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45034273 1<?php
49e2b35b 2/**
03cadbe2 3 * Shaarli v0.8.3 - Shaare your links...
49e2b35b 4 *
2d97aa77 5 * The personal, minimalist, super-fast, database free, bookmarking service.
49e2b35b
V
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 *
3947bbb0 16 * Requires: PHP 5.5.x
49e2b35b 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 * PHP configuration
27 */
ae7f6b9d 28define('shaarli_version', '0.8.2');
28bb2b74 29
ae00595b 30// http://server.com/x/shaarli --> /shaarli/
684e662a 31define('WEB_PATH', substr($_SERVER['REQUEST_URI'], 0, 1+strrpos($_SERVER['REQUEST_URI'], '/', 0)));
45034273 32
28bb2b74
V
33// High execution time in case of problematic imports/exports.
34ini_set('max_input_time','60');
35
36// Try to set max upload file size and read
37ini_set('memory_limit', '128M');
45034273
SS
38ini_set('post_max_size', '16M');
39ini_set('upload_max_filesize', '16M');
45034273 40
28bb2b74
V
41// See all error except warnings
42error_reporting(E_ALL^E_WARNING);
43// See all errors (for debugging only)
44//error_reporting(-1);
45
50c9a12e 46
a973afea 47// 3rd-party libraries
52831753
V
48if (! file_exists(__DIR__ . '/vendor/autoload.php')) {
49 header('Content-Type: text/plain; charset=utf-8');
50 echo "Error: missing Composer configuration\n\n"
51 ."If you installed Shaarli through Git or using the development branch,\n"
52 ."please refer to the installation documentation to install PHP"
53 ." dependencies using Composer:\n"
54 ."- https://github.com/shaarli/Shaarli/wiki/Server-requirements\n"
55 ."- https://github.com/shaarli/Shaarli/wiki/Download-and-Installation";
56 exit;
57}
a973afea
V
58require_once 'inc/rain.tpl.class.php';
59require_once __DIR__ . '/vendor/autoload.php';
60
ca74886f 61// Shaarli library
2e28269b 62require_once 'application/ApplicationUtils.php';
01e48f26
V
63require_once 'application/Cache.php';
64require_once 'application/CachedPage.php';
e6cd773f 65require_once 'application/config/ConfigPlugin.php';
82e36802 66require_once 'application/FeedBuilder.php';
2e28269b 67require_once 'application/FileUtils.php';
451314eb 68require_once 'application/HttpUtils.php';
edf3ff5a 69require_once 'application/Languages.php';
ca74886f 70require_once 'application/LinkDB.php';
822bffce 71require_once 'application/LinkFilter.php';
1557cefb 72require_once 'application/LinkUtils.php';
cd5327be 73require_once 'application/NetscapeBookmarkUtils.php';
03eb19ac 74require_once 'application/PageBuilder.php';
d1e2f8e5 75require_once 'application/TimeZone.php';
d9d776af 76require_once 'application/Url.php';
ca74886f 77require_once 'application/Utils.php';
6fc14d53
A
78require_once 'application/PluginManager.php';
79require_once 'application/Router.php';
510377d2 80require_once 'application/Updater.php';
a0df0651 81use \Shaarli\ThemeUtils;
3c66e564 82use \Shaarli\Config\ConfigManager;
ca74886f 83
d1e2f8e5
V
84// Ensure the PHP version is supported
85try {
3947bbb0 86 ApplicationUtils::checkPHPVersion('5.5', PHP_VERSION);
2e28269b 87} catch(Exception $exc) {
d1e2f8e5 88 header('Content-Type: text/plain; charset=utf-8');
2e28269b 89 echo $exc->getMessage();
d1e2f8e5
V
90 exit;
91}
92
06b6660a
A
93// Force cookie path (but do not change lifetime)
94$cookie = session_get_cookie_params();
95$cookiedir = '';
96if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
97 $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
98}
99// Set default cookie expiration and path.
100session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
101// Set session parameters on server side.
102// If the user does not access any page within this time, his/her session is considered expired.
103define('INACTIVITY_TIMEOUT', 3600); // in seconds.
104// Use cookies to store session.
105ini_set('session.use_cookies', 1);
106// Force cookies for session (phpsessionID forbidden in URL).
107ini_set('session.use_only_cookies', 1);
108// Prevent PHP form using sessionID in URL if cookies are disabled.
109ini_set('session.use_trans_sid', false);
110
06b6660a
A
111session_name('shaarli');
112// Start session if needed (Some server auto-start sessions).
113if (session_id() == '') {
114 session_start();
115}
116
68bc2135
V
117// Regenerate session ID if invalid or not defined in cookie.
118if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) {
119 session_regenerate_id(true);
120 $_COOKIE['shaarli'] = session_id();
121}
122
278d9ee2 123$conf = new ConfigManager();
7f179985
A
124$conf->setEmpty('general.timezone', date_default_timezone_get());
125$conf->setEmpty('general.title', 'Shared links on '. escape(index_url($_SERVER)));
adc4aee8 126RainTPL::$tpl_dir = $conf->get('resource.raintpl_tpl').'/'.$conf->get('resource.theme').'/'; // template directory
894a3c4b 127RainTPL::$cache_dir = $conf->get('resource.raintpl_tmp'); // cache directory
45034273 128
278d9ee2 129$pluginManager = new PluginManager($conf);
da10377b 130$pluginManager->load($conf->get('general.enabled_plugins'));
6fc14d53 131
da10377b 132date_default_timezone_set($conf->get('general.timezone', 'UTC'));
d93d51b2 133
45034273
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134ob_start(); // Output buffering for the page cache.
135
45034273
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136// In case stupid admin has left magic_quotes enabled in php.ini:
137if (get_magic_quotes_gpc())
138{
139 function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
140 $_POST = array_map('stripslashes_deep', $_POST);
141 $_GET = array_map('stripslashes_deep', $_GET);
142 $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
143}
144
145// Prevent caching on client side or proxy: (yes, it's ugly)
146header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
147header("Cache-Control: no-store, no-cache, must-revalidate");
148header("Cache-Control: post-check=0, pre-check=0", false);
149header("Pragma: no-cache");
150
278d9ee2 151if (! is_file($conf->getConfigFileExt())) {
2e28269b 152 // Ensure Shaarli has proper access to its resources
278d9ee2 153 $errors = ApplicationUtils::checkResourcePermissions($conf);
2e28269b
V
154
155 if ($errors != array()) {
156 $message = '<p>Insufficient permissions:</p><ul>';
157
158 foreach ($errors as $error) {
159 $message .= '<li>'.$error.'</li>';
160 }
161 $message .= '</ul>';
162
163 header('Content-Type: text/html; charset=utf-8');
164 echo $message;
165 exit;
166 }
167
168 // Display the installation form if no existing config is found
278d9ee2 169 install($conf);
50c9a12e 170}
8a80e4fe 171
ae00595b 172// a token depending of deployment salt, user password, and the current ip
da10377b 173define('STAY_SIGNED_IN_TOKEN', sha1($conf->get('credentials.hash') . $_SERVER['REMOTE_ADDR'] . $conf->get('credentials.salt')));
8a80e4fe 174
408def1a
A
175// Sniff browser language and set date format accordingly.
176if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
177 autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
178}
45034273 179
278d9ee2
A
180/**
181 * Checking session state (i.e. is the user still logged in)
182 *
183 * @param ConfigManager $conf The configuration manager.
184 *
185 * @return bool: true if the user is logged in, false otherwise.
186 */
187function setup_login_state($conf)
188{
894a3c4b 189 if ($conf->get('security.open_shaarli')) {
02ad8fb6 190 return true;
ff69d87e 191 }
02ad8fb6
JP
192 $userIsLoggedIn = false; // By default, we do not consider the user as logged in;
193 $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
da10377b 194 if (! $conf->exists('credentials.login')) {
ff69d87e
FE
195 $userIsLoggedIn = false; // Shaarli is not configured yet.
196 $loginFailure = true;
197 }
198 if (isset($_COOKIE['shaarli_staySignedIn']) &&
199 $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
200 !$loginFailure)
201 {
278d9ee2 202 fillSessionInfo($conf);
ff69d87e
FE
203 $userIsLoggedIn = true;
204 }
205 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
684e662a 206 if (empty($_SESSION['uid'])
ee6f4b64 207 || ($conf->get('security.session_protection_disabled') === false && $_SESSION['ip'] != allIPs())
684e662a 208 || time() >= $_SESSION['expires_on'])
ff69d87e
FE
209 {
210 logout();
211 $userIsLoggedIn = false;
212 $loginFailure = true;
213 }
214 if (!empty($_SESSION['longlastingsession'])) {
215 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
216 }
217 else {
218 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
219 }
220 if (!$loginFailure) {
221 $userIsLoggedIn = true;
222 }
223
224 return $userIsLoggedIn;
225}
278d9ee2 226$userIsLoggedIn = setup_login_state($conf);
45034273 227
278d9ee2
A
228/**
229 * PubSubHubbub protocol support (if enabled) [UNTESTED]
230 * (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
231 *
232 * @param ConfigManager $conf Configuration Manager instance.
233 */
234function pubsubhub($conf)
45034273 235{
684e662a
A
236 $pshUrl = $conf->get('config.PUBSUBHUB_URL');
237 if (!empty($pshUrl))
45034273 238 {
684e662a
A
239 include_once './publisher.php';
240 $p = new Publisher($pshUrl);
241 $topic_url = array (
242 index_url($_SERVER).'?do=atom',
243 index_url($_SERVER).'?do=rss'
244 );
245 $p->publish_update($topic_url);
45034273
SS
246 }
247}
248
249// ------------------------------------------------------------------------------------------
250// Session management
45034273
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251
252// Returns the IP address of the client (Used to prevent session cookie hijacking.)
253function allIPs()
254{
684e662a 255 $ip = $_SERVER['REMOTE_ADDR'];
45034273
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256 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
257 if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
258 if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
259 return $ip;
260}
261
278d9ee2
A
262/**
263 * Load user session.
264 *
265 * @param ConfigManager $conf Configuration Manager instance.
266 */
267function fillSessionInfo($conf)
268{
ad6c27b7 269 $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid)
ae00595b 270 $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked.
da10377b 271 $_SESSION['username']= $conf->get('credentials.login');
ae00595b
CH
272 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration.
273}
274
278d9ee2
A
275/**
276 * Check that user/password is correct.
277 *
278 * @param string $login Username
279 * @param string $password User password
280 * @param ConfigManager $conf Configuration Manager instance.
281 *
282 * @return bool: authentication successful or not.
283 */
284function check_auth($login, $password, $conf)
45034273 285{
da10377b
A
286 $hash = sha1($password . $login . $conf->get('credentials.salt'));
287 if ($login == $conf->get('credentials.login') && $hash == $conf->get('credentials.hash'))
45034273 288 { // Login/password is correct.
