]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
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' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
30 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
31 // Note: You must have publisher.php in the same directory as Shaarli index.php
32 // -----------------------------------------------------------------------------------------------
33 // You should not touch below (or at your own risks !)
34 // Optionnal config file.
35 if ( is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' )) require ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' );
37 define ( 'shaarli_version' , '0.0.42 beta' );
38 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in php code.
39 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in php code.
40 // http://server.com/x/shaarli --> /shaarli/
41 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
43 // Force cookie path (but do not change lifetime)
44 $cookie = session_get_cookie_params ();
45 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
46 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set default cookie expiration and path.
48 // Set session parameters on server side.
49 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
50 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
51 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL)
52 ini_set ( 'session.use_trans_sid' , false ); // Prevent php to use sessionID in URL if cookies are disabled.
53 session_name ( 'shaarli' );
54 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
57 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
58 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
59 ini_set ( 'post_max_size' , '16M' );
60 ini_set ( 'upload_max_filesize' , '16M' );
62 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
63 //error_reporting(-1); // See all errors (for debugging only)
65 include "inc/rain.tpl.class.php" ; //include Rain TPL
66 raintpl
:: $tpl_dir = "tpl/" ; // template directory
67 if (! is_dir ( 'tmp' )) { mkdir ( 'tmp' , 0705 ); chmod ( 'tmp' , 0705 ); }
68 raintpl
:: $cache_dir = "tmp/" ; // cache directory
70 ob_start (); // Output buffering for the page cache.
73 // In case stupid admin has left magic_quotes enabled in php.ini:
74 if ( get_magic_quotes_gpc ())
76 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
77 $_POST = array_map ( 'stripslashes_deep' , $_POST );
78 $_GET = array_map ( 'stripslashes_deep' , $_GET );
79 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
82 // Prevent caching on client side or proxy: (yes, it's ugly)
83 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
84 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
85 header ( "Cache-Control: post-check=0, pre-check=0" , false );
86 header ( "Pragma: no-cache" );
88 // Directories creations (Note that your web host may require differents rights than 705.)
89 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>' );
90 if (! is_dir ( $GLOBALS [ 'config' ][ 'DATADIR' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'DATADIR' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'DATADIR' ], 0705 ); }
91 if (! is_dir ( 'tmp' )) { mkdir ( 'tmp' , 0705 ); chmod ( 'tmp' , 0705 ); } // For RainTPL temporary files.
92 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.
93 // Second check to see if Shaarli can write in its directory, because on some hosts is_writable() is not reliable.
94 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>' );
95 if ( $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ])
97 if (! is_dir ( $GLOBALS [ 'config' ][ 'CACHEDIR' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'CACHEDIR' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'CACHEDIR' ], 0705 ); }
98 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.
101 // Handling of old config file which do not have the new parameters.
102 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( indexUrl ());
103 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
104 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
105 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
106 if ( empty ( $GLOBALS [ 'disablejquery' ])) $GLOBALS [ 'disablejquery' ]= false ;
107 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
108 // I really need to rewrite Shaarli with a proper configuation manager.
110 // Run config screen if first run:
111 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
113 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
115 // a token depending of deployment salt, user password, and the current ip
116 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
118 autoLocale (); // Sniff browser language and set date format accordingly.
119 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
122 function checkphpversion ()
124 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
126 header ( 'Content-Type: text/plain; charset=utf-8' );
127 echo 'Your server supports php ' . PHP_VERSION
. '. Shaarli requires at least php 5.1.0, and thus cannot run. Sorry.' ;
132 // Checks if an update is available for Shaarli.
133 // (at most once a day, and only for registered user.)
134 // Output: '' = no new version.
135 // other= the available version.
136 function checkUpdate ()
138 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
140 // Get latest version number at most once a day.
141 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
143 $version = shaarli_version
;
144 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://sebsauvage.net/files/shaarli_version.txt' , 2 );
145 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = $data ;
146 // If failed, nevermind. We don't want to bother the user with that.
147 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
150 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
151 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
156 // -----------------------------------------------------------------------------------------------
157 // Simple cache system (mainly for the RSS/ATOM feeds).
161 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
162 private $shouldBeCached ; // boolean: Should this url be cached ?
163 private $filename ; // Name of the cache file for this url
166 $url = url (typically the value returned by pageUrl())
167 $shouldBeCached = boolean. If false, the cache will be disabled.
169 public function __construct ( $url , $shouldBeCached )
172 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
173 $this- > shouldBeCached
= $shouldBeCached ;
176 // If the page should be cached and a cached version exists,
177 // returns the cached version (otherwise, return null).
178 public function cachedVersion ()
180 if (! $this- > shouldBeCached
) return null ;
181 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
185 // Put a page in the cache.
186 public function cache ( $page )
188 if (! $this- > shouldBeCached
) return ;
189 if (! is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ])) { mkdir ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ], 0705 ); chmod ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ], 0705 ); }
190 file_put_contents ( $this- > filename
, $page );
193 // Purge the whole cache.
194 // (call with pageCache::purgeCache())
195 public static function purgeCache ()
197 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
199 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
200 if ( $handler !== false )
202 while (( $filename = readdir ( $handler ))!== false )
204 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
214 // -----------------------------------------------------------------------------------------------
216 function logm ( $message )
218 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
219 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
222 // Same as nl2br(), but escapes < and >
223 function nl2br_escaped ( $html )
225 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
228 /* Returns the small hash of a string, using RFC 4648 base64url format
229 eg. smallHash('20111006_131924') --> yZH23w
231 - are unique (well, as unique as crc32, at last)
232 - are always 6 characters long.
