]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
a0195db7919b2de6aa531c9dbb223336c4674c6b
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 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
68 require_once $GLOBALS [ 'config' ][ 'CONFIG_FILE' ];
72 require_once 'application/LinkDB.php' ;
73 require_once 'application/Utils.php' ;
74 require_once 'application/Config.php' ;
76 include "inc/rain.tpl.class.php" ; //include Rain TPL
77 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
78 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
80 ob_start (); // Output buffering for the page cache.
83 // In case stupid admin has left magic_quotes enabled in php.ini:
84 if ( get_magic_quotes_gpc ())
86 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
87 $_POST = array_map ( 'stripslashes_deep' , $_POST );
88 $_GET = array_map ( 'stripslashes_deep' , $_GET );
89 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
92 // Prevent caching on client side or proxy: (yes, it's ugly)
93 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
94 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
95 header ( "Cache-Control: post-check=0, pre-check=0" , false );
96 header ( "Pragma: no-cache" );
98 // Directories creations (Note that your web host may require different rights than 705.)
99 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
101 // Handling of old config file which do not have the new parameters.
102 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . escape ( indexUrl ());
103 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
104 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
105 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
106 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
107 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
108 // I really need to rewrite Shaarli with a proper configuation manager.
110 // Run config screen if first run:
111 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
115 $GLOBALS [ 'title' ] = ! empty ( $GLOBALS [ 'title' ]) ? escape ( $GLOBALS [ 'title' ]) : '' ;
116 $GLOBALS [ 'titleLink' ] = ! empty ( $GLOBALS [ 'titleLink' ]) ? escape ( $GLOBALS [ 'titleLink' ]) : '' ;
117 $GLOBALS [ 'redirector' ] = ! empty ( $GLOBALS [ 'redirector' ]) ? escape ( $GLOBALS [ 'redirector' ]) : '' ;
119 // a token depending of deployment salt, user password, and the current ip
120 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
122 autoLocale (); // Sniff browser language and set date format accordingly.
123 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
125 //==================================================================================================
126 // Checking session state (i.e. is the user still logged in)
127 //==================================================================================================
129 function setup_login_state () {
130 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
131 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
132 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
133 $userIsLoggedIn = true ;
135 if (! isset ( $GLOBALS [ 'login' ])) {
136 $userIsLoggedIn = false ; // Shaarli is not configured yet.
137 $loginFailure = true ;
139 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
140 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
144 $userIsLoggedIn = true ;
146 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
147 if ( empty ( $_SESSION [ 'uid' ]) ||
148 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
149 time () >= $_SESSION [ 'expires_on' ])
152 $userIsLoggedIn = false ;
153 $loginFailure = true ;
155 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
156 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
159 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
161 if (! $loginFailure ) {
162 $userIsLoggedIn = true ;
165 return $userIsLoggedIn ;
167 //==================================================================================================
168 $userIsLoggedIn = setup_login_state ();
169 //==================================================================================================
170 //==================================================================================================
173 function checkphpversion ()
175 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
177 header ( 'Content-Type: text/plain; charset=utf-8' );
178 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.' ;
183 // Checks if an update is available for Shaarli.
184 // (at most once a day, and only for registered user.)
185 // Output: '' = no new version.
186 // other= the available version.
187 function checkUpdate ()
189 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
190 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
192 // Get latest version number at most once a day.
193 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
195 $version = shaarli_version
;
196 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
197 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
198 // If failed, never mind. We don't want to bother the user with that.
199 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
202 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
203 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
208 // -----------------------------------------------------------------------------------------------
209 // Simple cache system (mainly for the RSS/ATOM feeds).
213 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
214 private $shouldBeCached ; // boolean: Should this url be cached?
215 private $filename ; // Name of the cache file for this url.
218 $url = URL (typically the value returned by pageUrl())
219 $shouldBeCached = boolean. If false, the cache will be disabled.
221 public function __construct ( $url , $shouldBeCached )
224 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
225 $this- > shouldBeCached
= $shouldBeCached ;
228 // If the page should be cached and a cached version exists,
229 // returns the cached version (otherwise, return null).
230 public function cachedVersion ()
232 if (! $this- > shouldBeCached
) return null ;
233 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
237 // Put a page in the cache.
238 public function cache ( $page )
240 if (! $this- > shouldBeCached
) return ;
241 file_put_contents ( $this- > filename
, $page );
244 // Purge the whole cache.
245 // (call with pageCache::purgeCache())
246 public static function purgeCache ()
248 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
250 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
251 if ( $handler !== false )
253 while (( $filename = readdir ( $handler ))!== false )
255 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
265 // -----------------------------------------------------------------------------------------------
267 function logm ( $message )
269 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
270 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
273 // In a string, converts URLs to clickable links.
274 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
275 function text2clickable ( $url )
277 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
278 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
281 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
282 // even in the absence of <pre> (This is used in description to keep text formatting)
283 function keepMultipleSpaces ( $text )
285 return str_replace ( ' ' , ' ' , $text );
288 // ------------------------------------------------------------------------------------------
289 // Sniff browser language to display dates in the right format automatically.
290 // (Note that is may not work on your server if the corresponding local is not installed.)
291 function autoLocale ()
293 $attempts = array ( 'en_US' ); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
294 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
295 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
296 if ( preg_match ( '/([a-z] {2} )-?([a-z] {2} )?/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) {
297 $loc = $matches [ 1 ] . (! empty ( $matches [ 2 ]) ? '_' . strtoupper ( $matches [ 2 ]) : '' );
298 $attempts = array ( $loc . '.UTF-8' , $loc , str_replace ( '_' , '-' , $loc ). '.UTF-8' , str_replace ( '_' , '-' , $loc ),
299 $loc . '_' . strtoupper ( $loc ). '.UTF-8' , $loc . '_' . strtoupper ( $loc ),
300 $loc . '_' . $loc . '.UTF-8' , $loc . '_' . $loc , $loc . '-' . strtoupper ( $loc ). '.UTF-8' ,
301 $loc . '-' . strtoupper ( $loc ), $loc . '-' . $loc . '.UTF-8' , $loc . '-' . $loc );
304 setlocale ( LC_TIME
, $attempts ); // LC_TIME = Set local for date/time format only.
