | return $rnd; | |
541 | } | |
542 | ||
543 | // Tells if a token is OK. Using this function will destroy the token. | |
544 | // true=token is OK. | |
545 | function tokenOk($token) | |
546 | { | |
547 | if (isset($_SESSION['tokens'][$token])) | |
548 | { | |
549 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
550 | return true; // Token is OK. | |
551 | } | |
552 | return false; // Wrong token, or already used. | |
553 | } | |
554 | ||
555 | // ------------------------------------------------------------------------------------------ | |
556 | /* This class is in charge of building the final page. | |
557 | (This is basically a wrapper around RainTPL which pre-fills some fields.) | |
558 | p = new pageBuilder; | |
559 | p.assign('myfield','myvalue'); | |
560 | p.renderPage('mytemplate'); | |
561 | ||
562 | */ | |
563 | class pageBuilder | |
564 | { | |
565 | private $tpl; // RainTPL template | |
566 | ||
567 | function __construct() | |
568 | { | |
569 | $this->tpl=false; | |
570 | } | |
571 | ||
572 | private function initialize() | |
573 | { | |
574 | $this->tpl = new RainTPL; | |
575 | $this->tpl->assign('newversion',escape(checkUpdate())); | |
576 | $this->tpl->assign('feedurl',escape(index_url($_SERVER))); | |
577 | $searchcrits=''; // Search criteria | |
578 | if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']); | |
579 | elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']); | |
580 | $this->tpl->assign('searchcrits',$searchcrits); | |
581 | $this->tpl->assign('source',index_url($_SERVER)); | |
582 | $this->tpl->assign('version',shaarli_version); | |
583 | $this->tpl->assign('scripturl',index_url($_SERVER)); | |
584 | $this->tpl->assign('pagetitle','Shaarli'); | |
585 | $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links? | |
586 | if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']); | |
587 | if (!empty($GLOBALS['titleLink'])) $this->tpl->assign('titleLink',$GLOBALS['titleLink']); | |
588 | if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']); | |
589 | $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] ); | |
590 | return; | |
591 | } | |
592 | ||
593 | // The following assign() method is basically the same as RainTPL (except that it's lazy) | |
594 | public function assign($what,$where) | |
595 | { | |
596 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
597 | $this->tpl->assign($what,$where); | |
598 | } | |
599 | ||
600 | // Render a specific page (using a template). | |
601 | // e.g. pb.renderPage('picwall') | |
602 | public function renderPage($page) | |
603 | { | |
604 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
605 | $this->tpl->draw($page); | |
606 | } | |
607 | } | |
608 | ||
609 | // ------------------------------------------------------------------------------------------ | |
610 | // Output the last N links in RSS 2.0 format. | |
611 | function showRSS() | |
612 | { | |
613 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
614 | ||
615 | // $usepermalink : If true, use permalink instead of final link. | |
616 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks | |
617 | // Also enabled through a config option | |
618 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
619 | ||
620 | // Cache system | |
621 | $query = $_SERVER["QUERY_STRING"]; | |
622 | $cache = new CachedPage( | |
623 | $GLOBALS['config']['PAGECACHE'], | |
624 | page_url($_SERVER), | |
625 | startsWith($query,'do=rss') && !isLoggedIn() | |
626 | ); | |
627 | $cached = $cache->cachedVersion(); | |
628 | if (! empty($cached)) { | |
629 | echo $cached; | |
630 | exit; | |
631 | } | |
632 | ||
633 | // If cached was not found (or not usable), then read the database and build the response: | |
634 | $LINKSDB = new LinkDB( | |
635 | $GLOBALS['config']['DATASTORE'], | |
636 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
637 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
638 | ); | |
639 | // Read links from database (and filter private links if user it not logged in). | |
640 | ||
641 | // Optionally filter the results: | |
642 | $linksToDisplay=array(); | |
643 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
644 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
645 | else $linksToDisplay = $LINKSDB; | |
646 | ||
647 | $nblinksToDisplay = 50; // Number of links to display. | |
648 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
649 | { | |
650 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; | |
651 | } | |
652 | ||
653 | $pageaddr=escape(index_url($_SERVER)); | |
654 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; | |
655 | echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>'; | |
656 | echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n"; | |
657 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
658 | { | |
659 | echo '<!-- PubSubHubbub Discovery -->'; | |
660 | echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />'; | |
661 | echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />'; | |
662 | echo '<!-- End Of PubSubHubbub Discovery -->'; | |
663 | } | |
664 | $i=0; | |
665 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
666 | while ($i<$nblinksToDisplay && $i<count($keys)) | |
667 | { | |
668 | $link = $linksToDisplay[$keys[$i]]; | |
669 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
670 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
671 | $absurl = $link['url']; | |
672 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute | |
673 | if ($usepermalinks===true) | |
674 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>'; | |
675 | else | |
676 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>'; | |
677 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.escape($rfc822date)."</pubDate>\n"; | |
678 | if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification) | |
679 | { | |
680 | foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; } | |
681 | } | |
682 | ||
683 | // Add permalink in description | |
684 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
685 | // If user wants permalinks first, put the final link in description | |
686 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
687 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
688 | echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink.']]></description>'."\n</item>\n"; | |
689 | $i++; | |
690 | } | |
691 | echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->'; | |
692 | ||
693 | $cache->cache(ob_get_contents()); | |
694 | ob_end_flush(); | |
695 | exit; | |
696 | } | |
697 | ||
698 | // ------------------------------------------------------------------------------------------ | |
699 | // Output the last N links in ATOM format. | |
700 | function showATOM() | |
701 | { | |
702 | header('Content-Type: application/atom+xml; charset=utf-8'); | |
703 | ||
704 | // $usepermalink : If true, use permalink instead of final link. | |
705 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks | |
706 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
707 | ||
708 | // Cache system | |
709 | $query = $_SERVER["QUERY_STRING"]; | |
710 | $cache = new CachedPage( | |
711 | $GLOBALS['config']['PAGECACHE'], | |
712 | page_url($_SERVER), | |
713 | startsWith($query,'do=atom') && !isLoggedIn() | |
714 | ); | |
715 | $cached = $cache->cachedVersion(); | |
716 | if (!empty($cached)) { | |
717 | echo $cached; | |
718 | exit; | |
719 | } | |
720 | ||
721 | // If cached was not found (or not usable), then read the database and build the response: | |
722 | // Read links from database (and filter private links if used it not logged in). | |
723 | $LINKSDB = new LinkDB( | |
724 | $GLOBALS['config']['DATASTORE'], | |
725 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
726 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
727 | ); | |
728 | ||
729 | // Optionally filter the results: | |
730 | $linksToDisplay=array(); | |
731 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
732 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
733 | else $linksToDisplay = $LINKSDB; | |
734 | ||
735 | $nblinksToDisplay = 50; // Number of links to display. | |
736 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
737 | { | |
738 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; | |
739 | } | |
740 | ||
741 | $pageaddr=escape(index_url($_SERVER)); | |
742 | $latestDate = ''; | |
743 | $entries=''; | |
744 | $i=0; | |
745 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
746 | while ($i<$nblinksToDisplay && $i<count($keys)) | |
747 | { | |
748 | $link = $linksToDisplay[$keys[$i]]; | |
749 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
750 | $iso8601date = linkdate2iso8601($link['linkdate']); | |
751 | $latestDate = max($latestDate,$iso8601date); | |
752 | $absurl = $link['url']; | |
753 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute | |
754 | $entries.='<entry><title>'.$link['title'].'</title>'; | |
755 | if ($usepermalinks===true) | |
756 | $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>'; | |
757 | else | |
758 | $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>'; | |
759 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.escape($iso8601date).'</updated>'; | |
760 | ||
761 | // Add permalink in description | |
762 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
