]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
3 * Shaarli v0.7.0 - Shaare your links...
5 * The personal, minimalist, super-fast, no-database Delicious clone.
7 * Friendly fork by the Shaarli community:
8 * - https://github.com/shaarli/Shaarli
10 * Original project by sebsauvage.net:
11 * - http://sebsauvage.net/wiki/doku.php?id=php:shaarli
12 * - https://github.com/sebsauvage/Shaarli
14 * Licence: http://www.opensource.org/licenses/zlib-license.php
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
21 if ( date_default_timezone_get () == '' ) {
22 date_default_timezone_set ( 'UTC' );
28 define ( 'shaarli_version' , '0.7.0' );
30 // http://server.com/x/shaarli --> /shaarli/
31 define ( 'WEB_PATH' , substr ( $_SERVER [ 'REQUEST_URI' ], 0 , 1 +
strrpos ( $_SERVER [ 'REQUEST_URI' ], '/' , 0 )));
33 // High execution time in case of problematic imports/exports.
34 ini_set ( 'max_input_time' , '60' );
36 // Try to set max upload file size and read
37 ini_set ( 'memory_limit' , '128M' );
38 ini_set ( 'post_max_size' , '16M' );
39 ini_set ( 'upload_max_filesize' , '16M' );
41 // See all error except warnings
42 error_reporting ( E_ALL^E_WARNING
);
43 // See all errors (for debugging only)
44 //error_reporting(-1);
48 require_once 'application/ApplicationUtils.php' ;
49 require_once 'application/Cache.php' ;
50 require_once 'application/CachedPage.php' ;
51 require_once 'application/config/ConfigManager.php' ;
52 require_once 'application/config/ConfigPlugin.php' ;
53 require_once 'application/FeedBuilder.php' ;
54 require_once 'application/FileUtils.php' ;
55 require_once 'application/HttpUtils.php' ;
56 require_once 'application/LinkDB.php' ;
57 require_once 'application/LinkFilter.php' ;
58 require_once 'application/LinkUtils.php' ;
59 require_once 'application/NetscapeBookmarkUtils.php' ;
60 require_once 'application/PageBuilder.php' ;
61 require_once 'application/TimeZone.php' ;
62 require_once 'application/Url.php' ;
63 require_once 'application/Utils.php' ;
64 require_once 'application/PluginManager.php' ;
65 require_once 'application/Router.php' ;
66 require_once 'application/Updater.php' ;
67 require_once 'inc/rain.tpl.class.php' ;
69 // Ensure the PHP version is supported
71 ApplicationUtils
:: checkPHPVersion ( '5.3' , PHP_VERSION
);
72 } catch ( Exception
$exc ) {
73 header ( 'Content-Type: text/plain; charset=utf-8' );
74 echo $exc- > getMessage ();
78 // Force cookie path (but do not change lifetime)
79 $cookie = session_get_cookie_params ();
81 if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ]) != '/' ) {
82 $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
84 // Set default cookie expiration and path.
85 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]);
86 // Set session parameters on server side.
87 // If the user does not access any page within this time, his/her session is considered expired.
88 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // in seconds.
89 // Use cookies to store session.
90 ini_set ( 'session.use_cookies' , 1 );
91 // Force cookies for session (phpsessionID forbidden in URL).
92 ini_set ( 'session.use_only_cookies' , 1 );
93 // Prevent PHP form using sessionID in URL if cookies are disabled.
94 ini_set ( 'session.use_trans_sid' , false );
96 session_name ( 'shaarli' );
97 // Start session if needed (Some server auto-start sessions).
98 if ( session_id () == '' ) {
102 // Regenerate session ID if invalid or not defined in cookie.
103 if ( isset ( $_COOKIE [ 'shaarli' ]) && ! is_session_id_valid ( $_COOKIE [ 'shaarli' ])) {
104 session_regenerate_id ( true );
105 $_COOKIE [ 'shaarli' ] = session_id ();
108 $conf = new ConfigManager ();
109 $conf- > setEmpty ( 'general.timezone' , date_default_timezone_get ());
110 $conf- > setEmpty ( 'general.title' , 'Shared links on ' . escape ( index_url ( $_SERVER )));
111 RainTPL
:: $tpl_dir = $conf- > get ( 'resource.raintpl_tpl' ); // template directory
112 RainTPL
:: $cache_dir = $conf- > get ( 'resource.raintpl_tmp' ); // cache directory
114 $pluginManager = new PluginManager ( $conf );
115 $pluginManager- > load ( $conf- > get ( 'general.enabled_plugins' ));
117 date_default_timezone_set ( $conf- > get ( 'general.timezone' , 'UTC' ));
119 ob_start (); // Output buffering for the page cache.
121 // In case stupid admin has left magic_quotes enabled in php.ini:
122 if ( get_magic_quotes_gpc ())
124 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
125 $_POST = array_map ( 'stripslashes_deep' , $_POST );
126 $_GET = array_map ( 'stripslashes_deep' , $_GET );
127 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
130 // Prevent caching on client side or proxy: (yes, it's ugly)
131 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
132 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
133 header ( "Cache-Control: post-check=0, pre-check=0" , false );
134 header ( "Pragma: no-cache" );
136 if (! is_file ( $conf- > getConfigFileExt ())) {
137 // Ensure Shaarli has proper access to its resources
138 $errors = ApplicationUtils
:: checkResourcePermissions ( $conf );
140 if ( $errors != array ()) {
141 $message = '<p>Insufficient permissions:</p><ul>' ;
143 foreach ( $errors as $error ) {
144 $message .= '<li>' . $error . '</li>' ;
148 header ( 'Content-Type: text/html; charset=utf-8' );
153 // Display the installation form if no existing config is found
157 // a token depending of deployment salt, user password, and the current ip
158 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $conf- > get ( 'credentials.hash' ) . $_SERVER [ 'REMOTE_ADDR' ] . $conf- > get ( 'credentials.salt' )));
160 // Sniff browser language and set date format accordingly.
161 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) {
162 autoLocale ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ]);
164 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
167 * Checking session state (i.e. is the user still logged in)
169 * @param ConfigManager $conf The configuration manager.
171 * @return bool: true if the user is logged in, false otherwise.
173 function setup_login_state ( $conf )
175 if ( $conf- > get ( 'security.open_shaarli' )) {
178 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
179 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
180 if (! $conf- > exists ( 'credentials.login' )) {
181 $userIsLoggedIn = false ; // Shaarli is not configured yet.
182 $loginFailure = true ;
184 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
185 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
188 fillSessionInfo ( $conf );
189 $userIsLoggedIn = true ;
191 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
192 if ( empty ( $_SESSION [ 'uid' ])
193 || ( $conf- > get ( 'security.session_protection_disabled' ) == false && $_SESSION [ 'ip' ] != allIPs ())
194 || time () >= $_SESSION [ 'expires_on' ])
197 $userIsLoggedIn = false ;
198 $loginFailure = true ;
200 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
201 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
204 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
206 if (! $loginFailure ) {
207 $userIsLoggedIn = true ;
210 return $userIsLoggedIn ;
212 $userIsLoggedIn = setup_login_state ( $conf );
215 * PubSubHubbub protocol support (if enabled) [UNTESTED]
216 * (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
218 * @param ConfigManager $conf Configuration Manager instance.
220 function pubsubhub ( $conf )
222 $pshUrl = $conf- > get ( 'config.PUBSUBHUB_URL' );
225 include_once './publisher.php' ;
226 $p = new Publisher ( $pshUrl );
228 index_url ( $_SERVER ). '?do=atom' ,
229 index_url ( $_SERVER ). '?do=rss'
231 $p- > publish_update ( $topic_url );
235 // ------------------------------------------------------------------------------------------
236 // Session management
238 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
241 $ip = $_SERVER [ 'REMOTE_ADDR' ];
242 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
243 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
244 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
251 * @param ConfigManager $conf Configuration Manager instance.
253 function fillSessionInfo ( $conf )
255 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
256 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
257 $_SESSION [ 'username' ]= $conf- > get ( 'credentials.login' );
258 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
262 * Check that user/password is correct.
264 * @param string $login Username
265 * @param string $password User password
266 * @param ConfigManager $conf Configuration Manager instance.
268 * @return bool: authentication successful or not.
270 function check_auth ( $login , $password , $conf )
272 $hash = sha1 ( $password . $login . $conf- > get ( 'credentials.salt' ));
273 if ( $login == $conf- > get ( 'credentials.login' ) && $hash == $conf- > get ( 'credentials.hash' ))
274 { // Login/password is correct.
