]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
fedad2b93ecd99cd612c4d051f4a72126705b7f8
2 // Shaarli 0.0.42 beta - 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 creating the file /config/options.php)
15 $GLOBALS [ 'config' ][ 'DATADIR' ] = 'data' ; // Data subdirectory
16 $GLOBALS [ 'config' ][ 'CONFIG_FILE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/config.php' ; // Configuration file (user login/password)
17 $GLOBALS [ 'config' ][ 'DATASTORE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/datastore.php' ; // Data storage file.
18 $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ] = 20 ; // Default links per page.
19 $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/ipbans.php' ; // File storage for failures and bans.
20 $GLOBALS [ 'config' ][ 'BAN_AFTER' ] = 4 ; // Ban IP after this many failures.
21 $GLOBALS [ 'config' ][ 'BAN_DURATION' ] = 1800 ; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
22 $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ] = false ; // If true, anyone can add/edit/delete links without having to login
23 $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] = false ; // If true, the moment when links were saved are not shown to users that are not logged in.
24 $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ] = true ; // Enable thumbnails in links.
25 $GLOBALS [ 'config' ][ 'CACHEDIR' ] = 'cache' ; // Cache directory for thumbnails for SLOW services (like flickr)
26 $GLOBALS [ 'config' ][ 'PAGECACHE' ] = 'pagecache' ; // Page cache directory.
27 $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ] = true ; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce webspace usage.
28 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
29 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp' ; // Raintpl cache directory
30 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailling slash!)
31 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
32 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
33 // Note: You must have publisher.php in the same directory as Shaarli index.php
34 // -----------------------------------------------------------------------------------------------
35 // You should not touch below (or at your own risks !)
36 // Optionnal config file.
37 if ( is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' )) require ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' );
39 define ( 'shaarli_version' , '0.0.42 beta' );
40 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in php code.
41 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in php code.
42 // http://server.com/x/shaarli --> /shaarli/
43 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
45 // Force cookie path (but do not change lifetime)
46 $cookie = session_get_cookie_params ();
47 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
48 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set default cookie expiration and path.
50 // Set session parameters on server side.
51 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
52 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
53 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL)
54 ini_set ( 'session.use_trans_sid' , false ); // Prevent php to use sessionID in URL if cookies are disabled.
55 session_name ( 'shaarli' );
56 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
59 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
60 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
61 ini_set ( 'post_max_size' , '16M' );
62 ini_set ( 'upload_max_filesize' , '16M' );
64 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
65 //error_reporting(-1); // See all errors (for debugging only)
67 include "inc/rain.tpl.class.php" ; //include Rain TPL
68 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
69 if (! is_dir ( $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'RAINTPL_TMP' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'RAINTPL_TMP' ], 0705 ); }
70 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
72 ob_start (); // Output buffering for the page cache.
75 // In case stupid admin has left magic_quotes enabled in php.ini:
76 if ( get_magic_quotes_gpc ())
78 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
79 $_POST = array_map ( 'stripslashes_deep' , $_POST );
80 $_GET = array_map ( 'stripslashes_deep' , $_GET );
81 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
84 // Prevent caching on client side or proxy: (yes, it's ugly)
85 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
86 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
87 header ( "Cache-Control: post-check=0, pre-check=0" , false );
88 header ( "Pragma: no-cache" );
90 // Directories creations (Note that your web host may require differents rights than 705.)
91 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory (' . realpath ( dirname ( __FILE__
)). ').</pre>' );
92 if (! is_dir ( $GLOBALS [ 'config' ][ 'DATADIR' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'DATADIR' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'DATADIR' ], 0705 ); }
93 if (! is_dir ( $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'RAINTPL_TMP' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'RAINTPL_TMP' ], 0705 ); } // For RainTPL temporary files.
94 if (! is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/.htaccess' )) { file_put_contents ( $GLOBALS
[ 'config' ][ 'DATADIR' ]. '/.htaccess' , "Allow from none \n Deny from all \n " ); } // Protect data files.
95 // Second check to see if Shaarli can write in its directory, because on some hosts is_writable() is not reliable.
96 if (! is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/.htaccess' )) die ( '<pre>ERROR: Shaarli does not have the right to write in its data directory (' . realpath ( $GLOBALS [ 'config' ][ 'DATADIR' ]). ').</pre>' );
97 if ( $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ])
99 if (! is_dir ( $GLOBALS [ 'config' ][ 'CACHEDIR' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'CACHEDIR' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'CACHEDIR' ], 0705 ); }
100 if (! is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/.htaccess' )) { file_put_contents ( $GLOBALS
[ 'config' ][ 'CACHEDIR' ]. '/.htaccess' , "Allow from none \n Deny from all \n " ); } // Protect data files.
103 // Handling of old config file which do not have the new parameters.
104 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( indexUrl ());
105 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
106 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
107 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
108 if ( empty ( $GLOBALS [ 'disablejquery' ])) $GLOBALS [ 'disablejquery' ]= false ;
109 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
110 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
111 // I really need to rewrite Shaarli with a proper configuation manager.
113 // Run config screen if first run:
114 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
116 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
118 // a token depending of deployment salt, user password, and the current ip
119 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
121 autoLocale (); // Sniff browser language and set date format accordingly.
122 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
125 function checkphpversion ()
127 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
129 header ( 'Content-Type: text/plain; charset=utf-8' );
130 echo 'Your server supports php ' . PHP_VERSION
. '. Shaarli requires at least php 5.1.0, and thus cannot run. Sorry.' ;
135 // Checks if an update is available for Shaarli.
136 // (at most once a day, and only for registered user.)
137 // Output: '' = no new version.
138 // other= the available version.
139 function checkUpdate ()
141 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
143 // Get latest version number at most once a day.
144 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
146 $version = shaarli_version
;
147 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://sebsauvage.net/files/shaarli_version.txt' , 2 );
148 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = $data ;
149 // If failed, nevermind. We don't want to bother the user with that.
150 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
153 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
154 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
159 // -----------------------------------------------------------------------------------------------
160 // Simple cache system (mainly for the RSS/ATOM feeds).
164 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
165 private $shouldBeCached ; // boolean: Should this url be cached ?
166 private $filename ; // Name of the cache file for this url
169 $url = url (typically the value returned by pageUrl())
170 $shouldBeCached = boolean. If false, the cache will be disabled.
172 public function __construct ( $url , $shouldBeCached )
175 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
176 $this- > shouldBeCached
= $shouldBeCached ;
179 // If the page should be cached and a cached version exists,
180 // returns the cached version (otherwise, return null).
181 public function cachedVersion ()
183 if (! $this- > shouldBeCached
) return null ;
184 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
188 // Put a page in the cache.
189 public function cache ( $page )
191 if (! $this- > shouldBeCached
) return ;
192 if (! is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ], 0705 ); }
193 file_put_contents ( $this- > filename
, $page );
196 // Purge the whole cache.
197 // (call with pageCache::purgeCache())
198 public static function purgeCache ()
200 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
202 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
203 if ( $handler !== false )
205 while (( $filename = readdir ( $handler ))!== false )
207 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
217 // -----------------------------------------------------------------------------------------------
219 function logm ( $message )
221 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
222 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
225 // Same as nl2br(), but escapes < and >
226 function nl2br_escaped ( $html )
228 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
231 /* Returns the small hash of a string, using RFC 4648 base64url format
232 eg. smallHash('20111006_131924') --> yZH23w
234 - are unique (well, as unique as crc32, at last)
235 - are always 6 characters long.