278d9ee2 289 fillSessionInfo($conf);
894a3c4b 290 logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login successful');
278d9ee2 291 return true;
45034273 292 }
894a3c4b 293 logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login);
278d9ee2 294 return false;
45034273
SS
295}
296
297// Returns true if the user is logged in.
298function isLoggedIn()
299{
ff69d87e
FE
300 global $userIsLoggedIn;
301 return $userIsLoggedIn;
45034273
SS
302}
303
304// Force logout.
ff69d87e
FE
305function logout() {
306 if (isset($_SESSION)) {
307 unset($_SESSION['uid']);
308 unset($_SESSION['ip']);
309 unset($_SESSION['username']);
310 unset($_SESSION['privateonly']);
311 }
312 setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
ae00595b 313}
45034273
SS
314
315
316// ------------------------------------------------------------------------------------------
317// Brute force protection system
318// Several consecutive failed logins will ban the IP address for 30 minutes.
894a3c4b 319if (!is_file($conf->get('resource.ban_file', 'data/ipbans.php'))) {
684e662a
A
320 // FIXME! globals
321 file_put_contents(
894a3c4b 322 $conf->get('resource.ban_file', 'data/ipbans.php'),
684e662a
A
323 "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"
324 );
325}
894a3c4b 326include $conf->get('resource.ban_file', 'data/ipbans.php');
278d9ee2
A
327/**
328 * Signal a failed login. Will ban the IP if too many failures:
329 *
330 * @param ConfigManager $conf Configuration Manager instance.
331 */
332function ban_loginFailed($conf)
45034273 333{
684e662a 334 $ip = $_SERVER['REMOTE_ADDR'];
50d17918
A
335 $trusted = $conf->get('security.trusted_proxies', array());
336 if (in_array($ip, $trusted)) {
337 $ip = getIpAddressFromProxy($_SERVER, $trusted);
338 if (!$ip) {
339 return;
340 }
341 }
684e662a 342 $gb = $GLOBALS['IPBANS'];
50d17918
A
343 if (! isset($gb['FAILURES'][$ip])) {
344 $gb['FAILURES'][$ip]=0;
345 }
45034273 346 $gb['FAILURES'][$ip]++;
da10377b 347 if ($gb['FAILURES'][$ip] > ($conf->get('security.ban_after') - 1))
45034273 348 {
da10377b 349 $gb['BANS'][$ip] = time() + $conf->get('security.ban_after', 1800);
894a3c4b 350 logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
45034273
SS
351 }
352 $GLOBALS['IPBANS'] = $gb;
684e662a 353 file_put_contents(
894a3c4b 354 $conf->get('resource.ban_file', 'data/ipbans.php'),
684e662a
A
355 "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
356 );
45034273
SS
357}
358
278d9ee2
A
359/**
360 * Signals a successful login. Resets failed login counter.
361 *
362 * @param ConfigManager $conf Configuration Manager instance.
363 */
364function ban_loginOk($conf)
45034273 365{
684e662a
A
366 $ip = $_SERVER['REMOTE_ADDR'];
367 $gb = $GLOBALS['IPBANS'];
45034273
SS
368 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
369 $GLOBALS['IPBANS'] = $gb;
684e662a 370 file_put_contents(
894a3c4b 371 $conf->get('resource.ban_file', 'data/ipbans.php'),
684e662a
A
372 "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
373 );
45034273
SS
374}
375
278d9ee2
A
376/**
377 * Checks if the user CAN login. If 'true', the user can try to login.
378 *
379 * @param ConfigManager $conf Configuration Manager instance.
380 *
381 * @return bool: true if the user is allowed to login.
382 */
383function ban_canLogin($conf)
45034273
SS
384{
385 $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
386 if (isset($gb['BANS'][$ip]))
387 {
388 // User is banned. Check if the ban has expired:
389 if ($gb['BANS'][$ip]<=time())
390 { // Ban expired, user can try to login again.
894a3c4b 391 logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
45034273 392 unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
684e662a 393 file_put_contents(
894a3c4b 394 $conf->get('resource.ban_file', 'data/ipbans.php'),
684e662a
A
395 "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
396 );
45034273
SS
397 return true; // Ban has expired, user can login.
398 }
399 return false; // User is banned.
400 }
401 return true; // User is not banned.
402}
403
404// ------------------------------------------------------------------------------------------
405// Process login form: Check if login/password is correct.
406if (isset($_POST['login']))
407{
278d9ee2
A
408 if (!ban_canLogin($conf)) die('I said: NO. You are banned for the moment. Go away.');
409 if (isset($_POST['password'])
410 && tokenOk($_POST['token'])
411 && (check_auth($_POST['login'], $_POST['password'], $conf))
412 ) { // Login/password is OK.
413 ban_loginOk($conf);
45034273
SS
414 // If user wants to keep the session cookie even after the browser closes:
415 if (!empty($_POST['longlastingsession']))
416 {
ae00595b 417 setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
45034273
SS
418 $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
419 $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
2d9fab88
SS
420
421 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 422 session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
ad6c27b7 423 // Note: Never forget the trailing slash on the cookie path!
45034273
SS
424 session_regenerate_id(true); // Send cookie with new expiration date to browser.
425 }
426 else // Standard session expiration (=when browser closes)
427 {
2d9fab88 428 $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
2f32d074 429 session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
45034273
SS
430 session_regenerate_id(true);
431 }
f4c84ad7 432
45034273 433 // Optional redirect after login:
5fbabbb9
A
434 if (isset($_GET['post'])) {
435 $uri = '?post='. urlencode($_GET['post']);
436 foreach (array('description', 'source', 'title') as $param) {
437 if (!empty($_GET[$param])) {
438 $uri .= '&'.$param.'='.urlencode($_GET[$param]);
439 }
440 }
441 header('Location: '. $uri);
442 exit;
443 }
444
445 if (isset($_GET['edit_link'])) {
446 header('Location: ?edit_link='. escape($_GET['edit_link']));
447 exit;
448 }
449
450 if (isset($_POST['returnurl'])) {
451 // Prevent loops over login screen.
452 if (strpos($_POST['returnurl'], 'do=login') === false) {
e15f08d7 453 header('Location: '. generateLocation($_POST['returnurl'], $_SERVER['HTTP_HOST']));
5fbabbb9
A
454 exit;
455 }
45034273
SS
456 }
457 header('Location: ?'); exit;
458 }
459 else
460 {
278d9ee2 461 ban_loginFailed($conf);
85c4bdc2 462 $redir = '&username='. $_POST['login'];
5fbabbb9 463 if (isset($_GET['post'])) {
85c4bdc2 464 $redir .= '&post=' . urlencode($_GET['post']);
5fbabbb9
A
465 foreach (array('description', 'source', 'title') as $param) {
466 if (!empty($_GET[$param])) {
467 $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
468 }
469 }
470 }
fe16b01e 471 echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
45034273
SS
472 exit;
473 }
474}
475
476// ------------------------------------------------------------------------------------------
477// Misc utility functions:
478
ad6c27b7 479// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
45034273
SS
480function return_bytes($val)
481{
482 $val = trim($val); $last=strtolower($val[strlen($val)-1]);
483 switch($last)
484 {
485 case 'g': $val *= 1024;
486 case 'm': $val *= 1024;
487 case 'k': $val *= 1024;
488 }
489 return $val;
490}
491
492// Try to determine max file size for uploads (POST).
493// Returns an integer (in bytes)
494function getMaxFileSize()
495{
496 $size1 = return_bytes(ini_get('post_max_size'));
497 $size2 = return_bytes(ini_get('upload_max_filesize'));
498 // Return the smaller of two:
499 $maxsize = min($size1,$size2);
ad6c27b7 500 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
45034273
SS
501 return $maxsize;
502}
503
45034273
SS
504// ------------------------------------------------------------------------------------------
505// Token management for XSRF protection
506// Token should be used in any form which acts on data (create,update,delete,import...).
507if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session.
508
278d9ee2
A
509/**
510 * Returns a token.
511 *
512 * @param ConfigManager $conf Configuration Manager instance.
513 *
514 * @return string token.
515 */
516function getToken($conf)
45034273 517{
da10377b 518 $rnd = sha1(uniqid('', true) .'_'. mt_rand() . $conf->get('credentials.salt')); // We generate a random string.
45034273
SS
519 $_SESSION['tokens'][$rnd]=1; // Store it on the server side.
520 return $rnd;
521}
522
ad6c27b7 523// Tells if a token is OK. Using this function will destroy the token.
524// true=token is OK.
45034273
SS
525function tokenOk($token)
526{
527 if (isset($_SESSION['tokens'][$token]))
528 {
529 unset($_SESSION['tokens'][$token]); // Token is used: destroy it.
ad6c27b7 530 return true; // Token is OK.
45034273
SS
531 }
532 return false; // Wrong token, or already used.
533}
534
278d9ee2
A
535/**
536 * Daily RSS feed: 1 RSS entry per day giving all the links on that day.
537 * Gives the last 7 days (which have links).
538 * This RSS feed cannot be filtered.
539 *
540 * @param ConfigManager $conf Configuration Manager instance.
541 */
542function showDailyRSS($conf) {
45034273 543 // Cache system
5046bcb6 544 $query = $_SERVER['QUERY_STRING'];
01e48f26 545 $cache = new CachedPage(
684e662a 546 $conf->get('config.PAGE_CACHE'),
482d67bd 547 page_url($_SERVER),
01e48f26
V
548 startsWith($query,'do=dailyrss') && !isLoggedIn()
549 );
f3b8f9f0
A
550 $cached = $cache->cachedVersion();
551 if (!empty($cached)) {
552 echo $cached;
553 exit;
554 }
9f15ca9e 555
f3b8f9f0
A
556 // If cached was not found (or not usable), then read the database and build the response:
557 // Read links from database (and filter private links if used it not logged in).
9f15ca9e 558 $LINKSDB = new LinkDB(
894a3c4b 559 $conf->get('resource.datastore'),
02ad8fb6 560 isLoggedIn(),
894a3c4b
A
561 $conf->get('privacy.hide_public_links'),
562 $conf->get('redirector.url'),
563 $conf->get('redirector.encode_url')
9f15ca9e 564 );
bb8f712d 565
45034273 566 /* Some Shaarlies may have very few links, so we need to look
01878a75 567 back in time until we have enough days ($nb_of_days).
45034273 568 */
f3b8f9f0 569 $nb_of_days = 7; // We take 7 days.
684e662a 570 $today = date('Ymd');
f3b8f9f0
A
571 $days = array();
572
d592daea
A
573 foreach ($LINKSDB as $link) {
574 $day = $link['created']->format('Ymd'); // Extract day (without time)
01878a75 575 if (strcmp($day, $today) < 0) {
f3b8f9f0
A
576 if (empty($days[$day])) {
577 $days[$day] = array();
578 }
d592daea 579 $days[$day][] = $link;
f3b8f9f0
A
580 }
581
582 if (count($days) > $nb_of_days) {
583 break; // Have we collected enough days?
