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Reword the ENABLE_RSS_PERMALINKS in the settings.
[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
1c2fdb98
A		 640 /**
641 * Assign an array of data to the template builder.
642 *
643 * @param array $data Data to assign.
644 *
645 * @return false if invalid data.
646 */
647 public function assignAll($data)
648 {
649 // Lazy initialization
650 if ($this->tpl === false) {
651 $this->initialize();
652 }
653
654 if (empty($data) || !is_array($data)){
655 return false;
656 }
657
658 foreach ($data as $key => $value) {
659 $this->assign($key, $value);
660 }
661 }
662
45034273 663 // Render a specific page (using a template).
ad6c27b7 664 // e.g. pb.renderPage('picwall')
45034273
SS		 665 public function renderPage($page)
666 {
667 if ($this->tpl===false) $this->initialize(); // Lazy initialization
668 $this->tpl->draw($page);
669 }
f4c84ad7
D		 670
671 /**
672 * Render a 404 page (uses the template : tpl/404.tpl)
673 *
674 * usage : $PAGE->render404('The link was deleted')
675 * @param string $message A messate to display what is not found
676 */
677 public function render404($message='The page you are trying to reach does not exist or has been deleted.') {
678 header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
679 $this->tpl->assign('error_message', $message);
680 $this->renderPage('404');
681 }
45034273
SS		 682}
683
45034273 684// ------------------------------------------------------------------------------------------
ad6c27b7 685// Output the last N links in RSS 2.0 format.
e67712ba 686function showRSS($pageBuilder, $linkDB)
45034273
SS		 687{
688 header('Content-Type: application/rss+xml; charset=utf-8');
689
2abd3905 690 // $usepermalink : If true, use permalink instead of final link.
ad6c27b7 691 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
ed5b38dd
FE		 692 // Also enabled through a config option
693 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
2abd3905 694
45034273 695 // Cache system
e67712ba 696 $query = $_SERVER['QUERY_STRING'];
01e48f26
V		 697 $cache = new CachedPage(
698 $GLOBALS['config']['PAGECACHE'],
482d67bd 699 page_url($_SERVER),
e67712ba 700 startsWith($query, 'do=rss') && !isLoggedIn()
01e48f26
V		 701 );
702 $cached = $cache->cachedVersion();
703 if (! empty($cached)) {
704 echo $cached;
705 exit;
706 }
45034273 707
ad6c27b7 708 // Optionally filter the results:
c51fae92
A		 709 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
710 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
711 if (! empty($searchtags) && ! empty($searchterm)) {
e67712ba 712 $linksToDisplay = $linkDB->filter(
c51fae92
A		 713 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
714 array($searchtags, $searchterm)
715 );
822bffce 716 }
c51fae92 717 elseif ($searchtags) {
e67712ba 718 $linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
c51fae92
A		 719 }
720 elseif ($searchterm) {
e67712ba 721 $linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 722 }
723 else {
e67712ba 724 $linksToDisplay = $linkDB;
822bffce 725 }
f3db3774 726
c677013b 727 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 728 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
729 if (!empty($_GET['nb'])) {
730 $nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
c677013b 731 }
45034273 732
e67712ba
A		 733 $keys = array();
734 foreach ($linksToDisplay as $key=>$value) {
735 $keys[] = $key; // No, I can't use array_keys().
736 }
737
822bffce 738 $pageaddr = escape(index_url($_SERVER));
e67712ba
A		 739 $latestDate = '';
740 $i = 0;
741 $linkDisp = array();
742 while ($i < $nblinksToDisplay && $i < count($keys))
45034273
SS		 743 {
744 $link = $linksToDisplay[$keys[$i]];
e67712ba
A		 745 $link['guid'] = $pageaddr. '?' .smallHash($link['linkdate']);
746 // Check for both signs of a note: starting with ? and 7 chars long.
747 if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
748 $link['url'] = $pageaddr . $link['url'];
45034273 749 }
e67712ba
A		 750 if ($usepermalinks) {
751 $permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
752 } else {
753 $permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
754 }
755 $link['description'] = format_description($link['description']) . PHP_EOL .'<br>&#8212; '. $permalink;
756
757 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
758 $link['iso_date'] = $date->format(DateTime::RSS);
759 $latestDate = max($latestDate, $link['iso_date']);
760 $taglist = array_filter(explode(' ', $link['tags']), 'strlen');
761 uasort($taglist, 'strcasecmp');
762 $link['taglist'] = $taglist;
2abd3905 763
e67712ba 764 $linkDisp[$keys[$i]] = $link;
45034273
SS		 765 $i++;
766 }
45034273 767
e67712ba
A		 768 $data = array();
769 if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
770 $data['pubsubhub_url'] = escape($GLOBALS['config']['PUBSUBHUB_URL']);
771 }
772
773 // Use the locale do define the language, if available.
774 $locale = strtolower(setlocale(LC_COLLATE, 0));
775 if (! empty($locale) && preg_match('/^\w{2}[_\-]\w{2}/', $locale)) {
776 $data['language'] = str_replace('_', '-', substr($locale, 0, 5));
777 } else {
778 $data['language'] = 'en-en';
779 }
780 $data['last_update'] = escape($latestDate);
781 $data['show_dates'] = !$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn();
782 // Remove starting slash from REQUEST_URI.
783 $data['self_link'] = escape($pageaddr . substr($_SERVER['REQUEST_URI'], 1));
784 $data['index_url'] = escape($pageaddr);
785 $data['usepermalinks'] = $usepermalinks;
786 $data['links'] = $linkDisp;
787
bcd078bf
A		 788 $pluginManager = PluginManager::getInstance();
789 $pluginManager->executeHooks('render_feed', $data, array(
790 'loggedin' => isLoggedIn(),
791 'target' => Router::$PAGE_RSS,
792 ));
793
e67712ba
A		 794 $pageBuilder->assignAll($data);
795 $pageBuilder->renderPage('feed.rss', false);
45034273
SS		 796 $cache->cache(ob_get_contents());
797 ob_end_flush();
798 exit;
799}
800
801// ------------------------------------------------------------------------------------------
ad6c27b7 802// Output the last N links in ATOM format.
69c474b9 803function showATOM($pageBuilder, $linkDB)
45034273
SS		 804{
805 header('Content-Type: application/atom+xml; charset=utf-8');
806
807 // Cache system
808 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 809 $cache = new CachedPage(
810 $GLOBALS['config']['PAGECACHE'],
482d67bd 811 page_url($_SERVER),
01e48f26
V		 812 startsWith($query,'do=atom') && !isLoggedIn()
813 );
814 $cached = $cache->cachedVersion();
815 if (!empty($cached)) {
816 echo $cached;
817 exit;
818 }
45034273 819
69c474b9
A		 820 // $usepermalink : If true, use permalink instead of final link.
821 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
822 $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
45034273 823
ad6c27b7 824 // Optionally filter the results:
c51fae92
A		 825 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
826 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
827 if (! empty($searchtags) && ! empty($searchterm)) {
69c474b9 828 $linksToDisplay = $linkDB->filter(
c51fae92
A		 829 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
830 array($searchtags, $searchterm)
831 );
822bffce 832 }
c51fae92 833 elseif ($searchtags) {
69c474b9 834 $linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
c51fae92
A		 835 }
836 elseif ($searchterm) {
69c474b9 837 $linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 838 }
839 else {
69c474b9 840 $linksToDisplay = $linkDB;
822bffce 841 }
f3db3774 842
c677013b 843 $nblinksToDisplay = 50; // Number of links to display.
822bffce
A		 844 // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
845 if (!empty($_GET['nb'])) {
69c474b9
A		 846 $nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
847 }
848
849 $keys = array();
850 foreach ($linksToDisplay as $key=>$value) {
851 $keys[] = $key; // No, I can't use array_keys().
c677013b 852 }
45034273 853
69c474b9 854 $pageaddr = escape(index_url($_SERVER));
45034273 855 $latestDate = '';
69c474b9
A		 856 $i = 0;
857 $linkDisp = array();
858 while ($i < $nblinksToDisplay && $i < count($keys))
45034273
SS		 859 {
860 $link = $linksToDisplay[$keys[$i]];
69c474b9
A		 861 $link['guid'] = $pageaddr. '?' .smallHash($link['linkdate']);
862 // Check for both signs of a note: starting with ? and 7 chars long.
863 if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
864 $link['url'] = $pageaddr . $link['url'];
865 }
866 if ($usepermalinks) {
867 $permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
868 } else {
869 $permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
205a4277 870 }
69c474b9 871 $link['description'] = format_description($link['description']) . PHP_EOL .'<br>&#8212; '. $permalink;
2abd3905 872
69c474b9
A		 873 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
874 $link['iso_date'] = $date->format(DateTime::ATOM);
875 $latestDate = max($latestDate, $link['iso_date']);
876 $taglist = array_filter(explode(' ', $link['tags']), 'strlen');
877 uasort($taglist, 'strcasecmp');
878 $link['taglist'] = $taglist;
2abd3905 879
69c474b9 880 $linkDisp[$keys[$i]] = $link;
45034273
SS		 881 $i++;
882 }
69c474b9
A		 883
884 $data = array();
885 if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
886 $data['pubsubhub_url'] = escape($GLOBALS['config']['PUBSUBHUB_URL']);
45034273 887 }
69c474b9
A		 888 // Use the locale do define the language, if available.