233 - only use the following characters: a-z A-Z 0-9 - _ @
234 - are NOT cryptographically secure (they CAN be forged)
235 In Shaarli, they are used as a tinyurl-like link to individual entries.
237 function smallHash ( $text )
239 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
240 return strtr ( $t , '+/' , '-_' );
243 // In a string, converts urls to clickable links.
244 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
245 function text2clickable ( $url )
247 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
248 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
251 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
252 // even in the absence of <pre> (This is used in description to keep text formatting)
253 function keepMultipleSpaces ( $text )
255 return str_replace ( ' ' , ' ' , $text );
258 // ------------------------------------------------------------------------------------------
259 // Sniff browser language to display dates in the right format automatically.
260 // (Note that is may not work on your server if the corresponding local is not installed.)
261 function autoLocale ()
263 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
264 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
265 { // (It's a bit crude, but it works very well. Prefered language is always presented first.)
266 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
268 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
271 // ------------------------------------------------------------------------------------------
272 // PubSubHubbub protocol support (if enabled) [UNTESTED]
273 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
274 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
277 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
279 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
281 indexUrl (). '?do=atom' ,
284 $p- > publish_update ( $topic_url );
288 // ------------------------------------------------------------------------------------------
289 // Session management
291 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
294 $ip = $_SERVER [ "REMOTE_ADDR" ];
295 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
296 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
297 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
301 function fillSessionInfo () {
302 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // generate unique random number (different than phpsessionid)
303 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
304 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
305 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
308 // Check that user/password is correct.
309 function check_auth ( $login , $password )
311 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
312 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
313 { // Login/password is correct.
315 logm ( 'Login successful' );
318 logm ( 'Login failed for user ' . $login );
322 // Returns true if the user is logged in.
323 function isLoggedIn ()
325 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) return true ;
327 if (! isset ( $GLOBALS [ 'login' ])) return false ; // Shaarli is not configured yet.
329 if (@ $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
)
334 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
335 if ( empty ( $_SESSION [ 'uid' ]) || ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) || time ()>= $_SESSION [ 'expires_on' ])
340 if (! empty ( $_SESSION [ 'longlastingsession' ])) $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
341 else $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
347 function logout () { if ( isset ( $_SESSION
)) { unset ( $_SESSION
[ 'uid' ]); unset ( $_SESSION
[ 'ip' ]); unset ( $_SESSION
[ 'username' ]); unset ( $_SESSION
[ 'privateonly' ]); }
348 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
352 // ------------------------------------------------------------------------------------------
353 // Brute force protection system
354 // Several consecutive failed logins will ban the IP address for 30 minutes.
355 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 ?>" );
356 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
357 // Signal a failed login. Will ban the IP if too many failures:
358 function ban_loginFailed ()
360 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
361 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
362 $gb [ 'FAILURES' ][ $ip ] ++
;
363 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
365 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
366 logm ( 'IP address banned from login' );
368 $GLOBALS [ 'IPBANS' ] = $gb ;
369 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
372 // Signals a successful login. Resets failed login counter.
373 function ban_loginOk ()
375 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
376 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
377 $GLOBALS [ 'IPBANS' ] = $gb ;
378 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
381 // Checks if the user CAN login. If 'true', the user can try to login.
382 function ban_canLogin ()
384 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
385 if ( isset ( $gb [ 'BANS' ][ $ip ]))
387 // User is banned. Check if the ban has expired:
388 if ( $gb [ 'BANS' ][ $ip ]<= time ())
389 { // Ban expired, user can try to login again.
391 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
392 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
393 return true ; // Ban has expired, user can login.
395 return false ; // User is banned.
397 return true ; // User is not banned.
400 // ------------------------------------------------------------------------------------------
401 // Process login form: Check if login/password is correct.
402 if ( isset ( $_POST [ 'login' ]))
404 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
405 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
406 { // Login/password is ok.
408 // If user wants to keep the session cookie even after the browser closes:
409 if (! empty ( $_POST [ 'longlastingsession' ]))
411 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
412 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
413 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
415 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
416 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set session cookie expiration on client side
417 // Note: Never forget the trailing slash on the cookie path !
418 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
420 else // Standard session expiration (=when browser closes)
422 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
423 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // 0 means "When browser closes"
424 session_regenerate_id ( true );
426 // Optional redirect after login:
427 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 ; }
428 if ( isset ( $_POST [ 'returnurl' ]))
430 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
431 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
433 header ( 'Location: ?' ); exit ;
439 if ( isset ( $_GET [ 'post' ])) { $redir
= '&post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' ); }
440 echo '<script language="JavaScript">alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
445 // ------------------------------------------------------------------------------------------
446 // Misc utility functions:
448 // Returns the server URL (including port and http/https), without path.
449 // eg. "http://myserver.com:8080"
450 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
453 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
454 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
455 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'HTTP_HOST' ]. $serverport ;
458 // Returns the absolute URL of current script, without the query.
459 // (eg. http://sebsauvage.net/links/)
462 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
463 // If the script is named 'index.php', we remove it (for better looking URLs,
464 // eg. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
465 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
466 return serverUrl () . $scriptname ;
469 // Returns the absolute URL of current script, WITH the query.
470 // (eg. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
473 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
476 // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
477 function return_bytes ( $val )
479 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
482 case 'g' : $val *= 1024 ;
483 case 'm' : $val *= 1024 ;
484 case 'k' : $val *= 1024 ;
489 // Try to determine max file size for uploads (POST).
490 // Returns an integer (in bytes)
491 function getMaxFileSize ()
493 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
494 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
495 // Return the smaller of two:
496 $maxsize = min ( $size1 , $size2 );
497 // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000)
501 // Tells if a string start with a substring or not.
502 function startsWith ( $haystack , $needle , $case = true )
504 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
505 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
508 // Tells if a string ends with a substring or not.
