]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
236fd4e27c7d588e1d24d6bd200f96a7bde3cb60
2 // Shaarli 0.0.45beta - 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
6 // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x)
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' , '0.0.45beta' );
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' );
63 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
64 //error_reporting(-1); // See all errors (for debugging only)
67 require_once 'application/LinkDB.php' ;
68 require_once 'application/Utils.php' ;
69 require_once 'application/Config.php' ;
71 include "inc/rain.tpl.class.php" ; //include Rain TPL
72 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
73 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
75 ob_start (); // Output buffering for the page cache.
78 // In case stupid admin has left magic_quotes enabled in php.ini:
79 if ( get_magic_quotes_gpc ())
81 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
82 $_POST = array_map ( 'stripslashes_deep' , $_POST );
83 $_GET = array_map ( 'stripslashes_deep' , $_GET );
84 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
87 // Prevent caching on client side or proxy: (yes, it's ugly)
88 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
89 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
90 header ( "Cache-Control: post-check=0, pre-check=0" , false );
91 header ( "Pragma: no-cache" );
93 // Directories creations (Note that your web host may require different rights than 705.)
94 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
96 // Handling of old config file which do not have the new parameters.
97 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . escape ( indexUrl ());
98 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
99 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
100 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
101 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
102 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
103 // I really need to rewrite Shaarli with a proper configuation manager.
105 // Run config screen if first run:
106 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
108 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
109 $GLOBALS [ 'title' ] = ! empty ( $GLOBALS [ 'title' ]) ? escape ( $GLOBALS [ 'title' ]) : '' ;
110 $GLOBALS [ 'titleLink' ] = ! empty ( $GLOBALS [ 'titleLink' ]) ? escape ( $GLOBALS [ 'titleLink' ]) : '' ;
111 $GLOBALS [ 'redirector' ] = ! empty ( $GLOBALS [ 'redirector' ]) ? escape ( $GLOBALS [ 'redirector' ]) : '' ;
113 // a token depending of deployment salt, user password, and the current ip
114 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
116 autoLocale (); // Sniff browser language and set date format accordingly.
117 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
119 //==================================================================================================
120 // Checking session state (i.e. is the user still logged in)
121 //==================================================================================================
123 function setup_login_state () {
124 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
125 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
126 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
127 $userIsLoggedIn = true ;
129 if (! isset ( $GLOBALS [ 'login' ])) {
130 $userIsLoggedIn = false ; // Shaarli is not configured yet.
131 $loginFailure = true ;
133 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
134 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
138 $userIsLoggedIn = true ;
140 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
141 if ( empty ( $_SESSION [ 'uid' ]) ||
142 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
143 time () >= $_SESSION [ 'expires_on' ])
146 $userIsLoggedIn = false ;
147 $loginFailure = true ;
149 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
150 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
153 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
155 if (! $loginFailure ) {
156 $userIsLoggedIn = true ;
159 return $userIsLoggedIn ;
161 //==================================================================================================
162 $userIsLoggedIn = setup_login_state ();
163 //==================================================================================================
164 //==================================================================================================
167 function checkphpversion ()
169 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
171 header ( 'Content-Type: text/plain; charset=utf-8' );
172 echo 'Your PHP version is obsolete! Shaarli requires at least php 5.1.0, and thus cannot run. Sorry. Your PHP version has known security vulnerabilities and should be updated as soon as possible.' ;
177 // Checks if an update is available for Shaarli.
178 // (at most once a day, and only for registered user.)
179 // Output: '' = no new version.
180 // other= the available version.
181 function checkUpdate ()
183 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
184 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
186 // Get latest version number at most once a day.
187 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
189 $version = shaarli_version
;
190 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
191 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
192 // If failed, never mind. We don't want to bother the user with that.
193 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
196 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
197 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
202 // -----------------------------------------------------------------------------------------------
203 // Simple cache system (mainly for the RSS/ATOM feeds).
207 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
208 private $shouldBeCached ; // boolean: Should this url be cached?
209 private $filename ; // Name of the cache file for this url.
212 $url = URL (typically the value returned by pageUrl())
213 $shouldBeCached = boolean. If false, the cache will be disabled.
215 public function __construct ( $url , $shouldBeCached )
218 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
219 $this- > shouldBeCached
= $shouldBeCached ;
222 // If the page should be cached and a cached version exists,
223 // returns the cached version (otherwise, return null).
224 public function cachedVersion ()
226 if (! $this- > shouldBeCached
) return null ;
227 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
231 // Put a page in the cache.
232 public function cache ( $page )
234 if (! $this- > shouldBeCached
) return ;
235 file_put_contents ( $this- > filename
, $page );
238 // Purge the whole cache.
239 // (call with pageCache::purgeCache())
240 public static function purgeCache ()
242 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
244 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
245 if ( $handler !== false )
247 while (( $filename = readdir ( $handler ))!== false )
249 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
259 // -----------------------------------------------------------------------------------------------
261 function logm ( $message )
263 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
264 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
267 // In a string, converts URLs to clickable links.
268 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
269 function text2clickable ( $url )
271 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
272 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
275 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
276 // even in the absence of <pre> (This is used in description to keep text formatting)
277 function keepMultipleSpaces ( $text )
279 return str_replace ( ' ' , ' ' , $text );
282 // ------------------------------------------------------------------------------------------
283 // Sniff browser language to display dates in the right format automatically.
284 // (Note that is may not work on your server if the corresponding local is not installed.)
285 function autoLocale ()
287 $attempts = array ( 'en_US' ); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
288 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
289 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
290 if ( preg_match ( '/([a-z] {2} )-?([a-z] {2} )?/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) {
291 $loc = $matches [ 1 ] . (! empty ( $matches [ 2 ]) ? '_' . strtoupper ( $matches [ 2 ]) : '' );
292 $attempts = array ( $loc . '.UTF-8' , $loc , str_replace ( '_' , '-' , $loc ). '.UTF-8' , str_replace ( '_' , '-' , $loc ),
293 $loc . '_' . strtoupper ( $loc ). '.UTF-8' , $loc . '_' . strtoupper ( $loc ),
294 $loc . '_' . $loc . '.UTF-8' , $loc . '_' . $loc , $loc . '-' . strtoupper ( $loc ). '.UTF-8' ,
295 $loc . '-' . strtoupper ( $loc ), $loc . '-' . $loc . '.UTF-8' , $loc . '-' . $loc );
298 setlocale ( LC_TIME
, $attempts ); // LC_TIME = Set local for date/time format only.
