]>
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/FeedBuilder.php' ;
52 require_once 'application/FileUtils.php' ;
53 require_once 'application/HttpUtils.php' ;
54 require_once 'application/LinkDB.php' ;
55 require_once 'application/LinkFilter.php' ;
56 require_once 'application/LinkUtils.php' ;
57 require_once 'application/NetscapeBookmarkUtils.php' ;
58 require_once 'application/PageBuilder.php' ;
59 require_once 'application/TimeZone.php' ;
60 require_once 'application/Url.php' ;
61 require_once 'application/Utils.php' ;
62 require_once 'application/config/ConfigManager.php' ;
63 require_once 'application/config/ConfigPlugin.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 = ConfigManager
:: getInstance ();
110 RainTPL
:: $tpl_dir = $conf- > get ( 'config.RAINTPL_TPL' ); // template directory
111 RainTPL
:: $cache_dir = $conf- > get ( 'config.RAINTPL_TMP' ); // cache directory
113 $pluginManager = PluginManager
:: getInstance ();
114 $pluginManager- > load ( $conf- > get ( 'config.ENABLED_PLUGINS' ));
116 ob_start (); // Output buffering for the page cache.
118 // In case stupid admin has left magic_quotes enabled in php.ini:
119 if ( get_magic_quotes_gpc ())
121 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
122 $_POST = array_map ( 'stripslashes_deep' , $_POST );
123 $_GET = array_map ( 'stripslashes_deep' , $_GET );
124 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
127 // Prevent caching on client side or proxy: (yes, it's ugly)
128 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
129 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
130 header ( "Cache-Control: post-check=0, pre-check=0" , false );
131 header ( "Pragma: no-cache" );
133 // Handling of old config file which do not have the new parameters.
134 if (! $conf- > exists ( 'title' )) {
135 $conf- > set ( 'title' , 'Shared links on ' . escape ( index_url ( $_SERVER )));
137 if (! $conf- > exists ( 'timezone' )) {
138 $conf- > set ( 'timezone' , date_default_timezone_get ());
140 if (! $conf- > exists ( 'disablesessionprotection' )) {
141 $conf- > set ( 'disablesessionprotection' , false );
143 if (! $conf- > exists ( 'privateLinkByDefault' )) {
144 $conf- > set ( 'privateLinkByDefault' , false );
146 if (! $conf- > exists ( 'titleLink' )) {
147 $conf- > set ( 'titleLink' , '?' );
150 if (! is_file ( $conf- > getConfigFile ())) {
151 // Ensure Shaarli has proper access to its resources
152 $errors = ApplicationUtils
:: checkResourcePermissions ();
154 if ( $errors != array ()) {
155 $message = '<p>Insufficient permissions:</p><ul>' ;
157 foreach ( $errors as $error ) {
158 $message .= '<li>' . $error . '</li>' ;
162 header ( 'Content-Type: text/html; charset=utf-8' );
167 // Display the installation form if no existing config is found
171 // FIXME! Update these value with Updater and escpae it during the install/config save.
172 $conf- > set ( 'title' , escape ( $conf- > get ( 'title' )));
173 $conf- > set ( 'titleLink' , escape ( $conf- > get ( 'titleLink' )));
174 $conf- > set ( 'redirector' , escape ( $conf- > get ( 'redirector' )));
176 // a token depending of deployment salt, user password, and the current ip
177 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $conf- > get ( 'hash' ) . $_SERVER [ 'REMOTE_ADDR' ] . $conf- > get ( 'salt' )));
179 // Sniff browser language and set date format accordingly.
180 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) {
181 autoLocale ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ]);
183 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
185 //==================================================================================================
186 // Checking session state (i.e. is the user still logged in)
187 //==================================================================================================
189 function setup_login_state () {
190 $conf = ConfigManager
:: getInstance ();
192 if ( $conf- > get ( 'config.OPEN_SHAARLI' )) {
195 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
196 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
197 if (! $conf- > exists ( 'login' )) {
198 $userIsLoggedIn = false ; // Shaarli is not configured yet.
199 $loginFailure = true ;
201 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
202 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
206 $userIsLoggedIn = true ;
208 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
209 if ( empty ( $_SESSION [ 'uid' ])
210 || ( $conf- > get ( 'disablesessionprotection' ) == false && $_SESSION [ 'ip' ] != allIPs ())
211 || time () >= $_SESSION [ 'expires_on' ])
214 $userIsLoggedIn = false ;
215 $loginFailure = true ;
217 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
218 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
221 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
223 if (! $loginFailure ) {
224 $userIsLoggedIn = true ;
227 return $userIsLoggedIn ;
229 $userIsLoggedIn = setup_login_state ();
231 // ------------------------------------------------------------------------------------------
232 // PubSubHubbub protocol support (if enabled) [UNTESTED]
233 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
236 $conf = ConfigManager
:: getInstance ();
237 $pshUrl = $conf- > get ( 'config.PUBSUBHUB_URL' );
240 include_once './publisher.php' ;
241 $p = new Publisher ( $pshUrl );
243 index_url ( $_SERVER ). '?do=atom' ,
244 index_url ( $_SERVER ). '?do=rss'
246 $p- > publish_update ( $topic_url );
250 // ------------------------------------------------------------------------------------------
251 // Session management
253 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
256 $ip = $_SERVER [ 'REMOTE_ADDR' ];
257 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
258 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
259 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
263 function fillSessionInfo () {
264 $conf = ConfigManager
:: getInstance ();
265 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
266 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
267 $_SESSION [ 'username' ]= $conf- > get ( 'login' );
268 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
271 // Check that user/password is correct.
272 function check_auth ( $login , $password )
274 $conf = ConfigManager
:: getInstance ();
275 $hash = sha1 ( $password . $login . $conf- > get ( 'salt' ));
276 if ( $login == $conf- > get ( 'login' ) && $hash == $conf- > get ( 'hash' ))
277 { // Login/password is correct.
279 logm ( $conf- > get ( 'config.LOG_FILE' ), $_SERVER [ 'REMOTE_ADDR' ], 'Login successful' );
282 logm ( $conf- > get ( 'config.LOG_FILE' ), $_SERVER [ 'REMOTE_ADDR' ], 'Login failed for user ' . $login );
286 // Returns true if the user is logged in.
287 function isLoggedIn ()
289 global $userIsLoggedIn ;
290 return $userIsLoggedIn ;
295 if ( isset ( $_SESSION )) {
296 unset ( $_SESSION [ 'uid' ]);
297 unset ( $_SESSION [ 'ip' ]);
298 unset ( $_SESSION [ 'username' ]);
299 unset ( $_SESSION [ 'privateonly' ]);
301 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
305 // ------------------------------------------------------------------------------------------
306 // Brute force protection system
307 // Several consecutive failed logins will ban the IP address for 30 minutes.
308 if (! is_file ( $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' ))) {
311 $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' ),
312 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( array ( 'FAILURES' => array (), 'BANS' => array ()), true ). "; \n ?>"
315 include $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' );
316 // Signal a failed login. Will ban the IP if too many failures:
317 function ban_loginFailed ()
319 $conf = ConfigManager
:: getInstance ();
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 ( 'config.BAN_AFTER' ) - 1 ))
326 $gb [ 'BANS' ][ $ip ] = time () +
$conf- > get ( 'config.BAN_DURATION' , 1800 );
327 logm ( $conf- > get ( 'config.LOG_FILE' ), $_SERVER [ 'REMOTE_ADDR' ], 'IP address banned from login' );
329 $GLOBALS [ 'IPBANS' ] = $gb ;
331 $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' ),
332 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
336 // Signals a successful login. Resets failed login counter.
337 function ban_loginOk ()
339 $conf = ConfigManager
:: getInstance ();
340 $ip = $_SERVER [ 'REMOTE_ADDR' ];
341 $gb = $GLOBALS [ 'IPBANS' ];
342 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
343 $GLOBALS [ 'IPBANS' ] = $gb ;
345 $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' ),
346 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
350 // Checks if the user CAN login. If 'true', the user can try to login.