307 // ------------------------------------------------------------------------------------------
308 // PubSubHubbub protocol support (if enabled) [UNTESTED]
309 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
310 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
313 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
315 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
317 indexUrl (). '?do=atom' ,
320 $p- > publish_update ( $topic_url );
324 // ------------------------------------------------------------------------------------------
325 // Session management
327 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
330 $ip = $_SERVER [ "REMOTE_ADDR" ];
331 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
332 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
333 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
337 function fillSessionInfo () {
338 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
339 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
340 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
341 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
344 // Check that user/password is correct.
345 function check_auth ( $login , $password )
347 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
348 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
349 { // Login/password is correct.
351 logm ( 'Login successful' );
354 logm ( 'Login failed for user ' . $login );
358 // Returns true if the user is logged in.
359 function isLoggedIn ()
361 global $userIsLoggedIn ;
362 return $userIsLoggedIn ;
367 if ( isset ( $_SESSION )) {
368 unset ( $_SESSION [ 'uid' ]);
369 unset ( $_SESSION [ 'ip' ]);
370 unset ( $_SESSION [ 'username' ]);
371 unset ( $_SESSION [ 'privateonly' ]);
373 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
377 // ------------------------------------------------------------------------------------------
378 // Brute force protection system
379 // Several consecutive failed logins will ban the IP address for 30 minutes.
380 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 ?>" );
381 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
382 // Signal a failed login. Will ban the IP if too many failures:
383 function ban_loginFailed ()
385 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
386 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
387 $gb [ 'FAILURES' ][ $ip ] ++
;
388 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
390 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
391 logm ( 'IP address banned from login' );
393 $GLOBALS [ 'IPBANS' ] = $gb ;
394 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
397 // Signals a successful login. Resets failed login counter.
398 function ban_loginOk ()
400 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
401 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
402 $GLOBALS [ 'IPBANS' ] = $gb ;
403 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
406 // Checks if the user CAN login. If 'true', the user can try to login.
407 function ban_canLogin ()
409 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
410 if ( isset ( $gb [ 'BANS' ][ $ip ]))
412 // User is banned. Check if the ban has expired:
413 if ( $gb [ 'BANS' ][ $ip ]<= time ())
414 { // Ban expired, user can try to login again.
416 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
417 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
418 return true ; // Ban has expired, user can login.
420 return false ; // User is banned.
422 return true ; // User is not banned.
425 // ------------------------------------------------------------------------------------------
426 // Process login form: Check if login/password is correct.
427 if ( isset ( $_POST [ 'login' ]))
429 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
430 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
431 { // Login/password is OK.
433 // If user wants to keep the session cookie even after the browser closes:
434 if (! empty ( $_POST [ 'longlastingsession' ]))
436 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
437 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
438 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
440 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
441 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
442 // Note: Never forget the trailing slash on the cookie path!
443 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
445 else // Standard session expiration (=when browser closes)
447 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
448 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
449 session_regenerate_id ( true );
451 // Optional redirect after login:
452 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 ; }
453 if ( isset ( $_POST [ 'returnurl' ]))
455 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
456 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
458 header ( 'Location: ?' ); exit ;
464 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' ]): '' ); }
465 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
470 // ------------------------------------------------------------------------------------------
471 // Misc utility functions:
473 // Returns the server URL (including port and http/https), without path.
474 // e.g. "http://myserver.com:8080"
475 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
478 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
479 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
480 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
483 // Returns the absolute URL of current script, without the query.
484 // (e.g. http://sebsauvage.net/links/)
487 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
488 // If the script is named 'index.php', we remove it (for better looking URLs,
489 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
490 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
491 return serverUrl () . $scriptname ;
494 // Returns the absolute URL of current script, WITH the query.
495 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
498 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
501 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
502 function return_bytes ( $val )
504 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
507 case 'g' : $val *= 1024 ;
508 case 'm' : $val *= 1024 ;
509 case 'k' : $val *= 1024 ;
514 // Try to determine max file size for uploads (POST).
515 // Returns an integer (in bytes)
516 function getMaxFileSize ()
518 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
519 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
520 // Return the smaller of two:
521 $maxsize = min ( $size1 , $size2 );
522 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
526 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
527 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
528 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
529 function linkdate2timestamp ( $linkdate )
531 if ( strcmp ( $linkdate , '_000000' ) !== 0 || ! $linkdate ){
533 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
534 return mktime ( $h , $m , $s , $M , $D , $Y );
539 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
540 (used to build the pubDate attribute in RSS feed.) */
541 function linkdate2rfc822 ( $linkdate )
543 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
546 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
547 (used to build the updated tags in ATOM feed.) */
548 function linkdate2iso8601 ( $linkdate )
550 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
553 // Parse HTTP response headers and return an associative array.
554 function http_parse_headers_shaarli ( $headers )
557 foreach ( $headers as $header )
559 $i = strpos ( $header , ': ' );
562 $key = substr ( $header , 0 , $i );
563 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
571 Input: $url : URL to get (http://...)
572 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
573 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
574 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
576 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
577 if (strpos($httpstatus,'200 OK')!==false)
578 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
580 echo 'There was an error: '.htmlspecialchars($httpstatus)
582 function getHTTP ( $url , $timeout = 30 )
586 $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
587 $context = stream_context_create ( $options );
588 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
589 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
590 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
591 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
592 return array ( $httpStatus , $responseHeaders , $data );
594 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
596 return array ( $e- > getMessage (), '' , '' );
600 // Extract title from an HTML document.
601 // (Returns an empty string if not found.)
602 function html_extract_title ( $html )
604 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
607 // ------------------------------------------------------------------------------------------
608 // Token management for XSRF protection
609 // Token should be used in any form which acts on data (create,update,delete,import...).
610 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
615 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
616 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
620 // Tells if a token is OK. Using this function will destroy the token.
622 function tokenOk ( $token )
624 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
626 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
627 return true ; // Token is OK.
629 return false ; // Wrong token, or already used.
632 // ------------------------------------------------------------------------------------------
633 /* This class is in charge of building the final page.
634 (This is basically a wrapper around RainTPL which pre-fills some fields.)