45034273 584 }
45034273 585 }
bb8f712d 586
45034273
SS
587 // Build the RSS feed.
588 header('Content-Type: application/rss+xml; charset=utf-8');
482d67bd 589 $pageaddr = escape(index_url($_SERVER));
45034273 590 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
f3b8f9f0 591 echo '<channel>';
da10377b 592 echo '<title>Daily - '. $conf->get('general.title') . '</title>';
f3b8f9f0
A
593 echo '<link>'. $pageaddr .'</link>';
594 echo '<description>Daily shared links</description>';
595 echo '<language>en-en</language>';
596 echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
597
598 // For each day.
d592daea 599 foreach ($days as $day => $links) {
205a4277 600 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
482d67bd 601 $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
bb8f712d 602
45034273 603 // We pre-format some fields for proper output.
d592daea
A
604 foreach ($links as &$link) {
605 $link['formatedDescription'] = format_description($link['description'], $conf->get('redirector.url'));
606 $link['thumbnail'] = thumbnail($conf, $link['url']);
607 $link['timestamp'] = $link['created']->getTimestamp();
608 if (startsWith($link['url'], '?')) {
609 $link['url'] = index_url($_SERVER) . $link['url']; // make permalink URL absolute
f3b8f9f0 610 }
45034273 611 }
f3b8f9f0 612
45034273 613 // Then build the HTML for this day:
bb8f712d 614 $tpl = new RainTPL;
da10377b 615 $tpl->assign('title', $conf->get('general.title'));
205a4277 616 $tpl->assign('daydate', $dayDate->getTimestamp());
f3b8f9f0
A
617 $tpl->assign('absurl', $absurl);
618 $tpl->assign('links', $links);
205a4277 619 $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
894a3c4b 620 $tpl->assign('hide_timestamps', $conf->get('privacy.hide_timestamps', false));
724f1e32 621 $html = $tpl->draw('dailyrss', true);
45034273 622
f3b8f9f0 623 echo $html . PHP_EOL;
bb8f712d 624 }
482d67bd 625 echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
bb8f712d 626
45034273
SS
627 $cache->cache(ob_get_contents());
628 ob_end_flush();
629 exit;
630}
631
38603b24
A
632/**
633 * Show the 'Daily' page.
634 *
278d9ee2
A
635 * @param PageBuilder $pageBuilder Template engine wrapper.
636 * @param LinkDB $LINKSDB LinkDB instance.
637 * @param ConfigManager $conf Configuration Manager instance.
638 * @param PluginManager $pluginManager Plugin Manager instane.
38603b24 639 */
278d9ee2 640function showDaily($pageBuilder, $LINKSDB, $conf, $pluginManager)
45034273 641{
684e662a 642 $day=date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
45034273 643 if (isset($_GET['day'])) $day=$_GET['day'];
bb8f712d 644
45034273
SS
645 $days = $LINKSDB->days();
646 $i = array_search($day,$days);
f3db3774 647 if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
bb8f712d
KT
648 $previousday='';
649 $nextday='';
45034273
SS
650 if ($i!==false)
651 {
f3db3774 652 if ($i>=1) $previousday=$days[$i-1];
45034273
SS
653 if ($i<count($days)-1) $nextday=$days[$i+1];
654 }
655
9186ab95 656 try {
528a6f8a 657 $linksToDisplay = $LINKSDB->filterDay($day);
9186ab95
V
658 } catch (Exception $exc) {
659 error_log($exc);
d1e2f8e5 660 $linksToDisplay = array();
9186ab95
V
661 }
662
45034273
SS
663 // We pre-format some fields for proper output.
664 foreach($linksToDisplay as $key=>$link)
665 {
5f85fcd8 666
dd62b9ba
SS
667 $taglist = explode(' ',$link['tags']);
668 uasort($taglist, 'strcasecmp');
669 $linksToDisplay[$key]['taglist']=$taglist;
894a3c4b 670 $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $conf->get('redirector.url'));
278d9ee2 671 $linksToDisplay[$key]['thumbnail'] = thumbnail($conf, $link['url']);
01878a75 672 $linksToDisplay[$key]['timestamp'] = $link['created']->getTimestamp();
45034273 673 }
bb8f712d 674
45034273 675 /* We need to spread the articles on 3 columns.
ad6c27b7 676 I did not want to use a JavaScript lib like http://masonry.desandro.com/
bb8f712d 677 so I manually spread entries with a simple method: I roughly evaluate the
45034273
SS
678 height of a div according to title and description length.
679 */
680 $columns=array(array(),array(),array()); // Entries to display, for each column.
681 $fill=array(0,0,0); // Rough estimate of columns fill.
682 foreach($linksToDisplay as $key=>$link)
683 {
684 // Roughly estimate length of entry (by counting characters)
685 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
686 // Description: 836 characters gives roughly 342 pixel height.
ad6c27b7 687 // This is not perfect, but it's usually OK.
45034273
SS
688 $length=strlen($link['title'])+(342*strlen($link['description']))/836;
689 if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
690 // Then put in column which is the less filled:
691 $smallest=min($fill); // find smallest value in array.
692 $index=array_search($smallest,$fill); // find index of this smallest value.
693 array_push($columns[$index],$link); // Put entry in this column.
694 $fill[$index]+=$length;
695 }
38603b24 696
205a4277 697 $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
6fc14d53
A
698 $data = array(
699 'linksToDisplay' => $linksToDisplay,
6fc14d53 700 'cols' => $columns,
205a4277 701 'day' => $dayDate->getTimestamp(),
6fc14d53
A
702 'previousday' => $previousday,
703 'nextday' => $nextday,
704 );
278d9ee2 705
6fc14d53
A
706 $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
707
708 foreach ($data as $key => $value) {
38603b24 709 $pageBuilder->assign($key, $value);
6fc14d53
A
710 }
711
38603b24 712 $pageBuilder->renderPage('daily');
45034273
SS
713 exit;
714}
715
278d9ee2
A
716/**
717 * Renders the linklist
718 *
719 * @param pageBuilder $PAGE pageBuilder instance.
720 * @param LinkDB $LINKSDB LinkDB instance.
721 * @param ConfigManager $conf Configuration Manager instance.
722 * @param PluginManager $pluginManager Plugin Manager instance.
723 */
724function showLinkList($PAGE, $LINKSDB, $conf, $pluginManager) {
725 buildLinkList($PAGE,$LINKSDB, $conf, $pluginManager); // Compute list of links to display
6fc14d53
A
726 $PAGE->renderPage('linklist');
727}
728
278d9ee2
A
729/**
730 * Render HTML page (according to URL parameters and user rights)
731 *
732 * @param ConfigManager $conf Configuration Manager instance.
733 * @param PluginManager $pluginManager Plugin Manager instance,
18e67967 734 * @param LinkDB $LINKSDB
278d9ee2 735 */
18e67967 736function renderPage($conf, $pluginManager, $LINKSDB)
45034273 737{
510377d2 738 $updater = new Updater(
894a3c4b 739 read_updates_file($conf->get('resource.updates')),
510377d2 740 $LINKSDB,
278d9ee2 741 $conf,
510377d2
A
742 isLoggedIn()
743 );
744 try {
745 $newUpdates = $updater->update();
746 if (! empty($newUpdates)) {
747 write_updates_file(
894a3c4b 748 $conf->get('resource.updates'),
510377d2
A
749 $updater->getDoneUpdates()
750 );
751 }
752 }
753 catch(Exception $e) {
754 die($e->getMessage());
755 }
756
278d9ee2 757 $PAGE = new PageBuilder($conf);
141a86c5
A
758 $PAGE->assign('linkcount', count($LINKSDB));
759 $PAGE->assign('privateLinkcount', count_private($LINKSDB));
7fde6de1 760 $PAGE->assign('plugin_errors', $pluginManager->getErrors());
6fc14d53
A
761
762 // Determine which page will be rendered.
763 $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
764 $targetPage = Router::findPage($query, $_GET, isLoggedIn());
765
766 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
767 // Then assign generated data to RainTPL.
768 $common_hooks = array(
fea5db7a 769 'includes',
6fc14d53
A
770 'header',
771 'footer',
6fc14d53 772 );
278d9ee2 773
6fc14d53
A
774 foreach($common_hooks as $name) {
775 $plugin_data = array();
776 $pluginManager->executeHooks('render_' . $name, $plugin_data,
777 array(
778 'target' => $targetPage,
779 'loggedin' => isLoggedIn()
780 )
781 );
782 $PAGE->assign('plugins_' . $name, $plugin_data);
783 }
784
45034273 785 // -------- Display login form.
6fc14d53 786 if ($targetPage == Router::$PAGE_LOGIN)
45034273 787 {
894a3c4b 788 if ($conf->get('security.open_shaarli')) { header('Location: ?'); exit; } // No need to login for open Shaarli
85c4bdc2
A
789 if (isset($_GET['username'])) {
790 $PAGE->assign('username', escape($_GET['username']));
791 }
5f85fcd8 792 $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
45034273
SS
793 $PAGE->renderPage('loginform');
794 exit;
795 }
796 // -------- User wants to logout.
5046bcb6 797 if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout'))
45034273 798 {
894a3c4b 799 invalidateCaches($conf->get('resource.page_cache'));
45034273
SS
800 logout();
801 header('Location: ?');
802 exit;
803 }
804
805 // -------- Picture wall
6fc14d53 806 if ($targetPage == Router::$PAGE_PICWALL)
45034273 807 {
ad6c27b7 808 // Optionally filter the results:
528a6f8a 809 $links = $LINKSDB->filterSearch($_GET);
822bffce 810 $linksToDisplay = array();
45034273
SS
811
812 // Get only links which have a thumbnail.
813 foreach($links as $link)
814 {
d592daea 815 $permalink='?'.$link['shorturl'];
278d9ee2 816 $thumb=lazyThumbnail($conf, $link['url'],$permalink);
45034273
SS
817 if ($thumb!='') // Only output links which have a thumbnail.
818 {
819 $link['thumbnail']=$thumb; // Thumbnail HTML code.
45034273
SS
820 $linksToDisplay[]=$link; // Add to array.
821 }
822 }
f3db3774 823
6fc14d53 824 $data = array(
6fc14d53
A
825 'linksToDisplay' => $linksToDisplay,
826 );
827 $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
828
829 foreach ($data as $key => $value) {
830 $PAGE->assign($key, $value);
831 }
832
45034273
SS
833 $PAGE->renderPage('picwall');
834 exit;
835 }
836
837 // -------- Tag cloud
6fc14d53 838 if ($targetPage == Router::$PAGE_TAGCLOUD)
45034273
SS
839 {
840 $tags= $LINKSDB->allTags();
a037ac69 841
45034273
SS
842 // We sort tags alphabetically, then choose a font size according to count.
