]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
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 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1127 foreach ( $current_tags as $value ) {
1128 if ( $value === $_GET [ 'addtag' ]) {
1133 // Append the tag if necessary
1134 if ( empty ( $params [ 'searchtags' ])) {
1135 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1138 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1141 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1142 header ( 'Location: ?' . http_build_query ( $params ));
1146 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1147 if ( isset ( $_GET [ 'removetag' ]))
1149 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1150 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1151 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1152 if ( isset ( $params [ 'searchtags' ]))
1154 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1155 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1156 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1157 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1159 header ( 'Location: ?' . http_build_query ( $params ));
1163 // -------- User wants to change the number of links per page (linksperpage=...)
1164 if ( isset ( $_GET [ 'linksperpage' ]))
1166 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1167 // Make sure the referrer is Shaarli itself.
1169 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1170 $referer = $_SERVER [ 'HTTP_REFERER' ];
1171 header ( 'Location: ' . $referer );
1175 // -------- User wants to see only private links (toggle)
1176 if ( isset ( $_GET [ 'privateonly' ]))
1178 if ( empty ( $_SESSION [ 'privateonly' ]))
1180 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1184 unset ( $_SESSION [ 'privateonly' ]); // See all links
1186 // Make sure the referrer is Shaarli itself.
1188 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1189 $referer = $_SERVER [ 'HTTP_REFERER' ];
1190 header ( 'Location: ' . $referer );
1194 // -------- Handle other actions allowed for non-logged in users:
1197 // User tries to post new link but is not logged in:
1198 // Show login screen, then redirect to ?post=...
1199 if ( isset ( $_GET [ 'post' ]))
1201 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.
1205 // Same case as above except that user tried to access ?do=addlink without being logged in
1206 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1207 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1208 header ( 'Location: ?do=login&post=' );
1212 $PAGE = new pageBuilder
;
1213 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1214 $PAGE- > renderPage ( 'linklist' );
1215 exit ; // Never remove this one! All operations below are reserved for logged in user.
1218 // -------- All other functions are reserved for the registered user:
1220 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1221 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1223 $PAGE = new pageBuilder
;
1224 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1225 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1226 $PAGE- > renderPage ( 'tools' );
1230 // -------- User wants to change his/her password.
1231 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1233 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1234 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1236 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1238 // Make sure old password is correct.
1239 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1240 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1241 // Save new password
1242 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1243 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1245 writeConfig ( $GLOBALS , isLoggedIn ());
1247 catch ( Exception
$e ) {
1249 'ERROR while writing config file after changing password.' . PHP_EOL
.
1253 // TODO: do not handle exceptions/errors in JS.
1254 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1257 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1260 else // show the change password form.
1262 $PAGE = new pageBuilder
;
1263 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1264 $PAGE- > assign ( 'token' , getToken ());
1265 $PAGE- > renderPage ( 'changepassword' );
1270 // -------- User wants to change configuration
1271 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1273 if (! empty ( $_POST [ 'title' ]) )
1275 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1277 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1278 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1279 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1280 $GLOBALS [ 'timezone' ] = $tz ;
1281 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1282 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1283 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1284 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1285 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1286 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1287 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1288 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'hidePublicLinks' ]);
1290 writeConfig ( $GLOBALS , isLoggedIn ());
1292 catch ( Exception
$e ) {
1294 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1298 // TODO: do not handle exceptions/errors in JS.
1299 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1302 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1305 else // Show the configuration form.
1307 $PAGE = new pageBuilder
;
1308 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1309 $PAGE- > assign ( 'token' , getToken ());
1310 $PAGE- > assign ( 'title' , empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] );
1311 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] );
1312 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1313 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1314 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1315 $PAGE- > renderPage ( 'configure' );
1320 // -------- User wants to rename a tag or delete it
1321 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1323 if ( empty ( $_POST [ 'fromtag' ]))
1325 $PAGE = new pageBuilder
;
1326 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1327 $PAGE- > assign ( 'token' , getToken ());
1328 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1329 $PAGE- > renderPage ( 'changetag' );
1332 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1335 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1337 $needle = trim ( $_POST [ 'fromtag' ]);
1338 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1339 foreach ( $linksToAlter as $key => $value )
1341 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1342 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1343 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1344 $LINKSDB [ $key ]= $value ;
1346 $LINKSDB- > savedb (); // Save to disk.
