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Extract PageBuilder class from index.php
[github/shaarli/Shaarli.git] / index.php
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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 102
043eae70 103$GLOBALS['config']['REDIRECTOR_URLENCODE'] = true;
28bb2b74
V		 104
105/*
106 * Plugin configuration
107 *
108 * Warning: order matters!
109 *
110 * These settings may be be overriden in:
111 * - data/config.php
112 * - each plugin's configuration file
113 */
6fc14d53
A		 114//$GLOBALS['config']['ENABLED_PLUGINS'] = array(
115// 'qrcode', 'archiveorg', 'readityourself', 'demo_plugin', 'playvideos',
116// 'wallabag', 'markdown', 'addlink_toolbar',
117//);
6fc14d53
A		 118$GLOBALS['config']['ENABLED_PLUGINS'] = array('qrcode');
119
091e2d13
A		 120// Initialize plugin parameters array.
121$GLOBALS['plugins'] = array();
28bb2b74
V		 122
123// PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
124$GLOBALS['config']['PUBSUBHUB_URL'] = '';
125
126/*
127 * PHP configuration
128 */
797a6f30 129define('shaarli_version', '0.6.5');
28bb2b74 130
ae00595b
CH		 131// http://server.com/x/shaarli --> /shaarli/
132define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0)));
45034273 133
28bb2b74
V		 134// High execution time in case of problematic imports/exports.
135ini_set('max_input_time','60');
136
137// Try to set max upload file size and read
138ini_set('memory_limit', '128M');
45034273
SS		 139ini_set('post_max_size', '16M');
140ini_set('upload_max_filesize', '16M');
45034273 141
28bb2b74
V		 142// See all error except warnings
143error_reporting(E_ALL^E_WARNING);
144// See all errors (for debugging only)
145//error_reporting(-1);
146
147/*
148 * User configuration
149 */
50c9a12e
V		 150if (is_file($GLOBALS['config']['CONFIG_FILE'])) {
151 require_once $GLOBALS['config']['CONFIG_FILE'];
152}
153
ca74886f 154// Shaarli library
2e28269b 155require_once 'application/ApplicationUtils.php';
01e48f26
V		 156require_once 'application/Cache.php';
157require_once 'application/CachedPage.php';
82e36802 158require_once 'application/FeedBuilder.php';
2e28269b 159require_once 'application/FileUtils.php';
451314eb 160require_once 'application/HttpUtils.php';
ca74886f 161require_once 'application/LinkDB.php';
822bffce 162require_once 'application/LinkFilter.php';
1557cefb 163require_once 'application/LinkUtils.php';
cd5327be 164require_once 'application/NetscapeBookmarkUtils.php';
03eb19ac 165require_once 'application/PageBuilder.php';
d1e2f8e5 166require_once 'application/TimeZone.php';
d9d776af 167require_once 'application/Url.php';
ca74886f 168require_once 'application/Utils.php';
dd484b90 169require_once 'application/Config.php';
6fc14d53
A		 170require_once 'application/PluginManager.php';
171require_once 'application/Router.php';
510377d2 172require_once 'application/Updater.php';
ca74886f 173
d1e2f8e5
V		 174// Ensure the PHP version is supported
175try {
c9cf2715 176 ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION);
2e28269b 177} catch(Exception $exc) {
d1e2f8e5 178 header('Content-Type: text/plain; charset=utf-8');
2e28269b 179 echo $exc->getMessage();
d1e2f8e5
V		 180 exit;
181}
182
06b6660a
A		 183// Force cookie path (but do not change lifetime)
184$cookie = session_get_cookie_params();
185$cookiedir = '';
186if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
187 $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
188}
189// Set default cookie expiration and path.
190session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
191// Set session parameters on server side.
192// If the user does not access any page within this time, his/her session is considered expired.
193define('INACTIVITY_TIMEOUT', 3600); // in seconds.
194// Use cookies to store session.
195ini_set('session.use_cookies', 1);
196// Force cookies for session (phpsessionID forbidden in URL).
197ini_set('session.use_only_cookies', 1);
198// Prevent PHP form using sessionID in URL if cookies are disabled.
199ini_set('session.use_trans_sid', false);
200
06b6660a
A		 201session_name('shaarli');
202// Start session if needed (Some server auto-start sessions).
203if (session_id() == '') {
204 session_start();
205}
206
68bc2135
V		 207// Regenerate session ID if invalid or not defined in cookie.
208if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) {
209 session_regenerate_id(true);
210 $_COOKIE['shaarli'] = session_id();
211}
212
45034273 213include "inc/rain.tpl.class.php"; //include Rain TPL
25f5c59d 214raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory
25f5c59d 215raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory
45034273 216
6fc14d53
A		 217$pluginManager = PluginManager::getInstance();
218$pluginManager->load($GLOBALS['config']['ENABLED_PLUGINS']);
219
45034273
SS		 220ob_start(); // Output buffering for the page cache.
221
222
223// In case stupid admin has left magic_quotes enabled in php.ini:
224if (get_magic_quotes_gpc())
225{
226 function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
227 $_POST = array_map('stripslashes_deep', $_POST);
228 $_GET = array_map('stripslashes_deep', $_GET);
229 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
230}
231
232// Prevent caching on client side or proxy: (yes, it's ugly)
233header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
234header("Cache-Control: no-store, no-cache, must-revalidate");
235header("Cache-Control: post-check=0, pre-check=0", false);
236header("Pragma: no-cache");
237
45034273 238// Handling of old config file which do not have the new parameters.
482d67bd 239if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER));
45034273 240if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
8a80e4fe 241if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']='';
45034273 242if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false;
bb8f712d 243if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false;
ebb2880d 244if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?';
858c5c2b 245// I really need to rewrite Shaarli with a proper configuation manager.
45034273 246
50c9a12e 247if (! is_file($GLOBALS['config']['CONFIG_FILE'])) {
2e28269b
V		 248 // Ensure Shaarli has proper access to its resources
249 $errors = ApplicationUtils::checkResourcePermissions($GLOBALS['config']);
250
251 if ($errors != array()) {
252 $message = '<p>Insufficient permissions:</p><ul>';
253
254 foreach ($errors as $error) {
255 $message .= '<li>'.$error.'</li>';
256 }
257 $message .= '</ul>';
258
259 header('Content-Type: text/html; charset=utf-8');
260 echo $message;
261 exit;
262 }
263
264 // Display the installation form if no existing config is found
50c9a12e
V		 265 install();
266}
8a80e4fe 267
5f85fcd8
A		 268$GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : '';
269$GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : '';
270$GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : '';
8a80e4fe 271
ae00595b
CH		 272// a token depending of deployment salt, user password, and the current ip
273define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt']));
8a80e4fe 274
408def1a
A		 275// Sniff browser language and set date format accordingly.
276if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
277 autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
278}
45034273
SS		 279header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling.
280
ff69d87e
FE		 281//==================================================================================================
282// Checking session state (i.e. is the user still logged in)
283//==================================================================================================
284
285function setup_login_state() {
ff69d87e 286 if ($GLOBALS['config']['OPEN_SHAARLI']) {
02ad8fb6 287 return true;
ff69d87e 288 }
02ad8fb6
JP		 289 $userIsLoggedIn = false; // By default, we do not consider the user as logged in;
290 $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
ff69d87e
FE		 291 if (!isset($GLOBALS['login'])) {
292 $userIsLoggedIn = false; // Shaarli is not configured yet.
293 $loginFailure = true;
294 }
295 if (isset($_COOKIE['shaarli_staySignedIn']) &&
296 $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
297 !$loginFailure)
298 {
299 fillSessionInfo();
300 $userIsLoggedIn = true;
301 }
302 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
303 if (empty($_SESSION['uid']) ||
304 ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) ||
305 time() >= $_SESSION['expires_on'])
306 {
307 logout();
308 $userIsLoggedIn = false;
309 $loginFailure = true;
310 }
311 if (!empty($_SESSION['longlastingsession'])) {
312 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
313 }
314 else {
315 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
316 }
317 if (!$loginFailure) {
318 $userIsLoggedIn = true;
319 }
320
321 return $userIsLoggedIn;
322}
ff69d87e 323$userIsLoggedIn = setup_login_state();
45034273 324
45034273
SS		 325// ------------------------------------------------------------------------------------------
326// PubSubHubbub protocol support (if enabled) [UNTESTED]
327// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
328if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
329function pubsubhub()
330{
331 if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
332 {
333 $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
334 $topic_url = array (
482d67bd
V		 335 index_url($_SERVER).'?do=atom',
336 index_url($_SERVER).'?do=rss'
45034273
SS		 337 );
338 $p->publish_update($topic_url);
339 }
340}
341
342// ------------------------------------------------------------------------------------------
343// Session management
45034273
SS		 344
345// Returns the IP address of the client (Used to prevent session cookie hijacking.)
346function allIPs()
347{
348 $ip = $_SERVER["REMOTE_ADDR"];
349 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
350 if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
351 if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
352 return $ip;
353}
354
ae00595b 355function fillSessionInfo() {
ad6c27b7 356 $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid)
ae00595b
CH		 357 $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked.
358 $_SESSION['username']=$GLOBALS['login'];
359 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration.
360}
361
45034273
SS		 362// Check that user/password is correct.
363function check_auth($login,$password)
364{
365 $hash = sha1($password.$login.$GLOBALS['salt']);
366 if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
367 { // Login/password is correct.
ae00595b 368 fillSessionInfo();
1abe6555 369 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login successful');
45034273
SS		 370 return True;
371 }
1abe6555 372 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login);
45034273
SS		 373 return False;
374}
375
376// Returns true if the user is logged in.