236 - only use the following characters: a-z A-Z 0-9 - _ @
237 - are NOT cryptographically secure (they CAN be forged)
238 In Shaarli, they are used as a tinyurl-like link to individual entries.
240 function smallHash ( $text )
242 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
243 return strtr ( $t , '+/' , '-_' );
246 // In a string, converts urls to clickable links.
247 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
248 function text2clickable ( $url )
250 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
251 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
254 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
255 // even in the absence of <pre> (This is used in description to keep text formatting)
256 function keepMultipleSpaces ( $text )
258 return str_replace ( ' ' , ' ' , $text );
261 // ------------------------------------------------------------------------------------------
262 // Sniff browser language to display dates in the right format automatically.
263 // (Note that is may not work on your server if the corresponding local is not installed.)
264 function autoLocale ()
266 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
267 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
268 { // (It's a bit crude, but it works very well. Prefered language is always presented first.)
269 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
271 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
274 // ------------------------------------------------------------------------------------------
275 // PubSubHubbub protocol support (if enabled) [UNTESTED]
276 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
277 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
280 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
282 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
284 indexUrl (). '?do=atom' ,
287 $p- > publish_update ( $topic_url );
291 // ------------------------------------------------------------------------------------------
292 // Session management
294 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
297 $ip = $_SERVER [ "REMOTE_ADDR" ];
298 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
299 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
300 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
304 function fillSessionInfo () {
305 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // generate unique random number (different than phpsessionid)
306 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
307 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
308 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
311 // Check that user/password is correct.
312 function check_auth ( $login , $password )
314 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
315 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
316 { // Login/password is correct.
318 logm ( 'Login successful' );
321 logm ( 'Login failed for user ' . $login );
325 // Returns true if the user is logged in.
326 function isLoggedIn ()
328 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) return true ;
330 if (! isset ( $GLOBALS [ 'login' ])) return false ; // Shaarli is not configured yet.
332 if (@ $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
)
337 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
338 if ( empty ( $_SESSION [ 'uid' ]) || ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) || time ()>= $_SESSION [ 'expires_on' ])
343 if (! empty ( $_SESSION [ 'longlastingsession' ])) $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
344 else $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
350 function logout () { if ( isset ( $_SESSION
)) { unset ( $_SESSION
[ 'uid' ]); unset ( $_SESSION
[ 'ip' ]); unset ( $_SESSION
[ 'username' ]); unset ( $_SESSION
[ 'privateonly' ]); }
351 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
355 // ------------------------------------------------------------------------------------------
356 // Brute force protection system
357 // Several consecutive failed logins will ban the IP address for 30 minutes.
358 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 ?>" );
359 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
360 // Signal a failed login. Will ban the IP if too many failures:
361 function ban_loginFailed ()
363 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
364 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
365 $gb [ 'FAILURES' ][ $ip ] ++
;
366 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
368 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
369 logm ( 'IP address banned from login' );
371 $GLOBALS [ 'IPBANS' ] = $gb ;
372 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
375 // Signals a successful login. Resets failed login counter.
376 function ban_loginOk ()
378 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
379 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
380 $GLOBALS [ 'IPBANS' ] = $gb ;
381 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
384 // Checks if the user CAN login. If 'true', the user can try to login.
385 function ban_canLogin ()
387 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
388 if ( isset ( $gb [ 'BANS' ][ $ip ]))
390 // User is banned. Check if the ban has expired:
391 if ( $gb [ 'BANS' ][ $ip ]<= time ())
392 { // Ban expired, user can try to login again.
394 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
395 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
396 return true ; // Ban has expired, user can login.
398 return false ; // User is banned.
400 return true ; // User is not banned.
403 // ------------------------------------------------------------------------------------------
404 // Process login form: Check if login/password is correct.
405 if ( isset ( $_POST [ 'login' ]))
407 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
408 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
409 { // Login/password is ok.
411 // If user wants to keep the session cookie even after the browser closes:
412 if (! empty ( $_POST [ 'longlastingsession' ]))
414 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
415 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
416 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
418 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
419 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set session cookie expiration on client side
420 // Note: Never forget the trailing slash on the cookie path !
421 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
423 else // Standard session expiration (=when browser closes)
425 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
426 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // 0 means "When browser closes"
427 session_regenerate_id ( true );
429 // Optional redirect after login:
430 if ( isset ( $_GET [ 'post' ])) { header ( 'Location: ?post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' )); exit ; }
431 if ( isset ( $_POST [ 'returnurl' ]))
433 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
434 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
436 header ( 'Location: ?' ); exit ;
442 if ( isset ( $_GET [ 'post' ])) { $redir
= '&post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' ); }
443 echo '<script language="JavaScript">alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
448 // ------------------------------------------------------------------------------------------
449 // Misc utility functions:
451 // Returns the server URL (including port and http/https), without path.
452 // eg. "http://myserver.com:8080"
453 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
456 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
457 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
458 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'HTTP_HOST' ]. $serverport ;
461 // Returns the absolute URL of current script, without the query.
462 // (eg. http://sebsauvage.net/links/)
465 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
466 // If the script is named 'index.php', we remove it (for better looking URLs,
467 // eg. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
468 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
469 return serverUrl () . $scriptname ;
472 // Returns the absolute URL of current script, WITH the query.
473 // (eg. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
476 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
479 // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
480 function return_bytes ( $val )
482 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
485 case 'g' : $val *= 1024 ;
486 case 'm' : $val *= 1024 ;
487 case 'k' : $val *= 1024 ;
492 // Try to determine max file size for uploads (POST).
493 // Returns an integer (in bytes)
494 function getMaxFileSize ()
496 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
497 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
498 // Return the smaller of two:
499 $maxsize = min ( $size1 , $size2 );
500 // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000)
504 // Tells if a string start with a substring or not.
505 function startsWith ( $haystack , $needle , $case = true )
507 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
508 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
511 // Tells if a string ends with a substring or not.
512 function endsWith ( $haystack , $needle , $case = true )
514 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
515 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
518 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
519 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
520 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
521 function linkdate2timestamp ( $linkdate )
524 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
525 return mktime ( $h , $m , $s , $M , $D , $Y );
528 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
529 (used to build the pubDate attribute in RSS feed.) */
530 function linkdate2rfc822 ( $linkdate )
532 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
535 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
536 (used to build the updated tags in ATOM feed.) */
537 function linkdate2iso8601 ( $linkdate )
539 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
542 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
543 (used to display link date on screen)
544 The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
545 function linkdate2locale ( $linkdate )
547 return utf8_encode ( strftime ( '%c' , linkdate2timestamp ( $linkdate ))); // %c is for automatic date format according to locale.
548 // Note that if you use a local which is not installed on your webserver,
549 // the date will not be displayed in the chosen locale, but probably in US notation.
552 // Parse HTTP response headers and return an associative array.