1347 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1352 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1354 $needle = trim ( $_POST [ 'fromtag' ]);
1355 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1356 foreach ( $linksToAlter as $key => $value )
1358 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1359 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1360 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1361 $LINKSDB [ $key ]= $value ;
1363 $LINKSDB- > savedb (); // Save to disk.
1364 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1369 // -------- User wants to add a link without using the bookmarklet: Show form.
1370 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1372 $PAGE = new pageBuilder
;
1373 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1374 $PAGE- > renderPage ( 'addlink' );
1378 // -------- User clicked the "Save" button when editing a link: Save link to database.
1379 if ( isset ( $_POST [ 'save_edit' ]))
1381 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1382 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1383 $linkdate = $_POST [ 'lf_linkdate' ];
1384 $url = trim ( $_POST [ 'lf_url' ]);
1385 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1386 $url = 'http://' . $url ;
1387 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1388 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1389 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1390 $LINKSDB [ $linkdate ] = $link ;
1391 $LINKSDB- > savedb (); // Save to disk.
1394 // If we are called from the bookmarklet, we must close the popup:
1395 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1396 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1397 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1398 if ( strstr ( $returnurl , "do=addlink" )) { $returnurl
= '?' ; } //if we come from ?do=addlink, set returnurl to homepage instead
1399 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1403 // -------- User clicked the "Cancel" button when editing a link.
1404 if ( isset ( $_POST [ 'cancel_edit' ]))
1406 // If we are called from the bookmarklet, we must close the popup:
1407 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1408 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1409 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1410 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1414 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1415 if ( isset ( $_POST [ 'delete_link' ]))
1417 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1418 // We do not need to ask for confirmation:
1419 // - confirmation is handled by JavaScript
1420 // - we are protected from XSRF by the token.
1421 $linkdate = $_POST [ 'lf_linkdate' ];
1422 unset ( $LINKSDB [ $linkdate ]);
1423 $LINKSDB- > savedb (); // save to disk
1425 // If we are called from the bookmarklet, we must close the popup:
1426 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1427 // Pick where we're going to redirect
1428 // =============================================================
1429 // Basically, we can't redirect to where we were previously if it was a permalink
1430 // or an edit_link, because it would 404.
1432 // - / : nothing in $_GET, redirect to self
1433 // - /?page : redirect to self
1434 // - /?searchterm : redirect to self (there might be other links)
1435 // - /?searchtags : redirect to self
1436 // - /permalink : redirect to / (the link does not exist anymore)
1437 // - /?edit_link : redirect to / (the link does not exist anymore)
1438 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1439 // redirect is not satisfied, and only then redirect to /
1442 if ( count ( $_GET ) == 0 ||
1443 isset ( $_GET [ 'page' ]) ||
1444 isset ( $_GET [ 'searchterm' ]) ||
1445 isset ( $_GET [ 'searchtags' ])) {
1447 if ( isset ( $_POST [ 'returnurl' ])) {
1448 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1451 if ( $location === "?" &&
1452 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1453 $location = $_SERVER [ 'HTTP_REFERER' ];
1457 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1461 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1462 if ( isset ( $_GET [ 'edit_link' ]))
1464 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1465 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1466 $PAGE = new pageBuilder
;
1467 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1468 $PAGE- > assign ( 'link' , $link );
1469 $PAGE- > assign ( 'link_is_new' , false );
1470 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1471 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ));
1472 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1473 $PAGE- > renderPage ( 'editlink' );
1477 // -------- User want to post a new link: Display link edit form.
