]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
2 // Shaarli 0.5.0 - Shaare your links...
3 // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net
4 // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
5 // Licence: http://www.opensource.org/licenses/zlib-license.php
7 // -----------------------------------------------------------------------------------------------
8 // NEVER TRUST IN PHP.INI
9 // Some hosts do not define a default timezone in php.ini,
10 // so we have to do this for avoid the strict standard error.
11 date_default_timezone_set ( 'UTC' );
13 // -----------------------------------------------------------------------------------------------
14 // Hardcoded parameter (These parameters can be overwritten by editing the file /data/config.php)
15 // You should not touch any code below (or at your own risks!)
16 $GLOBALS [ 'config' ][ 'DATADIR' ] = 'data' ; // Data subdirectory
17 $GLOBALS [ 'config' ][ 'CONFIG_FILE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/config.php' ; // Configuration file (user login/password)
18 $GLOBALS [ 'config' ][ 'DATASTORE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/datastore.php' ; // Data storage file.
19 $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ] = 20 ; // Default links per page.
20 $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/ipbans.php' ; // File storage for failures and bans.
21 $GLOBALS [ 'config' ][ 'BAN_AFTER' ] = 4 ; // Ban IP after this many failures.
22 $GLOBALS [ 'config' ][ 'BAN_DURATION' ] = 1800 ; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
23 $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ] = false ; // If true, anyone can add/edit/delete links without having to login
24 $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] = false ; // If true, the moment when links were saved are not shown to users that are not logged in.
25 $GLOBALS [ 'config' ][ 'SHOW_ATOM' ] = false ; // If true, an extra "ATOM feed" button will be displayed in the toolbar
26 $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ] = true ; // Enable thumbnails in links.
27 $GLOBALS [ 'config' ][ 'CACHEDIR' ] = 'cache' ; // Cache directory for thumbnails for SLOW services (like flickr)
28 $GLOBALS [ 'config' ][ 'PAGECACHE' ] = 'pagecache' ; // Page cache directory.
29 $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ] = true ; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage.
30 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
31 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
32 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
33 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
34 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
35 // Note: You must have publisher.php in the same directory as Shaarli index.php
36 $GLOBALS [ 'config' ][ 'ARCHIVE_ORG' ] = false ; // For each link, add a link to an archived version on archive.org
37 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ] = true ; // Enable RSS permalinks by default. This corresponds to the default behavior of shaarli before this was added as an option.
38 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = false ;
39 // -----------------------------------------------------------------------------------------------
40 define ( 'shaarli_version' , '0.5.0' );
41 // http://server.com/x/shaarli --> /shaarli/
42 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
44 // Force cookie path (but do not change lifetime)
45 $cookie = session_get_cookie_params ();
46 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
47 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set default cookie expiration and path.
49 // Set session parameters on server side.
50 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
51 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
52 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL).
53 ini_set ( 'session.use_trans_sid' , false ); // Prevent PHP form using sessionID in URL if cookies are disabled.
54 session_name ( 'shaarli' );
55 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
58 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
59 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
60 ini_set ( 'post_max_size' , '16M' );
61 ini_set ( 'upload_max_filesize' , '16M' );
62 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
63 //error_reporting(-1); // See all errors (for debugging only)
66 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
67 require_once $GLOBALS [ 'config' ][ 'CONFIG_FILE' ];
71 require_once 'application/LinkDB.php' ;
72 require_once 'application/TimeZone.php' ;
73 require_once 'application/Utils.php' ;
74 require_once 'application/Config.php' ;
76 // Ensure the PHP version is supported
78 checkPHPVersion ( '5.3' , PHP_VERSION
);
79 } catch ( Exception
$e ) {
80 header ( 'Content-Type: text/plain; charset=utf-8' );
81 echo $e- > getMessage ();
85 include "inc/rain.tpl.class.php" ; //include Rain TPL
86 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
87 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
89 ob_start (); // Output buffering for the page cache.
92 // In case stupid admin has left magic_quotes enabled in php.ini:
93 if ( get_magic_quotes_gpc ())
95 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
96 $_POST = array_map ( 'stripslashes_deep' , $_POST );
97 $_GET = array_map ( 'stripslashes_deep' , $_GET );
98 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
101 // Prevent caching on client side or proxy: (yes, it's ugly)
102 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
103 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
104 header ( "Cache-Control: post-check=0, pre-check=0" , false );
105 header ( "Pragma: no-cache" );
107 // Directories creations (Note that your web host may require different rights than 705.)
108 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
110 // Handling of old config file which do not have the new parameters.
111 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . escape ( indexUrl ());
112 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
113 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
114 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
115 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
116 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
117 // I really need to rewrite Shaarli with a proper configuation manager.
119 // Run config screen if first run:
120 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
124 $GLOBALS [ 'title' ] = ! empty ( $GLOBALS [ 'title' ]) ? escape ( $GLOBALS [ 'title' ]) : '' ;
125 $GLOBALS [ 'titleLink' ] = ! empty ( $GLOBALS [ 'titleLink' ]) ? escape ( $GLOBALS [ 'titleLink' ]) : '' ;
126 $GLOBALS [ 'redirector' ] = ! empty ( $GLOBALS [ 'redirector' ]) ? escape ( $GLOBALS [ 'redirector' ]) : '' ;
128 // a token depending of deployment salt, user password, and the current ip
129 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
131 autoLocale (); // Sniff browser language and set date format accordingly.
132 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
134 //==================================================================================================
135 // Checking session state (i.e. is the user still logged in)
136 //==================================================================================================
138 function setup_login_state () {
139 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
140 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
141 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
142 $userIsLoggedIn = true ;
144 if (! isset ( $GLOBALS [ 'login' ])) {
145 $userIsLoggedIn = false ; // Shaarli is not configured yet.
146 $loginFailure = true ;
148 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
149 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
153 $userIsLoggedIn = true ;
155 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
156 if ( empty ( $_SESSION [ 'uid' ]) ||
157 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
158 time () >= $_SESSION [ 'expires_on' ])
161 $userIsLoggedIn = false ;
162 $loginFailure = true ;
164 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
165 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
168 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
170 if (! $loginFailure ) {
171 $userIsLoggedIn = true ;
174 return $userIsLoggedIn ;
176 $userIsLoggedIn = setup_login_state ();
178 // Checks if an update is available for Shaarli.
179 // (at most once a day, and only for registered user.)
180 // Output: '' = no new version.
181 // other= the available version.
182 function checkUpdate ()
184 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
185 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
187 // Get latest version number at most once a day.
188 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
190 $version = shaarli_version
;
191 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
192 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
193 // If failed, never mind. We don't want to bother the user with that.
194 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
197 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
198 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
203 // -----------------------------------------------------------------------------------------------
204 // Simple cache system (mainly for the RSS/ATOM feeds).