636 p.assign('myfield','myvalue');
637 p.renderPage('mytemplate');
642 private $tpl ; // RainTPL template
644 function __construct ()
649 private function initialize ()
651 $this- > tpl
= new RainTPL
;
652 $this- > tpl
-> assign ( 'newversion' , escape ( checkUpdate ()));
653 $this- > tpl
-> assign ( 'feedurl' , escape ( indexUrl ()));
654 $searchcrits = '' ; // Search criteria
655 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
656 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
657 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
658 $this- > tpl
-> assign ( 'source' , indexUrl ());
659 $this- > tpl
-> assign ( 'version' , shaarli_version
);
660 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
661 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
662 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
663 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
664 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
665 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
666 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
670 // The following assign() method is basically the same as RainTPL (except that it's lazy)
671 public function assign ( $what , $where )
673 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
674 $this- > tpl
-> assign ( $what , $where );
677 // Render a specific page (using a template).
678 // e.g. pb.renderPage('picwall')
679 public function renderPage ( $page )
681 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
682 $this- > tpl
-> draw ( $page );
686 // ------------------------------------------------------------------------------------------
687 // Output the last N links in RSS 2.0 format.
690 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
692 // $usepermalink : If true, use permalink instead of final link.
693 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
694 // Also enabled through a config option
695 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
698 $query = $_SERVER [ "QUERY_STRING" ];
699 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
700 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
702 // If cached was not found (or not usable), then read the database and build the response:
703 $LINKSDB = new LinkDB (
704 $GLOBALS [ 'config' ][ 'DATASTORE' ],
705 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
706 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
708 // Read links from database (and filter private links if user it not logged in).
710 // Optionally filter the results:
711 $linksToDisplay = array ();
712 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
713 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
714 else $linksToDisplay = $LINKSDB ;
716 $nblinksToDisplay = 50 ; // Number of links to display.
717 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
719 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
722 $pageaddr = escape ( indexUrl ());
723 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
724 echo '<channel><title>' . $GLOBALS [ 'title' ]. '</title><link>' . $pageaddr . '</link>' ;
725 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
726 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
728 echo '<!-- PubSubHubbub Discovery -->' ;
729 echo '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
730 echo '<link rel="self" href="' . $pageaddr . '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
731 echo '<!-- End Of PubSubHubbub Discovery -->' ;
734 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
735 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
737 $link = $linksToDisplay [ $keys [ $i ]];
738 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
739 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
740 $absurl = $link [ 'url' ];
741 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
742 if ( $usepermalinks === true )
743 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
745 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
746 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . escape ( $rfc822date ). "</pubDate> \n " ;
747 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
749 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . $pageaddr
. '">' . $tag
. '</category>' . " \n " ; }
752 // Add permalink in description
753 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
754 // If user wants permalinks first, put the final link in description
755 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
756 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
757 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
760 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
762 $cache- > cache ( ob_get_contents ());
767 // ------------------------------------------------------------------------------------------
768 // Output the last N links in ATOM format.
771 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
773 // $usepermalink : If true, use permalink instead of final link.
774 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
775 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
778 $query = $_SERVER [ "QUERY_STRING" ];
779 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
780 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
781 // If cached was not found (or not usable), then read the database and build the response:
783 // Read links from database (and filter private links if used it not logged in).
784 $LINKSDB = new LinkDB (
785 $GLOBALS [ 'config' ][ 'DATASTORE' ],
786 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
787 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
790 // Optionally filter the results:
791 $linksToDisplay = array ();
792 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
793 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
794 else $linksToDisplay = $LINKSDB ;
796 $nblinksToDisplay = 50 ; // Number of links to display.
797 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
799 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
802 $pageaddr = escape ( indexUrl ());
806 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
807 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
809 $link = $linksToDisplay [ $keys [ $i ]];
810 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
811 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
812 $latestDate = max ( $latestDate , $iso8601date );
813 $absurl = $link [ 'url' ];
814 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
815 $entries .= '<entry><title>' . $link [ 'title' ]. '</title>' ;
816 if ( $usepermalinks === true )
817 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
819 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
820 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . escape ( $iso8601date ). '</updated>' ;
822 // Add permalink in description
823 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
824 // If user wants permalinks first, put the final link in description
825 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
826 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
828 $entries .= '<content type="html"><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . "]]></content> \n " ;
829 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
831 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
832 { $entries
.= '<category scheme="' . $pageaddr
. '" term="' . $tag
. '" />' . " \n " ; }
834 $entries .= "</entry> \n " ;
837 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
838 $feed .= '<title>' . $GLOBALS [ 'title' ]. '</title>' ;
839 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . escape ( $latestDate ). '</updated>' ;
840 $feed .= '<link rel="self" href="' . escape ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
841 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
843 $feed .= '<!-- PubSubHubbub Discovery -->' ;
844 $feed .= '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
845 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
847 $feed .= '<author><name>' . $pageaddr . '</name><uri>' . $pageaddr . '</uri></author>' ;
848 $feed .= '<id>' . $pageaddr . '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
850 $feed .= '</feed><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
853 $cache- > cache ( ob_get_contents ());
858 // ------------------------------------------------------------------------------------------
859 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
860 // Gives the last 7 days (which have links).
861 // This RSS feed cannot be filtered.
862 function showDailyRSS () {
864 $query = $_SERVER [ "QUERY_STRING" ];
865 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
866 $cached = $cache- > cachedVersion ();
867 if (! empty ( $cached )) {
872 // If cached was not found (or not usable), then read the database and build the response:
873 // Read links from database (and filter private links if used it not logged in).
874 $LINKSDB = new LinkDB (
875 $GLOBALS [ 'config' ][ 'DATASTORE' ],
876 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
877 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
880 /* Some Shaarlies may have very few links, so we need to look
881 back in time (rsort()) until we have enough days ($nb_of_days).
883 $linkdates = array ();
884 foreach ( $LINKSDB as $linkdate => $value ) {
885 $linkdates [] = $linkdate ;
888 $nb_of_days = 7 ; // We take 7 days.
889 $today = Date ( 'Ymd' );
892 foreach ( $linkdates as $linkdate ) {
893 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
894 if ( strcmp ( $day , $today ) < 0 ) {
895 if ( empty ( $days [ $day ])) {
896 $days [ $day ] = array ();
898 $days [ $day ][] = $linkdate ;
901 if ( count ( $days ) > $nb_of_days ) {
902 break ; // Have we collected enough days?
906 // Build the RSS feed.
