]> git.immae.eu Git - github/shaarli/Shaarli.git/blame - index.php
projects / github / shaarli / Shaarli.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge pull request #472 from ArthurHoaro/wallabag-version-parameter
[github/shaarli/Shaarli.git] / index.php
CommitLineData
45034273 1<?php
49e2b35b 2/**
729d2671 3 * Shaarli v0.6.3 - Shaare your links...
49e2b35b
V		 4 *
5 * The personal, minimalist, super-fast, no-database Delicious clone.
6 *
7 * Friendly fork by the Shaarli community:
8 * - https://github.com/shaarli/Shaarli
9 *
10 * Original project by sebsauvage.net:
11 * - http://sebsauvage.net/wiki/doku.php?id=php:shaarli
12 * - https://github.com/sebsauvage/Shaarli
13 *
14 * Licence: http://www.opensource.org/licenses/zlib-license.php
15 *
16 * Requires: PHP 5.3.x
17 */
afd7b77b
V		 18
19// Set 'UTC' as the default timezone if it is not defined in php.ini
20// See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone
21if (date_default_timezone_get() == '') {
22 date_default_timezone_set('UTC');
23}
cb49ab94 24
28bb2b74
V		 25/* -----------------------------------------------------------------------------
26 * Hardcoded parameters
27 * You should not touch any code below (or at your own risks!)
28 * (These parameters can be overwritten by editing the file /data/config.php)
29 * -----------------------------------------------------------------------------
30 */
31
32/*
33 * Shaarli directories & configuration files
34 */
35// Data subdirectory
36$GLOBALS['config']['DATADIR'] = 'data';
37
38// Main configuration file
39$GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php';
40
41// Link datastore
42$GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php';
43
44// Banned IPs
45$GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php';
46
2e28269b
V		 47// Access log
48$GLOBALS['config']['LOG_FILE'] = $GLOBALS['config']['DATADIR'].'/log.txt';
49
28bb2b74
V		 50// For updates check of Shaarli
51$GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt';
52
7c873f1c
A		 53// Set ENABLE_UPDATECHECK to disabled by default.
54$GLOBALS['config']['ENABLE_UPDATECHECK'] = false;
55
28bb2b74
V		 56// RainTPL cache directory (keep the trailing slash!)
57$GLOBALS['config']['RAINTPL_TMP'] = 'tmp/';
58// Raintpl template directory (keep the trailing slash!)
59$GLOBALS['config']['RAINTPL_TPL'] = 'tpl/';
60
2e28269b 61// Thumbnail cache directory
28bb2b74
V		 62$GLOBALS['config']['CACHEDIR'] = 'cache';
63
64// Atom & RSS feed cache directory
65$GLOBALS['config']['PAGECACHE'] = 'pagecache';
66
67
68/*
69 * Global configuration
70 */
71// Ban IP after this many failures
72$GLOBALS['config']['BAN_AFTER'] = 4;
73// Ban duration for IP address after login failures (in seconds)
74$GLOBALS['config']['BAN_DURATION'] = 1800;
75
76// Feed options
77// Enable RSS permalinks by default.
78// This corresponds to the default behavior of shaarli before this was added as an option.
79$GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = true;
80// If true, an extra "ATOM feed" button will be displayed in the toolbar
81$GLOBALS['config']['SHOW_ATOM'] = false;
82
83// Link display options
caee7ff9 84$GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false;
28bb2b74
V		 85$GLOBALS['config']['HIDE_TIMESTAMPS'] = false;
86$GLOBALS['config']['LINKS_PER_PAGE'] = 20;
87
88// Open Shaarli (true): anyone can add/edit/delete links without having to login
89$GLOBALS['config']['OPEN_SHAARLI'] = false;
90
91// Thumbnails
92// Display thumbnails in links
93$GLOBALS['config']['ENABLE_THUMBNAILS'] = true;
94// Store thumbnails in a local cache
95$GLOBALS['config']['ENABLE_LOCALCACHE'] = true;
96
97// Update check frequency for Shaarli. 86400 seconds=24 hours
4407b45f
V		 98$GLOBALS['config']['UPDATECHECK_BRANCH'] = 'stable';
99$GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400;
28bb2b74
V		 100
101
102/*
103 * Plugin configuration
104 *
105 * Warning: order matters!
106 *
107 * These settings may be be overriden in:
108 * - data/config.php
109 * - each plugin's configuration file
110 */
6fc14d53
A		 111//$GLOBALS['config']['ENABLED_PLUGINS'] = array(
112// 'qrcode', 'archiveorg', 'readityourself', 'demo_plugin', 'playvideos',
113// 'wallabag', 'markdown', 'addlink_toolbar',
114//);
6fc14d53
A		 115$GLOBALS['config']['ENABLED_PLUGINS'] = array('qrcode');
116
091e2d13
A		 117// Initialize plugin parameters array.
118$GLOBALS['plugins'] = array();
28bb2b74
V		 119
120// PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
121$GLOBALS['config']['PUBSUBHUB_URL'] = '';
122
123/*
124 * PHP configuration
125 */
729d2671 126define('shaarli_version', '0.6.3');
28bb2b74 127
ae00595b
CH		 128// http://server.com/x/shaarli --> /shaarli/
129define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0)));
45034273 130
28bb2b74
V		 131// High execution time in case of problematic imports/exports.
132ini_set('max_input_time','60');
133
134// Try to set max upload file size and read
135ini_set('memory_limit', '128M');
45034273
SS		 136ini_set('post_max_size', '16M');
137ini_set('upload_max_filesize', '16M');
45034273 138
28bb2b74
V		 139// See all error except warnings
140error_reporting(E_ALL^E_WARNING);
141// See all errors (for debugging only)
142//error_reporting(-1);
143
144/*
145 * User configuration
146 */
50c9a12e
V		 147if (is_file($GLOBALS['config']['CONFIG_FILE'])) {
148 require_once $GLOBALS['config']['CONFIG_FILE'];
149}
150
ca74886f 151// Shaarli library
2e28269b 152require_once 'application/ApplicationUtils.php';
01e48f26
V		 153require_once 'application/Cache.php';
154require_once 'application/CachedPage.php';
2e28269b 155require_once 'application/FileUtils.php';
451314eb 156require_once 'application/HttpUtils.php';
ca74886f 157require_once 'application/LinkDB.php';
822bffce 158require_once 'application/LinkFilter.php';
1557cefb 159require_once 'application/LinkUtils.php';
d1e2f8e5 160require_once 'application/TimeZone.php';
d9d776af 161require_once 'application/Url.php';
ca74886f 162require_once 'application/Utils.php';
dd484b90 163require_once 'application/Config.php';
6fc14d53
A		 164require_once 'application/PluginManager.php';
165require_once 'application/Router.php';
ca74886f 166
d1e2f8e5
V		 167// Ensure the PHP version is supported
168try {
c9cf2715 169 ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION);
2e28269b 170} catch(Exception $exc) {
d1e2f8e5 171 header('Content-Type: text/plain; charset=utf-8');
2e28269b 172 echo $exc->getMessage();
d1e2f8e5
V		 173 exit;
174}
175
06b6660a
A		 176// Force cookie path (but do not change lifetime)
177$cookie = session_get_cookie_params();
178$cookiedir = '';
179if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
180 $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
181}
182// Set default cookie expiration and path.
183session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
184// Set session parameters on server side.
185// If the user does not access any page within this time, his/her session is considered expired.
186define('INACTIVITY_TIMEOUT', 3600); // in seconds.
187// Use cookies to store session.
188ini_set('session.use_cookies', 1);
189// Force cookies for session (phpsessionID forbidden in URL).
190ini_set('session.use_only_cookies', 1);
191// Prevent PHP form using sessionID in URL if cookies are disabled.
192ini_set('session.use_trans_sid', false);
193
06b6660a
A		 194session_name('shaarli');
195// Start session if needed (Some server auto-start sessions).
196if (session_id() == '') {
197 session_start();
198}
199
68bc2135
V		 200// Regenerate session ID if invalid or not defined in cookie.
201if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) {
202 session_regenerate_id(true);
203 $_COOKIE['shaarli'] = session_id();
204}
205
45034273 206include "inc/rain.tpl.class.php"; //include Rain TPL
25f5c59d 207raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory
25f5c59d 208raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory
45034273 209
6fc14d53
A		 210$pluginManager = PluginManager::getInstance();
211$pluginManager->load($GLOBALS['config']['ENABLED_PLUGINS']);
212
45034273
SS		 213ob_start(); // Output buffering for the page cache.
214
215
216// In case stupid admin has left magic_quotes enabled in php.ini:
217if (get_magic_quotes_gpc())
218{
219 function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
220 $_POST = array_map('stripslashes_deep', $_POST);
221 $_GET = array_map('stripslashes_deep', $_GET);
222 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
223}
224
225// Prevent caching on client side or proxy: (yes, it's ugly)
226header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
227header("Cache-Control: no-store, no-cache, must-revalidate");
228header("Cache-Control: post-check=0, pre-check=0", false);
229header("Pragma: no-cache");
230
45034273 231// Handling of old config file which do not have the new parameters.
482d67bd 232if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER));
45034273 233if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
8a80e4fe 234if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']='';
45034273 235if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false;
bb8f712d 236if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false;
ebb2880d 237if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?';
858c5c2b 238// I really need to rewrite Shaarli with a proper configuation manager.
45034273 239
50c9a12e 240if (! is_file($GLOBALS['config']['CONFIG_FILE'])) {
2e28269b
V		 241 // Ensure Shaarli has proper access to its resources
242 $errors = ApplicationUtils::checkResourcePermissions($GLOBALS['config']);
243
244 if ($errors != array()) {
245 $message = '<p>Insufficient permissions:</p><ul>';
246
247 foreach ($errors as $error) {
248 $message .= '<li>'.$error.'</li>';
249 }
250 $message .= '</ul>';
251
252 header('Content-Type: text/html; charset=utf-8');
253 echo $message;
254 exit;
255 }
256
257 // Display the installation form if no existing config is found
50c9a12e
V		 258 install();
259}
8a80e4fe 260
5f85fcd8
A		 261$GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : '';
262$GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : '';
263$GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : '';
8a80e4fe 264
ae00595b
CH		 265// a token depending of deployment salt, user password, and the current ip
266define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt']));
8a80e4fe 267
45034273
SS		 268autoLocale(); // Sniff browser language and set date format accordingly.
269header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling.
270
ff69d87e
FE		 271//==================================================================================================
272// Checking session state (i.e. is the user still logged in)
273//==================================================================================================
274
275function setup_login_state() {
ff69d87e 276 if ($GLOBALS['config']['OPEN_SHAARLI']) {
02ad8fb6 277 return true;
ff69d87e 278 }
02ad8fb6
JP		 279 $userIsLoggedIn = false; // By default, we do not consider the user as logged in;
280 $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
ff69d87e
FE		 281 if (!isset($GLOBALS['login'])) {
282 $userIsLoggedIn = false; // Shaarli is not configured yet.