763 | // If user wants permalinks first, put the final link in description | |
764 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
765 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
766 | ||
767 | $entries.='<content type="html"><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink."]]></content>\n"; | |
768 | if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) | |
769 | { | |
770 | foreach(explode(' ',$link['tags']) as $tag) | |
771 | { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; } | |
772 | } | |
773 | $entries.="</entry>\n"; | |
774 | $i++; | |
775 | } | |
776 | $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">'; | |
777 | $feed.='<title>'.$GLOBALS['title'].'</title>'; | |
778 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>'; | |
779 | $feed.='<link rel="self" href="'.escape(server_url($_SERVER).$_SERVER["REQUEST_URI"]).'" />'; | |
780 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
781 | { | |
782 | $feed.='<!-- PubSubHubbub Discovery -->'; | |
783 | $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />'; | |
784 | $feed.='<!-- End Of PubSubHubbub Discovery -->'; | |
785 | } | |
786 | $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>'; | |
787 | $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. | |
788 | $feed.=$entries; | |
789 | $feed.='</feed><!-- Cached version of '.escape(page_url($_SERVER)).' -->'; | |
790 | echo $feed; | |
791 | ||
792 | $cache->cache(ob_get_contents()); | |
793 | ob_end_flush(); | |
794 | exit; | |
795 | } | |
796 | ||
797 | // ------------------------------------------------------------------------------------------ | |
798 | // Daily RSS feed: 1 RSS entry per day giving all the links on that day. | |
799 | // Gives the last 7 days (which have links). | |
800 | // This RSS feed cannot be filtered. | |
801 | function showDailyRSS() { | |
802 | // Cache system | |
803 | $query = $_SERVER["QUERY_STRING"]; | |
804 | $cache = new CachedPage( | |
805 | $GLOBALS['config']['PAGECACHE'], | |
806 | page_url($_SERVER), | |
807 | startsWith($query,'do=dailyrss') && !isLoggedIn() | |
808 | ); | |
809 | $cached = $cache->cachedVersion(); | |
810 | if (!empty($cached)) { | |
811 | echo $cached; | |
812 | exit; | |
813 | } | |
814 | ||
815 | // If cached was not found (or not usable), then read the database and build the response: | |
816 | // Read links from database (and filter private links if used it not logged in). | |
817 | $LINKSDB = new LinkDB( | |
818 | $GLOBALS['config']['DATASTORE'], | |
819 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
820 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
821 | ); | |
822 | ||
823 | /* Some Shaarlies may have very few links, so we need to look | |
824 | back in time (rsort()) until we have enough days ($nb_of_days). | |
825 | */ | |
826 | $linkdates = array(); | |
827 | foreach ($LINKSDB as $linkdate => $value) { | |
828 | $linkdates[] = $linkdate; | |
829 | } | |
830 | rsort($linkdates); | |
831 | $nb_of_days = 7; // We take 7 days. | |
832 | $today = Date('Ymd'); | |
833 | $days = array(); | |
834 | ||
835 | foreach ($linkdates as $linkdate) { | |
836 | $day = substr($linkdate, 0, 8); // Extract day (without time) | |
837 | if (strcmp($day,$today) < 0) { | |
838 | if (empty($days[$day])) { | |
839 | $days[$day] = array(); | |
840 | } | |
841 | $days[$day][] = $linkdate; | |
842 | } | |
843 | ||
844 | if (count($days) > $nb_of_days) { | |
845 | break; // Have we collected enough days? | |
846 | } | |
847 | } | |
848 | ||
849 | // Build the RSS feed. | |
850 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
851 | $pageaddr = escape(index_url($_SERVER)); | |
852 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">'; | |
853 | echo '<channel>'; | |
854 | echo '<title>Daily - '. $GLOBALS['title'] . '</title>'; | |
855 | echo '<link>'. $pageaddr .'</link>'; | |
856 | echo '<description>Daily shared links</description>'; | |
857 | echo '<language>en-en</language>'; | |
858 | echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL; | |
859 | ||
860 | // For each day. | |
861 | foreach ($days as $day => $linkdates) { | |
862 | $daydate = linkdate2timestamp($day.'_000000'); // Full text date | |
863 | $rfc822date = linkdate2rfc822($day.'_000000'); | |
864 | $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. | |
865 | ||
866 | // Build the HTML body of this RSS entry. | |
867 | $html = ''; | |
868 | $href = ''; | |
869 | $links = array(); | |
870 | ||
871 | // We pre-format some fields for proper output. | |
872 | foreach ($linkdates as $linkdate) { | |
873 | $l = $LINKSDB[$linkdate]; | |
874 | $l['formatedDescription'] = nl2br(keepMultipleSpaces(text2clickable($l['description']))); | |
875 | $l['thumbnail'] = thumbnail($l['url']); | |
876 | $l['timestamp'] = linkdate2timestamp($l['linkdate']); | |
877 | if (startsWith($l['url'], '?')) { | |
878 | $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute | |
879 | } | |
880 | $links[$linkdate] = $l; | |
881 | } | |
882 | ||
883 | // Then build the HTML for this day: | |
884 | $tpl = new RainTPL; | |
885 | $tpl->assign('title', $GLOBALS['title']); | |
886 | $tpl->assign('daydate', $daydate); | |
887 | $tpl->assign('absurl', $absurl); | |
888 | $tpl->assign('links', $links); | |
889 | $tpl->assign('rfc822date', escape($rfc822date)); | |
890 | $html = $tpl->draw('dailyrss', $return_string=true); | |
891 | ||
892 | echo $html . PHP_EOL; | |
893 | } | |
894 | echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->'; | |
895 | ||
896 | $cache->cache(ob_get_contents()); | |
897 | ob_end_flush(); | |
898 | exit; | |
899 | } | |
900 | ||
901 | // "Daily" page. | |
902 | function showDaily() | |
903 | { | |
904 | $LINKSDB = new LinkDB( | |
905 | $GLOBALS['config']['DATASTORE'], | |
906 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
907 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
908 | ); | |
909 | ||
910 | $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. | |
911 | if (isset($_GET['day'])) $day=$_GET['day']; | |
912 | ||
913 | $days = $LINKSDB->days(); | |
914 | $i = array_search($day,$days); | |
915 | if ($i===false) { $i=count($days)-1; $day=$days[$i]; } | |
916 | $previousday=''; | |
917 | $nextday=''; | |
918 | if ($i!==false) | |
919 | { | |
920 | if ($i>=1) $previousday=$days[$i-1]; | |
921 | if ($i<count($days)-1) $nextday=$days[$i+1]; | |
922 | } | |
923 | ||
924 | try { | |
925 | $linksToDisplay = $LINKSDB->filterDay($day); | |
926 | } catch (Exception $exc) { | |
927 | error_log($exc); | |
928 | $linksToDisplay = array(); | |
929 | } | |
930 | ||
931 | // We pre-format some fields for proper output. | |
932 | foreach($linksToDisplay as $key=>$link) | |
933 | { | |
934 | ||
935 | $taglist = explode(' ',$link['tags']); | |
936 | uasort($taglist, 'strcasecmp'); | |
937 | $linksToDisplay[$key]['taglist']=$taglist; | |
938 | $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); | |
939 | $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); | |
940 | $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); | |
941 | } | |
942 | ||
943 | /* We need to spread the articles on 3 columns. | |
944 | I did not want to use a JavaScript lib like http://masonry.desandro.com/ | |
945 | so I manually spread entries with a simple method: I roughly evaluate the | |
946 | height of a div according to title and description length. | |
947 | */ | |
948 | $columns=array(array(),array(),array()); // Entries to display, for each column. | |
949 | $fill=array(0,0,0); // Rough estimate of columns fill. | |
950 | foreach($linksToDisplay as $key=>$link) | |
951 | { | |
952 | // Roughly estimate length of entry (by counting characters) | |
953 | // Title: 30 chars = 1 line. 1 line is 30 pixels height. | |
954 | // Description: 836 characters gives roughly 342 pixel height. | |
955 | // This is not perfect, but it's usually OK. | |
956 | $length=strlen($link['title'])+(342*strlen($link['description']))/836; | |
957 | if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. | |
958 | // Then put in column which is the less filled: | |
959 | $smallest=min($fill); // find smallest value in array. | |
960 | $index=array_search($smallest,$fill); // find index of this smallest value. | |
961 | array_push($columns[$index],$link); // Put entry in this column. | |
962 | $fill[$index]+=$length; | |
963 | } | |
964 | $PAGE = new pageBuilder; | |
965 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
966 | $PAGE->assign('linkcount',count($LINKSDB)); | |
967 | $PAGE->assign('cols', $columns); | |
968 | $PAGE->assign('day',linkdate2timestamp($day.'_000000')); | |
969 | $PAGE->assign('previousday',$previousday); | |
970 | $PAGE->assign('nextday',$nextday); | |
971 | $PAGE->renderPage('daily'); | |
972 | exit; | |
973 | } | |
974 | ||
975 | ||
976 | // ------------------------------------------------------------------------------------------ | |
977 | // Render HTML page (according to URL parameters and user rights) | |
978 | function renderPage() | |
979 | { | |
980 | $LINKSDB = new LinkDB( | |
981 | $GLOBALS['config']['DATASTORE'], | |
982 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
983 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
984 | ); | |
985 | ||
986 | // -------- Display login form. | |
987 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) | |