509 function endsWith ( $haystack , $needle , $case = true )
511 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
512 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
515 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
516 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
517 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
518 function linkdate2timestamp ( $linkdate )
521 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
522 return mktime ( $h , $m , $s , $M , $D , $Y );
525 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
526 (used to build the pubDate attribute in RSS feed.) */
527 function linkdate2rfc822 ( $linkdate )
529 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
532 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
533 (used to build the updated tags in ATOM feed.) */
534 function linkdate2iso8601 ( $linkdate )
536 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
539 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
540 (used to display link date on screen)
541 The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
542 function linkdate2locale ( $linkdate )
544 return utf8_encode ( strftime ( '%c' , linkdate2timestamp ( $linkdate ))); // %c is for automatic date format according to locale.
545 // Note that if you use a local which is not installed on your webserver,
546 // the date will not be displayed in the chosen locale, but probably in US notation.
549 // Parse HTTP response headers and return an associative array.
550 function http_parse_headers_shaarli ( $headers )
553 foreach ( $headers as $header )
555 $i = strpos ( $header , ': ' );
558 $key = substr ( $header , 0 , $i );
559 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
567 Input: $url : url to get (http://...)
568 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
569 Output: An array. [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message
570 [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
572 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
573 if (strpos($httpstatus,'200 OK')!==false)
574 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
576 echo 'There was an error: '.htmlspecialchars($httpstatus)
578 function getHTTP ( $url , $timeout = 30 )
582 $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
583 $context = stream_context_create ( $options );
584 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
585 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
586 $httpStatus = $http_response_header [ 0 ]; // eg. "HTTP/1.1 200 OK"
587 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
588 return array ( $httpStatus , $responseHeaders , $data );
590 catch ( Exception
$e ) // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
592 return array ( $e- > getMessage (), '' , '' );
596 // Extract title from an HTML document.
597 // (Returns an empty string if not found.)
598 function html_extract_title ( $html )
600 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
603 // ------------------------------------------------------------------------------------------
604 // Token management for XSRF protection
605 // Token should be used in any form which acts on data (create,update,delete,import...).
606 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
611 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
612 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
616 // Tells if a token is ok. Using this function will destroy the token.
618 function tokenOk ( $token )
620 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
622 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
623 return true ; // Token is ok.
625 return false ; // Wrong token, or already used.
628 // ------------------------------------------------------------------------------------------
629 /* This class is in charge of building the final page.
630 (This is basically a wrapper around RainTPL which pre-fills some fields.)
632 p.assign('myfield','myvalue');
633 p.renderPage('mytemplate');
638 private $tpl ; // RainTPL template
640 function __construct ()
645 private function initialize ()
647 $this- > tpl
= new RainTPL
;
648 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
649 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
650 $searchcrits = '' ; // Search criteria
651 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
652 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
653 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
654 $this- > tpl
-> assign ( 'source' , indexUrl ());
655 $this- > tpl
-> assign ( 'version' , shaarli_version
);
656 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
657 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
658 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links ?
659 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
660 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
661 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
665 // The following assign() method is basically the same as RainTPL (except that it's lazy)
666 public function assign ( $what , $where )
668 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
669 $this- > tpl
-> assign ( $what , $where );
672 // Render a specific page (using a template).
673 // eg. pb.renderPage('picwall')
674 public function renderPage ( $page )
676 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
677 $this- > tpl
-> draw ( $page );
681 // ------------------------------------------------------------------------------------------
682 /* Data storage for links.
683 This object behaves like an associative array.
685 $mylinks = new linkdb();
686 echo $mylinks['20110826_161819']['title'];
687 foreach($mylinks as $link)
688 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
691 title : Title of the link
692 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (eg.'?m-ukcw')
693 description : description of the entry
694 private : Is this link private ? 0=no, other value=yes
695 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (eg.'20110914_192317')
696 tags : tags attached to this entry (separated by spaces)
698 We implement 3 interfaces:
699 - ArrayAccess so that this object behaves like an associative array.
700 - Iterator so that this object can be used in foreach() loops.
701 - Countable interface so that we can do a count() on this object.
703 class linkdb
implements Iterator
, Countable
, ArrayAccess
705 private $links ; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...)
706 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
707 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
708 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
709 private $loggedin ; // Is the used logged in ? (used to filter private links)
712 function __construct ( $isLoggedIn )
713 // Input : $isLoggedIn : is the used logged in ?
715 $this- > loggedin
= $isLoggedIn ;
716 $this- > checkdb (); // Make sure data file exists.
717 $this- > readdb (); // Then read it.
720 // ---- Countable interface implementation
721 public function count () { return count ( $this
-> links
); }
723 // ---- ArrayAccess interface implementation
724 public function offsetSet ( $offset , $value )
726 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
727 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and url.' );
728 if ( empty ( $offset )) die ( 'You must specify a key.' );
729 $this- > links
[ $offset ] = $value ;
730 $this- > urls
[ $value [ 'url' ]]= $offset ;
732 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
733 public function offsetUnset ( $offset )
735 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
736 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
737 unset ( $this- > links
[ $offset ]);
739 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
741 // ---- Iterator interface implementation
742 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
743 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
744 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
745 function next () { ++$this
-> position
; } // go to next item
746 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
749 private function checkdb () // Check if db directory and file exists.
751 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
753 $this- > links
= array ();
754 $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' );
755 $this- > links
[ $link [ 'linkdate' ]] = $link ;
756 $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' );
757 $this- > links
[ $link [ 'linkdate' ]] = $link ;
758 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
762 // Read database from disk to memory
763 private function readdb ()
766 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
767 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
769 // If user is not logged in, filter private links.