283 $loginFailure = true;
284 }
285 if (isset($_COOKIE['shaarli_staySignedIn']) &&
286 $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
287 !$loginFailure)
288 {
289 fillSessionInfo();
290 $userIsLoggedIn = true;
291 }
292 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
293 if (empty($_SESSION['uid']) ||
294 ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) ||
295 time() >= $_SESSION['expires_on'])
296 {
297 logout();
298 $userIsLoggedIn = false;
299 $loginFailure = true;
300 }
301 if (!empty($_SESSION['longlastingsession'])) {
302 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
303 }
304 else {
305 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
306 }
307 if (!$loginFailure) {
308 $userIsLoggedIn = true;
309 }
310
311 return $userIsLoggedIn;
312}
ff69d87e 313$userIsLoggedIn = setup_login_state();
45034273 314
45034273 315
45034273
SS		 316// ------------------------------------------------------------------------------------------
317// Sniff browser language to display dates in the right format automatically.
318// (Note that is may not work on your server if the corresponding local is not installed.)
319function autoLocale()
320{
8438a2e5 321 $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
ad6c27b7 322 if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
323 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
8438a2e5
A		 324 if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) {
325 $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : '');
da49603b 326 $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc),
d33c5d4c
M		 327 $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc),
328 $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8',
da49603b 329 $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc);
8438a2e5 330 }
45034273 331 }
8438a2e5 332 setlocale(LC_TIME, $attempts); // LC_TIME = Set local for date/time format only.
45034273
SS		 333}
334
335// ------------------------------------------------------------------------------------------
336// PubSubHubbub protocol support (if enabled) [UNTESTED]
337// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
338if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
339function pubsubhub()
340{
341 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
342 {
343 $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
344 $topic_url = array (
482d67bd
V		 345 index_url($_SERVER).'?do=atom',
346 index_url($_SERVER).'?do=rss'
45034273
SS		 347 );
348 $p->publish_update($topic_url);
349 }
350}
351
352// ------------------------------------------------------------------------------------------
353// Session management
45034273
SS		 354
355// Returns the IP address of the client (Used to prevent session cookie hijacking.)
356function allIPs()
357{
358 $ip = $_SERVER["REMOTE_ADDR"];
359 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
360 if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
361 if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
362 return $ip;
363}
364
ae00595b 365function fillSessionInfo() {
ad6c27b7 366 $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid)
ae00595b
CH		 367 $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked.
368 $_SESSION['username']=$GLOBALS['login'];
369 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration.
370}
371
45034273
SS		 372// Check that user/password is correct.
373function check_auth($login,$password)
374{
375 $hash = sha1($password.$login.$GLOBALS['salt']);
376 if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
377 { // Login/password is correct.
ae00595b 378 fillSessionInfo();
1abe6555 379 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login successful');
45034273
SS		 380 return True;
381 }
1abe6555 382 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login);
45034273
SS		 383 return False;
384}
385
386// Returns true if the user is logged in.
387function isLoggedIn()
388{
ff69d87e
FE		 389 global $userIsLoggedIn;
390 return $userIsLoggedIn;
45034273
SS		 391}
392
393// Force logout.
ff69d87e
FE		 394function logout() {
395 if (isset($_SESSION)) {
396 unset($_SESSION['uid']);
397 unset($_SESSION['ip']);
398 unset($_SESSION['username']);
399 unset($_SESSION['privateonly']);
400 }
401 setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
ae00595b 402}
45034273
SS		 403
404
405// ------------------------------------------------------------------------------------------
406// Brute force protection system
407// Several consecutive failed logins will ban the IP address for 30 minutes.
408if (!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?>");
409include $GLOBALS['config']['IPBANS_FILENAME'];
410// Signal a failed login. Will ban the IP if too many failures:
411function ban_loginFailed()
412{
413 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
414 if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
415 $gb['FAILURES'][$ip]++;
416 if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
417 {
418 $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
1abe6555 419 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
45034273
SS		 420 }
421 $GLOBALS['IPBANS'] = $gb;
422 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
423}
424
425// Signals a successful login. Resets failed login counter.
426function ban_loginOk()
427{
428 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
429 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
430 $GLOBALS['IPBANS'] = $gb;
431 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
432}
433
434// Checks if the user CAN login. If 'true', the user can try to login.
435function ban_canLogin()
436{
437 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
438 if (isset($gb['BANS'][$ip]))
439 {
440 // User is banned. Check if the ban has expired:
441 if ($gb['BANS'][$ip]<=time())
442 { // Ban expired, user can try to login again.
1abe6555 443 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
45034273
SS		 444 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
445 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
446 return true; // Ban has expired, user can login.
447 }
448 return false; // User is banned.
449 }
450 return true; // User is not banned.
451}
452
453// ------------------------------------------------------------------------------------------
454// Process login form: Check if login/password is correct.
455if (isset($_POST['login']))
456{
457 if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
458 if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
ad6c27b7 459 { // Login/password is OK.
45034273
SS		 460 ban_loginOk();
461 // If user wants to keep the session cookie even after the browser closes:
462 if (!empty($_POST['longlastingsession']))
463 {
ae00595b 464 setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
45034273
SS		 465 $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
466 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
2d9fab88
SS		 467
468 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 469 session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
ad6c27b7 470 // Note: Never forget the trailing slash on the cookie path!
45034273
SS		 471 session_regenerate_id(true); // Send cookie with new expiration date to browser.
472 }
473 else // Standard session expiration (=when browser closes)
474 {
2d9fab88 475 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 476 session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
45034273
SS		 477 session_regenerate_id(true);
478 }
f4c84ad7 479
45034273 480 // Optional redirect after login:
5fbabbb9
A		 481 if (isset($_GET['post'])) {
482 $uri = '?post='. urlencode($_GET['post']);
483 foreach (array('description', 'source', 'title') as $param) {
484 if (!empty($_GET[$param])) {
485 $uri .= '&'.$param.'='.urlencode($_GET[$param]);
486 }
487 }
488 header('Location: '. $uri);
489 exit;
490 }
491
492 if (isset($_GET['edit_link'])) {
493 header('Location: ?edit_link='. escape($_GET['edit_link']));
494 exit;
495 }
496
497 if (isset($_POST['returnurl'])) {
498 // Prevent loops over login screen.
499 if (strpos($_POST['returnurl'], 'do=login') === false) {
500 header('Location: '. escape($_POST['returnurl']));
501 exit;
502 }
45034273
SS		 503 }
504 header('Location: ?'); exit;
505 }
506 else
507 {
508 ban_loginFailed();
705f8355 509 $redir = '';
5fbabbb9
A		 510 if (isset($_GET['post'])) {
511 $redir = '?post=' . urlencode($_GET['post']);
512 foreach (array('description', 'source', 'title') as $param) {
513 if (!empty($_GET[$param])) {
514 $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
515 }
516 }
517 }
fe16b01e 518 echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
45034273
SS		 519 exit;
520 }
521}
522
523// ------------------------------------------------------------------------------------------
524// Misc utility functions:
525
ad6c27b7 526// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
45034273
SS		 527function return_bytes($val)
528{
529 $val = trim($val); $last=strtolower($val[strlen($val)-1]);
530 switch($last)
531 {
532 case 'g': $val *= 1024;
533 case 'm': $val *= 1024;
534 case 'k': $val *= 1024;
535 }
536 return $val;
537}
538
539// Try to determine max file size for uploads (POST).
540// Returns an integer (in bytes)
541function getMaxFileSize()
542{
543 $size1 = return_bytes(ini_get('post_max_size'));
544 $size2 = return_bytes(ini_get('upload_max_filesize'));
545 // Return the smaller of two:
546 $maxsize = min($size1,$size2);
ad6c27b7 547 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
45034273
SS		 548 return $maxsize;
549}
550
45034273
SS		 551/* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
552 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
553 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
554function linkdate2timestamp($linkdate)
555{
f5b05925
JD		 556 if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){
557 $Y=$M=$D=$h=$m=$s=0;
558 $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s);
559 return mktime($h,$m,$s,$M,$D,$Y);
560 }
561 return time();
45034273
SS		 562}
563
564/* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
565 (used to build the pubDate attribute in RSS feed.) */
566function linkdate2rfc822($linkdate)
567{
568 return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format.
569}
570
571/* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
572 (used to build the updated tags in ATOM feed.) */
573function linkdate2iso8601($linkdate)
574{
575 return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format.
576}
577
45034273
SS		 578// ------------------------------------------------------------------------------------------
579// Token management for XSRF protection
580// Token should be used in any form which acts on data (create,update,delete,import...).
581if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session.
582
583// Returns a token.
584function getToken()
585{
a1f5a6ec 586 $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string.
45034273
SS		 587 $_SESSION['tokens'][$rnd]=1; // Store it on the server side.
588 return $rnd;
589}
590
ad6c27b7 591// Tells if a token is OK. Using this function will destroy the token.
592// true=token is OK.
45034273
SS		 593function tokenOk($token)
594{
595 if (isset($_SESSION['tokens'][$token]))
596 {
597 unset($_SESSION['tokens'][$token]); // Token is used: destroy it.
ad6c27b7 598 return true; // Token is OK.
45034273
SS		 599 }
600 return false; // Wrong token, or already used.
601}
602
603// ------------------------------------------------------------------------------------------
604/* This class is in charge of building the final page.
605 (This is basically a wrapper around RainTPL which pre-fills some fields.)
606 p = new pageBuilder;
607 p.assign('myfield','myvalue');
608 p.renderPage('mytemplate');
bb8f712d 609
45034273
SS		 610*/
611class pageBuilder
612{
613 private $tpl; // RainTPL template
614
615 function __construct()
616 {
056107ab 617 $this->tpl = false;
bb8f712d 618 }
45034273 619
056107ab
A		 620 /**
621 * Initialize all default tpl tags.
622 */
45034273 623 private function initialize()
bb8f712d
KT		 624 {
625 $this->tpl = new RainTPL;
4407b45f
V		 626
627 try {
628 $version = ApplicationUtils::checkUpdate(
629 shaarli_version,
630 $GLOBALS['config']['UPDATECHECK_FILENAME'],
631 $GLOBALS['config']['UPDATECHECK_INTERVAL'],
632 $GLOBALS['config']['ENABLE_UPDATECHECK'],
633 isLoggedIn(),
634 $GLOBALS['config']['UPDATECHECK_BRANCH']
635 );
636 $this->tpl->assign('newVersion', escape($version));
4a7af975 637 $this->tpl->assign('versionError', '');
4407b45f
V		 638
639 } catch (Exception $exc) {
1abe6555 640 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], $exc->getMessage());
4a7af975 641 $this->tpl->assign('newVersion', '');
4407b45f
V		 642 $this->tpl->assign('versionError', escape($exc->getMessage()));
643 }
644
056107ab
A		 645 $this->tpl->assign('feedurl', escape(index_url($_SERVER)));
646 $searchcrits = ''; // Search criteria
647 if (!empty($_GET['searchtags'])) {
648 $searchcrits .= '&searchtags=' . urlencode($_GET['searchtags']);
649 }
650 elseif (!empty($_GET['searchterm'])) {
651 $searchcrits .= '&searchterm=' . urlencode($_GET['searchterm']);
652 }
653 $this->tpl->assign('searchcrits', $searchcrits);
654 $this->tpl->assign('source', index_url($_SERVER));
655 $this->tpl->assign('version', shaarli_version);
656 $this->tpl->assign('scripturl', index_url($_SERVER));
657 $this->tpl->assign('pagetitle', 'Shaarli');
658 $this->tpl->assign('privateonly', !empty($_SESSION['privateonly'])); // Show only private links?