907 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
908 $pageaddr = escape ( indexUrl ());
909 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
911 echo '<title>Daily - ' . $GLOBALS [ 'title' ] . '</title>' ;
912 echo '<link>' . $pageaddr . '</link>' ;
913 echo '<description>Daily shared links</description>' ;
914 echo '<language>en-en</language>' ;
915 echo '<copyright>' . $pageaddr . '</copyright>' . PHP_EOL
;
918 foreach ( $days as $day => $linkdates ) {
919 $daydate = linkdate2timestamp ( $day . '_000000' ); // Full text date
920 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
921 $absurl = escape ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
923 // Build the HTML body of this RSS entry.
928 // We pre-format some fields for proper output.
929 foreach ( $linkdates as $linkdate ) {
930 $l = $LINKSDB [ $linkdate ];
931 $l [ 'formatedDescription' ] = nl2br ( keepMultipleSpaces ( text2clickable ( $l [ 'description' ])));
932 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
933 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
934 if ( startsWith ( $l [ 'url' ], '?' )) {
935 $l [ 'url' ] = indexUrl () . $l [ 'url' ]; // make permalink URL absolute
937 $links [ $linkdate ] = $l ;
940 // Then build the HTML for this day:
942 $tpl- > assign ( 'title' , $GLOBALS [ 'title' ]);
943 $tpl- > assign ( 'daydate' , $daydate );
944 $tpl- > assign ( 'absurl' , $absurl );
945 $tpl- > assign ( 'links' , $links );
946 $tpl- > assign ( 'rfc822date' , escape ( $rfc822date ));
947 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
949 echo $html . PHP_EOL
;
951 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()) . ' -->' ;
953 $cache- > cache ( ob_get_contents ());
961 $LINKSDB = new LinkDB (
962 $GLOBALS [ 'config' ][ 'DATASTORE' ],
963 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
964 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
967 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
968 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
970 $days = $LINKSDB- > days ();
971 $i = array_search ( $day , $days );
972 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
977 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
978 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
982 $linksToDisplay = $LINKSDB- > filterDay ( $day );
983 } catch ( Exception
$exc ) {
985 $linksToDisplay = [];
988 // We pre-format some fields for proper output.
989 foreach ( $linksToDisplay as $key => $link )
992 $taglist = explode ( ' ' , $link [ 'tags' ]);
993 uasort ( $taglist , 'strcasecmp' );
994 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
995 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
996 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
997 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
1000 /* We need to spread the articles on 3 columns.
1001 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1002 so I manually spread entries with a simple method: I roughly evaluate the
1003 height of a div according to title and description length.
1005 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1006 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1007 foreach ( $linksToDisplay as $key => $link )
1009 // Roughly estimate length of entry (by counting characters)
1010 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1011 // Description: 836 characters gives roughly 342 pixel height.
1012 // This is not perfect, but it's usually OK.
1013 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1014 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1015 // Then put in column which is the less filled:
1016 $smallest = min ( $fill ); // find smallest value in array.
1017 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1018 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1019 $fill [ $index ] +
= $length ;
1021 $PAGE = new pageBuilder
;
1022 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1023 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1024 $PAGE- > assign ( 'cols' , $columns );
1025 $PAGE- > assign ( 'day' , linkdate2timestamp ( $day . '_000000' ));
1026 $PAGE- > assign ( 'previousday' , $previousday );
1027 $PAGE- > assign ( 'nextday' , $nextday );
1028 $PAGE- > renderPage ( 'daily' );
1033 // ------------------------------------------------------------------------------------------
1034 // Render HTML page (according to URL parameters and user rights)
1035 function renderPage ()
1037 $LINKSDB = new LinkDB (
1038 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1039 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1040 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1043 // -------- Display login form.
1044 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1046 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1047 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1048 $PAGE = new pageBuilder
;
1049 $PAGE- > assign ( 'token' , $token );
1050 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
1051 $PAGE- > renderPage ( 'loginform' );
1054 // -------- User wants to logout.
1055 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1059 header ( 'Location: ?' );
1063 // -------- Picture wall
1064 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1066 // Optionally filter the results:
1068 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1069 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1070 else $links = $LINKSDB ;
1073 $linksToDisplay = array ();
1075 // Get only links which have a thumbnail.
1076 foreach ( $links as $link )
1078 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
1079 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1080 if ( $thumb != '' ) // Only output links which have a thumbnail.
1082 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1083 $linksToDisplay []= $link ; // Add to array.
1087 $PAGE = new pageBuilder
;
1088 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1089 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1090 $PAGE- > renderPage ( 'picwall' );
1094 // -------- Tag cloud
1095 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1097 $tags = $LINKSDB- > allTags ();
1099 // We sort tags alphabetically, then choose a font size according to count.
1100 // First, find max value.
1101 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1104 foreach ( $tags as $key => $value )
1105 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1107 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1109 $PAGE = new pageBuilder
;
1110 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1111 $PAGE- > assign ( 'tags' , $tagList );
1112 $PAGE- > renderPage ( 'tagcloud' );
1116 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1117 if ( isset ( $_GET [ 'addtag' ]))
1119 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1120 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1121 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1123 // Check if this tag is already in the search query and ignore it if it is.
1124 // Each tag is always separated by a space
1125 if ( isset ( $params [ 'searchtags' ])) {
1126 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1128 $current_tags = array ();
1131 foreach ( $current_tags as $value ) {
1132 if ( $value === $_GET [ 'addtag' ]) {
1137 // Append the tag if necessary
1138 if ( empty ( $params [ 'searchtags' ])) {
1139 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1142 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1145 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1146 header ( 'Location: ?' . http_build_query ( $params ));
1150 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1151 if ( isset ( $_GET [ 'removetag' ]))
1153 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1154 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1155 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1156 if ( isset ( $params [ 'searchtags' ]))
1158 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1159 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1160 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1161 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1163 header ( 'Location: ?' . http_build_query ( $params ));
1167 // -------- User wants to change the number of links per page (linksperpage=...)
1168 if ( isset ( $_GET [ 'linksperpage' ]))
1170 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1171 // Make sure the referrer is Shaarli itself.
1173 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1174 $referer = $_SERVER [ 'HTTP_REFERER' ];
1175 header ( 'Location: ' . $referer );
1179 // -------- User wants to see only private links (toggle)
1180 if ( isset ( $_GET [ 'privateonly' ]))
1182 if ( empty ( $_SESSION [ 'privateonly' ]))
1184 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1188 unset ( $_SESSION [ 'privateonly' ]); // See all links
1190 // Make sure the referrer is Shaarli itself.