889 $locale = strtolower(setlocale(LC_COLLATE, 0));
890 if (! empty($locale) && preg_match('/^\w{2}[_\-]\w{2}/', $locale)) {
891 $data['language'] = substr($locale, 0, 2);
892 } else {
893 $data['language'] = 'en';
894 }
895 $data['last_update'] = escape($latestDate);
896 $data['show_dates'] = !$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn();
897 $data['self_link'] = escape($pageaddr . $_SERVER['REQUEST_URI']);
898 $data['index_url'] = escape($pageaddr);
899 $data['usepermalinks'] = $usepermalinks;
900 $data['links'] = $linkDisp;
bb8f712d 901
e67712ba
A		 902 $pluginManager = PluginManager::getInstance();
903 $pluginManager->executeHooks('render_feed', $data, array(
904 'loggedin' => isLoggedIn(),
905 'target' => Router::$PAGE_ATOM,
906 ));
907
69c474b9
A		 908 $pageBuilder->assignAll($data);
909 $pageBuilder->renderPage('feed.atom', false);
45034273
SS		 910 $cache->cache(ob_get_contents());
911 ob_end_flush();
912 exit;
913}
914
915// ------------------------------------------------------------------------------------------
916// Daily RSS feed: 1 RSS entry per day giving all the links on that day.
917// Gives the last 7 days (which have links).
918// This RSS feed cannot be filtered.
f3b8f9f0 919function showDailyRSS() {
45034273
SS		 920 // Cache system
921 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 922 $cache = new CachedPage(
923 $GLOBALS['config']['PAGECACHE'],
482d67bd 924 page_url($_SERVER),
01e48f26
V		 925 startsWith($query,'do=dailyrss') && !isLoggedIn()
926 );
f3b8f9f0
A		 927 $cached = $cache->cachedVersion();
928 if (!empty($cached)) {
929 echo $cached;
930 exit;
931 }
9f15ca9e 932
f3b8f9f0
A		 933 // If cached was not found (or not usable), then read the database and build the response:
934 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 935 $LINKSDB = new LinkDB(
9c8752a2 936 $GLOBALS['config']['DATASTORE'],
02ad8fb6 937 isLoggedIn(),
90e5bd65
A		 938 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
939 $GLOBALS['redirector']
9f15ca9e 940 );
bb8f712d 941
45034273
SS		 942 /* Some Shaarlies may have very few links, so we need to look
943 back in time (rsort()) until we have enough days ($nb_of_days).
944 */
f3b8f9f0
A		 945 $linkdates = array();
946 foreach ($LINKSDB as $linkdate => $value) {
947 $linkdates[] = $linkdate;
948 }
45034273 949 rsort($linkdates);
f3b8f9f0
A		 950 $nb_of_days = 7; // We take 7 days.
951 $today = Date('Ymd');
952 $days = array();
953
954 foreach ($linkdates as $linkdate) {
955 $day = substr($linkdate, 0, 8); // Extract day (without time)
956 if (strcmp($day,$today) < 0) {
957 if (empty($days[$day])) {
958 $days[$day] = array();
959 }
960 $days[$day][] = $linkdate;
961 }
962
963 if (count($days) > $nb_of_days) {
964 break; // Have we collected enough days?
45034273 965 }
45034273 966 }
bb8f712d 967
45034273
SS		 968 // Build the RSS feed.
969 header('Content-Type: application/rss+xml; charset=utf-8');
482d67bd 970 $pageaddr = escape(index_url($_SERVER));
45034273 971 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
f3b8f9f0
A		 972 echo '<channel>';
973 echo '<title>Daily - '. $GLOBALS['title'] . '</title>';
974 echo '<link>'. $pageaddr .'</link>';
975 echo '<description>Daily shared links</description>';
976 echo '<language>en-en</language>';
977 echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
978
979 // For each day.
980 foreach ($days as $day => $linkdates) {
205a4277 981 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
482d67bd 982 $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
bb8f712d 983
45034273 984 // Build the HTML body of this RSS entry.
f3b8f9f0
A		 985 $html = '';
986 $href = '';
987 $links = array();
988
45034273 989 // We pre-format some fields for proper output.
f3b8f9f0 990 foreach ($linkdates as $linkdate) {
45034273 991 $l = $LINKSDB[$linkdate];
90e5bd65 992 $l['formatedDescription'] = format_description($l['description'], $GLOBALS['redirector']);
bb8f712d 993 $l['thumbnail'] = thumbnail($l['url']);
205a4277
V		 994 $l_date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $l['linkdate']);
995 $l['timestamp'] = $l_date->getTimestamp();
f3b8f9f0 996 if (startsWith($l['url'], '?')) {
482d67bd 997 $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute
f3b8f9f0
A		 998 }
999 $links[$linkdate] = $l;
45034273 1000 }
f3b8f9f0 1001
45034273 1002 // Then build the HTML for this day:
bb8f712d 1003 $tpl = new RainTPL;
f3b8f9f0 1004 $tpl->assign('title', $GLOBALS['title']);
205a4277 1005 $tpl->assign('daydate', $dayDate->getTimestamp());
f3b8f9f0
A		 1006 $tpl->assign('absurl', $absurl);
1007 $tpl->assign('links', $links);
205a4277 1008 $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
f3b8f9f0 1009 $html = $tpl->draw('dailyrss', $return_string=true);
45034273 1010
f3b8f9f0 1011 echo $html . PHP_EOL;
bb8f712d 1012 }
482d67bd 1013 echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
bb8f712d 1014
45034273
SS		 1015 $cache->cache(ob_get_contents());
1016 ob_end_flush();
1017 exit;
1018}
1019
38603b24
A		 1020/**
1021 * Show the 'Daily' page.
1022 *
1023 * @param PageBuilder $pageBuilder Template engine wrapper.
1024 */
1025function showDaily($pageBuilder)
45034273 1026{
9f15ca9e 1027 $LINKSDB = new LinkDB(
9c8752a2 1028 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1029 isLoggedIn(),
90e5bd65
A		 1030 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1031 $GLOBALS['redirector']
9f15ca9e 1032 );
45034273
SS		 1033
1034 $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
1035 if (isset($_GET['day'])) $day=$_GET['day'];
bb8f712d 1036
45034273
SS		 1037 $days = $LINKSDB->days();
1038 $i = array_search($day,$days);
f3db3774 1039 if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
bb8f712d
KT		 1040 $previousday='';
1041 $nextday='';
45034273
SS		 1042 if ($i!==false)
1043 {
f3db3774 1044 if ($i>=1) $previousday=$days[$i-1];
45034273
SS		 1045 if ($i<count($days)-1) $nextday=$days[$i+1];
1046 }
1047
9186ab95 1048 try {
822bffce 1049 $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_DAY, $day);
9186ab95
V		 1050 } catch (Exception $exc) {
1051 error_log($exc);
d1e2f8e5 1052 $linksToDisplay = array();
9186ab95
V		 1053 }
1054
45034273
SS		 1055 // We pre-format some fields for proper output.
1056 foreach($linksToDisplay as $key=>$link)
1057 {
5f85fcd8 1058
dd62b9ba
SS		 1059 $taglist = explode(' ',$link['tags']);
1060 uasort($taglist, 'strcasecmp');
1061 $linksToDisplay[$key]['taglist']=$taglist;
90e5bd65 1062 $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $GLOBALS['redirector']);
bb8f712d 1063 $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);
205a4277
V		 1064 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
1065 $linksToDisplay[$key]['timestamp'] = $date->getTimestamp();
45034273 1066 }
bb8f712d 1067
45034273 1068 /* We need to spread the articles on 3 columns.
ad6c27b7 1069 I did not want to use a JavaScript lib like http://masonry.desandro.com/
bb8f712d 1070 so I manually spread entries with a simple method: I roughly evaluate the
45034273
SS		 1071 height of a div according to title and description length.
1072 */
1073 $columns=array(array(),array(),array()); // Entries to display, for each column.
1074 $fill=array(0,0,0); // Rough estimate of columns fill.
1075 foreach($linksToDisplay as $key=>$link)
1076 {
1077 // Roughly estimate length of entry (by counting characters)
1078 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1079 // Description: 836 characters gives roughly 342 pixel height.
ad6c27b7 1080 // This is not perfect, but it's usually OK.
45034273
SS		 1081 $length=strlen($link['title'])+(342*strlen($link['description']))/836;
1082 if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
1083 // Then put in column which is the less filled:
1084 $smallest=min($fill); // find smallest value in array.
1085 $index=array_search($smallest,$fill); // find index of this smallest value.
1086 array_push($columns[$index],$link); // Put entry in this column.