208 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
209 private $shouldBeCached ; // boolean: Should this url be cached?
210 private $filename ; // Name of the cache file for this url.
213 $url = URL (typically the value returned by pageUrl())
214 $shouldBeCached = boolean. If false, the cache will be disabled.
216 public function __construct ( $url , $shouldBeCached )
219 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
220 $this- > shouldBeCached
= $shouldBeCached ;
223 // If the page should be cached and a cached version exists,
224 // returns the cached version (otherwise, return null).
225 public function cachedVersion ()
227 if (! $this- > shouldBeCached
) return null ;
228 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
232 // Put a page in the cache.
233 public function cache ( $page )
235 if (! $this- > shouldBeCached
) return ;
236 file_put_contents ( $this- > filename
, $page );
239 // Purge the whole cache.
240 // (call with pageCache::purgeCache())
241 public static function purgeCache ()
243 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
245 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
246 if ( $handler !== false )
248 while (( $filename = readdir ( $handler ))!== false )
250 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
260 // -----------------------------------------------------------------------------------------------
262 function logm ( $message )
264 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
265 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
268 // In a string, converts URLs to clickable links.
269 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
270 function text2clickable ( $url )
272 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
273 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
276 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
277 // even in the absence of <pre> (This is used in description to keep text formatting)
278 function keepMultipleSpaces ( $text )
280 return str_replace ( ' ' , ' ' , $text );
283 // ------------------------------------------------------------------------------------------
284 // Sniff browser language to display dates in the right format automatically.
285 // (Note that is may not work on your server if the corresponding local is not installed.)
286 function autoLocale ()
288 $attempts = array ( 'en_US' ); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
289 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
290 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
291 if ( preg_match ( '/([a-z] {2} )-?([a-z] {2} )?/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) {
292 $loc = $matches [ 1 ] . (! empty ( $matches [ 2 ]) ? '_' . strtoupper ( $matches [ 2 ]) : '' );
293 $attempts = array ( $loc . '.UTF-8' , $loc , str_replace ( '_' , '-' , $loc ). '.UTF-8' , str_replace ( '_' , '-' , $loc ),
294 $loc . '_' . strtoupper ( $loc ). '.UTF-8' , $loc . '_' . strtoupper ( $loc ),
295 $loc . '_' . $loc . '.UTF-8' , $loc . '_' . $loc , $loc . '-' . strtoupper ( $loc ). '.UTF-8' ,
296 $loc . '-' . strtoupper ( $loc ), $loc . '-' . $loc . '.UTF-8' , $loc . '-' . $loc );
299 setlocale ( LC_TIME
, $attempts ); // LC_TIME = Set local for date/time format only.
302 // ------------------------------------------------------------------------------------------
303 // PubSubHubbub protocol support (if enabled) [UNTESTED]
304 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
305 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
308 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
310 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
312 indexUrl (). '?do=atom' ,
315 $p- > publish_update ( $topic_url );
319 // ------------------------------------------------------------------------------------------
320 // Session management
322 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
325 $ip = $_SERVER [ "REMOTE_ADDR" ];
326 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
327 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
328 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
332 function fillSessionInfo () {
333 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
334 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
335 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
336 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
339 // Check that user/password is correct.
340 function check_auth ( $login , $password )
342 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
343 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
344 { // Login/password is correct.
346 logm ( 'Login successful' );
349 logm ( 'Login failed for user ' . $login );
353 // Returns true if the user is logged in.
354 function isLoggedIn ()
356 global $userIsLoggedIn ;
357 return $userIsLoggedIn ;
362 if ( isset ( $_SESSION )) {
363 unset ( $_SESSION [ 'uid' ]);
364 unset ( $_SESSION [ 'ip' ]);
365 unset ( $_SESSION [ 'username' ]);
366 unset ( $_SESSION [ 'privateonly' ]);
368 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
372 // ------------------------------------------------------------------------------------------
373 // Brute force protection system
374 // Several consecutive failed logins will ban the IP address for 30 minutes.
375 if (! is_file ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ])) file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( array ( 'FAILURES' => array (), 'BANS' => array ()), true ). "; \n ?>" );
376 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
377 // Signal a failed login. Will ban the IP if too many failures:
378 function ban_loginFailed ()
380 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
381 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
382 $gb [ 'FAILURES' ][ $ip ] ++
;
383 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
385 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
386 logm ( 'IP address banned from login' );
388 $GLOBALS [ 'IPBANS' ] = $gb ;
389 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
392 // Signals a successful login. Resets failed login counter.
393 function ban_loginOk ()
395 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
396 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
397 $GLOBALS [ 'IPBANS' ] = $gb ;
398 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
401 // Checks if the user CAN login. If 'true', the user can try to login.
402 function ban_canLogin ()
404 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
405 if ( isset ( $gb [ 'BANS' ][ $ip ]))
407 // User is banned. Check if the ban has expired:
408 if ( $gb [ 'BANS' ][ $ip ]<= time ())
409 { // Ban expired, user can try to login again.
411 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
412 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
413 return true ; // Ban has expired, user can login.
415 return false ; // User is banned.
417 return true ; // User is not banned.
420 // ------------------------------------------------------------------------------------------
421 // Process login form: Check if login/password is correct.
422 if ( isset ( $_POST [ 'login' ]))
424 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
425 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
426 { // Login/password is OK.
428 // If user wants to keep the session cookie even after the browser closes:
429 if (! empty ( $_POST [ 'longlastingsession' ]))
431 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
432 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
433 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
435 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
436 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
437 // Note: Never forget the trailing slash on the cookie path!
438 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
440 else // Standard session expiration (=when browser closes)
442 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
443 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
444 session_regenerate_id ( true );
446 // Optional redirect after login:
447 if ( isset ( $_GET [ 'post' ])) { header ( 'Location: ?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' ]): '' )); exit ; }
448 if ( isset ( $_POST [ 'returnurl' ]))
450 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
451 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
453 header ( 'Location: ?' ); exit ;
459 if ( isset ( $_GET [ 'post' ])) { $redir
= '&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' ]): '' ); }
460 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
465 // ------------------------------------------------------------------------------------------
466 // Misc utility functions:
468 // Returns the server URL (including port and http/https), without path.
469 // e.g. "http://myserver.com:8080"
470 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
473 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
474 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
475 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
478 // Returns the absolute URL of current script, without the query.
479 // (e.g. http://sebsauvage.net/links/)
482 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
483 // If the script is named 'index.php', we remove it (for better looking URLs,
484 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
485 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
486 return serverUrl () . $scriptname ;
489 // Returns the absolute URL of current script, WITH the query.
490 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
493 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
496 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
497 function return_bytes ( $val )
499 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
502 case 'g' : $val *= 1024 ;
503 case 'm' : $val *= 1024 ;
504 case 'k' : $val *= 1024 ;
509 // Try to determine max file size for uploads (POST).