659 if (!empty($GLOBALS['title'])) {
660 $this->tpl->assign('pagetitle', $GLOBALS['title']);
661 }
662 if (!empty($GLOBALS['titleLink'])) {
663 $this->tpl->assign('titleLink', $GLOBALS['titleLink']);
664 }
665 if (!empty($GLOBALS['pagetitle'])) {
666 $this->tpl->assign('pagetitle', $GLOBALS['pagetitle']);
667 }
668 $this->tpl->assign('shaarlititle', empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title']);
e4b9a763
A		 669 if (!empty($GLOBALS['plugin_errors'])) {
670 $this->tpl->assign('plugin_errors', $GLOBALS['plugin_errors']);
056107ab 671 }
45034273 672 }
bb8f712d 673
45034273
SS		 674 // The following assign() method is basically the same as RainTPL (except that it's lazy)
675 public function assign($what,$where)
676 {
677 if ($this->tpl===false) $this->initialize(); // Lazy initialization
678 $this->tpl->assign($what,$where);
679 }
bb8f712d 680
45034273 681 // Render a specific page (using a template).
ad6c27b7 682 // e.g. pb.renderPage('picwall')
45034273
SS		 683 public function renderPage($page)
684 {
685 if ($this->tpl===false) $this->initialize(); // Lazy initialization
686 $this->tpl->draw($page);
687 }
f4c84ad7
D		 688
689 /**
690 * Render a 404 page (uses the template : tpl/404.tpl)
691 *
692 * usage : $PAGE->render404('The link was deleted')
693 * @param string $message A messate to display what is not found
694 */
695 public function render404($message='The page you are trying to reach does not exist or has been deleted.') {
696 header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
697 $this->tpl->assign('error_message', $message);
698 $this->renderPage('404');
699 }
45034273
SS		 700}
701
45034273 702// ------------------------------------------------------------------------------------------
ad6c27b7 703// Output the last N links in RSS 2.0 format.
45034273
SS		 704function showRSS()
705{
706 header('Content-Type: application/rss+xml; charset=utf-8');
707
2abd3905 708 // $usepermalink : If true, use permalink instead of final link.
ad6c27b7 709 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
ed5b38dd
FE		 710 // Also enabled through a config option
711 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
2abd3905 712
45034273
SS		 713 // Cache system
714 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 715 $cache = new CachedPage(
716 $GLOBALS['config']['PAGECACHE'],
482d67bd 717 page_url($_SERVER),
01e48f26
V		 718 startsWith($query,'do=rss') && !isLoggedIn()
719 );
720 $cached = $cache->cachedVersion();
721 if (! empty($cached)) {
722 echo $cached;
723 exit;
724 }
45034273
SS		 725
726 // If cached was not found (or not usable), then read the database and build the response:
9f15ca9e 727 $LINKSDB = new LinkDB(
9c8752a2 728 $GLOBALS['config']['DATASTORE'],
02ad8fb6 729 isLoggedIn(),
90e5bd65
A		 730 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
731 $GLOBALS['redirector']
9f15ca9e
V		 732 );
733 // Read links from database (and filter private links if user it not logged in).
45034273 734
ad6c27b7 735 // Optionally filter the results:
822bffce
A		 736 if (!empty($_GET['searchterm'])) {
737 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']);
738 }
739 elseif (!empty($_GET['searchtags'])) {
740 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags']));
741 }
742 else {
743 $linksToDisplay = $LINKSDB;
744 }
f3db3774 745
c677013b 746 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 747 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
748 if (!empty($_GET['nb'])) {
749 $nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
c677013b 750 }
45034273 751
822bffce 752 $pageaddr = escape(index_url($_SERVER));
45034273 753 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
5f85fcd8 754 echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>';
45034273
SS		 755 echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
756 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
757 {
758 echo '<!-- PubSubHubbub Discovery -->';
5f85fcd8
A		 759 echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />';
760 echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />';
45034273
SS		 761 echo '<!-- End Of PubSubHubbub Discovery -->';
762 }
763 $i=0;
764 $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
fbd9e527 765 while ($i<$nblinksToDisplay && $i<count($keys))
45034273
SS		 766 {
767 $link = $linksToDisplay[$keys[$i]];
768 $guid = $pageaddr.'?'.smallHash($link['linkdate']);
769 $rfc822date = linkdate2rfc822($link['linkdate']);
5f85fcd8 770 $absurl = $link['url'];
45034273 771 if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
2abd3905 772 if ($usepermalinks===true)
5f85fcd8 773 echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>';
2abd3905 774 else
5f85fcd8
A		 775 echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>';
776 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.escape($rfc822date)."</pubDate>\n";
45034273
SS		 777 if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
778 {
5f85fcd8 779 foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; }
45034273 780 }
2abd3905
SS		 781
782 // Add permalink in description
783 $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
784 // If user wants permalinks first, put the final link in description
785 if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
786 if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
90e5bd65
A		 787 echo '<description><![CDATA['.
788 format_description($link['description'], $GLOBALS['redirector']) .
789 $descriptionlink . ']]></description>' . "\n</item>\n";
45034273
SS		 790 $i++;
791 }
482d67bd 792 echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
45034273
SS		 793
794 $cache->cache(ob_get_contents());
795 ob_end_flush();
796 exit;
797}
798
799// ------------------------------------------------------------------------------------------
ad6c27b7 800// Output the last N links in ATOM format.
45034273
SS		 801function showATOM()
802{
803 header('Content-Type: application/atom+xml; charset=utf-8');
804
2abd3905 805 // $usepermalink : If true, use permalink instead of final link.
ad6c27b7 806 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
ed5b38dd 807 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
2abd3905 808
45034273
SS		 809 // Cache system
810 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 811 $cache = new CachedPage(
812 $GLOBALS['config']['PAGECACHE'],
482d67bd 813 page_url($_SERVER),
01e48f26
V		 814 startsWith($query,'do=atom') && !isLoggedIn()
815 );
816 $cached = $cache->cachedVersion();
817 if (!empty($cached)) {
818 echo $cached;
819 exit;
820 }
45034273 821
01e48f26
V		 822 // If cached was not found (or not usable), then read the database and build the response:
823 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 824 $LINKSDB = new LinkDB(
9c8752a2 825 $GLOBALS['config']['DATASTORE'],
02ad8fb6 826 isLoggedIn(),
90e5bd65
A		 827 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
828 $GLOBALS['redirector']
9f15ca9e 829 );
45034273 830
ad6c27b7 831 // Optionally filter the results:
822bffce
A		 832 if (!empty($_GET['searchterm'])) {
833 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']);
834 }
835 else if (!empty($_GET['searchtags'])) {
836 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags']));
837 }
838 else {
839 $linksToDisplay = $LINKSDB;
840 }
f3db3774 841
c677013b 842 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 843 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
844 if (!empty($_GET['nb'])) {
845 $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
c677013b 846 }
45034273 847
482d67bd 848 $pageaddr=escape(index_url($_SERVER));
45034273
SS		 849 $latestDate = '';
850 $entries='';
851 $i=0;
852 $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
fbd9e527 853 while ($i<$nblinksToDisplay && $i<count($keys))
45034273
SS		 854 {
855 $link = $linksToDisplay[$keys[$i]];
856 $guid = $pageaddr.'?'.smallHash($link['linkdate']);
857 $iso8601date = linkdate2iso8601($link['linkdate']);
858 $latestDate = max($latestDate,$iso8601date);
5f85fcd8 859 $absurl = $link['url'];
45034273 860 if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
5f85fcd8 861 $entries.='<entry><title>'.$link['title'].'</title>';
2abd3905
SS		 862 if ($usepermalinks===true)
863 $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>';
864 else
865 $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>';
5f85fcd8 866 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.escape($iso8601date).'</updated>';
2abd3905
SS		 867
868 // Add permalink in description
5f85fcd8 869 $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
2abd3905 870 // If user wants permalinks first, put the final link in description
5f85fcd8
A		 871 if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
872 if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
2abd3905 873
90e5bd65
A		 874 $entries .= '<content type="html"><![CDATA['.
875 format_description($link['description'], $GLOBALS['redirector']) .
876 $descriptionlink . "]]></content>\n";
45034273
SS		 877 if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification)
878 {
879 foreach(explode(' ',$link['tags']) as $tag)
5f85fcd8 880 { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; }
45034273
SS		 881 }
882 $entries.="</entry>\n";
883 $i++;
884 }
885 $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">';
5f85fcd8
A		 886 $feed.='<title>'.$GLOBALS['title'].'</title>';
887 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>';
482d67bd 888 $feed.='<link rel="self" href="'.escape(server_url($_SERVER).$_SERVER["REQUEST_URI"]).'" />';
45034273
SS		 889 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
890 {
891 $feed.='<!-- PubSubHubbub Discovery -->';
5f85fcd8 892 $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />';
45034273
SS		 893 $feed.='<!-- End Of PubSubHubbub Discovery -->';
894 }
5f85fcd8
A		 895 $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>';
896 $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
45034273 897 $feed.=$entries;
482d67bd 898 $feed.='</feed><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
45034273 899 echo $feed;
bb8f712d 900
45034273
SS		 901 $cache->cache(ob_get_contents());
902 ob_end_flush();
903 exit;
904}
905
906// ------------------------------------------------------------------------------------------
907// Daily RSS feed: 1 RSS entry per day giving all the links on that day.
908// Gives the last 7 days (which have links).
909// This RSS feed cannot be filtered.
f3b8f9f0 910function showDailyRSS() {
45034273
SS		 911 // Cache system
912 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 913 $cache = new CachedPage(
914 $GLOBALS['config']['PAGECACHE'],
482d67bd 915 page_url($_SERVER),
01e48f26
V		 916 startsWith($query,'do=dailyrss') && !isLoggedIn()
917 );
f3b8f9f0
A		 918 $cached = $cache->cachedVersion();
919 if (!empty($cached)) {
920 echo $cached;
921 exit;
922 }
9f15ca9e 923
f3b8f9f0
A		 924 // If cached was not found (or not usable), then read the database and build the response:
925 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 926 $LINKSDB = new LinkDB(
9c8752a2 927 $GLOBALS['config']['DATASTORE'],
02ad8fb6 928 isLoggedIn(),
90e5bd65
A		 929 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
930 $GLOBALS['redirector']
9f15ca9e 931 );
bb8f712d 932
45034273
SS		 933 /* Some Shaarlies may have very few links, so we need to look
934 back in time (rsort()) until we have enough days ($nb_of_days).
935 */
f3b8f9f0
A		 936 $linkdates = array();
937 foreach ($LINKSDB as $linkdate => $value) {
938 $linkdates[] = $linkdate;
939 }
45034273 940 rsort($linkdates);
f3b8f9f0
A		 941 $nb_of_days = 7; // We take 7 days.
942 $today = Date('Ymd');
943 $days = array();
944
945 foreach ($linkdates as $linkdate) {
946 $day = substr($linkdate, 0, 8); // Extract day (without time)
947 if (strcmp($day,$today) < 0) {
948 if (empty($days[$day])) {
949 $days[$day] = array();
950 }
951 $days[$day][] = $linkdate;
952 }
953
954 if (count($days) > $nb_of_days) {
955 break; // Have we collected enough days?
45034273 956 }
45034273 957 }
bb8f712d 958
45034273
SS		 959 // Build the RSS feed.
