]> 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 #509 from ArthurHoaro/v0.6.5
[github/shaarli/Shaarli.git] / index.php
CommitLineData
45034273 1<?php
49e2b35b 2/**
797a6f30 3 * Shaarli v0.6.5 - 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'] = $GLOBALS['config']['DATADIR'].'/ipbans.php';
46
510377d2
A		 47// Processed updates file.
48$GLOBALS['config']['UPDATES_FILE'] = $GLOBALS['config']['DATADIR'].'/updates.txt';
49
2e28269b
V		 50// Access log
51$GLOBALS['config']['LOG_FILE'] = $GLOBALS['config']['DATADIR'].'/log.txt';
52
28bb2b74
V		 53// For updates check of Shaarli
54$GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt';
55
7c873f1c
A		 56// Set ENABLE_UPDATECHECK to disabled by default.
57$GLOBALS['config']['ENABLE_UPDATECHECK'] = false;
58
28bb2b74
V		 59// RainTPL cache directory (keep the trailing slash!)
60$GLOBALS['config']['RAINTPL_TMP'] = 'tmp/';
61// Raintpl template directory (keep the trailing slash!)
62$GLOBALS['config']['RAINTPL_TPL'] = 'tpl/';
63
2e28269b 64// Thumbnail cache directory
28bb2b74
V		 65$GLOBALS['config']['CACHEDIR'] = 'cache';
66
67// Atom & RSS feed cache directory
68$GLOBALS['config']['PAGECACHE'] = 'pagecache';
69
28bb2b74
V		 70/*
71 * Global configuration
72 */
73// Ban IP after this many failures
74$GLOBALS['config']['BAN_AFTER'] = 4;
75// Ban duration for IP address after login failures (in seconds)
76$GLOBALS['config']['BAN_DURATION'] = 1800;
77
78// Feed options
79// Enable RSS permalinks by default.
80// This corresponds to the default behavior of shaarli before this was added as an option.
81$GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = true;
82// If true, an extra "ATOM feed" button will be displayed in the toolbar
83$GLOBALS['config']['SHOW_ATOM'] = false;
84
85// Link display options
caee7ff9 86$GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false;
28bb2b74
V		 87$GLOBALS['config']['HIDE_TIMESTAMPS'] = false;
88$GLOBALS['config']['LINKS_PER_PAGE'] = 20;
89
90// Open Shaarli (true): anyone can add/edit/delete links without having to login
91$GLOBALS['config']['OPEN_SHAARLI'] = false;
92
93// Thumbnails
94// Display thumbnails in links
95$GLOBALS['config']['ENABLE_THUMBNAILS'] = true;
96// Store thumbnails in a local cache
97$GLOBALS['config']['ENABLE_LOCALCACHE'] = true;
98
99// Update check frequency for Shaarli. 86400 seconds=24 hours
4407b45f
V		 100$GLOBALS['config']['UPDATECHECK_BRANCH'] = 'stable';
101$GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400;
28bb2b74
V		 102
103
104/*
105 * Plugin configuration
106 *
107 * Warning: order matters!
108 *
109 * These settings may be be overriden in:
110 * - data/config.php
111 * - each plugin's configuration file
112 */
6fc14d53
A		 113//$GLOBALS['config']['ENABLED_PLUGINS'] = array(
114// 'qrcode', 'archiveorg', 'readityourself', 'demo_plugin', 'playvideos',
115// 'wallabag', 'markdown', 'addlink_toolbar',
116//);
6fc14d53
A		 117$GLOBALS['config']['ENABLED_PLUGINS'] = array('qrcode');
118
091e2d13
A		 119// Initialize plugin parameters array.
120$GLOBALS['plugins'] = array();
28bb2b74
V		 121
122// PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
123$GLOBALS['config']['PUBSUBHUB_URL'] = '';
124
125/*
126 * PHP configuration
127 */
797a6f30 128define('shaarli_version', '0.6.5');
28bb2b74 129
ae00595b
CH		 130// http://server.com/x/shaarli --> /shaarli/
131define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0)));
45034273 132
28bb2b74
V		 133// High execution time in case of problematic imports/exports.
134ini_set('max_input_time','60');
135
136// Try to set max upload file size and read
137ini_set('memory_limit', '128M');
45034273
SS		 138ini_set('post_max_size', '16M');
139ini_set('upload_max_filesize', '16M');
45034273 140
28bb2b74
V		 141// See all error except warnings
142error_reporting(E_ALL^E_WARNING);
143// See all errors (for debugging only)
144//error_reporting(-1);
145
146/*
147 * User configuration
148 */
50c9a12e
V		 149if (is_file($GLOBALS['config']['CONFIG_FILE'])) {
150 require_once $GLOBALS['config']['CONFIG_FILE'];
151}
152
ca74886f 153// Shaarli library
2e28269b 154require_once 'application/ApplicationUtils.php';
01e48f26
V		 155require_once 'application/Cache.php';
156require_once 'application/CachedPage.php';
2e28269b 157require_once 'application/FileUtils.php';
451314eb 158require_once 'application/HttpUtils.php';
ca74886f 159require_once 'application/LinkDB.php';
822bffce 160require_once 'application/LinkFilter.php';
1557cefb 161require_once 'application/LinkUtils.php';
d1e2f8e5 162require_once 'application/TimeZone.php';
d9d776af 163require_once 'application/Url.php';
ca74886f 164require_once 'application/Utils.php';
dd484b90 165require_once 'application/Config.php';
6fc14d53
A		 166require_once 'application/PluginManager.php';
167require_once 'application/Router.php';
510377d2 168require_once 'application/Updater.php';
ca74886f 169
d1e2f8e5
V		 170// Ensure the PHP version is supported
171try {
c9cf2715 172 ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION);
2e28269b 173} catch(Exception $exc) {
d1e2f8e5 174 header('Content-Type: text/plain; charset=utf-8');
2e28269b 175 echo $exc->getMessage();
d1e2f8e5
V		 176 exit;
177}
178
06b6660a
A		 179// Force cookie path (but do not change lifetime)
180$cookie = session_get_cookie_params();
181$cookiedir = '';
182if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
183 $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
184}
185// Set default cookie expiration and path.
186session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
187// Set session parameters on server side.
188// If the user does not access any page within this time, his/her session is considered expired.
189define('INACTIVITY_TIMEOUT', 3600); // in seconds.
190// Use cookies to store session.
191ini_set('session.use_cookies', 1);
192// Force cookies for session (phpsessionID forbidden in URL).
193ini_set('session.use_only_cookies', 1);
194// Prevent PHP form using sessionID in URL if cookies are disabled.
195ini_set('session.use_trans_sid', false);
196
06b6660a
A		 197session_name('shaarli');
198// Start session if needed (Some server auto-start sessions).
199if (session_id() == '') {
200 session_start();
201}
202
68bc2135
V		 203// Regenerate session ID if invalid or not defined in cookie.
204if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) {
205 session_regenerate_id(true);
206 $_COOKIE['shaarli'] = session_id();
207}
208
45034273 209include "inc/rain.tpl.class.php"; //include Rain TPL
25f5c59d 210raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory
25f5c59d 211raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory
45034273 212
6fc14d53
A		 213$pluginManager = PluginManager::getInstance();
214$pluginManager->load($GLOBALS['config']['ENABLED_PLUGINS']);
215
45034273
SS		 216ob_start(); // Output buffering for the page cache.
217
218
219// In case stupid admin has left magic_quotes enabled in php.ini:
220if (get_magic_quotes_gpc())
221{
222 function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
223 $_POST = array_map('stripslashes_deep', $_POST);
224 $_GET = array_map('stripslashes_deep', $_GET);
225 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
226}
227
228// Prevent caching on client side or proxy: (yes, it's ugly)
229header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
230header("Cache-Control: no-store, no-cache, must-revalidate");
231header("Cache-Control: post-check=0, pre-check=0", false);
232header("Pragma: no-cache");
233
45034273 234// Handling of old config file which do not have the new parameters.
482d67bd 235if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER));
45034273 236if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
8a80e4fe 237if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']='';
45034273 238if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false;
bb8f712d 239if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false;
ebb2880d 240if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?';
858c5c2b 241// I really need to rewrite Shaarli with a proper configuation manager.
45034273 242
50c9a12e 243if (! is_file($GLOBALS['config']['CONFIG_FILE'])) {
2e28269b
V		 244 // Ensure Shaarli has proper access to its resources
245 $errors = ApplicationUtils::checkResourcePermissions($GLOBALS['config']);
246
247 if ($errors != array()) {
248 $message = '<p>Insufficient permissions:</p><ul>';
249
250 foreach ($errors as $error) {
251 $message .= '<li>'.$error.'</li>';
252 }
253 $message .= '</ul>';
254
255 header('Content-Type: text/html; charset=utf-8');
256 echo $message;
257 exit;
258 }
259
260 // Display the installation form if no existing config is found
50c9a12e
V		 261 install();
262}
8a80e4fe 263
5f85fcd8
A		 264$GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : '';
265$GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : '';
266$GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : '';
8a80e4fe 267
ae00595b
CH		 268// a token depending of deployment salt, user password, and the current ip
269define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt']));
8a80e4fe 270
408def1a
A		 271// Sniff browser language and set date format accordingly.
272if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
273 autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
274}
45034273
SS		 275header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling.
276
ff69d87e
FE		 277//==================================================================================================
278// Checking session state (i.e. is the user still logged in)
279//==================================================================================================
280
281function setup_login_state() {
ff69d87e 282 if ($GLOBALS['config']['OPEN_SHAARLI']) {
02ad8fb6 283 return true;
ff69d87e 284 }
02ad8fb6
JP		 285 $userIsLoggedIn = false; // By default, we do not consider the user as logged in;
286 $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
ff69d87e
FE		 287 if (!isset($GLOBALS['login'])) {
288 $userIsLoggedIn = false; // Shaarli is not configured yet.
289 $loginFailure = true;
290 }
291 if (isset($_COOKIE['shaarli_staySignedIn']) &&
292 $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
293 !$loginFailure)
294 {
295 fillSessionInfo();
296 $userIsLoggedIn = true;
297 }
298 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
299 if (empty($_SESSION['uid']) ||
300 ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) ||
301 time() >= $_SESSION['expires_on'])
302 {
303 logout();
304 $userIsLoggedIn = false;
305 $loginFailure = true;
306 }
307 if (!empty($_SESSION['longlastingsession'])) {
308 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
309 }
310 else {
311 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
312 }
313 if (!$loginFailure) {
314 $userIsLoggedIn = true;
315 }
316
317 return $userIsLoggedIn;
318}
ff69d87e 319$userIsLoggedIn = setup_login_state();
45034273 320
45034273
SS		 321// ------------------------------------------------------------------------------------------
322// PubSubHubbub protocol support (if enabled) [UNTESTED]
323// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
324if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
325function pubsubhub()
326{
327 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
328 {
329 $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
330 $topic_url = array (
482d67bd
V		 331 index_url($_SERVER).'?do=atom',
332 index_url($_SERVER).'?do=rss'
45034273
SS		 333 );
334 $p->publish_update($topic_url);
335 }
336}
337
338// ------------------------------------------------------------------------------------------
339// Session management
45034273
SS		 340
341// Returns the IP address of the client (Used to prevent session cookie hijacking.)