988 | { | |
989 | if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli | |
990 | $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. | |
991 | $PAGE = new pageBuilder; | |
992 | $PAGE->assign('token',$token); | |
993 | $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); | |
994 | $PAGE->renderPage('loginform'); | |
995 | exit; | |
996 | } | |
997 | // -------- User wants to logout. | |
998 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
999 | { | |
1000 | invalidateCaches($GLOBALS['config']['PAGECACHE']); | |
1001 | logout(); | |
1002 | header('Location: ?'); | |
1003 | exit; | |
1004 | } | |
1005 | ||
1006 | // -------- Picture wall | |
1007 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) | |
1008 | { | |
1009 | // Optionally filter the results: | |
1010 | $links=array(); | |
1011 | if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); | |
1012 | elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1013 | else $links = $LINKSDB; | |
1014 | ||
1015 | $body=''; | |
1016 | $linksToDisplay=array(); | |
1017 | ||
1018 | // Get only links which have a thumbnail. | |
1019 | foreach($links as $link) | |
1020 | { | |
1021 | $permalink='?'.escape(smallhash($link['linkdate'])); | |
1022 | $thumb=lazyThumbnail($link['url'],$permalink); | |
1023 | if ($thumb!='') // Only output links which have a thumbnail. | |
1024 | { | |
1025 | $link['thumbnail']=$thumb; // Thumbnail HTML code. | |
1026 | $linksToDisplay[]=$link; // Add to array. | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | $PAGE = new pageBuilder; | |
1031 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1032 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1033 | $PAGE->renderPage('picwall'); | |
1034 | exit; | |
1035 | } | |
1036 | ||
1037 | // -------- Tag cloud | |
1038 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) | |
1039 | { | |
1040 | $tags= $LINKSDB->allTags(); | |
1041 | ||
1042 | // We sort tags alphabetically, then choose a font size according to count. | |
1043 | // First, find max value. | |
1044 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
1045 | ksort($tags); | |
1046 | $tagList=array(); | |
1047 | foreach($tags as $key=>$value) | |
1048 | // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes. | |
1049 | { | |
1050 | $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); | |
1051 | } | |
1052 | $PAGE = new pageBuilder; | |
1053 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1054 | $PAGE->assign('tags',$tagList); | |
1055 | $PAGE->renderPage('tagcloud'); | |
1056 | exit; | |
1057 | } | |
1058 | ||
1059 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
1060 | if (isset($_GET['addtag'])) | |
1061 | { | |
1062 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
1063 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER | |
1064 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
1065 | ||
1066 | // Prevent redirection loop | |
1067 | if (isset($params['addtag'])) { | |
1068 | unset($params['addtag']); | |
1069 | } | |
1070 | ||
1071 | // Check if this tag is already in the search query and ignore it if it is. | |
1072 | // Each tag is always separated by a space | |
1073 | if (isset($params['searchtags'])) { | |
1074 | $current_tags = explode(' ', $params['searchtags']); | |
1075 | } else { | |
1076 | $current_tags = array(); | |
1077 | } | |
1078 | $addtag = true; | |
1079 | foreach ($current_tags as $value) { | |
1080 | if ($value === $_GET['addtag']) { | |
1081 | $addtag = false; | |
1082 | break; | |
1083 | } | |
1084 | } | |
1085 | // Append the tag if necessary | |
1086 | if (empty($params['searchtags'])) { | |
1087 | $params['searchtags'] = trim($_GET['addtag']); | |
1088 | } | |
1089 | else if ($addtag) { | |
1090 | $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); | |
1091 | } | |
1092 | ||
1093 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
1094 | header('Location: ?'.http_build_query($params)); | |
1095 | exit; | |
1096 | } | |
1097 | ||
1098 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
1099 | if (isset($_GET['removetag'])) { | |
1100 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. | |
1101 | if (empty($_SERVER['HTTP_REFERER'])) { | |
1102 | header('Location: ?'); | |
1103 | exit; | |
1104 | } | |
1105 | ||
1106 | // In case browser does not send HTTP_REFERER | |
1107 | parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params); | |
1108 | ||
1109 | // Prevent redirection loop | |
1110 | if (isset($params['removetag'])) { | |
1111 | unset($params['removetag']); | |
1112 | } | |
1113 | ||
1114 | if (isset($params['searchtags'])) { | |
1115 | $tags = explode(' ',$params['searchtags']); | |
1116 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
1117 | if (count($tags)==0) { | |
1118 | unset($params['searchtags']); | |
1119 | } else { | |
1120 | $params['searchtags'] = implode(' ',$tags); | |
1121 | } | |
1122 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
1123 | } | |
1124 | header('Location: ?'.http_build_query($params)); | |
1125 | exit; | |
1126 | } | |
1127 | ||
1128 | // -------- User wants to change the number of links per page (linksperpage=...) | |
1129 | if (isset($_GET['linksperpage'])) { | |
1130 | if (is_numeric($_GET['linksperpage'])) { | |
1131 | $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); | |
1132 | } | |
1133 | ||
1134 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'))); | |
1135 | exit; | |
1136 | } | |
1137 | ||
1138 | // -------- User wants to see only private links (toggle) | |
1139 | if (isset($_GET['privateonly'])) { | |
1140 | if (empty($_SESSION['privateonly'])) { | |
1141 | $_SESSION['privateonly'] = 1; // See only private links | |
1142 | } else { | |
1143 | unset($_SESSION['privateonly']); // See all links | |
1144 | } | |
1145 | ||
1146 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'))); | |
1147 | exit; | |
1148 | } | |
1149 | ||
1150 | // -------- Handle other actions allowed for non-logged in users: | |
1151 | if (!isLoggedIn()) | |
1152 | { | |
1153 | // User tries to post new link but is not logged in: | |
1154 | // Show login screen, then redirect to ?post=... | |
1155 | if (isset($_GET['post'])) | |
1156 | { | |
1157 | 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($_GET['source']):'')); // Redirect to login page, then back to post link. | |
1158 | exit; | |
1159 | } | |
1160 | ||
1161 | // Same case as above except that user tried to access ?do=addlink without being logged in | |
1162 | // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. | |
1163 | if (isset($_GET['do']) && $_GET['do'] === 'addlink') { | |
1164 | header('Location: ?do=login&post='); | |
1165 | exit; | |
1166 | } | |
1167 | ||
1168 | if (isset($_GET['edit_link'])) { | |
1169 | header('Location: ?do=login&edit_link='. escape($_GET['edit_link'])); | |
1170 | exit; | |
1171 | } | |
1172 | ||
1173 | $PAGE = new pageBuilder; | |
1174 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1175 | $PAGE->renderPage('linklist'); | |
1176 | exit; // Never remove this one! All operations below are reserved for logged in user. | |
1177 | } | |
1178 | ||
1179 | // -------- All other functions are reserved for the registered user: | |
1180 | ||
1181 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
1182 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
1183 | { | |
1184 | $PAGE = new pageBuilder; | |
1185 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1186 | $PAGE->assign('pageabsaddr',index_url($_SERVER)); | |
1187 | $PAGE->renderPage('tools'); | |
1188 | exit; | |
1189 | } | |
1190 | ||
1191 | // -------- User wants to change his/her password. | |
1192 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) | |
1193 | { | |
1194 | if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); | |
1195 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
1196 | { | |
1197 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! | |
1198 | ||
1199 | // Make sure old password is correct. | |
1200 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
1201 | if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } | |
1202 | // Save new password | |
1203 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1204 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
1205 | try { | |
1206 | writeConfig($GLOBALS, isLoggedIn()); | |
1207 | } | |
1208 | catch(Exception $e) { | |
1209 | error_log( | |
1210 | 'ERROR while writing config file after changing password.' . PHP_EOL . | |
1211 | $e->getMessage() | |
1212 | ); | |
1213 | ||
1214 | // TODO: do not handle exceptions/errors in JS. | |
1215 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1216 | exit; | |
1217 | } | |
1218 | echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; | |
1219 | exit; | |
1220 | } | |
1221 | else // show the change password form. | |
1222 | { | |
1223 | $PAGE = new pageBuilder; | |
1224 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1225 | $PAGE->assign('token',getToken()); | |
1226 | $PAGE->renderPage('changepassword'); | |
1227 | exit; | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | // -------- User wants to change configuration | |
1232 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) | |
1233 | { | |
1234 | if (!empty($_POST['title']) ) | |
1235 | { | |