510 // Returns an integer (in bytes)
511 function getMaxFileSize ()
513 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
514 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
515 // Return the smaller of two:
516 $maxsize = min ( $size1 , $size2 );
517 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
521 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
522 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
523 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
524 function linkdate2timestamp ( $linkdate )
526 if ( strcmp ( $linkdate , '_000000' ) !== 0 || ! $linkdate ){
528 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
529 return mktime ( $h , $m , $s , $M , $D , $Y );
534 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
535 (used to build the pubDate attribute in RSS feed.) */
536 function linkdate2rfc822 ( $linkdate )
538 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
541 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
542 (used to build the updated tags in ATOM feed.) */
543 function linkdate2iso8601 ( $linkdate )
545 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
548 // Parse HTTP response headers and return an associative array.
549 function http_parse_headers_shaarli ( $headers )
552 foreach ( $headers as $header )
554 $i = strpos ( $header , ': ' );
557 $key = substr ( $header , 0 , $i );
558 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
566 Input: $url : URL to get (http://...)
567 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
568 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
569 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
571 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
572 if (strpos($httpstatus,'200 OK')!==false)
573 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
575 echo 'There was an error: '.htmlspecialchars($httpstatus)
577 function getHTTP ( $url , $timeout = 30 )
581 $options = array ( 'http' => array ( 'method' => 'GET' , 'timeout' => $timeout , 'user_agent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0' )); // Force network timeout
582 $context = stream_context_create ( $options );
583 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
584 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
585 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
586 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
587 return array ( $httpStatus , $responseHeaders , $data );
589 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
591 return array ( $e- > getMessage (), '' , '' );
595 // Extract title from an HTML document.
596 // (Returns an empty string if not found.)
597 function html_extract_title ( $html )
599 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
602 // ------------------------------------------------------------------------------------------
603 // Token management for XSRF protection
604 // Token should be used in any form which acts on data (create,update,delete,import...).
605 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
610 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
611 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
615 // Tells if a token is OK. Using this function will destroy the token.
617 function tokenOk ( $token )
619 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
621 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
622 return true ; // Token is OK.
624 return false ; // Wrong token, or already used.
627 // ------------------------------------------------------------------------------------------
628 /* This class is in charge of building the final page.
629 (This is basically a wrapper around RainTPL which pre-fills some fields.)
631 p.assign('myfield','myvalue');
632 p.renderPage('mytemplate');
637 private $tpl ; // RainTPL template
639 function __construct ()
644 private function initialize ()
646 $this- > tpl
= new RainTPL
;
647 $this- > tpl
-> assign ( 'newversion' , escape ( checkUpdate ()));
648 $this- > tpl
-> assign ( 'feedurl' , escape ( indexUrl ()));
649 $searchcrits = '' ; // Search criteria
650 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
651 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
652 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
653 $this- > tpl
-> assign ( 'source' , indexUrl ());
654 $this- > tpl
-> assign ( 'version' , shaarli_version
);
655 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
656 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
657 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
658 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
659 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
660 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
661 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
665 // The following assign() method is basically the same as RainTPL (except that it's lazy)
666 public function assign ( $what , $where )
668 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
669 $this- > tpl
-> assign ( $what , $where );
672 // Render a specific page (using a template).
673 // e.g. pb.renderPage('picwall')
674 public function renderPage ( $page )
676 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
677 $this- > tpl
-> draw ( $page );
681 // ------------------------------------------------------------------------------------------
682 // Output the last N links in RSS 2.0 format.
685 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
687 // $usepermalink : If true, use permalink instead of final link.
688 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
689 // Also enabled through a config option
690 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
693 $query = $_SERVER [ "QUERY_STRING" ];
694 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
695 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
697 // If cached was not found (or not usable), then read the database and build the response:
698 $LINKSDB = new LinkDB (
699 $GLOBALS [ 'config' ][ 'DATASTORE' ],
700 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
701 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
703 // Read links from database (and filter private links if user it not logged in).
705 // Optionally filter the results:
706 $linksToDisplay = array ();
707 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
708 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
709 else $linksToDisplay = $LINKSDB ;
711 $nblinksToDisplay = 50 ; // Number of links to display.
712 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
714 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
717 $pageaddr = escape ( indexUrl ());
718 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
719 echo '<channel><title>' . $GLOBALS [ 'title' ]. '</title><link>' . $pageaddr . '</link>' ;
720 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
721 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
723 echo '<!-- PubSubHubbub Discovery -->' ;
724 echo '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
725 echo '<link rel="self" href="' . $pageaddr . '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
726 echo '<!-- End Of PubSubHubbub Discovery -->' ;
729 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
730 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
732 $link = $linksToDisplay [ $keys [ $i ]];
733 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
734 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
735 $absurl = $link [ 'url' ];
736 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
737 if ( $usepermalinks === true )
738 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
740 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
741 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . escape ( $rfc822date ). "</pubDate> \n " ;
742 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
744 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . $pageaddr
. '">' . $tag
. '</category>' . " \n " ; }
747 // Add permalink in description
748 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
749 // If user wants permalinks first, put the final link in description
750 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
751 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
752 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
755 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
757 $cache- > cache ( ob_get_contents ());
762 // ------------------------------------------------------------------------------------------
763 // Output the last N links in ATOM format.
766 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
768 // $usepermalink : If true, use permalink instead of final link.
769 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
770 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
773 $query = $_SERVER [ "QUERY_STRING" ];
774 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
775 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
776 // If cached was not found (or not usable), then read the database and build the response:
778 // Read links from database (and filter private links if used it not logged in).
779 $LINKSDB = new LinkDB (
780 $GLOBALS [ 'config' ][ 'DATASTORE' ],
781 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
782 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
785 // Optionally filter the results:
786 $linksToDisplay = array ();
787 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
788 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
789 else $linksToDisplay = $LINKSDB ;
791 $nblinksToDisplay = 50 ; // Number of links to display.
792 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
794 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
797 $pageaddr = escape ( indexUrl ());
801 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
802 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
804 $link = $linksToDisplay [ $keys [ $i ]];
805 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
806 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
807 $latestDate = max ( $latestDate , $iso8601date );
808 $absurl = $link [ 'url' ];
809 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
810 $entries .= '<entry><title>' . $link [ 'title' ]. '</title>' ;
811 if ( $usepermalinks === true )
812 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
814 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
815 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . escape ( $iso8601date ). '</updated>' ;
817 // Add permalink in description
818 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
819 // If user wants permalinks first, put the final link in description
820 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
821 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
823 $entries .= '<content type="html"><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . "]]></content> \n " ;
824 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
826 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
827 { $entries
.= '<category scheme="' . $pageaddr
. '" term="' . $tag
. '" />' . " \n " ; }
829 $entries .= "</entry> \n " ;
832 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
833 $feed .= '<title>' . $GLOBALS [ 'title' ]. '</title>' ;
834 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . escape ( $latestDate ). '</updated>' ;
835 $feed .= '<link rel="self" href="' . escape ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
836 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
838 $feed .= '<!-- PubSubHubbub Discovery -->' ;
839 $feed .= '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
840 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
842 $feed .= '<author><name>' . $pageaddr . '</name><uri>' . $pageaddr . '</uri></author>' ;
843 $feed .= '<id>' . $pageaddr . '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
845 $feed .= '</feed><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
848 $cache- > cache ( ob_get_contents ());
853 // ------------------------------------------------------------------------------------------
854 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
855 // Gives the last 7 days (which have links).