960 header('Content-Type: application/rss+xml; charset=utf-8');
482d67bd 961 $pageaddr = escape(index_url($_SERVER));
45034273 962 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
f3b8f9f0
A		 963 echo '<channel>';
964 echo '<title>Daily - '. $GLOBALS['title'] . '</title>';
965 echo '<link>'. $pageaddr .'</link>';
966 echo '<description>Daily shared links</description>';
967 echo '<language>en-en</language>';
968 echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
969
970 // For each day.
971 foreach ($days as $day => $linkdates) {
972 $daydate = linkdate2timestamp($day.'_000000'); // Full text date
45034273 973 $rfc822date = linkdate2rfc822($day.'_000000');
482d67bd 974 $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
bb8f712d 975
45034273 976 // Build the HTML body of this RSS entry.
f3b8f9f0
A		 977 $html = '';
978 $href = '';
979 $links = array();
980
45034273 981 // We pre-format some fields for proper output.
f3b8f9f0 982 foreach ($linkdates as $linkdate) {
45034273 983 $l = $LINKSDB[$linkdate];
90e5bd65 984 $l['formatedDescription'] = format_description($l['description'], $GLOBALS['redirector']);
bb8f712d 985 $l['thumbnail'] = thumbnail($l['url']);
a5752e77 986 $l['timestamp'] = linkdate2timestamp($l['linkdate']);
f3b8f9f0 987 if (startsWith($l['url'], '?')) {
482d67bd 988 $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute
f3b8f9f0
A		 989 }
990 $links[$linkdate] = $l;
45034273 991 }
f3b8f9f0 992
45034273 993 // Then build the HTML for this day:
bb8f712d 994 $tpl = new RainTPL;
f3b8f9f0
A		 995 $tpl->assign('title', $GLOBALS['title']);
996 $tpl->assign('daydate', $daydate);
997 $tpl->assign('absurl', $absurl);
998 $tpl->assign('links', $links);
999 $tpl->assign('rfc822date', escape($rfc822date));
1000 $html = $tpl->draw('dailyrss', $return_string=true);
45034273 1001
f3b8f9f0 1002 echo $html . PHP_EOL;
bb8f712d 1003 }
482d67bd 1004 echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
bb8f712d 1005
45034273
SS		 1006 $cache->cache(ob_get_contents());
1007 ob_end_flush();
1008 exit;
1009}
1010
38603b24
A		 1011/**
1012 * Show the 'Daily' page.
1013 *
1014 * @param PageBuilder $pageBuilder Template engine wrapper.
1015 */
1016function showDaily($pageBuilder)
45034273 1017{
9f15ca9e 1018 $LINKSDB = new LinkDB(
9c8752a2 1019 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1020 isLoggedIn(),
90e5bd65
A		 1021 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1022 $GLOBALS['redirector']
9f15ca9e 1023 );
45034273
SS		 1024
1025 $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
1026 if (isset($_GET['day'])) $day=$_GET['day'];
bb8f712d 1027
45034273
SS		 1028 $days = $LINKSDB->days();
1029 $i = array_search($day,$days);
f3db3774 1030 if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
bb8f712d
KT		 1031 $previousday='';
1032 $nextday='';
45034273
SS		 1033 if ($i!==false)
1034 {
f3db3774 1035 if ($i>=1) $previousday=$days[$i-1];
45034273
SS		 1036 if ($i<count($days)-1) $nextday=$days[$i+1];
1037 }
1038
9186ab95 1039 try {
822bffce 1040 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_DAY, $day);
9186ab95
V		 1041 } catch (Exception $exc) {
1042 error_log($exc);
d1e2f8e5 1043 $linksToDisplay = array();
9186ab95
V		 1044 }
1045
45034273
SS		 1046 // We pre-format some fields for proper output.
1047 foreach($linksToDisplay as $key=>$link)
1048 {
5f85fcd8 1049
dd62b9ba
SS		 1050 $taglist = explode(' ',$link['tags']);
1051 uasort($taglist, 'strcasecmp');
1052 $linksToDisplay[$key]['taglist']=$taglist;
90e5bd65 1053 $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $GLOBALS['redirector']);
bb8f712d 1054 $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);
a5752e77 1055 $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']);
45034273 1056 }
bb8f712d 1057
45034273 1058 /* We need to spread the articles on 3 columns.
ad6c27b7 1059 I did not want to use a JavaScript lib like http://masonry.desandro.com/
bb8f712d 1060 so I manually spread entries with a simple method: I roughly evaluate the
45034273
SS		 1061 height of a div according to title and description length.
1062 */
1063 $columns=array(array(),array(),array()); // Entries to display, for each column.
1064 $fill=array(0,0,0); // Rough estimate of columns fill.
1065 foreach($linksToDisplay as $key=>$link)
1066 {
1067 // Roughly estimate length of entry (by counting characters)
1068 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1069 // Description: 836 characters gives roughly 342 pixel height.
ad6c27b7 1070 // This is not perfect, but it's usually OK.
45034273
SS		 1071 $length=strlen($link['title'])+(342*strlen($link['description']))/836;
1072 if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
1073 // Then put in column which is the less filled:
1074 $smallest=min($fill); // find smallest value in array.
1075 $index=array_search($smallest,$fill); // find index of this smallest value.
1076 array_push($columns[$index],$link); // Put entry in this column.
1077 $fill[$index]+=$length;
1078 }
38603b24 1079
6fc14d53
A		 1080 $data = array(
1081 'linksToDisplay' => $linksToDisplay,
1082 'linkcount' => count($LINKSDB),
1083 'cols' => $columns,
1084 'day' => linkdate2timestamp($day.'_000000'),
1085 'previousday' => $previousday,
1086 'nextday' => $nextday,
1087 );
1088 $pluginManager = PluginManager::getInstance();
1089 $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
1090
1091 foreach ($data as $key => $value) {
38603b24 1092 $pageBuilder->assign($key, $value);
6fc14d53
A		 1093 }
1094
38603b24 1095 $pageBuilder->renderPage('daily');
45034273
SS		 1096 exit;
1097}
1098
6fc14d53
A		 1099// Renders the linklist
1100function showLinkList($PAGE, $LINKSDB) {
1101 buildLinkList($PAGE,$LINKSDB); // Compute list of links to display
1102 $PAGE->renderPage('linklist');
1103}
1104
45034273
SS		 1105
1106// ------------------------------------------------------------------------------------------
1107// Render HTML page (according to URL parameters and user rights)
1108function renderPage()
1109{
9f15ca9e 1110 $LINKSDB = new LinkDB(
9c8752a2 1111 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1112 isLoggedIn(),
90e5bd65
A		 1113 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1114 $GLOBALS['redirector']
9f15ca9e 1115 );
45034273 1116
6fc14d53
A		 1117 $PAGE = new pageBuilder;
1118
1119 // Determine which page will be rendered.
1120 $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
1121 $targetPage = Router::findPage($query, $_GET, isLoggedIn());
1122
1123 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
1124 // Then assign generated data to RainTPL.
1125 $common_hooks = array(
1126 'header',
1127 'footer',
1128 'includes',
1129 );
1130 $pluginManager = PluginManager::getInstance();
1131 foreach($common_hooks as $name) {
1132 $plugin_data = array();
1133 $pluginManager->executeHooks('render_' . $name, $plugin_data,
1134 array(
1135 'target' => $targetPage,
1136 'loggedin' => isLoggedIn()
1137 )
1138 );
1139 $PAGE->assign('plugins_' . $name, $plugin_data);
1140 }
1141
45034273 1142 // -------- Display login form.
6fc14d53 1143 if ($targetPage == Router::$PAGE_LOGIN)
45034273
SS		 1144 {
1145 if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
1146 $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful.
45034273 1147 $PAGE->assign('token',$token);
5f85fcd8 1148 $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
45034273
SS		 1149 $PAGE->renderPage('loginform');
1150 exit;
1151 }
1152 // -------- User wants to logout.
1153 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
1154 {
01e48f26 1155 invalidateCaches($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1156 logout();
1157 header('Location: ?');
1158 exit;
1159 }
1160
1161 // -------- Picture wall
6fc14d53 1162 if ($targetPage == Router::$PAGE_PICWALL)
45034273 1163 {
ad6c27b7 1164 // Optionally filter the results:
822bffce
A		 1165 if (!empty($_GET['searchterm'])) {
1166 $links = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $_GET['searchterm']);
1167 }
1168 elseif (! empty($_GET['searchtags'])) {
1169 $links = $LINKSDB->filter(LinkFilter::$FILTER_TAG, trim($_GET['searchtags']));
1170 }
1171 else {
1172 $links = $LINKSDB;
1173 }
f3db3774 1174
822bffce 1175 $linksToDisplay = array();
45034273
SS		 1176
1177 // Get only links which have a thumbnail.
1178 foreach($links as $link)
1179 {
5f85fcd8 1180 $permalink='?'.escape(smallhash($link['linkdate']));
45034273
SS		 1181 $thumb=lazyThumbnail($link['url'],$permalink);
1182 if ($thumb!='') // Only output links which have a thumbnail.
1183 {
1184 $link['thumbnail']=$thumb; // Thumbnail HTML code.
45034273
SS		 1185 $linksToDisplay[]=$link; // Add to array.
1186 }
1187 }
f3db3774 1188
6fc14d53
A		 1189 $data = array(
1190 'linkcount' => count($LINKSDB),
1191 'linksToDisplay' => $linksToDisplay,
1192 );
1193 $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
1194
1195 foreach ($data as $key => $value) {
1196 $PAGE->assign($key, $value);
1197 }
1198
45034273
SS		 1199 $PAGE->renderPage('picwall');
1200 exit;
1201 }
1202
1203 // -------- Tag cloud
6fc14d53 1204 if ($targetPage == Router::$PAGE_TAGCLOUD)
45034273
SS		 1205 {
1206 $tags= $LINKSDB->allTags();
a037ac69 1207
45034273
SS		 1208 // We sort tags alphabetically, then choose a font size according to count.
1209 // First, find max value.
1210 $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value);
1211 ksort($tags);
1212 $tagList=array();
1213 foreach($tags as $key=>$value)
1e3b2740 1214 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
45034273 1215 {
1e3b2740 1216 $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6);
45034273 1217 }
6fc14d53
A		 1218
1219 $data = array(
1220 'linkcount' => count($LINKSDB),
1221 'tags' => $tagList,
1222 );
1223 $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
1224
1225 foreach ($data as $key => $value) {
1226 $PAGE->assign($key, $value);
1227 }
1228
45034273 1229 $PAGE->renderPage('tagcloud');
bb8f712d 1230 exit;
45034273
SS		 1231 }
1232
38603b24
A		 1233 // Daily page.
1234 if ($targetPage == Router::$PAGE_DAILY) {
1235 showDaily($PAGE);
1236 }
1237
8f8113b9
A		 1238 // Display openseach plugin (XML)
1239 if ($targetPage == Router::$PAGE_OPENSEARCH) {
1240 header('Content-Type: application/xml; charset=utf-8');
1241 $PAGE->assign('serverurl', index_url($_SERVER));
1242 $PAGE->renderPage('opensearch');
1243 exit;
1244 }
1245
45034273
SS		 1246 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1247 if (isset($_GET['addtag']))
1248 {
1249 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1250 if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
1251 parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
732e683b 1252
775803a0
A		 1253 // Prevent redirection loop
1254 if (isset($params['addtag'])) {
1255 unset($params['addtag']);
1256 }
1257
732e683b
FE		 1258 // Check if this tag is already in the search query and ignore it if it is.