553 function http_parse_headers_shaarli ( $headers )
556 foreach ( $headers as $header )
558 $i = strpos ( $header , ': ' );
561 $key = substr ( $header , 0 , $i );
562 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
570 Input: $url : url to get (http://...)
571 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
572 Output: An array. [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message
573 [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
575 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
576 if (strpos($httpstatus,'200 OK')!==false)
577 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
579 echo 'There was an error: '.htmlspecialchars($httpstatus)
581 function getHTTP ( $url , $timeout = 30 )
585 $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
586 $context = stream_context_create ( $options );
587 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
588 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
589 $httpStatus = $http_response_header [ 0 ]; // eg. "HTTP/1.1 200 OK"
590 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
591 return array ( $httpStatus , $responseHeaders , $data );
593 catch ( Exception
$e ) // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
595 return array ( $e- > getMessage (), '' , '' );
599 // Extract title from an HTML document.
600 // (Returns an empty string if not found.)
601 function html_extract_title ( $html )
603 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
606 // ------------------------------------------------------------------------------------------
607 // Token management for XSRF protection
608 // Token should be used in any form which acts on data (create,update,delete,import...).
609 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
614 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
615 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
619 // Tells if a token is ok. Using this function will destroy the token.
621 function tokenOk ( $token )
623 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
625 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
626 return true ; // Token is ok.
628 return false ; // Wrong token, or already used.
631 // ------------------------------------------------------------------------------------------
632 /* This class is in charge of building the final page.
633 (This is basically a wrapper around RainTPL which pre-fills some fields.)
635 p.assign('myfield','myvalue');
636 p.renderPage('mytemplate');
641 private $tpl ; // RainTPL template
643 function __construct ()
648 private function initialize ()
650 $this- > tpl
= new RainTPL
;
651 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
652 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
653 $searchcrits = '' ; // Search criteria
654 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
655 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
656 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
657 $this- > tpl
-> assign ( 'source' , indexUrl ());
658 $this- > tpl
-> assign ( 'version' , shaarli_version
);
659 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
660 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
661 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links ?
662 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
663 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
664 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
665 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
669 // The following assign() method is basically the same as RainTPL (except that it's lazy)
670 public function assign ( $what , $where )
672 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
673 $this- > tpl
-> assign ( $what , $where );
676 // Render a specific page (using a template).
677 // eg. pb.renderPage('picwall')
678 public function renderPage ( $page )
680 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
681 $this- > tpl
-> draw ( $page );
685 // ------------------------------------------------------------------------------------------
686 /* Data storage for links.
687 This object behaves like an associative array.
689 $mylinks = new linkdb();
690 echo $mylinks['20110826_161819']['title'];
691 foreach($mylinks as $link)
692 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
695 title : Title of the link
696 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (eg.'?m-ukcw')
697 description : description of the entry
698 private : Is this link private ? 0=no, other value=yes
699 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (eg.'20110914_192317')
700 tags : tags attached to this entry (separated by spaces)
702 We implement 3 interfaces:
703 - ArrayAccess so that this object behaves like an associative array.
704 - Iterator so that this object can be used in foreach() loops.
705 - Countable interface so that we can do a count() on this object.
707 class linkdb
implements Iterator
, Countable
, ArrayAccess
709 private $links ; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...)
710 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
711 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
712 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
713 private $loggedin ; // Is the used logged in ? (used to filter private links)
716 function __construct ( $isLoggedIn )
717 // Input : $isLoggedIn : is the used logged in ?
719 $this- > loggedin
= $isLoggedIn ;
720 $this- > checkdb (); // Make sure data file exists.
721 $this- > readdb (); // Then read it.
724 // ---- Countable interface implementation
725 public function count () { return count ( $this
-> links
); }
727 // ---- ArrayAccess interface implementation
728 public function offsetSet ( $offset , $value )
730 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
731 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and url.' );
732 if ( empty ( $offset )) die ( 'You must specify a key.' );
733 $this- > links
[ $offset ] = $value ;
734 $this- > urls
[ $value [ 'url' ]]= $offset ;
736 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
737 public function offsetUnset ( $offset )
739 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
740 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
741 unset ( $this- > links
[ $offset ]);
743 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
745 // ---- Iterator interface implementation
746 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
747 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
748 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
749 function next () { ++$this
-> position
; } // go to next item
750 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
753 private function checkdb () // Check if db directory and file exists.
755 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
757 $this- > links
= array ();
758 $link = array ( 'title' => 'Shaarli - sebsauvage.net' , 'url' => 'http://sebsauvage.net/wiki/doku.php?id=php:shaarli' , 'description' => 'Welcome to Shaarli ! This is a bookmark. To edit or delete me, you must first login.' , 'private' => 0 , 'linkdate' => '20110914_190000' , 'tags' => 'opensource software' );
759 $this- > links
[ $link [ 'linkdate' ]] = $link ;
760 $link = array ( 'title' => 'My secret stuff... - Pastebin.com' , 'url' => 'http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=' , 'description' => 'SShhhh!! I \' m a private link only YOU can see. You can delete me too.' , 'private' => 1 , 'linkdate' => '20110914_074522' , 'tags' => 'secretstuff' );
761 $this- > links
[ $link [ 'linkdate' ]] = $link ;
762 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
766 // Read database from disk to memory
767 private function readdb ()
770 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
771 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
773 // If user is not logged in, filter private links.
774 if (! $this- > loggedin
)
777 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
778 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
781 // Keep the list of the mapping URLs-->linkdate up-to-date.
783 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
786 // Save database from memory to disk.
787 public function savedb ()
789 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
790 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
794 // Returns the link for a given URL (if it exists). false it does not exist.
795 public function getLinkFromUrl ( $url )
797 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
801 // Case insentitive search among links (in url, title and description). Returns filtered list of links.
802 // eg. print_r($mydb->filterFulltext('hollandais'));
803 public function filterFulltext ( $searchterms )
805 // FIXME: explode(' ',$searchterms) and perform a AND search.
806 // FIXME: accept double-quotes to search for a string "as is" ?
808 $s = strtolower ( $searchterms );
809 foreach ( $this- > links
as $l )
811 $found = ( strpos ( strtolower ( $l [ 'title' ]), $s )!== false )
812 || ( strpos ( strtolower ( $l [ 'description' ]), $s )!== false )
813 || ( strpos ( strtolower ( $l [ 'url' ]), $s )!== false )
814 || ( strpos ( strtolower ( $l [ 'tags' ]), $s )!== false );
815 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
822 // You can specify one or more tags (tags can be separated by space or comma).
823 // eg. print_r($mydb->filterTags('linux programming'));
824 public function filterTags ( $tags , $casesensitive = false )
826 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : strtolower ( $tags )));
827 $searchtags = explode ( ' ' , $t );
829 foreach ( $this- > links
as $l )
831 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: strtolower ( $l [ 'tags' ])));
832 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
833 $filtered [ $l [ 'linkdate' ]] = $l ;
839 // Filter by day. Day must be in the form 'YYYYMMDD' (eg. '20120125')
840 // Sort order is: older articles first.
841 // eg. print_r($mydb->filterDay('20120125'));
842 public function filterDay ( $day )
845 foreach ( $this- > links
as $l )
847 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
852 // Filter by smallHash.
853 // Only 1 article is returned.
854 public function filterSmallHash ( $smallHash )
857 foreach ( $this- > links
as $l )
859 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
861 $filtered [ $l [ 'linkdate' ]] = $l ;
868 // Returns the list of all tags
869 // Output: associative array key=tags, value=0
870 public function allTags ()
873 foreach ( $this- > links
as $link )
874 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
875 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
876 arsort ( $tags ); // Sort tags by usage (most used tag first)
880 // Returns the list of days containing articles (oldest first)
881 // Output: An array containing days (in format YYYYMMDD).