342function allIPs()
343{
344 $ip = $_SERVER["REMOTE_ADDR"];
345 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
346 if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
347 if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
348 return $ip;
349}
350
ae00595b 351function fillSessionInfo() {
ad6c27b7 352 $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid)
ae00595b
CH		 353 $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked.
354 $_SESSION['username']=$GLOBALS['login'];
355 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration.
356}
357
45034273
SS		 358// Check that user/password is correct.
359function check_auth($login,$password)
360{
361 $hash = sha1($password.$login.$GLOBALS['salt']);
362 if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
363 { // Login/password is correct.
ae00595b 364 fillSessionInfo();
1abe6555 365 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login successful');
45034273
SS		 366 return True;
367 }
1abe6555 368 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login);
45034273
SS		 369 return False;
370}
371
372// Returns true if the user is logged in.
373function isLoggedIn()
374{
ff69d87e
FE		 375 global $userIsLoggedIn;
376 return $userIsLoggedIn;
45034273
SS		 377}
378
379// Force logout.
ff69d87e
FE		 380function logout() {
381 if (isset($_SESSION)) {
382 unset($_SESSION['uid']);
383 unset($_SESSION['ip']);
384 unset($_SESSION['username']);
385 unset($_SESSION['privateonly']);
386 }
387 setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
ae00595b 388}
45034273
SS		 389
390
391// ------------------------------------------------------------------------------------------
392// Brute force protection system
393// Several consecutive failed logins will ban the IP address for 30 minutes.
394if (!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?>");
395include $GLOBALS['config']['IPBANS_FILENAME'];
396// Signal a failed login. Will ban the IP if too many failures:
397function ban_loginFailed()
398{
399 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
400 if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
401 $gb['FAILURES'][$ip]++;
402 if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
403 {
404 $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
1abe6555 405 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
45034273
SS		 406 }
407 $GLOBALS['IPBANS'] = $gb;
408 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
409}
410
411// Signals a successful login. Resets failed login counter.
412function ban_loginOk()
413{
414 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
415 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
416 $GLOBALS['IPBANS'] = $gb;
417 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
418}
419
420// Checks if the user CAN login. If 'true', the user can try to login.
421function ban_canLogin()
422{
423 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
424 if (isset($gb['BANS'][$ip]))
425 {
426 // User is banned. Check if the ban has expired:
427 if ($gb['BANS'][$ip]<=time())
428 { // Ban expired, user can try to login again.
1abe6555 429 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
45034273
SS		 430 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
431 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
432 return true; // Ban has expired, user can login.
433 }
434 return false; // User is banned.
435 }
436 return true; // User is not banned.
437}
438
439// ------------------------------------------------------------------------------------------
440// Process login form: Check if login/password is correct.
441if (isset($_POST['login']))
442{
443 if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
444 if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
ad6c27b7 445 { // Login/password is OK.
45034273
SS		 446 ban_loginOk();
447 // If user wants to keep the session cookie even after the browser closes:
448 if (!empty($_POST['longlastingsession']))
449 {
ae00595b 450 setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
45034273
SS		 451 $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
452 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
2d9fab88
SS		 453
454 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 455 session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
ad6c27b7 456 // Note: Never forget the trailing slash on the cookie path!
45034273
SS		 457 session_regenerate_id(true); // Send cookie with new expiration date to browser.
458 }
459 else // Standard session expiration (=when browser closes)
460 {
2d9fab88 461 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 462 session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
45034273
SS		 463 session_regenerate_id(true);
464 }
f4c84ad7 465
45034273 466 // Optional redirect after login:
5fbabbb9
A		 467 if (isset($_GET['post'])) {
468 $uri = '?post='. urlencode($_GET['post']);
469 foreach (array('description', 'source', 'title') as $param) {
470 if (!empty($_GET[$param])) {
471 $uri .= '&'.$param.'='.urlencode($_GET[$param]);
472 }
473 }
474 header('Location: '. $uri);
475 exit;
476 }
477
478 if (isset($_GET['edit_link'])) {
479 header('Location: ?edit_link='. escape($_GET['edit_link']));
480 exit;
481 }
482
483 if (isset($_POST['returnurl'])) {
484 // Prevent loops over login screen.
485 if (strpos($_POST['returnurl'], 'do=login') === false) {
486 header('Location: '. escape($_POST['returnurl']));
487 exit;
488 }
45034273
SS		 489 }
490 header('Location: ?'); exit;
491 }
492 else
493 {
494 ban_loginFailed();
705f8355 495 $redir = '';
5fbabbb9
A		 496 if (isset($_GET['post'])) {
497 $redir = '?post=' . urlencode($_GET['post']);
498 foreach (array('description', 'source', 'title') as $param) {
499 if (!empty($_GET[$param])) {
500 $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
501 }
502 }
503 }
fe16b01e 504 echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
45034273
SS		 505 exit;
506 }
507}
508
509// ------------------------------------------------------------------------------------------
510// Misc utility functions:
511
ad6c27b7 512// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
45034273
SS		 513function return_bytes($val)
514{
515 $val = trim($val); $last=strtolower($val[strlen($val)-1]);
516 switch($last)
517 {
518 case 'g': $val *= 1024;
519 case 'm': $val *= 1024;
520 case 'k': $val *= 1024;
521 }
522 return $val;
523}
524
525// Try to determine max file size for uploads (POST).
526// Returns an integer (in bytes)
527function getMaxFileSize()
528{
529 $size1 = return_bytes(ini_get('post_max_size'));
530 $size2 = return_bytes(ini_get('upload_max_filesize'));
531 // Return the smaller of two:
532 $maxsize = min($size1,$size2);
ad6c27b7 533 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
45034273
SS		 534 return $maxsize;
535}
536
45034273
SS		 537// ------------------------------------------------------------------------------------------
538// Token management for XSRF protection
539// Token should be used in any form which acts on data (create,update,delete,import...).
540if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session.
541
542// Returns a token.
543function getToken()
544{
a1f5a6ec 545 $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string.
45034273
SS		 546 $_SESSION['tokens'][$rnd]=1; // Store it on the server side.
547 return $rnd;
548}
549
ad6c27b7 550// Tells if a token is OK. Using this function will destroy the token.
551// true=token is OK.
45034273
SS		 552function tokenOk($token)
553{
554 if (isset($_SESSION['tokens'][$token]))
555 {
556 unset($_SESSION['tokens'][$token]); // Token is used: destroy it.
ad6c27b7 557 return true; // Token is OK.
45034273
SS		 558 }
559 return false; // Wrong token, or already used.
560}
561
562// ------------------------------------------------------------------------------------------
563/* This class is in charge of building the final page.
564 (This is basically a wrapper around RainTPL which pre-fills some fields.)
565 p = new pageBuilder;
566 p.assign('myfield','myvalue');
567 p.renderPage('mytemplate');
bb8f712d 568
45034273
SS		 569*/
570class pageBuilder
571{
572 private $tpl; // RainTPL template
573
574 function __construct()
575 {
056107ab 576 $this->tpl = false;
bb8f712d 577 }
45034273 578
056107ab
A		 579 /**
580 * Initialize all default tpl tags.
581 */
45034273 582 private function initialize()
bb8f712d
KT		 583 {
584 $this->tpl = new RainTPL;
4407b45f
V		 585
586 try {
587 $version = ApplicationUtils::checkUpdate(
588 shaarli_version,
589 $GLOBALS['config']['UPDATECHECK_FILENAME'],
590 $GLOBALS['config']['UPDATECHECK_INTERVAL'],
591 $GLOBALS['config']['ENABLE_UPDATECHECK'],
592 isLoggedIn(),
593 $GLOBALS['config']['UPDATECHECK_BRANCH']
594 );
595 $this->tpl->assign('newVersion', escape($version));
4a7af975 596 $this->tpl->assign('versionError', '');
4407b45f
V		 597
598 } catch (Exception $exc) {
1abe6555 599 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], $exc->getMessage());
4a7af975 600 $this->tpl->assign('newVersion', '');
4407b45f
V		 601 $this->tpl->assign('versionError', escape($exc->getMessage()));
602 }
603
056107ab
A		 604 $this->tpl->assign('feedurl', escape(index_url($_SERVER)));
605 $searchcrits = ''; // Search criteria
606 if (!empty($_GET['searchtags'])) {
607 $searchcrits .= '&searchtags=' . urlencode($_GET['searchtags']);
608 }
c51fae92 609 if (!empty($_GET['searchterm'])) {
056107ab
A		 610 $searchcrits .= '&searchterm=' . urlencode($_GET['searchterm']);
611 }
612 $this->tpl->assign('searchcrits', $searchcrits);
613 $this->tpl->assign('source', index_url($_SERVER));
614 $this->tpl->assign('version', shaarli_version);
615 $this->tpl->assign('scripturl', index_url($_SERVER));
616 $this->tpl->assign('pagetitle', 'Shaarli');
617 $this->tpl->assign('privateonly', !empty($_SESSION['privateonly'])); // Show only private links?
618 if (!empty($GLOBALS['title'])) {
619 $this->tpl->assign('pagetitle', $GLOBALS['title']);
620 }
621 if (!empty($GLOBALS['titleLink'])) {
622 $this->tpl->assign('titleLink', $GLOBALS['titleLink']);
623 }
624 if (!empty($GLOBALS['pagetitle'])) {
625 $this->tpl->assign('pagetitle', $GLOBALS['pagetitle']);
626 }
627 $this->tpl->assign('shaarlititle', empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title']);
e4b9a763
A		 628 if (!empty($GLOBALS['plugin_errors'])) {
629 $this->tpl->assign('plugin_errors', $GLOBALS['plugin_errors']);
056107ab 630 }
45034273 631 }
bb8f712d 632
45034273
SS		 633 // The following assign() method is basically the same as RainTPL (except that it's lazy)
634 public function assign($what,$where)
635 {
636 if ($this->tpl===false) $this->initialize(); // Lazy initialization
637 $this->tpl->assign($what,$where);
638 }
bb8f712d 639
45034273 640 // Render a specific page (using a template).
ad6c27b7 641 // e.g. pb.renderPage('picwall')
45034273
SS		 642 public function renderPage($page)
643 {
644 if ($this->tpl===false) $this->initialize(); // Lazy initialization
645 $this->tpl->draw($page);
646 }
f4c84ad7
D		 647
648 /**
649 * Render a 404 page (uses the template : tpl/404.tpl)
650 *
651 * usage : $PAGE->render404('The link was deleted')
652 * @param string $message A messate to display what is not found
653 */
654 public function render404($message='The page you are trying to reach does not exist or has been deleted.') {
655 header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
656 $this->tpl->assign('error_message', $message);
657 $this->renderPage('404');
658 }
45034273
SS		 659}
660
45034273 661// ------------------------------------------------------------------------------------------
ad6c27b7 662// Output the last N links in RSS 2.0 format.
45034273
SS		 663function showRSS()
664{
665 header('Content-Type: application/rss+xml; charset=utf-8');
666
2abd3905 667 // $usepermalink : If true, use permalink instead of final link.
ad6c27b7 668 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
ed5b38dd
FE		 669 // Also enabled through a config option
670 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
2abd3905 671
45034273
SS		 672 // Cache system
673 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 674 $cache = new CachedPage(
675 $GLOBALS['config']['PAGECACHE'],
482d67bd 676 page_url($_SERVER),
01e48f26
V		 677 startsWith($query,'do=rss') && !isLoggedIn()
678 );
679 $cached = $cache->cachedVersion();
680 if (! empty($cached)) {
681 echo $cached;
682 exit;
683 }
45034273
SS		 684
685 // If cached was not found (or not usable), then read the database and build the response:
9f15ca9e 686 $LINKSDB = new LinkDB(
9c8752a2 687 $GLOBALS['config']['DATASTORE'],
02ad8fb6 688 isLoggedIn(),
90e5bd65
A		 689 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
690 $GLOBALS['redirector']
9f15ca9e
V		 691 );
692 // Read links from database (and filter private links if user it not logged in).