770 if (! $this- > loggedin
)
773 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
774 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
777 // Keep the list of the mapping URLs-->linkdate up-to-date.
779 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
782 // Save database from memory to disk.
783 public function savedb ()
785 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
786 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
790 // Returns the link for a given URL (if it exists). false it does not exist.
791 public function getLinkFromUrl ( $url )
793 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
797 // Case insentitive search among links (in url, title and description). Returns filtered list of links.
798 // eg. print_r($mydb->filterFulltext('hollandais'));
799 public function filterFulltext ( $searchterms )
801 // FIXME: explode(' ',$searchterms) and perform a AND search.
802 // FIXME: accept double-quotes to search for a string "as is" ?
804 $s = strtolower ( $searchterms );
805 foreach ( $this- > links
as $l )
807 $found = ( strpos ( strtolower ( $l [ 'title' ]), $s )!== false )
808 || ( strpos ( strtolower ( $l [ 'description' ]), $s )!== false )
809 || ( strpos ( strtolower ( $l [ 'url' ]), $s )!== false )
810 || ( strpos ( strtolower ( $l [ 'tags' ]), $s )!== false );
811 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
818 // You can specify one or more tags (tags can be separated by space or comma).
819 // eg. print_r($mydb->filterTags('linux programming'));
820 public function filterTags ( $tags , $casesensitive = false )
822 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : strtolower ( $tags )));
823 $searchtags = explode ( ' ' , $t );
825 foreach ( $this- > links
as $l )
827 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: strtolower ( $l [ 'tags' ])));
828 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
829 $filtered [ $l [ 'linkdate' ]] = $l ;
835 // Filter by day. Day must be in the form 'YYYYMMDD' (eg. '20120125')
836 // Sort order is: older articles first.
837 // eg. print_r($mydb->filterDay('20120125'));
838 public function filterDay ( $day )
841 foreach ( $this- > links
as $l )
843 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
848 // Filter by smallHash.
849 // Only 1 article is returned.
850 public function filterSmallHash ( $smallHash )
853 foreach ( $this- > links
as $l )
855 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
857 $filtered [ $l [ 'linkdate' ]] = $l ;
864 // Returns the list of all tags
865 // Output: associative array key=tags, value=0
866 public function allTags ()
869 foreach ( $this- > links
as $link )
870 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
871 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
872 arsort ( $tags ); // Sort tags by usage (most used tag first)
876 // Returns the list of days containing articles (oldest first)
877 // Output: An array containing days (in format YYYYMMDD).
878 public function days ()
881 foreach ( array_keys ( $this- > links
) as $day )
883 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
885 $linkdays = array_keys ( $linkdays );
891 // ------------------------------------------------------------------------------------------
892 // Ouput the last N links in RSS 2.0 format.
895 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
897 // $usepermalink : If true, use permalink instead of final link.
898 // User just has to add 'permalink' in URL parameters. eg. http://mysite.com/shaarli/?do=rss&permalinks
899 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
902 $query = $_SERVER [ "QUERY_STRING" ];
903 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
904 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
906 // If cached was not found (or not usable), then read the database and build the response:
907 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
909 // Optionnaly filter the results:
910 $linksToDisplay = array ();
911 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
912 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
913 else $linksToDisplay = $LINKSDB ;
914 $nblinksToDisplay = 50 ; // Number of links to display.
915 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
917 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
920 $pageaddr = htmlspecialchars ( indexUrl ());
921 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
922 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
923 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
924 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
926 echo '<!-- PubSubHubbub Discovery -->' ;
927 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
928 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
929 echo '<!-- End Of PubSubHubbub Discovery -->' ;
932 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
933 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
935 $link = $linksToDisplay [ $keys [ $i ]];
936 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
937 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
938 $absurl = htmlspecialchars ( $link [ 'url' ]);
939 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
940 if ( $usepermalinks === true )
941 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $guid . '</link>' ;
943 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
944 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
945 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
947 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
950 // Add permalink in description
951 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
952 // If user wants permalinks first, put the final link in description
953 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
954 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
955 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
958 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
960 $cache- > cache ( ob_get_contents ());
965 // ------------------------------------------------------------------------------------------
966 // Ouput the last N links in ATOM format.
969 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
971 // $usepermalink : If true, use permalink instead of final link.
972 // User just has to add 'permalink' in URL parameters. eg. http://mysite.com/shaarli/?do=atom&permalinks
973 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
976 $query = $_SERVER [ "QUERY_STRING" ];
977 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
978 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
979 // If cached was not found (or not usable), then read the database and build the response:
981 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
984 // Optionnaly filter the results:
985 $linksToDisplay = array ();
986 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
987 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
988 else $linksToDisplay = $LINKSDB ;
989 $nblinksToDisplay = 50 ; // Number of links to display.
990 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
992 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
995 $pageaddr = htmlspecialchars ( indexUrl ());
999 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
1000 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
1002 $link = $linksToDisplay [ $keys [ $i ]];
1003 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
1004 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
1005 $latestDate = max ( $latestDate , $iso8601date );
1006 $absurl = htmlspecialchars ( $link [ 'url' ]);
1007 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1008 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1009 if ( $usepermalinks === true )
1010 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1012 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1013 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1015 // Add permalink in description
1016 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1017 // If user wants permalinks first, put the final link in description
1018 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1019 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1021 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1022 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1024 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1025 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1027 $entries .= "</entry> \n " ;
1030 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1031 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1032 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1033 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1034 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1036 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1037 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1038 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1040 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1041 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1043 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1046 $cache- > cache ( ob_get_contents ());
1051 // ------------------------------------------------------------------------------------------
1052 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1053 // Gives the last 7 days (which have links).
1054 // This RSS feed cannot be filtered.