882 public function days ()
885 foreach ( array_keys ( $this- > links
) as $day )
887 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
889 $linkdays = array_keys ( $linkdays );
895 // ------------------------------------------------------------------------------------------
896 // Ouput the last N links in RSS 2.0 format.
899 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
901 // $usepermalink : If true, use permalink instead of final link.
902 // User just has to add 'permalink' in URL parameters. eg. http://mysite.com/shaarli/?do=rss&permalinks
903 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
906 $query = $_SERVER [ "QUERY_STRING" ];
907 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
908 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
910 // If cached was not found (or not usable), then read the database and build the response:
911 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
913 // Optionnaly filter the results:
914 $linksToDisplay = array ();
915 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
916 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
917 else $linksToDisplay = $LINKSDB ;
918 $nblinksToDisplay = 50 ; // Number of links to display.
919 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
921 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
924 $pageaddr = htmlspecialchars ( indexUrl ());
925 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
926 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
927 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
928 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
930 echo '<!-- PubSubHubbub Discovery -->' ;
931 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
932 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
933 echo '<!-- End Of PubSubHubbub Discovery -->' ;
936 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
937 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
939 $link = $linksToDisplay [ $keys [ $i ]];
940 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
941 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
942 $absurl = htmlspecialchars ( $link [ 'url' ]);
943 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
944 if ( $usepermalinks === true )
945 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $guid . '</link>' ;
947 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
948 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
949 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
951 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
954 // Add permalink in description
955 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
956 // If user wants permalinks first, put the final link in description
957 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
958 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
959 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
962 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
964 $cache- > cache ( ob_get_contents ());
969 // ------------------------------------------------------------------------------------------
970 // Ouput the last N links in ATOM format.
973 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
975 // $usepermalink : If true, use permalink instead of final link.
976 // User just has to add 'permalink' in URL parameters. eg. http://mysite.com/shaarli/?do=atom&permalinks
977 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
980 $query = $_SERVER [ "QUERY_STRING" ];
981 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
982 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
983 // If cached was not found (or not usable), then read the database and build the response:
985 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
988 // Optionnaly filter the results:
989 $linksToDisplay = array ();
990 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
991 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
992 else $linksToDisplay = $LINKSDB ;
993 $nblinksToDisplay = 50 ; // Number of links to display.
994 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
996 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
999 $pageaddr = htmlspecialchars ( indexUrl ());
1003 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
1004 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
1006 $link = $linksToDisplay [ $keys [ $i ]];
1007 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
1008 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
1009 $latestDate = max ( $latestDate , $iso8601date );
1010 $absurl = htmlspecialchars ( $link [ 'url' ]);
1011 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1012 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1013 if ( $usepermalinks === true )
1014 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1016 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1017 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1019 // Add permalink in description
1020 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1021 // If user wants permalinks first, put the final link in description
1022 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1023 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1025 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1026 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1028 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1029 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1031 $entries .= "</entry> \n " ;
1034 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1035 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1036 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1037 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1038 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1040 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1041 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1042 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1044 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1045 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1047 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1050 $cache- > cache ( ob_get_contents ());
1055 // ------------------------------------------------------------------------------------------
1056 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1057 // Gives the last 7 days (which have links).
1058 // This RSS feed cannot be filtered.
1059 function showDailyRSS ()
1062 $query = $_SERVER [ "QUERY_STRING" ];
1063 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1064 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1065 // If cached was not found (or not usable), then read the database and build the response:
1066 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1068 /* Some Shaarlies may have very few links, so we need to look
1069 back in time (rsort()) until we have enough days ($nb_of_days).
1071 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1073 $nb_of_days = 7 ; // We take 7 days.
1076 foreach ( $linkdates as $linkdate )
1078 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1079 if ( strcmp ( $day , $today )< 0 )
1081 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1082 $days [ $day ][]= $linkdate ;
1084 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days ?
1087 // Build the RSS feed.
1088 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1089 $pageaddr = htmlspecialchars ( indexUrl ());
1090 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1091 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1092 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1094 foreach ( $days as $day => $linkdates ) // For each day.
1096 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1097 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1098 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1099 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1100 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1102 // Build the HTML body of this RSS entry.
1106 // We pre-format some fields for proper output.
1107 foreach ( $linkdates as $linkdate )
1109 $l = $LINKSDB [ $linkdate ];
1110 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1111 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1112 $l [ 'localdate' ]= linkdate2locale ( $l [ 'linkdate' ]);
1113 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1114 $links [ $linkdate ]= $l ;
1116 // Then build the HTML for this day:
1118 $tpl- > assign ( 'links' , $links );
1119 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1121 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1124 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1126 $cache- > cache ( ob_get_contents ());
1132 function showDaily ()
1134 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1137 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1138 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1140 $days = $LINKSDB- > days ();
1141 $i = array_search ( $day , $days );
1142 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1147 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1148 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1151 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1152 // We pre-format some fields for proper output.
1153 foreach ( $linksToDisplay as $key => $link )
1155 $taglist = explode ( ' ' , $link [ 'tags' ]);
1156 uasort ( $taglist , 'strcasecmp' );
1157 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1158 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1159 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1162 /* We need to spread the articles on 3 columns.
1163 I did not want to use a javascript lib like http://masonry.desandro.com/
1164 so I manually spread entries with a simple method: I roughly evaluate the
1165 height of a div according to title and description length.
1167 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1168 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1169 foreach ( $linksToDisplay as $key => $link )
1171 // Roughly estimate length of entry (by counting characters)
1172 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1173 // Description: 836 characters gives roughly 342 pixel height.
1174 // This is not perfect, but it's usually ok.
1175 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1176 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1177 // Then put in column which is the less filled:
1178 $smallest = min ( $fill ); // find smallest value in array.
1179 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1180 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1181 $fill [ $index ] +
= $length ;
1183 $PAGE = new pageBuilder
;
1184 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1185 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1186 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1187 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1188 $PAGE- > assign ( 'col2' , $columns [ 1 ]);
1189 $PAGE- > assign ( 'col3' , $columns [ 2 ]);
1190 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1191 $PAGE- > assign ( 'previousday' , $previousday );
1192 $PAGE- > assign ( 'nextday' , $nextday );
1193 $PAGE- > renderPage ( 'daily' );
1198 // ------------------------------------------------------------------------------------------
1199 // Render HTML page (according to URL parameters and user rights)
1200 function renderPage ()
1202 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1204 // -------- Display login form.
1205 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1207 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1208 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1209 $PAGE = new pageBuilder
;
1210 $PAGE- > assign ( 'token' , $token );
1211 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1212 $PAGE- > renderPage ( 'loginform' );
1215 // -------- User wants to logout.
1216 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1220 header ( 'Location: ?' );
1224 // -------- Picture wall
1225 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1227 // Optionnaly filter the results:
1229 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1230 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1231 else $links = $LINKSDB ;
1233 $linksToDisplay = array ();
1235 // Get only links which have a thumbnail.
1236 foreach ( $links as $link )
1238 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1239 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1240 if ( $thumb != '' ) // Only output links which have a thumbnail.