1192 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1193 $referer = $_SERVER [ 'HTTP_REFERER' ];
1194 header ( 'Location: ' . $referer );
1198 // -------- Handle other actions allowed for non-logged in users:
1201 // User tries to post new link but is not logged in:
1202 // Show login screen, then redirect to ?post=...
1203 if ( isset ( $_GET [ 'post' ]))
1205 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.
1209 // Same case as above except that user tried to access ?do=addlink without being logged in
1210 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1211 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1212 header ( 'Location: ?do=login&post=' );
1216 $PAGE = new pageBuilder
;
1217 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1218 $PAGE- > renderPage ( 'linklist' );
1219 exit ; // Never remove this one! All operations below are reserved for logged in user.
1222 // -------- All other functions are reserved for the registered user:
1224 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1225 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1227 $PAGE = new pageBuilder
;
1228 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1229 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1230 $PAGE- > renderPage ( 'tools' );
1234 // -------- User wants to change his/her password.
1235 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1237 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1238 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1240 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1242 // Make sure old password is correct.
1243 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1244 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1245 // Save new password
1246 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1247 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1249 writeConfig ( $GLOBALS , isLoggedIn ());
1251 catch ( Exception
$e ) {
1253 'ERROR while writing config file after changing password.' . PHP_EOL
.
1257 // TODO: do not handle exceptions/errors in JS.
1258 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1261 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1264 else // show the change password form.
1266 $PAGE = new pageBuilder
;
1267 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1268 $PAGE- > assign ( 'token' , getToken ());
1269 $PAGE- > renderPage ( 'changepassword' );
1274 // -------- User wants to change configuration
1275 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1277 if (! empty ( $_POST [ 'title' ]) )
1279 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1281 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1282 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1283 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1284 $GLOBALS [ 'timezone' ] = $tz ;
1285 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1286 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1287 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1288 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1289 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1290 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1291 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1292 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'hidePublicLinks' ]);
1294 writeConfig ( $GLOBALS , isLoggedIn ());
1296 catch ( Exception
$e ) {
1298 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1302 // TODO: do not handle exceptions/errors in JS.
1303 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1306 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1309 else // Show the configuration form.
1311 $PAGE = new pageBuilder
;
1312 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1313 $PAGE- > assign ( 'token' , getToken ());
1314 $PAGE- > assign ( 'title' , empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] );
1315 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] );
1316 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1317 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1318 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1319 $PAGE- > renderPage ( 'configure' );
1324 // -------- User wants to rename a tag or delete it
1325 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1327 if ( empty ( $_POST [ 'fromtag' ]))
1329 $PAGE = new pageBuilder
;
1330 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1331 $PAGE- > assign ( 'token' , getToken ());
1332 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1333 $PAGE- > renderPage ( 'changetag' );
1336 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1339 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1341 $needle = trim ( $_POST [ 'fromtag' ]);
1342 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1343 foreach ( $linksToAlter as $key => $value )
1345 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1346 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1347 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1348 $LINKSDB [ $key ]= $value ;
1350 $LINKSDB- > savedb (); // Save to disk.
1351 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1356 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1358 $needle = trim ( $_POST [ 'fromtag' ]);
1359 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1360 foreach ( $linksToAlter as $key => $value )
1362 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1363 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1364 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1365 $LINKSDB [ $key ]= $value ;
1367 $LINKSDB- > savedb (); // Save to disk.
1368 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1373 // -------- User wants to add a link without using the bookmarklet: Show form.
1374 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1376 $PAGE = new pageBuilder
;
1377 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1378 $PAGE- > renderPage ( 'addlink' );
1382 // -------- User clicked the "Save" button when editing a link: Save link to database.
1383 if ( isset ( $_POST [ 'save_edit' ]))
1385 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1386 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1387 $tags = implode ( ' ' , array_unique ( explode ( ' ' , $tags ))); // Remove duplicates.
1388 $linkdate = $_POST [ 'lf_linkdate' ];
1389 $url = trim ( $_POST [ 'lf_url' ]);
1390 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1391 $url = 'http://' . $url ;
1392 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1393 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1394 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1395 $LINKSDB [ $linkdate ] = $link ;
1396 $LINKSDB- > savedb (); // Save to disk.
1399 // If we are called from the bookmarklet, we must close the popup:
1400 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1401 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1402 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1403 if ( strstr ( $returnurl , "do=addlink" )) { $returnurl
= '?' ; } //if we come from ?do=addlink, set returnurl to homepage instead
1404 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1408 // -------- User clicked the "Cancel" button when editing a link.
1409 if ( isset ( $_POST [ 'cancel_edit' ]))
1411 // If we are called from the bookmarklet, we must close the popup:
1412 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1413 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1414 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1415 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1419 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1420 if ( isset ( $_POST [ 'delete_link' ]))
1422 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1423 // We do not need to ask for confirmation:
1424 // - confirmation is handled by JavaScript
1425 // - we are protected from XSRF by the token.
1426 $linkdate = $_POST [ 'lf_linkdate' ];
1427 unset ( $LINKSDB [ $linkdate ]);
1428 $LINKSDB- > savedb (); // save to disk
1430 // If we are called from the bookmarklet, we must close the popup:
1431 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1432 // Pick where we're going to redirect
1433 // =============================================================
1434 // Basically, we can't redirect to where we were previously if it was a permalink
1435 // or an edit_link, because it would 404.
1437 // - / : nothing in $_GET, redirect to self
1438 // - /?page : redirect to self
1439 // - /?searchterm : redirect to self (there might be other links)
1440 // - /?searchtags : redirect to self
1441 // - /permalink : redirect to / (the link does not exist anymore)
1442 // - /?edit_link : redirect to / (the link does not exist anymore)
1443 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1444 // redirect is not satisfied, and only then redirect to /
1447 if ( count ( $_GET ) == 0 ||
1448 isset ( $_GET [ 'page' ]) ||
1449 isset ( $_GET [ 'searchterm' ]) ||
1450 isset ( $_GET [ 'searchtags' ])) {
1452 if ( isset ( $_POST [ 'returnurl' ])) {
1453 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1456 if ( $location === "?" &&
1457 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1458 $location = $_SERVER [ 'HTTP_REFERER' ];
1462 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1466 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1467 if ( isset ( $_GET [ 'edit_link' ]))
1469 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1470 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1471 $PAGE = new pageBuilder
;
1472 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1473 $PAGE- > assign ( 'link' , $link );
1474 $PAGE- > assign ( 'link_is_new' , false );
1475 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1476 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ));
1477 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1478 $PAGE- > renderPage ( 'editlink' );
1482 // -------- User want to post a new link: Display link edit form.