1259 // Each tag is always separated by a space
6ac95d9c
A		 1260 if (isset($params['searchtags'])) {
1261 $current_tags = explode(' ', $params['searchtags']);
1262 } else {
1263 $current_tags = array();
1264 }
732e683b
FE		 1265 $addtag = true;
1266 foreach ($current_tags as $value) {
1267 if ($value === $_GET['addtag']) {
1268 $addtag = false;
1269 break;
1270 }
1271 }
1272 // Append the tag if necessary
1273 if (empty($params['searchtags'])) {
1274 $params['searchtags'] = trim($_GET['addtag']);
1275 }
1276 else if ($addtag) {
1277 $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
1278 }
1279
45034273
SS		 1280 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1281 header('Location: ?'.http_build_query($params));
1282 exit;
1283 }
1284
1285 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
775803a0 1286 if (isset($_GET['removetag'])) {
45034273 1287 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
775803a0
A		 1288 if (empty($_SERVER['HTTP_REFERER'])) {
1289 header('Location: ?');
1290 exit;
1291 }
1292
1293 // In case browser does not send HTTP_REFERER
1294 parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
1295
1296 // Prevent redirection loop
1297 if (isset($params['removetag'])) {
1298 unset($params['removetag']);
1299 }
1300
1301 if (isset($params['searchtags'])) {
822bffce 1302 $tags = explode(' ', $params['searchtags']);
2c75f8e7
A		 1303 // Remove value from array $tags.
1304 $tags = array_diff($tags, array($_GET['removetag']));
1305 $params['searchtags'] = implode(' ',$tags);
1306
1307 if (empty($params['searchtags'])) {
775803a0 1308 unset($params['searchtags']);
775803a0 1309 }
2c75f8e7 1310
45034273
SS		 1311 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1312 }
1313 header('Location: ?'.http_build_query($params));
1314 exit;
1315 }
1316
1317 // -------- User wants to change the number of links per page (linksperpage=...)
775803a0
A		 1318 if (isset($_GET['linksperpage'])) {
1319 if (is_numeric($_GET['linksperpage'])) {
1320 $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
1321 }
1322
1323 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
45034273
SS		 1324 exit;
1325 }
bb8f712d 1326
45034273 1327 // -------- User wants to see only private links (toggle)
775803a0
A		 1328 if (isset($_GET['privateonly'])) {
1329 if (empty($_SESSION['privateonly'])) {
1330 $_SESSION['privateonly'] = 1; // See only private links
1331 } else {
45034273
SS		 1332 unset($_SESSION['privateonly']); // See all links
1333 }
775803a0
A		 1334
1335 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
45034273
SS		 1336 exit;
1337 }
1338
1339 // -------- Handle other actions allowed for non-logged in users:
1340 if (!isLoggedIn())
1341 {
ad6c27b7 1342 // User tries to post new link but is not logged in:
45034273
SS		 1343 // Show login screen, then redirect to ?post=...
1344 if (isset($_GET['post']))
1345 {
a1795ddc 1346 header('Location: ?do=login&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link.
45034273
SS		 1347 exit;
1348 }
aedc912d
FE		 1349
1350 // Same case as above except that user tried to access ?do=addlink without being logged in
1351 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1352 if (isset($_GET['do']) && $_GET['do'] === 'addlink') {
1353 header('Location: ?do=login&post=');
1354 exit;
1355 }
6fc14d53 1356 showLinkList($PAGE, $LINKSDB);
5fbabbb9
A		 1357 if (isset($_GET['edit_link'])) {
1358 header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
1359 exit;
1360 }
1361
ad6c27b7 1362 exit; // Never remove this one! All operations below are reserved for logged in user.
45034273
SS		 1363 }
1364
1365 // -------- All other functions are reserved for the registered user:
1366
1367 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
6fc14d53 1368 if ($targetPage == Router::$PAGE_TOOLS)
45034273 1369 {
6fc14d53
A		 1370 $data = array(
1371 'linkcount' => count($LINKSDB),
1372 'pageabsaddr' => index_url($_SERVER),
1373 );
1374 $pluginManager->executeHooks('render_tools', $data);
1375
1376 foreach ($data as $key => $value) {
1377 $PAGE->assign($key, $value);
1378 }
1379
45034273
SS		 1380 $PAGE->renderPage('tools');
1381 exit;
1382 }
1383
1384 // -------- User wants to change his/her password.
6fc14d53 1385 if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
45034273
SS		 1386 {
1387 if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.');
1388 if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
1389 {
ad6c27b7 1390 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1391
1392 // Make sure old password is correct.
1393 $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
fe16b01e 1394 if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
45034273
SS		 1395 // Save new password
1396 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
1397 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
dd484b90
A		 1398 try {
1399 writeConfig($GLOBALS, isLoggedIn());
1400 }
1401 catch(Exception $e) {
1402 error_log(
1403 'ERROR while writing config file after changing password.' . PHP_EOL .
1404 $e->getMessage()
1405 );
1406
1407 // TODO: do not handle exceptions/errors in JS.
1408 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1409 exit;
1410 }
fe16b01e 1411 echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
45034273
SS		 1412 exit;
1413 }
1414 else // show the change password form.
1415 {
45034273
SS		 1416 $PAGE->assign('linkcount',count($LINKSDB));
1417 $PAGE->assign('token',getToken());
1418 $PAGE->renderPage('changepassword');
1419 exit;
1420 }
1421 }
1422
1423 // -------- User wants to change configuration
6fc14d53 1424 if ($targetPage == Router::$PAGE_CONFIGURE)
45034273
SS		 1425 {
1426 if (!empty($_POST['title']) )
1427 {
ad6c27b7 1428 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1429 $tz = 'UTC';
1430 if (!empty($_POST['continent']) && !empty($_POST['city']))
d1e2f8e5 1431 if (isTimeZoneValid($_POST['continent'],$_POST['city']))
45034273
SS		 1432 $tz = $_POST['continent'].'/'.$_POST['city'];
1433 $GLOBALS['timezone'] = $tz;
1434 $GLOBALS['title']=$_POST['title'];
ebb2880d 1435 $GLOBALS['titleLink']=$_POST['titleLink'];
45034273
SS		 1436 $GLOBALS['redirector']=$_POST['redirector'];
1437 $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
bb8f712d 1438 $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
ed5b38dd 1439 $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']);
329e0768 1440 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
caee7ff9 1441 $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']);
dd484b90
A		 1442 try {
1443 writeConfig($GLOBALS, isLoggedIn());
1444 }
1445 catch(Exception $e) {
1446 error_log(
1447 'ERROR while writing config file after configuration update.' . PHP_EOL .
1448 $e->getMessage()
1449 );
1450
1451 // TODO: do not handle exceptions/errors in JS.
1452 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1453 exit;
1454 }
fe16b01e 1455 echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
45034273
SS		 1456 exit;
1457 }
1458 else // Show the configuration form.
1459 {
45034273
SS		 1460 $PAGE->assign('linkcount',count($LINKSDB));
1461 $PAGE->assign('token',getToken());
5f85fcd8
A		 1462 $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] );
1463 $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] );
d1e2f8e5
V		 1464 list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']);
1465 $PAGE->assign('timezone_form', $timezone_form);
45034273
SS		 1466 $PAGE->assign('timezone_js',$timezone_js);
1467 $PAGE->renderPage('configure');
1468 exit;
1469 }
1470 }
1471
1472 // -------- User wants to rename a tag or delete it
6fc14d53 1473 if ($targetPage == Router::$PAGE_CHANGETAG)
45034273 1474 {
6a6aa2b9
A		 1475 if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
1476 $PAGE->assign('linkcount', count($LINKSDB));
1477 $PAGE->assign('token', getToken());
bdd1715b 1478 $PAGE->assign('tags', $LINKSDB->allTags());
45034273
SS		 1479 $PAGE->renderPage('changetag');
1480 exit;
1481 }
6a6aa2b9
A		 1482
1483 if (!tokenOk($_POST['token'])) {
1484 die('Wrong token.');
1485 }
45034273
SS		 1486
1487 // Delete a tag:
6a6aa2b9 1488 if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
45034273 1489 $needle=trim($_POST['fromtag']);
822bffce
A		 1490 // True for case-sensitive tag search.
1491 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1492 foreach($linksToAlter as $key=>$value)
1493 {
1494 $tags = explode(' ',trim($value['tags']));
1495 unset($tags[array_search($needle,$tags)]); // Remove tag.
1496 $value['tags']=trim(implode(' ',$tags));
1497 $LINKSDB[$key]=$value;
1498 }
2e28269b 1499 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
fe16b01e 1500 echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
45034273
SS		 1501 exit;
1502 }
1503
1504 // Rename a tag:
6a6aa2b9 1505 if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
45034273 1506 $needle=trim($_POST['fromtag']);
822bffce
A		 1507 // True for case-sensitive tag search.
1508 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1509 foreach($linksToAlter as $key=>$value)
1510 {
1511 $tags = explode(' ',trim($value['tags']));
ad6c27b7 1512 $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value.
45034273
SS		 1513 $value['tags']=trim(implode(' ',$tags));
1514 $LINKSDB[$key]=$value;
1515 }
01e48f26 1516 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk.
fe16b01e 1517 echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
45034273
SS		 1518 exit;
1519 }
1520 }
1521
ad6c27b7 1522 // -------- User wants to add a link without using the bookmarklet: Show form.
6fc14d53 1523 if ($targetPage == Router::$PAGE_ADDLINK)
45034273 1524 {
45034273
SS		 1525 $PAGE->assign('linkcount',count($LINKSDB));
1526 $PAGE->renderPage('addlink');
1527 exit;
1528 }
1529
1530 // -------- User clicked the "Save" button when editing a link: Save link to database.
1531 if (isset($_POST['save_edit']))
1532 {
ad6c27b7 1533 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273 1534 $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces.
781e8aad 1535 $tags = implode(' ', array_unique(explode(' ', $tags))); // Remove duplicates.
45034273 1536 $linkdate=$_POST['lf_linkdate'];
feebc6d4 1537 $url = trim($_POST['lf_url']);
f81139c9 1538 if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:'))
feebc6d4
SS		 1539 $url = 'http://'.$url;
1540 $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0),
45034273
SS		 1541 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags));
1542 if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title.
6fc14d53
A		 1543
1544 $pluginManager->executeHooks('save_link', $link);
1545
45034273 1546 $LINKSDB[$linkdate] = $link;
01e48f26 1547 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk.
45034273
SS		 1548 pubsubhub();
1549
1550 // If we are called from the bookmarklet, we must close the popup:
d01c2342
A		 1551 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1552 echo '<script>self.close();</script>';
1553 exit;
1554 }
1555
1556 $returnurl = !empty($_POST['returnurl']) ? escape($_POST['returnurl']): '?';
775803a0 1557 $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
d01c2342 1558 $location .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
775803a0 1559 header('Location: '. $location); // After saving the link, redirect to the page the user was on.
45034273
SS		 1560 exit;
1561 }
1562
1563 // -------- User clicked the "Cancel" button when editing a link.