1236 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! | |
1237 | $tz = 'UTC'; | |
1238 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
1239 | if (isTimeZoneValid($_POST['continent'],$_POST['city'])) | |
1240 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
1241 | $GLOBALS['timezone'] = $tz; | |
1242 | $GLOBALS['title']=$_POST['title']; | |
1243 | $GLOBALS['titleLink']=$_POST['titleLink']; | |
1244 | $GLOBALS['redirector']=$_POST['redirector']; | |
1245 | $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); | |
1246 | $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); | |
1247 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); | |
1248 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); | |
1249 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']); | |
1250 | try { | |
1251 | writeConfig($GLOBALS, isLoggedIn()); | |
1252 | } | |
1253 | catch(Exception $e) { | |
1254 | error_log( | |
1255 | 'ERROR while writing config file after configuration update.' . PHP_EOL . | |
1256 | $e->getMessage() | |
1257 | ); | |
1258 | ||
1259 | // TODO: do not handle exceptions/errors in JS. | |
1260 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1261 | exit; | |
1262 | } | |
1263 | echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; | |
1264 | exit; | |
1265 | } | |
1266 | else // Show the configuration form. | |
1267 | { | |
1268 | $PAGE = new pageBuilder; | |
1269 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1270 | $PAGE->assign('token',getToken()); | |
1271 | $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] ); | |
1272 | $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] ); | |
1273 | list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']); | |
1274 | $PAGE->assign('timezone_form', $timezone_form); | |
1275 | $PAGE->assign('timezone_js',$timezone_js); | |
1276 | $PAGE->renderPage('configure'); | |
1277 | exit; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | // -------- User wants to rename a tag or delete it | |
1282 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) | |
1283 | { | |
1284 | if (empty($_POST['fromtag'])) | |
1285 | { | |
1286 | $PAGE = new pageBuilder; | |
1287 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1288 | $PAGE->assign('token',getToken()); | |
1289 | $PAGE->assign('tags', $LINKSDB->allTags()); | |
1290 | $PAGE->renderPage('changetag'); | |
1291 | exit; | |
1292 | } | |
1293 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1294 | ||
1295 | // Delete a tag: | |
1296 | if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) | |
1297 | { | |
1298 | $needle=trim($_POST['fromtag']); | |
1299 | $linksToAlter = $LINKSDB->filterTags($needle,true); // True for case-sensitive tag search. | |
1300 | foreach($linksToAlter as $key=>$value) | |
1301 | { | |
1302 | $tags = explode(' ',trim($value['tags'])); | |
1303 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
1304 | $value['tags']=trim(implode(' ',$tags)); | |
1305 | $LINKSDB[$key]=$value; | |
1306 | } | |
1307 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. | |
1308 | echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; | |
1309 | exit; | |
1310 | } | |
1311 | ||
1312 | // Rename a tag: | |
1313 | if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) | |
1314 | { | |
1315 | $needle=trim($_POST['fromtag']); | |
1316 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
1317 | foreach($linksToAlter as $key=>$value) | |
1318 | { | |
1319 | $tags = explode(' ',trim($value['tags'])); | |
1320 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. | |
1321 | $value['tags']=trim(implode(' ',$tags)); | |
1322 | $LINKSDB[$key]=$value; | |
1323 | } | |
1324 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. | |
1325 | echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; | |
1326 | exit; | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | // -------- User wants to add a link without using the bookmarklet: Show form. | |
1331 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) | |
1332 | { | |
1333 | $PAGE = new pageBuilder; | |
1334 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1335 | $PAGE->renderPage('addlink'); | |
1336 | exit; | |
1337 | } | |
1338 | ||
1339 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
1340 | if (isset($_POST['save_edit'])) | |
1341 | { | |
1342 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! | |
1343 | $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. | |
1344 | $tags = implode(' ', array_unique(explode(' ', $tags))); // Remove duplicates. | |
1345 | $linkdate=$_POST['lf_linkdate']; | |
1346 | $url = trim($_POST['lf_url']); | |
1347 | if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:')) | |
1348 | $url = 'http://'.$url; | |
1349 | $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
1350 | 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags)); | |
1351 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. | |
1352 | $LINKSDB[$linkdate] = $link; | |
1353 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. | |
1354 | pubsubhub(); | |
1355 | ||
1356 | // If we are called from the bookmarklet, we must close the popup: | |
1357 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } | |
1358 | $returnurl = ( !empty($_POST['returnurl']) ? escape($_POST['returnurl']) : '?' ); | |
1359 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. | |
1360 | $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); | |
1361 | header('Location: '. $location); // After saving the link, redirect to the page the user was on. | |
1362 | exit; | |
1363 | } | |
1364 | ||
1365 | // -------- User clicked the "Cancel" button when editing a link. | |
1366 | if (isset($_POST['cancel_edit'])) | |
1367 | { | |
1368 | // If we are called from the bookmarklet, we must close the popup: | |
1369 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } | |
1370 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); | |
1371 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. | |
1372 | $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); | |
1373 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. | |
1374 | exit; | |
1375 | } | |
1376 | ||
1377 | // -------- User clicked the "Delete" button when editing a link: Delete link from database. | |
1378 | if (isset($_POST['delete_link'])) | |
1379 | { | |
1380 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1381 | // We do not need to ask for confirmation: | |
1382 | // - confirmation is handled by JavaScript | |
1383 | // - we are protected from XSRF by the token. | |
1384 | $linkdate=$_POST['lf_linkdate']; | |
1385 | unset($LINKSDB[$linkdate]); | |
1386 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk | |
1387 | ||
1388 | // If we are called from the bookmarklet, we must close the popup: | |
1389 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } | |
1390 | // Pick where we're going to redirect | |
1391 | // ============================================================= | |
1392 | // Basically, we can't redirect to where we were previously if it was a permalink | |
1393 | // or an edit_link, because it would 404. | |
1394 | // Cases: | |
1395 | // - / : nothing in $_GET, redirect to self | |
1396 | // - /?page : redirect to self | |
1397 | // - /?searchterm : redirect to self (there might be other links) | |
1398 | // - /?searchtags : redirect to self | |
1399 | // - /permalink : redirect to / (the link does not exist anymore) | |
1400 | // - /?edit_link : redirect to / (the link does not exist anymore) | |
1401 | // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self | |
1402 | // redirect is not satisfied, and only then redirect to / | |
1403 | $location = "?"; | |
1404 | // Self redirection | |
1405 | if (count($_GET) == 0 | |
1406 | || isset($_GET['page']) | |
1407 | || isset($_GET['searchterm']) | |
1408 | || isset($_GET['searchtags']) | |
1409 | ) { | |
1410 | if (isset($_POST['returnurl'])) { | |
1411 | $location = $_POST['returnurl']; // Handle redirects given by the form | |
1412 | } else { | |
1413 | $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link')); | |
1414 | } | |
1415 | } | |
1416 | ||
1417 | header('Location: ' . $location); // After deleting the link, redirect to appropriate location | |
1418 | exit; | |
1419 | } | |
1420 | ||
1421 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
1422 | if (isset($_GET['edit_link'])) | |
1423 | { | |
1424 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
1425 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
1426 | $PAGE = new pageBuilder; | |
1427 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1428 | $PAGE->assign('link',$link); | |
1429 | $PAGE->assign('link_is_new',false); | |
1430 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1431 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '')); | |
1432 | $PAGE->assign('tags', $LINKSDB->allTags()); | |
1433 | $PAGE->renderPage('editlink'); | |
1434 | exit; | |
1435 | } | |
1436 | ||
1437 | // -------- User want to post a new link: Display link edit form. | |
1438 | if (isset($_GET['post'])) { | |
1439 | $url = cleanup_url($_GET['post']); | |
1440 | ||
1441 | $link_is_new = false; | |
1442 | // Check if URL is not already in database (in this case, we will edit the existing link) | |
1443 | $link = $LINKSDB->getLinkFromUrl($url); | |
1444 | if (!$link) | |