843 // First, find max value.
f1e96a06
A
844 $maxcount = 0;
845 foreach ($tags as $value) {
846 $maxcount = max($maxcount, $value);
847 }
848
7af9a418 849 // Sort tags alphabetically: case insensitive, support locale if available.
f1e96a06
A
850 uksort($tags, function($a, $b) {
851 // Collator is part of PHP intl.
852 if (class_exists('Collator')) {
7eb0a832
A
853 $c = new Collator(setlocale(LC_COLLATE, 0));
854 if (!intl_is_failure(intl_get_error_code())) {
855 return $c->compare($a, $b);
856 }
f1e96a06 857 }
7eb0a832 858 return strcasecmp($a, $b);
f1e96a06
A
859 });
860
b0128609
A
861 $tagList = array();
862 foreach($tags as $key => $value) {
863 // Tag font size scaling:
864 // default 15 and 30 logarithm bases affect scaling,
865 // 22 and 6 are arbitrary font sizes for max and min sizes.
866 $size = log($value, 15) / log($maxcount, 30) * 2.2 + 0.8;
867 $tagList[$key] = array(
868 'count' => $value,
869 'size' => number_format($size, 2, '.', ''),
870 );
45034273 871 }
6fc14d53
A
872
873 $data = array(
6fc14d53
A
874 'tags' => $tagList,
875 );
876 $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
877
878 foreach ($data as $key => $value) {
879 $PAGE->assign($key, $value);
880 }
881
45034273 882 $PAGE->renderPage('tagcloud');
bb8f712d 883 exit;
45034273
SS
884 }
885
38603b24
A
886 // Daily page.
887 if ($targetPage == Router::$PAGE_DAILY) {
278d9ee2 888 showDaily($PAGE, $LINKSDB, $conf, $pluginManager);
38603b24
A
889 }
890
82e36802
A
891 // ATOM and RSS feed.
892 if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
893 $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
894 header('Content-Type: application/'. $feedType .'+xml; charset=utf-8');
895
896 // Cache system
897 $query = $_SERVER['QUERY_STRING'];
898 $cache = new CachedPage(
894a3c4b 899 $conf->get('resource.page_cache'),
82e36802
A
900 page_url($_SERVER),
901 startsWith($query,'do='. $targetPage) && !isLoggedIn()
902 );
903 $cached = $cache->cachedVersion();
5f143b72 904 if (!empty($cached)) {
82e36802
A
905 echo $cached;
906 exit;
907 }
69c474b9 908
82e36802
A
909 // Generate data.
910 $feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, isLoggedIn());
911 $feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
894a3c4b
A
912 $feedGenerator->setHideDates($conf->get('privacy.hide_timestamps') && !isLoggedIn());
913 $feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$conf->get('feed.rss_permalinks'));
82e36802
A
914 $data = $feedGenerator->buildData();
915
916 // Process plugin hook.
82e36802
A
917 $pluginManager->executeHooks('render_feed', $data, array(
918 'loggedin' => isLoggedIn(),
919 'target' => $targetPage,
920 ));
921
922 // Render the template.
923 $PAGE->assignAll($data);
924 $PAGE->renderPage('feed.'. $feedType);
925 $cache->cache(ob_get_contents());
926 ob_end_flush();
927 exit;
e67712ba
A
928 }
929
18e67967 930 // Display opensearch plugin (XML)
8f8113b9
A
931 if ($targetPage == Router::$PAGE_OPENSEARCH) {
932 header('Content-Type: application/xml; charset=utf-8');
933 $PAGE->assign('serverurl', index_url($_SERVER));
934 $PAGE->renderPage('opensearch');
935 exit;
936 }
937
45034273
SS
938 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
939 if (isset($_GET['addtag']))
940 {
941 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
942 if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
943 parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
732e683b 944
775803a0
A
945 // Prevent redirection loop
946 if (isset($params['addtag'])) {
947 unset($params['addtag']);
948 }
949
732e683b
FE
950 // Check if this tag is already in the search query and ignore it if it is.
951 // Each tag is always separated by a space
6ac95d9c
A
952 if (isset($params['searchtags'])) {
953 $current_tags = explode(' ', $params['searchtags']);
954 } else {
955 $current_tags = array();
956 }
732e683b
FE
957 $addtag = true;
958 foreach ($current_tags as $value) {
959 if ($value === $_GET['addtag']) {
960 $addtag = false;
961 break;
962 }
963 }
964 // Append the tag if necessary
965 if (empty($params['searchtags'])) {
966 $params['searchtags'] = trim($_GET['addtag']);
967 }
968 else if ($addtag) {
969 $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
970 }
971
45034273
SS
972 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
973 header('Location: ?'.http_build_query($params));
974 exit;
975 }
976
977 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
775803a0 978 if (isset($_GET['removetag'])) {
45034273 979 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
775803a0
A
980 if (empty($_SERVER['HTTP_REFERER'])) {
981 header('Location: ?');
982 exit;
983 }
984
985 // In case browser does not send HTTP_REFERER
986 parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
987
988 // Prevent redirection loop
989 if (isset($params['removetag'])) {
990 unset($params['removetag']);
991 }
992
993 if (isset($params['searchtags'])) {
822bffce 994 $tags = explode(' ', $params['searchtags']);
2c75f8e7
A
995 // Remove value from array $tags.
996 $tags = array_diff($tags, array($_GET['removetag']));
997 $params['searchtags'] = implode(' ',$tags);
998
999 if (empty($params['searchtags'])) {
775803a0 1000 unset($params['searchtags']);
775803a0 1001 }
2c75f8e7 1002
45034273
SS
1003 unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
1004 }
1005 header('Location: ?'.http_build_query($params));
1006 exit;
1007 }
1008
1009 // -------- User wants to change the number of links per page (linksperpage=...)
775803a0
A
1010 if (isset($_GET['linksperpage'])) {
1011 if (is_numeric($_GET['linksperpage'])) {
1012 $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
1013 }
1014
8bbf02e0
A
1015 if (! empty($_SERVER['HTTP_REFERER'])) {
1016 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'));
1017 } else {
1018 $location = '?';
1019 }
1020 header('Location: '. $location);
45034273
SS
1021 exit;
1022 }
bb8f712d 1023
45034273 1024 // -------- User wants to see only private links (toggle)
775803a0
A
1025 if (isset($_GET['privateonly'])) {
1026 if (empty($_SESSION['privateonly'])) {
1027 $_SESSION['privateonly'] = 1; // See only private links
1028 } else {
45034273
SS
1029 unset($_SESSION['privateonly']); // See all links
1030 }
775803a0 1031
8bbf02e0
A
1032 if (! empty($_SERVER['HTTP_REFERER'])) {
1033 $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'));
1034 } else {
1035 $location = '?';
1036 }
1037 header('Location: '. $location);
45034273
SS
1038 exit;
1039 }
1040
1041 // -------- Handle other actions allowed for non-logged in users:
1042 if (!isLoggedIn())
1043 {
ad6c27b7 1044 // User tries to post new link but is not logged in:
45034273
SS
1045 // Show login screen, then redirect to ?post=...
1046 if (isset($_GET['post']))
1047 {
a1795ddc 1048 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($_GET['source']):'')); // Redirect to login page, then back to post link.
45034273
SS
1049 exit;
1050 }
aedc912d 1051
278d9ee2 1052 showLinkList($PAGE, $LINKSDB, $conf, $pluginManager);
5fbabbb9
A
1053 if (isset($_GET['edit_link'])) {
1054 header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
1055 exit;
1056 }
1057
ad6c27b7 1058 exit; // Never remove this one! All operations below are reserved for logged in user.
45034273
SS
1059 }
1060
1061 // -------- All other functions are reserved for the registered user:
1062
1063 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
6fc14d53 1064 if ($targetPage == Router::$PAGE_TOOLS)
45034273 1065 {
6fc14d53 1066 $data = array(
6fc14d53 1067 'pageabsaddr' => index_url($_SERVER),
caa382dd 1068 'sslenabled' => !empty($_SERVER['HTTPS'])
6fc14d53
A
1069 );
1070 $pluginManager->executeHooks('render_tools', $data);
1071
1072 foreach ($data as $key => $value) {
1073 $PAGE->assign($key, $value);
1074 }
1075
45034273
SS
1076 $PAGE->renderPage('tools');
1077 exit;
1078 }
1079
1080 // -------- User wants to change his/her password.
6fc14d53 1081 if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
45034273 1082 {
894a3c4b 1083 if ($conf->get('security.open_shaarli')) {
684e662a
A
1084 die('You are not supposed to change a password on an Open Shaarli.');
1085 }
1086
45034273
SS
1087 if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
1088 {
ad6c27b7 1089 if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
45034273
SS
1090
1091 // Make sure old password is correct.
da10377b
A
1092 $oldhash = sha1($_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt'));
1093 if ($oldhash!= $conf->get('credentials.hash')) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
45034273 1094 // Save new password
684e662a 1095 // Salt renders rainbow-tables attacks useless.
da10377b
A
1096 $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
1097 $conf->set('credentials.hash', sha1($_POST['setpassword'] . $conf->get('credentials.login') . $conf->get('credentials.salt')));
dd484b90 1098 try {
684e662a 1099 $conf->write(isLoggedIn());
dd484b90
A
1100 }
1101 catch(Exception $e) {
1102 error_log(
1103 'ERROR while writing config file after changing password.' . PHP_EOL .
1104 $e->getMessage()
1105 );
1106
1107 // TODO: do not handle exceptions/errors in JS.
1108 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
1109 exit;
1110 }
fe16b01e 1111 echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
45034273
SS
1112 exit;
1113 }
1114 else // show the change password form.
1115 {
45034273
SS
1116 $PAGE->renderPage('changepassword');
1117 exit;
1118 }
1119 }
1120
1121 // -------- User wants to change configuration
6fc14d53 1122 if ($targetPage == Router::$PAGE_CONFIGURE)
45034273
SS
1123 {
1124 if (!empty($_POST['title']) )
1125 {
12ff86c9
A
1126 if (!tokenOk($_POST['token'])) {
1127 die('Wrong token.'); // Go away!
1128 }
45034273 1129 $tz = 'UTC';
12ff86c9
A
1130 if (!empty($_POST['continent']) && !empty($_POST['city'])
1131 && isTimeZoneValid($_POST['continent'], $_POST['city'])
1132 ) {
1133 $tz = $_POST['continent'] . '/' . $_POST['city'];
1134 }
da10377b 1135 $conf->set('general.timezone', $tz);
7f179985
A
1136 $conf->set('general.title', escape($_POST['title']));
1137 $conf->set('general.header_link', escape($_POST['titleLink']));
adc4aee8 1138 $conf->set('resource.theme', escape($_POST['theme']));
894a3c4b 1139 $conf->set('redirector.url', escape($_POST['redirector']));
da10377b 1140 $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
894a3c4b
A
1141 $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
1142 $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks']));
1143 $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
1144 $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks']));
cbfdcff2
A
1145 $conf->set('api.enabled', !empty($_POST['apiEnabled']));
1146 $conf->set('api.secret', escape($_POST['apiSecret']));
dd484b90 1147 try {
684e662a 1148 $conf->write(isLoggedIn());
adc4aee8 1149 invalidateCaches($conf->get('resource.page_cache'));
dd484b90
A
1150 }
1151 catch(Exception $e) {
1152 error_log(
1153 'ERROR while writing config file after configuration update.' . PHP_EOL .