1087 $fill[$index]+=$length;
1088 }
38603b24 1089
205a4277 1090 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
6fc14d53
A		 1091 $data = array(
1092 'linksToDisplay' => $linksToDisplay,
1093 'linkcount' => count($LINKSDB),
1094 'cols' => $columns,
205a4277 1095 'day' => $dayDate->getTimestamp(),
6fc14d53
A		 1096 'previousday' => $previousday,
1097 'nextday' => $nextday,
1098 );
1099 $pluginManager = PluginManager::getInstance();
1100 $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
1101
1102 foreach ($data as $key => $value) {
38603b24 1103 $pageBuilder->assign($key, $value);
6fc14d53
A		 1104 }
1105
38603b24 1106 $pageBuilder->renderPage('daily');
45034273
SS		 1107 exit;
1108}
1109
6fc14d53
A		 1110// Renders the linklist
1111function showLinkList($PAGE, $LINKSDB) {
1112 buildLinkList($PAGE,$LINKSDB); // Compute list of links to display
1113 $PAGE->renderPage('linklist');
1114}
1115
45034273
SS		 1116
1117// ------------------------------------------------------------------------------------------
1118// Render HTML page (according to URL parameters and user rights)
1119function renderPage()
1120{
9f15ca9e 1121 $LINKSDB = new LinkDB(
9c8752a2 1122 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1123 isLoggedIn(),
90e5bd65
A		 1124 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1125 $GLOBALS['redirector']
9f15ca9e 1126 );
45034273 1127
510377d2
A		 1128 $updater = new Updater(
1129 read_updates_file($GLOBALS['config']['UPDATES_FILE']),
1130 $GLOBALS,
1131 $LINKSDB,
1132 isLoggedIn()
1133 );
1134 try {
1135 $newUpdates = $updater->update();
1136 if (! empty($newUpdates)) {
1137 write_updates_file(
1138 $GLOBALS['config']['UPDATES_FILE'],
1139 $updater->getDoneUpdates()
1140 );
1141 }
1142 }
1143 catch(Exception $e) {
1144 die($e->getMessage());
1145 }
1146
6fc14d53
A		 1147 $PAGE = new pageBuilder;
1148
1149 // Determine which page will be rendered.
1150 $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
1151 $targetPage = Router::findPage($query, $_GET, isLoggedIn());
1152
1153 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
1154 // Then assign generated data to RainTPL.
1155 $common_hooks = array(
fea5db7a 1156 'includes',
6fc14d53
A		 1157 'header',
1158 'footer',
6fc14d53
A		 1159 );
1160 $pluginManager = PluginManager::getInstance();
1161 foreach($common_hooks as $name) {
1162 $plugin_data = array();
1163 $pluginManager->executeHooks('render_' . $name, $plugin_data,
1164 array(
1165 'target' => $targetPage,
1166 'loggedin' => isLoggedIn()
1167 )
1168 );
1169 $PAGE->assign('plugins_' . $name, $plugin_data);
1170 }
1171
45034273 1172 // -------- Display login form.
6fc14d53 1173 if ($targetPage == Router::$PAGE_LOGIN)
45034273
SS		 1174 {
1175 if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
1176 $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful.
45034273 1177 $PAGE->assign('token',$token);
5f85fcd8 1178 $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
45034273
SS		 1179 $PAGE->renderPage('loginform');
1180 exit;
1181 }
1182 // -------- User wants to logout.
1183 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
1184 {
01e48f26 1185 invalidateCaches($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1186 logout();
1187 header('Location: ?');
1188 exit;
1189 }
1190
1191 // -------- Picture wall
6fc14d53 1192 if ($targetPage == Router::$PAGE_PICWALL)
45034273 1193 {
ad6c27b7 1194 // Optionally filter the results:
c51fae92
A		 1195 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
1196 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
1197 if (! empty($searchtags) && ! empty($searchterm)) {
1198 $links = $LINKSDB->filter(
1199 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
1200 array($searchtags, $searchterm)
1201 );
822bffce 1202 }
c51fae92
A		 1203 elseif ($searchtags) {
1204 $links = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
1205 }
1206 elseif ($searchterm) {
1207 $links = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
822bffce
A		 1208 }
1209 else {
1210 $links = $LINKSDB;
1211 }
f3db3774 1212
822bffce 1213 $linksToDisplay = array();
45034273
SS		 1214
1215 // Get only links which have a thumbnail.
1216 foreach($links as $link)
1217 {
5f85fcd8 1218 $permalink='?'.escape(smallhash($link['linkdate']));
45034273
SS		 1219 $thumb=lazyThumbnail($link['url'],$permalink);
1220 if ($thumb!='') // Only output links which have a thumbnail.
1221 {
1222 $link['thumbnail']=$thumb; // Thumbnail HTML code.
45034273
SS		 1223 $linksToDisplay[]=$link; // Add to array.
1224 }
1225 }
f3db3774 1226
6fc14d53
A		 1227 $data = array(
1228 'linkcount' => count($LINKSDB),
1229 'linksToDisplay' => $linksToDisplay,
1230 );
1231 $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
1232
1233 foreach ($data as $key => $value) {
1234 $PAGE->assign($key, $value);
1235 }
1236
45034273
SS		 1237 $PAGE->renderPage('picwall');
1238 exit;
1239 }
1240
1241 // -------- Tag cloud
6fc14d53 1242 if ($targetPage == Router::$PAGE_TAGCLOUD)
45034273
SS		 1243 {
1244 $tags= $LINKSDB->allTags();
a037ac69 1245
45034273
SS		 1246 // We sort tags alphabetically, then choose a font size according to count.
1247 // First, find max value.
f1e96a06
A		 1248 $maxcount = 0;
1249 foreach ($tags as $value) {
1250 $maxcount = max($maxcount, $value);
1251 }
1252
1253 // Sort tags alphabetically: case insensitive, support locale if avalaible.
1254 uksort($tags, function($a, $b) {
1255 // Collator is part of PHP intl.
1256 if (class_exists('Collator')) {
7eb0a832
A		 1257 $c = new Collator(setlocale(LC_COLLATE, 0));
1258 if (!intl_is_failure(intl_get_error_code())) {
1259 return $c->compare($a, $b);
1260 }
f1e96a06 1261 }
7eb0a832 1262 return strcasecmp($a, $b);
f1e96a06
A		 1263 });
1264
45034273
SS		 1265 $tagList=array();
1266 foreach($tags as $key=>$value)
f1e96a06 1267 // 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 1268 {
1e3b2740 1269 $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6);
45034273 1270 }
6fc14d53
A		 1271
1272 $data = array(
1273 'linkcount' => count($LINKSDB),
1274 'tags' => $tagList,
1275 );
1276 $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
1277
1278 foreach ($data as $key => $value) {
1279 $PAGE->assign($key, $value);
1280 }
1281
45034273 1282 $PAGE->renderPage('tagcloud');
bb8f712d 1283 exit;
45034273
SS		 1284 }
1285
38603b24
A		 1286 // Daily page.
1287 if ($targetPage == Router::$PAGE_DAILY) {
1288 showDaily($PAGE);
1289 }
1290
69c474b9
A		 1291 // ATOM feed.
1292 if ($targetPage == Router::$PAGE_ATOM) {
1293 showATOM($PAGE, $LINKSDB);
1294 }
1295
e67712ba
A		 1296 // RSS feed.
1297 if ($targetPage == Router::$PAGE_RSS) {
1298 showRSS($PAGE, $LINKSDB);
1299 }
1300
8f8113b9
A		 1301 // Display openseach plugin (XML)
1302 if ($targetPage == Router::$PAGE_OPENSEARCH) {
1303 header('Content-Type: application/xml; charset=utf-8');
1304 $PAGE->assign('serverurl', index_url($_SERVER));
1305 $PAGE->renderPage('opensearch');
1306 exit;
1307 }
1308
45034273
SS		 1309 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1310 if (isset($_GET['addtag']))
1311 {
1312 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1313 if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
1314 parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
732e683b 1315
775803a0
A		 1316 // Prevent redirection loop
1317 if (isset($params['addtag'])) {
1318 unset($params['addtag']);
1319 }
1320
732e683b
FE		 1321 // Check if this tag is already in the search query and ignore it if it is.
1322 // Each tag is always separated by a space
6ac95d9c
A		 1323 if (isset($params['searchtags'])) {
1324 $current_tags = explode(' ', $params['searchtags']);
1325 } else {
1326 $current_tags = array();
1327 }
732e683b
FE		 1328 $addtag = true;
1329 foreach ($current_tags as $value) {
1330 if ($value === $_GET['addtag']) {
1331 $addtag = false;
1332 break;
1333 }
1334 }
1335 // Append the tag if necessary
1336 if (empty($params['searchtags'])) {
1337 $params['searchtags'] = trim($_GET['addtag']);
1338 }
1339 else if ($addtag) {
1340 $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
1341 }
1342
45034273
SS		 1343 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1344 header('Location: ?'.http_build_query($params));
1345 exit;
1346 }
1347
1348 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
775803a0 1349 if (isset($_GET['removetag'])) {
45034273 1350 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
775803a0
A		 1351 if (empty($_SERVER['HTTP_REFERER'])) {
1352 header('Location: ?');
1353 exit;
1354 }
1355
1356 // In case browser does not send HTTP_REFERER
1357 parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
1358
1359 // Prevent redirection loop
1360 if (isset($params['removetag'])) {
1361 unset($params['removetag']);
1362 }
1363
1364 if (isset($params['searchtags'])) {
822bffce 1365 $tags = explode(' ', $params['searchtags']);
2c75f8e7
A		 1366 // Remove value from array $tags.