1445 | { | |
1446 | $link_is_new = true; | |
1447 | $linkdate = strval(date('Ymd_His')); | |
1448 | // Get title if it was provided in URL (by the bookmarklet). | |
1449 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); | |
1450 | // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] | |
1451 | $description = (empty($_GET['description']) ? '' : $_GET['description']); | |
1452 | $tags = (empty($_GET['tags']) ? '' : $_GET['tags'] ); | |
1453 | $private = (!empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0); | |
1454 | // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.) | |
1455 | if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) { | |
1456 | // Short timeout to keep the application responsive | |
1457 | list($headers, $data) = get_http_url($url, 4); | |
1458 | // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html | |
1459 | if (strpos($headers[0], '200 OK') !== false) { | |
1460 | // Look for charset in html header. | |
1461 | preg_match('#<meta .*charset=.*>#Usi', $data, $meta); | |
1462 | ||
1463 | // If found, extract encoding. | |
1464 | if (!empty($meta[0])) { | |
1465 | // Get encoding specified in header. | |
1466 | preg_match('#charset="?(.*)"#si', $meta[0], $enc); | |
1467 | // If charset not found, use utf-8. | |
1468 | $html_charset = (!empty($enc[1])) ? strtolower($enc[1]) : 'utf-8'; | |
1469 | } | |
1470 | else { | |
1471 | $html_charset = 'utf-8'; | |
1472 | } | |
1473 | ||
1474 | // Extract title | |
1475 | $title = html_extract_title($data); | |
1476 | if (!empty($title)) { | |
1477 | // Re-encode title in utf-8 if necessary. | |
1478 | $title = ($html_charset == 'iso-8859-1') ? utf8_encode($title) : $title; | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | if ($url == '') { | |
1483 | $url = '?' . smallHash($linkdate); | |
1484 | $title = 'Note: '; | |
1485 | } | |
1486 | $link = array( | |
1487 | 'linkdate' => $linkdate, | |
1488 | 'title' => $title, | |
1489 | 'url' => $url, | |
1490 | 'description' => $description, | |
1491 | 'tags' => $tags, | |
1492 | 'private' => $private | |
1493 | ); | |
1494 | } | |
1495 | ||
1496 | $PAGE = new pageBuilder; | |
1497 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1498 | $PAGE->assign('link',$link); | |
1499 | $PAGE->assign('link_is_new',$link_is_new); | |
1500 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1501 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); | |
1502 | $PAGE->assign('source',(isset($_GET['source']) ? $_GET['source'] : '')); | |
1503 | $PAGE->assign('tags', $LINKSDB->allTags()); | |
1504 | $PAGE->renderPage('editlink'); | |
1505 | exit; | |
1506 | } | |
1507 | ||
1508 | // -------- Export as Netscape Bookmarks HTML file. | |
1509 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export')) | |
1510 | { | |
1511 | if (empty($_GET['what'])) | |
1512 | { | |
1513 | $PAGE = new pageBuilder; | |
1514 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1515 | $PAGE->renderPage('export'); | |
1516 | exit; | |
1517 | } | |
1518 | $exportWhat=$_GET['what']; | |
1519 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); | |
1520 | ||
1521 | header('Content-Type: text/html; charset=utf-8'); | |
1522 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); | |
1523 | $currentdate=date('Y/m/d H:i:s'); | |
1524 | echo <<<HTML | |
1525 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
1526 | <!-- This is an automatically generated file. | |
1527 | It will be read and overwritten. | |
1528 | DO NOT EDIT! --> | |
1529 | <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} --> | |
1530 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
1531 | <TITLE>Bookmarks</TITLE> | |
1532 | <H1>Bookmarks</H1> | |
1533 | HTML; | |
1534 | foreach($LINKSDB as $link) | |
1535 | { | |
1536 | if ($exportWhat=='all' || | |
1537 | ($exportWhat=='private' && $link['private']!=0) || | |
1538 | ($exportWhat=='public' && $link['private']==0)) | |
1539 | { | |
1540 | echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; | |
1541 | if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"'; | |
1542 | echo '>'.$link['title']."</A>\n"; | |
1543 | if ($link['description']!='') echo '<DD>'.$link['description']."\n"; | |
1544 | } | |
1545 | } | |
1546 | exit; | |
1547 | } | |
1548 | ||
1549 | // -------- User is uploading a file for import | |
1550 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1551 | { | |
1552 | // If file is too big, some form field may be missing. | |
1553 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1554 | { | |
1555 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
1556 | echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>'; | |
1557 | exit; | |
1558 | } | |
1559 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1560 | importFile(); | |
1561 | exit; | |
1562 | } | |
1563 | ||
1564 | // -------- Show upload/import dialog: | |
1565 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import')) | |
1566 | { | |
1567 | $PAGE = new pageBuilder; | |
1568 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1569 | $PAGE->assign('token',getToken()); | |
1570 | $PAGE->assign('maxfilesize',getMaxFileSize()); | |
1571 | $PAGE->renderPage('import'); | |
1572 | exit; | |
1573 | } | |
1574 | ||
1575 | // -------- Otherwise, simply display search form and links: | |
1576 | $PAGE = new pageBuilder; | |
1577 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1578 | $PAGE->renderPage('linklist'); | |
1579 | exit; | |
1580 | } | |
1581 | ||
1582 | // ----------------------------------------------------------------------------------------------- | |
1583 | // Process the import file form. | |
1584 | function importFile() | |
1585 | { | |
1586 | if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } | |
1587 | $LINKSDB = new LinkDB( | |
1588 | $GLOBALS['config']['DATASTORE'], | |
1589 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], | |
1590 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
1591 | ); | |
1592 | $filename=$_FILES['filetoupload']['name']; | |
1593 | $filesize=$_FILES['filetoupload']['size']; | |
1594 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
1595 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? | |
1596 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? | |
1597 | $import_count=0; | |
1598 | ||
1599 | // Sniff file type: | |
1600 | $type='unknown'; | |
1601 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1602 | ||
1603 | // Then import the bookmarks. | |
1604 | if ($type=='netscape') | |
1605 | { | |
1606 | // This is a standard Netscape-style bookmark file. | |
1607 | // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. | |
1608 | foreach(explode('<DT>',$data) as $html) // explode is very fast | |
1609 | { | |
1610 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1611 | $d = explode('<DD>',$html); | |
1612 | if (startswith($d[0],'<A ')) | |
1613 | { | |
1614 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) | |
1615 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
1616 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); | |
1617 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
1618 | $raw_add_date=0; | |
1619 | foreach($matches as $m) | |
1620 | { | |
1621 | $attr=$m[1]; $value=$m[2]; | |
1622 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); | |
1623 | elseif ($attr=='ADD_DATE') | |
1624 | { | |
1625 | $raw_add_date=intval($value); | |
1626 | if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds | |
1627 | } | |
1628 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); | |
1629 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); | |
1630 | } | |
1631 | if ($link['url']!='') | |
1632 | { | |
1633 | if ($private==1) $link['private']=1; | |
1634 | $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. | |
1635 | if ($dblink==false) | |
1636 | { // Link not in database, let's import it... | |
1637 | if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE | |
1638 | ||
1639 | // Make sure date/time is not already used by another link. | |
1640 | // (Some bookmark files have several different links with the same ADD_DATE) | |
1641 | // We increment date by 1 second until we find a date which is not used in DB. | |
1642 | // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) | |
1643 | while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. | |
1644 | $link['linkdate']=date('Ymd_His',$raw_add_date); | |
1645 | $LINKSDB[$link['linkdate']] = $link; | |
1646 | $import_count++; | |
1647 | } | |
1648 | else // Link already present in database. | |
1649 | { | |
1650 | if ($overwrite) | |
1651 | { // If overwrite is required, we import link data, except date/time. | |
1652 | $link['linkdate']=$dblink['linkdate']; | |
1653 | $LINKSDB[$link['linkdate']] = $link; | |
1654 | $import_count++; | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | } | |
1659 | } | |
1660 | } | |
1661 | $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); | |
1662 | ||
1663 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; | |
1664 | } | |
1665 | else | |
1666 | { | |
1667 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | // ----------------------------------------------------------------------------------------------- | |
1672 | // Template for the list of links (<div id="linklist">) | |