377function isLoggedIn()
378{
ff69d87e
FE		 379 global $userIsLoggedIn;
380 return $userIsLoggedIn;
45034273
SS		 381}
382
383// Force logout.
ff69d87e
FE		 384function logout() {
385 if (isset($_SESSION)) {
386 unset($_SESSION['uid']);
387 unset($_SESSION['ip']);
388 unset($_SESSION['username']);
389 unset($_SESSION['privateonly']);
390 }
391 setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
ae00595b 392}
45034273
SS		 393
394
395// ------------------------------------------------------------------------------------------
396// Brute force protection system
397// Several consecutive failed logins will ban the IP address for 30 minutes.
398if (!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?>");
399include $GLOBALS['config']['IPBANS_FILENAME'];
400// Signal a failed login. Will ban the IP if too many failures:
401function ban_loginFailed()
402{
403 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
404 if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
405 $gb['FAILURES'][$ip]++;
406 if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
407 {
408 $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
1abe6555 409 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
45034273
SS		 410 }
411 $GLOBALS['IPBANS'] = $gb;
412 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
413}
414
415// Signals a successful login. Resets failed login counter.
416function ban_loginOk()
417{
418 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
419 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
420 $GLOBALS['IPBANS'] = $gb;
421 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
422}
423
424// Checks if the user CAN login. If 'true', the user can try to login.
425function ban_canLogin()
426{
427 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
428 if (isset($gb['BANS'][$ip]))
429 {
430 // User is banned. Check if the ban has expired:
431 if ($gb['BANS'][$ip]<=time())
432 { // Ban expired, user can try to login again.
1abe6555 433 logm($GLOBALS['config']['LOG_FILE'], $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
45034273
SS		 434 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
435 file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
436 return true; // Ban has expired, user can login.
437 }
438 return false; // User is banned.
439 }
440 return true; // User is not banned.
441}
442
443// ------------------------------------------------------------------------------------------
444// Process login form: Check if login/password is correct.
445if (isset($_POST['login']))
446{
447 if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
448 if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
ad6c27b7 449 { // Login/password is OK.
45034273
SS		 450 ban_loginOk();
451 // If user wants to keep the session cookie even after the browser closes:
452 if (!empty($_POST['longlastingsession']))
453 {
ae00595b 454 setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
45034273
SS		 455 $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
456 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
2d9fab88
SS		 457
458 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 459 session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
ad6c27b7 460 // Note: Never forget the trailing slash on the cookie path!
45034273
SS		 461 session_regenerate_id(true); // Send cookie with new expiration date to browser.
462 }
463 else // Standard session expiration (=when browser closes)
464 {
2d9fab88 465 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 466 session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
45034273
SS		 467 session_regenerate_id(true);
468 }
f4c84ad7 469
45034273 470 // Optional redirect after login:
5fbabbb9
A		 471 if (isset($_GET['post'])) {
472 $uri = '?post='. urlencode($_GET['post']);
473 foreach (array('description', 'source', 'title') as $param) {
474 if (!empty($_GET[$param])) {
475 $uri .= '&'.$param.'='.urlencode($_GET[$param]);
476 }
477 }
478 header('Location: '. $uri);
479 exit;
480 }
481
482 if (isset($_GET['edit_link'])) {
483 header('Location: ?edit_link='. escape($_GET['edit_link']));
484 exit;
485 }
486
487 if (isset($_POST['returnurl'])) {
488 // Prevent loops over login screen.
489 if (strpos($_POST['returnurl'], 'do=login') === false) {
e15f08d7 490 header('Location: '. generateLocation($_POST['returnurl'], $_SERVER['HTTP_HOST']));
5fbabbb9
A		 491 exit;
492 }
45034273
SS		 493 }
494 header('Location: ?'); exit;
495 }
496 else
497 {
498 ban_loginFailed();
705f8355 499 $redir = '';
5fbabbb9
A		 500 if (isset($_GET['post'])) {
501 $redir = '?post=' . urlencode($_GET['post']);
502 foreach (array('description', 'source', 'title') as $param) {
503 if (!empty($_GET[$param])) {
504 $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
505 }
506 }
507 }
fe16b01e 508 echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
45034273
SS		 509 exit;
510 }
511}
512
513// ------------------------------------------------------------------------------------------
514// Misc utility functions:
515
ad6c27b7 516// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
45034273
SS		 517function return_bytes($val)
518{
519 $val = trim($val); $last=strtolower($val[strlen($val)-1]);
520 switch($last)
521 {
522 case 'g': $val *= 1024;
523 case 'm': $val *= 1024;
524 case 'k': $val *= 1024;
525 }
526 return $val;
527}
528
529// Try to determine max file size for uploads (POST).
530// Returns an integer (in bytes)
531function getMaxFileSize()
532{
533 $size1 = return_bytes(ini_get('post_max_size'));
534 $size2 = return_bytes(ini_get('upload_max_filesize'));
535 // Return the smaller of two:
536 $maxsize = min($size1,$size2);
ad6c27b7 537 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
45034273
SS		 538 return $maxsize;
539}
540
45034273
SS		 541// ------------------------------------------------------------------------------------------
542// Token management for XSRF protection
543// Token should be used in any form which acts on data (create,update,delete,import...).
544if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session.
545
546// Returns a token.
547function getToken()
548{
a1f5a6ec 549 $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string.
45034273
SS		 550 $_SESSION['tokens'][$rnd]=1; // Store it on the server side.
551 return $rnd;
552}
553
ad6c27b7 554// Tells if a token is OK. Using this function will destroy the token.
555// true=token is OK.
45034273
SS		 556function tokenOk($token)
557{
558 if (isset($_SESSION['tokens'][$token]))
559 {
560 unset($_SESSION['tokens'][$token]); // Token is used: destroy it.
ad6c27b7 561 return true; // Token is OK.
45034273
SS		 562 }
563 return false; // Wrong token, or already used.
564}
565
45034273
SS		 566// ------------------------------------------------------------------------------------------
567// Daily RSS feed: 1 RSS entry per day giving all the links on that day.
568// Gives the last 7 days (which have links).
569// This RSS feed cannot be filtered.
f3b8f9f0 570function showDailyRSS() {
45034273
SS		 571 // Cache system
572 $query = $_SERVER["QUERY_STRING"];
01e48f26
V		 573 $cache = new CachedPage(
574 $GLOBALS['config']['PAGECACHE'],
482d67bd 575 page_url($_SERVER),
01e48f26
V		 576 startsWith($query,'do=dailyrss') && !isLoggedIn()
577 );
f3b8f9f0
A		 578 $cached = $cache->cachedVersion();
579 if (!empty($cached)) {
580 echo $cached;
581 exit;
582 }
9f15ca9e 583
f3b8f9f0
A		 584 // If cached was not found (or not usable), then read the database and build the response:
585 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 586 $LINKSDB = new LinkDB(
9c8752a2 587 $GLOBALS['config']['DATASTORE'],
02ad8fb6 588 isLoggedIn(),
90e5bd65 589 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
043eae70
A		 590 $GLOBALS['redirector'],
591 $GLOBALS['config']['REDIRECTOR_URLENCODE']
9f15ca9e 592 );
bb8f712d 593
45034273
SS		 594 /* Some Shaarlies may have very few links, so we need to look
595 back in time (rsort()) until we have enough days ($nb_of_days).
596 */
f3b8f9f0
A		 597 $linkdates = array();
598 foreach ($LINKSDB as $linkdate => $value) {
599 $linkdates[] = $linkdate;
600 }
45034273 601 rsort($linkdates);
f3b8f9f0
A		 602 $nb_of_days = 7; // We take 7 days.
603 $today = Date('Ymd');
604 $days = array();
605
606 foreach ($linkdates as $linkdate) {
607 $day = substr($linkdate, 0, 8); // Extract day (without time)
608 if (strcmp($day,$today) < 0) {
609 if (empty($days[$day])) {
610 $days[$day] = array();
611 }
612 $days[$day][] = $linkdate;
613 }
614
615 if (count($days) > $nb_of_days) {
616 break; // Have we collected enough days?
45034273 617 }
45034273 618 }
bb8f712d 619
45034273
SS		 620 // Build the RSS feed.
621 header('Content-Type: application/rss+xml; charset=utf-8');
482d67bd 622 $pageaddr = escape(index_url($_SERVER));
45034273 623 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
f3b8f9f0
A		 624 echo '<channel>';
625 echo '<title>Daily - '. $GLOBALS['title'] . '</title>';
626 echo '<link>'. $pageaddr .'</link>';
627 echo '<description>Daily shared links</description>';
628 echo '<language>en-en</language>';
629 echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
630
631 // For each day.
632 foreach ($days as $day => $linkdates) {
205a4277 633 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
482d67bd 634 $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
bb8f712d 635
45034273 636 // Build the HTML body of this RSS entry.
f3b8f9f0
A		 637 $html = '';
638 $href = '';
639 $links = array();
640
45034273 641 // We pre-format some fields for proper output.
f3b8f9f0 642 foreach ($linkdates as $linkdate) {
45034273 643 $l = $LINKSDB[$linkdate];
90e5bd65 644 $l['formatedDescription'] = format_description($l['description'], $GLOBALS['redirector']);
bb8f712d 645 $l['thumbnail'] = thumbnail($l['url']);
205a4277
V		 646 $l_date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $l['linkdate']);
647 $l['timestamp'] = $l_date->getTimestamp();
f3b8f9f0 648 if (startsWith($l['url'], '?')) {
482d67bd 649 $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute
f3b8f9f0
A		 650 }
651 $links[$linkdate] = $l;
45034273 652 }
f3b8f9f0 653
45034273 654 // Then build the HTML for this day:
bb8f712d 655 $tpl = new RainTPL;
f3b8f9f0 656 $tpl->assign('title', $GLOBALS['title']);
205a4277 657 $tpl->assign('daydate', $dayDate->getTimestamp());
f3b8f9f0
A		 658 $tpl->assign('absurl', $absurl);
659 $tpl->assign('links', $links);
205a4277 660 $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
f3b8f9f0 661 $html = $tpl->draw('dailyrss', $return_string=true);
45034273 662
f3b8f9f0 663 echo $html . PHP_EOL;
bb8f712d 664 }
482d67bd 665 echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
bb8f712d 666
45034273
SS		 667 $cache->cache(ob_get_contents());
668 ob_end_flush();
669 exit;
670}
671
38603b24
A		 672/**
673 * Show the 'Daily' page.