351 function ban_canLogin ()
353 $conf = ConfigManager
:: getInstance ();
354 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
355 if ( isset ( $gb [ 'BANS' ][ $ip ]))
357 // User is banned. Check if the ban has expired:
358 if ( $gb [ 'BANS' ][ $ip ]<= time ())
359 { // Ban expired, user can try to login again.
360 logm ( $conf- > get ( 'config.LOG_FILE' ), $_SERVER [ 'REMOTE_ADDR' ], 'Ban lifted.' );
361 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
363 $conf- > get ( 'config.IPBANS_FILENAME' , 'data/ipbans.php' ),
364 "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>"
366 return true ; // Ban has expired, user can login.
368 return false ; // User is banned.
370 return true ; // User is not banned.
373 // ------------------------------------------------------------------------------------------
374 // Process login form: Check if login/password is correct.
375 if ( isset ( $_POST [ 'login' ]))
377 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
378 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
379 { // Login/password is OK.
381 // If user wants to keep the session cookie even after the browser closes:
382 if (! empty ( $_POST [ 'longlastingsession' ]))
384 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
385 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
386 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
388 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
389 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
390 // Note: Never forget the trailing slash on the cookie path!
391 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
393 else // Standard session expiration (=when browser closes)
395 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
396 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
397 session_regenerate_id ( true );
400 // Optional redirect after login:
401 if ( isset ( $_GET [ 'post' ])) {
402 $uri = '?post=' . urlencode ( $_GET [ 'post' ]);
403 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
404 if (! empty ( $_GET [ $param ])) {
405 $uri .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
408 header ( 'Location: ' . $uri );
412 if ( isset ( $_GET [ 'edit_link' ])) {
413 header ( 'Location: ?edit_link=' . escape ( $_GET [ 'edit_link' ]));
417 if ( isset ( $_POST [ 'returnurl' ])) {
418 // Prevent loops over login screen.
419 if ( strpos ( $_POST [ 'returnurl' ], 'do=login' ) === false ) {
420 header ( 'Location: ' . generateLocation ( $_POST [ 'returnurl' ], $_SERVER [ 'HTTP_HOST' ]));
424 header ( 'Location: ?' ); exit ;
429 $redir = '&username=' . $_POST [ 'login' ];
430 if ( isset ( $_GET [ 'post' ])) {
431 $redir .= '&post=' . urlencode ( $_GET [ 'post' ]);
432 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
433 if (! empty ( $_GET [ $param ])) {
434 $redir .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
438 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
443 // ------------------------------------------------------------------------------------------
444 // Misc utility functions:
446 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
447 function return_bytes ( $val )
449 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
452 case 'g' : $val *= 1024 ;
453 case 'm' : $val *= 1024 ;
454 case 'k' : $val *= 1024 ;
459 // Try to determine max file size for uploads (POST).
460 // Returns an integer (in bytes)
461 function getMaxFileSize ()
463 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
464 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
465 // Return the smaller of two:
466 $maxsize = min ( $size1 , $size2 );
467 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
471 // ------------------------------------------------------------------------------------------
472 // Token management for XSRF protection
473 // Token should be used in any form which acts on data (create,update,delete,import...).
474 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
479 $conf = ConfigManager
:: getInstance ();
480 $rnd = sha1 ( uniqid ( '' , true ) . '_' . mt_rand () . $conf- > get ( 'salt' )); // We generate a random string.
481 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
485 // Tells if a token is OK. Using this function will destroy the token.
487 function tokenOk ( $token )
489 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
491 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
492 return true ; // Token is OK.
494 return false ; // Wrong token, or already used.
497 // ------------------------------------------------------------------------------------------
498 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
499 // Gives the last 7 days (which have links).
500 // This RSS feed cannot be filtered.
501 function showDailyRSS () {
502 $conf = ConfigManager
:: getInstance ();
504 $query = $_SERVER [ 'QUERY_STRING' ];
505 $cache = new CachedPage (
506 $conf- > get ( 'config.PAGE_CACHE' ),
508 startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ()
510 $cached = $cache- > cachedVersion ();
511 if (! empty ( $cached )) {
516 // If cached was not found (or not usable), then read the database and build the response:
517 // Read links from database (and filter private links if used it not logged in).
518 $LINKSDB = new LinkDB (
519 $conf- > get ( 'config.DATASTORE' ),
521 $conf- > get ( 'config.HIDE_PUBLIC_LINKS' ),
522 $conf- > get ( 'redirector' ),
523 $conf- > get ( 'config.REDIRECTOR_URLENCODE' )
526 /* Some Shaarlies may have very few links, so we need to look
527 back in time (rsort()) until we have enough days ($nb_of_days).
529 $linkdates = array ();
530 foreach ( $LINKSDB as $linkdate => $value ) {
531 $linkdates [] = $linkdate ;
534 $nb_of_days = 7 ; // We take 7 days.
535 $today = date ( 'Ymd' );
538 foreach ( $linkdates as $linkdate ) {
539 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
540 if ( strcmp ( $day , $today ) < 0 ) {
541 if ( empty ( $days [ $day ])) {
542 $days [ $day ] = array ();
544 $days [ $day ][] = $linkdate ;
547 if ( count ( $days ) > $nb_of_days ) {
548 break ; // Have we collected enough days?
552 // Build the RSS feed.
553 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
554 $pageaddr = escape ( index_url ( $_SERVER ));
555 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
557 echo '<title>Daily - ' . $conf- > get ( 'title' ) . '</title>' ;
558 echo '<link>' . $pageaddr . '</link>' ;
559 echo '<description>Daily shared links</description>' ;
560 echo '<language>en-en</language>' ;
561 echo '<copyright>' . $pageaddr . '</copyright>' . PHP_EOL
;
564 foreach ( $days as $day => $linkdates ) {
565 $dayDate = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $day . '_000000' );
566 $absurl = escape ( index_url ( $_SERVER ). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
568 // Build the HTML body of this RSS entry.
573 // We pre-format some fields for proper output.
574 foreach ( $linkdates as $linkdate ) {
575 $l = $LINKSDB [ $linkdate ];
576 $l [ 'formatedDescription' ] = format_description ( $l [ 'description' ], $conf- > get ( 'redirector' ));
577 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
578 $l_date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $l [ 'linkdate' ]);
579 $l [ 'timestamp' ] = $l_date- > getTimestamp ();
580 if ( startsWith ( $l [ 'url' ], '?' )) {
581 $l [ 'url' ] = index_url ( $_SERVER ) . $l [ 'url' ]; // make permalink URL absolute
583 $links [ $linkdate ] = $l ;
586 // Then build the HTML for this day:
588 $tpl- > assign ( 'title' , $conf- > get ( 'title' ));
589 $tpl- > assign ( 'daydate' , $dayDate- > getTimestamp ());
590 $tpl- > assign ( 'absurl' , $absurl );
591 $tpl- > assign ( 'links' , $links );
592 $tpl- > assign ( 'rssdate' , escape ( $dayDate- > format ( DateTime
:: RSS
)));
593 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
595 echo $html . PHP_EOL
;
597 echo '</channel></rss><!-- Cached version of ' . escape ( page_url ( $_SERVER )) . ' -->' ;
599 $cache- > cache ( ob_get_contents ());
605 * Show the 'Daily' page.
607 * @param PageBuilder $pageBuilder Template engine wrapper.
608 * @param LinkDB $LINKSDB LinkDB instance.
610 function showDaily ( $pageBuilder , $LINKSDB )
612 $conf = ConfigManager
:: getInstance ();
613 $day = date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
614 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
616 $days = $LINKSDB- > days ();
617 $i = array_search ( $day , $days );
618 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
623 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
624 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
628 $linksToDisplay = $LINKSDB- > filterDay ( $day );
629 } catch ( Exception
$exc ) {
631 $linksToDisplay = array ();
634 // We pre-format some fields for proper output.