1673 | // This function fills all the necessary fields in the $PAGE for the template 'linklist.html' | |
1674 | function buildLinkList($PAGE,$LINKSDB) | |
1675 | { | |
1676 | // ---- Filter link database according to parameters | |
1677 | $linksToDisplay=array(); | |
1678 | $search_type=''; | |
1679 | $search_crits=''; | |
1680 | if (isset($_GET['searchterm'])) // Fulltext search | |
1681 | { | |
1682 | $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm'])); | |
1683 | $search_crits=escape(trim($_GET['searchterm'])); | |
1684 | $search_type='fulltext'; | |
1685 | } | |
1686 | elseif (isset($_GET['searchtags'])) // Search by tag | |
1687 | { | |
1688 | $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1689 | $search_crits=explode(' ',escape(trim($_GET['searchtags']))); | |
1690 | $search_type='tags'; | |
1691 | } | |
1692 | elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL | |
1693 | { | |
1694 | $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6)); | |
1695 | if (count($linksToDisplay)==0) | |
1696 | { | |
1697 | header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); | |
1698 | echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.'; | |
1699 | echo '<br>Would you mind <a href="?">clicking here</a>?'; | |
1700 | exit; | |
1701 | } | |
1702 | $search_type='permalink'; | |
1703 | } | |
1704 | else | |
1705 | $linksToDisplay = $LINKSDB; // Otherwise, display without filtering. | |
1706 | ||
1707 | ||
1708 | // Option: Show only private links | |
1709 | if (!empty($_SESSION['privateonly'])) | |
1710 | { | |
1711 | $tmp = array(); | |
1712 | foreach($linksToDisplay as $linkdate=>$link) | |
1713 | { | |
1714 | if ($link['private']!=0) $tmp[$linkdate]=$link; | |
1715 | } | |
1716 | $linksToDisplay=$tmp; | |
1717 | } | |
1718 | ||
1719 | // ---- Handle paging. | |
1720 | /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess??? | |
1721 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " | |
1722 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
1723 | */ | |
1724 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks PHP. | |
1725 | ||
1726 | // If there is only a single link, we change on-the-fly the title of the page. | |
1727 | if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title']; | |
1728 | ||
1729 | // Select articles according to paging. | |
1730 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
1731 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
1732 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
1733 | $page = ( $page<1 ? 1 : $page ); | |
1734 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
1735 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
1736 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
1737 | $linkDisp=array(); // Links to display | |
1738 | while ($i<$end && $i<count($keys)) | |
1739 | { | |
1740 | $link = $linksToDisplay[$keys[$i]]; | |
1741 | $link['description']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); | |
1742 | $title=$link['title']; | |
1743 | $classLi = $i%2!=0 ? '' : 'publicLinkHightLight'; | |
1744 | $link['class'] = ($link['private']==0 ? $classLi : 'private'); | |
1745 | $link['timestamp']=linkdate2timestamp($link['linkdate']); | |
1746 | $taglist = explode(' ',$link['tags']); | |
1747 | uasort($taglist, 'strcasecmp'); | |
1748 | $link['taglist']=$taglist; | |
1749 | ||
1750 | if ($link["url"][0] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this. | |
1751 | strlen($link["url"]) === 7) { | |
1752 | $link["url"] = index_url($_SERVER) . $link["url"]; | |
1753 | } | |
1754 | ||
1755 | $linkDisp[$keys[$i]] = $link; | |
1756 | $i++; | |
1757 | } | |
1758 | ||
1759 | // Compute paging navigation | |
1760 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
1761 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
1762 | $paging=''; | |
1763 | $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags; | |
1764 | $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags; | |
1765 | ||
1766 | $token = ''; if (isLoggedIn()) $token=getToken(); | |
1767 | ||
1768 | // Fill all template fields. | |
1769 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1770 | $PAGE->assign('previous_page_url',$previous_page_url); | |
1771 | $PAGE->assign('next_page_url',$next_page_url); | |
1772 | $PAGE->assign('page_current',$page); | |
1773 | $PAGE->assign('page_max',$pagecount); | |
1774 | $PAGE->assign('result_count',count($linksToDisplay)); | |
1775 | $PAGE->assign('search_type',$search_type); | |
1776 | $PAGE->assign('search_crits',$search_crits); | |
1777 | $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // Optional redirector URL. | |
1778 | $PAGE->assign('token',$token); | |
1779 | $PAGE->assign('links',$linkDisp); | |
1780 | $PAGE->assign('tags', $LINKSDB->allTags()); | |
1781 | return; | |
1782 | } | |
1783 | ||
1784 | // Compute the thumbnail for a link. | |
1785 | // | |
1786 | // With a link to the original URL. | |
1787 | // Understands various services (youtube.com...) | |
1788 | // Input: $url = URL for which the thumbnail must be found. | |
1789 | // $href = if provided, this URL will be followed instead of $url | |
1790 | // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt) | |
1791 | // Some of them may be missing. | |
1792 | // Return an empty array if no thumbnail available. | |
1793 | function computeThumbnail($url,$href=false) | |
1794 | { | |
1795 | if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array(); | |
1796 | if ($href==false) $href=$url; | |
1797 | ||
1798 | // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link. | |
1799 | // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg ) | |
1800 | // ^^^^^^^^^^^ ^^^^^^^^^^^ | |
1801 | $domain = parse_url($url,PHP_URL_HOST); | |
1802 | if ($domain=='youtube.com' || $domain=='www.youtube.com') | |
1803 | { | |
1804 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail | |
1805 | if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg', | |
1806 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); | |
1807 | } | |
1808 | if ($domain=='youtu.be') // Youtube short links | |
1809 | { | |
1810 | $path = parse_url($url,PHP_URL_PATH); | |
1811 | return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg', | |
1812 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); | |
1813 | } | |
1814 | if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting | |
1815 | { | |
1816 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename. | |
1817 | if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']), | |
1818 | 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail'); | |
1819 | } | |
1820 | ||
1821 | if ($domain=='imgur.com') | |
1822 | { | |
1823 | $path = parse_url($url,PHP_URL_PATH); | |
1824 | if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available. | |
1825 | if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg', | |
1826 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); | |
1827 | if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg', | |
1828 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); | |
1829 | ||
1830 | if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg', | |
1831 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); | |
1832 | } | |
1833 | if ($domain=='i.imgur.com') | |
1834 | { | |
1835 | $pi = pathinfo(parse_url($url,PHP_URL_PATH)); | |
1836 | if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg', | |
1837 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); | |
1838 | } | |
1839 | if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com') | |
1840 | { | |
1841 | if (strpos($url,'dailymotion.com/video/')!==false) | |
1842 | { | |
1843 | $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url); | |
1844 | return array('src'=>$thumburl, | |
1845 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail'); | |
1846 | } | |
1847 | } | |
1848 | if (endsWith($domain,'.imageshack.us')) | |
1849 | { | |
1850 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1851 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1852 | { | |
1853 | $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext; | |
1854 | return array('src'=>$thumburl, | |
1855 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail'); | |
1856 | } | |
1857 | } | |
1858 | ||
1859 | // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL. | |
1860 | // So we deport the thumbnail generation in order not to slow down page generation | |
1861 | // (and we also cache the thumbnail) | |
1862 | ||
1863 | if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache. | |
1864 | ||
1865 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com') | |
1866 | || $domain=='vimeo.com' | |
1867 | || $domain=='ted.com' || endsWith($domain,'.ted.com') | |
1868 | || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com') | |
1869 | ) | |
1870 | { | |
1871 | if ($domain=='vimeo.com') | |
1872 | { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric) | |
1873 | $path = parse_url($url,PHP_URL_PATH); | |
1874 | if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL. | |
1875 | } | |
1876 | if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
1877 | { // Make sure this URL points to a single comic (/xxx... where xxx is numeric) | |
1878 | $path = parse_url($url,PHP_URL_PATH); | |
1879 | if (!preg_match('!/\d+.+?!',$path)) return array(); | |