1154 $e->getMessage()
1155 );
1156
1157 // TODO: do not handle exceptions/errors in JS.
684e662a 1158 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=configure\';</script>';
dd484b90
A
1159 exit;
1160 }
684e662a 1161 echo '<script>alert("Configuration was saved.");document.location=\'?do=configure\';</script>';
45034273
SS
1162 exit;
1163 }
1164 else // Show the configuration form.
1165 {
da10377b 1166 $PAGE->assign('title', $conf->get('general.title'));
adc4aee8 1167 $PAGE->assign('theme', $conf->get('resource.theme'));
a0df0651 1168 $PAGE->assign('theme_available', ThemeUtils::getThemes($conf->get('resource.raintpl_tpl')));
894a3c4b 1169 $PAGE->assign('redirector', $conf->get('redirector.url'));
da10377b 1170 list($timezone_form, $timezone_js) = generateTimeZoneForm($conf->get('general.timezone'));
d1e2f8e5 1171 $PAGE->assign('timezone_form', $timezone_form);
45034273 1172 $PAGE->assign('timezone_js',$timezone_js);
894a3c4b 1173 $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
2e193ad3 1174 $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
894a3c4b
A
1175 $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
1176 $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true));
1177 $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false));
cbfdcff2
A
1178 $PAGE->assign('api_enabled', $conf->get('api.enabled', true));
1179 $PAGE->assign('api_secret', $conf->get('api.secret'));
45034273
SS
1180 $PAGE->renderPage('configure');
1181 exit;
1182 }
1183 }
1184
1185 // -------- User wants to rename a tag or delete it
6fc14d53 1186 if ($targetPage == Router::$PAGE_CHANGETAG)
45034273 1187 {
6a6aa2b9 1188 if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
bdd1715b 1189 $PAGE->assign('tags', $LINKSDB->allTags());
45034273
SS
1190 $PAGE->renderPage('changetag');
1191 exit;
1192 }
6a6aa2b9
A
1193
1194 if (!tokenOk($_POST['token'])) {
1195 die('Wrong token.');
1196 }
45034273
SS
1197
1198 // Delete a tag:
6a6aa2b9 1199 if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
528a6f8a 1200 $needle = trim($_POST['fromtag']);
822bffce 1201 // True for case-sensitive tag search.
528a6f8a 1202 $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
45034273
SS
1203 foreach($linksToAlter as $key=>$value)
1204 {
1205 $tags = explode(' ',trim($value['tags']));
1206 unset($tags[array_search($needle,$tags)]); // Remove tag.
1207 $value['tags']=trim(implode(' ',$tags));
1208 $LINKSDB[$key]=$value;
1209 }
f21abf32 1210 $LINKSDB->save($conf->get('resource.page_cache'));
b87442f2 1211 echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?do=changetag\';</script>';
45034273
SS
1212 exit;
1213 }
1214
1215 // Rename a tag:
6a6aa2b9 1216 if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
528a6f8a 1217 $needle = trim($_POST['fromtag']);
822bffce 1218 // True for case-sensitive tag search.
528a6f8a 1219 $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
d6327389
A
1220 foreach($linksToAlter as $key=>$value) {
1221 $tags = preg_split('/\s+/', trim($value['tags']));
1222 // Replace tags value.
1223 $tags[array_search($needle, $tags)] = trim($_POST['totag']);
1224 $value['tags'] = implode(' ', array_unique($tags));
1225 $LINKSDB[$key] = $value;
45034273 1226 }
f21abf32 1227 $LINKSDB->save($conf->get('resource.page_cache')); // Save to disk.
d6327389 1228 echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode(escape($_POST['totag'])).'\';</script>';
45034273
SS
1229 exit;
1230 }
1231 }
1232
ad6c27b7 1233 // -------- User wants to add a link without using the bookmarklet: Show form.
6fc14d53 1234 if ($targetPage == Router::$PAGE_ADDLINK)
45034273 1235 {
45034273
SS
1236 $PAGE->renderPage('addlink');
1237 exit;
1238 }
1239
1240 // -------- User clicked the "Save" button when editing a link: Save link to database.
1241 if (isset($_POST['save_edit']))
1242 {
5a23950c
A
1243 // Go away!
1244 if (! tokenOk($_POST['token'])) {
1245 die('Wrong token.');
1246 }
01878a75
A
1247
1248 // lf_id should only be present if the link exists.
d592daea 1249 $id = !empty($_POST['lf_id']) ? intval(escape($_POST['lf_id'])) : $LINKSDB->getNextId();
01878a75
A
1250 // Linkdate is kept here to:
1251 // - use the same permalink for notes as they're displayed when creating them
1252 // - let users hack creation date of their posts
1253 // See: https://github.com/shaarli/Shaarli/wiki/Datastore-hacks#changing-the-timestamp-for-a-link
1254 $linkdate = escape($_POST['lf_linkdate']);
1255 if (isset($LINKSDB[$id])) {
1256 // Edit
d592daea 1257 $created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
01878a75 1258 $updated = new DateTime();
826c6af7 1259 $shortUrl = $LINKSDB[$id]['shorturl'];
01878a75
A
1260 } else {
1261 // New link
d592daea 1262 $created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
01878a75 1263 $updated = null;
826c6af7 1264 $shortUrl = link_small_hash($created, $id);
01878a75
A
1265 }
1266
5a23950c
A
1267 // Remove multiple spaces.
1268 $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags']));
ce354bf1
A
1269 // Remove first '-' char in tags.
1270 $tags = preg_replace('/(^| )\-/', '$1', $tags);
5a23950c
A
1271 // Remove duplicates.
1272 $tags = implode(' ', array_unique(explode(' ', $tags)));
9646b7da 1273
feebc6d4 1274 $url = trim($_POST['lf_url']);
5a23950c
A
1275 if (! startsWith($url, 'http:') && ! startsWith($url, 'https:')
1276 && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:')
1277 && ! startsWith($url, '?') && ! startsWith($url, 'javascript:')
1278 ) {
1279 $url = 'http://' . $url;
1280 }
1281
1282 $link = array(
01878a75 1283 'id' => $id,
5a23950c
A
1284 'title' => trim($_POST['lf_title']),
1285 'url' => $url,
ed853da7 1286 'description' => $_POST['lf_description'],
5a23950c 1287 'private' => (isset($_POST['lf_private']) ? 1 : 0),
01878a75 1288 'created' => $created,
9646b7da 1289 'updated' => $updated,
d592daea 1290 'tags' => str_replace(',', ' ', $tags),
826c6af7 1291 'shorturl' => $shortUrl,
5a23950c 1292 );
01878a75 1293
5a23950c
A
1294 // If title is empty, use the URL as title.
1295 if ($link['title'] == '') {
1296 $link['title'] = $link['url'];
1297 }
6fc14d53
A
1298
1299 $pluginManager->executeHooks('save_link', $link);
1300
01878a75 1301 $LINKSDB[$id] = $link;
f21abf32 1302 $LINKSDB->save($conf->get('resource.page_cache'));
45034273
SS
1303
1304 // If we are called from the bookmarklet, we must close the popup:
d01c2342
A
1305 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1306 echo '<script>self.close();</script>';
1307 exit;
1308 }
1309
fd50e14c 1310 $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
775803a0 1311 $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
5a23950c 1312 // Scroll to the link which has been edited.
d592daea 1313 $location .= '#' . $link['shorturl'];
5a23950c
A
1314 // After saving the link, redirect to the page the user was on.
1315 header('Location: '. $location);
45034273
SS
1316 exit;
1317 }
1318
1319 // -------- User clicked the "Cancel" button when editing a link.
1320 if (isset($_POST['cancel_edit']))
1321 {
ad6c27b7 1322 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1323 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
01878a75 1324 $link = $LINKSDB[(int) escape($_POST['lf_id'])];
45034273 1325 $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
01878a75 1326 // Scroll to the link which has been edited.
d592daea 1327 $returnurl .= '#'. $link['shorturl'];
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.
f4ebd5fe 1334 if ($targetPage == Router::$PAGE_DELETELINK)
45034273 1335 {
45034273 1336 // We do not need to ask for confirmation:
ad6c27b7 1337 // - confirmation is handled by JavaScript
45034273 1338 // - we are protected from XSRF by the token.
6fc14d53 1339
f4ebd5fe
A
1340 if (! tokenOk($_GET['token'])) {
1341 die('Wrong token.');
1342 }
01878a75 1343
f4ebd5fe
A
1344 $id = intval(escape($_GET['lf_linkdate']));
1345 $link = $LINKSDB[$id];
1346 $pluginManager->executeHooks('delete_link', $link);
01878a75 1347 unset($LINKSDB[$id]);
f4ebd5fe 1348 $LINKSDB->save($conf->get('resource.page_cache')); // save to disk
45034273
SS
1349
1350 // If we are called from the bookmarklet, we must close the popup:
d33c5d4c 1351 if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
95e5add4
A
1352
1353 $location = '?';
1354 if (isset($_SERVER['HTTP_REFERER'])) {
1355 // Don't redirect to where we were previously if it was a permalink or an edit_link, because it would 404.
1356 $location = generateLocation(
1357 $_SERVER['HTTP_REFERER'],
1358 $_SERVER['HTTP_HOST'],
1359 ['delete_link', 'edit_link', $link['shorturl']]
1360 );
d528433d 1361 }
1362
1363 header('Location: ' . $location); // After deleting the link, redirect to appropriate location
45034273
SS
1364 exit;
1365 }
1366
1367 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1368 if (isset($_GET['edit_link']))
1369 {
01878a75
A
1370 $id = (int) escape($_GET['edit_link']);
1371 $link = $LINKSDB[$id]; // Read database
45034273 1372 if (!$link) { header('Location: ?'); exit; } // Link not found in database.
d592daea 1373 $link['linkdate'] = $link['created']->format(LinkDB::LINK_DATE_FORMAT);
6fc14d53 1374 $data = array(
6fc14d53
A
1375 'link' => $link,
1376 'link_is_new' => false,
6fc14d53
A
1377 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1378 'tags' => $LINKSDB->allTags(),
1379 );
1380 $pluginManager->executeHooks('render_editlink', $data);
1381
1382 foreach ($data as $key => $value) {
1383 $PAGE->assign($key, $value);
1384 }
1385
45034273
SS
1386 $PAGE->renderPage('editlink');
1387 exit;
1388 }
1389
1390 // -------- User want to post a new link: Display link edit form.
d9d776af 1391 if (isset($_GET['post'])) {
ce7b0b64 1392 $url = cleanup_url($_GET['post']);
45034273
SS
1393
1394 $link_is_new = false;
9e1724f1 1395 // Check if URL is not already in database (in this case, we will edit the existing link)
ef591e7e 1396 $link = $LINKSDB->getLinkFromUrl($url);
01878a75 1397 if (! $link)
45034273 1398 {
9e1724f1 1399 $link_is_new = true;
d592daea 1400 $linkdate = strval(date(LinkDB::LINK_DATE_FORMAT));
9e1724f1 1401 // Get title if it was provided in URL (by the bookmarklet).