856 // This RSS feed cannot be filtered.
857 function showDailyRSS () {
859 $query = $_SERVER [ "QUERY_STRING" ];
860 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
861 $cached = $cache- > cachedVersion ();
862 if (! empty ( $cached )) {
867 // If cached was not found (or not usable), then read the database and build the response:
868 // Read links from database (and filter private links if used it not logged in).
869 $LINKSDB = new LinkDB (
870 $GLOBALS [ 'config' ][ 'DATASTORE' ],
871 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
872 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
875 /* Some Shaarlies may have very few links, so we need to look
876 back in time (rsort()) until we have enough days ($nb_of_days).
878 $linkdates = array ();
879 foreach ( $LINKSDB as $linkdate => $value ) {
880 $linkdates [] = $linkdate ;
883 $nb_of_days = 7 ; // We take 7 days.
884 $today = Date ( 'Ymd' );
887 foreach ( $linkdates as $linkdate ) {
888 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
889 if ( strcmp ( $day , $today ) < 0 ) {
890 if ( empty ( $days [ $day ])) {
891 $days [ $day ] = array ();
893 $days [ $day ][] = $linkdate ;
896 if ( count ( $days ) > $nb_of_days ) {
897 break ; // Have we collected enough days?
901 // Build the RSS feed.
902 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
903 $pageaddr = escape ( indexUrl ());
904 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
906 echo '<title>Daily - ' . $GLOBALS [ 'title' ] . '</title>' ;
907 echo '<link>' . $pageaddr . '</link>' ;
908 echo '<description>Daily shared links</description>' ;
909 echo '<language>en-en</language>' ;
910 echo '<copyright>' . $pageaddr . '</copyright>' . PHP_EOL
;
913 foreach ( $days as $day => $linkdates ) {
914 $daydate = linkdate2timestamp ( $day . '_000000' ); // Full text date
915 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
916 $absurl = escape ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
918 // Build the HTML body of this RSS entry.
923 // We pre-format some fields for proper output.
924 foreach ( $linkdates as $linkdate ) {
925 $l = $LINKSDB [ $linkdate ];
926 $l [ 'formatedDescription' ] = nl2br ( keepMultipleSpaces ( text2clickable ( $l [ 'description' ])));
927 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
928 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
929 if ( startsWith ( $l [ 'url' ], '?' )) {
930 $l [ 'url' ] = indexUrl () . $l [ 'url' ]; // make permalink URL absolute
932 $links [ $linkdate ] = $l ;
935 // Then build the HTML for this day:
937 $tpl- > assign ( 'title' , $GLOBALS [ 'title' ]);
938 $tpl- > assign ( 'daydate' , $daydate );
939 $tpl- > assign ( 'absurl' , $absurl );
940 $tpl- > assign ( 'links' , $links );
941 $tpl- > assign ( 'rfc822date' , escape ( $rfc822date ));
942 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
944 echo $html . PHP_EOL
;
946 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()) . ' -->' ;
948 $cache- > cache ( ob_get_contents ());
956 $LINKSDB = new LinkDB (
957 $GLOBALS [ 'config' ][ 'DATASTORE' ],
958 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
959 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
962 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
963 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
965 $days = $LINKSDB- > days ();
966 $i = array_search ( $day , $days );
967 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
972 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
973 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
977 $linksToDisplay = $LINKSDB- > filterDay ( $day );
978 } catch ( Exception
$exc ) {
980 $linksToDisplay = array ();
983 // We pre-format some fields for proper output.
984 foreach ( $linksToDisplay as $key => $link )
987 $taglist = explode ( ' ' , $link [ 'tags' ]);
988 uasort ( $taglist , 'strcasecmp' );
989 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
990 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
991 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
992 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
995 /* We need to spread the articles on 3 columns.
996 I did not want to use a JavaScript lib like http://masonry.desandro.com/
997 so I manually spread entries with a simple method: I roughly evaluate the
998 height of a div according to title and description length.
1000 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1001 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1002 foreach ( $linksToDisplay as $key => $link )
1004 // Roughly estimate length of entry (by counting characters)
1005 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1006 // Description: 836 characters gives roughly 342 pixel height.
1007 // This is not perfect, but it's usually OK.
1008 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1009 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1010 // Then put in column which is the less filled:
1011 $smallest = min ( $fill ); // find smallest value in array.
1012 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1013 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1014 $fill [ $index ] +
= $length ;
1016 $PAGE = new pageBuilder
;
1017 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1018 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1019 $PAGE- > assign ( 'cols' , $columns );
1020 $PAGE- > assign ( 'day' , linkdate2timestamp ( $day . '_000000' ));
1021 $PAGE- > assign ( 'previousday' , $previousday );
1022 $PAGE- > assign ( 'nextday' , $nextday );
1023 $PAGE- > renderPage ( 'daily' );
1028 // ------------------------------------------------------------------------------------------
1029 // Render HTML page (according to URL parameters and user rights)
1030 function renderPage ()
1032 $LINKSDB = new LinkDB (
1033 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1034 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1035 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1038 // -------- Display login form.
1039 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1041 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1042 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1043 $PAGE = new pageBuilder
;
1044 $PAGE- > assign ( 'token' , $token );
1045 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
1046 $PAGE- > renderPage ( 'loginform' );
1049 // -------- User wants to logout.
1050 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1054 header ( 'Location: ?' );
1058 // -------- Picture wall
1059 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1061 // Optionally filter the results:
1063 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1064 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1065 else $links = $LINKSDB ;
1068 $linksToDisplay = array ();
1070 // Get only links which have a thumbnail.
1071 foreach ( $links as $link )
1073 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
1074 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1075 if ( $thumb != '' ) // Only output links which have a thumbnail.
1077 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1078 $linksToDisplay []= $link ; // Add to array.
1082 $PAGE = new pageBuilder
;
1083 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1084 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1085 $PAGE- > renderPage ( 'picwall' );
1089 // -------- Tag cloud
1090 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1092 $tags = $LINKSDB- > allTags ();
1094 // We sort tags alphabetically, then choose a font size according to count.
1095 // First, find max value.