275 fillSessionInfo ( $conf );
276 logm ( $conf- > get ( 'resource.log' ), $_SERVER [ 'REMOTE_ADDR' ], 'Login successful' );
279 logm ( $conf- > get ( 'resource.log' ), $_SERVER [ 'REMOTE_ADDR' ], 'Login failed for user ' . $login );
283 // Returns true if the user is logged in.
284 function isLoggedIn ()
286 global $userIsLoggedIn ;
287 return $userIsLoggedIn ;
292 if ( isset ( $_SESSION )) {
293 unset ( $_SESSION [ 'uid' ]);
294 unset ( $_SESSION [ 'ip' ]);
295 unset ( $_SESSION [ 'username' ]);
296 unset ( $_SESSION [ 'privateonly' ]);
298 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
302 // ------------------------------------------------------------------------------------------
303 // Brute force protection system
304 // Several consecutive failed logins will ban the IP address for 30 minutes.
305 if (! is_file ( $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' ))) {
308 $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' ),
309 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( array ( 'FAILURES' => array (), 'BANS' => array ()), true ). "; \n ?>"
312 include $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' );
314 * Signal a failed login. Will ban the IP if too many failures:
316 * @param ConfigManager $conf Configuration Manager instance.
318 function ban_loginFailed ( $conf )
320 $ip = $_SERVER [ 'REMOTE_ADDR' ];
321 $gb = $GLOBALS [ 'IPBANS' ];
322 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
323 $gb [ 'FAILURES' ][ $ip ] ++
;
324 if ( $gb [ 'FAILURES' ][ $ip ] > ( $conf- > get ( 'security.ban_after' ) - 1 ))
326 $gb [ 'BANS' ][ $ip ] = time () +
$conf- > get ( 'security.ban_after' , 1800 );
327 logm ( $conf- > get ( 'resource.log' ), $_SERVER [ 'REMOTE_ADDR' ], 'IP address banned from login' );
329 $GLOBALS [ 'IPBANS' ] = $gb ;
331 $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' ),
332 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
337 * Signals a successful login. Resets failed login counter.
339 * @param ConfigManager $conf Configuration Manager instance.
341 function ban_loginOk ( $conf )
343 $ip = $_SERVER [ 'REMOTE_ADDR' ];
344 $gb = $GLOBALS [ 'IPBANS' ];
345 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
346 $GLOBALS [ 'IPBANS' ] = $gb ;
348 $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' ),
349 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
354 * Checks if the user CAN login. If 'true', the user can try to login.
356 * @param ConfigManager $conf Configuration Manager instance.
358 * @return bool: true if the user is allowed to login.
360 function ban_canLogin ( $conf )
362 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
363 if ( isset ( $gb [ 'BANS' ][ $ip ]))
365 // User is banned. Check if the ban has expired:
366 if ( $gb [ 'BANS' ][ $ip ]<= time ())
367 { // Ban expired, user can try to login again.
368 logm ( $conf- > get ( 'resource.log' ), $_SERVER [ 'REMOTE_ADDR' ], 'Ban lifted.' );
369 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
371 $conf- > get ( 'resource.ban_file' , 'data/ipbans.php' ),
372 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
374 return true ; // Ban has expired, user can login.
376 return false ; // User is banned.
378 return true ; // User is not banned.
381 // ------------------------------------------------------------------------------------------
382 // Process login form: Check if login/password is correct.
383 if ( isset ( $_POST [ 'login' ]))
385 if (! ban_canLogin ( $conf )) die ( 'I said: NO. You are banned for the moment. Go away.' );
386 if ( isset ( $_POST [ 'password' ])
387 && tokenOk ( $_POST [ 'token' ])
388 && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ], $conf ))
389 ) { // Login/password is OK.
391 // If user wants to keep the session cookie even after the browser closes:
392 if (! empty ( $_POST [ 'longlastingsession' ]))
394 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
395 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
396 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
398 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
399 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
400 // Note: Never forget the trailing slash on the cookie path!
401 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
403 else // Standard session expiration (=when browser closes)
405 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
406 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
407 session_regenerate_id ( true );
410 // Optional redirect after login:
411 if ( isset ( $_GET [ 'post' ])) {
412 $uri = '?post=' . urlencode ( $_GET [ 'post' ]);
413 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
414 if (! empty ( $_GET [ $param ])) {
415 $uri .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
418 header ( 'Location: ' . $uri );
422 if ( isset ( $_GET [ 'edit_link' ])) {
423 header ( 'Location: ?edit_link=' . escape ( $_GET [ 'edit_link' ]));
427 if ( isset ( $_POST [ 'returnurl' ])) {
428 // Prevent loops over login screen.
429 if ( strpos ( $_POST [ 'returnurl' ], 'do=login' ) === false ) {
430 header ( 'Location: ' . generateLocation ( $_POST [ 'returnurl' ], $_SERVER [ 'HTTP_HOST' ]));
434 header ( 'Location: ?' ); exit ;
438 ban_loginFailed ( $conf );
439 $redir = '&username=' . $_POST [ 'login' ];
440 if ( isset ( $_GET [ 'post' ])) {
441 $redir .= '&post=' . urlencode ( $_GET [ 'post' ]);
442 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
443 if (! empty ( $_GET [ $param ])) {
444 $redir .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
448 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
453 // ------------------------------------------------------------------------------------------
454 // Misc utility functions:
456 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
457 function return_bytes ( $val )
459 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
462 case 'g' : $val *= 1024 ;
463 case 'm' : $val *= 1024 ;
464 case 'k' : $val *= 1024 ;
469 // Try to determine max file size for uploads (POST).
470 // Returns an integer (in bytes)
471 function getMaxFileSize ()
473 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
474 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
475 // Return the smaller of two:
476 $maxsize = min ( $size1 , $size2 );
477 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
481 // ------------------------------------------------------------------------------------------
482 // Token management for XSRF protection
483 // Token should be used in any form which acts on data (create,update,delete,import...).
484 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
489 * @param ConfigManager $conf Configuration Manager instance.
491 * @return string token.
493 function getToken ( $conf )
495 $rnd = sha1 ( uniqid ( '' , true ) . '_' . mt_rand () . $conf- > get ( 'credentials.salt' )); // We generate a random string.
496 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
500 // Tells if a token is OK. Using this function will destroy the token.
502 function tokenOk ( $token )
504 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
506 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
507 return true ; // Token is OK.
509 return false ; // Wrong token, or already used.
513 * Daily RSS feed: 1 RSS entry per day giving all the links on that day.
514 * Gives the last 7 days (which have links).
515 * This RSS feed cannot be filtered.
517 * @param ConfigManager $conf Configuration Manager instance.
519 function showDailyRSS ( $conf ) {
521 $query = $_SERVER [ 'QUERY_STRING' ];
522 $cache = new CachedPage (
523 $conf- > get ( 'config.PAGE_CACHE' ),
525 startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ()
527 $cached = $cache- > cachedVersion ();
528 if (! empty ( $cached )) {
533 // If cached was not found (or not usable), then read the database and build the response:
534 // Read links from database (and filter private links if used it not logged in).
535 $LINKSDB = new LinkDB (
536 $conf- > get ( 'resource.datastore' ),
538 $conf- > get ( 'privacy.hide_public_links' ),
539 $conf- > get ( 'redirector.url' ),
540 $conf- > get ( 'redirector.encode_url' )
543 /* Some Shaarlies may have very few links, so we need to look
544 back in time (rsort()) until we have enough days ($nb_of_days).
546 $linkdates = array ();
547 foreach ( $LINKSDB as $linkdate => $value ) {
548 $linkdates [] = $linkdate ;
551 $nb_of_days = 7 ; // We take 7 days.
552 $today = date ( 'Ymd' );
555 foreach ( $linkdates as $linkdate ) {
556 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
557 if ( strcmp ( $day , $today ) < 0 ) {
558 if ( empty ( $days [ $day ])) {
559 $days [ $day ] = array ();
561 $days [ $day ][] = $linkdate ;
564 if ( count ( $days ) > $nb_of_days ) {
565 break ; // Have we collected enough days?
569 // Build the RSS feed.
570 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
571 $pageaddr = escape ( index_url ( $_SERVER ));
572 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
574 echo '<title>Daily - ' . $conf- > get ( 'general.title' ) . '</title>' ;
575 echo '<link>' . $pageaddr . '</link>' ;
576 echo '<description>Daily shared links</description>' ;
577 echo '<language>en-en</language>' ;
578 echo '<copyright>' . $pageaddr . '</copyright>' . PHP_EOL
;
581 foreach ( $days as $day => $linkdates ) {
582 $dayDate = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $day . '_000000' );
583 $absurl = escape ( index_url ( $_SERVER ). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
585 // Build the HTML body of this RSS entry.