739dc243 1402 $title = empty($_GET['title']) ? '' : escape($_GET['title']);
9e1724f1 1403 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
739dc243
A
1404 $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1405 $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1406 $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
26c50346 1407 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
ef591e7e 1408 if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
451314eb 1409 // Short timeout to keep the application responsive
1557cefb 1410 list($headers, $content) = get_http_response($url, 4);
451314eb 1411 if (strpos($headers[0], '200 OK') !== false) {
1557cefb
A
1412 // Retrieve charset.
1413 $charset = get_charset($headers, $content);
1414 // Extract title.
1415 $title = html_extract_title($content);
1416 // Re-encode title in utf-8 if necessary.
ce7b0b64
A
1417 if (! empty($title) && strtolower($charset) != 'utf-8') {
1418 $title = mb_convert_encoding($title, 'utf-8', $charset);
9e1724f1
A
1419 }
1420 }
45034273 1421 }
1557cefb 1422
9e1724f1 1423 if ($url == '') {
d592daea 1424 $url = '?' . smallHash($linkdate . $LINKSDB->getNextId());
9e1724f1 1425 $title = 'Note: ';
27646ca5 1426 }
ce7b0b64
A
1427 $url = escape($url);
1428 $title = escape($title);
1557cefb 1429
9e1724f1
A
1430 $link = array(
1431 'linkdate' => $linkdate,
1432 'title' => $title,
ef591e7e 1433 'url' => $url,
9e1724f1
A
1434 'description' => $description,
1435 'tags' => $tags,
1436 'private' => $private
1437 );
01878a75 1438 } else {
d592daea 1439 $link['linkdate'] = $link['created']->format(LinkDB::LINK_DATE_FORMAT);
45034273
SS
1440 }
1441
6fc14d53 1442 $data = array(
6fc14d53
A
1443 'link' => $link,
1444 'link_is_new' => $link_is_new,
6fc14d53
A
1445 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1446 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1447 'tags' => $LINKSDB->allTags(),
cdbc8180 1448 'default_private_links' => $conf->get('privacy.default_private_links', false),
6fc14d53
A
1449 );
1450 $pluginManager->executeHooks('render_editlink', $data);
1451
1452 foreach ($data as $key => $value) {
1453 $PAGE->assign($key, $value);
1454 }
1455
45034273
SS
1456 $PAGE->renderPage('editlink');
1457 exit;
1458 }
1459
cd5327be 1460 if ($targetPage == Router::$PAGE_EXPORT) {
bb4a23aa
V
1461 // Export links as a Netscape Bookmarks file
1462
cd5327be 1463 if (empty($_GET['selection'])) {
45034273
SS
1464 $PAGE->renderPage('export');
1465 exit;
1466 }
45034273 1467
cd5327be
V
1468 // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1469 $selection = $_GET['selection'];
bb4a23aa
V
1470 if (isset($_GET['prepend_note_url'])) {
1471 $prependNoteUrl = $_GET['prepend_note_url'];
1472 } else {
1473 $prependNoteUrl = false;
1474 }
1475
cd5327be
V
1476 try {
1477 $PAGE->assign(
1478 'links',
bb4a23aa
V
1479 NetscapeBookmarkUtils::filterAndFormat(
1480 $LINKSDB,
1481 $selection,
1482 $prependNoteUrl,
1483 index_url($_SERVER)
1484 )
cd5327be
V
1485 );
1486 } catch (Exception $exc) {
1487 header('Content-Type: text/plain; charset=utf-8');
1488 echo $exc->getMessage();
1489 exit;
45034273 1490 }
cd5327be
V
1491 $now = new DateTime();
1492 header('Content-Type: text/html; charset=utf-8');
1493 header(
1494 'Content-disposition: attachment; filename=bookmarks_'
1495 .$selection.'_'.$now->format(LinkDB::LINK_DATE_FORMAT).'.html'
1496 );
1497 $PAGE->assign('date', $now->format(DateTime::RFC822));
1498 $PAGE->assign('eol', PHP_EOL);
1499 $PAGE->assign('selection', $selection);
1500 $PAGE->renderPage('export.bookmarks');
1501 exit;
45034273
SS
1502 }
1503
a973afea
V
1504 if ($targetPage == Router::$PAGE_IMPORT) {
1505 // Upload a Netscape bookmark dump to import its contents
1506
1507 if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) {
1508 // Show import dialog
1509 $PAGE->assign('maxfilesize', getMaxFileSize());
1510 $PAGE->renderPage('import');
45034273
SS
1511 exit;
1512 }
45034273 1513
a973afea
V
1514 // Import bookmarks from an uploaded file
1515 if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
1516 // The file is too big or some form field may be missing.
1517 echo '<script>alert("The file you are trying to upload is probably'
1518 .' bigger than what this webserver can accept ('
1519 .getMaxFileSize().' bytes).'
1520 .' Please upload in smaller chunks.");document.location=\'?do='
1521 .Router::$PAGE_IMPORT .'\';</script>';
1522 exit;
1523 }
1524 if (! tokenOk($_POST['token'])) {
1525 die('Wrong token.');
1526 }
1527 $status = NetscapeBookmarkUtils::import(
1528 $_POST,
1529 $_FILES,
1530 $LINKSDB,
48417aed 1531 $conf
a973afea
V
1532 );
1533 echo '<script>alert("'.$status.'");document.location=\'?do='
1534 .Router::$PAGE_IMPORT .'\';</script>';
45034273
SS
1535 exit;
1536 }
1537
dea0ba28
A
1538 // Plugin administration page
1539 if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1540 $pluginMeta = $pluginManager->getPluginsMeta();
1541
1542 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1543 $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
1544 // Load parameters.
684e662a 1545 $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array()));
dea0ba28
A
1546 uasort(
1547 $enabledPlugins,
1548 function($a, $b) { return $a['order'] - $b['order']; }
1549 );
1550 $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
1551
1552 $PAGE->assign('enabledPlugins', $enabledPlugins);
1553 $PAGE->assign('disabledPlugins', $disabledPlugins);
1554 $PAGE->renderPage('pluginsadmin');
1555 exit;
1556 }
1557
1558 // Plugin administration form action
1559 if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1560 try {
1561 if (isset($_POST['parameters_form'])) {
1562 unset($_POST['parameters_form']);
1563 foreach ($_POST as $param => $value) {
684e662a 1564 $conf->set('plugins.'. $param, escape($value));
dea0ba28
A
1565 }
1566 }
1567 else {
da10377b 1568 $conf->set('general.enabled_plugins', save_plugin_config($_POST));
dea0ba28 1569 }
684e662a 1570 $conf->write(isLoggedIn());
dea0ba28
A
1571 }
1572 catch (Exception $e) {
1573 error_log(
1574 'ERROR while saving plugin configuration:.' . PHP_EOL .
1575 $e->getMessage()
1576 );
1577
1578 // TODO: do not handle exceptions/errors in JS.
59edea42 1579 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>';
dea0ba28
A
1580 exit;
1581 }
1582 header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
1583 exit;
1584 }
1585
45034273 1586 // -------- Otherwise, simply display search form and links:
278d9ee2 1587 showLinkList($PAGE, $LINKSDB, $conf, $pluginManager);
45034273
SS
1588 exit;
1589}
1590
528a6f8a
A
1591/**
1592 * Template for the list of links (<div id="linklist">)
1593 * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1594 *
278d9ee2
A
1595 * @param pageBuilder $PAGE pageBuilder instance.
1596 * @param LinkDB $LINKSDB LinkDB instance.
1597 * @param ConfigManager $conf Configuration Manager instance.
1598 * @param PluginManager $pluginManager Plugin Manager instance.
528a6f8a 1599 */
278d9ee2 1600function buildLinkList($PAGE,$LINKSDB, $conf, $pluginManager)
45034273 1601{
528a6f8a 1602 // Used in templates
b3051a6a
A
1603 $searchtags = !empty($_GET['searchtags']) ? escape(normalize_spaces($_GET['searchtags'])) : '';
1604 $searchterm = !empty($_GET['searchterm']) ? escape(normalize_spaces($_GET['searchterm'])) : '';
822bffce 1605
528a6f8a
A
1606 // Smallhash filter
1607 if (! empty($_SERVER['QUERY_STRING'])
1608 && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
1609 try {
1610 $linksToDisplay = $LINKSDB->filterHash($_SERVER['QUERY_STRING']);
1611 } catch (LinkNotFoundException $e) {
1612 $PAGE->render404($e->getMessage());
45034273
SS
1613 exit;
1614 }
528a6f8a
A
1615 } else {
1616 // Filter links according search parameters.
7f96d9ec
A
1617 $visibility = ! empty($_SESSION['privateonly']) ? 'private' : 'all';
1618 $linksToDisplay = $LINKSDB->filterSearch($_GET, false, $visibility);
45034273
SS
1619 }
1620
1621 // ---- Handle paging.
822bffce
A
1622 $keys = array();
1623 foreach ($linksToDisplay as $key => $value) {
1624 $keys[] = $key;
1625 }
45034273 1626
97ef33bb 1627
45034273
SS
1628
1629 // Select articles according to paging.
822bffce
A
1630 $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1631 $pagecount = $pagecount == 0 ? 1 : $pagecount;
1632 $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1633 $page = $page < 1 ? 1 : $page;
1634 $page = $page > $pagecount ? $pagecount : $page;
1635 // Start index.
1636 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1637 $end = $i + $_SESSION['LINKS_PER_PAGE'];
1638 $linkDisp = array();
45034273
SS
1639 while ($i<$end && $i<count($keys))
1640 {
1641 $link = $linksToDisplay[$keys[$i]];
894a3c4b 1642 $link['description'] = format_description($link['description'], $conf->get('redirector.url'));
822bffce
A
1643 $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
1644 $link['class'] = $link['private'] == 0 ? $classLi : 'private';
01878a75 1645 $link['timestamp'] = $link['created']->getTimestamp();
9646b7da 1646 if (! empty($link['updated'])) {
01878a75 1647 $link['updated_timestamp'] = $link['updated']->getTimestamp();
9646b7da
A
1648 } else {
1649 $link['updated_timestamp'] = '';
1650 }
b3051a6a 1651 $taglist = preg_split('/\s+/', $link['tags'], -1, PREG_SPLIT_NO_EMPTY);
a5752e77 1652 uasort($taglist, 'strcasecmp');
822bffce 1653 $link['taglist'] = $taglist;
822bffce
A
1654 // Check for both signs of a note: starting with ? and 7 chars long.