301 // ------------------------------------------------------------------------------------------
302 // PubSubHubbub protocol support (if enabled) [UNTESTED]
303 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
304 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
307 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
309 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
311 indexUrl (). '?do=atom' ,
314 $p- > publish_update ( $topic_url );
318 // ------------------------------------------------------------------------------------------
319 // Session management
321 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
324 $ip = $_SERVER [ "REMOTE_ADDR" ];
325 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
326 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
327 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
331 function fillSessionInfo () {
332 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
333 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
334 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
335 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
338 // Check that user/password is correct.
339 function check_auth ( $login , $password )
341 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
342 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
343 { // Login/password is correct.
345 logm ( 'Login successful' );
348 logm ( 'Login failed for user ' . $login );
352 // Returns true if the user is logged in.
353 function isLoggedIn ()
355 global $userIsLoggedIn ;
356 return $userIsLoggedIn ;
361 if ( isset ( $_SESSION )) {
362 unset ( $_SESSION [ 'uid' ]);
363 unset ( $_SESSION [ 'ip' ]);
364 unset ( $_SESSION [ 'username' ]);
365 unset ( $_SESSION [ 'privateonly' ]);
367 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
371 // ------------------------------------------------------------------------------------------
372 // Brute force protection system
373 // Several consecutive failed logins will ban the IP address for 30 minutes.
374 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 ?>" );
375 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
376 // Signal a failed login. Will ban the IP if too many failures:
377 function ban_loginFailed ()
379 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
380 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
381 $gb [ 'FAILURES' ][ $ip ] ++
;
382 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
384 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
385 logm ( 'IP address banned from login' );
387 $GLOBALS [ 'IPBANS' ] = $gb ;
388 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
391 // Signals a successful login. Resets failed login counter.
392 function ban_loginOk ()
394 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
395 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
396 $GLOBALS [ 'IPBANS' ] = $gb ;
397 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
400 // Checks if the user CAN login. If 'true', the user can try to login.
401 function ban_canLogin ()
403 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
404 if ( isset ( $gb [ 'BANS' ][ $ip ]))
406 // User is banned. Check if the ban has expired:
407 if ( $gb [ 'BANS' ][ $ip ]<= time ())
408 { // Ban expired, user can try to login again.
410 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
411 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
412 return true ; // Ban has expired, user can login.
414 return false ; // User is banned.
416 return true ; // User is not banned.
419 // ------------------------------------------------------------------------------------------
420 // Process login form: Check if login/password is correct.
421 if ( isset ( $_POST [ 'login' ]))
423 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
424 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
425 { // Login/password is OK.
427 // If user wants to keep the session cookie even after the browser closes:
428 if (! empty ( $_POST [ 'longlastingsession' ]))
430 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
431 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
432 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
434 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
435 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
436 // Note: Never forget the trailing slash on the cookie path!
437 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
439 else // Standard session expiration (=when browser closes)
441 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
442 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
443 session_regenerate_id ( true );
445 // Optional redirect after login:
446 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 ; }
447 if ( isset ( $_POST [ 'returnurl' ]))
449 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
450 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
452 header ( 'Location: ?' ); exit ;
458 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' ]): '' ); }
459 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
464 // ------------------------------------------------------------------------------------------
465 // Misc utility functions:
467 // Returns the server URL (including port and http/https), without path.
468 // e.g. "http://myserver.com:8080"
469 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
472 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
473 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
474 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
477 // Returns the absolute URL of current script, without the query.
478 // (e.g. http://sebsauvage.net/links/)
481 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
482 // If the script is named 'index.php', we remove it (for better looking URLs,
483 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
484 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
485 return serverUrl () . $scriptname ;
488 // Returns the absolute URL of current script, WITH the query.
489 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
492 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
495 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
496 function return_bytes ( $val )
498 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
501 case 'g' : $val *= 1024 ;
502 case 'm' : $val *= 1024 ;
503 case 'k' : $val *= 1024 ;
508 // Try to determine max file size for uploads (POST).
509 // Returns an integer (in bytes)
510 function getMaxFileSize ()
512 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
513 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
514 // Return the smaller of two:
515 $maxsize = min ( $size1 , $size2 );
516 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
520 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
521 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
522 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
523 function linkdate2timestamp ( $linkdate )
525 if ( strcmp ( $linkdate , '_000000' ) !== 0 || ! $linkdate ){
527 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
528 return mktime ( $h , $m , $s , $M , $D , $Y );
533 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
534 (used to build the pubDate attribute in RSS feed.) */
535 function linkdate2rfc822 ( $linkdate )
537 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
540 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
541 (used to build the updated tags in ATOM feed.) */
542 function linkdate2iso8601 ( $linkdate )
544 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
547 // Parse HTTP response headers and return an associative array.
548 function http_parse_headers_shaarli ( $headers )
551 foreach ( $headers as $header )
553 $i = strpos ( $header , ': ' );
556 $key = substr ( $header , 0 , $i );
557 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
565 Input: $url : URL to get (http://...)
566 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
567 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
568 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
570 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
571 if (strpos($httpstatus,'200 OK')!==false)
572 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
574 echo 'There was an error: '.htmlspecialchars($httpstatus)
576 function getHTTP ( $url , $timeout = 30 )
580 $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
581 $context = stream_context_create ( $options );
582 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
583 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
584 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
585 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
586 return array ( $httpStatus , $responseHeaders , $data );
588 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
590 return array ( $e- > getMessage (), '' , '' );
594 // Extract title from an HTML document.
595 // (Returns an empty string if not found.)
596 function html_extract_title ( $html )
598 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
601 // ------------------------------------------------------------------------------------------
602 // Token management for XSRF protection
603 // Token should be used in any form which acts on data (create,update,delete,import...).
604 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
609 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
610 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
614 // Tells if a token is OK. Using this function will destroy the token.
616 function tokenOk ( $token )
618 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
620 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
621 return true ; // Token is OK.
623 return false ; // Wrong token, or already used.
626 // ------------------------------------------------------------------------------------------
627 /* This class is in charge of building the final page.
628 (This is basically a wrapper around RainTPL which pre-fills some fields.)