635 foreach ( $linksToDisplay as $key => $link )
638 $taglist = explode ( ' ' , $link [ 'tags' ]);
639 uasort ( $taglist , 'strcasecmp' );
640 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
641 $linksToDisplay [ $key ][ 'formatedDescription' ] = format_description ( $link [ 'description' ], $conf- > get ( 'redirector' ));
642 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
643 $date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $link [ 'linkdate' ]);
644 $linksToDisplay [ $key ][ 'timestamp' ] = $date- > getTimestamp ();
647 /* We need to spread the articles on 3 columns.
648 I did not want to use a JavaScript lib like http://masonry.desandro.com/
649 so I manually spread entries with a simple method: I roughly evaluate the
650 height of a div according to title and description length.
652 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
653 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
654 foreach ( $linksToDisplay as $key => $link )
656 // Roughly estimate length of entry (by counting characters)
657 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
658 // Description: 836 characters gives roughly 342 pixel height.
659 // This is not perfect, but it's usually OK.
660 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
661 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
662 // Then put in column which is the less filled:
663 $smallest = min ( $fill ); // find smallest value in array.
664 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
665 array_push ( $columns [ $index ], $link ); // Put entry in this column.
666 $fill [ $index ] +
= $length ;
669 $dayDate = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $day . '_000000' );
671 'linksToDisplay' => $linksToDisplay ,
673 'day' => $dayDate- > getTimestamp (),
674 'previousday' => $previousday ,
675 'nextday' => $nextday ,
677 $pluginManager = PluginManager
:: getInstance ();
678 $pluginManager- > executeHooks ( 'render_daily' , $data , array ( 'loggedin' => isLoggedIn ()));
680 foreach ( $data as $key => $value ) {
681 $pageBuilder- > assign ( $key , $value );
684 $pageBuilder- > renderPage ( 'daily' );
688 // Renders the linklist
689 function showLinkList ( $PAGE , $LINKSDB ) {
690 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
691 $PAGE- > renderPage ( 'linklist' );
695 // ------------------------------------------------------------------------------------------
696 // Render HTML page (according to URL parameters and user rights)
697 function renderPage ()
699 $conf = ConfigManager
:: getInstance ();
700 $LINKSDB = new LinkDB (
701 $conf- > get ( 'config.DATASTORE' ),
703 $conf- > get ( 'config.HIDE_PUBLIC_LINKS' ),
704 $conf- > get ( 'redirector' ),
705 $conf- > get ( 'config.REDIRECTOR_URLENCODE' )
708 $updater = new Updater (
709 read_updates_file ( $conf- > get ( 'config.UPDATES_FILE' )),
714 $newUpdates = $updater- > update ();
715 if (! empty ( $newUpdates )) {
717 $conf- > get ( 'config.UPDATES_FILE' ),
718 $updater- > getDoneUpdates ()
722 catch ( Exception
$e ) {
723 die ( $e- > getMessage ());
726 $PAGE = new PageBuilder ();
727 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
728 $PAGE- > assign ( 'privateLinkcount' , count_private ( $LINKSDB ));
730 // Determine which page will be rendered.
731 $query = ( isset ( $_SERVER [ 'QUERY_STRING' ])) ? $_SERVER [ 'QUERY_STRING' ] : '' ;
732 $targetPage = Router
:: findPage ( $query , $_GET , isLoggedIn ());
734 // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
735 // Then assign generated data to RainTPL.
736 $common_hooks = array (
741 $pluginManager = PluginManager
:: getInstance ();
742 foreach ( $common_hooks as $name ) {
743 $plugin_data = array ();
744 $pluginManager- > executeHooks ( 'render_' . $name , $plugin_data ,
746 'target' => $targetPage ,
747 'loggedin' => isLoggedIn ()
750 $PAGE- > assign ( 'plugins_' . $name , $plugin_data );
753 // -------- Display login form.
754 if ( $targetPage == Router
:: $PAGE_LOGIN )
756 if ( $conf- > get ( 'config.OPEN_SHAARLI' )) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
757 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
758 $PAGE- > assign ( 'token' , $token );
759 if ( isset ( $_GET [ 'username' ])) {
760 $PAGE- > assign ( 'username' , escape ( $_GET [ 'username' ]));
762 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
763 $PAGE- > renderPage ( 'loginform' );
766 // -------- User wants to logout.
767 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=logout' ))
769 invalidateCaches ( $conf- > get ( 'config.PAGECACHE' ));
771 header ( 'Location: ?' );
775 // -------- Picture wall
776 if ( $targetPage == Router
:: $PAGE_PICWALL )
778 // Optionally filter the results:
779 $links = $LINKSDB- > filterSearch ( $_GET );
780 $linksToDisplay = array ();
782 // Get only links which have a thumbnail.
783 foreach ( $links as $link )
785 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
786 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
787 if ( $thumb != '' ) // Only output links which have a thumbnail.
789 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
790 $linksToDisplay []= $link ; // Add to array.
795 'linksToDisplay' => $linksToDisplay ,
797 $pluginManager- > executeHooks ( 'render_picwall' , $data , array ( 'loggedin' => isLoggedIn ()));
799 foreach ( $data as $key => $value ) {
800 $PAGE- > assign ( $key , $value );
803 $PAGE- > renderPage ( 'picwall' );
807 // -------- Tag cloud
808 if ( $targetPage == Router
:: $PAGE_TAGCLOUD )
810 $tags = $LINKSDB- > allTags ();
812 // We sort tags alphabetically, then choose a font size according to count.
813 // First, find max value.
815 foreach ( $tags as $value ) {
816 $maxcount = max ( $maxcount , $value );
819 // Sort tags alphabetically: case insensitive, support locale if avalaible.
820 uksort ( $tags , function ( $a , $b ) {
821 // Collator is part of PHP intl.
822 if ( class_exists ( 'Collator' )) {
823 $c = new Collator ( setlocale ( LC_COLLATE
, 0 ));
824 if (! intl_is_failure ( intl_get_error_code ())) {
825 return $c- > compare ( $a , $b );
828 return strcasecmp ( $a , $b );
832 foreach ( $tags as $key => $value ) {
833 // Tag font size scaling:
834 // default 15 and 30 logarithm bases affect scaling,
835 // 22 and 6 are arbitrary font sizes for max and min sizes.
836 $size = log ( $value , 15 ) / log ( $maxcount , 30 ) * 2.2 +
0.8 ;
837 $tagList [ $key ] = array (
839 'size' => number_format ( $size , 2 , '.' , '' ),
846 $pluginManager- > executeHooks ( 'render_tagcloud' , $data , array ( 'loggedin' => isLoggedIn ()));
848 foreach ( $data as $key => $value ) {
849 $PAGE- > assign ( $key , $value );
852 $PAGE- > renderPage ( 'tagcloud' );
857 if ( $targetPage == Router
:: $PAGE_DAILY ) {
858 showDaily ( $PAGE , $LINKSDB );
861 // ATOM and RSS feed.
862 if ( $targetPage == Router
:: $PAGE_FEED_ATOM || $targetPage == Router
:: $PAGE_FEED_RSS ) {
863 $feedType = $targetPage == Router
:: $PAGE_FEED_RSS ? FeedBuilder
:: $FEED_RSS : FeedBuilder
:: $FEED_ATOM ;
864 header ( 'Content-Type: application/' . $feedType . '+xml; charset=utf-8' );
867 $query = $_SERVER [ 'QUERY_STRING' ];
868 $cache = new CachedPage (
869 $conf- > get ( 'config.PAGECACHE' ),
871 startsWith ( $query , 'do=' . $targetPage ) && ! isLoggedIn ()
873 $cached = $cache- > cachedVersion ();
874 if (! empty ( $cached )) {
880 $feedGenerator = new FeedBuilder ( $LINKSDB , $feedType , $_SERVER , $_GET , isLoggedIn ());
881 $feedGenerator- > setLocale ( strtolower ( setlocale ( LC_COLLATE
, 0 )));
882 $feedGenerator- > setHideDates ( $conf- > get ( 'config.HIDE_TIMESTAMPS' ) && ! isLoggedIn ());
883 $feedGenerator- > setUsePermalinks ( isset ( $_GET [ 'permalinks' ]) || ! $conf- > get ( 'config.ENABLE_RSS_PERMALINKS' ));
884 $pshUrl = $conf- > get ( 'config.PUBSUBHUB_URL' );
885 if (! empty ( $pshUrl )) {
886 $feedGenerator- > setPubsubhubUrl ( $pshUrl );
888 $data = $feedGenerator- > buildData ();
890 // Process plugin hook.