1655 if ($link['url'][0] === '?' &&
1656 strlen($link['url']) === 7) {
1657 $link['url'] = index_url($_SERVER) . $link['url'];
b47f515a 1658 }
d33c5d4c 1659
45034273
SS
1660 $linkDisp[$keys[$i]] = $link;
1661 $i++;
1662 }
bb8f712d 1663
45034273 1664 // Compute paging navigation
c51fae92
A
1665 $searchtagsUrl = empty($searchtags) ? '' : '&searchtags=' . urlencode($searchtags);
1666 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
822bffce
A
1667 $previous_page_url = '';
1668 if ($i != count($keys)) {
c51fae92 1669 $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
822bffce
A
1670 }
1671 $next_page_url='';
1672 if ($page>1) {
c51fae92 1673 $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
822bffce 1674 }
45034273 1675
45034273 1676 // Fill all template fields.
6fc14d53 1677 $data = array(
6fc14d53
A
1678 'previous_page_url' => $previous_page_url,
1679 'next_page_url' => $next_page_url,
1680 'page_current' => $page,
1681 'page_max' => $pagecount,
1682 'result_count' => count($linksToDisplay),
c51fae92
A
1683 'search_term' => $searchterm,
1684 'search_tags' => $searchtags,
7c26f662 1685 'visibility' => ! empty($_SESSION['privateonly']) ? 'private' : '',
894a3c4b 1686 'redirector' => $conf->get('redirector.url'), // Optional redirector URL.
6fc14d53
A
1687 'links' => $linkDisp,
1688 'tags' => $LINKSDB->allTags(),
1689 );
97ef33bb
A
1690
1691 // If there is only a single link, we change on-the-fly the title of the page.
1692 if (count($linksToDisplay) == 1) {
1693 $data['pagetitle'] = $linksToDisplay[$keys[0]]['title'] .' - '. $conf->get('general.title');
18cca483 1694 }
6fc14d53 1695
6fc14d53
A
1696 $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
1697
1698 foreach ($data as $key => $value) {
1699 $PAGE->assign($key, $value);
1700 }
1701
45034273
SS
1702 return;
1703}
1704
278d9ee2
A
1705/**
1706 * Compute the thumbnail for a link.
1707 *
1708 * With a link to the original URL.
1709 * Understands various services (youtube.com...)
1710 * Input: $url = URL for which the thumbnail must be found.
1711 * $href = if provided, this URL will be followed instead of $url
1712 * Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1713 * Some of them may be missing.
1714 * Return an empty array if no thumbnail available.
1715 *
1716 * @param ConfigManager $conf Configuration Manager instance.
1717 * @param string $url
1718 * @param string|bool $href
1719 *
1720 * @return array
1721 */
1722function computeThumbnail($conf, $url, $href = false)
45034273 1723{
894a3c4b 1724 if (!$conf->get('thumbnail.enable_thumbnails')) return array();
45034273
SS
1725 if ($href==false) $href=$url;
1726
1727 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
ad6c27b7 1728 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
45034273
SS
1729 // ^^^^^^^^^^^ ^^^^^^^^^^^
1730 $domain = parse_url($url,PHP_URL_HOST);
1731 if ($domain=='youtube.com' || $domain=='www.youtube.com')
1732 {
1733 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1a663a0f 1734 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
45034273
SS
1735 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
1736 }
1737 if ($domain=='youtu.be') // Youtube short links
1738 {
1739 $path = parse_url($url,PHP_URL_PATH);
1a663a0f 1740 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
bb8f712d 1741 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
45034273
SS
1742 }
1743 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
1744 {
1745 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
1746 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
bb8f712d
KT
1747 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
1748 }
1749
45034273
SS
1750 if ($domain=='imgur.com')
1751 {
1752 $path = parse_url($url,PHP_URL_PATH);
1753 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1a663a0f 1754 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
45034273 1755 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1a663a0f 1756 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
45034273
SS
1757 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1758
1a663a0f 1759 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
45034273
SS
1760 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1761 }
1762 if ($domain=='i.imgur.com')
1763 {
1764 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1a663a0f 1765 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
45034273
SS
1766 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1767 }
1768 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
1769 {
1770 if (strpos($url,'dailymotion.com/video/')!==false)
1771 {
1772 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
1773 return array('src'=>$thumburl,
1774 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
1775 }
1776 }
1777 if (endsWith($domain,'.imageshack.us'))
1778 {
1779 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1780 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1781 {
1782 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
1783 return array('src'=>$thumburl,
1784 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
1785 }
1786 }
1787
1788 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1789 // So we deport the thumbnail generation in order not to slow down page generation
1790 // (and we also cache the thumbnail)
1791
894a3c4b 1792 if (! $conf->get('thumbnail.enable_localcache')) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
45034273
SS
1793
1794 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
1795 || $domain=='vimeo.com'
1796 || $domain=='ted.com' || endsWith($domain,'.ted.com')
1797 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
1798 )
1799 {
1800 if ($domain=='vimeo.com')
ad6c27b7 1801 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
45034273
SS
1802 $path = parse_url($url,PHP_URL_PATH);
1803 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
1804 }
1805 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
ad6c27b7 1806 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
45034273
SS
1807 $path = parse_url($url,PHP_URL_PATH);
1808 if (!preg_match('!/\d+.+?!',$path)) return array();
1809 }
1810 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
ad6c27b7 1811 { // Make sure this TED URL points to a video (/talks/...)
45034273
SS
1812 $path = parse_url($url,PHP_URL_PATH);
1813 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
1814 }
da10377b 1815 $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 1816 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
45034273
SS
1817 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
1818 }
1819
1820 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1821 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1822 // But using the extension will do.
1823 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1824 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1825 {
da10377b 1826 $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
482d67bd 1827 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
bb8f712d 1828 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
45034273
SS
1829 }
1830 return array(); // No thumbnail.
1831
1832}
1833
1834
1835// Returns the HTML code to display a thumbnail for a link
1836// with a link to the original URL.
1837// Understands various services (youtube.com...)
ad6c27b7 1838// Input: $url = URL for which the thumbnail must be found.
45034273
SS
1839// $href = if provided, this URL will be followed instead of $url
1840// Returns '' if no thumbnail available.
1841function thumbnail($url,$href=false)
1842{
278d9ee2
A
1843 // FIXME!
1844 global $conf;
1845 $t = computeThumbnail($conf, $url,$href);
45034273 1846 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
bb8f712d 1847
5f85fcd8
A
1848 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
1849 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1850 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1851 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1852 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273
SS
1853 $html.='></a>';
1854 return $html;
1855}
1856
45034273
SS
1857// Returns the HTML code to display a thumbnail for a link
1858// for the picture wall (using lazy image loading)
1859// Understands various services (youtube.com...)
ad6c27b7 1860// Input: $url = URL for which the thumbnail must be found.
45034273
SS
1861// $href = if provided, this URL will be followed instead of $url
1862// Returns '' if no thumbnail available.
278d9ee2 1863function lazyThumbnail($conf, $url,$href=false)
45034273 1864{
278d9ee2
A
1865 // FIXME!
1866 global $conf;
1867 $t = computeThumbnail($conf, $url,$href);
45034273
SS
1868 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
1869
5f85fcd8 1870 $html='<a href="'.escape($t['href']).'">';
bb8f712d 1871
34047d23 1872 // Lazy image
5f85fcd8 1873 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
858c5c2b 1874
5f85fcd8
A
1875 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1876 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1877 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1878 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 1879 $html.='>';
bb8f712d 1880
ad6c27b7 1881 // No-JavaScript fallback.
5f85fcd8
A
1882 $html.='<noscript><img src="'.escape($t['src']).'"';
1883 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1884 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1885 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1886 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
45034273 1887 $html.='></noscript></a>';
bb8f712d 1888
45034273
SS
1889 return $html;
1890}
1891
1892
278d9ee2
A
1893/**
1894 * Installation
1895 * This function should NEVER be called if the file data/config.php exists.
1896 *
1897 * @param ConfigManager $conf Configuration Manager instance.
1898 */
1899function install($conf)
45034273
SS
1900{
1901 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
f6a6ca0a 1902 if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
45034273 1903
f37664a2
SS
1904
1905 // This part makes sure sessions works correctly.
1906 // (Because on some hosts, session.save_path may not be set correctly,
1907 // or we may not have write access to it.)
1908 if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
1909 { // Step 2: Check if data in session is correct.
1910 echo '<pre>Sessions do not seem to work correctly on your server.<br>';
1911 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
01ec1791 1912 echo 'It currently points to '.session_save_path().'<br>';
1913 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
1914 echo '<br><a href="?">Click to try again.</a></pre>';
f37664a2
SS
1915 die;
1916 }
1917 if (!isset($_SESSION['session_tested']))
1918 { // Step 1 : Try to store data in session and reload page.
1919 $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
482d67bd 1920 header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
f37664a2
SS
1921 }
1922 if (isset($_GET['test_session']))
ad6c27b7 1923 { // Step 3: Sessions are OK. Remove test parameter from URL.
482d67bd 1924 header('Location: '.index_url($_SERVER));
f37664a2
SS
1925 }
1926
1927
45034273
SS
1928 if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
1929 {
1930 $tz = 'UTC';
12ff86c9
A
1931 if (!empty($_POST['continent']) && !empty($_POST['city'])
1932 && isTimeZoneValid($_POST['continent'], $_POST['city'])
1933 ) {
1934 $tz = $_POST['continent'].'/'.$_POST['city'];
d1e2f8e5 1935 }
da10377b 1936 $conf->set('general.timezone', $tz);
684e662a 1937 $login = $_POST['setlogin'];
da10377b 1938 $conf->set('credentials.login', $login);
684e662a 1939 $salt = sha1(uniqid('', true) .'_'. mt_rand());
da10377b
A
1940 $conf->set('credentials.salt', $salt);
1941 $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt));
684e662a 1942 if (!empty($_POST['title'])) {
7f179985 1943 $conf->set('general.title', escape($_POST['title']));
684e662a 1944 } else {
da10377b 1945 $conf->set('general.title', 'Shared links on '.escape(index_url($_SERVER)));
684e662a 1946 }
894a3c4b 1947 $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
cbfdcff2
A
1948 $conf->set('api.enabled', !empty($_POST['enableApi']));
1949 $conf->set(
1950 'api.secret',
1951 generate_api_secret(
e3a430ba
A
1952 $conf->get('credentials.login'),
1953 $conf->get('credentials.salt')
cbfdcff2
A
1954 )
1955 );
dd484b90 1956 try {
684e662a
A
1957 // Everything is ok, let's create config file.
1958 $conf->write(isLoggedIn());
dd484b90
A
1959 }
1960 catch(Exception $e) {
1961 error_log(
1962 'ERROR while writing config file after installation.' . PHP_EOL .