630 p.assign('myfield','myvalue');
631 p.renderPage('mytemplate');
636 private $tpl ; // RainTPL template
638 function __construct ()
643 private function initialize ()
645 $this- > tpl
= new RainTPL
;
646 $this- > tpl
-> assign ( 'newversion' , escape ( checkUpdate ()));
647 $this- > tpl
-> assign ( 'feedurl' , escape ( indexUrl ()));
648 $searchcrits = '' ; // Search criteria
649 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
650 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
651 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
652 $this- > tpl
-> assign ( 'source' , indexUrl ());
653 $this- > tpl
-> assign ( 'version' , shaarli_version
);
654 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
655 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
656 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
657 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
658 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
659 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
660 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
664 // The following assign() method is basically the same as RainTPL (except that it's lazy)
665 public function assign ( $what , $where )
667 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
668 $this- > tpl
-> assign ( $what , $where );
671 // Render a specific page (using a template).
672 // e.g. pb.renderPage('picwall')
673 public function renderPage ( $page )
675 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
676 $this- > tpl
-> draw ( $page );
680 // ------------------------------------------------------------------------------------------
681 // Output the last N links in RSS 2.0 format.
684 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
686 // $usepermalink : If true, use permalink instead of final link.
687 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
688 // Also enabled through a config option
689 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
692 $query = $_SERVER [ "QUERY_STRING" ];
693 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
694 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
696 // If cached was not found (or not usable), then read the database and build the response:
697 $LINKSDB = new LinkDB (
698 $GLOBALS [ 'config' ][ 'DATASTORE' ],
699 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
700 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
702 // Read links from database (and filter private links if user it not logged in).
704 // Optionally filter the results:
705 $linksToDisplay = array ();
706 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
707 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
708 else $linksToDisplay = $LINKSDB ;
710 $nblinksToDisplay = 50 ; // Number of links to display.
711 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
713 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
716 $pageaddr = escape ( indexUrl ());
717 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
718 echo '<channel><title>' . $GLOBALS [ 'title' ]. '</title><link>' . $pageaddr . '</link>' ;
719 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
720 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
722 echo '<!-- PubSubHubbub Discovery -->' ;
723 echo '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
724 echo '<link rel="self" href="' . $pageaddr . '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
725 echo '<!-- End Of PubSubHubbub Discovery -->' ;
728 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
729 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
731 $link = $linksToDisplay [ $keys [ $i ]];
732 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
733 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
734 $absurl = $link [ 'url' ];
735 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
736 if ( $usepermalinks === true )
737 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
739 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
740 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . escape ( $rfc822date ). "</pubDate> \n " ;
741 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
743 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . $pageaddr
. '">' . $tag
. '</category>' . " \n " ; }
746 // Add permalink in description
747 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
748 // If user wants permalinks first, put the final link in description
749 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
750 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
751 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
754 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
756 $cache- > cache ( ob_get_contents ());
761 // ------------------------------------------------------------------------------------------
762 // Output the last N links in ATOM format.
765 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
767 // $usepermalink : If true, use permalink instead of final link.
768 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
769 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
772 $query = $_SERVER [ "QUERY_STRING" ];
773 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
774 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
775 // If cached was not found (or not usable), then read the database and build the response:
777 // Read links from database (and filter private links if used it not logged in).
778 $LINKSDB = new LinkDB (
779 $GLOBALS [ 'config' ][ 'DATASTORE' ],
780 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
781 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
784 // Optionally filter the results:
785 $linksToDisplay = array ();
786 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
787 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
788 else $linksToDisplay = $LINKSDB ;
790 $nblinksToDisplay = 50 ; // Number of links to display.
791 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
793 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
796 $pageaddr = escape ( indexUrl ());
800 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
801 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
803 $link = $linksToDisplay [ $keys [ $i ]];
804 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
805 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
806 $latestDate = max ( $latestDate , $iso8601date );
807 $absurl = $link [ 'url' ];
808 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
809 $entries .= '<entry><title>' . $link [ 'title' ]. '</title>' ;
810 if ( $usepermalinks === true )
811 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
813 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
814 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . escape ( $iso8601date ). '</updated>' ;
816 // Add permalink in description
817 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
818 // If user wants permalinks first, put the final link in description
819 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
820 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
822 $entries .= '<content type="html"><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . "]]></content> \n " ;
823 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
825 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
826 { $entries
.= '<category scheme="' . $pageaddr
. '" term="' . $tag
. '" />' . " \n " ; }
828 $entries .= "</entry> \n " ;
831 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
832 $feed .= '<title>' . $GLOBALS [ 'title' ]. '</title>' ;
833 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . escape ( $latestDate ). '</updated>' ;
834 $feed .= '<link rel="self" href="' . escape ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
835 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
837 $feed .= '<!-- PubSubHubbub Discovery -->' ;
838 $feed .= '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
839 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
841 $feed .= '<author><name>' . $pageaddr . '</name><uri>' . $pageaddr . '</uri></author>' ;
842 $feed .= '<id>' . $pageaddr . '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
844 $feed .= '</feed><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
847 $cache- > cache ( ob_get_contents ());
852 // ------------------------------------------------------------------------------------------
853 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
854 // Gives the last 7 days (which have links).
855 // This RSS feed cannot be filtered.
856 function showDailyRSS ()
859 $query = $_SERVER [ "QUERY_STRING" ];
860 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
861 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
862 // If cached was not found (or not usable), then read the database and build the response:
864 // Read links from database (and filter private links if used it not logged in).
865 $LINKSDB = new LinkDB (
866 $GLOBALS [ 'config' ][ 'DATASTORE' ],
867 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
868 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
871 /* Some Shaarlies may have very few links, so we need to look
872 back in time (rsort()) until we have enough days ($nb_of_days).
874 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
876 $nb_of_days = 7 ; // We take 7 days.
879 foreach ( $linkdates as $linkdate )
881 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
882 if ( strcmp ( $day , $today )< 0 )
884 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
885 $days [ $day ][]= $linkdate ;
887 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days?
890 // Build the RSS feed.
891 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
892 $pageaddr = escape ( indexUrl ());
893 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
894 echo '<channel><title>Daily - ' . $GLOBALS [ 'title' ]. '</title><link>' . $pageaddr . '</link>' ;
895 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
897 foreach ( $days as $day => $linkdates ) // For each day.