1367 $tags = array_diff($tags, array($_GET['removetag']));
1368 $params['searchtags'] = implode(' ',$tags);
1369
1370 if (empty($params['searchtags'])) {
775803a0 1371 unset($params['searchtags']);
775803a0 1372 }
2c75f8e7 1373
45034273
SS		 1374 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1375 }
1376 header('Location: ?'.http_build_query($params));
1377 exit;
1378 }
1379
1380 // -------- User wants to change the number of links per page (linksperpage=...)
775803a0
A		 1381 if (isset($_GET['linksperpage'])) {
1382 if (is_numeric($_GET['linksperpage'])) {
1383 $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
1384 }
1385
1386 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
45034273
SS		 1387 exit;
1388 }
bb8f712d 1389
45034273 1390 // -------- User wants to see only private links (toggle)
775803a0
A		 1391 if (isset($_GET['privateonly'])) {
1392 if (empty($_SESSION['privateonly'])) {
1393 $_SESSION['privateonly'] = 1; // See only private links
1394 } else {
45034273
SS		 1395 unset($_SESSION['privateonly']); // See all links
1396 }
775803a0
A		 1397
1398 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
45034273
SS		 1399 exit;
1400 }
1401
1402 // -------- Handle other actions allowed for non-logged in users:
1403 if (!isLoggedIn())
1404 {
ad6c27b7 1405 // User tries to post new link but is not logged in:
45034273
SS		 1406 // Show login screen, then redirect to ?post=...
1407 if (isset($_GET['post']))
1408 {
a1795ddc 1409 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($_GET['source']):'')); // Redirect to login page, then back to post link.
45034273
SS		 1410 exit;
1411 }
aedc912d
FE		 1412
1413 // Same case as above except that user tried to access ?do=addlink without being logged in
1414 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1415 if (isset($_GET['do']) && $_GET['do'] === 'addlink') {
1416 header('Location: ?do=login&post=');
1417 exit;
1418 }
6fc14d53 1419 showLinkList($PAGE, $LINKSDB);
5fbabbb9
A		 1420 if (isset($_GET['edit_link'])) {
1421 header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
1422 exit;
1423 }
1424
ad6c27b7 1425 exit; // Never remove this one! All operations below are reserved for logged in user.
45034273
SS		 1426 }
1427
1428 // -------- All other functions are reserved for the registered user:
1429
1430 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
6fc14d53 1431 if ($targetPage == Router::$PAGE_TOOLS)
45034273 1432 {
6fc14d53
A		 1433 $data = array(
1434 'linkcount' => count($LINKSDB),
1435 'pageabsaddr' => index_url($_SERVER),
1436 );
1437 $pluginManager->executeHooks('render_tools', $data);
1438
1439 foreach ($data as $key => $value) {
1440 $PAGE->assign($key, $value);
1441 }
1442
45034273
SS		 1443 $PAGE->renderPage('tools');
1444 exit;
1445 }
1446
1447 // -------- User wants to change his/her password.
6fc14d53 1448 if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
45034273
SS		 1449 {
1450 if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.');
1451 if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
1452 {
ad6c27b7 1453 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1454
1455 // Make sure old password is correct.
1456 $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
fe16b01e 1457 if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
45034273
SS		 1458 // Save new password
1459 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
1460 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
dd484b90
A		 1461 try {
1462 writeConfig($GLOBALS, isLoggedIn());
1463 }
1464 catch(Exception $e) {
1465 error_log(
1466 'ERROR while writing config file after changing password.' . PHP_EOL .
1467 $e->getMessage()
1468 );
1469
1470 // TODO: do not handle exceptions/errors in JS.
1471 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1472 exit;
1473 }
fe16b01e 1474 echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
45034273
SS		 1475 exit;
1476 }
1477 else // show the change password form.
1478 {
45034273
SS		 1479 $PAGE->assign('linkcount',count($LINKSDB));
1480 $PAGE->assign('token',getToken());
1481 $PAGE->renderPage('changepassword');
1482 exit;
1483 }
1484 }
1485
1486 // -------- User wants to change configuration
6fc14d53 1487 if ($targetPage == Router::$PAGE_CONFIGURE)
45034273
SS		 1488 {
1489 if (!empty($_POST['title']) )
1490 {
ad6c27b7 1491 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1492 $tz = 'UTC';
1493 if (!empty($_POST['continent']) && !empty($_POST['city']))
d1e2f8e5 1494 if (isTimeZoneValid($_POST['continent'],$_POST['city']))
45034273
SS		 1495 $tz = $_POST['continent'].'/'.$_POST['city'];
1496 $GLOBALS['timezone'] = $tz;
1497 $GLOBALS['title']=$_POST['title'];
ebb2880d 1498 $GLOBALS['titleLink']=$_POST['titleLink'];
45034273
SS		 1499 $GLOBALS['redirector']=$_POST['redirector'];
1500 $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
bb8f712d 1501 $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
ed5b38dd 1502 $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']);
329e0768 1503 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
caee7ff9 1504 $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']);
dd484b90
A		 1505 try {
1506 writeConfig($GLOBALS, isLoggedIn());
1507 }
1508 catch(Exception $e) {
1509 error_log(
1510 'ERROR while writing config file after configuration update.' . PHP_EOL .
1511 $e->getMessage()
1512 );
1513
1514 // TODO: do not handle exceptions/errors in JS.
1515 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1516 exit;
1517 }
fe16b01e 1518 echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
45034273
SS		 1519 exit;
1520 }
1521 else // Show the configuration form.
1522 {
45034273
SS		 1523 $PAGE->assign('linkcount',count($LINKSDB));
1524 $PAGE->assign('token',getToken());
5f85fcd8
A		 1525 $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] );
1526 $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] );
d1e2f8e5
V		 1527 list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']);
1528 $PAGE->assign('timezone_form', $timezone_form);
45034273
SS		 1529 $PAGE->assign('timezone_js',$timezone_js);
1530 $PAGE->renderPage('configure');
1531 exit;
1532 }
1533 }
1534
1535 // -------- User wants to rename a tag or delete it
6fc14d53 1536 if ($targetPage == Router::$PAGE_CHANGETAG)
45034273 1537 {
6a6aa2b9
A		 1538 if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
1539 $PAGE->assign('linkcount', count($LINKSDB));
1540 $PAGE->assign('token', getToken());
bdd1715b 1541 $PAGE->assign('tags', $LINKSDB->allTags());
45034273
SS		 1542 $PAGE->renderPage('changetag');
1543 exit;
1544 }
6a6aa2b9
A		 1545
1546 if (!tokenOk($_POST['token'])) {
1547 die('Wrong token.');
1548 }
45034273
SS		 1549
1550 // Delete a tag:
6a6aa2b9 1551 if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
45034273 1552 $needle=trim($_POST['fromtag']);
822bffce
A		 1553 // True for case-sensitive tag search.
1554 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1555 foreach($linksToAlter as $key=>$value)
1556 {
1557 $tags = explode(' ',trim($value['tags']));
1558 unset($tags[array_search($needle,$tags)]); // Remove tag.
1559 $value['tags']=trim(implode(' ',$tags));
1560 $LINKSDB[$key]=$value;
1561 }
2e28269b 1562 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
fe16b01e 1563 echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
45034273
SS		 1564 exit;
1565 }
1566
1567 // Rename a tag:
6a6aa2b9 1568 if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
45034273 1569 $needle=trim($_POST['fromtag']);
822bffce
A		 1570 // True for case-sensitive tag search.
1571 $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true);
45034273
SS		 1572 foreach($linksToAlter as $key=>$value)
1573 {
1574 $tags = explode(' ',trim($value['tags']));
ad6c27b7 1575 $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value.
45034273
SS		 1576 $value['tags']=trim(implode(' ',$tags));
1577 $LINKSDB[$key]=$value;
1578 }
01e48f26 1579 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk.
fe16b01e 1580 echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
45034273
SS		 1581 exit;
1582 }
1583 }
1584
ad6c27b7 1585 // -------- User wants to add a link without using the bookmarklet: Show form.
6fc14d53 1586 if ($targetPage == Router::$PAGE_ADDLINK)
45034273 1587 {
45034273
SS		 1588 $PAGE->assign('linkcount',count($LINKSDB));
1589 $PAGE->renderPage('addlink');
1590 exit;
1591 }
1592
1593 // -------- User clicked the "Save" button when editing a link: Save link to database.
1594 if (isset($_POST['save_edit']))
1595 {
5a23950c
A		 1596 // Go away!
1597 if (! tokenOk($_POST['token'])) {
1598 die('Wrong token.');
1599 }
1600 // Remove multiple spaces.
1601 $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags']));
ce354bf1
A		 1602 // Remove first '-' char in tags.