1483 if ( isset ( $_GET [ 'post' ]))
1488 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1489 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' ,
1490 '/[ \? &]utm_campaign=[^&]*/' ,
1491 '/[ \? &]utm_medium=[^&]*/' ,
1492 '/#xtor=RSS-[^&]*/' ,
1494 '/[ \? &]__scoop[^&]*/' ,
1496 '/[ \? &]action_ref_map=[^&]*/' ,
1497 '/[ \? &]action_type_map=[^&]*/' ,
1498 '/[ \? &]action_object_map=[^&]*/' ,
1499 '/[ \? &]utm_content=[^&]*/' ,
1503 foreach ( $annoyingpatterns as $pattern )
1505 $url = preg_replace ( $pattern , "" , $url );
1508 $link_is_new = false ;
1509 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1512 $link_is_new = true ; // This is a new link
1513 $linkdate = strval ( date ( 'Ymd_His' ));
1514 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1515 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1516 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1517 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1518 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1519 // 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.)
1520 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1522 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1523 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1524 if ( strpos ( $status , '200 OK' )!== false )
1526 // Look for charset in html header.
1527 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1529 // If found, extract encoding.
1530 if (! empty ( $meta [ 0 ]))
1532 // Get encoding specified in header.
1533 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1534 // If charset not found, use utf-8.
1535 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1537 else { $html_charset
= 'utf-8' ; }
1540 $title = html_extract_title ( $data );
1543 // Re-encode title in utf-8 if necessary.
1544 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1548 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1550 $url = '?' . smallHash ( $linkdate );
1553 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1556 $PAGE = new pageBuilder
;
1557 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1558 $PAGE- > assign ( 'link' , $link );
1559 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1560 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1561 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1562 $PAGE- > assign ( 'source' ,( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ));
1563 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1564 $PAGE- > renderPage ( 'editlink' );
1568 // -------- Export as Netscape Bookmarks HTML file.
1569 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1571 if ( empty ( $_GET [ 'what' ]))
1573 $PAGE = new pageBuilder
;
1574 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1575 $PAGE- > renderPage ( 'export' );
1578 $exportWhat = $_GET [ 'what' ];
1579 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1581 header ( 'Content-Type: text/html; charset=utf-8' );
1582 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1583 $currentdate = date ( 'Y/m/d H:i:s' );
1585 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1586 <!-- This is an automatically generated file.
1587 It will be read and overwritten.
1589 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1590 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1591 <TITLE>Bookmarks</TITLE>
1594 foreach ( $LINKSDB as $link )
1596 if ( $exportWhat == 'all' ||
1597 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1598 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1600 echo '<DT><A HREF="' . $link [ 'url' ]. '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1601 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . str_replace ( ' ' , ',' , $link [ 'tags' ]). '"' ;
1602 echo '>' . $link [ 'title' ]. "</A> \n " ;
1603 if ( $link [ 'description' ]!= '' ) echo '<DD>' . $link [ 'description' ]. " \n " ;
1609 // -------- User is uploading a file for import
1610 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1612 // If file is too big, some form field may be missing.
1613 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1615 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1616 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>' ;
1619 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1624 // -------- Show upload/import dialog:
1625 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1627 $PAGE = new pageBuilder
;
1628 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1629 $PAGE- > assign ( 'token' , getToken ());
1630 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1631 $PAGE- > renderPage ( 'import' );
1635 // -------- Otherwise, simply display search form and links:
1636 $PAGE = new pageBuilder
;
1637 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1638 $PAGE- > renderPage ( 'linklist' );
1642 // -----------------------------------------------------------------------------------------------
1643 // Process the import file form.
1644 function importFile ()
1646 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1647 $LINKSDB = new LinkDB (
1648 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1649 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1650 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1652 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1653 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1654 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1655 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1656 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1661 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1663 // Then import the bookmarks.
1664 if ( $type == 'netscape' )
1666 // This is a standard Netscape-style bookmark file.
1667 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1668 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1670 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1671 $d = explode ( '<DD>' , $html );
1672 if ( startswith ( $d [ 0 ], '<A ' ))
1674 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1675 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1676 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1677 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1679 foreach ( $matches as $m )
1681 $attr = $m [ 1 ]; $value = $m [ 2 ];
1682 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1683 elseif ( $attr == 'ADD_DATE' )
1685 $raw_add_date = intval ( $value );
1686 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1688 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1689 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1691 if ( $link [ 'url' ]!= '' )
1693 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1694 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1696 { // Link not in database, let's import it...
1697 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1699 // Make sure date/time is not already used by another link.
1700 // (Some bookmark files have several different links with the same ADD_DATE)
1701 // We increment date by 1 second until we find a date which is not used in DB.
1702 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1703 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1704 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1705 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1708 else // Link already present in database.
1711 { // If overwrite is required, we import link data, except date/time.
1712 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1713 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1723 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1727 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1731 // -----------------------------------------------------------------------------------------------
1732 // Template for the list of links (<div id="linklist">)
1733 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1734 function buildLinkList ( $PAGE , $LINKSDB )
1736 // ---- Filter link database according to parameters
1737 $linksToDisplay = array ();
1740 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1742 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1743 $search_crits = escape ( trim ( $_GET [ 'searchterm' ]));
1744 $search_type = 'fulltext' ;
1746 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1748 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1749 $search_crits = explode ( ' ' , escape ( trim ( $_GET [ 'searchtags' ])));
1750 $search_type = 'tags' ;
1752 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1754 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1755 if ( count ( $linksToDisplay )== 0 )
1757 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1758 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1759 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1762 $search_type = 'permalink' ;
1765 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1768 // Option: Show only private links
1769 if (! empty ( $_SESSION [ 'privateonly' ]))
1772 foreach ( $linksToDisplay as $linkdate => $link )
1774 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1776 $linksToDisplay = $tmp ;
1779 // ---- Handle paging.
1780 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1781 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1782 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1784 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1786 // If there is only a single link, we change on-the-fly the title of the page.
1787 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1789 // Select articles according to paging.