899 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
900 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
901 $absurl = escape ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
902 echo '<item><title>' . $GLOBALS [ 'title' ]. ' - ' . $daydate . '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
903 echo '<pubDate>' . escape ( $rfc822date ). "</pubDate>" ;
905 // Build the HTML body of this RSS entry.
909 // We pre-format some fields for proper output.
910 foreach ( $linkdates as $linkdate )
912 $l = $LINKSDB [ $linkdate ];
913 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $l [ 'description' ])));
914 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
915 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
916 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
917 $links [ $linkdate ]= $l ;
919 // Then build the HTML for this day:
921 $tpl- > assign ( 'links' , $links );
922 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
924 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
927 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
929 $cache- > cache ( ob_get_contents ());
937 $LINKSDB = new LinkDB (
938 $GLOBALS [ 'config' ][ 'DATASTORE' ],
939 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
940 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
943 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
944 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
946 $days = $LINKSDB- > days ();
947 $i = array_search ( $day , $days );
948 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
953 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
954 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
958 $linksToDisplay = $LINKSDB- > filterDay ( $day );
959 } catch ( Exception
$exc ) {
961 $linksToDisplay = [];
964 // We pre-format some fields for proper output.
965 foreach ( $linksToDisplay as $key => $link )
968 $taglist = explode ( ' ' , $link [ 'tags' ]);
969 uasort ( $taglist , 'strcasecmp' );
970 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
971 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
972 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
973 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
976 /* We need to spread the articles on 3 columns.
977 I did not want to use a JavaScript lib like http://masonry.desandro.com/
978 so I manually spread entries with a simple method: I roughly evaluate the
979 height of a div according to title and description length.
981 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
982 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
983 foreach ( $linksToDisplay as $key => $link )
985 // Roughly estimate length of entry (by counting characters)
986 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
987 // Description: 836 characters gives roughly 342 pixel height.
988 // This is not perfect, but it's usually OK.
989 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
990 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
991 // Then put in column which is the less filled:
992 $smallest = min ( $fill ); // find smallest value in array.
993 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
994 array_push ( $columns [ $index ], $link ); // Put entry in this column.
995 $fill [ $index ] +
= $length ;
997 $PAGE = new pageBuilder
;
998 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
999 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1000 $PAGE- > assign ( 'cols' , $columns );
1001 $PAGE- > assign ( 'day' , linkdate2timestamp ( $day . '_000000' ));
1002 $PAGE- > assign ( 'previousday' , $previousday );
1003 $PAGE- > assign ( 'nextday' , $nextday );
1004 $PAGE- > renderPage ( 'daily' );
1009 // ------------------------------------------------------------------------------------------
1010 // Render HTML page (according to URL parameters and user rights)
1011 function renderPage ()
1013 $LINKSDB = new LinkDB (
1014 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1015 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1016 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1019 // -------- Display login form.
1020 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1022 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1023 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1024 $PAGE = new pageBuilder
;
1025 $PAGE- > assign ( 'token' , $token );
1026 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
1027 $PAGE- > renderPage ( 'loginform' );
1030 // -------- User wants to logout.
1031 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1035 header ( 'Location: ?' );
1039 // -------- Picture wall
1040 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1042 // Optionally filter the results:
1044 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1045 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1046 else $links = $LINKSDB ;
1049 $linksToDisplay = array ();
1051 // Get only links which have a thumbnail.
1052 foreach ( $links as $link )
1054 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
1055 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1056 if ( $thumb != '' ) // Only output links which have a thumbnail.
1058 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1059 $linksToDisplay []= $link ; // Add to array.
1063 $PAGE = new pageBuilder
;
1064 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1065 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1066 $PAGE- > renderPage ( 'picwall' );
1070 // -------- Tag cloud
1071 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1073 $tags = $LINKSDB- > allTags ();
1075 // We sort tags alphabetically, then choose a font size according to count.
1076 // First, find max value.
1077 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1080 foreach ( $tags as $key => $value )
1081 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1083 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1085 $PAGE = new pageBuilder
;
1086 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1087 $PAGE- > assign ( 'tags' , $tagList );
1088 $PAGE- > renderPage ( 'tagcloud' );
1092 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1093 if ( isset ( $_GET [ 'addtag' ]))
1095 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1096 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1097 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1099 // Check if this tag is already in the search query and ignore it if it is.
1100 // Each tag is always separated by a space
1101 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1103 foreach ( $current_tags as $value ) {
1104 if ( $value === $_GET [ 'addtag' ]) {
1109 // Append the tag if necessary
1110 if ( empty ( $params [ 'searchtags' ])) {
1111 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1114 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1117 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1118 header ( 'Location: ?' . http_build_query ( $params ));
1122 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1123 if ( isset ( $_GET [ 'removetag' ]))
1125 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1126 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1127 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1128 if ( isset ( $params [ 'searchtags' ]))
1130 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1131 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1132 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1133 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1135 header ( 'Location: ?' . http_build_query ( $params ));
1139 // -------- User wants to change the number of links per page (linksperpage=...)
1140 if ( isset ( $_GET [ 'linksperpage' ]))
1142 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1143 // Make sure the referrer is Shaarli itself.
1145 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1146 $referer = $_SERVER [ 'HTTP_REFERER' ];
1147 header ( 'Location: ' . $referer );
1151 // -------- User wants to see only private links (toggle)
1152 if ( isset ( $_GET [ 'privateonly' ]))
1154 if ( empty ( $_SESSION [ 'privateonly' ]))
1156 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1160 unset ( $_SESSION [ 'privateonly' ]); // See all links
1162 // Make sure the referrer is Shaarli itself.
1164 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1165 $referer = $_SERVER [ 'HTTP_REFERER' ];
1166 header ( 'Location: ' . $referer );
1170 // -------- Handle other actions allowed for non-logged in users:
1173 // User tries to post new link but is not logged in:
1174 // Show login screen, then redirect to ?post=...
1175 if ( isset ( $_GET [ 'post' ]))
1177 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.
1181 // Same case as above except that user tried to access ?do=addlink without being logged in
1182 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1183 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1184 header ( 'Location: ?do=login&post=' );
1188 $PAGE = new pageBuilder
;
1189 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1190 $PAGE- > renderPage ( 'linklist' );
1191 exit ; // Never remove this one! All operations below are reserved for logged in user.