1242 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1243 $link [ 'permalink' ]= $permalink ;
1244 $linksToDisplay []= $link ; // Add to array.
1247 $PAGE = new pageBuilder
;
1248 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1249 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1250 $PAGE- > renderPage ( 'picwall' );
1254 // -------- Tag cloud
1255 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1257 $tags = $LINKSDB- > allTags ();
1258 // We sort tags alphabetically, then choose a font size according to count.
1259 // First, find max value.
1260 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1263 foreach ( $tags as $key => $value )
1265 $tagList [ $key ] = array ( 'count' => $value , 'size' => max ( 40 * $value / $maxcount , 8 ));
1267 $PAGE = new pageBuilder
;
1268 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1269 $PAGE- > assign ( 'tags' , $tagList );
1270 $PAGE- > renderPage ( 'tagcloud' );
1274 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1275 if ( isset ( $_GET [ 'addtag' ]))
1277 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1278 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1279 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1280 $params [ 'searchtags' ] = ( empty ( $params [ 'searchtags' ]) ? trim ( $_GET [ 'addtag' ]) : trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]));
1281 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1282 header ( 'Location: ?' . http_build_query ( $params ));
1286 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1287 if ( isset ( $_GET [ 'removetag' ]))
1289 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1290 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1291 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1292 if ( isset ( $params [ 'searchtags' ]))
1294 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1295 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1296 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1297 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1299 header ( 'Location: ?' . http_build_query ( $params ));
1303 // -------- User wants to change the number of links per page (linksperpage=...)
1304 if ( isset ( $_GET [ 'linksperpage' ]))
1306 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1307 // Make sure the referer is from Shaarli itself.
1309 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1310 $referer = $_SERVER [ 'HTTP_REFERER' ];
1311 header ( 'Location: ' . $referer );
1315 // -------- User wants to see only private links (toggle)
1316 if ( isset ( $_GET [ 'privateonly' ]))
1318 if ( empty ( $_SESSION [ 'privateonly' ]))
1320 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1324 unset ( $_SESSION [ 'privateonly' ]); // See all links
1326 // Make sure the referer is from Shaarli itself.
1328 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1329 $referer = $_SERVER [ 'HTTP_REFERER' ];
1330 header ( 'Location: ' . $referer );
1334 // -------- Handle other actions allowed for non-logged in users:
1337 // User tries to post new link but is not loggedin:
1338 // Show login screen, then redirect to ?post=...
1339 if ( isset ( $_GET [ 'post' ]))
1341 header ( 'Location: ?do=login&post=' . urlencode ( $_GET [ 'post' ]).(! empty ( $_GET [ 'title' ])? '&title=' . urlencode ( $_GET [ 'title' ]): '' ).(! empty ( $_GET [ 'source' ])? '&source=' . urlencode ( $_GET [ 'source' ]): '' )); // Redirect to login page, then back to post link.
1344 $PAGE = new pageBuilder
;
1345 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1346 $PAGE- > renderPage ( 'linklist' );
1347 exit ; // Never remove this one ! All operations below are reserved for logged in user.
1350 // -------- All other functions are reserved for the registered user:
1352 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1353 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1355 $PAGE = new pageBuilder
;
1356 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1357 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1358 $PAGE- > renderPage ( 'tools' );
1362 // -------- User wants to change his/her password.
1363 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1365 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1366 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1368 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1370 // Make sure old password is correct.
1371 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1372 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1373 // Save new password
1374 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1375 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1377 echo '<script language="JavaScript">alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1380 else // show the change password form.
1382 $PAGE = new pageBuilder
;
1383 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1384 $PAGE- > assign ( 'token' , getToken ());
1385 $PAGE- > renderPage ( 'changepassword' );
1390 // -------- User wants to change configuration
1391 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1393 if (! empty ( $_POST [ 'title' ]) )
1395 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1397 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1398 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1399 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1400 $GLOBALS [ 'timezone' ] = $tz ;
1401 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1402 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1403 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1404 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1405 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1406 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1408 echo '<script language="JavaScript">alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1411 else // Show the configuration form.
1413 $PAGE = new pageBuilder
;
1414 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1415 $PAGE- > assign ( 'token' , getToken ());
1416 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1417 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1418 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1419 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: put entire tz form generation in template ?
1420 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1421 $PAGE- > renderPage ( 'configure' );
1426 // -------- User wants to rename a tag or delete it
1427 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1429 if ( empty ( $_POST [ 'fromtag' ]))
1431 $PAGE = new pageBuilder
;
1432 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1433 $PAGE- > assign ( 'token' , getToken ());
1434 $PAGE- > renderPage ( 'changetag' );
1437 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1440 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1442 $needle = trim ( $_POST [ 'fromtag' ]);
1443 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1444 foreach ( $linksToAlter as $key => $value )
1446 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1447 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1448 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1449 $LINKSDB [ $key ]= $value ;
1451 $LINKSDB- > savedb (); // save to disk
1452 echo '<script language="JavaScript">alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1457 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1459 $needle = trim ( $_POST [ 'fromtag' ]);
1460 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1461 foreach ( $linksToAlter as $key => $value )
1463 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1464 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Remplace tags value.
1465 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1466 $LINKSDB [ $key ]= $value ;
1468 $LINKSDB- > savedb (); // save to disk
1469 echo '<script language="JavaScript">alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1474 // -------- User wants to add a link without using the bookmarklet: show form.
1475 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1477 $PAGE = new pageBuilder
;
1478 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1479 $PAGE- > renderPage ( 'addlink' );
1483 // -------- User clicked the "Save" button when editing a link: Save link to database.
1484 if ( isset ( $_POST [ 'save_edit' ]))
1486 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1487 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1488 $linkdate = $_POST [ 'lf_linkdate' ];
1489 $url = trim ( $_POST [ 'lf_url' ]);
1490 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ))
1491 $url = 'http://' . $url ;
1492 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1493 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1494 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1495 $LINKSDB [ $linkdate ] = $link ;
1496 $LINKSDB- > savedb (); // save to disk
1499 // If we are called from the bookmarklet, we must close the popup:
1500 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1501 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1502 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1503 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1507 // -------- User clicked the "Cancel" button when editing a link.
1508 if ( isset ( $_POST [ 'cancel_edit' ]))
1510 // If we are called from the bookmarklet, we must close the popup;
1511 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1512 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1513 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1514 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1518 // -------- User clicked the "Delete" button when editing a link : Delete link from database.
1519 if ( isset ( $_POST [ 'delete_link' ]))
1521 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1522 // We do not need to ask for confirmation:
1523 // - confirmation is handled by javascript
1524 // - we are protected from XSRF by the token.
1525 $linkdate = $_POST [ 'lf_linkdate' ];
1526 unset ( $LINKSDB [ $linkdate ]);
1527 $LINKSDB- > savedb (); // save to disk
1529 // If we are called from the bookmarklet, we must close the popup:
1530 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1531 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1532 if ( $returnurl == '?' ) { $returnurl
= ( isset ( $_SERVER
[ 'HTTP_REFERER' ]) ? $_SERVER
[ 'HTTP_REFERER' ] : '?' ); }
1533 header ( 'Location: ' . $returnurl ); // After deleting the link, redirect to the page the user was on.