1564 if (isset($_POST['cancel_edit']))
1565 {
ad6c27b7 1566 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1567 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
45034273 1568 $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
b342b2a4 1569 $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
775803a0 1570 $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
45034273
SS		 1571 header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
1572 exit;
1573 }
1574
ad6c27b7 1575 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
45034273
SS		 1576 if (isset($_POST['delete_link']))
1577 {
1578 if (!tokenOk($_POST['token'])) die('Wrong token.');
1579 // We do not need to ask for confirmation:
ad6c27b7 1580 // - confirmation is handled by JavaScript
45034273
SS		 1581 // - we are protected from XSRF by the token.
1582 $linkdate=$_POST['lf_linkdate'];
6fc14d53
A		 1583
1584 $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]);
1585
45034273 1586 unset($LINKSDB[$linkdate]);
01e48f26 1587 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk
45034273
SS		 1588
1589 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1590 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
d528433d 1591 // Pick where we're going to redirect
1592 // =============================================================
1593 // Basically, we can't redirect to where we were previously if it was a permalink
1594 // or an edit_link, because it would 404.
1595 // Cases:
1596 // - / : nothing in $_GET, redirect to self
1597 // - /?page : redirect to self
d33c5d4c 1598 // - /?searchterm : redirect to self (there might be other links)
d528433d 1599 // - /?searchtags : redirect to self
1600 // - /permalink : redirect to / (the link does not exist anymore)
1601 // - /?edit_link : redirect to / (the link does not exist anymore)
1602 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1603 // redirect is not satisfied, and only then redirect to /
1604 $location = "?";
1605 // Self redirection
775803a0
A		 1606 if (count($_GET) == 0
1607 || isset($_GET['page'])
1608 || isset($_GET['searchterm'])
1609 || isset($_GET['searchtags'])
1610 ) {
d528433d 1611 if (isset($_POST['returnurl'])) {
1612 $location = $_POST['returnurl']; // Handle redirects given by the form
775803a0
A		 1613 } else {
1614 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
d528433d 1615 }
1616 }
1617
1618 header('Location: ' . $location); // After deleting the link, redirect to appropriate location
45034273
SS		 1619 exit;
1620 }
1621
1622 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1623 if (isset($_GET['edit_link']))
1624 {
1625 $link = $LINKSDB[$_GET['edit_link']]; // Read database
1626 if (!$link) { header('Location: ?'); exit; } // Link not found in database.
6fc14d53
A		 1627 $data = array(
1628 'linkcount' => count($LINKSDB),
1629 'link' => $link,
1630 'link_is_new' => false,
1631 'token' => getToken(),
1632 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1633 'tags' => $LINKSDB->allTags(),
1634 );
1635 $pluginManager->executeHooks('render_editlink', $data);
1636
1637 foreach ($data as $key => $value) {
1638 $PAGE->assign($key, $value);
1639 }
1640
45034273
SS		 1641 $PAGE->renderPage('editlink');
1642 exit;
1643 }
1644
1645 // -------- User want to post a new link: Display link edit form.
d9d776af 1646 if (isset($_GET['post'])) {
1557cefb 1647 $url = cleanup_url(escape($_GET['post']));
45034273
SS		 1648
1649 $link_is_new = false;
9e1724f1 1650 // Check if URL is not already in database (in this case, we will edit the existing link)
ef591e7e 1651 $link = $LINKSDB->getLinkFromUrl($url);
45034273
SS		 1652 if (!$link)
1653 {
9e1724f1 1654 $link_is_new = true;
45034273 1655 $linkdate = strval(date('Ymd_His'));
9e1724f1 1656 // Get title if it was provided in URL (by the bookmarklet).
739dc243 1657 $title = empty($_GET['title']) ? '' : escape($_GET['title']);
9e1724f1 1658 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
739dc243
A		 1659 $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1660 $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1661 $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
26c50346 1662 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
ef591e7e 1663 if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
451314eb 1664 // Short timeout to keep the application responsive
1557cefb 1665 list($headers, $content) = get_http_response($url, 4);
451314eb 1666 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 1667 // Retrieve charset.
1668 $charset = get_charset($headers, $content);
1669 // Extract title.
1670 $title = html_extract_title($content);
1671 // Re-encode title in utf-8 if necessary.
1672 if (! empty($title) && $charset != 'utf-8') {
1673 $title = mb_convert_encoding($title, $charset, 'utf-8');
9e1724f1
A		 1674 }
1675 }
45034273 1676 }
1557cefb 1677
9e1724f1
A		 1678 if ($url == '') {
1679 $url = '?' . smallHash($linkdate);
1680 $title = 'Note: ';
27646ca5 1681 }
1557cefb 1682
9e1724f1
A		 1683 $link = array(
1684 'linkdate' => $linkdate,
1685 'title' => $title,
ef591e7e 1686 'url' => $url,
9e1724f1
A		 1687 'description' => $description,
1688 'tags' => $tags,
1689 'private' => $private
1690 );
45034273
SS		 1691 }
1692
6fc14d53
A		 1693 $data = array(
1694 'linkcount' => count($LINKSDB),
1695 'link' => $link,
1696 'link_is_new' => $link_is_new,
1697 'token' => getToken(), // XSRF protection.
1698 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1699 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1700 'tags' => $LINKSDB->allTags(),
1701 );
1702 $pluginManager->executeHooks('render_editlink', $data);
1703
1704 foreach ($data as $key => $value) {
1705 $PAGE->assign($key, $value);
1706 }
1707
45034273
SS		 1708 $PAGE->renderPage('editlink');
1709 exit;
1710 }
1711
1712 // -------- Export as Netscape Bookmarks HTML file.
6fc14d53 1713 if ($targetPage == Router::$PAGE_EXPORT)
45034273
SS		 1714 {
1715 if (empty($_GET['what']))
1716 {
45034273
SS		 1717 $PAGE->assign('linkcount',count($LINKSDB));
1718 $PAGE->renderPage('export');
1719 exit;
1720 }
1721 $exportWhat=$_GET['what'];
ad6c27b7 1722 if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???');
45034273
SS		 1723
1724 header('Content-Type: text/html; charset=utf-8');
1725 header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html');
1726 $currentdate=date('Y/m/d H:i:s');
1727 echo <<<HTML
1728<!DOCTYPE NETSCAPE-Bookmark-file-1>
1729<!-- This is an automatically generated file.
1730 It will be read and overwritten.
1731 DO NOT EDIT! -->
1732<!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1733<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1734<TITLE>Bookmarks</TITLE>
1735<H1>Bookmarks</H1>
1736HTML;
1737 foreach($LINKSDB as $link)
1738 {
1739 if ($exportWhat=='all' ||
1740 ($exportWhat=='private' && $link['private']!=0) ||
1741 ($exportWhat=='public' && $link['private']==0))
1742 {
5f85fcd8
A		 1743 echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"';
1744 if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"';
1745 echo '>'.$link['title']."</A>\n";
1746 if ($link['description']!='') echo '<DD>'.$link['description']."\n";
45034273
SS		 1747 }
1748 }
1749 exit;
1750 }
1751
1752 // -------- User is uploading a file for import
1753 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload'))
1754 {
1755 // If file is too big, some form field may be missing.
1756 if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
1757 {
1758 $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
5f85fcd8 1759 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>';
45034273
SS		 1760 exit;
1761 }
1762 if (!tokenOk($_POST['token'])) die('Wrong token.');
1763 importFile();
1764 exit;
1765 }
1766
1767 // -------- Show upload/import dialog:
6fc14d53 1768 if ($targetPage == Router::$PAGE_IMPORT)
45034273 1769 {
45034273
SS		 1770 $PAGE->assign('linkcount',count($LINKSDB));
1771 $PAGE->assign('token',getToken());
1772 $PAGE->assign('maxfilesize',getMaxFileSize());
1773 $PAGE->renderPage('import');
1774 exit;
1775 }
1776
dea0ba28
A		 1777 // Plugin administration page
1778 if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1779 $pluginMeta = $pluginManager->getPluginsMeta();
1780
1781 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1782 $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
1783 // Load parameters.
1784 $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $GLOBALS['plugins']);
1785 uasort(
1786 $enabledPlugins,
1787 function($a, $b) { return $a['order'] - $b['order']; }
1788 );
1789 $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
1790
1791 $PAGE->assign('enabledPlugins', $enabledPlugins);
1792 $PAGE->assign('disabledPlugins', $disabledPlugins);
1793 $PAGE->renderPage('pluginsadmin');
1794 exit;
1795 }
1796
1797 // Plugin administration form action
1798 if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1799 try {
1800 if (isset($_POST['parameters_form'])) {
1801 unset($_POST['parameters_form']);
1802 foreach ($_POST as $param => $value) {
1803 $GLOBALS['plugins'][$param] = escape($value);
1804 }
1805 }
1806 else {
1807 $GLOBALS['config']['ENABLED_PLUGINS'] = save_plugin_config($_POST);
1808 }
1809 writeConfig($GLOBALS, isLoggedIn());
1810 }
1811 catch (Exception $e) {
1812 error_log(
1813 'ERROR while saving plugin configuration:.' . PHP_EOL .
1814 $e->getMessage()
1815 );
1816
1817 // TODO: do not handle exceptions/errors in JS.
1818 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=pluginsadmin\';</script>';
1819 exit;
1820 }
1821 header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
1822 exit;
1823 }
1824
45034273 1825 // -------- Otherwise, simply display search form and links:
6fc14d53 1826 showLinkList($PAGE, $LINKSDB);
45034273
SS		 1827 exit;
1828}
1829
1830// -----------------------------------------------------------------------------------------------
1831// Process the import file form.
1832function importFile()
1833{
02ad8fb6 1834 if (!isLoggedIn()) { die('Not allowed.'); }
9f15ca9e 1835 $LINKSDB = new LinkDB(
9c8752a2 1836 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1837 isLoggedIn(),
90e5bd65
A		 1838 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1839 $GLOBALS['redirector']
9f15ca9e 1840 );
45034273
SS		 1841 $filename=$_FILES['filetoupload']['name'];
1842 $filesize=$_FILES['filetoupload']['size'];
1843 $data=file_get_contents($_FILES['filetoupload']['tmp_name']);
ad6c27b7 1844 $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private?
1845 $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones?
45034273
SS		 1846 $import_count=0;
1847
1848 // Sniff file type:
1849 $type='unknown';
1850 if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
1851
1852 // Then import the bookmarks.
1853 if ($type=='netscape')
1854 {
1855 // This is a standard Netscape-style bookmark file.
ad6c27b7 1856 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
45034273
SS		 1857 foreach(explode('<DT>',$data) as $html) // explode is very fast
1858 {
1859 $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
1860 $d = explode('<DD>',$html);
1861 if (startswith($d[0],'<A '))
1862 {
1863 $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
1864 preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title
1865 $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8');
1866 preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes
1867 $raw_add_date=0;
1868 foreach($matches as $m)
1869 {
1870 $attr=$m[1]; $value=$m[2];
1871 if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8');
fc93ae1d
AA		 1872 elseif ($attr=='ADD_DATE')
1873 {
1874 $raw_add_date=intval($value);
1875 if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1876 }
45034273
SS		 1877 elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1);
1878 elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8');
1879 }
1880 if ($link['url']!='')
1881 {
1882 if ($private==1) $link['private']=1;
1883 $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database.
1884 if ($dblink==false)
1885 { // Link not in database, let's import it...