45034273 693
ad6c27b7 694 // Optionally filter the results:
c51fae92
A		 695 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
696 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
697 if (! empty($searchtags) && ! empty($searchterm)) {
698 $linksToDisplay = $LINKSDB->filter(
699 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
700 array($searchtags, $searchterm)
701 );
822bffce 702 }
c51fae92
A		 703 elseif ($searchtags) {
704 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
705 }
706 elseif ($searchterm) {
707 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 708 }
709 else {
710 $linksToDisplay = $LINKSDB;
711 }
f3db3774 712
c677013b 713 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 714 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
715 if (!empty($_GET['nb'])) {
716 $nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
c677013b 717 }
45034273 718
822bffce 719 $pageaddr = escape(index_url($_SERVER));
45034273 720 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
5f85fcd8 721 echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>';
45034273
SS		 722 echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
723 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
724 {
725 echo '<!-- PubSubHubbub Discovery -->';
5f85fcd8
A		 726 echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />';
727 echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />';
45034273
SS		 728 echo '<!-- End Of PubSubHubbub Discovery -->';
729 }
730 $i=0;
731 $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
fbd9e527 732 while ($i<$nblinksToDisplay && $i<count($keys))
45034273
SS		 733 {
734 $link = $linksToDisplay[$keys[$i]];
735 $guid = $pageaddr.'?'.smallHash($link['linkdate']);
205a4277 736 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
5f85fcd8 737 $absurl = $link['url'];
45034273 738 if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
2abd3905 739 if ($usepermalinks===true)
5f85fcd8 740 echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>';
2abd3905 741 else
5f85fcd8 742 echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>';
205a4277
V		 743 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) {
744 echo '<pubDate>'.escape($date->format(DateTime::RSS))."</pubDate>\n";
745 }
45034273
SS		 746 if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
747 {
5f85fcd8 748 foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; }
45034273 749 }
2abd3905
SS		 750
751 // Add permalink in description
752 $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
753 // If user wants permalinks first, put the final link in description
754 if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
755 if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
90e5bd65
A		 756 echo '<description><![CDATA['.
757 format_description($link['description'], $GLOBALS['redirector']) .
758 $descriptionlink . ']]></description>' . "\n</item>\n";
45034273
SS		 759 $i++;
760 }
482d67bd 761 echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
45034273
SS		 762
763 $cache->cache(ob_get_contents());
764 ob_end_flush();
765 exit;
766}
767
768// ------------------------------------------------------------------------------------------
ad6c27b7 769// Output the last N links in ATOM format.
45034273
SS		 770function showATOM()
771{
772 header('Content-Type: application/atom+xml; charset=utf-8');
773
2abd3905 774 // $usepermalink : If true, use permalink instead of final link.
ad6c27b7 775 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
ed5b38dd 776 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
2abd3905 777
45034273
SS		 778 // Cache system
779 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 780 $cache = new CachedPage(
781 $GLOBALS['config']['PAGECACHE'],
482d67bd 782 page_url($_SERVER),
01e48f26
V		 783 startsWith($query,'do=atom') && !isLoggedIn()
784 );
785 $cached = $cache->cachedVersion();
786 if (!empty($cached)) {
787 echo $cached;
788 exit;
789 }
45034273 790
01e48f26
V		 791 // If cached was not found (or not usable), then read the database and build the response:
792 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 793 $LINKSDB = new LinkDB(
9c8752a2 794 $GLOBALS['config']['DATASTORE'],
02ad8fb6 795 isLoggedIn(),
90e5bd65
A		 796 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
797 $GLOBALS['redirector']
9f15ca9e 798 );
45034273 799
ad6c27b7 800 // Optionally filter the results:
c51fae92
A		 801 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
802 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
803 if (! empty($searchtags) && ! empty($searchterm)) {
804 $linksToDisplay = $LINKSDB->filter(
805 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
806 array($searchtags, $searchterm)
807 );
822bffce 808 }
c51fae92
A		 809 elseif ($searchtags) {
810 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
811 }
812 elseif ($searchterm) {
813 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 814 }
815 else {
816 $linksToDisplay = $LINKSDB;
817 }
f3db3774 818
c677013b 819 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 820 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
821 if (!empty($_GET['nb'])) {
822 $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
c677013b 823 }
45034273 824
482d67bd 825 $pageaddr=escape(index_url($_SERVER));
45034273
SS		 826 $latestDate = '';
827 $entries='';
828 $i=0;
829 $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
fbd9e527 830 while ($i<$nblinksToDisplay && $i<count($keys))
45034273
SS		 831 {
832 $link = $linksToDisplay[$keys[$i]];
833 $guid = $pageaddr.'?'.smallHash($link['linkdate']);
205a4277
V		 834 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
835 $iso8601date = $date->format(DateTime::ISO8601);
836 $latestDate = max($latestDate, $iso8601date);
5f85fcd8 837 $absurl = $link['url'];
45034273 838 if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
5f85fcd8 839 $entries.='<entry><title>'.$link['title'].'</title>';
2abd3905
SS		 840 if ($usepermalinks===true)
841 $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>';
842 else
843 $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>';
205a4277
V		 844
845 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) {
846 $entries.='<updated>'.escape($iso8601date).'</updated>';
847 }
2abd3905
SS		 848
849 // Add permalink in description
5f85fcd8 850 $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
2abd3905 851 // If user wants permalinks first, put the final link in description
5f85fcd8
A		 852 if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
853 if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
2abd3905 854
90e5bd65
A		 855 $entries .= '<content type="html"><![CDATA['.
856 format_description($link['description'], $GLOBALS['redirector']) .
857 $descriptionlink . "]]></content>\n";
45034273
SS		 858 if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification)
859 {
860 foreach(explode(' ',$link['tags']) as $tag)
5f85fcd8 861 { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; }
45034273
SS		 862 }
863 $entries.="</entry>\n";
864 $i++;
865 }
866 $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">';
5f85fcd8
A		 867 $feed.='<title>'.$GLOBALS['title'].'</title>';
868 if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>';
482d67bd 869 $feed.='<link rel="self" href="'.escape(server_url($_SERVER).$_SERVER["REQUEST_URI"]).'" />';
45034273
SS		 870 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
871 {
872 $feed.='<!-- PubSubHubbub Discovery -->';
5f85fcd8 873 $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />';
45034273
SS		 874 $feed.='<!-- End Of PubSubHubbub Discovery -->';
875 }
5f85fcd8
A		 876 $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>';
877 $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
45034273 878 $feed.=$entries;
482d67bd 879 $feed.='</feed><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
45034273 880 echo $feed;
bb8f712d 881
45034273
SS		 882 $cache->cache(ob_get_contents());
883 ob_end_flush();
884 exit;
885}
886
887// ------------------------------------------------------------------------------------------
888// Daily RSS feed: 1 RSS entry per day giving all the links on that day.
889// Gives the last 7 days (which have links).
890// This RSS feed cannot be filtered.
f3b8f9f0 891function showDailyRSS() {
45034273
SS		 892 // Cache system
893 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 894 $cache = new CachedPage(
895 $GLOBALS['config']['PAGECACHE'],
482d67bd 896 page_url($_SERVER),
01e48f26
V		 897 startsWith($query,'do=dailyrss') && !isLoggedIn()
898 );
f3b8f9f0
A		 899 $cached = $cache->cachedVersion();
900 if (!empty($cached)) {
901 echo $cached;
902 exit;
903 }
9f15ca9e 904
f3b8f9f0
A		 905 // If cached was not found (or not usable), then read the database and build the response:
906 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 907 $LINKSDB = new LinkDB(
9c8752a2 908 $GLOBALS['config']['DATASTORE'],
02ad8fb6 909 isLoggedIn(),
90e5bd65
A		 910 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
911 $GLOBALS['redirector']
9f15ca9e 912 );
bb8f712d 913
45034273
SS		 914 /* Some Shaarlies may have very few links, so we need to look
915 back in time (rsort()) until we have enough days ($nb_of_days).
916 */
f3b8f9f0
A		 917 $linkdates = array();
918 foreach ($LINKSDB as $linkdate => $value) {
919 $linkdates[] = $linkdate;
920 }
45034273 921 rsort($linkdates);
f3b8f9f0
A		 922 $nb_of_days = 7; // We take 7 days.
923 $today = Date('Ymd');
924 $days = array();
925
926 foreach ($linkdates as $linkdate) {
927 $day = substr($linkdate, 0, 8); // Extract day (without time)
928 if (strcmp($day,$today) < 0) {
929 if (empty($days[$day])) {
930 $days[$day] = array();
931 }
932 $days[$day][] = $linkdate;
933 }
934
935 if (count($days) > $nb_of_days) {
936 break; // Have we collected enough days?
45034273 937 }
45034273 938 }
bb8f712d 939
45034273
SS		 940 // Build the RSS feed.
941 header('Content-Type: application/rss+xml; charset=utf-8');
482d67bd 942 $pageaddr = escape(index_url($_SERVER));
45034273 943 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
f3b8f9f0
A		 944 echo '<channel>';
945 echo '<title>Daily - '. $GLOBALS['title'] . '</title>';
946 echo '<link>'. $pageaddr .'</link>';
947 echo '<description>Daily shared links</description>';
948 echo '<language>en-en</language>';
949 echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
950
951 // For each day.
952 foreach ($days as $day => $linkdates) {
205a4277 953 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
482d67bd 954 $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
bb8f712d 955
45034273 956 // Build the HTML body of this RSS entry.
f3b8f9f0
A		 957 $html = '';
958 $href = '';
959 $links = array();
960
45034273 961 // We pre-format some fields for proper output.
f3b8f9f0 962 foreach ($linkdates as $linkdate) {
45034273 963 $l = $LINKSDB[$linkdate];
90e5bd65 964 $l['formatedDescription'] = format_description($l['description'], $GLOBALS['redirector']);
bb8f712d 965 $l['thumbnail'] = thumbnail($l['url']);
205a4277
V		 966 $l_date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $l['linkdate']);
967 $l['timestamp'] = $l_date->getTimestamp();
f3b8f9f0 968 if (startsWith($l['url'], '?')) {
482d67bd 969 $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute
f3b8f9f0
A		 970 }
971 $links[$linkdate] = $l;
45034273 972 }
f3b8f9f0 973
45034273 974 // Then build the HTML for this day:
bb8f712d 975 $tpl = new RainTPL;
f3b8f9f0 976 $tpl->assign('title', $GLOBALS['title']);
205a4277 977 $tpl->assign('daydate', $dayDate->getTimestamp());
f3b8f9f0
A		 978 $tpl->assign('absurl', $absurl);
979 $tpl->assign('links', $links);
205a4277 980 $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
f3b8f9f0 981 $html = $tpl->draw('dailyrss', $return_string=true);
45034273 982
f3b8f9f0 983 echo $html . PHP_EOL;
bb8f712d 984 }
482d67bd 985 echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
bb8f712d 986
45034273
SS		 987 $cache->cache(ob_get_contents());
988 ob_end_flush();
989 exit;
990}
991
38603b24
A		 992/**
993 * Show the 'Daily' page.