674 *
675 * @param PageBuilder $pageBuilder Template engine wrapper.
043eae70 676 * @param LinkDB $LINKSDB LinkDB instance.
38603b24 677 */
043eae70 678function showDaily($pageBuilder, $LINKSDB)
45034273 679{
45034273
SS		 680 $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
681 if (isset($_GET['day'])) $day=$_GET['day'];
bb8f712d 682
45034273
SS		 683 $days = $LINKSDB->days();
684 $i = array_search($day,$days);
f3db3774 685 if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
bb8f712d
KT		 686 $previousday='';
687 $nextday='';
45034273
SS		 688 if ($i!==false)
689 {
f3db3774 690 if ($i>=1) $previousday=$days[$i-1];
45034273
SS		 691 if ($i<count($days)-1) $nextday=$days[$i+1];
692 }
693
9186ab95 694 try {
528a6f8a 695 $linksToDisplay = $LINKSDB->filterDay($day);
9186ab95
V		 696 } catch (Exception $exc) {
697 error_log($exc);
d1e2f8e5 698 $linksToDisplay = array();
9186ab95
V		 699 }
700
45034273
SS		 701 // We pre-format some fields for proper output.
702 foreach($linksToDisplay as $key=>$link)
703 {
5f85fcd8 704
dd62b9ba
SS		 705 $taglist = explode(' ',$link['tags']);
706 uasort($taglist, 'strcasecmp');
707 $linksToDisplay[$key]['taglist']=$taglist;
90e5bd65 708 $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $GLOBALS['redirector']);
bb8f712d 709 $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);
205a4277
V		 710 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
711 $linksToDisplay[$key]['timestamp'] = $date->getTimestamp();
45034273 712 }
bb8f712d 713
45034273 714 /* We need to spread the articles on 3 columns.
ad6c27b7 715 I did not want to use a JavaScript lib like http://masonry.desandro.com/
bb8f712d 716 so I manually spread entries with a simple method: I roughly evaluate the
45034273
SS		 717 height of a div according to title and description length.
718 */
719 $columns=array(array(),array(),array()); // Entries to display, for each column.
720 $fill=array(0,0,0); // Rough estimate of columns fill.
721 foreach($linksToDisplay as $key=>$link)
722 {
723 // Roughly estimate length of entry (by counting characters)
724 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
725 // Description: 836 characters gives roughly 342 pixel height.
ad6c27b7 726 // This is not perfect, but it's usually OK.
45034273
SS		 727 $length=strlen($link['title'])+(342*strlen($link['description']))/836;
728 if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
729 // Then put in column which is the less filled:
730 $smallest=min($fill); // find smallest value in array.
731 $index=array_search($smallest,$fill); // find index of this smallest value.
732 array_push($columns[$index],$link); // Put entry in this column.
733 $fill[$index]+=$length;
734 }
38603b24 735
205a4277 736 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
6fc14d53
A		 737 $data = array(
738 'linksToDisplay' => $linksToDisplay,
739 'linkcount' => count($LINKSDB),
740 'cols' => $columns,
205a4277 741 'day' => $dayDate->getTimestamp(),
6fc14d53
A		 742 'previousday' => $previousday,
743 'nextday' => $nextday,
744 );
745 $pluginManager = PluginManager::getInstance();
746 $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
747
748 foreach ($data as $key => $value) {
38603b24 749 $pageBuilder->assign($key, $value);
6fc14d53
A		 750 }
751
38603b24 752 $pageBuilder->renderPage('daily');
45034273
SS		 753 exit;
754}
755
6fc14d53
A		 756// Renders the linklist
757function showLinkList($PAGE, $LINKSDB) {
758 buildLinkList($PAGE,$LINKSDB); // Compute list of links to display
759 $PAGE->renderPage('linklist');
760}
761
45034273
SS		 762
763// ------------------------------------------------------------------------------------------
764// Render HTML page (according to URL parameters and user rights)
765function renderPage()
766{
9f15ca9e 767 $LINKSDB = new LinkDB(
9c8752a2 768 $GLOBALS['config']['DATASTORE'],
02ad8fb6 769 isLoggedIn(),
90e5bd65 770 $GLOBALS['config']['HIDE_PUBLIC_LINKS'],
043eae70
A		 771 $GLOBALS['redirector'],
772 $GLOBALS['config']['REDIRECTOR_URLENCODE']
9f15ca9e 773 );
45034273 774
510377d2
A		 775 $updater = new Updater(
776 read_updates_file($GLOBALS['config']['UPDATES_FILE']),
777 $GLOBALS,
778 $LINKSDB,
779 isLoggedIn()
780 );
781 try {
782 $newUpdates = $updater->update();
783 if (! empty($newUpdates)) {
784 write_updates_file(
785 $GLOBALS['config']['UPDATES_FILE'],
786 $updater->getDoneUpdates()
787 );
788 }
789 }
790 catch(Exception $e) {
791 die($e->getMessage());
792 }
793
03eb19ac 794 $PAGE = new PageBuilder();
6fc14d53
A		 795
796 // Determine which page will be rendered.
797 $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
798 $targetPage = Router::findPage($query, $_GET, isLoggedIn());
799
800 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
801 // Then assign generated data to RainTPL.
802 $common_hooks = array(
fea5db7a 803 'includes',
6fc14d53
A		 804 'header',
805 'footer',
6fc14d53
A		 806 );
807 $pluginManager = PluginManager::getInstance();
808 foreach($common_hooks as $name) {
809 $plugin_data = array();
810 $pluginManager->executeHooks('render_' . $name, $plugin_data,
811 array(
812 'target' => $targetPage,
813 'loggedin' => isLoggedIn()
814 )
815 );
816 $PAGE->assign('plugins_' . $name, $plugin_data);
817 }
818
45034273 819 // -------- Display login form.
6fc14d53 820 if ($targetPage == Router::$PAGE_LOGIN)
45034273
SS		 821 {
822 if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
823 $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful.
45034273 824 $PAGE->assign('token',$token);
5f85fcd8 825 $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
45034273
SS		 826 $PAGE->renderPage('loginform');
827 exit;
828 }
829 // -------- User wants to logout.
830 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
831 {
01e48f26 832 invalidateCaches($GLOBALS['config']['PAGECACHE']);
45034273
SS		 833 logout();
834 header('Location: ?');
835 exit;
836 }
837
838 // -------- Picture wall
6fc14d53 839 if ($targetPage == Router::$PAGE_PICWALL)
45034273 840 {
ad6c27b7 841 // Optionally filter the results:
528a6f8a 842 $links = $LINKSDB->filterSearch($_GET);
822bffce 843 $linksToDisplay = array();
45034273
SS		 844
845 // Get only links which have a thumbnail.
846 foreach($links as $link)
847 {
5f85fcd8 848 $permalink='?'.escape(smallhash($link['linkdate']));
45034273
SS		 849 $thumb=lazyThumbnail($link['url'],$permalink);
850 if ($thumb!='') // Only output links which have a thumbnail.
851 {
852 $link['thumbnail']=$thumb; // Thumbnail HTML code.
45034273
SS		 853 $linksToDisplay[]=$link; // Add to array.
854 }
855 }
f3db3774 856
6fc14d53
A		 857 $data = array(
858 'linkcount' => count($LINKSDB),
859 'linksToDisplay' => $linksToDisplay,
860 );
861 $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
862
863 foreach ($data as $key => $value) {
864 $PAGE->assign($key, $value);
865 }
866
45034273
SS		 867 $PAGE->renderPage('picwall');
868 exit;
869 }
870
871 // -------- Tag cloud
6fc14d53 872 if ($targetPage == Router::$PAGE_TAGCLOUD)
45034273
SS		 873 {
874 $tags= $LINKSDB->allTags();
a037ac69 875
45034273
SS		 876 // We sort tags alphabetically, then choose a font size according to count.
877 // First, find max value.
f1e96a06
A		 878 $maxcount = 0;
879 foreach ($tags as $value) {
880 $maxcount = max($maxcount, $value);
881 }
882
883 // Sort tags alphabetically: case insensitive, support locale if avalaible.
884 uksort($tags, function($a, $b) {
885 // Collator is part of PHP intl.
886 if (class_exists('Collator')) {
7eb0a832
A		 887 $c = new Collator(setlocale(LC_COLLATE, 0));
888 if (!intl_is_failure(intl_get_error_code())) {
889 return $c->compare($a, $b);
890 }
f1e96a06 891 }
7eb0a832 892 return strcasecmp($a, $b);
f1e96a06
A		 893 });
894
b0128609
A		 895 $tagList = array();
896 foreach($tags as $key => $value) {
897 // Tag font size scaling:
898 // default 15 and 30 logarithm bases affect scaling,
899 // 22 and 6 are arbitrary font sizes for max and min sizes.