1478 if ( isset ( $_GET [ 'post' ]))
1483 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1484 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' ,
1485 '/[ \? &]utm_campaign=[^&]*/' ,
1486 '/[ \? &]utm_medium=[^&]*/' ,
1487 '/#xtor=RSS-[^&]*/' ,
1489 '/[ \? &]__scoop[^&]*/' ,
1491 '/[ \? &]action_ref_map=[^&]*/' ,
1492 '/[ \? &]action_type_map=[^&]*/' ,
1493 '/[ \? &]action_object_map=[^&]*/' ,
1494 '/[ \? &]utm_content=[^&]*/' ,
1498 foreach ( $annoyingpatterns as $pattern )
1500 $url = preg_replace ( $pattern , "" , $url );
1503 $link_is_new = false ;
1504 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1507 $link_is_new = true ; // This is a new link
1508 $linkdate = strval ( date ( 'Ymd_His' ));
1509 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1510 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1511 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1512 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1513 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1514 // 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.)
1515 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1517 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1518 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1519 if ( strpos ( $status , '200 OK' )!== false )
1521 // Look for charset in html header.
1522 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1524 // If found, extract encoding.
1525 if (! empty ( $meta [ 0 ]))
1527 // Get encoding specified in header.
1528 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1529 // If charset not found, use utf-8.
1530 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1532 else { $html_charset
= 'utf-8' ; }
1535 $title = html_extract_title ( $data );
1538 // Re-encode title in utf-8 if necessary.
1539 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1543 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1545 $url = '?' . smallHash ( $linkdate );
1548 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1551 $PAGE = new pageBuilder
;
1552 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1553 $PAGE- > assign ( 'link' , $link );
1554 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1555 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1556 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1557 $PAGE- > assign ( 'source' ,( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ));
1558 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1559 $PAGE- > renderPage ( 'editlink' );
1563 // -------- Export as Netscape Bookmarks HTML file.
1564 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1566 if ( empty ( $_GET [ 'what' ]))
1568 $PAGE = new pageBuilder
;
1569 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1570 $PAGE- > renderPage ( 'export' );
1573 $exportWhat = $_GET [ 'what' ];
1574 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1576 header ( 'Content-Type: text/html; charset=utf-8' );
1577 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1578 $currentdate = date ( 'Y/m/d H:i:s' );
1580 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1581 <!-- This is an automatically generated file.
1582 It will be read and overwritten.
1584 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1585 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1586 <TITLE>Bookmarks</TITLE>
1589 foreach ( $LINKSDB as $link )
1591 if ( $exportWhat == 'all' ||
1592 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1593 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1595 echo '<DT><A HREF="' . $link [ 'url' ]. '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1596 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . str_replace ( ' ' , ',' , $link [ 'tags' ]). '"' ;
1597 echo '>' . $link [ 'title' ]. "</A> \n " ;
1598 if ( $link [ 'description' ]!= '' ) echo '<DD>' . $link [ 'description' ]. " \n " ;
1604 // -------- User is uploading a file for import
1605 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1607 // If file is too big, some form field may be missing.
1608 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1610 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1611 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>' ;
1614 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1619 // -------- Show upload/import dialog:
1620 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1622 $PAGE = new pageBuilder
;
1623 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1624 $PAGE- > assign ( 'token' , getToken ());
1625 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1626 $PAGE- > renderPage ( 'import' );
1630 // -------- Otherwise, simply display search form and links:
1631 $PAGE = new pageBuilder
;
1632 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1633 $PAGE- > renderPage ( 'linklist' );
1637 // -----------------------------------------------------------------------------------------------
1638 // Process the import file form.
1639 function importFile ()
1641 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1642 $LINKSDB = new LinkDB (
1643 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1644 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1645 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1647 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1648 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1649 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1650 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1651 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1656 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1658 // Then import the bookmarks.