994 *
995 * @param PageBuilder $pageBuilder Template engine wrapper.
996 */
997function showDaily($pageBuilder)
45034273 998{
9f15ca9e 999 $LINKSDB = new LinkDB(
9c8752a2 1000 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1001 isLoggedIn(),
90e5bd65
A		 1002 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1003 $GLOBALS['redirector']
9f15ca9e 1004 );
45034273
SS		 1005
1006 $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
1007 if (isset($_GET['day'])) $day=$_GET['day'];
bb8f712d 1008
45034273
SS		 1009 $days = $LINKSDB->days();
1010 $i = array_search($day,$days);
f3db3774 1011 if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
bb8f712d
KT		 1012 $previousday='';
1013 $nextday='';
45034273
SS		 1014 if ($i!==false)
1015 {
f3db3774 1016 if ($i>=1) $previousday=$days[$i-1];
45034273
SS		 1017 if ($i<count($days)-1) $nextday=$days[$i+1];
1018 }
1019
9186ab95 1020 try {
822bffce 1021 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_DAY, $day);
9186ab95
V		 1022 } catch (Exception $exc) {
1023 error_log($exc);
d1e2f8e5 1024 $linksToDisplay = array();
9186ab95
V		 1025 }
1026
45034273
SS		 1027 // We pre-format some fields for proper output.
1028 foreach($linksToDisplay as $key=>$link)
1029 {
5f85fcd8 1030
dd62b9ba
SS		 1031 $taglist = explode(' ',$link['tags']);
1032 uasort($taglist, 'strcasecmp');
1033 $linksToDisplay[$key]['taglist']=$taglist;
90e5bd65 1034 $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $GLOBALS['redirector']);
bb8f712d 1035 $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);
205a4277
V		 1036 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
1037 $linksToDisplay[$key]['timestamp'] = $date->getTimestamp();
45034273 1038 }
bb8f712d 1039
45034273 1040 /* We need to spread the articles on 3 columns.
ad6c27b7 1041 I did not want to use a JavaScript lib like http://masonry.desandro.com/
bb8f712d 1042 so I manually spread entries with a simple method: I roughly evaluate the
45034273
SS		 1043 height of a div according to title and description length.
1044 */
1045 $columns=array(array(),array(),array()); // Entries to display, for each column.
1046 $fill=array(0,0,0); // Rough estimate of columns fill.
1047 foreach($linksToDisplay as $key=>$link)
1048 {
1049 // Roughly estimate length of entry (by counting characters)
1050 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1051 // Description: 836 characters gives roughly 342 pixel height.
ad6c27b7 1052 // This is not perfect, but it's usually OK.
45034273
SS		 1053 $length=strlen($link['title'])+(342*strlen($link['description']))/836;
1054 if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
1055 // Then put in column which is the less filled:
1056 $smallest=min($fill); // find smallest value in array.
1057 $index=array_search($smallest,$fill); // find index of this smallest value.
1058 array_push($columns[$index],$link); // Put entry in this column.
1059 $fill[$index]+=$length;
1060 }
38603b24 1061
205a4277 1062 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
6fc14d53
A		 1063 $data = array(
1064 'linksToDisplay' => $linksToDisplay,
1065 'linkcount' => count($LINKSDB),
1066 'cols' => $columns,
205a4277 1067 'day' => $dayDate->getTimestamp(),
6fc14d53
A		 1068 'previousday' => $previousday,
1069 'nextday' => $nextday,
1070 );
1071 $pluginManager = PluginManager::getInstance();
1072 $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
1073
1074 foreach ($data as $key => $value) {
38603b24 1075 $pageBuilder->assign($key, $value);
6fc14d53
A		 1076 }
1077
38603b24 1078 $pageBuilder->renderPage('daily');
45034273
SS		 1079 exit;
1080}
1081
6fc14d53
A		 1082// Renders the linklist
1083function showLinkList($PAGE, $LINKSDB) {
1084 buildLinkList($PAGE,$LINKSDB); // Compute list of links to display
1085 $PAGE->renderPage('linklist');
1086}
1087
45034273
SS		 1088
1089// ------------------------------------------------------------------------------------------
1090// Render HTML page (according to URL parameters and user rights)
1091function renderPage()
1092{
9f15ca9e 1093 $LINKSDB = new LinkDB(
9c8752a2 1094 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1095 isLoggedIn(),
90e5bd65
A		 1096 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1097 $GLOBALS['redirector']
9f15ca9e 1098 );
45034273 1099
510377d2
A		 1100 $updater = new Updater(
1101 read_updates_file($GLOBALS['config']['UPDATES_FILE']),
1102 $GLOBALS,
1103 $LINKSDB,
1104 isLoggedIn()
1105 );
1106 try {
1107 $newUpdates = $updater->update();
1108 if (! empty($newUpdates)) {
1109 write_updates_file(
1110 $GLOBALS['config']['UPDATES_FILE'],
1111 $updater->getDoneUpdates()
1112 );
1113 }
1114 }
1115 catch(Exception $e) {
1116 die($e->getMessage());
1117 }
1118
6fc14d53
A		 1119 $PAGE = new pageBuilder;
1120
1121 // Determine which page will be rendered.
1122 $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
1123 $targetPage = Router::findPage($query, $_GET, isLoggedIn());
1124
1125 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
1126 // Then assign generated data to RainTPL.
1127 $common_hooks = array(
fea5db7a 1128 'includes',
6fc14d53
A		 1129 'header',
1130 'footer',
6fc14d53
A		 1131 );
1132 $pluginManager = PluginManager::getInstance();
1133 foreach($common_hooks as $name) {
1134 $plugin_data = array();
1135 $pluginManager->executeHooks('render_' . $name, $plugin_data,
1136 array(
1137 'target' => $targetPage,
1138 'loggedin' => isLoggedIn()
1139 )
1140 );
1141 $PAGE->assign('plugins_' . $name, $plugin_data);
1142 }
1143
45034273 1144 // -------- Display login form.
6fc14d53 1145 if ($targetPage == Router::$PAGE_LOGIN)
45034273
SS		 1146 {
1147 if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
1148 $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful.
45034273 1149 $PAGE->assign('token',$token);
5f85fcd8 1150 $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
45034273
SS		 1151 $PAGE->renderPage('loginform');
1152 exit;
1153 }
1154 // -------- User wants to logout.
1155 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
1156 {
01e48f26 1157 invalidateCaches($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1158 logout();
1159 header('Location: ?');
1160 exit;
1161 }
1162
1163 // -------- Picture wall
6fc14d53 1164 if ($targetPage == Router::$PAGE_PICWALL)
45034273 1165 {
ad6c27b7 1166 // Optionally filter the results:
c51fae92
A		 1167 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
1168 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
1169 if (! empty($searchtags) && ! empty($searchterm)) {
1170 $links = $LINKSDB->filter(
1171 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
1172 array($searchtags, $searchterm)
1173 );
822bffce 1174 }
c51fae92
A		 1175 elseif ($searchtags) {
1176 $links = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
1177 }
1178 elseif ($searchterm) {
1179 $links = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 1180 }
1181 else {
1182 $links = $LINKSDB;
1183 }
f3db3774 1184
822bffce 1185 $linksToDisplay = array();
45034273
SS		 1186
1187 // Get only links which have a thumbnail.
1188 foreach($links as $link)
1189 {
5f85fcd8 1190 $permalink='?'.escape(smallhash($link['linkdate']));
45034273
SS		 1191 $thumb=lazyThumbnail($link['url'],$permalink);
1192 if ($thumb!='') // Only output links which have a thumbnail.
1193 {
1194 $link['thumbnail']=$thumb; // Thumbnail HTML code.
45034273
SS		 1195 $linksToDisplay[]=$link; // Add to array.
1196 }
1197 }
f3db3774 1198
6fc14d53
A		 1199 $data = array(
1200 'linkcount' => count($LINKSDB),
1201 'linksToDisplay' => $linksToDisplay,
1202 );
1203 $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
1204
1205 foreach ($data as $key => $value) {
1206 $PAGE->assign($key, $value);
1207 }
1208
45034273
SS		 1209 $PAGE->renderPage('picwall');
1210 exit;
1211 }
1212
1213 // -------- Tag cloud
6fc14d53 1214 if ($targetPage == Router::$PAGE_TAGCLOUD)
45034273
SS		 1215 {
1216 $tags= $LINKSDB->allTags();
a037ac69 1217
45034273
SS		 1218 // We sort tags alphabetically, then choose a font size according to count.
1219 // First, find max value.
f1e96a06
A		 1220 $maxcount = 0;
1221 foreach ($tags as $value) {
1222 $maxcount = max($maxcount, $value);
1223 }
1224
1225 // Sort tags alphabetically: case insensitive, support locale if avalaible.
1226 uksort($tags, function($a, $b) {
1227 // Collator is part of PHP intl.
1228 if (class_exists('Collator')) {
7eb0a832
A		 1229 $c = new Collator(setlocale(LC_COLLATE, 0));
1230 if (!intl_is_failure(intl_get_error_code())) {
1231 return $c->compare($a, $b);
1232 }
f1e96a06 1233 }
7eb0a832 1234 return strcasecmp($a, $b);
f1e96a06
A		 1235 });
1236
45034273
SS		 1237 $tagList=array();
1238 foreach($tags as $key=>$value)
f1e96a06 1239 // 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 1240 {
1e3b2740 1241 $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6);
45034273 1242 }
6fc14d53
A		 1243
1244 $data = array(
1245 'linkcount' => count($LINKSDB),
1246 'tags' => $tagList,
1247 );
1248 $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
1249
1250 foreach ($data as $key => $value) {
1251 $PAGE->assign($key, $value);
1252 }
1253
45034273 1254 $PAGE->renderPage('tagcloud');
bb8f712d 1255 exit;
45034273
SS		 1256 }
1257
38603b24
A		 1258 // Daily page.
1259 if ($targetPage == Router::$PAGE_DAILY) {
1260 showDaily($PAGE);
1261 }
1262
8f8113b9
A		 1263 // Display openseach plugin (XML)
1264 if ($targetPage == Router::$PAGE_OPENSEARCH) {
1265 header('Content-Type: application/xml; charset=utf-8');
1266 $PAGE->assign('serverurl', index_url($_SERVER));
1267 $PAGE->renderPage('opensearch');
1268 exit;
1269 }
1270
45034273
SS		 1271 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1272 if (isset($_GET['addtag']))
1273 {
1274 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1275 if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
1276 parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
732e683b 1277
775803a0
A		 1278 // Prevent redirection loop
1279 if (isset($params['addtag'])) {
1280 unset($params['addtag']);
1281 }
1282
732e683b
FE		 1283 // Check if this tag is already in the search query and ignore it if it is.