1055 function showDailyRSS ()
1058 $query = $_SERVER [ "QUERY_STRING" ];
1059 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1060 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1061 // If cached was not found (or not usable), then read the database and build the response:
1062 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1064 /* Some Shaarlies may have very few links, so we need to look
1065 back in time (rsort()) until we have enough days ($nb_of_days).
1067 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1069 $nb_of_days = 7 ; // We take 7 days.
1072 foreach ( $linkdates as $linkdate )
1074 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1075 if ( strcmp ( $day , $today )< 0 )
1077 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1078 $days [ $day ][]= $linkdate ;
1080 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days ?
1083 // Build the RSS feed.
1084 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1085 $pageaddr = htmlspecialchars ( indexUrl ());
1086 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1087 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1088 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1090 foreach ( $days as $day => $linkdates ) // For each day.
1092 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1093 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1094 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1095 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1096 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1098 // Build the HTML body of this RSS entry.
1102 // We pre-format some fields for proper output.
1103 foreach ( $linkdates as $linkdate )
1105 $l = $LINKSDB [ $linkdate ];
1106 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1107 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1108 $l [ 'localdate' ]= linkdate2locale ( $l [ 'linkdate' ]);
1109 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1110 $links [ $linkdate ]= $l ;
1112 // Then build the HTML for this day:
1114 $tpl- > assign ( 'links' , $links );
1115 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1117 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1120 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1122 $cache- > cache ( ob_get_contents ());
1128 function showDaily ()
1130 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1133 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1134 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1136 $days = $LINKSDB- > days ();
1137 $i = array_search ( $day , $days );
1138 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1143 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1144 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1147 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1148 // We pre-format some fields for proper output.
1149 foreach ( $linksToDisplay as $key => $link )
1151 $taglist = explode ( ' ' , $link [ 'tags' ]);
1152 uasort ( $taglist , 'strcasecmp' );
1153 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1154 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1155 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1158 /* We need to spread the articles on 3 columns.
1159 I did not want to use a javascript lib like http://masonry.desandro.com/
1160 so I manually spread entries with a simple method: I roughly evaluate the
1161 height of a div according to title and description length.
1163 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1164 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1165 foreach ( $linksToDisplay as $key => $link )
1167 // Roughly estimate length of entry (by counting characters)
1168 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1169 // Description: 836 characters gives roughly 342 pixel height.
1170 // This is not perfect, but it's usually ok.
1171 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1172 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1173 // Then put in column which is the less filled:
1174 $smallest = min ( $fill ); // find smallest value in array.
1175 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1176 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1177 $fill [ $index ] +
= $length ;
1179 $PAGE = new pageBuilder
;
1180 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1181 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1182 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1183 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1184 $PAGE- > assign ( 'col2' , $columns [ 1 ]);
1185 $PAGE- > assign ( 'col3' , $columns [ 2 ]);
1186 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1187 $PAGE- > assign ( 'previousday' , $previousday );
1188 $PAGE- > assign ( 'nextday' , $nextday );
1189 $PAGE- > renderPage ( 'daily' );
1194 // ------------------------------------------------------------------------------------------
1195 // Render HTML page (according to URL parameters and user rights)
1196 function renderPage ()
1198 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1200 // -------- Display login form.
1201 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1203 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1204 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1205 $PAGE = new pageBuilder
;
1206 $PAGE- > assign ( 'token' , $token );
1207 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1208 $PAGE- > renderPage ( 'loginform' );
1211 // -------- User wants to logout.
1212 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1216 header ( 'Location: ?' );
1220 // -------- Picture wall
1221 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1223 // Optionnaly filter the results:
1225 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1226 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1227 else $links = $LINKSDB ;
1229 $linksToDisplay = array ();
1231 // Get only links which have a thumbnail.
1232 foreach ( $links as $link )
1234 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1235 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1236 if ( $thumb != '' ) // Only output links which have a thumbnail.
1238 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1239 $link [ 'permalink' ]= $permalink ;
1240 $linksToDisplay []= $link ; // Add to array.
1243 $PAGE = new pageBuilder
;
1244 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1245 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1246 $PAGE- > renderPage ( 'picwall' );
1250 // -------- Tag cloud
1251 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1253 $tags = $LINKSDB- > allTags ();
1254 // We sort tags alphabetically, then choose a font size according to count.
1255 // First, find max value.
1256 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1259 foreach ( $tags as $key => $value )
1261 $tagList [ $key ] = array ( 'count' => $value , 'size' => max ( 40 * $value / $maxcount , 8 ));
1263 $PAGE = new pageBuilder
;
1264 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1265 $PAGE- > assign ( 'tags' , $tagList );
1266 $PAGE- > renderPage ( 'tagcloud' );
1270 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1271 if ( isset ( $_GET [ 'addtag' ]))
1273 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1274 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1275 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1276 $params [ 'searchtags' ] = ( empty ( $params [ 'searchtags' ]) ? trim ( $_GET [ 'addtag' ]) : trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]));
1277 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1278 header ( 'Location: ?' . http_build_query ( $params ));
1282 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1283 if ( isset ( $_GET [ 'removetag' ]))
1285 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1286 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1287 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1288 if ( isset ( $params [ 'searchtags' ]))
1290 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1291 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1292 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1293 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1295 header ( 'Location: ?' . http_build_query ( $params ));
1299 // -------- User wants to change the number of links per page (linksperpage=...)
1300 if ( isset ( $_GET [ 'linksperpage' ]))
1302 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1303 // Make sure the referer is from Shaarli itself.