590 // We pre-format some fields for proper output.
591 foreach ( $linkdates as $linkdate ) {
592 $l = $LINKSDB [ $linkdate ];
593 $l [ 'formatedDescription' ] = format_description ( $l [ 'description' ], $conf- > get ( 'redirector.url' ));
594 $l [ 'thumbnail' ] = thumbnail ( $conf , $l [ 'url' ]);
595 $l_date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $l [ 'linkdate' ]);
596 $l [ 'timestamp' ] = $l_date- > getTimestamp ();
597 if ( startsWith ( $l [ 'url' ], '?' )) {
598 $l [ 'url' ] = index_url ( $_SERVER ) . $l [ 'url' ]; // make permalink URL absolute
600 $links [ $linkdate ] = $l ;
603 // Then build the HTML for this day:
605 $tpl- > assign ( 'title' , $conf- > get ( 'general.title' ));
606 $tpl- > assign ( 'daydate' , $dayDate- > getTimestamp ());
607 $tpl- > assign ( 'absurl' , $absurl );
608 $tpl- > assign ( 'links' , $links );
609 $tpl- > assign ( 'rssdate' , escape ( $dayDate- > format ( DateTime
:: RSS
)));
610 $tpl- > assign ( 'hide_timestamps' , $conf- > get ( 'privacy.hide_timestamps' , false ));
611 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
613 echo $html . PHP_EOL
;
615 echo '</channel></rss><!-- Cached version of ' . escape ( page_url ( $_SERVER )) . ' -->' ;
617 $cache- > cache ( ob_get_contents ());
623 * Show the 'Daily' page.
625 * @param PageBuilder $pageBuilder Template engine wrapper.
626 * @param LinkDB $LINKSDB LinkDB instance.
627 * @param ConfigManager $conf Configuration Manager instance.
628 * @param PluginManager $pluginManager Plugin Manager instane.
630 function showDaily ( $pageBuilder , $LINKSDB , $conf , $pluginManager )
632 $day = date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
633 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
635 $days = $LINKSDB- > days ();
636 $i = array_search ( $day , $days );
637 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
642 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
643 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
647 $linksToDisplay = $LINKSDB- > filterDay ( $day );
648 } catch ( Exception
$exc ) {
650 $linksToDisplay = array ();
653 // We pre-format some fields for proper output.
654 foreach ( $linksToDisplay as $key => $link )
657 $taglist = explode ( ' ' , $link [ 'tags' ]);
658 uasort ( $taglist , 'strcasecmp' );
659 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
660 $linksToDisplay [ $key ][ 'formatedDescription' ] = format_description ( $link [ 'description' ], $conf- > get ( 'redirector.url' ));
661 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $conf , $link [ 'url' ]);
662 $date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $link [ 'linkdate' ]);
663 $linksToDisplay [ $key ][ 'timestamp' ] = $date- > getTimestamp ();
666 /* We need to spread the articles on 3 columns.
667 I did not want to use a JavaScript lib like http://masonry.desandro.com/
668 so I manually spread entries with a simple method: I roughly evaluate the
669 height of a div according to title and description length.
671 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
672 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
673 foreach ( $linksToDisplay as $key => $link )
675 // Roughly estimate length of entry (by counting characters)
676 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
677 // Description: 836 characters gives roughly 342 pixel height.
678 // This is not perfect, but it's usually OK.
679 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
680 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
681 // Then put in column which is the less filled:
682 $smallest = min ( $fill ); // find smallest value in array.
683 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
684 array_push ( $columns [ $index ], $link ); // Put entry in this column.
685 $fill [ $index ] +
= $length ;
688 $dayDate = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $day . '_000000' );
690 'linksToDisplay' => $linksToDisplay ,
692 'day' => $dayDate- > getTimestamp (),
693 'previousday' => $previousday ,
694 'nextday' => $nextday ,
697 $pluginManager- > executeHooks ( 'render_daily' , $data , array ( 'loggedin' => isLoggedIn ()));
699 foreach ( $data as $key => $value ) {
700 $pageBuilder- > assign ( $key , $value );
703 $pageBuilder- > renderPage ( 'daily' );
708 * Renders the linklist
710 * @param pageBuilder $PAGE pageBuilder instance.
711 * @param LinkDB $LINKSDB LinkDB instance.
712 * @param ConfigManager $conf Configuration Manager instance.
713 * @param PluginManager $pluginManager Plugin Manager instance.
715 function showLinkList ( $PAGE , $LINKSDB , $conf , $pluginManager ) {
716 buildLinkList ( $PAGE , $LINKSDB , $conf , $pluginManager ); // Compute list of links to display
717 $PAGE- > renderPage ( 'linklist' );
721 * Render HTML page (according to URL parameters and user rights)
723 * @param ConfigManager $conf Configuration Manager instance.
724 * @param PluginManager $pluginManager Plugin Manager instance,
726 function renderPage ( $conf , $pluginManager )
728 $LINKSDB = new LinkDB (
729 $conf- > get ( 'resource.datastore' ),
731 $conf- > get ( 'privacy.hide_public_links' ),
732 $conf- > get ( 'redirector.url' ),
733 $conf- > get ( 'redirector.encode_url' )
736 $updater = new Updater (
737 read_updates_file ( $conf- > get ( 'resource.updates' )),
743 $newUpdates = $updater- > update ();
744 if (! empty ( $newUpdates )) {
746 $conf- > get ( 'resource.updates' ),
747 $updater- > getDoneUpdates ()
751 catch ( Exception
$e ) {
752 die ( $e- > getMessage ());
755 $PAGE = new PageBuilder ( $conf );
756 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
757 $PAGE- > assign ( 'privateLinkcount' , count_private ( $LINKSDB ));
759 // Determine which page will be rendered.
760 $query = ( isset ( $_SERVER [ 'QUERY_STRING' ])) ? $_SERVER [ 'QUERY_STRING' ] : '' ;
761 $targetPage = Router
:: findPage ( $query , $_GET , isLoggedIn ());
763 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
764 // Then assign generated data to RainTPL.
765 $common_hooks = array (
771 foreach ( $common_hooks as $name ) {
772 $plugin_data = array ();
773 $pluginManager- > executeHooks ( 'render_' . $name , $plugin_data ,
775 'target' => $targetPage ,
776 'loggedin' => isLoggedIn ()
779 $PAGE- > assign ( 'plugins_' . $name , $plugin_data );
782 // -------- Display login form.
783 if ( $targetPage == Router
:: $PAGE_LOGIN )
785 if ( $conf- > get ( 'security.open_shaarli' )) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
786 $token = '' ; if ( ban_canLogin ( $conf )) $token = getToken ( $conf ); // Do not waste token generation if not useful.
787 $PAGE- > assign ( 'token' , $token );
788 if ( isset ( $_GET [ 'username' ])) {
789 $PAGE- > assign ( 'username' , escape ( $_GET [ 'username' ]));
791 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
792 $PAGE- > renderPage ( 'loginform' );
795 // -------- User wants to logout.
796 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=logout' ))
798 invalidateCaches ( $conf- > get ( 'resource.page_cache' ));
800 header ( 'Location: ?' );
804 // -------- Picture wall
805 if ( $targetPage == Router
:: $PAGE_PICWALL )
807 // Optionally filter the results:
808 $links = $LINKSDB- > filterSearch ( $_GET );
809 $linksToDisplay = array ();
811 // Get only links which have a thumbnail.
812 foreach ( $links as $link )
814 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
815 $thumb = lazyThumbnail ( $conf , $link [ 'url' ], $permalink );
816 if ( $thumb != '' ) // Only output links which have a thumbnail.
818 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
819 $linksToDisplay []= $link ; // Add to array.
824 'linksToDisplay' => $linksToDisplay ,
826 $pluginManager- > executeHooks ( 'render_picwall' , $data , array ( 'loggedin' => isLoggedIn ()));
828 foreach ( $data as $key => $value ) {
829 $PAGE- > assign ( $key , $value );
832 $PAGE- > renderPage ( 'picwall' );
836 // -------- Tag cloud
837 if ( $targetPage == Router
:: $PAGE_TAGCLOUD )
839 $tags = $LINKSDB- > allTags ();
841 // We sort tags alphabetically, then choose a font size according to count.
842 // First, find max value.
844 foreach ( $tags as $value ) {
845 $maxcount = max ( $maxcount , $value );
848 // Sort tags alphabetically: case insensitive, support locale if avalaible.