1096 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1099 foreach ( $tags as $key => $value )
1100 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1102 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1104 $PAGE = new pageBuilder
;
1105 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1106 $PAGE- > assign ( 'tags' , $tagList );
1107 $PAGE- > renderPage ( 'tagcloud' );
1111 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1112 if ( isset ( $_GET [ 'addtag' ]))
1114 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1115 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1116 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1118 // Prevent redirection loop
1119 if ( isset ( $params [ 'addtag' ])) {
1120 unset ( $params [ 'addtag' ]);
1123 // Check if this tag is already in the search query and ignore it if it is.
1124 // Each tag is always separated by a space
1125 if ( isset ( $params [ 'searchtags' ])) {
1126 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1128 $current_tags = array ();
1131 foreach ( $current_tags as $value ) {
1132 if ( $value === $_GET [ 'addtag' ]) {
1137 // Append the tag if necessary
1138 if ( empty ( $params [ 'searchtags' ])) {
1139 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1142 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1145 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1146 header ( 'Location: ?' . http_build_query ( $params ));
1150 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1151 if ( isset ( $_GET [ 'removetag' ])) {
1152 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1153 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) {
1154 header ( 'Location: ?' );
1158 // In case browser does not send HTTP_REFERER
1159 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1161 // Prevent redirection loop
1162 if ( isset ( $params [ 'removetag' ])) {
1163 unset ( $params [ 'removetag' ]);
1166 if ( isset ( $params [ 'searchtags' ])) {
1167 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1168 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1169 if ( count ( $tags )== 0 ) {
1170 unset ( $params [ 'searchtags' ]);
1172 $params [ 'searchtags' ] = implode ( ' ' , $tags );
1174 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1176 header ( 'Location: ?' . http_build_query ( $params ));
1180 // -------- User wants to change the number of links per page (linksperpage=...)
1181 if ( isset ( $_GET [ 'linksperpage' ])) {
1182 if ( is_numeric ( $_GET [ 'linksperpage' ])) {
1183 $_SESSION [ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET [ 'linksperpage' ]));
1186 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'linksperpage' )));
1190 // -------- User wants to see only private links (toggle)
1191 if ( isset ( $_GET [ 'privateonly' ])) {
1192 if ( empty ( $_SESSION [ 'privateonly' ])) {
1193 $_SESSION [ 'privateonly' ] = 1 ; // See only private links
1195 unset ( $_SESSION [ 'privateonly' ]); // See all links
1198 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'privateonly' )));
1202 // -------- Handle other actions allowed for non-logged in users:
1205 // User tries to post new link but is not logged in:
1206 // Show login screen, then redirect to ?post=...
1207 if ( isset ( $_GET [ 'post' ]))
1209 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.
1213 // Same case as above except that user tried to access ?do=addlink without being logged in
1214 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1215 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1216 header ( 'Location: ?do=login&post=' );
1220 $PAGE = new pageBuilder
;
1221 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1222 $PAGE- > renderPage ( 'linklist' );
1223 exit ; // Never remove this one! All operations below are reserved for logged in user.
1226 // -------- All other functions are reserved for the registered user:
1228 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1229 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1231 $PAGE = new pageBuilder
;
1232 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1233 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1234 $PAGE- > renderPage ( 'tools' );
1238 // -------- User wants to change his/her password.
1239 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1241 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1242 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1244 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1246 // Make sure old password is correct.
1247 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1248 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1249 // Save new password
1250 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1251 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1253 writeConfig ( $GLOBALS , isLoggedIn ());
1255 catch ( Exception
$e ) {
1257 'ERROR while writing config file after changing password.' . PHP_EOL
.
1261 // TODO: do not handle exceptions/errors in JS.
1262 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1265 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1268 else // show the change password form.
1270 $PAGE = new pageBuilder
;
1271 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1272 $PAGE- > assign ( 'token' , getToken ());
1273 $PAGE- > renderPage ( 'changepassword' );
1278 // -------- User wants to change configuration
1279 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1281 if (! empty ( $_POST [ 'title' ]) )
1283 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1285 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1286 if ( isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1287 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1288 $GLOBALS [ 'timezone' ] = $tz ;
1289 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1290 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1291 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1292 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1293 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1294 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1295 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1296 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'hidePublicLinks' ]);
1298 writeConfig ( $GLOBALS , isLoggedIn ());
1300 catch ( Exception
$e ) {
1302 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1306 // TODO: do not handle exceptions/errors in JS.
1307 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1310 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1313 else // Show the configuration form.
1315 $PAGE = new pageBuilder
;
1316 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1317 $PAGE- > assign ( 'token' , getToken ());
1318 $PAGE- > assign ( 'title' , empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] );
1319 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] );
1320 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ( $GLOBALS [ 'timezone' ]);
1321 $PAGE- > assign ( 'timezone_form' , $timezone_form );
1322 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1323 $PAGE- > renderPage ( 'configure' );
1328 // -------- User wants to rename a tag or delete it
1329 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1331 if ( empty ( $_POST [ 'fromtag' ]))
1333 $PAGE = new pageBuilder
;
1334 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1335 $PAGE- > assign ( 'token' , getToken ());
1336 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1337 $PAGE- > renderPage ( 'changetag' );
1340 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1343 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1345 $needle = trim ( $_POST [ 'fromtag' ]);
1346 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1347 foreach ( $linksToAlter as $key => $value )
1349 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1350 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1351 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1352 $LINKSDB [ $key ]= $value ;
1354 $LINKSDB- > savedb (); // Save to disk.
1355 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1360 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1362 $needle = trim ( $_POST [ 'fromtag' ]);
1363 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1364 foreach ( $linksToAlter as $key => $value )
1366 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1367 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1368 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1369 $LINKSDB [ $key ]= $value ;
1371 $LINKSDB- > savedb (); // Save to disk.
1372 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1377 // -------- User wants to add a link without using the bookmarklet: Show form.
1378 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1380 $PAGE = new pageBuilder
;
1381 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1382 $PAGE- > renderPage ( 'addlink' );
1386 // -------- User clicked the "Save" button when editing a link: Save link to database.
1387 if ( isset ( $_POST [ 'save_edit' ]))
1389 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1390 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1391 $tags = implode ( ' ' , array_unique ( explode ( ' ' , $tags ))); // Remove duplicates.
1392 $linkdate = $_POST [ 'lf_linkdate' ];
1393 $url = trim ( $_POST [ 'lf_url' ]);
1394 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1395 $url = 'http://' . $url ;
1396 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1397 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1398 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1399 $LINKSDB [ $linkdate ] = $link ;
1400 $LINKSDB- > savedb (); // Save to disk.
1403 // If we are called from the bookmarklet, we must close the popup:
1404 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1405 $returnurl = ( ! empty ( $_POST [ 'returnurl' ]) ? escape ( $_POST [ 'returnurl' ]) : '?' );
1406 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1407 $location = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1408 header ( 'Location: ' . $location ); // After saving the link, redirect to the page the user was on.