891 $pluginManager = PluginManager
:: getInstance ();
892 $pluginManager- > executeHooks ( 'render_feed' , $data , array (
893 'loggedin' => isLoggedIn (),
894 'target' => $targetPage ,
897 // Render the template.
898 $PAGE- > assignAll ( $data );
899 $PAGE- > renderPage ( 'feed.' . $feedType );
900 $cache- > cache ( ob_get_contents ());
905 // Display openseach plugin (XML)
906 if ( $targetPage == Router
:: $PAGE_OPENSEARCH ) {
907 header ( 'Content-Type: application/xml; charset=utf-8' );
908 $PAGE- > assign ( 'serverurl' , index_url ( $_SERVER ));
909 $PAGE- > renderPage ( 'opensearch' );
913 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
914 if ( isset ( $_GET [ 'addtag' ]))
916 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
917 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
918 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
920 // Prevent redirection loop
921 if ( isset ( $params [ 'addtag' ])) {
922 unset ( $params [ 'addtag' ]);
925 // Check if this tag is already in the search query and ignore it if it is.
926 // Each tag is always separated by a space
927 if ( isset ( $params [ 'searchtags' ])) {
928 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
930 $current_tags = array ();
933 foreach ( $current_tags as $value ) {
934 if ( $value === $_GET [ 'addtag' ]) {
939 // Append the tag if necessary
940 if ( empty ( $params [ 'searchtags' ])) {
941 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
944 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
947 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
948 header ( 'Location: ?' . http_build_query ( $params ));
952 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
953 if ( isset ( $_GET [ 'removetag' ])) {
954 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
955 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) {
956 header ( 'Location: ?' );
960 // In case browser does not send HTTP_REFERER
961 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
963 // Prevent redirection loop
964 if ( isset ( $params [ 'removetag' ])) {
965 unset ( $params [ 'removetag' ]);
968 if ( isset ( $params [ 'searchtags' ])) {
969 $tags = explode ( ' ' , $params [ 'searchtags' ]);
970 // Remove value from array $tags.
971 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ]));
972 $params [ 'searchtags' ] = implode ( ' ' , $tags );
974 if ( empty ( $params [ 'searchtags' ])) {
975 unset ( $params [ 'searchtags' ]);
978 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
980 header ( 'Location: ?' . http_build_query ( $params ));
984 // -------- User wants to change the number of links per page (linksperpage=...)
985 if ( isset ( $_GET [ 'linksperpage' ])) {
986 if ( is_numeric ( $_GET [ 'linksperpage' ])) {
987 $_SESSION [ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET [ 'linksperpage' ]));
990 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'linksperpage' )));
994 // -------- User wants to see only private links (toggle)
995 if ( isset ( $_GET [ 'privateonly' ])) {
996 if ( empty ( $_SESSION [ 'privateonly' ])) {
997 $_SESSION [ 'privateonly' ] = 1 ; // See only private links
999 unset ( $_SESSION [ 'privateonly' ]); // See all links
1002 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'privateonly' )));
1006 // -------- Handle other actions allowed for non-logged in users:
1009 // User tries to post new link but is not logged in:
1010 // Show login screen, then redirect to ?post=...
1011 if ( isset ( $_GET [ 'post' ]))
1013 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.
1017 showLinkList ( $PAGE , $LINKSDB );
1018 if ( isset ( $_GET [ 'edit_link' ])) {
1019 header ( 'Location: ?do=login&edit_link=' . escape ( $_GET [ 'edit_link' ]));
1023 exit ; // Never remove this one! All operations below are reserved for logged in user.
1026 // -------- All other functions are reserved for the registered user:
1028 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1029 if ( $targetPage == Router
:: $PAGE_TOOLS )
1032 'pageabsaddr' => index_url ( $_SERVER ),
1034 $pluginManager- > executeHooks ( 'render_tools' , $data );
1036 foreach ( $data as $key => $value ) {
1037 $PAGE- > assign ( $key , $value );
1040 $PAGE- > renderPage ( 'tools' );
1044 // -------- User wants to change his/her password.
1045 if ( $targetPage == Router
:: $PAGE_CHANGEPASSWORD )
1047 if ( $conf- > get ( 'config.OPEN_SHAARLI' )) {
1048 die ( 'You are not supposed to change a password on an Open Shaarli.' );
1051 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1053 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1055 // Make sure old password is correct.
1056 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $conf- > get ( 'login' ). $conf- > get ( 'salt' ));
1057 if ( $oldhash != $conf- > get ( 'hash' )) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1058 // Save new password
1059 // Salt renders rainbow-tables attacks useless.
1060 $conf- > set ( 'salt' , sha1 ( uniqid ( '' , true ) . '_' . mt_rand ()));
1061 $conf- > set ( 'hash' , sha1 ( $_POST [ 'setpassword' ] . $conf- > get ( 'login' ) . $conf- > get ( 'salt' )));
1063 $conf- > write ( isLoggedIn ());
1065 catch ( Exception
$e ) {
1067 'ERROR while writing config file after changing password.' . PHP_EOL
.
1071 // TODO: do not handle exceptions/errors in JS.
1072 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1075 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1078 else // show the change password form.
1080 $PAGE- > assign ( 'token' , getToken ());
1081 $PAGE- > renderPage ( 'changepassword' );
1086 // -------- User wants to change configuration
1087 if ( $targetPage == Router
:: $PAGE_CONFIGURE )
1089 if (! empty ( $_POST [ 'title' ]) )
1091 if (! tokenOk ( $_POST [ 'token' ])) {
1092 die ( 'Wrong token.' ); // Go away!
1095 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])
1096 && isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])
1098 $tz = $_POST [ 'continent' ] . '/' . $_POST [ 'city' ];
1100 $conf- > set ( 'timezone' , $tz );
1101 $conf- > set ( 'title' , $_POST [ 'title' ]);
1102 $conf- > set ( 'titleLink' , $_POST [ 'titleLink' ]);
1103 $conf- > set ( 'redirector' , $_POST [ 'redirector' ]);
1104 $conf- > set ( 'disablesessionprotection' , ! empty ( $_POST [ 'disablesessionprotection' ]));
1105 $conf- > set ( 'privateLinkByDefault' , ! empty ( $_POST [ 'privateLinkByDefault' ]));
1106 $conf- > set ( 'config.ENABLE_RSS_PERMALINKS' , ! empty ( $_POST [ 'enableRssPermalinks' ]));
1107 $conf- > set ( 'config.ENABLE_UPDATECHECK' , ! empty ( $_POST [ 'updateCheck' ]));
1108 $conf- > set ( 'config.HIDE_PUBLIC_LINKS' , ! empty ( $_POST [ 'hidePublicLinks' ]));
1110 $conf- > write ( isLoggedIn ());
1112 catch ( Exception
$e ) {
1114 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1118 // TODO: do not handle exceptions/errors in JS.
1119 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=configure \' ;</script>' ;
1122 echo '<script>alert("Configuration was saved.");document.location= \' ?do=configure \' ;</script>' ;
1125 else // Show the configuration form.