1886 if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE
1887
1888 // Make sure date/time is not already used by another link.
1889 // (Some bookmark files have several different links with the same ADD_DATE)
ad6c27b7 1890 // We increment date by 1 second until we find a date which is not used in DB.
45034273
SS		 1891 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1892 while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly.
1893 $link['linkdate']=date('Ymd_His',$raw_add_date);
1894 $LINKSDB[$link['linkdate']] = $link;
1895 $import_count++;
1896 }
ad6c27b7 1897 else // Link already present in database.
45034273
SS		 1898 {
1899 if ($overwrite)
1900 { // If overwrite is required, we import link data, except date/time.
1901 $link['linkdate']=$dblink['linkdate'];
1902 $LINKSDB[$link['linkdate']] = $link;
1903 $import_count++;
1904 }
1905 }
1906
1907 }
1908 }
1909 }
01e48f26 1910 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273 1911
fe16b01e 1912 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
45034273
SS		 1913 }
1914 else
1915 {
fe16b01e 1916 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
45034273
SS		 1917 }
1918}
1919
1920// -----------------------------------------------------------------------------------------------
1921// Template for the list of links (<div id="linklist">)
1922// This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1923function buildLinkList($PAGE,$LINKSDB)
1924{
1925 // ---- Filter link database according to parameters
822bffce
A		 1926 $search_type = '';
1927 $search_crits = '';
1928 $privateonly = !empty($_SESSION['privateonly']) ? true : false;
1929
1930 // Fulltext search
1931 if (isset($_GET['searchterm'])) {
1932 $search_crits = escape(trim($_GET['searchterm']));
1933 $search_type = LinkFilter::$FILTER_TEXT;
1934 $linksToDisplay = $LINKSDB->filter($search_type, $search_crits, false, $privateonly);
1935 }
1936 // Search by tag
1937 elseif (isset($_GET['searchtags'])) {
1938 $search_crits = explode(' ', escape(trim($_GET['searchtags'])));
1939 $search_type = LinkFilter::$FILTER_TAG;
1940 $linksToDisplay = $LINKSDB->filter($search_type, $search_crits, false, $privateonly);
1941 }
1942 // Detect smallHashes in URL.
1943 elseif (isset($_SERVER['QUERY_STRING'])
1944 && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/', $_SERVER['QUERY_STRING'])) {
1945 $search_type = LinkFilter::$FILTER_HASH;
1946 $search_crits = substr(trim($_SERVER["QUERY_STRING"], '/'), 0, 6);
1947 $linksToDisplay = $LINKSDB->filter($search_type, $search_crits);
1948
1949 if (count($linksToDisplay) == 0) {
f4c84ad7 1950 $PAGE->render404('The link you are trying to reach does not exist or has been deleted.');
45034273
SS		 1951 exit;
1952 }
45034273 1953 }
822bffce
A		 1954 // Otherwise, display without filtering.
1955 else {
1956 $linksToDisplay = $LINKSDB->filter('', '', false, $privateonly);
45034273
SS		 1957 }
1958
1959 // ---- Handle paging.
822bffce
A		 1960 $keys = array();
1961 foreach ($linksToDisplay as $key => $value) {
1962 $keys[] = $key;
1963 }
45034273
SS		 1964
1965 // If there is only a single link, we change on-the-fly the title of the page.
822bffce
A		 1966 if (count($linksToDisplay) == 1) {
1967 $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
1968 }
45034273
SS		 1969
1970 // Select articles according to paging.
822bffce
A		 1971 $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1972 $pagecount = $pagecount == 0 ? 1 : $pagecount;
1973 $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1974 $page = $page < 1 ? 1 : $page;
1975 $page = $page > $pagecount ? $pagecount : $page;
1976 // Start index.
1977 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1978 $end = $i + $_SESSION['LINKS_PER_PAGE'];
1979 $linkDisp = array();
45034273
SS		 1980 while ($i<$end && $i<count($keys))
1981 {
1982 $link = $linksToDisplay[$keys[$i]];
90e5bd65 1983 $link['description'] = format_description($link['description'], $GLOBALS['redirector']);
822bffce
A		 1984 $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
1985 $link['class'] = $link['private'] == 0 ? $classLi : 'private';
1986 $link['timestamp'] = linkdate2timestamp($link['linkdate']);
1987 $taglist = explode(' ', $link['tags']);
a5752e77 1988 uasort($taglist, 'strcasecmp');
822bffce 1989 $link['taglist'] = $taglist;
6fc14d53 1990 $link['shorturl'] = smallHash($link['linkdate']);
822bffce
A		 1991 // Check for both signs of a note: starting with ? and 7 chars long.
1992 if ($link['url'][0] === '?' &&
1993 strlen($link['url']) === 7) {
1994 $link['url'] = index_url($_SERVER) . $link['url'];
b47f515a 1995 }
d33c5d4c 1996
45034273
SS		 1997 $linkDisp[$keys[$i]] = $link;
1998 $i++;
1999 }
bb8f712d 2000
45034273 2001 // Compute paging navigation
822bffce
A		 2002 $searchterm = empty($_GET['searchterm']) ? '' : '&searchterm=' . $_GET['searchterm'];
2003 $searchtags = empty($_GET['searchtags']) ? '' : '&searchtags=' . $_GET['searchtags'];
2004 $previous_page_url = '';
2005 if ($i != count($keys)) {
2006 $previous_page_url = '?page=' . ($page+1) . $searchterm . $searchtags;
2007 }
2008 $next_page_url='';
2009 if ($page>1) {
2010 $next_page_url = '?page=' . ($page-1) . $searchterm . $searchtags;
2011 }
45034273 2012
822bffce
A		 2013 $token = '';
2014 if (isLoggedIn()) {
2015 $token = getToken();
2016 }
bb8f712d 2017
45034273 2018 // Fill all template fields.
6fc14d53
A		 2019 $data = array(
2020 'linkcount' => count($LINKSDB),
2021 'previous_page_url' => $previous_page_url,
2022 'next_page_url' => $next_page_url,
2023 'page_current' => $page,
2024 'page_max' => $pagecount,
2025 'result_count' => count($linksToDisplay),
2026 'search_type' => $search_type,
2027 'search_crits' => $search_crits,
2028 'redirector' => empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'], // Optional redirector URL.
2029 'token' => $token,
2030 'links' => $linkDisp,
2031 'tags' => $LINKSDB->allTags(),
2032 );
18cca483
A		 2033 // FIXME! temporary fix - see #399.
2034 if (!empty($GLOBALS['pagetitle']) && count($linkDisp) == 1) {
2035 $data['pagetitle'] = $GLOBALS['pagetitle'];
2036 }
6fc14d53
A		 2037
2038 $pluginManager = PluginManager::getInstance();
2039 $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
2040
2041 foreach ($data as $key => $value) {
2042 $PAGE->assign($key, $value);
2043 }
2044
45034273
SS		 2045 return;
2046}
2047
2048// Compute the thumbnail for a link.
bb8f712d 2049//
ad6c27b7 2050// With a link to the original URL.
45034273 2051// Understands various services (youtube.com...)
ad6c27b7 2052// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2053// $href = if provided, this URL will be followed instead of $url
2054// Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
2055// Some of them may be missing.
2056// Return an empty array if no thumbnail available.
2057function computeThumbnail($url,$href=false)
2058{
2059 if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
2060 if ($href==false) $href=$url;
2061
2062 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
ad6c27b7 2063 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
45034273
SS		 2064 // ^^^^^^^^^^^ ^^^^^^^^^^^
2065 $domain = parse_url($url,PHP_URL_HOST);
2066 if ($domain=='youtube.com' || $domain=='www.youtube.com')
2067 {
2068 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1a663a0f 2069 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
45034273
SS		 2070 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
2071 }
2072 if ($domain=='youtu.be') // Youtube short links
2073 {
2074 $path = parse_url($url,PHP_URL_PATH);
1a663a0f 2075 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
bb8f712d 2076 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
45034273
SS		 2077 }
2078 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
2079 {
2080 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
2081 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
bb8f712d
KT		 2082 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
2083 }
2084
45034273
SS		 2085 if ($domain=='imgur.com')
2086 {
2087 $path = parse_url($url,PHP_URL_PATH);
2088 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1a663a0f 2089 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
45034273 2090 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1a663a0f 2091 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
45034273
SS		 2092 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2093
1a663a0f 2094 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
45034273
SS		 2095 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2096 }
2097 if ($domain=='i.imgur.com')
2098 {
2099 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1a663a0f 2100 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
45034273
SS		 2101 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2102 }
2103 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
2104 {
2105 if (strpos($url,'dailymotion.com/video/')!==false)
2106 {
2107 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
2108 return array('src'=>$thumburl,
2109 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
2110 }
2111 }
2112 if (endsWith($domain,'.imageshack.us'))
2113 {
2114 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2115 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2116 {
2117 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
2118 return array('src'=>$thumburl,
2119 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
2120 }
2121 }
2122
2123 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2124 // So we deport the thumbnail generation in order not to slow down page generation
2125 // (and we also cache the thumbnail)
2126
2127 if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2128
2129 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
2130 || $domain=='vimeo.com'
2131 || $domain=='ted.com' || endsWith($domain,'.ted.com')
2132 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
2133 )
2134 {
2135 if ($domain=='vimeo.com')
ad6c27b7 2136 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
45034273
SS		 2137 $path = parse_url($url,PHP_URL_PATH);
2138 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
2139 }
2140 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
ad6c27b7 2141 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
45034273
SS		 2142 $path = parse_url($url,PHP_URL_PATH);
2143 if (!preg_match('!/\d+.+?!',$path)) return array();
2144 }
2145 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
ad6c27b7 2146 { // Make sure this TED URL points to a video (/talks/...)
45034273
SS		 2147 $path = parse_url($url,PHP_URL_PATH);
2148 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
2149 }
2150 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2151 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
45034273
SS		 2152 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
2153 }
2154
2155 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2156 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2157 // But using the extension will do.
2158 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2159 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2160 {
2161 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2162 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
bb8f712d 2163 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
45034273
SS		 2164 }
2165 return array(); // No thumbnail.
2166
2167}
2168
2169
2170// Returns the HTML code to display a thumbnail for a link
2171// with a link to the original URL.
2172// Understands various services (youtube.com...)
ad6c27b7 2173// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2174// $href = if provided, this URL will be followed instead of $url
2175// Returns '' if no thumbnail available.
2176function thumbnail($url,$href=false)
2177{
2178 $t = computeThumbnail($url,$href);
2179 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
bb8f712d 2180
5f85fcd8
A		 2181 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
2182 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2183 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2184 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2185 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273
SS		 2186 $html.='></a>';
2187 return $html;
2188}
2189
45034273
SS		 2190// Returns the HTML code to display a thumbnail for a link
2191// for the picture wall (using lazy image loading)
2192// Understands various services (youtube.com...)
ad6c27b7 2193// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2194// $href = if provided, this URL will be followed instead of $url
2195// Returns '' if no thumbnail available.
2196function lazyThumbnail($url,$href=false)
2197{
bb8f712d 2198 $t = computeThumbnail($url,$href);
45034273
SS		 2199 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
2200
5f85fcd8 2201 $html='<a href="'.escape($t['href']).'">';
bb8f712d 2202
34047d23 2203 // Lazy image
5f85fcd8 2204 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
858c5c2b 2205
5f85fcd8
A		 2206 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2207 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2208 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2209 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2210 $html.='>';
bb8f712d 2211
ad6c27b7 2212 // No-JavaScript fallback.