1412 // -------- User clicked the "Cancel" button when editing a link.
1413 if ( isset ( $_POST [ 'cancel_edit' ]))
1415 // If we are called from the bookmarklet, we must close the popup:
1416 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1417 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1418 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1419 $returnurl = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1420 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1424 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1425 if ( isset ( $_POST [ 'delete_link' ]))
1427 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1428 // We do not need to ask for confirmation:
1429 // - confirmation is handled by JavaScript
1430 // - we are protected from XSRF by the token.
1431 $linkdate = $_POST [ 'lf_linkdate' ];
1432 unset ( $LINKSDB [ $linkdate ]);
1433 $LINKSDB- > savedb (); // save to disk
1435 // If we are called from the bookmarklet, we must close the popup:
1436 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1437 // Pick where we're going to redirect
1438 // =============================================================
1439 // Basically, we can't redirect to where we were previously if it was a permalink
1440 // or an edit_link, because it would 404.
1442 // - / : nothing in $_GET, redirect to self
1443 // - /?page : redirect to self
1444 // - /?searchterm : redirect to self (there might be other links)
1445 // - /?searchtags : redirect to self
1446 // - /permalink : redirect to / (the link does not exist anymore)
1447 // - /?edit_link : redirect to / (the link does not exist anymore)
1448 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1449 // redirect is not satisfied, and only then redirect to /
1452 if ( count ( $_GET ) == 0
1453 || isset ( $_GET [ 'page' ])
1454 || isset ( $_GET [ 'searchterm' ])
1455 || isset ( $_GET [ 'searchtags' ])
1457 if ( isset ( $_POST [ 'returnurl' ])) {
1458 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1460 $location = generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'delete_link' ));
1464 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1468 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1469 if ( isset ( $_GET [ 'edit_link' ]))
1471 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1472 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1473 $PAGE = new pageBuilder
;
1474 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1475 $PAGE- > assign ( 'link' , $link );
1476 $PAGE- > assign ( 'link_is_new' , false );
1477 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1478 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ));
1479 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1480 $PAGE- > renderPage ( 'editlink' );
1484 // -------- User want to post a new link: Display link edit form.
1485 if ( isset ( $_GET [ 'post' ]))
1490 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1491 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' ,
1492 '/[ \? &]utm_campaign=[^&]*/' ,
1493 '/[ \? &]utm_medium=[^&]*/' ,
1494 '/#xtor=RSS-[^&]*/' ,
1496 '/[ \? &]__scoop[^&]*/' ,
1498 '/[ \? &]action_ref_map=[^&]*/' ,
1499 '/[ \? &]action_type_map=[^&]*/' ,
1500 '/[ \? &]action_object_map=[^&]*/' ,
1501 '/[ \? &]utm_content=[^&]*/' ,
1505 foreach ( $annoyingpatterns as $pattern )
1507 $url = preg_replace ( $pattern , "" , $url );
1510 $link_is_new = false ;
1511 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1514 $link_is_new = true ; // This is a new link
1515 $linkdate = strval ( date ( 'Ymd_His' ));
1516 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1517 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1518 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1519 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1520 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1521 // If this is an HTTP link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
1522 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1524 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1525 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1526 if ( strpos ( $status , '200 OK' )!== false )
1528 // Look for charset in html header.
1529 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1531 // If found, extract encoding.
1532 if (! empty ( $meta [ 0 ]))
1534 // Get encoding specified in header.
1535 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1536 // If charset not found, use utf-8.
1537 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1539 else { $html_charset
= 'utf-8' ; }
1542 $title = html_extract_title ( $data );
1545 // Re-encode title in utf-8 if necessary.
1546 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1550 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1552 $url = '?' . smallHash ( $linkdate );
1555 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1558 $PAGE = new pageBuilder
;
1559 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1560 $PAGE- > assign ( 'link' , $link );
1561 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1562 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1563 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1564 $PAGE- > assign ( 'source' ,( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ));
1565 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1566 $PAGE- > renderPage ( 'editlink' );
1570 // -------- Export as Netscape Bookmarks HTML file.
1571 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1573 if ( empty ( $_GET [ 'what' ]))
1575 $PAGE = new pageBuilder
;
1576 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1577 $PAGE- > renderPage ( 'export' );
1580 $exportWhat = $_GET [ 'what' ];
1581 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1583 header ( 'Content-Type: text/html; charset=utf-8' );
1584 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1585 $currentdate = date ( 'Y/m/d H:i:s' );
1587 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1588 <!-- This is an automatically generated file.
1589 It will be read and overwritten.
1591 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1592 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1593 <TITLE>Bookmarks</TITLE>
1596 foreach ( $LINKSDB as $link )
1598 if ( $exportWhat == 'all' ||
1599 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1600 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1602 echo '<DT><A HREF="' . $link [ 'url' ]. '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1603 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . str_replace ( ' ' , ',' , $link [ 'tags' ]). '"' ;
1604 echo '>' . $link [ 'title' ]. "</A> \n " ;
1605 if ( $link [ 'description' ]!= '' ) echo '<DD>' . $link [ 'description' ]. " \n " ;
1611 // -------- User is uploading a file for import
1612 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1614 // If file is too big, some form field may be missing.
1615 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1617 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1618 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>' ;
1621 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1626 // -------- Show upload/import dialog:
1627 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1629 $PAGE = new pageBuilder
;
1630 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1631 $PAGE- > assign ( 'token' , getToken ());
1632 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1633 $PAGE- > renderPage ( 'import' );
1637 // -------- Otherwise, simply display search form and links:
1638 $PAGE = new pageBuilder
;
1639 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1640 $PAGE- > renderPage ( 'linklist' );
1644 // -----------------------------------------------------------------------------------------------
1645 // Process the import file form.
1646 function importFile ()
1648 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1649 $LINKSDB = new LinkDB (
1650 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1651 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1652 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1654 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1655 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1656 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1657 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1658 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1663 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1665 // Then import the bookmarks.
1666 if ( $type == 'netscape' )
1668 // This is a standard Netscape-style bookmark file.
1669 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1670 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1672 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1673 $d = explode ( '<DD>' , $html );
1674 if ( startswith ( $d [ 0 ], '<A ' ))
1676 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1677 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1678 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1679 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1681 foreach ( $matches as $m )
1683 $attr = $m [ 1 ]; $value = $m [ 2 ];
1684 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1685 elseif ( $attr == 'ADD_DATE' )
1687 $raw_add_date = intval ( $value );
1688 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1690 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1691 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1693 if ( $link [ 'url' ]!= '' )
1695 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1696 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1698 { // Link not in database, let's import it...
1699 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1701 // Make sure date/time is not already used by another link.