1603 $tags = preg_replace('/(^| )\-/', '$1', $tags);
5a23950c
A		 1604 // Remove duplicates.
1605 $tags = implode(' ', array_unique(explode(' ', $tags)));
1606 $linkdate = $_POST['lf_linkdate'];
feebc6d4 1607 $url = trim($_POST['lf_url']);
5a23950c
A		 1608 if (! startsWith($url, 'http:') && ! startsWith($url, 'https:')
1609 && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:')
1610 && ! startsWith($url, '?') && ! startsWith($url, 'javascript:')
1611 ) {
1612 $url = 'http://' . $url;
1613 }
1614
1615 $link = array(
1616 'title' => trim($_POST['lf_title']),
1617 'url' => $url,
ed853da7 1618 'description' => $_POST['lf_description'],
5a23950c
A		 1619 'private' => (isset($_POST['lf_private']) ? 1 : 0),
1620 'linkdate' => $linkdate,
1621 'tags' => str_replace(',', ' ', $tags)
1622 );
1623 // If title is empty, use the URL as title.
1624 if ($link['title'] == '') {
1625 $link['title'] = $link['url'];
1626 }
6fc14d53
A		 1627
1628 $pluginManager->executeHooks('save_link', $link);
1629
45034273 1630 $LINKSDB[$linkdate] = $link;
5a23950c 1631 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1632 pubsubhub();
1633
1634 // If we are called from the bookmarklet, we must close the popup:
d01c2342
A		 1635 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1636 echo '<script>self.close();</script>';
1637 exit;
1638 }
1639
fd50e14c 1640 $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
775803a0 1641 $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
5a23950c
A		 1642 // Scroll to the link which has been edited.
1643 $location .= '#' . smallHash($_POST['lf_linkdate']);
1644 // After saving the link, redirect to the page the user was on.
1645 header('Location: '. $location);
45034273
SS		 1646 exit;
1647 }
1648
1649 // -------- User clicked the "Cancel" button when editing a link.
1650 if (isset($_POST['cancel_edit']))
1651 {
ad6c27b7 1652 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1653 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
45034273 1654 $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
b342b2a4 1655 $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
775803a0 1656 $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
45034273
SS		 1657 header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
1658 exit;
1659 }
1660
ad6c27b7 1661 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
45034273
SS		 1662 if (isset($_POST['delete_link']))
1663 {
1664 if (!tokenOk($_POST['token'])) die('Wrong token.');
1665 // We do not need to ask for confirmation:
ad6c27b7 1666 // - confirmation is handled by JavaScript
45034273
SS		 1667 // - we are protected from XSRF by the token.
1668 $linkdate=$_POST['lf_linkdate'];
6fc14d53
A		 1669
1670 $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]);
1671
45034273 1672 unset($LINKSDB[$linkdate]);
01e48f26 1673 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk
45034273
SS		 1674
1675 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1676 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
d528433d 1677 // Pick where we're going to redirect
1678 // =============================================================
1679 // Basically, we can't redirect to where we were previously if it was a permalink
1680 // or an edit_link, because it would 404.
1681 // Cases:
1682 // - / : nothing in $_GET, redirect to self
1683 // - /?page : redirect to self
d33c5d4c 1684 // - /?searchterm : redirect to self (there might be other links)
d528433d 1685 // - /?searchtags : redirect to self
1686 // - /permalink : redirect to / (the link does not exist anymore)
1687 // - /?edit_link : redirect to / (the link does not exist anymore)
1688 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1689 // redirect is not satisfied, and only then redirect to /
1690 $location = "?";
1691 // Self redirection
775803a0
A		 1692 if (count($_GET) == 0
1693 || isset($_GET['page'])
1694 || isset($_GET['searchterm'])
1695 || isset($_GET['searchtags'])
1696 ) {
d528433d 1697 if (isset($_POST['returnurl'])) {
1698 $location = $_POST['returnurl']; // Handle redirects given by the form
775803a0
A		 1699 } else {
1700 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
d528433d 1701 }
1702 }
1703
1704 header('Location: ' . $location); // After deleting the link, redirect to appropriate location
45034273
SS		 1705 exit;
1706 }
1707
1708 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1709 if (isset($_GET['edit_link']))
1710 {
1711 $link = $LINKSDB[$_GET['edit_link']]; // Read database
1712 if (!$link) { header('Location: ?'); exit; } // Link not found in database.
6fc14d53
A		 1713 $data = array(
1714 'linkcount' => count($LINKSDB),
1715 'link' => $link,
1716 'link_is_new' => false,
1717 'token' => getToken(),
1718 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1719 'tags' => $LINKSDB->allTags(),
1720 );
1721 $pluginManager->executeHooks('render_editlink', $data);
1722
1723 foreach ($data as $key => $value) {
1724 $PAGE->assign($key, $value);
1725 }
1726
45034273
SS		 1727 $PAGE->renderPage('editlink');
1728 exit;
1729 }
1730
1731 // -------- User want to post a new link: Display link edit form.
d9d776af 1732 if (isset($_GET['post'])) {
1557cefb 1733 $url = cleanup_url(escape($_GET['post']));
45034273
SS		 1734
1735 $link_is_new = false;
9e1724f1 1736 // Check if URL is not already in database (in this case, we will edit the existing link)
ef591e7e 1737 $link = $LINKSDB->getLinkFromUrl($url);
45034273
SS		 1738 if (!$link)
1739 {
9e1724f1 1740 $link_is_new = true;
45034273 1741 $linkdate = strval(date('Ymd_His'));
9e1724f1 1742 // Get title if it was provided in URL (by the bookmarklet).
739dc243 1743 $title = empty($_GET['title']) ? '' : escape($_GET['title']);
9e1724f1 1744 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
739dc243
A		 1745 $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1746 $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1747 $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
26c50346 1748 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
ef591e7e 1749 if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
451314eb 1750 // Short timeout to keep the application responsive
1557cefb 1751 list($headers, $content) = get_http_response($url, 4);
451314eb 1752 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 1753 // Retrieve charset.
1754 $charset = get_charset($headers, $content);
1755 // Extract title.
1756 $title = html_extract_title($content);
1757 // Re-encode title in utf-8 if necessary.
1758 if (! empty($title) && $charset != 'utf-8') {
1759 $title = mb_convert_encoding($title, $charset, 'utf-8');
9e1724f1
A		 1760 }
1761 }
45034273 1762 }
1557cefb 1763
9e1724f1
A		 1764 if ($url == '') {
1765 $url = '?' . smallHash($linkdate);
1766 $title = 'Note: ';
27646ca5 1767 }
1557cefb 1768
9e1724f1
A		 1769 $link = array(
1770 'linkdate' => $linkdate,
1771 'title' => $title,
ef591e7e 1772 'url' => $url,
9e1724f1
A		 1773 'description' => $description,
1774 'tags' => $tags,
1775 'private' => $private
1776 );
45034273
SS		 1777 }
1778
6fc14d53
A		 1779 $data = array(
1780 'linkcount' => count($LINKSDB),
1781 'link' => $link,
1782 'link_is_new' => $link_is_new,
1783 'token' => getToken(), // XSRF protection.
1784 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1785 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1786 'tags' => $LINKSDB->allTags(),
1787 );
1788 $pluginManager->executeHooks('render_editlink', $data);
1789
1790 foreach ($data as $key => $value) {
1791 $PAGE->assign($key, $value);
1792 }
1793
45034273
SS		 1794 $PAGE->renderPage('editlink');
1795 exit;
1796 }
1797
1798 // -------- Export as Netscape Bookmarks HTML file.
6fc14d53 1799 if ($targetPage == Router::$PAGE_EXPORT)
45034273
SS		 1800 {
1801 if (empty($_GET['what']))
1802 {
45034273
SS		 1803 $PAGE->assign('linkcount',count($LINKSDB));
1804 $PAGE->renderPage('export');
1805 exit;
1806 }
1807 $exportWhat=$_GET['what'];
ad6c27b7 1808 if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???');
45034273
SS		 1809
1810 header('Content-Type: text/html; charset=utf-8');
1811 header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html');
1812 $currentdate=date('Y/m/d H:i:s');
1813 echo <<<HTML
1814<!DOCTYPE NETSCAPE-Bookmark-file-1>
1815<!-- This is an automatically generated file.
1816 It will be read and overwritten.
1817 DO NOT EDIT! -->
1818<!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1819<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1820<TITLE>Bookmarks</TITLE>
1821<H1>Bookmarks</H1>
1822HTML;
1823 foreach($LINKSDB as $link)
1824 {
1825 if ($exportWhat=='all' ||
1826 ($exportWhat=='private' && $link['private']!=0) ||
1827 ($exportWhat=='public' && $link['private']==0))
1828 {
205a4277
V		 1829 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
1830 echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.$date->getTimestamp().'" PRIVATE="'.$link['private'].'"';
5f85fcd8
A		 1831 if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"';
1832 echo '>'.$link['title']."</A>\n";
1833 if ($link['description']!='') echo '<DD>'.$link['description']."\n";
45034273
SS		 1834 }
1835 }
1836 exit;
1837 }
1838
1839 // -------- User is uploading a file for import
1840 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload'))
1841 {
1842 // If file is too big, some form field may be missing.