1284 // Each tag is always separated by a space
6ac95d9c
A		 1285 if (isset($params['searchtags'])) {
1286 $current_tags = explode(' ', $params['searchtags']);
1287 } else {
1288 $current_tags = array();
1289 }
732e683b
FE		 1290 $addtag = true;
1291 foreach ($current_tags as $value) {
1292 if ($value === $_GET['addtag']) {
1293 $addtag = false;
1294 break;
1295 }
1296 }
1297 // Append the tag if necessary
1298 if (empty($params['searchtags'])) {
1299 $params['searchtags'] = trim($_GET['addtag']);
1300 }
1301 else if ($addtag) {
1302 $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
1303 }
1304
45034273
SS		 1305 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1306 header('Location: ?'.http_build_query($params));
1307 exit;
1308 }
1309
1310 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
775803a0 1311 if (isset($_GET['removetag'])) {
45034273 1312 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
775803a0
A		 1313 if (empty($_SERVER['HTTP_REFERER'])) {
1314 header('Location: ?');
1315 exit;
1316 }
1317
1318 // In case browser does not send HTTP_REFERER
1319 parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
1320
1321 // Prevent redirection loop
1322 if (isset($params['removetag'])) {
1323 unset($params['removetag']);
1324 }
1325
1326 if (isset($params['searchtags'])) {
822bffce 1327 $tags = explode(' ', $params['searchtags']);
2c75f8e7
A		 1328 // Remove value from array $tags.
1329 $tags = array_diff($tags, array($_GET['removetag']));
1330 $params['searchtags'] = implode(' ',$tags);
1331
1332 if (empty($params['searchtags'])) {
775803a0 1333 unset($params['searchtags']);
775803a0 1334 }
2c75f8e7 1335
45034273
SS		 1336 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1337 }
1338 header('Location: ?'.http_build_query($params));
1339 exit;
1340 }
1341
1342 // -------- User wants to change the number of links per page (linksperpage=...)
775803a0
A		 1343 if (isset($_GET['linksperpage'])) {
1344 if (is_numeric($_GET['linksperpage'])) {
1345 $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
1346 }
1347
1348 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
45034273
SS		 1349 exit;
1350 }
bb8f712d 1351
45034273 1352 // -------- User wants to see only private links (toggle)
775803a0
A		 1353 if (isset($_GET['privateonly'])) {
1354 if (empty($_SESSION['privateonly'])) {
1355 $_SESSION['privateonly'] = 1; // See only private links
1356 } else {
45034273
SS		 1357 unset($_SESSION['privateonly']); // See all links
1358 }
775803a0
A		 1359
1360 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
45034273
SS		 1361 exit;
1362 }
1363
1364 // -------- Handle other actions allowed for non-logged in users:
1365 if (!isLoggedIn())
1366 {
ad6c27b7 1367 // User tries to post new link but is not logged in:
45034273
SS		 1368 // Show login screen, then redirect to ?post=...
1369 if (isset($_GET['post']))
1370 {
a1795ddc 1371 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($_GET['source']):'')); // Redirect to login page, then back to post link.
45034273
SS		 1372 exit;
1373 }
aedc912d
FE		 1374
1375 // Same case as above except that user tried to access ?do=addlink without being logged in
1376 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1377 if (isset($_GET['do']) && $_GET['do'] === 'addlink') {
1378 header('Location: ?do=login&post=');
1379 exit;
1380 }
6fc14d53 1381 showLinkList($PAGE, $LINKSDB);
5fbabbb9
A		 1382 if (isset($_GET['edit_link'])) {
1383 header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
1384 exit;
1385 }
1386
ad6c27b7 1387 exit; // Never remove this one! All operations below are reserved for logged in user.
45034273
SS		 1388 }
1389
1390 // -------- All other functions are reserved for the registered user:
1391
1392 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
6fc14d53 1393 if ($targetPage == Router::$PAGE_TOOLS)
45034273 1394 {
6fc14d53
A		 1395 $data = array(
1396 'linkcount' => count($LINKSDB),
1397 'pageabsaddr' => index_url($_SERVER),
1398 );
1399 $pluginManager->executeHooks('render_tools', $data);
1400
1401 foreach ($data as $key => $value) {
1402 $PAGE->assign($key, $value);
1403 }
1404
45034273
SS		 1405 $PAGE->renderPage('tools');
1406 exit;
1407 }
1408
1409 // -------- User wants to change his/her password.
6fc14d53 1410 if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
45034273
SS		 1411 {
1412 if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.');
1413 if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
1414 {
ad6c27b7 1415 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1416
1417 // Make sure old password is correct.
1418 $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
fe16b01e 1419 if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
45034273
SS		 1420 // Save new password
1421 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
1422 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
dd484b90
A		 1423 try {
1424 writeConfig($GLOBALS, isLoggedIn());
1425 }
1426 catch(Exception $e) {
1427 error_log(
1428 'ERROR while writing config file after changing password.' . PHP_EOL .
1429 $e->getMessage()
1430 );
1431
1432 // TODO: do not handle exceptions/errors in JS.
1433 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1434 exit;
1435 }
fe16b01e 1436 echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
45034273
SS		 1437 exit;
1438 }
1439 else // show the change password form.
1440 {
45034273
SS		 1441 $PAGE->assign('linkcount',count($LINKSDB));
1442 $PAGE->assign('token',getToken());
1443 $PAGE->renderPage('changepassword');
1444 exit;
1445 }
1446 }
1447
1448 // -------- User wants to change configuration
6fc14d53 1449 if ($targetPage == Router::$PAGE_CONFIGURE)
45034273
SS		 1450 {
1451 if (!empty($_POST['title']) )
1452 {
ad6c27b7 1453 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1454 $tz = 'UTC';
1455 if (!empty($_POST['continent']) && !empty($_POST['city']))
d1e2f8e5 1456 if (isTimeZoneValid($_POST['continent'],$_POST['city']))
45034273
SS		 1457 $tz = $_POST['continent'].'/'.$_POST['city'];
1458 $GLOBALS['timezone'] = $tz;
1459 $GLOBALS['title']=$_POST['title'];
ebb2880d 1460 $GLOBALS['titleLink']=$_POST['titleLink'];
45034273
SS		 1461 $GLOBALS['redirector']=$_POST['redirector'];
1462 $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
bb8f712d 1463 $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
ed5b38dd 1464 $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']);
329e0768 1465 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
caee7ff9 1466 $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']);
dd484b90
A		 1467 try {
1468 writeConfig($GLOBALS, isLoggedIn());
1469 }
1470 catch(Exception $e) {
1471 error_log(
1472 'ERROR while writing config file after configuration update.' . PHP_EOL .
1473 $e->getMessage()
1474 );
1475
1476 // TODO: do not handle exceptions/errors in JS.
1477 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1478 exit;
1479 }
fe16b01e 1480 echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
45034273
SS		 1481 exit;
1482 }
1483 else // Show the configuration form.
1484 {
45034273
SS		 1485 $PAGE->assign('linkcount',count($LINKSDB));
1486 $PAGE->assign('token',getToken());
5f85fcd8
A		 1487 $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] );
1488 $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] );
d1e2f8e5
V		 1489 list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']);
1490 $PAGE->assign('timezone_form', $timezone_form);
45034273
SS		 1491 $PAGE->assign('timezone_js',$timezone_js);
1492 $PAGE->renderPage('configure');
1493 exit;
1494 }
1495 }
1496
1497 // -------- User wants to rename a tag or delete it
6fc14d53 1498 if ($targetPage == Router::$PAGE_CHANGETAG)
45034273 1499 {
6a6aa2b9
A		 1500 if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
1501 $PAGE->assign('linkcount', count($LINKSDB));
1502 $PAGE->assign('token', getToken());
bdd1715b 1503 $PAGE->assign('tags', $LINKSDB->allTags());
45034273
SS		 1504 $PAGE->renderPage('changetag');
1505 exit;
1506 }
6a6aa2b9
A		 1507
1508 if (!tokenOk($_POST['token'])) {
1509 die('Wrong token.');
1510 }
45034273
SS		 1511
1512 // Delete a tag:
6a6aa2b9 1513 if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
45034273 1514 $needle=trim($_POST['fromtag']);
822bffce
A		 1515 // True for case-sensitive tag search.
1516 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1517 foreach($linksToAlter as $key=>$value)
1518 {
1519 $tags = explode(' ',trim($value['tags']));
1520 unset($tags[array_search($needle,$tags)]); // Remove tag.
1521 $value['tags']=trim(implode(' ',$tags));
1522 $LINKSDB[$key]=$value;
1523 }
2e28269b 1524 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
fe16b01e 1525 echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
45034273
SS		 1526 exit;
1527 }
1528
1529 // Rename a tag:
6a6aa2b9 1530 if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
45034273 1531 $needle=trim($_POST['fromtag']);
822bffce
A		 1532 // True for case-sensitive tag search.
1533 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1534 foreach($linksToAlter as $key=>$value)
1535 {
1536 $tags = explode(' ',trim($value['tags']));
ad6c27b7 1537 $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value.
45034273
SS		 1538 $value['tags']=trim(implode(' ',$tags));
1539 $LINKSDB[$key]=$value;
1540 }
01e48f26 1541 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk.
fe16b01e 1542 echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
45034273
SS		 1543 exit;
1544 }
1545 }
1546
ad6c27b7 1547 // -------- User wants to add a link without using the bookmarklet: Show form.
6fc14d53 1548 if ($targetPage == Router::$PAGE_ADDLINK)
45034273 1549 {
45034273
SS		 1550 $PAGE->assign('linkcount',count($LINKSDB));
1551 $PAGE->renderPage('addlink');
1552 exit;
1553 }
1554
1555 // -------- User clicked the "Save" button when editing a link: Save link to database.
1556 if (isset($_POST['save_edit']))
1557 {
5a23950c
A		 1558 // Go away!
1559 if (! tokenOk($_POST['token'])) {
1560 die('Wrong token.');
1561 }
1562 // Remove multiple spaces.
1563 $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags']));
ce354bf1
A		 1564 // Remove first '-' char in tags.
1565 $tags = preg_replace('/(^| )\-/', '$1', $tags);
5a23950c
A		 1566 // Remove duplicates.
1567 $tags = implode(' ', array_unique(explode(' ', $tags)));
1568 $linkdate = $_POST['lf_linkdate'];
feebc6d4 1569 $url = trim($_POST['lf_url']);
5a23950c
A		 1570 if (! startsWith($url, 'http:') && ! startsWith($url, 'https:')
1571 && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:')
1572 && ! startsWith($url, '?') && ! startsWith($url, 'javascript:')
1573 ) {
1574 $url = 'http://' . $url;
1575 }
1576
1577 $link = array(
1578 'title' => trim($_POST['lf_title']),
1579 'url' => $url,
ed853da7 1580 'description' => $_POST['lf_description'],
5a23950c
A		 1581 'private' => (isset($_POST['lf_private']) ? 1 : 0),
1582 'linkdate' => $linkdate,
1583 'tags' => str_replace(',', ' ', $tags)
1584 );
1585 // If title is empty, use the URL as title.
1586 if ($link['title'] == '') {
1587 $link['title'] = $link['url'];
1588 }
6fc14d53
A		 1589
1590 $pluginManager->executeHooks('save_link', $link);
1591
45034273 1592 $LINKSDB[$linkdate] = $link;
5a23950c 1593 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1594 pubsubhub();
1595
1596 // If we are called from the bookmarklet, we must close the popup:
d01c2342
A		 1597 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1598 echo '<script>self.close();</script>';
1599 exit;
1600 }
1601
fd50e14c 1602 $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
775803a0 1603 $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
5a23950c
A		 1604 // Scroll to the link which has been edited.
1605 $location .= '#' . smallHash($_POST['lf_linkdate']);
1606 // After saving the link, redirect to the page the user was on.