1702 // (Some bookmark files have several different links with the same ADD_DATE)
1703 // We increment date by 1 second until we find a date which is not used in DB.
1704 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1705 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1706 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1707 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1710 else // Link already present in database.
1713 { // If overwrite is required, we import link data, except date/time.
1714 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1715 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1725 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1729 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1733 // -----------------------------------------------------------------------------------------------
1734 // Template for the list of links (<div id="linklist">)
1735 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1736 function buildLinkList ( $PAGE , $LINKSDB )
1738 // ---- Filter link database according to parameters
1739 $linksToDisplay = array ();
1742 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1744 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1745 $search_crits = escape ( trim ( $_GET [ 'searchterm' ]));
1746 $search_type = 'fulltext' ;
1748 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1750 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1751 $search_crits = explode ( ' ' , escape ( trim ( $_GET [ 'searchtags' ])));
1752 $search_type = 'tags' ;
1754 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1756 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1757 if ( count ( $linksToDisplay )== 0 )
1759 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1760 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1761 echo '<br>Would you mind <a href="?">clicking here</a>?' ;
1764 $search_type = 'permalink' ;
1767 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1770 // Option: Show only private links
1771 if (! empty ( $_SESSION [ 'privateonly' ]))
1774 foreach ( $linksToDisplay as $linkdate => $link )
1776 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1778 $linksToDisplay = $tmp ;
1781 // ---- Handle paging.
1782 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1783 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1784 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1786 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1788 // If there is only a single link, we change on-the-fly the title of the page.
1789 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1791 // Select articles according to paging.
1792 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1793 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1794 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1795 $page = ( $page < 1 ? 1 : $page );
1796 $page = ( $page > $pagecount ? $pagecount : $page );
1797 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1798 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1799 $linkDisp = array (); // Links to display
1800 while ( $i < $end && $i < count ( $keys ))
1802 $link = $linksToDisplay [ $keys [ $i ]];
1803 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
1804 $title = $link [ 'title' ];
1805 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1806 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1807 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1808 $taglist = explode ( ' ' , $link [ 'tags' ]);
1809 uasort ( $taglist , 'strcasecmp' );
1810 $link [ 'taglist' ]= $taglist ;
1812 if ( $link [ "url" ][ 0 ] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this.
1813 strlen ( $link [ "url" ]) === 7 ) {
1814 $link [ "url" ] = indexUrl () . $link [ "url" ];
1817 $linkDisp [ $keys [ $i ]] = $link ;
1821 // Compute paging navigation
1822 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1823 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1825 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1826 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1828 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1830 // Fill all template fields.
1831 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1832 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1833 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1834 $PAGE- > assign ( 'page_current' , $page );
1835 $PAGE- > assign ( 'page_max' , $pagecount );
1836 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1837 $PAGE- > assign ( 'search_type' , $search_type );
1838 $PAGE- > assign ( 'search_crits' , $search_crits );
1839 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1840 $PAGE- > assign ( 'token' , $token );
1841 $PAGE- > assign ( 'links' , $linkDisp );
1842 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1846 // Compute the thumbnail for a link.
1848 // With a link to the original URL.
1849 // Understands various services (youtube.com...)
1850 // Input: $url = URL for which the thumbnail must be found.
1851 // $href = if provided, this URL will be followed instead of $url
1852 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1853 // Some of them may be missing.
1854 // Return an empty array if no thumbnail available.
1855 function computeThumbnail ( $url , $href = false )
1857 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1858 if ( $href == false ) $href = $url ;
1860 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1861 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1862 // ^^^^^^^^^^^ ^^^^^^^^^^^
1863 $domain = parse_url ( $url , PHP_URL_HOST
);
1864 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1866 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1867 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1868 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1870 if ( $domain == 'youtu.be' ) // Youtube short links
1872 $path = parse_url ( $url , PHP_URL_PATH
);
1873 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1874 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1876 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1878 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1879 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1880 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1883 if ( $domain == 'imgur.com' )
1885 $path = parse_url ( $url , PHP_URL_PATH
);
1886 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1887 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1888 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1889 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1890 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1892 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1893 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1895 if ( $domain == 'i.imgur.com' )
1897 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1898 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1899 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1901 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1903 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1905 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1906 return array ( 'src' => $thumburl ,
1907 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1910 if ( endsWith ( $domain , '.imageshack.us' ))
1912 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1913 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1915 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1916 return array ( 'src' => $thumburl ,
1917 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1921 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1922 // So we deport the thumbnail generation in order not to slow down page generation
1923 // (and we also cache the thumbnail)
1925 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1927 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1928 || $domain == 'vimeo.com'
1929 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1930 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1933 if ( $domain == 'vimeo.com' )
1934 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1935 $path = parse_url ( $url , PHP_URL_PATH
);
1936 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1938 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1939 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1940 $path = parse_url ( $url , PHP_URL_PATH
);
1941 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1943 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1944 { // Make sure this TED URL points to a video (/talks/...)
1945 $path = parse_url ( $url , PHP_URL_PATH
);
1946 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1948 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1949 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1950 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1953 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1954 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1955 // But using the extension will do.
1956 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1957 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1959 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1960 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1961 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1963 return array (); // No thumbnail.
1968 // Returns the HTML code to display a thumbnail for a link
1969 // with a link to the original URL.
1970 // Understands various services (youtube.com...)
1971 // Input: $url = URL for which the thumbnail must be found.
1972 // $href = if provided, this URL will be followed instead of $url
1973 // Returns '' if no thumbnail available.
1974 function thumbnail ( $url , $href = false )
1976 $t = computeThumbnail ( $url , $href );
1977 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1979 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1980 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1981 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1982 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1983 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1988 // Returns the HTML code to display a thumbnail for a link
1989 // for the picture wall (using lazy image loading)
1990 // Understands various services (youtube.com...)
1991 // Input: $url = URL for which the thumbnail must be found.
1992 // $href = if provided, this URL will be followed instead of $url
1993 // Returns '' if no thumbnail available.
1994 function lazyThumbnail ( $url , $href = false )
1996 $t = computeThumbnail ( $url , $href );
1997 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1999 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
2002 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
2004 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2005 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2006 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2007 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2010 // No-JavaScript fallback.
2011 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
2012 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2013 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2014 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2015 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2016 $html .= '></noscript></a>' ;
2022 // -----------------------------------------------------------------------------------------------
2024 // This function should NEVER be called if the file data/config.php exists.
2027 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2028 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2031 // This part makes sure sessions works correctly.
2032 // (Because on some hosts, session.save_path may not be set correctly,
2033 // or we may not have write access to it.)
2034 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2035 { // Step 2: Check if data in session is correct.
2036 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2037 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2038 echo 'It currently points to ' . session_save_path (). '<br>' ;
2039 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>' ;
2040 echo '<br><a href="?">Click to try again.</a></pre>' ;
2043 if (! isset ( $_SESSION [ 'session_tested' ]))
2044 { // Step 1 : Try to store data in session and reload page.