1537 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1538 if ( isset ( $_GET [ 'edit_link' ]))
1540 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1541 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1542 $PAGE = new pageBuilder
;
1543 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1544 $PAGE- > assign ( 'link' , $link );
1545 $PAGE- > assign ( 'link_is_new' , false );
1546 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1547 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1548 $PAGE- > renderPage ( 'editlink' );
1552 // -------- User want to post a new link: Display link edit form.
1553 if ( isset ( $_GET [ 'post' ]))
1557 // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
1558 $i = strpos ( $url , '&utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1559 $i = strpos ( $url , '?utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1560 $i = strpos ( $url , '#xtor=RSS-' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1562 $link_is_new = false ;
1563 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1566 $link_is_new = true ; // This is a new link
1567 $linkdate = strval ( date ( 'Ymd_His' ));
1568 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1569 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1570 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1571 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1572 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1573 // If this is an HTTP link, we try go get the page to extact the title (otherwise we will to straight to the edit form.)
1574 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1576 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1577 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1578 if ( strpos ( $status , '200 OK' )!== false )
1580 // Look for charset in html header.
1581 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1583 // If found, extract encoding.
1584 if (! empty ( $meta [ 0 ]))
1586 // Get encoding specified in header.
1587 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1588 // If charset not found, use utf-8.
1589 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1591 else { $html_charset
= 'utf-8' ; }
1594 $title = html_extract_title ( $data );
1597 // Re-encode title in utf-8 if necessary.
1598 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1602 if ( $url == '' ) $url = '?' . smallHash ( $linkdate ); // In case of empty URL, this is just a text (with a link that point to itself)
1603 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1606 $PAGE = new pageBuilder
;
1607 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1608 $PAGE- > assign ( 'link' , $link );
1609 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1610 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1611 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1612 $PAGE- > renderPage ( 'editlink' );
1616 // -------- Export as Netscape Bookmarks HTML file.
1617 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1619 if ( empty ( $_GET [ 'what' ]))
1621 $PAGE = new pageBuilder
;
1622 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1623 $PAGE- > renderPage ( 'export' );
1626 $exportWhat = $_GET [ 'what' ];
1627 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export ???' );
1629 header ( 'Content-Type: text/html; charset=utf-8' );
1630 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1631 $currentdate = date ( 'Y/m/d H:i:s' );
1633 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1634 <!-- This is an automatically generated file.
1635 It will be read and overwritten.
1637 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1638 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1639 <TITLE>Bookmarks</TITLE>
1642 foreach ( $LINKSDB as $link )
1644 if ( $exportWhat == 'all' ||
1645 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1646 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1648 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1649 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1650 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1651 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1657 // -------- User is uploading a file for import
1658 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1660 // If file is too big, some form field may be missing.
1661 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1663 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1664 echo '<script language="JavaScript">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= \' ' . htmlspecialchars ( $returnurl ). ' \' ;</script>' ;
1667 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1672 // -------- Show upload/import dialog:
1673 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1675 $PAGE = new pageBuilder
;
1676 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1677 $PAGE- > assign ( 'token' , getToken ());
1678 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1679 $PAGE- > renderPage ( 'import' );
1683 // -------- Otherwise, simply display search form and links:
1684 $PAGE = new pageBuilder
;
1685 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1686 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1687 $PAGE- > renderPage ( 'linklist' );
1691 // -----------------------------------------------------------------------------------------------
1692 // Process the import file form.
1693 function importFile ()
1695 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1696 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1697 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1698 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1699 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1700 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private ?
1701 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones ?
1706 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1708 // Then import the bookmarks.
1709 if ( $type == 'netscape' )
1711 // This is a standard Netscape-style bookmark file.
1712 // This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
1713 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1715 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1716 $d = explode ( '<DD>' , $html );
1717 if ( startswith ( $d [ 0 ], '<A ' ))
1719 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1720 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1721 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1722 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1724 foreach ( $matches as $m )
1726 $attr = $m [ 1 ]; $value = $m [ 2 ];
1727 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1728 elseif ( $attr == 'ADD_DATE' )
1730 $raw_add_date = intval ( $value );
1731 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1733 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1734 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1736 if ( $link [ 'url' ]!= '' )
1738 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1739 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1741 { // Link not in database, let's import it...
1742 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1744 // Make sure date/time is not already used by another link.
1745 // (Some bookmark files have several different links with the same ADD_DATE)
1746 // We increment date by 1 second until we find a date which is not used in db.
1747 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1748 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1749 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1750 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1753 else // link already present in database.
1756 { // If overwrite is required, we import link data, except date/time.
1757 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1758 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1768 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1772 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1776 // -----------------------------------------------------------------------------------------------
1777 // Template for the list of links (<div id="linklist">)
1778 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1779 function buildLinkList ( $PAGE , $LINKSDB )
1781 // ---- Filter link database according to parameters
1782 $linksToDisplay = array ();
1785 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1787 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1788 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1789 $search_type = 'fulltext' ;
1791 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1793 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1794 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1795 $search_type = 'tags' ;
1797 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1799 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1800 if ( count ( $linksToDisplay )== 0 )
1802 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1803 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1804 echo '<br>You would mind <a href="?">clicking here</a> ?' ;
1807 $search_type = 'permalink' ;
1810 $linksToDisplay = $LINKSDB ; // otherwise, display without filtering.
1812 // Option: Show only private links
1813 if (! empty ( $_SESSION [ 'privateonly' ]))
1816 foreach ( $linksToDisplay as $linkdate => $link )
1818 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1820 $linksToDisplay = $tmp ;
1823 // ---- Handle paging.
1824 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ???
1825 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1826 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1828 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks php.
1830 // If there is only a single link, we change on-the-fly the title of the page.
1831 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1833 // Select articles according to paging.
1834 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1835 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1836 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1837 $page = ( $page < 1 ? 1 : $page );
1838 $page = ( $page > $pagecount ? $pagecount : $page );
1839 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1840 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1841 $linkDisp = array (); // Links to display
1842 while ( $i < $end && $i < count ( $keys ))
1844 $link = $linksToDisplay [ $keys [ $i ]];
1845 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1846 $title = $link [ 'title' ];
1847 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1848 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1849 $link [ 'localdate' ]= linkdate2locale ( $link [ 'linkdate' ]);
1850 $taglist = explode ( ' ' , $link [ 'tags' ]);
1851 uasort ( $taglist , 'strcasecmp' );
1852 $link [ 'taglist' ]= $taglist ;
1853 $linkDisp [ $keys [ $i ]] = $link ;
1857 // Compute paging navigation
1858 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1859 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1861 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1862 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1864 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1866 // Fill all template fields.
1867 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1868 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1869 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1870 $PAGE- > assign ( 'page_current' , $page );
1871 $PAGE- > assign ( 'page_max' , $pagecount );
1872 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1873 $PAGE- > assign ( 'search_type' , $search_type );
1874 $PAGE- > assign ( 'search_crits' , $search_crits );
1875 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // optional redirector URL
1876 $PAGE- > assign ( 'token' , $token );
1877 $PAGE- > assign ( 'links' , $linkDisp );
1881 // Compute the thumbnail for a link.
1883 // with a link to the original URL.
1884 // Understands various services (youtube.com...)
1885 // Input: $url = url for which the thumbnail must be found.