1963 $e->getMessage()
1964 );
1965
1966 // TODO: do not handle exceptions/errors in JS.
1967 echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
1968 exit;
1969 }
fe16b01e 1970 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
45034273
SS
1971 exit;
1972 }
1973
1974 // Display config form:
d1e2f8e5
V
1975 list($timezone_form, $timezone_js) = generateTimeZoneForm();
1976 $timezone_html = '';
1977 if ($timezone_form != '') {
1978 $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
1979 }
bb8f712d 1980
278d9ee2 1981 $PAGE = new PageBuilder($conf);
45034273
SS
1982 $PAGE->assign('timezone_html',$timezone_html);
1983 $PAGE->assign('timezone_js',$timezone_js);
1984 $PAGE->renderPage('install');
1985 exit;
1986}
1987
278d9ee2
A
1988/**
1989 * Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
1990 * I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
1991 * The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
1992 * This function is called by passing the URL:
1993 * http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
1994 * [URL] is the URL of the link (e.g. a flickr page)
1995 * [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
1996 * The function below will fetch the image from the webservice and store it in the cache.
1997 *
1998 * @param ConfigManager $conf Configuration Manager instance,
1999 */
2000function genThumbnail($conf)
45034273
SS
2001{
2002 // Make sure the parameters in the URL were generated by us.
da10377b 2003 $sign = hash_hmac('sha256', $_GET['url'], $conf->get('credentials.salt'));
ad6c27b7 2004 if ($sign!=$_GET['hmac']) die('Naughty boy!');
45034273 2005
894a3c4b 2006 $cacheDir = $conf->get('resource.thumbnails_cache', 'cache');
45034273
SS
2007 // Let's see if we don't already have the image for this URL in the cache.
2008 $thumbname=hash('sha1',$_GET['url']).'.jpg';
684e662a 2009 if (is_file($cacheDir .'/'. $thumbname))
45034273
SS
2010 { // We have the thumbnail, just serve it:
2011 header('Content-Type: image/jpeg');
684e662a 2012 echo file_get_contents($cacheDir .'/'. $thumbname);
45034273
SS
2013 return;
2014 }
2015 // We may also serve a blank image (if service did not respond)
2016 $blankname=hash('sha1',$_GET['url']).'.gif';
684e662a 2017 if (is_file($cacheDir .'/'. $blankname))
45034273
SS
2018 {
2019 header('Content-Type: image/gif');
684e662a 2020 echo file_get_contents($cacheDir .'/'. $blankname);
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2021 return;
2022 }
2023
2024 // Otherwise, generate the thumbnail.
2025 $url = $_GET['url'];
2026 $domain = parse_url($url,PHP_URL_HOST);
2027
2028 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
2029 {
ad6c27b7 2030 // Crude replacement to handle new flickr domain policy (They prefer www. now)
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2031 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
2032
2033 // Is this a link to an image, or to a flickr page ?
2034 $imageurl='';
5046bcb6 2035 if (endsWith(parse_url($url, PHP_URL_PATH), '.jpg'))
ad6c27b7 2036 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
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2037 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
2038 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
2039 }
ad6c27b7 2040 else // This is a flickr page (html)
45034273 2041 {
451314eb 2042 // Get the flickr html page.
1557cefb 2043 list($headers, $content) = get_http_response($url, 20);
451314eb 2044 if (strpos($headers[0], '200 OK') !== false)
45034273 2045 {
ad6c27b7 2046 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1557cefb 2047 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
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2048 if (!empty($matches[1])) $imageurl=$matches[1];
2049
2050 // In albums (and some other pages), the link rel="image_src" is not provided,
2051 // but flickr provides:
2052 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2053 if ($imageurl=='')
2054 {
1557cefb 2055 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
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2056 if (!empty($matches[1])) $imageurl=$matches[1];
2057 }
2058 }
2059 }
2060
2061 if ($imageurl!='')
2062 { // Let's download the image.
451314eb 2063 // Image is 240x120, so 10 seconds to download should be enough.
1557cefb 2064 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2065 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2066 // Save image to cache.
684e662a 2067 file_put_contents($cacheDir .'/'. $thumbname, $content);
45034273 2068 header('Content-Type: image/jpeg');
1557cefb 2069 echo $content;
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2070 return;
2071 }
2072 }
2073 }
2074
2075 elseif ($domain=='vimeo.com' )
2076 {
2077 // This is more complex: we have to perform a HTTP request, then parse the result.
ad6c27b7 2078 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
45034273 2079 $vid = substr(parse_url($url,PHP_URL_PATH),1);
1557cefb 2080 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
451314eb 2081 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2082 $t = unserialize($content);
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2083 $imageurl = $t[0]['thumbnail_medium'];
2084 // Then we download the image and serve it to our client.
1557cefb 2085 list($headers, $content) = get_http_response($imageurl, 10);
451314eb 2086 if (strpos($headers[0], '200 OK') !== false) {
1557cefb 2087 // Save image to cache.
684e662a 2088 file_put_contents($cacheDir .'/'. $thumbname, $content);
45034273 2089 header('Content-Type: image/jpeg');
1557cefb 2090 echo $content;
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2091 return;
2092 }
2093 }
2094 }
2095
2096 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2097 {
2098 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2099 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2100 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
1557cefb 2101 list($headers, $content) = get_http_response($url, 5);
451314eb 2102 if (strpos($headers[0], '200 OK') !== false) {
45034273 2103 // Extract the link to the thumbnail
1557cefb 2104 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
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2105 if (!empty($matches[1]))
2106 { // Let's download the image.
2107 $imageurl=$matches[1];
451314eb 2108 // No control on image size, so wait long enough
1557cefb 2109 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2110 if (strpos($headers[0], '200 OK') !== false) {
684e662a 2111 $filepath = $cacheDir .'/'. $thumbname;
1557cefb 2112 file_put_contents($filepath, $content); // Save image to cache.
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SS
2113 if (resizeImage($filepath))
2114 {
2115 header('Content-Type: image/jpeg');
2116 echo file_get_contents($filepath);
2117 return;
2118 }
2119 }
2120 }
2121 }
2122 }
bb8f712d 2123
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SS
2124 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2125 {
2126 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2127 // http://xkcd.com/327/
2128 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
1557cefb 2129 list($headers, $content) = get_http_response($url, 5);
451314eb 2130 if (strpos($headers[0], '200 OK') !== false) {
45034273 2131 // Extract the link to the thumbnail
1557cefb 2132 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
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2133 if (!empty($matches[1]))
2134 { // Let's download the image.
2135 $imageurl=$matches[1];
451314eb 2136 // No control on image size, so wait long enough
1557cefb 2137 list($headers, $content) = get_http_response($imageurl, 20);
451314eb 2138 if (strpos($headers[0], '200 OK') !== false) {
684e662a 2139 $filepath = $cacheDir.'/'.$thumbname;
1557cefb
A
2140 // Save image to cache.
2141 file_put_contents($filepath, $content);
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SS
2142 if (resizeImage($filepath))
2143 {
2144 header('Content-Type: image/jpeg');
2145 echo file_get_contents($filepath);
2146 return;
2147 }
2148 }
2149 }
2150 }
bb8f712d 2151 }
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SS
2152
2153 else
2154 {
2155 // For all other domains, we try to download the image and make a thumbnail.
451314eb 2156 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
1557cefb 2157 list($headers, $content) = get_http_response($url, 30);
451314eb 2158 if (strpos($headers[0], '200 OK') !== false) {
684e662a 2159 $filepath = $cacheDir .'/'.$thumbname;
1557cefb
A
2160 // Save image to cache.
2161 file_put_contents($filepath, $content);
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SS
2162 if (resizeImage($filepath))
2163 {
2164 header('Content-Type: image/jpeg');
2165 echo file_get_contents($filepath);
2166 return;
2167 }
2168 }
2169 }
2170
2171
2172 // Otherwise, return an empty image (8x8 transparent gif)
2173 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
684e662a
A
2174 // Also put something in cache so that this URL is not requested twice.
2175 file_put_contents($cacheDir .'/'. $blankname, $blankgif);
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SS
2176 header('Content-Type: image/gif');
2177 echo $blankgif;
2178}
2179
2180// Make a thumbnail of the image (to width: 120 pixels)
2181// Returns true if success, false otherwise.
2182function resizeImage($filepath)
2183{
2184 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2185
2186 // Trick: some stupid people rename GIF as JPEG... or else.
2187 // So we really try to open each image type whatever the extension is.
2188 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2189 $im=false;
2190 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2191 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2192 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2193 if (!$im) return false; // Unable to open image (corrupted or not an image)
2194 $w = imagesx($im);
2195 $h = imagesy($im);
2196 $ystart = 0; $yheight=$h;
2197 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2198 $nw = 120; // Desired width
2199 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2200 // Resize image:
2201 $im2 = imagecreatetruecolor($nw,$nh);
2202 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2203 imageinterlace($im2,true); // For progressive JPEG.
2204 $tempname=$filepath.'_TEMP.jpg';
2205 imagejpeg($im2, $tempname, 90);
2206 imagedestroy($im);
2207 imagedestroy($im2);
9e820906 2208 unlink($filepath);
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2209 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2210 return true;
2211}
2212
278d9ee2
A
2213if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=genthumbnail')) { genThumbnail($conf); exit; } // Thumbnail generation/cache does not need the link database.
2214if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) { showDailyRSS($conf); exit; }
684e662a 2215if (!isset($_SESSION['LINKS_PER_PAGE'])) {
da10377b 2216 $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
684e662a 2217}
18e67967
A
2218
2219$linkDb = new LinkDB(
2220 $conf->get('resource.datastore'),
2221 isLoggedIn(),
2222 $conf->get('privacy.hide_public_links'),
2223 $conf->get('redirector.url'),
2224 $conf->get('redirector.encode_url')
2225);
2226
2227$container = new \Slim\Container();
2228$container['conf'] = $conf;
2229$container['plugins'] = $pluginManager;
2230$app = new \Slim\App($container);
2231
2232// REST API routes
2233$app->group('/api/v1', function() {
465b1c40 2234 $this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo');
c3b00963 2235 $this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks');
16e3d006 2236 $this->get('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:getLink');
465b1c40 2237})->add('\Shaarli\Api\ApiMiddleware');
18e67967
A
2238
2239$response = $app->run(true);
2240// Hack to make Slim and Shaarli router work together:
16e3d006
A
2241// If a Slim route isn't found and NOT API call, we call renderPage().
2242if ($response->getStatusCode() == 404 && strpos($_SERVER['REQUEST_URI'], '/api/v1') === false) {
18e67967
A
2243 // We use UTF-8 for proper international characters handling.
2244 header('Content-Type: text/html; charset=utf-8');
2245 renderPage($conf, $pluginManager, $linkDb);
2246} else {
2247 $app->respond($response);
2248}