900 $size = log($value, 15) / log($maxcount, 30) * 2.2 + 0.8;
901 $tagList[$key] = array(
902 'count' => $value,
903 'size' => number_format($size, 2, '.', ''),
904 );
45034273 905 }
6fc14d53
A		 906
907 $data = array(
908 'linkcount' => count($LINKSDB),
909 'tags' => $tagList,
910 );
911 $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
912
913 foreach ($data as $key => $value) {
914 $PAGE->assign($key, $value);
915 }
916
45034273 917 $PAGE->renderPage('tagcloud');
bb8f712d 918 exit;
45034273
SS		 919 }
920
38603b24
A		 921 // Daily page.
922 if ($targetPage == Router::$PAGE_DAILY) {
043eae70 923 showDaily($PAGE, $LINKSDB);
38603b24
A		 924 }
925
82e36802
A		 926 // ATOM and RSS feed.
927 if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
928 $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
929 header('Content-Type: application/'. $feedType .'+xml; charset=utf-8');
930
931 // Cache system
932 $query = $_SERVER['QUERY_STRING'];
933 $cache = new CachedPage(
934 $GLOBALS['config']['PAGECACHE'],
935 page_url($_SERVER),
936 startsWith($query,'do='. $targetPage) && !isLoggedIn()
937 );
938 $cached = $cache->cachedVersion();
5f143b72 939 if (!empty($cached)) {
82e36802
A		 940 echo $cached;
941 exit;
942 }
69c474b9 943
82e36802
A		 944 // Generate data.
945 $feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, isLoggedIn());
946 $feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
947 $feedGenerator->setHideDates($GLOBALS['config']['HIDE_TIMESTAMPS'] && !isLoggedIn());
948 $feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']);
949 if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
950 $feedGenerator->setPubsubhubUrl($GLOBALS['config']['PUBSUBHUB_URL']);
951 }
952 $data = $feedGenerator->buildData();
953
954 // Process plugin hook.
955 $pluginManager = PluginManager::getInstance();
956 $pluginManager->executeHooks('render_feed', $data, array(
957 'loggedin' => isLoggedIn(),
958 'target' => $targetPage,
959 ));
960
961 // Render the template.
962 $PAGE->assignAll($data);
963 $PAGE->renderPage('feed.'. $feedType);
964 $cache->cache(ob_get_contents());
965 ob_end_flush();
966 exit;
e67712ba
A		 967 }
968
8f8113b9
A		 969 // Display openseach plugin (XML)
970 if ($targetPage == Router::$PAGE_OPENSEARCH) {
971 header('Content-Type: application/xml; charset=utf-8');
972 $PAGE->assign('serverurl', index_url($_SERVER));
973 $PAGE->renderPage('opensearch');
974 exit;
975 }
976
45034273
SS		 977 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
978 if (isset($_GET['addtag']))
979 {
980 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
981 if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
982 parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
732e683b 983
775803a0
A		 984 // Prevent redirection loop
985 if (isset($params['addtag'])) {
986 unset($params['addtag']);
987 }
988
732e683b
FE		 989 // Check if this tag is already in the search query and ignore it if it is.
990 // Each tag is always separated by a space
6ac95d9c
A		 991 if (isset($params['searchtags'])) {
992 $current_tags = explode(' ', $params['searchtags']);
993 } else {
994 $current_tags = array();
995 }
732e683b
FE		 996 $addtag = true;
997 foreach ($current_tags as $value) {
998 if ($value === $_GET['addtag']) {
999 $addtag = false;
1000 break;
1001 }
1002 }
1003 // Append the tag if necessary
1004 if (empty($params['searchtags'])) {
1005 $params['searchtags'] = trim($_GET['addtag']);
1006 }
1007 else if ($addtag) {
1008 $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
1009 }
1010
45034273
SS		 1011 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1012 header('Location: ?'.http_build_query($params));
1013 exit;
1014 }
1015
1016 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
775803a0 1017 if (isset($_GET['removetag'])) {
45034273 1018 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
775803a0
A		 1019 if (empty($_SERVER['HTTP_REFERER'])) {
1020 header('Location: ?');
1021 exit;
1022 }
1023
1024 // In case browser does not send HTTP_REFERER
1025 parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
1026
1027 // Prevent redirection loop
1028 if (isset($params['removetag'])) {
1029 unset($params['removetag']);
1030 }
1031
1032 if (isset($params['searchtags'])) {
822bffce 1033 $tags = explode(' ', $params['searchtags']);
2c75f8e7
A		 1034 // Remove value from array $tags.
1035 $tags = array_diff($tags, array($_GET['removetag']));
1036 $params['searchtags'] = implode(' ',$tags);
1037
1038 if (empty($params['searchtags'])) {
775803a0 1039 unset($params['searchtags']);
775803a0 1040 }
2c75f8e7 1041
45034273
SS		 1042 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1043 }
1044 header('Location: ?'.http_build_query($params));
1045 exit;
1046 }
1047
1048 // -------- User wants to change the number of links per page (linksperpage=...)
775803a0
A		 1049 if (isset($_GET['linksperpage'])) {
1050 if (is_numeric($_GET['linksperpage'])) {
1051 $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
1052 }
1053
1054 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
45034273
SS		 1055 exit;
1056 }
bb8f712d 1057
45034273 1058 // -------- User wants to see only private links (toggle)
775803a0
A		 1059 if (isset($_GET['privateonly'])) {
1060 if (empty($_SESSION['privateonly'])) {
1061 $_SESSION['privateonly'] = 1; // See only private links
1062 } else {
45034273
SS		 1063 unset($_SESSION['privateonly']); // See all links
1064 }
775803a0
A		 1065
1066 header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
45034273
SS		 1067 exit;
1068 }
1069
1070 // -------- Handle other actions allowed for non-logged in users:
1071 if (!isLoggedIn())
1072 {
ad6c27b7 1073 // User tries to post new link but is not logged in:
45034273
SS		 1074 // Show login screen, then redirect to ?post=...
1075 if (isset($_GET['post']))
1076 {
a1795ddc 1077 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($_GET['source']):'')); // Redirect to login page, then back to post link.
45034273
SS		 1078 exit;
1079 }
aedc912d
FE		 1080
1081 // Same case as above except that user tried to access ?do=addlink without being logged in
1082 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1083 if (isset($_GET['do']) && $_GET['do'] === 'addlink') {
1084 header('Location: ?do=login&post=');
1085 exit;
1086 }
6fc14d53 1087 showLinkList($PAGE, $LINKSDB);
5fbabbb9
A		 1088 if (isset($_GET['edit_link'])) {
1089 header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
1090 exit;
1091 }
1092
ad6c27b7 1093 exit; // Never remove this one! All operations below are reserved for logged in user.
45034273
SS		 1094 }
1095
1096 // -------- All other functions are reserved for the registered user:
1097
1098 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
6fc14d53 1099 if ($targetPage == Router::$PAGE_TOOLS)
45034273 1100 {
6fc14d53
A		 1101 $data = array(
1102 'linkcount' => count($LINKSDB),
1103 'pageabsaddr' => index_url($_SERVER),
1104 );
1105 $pluginManager->executeHooks('render_tools', $data);
1106
1107 foreach ($data as $key => $value) {
1108 $PAGE->assign($key, $value);
1109 }
1110
45034273
SS		 1111 $PAGE->renderPage('tools');
1112 exit;
1113 }
1114
1115 // -------- User wants to change his/her password.
6fc14d53 1116 if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
45034273
SS		 1117 {
1118 if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.');
1119 if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
1120 {
ad6c27b7 1121 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS		 1122
1123 // Make sure old password is correct.
1124 $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
fe16b01e 1125 if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
45034273
SS		 1126 // Save new password
1127 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
1128 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
dd484b90
A		 1129 try {
1130 writeConfig($GLOBALS, isLoggedIn());
1131 }
1132 catch(Exception $e) {
1133 error_log(
1134 'ERROR while writing config file after changing password.' . PHP_EOL .
1135 $e->getMessage()
1136 );
1137
1138 // TODO: do not handle exceptions/errors in JS.
1139 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1140 exit;
1141 }
fe16b01e 1142 echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
45034273
SS		 1143 exit;
1144 }
1145 else // show the change password form.
1146 {
45034273
SS		 1147 $PAGE->assign('linkcount',count($LINKSDB));
1148 $PAGE->assign('token',getToken());
1149 $PAGE->renderPage('changepassword');
1150 exit;
1151 }
1152 }
1153
1154 // -------- User wants to change configuration
6fc14d53 1155 if ($targetPage == Router::$PAGE_CONFIGURE)
45034273
SS		 1156 {
1157 if (!empty($_POST['title']) )
1158 {
12ff86c9
A		 1159 if (!tokenOk($_POST['token'])) {
1160 die('Wrong token.'); // Go away!
1161 }
45034273 1162 $tz = 'UTC';
12ff86c9
A		 1163 if (!empty($_POST['continent']) && !empty($_POST['city'])
1164 && isTimeZoneValid($_POST['continent'], $_POST['city'])
1165 ) {
1166 $tz = $_POST['continent'] . '/' . $_POST['city'];
1167 }
45034273
SS		 1168 $GLOBALS['timezone'] = $tz;
1169 $GLOBALS['title']=$_POST['title'];
ebb2880d 1170 $GLOBALS['titleLink']=$_POST['titleLink'];
45034273
SS		 1171 $GLOBALS['redirector']=$_POST['redirector'];
1172 $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
bb8f712d 1173 $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
ed5b38dd 1174 $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']);
329e0768 1175 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
caee7ff9 1176 $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']);
dd484b90
A		 1177 try {
1178 writeConfig($GLOBALS, isLoggedIn());
1179 }
1180 catch(Exception $e) {
1181 error_log(
1182 'ERROR while writing config file after configuration update.' . PHP_EOL .
1183 $e->getMessage()
1184 );
1185
1186 // TODO: do not handle exceptions/errors in JS.