1305 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1306 $referer = $_SERVER [ 'HTTP_REFERER' ];
1307 header ( 'Location: ' . $referer );
1311 // -------- User wants to see only private links (toggle)
1312 if ( isset ( $_GET [ 'privateonly' ]))
1314 if ( empty ( $_SESSION [ 'privateonly' ]))
1316 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1320 unset ( $_SESSION [ 'privateonly' ]); // See all links
1322 // Make sure the referer is from Shaarli itself.
1324 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1325 $referer = $_SERVER [ 'HTTP_REFERER' ];
1326 header ( 'Location: ' . $referer );
1330 // -------- Handle other actions allowed for non-logged in users:
1333 // User tries to post new link but is not loggedin:
1334 // Show login screen, then redirect to ?post=...
1335 if ( isset ( $_GET [ 'post' ]))
1337 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.
1340 $PAGE = new pageBuilder
;
1341 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1342 $PAGE- > renderPage ( 'linklist' );
1343 exit ; // Never remove this one ! All operations below are reserved for logged in user.
1346 // -------- All other functions are reserved for the registered user:
1348 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1349 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1351 $PAGE = new pageBuilder
;
1352 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1353 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1354 $PAGE- > renderPage ( 'tools' );
1358 // -------- User wants to change his/her password.
1359 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1361 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1362 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1364 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1366 // Make sure old password is correct.
1367 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1368 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1369 // Save new password
1370 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1371 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1373 echo '<script language="JavaScript">alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1376 else // show the change password form.
1378 $PAGE = new pageBuilder
;
1379 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1380 $PAGE- > assign ( 'token' , getToken ());
1381 $PAGE- > renderPage ( 'changepassword' );
1386 // -------- User wants to change configuration
1387 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1389 if (! empty ( $_POST [ 'title' ]) )
1391 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1393 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1394 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1395 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1396 $GLOBALS [ 'timezone' ] = $tz ;
1397 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1398 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1399 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1400 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1401 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1403 echo '<script language="JavaScript">alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1406 else // Show the configuration form.
1408 $PAGE = new pageBuilder
;
1409 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1410 $PAGE- > assign ( 'token' , getToken ());
1411 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1412 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1413 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1414 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: put entire tz form generation in template ?
1415 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1416 $PAGE- > renderPage ( 'configure' );
1421 // -------- User wants to rename a tag or delete it
1422 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1424 if ( empty ( $_POST [ 'fromtag' ]))
1426 $PAGE = new pageBuilder
;
1427 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1428 $PAGE- > assign ( 'token' , getToken ());
1429 $PAGE- > renderPage ( 'changetag' );
1432 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1435 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1437 $needle = trim ( $_POST [ 'fromtag' ]);
1438 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1439 foreach ( $linksToAlter as $key => $value )
1441 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1442 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1443 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1444 $LINKSDB [ $key ]= $value ;
1446 $LINKSDB- > savedb (); // save to disk
1447 echo '<script language="JavaScript">alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1452 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1454 $needle = trim ( $_POST [ 'fromtag' ]);
1455 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1456 foreach ( $linksToAlter as $key => $value )
1458 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1459 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Remplace tags value.
1460 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1461 $LINKSDB [ $key ]= $value ;
1463 $LINKSDB- > savedb (); // save to disk
1464 echo '<script language="JavaScript">alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1469 // -------- User wants to add a link without using the bookmarklet: show form.
1470 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1472 $PAGE = new pageBuilder
;
1473 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1474 $PAGE- > renderPage ( 'addlink' );
1478 // -------- User clicked the "Save" button when editing a link: Save link to database.
1479 if ( isset ( $_POST [ 'save_edit' ]))
1481 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
1482 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1483 $linkdate = $_POST [ 'lf_linkdate' ];
1484 $url = trim ( $_POST [ 'lf_url' ]);
1485 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ))
1486 $url = 'http://' . $url ;
1487 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1488 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1489 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1490 $LINKSDB [ $linkdate ] = $link ;
1491 $LINKSDB- > savedb (); // save to disk
1494 // If we are called from the bookmarklet, we must close the popup:
1495 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1496 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1497 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1498 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1502 // -------- User clicked the "Cancel" button when editing a link.
1503 if ( isset ( $_POST [ 'cancel_edit' ]))
1505 // If we are called from the bookmarklet, we must close the popup;
1506 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1507 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1508 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1509 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1513 // -------- User clicked the "Delete" button when editing a link : Delete link from database.
1514 if ( isset ( $_POST [ 'delete_link' ]))
1516 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1517 // We do not need to ask for confirmation:
1518 // - confirmation is handled by javascript
1519 // - we are protected from XSRF by the token.
1520 $linkdate = $_POST [ 'lf_linkdate' ];
1521 unset ( $LINKSDB [ $linkdate ]);
1522 $LINKSDB- > savedb (); // save to disk
1524 // If we are called from the bookmarklet, we must close the popup:
1525 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1526 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1527 if ( $returnurl == '?' ) { $returnurl
= ( isset ( $_SERVER
[ 'HTTP_REFERER' ]) ? $_SERVER
[ 'HTTP_REFERER' ] : '?' ); }
1528 header ( 'Location: ' . $returnurl ); // After deleting the link, redirect to the page the user was on.
1532 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1533 if ( isset ( $_GET [ 'edit_link' ]))
1535 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1536 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1537 $PAGE = new pageBuilder
;
1538 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1539 $PAGE- > assign ( 'link' , $link );
1540 $PAGE- > assign ( 'link_is_new' , false );
1541 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1542 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1543 $PAGE- > renderPage ( 'editlink' );
1547 // -------- User want to post a new link: Display link edit form.