1790 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1791 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1792 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1793 $page = ( $page < 1 ? 1 : $page );
1794 $page = ( $page > $pagecount ? $pagecount : $page );
1795 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1796 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1797 $linkDisp = array (); // Links to display
1798 while ( $i < $end && $i < count ( $keys ))
1800 $link = $linksToDisplay [ $keys [ $i ]];
1801 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
1802 $title = $link [ 'title' ];
1803 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1804 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1805 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1806 $taglist = explode ( ' ' , $link [ 'tags' ]);
1807 uasort ( $taglist , 'strcasecmp' );
1808 $link [ 'taglist' ]= $taglist ;
1810 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.
1811 strlen ( $link [ "url" ]) === 7 ) {
1812 $link [ "url" ] = indexUrl () . $link [ "url" ];
1815 $linkDisp [ $keys [ $i ]] = $link ;
1819 // Compute paging navigation
1820 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1821 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1823 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1824 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1826 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1828 // Fill all template fields.
1829 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1830 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1831 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1832 $PAGE- > assign ( 'page_current' , $page );
1833 $PAGE- > assign ( 'page_max' , $pagecount );
1834 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1835 $PAGE- > assign ( 'search_type' , $search_type );
1836 $PAGE- > assign ( 'search_crits' , $search_crits );
1837 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1838 $PAGE- > assign ( 'token' , $token );
1839 $PAGE- > assign ( 'links' , $linkDisp );
1840 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1844 // Compute the thumbnail for a link.
1846 // With a link to the original URL.
1847 // Understands various services (youtube.com...)
1848 // Input: $url = URL for which the thumbnail must be found.
1849 // $href = if provided, this URL will be followed instead of $url
1850 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1851 // Some of them may be missing.
1852 // Return an empty array if no thumbnail available.
1853 function computeThumbnail ( $url , $href = false )
1855 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1856 if ( $href == false ) $href = $url ;
1858 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1859 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1860 // ^^^^^^^^^^^ ^^^^^^^^^^^
1861 $domain = parse_url ( $url , PHP_URL_HOST
);
1862 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1864 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1865 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1866 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1868 if ( $domain == 'youtu.be' ) // Youtube short links
1870 $path = parse_url ( $url , PHP_URL_PATH
);
1871 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1872 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1874 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1876 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1877 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1878 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1881 if ( $domain == 'imgur.com' )
1883 $path = parse_url ( $url , PHP_URL_PATH
);
1884 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1885 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1886 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1887 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1888 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1890 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1891 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1893 if ( $domain == 'i.imgur.com' )
1895 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1896 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1897 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1899 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1901 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1903 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1904 return array ( 'src' => $thumburl ,
1905 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1908 if ( endsWith ( $domain , '.imageshack.us' ))
1910 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1911 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1913 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1914 return array ( 'src' => $thumburl ,
1915 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1919 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1920 // So we deport the thumbnail generation in order not to slow down page generation
1921 // (and we also cache the thumbnail)
1923 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1925 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1926 || $domain == 'vimeo.com'
1927 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1928 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1931 if ( $domain == 'vimeo.com' )
1932 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1933 $path = parse_url ( $url , PHP_URL_PATH
);
1934 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1936 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1937 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1938 $path = parse_url ( $url , PHP_URL_PATH
);
1939 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1941 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1942 { // Make sure this TED URL points to a video (/talks/...)
1943 $path = parse_url ( $url , PHP_URL_PATH
);
1944 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1946 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1947 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1948 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1951 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1952 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1953 // But using the extension will do.
1954 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1955 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1957 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1958 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1959 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1961 return array (); // No thumbnail.
1966 // Returns the HTML code to display a thumbnail for a link
1967 // with a link to the original URL.
1968 // Understands various services (youtube.com...)
1969 // Input: $url = URL for which the thumbnail must be found.
1970 // $href = if provided, this URL will be followed instead of $url
1971 // Returns '' if no thumbnail available.
1972 function thumbnail ( $url , $href = false )
1974 $t = computeThumbnail ( $url , $href );
1975 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1977 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1978 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1979 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1980 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1981 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1986 // Returns the HTML code to display a thumbnail for a link
1987 // for the picture wall (using lazy image loading)
1988 // Understands various services (youtube.com...)
1989 // Input: $url = URL for which the thumbnail must be found.
1990 // $href = if provided, this URL will be followed instead of $url
1991 // Returns '' if no thumbnail available.
1992 function lazyThumbnail ( $url , $href = false )
1994 $t = computeThumbnail ( $url , $href );
1995 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1997 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
2000 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
2002 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2003 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2004 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2005 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2008 // No-JavaScript fallback.
2009 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
2010 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2011 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2012 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2013 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2014 $html .= '></noscript></a>' ;
2020 // -----------------------------------------------------------------------------------------------
2022 // This function should NEVER be called if the file data/config.php exists.
2025 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2026 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2029 // This part makes sure sessions works correctly.
2030 // (Because on some hosts, session.save_path may not be set correctly,
2031 // or we may not have write access to it.)
2032 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2033 { // Step 2: Check if data in session is correct.
2034 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2035 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2036 echo 'It currently points to ' . session_save_path (). '<br>' ;
2037 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>' ;
2038 echo '<br><a href="?">Click to try again.</a></pre>' ;
2041 if (! isset ( $_SESSION [ 'session_tested' ]))
2042 { // Step 1 : Try to store data in session and reload page.
2043 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2044 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2046 if ( isset ( $_GET [ 'test_session' ]))
2047 { // Step 3: Sessions are OK. Remove test parameter from URL.
2048 header ( 'Location: ' . indexUrl ());
2052 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2055 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2056 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2057 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2058 $GLOBALS [ 'timezone' ] = $tz ;
2059 // Everything is ok, let's create config file.
2060 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2061 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2062 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2063 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . escape ( indexUrl ()) : $_POST [ 'title' ] );
2064 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2066 writeConfig ( $GLOBALS , isLoggedIn ());
2068 catch ( Exception
$e ) {
2070 'ERROR while writing config file after installation.' . PHP_EOL
.
2074 // TODO: do not handle exceptions/errors in JS.
2075 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2078 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2082 // Display config form:
2083 list ( $timezone_form , $timezone_js ) = templateTZform ();
2084 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2086 $PAGE = new pageBuilder
;
2087 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2088 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2089 $PAGE- > renderPage ( 'install' );
2093 // Generates the timezone selection form and JavaScript.