849 uksort ( $tags , function ( $a , $b ) {
850 // Collator is part of PHP intl.
851 if ( class_exists ( 'Collator' )) {
852 $c = new Collator ( setlocale ( LC_COLLATE
, 0 ));
853 if (! intl_is_failure ( intl_get_error_code ())) {
854 return $c- > compare ( $a , $b );
857 return strcasecmp ( $a , $b );
861 foreach ( $tags as $key => $value ) {
862 // Tag font size scaling:
863 // default 15 and 30 logarithm bases affect scaling,
864 // 22 and 6 are arbitrary font sizes for max and min sizes.
865 $size = log ( $value , 15 ) / log ( $maxcount , 30 ) * 2.2 +
0.8 ;
866 $tagList [ $key ] = array (
868 'size' => number_format ( $size , 2 , '.' , '' ),
875 $pluginManager- > executeHooks ( 'render_tagcloud' , $data , array ( 'loggedin' => isLoggedIn ()));
877 foreach ( $data as $key => $value ) {
878 $PAGE- > assign ( $key , $value );
881 $PAGE- > renderPage ( 'tagcloud' );
886 if ( $targetPage == Router
:: $PAGE_DAILY ) {
887 showDaily ( $PAGE , $LINKSDB , $conf , $pluginManager );
890 // ATOM and RSS feed.
891 if ( $targetPage == Router
:: $PAGE_FEED_ATOM || $targetPage == Router
:: $PAGE_FEED_RSS ) {
892 $feedType = $targetPage == Router
:: $PAGE_FEED_RSS ? FeedBuilder
:: $FEED_RSS : FeedBuilder
:: $FEED_ATOM ;
893 header ( 'Content-Type: application/' . $feedType . '+xml; charset=utf-8' );
896 $query = $_SERVER [ 'QUERY_STRING' ];
897 $cache = new CachedPage (
898 $conf- > get ( 'resource.page_cache' ),
900 startsWith ( $query , 'do=' . $targetPage ) && ! isLoggedIn ()
902 $cached = $cache- > cachedVersion ();
903 if (! empty ( $cached )) {
909 $feedGenerator = new FeedBuilder ( $LINKSDB , $feedType , $_SERVER , $_GET , isLoggedIn ());
910 $feedGenerator- > setLocale ( strtolower ( setlocale ( LC_COLLATE
, 0 )));
911 $feedGenerator- > setHideDates ( $conf- > get ( 'privacy.hide_timestamps' ) && ! isLoggedIn ());
912 $feedGenerator- > setUsePermalinks ( isset ( $_GET [ 'permalinks' ]) || ! $conf- > get ( 'feed.rss_permalinks' ));
913 $pshUrl = $conf- > get ( 'config.PUBSUBHUB_URL' );
914 if (! empty ( $pshUrl )) {
915 $feedGenerator- > setPubsubhubUrl ( $pshUrl );
917 $data = $feedGenerator- > buildData ();
919 // Process plugin hook.
920 $pluginManager- > executeHooks ( 'render_feed' , $data , array (
921 'loggedin' => isLoggedIn (),
922 'target' => $targetPage ,
925 // Render the template.
926 $PAGE- > assignAll ( $data );
927 $PAGE- > renderPage ( 'feed.' . $feedType );
928 $cache- > cache ( ob_get_contents ());
933 // Display openseach plugin (XML)
934 if ( $targetPage == Router
:: $PAGE_OPENSEARCH ) {
935 header ( 'Content-Type: application/xml; charset=utf-8' );
936 $PAGE- > assign ( 'serverurl' , index_url ( $_SERVER ));
937 $PAGE- > renderPage ( 'opensearch' );
941 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
942 if ( isset ( $_GET [ 'addtag' ]))
944 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
945 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
946 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
948 // Prevent redirection loop
949 if ( isset ( $params [ 'addtag' ])) {
950 unset ( $params [ 'addtag' ]);
953 // Check if this tag is already in the search query and ignore it if it is.
954 // Each tag is always separated by a space
955 if ( isset ( $params [ 'searchtags' ])) {
956 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
958 $current_tags = array ();
961 foreach ( $current_tags as $value ) {
962 if ( $value === $_GET [ 'addtag' ]) {
967 // Append the tag if necessary
968 if ( empty ( $params [ 'searchtags' ])) {
969 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
972 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
975 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
976 header ( 'Location: ?' . http_build_query ( $params ));
980 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
981 if ( isset ( $_GET [ 'removetag' ])) {
982 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
983 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) {
984 header ( 'Location: ?' );
988 // In case browser does not send HTTP_REFERER
989 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
991 // Prevent redirection loop
992 if ( isset ( $params [ 'removetag' ])) {
993 unset ( $params [ 'removetag' ]);
996 if ( isset ( $params [ 'searchtags' ])) {
997 $tags = explode ( ' ' , $params [ 'searchtags' ]);
998 // Remove value from array $tags.
999 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ]));
1000 $params [ 'searchtags' ] = implode ( ' ' , $tags );
1002 if ( empty ( $params [ 'searchtags' ])) {
1003 unset ( $params [ 'searchtags' ]);
1006 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1008 header ( 'Location: ?' . http_build_query ( $params ));
1012 // -------- User wants to change the number of links per page (linksperpage=...)
1013 if ( isset ( $_GET [ 'linksperpage' ])) {
1014 if ( is_numeric ( $_GET [ 'linksperpage' ])) {
1015 $_SESSION [ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET [ 'linksperpage' ]));
1018 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'linksperpage' )));
1022 // -------- User wants to see only private links (toggle)
1023 if ( isset ( $_GET [ 'privateonly' ])) {
1024 if ( empty ( $_SESSION [ 'privateonly' ])) {
1025 $_SESSION [ 'privateonly' ] = 1 ; // See only private links
1027 unset ( $_SESSION [ 'privateonly' ]); // See all links
1030 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'privateonly' )));
1034 // -------- Handle other actions allowed for non-logged in users:
1037 // User tries to post new link but is not logged in:
1038 // Show login screen, then redirect to ?post=...
1039 if ( isset ( $_GET [ 'post' ]))
1041 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.
1045 showLinkList ( $PAGE , $LINKSDB , $conf , $pluginManager );
1046 if ( isset ( $_GET [ 'edit_link' ])) {
1047 header ( 'Location: ?do=login&edit_link=' . escape ( $_GET [ 'edit_link' ]));
1051 exit ; // Never remove this one! All operations below are reserved for logged in user.
1054 // -------- All other functions are reserved for the registered user:
1056 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1057 if ( $targetPage == Router
:: $PAGE_TOOLS )
1060 'pageabsaddr' => index_url ( $_SERVER ),
1062 $pluginManager- > executeHooks ( 'render_tools' , $data );
1064 foreach ( $data as $key => $value ) {
1065 $PAGE- > assign ( $key , $value );
1068 $PAGE- > renderPage ( 'tools' );
1072 // -------- User wants to change his/her password.
1073 if ( $targetPage == Router
:: $PAGE_CHANGEPASSWORD )
1075 if ( $conf- > get ( 'security.open_shaarli' )) {
1076 die ( 'You are not supposed to change a password on an Open Shaarli.' );
1079 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1081 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1083 // Make sure old password is correct.
1084 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $conf- > get ( 'credentials.login' ). $conf- > get ( 'credentials.salt' ));
1085 if ( $oldhash != $conf- > get ( 'credentials.hash' )) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1086 // Save new password
1087 // Salt renders rainbow-tables attacks useless.
1088 $conf- > set ( 'credentials.salt' , sha1 ( uniqid ( '' , true ) . '_' . mt_rand ()));
1089 $conf- > set ( 'credentials.hash' , sha1 ( $_POST [ 'setpassword' ] . $conf- > get ( 'credentials.login' ) . $conf- > get ( 'credentials.salt' )));
1091 $conf- > write ( isLoggedIn ());
1093 catch ( Exception
$e ) {
1095 'ERROR while writing config file after changing password.' . PHP_EOL
.
1099 // TODO: do not handle exceptions/errors in JS.
1100 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1103 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1106 else // show the change password form.
1108 $PAGE- > assign ( 'token' , getToken ( $conf ));
1109 $PAGE- > renderPage ( 'changepassword' );
1114 // -------- User wants to change configuration
1115 if ( $targetPage == Router
:: $PAGE_CONFIGURE )
1117 if (! empty ( $_POST [ 'title' ]) )
1119 if (! tokenOk ( $_POST [ 'token' ])) {
1120 die ( 'Wrong token.' ); // Go away!