1548 if ( isset ( $_GET [ 'post' ]))
1552 // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
1553 $i = strpos ( $url , '&utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1554 $i = strpos ( $url , '?utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1555 $i = strpos ( $url , '#xtor=RSS-' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1557 $link_is_new = false ;
1558 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1561 $link_is_new = true ; // This is a new link
1562 $linkdate = strval ( date ( 'Ymd_His' ));
1563 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1564 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1565 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1566 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1567 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1568 // 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.)
1569 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1571 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1572 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1573 if ( strpos ( $status , '200 OK' )!== false )
1575 // Look for charset in html header.
1576 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1578 // If found, extract encoding.
1579 if (! empty ( $meta [ 0 ]))
1581 // Get encoding specified in header.
1582 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1583 // If charset not found, use utf-8.
1584 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1586 else { $html_charset
= 'utf-8' ; }
1589 $title = html_extract_title ( $data );
1592 // Re-encode title in utf-8 if necessary.
1593 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1597 if ( $url == '' ) $url = '?' . smallHash ( $linkdate ); // In case of empty URL, this is just a text (with a link that point to itself)
1598 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1601 $PAGE = new pageBuilder
;
1602 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1603 $PAGE- > assign ( 'link' , $link );
1604 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1605 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1606 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1607 $PAGE- > renderPage ( 'editlink' );
1611 // -------- Export as Netscape Bookmarks HTML file.
1612 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1614 if ( empty ( $_GET [ 'what' ]))
1616 $PAGE = new pageBuilder
;
1617 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1618 $PAGE- > renderPage ( 'export' );
1621 $exportWhat = $_GET [ 'what' ];
1622 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export ???' );
1624 header ( 'Content-Type: text/html; charset=utf-8' );
1625 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1626 $currentdate = date ( 'Y/m/d H:i:s' );
1628 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1629 <!-- This is an automatically generated file.
1630 It will be read and overwritten.
1632 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1633 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1634 <TITLE>Bookmarks</TITLE>
1637 foreach ( $LINKSDB as $link )
1639 if ( $exportWhat == 'all' ||
1640 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1641 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1643 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1644 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1645 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1646 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1652 // -------- User is uploading a file for import
1653 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1655 // If file is too big, some form field may be missing.
1656 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1658 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1659 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>' ;
1662 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1667 // -------- Show upload/import dialog:
1668 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1670 $PAGE = new pageBuilder
;
1671 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1672 $PAGE- > assign ( 'token' , getToken ());
1673 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1674 $PAGE- > renderPage ( 'import' );
1678 // -------- Otherwise, simply display search form and links:
1679 $PAGE = new pageBuilder
;
1680 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1681 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1682 $PAGE- > renderPage ( 'linklist' );
1686 // -----------------------------------------------------------------------------------------------
1687 // Process the import file form.
1688 function importFile ()
1690 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1691 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1692 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1693 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1694 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1695 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private ?
1696 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones ?
1701 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1703 // Then import the bookmarks.
1704 if ( $type == 'netscape' )
1706 // This is a standard Netscape-style bookmark file.
1707 // This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
1708 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1710 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1711 $d = explode ( '<DD>' , $html );
1712 if ( startswith ( $d [ 0 ], '<A ' ))
1714 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1715 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1716 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1717 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1719 foreach ( $matches as $m )
1721 $attr = $m [ 1 ]; $value = $m [ 2 ];
1722 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1723 elseif ( $attr == 'ADD_DATE' )
1725 $raw_add_date = intval ( $value );
1726 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1728 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1729 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1731 if ( $link [ 'url' ]!= '' )
1733 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1734 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1736 { // Link not in database, let's import it...
1737 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1739 // Make sure date/time is not already used by another link.
1740 // (Some bookmark files have several different links with the same ADD_DATE)
1741 // We increment date by 1 second until we find a date which is not used in db.
1742 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1743 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1744 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1745 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1748 else // link already present in database.
1751 { // If overwrite is required, we import link data, except date/time.
1752 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1753 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1763 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1767 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1771 // -----------------------------------------------------------------------------------------------
1772 // Template for the list of links (<div id="linklist">)
1773 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1774 function buildLinkList ( $PAGE , $LINKSDB )
1776 // ---- Filter link database according to parameters
1777 $linksToDisplay = array ();
1780 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1782 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1783 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1784 $search_type = 'fulltext' ;
1786 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1788 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1789 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1790 $search_type = 'tags' ;
1792 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1794 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1795 if ( count ( $linksToDisplay )== 0 )
1797 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1798 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1799 echo '<br>You would mind <a href="?">clicking here</a> ?' ;
1802 $search_type = 'permalink' ;
1805 $linksToDisplay = $LINKSDB ; // otherwise, display without filtering.
1807 // Option: Show only private links
1808 if (! empty ( $_SESSION [ 'privateonly' ]))
1811 foreach ( $linksToDisplay as $linkdate => $link )
1813 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1815 $linksToDisplay = $tmp ;
1818 // ---- Handle paging.
1819 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ???
1820 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1821 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1823 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks php.
1825 // If there is only a single link, we change on-the-fly the title of the page.
1826 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1828 // Select articles according to paging.
1829 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1830 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1831 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1832 $page = ( $page < 1 ? 1 : $page );
1833 $page = ( $page > $pagecount ? $pagecount : $page );
1834 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1835 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1836 $linkDisp = array (); // Links to display
1837 while ( $i < $end && $i < count ( $keys ))
1839 $link = $linksToDisplay [ $keys [ $i ]];
1840 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1841 $title = $link [ 'title' ];
1842 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1843 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1844 $link [ 'localdate' ]= linkdate2locale ( $link [ 'linkdate' ]);
1845 $taglist = explode ( ' ' , $link [ 'tags' ]);
1846 uasort ( $taglist , 'strcasecmp' );
1847 $link [ 'taglist' ]= $taglist ;
1848 $linkDisp [ $keys [ $i ]] = $link ;
1852 // Compute paging navigation
1853 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1854 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1856 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1857 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1859 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1861 // Fill all template fields.