1127 $PAGE- > assign ( 'token' , getToken ());
1128 $PAGE- > assign ( 'title' , $conf- > get ( 'title' ));
1129 $PAGE- > assign ( 'redirector' , $conf- > get ( 'redirector' ));
1130 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ( $conf- > get ( 'timezone' ));
1131 $PAGE- > assign ( 'timezone_form' , $timezone_form );
1132 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1133 $PAGE- > assign ( 'private_links_default' , $conf- > get ( 'privateLinkByDefault' ));
1134 $PAGE- > assign ( 'enable_rss_permalinks' , $conf- > get ( 'config.ENABLE_RSS_PERMALINKS' ));
1135 $PAGE- > assign ( 'enable_update_check' , $conf- > get ( 'config.ENABLE_UPDATECHECK' ));
1136 $PAGE- > assign ( 'hide_public_links' , $conf- > get ( 'config.HIDE_PUBLIC_LINKS' ));
1137 $PAGE- > renderPage ( 'configure' );
1142 // -------- User wants to rename a tag or delete it
1143 if ( $targetPage == Router
:: $PAGE_CHANGETAG )
1145 if ( empty ( $_POST [ 'fromtag' ]) || ( empty ( $_POST [ 'totag' ]) && isset ( $_POST [ 'renametag' ]))) {
1146 $PAGE- > assign ( 'token' , getToken ());
1147 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1148 $PAGE- > renderPage ( 'changetag' );
1152 if (! tokenOk ( $_POST [ 'token' ])) {
1153 die ( 'Wrong token.' );
1157 if ( isset ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ])) {
1158 $needle = trim ( $_POST [ 'fromtag' ]);
1159 // True for case-sensitive tag search.
1160 $linksToAlter = $LINKSDB- > filterSearch ( array ( 'searchtags' => $needle ), true );
1161 foreach ( $linksToAlter as $key => $value )
1163 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1164 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1165 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1166 $LINKSDB [ $key ]= $value ;
1168 $LINKSDB- > savedb ( $conf- > get ( 'config.PAGECACHE' ));
1169 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1174 if ( isset ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ])) {
1175 $needle = trim ( $_POST [ 'fromtag' ]);
1176 // True for case-sensitive tag search.
1177 $linksToAlter = $LINKSDB- > filterSearch ( array ( 'searchtags' => $needle ), true );
1178 foreach ( $linksToAlter as $key => $value )
1180 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1181 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1182 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1183 $LINKSDB [ $key ]= $value ;
1185 $LINKSDB- > savedb ( $conf- > get ( 'config.PAGECACHE' )); // Save to disk.
1186 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1191 // -------- User wants to add a link without using the bookmarklet: Show form.
1192 if ( $targetPage == Router
:: $PAGE_ADDLINK )
1194 $PAGE- > renderPage ( 'addlink' );
1198 // -------- User clicked the "Save" button when editing a link: Save link to database.
1199 if ( isset ( $_POST [ 'save_edit' ]))
1202 if (! tokenOk ( $_POST [ 'token' ])) {
1203 die ( 'Wrong token.' );
1205 // Remove multiple spaces.
1206 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ]));
1207 // Remove first '-' char in tags.
1208 $tags = preg_replace ( '/(^| )\-/' , ' $1' , $tags );
1209 // Remove duplicates.
1210 $tags = implode(' ', array_unique(explode(' ', $tags )));
1211 $linkdate = $_POST [' lf_linkdate
'];
1212 $url = trim( $_POST [' lf_url
']);
1213 if (! startsWith( $url , ' http
: ') && ! startsWith( $url , ' https
: ')
1214 && ! startsWith( $url , ' ftp
: ') && ! startsWith( $url , ' magnet
: ')
1215 && ! startsWith( $url , ' ? ') && ! startsWith( $url , ' javascript
: ')
1217 $url = ' http
: //' . $url;
1221 'title' => trim ( $_POST [ 'lf_title' ]),
1223 'description' => $_POST [ 'lf_description' ],
1224 'private' => ( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1225 'linkdate' => $linkdate ,
1226 'tags' => str_replace ( ',' , ' ' , $tags )
1228 // If title is empty, use the URL as title.
1229 if ( $link [ 'title' ] == '' ) {
1230 $link [ 'title' ] = $link [ 'url' ];
1233 $pluginManager- > executeHooks ( 'save_link' , $link );
1235 $LINKSDB [ $linkdate ] = $link ;
1236 $LINKSDB- > savedb ( $conf- > get ( 'config.PAGECACHE' ));
1239 // If we are called from the bookmarklet, we must close the popup:
1240 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) {
1241 echo '<script>self.close();</script>' ;
1245 $returnurl = ! empty ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' ;
1246 $location = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1247 // Scroll to the link which has been edited.
1248 $location .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]);
1249 // After saving the link, redirect to the page the user was on.
1250 header ( 'Location: ' . $location );
1254 // -------- User clicked the "Cancel" button when editing a link.
1255 if ( isset ( $_POST [ 'cancel_edit' ]))
1257 // If we are called from the bookmarklet, we must close the popup:
1258 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1259 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1260 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1261 $returnurl = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1262 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1266 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1267 if ( isset ( $_POST [ 'delete_link' ]))
1269 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1270 // We do not need to ask for confirmation:
1271 // - confirmation is handled by JavaScript
1272 // - we are protected from XSRF by the token.
1273 $linkdate = $_POST [ 'lf_linkdate' ];
1275 $pluginManager- > executeHooks ( 'delete_link' , $LINKSDB [ $linkdate ]);
1277 unset ( $LINKSDB [ $linkdate ]);
1278 $LINKSDB- > savedb ( 'config.PAGECACHE' ); // save to disk
1280 // If we are called from the bookmarklet, we must close the popup:
1281 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1282 // Pick where we're going to redirect
1283 // =============================================================
1284 // Basically, we can't redirect to where we were previously if it was a permalink
1285 // or an edit_link, because it would 404.
1287 // - / : nothing in $_GET, redirect to self
1288 // - /?page : redirect to self
1289 // - /?searchterm : redirect to self (there might be other links)
1290 // - /?searchtags : redirect to self
1291 // - /permalink : redirect to / (the link does not exist anymore)
1292 // - /?edit_link : redirect to / (the link does not exist anymore)
1293 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1294 // redirect is not satisfied, and only then redirect to /
1297 if ( count ( $_GET ) == 0
1298 || isset ( $_GET [ 'page' ])
1299 || isset ( $_GET [ 'searchterm' ])
1300 || isset ( $_GET [ 'searchtags' ])
1302 if ( isset ( $_POST [ 'returnurl' ])) {
1303 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1305 $location = generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'delete_link' ));
1309 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1313 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1314 if ( isset ( $_GET [ 'edit_link' ]))
1316 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1317 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1320 'link_is_new' => false ,
1321 'token' => getToken (),
1322 'http_referer' => ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ),
1323 'tags' => $LINKSDB- > allTags (),
1325 $pluginManager- > executeHooks ( 'render_editlink' , $data );
1327 foreach ( $data as $key => $value ) {
1328 $PAGE- > assign ( $key , $value );
1331 $PAGE- > renderPage ( 'editlink' );
1335 // -------- User want to post a new link: Display link edit form.
1336 if ( isset ( $_GET [ 'post' ])) {
1337 $url = cleanup_url ( $_GET [ 'post' ]);
1339 $link_is_new = false ;
1340 // Check if URL is not already in database (in this case, we will edit the existing link)
1341 $link = $LINKSDB- > getLinkFromUrl ( $url );
1344 $link_is_new = true ;
1345 $linkdate = strval ( date ( 'Ymd_His' ));
1346 // Get title if it was provided in URL (by the bookmarklet).
1347 $title = empty ( $_GET [ 'title' ]) ? '' : escape ( $_GET [ 'title' ]);
1348 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1349 $description = empty ( $_GET [ 'description' ]) ? '' : escape ( $_GET [ 'description' ]);
1350 $tags = empty ( $_GET [ 'tags' ]) ? '' : escape ( $_GET [ 'tags' ]);
1351 $private = ! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ;
1352 // 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.)
1353 if ( empty ( $title ) && strpos ( get_url_scheme ( $url ), 'http' ) !== false ) {
1354 // Short timeout to keep the application responsive
1355 list ( $headers , $content ) = get_http_response ( $url , 4 );
1356 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
1357 // Retrieve charset.
1358 $charset = get_charset ( $headers , $content );
1360 $title = html_extract_title ( $content );
1361 // Re-encode title in utf-8 if necessary.