1123 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])
1124 && isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])
1126 $tz = $_POST [ 'continent' ] . '/' . $_POST [ 'city' ];
1128 $conf- > set ( 'general.timezone' , $tz );
1129 $conf- > set ( 'general.title' , escape ( $_POST [ 'title' ]));
1130 $conf- > set ( 'general.header_link' , escape ( $_POST [ 'titleLink' ]));
1131 $conf- > set ( 'redirector.url' , escape ( $_POST [ 'redirector' ]));
1132 $conf- > set ( 'security.session_protection_disabled' , ! empty ( $_POST [ 'disablesessionprotection' ]));
1133 $conf- > set ( 'privacy.default_private_links' , ! empty ( $_POST [ 'privateLinkByDefault' ]));
1134 $conf- > set ( 'feed.rss_permalinks' , ! empty ( $_POST [ 'enableRssPermalinks' ]));
1135 $conf- > set ( 'updates.check_updates' , ! empty ( $_POST [ 'updateCheck' ]));
1136 $conf- > set ( 'privacy.hide_public_links' , ! empty ( $_POST [ 'hidePublicLinks' ]));
1138 $conf- > write ( isLoggedIn ());
1140 catch ( Exception
$e ) {
1142 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1146 // TODO: do not handle exceptions/errors in JS.
1147 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=configure \' ;</script>' ;
1150 echo '<script>alert("Configuration was saved.");document.location= \' ?do=configure \' ;</script>' ;
1153 else // Show the configuration form.
1155 $PAGE- > assign ( 'token' , getToken ( $conf ));
1156 $PAGE- > assign ( 'title' , $conf- > get ( 'general.title' ));
1157 $PAGE- > assign ( 'redirector' , $conf- > get ( 'redirector.url' ));
1158 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ( $conf- > get ( 'general.timezone' ));
1159 $PAGE- > assign ( 'timezone_form' , $timezone_form );
1160 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1161 $PAGE- > assign ( 'private_links_default' , $conf- > get ( 'privacy.default_private_links' , false ));
1162 $PAGE- > assign ( 'session_protection_disabled' , $conf- > get ( 'security.session_protection_disabled' , false ));
1163 $PAGE- > assign ( 'enable_rss_permalinks' , $conf- > get ( 'feed.rss_permalinks' , false ));
1164 $PAGE- > assign ( 'enable_update_check' , $conf- > get ( 'updates.check_updates' , true ));
1165 $PAGE- > assign ( 'hide_public_links' , $conf- > get ( 'privacy.hide_public_links' , false ));
1166 $PAGE- > renderPage ( 'configure' );
1171 // -------- User wants to rename a tag or delete it
1172 if ( $targetPage == Router
:: $PAGE_CHANGETAG )
1174 if ( empty ( $_POST [ 'fromtag' ]) || ( empty ( $_POST [ 'totag' ]) && isset ( $_POST [ 'renametag' ]))) {
1175 $PAGE- > assign ( 'token' , getToken ( $conf ));
1176 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1177 $PAGE- > renderPage ( 'changetag' );
1181 if (! tokenOk ( $_POST [ 'token' ])) {
1182 die ( 'Wrong token.' );
1186 if ( isset ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ])) {
1187 $needle = trim ( $_POST [ 'fromtag' ]);
1188 // True for case-sensitive tag search.
1189 $linksToAlter = $LINKSDB- > filterSearch ( array ( 'searchtags' => $needle ), true );
1190 foreach ( $linksToAlter as $key => $value )
1192 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1193 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1194 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1195 $LINKSDB [ $key ]= $value ;
1197 $LINKSDB- > savedb ( $conf- > get ( 'resource.page_cache' ));
1198 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1203 if ( isset ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ])) {
1204 $needle = trim ( $_POST [ 'fromtag' ]);
1205 // True for case-sensitive tag search.
1206 $linksToAlter = $LINKSDB- > filterSearch ( array ( 'searchtags' => $needle ), true );
1207 foreach ( $linksToAlter as $key => $value )
1209 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1210 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1211 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1212 $LINKSDB [ $key ]= $value ;
1214 $LINKSDB- > savedb ( $conf- > get ( 'resource.page_cache' )); // Save to disk.
1215 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1220 // -------- User wants to add a link without using the bookmarklet: Show form.
1221 if ( $targetPage == Router
:: $PAGE_ADDLINK )
1223 $PAGE- > renderPage ( 'addlink' );
1227 // -------- User clicked the "Save" button when editing a link: Save link to database.
1228 if ( isset ( $_POST [ 'save_edit' ]))
1231 if (! tokenOk ( $_POST [ 'token' ])) {
1232 die ( 'Wrong token.' );
1234 // Remove multiple spaces.
1235 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ]));
1236 // Remove first '-' char in tags.
1237 $tags = preg_replace ( '/(^| )\-/' , ' $1' , $tags );
1238 // Remove duplicates.
1239 $tags = implode(' ', array_unique(explode(' ', $tags )));
1240 $linkdate = $_POST [' lf_linkdate
'];
1241 $url = trim( $_POST [' lf_url
']);
1242 if (! startsWith( $url , ' http
: ') && ! startsWith( $url , ' https
: ')
1243 && ! startsWith( $url , ' ftp
: ') && ! startsWith( $url , ' magnet
: ')
1244 && ! startsWith( $url , ' ? ') && ! startsWith( $url , ' javascript
: ')
1246 $url = ' http
: //' . $url;
1250 'title' => trim ( $_POST [ 'lf_title' ]),
1252 'description' => $_POST [ 'lf_description' ],
1253 'private' => ( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1254 'linkdate' => $linkdate ,
1255 'tags' => str_replace ( ',' , ' ' , $tags )
1257 // If title is empty, use the URL as title.
1258 if ( $link [ 'title' ] == '' ) {
1259 $link [ 'title' ] = $link [ 'url' ];
1262 $pluginManager- > executeHooks ( 'save_link' , $link );
1264 $LINKSDB [ $linkdate ] = $link ;
1265 $LINKSDB- > savedb ( $conf- > get ( 'resource.page_cache' ));
1268 // If we are called from the bookmarklet, we must close the popup:
1269 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) {
1270 echo '<script>self.close();</script>' ;
1274 $returnurl = ! empty ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' ;
1275 $location = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1276 // Scroll to the link which has been edited.
1277 $location .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]);
1278 // After saving the link, redirect to the page the user was on.
1279 header ( 'Location: ' . $location );
1283 // -------- User clicked the "Cancel" button when editing a link.
1284 if ( isset ( $_POST [ 'cancel_edit' ]))
1286 // If we are called from the bookmarklet, we must close the popup:
1287 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1288 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1289 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1290 $returnurl = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1291 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1295 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1296 if ( isset ( $_POST [ 'delete_link' ]))
1298 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1299 // We do not need to ask for confirmation:
1300 // - confirmation is handled by JavaScript
1301 // - we are protected from XSRF by the token.
1302 $linkdate = $_POST [ 'lf_linkdate' ];
1304 $pluginManager- > executeHooks ( 'delete_link' , $LINKSDB [ $linkdate ]);
1306 unset ( $LINKSDB [ $linkdate ]);
1307 $LINKSDB- > savedb ( 'resource.page_cache' ); // save to disk
1309 // If we are called from the bookmarklet, we must close the popup:
1310 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1311 // Pick where we're going to redirect
1312 // =============================================================
1313 // Basically, we can't redirect to where we were previously if it was a permalink
1314 // or an edit_link, because it would 404.
1316 // - / : nothing in $_GET, redirect to self
1317 // - /?page : redirect to self
1318 // - /?searchterm : redirect to self (there might be other links)
1319 // - /?searchtags : redirect to self
1320 // - /permalink : redirect to / (the link does not exist anymore)
1321 // - /?edit_link : redirect to / (the link does not exist anymore)
1322 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1323 // redirect is not satisfied, and only then redirect to /
1326 if ( count ( $_GET ) == 0
1327 || isset ( $_GET [ 'page' ])
1328 || isset ( $_GET [ 'searchterm' ])
1329 || isset ( $_GET [ 'searchtags' ])
1331 if ( isset ( $_POST [ 'returnurl' ])) {
1332 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1334 $location = generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'delete_link' ));
1338 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1342 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1343 if ( isset ( $_GET [ 'edit_link' ]))
1345 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1346 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1349 'link_is_new' => false ,
1350 'token' => getToken ( $conf ),
1351 'http_referer' => ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ),
1352 'tags' => $LINKSDB- > allTags (),
1354 $pluginManager- > executeHooks ( 'render_editlink' , $data );
1356 foreach ( $data as $key => $value ) {
1357 $PAGE- > assign ( $key , $value );
1360 $PAGE- > renderPage ( 'editlink' );
1364 // -------- User want to post a new link: Display link edit form.