1187 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1188 exit;
1189 }
fe16b01e 1190 echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
45034273
SS		 1191 exit;
1192 }
1193 else // Show the configuration form.
1194 {
45034273
SS		 1195 $PAGE->assign('linkcount',count($LINKSDB));
1196 $PAGE->assign('token',getToken());
5f85fcd8
A		 1197 $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] );
1198 $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] );
d1e2f8e5
V		 1199 list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']);
1200 $PAGE->assign('timezone_form', $timezone_form);
45034273
SS		 1201 $PAGE->assign('timezone_js',$timezone_js);
1202 $PAGE->renderPage('configure');
1203 exit;
1204 }
1205 }
1206
1207 // -------- User wants to rename a tag or delete it
6fc14d53 1208 if ($targetPage == Router::$PAGE_CHANGETAG)
45034273 1209 {
6a6aa2b9
A		 1210 if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
1211 $PAGE->assign('linkcount', count($LINKSDB));
1212 $PAGE->assign('token', getToken());
bdd1715b 1213 $PAGE->assign('tags', $LINKSDB->allTags());
45034273
SS		 1214 $PAGE->renderPage('changetag');
1215 exit;
1216 }
6a6aa2b9
A		 1217
1218 if (!tokenOk($_POST['token'])) {
1219 die('Wrong token.');
1220 }
45034273
SS		 1221
1222 // Delete a tag:
6a6aa2b9 1223 if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
528a6f8a 1224 $needle = trim($_POST['fromtag']);
822bffce 1225 // True for case-sensitive tag search.
528a6f8a 1226 $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
45034273
SS		 1227 foreach($linksToAlter as $key=>$value)
1228 {
1229 $tags = explode(' ',trim($value['tags']));
1230 unset($tags[array_search($needle,$tags)]); // Remove tag.
1231 $value['tags']=trim(implode(' ',$tags));
1232 $LINKSDB[$key]=$value;
1233 }
2e28269b 1234 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
fe16b01e 1235 echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
45034273
SS		 1236 exit;
1237 }
1238
1239 // Rename a tag:
6a6aa2b9 1240 if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
528a6f8a 1241 $needle = trim($_POST['fromtag']);
822bffce 1242 // True for case-sensitive tag search.
528a6f8a 1243 $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
45034273
SS		 1244 foreach($linksToAlter as $key=>$value)
1245 {
1246 $tags = explode(' ',trim($value['tags']));
ad6c27b7 1247 $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value.
45034273
SS		 1248 $value['tags']=trim(implode(' ',$tags));
1249 $LINKSDB[$key]=$value;
1250 }
01e48f26 1251 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk.
fe16b01e 1252 echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
45034273
SS		 1253 exit;
1254 }
1255 }
1256
ad6c27b7 1257 // -------- User wants to add a link without using the bookmarklet: Show form.
6fc14d53 1258 if ($targetPage == Router::$PAGE_ADDLINK)
45034273 1259 {
45034273
SS		 1260 $PAGE->assign('linkcount',count($LINKSDB));
1261 $PAGE->renderPage('addlink');
1262 exit;
1263 }
1264
1265 // -------- User clicked the "Save" button when editing a link: Save link to database.
1266 if (isset($_POST['save_edit']))
1267 {
5a23950c
A		 1268 // Go away!
1269 if (! tokenOk($_POST['token'])) {
1270 die('Wrong token.');
1271 }
1272 // Remove multiple spaces.
1273 $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags']));
ce354bf1
A		 1274 // Remove first '-' char in tags.
1275 $tags = preg_replace('/(^| )\-/', '$1', $tags);
5a23950c
A		 1276 // Remove duplicates.
1277 $tags = implode(' ', array_unique(explode(' ', $tags)));
1278 $linkdate = $_POST['lf_linkdate'];
feebc6d4 1279 $url = trim($_POST['lf_url']);
5a23950c
A		 1280 if (! startsWith($url, 'http:') && ! startsWith($url, 'https:')
1281 && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:')
1282 && ! startsWith($url, '?') && ! startsWith($url, 'javascript:')
1283 ) {
1284 $url = 'http://' . $url;
1285 }
1286
1287 $link = array(
1288 'title' => trim($_POST['lf_title']),
1289 'url' => $url,
ed853da7 1290 'description' => $_POST['lf_description'],
5a23950c
A		 1291 'private' => (isset($_POST['lf_private']) ? 1 : 0),
1292 'linkdate' => $linkdate,
1293 'tags' => str_replace(',', ' ', $tags)
1294 );
1295 // If title is empty, use the URL as title.
1296 if ($link['title'] == '') {
1297 $link['title'] = $link['url'];
1298 }
6fc14d53
A		 1299
1300 $pluginManager->executeHooks('save_link', $link);
1301
45034273 1302 $LINKSDB[$linkdate] = $link;
5a23950c 1303 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273
SS		 1304 pubsubhub();
1305
1306 // If we are called from the bookmarklet, we must close the popup:
d01c2342
A		 1307 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1308 echo '<script>self.close();</script>';
1309 exit;
1310 }
1311
fd50e14c 1312 $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
775803a0 1313 $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
5a23950c
A		 1314 // Scroll to the link which has been edited.
1315 $location .= '#' . smallHash($_POST['lf_linkdate']);
1316 // After saving the link, redirect to the page the user was on.
1317 header('Location: '. $location);
45034273
SS		 1318 exit;
1319 }
1320
1321 // -------- User clicked the "Cancel" button when editing a link.
1322 if (isset($_POST['cancel_edit']))
1323 {
ad6c27b7 1324 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1325 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
45034273 1326 $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
b342b2a4 1327 $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
775803a0 1328 $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
45034273
SS		 1329 header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
1330 exit;
1331 }
1332
ad6c27b7 1333 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
45034273
SS		 1334 if (isset($_POST['delete_link']))
1335 {
1336 if (!tokenOk($_POST['token'])) die('Wrong token.');
1337 // We do not need to ask for confirmation:
ad6c27b7 1338 // - confirmation is handled by JavaScript
45034273
SS		 1339 // - we are protected from XSRF by the token.
1340 $linkdate=$_POST['lf_linkdate'];
6fc14d53
A		 1341
1342 $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]);
1343
45034273 1344 unset($LINKSDB[$linkdate]);
01e48f26 1345 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // save to disk
45034273
SS		 1346
1347 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1348 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
d528433d 1349 // Pick where we're going to redirect
1350 // =============================================================
1351 // Basically, we can't redirect to where we were previously if it was a permalink
1352 // or an edit_link, because it would 404.
1353 // Cases:
1354 // - / : nothing in $_GET, redirect to self
1355 // - /?page : redirect to self
d33c5d4c 1356 // - /?searchterm : redirect to self (there might be other links)
d528433d 1357 // - /?searchtags : redirect to self
1358 // - /permalink : redirect to / (the link does not exist anymore)
1359 // - /?edit_link : redirect to / (the link does not exist anymore)
1360 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1361 // redirect is not satisfied, and only then redirect to /
1362 $location = "?";
1363 // Self redirection
775803a0
A		 1364 if (count($_GET) == 0
1365 || isset($_GET['page'])
1366 || isset($_GET['searchterm'])
1367 || isset($_GET['searchtags'])
1368 ) {
d528433d 1369 if (isset($_POST['returnurl'])) {
1370 $location = $_POST['returnurl']; // Handle redirects given by the form
775803a0
A		 1371 } else {
1372 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
d528433d 1373 }
1374 }
1375
1376 header('Location: ' . $location); // After deleting the link, redirect to appropriate location
45034273
SS		 1377 exit;
1378 }
1379
1380 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1381 if (isset($_GET['edit_link']))
1382 {
1383 $link = $LINKSDB[$_GET['edit_link']]; // Read database
1384 if (!$link) { header('Location: ?'); exit; } // Link not found in database.
6fc14d53
A		 1385 $data = array(
1386 'linkcount' => count($LINKSDB),
1387 'link' => $link,
1388 'link_is_new' => false,
1389 'token' => getToken(),
1390 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1391 'tags' => $LINKSDB->allTags(),
1392 );
1393 $pluginManager->executeHooks('render_editlink', $data);
1394
1395 foreach ($data as $key => $value) {
1396 $PAGE->assign($key, $value);
1397 }
1398
45034273
SS		 1399 $PAGE->renderPage('editlink');
1400 exit;
1401 }
1402
1403 // -------- User want to post a new link: Display link edit form.
d9d776af 1404 if (isset($_GET['post'])) {
ce7b0b64 1405 $url = cleanup_url($_GET['post']);
45034273
SS		 1406
1407 $link_is_new = false;
9e1724f1 1408 // Check if URL is not already in database (in this case, we will edit the existing link)
ef591e7e 1409 $link = $LINKSDB->getLinkFromUrl($url);
45034273
SS		 1410 if (!$link)
1411 {
9e1724f1 1412 $link_is_new = true;
45034273 1413 $linkdate = strval(date('Ymd_His'));
9e1724f1 1414 // Get title if it was provided in URL (by the bookmarklet).
739dc243 1415 $title = empty($_GET['title']) ? '' : escape($_GET['title']);
9e1724f1 1416 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
739dc243
A		 1417 $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1418 $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1419 $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
26c50346 1420 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
ef591e7e 1421 if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
451314eb 1422 // Short timeout to keep the application responsive
1557cefb 1423 list($headers, $content) = get_http_response($url, 4);
451314eb 1424 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 1425 // Retrieve charset.
1426 $charset = get_charset($headers, $content);
1427 // Extract title.