1843 if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
1844 {
1845 $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
5f85fcd8 1846 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>';
45034273
SS		 1847 exit;
1848 }
1849 if (!tokenOk($_POST['token'])) die('Wrong token.');
1850 importFile();
1851 exit;
1852 }
1853
1854 // -------- Show upload/import dialog:
6fc14d53 1855 if ($targetPage == Router::$PAGE_IMPORT)
45034273 1856 {
45034273
SS		 1857 $PAGE->assign('linkcount',count($LINKSDB));
1858 $PAGE->assign('token',getToken());
1859 $PAGE->assign('maxfilesize',getMaxFileSize());
1860 $PAGE->renderPage('import');
1861 exit;
1862 }
1863
dea0ba28
A		 1864 // Plugin administration page
1865 if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1866 $pluginMeta = $pluginManager->getPluginsMeta();
1867
1868 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1869 $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
1870 // Load parameters.
1871 $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $GLOBALS['plugins']);
1872 uasort(
1873 $enabledPlugins,
1874 function($a, $b) { return $a['order'] - $b['order']; }
1875 );
1876 $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
1877
1878 $PAGE->assign('enabledPlugins', $enabledPlugins);
1879 $PAGE->assign('disabledPlugins', $disabledPlugins);
1880 $PAGE->renderPage('pluginsadmin');
1881 exit;
1882 }
1883
1884 // Plugin administration form action
1885 if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1886 try {
1887 if (isset($_POST['parameters_form'])) {
1888 unset($_POST['parameters_form']);
1889 foreach ($_POST as $param => $value) {
1890 $GLOBALS['plugins'][$param] = escape($value);
1891 }
1892 }
1893 else {
1894 $GLOBALS['config']['ENABLED_PLUGINS'] = save_plugin_config($_POST);
1895 }
1896 writeConfig($GLOBALS, isLoggedIn());
1897 }
1898 catch (Exception $e) {
1899 error_log(
1900 'ERROR while saving plugin configuration:.' . PHP_EOL .
1901 $e->getMessage()
1902 );
1903
1904 // TODO: do not handle exceptions/errors in JS.
59edea42 1905 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>';
dea0ba28
A		 1906 exit;
1907 }
1908 header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
1909 exit;
1910 }
1911
45034273 1912 // -------- Otherwise, simply display search form and links:
6fc14d53 1913 showLinkList($PAGE, $LINKSDB);
45034273
SS		 1914 exit;
1915}
1916
1917// -----------------------------------------------------------------------------------------------
1918// Process the import file form.
1919function importFile()
1920{
02ad8fb6 1921 if (!isLoggedIn()) { die('Not allowed.'); }
9f15ca9e 1922 $LINKSDB = new LinkDB(
9c8752a2 1923 $GLOBALS['config']['DATASTORE'],
02ad8fb6 1924 isLoggedIn(),
90e5bd65
A		 1925 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
1926 $GLOBALS['redirector']
9f15ca9e 1927 );
45034273
SS		 1928 $filename=$_FILES['filetoupload']['name'];
1929 $filesize=$_FILES['filetoupload']['size'];
1930 $data=file_get_contents($_FILES['filetoupload']['tmp_name']);
ad6c27b7 1931 $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private?
1932 $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones?
45034273
SS		 1933 $import_count=0;
1934
1935 // Sniff file type:
1936 $type='unknown';
1937 if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
1938
1939 // Then import the bookmarks.
1940 if ($type=='netscape')
1941 {
1942 // This is a standard Netscape-style bookmark file.
ad6c27b7 1943 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
45034273
SS		 1944 foreach(explode('<DT>',$data) as $html) // explode is very fast
1945 {
1946 $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
1947 $d = explode('<DD>',$html);
1948 if (startswith($d[0],'<A '))
1949 {
1950 $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
1951 preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title
1952 $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8');
1953 preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes
1954 $raw_add_date=0;
1955 foreach($matches as $m)
1956 {
1957 $attr=$m[1]; $value=$m[2];
1958 if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8');
fc93ae1d
AA		 1959 elseif ($attr=='ADD_DATE')
1960 {
1961 $raw_add_date=intval($value);
1962 if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1963 }
45034273
SS		 1964 elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1);
1965 elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8');
1966 }
1967 if ($link['url']!='')
1968 {
1969 if ($private==1) $link['private']=1;
1970 $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database.
1971 if ($dblink==false)
1972 { // Link not in database, let's import it...
1973 if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE
1974
1975 // Make sure date/time is not already used by another link.
1976 // (Some bookmark files have several different links with the same ADD_DATE)
ad6c27b7 1977 // We increment date by 1 second until we find a date which is not used in DB.
45034273
SS		 1978 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1979 while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly.
1980 $link['linkdate']=date('Ymd_His',$raw_add_date);
1981 $LINKSDB[$link['linkdate']] = $link;
1982 $import_count++;
1983 }
ad6c27b7 1984 else // Link already present in database.
45034273
SS		 1985 {
1986 if ($overwrite)
1987 { // If overwrite is required, we import link data, except date/time.
1988 $link['linkdate']=$dblink['linkdate'];
1989 $LINKSDB[$link['linkdate']] = $link;
1990 $import_count++;
1991 }
1992 }
1993
1994 }
1995 }
1996 }
01e48f26 1997 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273 1998
fe16b01e 1999 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
45034273
SS		 2000 }
2001 else
2002 {
fe16b01e 2003 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
45034273
SS		 2004 }
2005}
2006
2007// -----------------------------------------------------------------------------------------------
2008// Template for the list of links (<div id="linklist">)
2009// This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
2010function buildLinkList($PAGE,$LINKSDB)
2011{
c51fae92
A		 2012 // Filter link database according to parameters.
2013 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
2014 $searchterm = !empty($_GET['searchterm']) ? escape(trim($_GET['searchterm'])) : '';
822bffce
A		 2015 $privateonly = !empty($_SESSION['privateonly']) ? true : false;
2016
c51fae92
A		 2017 // Search tags + fullsearch.
2018 if (! empty($searchtags) && ! empty($searchterm)) {
2019 $linksToDisplay = $LINKSDB->filter(
2020 LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
2021 array($searchtags, $searchterm),
2022 false,
2023 $privateonly
2024 );
822bffce 2025 }
c51fae92
A		 2026 // Search by tags.
2027 elseif (! empty($searchtags)) {
2028 $linksToDisplay = $LINKSDB->filter(
2029 LinkFilter::$FILTER_TAG,
2030 $searchtags,
2031 false,
2032 $privateonly
2033 );
2034 }
2035 // Fulltext search.
2036 elseif (! empty($searchterm)) {
2037 $linksToDisplay = $LINKSDB->filter(
2038 LinkFilter::$FILTER_TEXT,
2039 $searchterm,
2040 false,
2041 $privateonly
2042 );
822bffce
A		 2043 }
2044 // Detect smallHashes in URL.
c51fae92
A		 2045 elseif (! empty($_SERVER['QUERY_STRING'])
2046 && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/', $_SERVER['QUERY_STRING'])
2047 ) {
2048 $linksToDisplay = $LINKSDB->filter(
2049 LinkFilter::$FILTER_HASH,
2050 substr(trim($_SERVER["QUERY_STRING"], '/'), 0, 6)
2051 );
822bffce
A		 2052
2053 if (count($linksToDisplay) == 0) {
f4c84ad7 2054 $PAGE->render404('The link you are trying to reach does not exist or has been deleted.');
45034273
SS		 2055 exit;
2056 }
45034273 2057 }
822bffce
A		 2058 // Otherwise, display without filtering.
2059 else {
2060 $linksToDisplay = $LINKSDB->filter('', '', false, $privateonly);
45034273
SS		 2061 }
2062
2063 // ---- Handle paging.
822bffce
A		 2064 $keys = array();
2065 foreach ($linksToDisplay as $key => $value) {
2066 $keys[] = $key;
2067 }
45034273
SS		 2068
2069 // If there is only a single link, we change on-the-fly the title of the page.
822bffce
A		 2070 if (count($linksToDisplay) == 1) {
2071 $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
2072 }
45034273
SS		 2073
2074 // Select articles according to paging.
822bffce
A		 2075 $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
2076 $pagecount = $pagecount == 0 ? 1 : $pagecount;
2077 $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
2078 $page = $page < 1 ? 1 : $page;
2079 $page = $page > $pagecount ? $pagecount : $page;
2080 // Start index.
2081 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
2082 $end = $i + $_SESSION['LINKS_PER_PAGE'];
2083 $linkDisp = array();
45034273
SS		 2084 while ($i<$end && $i<count($keys))
2085 {
2086 $link = $linksToDisplay[$keys[$i]];
90e5bd65 2087 $link['description'] = format_description($link['description'], $GLOBALS['redirector']);
822bffce
A		 2088 $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
2089 $link['class'] = $link['private'] == 0 ? $classLi : 'private';
205a4277
V		 2090 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
2091 $link['timestamp'] = $date->getTimestamp();
822bffce 2092 $taglist = explode(' ', $link['tags']);
a5752e77 2093 uasort($taglist, 'strcasecmp');
822bffce 2094 $link['taglist'] = $taglist;
6fc14d53 2095 $link['shorturl'] = smallHash($link['linkdate']);
822bffce
A		 2096 // Check for both signs of a note: starting with ? and 7 chars long.