1886 // $href = if provided, this URL will be followed instead of $url
1887 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1888 // Some of them may be missing.
1889 // Return an empty array if no thumbnail available.
1890 function computeThumbnail ( $url , $href = false )
1892 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1893 if ( $href == false ) $href = $url ;
1895 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1896 // (eg. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1897 // ^^^^^^^^^^^ ^^^^^^^^^^^
1898 $domain = parse_url ( $url , PHP_URL_HOST
);
1899 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1901 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1902 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'http://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1903 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1905 if ( $domain == 'youtu.be' ) // Youtube short links
1907 $path = parse_url ( $url , PHP_URL_PATH
);
1908 return array ( 'src' => 'http://img.youtube.com/vi' . $path . '/default.jpg' ,
1909 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1911 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1913 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1914 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1915 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1918 if ( $domain == 'imgur.com' )
1920 $path = parse_url ( $url , PHP_URL_PATH
);
1921 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1922 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'http://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1923 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1924 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'http://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1925 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1927 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'http://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1928 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1930 if ( $domain == 'i.imgur.com' )
1932 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1933 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'http://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1934 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1936 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1938 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1940 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1941 return array ( 'src' => $thumburl ,
1942 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1945 if ( endsWith ( $domain , '.imageshack.us' ))
1947 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1948 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1950 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1951 return array ( 'src' => $thumburl ,
1952 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1956 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1957 // So we deport the thumbnail generation in order not to slow down page generation
1958 // (and we also cache the thumbnail)
1960 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1962 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1963 || $domain == 'vimeo.com'
1964 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1965 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1968 if ( $domain == 'vimeo.com' )
1969 { // Make sure this vimeo url points to a video (/xxx... where xxx is numeric)
1970 $path = parse_url ( $url , PHP_URL_PATH
);
1971 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1973 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1974 { // Make sure this url points to a single comic (/xxx... where xxx is numeric)
1975 $path = parse_url ( $url , PHP_URL_PATH
);
1976 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1978 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1979 { // Make sure this TED url points to a video (/talks/...)
1980 $path = parse_url ( $url , PHP_URL_PATH
);
1981 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1983 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1984 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1985 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1988 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1989 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1990 // But using the extension will do.
1991 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1992 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1994 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1995 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1996 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1998 return array (); // No thumbnail.
2003 // Returns the HTML code to display a thumbnail for a link
2004 // with a link to the original URL.
2005 // Understands various services (youtube.com...)
2006 // Input: $url = url for which the thumbnail must be found.
2007 // $href = if provided, this URL will be followed instead of $url
2008 // Returns '' if no thumbnail available.
2009 function thumbnail ( $url , $href = false )
2011 $t = computeThumbnail ( $url , $href );
2012 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2014 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2015 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2016 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2017 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2018 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2024 // Returns the HTML code to display a thumbnail for a link
2025 // for the picture wall (using lazy image loading)
2026 // Understands various services (youtube.com...)
2027 // Input: $url = url for which the thumbnail must be found.
2028 // $href = if provided, this URL will be followed instead of $url
2029 // Returns '' if no thumbnail available.
2030 function lazyThumbnail ( $url , $href = false )
2032 $t = computeThumbnail ( $url , $href );
2033 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2035 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2037 // Lazy image (only loaded by javascript when in the viewport).
2038 if (! empty ( $GLOBALS [ 'disablejquery' ])) // (except if jQuery is disabled)
2039 $html .= '<img class="lazyimage" src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2041 $html .= '<img class="lazyimage" src="#" data-original="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2043 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2044 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2045 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2046 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2049 // No-javascript fallback.
2050 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2051 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2052 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2053 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2054 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2055 $html .= '></noscript></a>' ;
2061 // -----------------------------------------------------------------------------------------------
2063 // This function should NEVER be called if the file data/config.php exists.
2066 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2067 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2070 // This part makes sure sessions works correctly.
2071 // (Because on some hosts, session.save_path may not be set correctly,
2072 // or we may not have write access to it.)
2073 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2074 { // Step 2: Check if data in session is correct.
2075 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2076 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2077 echo 'It currently points to ' . session_save_path (). '<br><br><a href="?">Click to try again.</a></pre>' ;
2080 if (! isset ( $_SESSION [ 'session_tested' ]))
2081 { // Step 1 : Try to store data in session and reload page.
2082 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2083 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2085 if ( isset ( $_GET [ 'test_session' ]))
2086 { // Step 3: Sessions are ok. Remove test parameter from URL.
2087 header ( 'Location: ' . indexUrl ());
2091 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2094 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2095 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2096 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2097 $GLOBALS [ 'timezone' ] = $tz ;
2098 // Everything is ok, let's create config file.
2099 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2100 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2101 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2102 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2104 echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location= \' ?do=login \' ;</script>' ;
2108 // Display config form:
2109 list ( $timezone_form , $timezone_js ) = templateTZform ();
2110 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td valign="top"><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2112 $PAGE = new pageBuilder
;
2113 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2114 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2115 $PAGE- > renderPage ( 'install' );
2119 // Generates the timezone selection form and javascript.
2120 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2121 // Output: array(html,js)
2122 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2123 // Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr)
2124 function templateTZform ( $ptz = false )
2126 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
2128 // Try to split the provided timezone.
2129 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2130 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2132 // Display config form:
2133 $timezone_form = '' ;
2135 // The list is in the forme "Europe/Paris", "America/Argentina/Buenos_Aires"...
2136 // We split the list in continents/cities.
2137 $continents = array ();
2139 foreach ( timezone_identifiers_list () as $tz )
2141 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2142 $spos = strpos ( $tz , '/' );
2145 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2146 $continents [ $continent ]= 1 ;
2147 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2148 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? 'selected' : '' ). '>' . $city . '</option>' ;
2151 $continents_html = '' ;
2152 $continents = array_keys ( $continents );
2153 foreach ( $continents as $continent )
2154 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? 'selected' : '' ). '>' . $continent . '</option>' ;
2155 $cities_html = $cities [ $pcontinent ];
2156 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2157 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2158 $timezone_js = "<script language= \" JavaScript \" >" ;
2159 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2160 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2161 $timezone_js .= "</script>" ;
2162 return array ( $timezone_form , $timezone_js );
2164 return array ( '' , '' );
2167 // Tells if a timezone is valid or not.
2168 // If not valid, returns false.
2169 // If system does not support timezone list, returns false.
2170 function isTZvalid ( $continent , $city )
2172 $tz = $continent . '/' . $city ;
2173 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
2175 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone ?