1428 $title = html_extract_title($content);
1429 // Re-encode title in utf-8 if necessary.
ce7b0b64
A		 1430 if (! empty($title) && strtolower($charset) != 'utf-8') {
1431 $title = mb_convert_encoding($title, 'utf-8', $charset);
9e1724f1
A		 1432 }
1433 }
45034273 1434 }
1557cefb 1435
9e1724f1
A		 1436 if ($url == '') {
1437 $url = '?' . smallHash($linkdate);
1438 $title = 'Note: ';
27646ca5 1439 }
ce7b0b64
A		 1440 $url = escape($url);
1441 $title = escape($title);
1557cefb 1442
9e1724f1
A		 1443 $link = array(
1444 'linkdate' => $linkdate,
1445 'title' => $title,
ef591e7e 1446 'url' => $url,
9e1724f1
A		 1447 'description' => $description,
1448 'tags' => $tags,
1449 'private' => $private
1450 );
45034273
SS		 1451 }
1452
6fc14d53
A		 1453 $data = array(
1454 'linkcount' => count($LINKSDB),
1455 'link' => $link,
1456 'link_is_new' => $link_is_new,
1457 'token' => getToken(), // XSRF protection.
1458 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1459 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1460 'tags' => $LINKSDB->allTags(),
1461 );
1462 $pluginManager->executeHooks('render_editlink', $data);
1463
1464 foreach ($data as $key => $value) {
1465 $PAGE->assign($key, $value);
1466 }
1467
45034273
SS		 1468 $PAGE->renderPage('editlink');
1469 exit;
1470 }
1471
cd5327be 1472 if ($targetPage == Router::$PAGE_EXPORT) {
bb4a23aa
V		 1473 // Export links as a Netscape Bookmarks file
1474
cd5327be 1475 if (empty($_GET['selection'])) {
45034273
SS		 1476 $PAGE->assign('linkcount',count($LINKSDB));
1477 $PAGE->renderPage('export');
1478 exit;
1479 }
45034273 1480
cd5327be
V		 1481 // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1482 $selection = $_GET['selection'];
bb4a23aa
V		 1483 if (isset($_GET['prepend_note_url'])) {
1484 $prependNoteUrl = $_GET['prepend_note_url'];
1485 } else {
1486 $prependNoteUrl = false;
1487 }
1488
cd5327be
V		 1489 try {
1490 $PAGE->assign(
1491 'links',
bb4a23aa
V		 1492 NetscapeBookmarkUtils::filterAndFormat(
1493 $LINKSDB,
1494 $selection,
1495 $prependNoteUrl,
1496 index_url($_SERVER)
1497 )
cd5327be
V		 1498 );
1499 } catch (Exception $exc) {
1500 header('Content-Type: text/plain; charset=utf-8');
1501 echo $exc->getMessage();
1502 exit;
45034273 1503 }
cd5327be
V		 1504 $now = new DateTime();
1505 header('Content-Type: text/html; charset=utf-8');
1506 header(
1507 'Content-disposition: attachment; filename=bookmarks_'
1508 .$selection.'_'.$now->format(LinkDB::LINK_DATE_FORMAT).'.html'
1509 );
1510 $PAGE->assign('date', $now->format(DateTime::RFC822));
1511 $PAGE->assign('eol', PHP_EOL);
1512 $PAGE->assign('selection', $selection);
1513 $PAGE->renderPage('export.bookmarks');
1514 exit;
45034273
SS		 1515 }
1516
1517 // -------- User is uploading a file for import
1518 if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload'))
1519 {
1520 // If file is too big, some form field may be missing.
1521 if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
1522 {
1523 $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
5f85fcd8 1524 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>';
45034273
SS		 1525 exit;
1526 }
1527 if (!tokenOk($_POST['token'])) die('Wrong token.');
043eae70 1528 importFile($LINKSDB);
45034273
SS		 1529 exit;
1530 }
1531
1532 // -------- Show upload/import dialog:
6fc14d53 1533 if ($targetPage == Router::$PAGE_IMPORT)
45034273 1534 {
45034273
SS		 1535 $PAGE->assign('linkcount',count($LINKSDB));
1536 $PAGE->assign('token',getToken());
1537 $PAGE->assign('maxfilesize',getMaxFileSize());
1538 $PAGE->renderPage('import');
1539 exit;
1540 }
1541
dea0ba28
A		 1542 // Plugin administration page
1543 if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1544 $pluginMeta = $pluginManager->getPluginsMeta();
1545
1546 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1547 $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
1548 // Load parameters.
1549 $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $GLOBALS['plugins']);
1550 uasort(
1551 $enabledPlugins,
1552 function($a, $b) { return $a['order'] - $b['order']; }
1553 );
1554 $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
1555
1556 $PAGE->assign('enabledPlugins', $enabledPlugins);
1557 $PAGE->assign('disabledPlugins', $disabledPlugins);
1558 $PAGE->renderPage('pluginsadmin');
1559 exit;
1560 }
1561
1562 // Plugin administration form action
1563 if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1564 try {
1565 if (isset($_POST['parameters_form'])) {
1566 unset($_POST['parameters_form']);
1567 foreach ($_POST as $param => $value) {
1568 $GLOBALS['plugins'][$param] = escape($value);
1569 }
1570 }
1571 else {
1572 $GLOBALS['config']['ENABLED_PLUGINS'] = save_plugin_config($_POST);
1573 }
1574 writeConfig($GLOBALS, isLoggedIn());
1575 }
1576 catch (Exception $e) {
1577 error_log(
1578 'ERROR while saving plugin configuration:.' . PHP_EOL .
1579 $e->getMessage()
1580 );
1581
1582 // TODO: do not handle exceptions/errors in JS.
59edea42 1583 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>';
dea0ba28
A		 1584 exit;
1585 }
1586 header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
1587 exit;
1588 }
1589
45034273 1590 // -------- Otherwise, simply display search form and links:
6fc14d53 1591 showLinkList($PAGE, $LINKSDB);
45034273
SS		 1592 exit;
1593}
1594
1595// -----------------------------------------------------------------------------------------------
1596// Process the import file form.
043eae70 1597function importFile($LINKSDB)
45034273 1598{
02ad8fb6 1599 if (!isLoggedIn()) { die('Not allowed.'); }
043eae70 1600
45034273
SS		 1601 $filename=$_FILES['filetoupload']['name'];
1602 $filesize=$_FILES['filetoupload']['size'];
1603 $data=file_get_contents($_FILES['filetoupload']['tmp_name']);
ad6c27b7 1604 $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private?
1605 $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones?
45034273
SS		 1606 $import_count=0;
1607
1608 // Sniff file type:
1609 $type='unknown';
1610 if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
1611
1612 // Then import the bookmarks.
1613 if ($type=='netscape')
1614 {
1615 // This is a standard Netscape-style bookmark file.
ad6c27b7 1616 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
45034273
SS		 1617 foreach(explode('<DT>',$data) as $html) // explode is very fast
1618 {
1619 $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
1620 $d = explode('<DD>',$html);
1621 if (startswith($d[0],'<A '))
1622 {
1623 $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
1624 preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title
1625 $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8');
1626 preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes
1627 $raw_add_date=0;
1628 foreach($matches as $m)
1629 {
1630 $attr=$m[1]; $value=$m[2];
1631 if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8');
fc93ae1d
AA		 1632 elseif ($attr=='ADD_DATE')
1633 {
1634 $raw_add_date=intval($value);
1635 if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1636 }
45034273
SS		 1637 elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1);
1638 elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8');
1639 }
1640 if ($link['url']!='')
1641 {
1642 if ($private==1) $link['private']=1;
1643 $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database.
1644 if ($dblink==false)
1645 { // Link not in database, let's import it...
1646 if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE
1647
1648 // Make sure date/time is not already used by another link.
1649 // (Some bookmark files have several different links with the same ADD_DATE)
ad6c27b7 1650 // We increment date by 1 second until we find a date which is not used in DB.
45034273
SS		 1651 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1652 while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly.
1653 $link['linkdate']=date('Ymd_His',$raw_add_date);
1654 $LINKSDB[$link['linkdate']] = $link;
1655 $import_count++;
1656 }
ad6c27b7 1657 else // Link already present in database.
45034273
SS		 1658 {
1659 if ($overwrite)
1660 { // If overwrite is required, we import link data, except date/time.
1661 $link['linkdate']=$dblink['linkdate'];
1662 $LINKSDB[$link['linkdate']] = $link;
1663 $import_count++;
1664 }
1665 }
1666
1667 }
1668 }
1669 }
01e48f26 1670 $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
45034273 1671
fe16b01e 1672 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
45034273
SS		 1673 }
1674 else
1675 {
fe16b01e 1676 echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
45034273
SS		 1677 }
1678}
1679
528a6f8a
A		 1680/**
1681 * Template for the list of links (<div id="linklist">)
1682 * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1683 *
1684 * @param pageBuilder $PAGE pageBuilder instance.
1685 * @param LinkDB $LINKSDB LinkDB instance.
1686 */
45034273
SS		 1687function buildLinkList($PAGE,$LINKSDB)
1688{
528a6f8a 1689 // Used in templates
c51fae92 1690 $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
528a6f8a 1691 $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
822bffce 1692
528a6f8a
A		 1693 // Smallhash filter
1694 if (! empty($_SERVER['QUERY_STRING'])
1695 && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
1696 try {
1697 $linksToDisplay = $LINKSDB->filterHash($_SERVER['QUERY_STRING']);
1698 } catch (LinkNotFoundException $e) {
1699 $PAGE->render404($e->getMessage());
45034273
SS		 1700 exit;
1701 }
528a6f8a
A		 1702 } else {
1703 // Filter links according search parameters.
1704 $privateonly = !empty($_SESSION['privateonly']);
1705 $linksToDisplay = $LINKSDB->filterSearch($_GET, false, $privateonly);
45034273
SS		 1706 }
1707
1708 // ---- Handle paging.