5f85fcd8
A		 2213 $html.='<noscript><img src="'.escape($t['src']).'"';
2214 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2215 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2216 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2217 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2218 $html.='></noscript></a>';
bb8f712d 2219
45034273
SS		 2220 return $html;
2221}
2222
2223
2224// -----------------------------------------------------------------------------------------------
2225// Installation
2226// This function should NEVER be called if the file data/config.php exists.
2227function install()
2228{
2229 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
f6a6ca0a 2230 if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
45034273 2231
f37664a2
SS		 2232
2233 // This part makes sure sessions works correctly.
2234 // (Because on some hosts, session.save_path may not be set correctly,
2235 // or we may not have write access to it.)
2236 if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
2237 { // Step 2: Check if data in session is correct.
2238 echo '<pre>Sessions do not seem to work correctly on your server.<br>';
2239 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
01ec1791 2240 echo 'It currently points to '.session_save_path().'<br>';
2241 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
2242 echo '<br><a href="?">Click to try again.</a></pre>';
f37664a2
SS		 2243 die;
2244 }
2245 if (!isset($_SESSION['session_tested']))
2246 { // Step 1 : Try to store data in session and reload page.
2247 $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
482d67bd 2248 header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
f37664a2
SS		 2249 }
2250 if (isset($_GET['test_session']))
ad6c27b7 2251 { // Step 3: Sessions are OK. Remove test parameter from URL.
482d67bd 2252 header('Location: '.index_url($_SERVER));
f37664a2
SS		 2253 }
2254
2255
45034273
SS		 2256 if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
2257 {
2258 $tz = 'UTC';
d1e2f8e5
V		 2259 if (!empty($_POST['continent']) && !empty($_POST['city'])) {
2260 if (isTimeZoneValid($_POST['continent'], $_POST['city'])) {
45034273 2261 $tz = $_POST['continent'].'/'.$_POST['city'];
d1e2f8e5
V		 2262 }
2263 }
45034273
SS		 2264 $GLOBALS['timezone'] = $tz;
2265 // Everything is ok, let's create config file.
2266 $GLOBALS['login'] = $_POST['setlogin'];
2267 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
2268 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
482d67bd 2269 $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] );
329e0768 2270 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
dd484b90
A		 2271 try {
2272 writeConfig($GLOBALS, isLoggedIn());
2273 }
2274 catch(Exception $e) {
2275 error_log(
2276 'ERROR while writing config file after installation.' . PHP_EOL .
2277 $e->getMessage()
2278 );
2279
2280 // TODO: do not handle exceptions/errors in JS.
2281 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
2282 exit;
2283 }
fe16b01e 2284 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
45034273
SS		 2285 exit;
2286 }
2287
2288 // Display config form:
d1e2f8e5
V		 2289 list($timezone_form, $timezone_js) = generateTimeZoneForm();
2290 $timezone_html = '';
2291 if ($timezone_form != '') {
2292 $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
2293 }
bb8f712d 2294
45034273
SS		 2295 $PAGE = new pageBuilder;
2296 $PAGE->assign('timezone_html',$timezone_html);
2297 $PAGE->assign('timezone_js',$timezone_js);
2298 $PAGE->renderPage('install');
2299 exit;
2300}
2301
ad6c27b7 2302/* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
45034273 2303 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
ad6c27b7 2304 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2305 This function is called by passing the URL:
45034273 2306 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
ad6c27b7 2307 [URL] is the URL of the link (e.g. a flickr page)
45034273
SS		 2308 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2309 The function below will fetch the image from the webservice and store it in the cache.
2310*/
2311function genThumbnail()
2312{
2313 // Make sure the parameters in the URL were generated by us.
2314 $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']);
ad6c27b7 2315 if ($sign!=$_GET['hmac']) die('Naughty boy!');
45034273
SS		 2316
2317 // Let's see if we don't already have the image for this URL in the cache.
2318 $thumbname=hash('sha1',$_GET['url']).'.jpg';
2319 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname))
2320 { // We have the thumbnail, just serve it:
2321 header('Content-Type: image/jpeg');
2322 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname);
2323 return;
2324 }
2325 // We may also serve a blank image (if service did not respond)
2326 $blankname=hash('sha1',$_GET['url']).'.gif';
2327 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname))
2328 {
2329 header('Content-Type: image/gif');
2330 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname);
2331 return;
2332 }
2333
2334 // Otherwise, generate the thumbnail.
2335 $url = $_GET['url'];
2336 $domain = parse_url($url,PHP_URL_HOST);
2337
2338 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
2339 {
ad6c27b7 2340 // Crude replacement to handle new flickr domain policy (They prefer www. now)
45034273
SS		 2341 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
2342
2343 // Is this a link to an image, or to a flickr page ?
2344 $imageurl='';
2345 if (endswith(parse_url($url,PHP_URL_PATH),'.jpg'))
ad6c27b7 2346 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
45034273
SS		 2347 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
2348 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
2349 }
ad6c27b7 2350 else // This is a flickr page (html)
45034273 2351 {
451314eb 2352 // Get the flickr html page.
1557cefb 2353 list($headers, $content) = get_http_response($url, 20);
451314eb 2354 if (strpos($headers[0], '200 OK') !== false)
45034273 2355 {
ad6c27b7 2356 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1557cefb 2357 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
45034273
SS		 2358 if (!empty($matches[1])) $imageurl=$matches[1];
2359
2360 // In albums (and some other pages), the link rel="image_src" is not provided,
2361 // but flickr provides:
2362 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2363 if ($imageurl=='')
2364 {
1557cefb 2365 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
45034273
SS		 2366 if (!empty($matches[1])) $imageurl=$matches[1];
2367 }
2368 }
2369 }
2370
2371 if ($imageurl!='')
2372 { // Let's download the image.
451314eb 2373 // Image is 240x120, so 10 seconds to download should be enough.
1557cefb 2374 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2375 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2376 // Save image to cache.
2377 file_put_contents($GLOBALS['config']['CACHEDIR'].'/' . $thumbname, $content);
45034273 2378 header('Content-Type: image/jpeg');
1557cefb 2379 echo $content;
45034273
SS		 2380 return;
2381 }
2382 }
2383 }
2384
2385 elseif ($domain=='vimeo.com' )
2386 {
2387 // This is more complex: we have to perform a HTTP request, then parse the result.
ad6c27b7 2388 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
45034273 2389 $vid = substr(parse_url($url,PHP_URL_PATH),1);
1557cefb 2390 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
451314eb 2391 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2392 $t = unserialize($content);
45034273
SS		 2393 $imageurl = $t[0]['thumbnail_medium'];
2394 // Then we download the image and serve it to our client.
1557cefb 2395 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2396 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2397 // Save image to cache.
2398 file_put_contents($GLOBALS['config']['CACHEDIR'] . '/' . $thumbname, $content);
45034273 2399 header('Content-Type: image/jpeg');
1557cefb 2400 echo $content;
45034273
SS		 2401 return;
2402 }
2403 }
2404 }
2405
2406 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2407 {
2408 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2409 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2410 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
1557cefb 2411 list($headers, $content) = get_http_response($url, 5);
451314eb 2412 if (strpos($headers[0], '200 OK') !== false) {
45034273 2413 // Extract the link to the thumbnail
1557cefb 2414 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
45034273
SS		 2415 if (!empty($matches[1]))
2416 { // Let's download the image.
2417 $imageurl=$matches[1];
451314eb 2418 // No control on image size, so wait long enough
1557cefb 2419 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2420 if (strpos($headers[0], '200 OK') !== false) {
45034273 2421 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb 2422 file_put_contents($filepath, $content); // Save image to cache.
45034273
SS		 2423 if (resizeImage($filepath))
2424 {
2425 header('Content-Type: image/jpeg');
2426 echo file_get_contents($filepath);
2427 return;
2428 }
2429 }
2430 }
2431 }
2432 }
bb8f712d 2433
45034273
SS		 2434 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2435 {
2436 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2437 // http://xkcd.com/327/
2438 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
1557cefb 2439 list($headers, $content) = get_http_response($url, 5);
451314eb 2440 if (strpos($headers[0], '200 OK') !== false) {
45034273 2441 // Extract the link to the thumbnail
1557cefb 2442 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
45034273
SS		 2443 if (!empty($matches[1]))
2444 { // Let's download the image.
2445 $imageurl=$matches[1];
451314eb 2446 // No control on image size, so wait long enough
1557cefb 2447 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2448 if (strpos($headers[0], '200 OK') !== false) {
45034273 2449 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2450 // Save image to cache.
2451 file_put_contents($filepath, $content);
45034273
SS		 2452 if (resizeImage($filepath))
2453 {
2454 header('Content-Type: image/jpeg');
2455 echo file_get_contents($filepath);
2456 return;
2457 }
2458 }
2459 }
2460 }
bb8f712d 2461 }
45034273
SS		 2462
2463 else
2464 {
2465 // For all other domains, we try to download the image and make a thumbnail.
451314eb 2466 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
1557cefb 2467 list($headers, $content) = get_http_response($url, 30);
451314eb 2468 if (strpos($headers[0], '200 OK') !== false) {
45034273 2469 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2470 // Save image to cache.
2471 file_put_contents($filepath, $content);
45034273
SS		 2472 if (resizeImage($filepath))
2473 {
2474 header('Content-Type: image/jpeg');
2475 echo file_get_contents($filepath);
2476 return;
2477 }
2478 }
2479 }
2480
2481
2482 // Otherwise, return an empty image (8x8 transparent gif)
2483 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
2484 file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
2485 header('Content-Type: image/gif');
2486 echo $blankgif;
2487}
2488
2489// Make a thumbnail of the image (to width: 120 pixels)
2490// Returns true if success, false otherwise.
2491function resizeImage($filepath)
2492{
2493 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2494
2495 // Trick: some stupid people rename GIF as JPEG... or else.
2496 // So we really try to open each image type whatever the extension is.
2497 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2498 $im=false;
2499 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2500 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2501 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2502 if (!$im) return false; // Unable to open image (corrupted or not an image)
2503 $w = imagesx($im);
2504 $h = imagesy($im);
2505 $ystart = 0; $yheight=$h;
2506 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2507 $nw = 120; // Desired width
2508 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2509 // Resize image:
2510 $im2 = imagecreatetruecolor($nw,$nh);
2511 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2512 imageinterlace($im2,true); // For progressive JPEG.
2513 $tempname=$filepath.'_TEMP.jpg';
2514 imagejpeg($im2, $tempname, 90);
2515 imagedestroy($im);
2516 imagedestroy($im2);
9e820906 2517 unlink($filepath);
45034273
SS		 2518 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2519 return true;
2520}
2521
dd484b90
A		 2522try {
2523 mergeDeprecatedConfig($GLOBALS, isLoggedIn());
2524} catch(Exception $e) {
2525 error_log(
2526 'ERROR while merging deprecated options.php file.' . PHP_EOL .
2527 $e->getMessage()
2528 );
2529}
2530
45034273
SS		 2531if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
2532if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
2533if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
2534if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
45034273
SS		 2535if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
2536renderPage();
03545ef6 2537?>
The personal, minimalist, super-fast, database free, bookmarking service - community repo