1659 if ( $type == 'netscape' )
1661 // This is a standard Netscape-style bookmark file.
1662 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1663 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1665 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1666 $d = explode ( '<DD>' , $html );
1667 if ( startswith ( $d [ 0 ], '<A ' ))
1669 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1670 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1671 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1672 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1674 foreach ( $matches as $m )
1676 $attr = $m [ 1 ]; $value = $m [ 2 ];
1677 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1678 elseif ( $attr == 'ADD_DATE' )
1680 $raw_add_date = intval ( $value );
1681 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1683 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1684 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1686 if ( $link [ 'url' ]!= '' )
1688 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1689 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1691 { // Link not in database, let's import it...
1692 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1694 // Make sure date/time is not already used by another link.
1695 // (Some bookmark files have several different links with the same ADD_DATE)
1696 // We increment date by 1 second until we find a date which is not used in DB.
1697 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1698 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1699 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1700 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1703 else // Link already present in database.
1706 { // If overwrite is required, we import link data, except date/time.
1707 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1708 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1718 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1722 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1726 // -----------------------------------------------------------------------------------------------
1727 // Template for the list of links (<div id="linklist">)
1728 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1729 function buildLinkList ( $PAGE , $LINKSDB )
1731 // ---- Filter link database according to parameters
1732 $linksToDisplay = array ();
1735 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1737 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1738 $search_crits = escape ( trim ( $_GET [ 'searchterm' ]));
1739 $search_type = 'fulltext' ;
1741 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1743 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1744 $search_crits = explode ( ' ' , escape ( trim ( $_GET [ 'searchtags' ])));
1745 $search_type = 'tags' ;
1747 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1749 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1750 if ( count ( $linksToDisplay )== 0 )
1752 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1753 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1754 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1757 $search_type = 'permalink' ;
1760 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1763 // Option: Show only private links
1764 if (! empty ( $_SESSION [ 'privateonly' ]))
1767 foreach ( $linksToDisplay as $linkdate => $link )
1769 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1771 $linksToDisplay = $tmp ;
1774 // ---- Handle paging.
1775 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1776 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1777 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1779 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1781 // If there is only a single link, we change on-the-fly the title of the page.
1782 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1784 // Select articles according to paging.
1785 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1786 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1787 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1788 $page = ( $page < 1 ? 1 : $page );
1789 $page = ( $page > $pagecount ? $pagecount : $page );
1790 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1791 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1792 $linkDisp = array (); // Links to display
1793 while ( $i < $end && $i < count ( $keys ))
1795 $link = $linksToDisplay [ $keys [ $i ]];
1796 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
1797 $title = $link [ 'title' ];
1798 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1799 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1800 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1801 $taglist = explode ( ' ' , $link [ 'tags' ]);
1802 uasort ( $taglist , 'strcasecmp' );
1803 $link [ 'taglist' ]= $taglist ;
1805 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.
1806 strlen ( $link [ "url" ]) === 7 ) {
1807 $link [ "url" ] = indexUrl () . $link [ "url" ];
1810 $linkDisp [ $keys [ $i ]] = $link ;
1814 // Compute paging navigation
1815 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1816 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1818 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1819 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1821 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1823 // Fill all template fields.
1824 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1825 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1826 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1827 $PAGE- > assign ( 'page_current' , $page );
1828 $PAGE- > assign ( 'page_max' , $pagecount );
1829 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1830 $PAGE- > assign ( 'search_type' , $search_type );
1831 $PAGE- > assign ( 'search_crits' , $search_crits );
1832 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1833 $PAGE- > assign ( 'token' , $token );
1834 $PAGE- > assign ( 'links' , $linkDisp );
1835 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1839 // Compute the thumbnail for a link.
1841 // With a link to the original URL.
1842 // Understands various services (youtube.com...)
1843 // Input: $url = URL for which the thumbnail must be found.
1844 // $href = if provided, this URL will be followed instead of $url
1845 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1846 // Some of them may be missing.