1194 // -------- All other functions are reserved for the registered user:
1196 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1197 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1199 $PAGE = new pageBuilder
;
1200 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1201 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1202 $PAGE- > renderPage ( 'tools' );
1206 // -------- User wants to change his/her password.
1207 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1209 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1210 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1212 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1214 // Make sure old password is correct.
1215 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1216 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1217 // Save new password
1218 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1219 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1221 writeConfig ( $GLOBALS , isLoggedIn ());
1223 catch ( Exception
$e ) {
1225 'ERROR while writing config file after changing password.' . PHP_EOL
.
1229 // TODO: do not handle exceptions/errors in JS.
1230 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1233 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1236 else // show the change password form.
1238 $PAGE = new pageBuilder
;
1239 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1240 $PAGE- > assign ( 'token' , getToken ());
1241 $PAGE- > renderPage ( 'changepassword' );
1246 // -------- User wants to change configuration
1247 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1249 if (! empty ( $_POST [ 'title' ]) )
1251 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1253 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1254 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1255 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1256 $GLOBALS [ 'timezone' ] = $tz ;
1257 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1258 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1259 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1260 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1261 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1262 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1263 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1264 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'hidePublicLinks' ]);
1266 writeConfig ( $GLOBALS , isLoggedIn ());
1268 catch ( Exception
$e ) {
1270 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1274 // TODO: do not handle exceptions/errors in JS.
1275 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1278 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1281 else // Show the configuration form.
1283 $PAGE = new pageBuilder
;
1284 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1285 $PAGE- > assign ( 'token' , getToken ());
1286 $PAGE- > assign ( 'title' , empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] );
1287 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] );
1288 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1289 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1290 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1291 $PAGE- > renderPage ( 'configure' );
1296 // -------- User wants to rename a tag or delete it
1297 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1299 if ( empty ( $_POST [ 'fromtag' ]))
1301 $PAGE = new pageBuilder
;
1302 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1303 $PAGE- > assign ( 'token' , getToken ());
1304 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1305 $PAGE- > renderPage ( 'changetag' );
1308 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1311 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1313 $needle = trim ( $_POST [ 'fromtag' ]);
1314 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1315 foreach ( $linksToAlter as $key => $value )
1317 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1318 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1319 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1320 $LINKSDB [ $key ]= $value ;
1322 $LINKSDB- > savedb (); // Save to disk.
1323 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1328 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1330 $needle = trim ( $_POST [ 'fromtag' ]);
1331 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1332 foreach ( $linksToAlter as $key => $value )
1334 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1335 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1336 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1337 $LINKSDB [ $key ]= $value ;
1339 $LINKSDB- > savedb (); // Save to disk.
1340 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1345 // -------- User wants to add a link without using the bookmarklet: Show form.
1346 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1348 $PAGE = new pageBuilder
;
1349 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1350 $PAGE- > renderPage ( 'addlink' );
1354 // -------- User clicked the "Save" button when editing a link: Save link to database.
1355 if ( isset ( $_POST [ 'save_edit' ]))
1357 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1358 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1359 $linkdate = $_POST [ 'lf_linkdate' ];
1360 $url = trim ( $_POST [ 'lf_url' ]);
1361 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1362 $url = 'http://' . $url ;
1363 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1364 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1365 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1366 $LINKSDB [ $linkdate ] = $link ;
1367 $LINKSDB- > savedb (); // Save to disk.
1370 // If we are called from the bookmarklet, we must close the popup:
1371 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1372 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1373 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1374 if ( strstr ( $returnurl , "do=addlink" )) { $returnurl
= '?' ; } //if we come from ?do=addlink, set returnurl to homepage instead
1375 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1379 // -------- User clicked the "Cancel" button when editing a link.
1380 if ( isset ( $_POST [ 'cancel_edit' ]))
1382 // If we are called from the bookmarklet, we must close the popup:
1383 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1384 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1385 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1386 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1390 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1391 if ( isset ( $_POST [ 'delete_link' ]))
1393 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1394 // We do not need to ask for confirmation:
1395 // - confirmation is handled by JavaScript
1396 // - we are protected from XSRF by the token.
1397 $linkdate = $_POST [ 'lf_linkdate' ];
1398 unset ( $LINKSDB [ $linkdate ]);
1399 $LINKSDB- > savedb (); // save to disk
1401 // If we are called from the bookmarklet, we must close the popup:
1402 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1403 // Pick where we're going to redirect
1404 // =============================================================
1405 // Basically, we can't redirect to where we were previously if it was a permalink
1406 // or an edit_link, because it would 404.
1408 // - / : nothing in $_GET, redirect to self
1409 // - /?page : redirect to self
1410 // - /?searchterm : redirect to self (there might be other links)
1411 // - /?searchtags : redirect to self
1412 // - /permalink : redirect to / (the link does not exist anymore)
1413 // - /?edit_link : redirect to / (the link does not exist anymore)
1414 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1415 // redirect is not satisfied, and only then redirect to /
1418 if ( count ( $_GET ) == 0 ||
1419 isset ( $_GET [ 'page' ]) ||
1420 isset ( $_GET [ 'searchterm' ]) ||
1421 isset ( $_GET [ 'searchtags' ])) {
1423 if ( isset ( $_POST [ 'returnurl' ])) {
1424 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1427 if ( $location === "?" &&
1428 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1429 $location = $_SERVER [ 'HTTP_REFERER' ];
1433 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1437 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1438 if ( isset ( $_GET [ 'edit_link' ]))
1440 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1441 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1442 $PAGE = new pageBuilder
;
1443 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1444 $PAGE- > assign ( 'link' , $link );
1445 $PAGE- > assign ( 'link_is_new' , false );
1446 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1447 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ));
1448 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1449 $PAGE- > renderPage ( 'editlink' );
1453 // -------- User want to post a new link: Display link edit form.