2045 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2046 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2048 if ( isset ( $_GET [ 'test_session' ]))
2049 { // Step 3: Sessions are OK. Remove test parameter from URL.
2050 header ( 'Location: ' . indexUrl ());
2054 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2057 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])) {
2058 if ( isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])) {
2059 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2062 $GLOBALS [ 'timezone' ] = $tz ;
2063 // Everything is ok, let's create config file.
2064 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2065 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2066 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2067 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . escape ( indexUrl ()) : $_POST [ 'title' ] );
2068 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2070 writeConfig ( $GLOBALS , isLoggedIn ());
2072 catch ( Exception
$e ) {
2074 'ERROR while writing config file after installation.' . PHP_EOL
.
2078 // TODO: do not handle exceptions/errors in JS.
2079 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2082 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2086 // Display config form:
2087 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ();
2088 $timezone_html = '' ;
2089 if ( $timezone_form != '' ) {
2090 $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2093 $PAGE = new pageBuilder
;
2094 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2095 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2096 $PAGE- > renderPage ( 'install' );
2100 if (! function_exists ( 'json_encode' )) {
2101 function json_encode ( $data ) {
2102 switch ( $type = gettype ( $data )) {
2106 return ( $data ? 'true' : 'false' );
2112 return '"' . addslashes ( $data ) . '"' ;
2114 $data = get_object_vars ( $data );
2116 $output_index_count = 0 ;
2117 $output_indexed = array ();
2118 $output_associative = array ();
2119 foreach ( $data as $key => $value ) {
2120 $output_indexed [] = json_encode ( $value );
2121 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2122 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2123 $output_index_count = NULL ;
2126 if ( $output_index_count !== NULL ) {
2127 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2129 return ' {' . implode(',', $output_associative) . '} ' ;
2132 return '' ; // Not supported
2139 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2140 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2141 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2142 This function is called by passing the URL:
2143 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2144 [URL] is the URL of the link (e.g. a flickr page)
2145 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2146 The function below will fetch the image from the webservice and store it in the cache.
2148 function genThumbnail ()
2150 // Make sure the parameters in the URL were generated by us.
2151 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2152 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2154 // Let's see if we don't already have the image for this URL in the cache.
2155 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2156 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2157 { // We have the thumbnail, just serve it:
2158 header ( 'Content-Type: image/jpeg' );
2159 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2162 // We may also serve a blank image (if service did not respond)
2163 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2164 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2166 header ( 'Content-Type: image/gif' );
2167 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2171 // Otherwise, generate the thumbnail.
2172 $url = $_GET [ 'url' ];
2173 $domain = parse_url ( $url , PHP_URL_HOST
);
2175 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2177 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2178 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2180 // Is this a link to an image, or to a flickr page ?
2182 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2183 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2184 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2185 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2187 else // This is a flickr page (html)
2189 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2190 if ( strpos ( $httpstatus , '200 OK' )!== false )
2192 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2193 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2194 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2196 // In albums (and some other pages), the link rel="image_src" is not provided,
2197 // but flickr provides:
2198 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2201 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2202 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2208 { // Let's download the image.
2209 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2210 if ( strpos ( $httpstatus , '200 OK' )!== false )
2212 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2213 header ( 'Content-Type: image/jpeg' );
2220 elseif ( $domain == 'vimeo.com' )
2222 // This is more complex: we have to perform a HTTP request, then parse the result.
2223 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2224 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2225 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2226 if ( strpos ( $httpstatus , '200 OK' )!== false )
2228 $t = unserialize ( $data );
2229 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2230 // Then we download the image and serve it to our client.
2231 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2232 if ( strpos ( $httpstatus , '200 OK' )!== false )
2234 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2235 header ( 'Content-Type: image/jpeg' );
2242 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2244 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2245 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2246 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2247 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2248 if ( strpos ( $httpstatus , '200 OK' )!== false )
2250 // Extract the link to the thumbnail
2251 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2252 if (! empty ( $matches [ 1 ]))
2253 { // Let's download the image.
2254 $imageurl = $matches [ 1 ];
2255 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2256 if ( strpos ( $httpstatus , '200 OK' )!== false )
2258 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2259 file_put_contents ( $filepath , $data ); // Save image to cache.
2260 if ( resizeImage ( $filepath ))
2262 header ( 'Content-Type: image/jpeg' );
2263 echo file_get_contents ( $filepath );
2271 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2273 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2274 // http://xkcd.com/327/
2275 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2276 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2277 if ( strpos ( $httpstatus , '200 OK' )!== false )
2279 // Extract the link to the thumbnail
2280 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2281 if (! empty ( $matches [ 1 ]))
2282 { // Let's download the image.
2283 $imageurl = $matches [ 1 ];
2284 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2285 if ( strpos ( $httpstatus , '200 OK' )!== false )
2287 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2288 file_put_contents ( $filepath , $data ); // Save image to cache.
2289 if ( resizeImage ( $filepath ))
2291 header ( 'Content-Type: image/jpeg' );
2292 echo file_get_contents ( $filepath );
2302 // For all other domains, we try to download the image and make a thumbnail.
2303 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2304 if ( strpos ( $httpstatus , '200 OK' )!== false )
2306 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2307 file_put_contents ( $filepath , $data ); // Save image to cache.
2308 if ( resizeImage ( $filepath ))
2310 header ( 'Content-Type: image/jpeg' );
2311 echo file_get_contents ( $filepath );
2318 // Otherwise, return an empty image (8x8 transparent gif)
2319 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2320 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2321 header ( 'Content-Type: image/gif' );
2325 // Make a thumbnail of the image (to width: 120 pixels)
2326 // Returns true if success, false otherwise.
2327 function resizeImage ( $filepath )
2329 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2331 // Trick: some stupid people rename GIF as JPEG... or else.
2332 // So we really try to open each image type whatever the extension is.
2333 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2335 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2336 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2337 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2338 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2341 $ystart = 0 ; $yheight = $h ;
2342 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2343 $nw = 120 ; // Desired width
2344 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2346 $im2 = imagecreatetruecolor ( $nw , $nh );
2347 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2348 imageinterlace ( $im2 , true ); // For progressive JPEG.
2349 $tempname = $filepath . '_TEMP.jpg' ;
2350 imagejpeg ( $im2 , $tempname , 90 );
2354 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2358 // Invalidate caches when the database is changed or the user logs out.
2359 // (e.g. tags cache).
2360 function invalidateCaches ()
2362 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2363 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2367 mergeDeprecatedConfig ( $GLOBALS , isLoggedIn ());
2368 } catch ( Exception
$e ) {
2370 'ERROR while merging deprecated options.php file.' . PHP_EOL
.
2375 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2376 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2377 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2378 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2379 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2380 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];