1607 header('Location: '. $location);
45034273
SS		 1608 exit;
1609 }
1610
1611 // -------- User clicked the "Cancel" button when editing a link.
1612 if (isset($_POST['cancel_edit']))
1613 {
ad6c27b7 1614 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1615 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
45034273 1616 $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
b342b2a4 1617 $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
775803a0 1618 $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
45034273
SS		 1619 header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
1620 exit;
1621 }
1622
ad6c27b7 1623 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
45034273
SS		 1624 if (isset($_POST['delete_link']))
1625 {
1626 if (!tokenOk($_POST['token'])) die('Wrong token.');
1627 // We do not need to ask for confirmation:
ad6c27b7 1628 // - confirmation is handled by JavaScript
45034273
SS		 1629 // - we are protected from XSRF by the token.
1630 $linkdate=$_POST['lf_linkdate'];
6fc14d53
A		 1631
1632 $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]);
1633
45034273 1634 unset($LINKSDB[$linkdate]);
01e48f26 1635 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk
45034273
SS		 1636
1637 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1638 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
d528433d 1639 // Pick where we're going to redirect
1640 // =============================================================
1641 // Basically, we can't redirect to where we were previously if it was a permalink
1642 // or an edit_link, because it would 404.
1643 // Cases:
1644 // - / : nothing in $_GET, redirect to self
1645 // - /?page : redirect to self
d33c5d4c 1646 // - /?searchterm : redirect to self (there might be other links)
d528433d 1647 // - /?searchtags : redirect to self
1648 // - /permalink : redirect to / (the link does not exist anymore)
1649 // - /?edit_link : redirect to / (the link does not exist anymore)
1650 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1651 // redirect is not satisfied, and only then redirect to /
1652 $location = "?";
1653 // Self redirection
775803a0
A		 1654 if (count($_GET) == 0
1655 || isset($_GET['page'])
1656 || isset($_GET['searchterm'])
1657 || isset($_GET['searchtags'])
1658 ) {
d528433d 1659 if (isset($_POST['returnurl'])) {
1660 $location = $_POST['returnurl']; // Handle redirects given by the form
775803a0
A		 1661 } else {
1662 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
d528433d 1663 }
1664 }
1665
1666 header('Location: ' . $location); // After deleting the link, redirect to appropriate location
45034273
SS		 1667 exit;
1668 }
1669
1670 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1671 if (isset($_GET['edit_link']))
1672 {
1673 $link = $LINKSDB[$_GET['edit_link']]; // Read database
1674 if (!$link) { header('Location: ?'); exit; } // Link not found in database.
6fc14d53
A		 1675 $data = array(
1676 'linkcount' => count($LINKSDB),
1677 'link' => $link,
1678 'link_is_new' => false,
1679 'token' => getToken(),
1680 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1681 'tags' => $LINKSDB->allTags(),
1682 );
1683 $pluginManager->executeHooks('render_editlink', $data);
1684
1685 foreach ($data as $key => $value) {
1686 $PAGE->assign($key, $value);
1687 }
1688
45034273
SS		 1689 $PAGE->renderPage('editlink');
1690 exit;
1691 }
1692
1693 // -------- User want to post a new link: Display link edit form.
d9d776af 1694 if (isset($_GET['post'])) {
1557cefb 1695 $url = cleanup_url(escape($_GET['post']));
45034273
SS		 1696
1697 $link_is_new = false;
9e1724f1 1698 // Check if URL is not already in database (in this case, we will edit the existing link)
ef591e7e 1699 $link = $LINKSDB->getLinkFromUrl($url);
45034273
SS		 1700 if (!$link)
1701 {
9e1724f1 1702 $link_is_new = true;
45034273 1703 $linkdate = strval(date('Ymd_His'));
9e1724f1 1704 // Get title if it was provided in URL (by the bookmarklet).
739dc243 1705 $title = empty($_GET['title']) ? '' : escape($_GET['title']);
9e1724f1 1706 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
739dc243
A		 1707 $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1708 $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1709 $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
26c50346 1710 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
ef591e7e 1711 if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
451314eb 1712 // Short timeout to keep the application responsive
1557cefb 1713 list($headers, $content) = get_http_response($url, 4);
451314eb 1714 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 1715 // Retrieve charset.
1716 $charset = get_charset($headers, $content);
1717 // Extract title.
1718 $title = html_extract_title($content);
1719 // Re-encode title in utf-8 if necessary.
1720 if (! empty($title) && $charset != 'utf-8') {
1721 $title = mb_convert_encoding($title, $charset, 'utf-8');
9e1724f1
A		 1722 }
1723 }
45034273 1724 }
1557cefb 1725
9e1724f1
A		 1726 if ($url == '') {
1727 $url = '?' . smallHash($linkdate);
1728 $title = 'Note: ';
27646ca5 1729 }
1557cefb 1730
9e1724f1
A		 1731 $link = array(
1732 'linkdate' => $linkdate,
1733 'title' => $title,
ef591e7e 1734 'url' => $url,
9e1724f1
A		 1735 'description' => $description,
1736 'tags' => $tags,
1737 'private' => $private
1738 );
45034273
SS		 1739 }
1740
6fc14d53
A		 1741 $data = array(
1742 'linkcount' => count($LINKSDB),
1743 'link' => $link,
1744 'link_is_new' => $link_is_new,
1745 'token' => getToken(), // XSRF protection.
1746 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1747 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1748 'tags' => $LINKSDB->allTags(),
1749 );
1750 $pluginManager->executeHooks('render_editlink', $data);
1751
1752 foreach ($data as $key => $value) {
1753 $PAGE->assign($key, $value);
1754 }
1755
45034273
SS		 1756 $PAGE->renderPage('editlink');
1757 exit;
1758 }
1759
1760 // -------- Export as Netscape Bookmarks HTML file.
6fc14d53 1761 if ($targetPage == Router::$PAGE_EXPORT)
45034273
SS		 1762 {
1763 if (empty($_GET['what']))
1764 {
45034273
SS		 1765 $PAGE->assign('linkcount',count($LINKSDB));
1766 $PAGE->renderPage('export');
1767 exit;
1768 }
1769 $exportWhat=$_GET['what'];
ad6c27b7 1770 if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???');
45034273
SS		 1771
1772 header('Content-Type: text/html; charset=utf-8');
1773 header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html');
1774 $currentdate=date('Y/m/d H:i:s');
1775 echo <<<HTML
1776<!DOCTYPE NETSCAPE-Bookmark-file-1>
1777<!-- This is an automatically generated file.
1778 It will be read and overwritten.
1779 DO NOT EDIT! -->
1780<!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1781<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1782<TITLE>Bookmarks</TITLE>
1783<H1>Bookmarks</H1>
1784HTML;
1785 foreach($LINKSDB as $link)
1786 {
1787 if ($exportWhat=='all' ||
1788 ($exportWhat=='private' && $link['private']!=0) ||
1789 ($exportWhat=='public' && $link['private']==0))
1790 {
205a4277
V		 1791 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
1792 echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.$date->getTimestamp().'" PRIVATE="'.$link['private'].'"';
5f85fcd8
A		 1793 if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"';
1794 echo '>'.$link['title']."</A>\n";
1795 if ($link['description']!='') echo '<DD>'.$link['description']."\n";
45034273
SS		 1796 }
1797 }
1798 exit;
1799 }
1800
1801 // -------- User is uploading a file for import
1802 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload'))
1803 {
1804 // If file is too big, some form field may be missing.
1805 if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
1806 {
1807 $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
5f85fcd8 1808 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>';
45034273
SS		 1809 exit;
1810 }
1811 if (!tokenOk($_POST['token'])) die('Wrong token.');
1812 importFile();
1813 exit;
1814 }
1815
1816 // -------- Show upload/import dialog:
6fc14d53 1817 if ($targetPage == Router::$PAGE_IMPORT)
45034273 1818 {
45034273
SS		 1819 $PAGE->assign('linkcount',count($LINKSDB));
1820 $PAGE->assign('token',getToken());
1821 $PAGE->assign('maxfilesize',getMaxFileSize());
1822 $PAGE->renderPage('import');
1823 exit;
1824 }
1825
dea0ba28
A		 1826 // Plugin administration page
1827 if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1828 $pluginMeta = $pluginManager->getPluginsMeta();
1829
1830 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1831 $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
1832 // Load parameters.
1833 $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $GLOBALS['plugins']);
1834 uasort(
1835 $enabledPlugins,
1836 function($a, $b) { return $a['order'] - $b['order']; }
1837 );
1838 $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
1839
1840 $PAGE->assign('enabledPlugins', $enabledPlugins);
1841 $PAGE->assign('disabledPlugins', $disabledPlugins);
1842 $PAGE->renderPage('pluginsadmin');
1843 exit;
1844 }
1845
1846 // Plugin administration form action
1847 if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1848 try {
1849 if (isset($_POST['parameters_form'])) {
1850 unset($_POST['parameters_form']);
1851 foreach ($_POST as $param => $value) {
1852 $GLOBALS['plugins'][$param] = escape($value);
1853 }
1854 }
1855 else {
1856 $GLOBALS['config']['ENABLED_PLUGINS'] = save_plugin_config($_POST);
1857 }
1858 writeConfig($GLOBALS, isLoggedIn());
1859 }
1860 catch (Exception $e) {
1861 error_log(
1862 'ERROR while saving plugin configuration:.' . PHP_EOL .
1863 $e->getMessage()
1864 );
1865
1866 // TODO: do not handle exceptions/errors in JS.
59edea42 1867 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>';
dea0ba28
A		 1868 exit;
1869 }
1870 header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
1871 exit;
1872 }
1873
45034273 1874 // -------- Otherwise, simply display search form and links:
6fc14d53 1875 showLinkList($PAGE, $LINKSDB);
45034273
SS		 1876 exit;
1877}
1878
1879// -----------------------------------------------------------------------------------------------
1880// Process the import file form.
1881function importFile()
1882{
02ad8fb6 1883 if (!isLoggedIn()) { die('Not allowed.'); }
9f15ca9e 1884 $LINKSDB = new LinkDB(
9c8752a2 1885 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1886 isLoggedIn(),
90e5bd65
A		 1887 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1888 $GLOBALS['redirector']
9f15ca9e 1889 );
45034273
SS		 1890 $filename=$_FILES['filetoupload']['name'];
1891 $filesize=$_FILES['filetoupload']['size'];
1892 $data=file_get_contents($_FILES['filetoupload']['tmp_name']);
ad6c27b7 1893 $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private?
1894 $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones?
45034273
SS		 1895 $import_count=0;
1896
1897 // Sniff file type:
1898 $type='unknown';
1899 if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
1900
1901 // Then import the bookmarks.
1902 if ($type=='netscape')
1903 {
1904 // This is a standard Netscape-style bookmark file.
ad6c27b7 1905 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
45034273
SS		 1906 foreach(explode('<DT>',$data) as $html) // explode is very fast
1907 {
1908 $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
1909 $d = explode('<DD>',$html);
1910 if (startswith($d[0],'<A '))
1911 {
1912 $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
1913 preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title
1914 $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8');
1915 preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes
1916 $raw_add_date=0;
1917 foreach($matches as $m)
1918 {
1919 $attr=$m[1]; $value=$m[2];
1920 if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8');
fc93ae1d
AA		 1921 elseif ($attr=='ADD_DATE')
1922 {
1923 $raw_add_date=intval($value);
1924 if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1925 }
45034273
SS		 1926 elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1);
1927 elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8');
1928 }
1929 if ($link['url']!='')
1930 {
1931 if ($private==1) $link['private']=1;
1932 $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database.