2180 if (! function_exists ( 'json_encode' )) {
2181 function json_encode ( $data ) {
2182 switch ( $type = gettype ( $data )) {
2186 return ( $data ? 'true' : 'false' );
2192 return '"' . addslashes ( $data ) . '"' ;
2194 $data = get_object_vars ( $data );
2196 $output_index_count = 0 ;
2197 $output_indexed = array ();
2198 $output_associative = array ();
2199 foreach ( $data as $key => $value ) {
2200 $output_indexed [] = json_encode ( $value );
2201 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2202 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2203 $output_index_count = NULL ;
2206 if ( $output_index_count !== NULL ) {
2207 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2209 return ' {' . implode(',', $output_associative) . '} ' ;
2212 return '' ; // Not supported
2217 // Webservices (for use with jQuery/jQueryUI)
2218 // eg. index.php?ws=tags&term=minecr
2219 function processWS ()
2221 if ( empty ( $_GET [ 'ws' ]) || empty ( $_GET [ 'term' ])) return ;
2222 $term = $_GET [ 'term' ];
2223 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
2224 header ( 'Content-Type: application/json; charset=utf-8' );
2226 // Search in tags (case insentitive, cumulative search)
2227 if ( $_GET [ 'ws' ]== 'tags' )
2229 $tags = explode ( ' ' , str_replace ( ',' , ' ' , $term )); $last = array_pop ( $tags ); // Get the last term ("a b c d" ==> "a b c", "d")
2230 $addtags = '' ; if ( $tags ) $addtags = implode ( ' ' , $tags ). ' ' ; // We will pre-pend previous tags
2232 /* To speed up things, we store list of tags in session */
2233 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2234 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2236 if ( startsWith ( $key , $last , $case = false ) && ! in_array ( $key , $tags )) $suggested [ $addtags . $key . ' ' ]= 0 ;
2238 echo json_encode ( array_keys ( $suggested ));
2242 // Search a single tag (case sentitive, single tag search)
2243 if ( $_GET [ 'ws' ]== 'singletag' )
2245 /* To speed up things, we store list of tags in session */
2246 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2247 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2249 if ( startsWith ( $key , $term , $case = true )) $suggested [ $key ]= 0 ;
2251 echo json_encode ( array_keys ( $suggested ));
2256 // Re-write configuration file according to globals.
2257 // Requires some $GLOBALS to be set (login,hash,salt,title).
2258 // If the config file cannot be saved, an error message is dislayed and the user is redirected to "Tools" menu.
2259 // (otherwise, the function simply returns.)
2260 function writeConfig ()
2262 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2263 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2264 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2265 $config .= ' $GLOBALS [ \' titleLink \' ]=' . var_export ( $GLOBALS [ 'titleLink' ], true ). '; ' ;
2266 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2267 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2268 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2269 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2271 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2273 echo '<script language="JavaScript">alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location= \' ? \' ;</script>' ;
2278 /* Because some f*cking services like Flickr require an extra HTTP request to get the thumbnail URL,
2279 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2280 The following function takes the URL a link (eg. a flickr page) and return the proper thumbnail.
2281 This function is called by passing the url:
2282 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2283 [URL] is the URL of the link (eg. a flickr page)
2284 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2285 The function below will fetch the image from the webservice and store it in the cache.
2287 function genThumbnail ()
2289 // Make sure the parameters in the URL were generated by us.
2290 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2291 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy !' );
2293 // Let's see if we don't already have the image for this URL in the cache.
2294 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2295 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2296 { // We have the thumbnail, just serve it:
2297 header ( 'Content-Type: image/jpeg' );
2298 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2301 // We may also serve a blank image (if service did not respond)
2302 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2303 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2305 header ( 'Content-Type: image/gif' );
2306 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2310 // Otherwise, generate the thumbnail.
2311 $url = $_GET [ 'url' ];
2312 $domain = parse_url ( $url , PHP_URL_HOST
);
2314 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2316 // Crude replacement to handle new Flickr domain policy (They prefer www. now)
2317 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2319 // Is this a link to an image, or to a flickr page ?
2321 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2322 { // This is a direct link to an image. eg. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2323 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2324 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2326 else // this is a flickr page (html)
2328 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2329 if ( strpos ( $httpstatus , '200 OK' )!== false )
2331 // Flickr now nicely provides the URL of the thumbnail in each flickr page.
2332 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2333 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2335 // In albums (and some other pages), the link rel="image_src" is not provided,
2336 // but flickr provides:
2337 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2340 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2341 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2347 { // Let's download the image.
2348 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2349 if ( strpos ( $httpstatus , '200 OK' )!== false )
2351 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2352 header ( 'Content-Type: image/jpeg' );
2359 elseif ( $domain == 'vimeo.com' )
2361 // This is more complex: we have to perform a HTTP request, then parse the result.
2362 // Maybe we should deport this to javascript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2363 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2364 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2365 if ( strpos ( $httpstatus , '200 OK' )!== false )
2367 $t = unserialize ( $data );
2368 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2369 // Then we download the image and serve it to our client.
2370 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2371 if ( strpos ( $httpstatus , '200 OK' )!== false )
2373 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2374 header ( 'Content-Type: image/jpeg' );
2381 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2383 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2384 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2385 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2386 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2387 if ( strpos ( $httpstatus , '200 OK' )!== false )
2389 // Extract the link to the thumbnail
2390 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2391 if (! empty ( $matches [ 1 ]))
2392 { // Let's download the image.
2393 $imageurl = $matches [ 1 ];
2394 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2395 if ( strpos ( $httpstatus , '200 OK' )!== false )
2397 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2398 file_put_contents ( $filepath , $data ); // Save image to cache.
2399 if ( resizeImage ( $filepath ))
2401 header ( 'Content-Type: image/jpeg' );
2402 echo file_get_contents ( $filepath );
2410 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2412 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2413 // http://xkcd.com/327/
2414 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2415 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2416 if ( strpos ( $httpstatus , '200 OK' )!== false )
2418 // Extract the link to the thumbnail
2419 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2420 if (! empty ( $matches [ 1 ]))
2421 { // Let's download the image.
2422 $imageurl = $matches [ 1 ];
2423 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2424 if ( strpos ( $httpstatus , '200 OK' )!== false )
2426 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2427 file_put_contents ( $filepath , $data ); // Save image to cache.
2428 if ( resizeImage ( $filepath ))
2430 header ( 'Content-Type: image/jpeg' );
2431 echo file_get_contents ( $filepath );
2441 // For all other domains, we try to download the image and make a thumbnail.
2442 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2443 if ( strpos ( $httpstatus , '200 OK' )!== false )
2445 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2446 file_put_contents ( $filepath , $data ); // Save image to cache.
2447 if ( resizeImage ( $filepath ))
2449 header ( 'Content-Type: image/jpeg' );
2450 echo file_get_contents ( $filepath );
2457 // Otherwise, return an empty image (8x8 transparent gif)
2458 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2459 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2460 header ( 'Content-Type: image/gif' );
2464 // Make a thumbnail of the image (to width: 120 pixels)
2465 // Returns true if success, false otherwise.
2466 function resizeImage ( $filepath )
2468 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2470 // Trick: some stupid people rename GIF as JPEG... or else.
2471 // So we really try to open each image type whatever the extension is.
2472 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2474 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2475 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2476 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2477 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2480 $ystart = 0 ; $yheight = $h ;
2481 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2482 $nw = 120 ; // Desired width
2483 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2485 $im2 = imagecreatetruecolor ( $nw , $nh );
2486 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2487 imageinterlace ( $im2 , true ); // For progressive JPEG.
2488 $tempname = $filepath . '_TEMP.jpg' ;
2489 imagejpeg ( $im2 , $tempname , 90 );
2493 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2497 // Invalidate caches when the database is changed or the user logs out.
2498 // (eg. tags cache).
2499 function invalidateCaches ()
2501 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2502 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2505 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2506 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2507 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2508 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2509 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2510 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'ws=' )) { processWS (); exit ; } // Webservices (for jQuery/jQueryUI)
2511 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];