1362 if (! empty ( $title ) && strtolower ( $charset ) != 'utf-8' ) {
1363 $title = mb_convert_encoding ( $title , 'utf-8' , $charset );
1369 $url = '?' . smallHash ( $linkdate );
1372 $url = escape ( $url );
1373 $title = escape ( $title );
1376 'linkdate' => $linkdate ,
1379 'description' => $description ,
1381 'private' => $private
1387 'link_is_new' => $link_is_new ,
1388 'token' => getToken (), // XSRF protection.
1389 'http_referer' => ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ),
1390 'source' => ( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ),
1391 'tags' => $LINKSDB- > allTags (),
1393 $pluginManager- > executeHooks ( 'render_editlink' , $data );
1395 foreach ( $data as $key => $value ) {
1396 $PAGE- > assign ( $key , $value );
1399 $PAGE- > renderPage ( 'editlink' );
1403 if ( $targetPage == Router
:: $PAGE_EXPORT ) {
1404 // Export links as a Netscape Bookmarks file
1406 if ( empty ( $_GET [ 'selection' ])) {
1407 $PAGE- > renderPage ( 'export' );
1411 // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1412 $selection = $_GET [ 'selection' ];
1413 if ( isset ( $_GET [ 'prepend_note_url' ])) {
1414 $prependNoteUrl = $_GET [ 'prepend_note_url' ];
1416 $prependNoteUrl = false ;
1422 NetscapeBookmarkUtils
:: filterAndFormat (
1429 } catch ( Exception
$exc ) {
1430 header ( 'Content-Type: text/plain; charset=utf-8' );
1431 echo $exc- > getMessage ();
1434 $now = new DateTime ();
1435 header ( 'Content-Type: text/html; charset=utf-8' );
1437 'Content-disposition: attachment; filename=bookmarks_'
1438 . $selection . '_' . $now- > format ( LinkDB
:: LINK_DATE_FORMAT
). '.html'
1440 $PAGE- > assign ( 'date' , $now- > format ( DateTime
:: RFC822
));
1441 $PAGE- > assign ( 'eol' , PHP_EOL
);
1442 $PAGE- > assign ( 'selection' , $selection );
1443 $PAGE- > renderPage ( 'export.bookmarks' );
1447 // -------- User is uploading a file for import
1448 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=upload' ))
1450 // If file is too big, some form field may be missing.
1451 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1453 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1454 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>' ;
1457 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1458 importFile ( $LINKSDB );
1462 // -------- Show upload/import dialog:
1463 if ( $targetPage == Router
:: $PAGE_IMPORT )
1465 $PAGE- > assign ( 'token' , getToken ());
1466 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1467 $PAGE- > renderPage ( 'import' );
1471 // Plugin administration page
1472 if ( $targetPage == Router
:: $PAGE_PLUGINSADMIN ) {
1473 $pluginMeta = $pluginManager- > getPluginsMeta ();
1475 // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1476 $enabledPlugins = array_filter ( $pluginMeta , function ( $v ) { return $v
[ 'order' ] !== false ; });
1478 $enabledPlugins = load_plugin_parameter_values ( $enabledPlugins , $conf- > get ( 'plugins' , array ()));
1481 function ( $a , $b ) { return $a
[ 'order' ] - $b
[ 'order' ]; }
1483 $disabledPlugins = array_filter ( $pluginMeta , function ( $v ) { return $v
[ 'order' ] === false ; });
1485 $PAGE- > assign ( 'enabledPlugins' , $enabledPlugins );
1486 $PAGE- > assign ( 'disabledPlugins' , $disabledPlugins );
1487 $PAGE- > renderPage ( 'pluginsadmin' );
1491 // Plugin administration form action
1492 if ( $targetPage == Router
:: $PAGE_SAVE_PLUGINSADMIN ) {
1494 if ( isset ( $_POST [ 'parameters_form' ])) {
1495 unset ( $_POST [ 'parameters_form' ]);
1496 foreach ( $_POST as $param => $value ) {
1497 $conf- > set ( 'plugins.' . $param , escape ( $value ));
1501 $conf- > set ( 'config.ENABLED_PLUGINS' , save_plugin_config ( $_POST ));
1503 $conf- > write ( isLoggedIn ());
1505 catch ( Exception
$e ) {
1507 'ERROR while saving plugin configuration:.' . PHP_EOL
.
1511 // TODO: do not handle exceptions/errors in JS.
1512 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=' . Router
:: $PAGE_PLUGINSADMIN . ' \' ;</script>' ;
1515 header ( 'Location: ?do=' . Router
:: $PAGE_PLUGINSADMIN );
1519 // -------- Otherwise, simply display search form and links:
1520 showLinkList ( $PAGE , $LINKSDB );
1524 // -----------------------------------------------------------------------------------------------
1525 // Process the import file form.
1526 function importFile ( $LINKSDB )
1528 if (! isLoggedIn ()) { die ( 'Not allowed.' ); }
1529 $conf = ConfigManager
:: getInstance ();
1531 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1532 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1533 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1534 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1535 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1540 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1542 // Then import the bookmarks.
1543 if ( $type == 'netscape' )
1545 // This is a standard Netscape-style bookmark file.
1546 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1547 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1549 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1550 $d = explode ( '<DD>' , $html );
1551 if ( startsWith ( $d [ 0 ], '<A ' ))
1553 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1554 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1555 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1556 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1558 foreach ( $matches as $m )
1560 $attr = $m [ 1 ]; $value = $m [ 2 ];
1561 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1562 elseif ( $attr == 'ADD_DATE' )
1564 $raw_add_date = intval ( $value );
1565 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1567 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1568 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1570 if ( $link [ 'url' ]!= '' )
1572 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1573 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1575 { // Link not in database, let's import it...
1576 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1578 // Make sure date/time is not already used by another link.
1579 // (Some bookmark files have several different links with the same ADD_DATE)
1580 // We increment date by 1 second until we find a date which is not used in DB.
1581 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1582 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1583 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1584 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1587 else // Link already present in database.
1590 { // If overwrite is required, we import link data, except date/time.
1591 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1592 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1600 $LINKSDB- > savedb ( $conf- > get ( 'config.PAGECACHE' ));
1602 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1606 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1611 * Template for the list of links (<div id="linklist">)
1612 * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1614 * @param pageBuilder $PAGE pageBuilder instance.
1615 * @param LinkDB $LINKSDB LinkDB instance.
1617 function buildLinkList ( $PAGE , $LINKSDB )
1619 $conf = ConfigManager
:: getInstance ();
1620 // Used in templates
1621 $searchtags = ! empty ( $_GET [ 'searchtags' ]) ? escape ( $_GET [ 'searchtags' ]) : '' ;
1622 $searchterm = ! empty ( $_GET [ 'searchterm' ]) ? escape ( $_GET [ 'searchterm' ]) : '' ;
1625 if (! empty ( $_SERVER [ 'QUERY_STRING' ])
1626 && preg_match ( '/^[a-zA-Z0-9-_@] {6} ( $| &|#)/' , $_SERVER [ 'QUERY_STRING' ])) {
1628 $linksToDisplay = $LINKSDB- > filterHash ( $_SERVER [ 'QUERY_STRING' ]);
1629 } catch ( LinkNotFoundException
$e ) {
1630 $PAGE- > render404 ( $e- > getMessage ());
1634 // Filter links according search parameters.
1635 $privateonly = ! empty ( $_SESSION [ 'privateonly' ]);
1636 $linksToDisplay = $LINKSDB- > filterSearch ( $_GET , false , $privateonly );
1639 // ---- Handle paging.
1641 foreach ( $linksToDisplay as $key => $value ) {
1645 // If there is only a single link, we change on-the-fly the title of the page.
1646 if ( count ( $linksToDisplay ) == 1 ) {
1647 $conf- > set ( 'pagetitle' , $linksToDisplay [ $keys [ 0 ]][ 'title' ] . ' - ' . $conf- > get ( 'title' ));
1650 // Select articles according to paging.