2094 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2095 // Output: array(html,js)
2096 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2097 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2098 function templateTZform ( $ptz = false )
2100 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2102 // Try to split the provided timezone.
2103 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2104 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2106 // Display config form:
2107 $timezone_form = '' ;
2109 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2110 // We split the list in continents/cities.
2111 $continents = array ();
2113 foreach ( timezone_identifiers_list () as $tz )
2115 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2116 $spos = strpos ( $tz , '/' );
2119 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2120 $continents [ $continent ]= 1 ;
2121 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2122 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2125 $continents_html = '' ;
2126 $continents = array_keys ( $continents );
2127 foreach ( $continents as $continent )
2128 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2129 $cities_html = $cities [ $pcontinent ];
2130 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2131 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2132 $timezone_js = "<script>" ;
2133 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2134 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2135 $timezone_js .= "</script>" ;
2136 return array ( $timezone_form , $timezone_js );
2138 return array ( '' , '' );
2141 // Tells if a timezone is valid or not.
2142 // If not valid, returns false.
2143 // If system does not support timezone list, returns false.
2144 function isTZvalid ( $continent , $city )
2146 $tz = $continent . '/' . $city ;
2147 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2149 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2154 if (! function_exists ( 'json_encode' )) {
2155 function json_encode ( $data ) {
2156 switch ( $type = gettype ( $data )) {
2160 return ( $data ? 'true' : 'false' );
2166 return '"' . addslashes ( $data ) . '"' ;
2168 $data = get_object_vars ( $data );
2170 $output_index_count = 0 ;
2171 $output_indexed = array ();
2172 $output_associative = array ();
2173 foreach ( $data as $key => $value ) {
2174 $output_indexed [] = json_encode ( $value );
2175 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2176 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2177 $output_index_count = NULL ;
2180 if ( $output_index_count !== NULL ) {
2181 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2183 return ' {' . implode(',', $output_associative) . '} ' ;
2186 return '' ; // Not supported
2193 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2194 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2195 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2196 This function is called by passing the URL:
2197 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2198 [URL] is the URL of the link (e.g. a flickr page)
2199 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2200 The function below will fetch the image from the webservice and store it in the cache.
2202 function genThumbnail ()
2204 // Make sure the parameters in the URL were generated by us.
2205 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2206 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2208 // Let's see if we don't already have the image for this URL in the cache.
2209 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2210 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2211 { // We have the thumbnail, just serve it:
2212 header ( 'Content-Type: image/jpeg' );
2213 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2216 // We may also serve a blank image (if service did not respond)
2217 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2218 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2220 header ( 'Content-Type: image/gif' );
2221 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2225 // Otherwise, generate the thumbnail.
2226 $url = $_GET [ 'url' ];
2227 $domain = parse_url ( $url , PHP_URL_HOST
);
2229 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2231 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2232 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2234 // Is this a link to an image, or to a flickr page ?
2236 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2237 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2238 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2239 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2241 else // This is a flickr page (html)
2243 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2244 if ( strpos ( $httpstatus , '200 OK' )!== false )
2246 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2247 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2248 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2250 // In albums (and some other pages), the link rel="image_src" is not provided,
2251 // but flickr provides:
2252 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2255 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2256 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2262 { // Let's download the image.
2263 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2264 if ( strpos ( $httpstatus , '200 OK' )!== false )
2266 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2267 header ( 'Content-Type: image/jpeg' );
2274 elseif ( $domain == 'vimeo.com' )
2276 // This is more complex: we have to perform a HTTP request, then parse the result.
2277 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2278 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2279 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2280 if ( strpos ( $httpstatus , '200 OK' )!== false )
2282 $t = unserialize ( $data );
2283 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2284 // Then we download the image and serve it to our client.
2285 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2286 if ( strpos ( $httpstatus , '200 OK' )!== false )
2288 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2289 header ( 'Content-Type: image/jpeg' );
2296 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2298 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2299 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2300 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
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 ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $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 );
2325 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2327 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2328 // http://xkcd.com/327/
2329 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2330 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2331 if ( strpos ( $httpstatus , '200 OK' )!== false )
2333 // Extract the link to the thumbnail
2334 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2335 if (! empty ( $matches [ 1 ]))
2336 { // Let's download the image.
2337 $imageurl = $matches [ 1 ];
2338 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2339 if ( strpos ( $httpstatus , '200 OK' )!== false )
2341 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2342 file_put_contents ( $filepath , $data ); // Save image to cache.
2343 if ( resizeImage ( $filepath ))
2345 header ( 'Content-Type: image/jpeg' );
2346 echo file_get_contents ( $filepath );
2356 // For all other domains, we try to download the image and make a thumbnail.
2357 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2358 if ( strpos ( $httpstatus , '200 OK' )!== false )
2360 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2361 file_put_contents ( $filepath , $data ); // Save image to cache.
2362 if ( resizeImage ( $filepath ))
2364 header ( 'Content-Type: image/jpeg' );
2365 echo file_get_contents ( $filepath );
2372 // Otherwise, return an empty image (8x8 transparent gif)
2373 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2374 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2375 header ( 'Content-Type: image/gif' );
2379 // Make a thumbnail of the image (to width: 120 pixels)
2380 // Returns true if success, false otherwise.
2381 function resizeImage ( $filepath )
2383 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2385 // Trick: some stupid people rename GIF as JPEG... or else.
2386 // So we really try to open each image type whatever the extension is.
2387 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2389 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2390 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2391 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2392 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2395 $ystart = 0 ; $yheight = $h ;
2396 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2397 $nw = 120 ; // Desired width
2398 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2400 $im2 = imagecreatetruecolor ( $nw , $nh );
2401 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2402 imageinterlace ( $im2 , true ); // For progressive JPEG.
2403 $tempname = $filepath . '_TEMP.jpg' ;
2404 imagejpeg ( $im2 , $tempname , 90 );
2408 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2412 // Invalidate caches when the database is changed or the user logs out.
2413 // (e.g. tags cache).
2414 function invalidateCaches ()
2416 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2417 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2421 mergeDeprecatedConfig ( $GLOBALS , isLoggedIn ());
2422 } catch ( Exception
$e ) {
2424 'ERROR while merging deprecated options.php file.' . PHP_EOL
.
2429 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2430 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2431 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2432 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2433 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2434 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];