2097 if ($link['url'][0] === '?' &&
2098 strlen($link['url']) === 7) {
2099 $link['url'] = index_url($_SERVER) . $link['url'];
b47f515a 2100 }
d33c5d4c 2101
45034273
SS		 2102 $linkDisp[$keys[$i]] = $link;
2103 $i++;
2104 }
bb8f712d 2105
45034273 2106 // Compute paging navigation
c51fae92
A		 2107 $searchtagsUrl = empty($searchtags) ? '' : '&searchtags=' . urlencode($searchtags);
2108 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
822bffce
A		 2109 $previous_page_url = '';
2110 if ($i != count($keys)) {
c51fae92 2111 $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
822bffce
A		 2112 }
2113 $next_page_url='';
2114 if ($page>1) {
c51fae92 2115 $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
822bffce 2116 }
45034273 2117
c51fae92 2118 $token = isLoggedIn() ? getToken() : '';
bb8f712d 2119
45034273 2120 // Fill all template fields.
6fc14d53
A		 2121 $data = array(
2122 'linkcount' => count($LINKSDB),
2123 'previous_page_url' => $previous_page_url,
2124 'next_page_url' => $next_page_url,
2125 'page_current' => $page,
2126 'page_max' => $pagecount,
2127 'result_count' => count($linksToDisplay),
c51fae92
A		 2128 'search_term' => $searchterm,
2129 'search_tags' => $searchtags,
6fc14d53
A		 2130 'redirector' => empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'], // Optional redirector URL.
2131 'token' => $token,
2132 'links' => $linkDisp,
2133 'tags' => $LINKSDB->allTags(),
2134 );
18cca483
A		 2135 // FIXME! temporary fix - see #399.
2136 if (!empty($GLOBALS['pagetitle']) && count($linkDisp) == 1) {
2137 $data['pagetitle'] = $GLOBALS['pagetitle'];
2138 }
6fc14d53
A		 2139
2140 $pluginManager = PluginManager::getInstance();
2141 $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
2142
2143 foreach ($data as $key => $value) {
2144 $PAGE->assign($key, $value);
2145 }
2146
45034273
SS		 2147 return;
2148}
2149
2150// Compute the thumbnail for a link.
bb8f712d 2151//
ad6c27b7 2152// With a link to the original URL.
45034273 2153// Understands various services (youtube.com...)
ad6c27b7 2154// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2155// $href = if provided, this URL will be followed instead of $url
2156// Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
2157// Some of them may be missing.
2158// Return an empty array if no thumbnail available.
2159function computeThumbnail($url,$href=false)
2160{
2161 if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
2162 if ($href==false) $href=$url;
2163
2164 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
ad6c27b7 2165 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
45034273
SS		 2166 // ^^^^^^^^^^^ ^^^^^^^^^^^
2167 $domain = parse_url($url,PHP_URL_HOST);
2168 if ($domain=='youtube.com' || $domain=='www.youtube.com')
2169 {
2170 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1a663a0f 2171 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
45034273
SS		 2172 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
2173 }
2174 if ($domain=='youtu.be') // Youtube short links
2175 {
2176 $path = parse_url($url,PHP_URL_PATH);
1a663a0f 2177 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
bb8f712d 2178 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
45034273
SS		 2179 }
2180 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
2181 {
2182 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
2183 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
bb8f712d
KT		 2184 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
2185 }
2186
45034273
SS		 2187 if ($domain=='imgur.com')
2188 {
2189 $path = parse_url($url,PHP_URL_PATH);
2190 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1a663a0f 2191 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
45034273 2192 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1a663a0f 2193 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
45034273
SS		 2194 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2195
1a663a0f 2196 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
45034273
SS		 2197 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2198 }
2199 if ($domain=='i.imgur.com')
2200 {
2201 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1a663a0f 2202 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
45034273
SS		 2203 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
2204 }
2205 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
2206 {
2207 if (strpos($url,'dailymotion.com/video/')!==false)
2208 {
2209 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
2210 return array('src'=>$thumburl,
2211 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
2212 }
2213 }
2214 if (endsWith($domain,'.imageshack.us'))
2215 {
2216 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2217 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2218 {
2219 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
2220 return array('src'=>$thumburl,
2221 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
2222 }
2223 }
2224
2225 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2226 // So we deport the thumbnail generation in order not to slow down page generation
2227 // (and we also cache the thumbnail)
2228
2229 if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2230
2231 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
2232 || $domain=='vimeo.com'
2233 || $domain=='ted.com' || endsWith($domain,'.ted.com')
2234 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
2235 )
2236 {
2237 if ($domain=='vimeo.com')
ad6c27b7 2238 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
45034273
SS		 2239 $path = parse_url($url,PHP_URL_PATH);
2240 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
2241 }
2242 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
ad6c27b7 2243 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
45034273
SS		 2244 $path = parse_url($url,PHP_URL_PATH);
2245 if (!preg_match('!/\d+.+?!',$path)) return array();
2246 }
2247 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
ad6c27b7 2248 { // Make sure this TED URL points to a video (/talks/...)
45034273
SS		 2249 $path = parse_url($url,PHP_URL_PATH);
2250 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
2251 }
2252 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2253 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
45034273
SS		 2254 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
2255 }
2256
2257 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2258 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2259 // But using the extension will do.
2260 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
2261 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
2262 {
2263 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 2264 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
bb8f712d 2265 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
45034273
SS		 2266 }
2267 return array(); // No thumbnail.
2268
2269}
2270
2271
2272// Returns the HTML code to display a thumbnail for a link
2273// with a link to the original URL.
2274// Understands various services (youtube.com...)
ad6c27b7 2275// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2276// $href = if provided, this URL will be followed instead of $url
2277// Returns '' if no thumbnail available.
2278function thumbnail($url,$href=false)
2279{
2280 $t = computeThumbnail($url,$href);
2281 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
bb8f712d 2282
5f85fcd8
A		 2283 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
2284 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2285 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2286 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2287 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273
SS		 2288 $html.='></a>';
2289 return $html;
2290}
2291
45034273
SS		 2292// Returns the HTML code to display a thumbnail for a link
2293// for the picture wall (using lazy image loading)
2294// Understands various services (youtube.com...)
ad6c27b7 2295// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 2296// $href = if provided, this URL will be followed instead of $url
2297// Returns '' if no thumbnail available.
2298function lazyThumbnail($url,$href=false)
2299{
bb8f712d 2300 $t = computeThumbnail($url,$href);
45034273
SS		 2301 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
2302
5f85fcd8 2303 $html='<a href="'.escape($t['href']).'">';
bb8f712d 2304
34047d23 2305 // Lazy image
5f85fcd8 2306 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
858c5c2b 2307
5f85fcd8
A		 2308 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2309 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2310 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2311 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2312 $html.='>';
bb8f712d 2313
ad6c27b7 2314 // No-JavaScript fallback.
5f85fcd8
A		 2315 $html.='<noscript><img src="'.escape($t['src']).'"';
2316 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
2317 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
2318 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
2319 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 2320 $html.='></noscript></a>';
bb8f712d 2321
45034273
SS		 2322 return $html;
2323}
2324
2325
2326// -----------------------------------------------------------------------------------------------
2327// Installation
2328// This function should NEVER be called if the file data/config.php exists.
2329function install()
2330{
2331 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
f6a6ca0a 2332 if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
45034273 2333
f37664a2
SS		 2334
2335 // This part makes sure sessions works correctly.
2336 // (Because on some hosts, session.save_path may not be set correctly,
2337 // or we may not have write access to it.)
2338 if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
2339 { // Step 2: Check if data in session is correct.
2340 echo '<pre>Sessions do not seem to work correctly on your server.<br>';
2341 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
01ec1791 2342 echo 'It currently points to '.session_save_path().'<br>';
2343 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
2344 echo '<br><a href="?">Click to try again.</a></pre>';
f37664a2
SS		 2345 die;
2346 }
2347 if (!isset($_SESSION['session_tested']))
2348 { // Step 1 : Try to store data in session and reload page.
2349 $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
482d67bd 2350 header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
f37664a2
SS		 2351 }
2352 if (isset($_GET['test_session']))
ad6c27b7 2353 { // Step 3: Sessions are OK. Remove test parameter from URL.
482d67bd 2354 header('Location: '.index_url($_SERVER));
f37664a2
SS		 2355 }
2356
2357
45034273
SS		 2358 if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
2359 {
2360 $tz = 'UTC';
d1e2f8e5
V		 2361 if (!empty($_POST['continent']) && !empty($_POST['city'])) {
2362 if (isTimeZoneValid($_POST['continent'], $_POST['city'])) {
45034273 2363 $tz = $_POST['continent'].'/'.$_POST['city'];
d1e2f8e5
V		 2364 }
2365 }
45034273
SS		 2366 $GLOBALS['timezone'] = $tz;
2367 // Everything is ok, let's create config file.