1365 if ( isset ( $_GET [ 'post' ])) {
1366 $url = cleanup_url ( $_GET [ 'post' ]);
1368 $link_is_new = false ;
1369 // Check if URL is not already in database (in this case, we will edit the existing link)
1370 $link = $LINKSDB- > getLinkFromUrl ( $url );
1373 $link_is_new = true ;
1374 $linkdate = strval ( date ( 'Ymd_His' ));
1375 // Get title if it was provided in URL (by the bookmarklet).
1376 $title = empty ( $_GET [ 'title' ]) ? '' : escape ( $_GET [ 'title' ]);
1377 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1378 $description = empty ( $_GET [ 'description' ]) ? '' : escape ( $_GET [ 'description' ]);
1379 $tags = empty ( $_GET [ 'tags' ]) ? '' : escape ( $_GET [ 'tags' ]);
1380 $private = ! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ;
1381 // 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.)
1382 if ( empty ( $title ) && strpos ( get_url_scheme ( $url ), 'http' ) !== false ) {
1383 // Short timeout to keep the application responsive
1384 list ( $headers , $content ) = get_http_response ( $url , 4 );
1385 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
1386 // Retrieve charset.
1387 $charset = get_charset ( $headers , $content );
1389 $title = html_extract_title ( $content );
1390 // Re-encode title in utf-8 if necessary.
1391 if (! empty ( $title ) && strtolower ( $charset ) != 'utf-8' ) {
1392 $title = mb_convert_encoding ( $title , 'utf-8' , $charset );
1398 $url = '?' . smallHash ( $linkdate );
1401 $url = escape ( $url );
1402 $title = escape ( $title );
1405 'linkdate' => $linkdate ,
1408 'description' => $description ,
1410 'private' => $private
1416 'link_is_new' => $link_is_new ,
1417 'token' => getToken ( $conf ), // XSRF protection.
1418 'http_referer' => ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ),
1419 'source' => ( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ),
1420 'tags' => $LINKSDB- > allTags (),
1421 'default_private_links' => $conf- > get ( 'default_private_links' , false ),
1423 $pluginManager- > executeHooks ( 'render_editlink' , $data );
1425 foreach ( $data as $key => $value ) {
1426 $PAGE- > assign ( $key , $value );
1429 $PAGE- > renderPage ( 'editlink' );
1433 if ( $targetPage == Router
:: $PAGE_EXPORT ) {
1434 // Export links as a Netscape Bookmarks file
1436 if ( empty ( $_GET [ 'selection' ])) {
1437 $PAGE- > renderPage ( 'export' );
1441 // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1442 $selection = $_GET [ 'selection' ];
1443 if ( isset ( $_GET [ 'prepend_note_url' ])) {
1444 $prependNoteUrl = $_GET [ 'prepend_note_url' ];
1446 $prependNoteUrl = false ;
1452 NetscapeBookmarkUtils
:: filterAndFormat (
1459 } catch ( Exception
$exc ) {
1460 header ( 'Content-Type: text/plain; charset=utf-8' );
1461 echo $exc- > getMessage ();
1464 $now = new DateTime ();
1465 header ( 'Content-Type: text/html; charset=utf-8' );
1467 'Content-disposition: attachment; filename=bookmarks_'
1468 . $selection . '_' . $now- > format ( LinkDB
:: LINK_DATE_FORMAT
). '.html'
1470 $PAGE- > assign ( 'date' , $now- > format ( DateTime
:: RFC822
));
1471 $PAGE- > assign ( 'eol' , PHP_EOL
);
1472 $PAGE- > assign ( 'selection' , $selection );
1473 $PAGE- > renderPage ( 'export.bookmarks' );
1477 // -------- User is uploading a file for import
1478 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=upload' ))
1480 // If file is too big, some form field may be missing.
1481 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1483 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1484 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept (' . getMaxFileSize (). ' bytes). Please upload in smaller chunks.");document.location= \' ' . escape ( $returnurl ). ' \' ;</script>' ;
1487 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1488 importFile ( $LINKSDB );
1492 // -------- Show upload/import dialog:
1493 if ( $targetPage == Router
:: $PAGE_IMPORT )
1495 $PAGE- > assign ( 'token' , getToken ( $conf ));
1496 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1497 $PAGE- > renderPage ( 'import' );
1501 // Plugin administration page
1502 if ( $targetPage == Router
:: $PAGE_PLUGINSADMIN ) {
1503 $pluginMeta = $pluginManager- > getPluginsMeta ();
1505 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1506 $enabledPlugins = array_filter ( $pluginMeta , function ( $v ) { return $v
[ 'order' ] !== false ; });
1508 $enabledPlugins = load_plugin_parameter_values ( $enabledPlugins , $conf- > get ( 'plugins' , array ()));
1511 function ( $a , $b ) { return $a
[ 'order' ] - $b
[ 'order' ]; }
1513 $disabledPlugins = array_filter ( $pluginMeta , function ( $v ) { return $v
[ 'order' ] === false ; });
1515 $PAGE- > assign ( 'enabledPlugins' , $enabledPlugins );
1516 $PAGE- > assign ( 'disabledPlugins' , $disabledPlugins );
1517 $PAGE- > renderPage ( 'pluginsadmin' );
1521 // Plugin administration form action
1522 if ( $targetPage == Router
:: $PAGE_SAVE_PLUGINSADMIN ) {
1524 if ( isset ( $_POST [ 'parameters_form' ])) {
1525 unset ( $_POST [ 'parameters_form' ]);
1526 foreach ( $_POST as $param => $value ) {
1527 $conf- > set ( 'plugins.' . $param , escape ( $value ));
1531 $conf- > set ( 'general.enabled_plugins' , save_plugin_config ( $_POST ));
1533 $conf- > write ( isLoggedIn ());
1535 catch ( Exception
$e ) {
1537 'ERROR while saving plugin configuration:.' . PHP_EOL
.
1541 // TODO: do not handle exceptions/errors in JS.
1542 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=' . Router
:: $PAGE_PLUGINSADMIN . ' \' ;</script>' ;
1545 header ( 'Location: ?do=' . Router
:: $PAGE_PLUGINSADMIN );
1549 // -------- Otherwise, simply display search form and links:
1550 showLinkList ( $PAGE , $LINKSDB , $conf , $pluginManager );
1555 * Process the import file form.
1557 * @param LinkDB $LINKSDB Loaded LinkDB instance.
1558 * @param ConfigManager $conf Configuration Manager instance.
1560 function importFile ( $LINKSDB , $conf )
1562 if (! isLoggedIn ()) { die ( 'Not allowed.' ); }
1564 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1565 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1566 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1567 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1568 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1573 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1575 // Then import the bookmarks.
1576 if ( $type == 'netscape' )
1578 // This is a standard Netscape-style bookmark file.
1579 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1580 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1582 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1583 $d = explode ( '<DD>' , $html );
1584 if ( startsWith ( $d [ 0 ], '<A ' ))
1586 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1587 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1588 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1589 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1591 foreach ( $matches as $m )
1593 $attr = $m [ 1 ]; $value = $m [ 2 ];
1594 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1595 elseif ( $attr == 'ADD_DATE' )
1597 $raw_add_date = intval ( $value );
1598 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1600 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1601 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1603 if ( $link [ 'url' ]!= '' )
1605 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1606 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1608 { // Link not in database, let's import it...
1609 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1611 // Make sure date/time is not already used by another link.
1612 // (Some bookmark files have several different links with the same ADD_DATE)
1613 // We increment date by 1 second until we find a date which is not used in DB.
1614 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1615 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1616 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1617 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1620 else // Link already present in database.
1623 { // If overwrite is required, we import link data, except date/time.
1624 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1625 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1633 $LINKSDB- > savedb ( $conf- > get ( 'resource.page_cache' ));
1635 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1639 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1644 * Template for the list of links (<div id="linklist">)
1645 * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1647 * @param pageBuilder $PAGE pageBuilder instance.
1648 * @param LinkDB $LINKSDB LinkDB instance.
1649 * @param ConfigManager $conf Configuration Manager instance.
1650 * @param PluginManager $pluginManager Plugin Manager instance.