822bffce
A		 1709 $keys = array();
1710 foreach ($linksToDisplay as $key => $value) {
1711 $keys[] = $key;
1712 }
45034273
SS		 1713
1714 // If there is only a single link, we change on-the-fly the title of the page.
822bffce
A		 1715 if (count($linksToDisplay) == 1) {
1716 $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
1717 }
45034273
SS		 1718
1719 // Select articles according to paging.
822bffce
A		 1720 $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1721 $pagecount = $pagecount == 0 ? 1 : $pagecount;
1722 $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1723 $page = $page < 1 ? 1 : $page;
1724 $page = $page > $pagecount ? $pagecount : $page;
1725 // Start index.
1726 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1727 $end = $i + $_SESSION['LINKS_PER_PAGE'];
1728 $linkDisp = array();
45034273
SS		 1729 while ($i<$end && $i<count($keys))
1730 {
1731 $link = $linksToDisplay[$keys[$i]];
90e5bd65 1732 $link['description'] = format_description($link['description'], $GLOBALS['redirector']);
822bffce
A		 1733 $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
1734 $link['class'] = $link['private'] == 0 ? $classLi : 'private';
205a4277
V		 1735 $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
1736 $link['timestamp'] = $date->getTimestamp();
822bffce 1737 $taglist = explode(' ', $link['tags']);
a5752e77 1738 uasort($taglist, 'strcasecmp');
822bffce 1739 $link['taglist'] = $taglist;
6fc14d53 1740 $link['shorturl'] = smallHash($link['linkdate']);
822bffce
A		 1741 // Check for both signs of a note: starting with ? and 7 chars long.
1742 if ($link['url'][0] === '?' &&
1743 strlen($link['url']) === 7) {
1744 $link['url'] = index_url($_SERVER) . $link['url'];
b47f515a 1745 }
d33c5d4c 1746
45034273
SS		 1747 $linkDisp[$keys[$i]] = $link;
1748 $i++;
1749 }
bb8f712d 1750
45034273 1751 // Compute paging navigation
c51fae92
A		 1752 $searchtagsUrl = empty($searchtags) ? '' : '&searchtags=' . urlencode($searchtags);
1753 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
822bffce
A		 1754 $previous_page_url = '';
1755 if ($i != count($keys)) {
c51fae92 1756 $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
822bffce
A		 1757 }
1758 $next_page_url='';
1759 if ($page>1) {
c51fae92 1760 $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
822bffce 1761 }
45034273 1762
c51fae92 1763 $token = isLoggedIn() ? getToken() : '';
bb8f712d 1764
45034273 1765 // Fill all template fields.
6fc14d53
A		 1766 $data = array(
1767 'linkcount' => count($LINKSDB),
1768 'previous_page_url' => $previous_page_url,
1769 'next_page_url' => $next_page_url,
1770 'page_current' => $page,
1771 'page_max' => $pagecount,
1772 'result_count' => count($linksToDisplay),
c51fae92
A		 1773 'search_term' => $searchterm,
1774 'search_tags' => $searchtags,
6fc14d53
A		 1775 'redirector' => empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'], // Optional redirector URL.
1776 'token' => $token,
1777 'links' => $linkDisp,
1778 'tags' => $LINKSDB->allTags(),
1779 );
18cca483
A		 1780 // FIXME! temporary fix - see #399.
1781 if (!empty($GLOBALS['pagetitle']) && count($linkDisp) == 1) {
1782 $data['pagetitle'] = $GLOBALS['pagetitle'];
1783 }
6fc14d53
A		 1784
1785 $pluginManager = PluginManager::getInstance();
1786 $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
1787
1788 foreach ($data as $key => $value) {
1789 $PAGE->assign($key, $value);
1790 }
1791
45034273
SS		 1792 return;
1793}
1794
1795// Compute the thumbnail for a link.
bb8f712d 1796//
ad6c27b7 1797// With a link to the original URL.
45034273 1798// Understands various services (youtube.com...)
ad6c27b7 1799// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 1800// $href = if provided, this URL will be followed instead of $url
1801// Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1802// Some of them may be missing.
1803// Return an empty array if no thumbnail available.
1804function computeThumbnail($url,$href=false)
1805{
1806 if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
1807 if ($href==false) $href=$url;
1808
1809 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
ad6c27b7 1810 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
45034273
SS		 1811 // ^^^^^^^^^^^ ^^^^^^^^^^^
1812 $domain = parse_url($url,PHP_URL_HOST);
1813 if ($domain=='youtube.com' || $domain=='www.youtube.com')
1814 {
1815 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1a663a0f 1816 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
45034273
SS		 1817 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
1818 }
1819 if ($domain=='youtu.be') // Youtube short links
1820 {
1821 $path = parse_url($url,PHP_URL_PATH);
1a663a0f 1822 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
bb8f712d 1823 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
45034273
SS		 1824 }
1825 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
1826 {
1827 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
1828 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
bb8f712d
KT		 1829 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
1830 }
1831
45034273
SS		 1832 if ($domain=='imgur.com')
1833 {
1834 $path = parse_url($url,PHP_URL_PATH);
1835 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1a663a0f 1836 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
45034273 1837 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1a663a0f 1838 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
45034273
SS		 1839 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1840
1a663a0f 1841 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
45034273
SS		 1842 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1843 }
1844 if ($domain=='i.imgur.com')
1845 {
1846 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1a663a0f 1847 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
45034273
SS		 1848 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1849 }
1850 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
1851 {
1852 if (strpos($url,'dailymotion.com/video/')!==false)
1853 {
1854 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
1855 return array('src'=>$thumburl,
1856 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
1857 }
1858 }
1859 if (endsWith($domain,'.imageshack.us'))
1860 {
1861 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1862 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1863 {
1864 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
1865 return array('src'=>$thumburl,
1866 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
1867 }
1868 }
1869
1870 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1871 // So we deport the thumbnail generation in order not to slow down page generation
1872 // (and we also cache the thumbnail)
1873
1874 if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1875
1876 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
1877 || $domain=='vimeo.com'
1878 || $domain=='ted.com' || endsWith($domain,'.ted.com')
1879 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
1880 )
1881 {
1882 if ($domain=='vimeo.com')
ad6c27b7 1883 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
45034273
SS		 1884 $path = parse_url($url,PHP_URL_PATH);
1885 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
1886 }
1887 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
ad6c27b7 1888 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
45034273
SS		 1889 $path = parse_url($url,PHP_URL_PATH);
1890 if (!preg_match('!/\d+.+?!',$path)) return array();
1891 }
1892 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
ad6c27b7 1893 { // Make sure this TED URL points to a video (/talks/...)
45034273
SS		 1894 $path = parse_url($url,PHP_URL_PATH);
1895 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
1896 }
1897 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 1898 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
45034273
SS		 1899 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
1900 }
1901
1902 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1903 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1904 // But using the extension will do.
1905 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1906 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1907 {
1908 $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 1909 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
bb8f712d 1910 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
45034273
SS		 1911 }
1912 return array(); // No thumbnail.
1913
1914}
1915
1916
1917// Returns the HTML code to display a thumbnail for a link
1918// with a link to the original URL.
1919// Understands various services (youtube.com...)
ad6c27b7 1920// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 1921// $href = if provided, this URL will be followed instead of $url
1922// Returns '' if no thumbnail available.
1923function thumbnail($url,$href=false)
1924{
1925 $t = computeThumbnail($url,$href);
1926 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
bb8f712d 1927
5f85fcd8
A		 1928 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
1929 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1930 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1931 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1932 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273
SS		 1933 $html.='></a>';
1934 return $html;
1935}
1936
45034273
SS		 1937// Returns the HTML code to display a thumbnail for a link
1938// for the picture wall (using lazy image loading)
1939// Understands various services (youtube.com...)
ad6c27b7 1940// Input: $url = URL for which the thumbnail must be found.
45034273
SS		 1941// $href = if provided, this URL will be followed instead of $url
1942// Returns '' if no thumbnail available.
1943function lazyThumbnail($url,$href=false)
1944{
bb8f712d 1945 $t = computeThumbnail($url,$href);
45034273
SS		 1946 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
1947
5f85fcd8 1948 $html='<a href="'.escape($t['href']).'">';
bb8f712d 1949
34047d23 1950 // Lazy image
5f85fcd8 1951 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
858c5c2b 1952
5f85fcd8
A		 1953 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1954 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1955 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1956 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 1957 $html.='>';
bb8f712d 1958
ad6c27b7 1959 // No-JavaScript fallback.
5f85fcd8
A		 1960 $html.='<noscript><img src="'.escape($t['src']).'"';
1961 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1962 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1963 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1964 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 1965 $html.='></noscript></a>';
bb8f712d 1966
45034273
SS		 1967 return $html;
1968}
1969
1970
1971// -----------------------------------------------------------------------------------------------
1972// Installation
1973// This function should NEVER be called if the file data/config.php exists.
1974function install()
1975{
1976 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
f6a6ca0a 1977 if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
45034273 1978
f37664a2
SS		 1979
1980 // This part makes sure sessions works correctly.
1981 // (Because on some hosts, session.save_path may not be set correctly,
1982 // or we may not have write access to it.)
1983 if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
1984 { // Step 2: Check if data in session is correct.
1985 echo '<pre>Sessions do not seem to work correctly on your server.<br>';
1986 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
01ec1791 1987 echo 'It currently points to '.session_save_path().'<br>';
1988 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
1989 echo '<br><a href="?">Click to try again.</a></pre>';
f37664a2
SS		 1990 die;
1991 }
1992 if (!isset($_SESSION['session_tested']))
1993 { // Step 1 : Try to store data in session and reload page.