2368 $GLOBALS['login'] = $_POST['setlogin'];
2369 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
2370 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
482d67bd 2371 $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] );
329e0768 2372 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
dd484b90
A		 2373 try {
2374 writeConfig($GLOBALS, isLoggedIn());
2375 }
2376 catch(Exception $e) {
2377 error_log(
2378 'ERROR while writing config file after installation.' . PHP_EOL .
2379 $e->getMessage()
2380 );
2381
2382 // TODO: do not handle exceptions/errors in JS.
2383 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
2384 exit;
2385 }
fe16b01e 2386 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
45034273
SS		 2387 exit;
2388 }
2389
2390 // Display config form:
d1e2f8e5
V		 2391 list($timezone_form, $timezone_js) = generateTimeZoneForm();
2392 $timezone_html = '';
2393 if ($timezone_form != '') {
2394 $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
2395 }
bb8f712d 2396
45034273
SS		 2397 $PAGE = new pageBuilder;
2398 $PAGE->assign('timezone_html',$timezone_html);
2399 $PAGE->assign('timezone_js',$timezone_js);
2400 $PAGE->renderPage('install');
2401 exit;
2402}
2403
ad6c27b7 2404/* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
45034273 2405 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
ad6c27b7 2406 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2407 This function is called by passing the URL:
45034273 2408 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
ad6c27b7 2409 [URL] is the URL of the link (e.g. a flickr page)
45034273
SS		 2410 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2411 The function below will fetch the image from the webservice and store it in the cache.
2412*/
2413function genThumbnail()
2414{
2415 // Make sure the parameters in the URL were generated by us.
2416 $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']);
ad6c27b7 2417 if ($sign!=$_GET['hmac']) die('Naughty boy!');
45034273
SS		 2418
2419 // Let's see if we don't already have the image for this URL in the cache.
2420 $thumbname=hash('sha1',$_GET['url']).'.jpg';
2421 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname))
2422 { // We have the thumbnail, just serve it:
2423 header('Content-Type: image/jpeg');
2424 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname);
2425 return;
2426 }
2427 // We may also serve a blank image (if service did not respond)
2428 $blankname=hash('sha1',$_GET['url']).'.gif';
2429 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname))
2430 {
2431 header('Content-Type: image/gif');
2432 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname);
2433 return;
2434 }
2435
2436 // Otherwise, generate the thumbnail.
2437 $url = $_GET['url'];
2438 $domain = parse_url($url,PHP_URL_HOST);
2439
2440 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
2441 {
ad6c27b7 2442 // Crude replacement to handle new flickr domain policy (They prefer www. now)
45034273
SS		 2443 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
2444
2445 // Is this a link to an image, or to a flickr page ?
2446 $imageurl='';
2447 if (endswith(parse_url($url,PHP_URL_PATH),'.jpg'))
ad6c27b7 2448 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
45034273
SS		 2449 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
2450 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
2451 }
ad6c27b7 2452 else // This is a flickr page (html)
45034273 2453 {
451314eb 2454 // Get the flickr html page.
1557cefb 2455 list($headers, $content) = get_http_response($url, 20);
451314eb 2456 if (strpos($headers[0], '200 OK') !== false)
45034273 2457 {
ad6c27b7 2458 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1557cefb 2459 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
45034273
SS		 2460 if (!empty($matches[1])) $imageurl=$matches[1];
2461
2462 // In albums (and some other pages), the link rel="image_src" is not provided,
2463 // but flickr provides:
2464 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2465 if ($imageurl=='')
2466 {
1557cefb 2467 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
45034273
SS		 2468 if (!empty($matches[1])) $imageurl=$matches[1];
2469 }
2470 }
2471 }
2472
2473 if ($imageurl!='')
2474 { // Let's download the image.
451314eb 2475 // Image is 240x120, so 10 seconds to download should be enough.
1557cefb 2476 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2477 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2478 // Save image to cache.
2479 file_put_contents($GLOBALS['config']['CACHEDIR'].'/' . $thumbname, $content);
45034273 2480 header('Content-Type: image/jpeg');
1557cefb 2481 echo $content;
45034273
SS		 2482 return;
2483 }
2484 }
2485 }
2486
2487 elseif ($domain=='vimeo.com' )
2488 {
2489 // This is more complex: we have to perform a HTTP request, then parse the result.
ad6c27b7 2490 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
45034273 2491 $vid = substr(parse_url($url,PHP_URL_PATH),1);
1557cefb 2492 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
451314eb 2493 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2494 $t = unserialize($content);
45034273
SS		 2495 $imageurl = $t[0]['thumbnail_medium'];
2496 // Then we download the image and serve it to our client.
1557cefb 2497 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2498 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2499 // Save image to cache.
2500 file_put_contents($GLOBALS['config']['CACHEDIR'] . '/' . $thumbname, $content);
45034273 2501 header('Content-Type: image/jpeg');
1557cefb 2502 echo $content;
45034273
SS		 2503 return;
2504 }
2505 }
2506 }
2507
2508 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2509 {
2510 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2511 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2512 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
1557cefb 2513 list($headers, $content) = get_http_response($url, 5);
451314eb 2514 if (strpos($headers[0], '200 OK') !== false) {
45034273 2515 // Extract the link to the thumbnail
1557cefb 2516 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
45034273
SS		 2517 if (!empty($matches[1]))
2518 { // Let's download the image.
2519 $imageurl=$matches[1];
451314eb 2520 // No control on image size, so wait long enough
1557cefb 2521 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2522 if (strpos($headers[0], '200 OK') !== false) {
45034273 2523 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb 2524 file_put_contents($filepath, $content); // Save image to cache.
45034273
SS		 2525 if (resizeImage($filepath))
2526 {
2527 header('Content-Type: image/jpeg');
2528 echo file_get_contents($filepath);
2529 return;
2530 }
2531 }
2532 }
2533 }
2534 }
bb8f712d 2535
45034273
SS		 2536 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2537 {
2538 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2539 // http://xkcd.com/327/
2540 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
1557cefb 2541 list($headers, $content) = get_http_response($url, 5);
451314eb 2542 if (strpos($headers[0], '200 OK') !== false) {
45034273 2543 // Extract the link to the thumbnail
1557cefb 2544 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
45034273
SS		 2545 if (!empty($matches[1]))
2546 { // Let's download the image.
2547 $imageurl=$matches[1];
451314eb 2548 // No control on image size, so wait long enough
1557cefb 2549 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2550 if (strpos($headers[0], '200 OK') !== false) {
45034273 2551 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2552 // Save image to cache.
2553 file_put_contents($filepath, $content);
45034273
SS		 2554 if (resizeImage($filepath))
2555 {
2556 header('Content-Type: image/jpeg');
2557 echo file_get_contents($filepath);
2558 return;
2559 }
2560 }
2561 }
2562 }
bb8f712d 2563 }
45034273
SS		 2564
2565 else
2566 {
2567 // For all other domains, we try to download the image and make a thumbnail.
451314eb 2568 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
1557cefb 2569 list($headers, $content) = get_http_response($url, 30);
451314eb 2570 if (strpos($headers[0], '200 OK') !== false) {
45034273 2571 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2572 // Save image to cache.
2573 file_put_contents($filepath, $content);
45034273
SS		 2574 if (resizeImage($filepath))
2575 {
2576 header('Content-Type: image/jpeg');
2577 echo file_get_contents($filepath);
2578 return;
2579 }
2580 }
2581 }
2582
2583
2584 // Otherwise, return an empty image (8x8 transparent gif)
2585 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
2586 file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
2587 header('Content-Type: image/gif');
2588 echo $blankgif;
2589}
2590
2591// Make a thumbnail of the image (to width: 120 pixels)
2592// Returns true if success, false otherwise.
2593function resizeImage($filepath)
2594{
2595 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2596
2597 // Trick: some stupid people rename GIF as JPEG... or else.
2598 // So we really try to open each image type whatever the extension is.
2599 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2600 $im=false;
2601 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2602 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2603 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2604 if (!$im) return false; // Unable to open image (corrupted or not an image)
2605 $w = imagesx($im);
2606 $h = imagesy($im);
2607 $ystart = 0; $yheight=$h;
2608 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2609 $nw = 120; // Desired width
2610 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2611 // Resize image:
2612 $im2 = imagecreatetruecolor($nw,$nh);
2613 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2614 imageinterlace($im2,true); // For progressive JPEG.
2615 $tempname=$filepath.'_TEMP.jpg';
2616 imagejpeg($im2, $tempname, 90);
2617 imagedestroy($im);
2618 imagedestroy($im2);
9e820906 2619 unlink($filepath);
45034273
SS		 2620 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2621 return true;
2622}
2623
45034273 2624if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
45034273 2625if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
45034273
SS		 2626if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
2627renderPage();
03545ef6 2628?>
The personal, minimalist, super-fast, database free, bookmarking service - community repo