1652 function buildLinkList ( $PAGE , $LINKSDB , $conf , $pluginManager )
1654 // Used in templates
1655 $searchtags = ! empty ( $_GET [ 'searchtags' ]) ? escape ( $_GET [ 'searchtags' ]) : '' ;
1656 $searchterm = ! empty ( $_GET [ 'searchterm' ]) ? escape ( $_GET [ 'searchterm' ]) : '' ;
1659 if (! empty ( $_SERVER [ 'QUERY_STRING' ])
1660 && preg_match ( '/^[a-zA-Z0-9-_@] {6} ( $| &|#)/' , $_SERVER [ 'QUERY_STRING' ])) {
1662 $linksToDisplay = $LINKSDB- > filterHash ( $_SERVER [ 'QUERY_STRING' ]);
1663 } catch ( LinkNotFoundException
$e ) {
1664 $PAGE- > render404 ( $e- > getMessage ());
1668 // Filter links according search parameters.
1669 $privateonly = ! empty ( $_SESSION [ 'privateonly' ]);
1670 $linksToDisplay = $LINKSDB- > filterSearch ( $_GET , false , $privateonly );
1673 // ---- Handle paging.
1675 foreach ( $linksToDisplay as $key => $value ) {
1679 // If there is only a single link, we change on-the-fly the title of the page.
1680 if ( count ( $linksToDisplay ) == 1 ) {
1681 $conf- > set ( 'pagetitle' , $linksToDisplay [ $keys [ 0 ]][ 'title' ] . ' - ' . $conf- > get ( 'general.title' ));
1684 // Select articles according to paging.
1685 $pagecount = ceil ( count ( $keys ) / $_SESSION [ 'LINKS_PER_PAGE' ]);
1686 $pagecount = $pagecount == 0 ? 1 : $pagecount ;
1687 $page = empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]);
1688 $page = $page < 1 ? 1 : $page ;
1689 $page = $page > $pagecount ? $pagecount : $page ;
1691 $i = ( $page-1 ) * $_SESSION [ 'LINKS_PER_PAGE' ];
1692 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1693 $linkDisp = array ();
1694 while ( $i < $end && $i < count ( $keys ))
1696 $link = $linksToDisplay [ $keys [ $i ]];
1697 $link [ 'description' ] = format_description ( $link [ 'description' ], $conf- > get ( 'redirector.url' ));
1698 $classLi = ( $i %
2 ) != 0 ? '' : 'publicLinkHightLight' ;
1699 $link [ 'class' ] = $link [ 'private' ] == 0 ? $classLi : 'private' ;
1700 $date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $link [ 'linkdate' ]);
1701 $link [ 'timestamp' ] = $date- > getTimestamp ();
1702 $taglist = explode ( ' ' , $link [ 'tags' ]);
1703 uasort ( $taglist , 'strcasecmp' );
1704 $link [ 'taglist' ] = $taglist ;
1705 $link [ 'shorturl' ] = smallHash ( $link [ 'linkdate' ]);
1706 // Check for both signs of a note: starting with ? and 7 chars long.
1707 if ( $link [ 'url' ][ 0 ] === '?' &&
1708 strlen ( $link [ 'url' ]) === 7 ) {
1709 $link [ 'url' ] = index_url ( $_SERVER ) . $link [ 'url' ];
1712 $linkDisp [ $keys [ $i ]] = $link ;
1716 // Compute paging navigation
1717 $searchtagsUrl = empty ( $searchtags ) ? '' : '&searchtags=' . urlencode ( $searchtags );
1718 $searchtermUrl = empty ( $searchterm ) ? '' : '&searchterm=' . urlencode ( $searchterm );
1719 $previous_page_url = '' ;
1720 if ( $i != count ( $keys )) {
1721 $previous_page_url = '?page=' . ( $page +
1 ) . $searchtermUrl . $searchtagsUrl ;
1725 $next_page_url = '?page=' . ( $page-1 ) . $searchtermUrl . $searchtagsUrl ;
1728 $token = isLoggedIn () ? getToken ( $conf ) : '' ;
1730 // Fill all template fields.
1732 'previous_page_url' => $previous_page_url ,
1733 'next_page_url' => $next_page_url ,
1734 'page_current' => $page ,
1735 'page_max' => $pagecount ,
1736 'result_count' => count ( $linksToDisplay ),
1737 'search_term' => $searchterm ,
1738 'search_tags' => $searchtags ,
1739 'redirector' => $conf- > get ( 'redirector.url' ), // Optional redirector URL.
1741 'links' => $linkDisp ,
1742 'tags' => $LINKSDB- > allTags (),
1744 // FIXME! temporary fix - see #399.
1745 if ( $conf- > exists ( 'pagetitle' ) && count ( $linkDisp ) == 1 ) {
1746 $data [ 'pagetitle' ] = $conf- > get ( 'pagetitle' );
1749 $pluginManager- > executeHooks ( 'render_linklist' , $data , array ( 'loggedin' => isLoggedIn ()));
1751 foreach ( $data as $key => $value ) {
1752 $PAGE- > assign ( $key , $value );
1759 * Compute the thumbnail for a link.
1761 * With a link to the original URL.
1762 * Understands various services (youtube.com...)
1763 * Input: $url = URL for which the thumbnail must be found.
1764 * $href = if provided, this URL will be followed instead of $url
1765 * Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1766 * Some of them may be missing.
1767 * Return an empty array if no thumbnail available.
1769 * @param ConfigManager $conf Configuration Manager instance.
1770 * @param string $url
1771 * @param string|bool $href
1775 function computeThumbnail ( $conf , $url , $href = false )
1777 if (! $conf- > get ( 'thumbnail.enable_thumbnails' )) return array ();
1778 if ( $href == false ) $href = $url ;
1780 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1781 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1782 // ^^^^^^^^^^^ ^^^^^^^^^^^
1783 $domain = parse_url ( $url , PHP_URL_HOST
);
1784 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1786 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1787 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1788 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1790 if ( $domain == 'youtu.be' ) // Youtube short links
1792 $path = parse_url ( $url , PHP_URL_PATH
);
1793 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1794 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1796 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1798 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1799 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1800 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1803 if ( $domain == 'imgur.com' )
1805 $path = parse_url ( $url , PHP_URL_PATH
);
1806 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1807 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1808 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1809 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1810 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1812 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1813 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1815 if ( $domain == 'i.imgur.com' )
1817 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1818 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1819 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1821 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1823 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1825 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1826 return array ( 'src' => $thumburl ,
1827 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1830 if ( endsWith ( $domain , '.imageshack.us' ))
1832 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1833 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1835 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1836 return array ( 'src' => $thumburl ,
1837 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1841 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1842 // So we deport the thumbnail generation in order not to slow down page generation
1843 // (and we also cache the thumbnail)
1845 if (! $conf- > get ( 'thumbnail.enable_localcache' )) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1847 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1848 || $domain == 'vimeo.com'
1849 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1850 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1853 if ( $domain == 'vimeo.com' )
1854 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1855 $path = parse_url ( $url , PHP_URL_PATH
);
1856 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1858 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1859 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1860 $path = parse_url ( $url , PHP_URL_PATH
);
1861 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1863 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1864 { // Make sure this TED URL points to a video (/talks/...)
1865 $path = parse_url ( $url , PHP_URL_PATH
);
1866 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1868 $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)
1869 return array ( 'src' => index_url ( $_SERVER ). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1870 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1873 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1874 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1875 // But using the extension will do.
1876 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1877 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1879 $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)
1880 return array ( 'src' => index_url ( $_SERVER ). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1881 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1883 return array (); // No thumbnail.
1888 // Returns the HTML code to display a thumbnail for a link
1889 // with a link to the original URL.
1890 // Understands various services (youtube.com...)
1891 // Input: $url = URL for which the thumbnail must be found.
1892 // $href = if provided, this URL will be followed instead of $url
1893 // Returns '' if no thumbnail available.
1894 function thumbnail ( $url , $href = false )
1898 $t = computeThumbnail ( $conf , $url , $href );
1899 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1901 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1902 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1903 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1904 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1905 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1910 // Returns the HTML code to display a thumbnail for a link
1911 // for the picture wall (using lazy image loading)
1912 // Understands various services (youtube.com...)
1913 // Input: $url = URL for which the thumbnail must be found.
1914 // $href = if provided, this URL will be followed instead of $url
1915 // Returns '' if no thumbnail available.
1916 function lazyThumbnail ( $conf , $url , $href = false )
1920 $t = computeThumbnail ( $conf , $url , $href );
1921 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1923 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
1926 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
1928 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1929 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1930 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1931 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1934 // No-JavaScript fallback.
1935 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
1936 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1937 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1938 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1939 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1940 $html .= '></noscript></a>' ;
1948 * This function should NEVER be called if the file data/config.php exists.
1950 * @param ConfigManager $conf Configuration Manager instance.