1651 $pagecount = ceil ( count ( $keys ) / $_SESSION [ 'LINKS_PER_PAGE' ]);
1652 $pagecount = $pagecount == 0 ? 1 : $pagecount ;
1653 $page = empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]);
1654 $page = $page < 1 ? 1 : $page ;
1655 $page = $page > $pagecount ? $pagecount : $page ;
1657 $i = ( $page-1 ) * $_SESSION [ 'LINKS_PER_PAGE' ];
1658 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1659 $linkDisp = array ();
1660 while ( $i < $end && $i < count ( $keys ))
1662 $link = $linksToDisplay [ $keys [ $i ]];
1663 $link [ 'description' ] = format_description ( $link [ 'description' ], $conf- > get ( 'redirector' ));
1664 $classLi = ( $i %
2 ) != 0 ? '' : 'publicLinkHightLight' ;
1665 $link [ 'class' ] = $link [ 'private' ] == 0 ? $classLi : 'private' ;
1666 $date = DateTime
:: createFromFormat ( LinkDB
:: LINK_DATE_FORMAT
, $link [ 'linkdate' ]);
1667 $link [ 'timestamp' ] = $date- > getTimestamp ();
1668 $taglist = explode ( ' ' , $link [ 'tags' ]);
1669 uasort ( $taglist , 'strcasecmp' );
1670 $link [ 'taglist' ] = $taglist ;
1671 $link [ 'shorturl' ] = smallHash ( $link [ 'linkdate' ]);
1672 // Check for both signs of a note: starting with ? and 7 chars long.
1673 if ( $link [ 'url' ][ 0 ] === '?' &&
1674 strlen ( $link [ 'url' ]) === 7 ) {
1675 $link [ 'url' ] = index_url ( $_SERVER ) . $link [ 'url' ];
1678 $linkDisp [ $keys [ $i ]] = $link ;
1682 // Compute paging navigation
1683 $searchtagsUrl = empty ( $searchtags ) ? '' : '&searchtags=' . urlencode ( $searchtags );
1684 $searchtermUrl = empty ( $searchterm ) ? '' : '&searchterm=' . urlencode ( $searchterm );
1685 $previous_page_url = '' ;
1686 if ( $i != count ( $keys )) {
1687 $previous_page_url = '?page=' . ( $page +
1 ) . $searchtermUrl . $searchtagsUrl ;
1691 $next_page_url = '?page=' . ( $page-1 ) . $searchtermUrl . $searchtagsUrl ;
1694 $token = isLoggedIn () ? getToken () : '' ;
1696 // Fill all template fields.
1698 'previous_page_url' => $previous_page_url ,
1699 'next_page_url' => $next_page_url ,
1700 'page_current' => $page ,
1701 'page_max' => $pagecount ,
1702 'result_count' => count ( $linksToDisplay ),
1703 'search_term' => $searchterm ,
1704 'search_tags' => $searchtags ,
1705 'redirector' => $conf- > get ( 'redirector' ), // Optional redirector URL.
1707 'links' => $linkDisp ,
1708 'tags' => $LINKSDB- > allTags (),
1710 // FIXME! temporary fix - see #399.
1711 if ( $conf- > exists ( 'pagetitle' ) && count ( $linkDisp ) == 1 ) {
1712 $data [ 'pagetitle' ] = $conf- > get ( 'pagetitle' );
1715 $pluginManager = PluginManager
:: getInstance ();
1716 $pluginManager- > executeHooks ( 'render_linklist' , $data , array ( 'loggedin' => isLoggedIn ()));
1718 foreach ( $data as $key => $value ) {
1719 $PAGE- > assign ( $key , $value );
1725 // Compute the thumbnail for a link.
1727 // With a link to the original URL.
1728 // Understands various services (youtube.com...)
1729 // Input: $url = URL for which the thumbnail must be found.
1730 // $href = if provided, this URL will be followed instead of $url
1731 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1732 // Some of them may be missing.
1733 // Return an empty array if no thumbnail available.
1734 function computeThumbnail ( $url , $href = false )
1736 $conf = ConfigManager
:: getInstance ();
1737 if (! $conf- > get ( 'config.ENABLE_THUMBNAILS' )) return array ();
1738 if ( $href == false ) $href = $url ;
1740 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1741 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1742 // ^^^^^^^^^^^ ^^^^^^^^^^^
1743 $domain = parse_url ( $url , PHP_URL_HOST
);
1744 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1746 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1747 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1748 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1750 if ( $domain == 'youtu.be' ) // Youtube short links
1752 $path = parse_url ( $url , PHP_URL_PATH
);
1753 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1754 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1756 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1758 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1759 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1760 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1763 if ( $domain == 'imgur.com' )
1765 $path = parse_url ( $url , PHP_URL_PATH
);
1766 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1767 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1768 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1769 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1770 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1772 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1773 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1775 if ( $domain == 'i.imgur.com' )
1777 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1778 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1779 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1781 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1783 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1785 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1786 return array ( 'src' => $thumburl ,
1787 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1790 if ( endsWith ( $domain , '.imageshack.us' ))
1792 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1793 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1795 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1796 return array ( 'src' => $thumburl ,
1797 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1801 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1802 // So we deport the thumbnail generation in order not to slow down page generation
1803 // (and we also cache the thumbnail)
1805 if (! $conf- > get ( 'config.ENABLE_LOCALCACHE' )) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1807 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1808 || $domain == 'vimeo.com'
1809 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1810 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1813 if ( $domain == 'vimeo.com' )
1814 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1815 $path = parse_url ( $url , PHP_URL_PATH
);
1816 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1818 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1819 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1820 $path = parse_url ( $url , PHP_URL_PATH
);
1821 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1823 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1824 { // Make sure this TED URL points to a video (/talks/...)
1825 $path = parse_url ( $url , PHP_URL_PATH
);
1826 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1828 $sign = hash_hmac ( 'sha256' , $url , $conf- > get ( 'salt' )); // We use the salt to sign data (it's random, secret, and specific to each installation)
1829 return array ( 'src' => index_url ( $_SERVER ). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1830 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1833 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1834 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1835 // But using the extension will do.
1836 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1837 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1839 $sign = hash_hmac ( 'sha256' , $url , $conf- > get ( 'salt' )); // We use the salt to sign data (it's random, secret, and specific to each installation)
1840 return array ( 'src' => index_url ( $_SERVER ). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1841 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1843 return array (); // No thumbnail.
1848 // Returns the HTML code to display a thumbnail for a link
1849 // with a link to the original URL.
1850 // Understands various services (youtube.com...)
1851 // Input: $url = URL for which the thumbnail must be found.
1852 // $href = if provided, this URL will be followed instead of $url
1853 // Returns '' if no thumbnail available.
1854 function thumbnail ( $url , $href = false )
1856 $t = computeThumbnail ( $url , $href );
1857 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1859 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1860 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1861 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1862 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1863 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1868 // Returns the HTML code to display a thumbnail for a link
1869 // for the picture wall (using lazy image loading)
1870 // Understands various services (youtube.com...)
1871 // Input: $url = URL for which the thumbnail must be found.
1872 // $href = if provided, this URL will be followed instead of $url
1873 // Returns '' if no thumbnail available.
1874 function lazyThumbnail ( $url , $href = false )
1876 $t = computeThumbnail ( $url , $href );
1877 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1879 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
1882 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
1884 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1885 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1886 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1887 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1890 // No-JavaScript fallback.
1891 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
1892 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1893 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1894 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1895 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1896 $html .= '></noscript></a>' ;
1902 // -----------------------------------------------------------------------------------------------
1904 // This function should NEVER be called if the file data/config.php exists.
1907 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1908 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
1911 // This part makes sure sessions works correctly.
1912 // (Because on some hosts, session.save_path may not be set correctly,
1913 // or we may not have write access to it.)
1914 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
1915 { // Step 2: Check if data in session is correct.
1916 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
1917 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
1918 echo 'It currently points to ' . session_save_path (). '<br>' ;
1919 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>' ;
1920 echo '<br><a href="?">Click to try again.</a></pre>' ;
1923 if (! isset ( $_SESSION [ 'session_tested' ]))
1924 { // Step 1 : Try to store data in session and reload page.