1994 $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
482d67bd 1995 header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
f37664a2
SS		 1996 }
1997 if (isset($_GET['test_session']))
ad6c27b7 1998 { // Step 3: Sessions are OK. Remove test parameter from URL.
482d67bd 1999 header('Location: '.index_url($_SERVER));
f37664a2
SS		 2000 }
2001
2002
45034273
SS		 2003 if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
2004 {
2005 $tz = 'UTC';
12ff86c9
A		 2006 if (!empty($_POST['continent']) && !empty($_POST['city'])
2007 && isTimeZoneValid($_POST['continent'], $_POST['city'])
2008 ) {
2009 $tz = $_POST['continent'].'/'.$_POST['city'];
d1e2f8e5 2010 }
45034273
SS		 2011 $GLOBALS['timezone'] = $tz;
2012 // Everything is ok, let's create config file.
2013 $GLOBALS['login'] = $_POST['setlogin'];
2014 $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
2015 $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
482d67bd 2016 $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] );
329e0768 2017 $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
dd484b90
A		 2018 try {
2019 writeConfig($GLOBALS, isLoggedIn());
2020 }
2021 catch(Exception $e) {
2022 error_log(
2023 'ERROR while writing config file after installation.' . PHP_EOL .
2024 $e->getMessage()
2025 );
2026
2027 // TODO: do not handle exceptions/errors in JS.
2028 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
2029 exit;
2030 }
fe16b01e 2031 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
45034273
SS		 2032 exit;
2033 }
2034
2035 // Display config form:
d1e2f8e5
V		 2036 list($timezone_form, $timezone_js) = generateTimeZoneForm();
2037 $timezone_html = '';
2038 if ($timezone_form != '') {
2039 $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
2040 }
bb8f712d 2041
45034273
SS		 2042 $PAGE = new pageBuilder;
2043 $PAGE->assign('timezone_html',$timezone_html);
2044 $PAGE->assign('timezone_js',$timezone_js);
2045 $PAGE->renderPage('install');
2046 exit;
2047}
2048
ad6c27b7 2049/* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
45034273 2050 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
ad6c27b7 2051 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2052 This function is called by passing the URL:
45034273 2053 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
ad6c27b7 2054 [URL] is the URL of the link (e.g. a flickr page)
45034273
SS		 2055 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2056 The function below will fetch the image from the webservice and store it in the cache.
2057*/
2058function genThumbnail()
2059{
2060 // Make sure the parameters in the URL were generated by us.
2061 $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']);
ad6c27b7 2062 if ($sign!=$_GET['hmac']) die('Naughty boy!');
45034273
SS		 2063
2064 // Let's see if we don't already have the image for this URL in the cache.
2065 $thumbname=hash('sha1',$_GET['url']).'.jpg';
2066 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname))
2067 { // We have the thumbnail, just serve it:
2068 header('Content-Type: image/jpeg');
2069 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname);
2070 return;
2071 }
2072 // We may also serve a blank image (if service did not respond)
2073 $blankname=hash('sha1',$_GET['url']).'.gif';
2074 if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname))
2075 {
2076 header('Content-Type: image/gif');
2077 echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname);
2078 return;
2079 }
2080
2081 // Otherwise, generate the thumbnail.
2082 $url = $_GET['url'];
2083 $domain = parse_url($url,PHP_URL_HOST);
2084
2085 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
2086 {
ad6c27b7 2087 // Crude replacement to handle new flickr domain policy (They prefer www. now)
45034273
SS		 2088 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
2089
2090 // Is this a link to an image, or to a flickr page ?
2091 $imageurl='';
2092 if (endswith(parse_url($url,PHP_URL_PATH),'.jpg'))
ad6c27b7 2093 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
45034273
SS		 2094 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
2095 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
2096 }
ad6c27b7 2097 else // This is a flickr page (html)
45034273 2098 {
451314eb 2099 // Get the flickr html page.
1557cefb 2100 list($headers, $content) = get_http_response($url, 20);
451314eb 2101 if (strpos($headers[0], '200 OK') !== false)
45034273 2102 {
ad6c27b7 2103 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1557cefb 2104 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
45034273
SS		 2105 if (!empty($matches[1])) $imageurl=$matches[1];
2106
2107 // In albums (and some other pages), the link rel="image_src" is not provided,
2108 // but flickr provides:
2109 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2110 if ($imageurl=='')
2111 {
1557cefb 2112 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
45034273
SS		 2113 if (!empty($matches[1])) $imageurl=$matches[1];
2114 }
2115 }
2116 }
2117
2118 if ($imageurl!='')
2119 { // Let's download the image.
451314eb 2120 // Image is 240x120, so 10 seconds to download should be enough.
1557cefb 2121 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2122 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2123 // Save image to cache.
2124 file_put_contents($GLOBALS['config']['CACHEDIR'].'/' . $thumbname, $content);
45034273 2125 header('Content-Type: image/jpeg');
1557cefb 2126 echo $content;
45034273
SS		 2127 return;
2128 }
2129 }
2130 }
2131
2132 elseif ($domain=='vimeo.com' )
2133 {
2134 // This is more complex: we have to perform a HTTP request, then parse the result.
ad6c27b7 2135 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
45034273 2136 $vid = substr(parse_url($url,PHP_URL_PATH),1);
1557cefb 2137 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
451314eb 2138 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2139 $t = unserialize($content);
45034273
SS		 2140 $imageurl = $t[0]['thumbnail_medium'];
2141 // Then we download the image and serve it to our client.
1557cefb 2142 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2143 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A		 2144 // Save image to cache.
2145 file_put_contents($GLOBALS['config']['CACHEDIR'] . '/' . $thumbname, $content);
45034273 2146 header('Content-Type: image/jpeg');
1557cefb 2147 echo $content;
45034273
SS		 2148 return;
2149 }
2150 }
2151 }
2152
2153 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2154 {
2155 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2156 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2157 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
1557cefb 2158 list($headers, $content) = get_http_response($url, 5);
451314eb 2159 if (strpos($headers[0], '200 OK') !== false) {
45034273 2160 // Extract the link to the thumbnail
1557cefb 2161 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
45034273
SS		 2162 if (!empty($matches[1]))
2163 { // Let's download the image.
2164 $imageurl=$matches[1];
451314eb 2165 // No control on image size, so wait long enough
1557cefb 2166 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2167 if (strpos($headers[0], '200 OK') !== false) {
45034273 2168 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb 2169 file_put_contents($filepath, $content); // Save image to cache.
45034273
SS		 2170 if (resizeImage($filepath))
2171 {
2172 header('Content-Type: image/jpeg');
2173 echo file_get_contents($filepath);
2174 return;
2175 }
2176 }
2177 }
2178 }
2179 }
bb8f712d 2180
45034273
SS		 2181 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2182 {
2183 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2184 // http://xkcd.com/327/
2185 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
1557cefb 2186 list($headers, $content) = get_http_response($url, 5);
451314eb 2187 if (strpos($headers[0], '200 OK') !== false) {
45034273 2188 // Extract the link to the thumbnail
1557cefb 2189 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
45034273
SS		 2190 if (!empty($matches[1]))
2191 { // Let's download the image.
2192 $imageurl=$matches[1];
451314eb 2193 // No control on image size, so wait long enough
1557cefb 2194 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2195 if (strpos($headers[0], '200 OK') !== false) {
45034273 2196 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2197 // Save image to cache.
2198 file_put_contents($filepath, $content);
45034273
SS		 2199 if (resizeImage($filepath))
2200 {
2201 header('Content-Type: image/jpeg');
2202 echo file_get_contents($filepath);
2203 return;
2204 }
2205 }
2206 }
2207 }
bb8f712d 2208 }
45034273
SS		 2209
2210 else
2211 {
2212 // For all other domains, we try to download the image and make a thumbnail.
451314eb 2213 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
1557cefb 2214 list($headers, $content) = get_http_response($url, 30);
451314eb 2215 if (strpos($headers[0], '200 OK') !== false) {
45034273 2216 $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
1557cefb
A		 2217 // Save image to cache.
2218 file_put_contents($filepath, $content);
45034273
SS		 2219 if (resizeImage($filepath))
2220 {
2221 header('Content-Type: image/jpeg');
2222 echo file_get_contents($filepath);
2223 return;
2224 }
2225 }
2226 }
2227
2228
2229 // Otherwise, return an empty image (8x8 transparent gif)
2230 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
2231 file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
2232 header('Content-Type: image/gif');
2233 echo $blankgif;
2234}
2235
2236// Make a thumbnail of the image (to width: 120 pixels)
2237// Returns true if success, false otherwise.
2238function resizeImage($filepath)
2239{
2240 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2241
2242 // Trick: some stupid people rename GIF as JPEG... or else.
2243 // So we really try to open each image type whatever the extension is.
2244 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2245 $im=false;
2246 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2247 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2248 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2249 if (!$im) return false; // Unable to open image (corrupted or not an image)
2250 $w = imagesx($im);
2251 $h = imagesy($im);
2252 $ystart = 0; $yheight=$h;
2253 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2254 $nw = 120; // Desired width
2255 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2256 // Resize image:
2257 $im2 = imagecreatetruecolor($nw,$nh);
2258 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2259 imageinterlace($im2,true); // For progressive JPEG.
2260 $tempname=$filepath.'_TEMP.jpg';
2261 imagejpeg($im2, $tempname, 90);
2262 imagedestroy($im);
2263 imagedestroy($im2);
9e820906 2264 unlink($filepath);
45034273
SS		 2265 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2266 return true;
2267}
2268
45034273 2269if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
45034273 2270if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
45034273
SS		 2271if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
2272renderPage();
03545ef6 2273?>
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