1847 // Return an empty array if no thumbnail available.
1848 function computeThumbnail ( $url , $href = false )
1850 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1851 if ( $href == false ) $href = $url ;
1853 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1854 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1855 // ^^^^^^^^^^^ ^^^^^^^^^^^
1856 $domain = parse_url ( $url , PHP_URL_HOST
);
1857 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1859 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1860 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1861 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1863 if ( $domain == 'youtu.be' ) // Youtube short links
1865 $path = parse_url ( $url , PHP_URL_PATH
);
1866 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1867 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1869 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1871 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1872 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1873 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1876 if ( $domain == 'imgur.com' )
1878 $path = parse_url ( $url , PHP_URL_PATH
);
1879 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1880 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1881 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1882 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1883 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1885 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1886 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1888 if ( $domain == 'i.imgur.com' )
1890 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1891 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1892 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1894 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1896 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1898 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1899 return array ( 'src' => $thumburl ,
1900 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1903 if ( endsWith ( $domain , '.imageshack.us' ))
1905 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1906 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1908 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1909 return array ( 'src' => $thumburl ,
1910 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1914 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1915 // So we deport the thumbnail generation in order not to slow down page generation
1916 // (and we also cache the thumbnail)
1918 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1920 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1921 || $domain == 'vimeo.com'
1922 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1923 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1926 if ( $domain == 'vimeo.com' )
1927 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1928 $path = parse_url ( $url , PHP_URL_PATH
);
1929 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1931 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1932 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1933 $path = parse_url ( $url , PHP_URL_PATH
);
1934 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1936 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1937 { // Make sure this TED URL points to a video (/talks/...)
1938 $path = parse_url ( $url , PHP_URL_PATH
);
1939 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1941 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1942 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1943 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1946 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1947 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1948 // But using the extension will do.
1949 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1950 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1952 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1953 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1954 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1956 return array (); // No thumbnail.
1961 // Returns the HTML code to display a thumbnail for a link
1962 // with a link to the original URL.
1963 // Understands various services (youtube.com...)
1964 // Input: $url = URL for which the thumbnail must be found.
1965 // $href = if provided, this URL will be followed instead of $url
1966 // Returns '' if no thumbnail available.
1967 function thumbnail ( $url , $href = false )
1969 $t = computeThumbnail ( $url , $href );
1970 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1972 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1973 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1974 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1975 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1976 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1981 // Returns the HTML code to display a thumbnail for a link
1982 // for the picture wall (using lazy image loading)
1983 // Understands various services (youtube.com...)
1984 // Input: $url = URL for which the thumbnail must be found.
1985 // $href = if provided, this URL will be followed instead of $url
1986 // Returns '' if no thumbnail available.
1987 function lazyThumbnail ( $url , $href = false )
1989 $t = computeThumbnail ( $url , $href );
1990 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1992 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
1995 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
1997 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1998 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1999 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2000 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2003 // No-JavaScript fallback.
2004 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
2005 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2006 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2007 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2008 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2009 $html .= '></noscript></a>' ;
2015 // -----------------------------------------------------------------------------------------------
2017 // This function should NEVER be called if the file data/config.php exists.
2020 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2021 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2024 // This part makes sure sessions works correctly.
2025 // (Because on some hosts, session.save_path may not be set correctly,
2026 // or we may not have write access to it.)
2027 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2028 { // Step 2: Check if data in session is correct.
2029 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2030 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2031 echo 'It currently points to ' . session_save_path (). '<br>' ;
2032 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>' ;
2033 echo '<br><a href="?">Click to try again.</a></pre>' ;
2036 if (! isset ( $_SESSION [ 'session_tested' ]))
2037 { // Step 1 : Try to store data in session and reload page.
2038 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2039 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2041 if ( isset ( $_GET [ 'test_session' ]))
2042 { // Step 3: Sessions are OK. Remove test parameter from URL.