1454 if ( isset ( $_GET [ 'post' ]))
1459 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1460 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' ,
1461 '/[ \? &]utm_campaign=[^&]*/' ,
1462 '/[ \? &]utm_medium=[^&]*/' ,
1463 '/#xtor=RSS-[^&]*/' ,
1465 '/[ \? &]__scoop[^&]*/' ,
1467 '/[ \? &]action_ref_map=[^&]*/' ,
1468 '/[ \? &]action_type_map=[^&]*/' ,
1469 '/[ \? &]action_object_map=[^&]*/' ,
1470 '/[ \? &]utm_content=[^&]*/' ,
1474 foreach ( $annoyingpatterns as $pattern )
1476 $url = preg_replace ( $pattern , "" , $url );
1479 $link_is_new = false ;
1480 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1483 $link_is_new = true ; // This is a new link
1484 $linkdate = strval ( date ( 'Ymd_His' ));
1485 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1486 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1487 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1488 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1489 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1490 // 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.)
1491 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1493 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1494 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1495 if ( strpos ( $status , '200 OK' )!== false )
1497 // Look for charset in html header.
1498 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1500 // If found, extract encoding.
1501 if (! empty ( $meta [ 0 ]))
1503 // Get encoding specified in header.
1504 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1505 // If charset not found, use utf-8.
1506 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1508 else { $html_charset
= 'utf-8' ; }
1511 $title = html_extract_title ( $data );
1514 // Re-encode title in utf-8 if necessary.
1515 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1519 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1521 $url = '?' . smallHash ( $linkdate );
1524 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1527 $PAGE = new pageBuilder
;
1528 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1529 $PAGE- > assign ( 'link' , $link );
1530 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1531 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1532 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1533 $PAGE- > assign ( 'source' ,( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ));
1534 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1535 $PAGE- > renderPage ( 'editlink' );
1539 // -------- Export as Netscape Bookmarks HTML file.
1540 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1542 if ( empty ( $_GET [ 'what' ]))
1544 $PAGE = new pageBuilder
;
1545 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1546 $PAGE- > renderPage ( 'export' );
1549 $exportWhat = $_GET [ 'what' ];
1550 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1552 header ( 'Content-Type: text/html; charset=utf-8' );
1553 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1554 $currentdate = date ( 'Y/m/d H:i:s' );
1556 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1557 <!-- This is an automatically generated file.
1558 It will be read and overwritten.
1560 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1561 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1562 <TITLE>Bookmarks</TITLE>
1565 foreach ( $LINKSDB as $link )
1567 if ( $exportWhat == 'all' ||
1568 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1569 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1571 echo '<DT><A HREF="' . $link [ 'url' ]. '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1572 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . str_replace ( ' ' , ',' , $link [ 'tags' ]). '"' ;
1573 echo '>' . $link [ 'title' ]. "</A> \n " ;
1574 if ( $link [ 'description' ]!= '' ) echo '<DD>' . $link [ 'description' ]. " \n " ;
1580 // -------- User is uploading a file for import
1581 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1583 // If file is too big, some form field may be missing.
1584 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1586 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1587 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>' ;
1590 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1595 // -------- Show upload/import dialog:
1596 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1598 $PAGE = new pageBuilder
;
1599 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1600 $PAGE- > assign ( 'token' , getToken ());
1601 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1602 $PAGE- > renderPage ( 'import' );
1606 // -------- Otherwise, simply display search form and links:
1607 $PAGE = new pageBuilder
;
1608 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1609 $PAGE- > renderPage ( 'linklist' );
1613 // -----------------------------------------------------------------------------------------------
1614 // Process the import file form.
1615 function importFile ()
1617 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1618 $LINKSDB = new LinkDB (
1619 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1620 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1621 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1623 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1624 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1625 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1626 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1627 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1632 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1634 // Then import the bookmarks.
1635 if ( $type == 'netscape' )
1637 // This is a standard Netscape-style bookmark file.
1638 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1639 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1641 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1642 $d = explode ( '<DD>' , $html );
1643 if ( startswith ( $d [ 0 ], '<A ' ))
1645 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1646 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1647 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1648 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1650 foreach ( $matches as $m )
1652 $attr = $m [ 1 ]; $value = $m [ 2 ];
1653 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1654 elseif ( $attr == 'ADD_DATE' )
1656 $raw_add_date = intval ( $value );
1657 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1659 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1660 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1662 if ( $link [ 'url' ]!= '' )
1664 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1665 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1667 { // Link not in database, let's import it...
1668 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1670 // Make sure date/time is not already used by another link.
1671 // (Some bookmark files have several different links with the same ADD_DATE)
1672 // We increment date by 1 second until we find a date which is not used in DB.
1673 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1674 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1675 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1676 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1679 else // Link already present in database.
1682 { // If overwrite is required, we import link data, except date/time.
1683 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1684 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1694 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1698 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1702 // -----------------------------------------------------------------------------------------------
1703 // Template for the list of links (<div id="linklist">)
1704 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1705 function buildLinkList ( $PAGE , $LINKSDB )
1707 // ---- Filter link database according to parameters
1708 $linksToDisplay = array ();
1711 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1713 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1714 $search_crits = escape ( trim ( $_GET [ 'searchterm' ]));
1715 $search_type = 'fulltext' ;
1717 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1719 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1720 $search_crits = explode ( ' ' , escape ( trim ( $_GET [ 'searchtags' ])));
1721 $search_type = 'tags' ;
1723 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1725 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1726 if ( count ( $linksToDisplay )== 0 )
1728 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1729 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1730 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1733 $search_type = 'permalink' ;
1736 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1739 // Option: Show only private links
1740 if (! empty ( $_SESSION [ 'privateonly' ]))
1743 foreach ( $linksToDisplay as $linkdate => $link )
1745 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1747 $linksToDisplay = $tmp ;
1750 // ---- Handle paging.
1751 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1752 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1753 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1755 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1757 // If there is only a single link, we change on-the-fly the title of the page.
1758 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1760 // Select articles according to paging.
1761 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1762 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1763 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1764 $page = ( $page < 1 ? 1 : $page );
1765 $page = ( $page > $pagecount ? $pagecount : $page );
1766 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1767 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1768 $linkDisp = array (); // Links to display
1769 while ( $i < $end && $i < count ( $keys ))
1771 $link = $linksToDisplay [ $keys [ $i ]];
1772 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
1773 $title = $link [ 'title' ];
1774 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1775 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1776 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1777 $taglist = explode ( ' ' , $link [ 'tags' ]);
1778 uasort ( $taglist , 'strcasecmp' );
1779 $link [ 'taglist' ]= $taglist ;
1781 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.