1880 | } | |
1881 | if ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
1882 | { // Make sure this TED URL points to a video (/talks/...) | |
1883 | $path = parse_url($url,PHP_URL_PATH); | |
1884 | if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL. | |
1885 | } | |
1886 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
1887 | return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), | |
1888 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); | |
1889 | } | |
1890 | ||
1891 | // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif | |
1892 | // Technically speaking, we should download ALL links and check their Content-Type to see if they are images. | |
1893 | // But using the extension will do. | |
1894 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1895 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1896 | { | |
1897 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
1898 | return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), | |
1899 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); | |
1900 | } | |
1901 | return array(); // No thumbnail. | |
1902 | ||
1903 | } | |
1904 | ||
1905 | ||
1906 | // Returns the HTML code to display a thumbnail for a link | |
1907 | // with a link to the original URL. | |
1908 | // Understands various services (youtube.com...) | |
1909 | // Input: $url = URL for which the thumbnail must be found. | |
1910 | // $href = if provided, this URL will be followed instead of $url | |
1911 | // Returns '' if no thumbnail available. | |
1912 | function thumbnail($url,$href=false) | |
1913 | { | |
1914 | $t = computeThumbnail($url,$href); | |
1915 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
1916 | ||
1917 | $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"'; | |
1918 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
1919 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
1920 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
1921 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
1922 | $html.='></a>'; | |
1923 | return $html; | |
1924 | } | |
1925 | ||
1926 | // Returns the HTML code to display a thumbnail for a link | |
1927 | // for the picture wall (using lazy image loading) | |
1928 | // Understands various services (youtube.com...) | |
1929 | // Input: $url = URL for which the thumbnail must be found. | |
1930 | // $href = if provided, this URL will be followed instead of $url | |
1931 | // Returns '' if no thumbnail available. | |
1932 | function lazyThumbnail($url,$href=false) | |
1933 | { | |
1934 | $t = computeThumbnail($url,$href); | |
1935 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
1936 | ||
1937 | $html='<a href="'.escape($t['href']).'">'; | |
1938 | ||
1939 | // Lazy image | |
1940 | $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"'; | |
1941 | ||
1942 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
1943 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
1944 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
1945 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
1946 | $html.='>'; | |
1947 | ||
1948 | // No-JavaScript fallback. | |
1949 | $html.='<noscript><img src="'.escape($t['src']).'"'; | |
1950 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
1951 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
1952 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
1953 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
1954 | $html.='></noscript></a>'; | |
1955 | ||
1956 | return $html; | |
1957 | } | |
1958 | ||
1959 | ||
1960 | // ----------------------------------------------------------------------------------------------- | |
1961 | // Installation | |
1962 | // This function should NEVER be called if the file data/config.php exists. | |
1963 | function install() | |
1964 | { | |
1965 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. | |
1966 | if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); | |
1967 | ||
1968 | ||
1969 | // This part makes sure sessions works correctly. | |
1970 | // (Because on some hosts, session.save_path may not be set correctly, | |
1971 | // or we may not have write access to it.) | |
1972 | if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) | |
1973 | { // Step 2: Check if data in session is correct. | |
1974 | echo '<pre>Sessions do not seem to work correctly on your server.<br>'; | |
1975 | echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>'; | |
1976 | echo 'It currently points to '.session_save_path().'<br>'; | |
1977 | echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'; | |
1978 | echo '<br><a href="?">Click to try again.</a></pre>'; | |
1979 | die; | |
1980 | } | |
1981 | if (!isset($_SESSION['session_tested'])) | |
1982 | { // Step 1 : Try to store data in session and reload page. | |
1983 | $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. | |
1984 | header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data. | |
1985 | } | |
1986 | if (isset($_GET['test_session'])) | |
1987 | { // Step 3: Sessions are OK. Remove test parameter from URL. | |
1988 | header('Location: '.index_url($_SERVER)); | |
1989 | } | |
1990 | ||
1991 | ||
1992 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) | |
1993 | { | |
1994 | $tz = 'UTC'; | |
1995 | if (!empty($_POST['continent']) && !empty($_POST['city'])) { | |
1996 | if (isTimeZoneValid($_POST['continent'], $_POST['city'])) { | |
1997 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
1998 | } | |
1999 | } | |
2000 | $GLOBALS['timezone'] = $tz; | |
2001 | // Everything is ok, let's create config file. | |
2002 | $GLOBALS['login'] = $_POST['setlogin']; | |
2003 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
2004 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
2005 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] ); | |
2006 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); | |
2007 | try { | |
2008 | writeConfig($GLOBALS, isLoggedIn()); | |
2009 | } | |
2010 | catch(Exception $e) { | |
2011 | error_log( | |
2012 | 'ERROR while writing config file after installation.' . PHP_EOL . | |
2013 | $e->getMessage() | |
2014 | ); | |
2015 | ||
2016 | // TODO: do not handle exceptions/errors in JS. | |
2017 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>'; | |
2018 | exit; | |
2019 | } | |
2020 | echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>'; | |
2021 | exit; | |
2022 | } | |
2023 | ||
2024 | // Display config form: | |
2025 | list($timezone_form, $timezone_js) = generateTimeZoneForm(); | |
2026 | $timezone_html = ''; | |
2027 | if ($timezone_form != '') { | |
2028 | $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
2029 | } | |
2030 | ||
2031 | $PAGE = new pageBuilder; | |
2032 | $PAGE->assign('timezone_html',$timezone_html); | |
2033 | $PAGE->assign('timezone_js',$timezone_js); | |
2034 | $PAGE->renderPage('install'); | |
2035 | exit; | |
2036 | } | |
2037 | ||
2038 | if (!function_exists('json_encode')) { | |
2039 | function json_encode($data) { | |
2040 | switch ($type = gettype($data)) { | |
2041 | case 'NULL': | |
2042 | return 'null'; | |
2043 | case 'boolean': | |
2044 | return ($data ? 'true' : 'false'); | |
2045 | case 'integer': | |
2046 | case 'double': | |
2047 | case 'float': | |
2048 | return $data; | |
2049 | case 'string': | |
2050 | return '"' . addslashes($data) . '"'; | |
2051 | case 'object': | |
2052 | $data = get_object_vars($data); | |
2053 | case 'array': | |
2054 | $output_index_count = 0; | |
2055 | $output_indexed = array(); | |
2056 | $output_associative = array(); | |
2057 | foreach ($data as $key => $value) { | |
2058 | $output_indexed[] = json_encode($value); | |
2059 | $output_associative[] = json_encode($key) . ':' . json_encode($value); | |
2060 | if ($output_index_count !== NULL && $output_index_count++ !== $key) { | |
2061 | $output_index_count = NULL; | |
2062 | } | |
2063 | } | |
2064 | if ($output_index_count !== NULL) { | |
2065 | return '[' . implode(',', $output_indexed) . ']'; | |
2066 | } else { | |
2067 | return '{' . implode(',', $output_associative) . '}'; | |
2068 | } | |
2069 | default: | |
2070 | return ''; // Not supported | |
2071 | } | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | ||
2076 | ||
2077 | /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL, | |
2078 | I have deported the thumbnail URL code generation here, otherwise this would slow down page generation. | |
2079 | The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail. | |
2080 | This function is called by passing the URL: | |
2081 | http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL] | |
2082 | [URL] is the URL of the link (e.g. a flickr page) | |
2083 | [HMAC] is the signature for the [URL] (so that these URL cannot be forged). | |
2084 | The function below will fetch the image from the webservice and store it in the cache. | |
2085 | */ | |
2086 | function genThumbnail() | |
2087 | { | |
2088 | // Make sure the parameters in the URL were generated by us. | |
2089 | $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); | |
2090 | if ($sign!=$_GET['hmac']) die('Naughty boy!'); | |
2091 | ||
2092 | // Let's see if we don't already have the image for this URL in the cache. | |
2093 | $thumbname=hash('sha1',$_GET['url']).'.jpg'; | |
2094 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) | |