1952 function install ( $conf )
1954 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1955 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
1958 // This part makes sure sessions works correctly.
1959 // (Because on some hosts, session.save_path may not be set correctly,
1960 // or we may not have write access to it.)
1961 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
1962 { // Step 2: Check if data in session is correct.
1963 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
1964 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
1965 echo 'It currently points to ' . session_save_path (). '<br>' ;
1966 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>' ;
1967 echo '<br><a href="?">Click to try again.</a></pre>' ;
1970 if (! isset ( $_SESSION [ 'session_tested' ]))
1971 { // Step 1 : Try to store data in session and reload page.
1972 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
1973 header ( 'Location: ' . index_url ( $_SERVER ). '?test_session' ); // Redirect to check stored data.
1975 if ( isset ( $_GET [ 'test_session' ]))
1976 { // Step 3: Sessions are OK. Remove test parameter from URL.
1977 header ( 'Location: ' . index_url ( $_SERVER ));
1981 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
1984 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])
1985 && isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])
1987 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1989 $conf- > set ( 'general.timezone' , $tz );
1990 $login = $_POST [ 'setlogin' ];
1991 $conf- > set ( 'credentials.login' , $login );
1992 $salt = sha1 ( uniqid ( '' , true ) . '_' . mt_rand ());
1993 $conf- > set ( 'credentials.salt' , $salt );
1994 $conf- > set ( 'credentials.hash' , sha1 ( $_POST [ 'setpassword' ] . $login . $salt ));
1995 if (! empty ( $_POST [ 'title' ])) {
1996 $conf- > set ( 'general.title' , escape ( $_POST [ 'title' ]));
1998 $conf- > set ( 'general.title' , 'Shared links on ' . escape ( index_url ( $_SERVER )));
2000 $conf- > set ( 'updates.check_updates' , ! empty ( $_POST [ 'updateCheck' ]));
2002 // Everything is ok, let's create config file.
2003 $conf- > write ( isLoggedIn ());
2005 catch ( Exception
$e ) {
2007 'ERROR while writing config file after installation.' . PHP_EOL
.
2011 // TODO: do not handle exceptions/errors in JS.
2012 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2015 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2019 // Display config form:
2020 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ();
2021 $timezone_html = '' ;
2022 if ( $timezone_form != '' ) {
2023 $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2026 $PAGE = new PageBuilder ( $conf );
2027 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2028 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2029 $PAGE- > renderPage ( 'install' );
2034 * Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2035 * I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2036 * The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2037 * This function is called by passing the URL:
2038 * http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2039 * [URL] is the URL of the link (e.g. a flickr page)
2040 * [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2041 * The function below will fetch the image from the webservice and store it in the cache.
2043 * @param ConfigManager $conf Configuration Manager instance,
2045 function genThumbnail ( $conf )
2047 // Make sure the parameters in the URL were generated by us.
2048 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $conf- > get ( 'credentials.salt' ));
2049 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2051 $cacheDir = $conf- > get ( 'resource.thumbnails_cache' , 'cache' );
2052 // Let's see if we don't already have the image for this URL in the cache.
2053 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2054 if ( is_file ( $cacheDir . '/' . $thumbname ))
2055 { // We have the thumbnail, just serve it:
2056 header ( 'Content-Type: image/jpeg' );
2057 echo file_get_contents ( $cacheDir . '/' . $thumbname );
2060 // We may also serve a blank image (if service did not respond)
2061 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2062 if ( is_file ( $cacheDir . '/' . $blankname ))
2064 header ( 'Content-Type: image/gif' );
2065 echo file_get_contents ( $cacheDir . '/' . $blankname );
2069 // Otherwise, generate the thumbnail.
2070 $url = $_GET [ 'url' ];
2071 $domain = parse_url ( $url , PHP_URL_HOST
);
2073 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2075 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2076 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2078 // Is this a link to an image, or to a flickr page ?
2080 if ( endsWith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2081 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2082 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2083 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2085 else // This is a flickr page (html)
2087 // Get the flickr html page.
2088 list ( $headers , $content ) = get_http_response ( $url , 20 );
2089 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false )
2091 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2092 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $content , $matches );
2093 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2095 // In albums (and some other pages), the link rel="image_src" is not provided,
2096 // but flickr provides:
2097 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2100 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $content , $matches );
2101 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2107 { // Let's download the image.
2108 // Image is 240x120, so 10 seconds to download should be enough.
2109 list ( $headers , $content ) = get_http_response ( $imageurl , 10 );
2110 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2111 // Save image to cache.
2112 file_put_contents ( $cacheDir . '/' . $thumbname , $content );
2113 header ( 'Content-Type: image/jpeg' );
2120 elseif ( $domain == 'vimeo.com' )
2122 // This is more complex: we have to perform a HTTP request, then parse the result.
2123 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2124 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2125 list ( $headers , $content ) = get_http_response ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2126 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2127 $t = unserialize ( $content );
2128 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2129 // Then we download the image and serve it to our client.
2130 list ( $headers , $content ) = get_http_response ( $imageurl , 10 );
2131 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2132 // Save image to cache.
2133 file_put_contents ( $cacheDir . '/' . $thumbname , $content );
2134 header ( 'Content-Type: image/jpeg' );
2141 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2143 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2144 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2145 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2146 list ( $headers , $content ) = get_http_response ( $url , 5 );
2147 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2148 // Extract the link to the thumbnail
2149 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $content , $matches );
2150 if (! empty ( $matches [ 1 ]))
2151 { // Let's download the image.
2152 $imageurl = $matches [ 1 ];
2153 // No control on image size, so wait long enough
2154 list ( $headers , $content ) = get_http_response ( $imageurl , 20 );
2155 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2156 $filepath = $cacheDir . '/' . $thumbname ;
2157 file_put_contents ( $filepath , $content ); // Save image to cache.
2158 if ( resizeImage ( $filepath ))
2160 header ( 'Content-Type: image/jpeg' );
2161 echo file_get_contents ( $filepath );
2169 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2171 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2172 // http://xkcd.com/327/
2173 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2174 list ( $headers , $content ) = get_http_response ( $url , 5 );
2175 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2176 // Extract the link to the thumbnail
2177 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $content , $matches );
2178 if (! empty ( $matches [ 1 ]))
2179 { // Let's download the image.
2180 $imageurl = $matches [ 1 ];
2181 // No control on image size, so wait long enough
2182 list ( $headers , $content ) = get_http_response ( $imageurl , 20 );
2183 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2184 $filepath = $cacheDir . '/' . $thumbname ;
2185 // Save image to cache.
2186 file_put_contents ( $filepath , $content );
2187 if ( resizeImage ( $filepath ))
2189 header ( 'Content-Type: image/jpeg' );
2190 echo file_get_contents ( $filepath );
2200 // For all other domains, we try to download the image and make a thumbnail.
2201 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2202 list ( $headers , $content ) = get_http_response ( $url , 30 );
2203 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2204 $filepath = $cacheDir . '/' . $thumbname ;
2205 // Save image to cache.
2206 file_put_contents ( $filepath , $content );
2207 if ( resizeImage ( $filepath ))
2209 header ( 'Content-Type: image/jpeg' );
2210 echo file_get_contents ( $filepath );
2217 // Otherwise, return an empty image (8x8 transparent gif)
2218 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2219 // Also put something in cache so that this URL is not requested twice.
2220 file_put_contents ( $cacheDir . '/' . $blankname , $blankgif );
2221 header ( 'Content-Type: image/gif' );
2225 // Make a thumbnail of the image (to width: 120 pixels)
2226 // Returns true if success, false otherwise.
2227 function resizeImage ( $filepath )
2229 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2231 // Trick: some stupid people rename GIF as JPEG... or else.
2232 // So we really try to open each image type whatever the extension is.
2233 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2235 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2236 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2237 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2238 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2241 $ystart = 0 ; $yheight = $h ;
2242 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2243 $nw = 120 ; // Desired width
2244 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2246 $im2 = imagecreatetruecolor ( $nw , $nh );
2247 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2248 imageinterlace ( $im2 , true ); // For progressive JPEG.
2249 $tempname = $filepath . '_TEMP.jpg' ;
2250 imagejpeg ( $im2 , $tempname , 90 );
2254 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2258 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=genthumbnail' )) { genThumbnail ( $conf
); exit ; } // Thumbnail generation/cache does not need the link database.
2259 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=dailyrss' )) { showDailyRSS ( $conf
); exit ; }
2260 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) {
2261 $_SESSION [ 'LINKS_PER_PAGE' ] = $conf- > get ( 'general.links_per_page' , 20 );
2263 renderPage ( $conf , $pluginManager );