1782 strlen ( $link [ "url" ]) === 7 ) {
1783 $link [ "url" ] = indexUrl () . $link [ "url" ];
1786 $linkDisp [ $keys [ $i ]] = $link ;
1790 // Compute paging navigation
1791 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1792 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1794 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1795 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1797 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1799 // Fill all template fields.
1800 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1801 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1802 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1803 $PAGE- > assign ( 'page_current' , $page );
1804 $PAGE- > assign ( 'page_max' , $pagecount );
1805 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1806 $PAGE- > assign ( 'search_type' , $search_type );
1807 $PAGE- > assign ( 'search_crits' , $search_crits );
1808 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1809 $PAGE- > assign ( 'token' , $token );
1810 $PAGE- > assign ( 'links' , $linkDisp );
1811 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1815 // Compute the thumbnail for a link.
1817 // With a link to the original URL.
1818 // Understands various services (youtube.com...)
1819 // Input: $url = URL for which the thumbnail must be found.
1820 // $href = if provided, this URL will be followed instead of $url
1821 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1822 // Some of them may be missing.
1823 // Return an empty array if no thumbnail available.
1824 function computeThumbnail ( $url , $href = false )
1826 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1827 if ( $href == false ) $href = $url ;
1829 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1830 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1831 // ^^^^^^^^^^^ ^^^^^^^^^^^
1832 $domain = parse_url ( $url , PHP_URL_HOST
);
1833 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1835 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1836 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1837 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1839 if ( $domain == 'youtu.be' ) // Youtube short links
1841 $path = parse_url ( $url , PHP_URL_PATH
);
1842 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1843 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1845 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1847 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1848 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1849 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1852 if ( $domain == 'imgur.com' )
1854 $path = parse_url ( $url , PHP_URL_PATH
);
1855 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1856 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1857 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1858 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1859 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1861 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1862 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1864 if ( $domain == 'i.imgur.com' )
1866 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1867 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1868 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1870 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1872 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1874 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1875 return array ( 'src' => $thumburl ,
1876 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1879 if ( endsWith ( $domain , '.imageshack.us' ))
1881 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1882 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1884 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1885 return array ( 'src' => $thumburl ,
1886 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1890 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1891 // So we deport the thumbnail generation in order not to slow down page generation
1892 // (and we also cache the thumbnail)
1894 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1896 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1897 || $domain == 'vimeo.com'
1898 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1899 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1902 if ( $domain == 'vimeo.com' )
1903 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1904 $path = parse_url ( $url , PHP_URL_PATH
);
1905 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1907 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1908 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1909 $path = parse_url ( $url , PHP_URL_PATH
);
1910 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1912 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1913 { // Make sure this TED URL points to a video (/talks/...)
1914 $path = parse_url ( $url , PHP_URL_PATH
);
1915 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1917 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1918 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1919 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1922 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1923 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1924 // But using the extension will do.
1925 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1926 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1928 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1929 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1930 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1932 return array (); // No thumbnail.
1937 // Returns the HTML code to display a thumbnail for a link
1938 // with a link to the original URL.
1939 // Understands various services (youtube.com...)
1940 // Input: $url = URL for which the thumbnail must be found.
1941 // $href = if provided, this URL will be followed instead of $url
1942 // Returns '' if no thumbnail available.
1943 function thumbnail ( $url , $href = false )
1945 $t = computeThumbnail ( $url , $href );
1946 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1948 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1949 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1950 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1951 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1952 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1957 // Returns the HTML code to display a thumbnail for a link
1958 // for the picture wall (using lazy image loading)
1959 // Understands various services (youtube.com...)
1960 // Input: $url = URL for which the thumbnail must be found.
1961 // $href = if provided, this URL will be followed instead of $url
1962 // Returns '' if no thumbnail available.
1963 function lazyThumbnail ( $url , $href = false )
1965 $t = computeThumbnail ( $url , $href );
1966 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1968 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
1971 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
1973 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1974 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1975 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1976 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1979 // No-JavaScript fallback.
1980 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
1981 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1982 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1983 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1984 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1985 $html .= '></noscript></a>' ;
1991 // -----------------------------------------------------------------------------------------------
1993 // This function should NEVER be called if the file data/config.php exists.
1996 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1997 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2000 // This part makes sure sessions works correctly.
2001 // (Because on some hosts, session.save_path may not be set correctly,
2002 // or we may not have write access to it.)
2003 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2004 { // Step 2: Check if data in session is correct.
2005 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2006 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2007 echo 'It currently points to ' . session_save_path (). '<br>' ;
2008 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>' ;
2009 echo '<br><a href="?">Click to try again.</a></pre>' ;
2012 if (! isset ( $_SESSION [ 'session_tested' ]))
2013 { // Step 1 : Try to store data in session and reload page.
2014 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2015 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2017 if ( isset ( $_GET [ 'test_session' ]))
2018 { // Step 3: Sessions are OK. Remove test parameter from URL.
2019 header ( 'Location: ' . indexUrl ());
2023 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2026 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2027 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2028 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2029 $GLOBALS [ 'timezone' ] = $tz ;
2030 // Everything is ok, let's create config file.
2031 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2032 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2033 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2034 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . escape ( indexUrl ()) : $_POST [ 'title' ] );
2035 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2037 writeConfig ( $GLOBALS , isLoggedIn ());
2039 catch ( Exception
$e ) {
2041 'ERROR while writing config file after installation.' . PHP_EOL
.
2045 // TODO: do not handle exceptions/errors in JS.
2046 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2049 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2053 // Display config form:
2054 list ( $timezone_form , $timezone_js ) = templateTZform ();
2055 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2057 $PAGE = new pageBuilder
;
2058 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2059 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2060 $PAGE- > renderPage ( 'install' );
2064 // Generates the timezone selection form and JavaScript.
2065 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2066 // Output: array(html,js)
2067 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2068 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2069 function templateTZform ( $ptz = false )
2071 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2073 // Try to split the provided timezone.
2074 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2075 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2077 // Display config form:
2078 $timezone_form = '' ;
2080 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2081 // We split the list in continents/cities.