2095 | { // We have the thumbnail, just serve it: | |
2096 | header('Content-Type: image/jpeg'); | |
2097 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); | |
2098 | return; | |
2099 | } | |
2100 | // We may also serve a blank image (if service did not respond) | |
2101 | $blankname=hash('sha1',$_GET['url']).'.gif'; | |
2102 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) | |
2103 | { | |
2104 | header('Content-Type: image/gif'); | |
2105 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); | |
2106 | return; | |
2107 | } | |
2108 | ||
2109 | // Otherwise, generate the thumbnail. | |
2110 | $url = $_GET['url']; | |
2111 | $domain = parse_url($url,PHP_URL_HOST); | |
2112 | ||
2113 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) | |
2114 | { | |
2115 | // Crude replacement to handle new flickr domain policy (They prefer www. now) | |
2116 | $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url); | |
2117 | ||
2118 | // Is this a link to an image, or to a flickr page ? | |
2119 | $imageurl=''; | |
2120 | if (endswith(parse_url($url,PHP_URL_PATH),'.jpg')) | |
2121 | { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg | |
2122 | preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches); | |
2123 | if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg'; | |
2124 | } | |
2125 | else // This is a flickr page (html) | |
2126 | { | |
2127 | // Get the flickr html page. | |
2128 | list($headers, $data) = get_http_url($url, 20); | |
2129 | if (strpos($headers[0], '200 OK') !== false) | |
2130 | { | |
2131 | // flickr now nicely provides the URL of the thumbnail in each flickr page. | |
2132 | preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!',$data,$matches); | |
2133 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2134 | ||
2135 | // In albums (and some other pages), the link rel="image_src" is not provided, | |
2136 | // but flickr provides: | |
2137 | // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" /> | |
2138 | if ($imageurl=='') | |
2139 | { | |
2140 | preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!',$data,$matches); | |
2141 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2142 | } | |
2143 | } | |
2144 | } | |
2145 | ||
2146 | if ($imageurl!='') | |
2147 | { // Let's download the image. | |
2148 | // Image is 240x120, so 10 seconds to download should be enough. | |
2149 | list($headers, $data) = get_http_url($imageurl, 10); | |
2150 | if (strpos($headers[0], '200 OK') !== false) { | |
2151 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2152 | header('Content-Type: image/jpeg'); | |
2153 | echo $data; | |
2154 | return; | |
2155 | } | |
2156 | } | |
2157 | } | |
2158 | ||
2159 | elseif ($domain=='vimeo.com' ) | |
2160 | { | |
2161 | // This is more complex: we have to perform a HTTP request, then parse the result. | |
2162 | // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098 | |
2163 | $vid = substr(parse_url($url,PHP_URL_PATH),1); | |
2164 | list($headers, $data) = get_http_url('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5); | |
2165 | if (strpos($headers[0], '200 OK') !== false) { | |
2166 | $t = unserialize($data); | |
2167 | $imageurl = $t[0]['thumbnail_medium']; | |
2168 | // Then we download the image and serve it to our client. | |
2169 | list($headers, $data) = get_http_url($imageurl, 10); | |
2170 | if (strpos($headers[0], '200 OK') !== false) { | |
2171 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2172 | header('Content-Type: image/jpeg'); | |
2173 | echo $data; | |
2174 | return; | |
2175 | } | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | elseif ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
2180 | { | |
2181 | // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page | |
2182 | // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html | |
2183 | // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" /> | |
2184 | list($headers, $data) = get_http_url($url, 5); | |
2185 | if (strpos($headers[0], '200 OK') !== false) { | |
2186 | // Extract the link to the thumbnail | |
2187 | preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); | |
2188 | if (!empty($matches[1])) | |
2189 | { // Let's download the image. | |
2190 | $imageurl=$matches[1]; | |
2191 | // No control on image size, so wait long enough | |
2192 | list($headers, $data) = get_http_url($imageurl, 20); | |
2193 | if (strpos($headers[0], '200 OK') !== false) { | |
2194 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2195 | file_put_contents($filepath,$data); // Save image to cache. | |
2196 | if (resizeImage($filepath)) | |
2197 | { | |
2198 | header('Content-Type: image/jpeg'); | |
2199 | echo file_get_contents($filepath); | |
2200 | return; | |
2201 | } | |
2202 | } | |
2203 | } | |
2204 | } | |
2205 | } | |
2206 | ||
2207 | elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
2208 | { | |
2209 | // There is no thumbnail available for xkcd comics, so download the whole image and resize it. | |
2210 | // http://xkcd.com/327/ | |
2211 | // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" /> | |
2212 | list($headers, $data) = get_http_url($url, 5); | |
2213 | if (strpos($headers[0], '200 OK') !== false) { | |
2214 | // Extract the link to the thumbnail | |
2215 | preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches); | |
2216 | if (!empty($matches[1])) | |
2217 | { // Let's download the image. | |
2218 | $imageurl=$matches[1]; | |
2219 | // No control on image size, so wait long enough | |
2220 | list($headers, $data) = get_http_url($imageurl, 20); | |
2221 | if (strpos($headers[0], '200 OK') !== false) { | |
2222 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2223 | file_put_contents($filepath,$data); // Save image to cache. | |
2224 | if (resizeImage($filepath)) | |
2225 | { | |
2226 | header('Content-Type: image/jpeg'); | |
2227 | echo file_get_contents($filepath); | |
2228 | return; | |
2229 | } | |
2230 | } | |
2231 | } | |
2232 | } | |
2233 | } | |
2234 | ||
2235 | else | |
2236 | { | |
2237 | // For all other domains, we try to download the image and make a thumbnail. | |
2238 | // We allow 30 seconds max to download (and downloads are limited to 4 Mb) | |
2239 | list($headers, $data) = get_http_url($url, 30); | |
2240 | if (strpos($headers[0], '200 OK') !== false) { | |
2241 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2242 | file_put_contents($filepath,$data); // Save image to cache. | |
2243 | if (resizeImage($filepath)) | |
2244 | { | |
2245 | header('Content-Type: image/jpeg'); | |
2246 | echo file_get_contents($filepath); | |
2247 | return; | |
2248 | } | |
2249 | } | |
2250 | } | |
2251 | ||
2252 | ||
2253 | // Otherwise, return an empty image (8x8 transparent gif) | |
2254 | $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7'); | |
2255 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice. | |
2256 | header('Content-Type: image/gif'); | |
2257 | echo $blankgif; | |
2258 | } | |
2259 | ||
2260 | // Make a thumbnail of the image (to width: 120 pixels) | |
2261 | // Returns true if success, false otherwise. | |
2262 | function resizeImage($filepath) | |
2263 | { | |
2264 | if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible. | |
2265 | ||
2266 | // Trick: some stupid people rename GIF as JPEG... or else. | |
2267 | // So we really try to open each image type whatever the extension is. | |
2268 | $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type. | |
2269 | $im=false; | |
2270 | $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough. | |
2271 | $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath); | |
2272 | $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath); | |
2273 | if (!$im) return false; // Unable to open image (corrupted or not an image) | |
2274 | $w = imagesx($im); | |
2275 | $h = imagesy($im); | |
2276 | $ystart = 0; $yheight=$h; | |
2277 | if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; } | |
2278 | $nw = 120; // Desired width | |
2279 | $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height. | |
2280 | // Resize image: | |
2281 | $im2 = imagecreatetruecolor($nw,$nh); | |
2282 | imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight); | |
2283 | imageinterlace($im2,true); // For progressive JPEG. | |
2284 | $tempname=$filepath.'_TEMP.jpg'; | |
2285 | imagejpeg($im2, $tempname, 90); | |
2286 | imagedestroy($im); | |
2287 | imagedestroy($im2); | |
2288 | unlink($filepath); | |
2289 | rename($tempname,$filepath); // Overwrite original picture with thumbnail. | |
2290 | return true; | |
2291 | } | |
2292 | ||
2293 | try { | |
2294 | mergeDeprecatedConfig($GLOBALS, isLoggedIn()); | |
2295 | } catch(Exception $e) { | |
2296 | error_log( | |
2297 | 'ERROR while merging deprecated options.php file.' . PHP_EOL . | |
2298 | $e->getMessage() | |
2299 | ); | |
2300 | } | |
2301 | ||
2302 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database. | |
2303 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
2304 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; } | |
2305 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; } | |
2306 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; } | |
2307 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE']; | |
2308 | renderPage(); | |
2309 | ?> |