1925 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
1926 header ( 'Location: ' . index_url ( $_SERVER ). '?test_session' ); // Redirect to check stored data.
1928 if ( isset ( $_GET [ 'test_session' ]))
1929 { // Step 3: Sessions are OK. Remove test parameter from URL.
1930 header ( 'Location: ' . index_url ( $_SERVER ));
1934 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
1936 $conf = ConfigManager
:: getInstance ();
1938 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])
1939 && isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])
1941 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1943 $conf- > set ( 'timezone' , $tz );
1944 $login = $_POST [ 'setlogin' ];
1945 $conf- > set ( 'login' , $login );
1946 $salt = sha1 ( uniqid ( '' , true ) . '_' . mt_rand ());
1947 $conf- > set ( 'salt' , $salt );
1948 $conf- > set ( 'hash' , sha1 ( $_POST [ 'setpassword' ] . $login . $salt ));
1949 if (! empty ( $_POST [ 'title' ])) {
1950 $conf- > set ( 'title' , $_POST [ 'title' ]);
1952 $conf- > set ( 'title' , 'Shared links on ' . escape ( index_url ( $_SERVER )));
1954 $conf- > set ( 'config.ENABLE_UPDATECHECK' , ! empty ( $_POST [ 'updateCheck' ]));
1956 // Everything is ok, let's create config file.
1957 $conf- > write ( isLoggedIn ());
1959 catch ( Exception
$e ) {
1961 'ERROR while writing config file after installation.' . PHP_EOL
.
1965 // TODO: do not handle exceptions/errors in JS.
1966 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
1969 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
1973 // Display config form:
1974 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ();
1975 $timezone_html = '' ;
1976 if ( $timezone_form != '' ) {
1977 $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
1980 $PAGE = new PageBuilder ();
1981 $PAGE- > assign ( 'timezone_html' , $timezone_html );
1982 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1983 $PAGE- > renderPage ( 'install' );
1987 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
1988 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
1989 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
1990 This function is called by passing the URL:
1991 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
1992 [URL] is the URL of the link (e.g. a flickr page)
1993 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
1994 The function below will fetch the image from the webservice and store it in the cache.
1996 function genThumbnail ()
1998 $conf = ConfigManager
:: getInstance ();
1999 // Make sure the parameters in the URL were generated by us.
2000 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $conf- > get ( 'salt' ));
2001 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2003 $cacheDir = $conf- > get ( 'config.CACHEDIR' , 'cache' );
2004 // Let's see if we don't already have the image for this URL in the cache.
2005 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2006 if ( is_file ( $cacheDir . '/' . $thumbname ))
2007 { // We have the thumbnail, just serve it:
2008 header ( 'Content-Type: image/jpeg' );
2009 echo file_get_contents ( $cacheDir . '/' . $thumbname );
2012 // We may also serve a blank image (if service did not respond)
2013 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2014 if ( is_file ( $cacheDir . '/' . $blankname ))
2016 header ( 'Content-Type: image/gif' );
2017 echo file_get_contents ( $cacheDir . '/' . $blankname );
2021 // Otherwise, generate the thumbnail.
2022 $url = $_GET [ 'url' ];
2023 $domain = parse_url ( $url , PHP_URL_HOST
);
2025 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2027 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2028 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2030 // Is this a link to an image, or to a flickr page ?
2032 if ( endsWith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2033 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2034 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2035 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2037 else // This is a flickr page (html)
2039 // Get the flickr html page.
2040 list ( $headers , $content ) = get_http_response ( $url , 20 );
2041 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false )
2043 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2044 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $content , $matches );
2045 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2047 // In albums (and some other pages), the link rel="image_src" is not provided,
2048 // but flickr provides:
2049 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2052 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $content , $matches );
2053 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2059 { // Let's download the image.
2060 // Image is 240x120, so 10 seconds to download should be enough.
2061 list ( $headers , $content ) = get_http_response ( $imageurl , 10 );
2062 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2063 // Save image to cache.
2064 file_put_contents ( $cacheDir . '/' . $thumbname , $content );
2065 header ( 'Content-Type: image/jpeg' );
2072 elseif ( $domain == 'vimeo.com' )
2074 // This is more complex: we have to perform a HTTP request, then parse the result.
2075 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2076 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2077 list ( $headers , $content ) = get_http_response ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2078 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2079 $t = unserialize ( $content );
2080 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2081 // Then we download the image and serve it to our client.
2082 list ( $headers , $content ) = get_http_response ( $imageurl , 10 );
2083 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2084 // Save image to cache.
2085 file_put_contents ( $cacheDir . '/' . $thumbname , $content );
2086 header ( 'Content-Type: image/jpeg' );
2093 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2095 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2096 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2097 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2098 list ( $headers , $content ) = get_http_response ( $url , 5 );
2099 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2100 // Extract the link to the thumbnail
2101 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $content , $matches );
2102 if (! empty ( $matches [ 1 ]))
2103 { // Let's download the image.
2104 $imageurl = $matches [ 1 ];
2105 // No control on image size, so wait long enough
2106 list ( $headers , $content ) = get_http_response ( $imageurl , 20 );
2107 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2108 $filepath = $cacheDir . '/' . $thumbname ;
2109 file_put_contents ( $filepath , $content ); // Save image to cache.
2110 if ( resizeImage ( $filepath ))
2112 header ( 'Content-Type: image/jpeg' );
2113 echo file_get_contents ( $filepath );
2121 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2123 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2124 // http://xkcd.com/327/
2125 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2126 list ( $headers , $content ) = get_http_response ( $url , 5 );
2127 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2128 // Extract the link to the thumbnail
2129 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $content , $matches );
2130 if (! empty ( $matches [ 1 ]))
2131 { // Let's download the image.
2132 $imageurl = $matches [ 1 ];
2133 // No control on image size, so wait long enough
2134 list ( $headers , $content ) = get_http_response ( $imageurl , 20 );
2135 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2136 $filepath = $cacheDir . '/' . $thumbname ;
2137 // Save image to cache.
2138 file_put_contents ( $filepath , $content );
2139 if ( resizeImage ( $filepath ))
2141 header ( 'Content-Type: image/jpeg' );
2142 echo file_get_contents ( $filepath );
2152 // For all other domains, we try to download the image and make a thumbnail.
2153 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2154 list ( $headers , $content ) = get_http_response ( $url , 30 );
2155 if ( strpos ( $headers [ 0 ], '200 OK' ) !== false ) {
2156 $filepath = $cacheDir . '/' . $thumbname ;
2157 // Save image to cache.
2158 file_put_contents ( $filepath , $content );
2159 if ( resizeImage ( $filepath ))
2161 header ( 'Content-Type: image/jpeg' );
2162 echo file_get_contents ( $filepath );
2169 // Otherwise, return an empty image (8x8 transparent gif)
2170 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2171 // Also put something in cache so that this URL is not requested twice.
2172 file_put_contents ( $cacheDir . '/' . $blankname , $blankgif );
2173 header ( 'Content-Type: image/gif' );
2177 // Make a thumbnail of the image (to width: 120 pixels)
2178 // Returns true if success, false otherwise.
2179 function resizeImage ( $filepath )
2181 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2183 // Trick: some stupid people rename GIF as JPEG... or else.
2184 // So we really try to open each image type whatever the extension is.
2185 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2187 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2188 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2189 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2190 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2193 $ystart = 0 ; $yheight = $h ;
2194 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2195 $nw = 120 ; // Desired width
2196 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2198 $im2 = imagecreatetruecolor ( $nw , $nh );
2199 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2200 imageinterlace ( $im2 , true ); // For progressive JPEG.
2201 $tempname = $filepath . '_TEMP.jpg' ;
2202 imagejpeg ( $im2 , $tempname , 90 );
2206 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2210 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2211 if ( isset ( $_SERVER [ 'QUERY_STRING' ]) && startsWith ( $_SERVER [ 'QUERY_STRING' ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2212 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) {
2213 $_SESSION [ 'LINKS_PER_PAGE' ] = $conf- > get ( 'config.LINKS_PER_PAGE' , 20 );