1933 if ($dblink==false)
1934 { // Link not in database, let's import it...
1935 if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE
1936
1937 // Make sure date/time is not already used by another link.
1938 // (Some bookmark files have several different links with the same ADD_DATE)
ad6c27b7 1939 // We increment date by 1 second until we find a date which is not used in DB.
45034273
SS		 1940 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1941 while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly.
1942 $link['linkdate']=date('Ymd_His',$raw_add_date);
1943 $LINKSDB[$link['linkdate']] = $link;
1944 $import_count++;
1945 }
ad6c27b7 1946 else // Link already present in database.
45034273
SS		 1947 {
1948 if ($overwrite)
1949 { // If overwrite is required, we import link data, except date/time.
1950 $link['linkdate']=$dblink['linkdate'];
1951 $LINKSDB[$link['linkdate']] = $link;
1952 $import_count++;
1953 }
1954 }
1955
1956 }
1957 }
1958 }
01e48f26 1959 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273 1960
fe16b01e 1961 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
45034273
SS		 1962 }
1963 else
1964 {
fe16b01e 1965 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
45034273
SS		 1966 }
1967}
1968
1969// -----------------------------------------------------------------------------------------------
1970// Template for the list of links (<div id="linklist">)
1971// This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1972function buildLinkList($PAGE,$LINKSDB)
1973{
c51fae92
A		 1974 // Filter link database according to parameters.
1975 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
1976 $searchterm = !empty($_GET['searchterm']) ? escape(trim($_GET['searchterm'])) : '';
822bffce
A		 1977 $privateonly = !empty($_SESSION['privateonly']) ? true : false;
1978
c51fae92
A		 1979 // Search tags + fullsearch.
1980 if (! empty($searchtags) && ! empty($searchterm)) {
1981 $linksToDisplay = $LINKSDB->filter(
1982 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
1983 array($searchtags, $searchterm),
1984 false,
1985 $privateonly
1986 );
822bffce 1987 }
c51fae92
A		 1988 // Search by tags.
1989 elseif (! empty($searchtags)) {
1990 $linksToDisplay = $LINKSDB->filter(
1991 LinkFilter::$FILTER_TAG,
1992 $searchtags,
1993 false,
1994 $privateonly
1995 );
1996 }
1997 // Fulltext search.
1998 elseif (! empty($searchterm)) {
1999 $linksToDisplay = $LINKSDB->filter(
2000 LinkFilter::$FILTER_TEXT,
2001 $searchterm,
2002 false,
2003 $privateonly
2004 );
822bffce
A		 2005 }
2006 // Detect smallHashes in URL.
c51fae92
A		 2007 elseif (! empty($_SERVER['QUERY_STRING'])
2008 && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/', $_SERVER['QUERY_STRING'])
2009 ) {
2010 $linksToDisplay = $LINKSDB->filter(
2011 LinkFilter::$FILTER_HASH,
2012 substr(trim($_SERVER["QUERY_STRING"], '/'), 0, 6)
2013 );
822bffce
A		 2014
2015 if (count($linksToDisplay) == 0) {
f4c84ad7 2016 $PAGE->render404('The link you are trying to reach does not exist or has been deleted.');
45034273
SS		 2017 exit;
2018 }
45034273 2019 }
822bffce
A		 2020 // Otherwise, display without filtering.
2021 else {
2022 $linksToDisplay = $LINKSDB->filter('', '', false, $privateonly);
45034273
SS		 2023 }
2024
2025 // ---- Handle paging.
822bffce
A		 2026 $keys = array();
2027 foreach ($linksToDisplay as $key => $value) {
2028 $keys[] = $key;
2029 }
45034273
SS		 2030
2031 // If there is only a single link, we change on-the-fly the title of the page.
822bffce
A		 2032 if (count($linksToDisplay) == 1) {
2033 $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
2034 }
45034273
SS		 2035
2036 // Select articles according to paging.
822bffce
A		 2037 $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
2038 $pagecount = $pagecount == 0 ? 1 : $pagecount;
2039 $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
2040 $page = $page < 1 ? 1 : $page;
2041 $page = $page > $pagecount ? $pagecount : $page;
2042 // Start index.
2043 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
2044 $end = $i + $_SESSION['LINKS_PER_PAGE'];
2045 $linkDisp = array();
45034273
SS		 2046 while ($i<$end && $i<count($keys))
2047 {
2048 $link = $linksToDisplay[$keys[$i]];
90e5bd65 2049 $link['description'] = format_description($link['description'], $GLOBALS['redirector']);
822bffce
A		 2050 $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
2051 $link['class'] = $link['private'] == 0 ? $classLi : 'private';
205a4277
V		 2052 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
2053 $link['timestamp'] = $date->getTimestamp();
822bffce 2054 $taglist = explode(' ', $link['tags']);
a5752e77 2055 uasort($taglist, 'strcasecmp');
822bffce 2056 $link['taglist'] = $taglist;
6fc14d53 2057 $link['shorturl'] = smallHash($link['linkdate']);
822bffce
A		 2058 // Check for both signs of a note: starting with ? and 7 chars long.
2059 if ($link['url'][0] === '?' &&
2060 strlen($link['url']) === 7) {
2061 $link['url'] = index_url($_SERVER) . $link['url'];
b47f515a 2062 }
d33c5d4c 2063
45034273
SS		 2064 $linkDisp[$keys[$i]] = $link;
2065 $i++;
2066 }
bb8f712d 2067
45034273 2068 // Compute paging navigation
c51fae92
A		 2069 $searchtagsUrl = empty($searchtags) ? '' : '&searchtags=' . urlencode($searchtags);
2070 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
822bffce
A		 2071 $previous_page_url = '';
2072 if ($i != count($keys)) {
c51fae92 2073 $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
822bffce
A		 2074 }
2075 $next_page_url='';
2076 if ($page>1) {
c51fae92 2077 $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
822bffce 2078 }
45034273 2079
c51fae92 2080 $token = isLoggedIn() ? getToken() : '';
bb8f712d 2081
45034273 2082 // Fill all template fields.
6fc14d53
A		 2083 $data = array(
2084 'linkcount' => count($LINKSDB),
2085 'previous_page_url' => $previous_page_url,
2086 'next_page_url' => $next_page_url,
2087 'page_current' => $page,
2088 'page_max' => $pagecount,
2089 'result_count' => count($linksToDisplay),
c51fae92
A		 2090 'search_term' => $searchterm,
2091 'search_tags' => $searchtags,
6fc14d53
A		 2092 'redirector' => empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'], // Optional redirector URL.
2093 'token' => $token,
2094 'links' => $linkDisp,
2095 'tags' => $LINKSDB->allTags(),
2096 );
18cca483
A		 2097 // FIXME! temporary fix - see #399.
2098 if (!empty($GLOBALS['pagetitle']) && count($linkDisp) == 1) {
2099 $data['pagetitle'] = $GLOBALS['pagetitle'];
2100 }
6fc14d53
A		 2101
2102 $pluginManager = PluginManager::getInstance();
2103 $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
2104
2105 foreach ($data as $key => $value) {
2106 $PAGE->assign($key, $value);
2107 }
2108
45034273
SS		 2109 return;
2110}
2111
2112// Compute the thumbnail for a link.
bb8f712d 2113//
ad6c27b7 2114// With a link to the original URL.
45034273 2115// Understands various services (youtube.com...)
ad6c27b7 2116// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2117// $href = if provided, this URL will be followed instead of $url
2118// Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
2119// Some of them may be missing.
2120// Return an empty array if no thumbnail available.
2121function computeThumbnail($url,$href=false)
2122{
2123 if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
2124 if ($href==false) $href=$url;
2125
2126 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
ad6c27b7 2127 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
45034273
SS		 2128 // ^^^^^^^^^^^ ^^^^^^^^^^^
2129 $domain = parse_url($url,PHP_URL_HOST);
2130 if ($domain=='youtube.com' || $domain=='www.youtube.com')
2131 {
2132 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1a663a0f 2133 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
45034273
SS		 2134 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
2135 }
2136 if ($domain=='youtu.be') // Youtube short links
2137 {
2138 $path = parse_url($url,PHP_URL_PATH);
1a663a0f 2139 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
bb8f712d 2140 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
45034273
SS		 2141 }
2142 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
2143 {
2144 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
2145 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
bb8f712d
KT		 2146 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
2147 }
2148
45034273
SS		 2149 if ($domain=='imgur.com')
2150 {
2151 $path = parse_url($url,PHP_URL_PATH);
2152 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1a663a0f 2153 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
45034273 2154 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1a663a0f 2155 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
45034273
SS		 2156 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2157
1a663a0f 2158 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
45034273
SS		 2159 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2160 }
2161 if ($domain=='i.imgur.com')
2162 {
2163 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1a663a0f 2164 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
45034273
SS		 2165 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2166 }
2167 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
2168 {
2169 if (strpos($url,'dailymotion.com/video/')!==false)
2170 {
2171 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
2172 return array('src'=>$thumburl,
2173 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
2174 }
2175 }
2176 if (endsWith($domain,'.imageshack.us'))
2177 {
2178 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2179 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2180 {
2181 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
2182 return array('src'=>$thumburl,
2183 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
2184 }
2185 }
2186
2187 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2188 // So we deport the thumbnail generation in order not to slow down page generation
2189 // (and we also cache the thumbnail)
2190
2191 if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2192
2193 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
2194 || $domain=='vimeo.com'
2195 || $domain=='ted.com' || endsWith($domain,'.ted.com')
2196 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
2197 )
2198 {
2199 if ($domain=='vimeo.com')
ad6c27b7 2200 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
45034273
SS		 2201 $path = parse_url($url,PHP_URL_PATH);
2202 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
2203 }
2204 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
ad6c27b7 2205 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
45034273
SS		 2206 $path = parse_url($url,PHP_URL_PATH);
2207 if (!preg_match('!/\d+.+?!',$path)) return array();
2208 }
2209 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
ad6c27b7 2210 { // Make sure this TED URL points to a video (/talks/...)
45034273
SS		 2211 $path = parse_url($url,PHP_URL_PATH);
2212 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
2213 }
2214 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2215 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
45034273
SS		 2216 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
2217 }
2218
2219 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2220 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2221 // But using the extension will do.
2222 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2223 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2224 {
2225 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2226 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
bb8f712d 2227 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
45034273
SS		 2228 }
2229 return array(); // No thumbnail.
2230
2231}
2232
2233
2234// Returns the HTML code to display a thumbnail for a link
2235// with a link to the original URL.
2236// Understands various services (youtube.com...)
ad6c27b7 2237// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2238// $href = if provided, this URL will be followed instead of $url
2239// Returns '' if no thumbnail available.
2240function thumbnail($url,$href=false)
2241{
2242 $t = computeThumbnail($url,$href);
2243 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
bb8f712d 2244
5f85fcd8
A		 2245 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
2246 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2247 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2248 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2249 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273
SS		 2250 $html.='></a>';
2251 return $html;
2252}
2253
45034273
SS		 2254// Returns the HTML code to display a thumbnail for a link
2255// for the picture wall (using lazy image loading)
2256// Understands various services (youtube.com...)
ad6c27b7 2257// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2258// $href = if provided, this URL will be followed instead of $url
2259// Returns '' if no thumbnail available.