2082 $continents = array ();
2084 foreach ( timezone_identifiers_list () as $tz )
2086 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2087 $spos = strpos ( $tz , '/' );
2090 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2091 $continents [ $continent ]= 1 ;
2092 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2093 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2096 $continents_html = '' ;
2097 $continents = array_keys ( $continents );
2098 foreach ( $continents as $continent )
2099 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2100 $cities_html = $cities [ $pcontinent ];
2101 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2102 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2103 $timezone_js = "<script>" ;
2104 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2105 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2106 $timezone_js .= "</script>" ;
2107 return array ( $timezone_form , $timezone_js );
2109 return array ( '' , '' );
2112 // Tells if a timezone is valid or not.
2113 // If not valid, returns false.
2114 // If system does not support timezone list, returns false.
2115 function isTZvalid ( $continent , $city )
2117 $tz = $continent . '/' . $city ;
2118 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2120 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2125 if (! function_exists ( 'json_encode' )) {
2126 function json_encode ( $data ) {
2127 switch ( $type = gettype ( $data )) {
2131 return ( $data ? 'true' : 'false' );
2137 return '"' . addslashes ( $data ) . '"' ;
2139 $data = get_object_vars ( $data );
2141 $output_index_count = 0 ;
2142 $output_indexed = array ();
2143 $output_associative = array ();
2144 foreach ( $data as $key => $value ) {
2145 $output_indexed [] = json_encode ( $value );
2146 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2147 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2148 $output_index_count = NULL ;
2151 if ( $output_index_count !== NULL ) {
2152 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2154 return ' {' . implode(',', $output_associative) . '} ' ;
2157 return '' ; // Not supported
2164 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2165 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2166 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2167 This function is called by passing the URL:
2168 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2169 [URL] is the URL of the link (e.g. a flickr page)
2170 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2171 The function below will fetch the image from the webservice and store it in the cache.
2173 function genThumbnail ()
2175 // Make sure the parameters in the URL were generated by us.
2176 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2177 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2179 // Let's see if we don't already have the image for this URL in the cache.
2180 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2181 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2182 { // We have the thumbnail, just serve it:
2183 header ( 'Content-Type: image/jpeg' );
2184 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2187 // We may also serve a blank image (if service did not respond)
2188 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2189 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2191 header ( 'Content-Type: image/gif' );
2192 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2196 // Otherwise, generate the thumbnail.
2197 $url = $_GET [ 'url' ];
2198 $domain = parse_url ( $url , PHP_URL_HOST
);
2200 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2202 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2203 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2205 // Is this a link to an image, or to a flickr page ?
2207 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2208 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2209 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2210 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2212 else // This is a flickr page (html)
2214 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2215 if ( strpos ( $httpstatus , '200 OK' )!== false )
2217 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2218 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2219 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2221 // In albums (and some other pages), the link rel="image_src" is not provided,
2222 // but flickr provides:
2223 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2226 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2227 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2233 { // Let's download the image.
2234 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2235 if ( strpos ( $httpstatus , '200 OK' )!== false )
2237 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2238 header ( 'Content-Type: image/jpeg' );
2245 elseif ( $domain == 'vimeo.com' )
2247 // This is more complex: we have to perform a HTTP request, then parse the result.
2248 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2249 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2250 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2251 if ( strpos ( $httpstatus , '200 OK' )!== false )
2253 $t = unserialize ( $data );
2254 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2255 // Then we download the image and serve it to our client.
2256 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2257 if ( strpos ( $httpstatus , '200 OK' )!== false )
2259 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2260 header ( 'Content-Type: image/jpeg' );
2267 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2269 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2270 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2271 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2272 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2273 if ( strpos ( $httpstatus , '200 OK' )!== false )
2275 // Extract the link to the thumbnail
2276 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2277 if (! empty ( $matches [ 1 ]))
2278 { // Let's download the image.
2279 $imageurl = $matches [ 1 ];
2280 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2281 if ( strpos ( $httpstatus , '200 OK' )!== false )
2283 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2284 file_put_contents ( $filepath , $data ); // Save image to cache.
2285 if ( resizeImage ( $filepath ))
2287 header ( 'Content-Type: image/jpeg' );
2288 echo file_get_contents ( $filepath );
2296 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2298 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2299 // http://xkcd.com/327/
2300 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2301 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2302 if ( strpos ( $httpstatus , '200 OK' )!== false )
2304 // Extract the link to the thumbnail
2305 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2306 if (! empty ( $matches [ 1 ]))
2307 { // Let's download the image.
2308 $imageurl = $matches [ 1 ];
2309 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2310 if ( strpos ( $httpstatus , '200 OK' )!== false )
2312 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2313 file_put_contents ( $filepath , $data ); // Save image to cache.
2314 if ( resizeImage ( $filepath ))
2316 header ( 'Content-Type: image/jpeg' );
2317 echo file_get_contents ( $filepath );
2327 // For all other domains, we try to download the image and make a thumbnail.
2328 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2329 if ( strpos ( $httpstatus , '200 OK' )!== false )
2331 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2332 file_put_contents ( $filepath , $data ); // Save image to cache.
2333 if ( resizeImage ( $filepath ))
2335 header ( 'Content-Type: image/jpeg' );
2336 echo file_get_contents ( $filepath );
2343 // Otherwise, return an empty image (8x8 transparent gif)
2344 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2345 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2346 header ( 'Content-Type: image/gif' );
2350 // Make a thumbnail of the image (to width: 120 pixels)
2351 // Returns true if success, false otherwise.
2352 function resizeImage ( $filepath )
2354 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2356 // Trick: some stupid people rename GIF as JPEG... or else.
2357 // So we really try to open each image type whatever the extension is.
2358 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2360 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2361 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2362 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2363 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2366 $ystart = 0 ; $yheight = $h ;
2367 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2368 $nw = 120 ; // Desired width
2369 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2371 $im2 = imagecreatetruecolor ( $nw , $nh );
2372 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2373 imageinterlace ( $im2 , true ); // For progressive JPEG.
2374 $tempname = $filepath . '_TEMP.jpg' ;
2375 imagejpeg ( $im2 , $tempname , 90 );
2379 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2383 // Invalidate caches when the database is changed or the user logs out.
2384 // (e.g. tags cache).
2385 function invalidateCaches ()
2387 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2388 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2392 mergeDeprecatedConfig ( $GLOBALS , isLoggedIn ());
2393 } catch ( Exception
$e ) {
2395 'ERROR while merging deprecated options.php file.' . PHP_EOL
.
2400 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2401 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2402 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2403 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2404 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2405 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];