2043 header ( 'Location: ' . indexUrl ());
2047 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2050 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2051 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2052 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2053 $GLOBALS [ 'timezone' ] = $tz ;
2054 // Everything is ok, let's create config file.
2055 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2056 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2057 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2058 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . escape ( indexUrl ()) : $_POST [ 'title' ] );
2059 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2061 writeConfig ( $GLOBALS , isLoggedIn ());
2063 catch ( Exception
$e ) {
2065 'ERROR while writing config file after installation.' . PHP_EOL
.
2069 // TODO: do not handle exceptions/errors in JS.
2070 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2073 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2077 // Display config form:
2078 list ( $timezone_form , $timezone_js ) = templateTZform ();
2079 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2081 $PAGE = new pageBuilder
;
2082 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2083 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2084 $PAGE- > renderPage ( 'install' );
2088 // Generates the timezone selection form and JavaScript.
2089 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2090 // Output: array(html,js)
2091 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2092 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2093 function templateTZform ( $ptz = false )
2095 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2097 // Try to split the provided timezone.
2098 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2099 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2101 // Display config form:
2102 $timezone_form = '' ;
2104 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2105 // We split the list in continents/cities.
2106 $continents = array ();
2108 foreach ( timezone_identifiers_list () as $tz )
2110 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2111 $spos = strpos ( $tz , '/' );
2114 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2115 $continents [ $continent ]= 1 ;
2116 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2117 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2120 $continents_html = '' ;
2121 $continents = array_keys ( $continents );
2122 foreach ( $continents as $continent )
2123 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2124 $cities_html = $cities [ $pcontinent ];
2125 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2126 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2127 $timezone_js = "<script>" ;
2128 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2129 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2130 $timezone_js .= "</script>" ;
2131 return array ( $timezone_form , $timezone_js );
2133 return array ( '' , '' );
2136 // Tells if a timezone is valid or not.
2137 // If not valid, returns false.
2138 // If system does not support timezone list, returns false.
2139 function isTZvalid ( $continent , $city )
2141 $tz = $continent . '/' . $city ;
2142 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2144 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2149 if (! function_exists ( 'json_encode' )) {
2150 function json_encode ( $data ) {
2151 switch ( $type = gettype ( $data )) {
2155 return ( $data ? 'true' : 'false' );
2161 return '"' . addslashes ( $data ) . '"' ;
2163 $data = get_object_vars ( $data );
2165 $output_index_count = 0 ;
2166 $output_indexed = array ();
2167 $output_associative = array ();
2168 foreach ( $data as $key => $value ) {
2169 $output_indexed [] = json_encode ( $value );
2170 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2171 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2172 $output_index_count = NULL ;
2175 if ( $output_index_count !== NULL ) {
2176 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2178 return ' {' . implode(',', $output_associative) . '} ' ;
2181 return '' ; // Not supported
2188 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2189 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2190 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2191 This function is called by passing the URL:
2192 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2193 [URL] is the URL of the link (e.g. a flickr page)
2194 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2195 The function below will fetch the image from the webservice and store it in the cache.
2197 function genThumbnail ()
2199 // Make sure the parameters in the URL were generated by us.
2200 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2201 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2203 // Let's see if we don't already have the image for this URL in the cache.
2204 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2205 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2206 { // We have the thumbnail, just serve it:
2207 header ( 'Content-Type: image/jpeg' );
2208 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2211 // We may also serve a blank image (if service did not respond)
2212 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2213 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2215 header ( 'Content-Type: image/gif' );
2216 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2220 // Otherwise, generate the thumbnail.
2221 $url = $_GET [ 'url' ];
2222 $domain = parse_url ( $url , PHP_URL_HOST
);
2224 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2226 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2227 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2229 // Is this a link to an image, or to a flickr page ?