2260function lazyThumbnail($url,$href=false)
2261{
bb8f712d 2262 $t = computeThumbnail($url,$href);
45034273
SS		 2263 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
2264
5f85fcd8 2265 $html='<a href="'.escape($t['href']).'">';
bb8f712d 2266
34047d23 2267 // Lazy image
5f85fcd8 2268 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
858c5c2b 2269
5f85fcd8
A		 2270 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2271 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2272 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2273 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2274 $html.='>';
bb8f712d 2275
ad6c27b7 2276 // No-JavaScript fallback.
5f85fcd8
A		 2277 $html.='<noscript><img src="'.escape($t['src']).'"';
2278 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2279 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2280 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2281 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2282 $html.='></noscript></a>';
bb8f712d 2283
45034273
SS		 2284 return $html;
2285}
2286
2287
2288// -----------------------------------------------------------------------------------------------
2289// Installation
2290// This function should NEVER be called if the file data/config.php exists.
2291function install()
2292{
2293 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
f6a6ca0a 2294 if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
45034273 2295
f37664a2
SS		 2296
2297 // This part makes sure sessions works correctly.
2298 // (Because on some hosts, session.save_path may not be set correctly,
2299 // or we may not have write access to it.)
2300 if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
2301 { // Step 2: Check if data in session is correct.
2302 echo '<pre>Sessions do not seem to work correctly on your server.<br>';
2303 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
01ec1791 2304 echo 'It currently points to '.session_save_path().'<br>';
2305 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
2306 echo '<br><a href="?">Click to try again.</a></pre>';
f37664a2
SS		 2307 die;
2308 }
2309 if (!isset($_SESSION['session_tested']))
2310 { // Step 1 : Try to store data in session and reload page.
2311 $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
482d67bd 2312 header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
f37664a2
SS		 2313 }
2314 if (isset($_GET['test_session']))
ad6c27b7 2315 { // Step 3: Sessions are OK. Remove test parameter from URL.
482d67bd 2316 header('Location: '.index_url($_SERVER));
f37664a2
SS		 2317 }
2318
2319
45034273
SS		 2320 if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
2321 {
2322 $tz = 'UTC';
d1e2f8e5
V		 2323 if (!empty($_POST['continent']) && !empty($_POST['city'])) {
2324 if (isTimeZoneValid($_POST['continent'], $_POST['city'])) {
45034273 2325 $tz = $_POST['continent'].'/'.$_POST['city'];
d1e2f8e5
V		 2326 }
2327 }
45034273
SS		 2328 $GLOBALS['timezone'] = $tz;
2329 // Everything is ok, let's create config file.
2330 $GLOBALS['login'] = $_POST['setlogin'];
2331 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
2332 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
482d67bd 2333 $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] );
329e0768 2334 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
dd484b90
A		 2335 try {
2336 writeConfig($GLOBALS, isLoggedIn());
2337 }
2338 catch(Exception $e) {
2339 error_log(
2340 'ERROR while writing config file after installation.' . PHP_EOL .
2341 $e->getMessage()
2342 );
2343
2344 // TODO: do not handle exceptions/errors in JS.
2345 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
2346 exit;
2347 }
fe16b01e 2348 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
45034273
SS		 2349 exit;
2350 }
2351
2352 // Display config form:
d1e2f8e5
V		 2353 list($timezone_form, $timezone_js) = generateTimeZoneForm();
2354 $timezone_html = '';
2355 if ($timezone_form != '') {
2356 $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
2357 }
bb8f712d 2358
45034273
SS		 2359 $PAGE = new pageBuilder;
2360 $PAGE->assign('timezone_html',$timezone_html);
2361 $PAGE->assign('timezone_js',$timezone_js);
2362 $PAGE->renderPage('install');
2363 exit;
2364}
2365
ad6c27b7 2366/* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
45034273 2367 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
ad6c27b7 2368 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2369 This function is called by passing the URL:
45034273 2370 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
ad6c27b7 2371 [URL] is the URL of the link (e.g. a flickr page)
45034273
SS		 2372 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2373 The function below will fetch the image from the webservice and store it in the cache.
2374*/
2375function genThumbnail()
2376{
2377 // Make sure the parameters in the URL were generated by us.
2378 $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']);
ad6c27b7 2379 if ($sign!=$_GET['hmac']) die('Naughty boy!');
45034273
SS		 2380
2381 // Let's see if we don't already have the image for this URL in the cache.
2382 $thumbname=hash('sha1',$_GET['url']).'.jpg';
2383 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname))
2384 { // We have the thumbnail, just serve it:
2385 header('Content-Type: image/jpeg');
2386 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname);
2387 return;
2388 }
2389 // We may also serve a blank image (if service did not respond)
2390 $blankname=hash('sha1',$_GET['url']).'.gif';
2391 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname))
2392 {
2393 header('Content-Type: image/gif');
2394 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname);
2395 return;
2396 }
2397
2398 // Otherwise, generate the thumbnail.
2399 $url = $_GET['url'];
2400 $domain = parse_url($url,PHP_URL_HOST);
2401
2402 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
2403 {
ad6c27b7 2404 // Crude replacement to handle new flickr domain policy (They prefer www. now)
45034273
SS		 2405 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
2406
2407 // Is this a link to an image, or to a flickr page ?
2408 $imageurl='';
2409 if (endswith(parse_url($url,PHP_URL_PATH),'.jpg'))
ad6c27b7 2410 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
45034273
SS		 2411 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
2412 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
2413 }
ad6c27b7 2414 else // This is a flickr page (html)
45034273 2415 {
451314eb 2416 // Get the flickr html page.
1557cefb 2417 list($headers, $content) = get_http_response($url, 20);
451314eb 2418 if (strpos($headers[0], '200 OK') !== false)
45034273 2419 {
ad6c27b7 2420 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1557cefb 2421 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
45034273
SS		 2422 if (!empty($matches[1])) $imageurl=$matches[1];
2423
2424 // In albums (and some other pages), the link rel="image_src" is not provided,
2425 // but flickr provides:
2426 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2427 if ($imageurl=='')
2428 {
1557cefb 2429 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
45034273
SS		 2430 if (!empty($matches[1])) $imageurl=$matches[1];
2431 }
2432 }
2433 }
2434
2435 if ($imageurl!='')
2436 { // Let's download the image.
451314eb 2437 // Image is 240x120, so 10 seconds to download should be enough.
1557cefb 2438 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2439 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2440 // Save image to cache.
2441 file_put_contents($GLOBALS['config']['CACHEDIR'].'/' . $thumbname, $content);
45034273 2442 header('Content-Type: image/jpeg');
1557cefb 2443 echo $content;
45034273
SS		 2444 return;
2445 }
2446 }
2447 }
2448
2449 elseif ($domain=='vimeo.com' )
2450 {
2451 // This is more complex: we have to perform a HTTP request, then parse the result.
ad6c27b7 2452 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
45034273 2453 $vid = substr(parse_url($url,PHP_URL_PATH),1);
1557cefb 2454 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
451314eb 2455 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2456 $t = unserialize($content);
45034273
SS		 2457 $imageurl = $t[0]['thumbnail_medium'];
2458 // Then we download the image and serve it to our client.
1557cefb 2459 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2460 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2461 // Save image to cache.
2462 file_put_contents($GLOBALS['config']['CACHEDIR'] . '/' . $thumbname, $content);
45034273 2463 header('Content-Type: image/jpeg');
1557cefb 2464 echo $content;
45034273
SS		 2465 return;
2466 }
2467 }
2468 }
2469
2470 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2471 {
2472 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2473 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2474 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
1557cefb 2475 list($headers, $content) = get_http_response($url, 5);
451314eb 2476 if (strpos($headers[0], '200 OK') !== false) {
45034273 2477 // Extract the link to the thumbnail
1557cefb 2478 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
45034273
SS		 2479 if (!empty($matches[1]))
2480 { // Let's download the image.
2481 $imageurl=$matches[1];
451314eb 2482 // No control on image size, so wait long enough
1557cefb 2483 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2484 if (strpos($headers[0], '200 OK') !== false) {
45034273 2485 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb 2486 file_put_contents($filepath, $content); // Save image to cache.
45034273
SS		 2487 if (resizeImage($filepath))
2488 {
2489 header('Content-Type: image/jpeg');
2490 echo file_get_contents($filepath);
2491 return;
2492 }
2493 }
2494 }
2495 }
2496 }
bb8f712d 2497
45034273
SS		 2498 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2499 {
2500 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2501 // http://xkcd.com/327/
2502 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
1557cefb 2503 list($headers, $content) = get_http_response($url, 5);
451314eb 2504 if (strpos($headers[0], '200 OK') !== false) {
45034273 2505 // Extract the link to the thumbnail
1557cefb 2506 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
45034273
SS		 2507 if (!empty($matches[1]))
2508 { // Let's download the image.
2509 $imageurl=$matches[1];
451314eb 2510 // No control on image size, so wait long enough
1557cefb 2511 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2512 if (strpos($headers[0], '200 OK') !== false) {
45034273 2513 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2514 // Save image to cache.
2515 file_put_contents($filepath, $content);
45034273
SS		 2516 if (resizeImage($filepath))
2517 {
2518 header('Content-Type: image/jpeg');
2519 echo file_get_contents($filepath);
2520 return;
2521 }
2522 }
2523 }
2524 }
bb8f712d 2525 }
45034273
SS		 2526
2527 else
2528 {
2529 // For all other domains, we try to download the image and make a thumbnail.
451314eb 2530 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
1557cefb 2531 list($headers, $content) = get_http_response($url, 30);
451314eb 2532 if (strpos($headers[0], '200 OK') !== false) {
45034273 2533 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2534 // Save image to cache.
2535 file_put_contents($filepath, $content);
45034273
SS		 2536 if (resizeImage($filepath))
2537 {
2538 header('Content-Type: image/jpeg');
2539 echo file_get_contents($filepath);
2540 return;
2541 }
2542 }
2543 }
2544
2545
2546 // Otherwise, return an empty image (8x8 transparent gif)
2547 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
2548 file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
2549 header('Content-Type: image/gif');
2550 echo $blankgif;
2551}
2552
2553// Make a thumbnail of the image (to width: 120 pixels)
2554// Returns true if success, false otherwise.
2555function resizeImage($filepath)
2556{
2557 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2558
2559 // Trick: some stupid people rename GIF as JPEG... or else.
2560 // So we really try to open each image type whatever the extension is.
2561 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2562 $im=false;
2563 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2564 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2565 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2566 if (!$im) return false; // Unable to open image (corrupted or not an image)
2567 $w = imagesx($im);
2568 $h = imagesy($im);
2569 $ystart = 0; $yheight=$h;
2570 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2571 $nw = 120; // Desired width
2572 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2573 // Resize image:
2574 $im2 = imagecreatetruecolor($nw,$nh);
2575 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2576 imageinterlace($im2,true); // For progressive JPEG.
2577 $tempname=$filepath.'_TEMP.jpg';
2578 imagejpeg($im2, $tempname, 90);
2579 imagedestroy($im);
2580 imagedestroy($im2);
9e820906 2581 unlink($filepath);
45034273
SS		 2582 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2583 return true;
2584}
2585
45034273
SS		 2586if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
2587if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
2588if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
2589if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
45034273
SS		 2590if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
2591renderPage();
03545ef6 2592?>
The personal, minimalist, super-fast, database free, bookmarking service - community repo