2231 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2232 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2233 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2234 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2236 else // This is a flickr page (html)
2238 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2239 if ( strpos ( $httpstatus , '200 OK' )!== false )
2241 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2242 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2243 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2245 // In albums (and some other pages), the link rel="image_src" is not provided,
2246 // but flickr provides:
2247 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2250 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2251 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2257 { // Let's download the image.
2258 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2259 if ( strpos ( $httpstatus , '200 OK' )!== false )
2261 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2262 header ( 'Content-Type: image/jpeg' );
2269 elseif ( $domain == 'vimeo.com' )
2271 // This is more complex: we have to perform a HTTP request, then parse the result.
2272 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2273 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2274 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2275 if ( strpos ( $httpstatus , '200 OK' )!== false )
2277 $t = unserialize ( $data );
2278 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2279 // Then we download the image and serve it to our client.
2280 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2281 if ( strpos ( $httpstatus , '200 OK' )!== false )
2283 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2284 header ( 'Content-Type: image/jpeg' );
2291 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2293 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2294 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2295 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2296 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2297 if ( strpos ( $httpstatus , '200 OK' )!== false )
2299 // Extract the link to the thumbnail
2300 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2301 if (! empty ( $matches [ 1 ]))
2302 { // Let's download the image.
2303 $imageurl = $matches [ 1 ];
2304 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2305 if ( strpos ( $httpstatus , '200 OK' )!== false )
2307 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2308 file_put_contents ( $filepath , $data ); // Save image to cache.
2309 if ( resizeImage ( $filepath ))
2311 header ( 'Content-Type: image/jpeg' );
2312 echo file_get_contents ( $filepath );
2320 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2322 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2323 // http://xkcd.com/327/
2324 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2325 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2326 if ( strpos ( $httpstatus , '200 OK' )!== false )
2328 // Extract the link to the thumbnail
2329 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2330 if (! empty ( $matches [ 1 ]))
2331 { // Let's download the image.
2332 $imageurl = $matches [ 1 ];
2333 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2334 if ( strpos ( $httpstatus , '200 OK' )!== false )
2336 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2337 file_put_contents ( $filepath , $data ); // Save image to cache.
2338 if ( resizeImage ( $filepath ))
2340 header ( 'Content-Type: image/jpeg' );
2341 echo file_get_contents ( $filepath );
2351 // For all other domains, we try to download the image and make a thumbnail.
2352 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2353 if ( strpos ( $httpstatus , '200 OK' )!== false )
2355 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2356 file_put_contents ( $filepath , $data ); // Save image to cache.
2357 if ( resizeImage ( $filepath ))
2359 header ( 'Content-Type: image/jpeg' );
2360 echo file_get_contents ( $filepath );
2367 // Otherwise, return an empty image (8x8 transparent gif)
2368 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2369 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2370 header ( 'Content-Type: image/gif' );
2374 // Make a thumbnail of the image (to width: 120 pixels)
2375 // Returns true if success, false otherwise.
2376 function resizeImage ( $filepath )
2378 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2380 // Trick: some stupid people rename GIF as JPEG... or else.
2381 // So we really try to open each image type whatever the extension is.
2382 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2384 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2385 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2386 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2387 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2390 $ystart = 0 ; $yheight = $h ;
2391 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2392 $nw = 120 ; // Desired width
2393 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2395 $im2 = imagecreatetruecolor ( $nw , $nh );
2396 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2397 imageinterlace ( $im2 , true ); // For progressive JPEG.
2398 $tempname = $filepath . '_TEMP.jpg' ;
2399 imagejpeg ( $im2 , $tempname , 90 );
2403 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2407 // Invalidate caches when the database is changed or the user logs out.
2408 // (e.g. tags cache).
2409 function invalidateCaches ()
2411 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2412 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2416 mergeDeprecatedConfig ( $GLOBALS , isLoggedIn ());
2417 } catch ( Exception
$e ) {
2419 'ERROR while merging deprecated options.php file.' . PHP_EOL
.
2424 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2425 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2426 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2427 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2428 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2429 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];