1862 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1863 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1864 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1865 $PAGE- > assign ( 'page_current' , $page );
1866 $PAGE- > assign ( 'page_max' , $pagecount );
1867 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1868 $PAGE- > assign ( 'search_type' , $search_type );
1869 $PAGE- > assign ( 'search_crits' , $search_crits );
1870 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // optional redirector URL
1871 $PAGE- > assign ( 'token' , $token );
1872 $PAGE- > assign ( 'links' , $linkDisp );
1876 // Compute the thumbnail for a link.
1878 // with a link to the original URL.
1879 // Understands various services (youtube.com...)
1880 // Input: $url = url for which the thumbnail must be found.
1881 // $href = if provided, this URL will be followed instead of $url
1882 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1883 // Some of them may be missing.
1884 // Return an empty array if no thumbnail available.
1885 function computeThumbnail ( $url , $href = false )
1887 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1888 if ( $href == false ) $href = $url ;
1890 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1891 // (eg. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1892 // ^^^^^^^^^^^ ^^^^^^^^^^^
1893 $domain = parse_url ( $url , PHP_URL_HOST
);
1894 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1896 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1897 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'http://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1898 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1900 if ( $domain == 'youtu.be' ) // Youtube short links
1902 $path = parse_url ( $url , PHP_URL_PATH
);
1903 return array ( 'src' => 'http://img.youtube.com/vi' . $path . '/default.jpg' ,
1904 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1906 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1908 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1909 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1910 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1913 if ( $domain == 'imgur.com' )
1915 $path = parse_url ( $url , PHP_URL_PATH
);
1916 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1917 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'http://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1918 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1919 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'http://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1920 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1922 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'http://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1923 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1925 if ( $domain == 'i.imgur.com' )
1927 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1928 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'http://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1929 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1931 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1933 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1935 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1936 return array ( 'src' => $thumburl ,
1937 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1940 if ( endsWith ( $domain , '.imageshack.us' ))
1942 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1943 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1945 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1946 return array ( 'src' => $thumburl ,
1947 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1951 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1952 // So we deport the thumbnail generation in order not to slow down page generation
1953 // (and we also cache the thumbnail)
1955 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1957 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1958 || $domain == 'vimeo.com'
1959 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1960 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1963 if ( $domain == 'vimeo.com' )
1964 { // Make sure this vimeo url points to a video (/xxx... where xxx is numeric)
1965 $path = parse_url ( $url , PHP_URL_PATH
);
1966 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1968 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1969 { // Make sure this url points to a single comic (/xxx... where xxx is numeric)
1970 $path = parse_url ( $url , PHP_URL_PATH
);
1971 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1973 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1974 { // Make sure this TED url points to a video (/talks/...)
1975 $path = parse_url ( $url , PHP_URL_PATH
);
1976 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1978 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1979 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1980 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1983 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1984 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1985 // But using the extension will do.
1986 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1987 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1989 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1990 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1991 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1993 return array (); // No thumbnail.
1998 // Returns the HTML code to display a thumbnail for a link
1999 // with a link to the original URL.
2000 // Understands various services (youtube.com...)
2001 // Input: $url = url for which the thumbnail must be found.
2002 // $href = if provided, this URL will be followed instead of $url
2003 // Returns '' if no thumbnail available.
2004 function thumbnail ( $url , $href = false )
2006 $t = computeThumbnail ( $url , $href );
2007 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2009 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2010 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2011 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2012 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2013 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2019 // Returns the HTML code to display a thumbnail for a link
2020 // for the picture wall (using lazy image loading)
2021 // Understands various services (youtube.com...)
2022 // Input: $url = url for which the thumbnail must be found.
2023 // $href = if provided, this URL will be followed instead of $url
2024 // Returns '' if no thumbnail available.
2025 function lazyThumbnail ( $url , $href = false )
2027 $t = computeThumbnail ( $url , $href );
2028 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2030 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2032 // Lazy image (only loaded by javascript when in the viewport).
2033 if (! empty ( $GLOBALS [ 'disablejquery' ])) // (except if jQuery is disabled)
2034 $html .= '<img class="lazyimage" src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2036 $html .= '<img class="lazyimage" src="#" data-original="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2038 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2039 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2040 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2041 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2044 // No-javascript fallback.
2045 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2046 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2047 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2048 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2049 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2050 $html .= '></noscript></a>' ;
2056 // -----------------------------------------------------------------------------------------------
2058 // This function should NEVER be called if the file data/config.php exists.
2061 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2062 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2065 // This part makes sure sessions works correctly.
2066 // (Because on some hosts, session.save_path may not be set correctly,
2067 // or we may not have write access to it.)
2068 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2069 { // Step 2: Check if data in session is correct.
2070 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2071 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2072 echo 'It currently points to ' . session_save_path (). '<br><br><a href="?">Click to try again.</a></pre>' ;
2075 if (! isset ( $_SESSION [ 'session_tested' ]))
2076 { // Step 1 : Try to store data in session and reload page.
2077 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2078 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2080 if ( isset ( $_GET [ 'test_session' ]))
2081 { // Step 3: Sessions are ok. Remove test parameter from URL.
2082 header ( 'Location: ' . indexUrl ());
2086 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2089 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2090 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2091 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2092 $GLOBALS [ 'timezone' ] = $tz ;
2093 // Everything is ok, let's create config file.
2094 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2095 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2096 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2097 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2099 echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location= \' ?do=login \' ;</script>' ;
2103 // Display config form:
2104 list ( $timezone_form , $timezone_js ) = templateTZform ();
2105 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td valign="top"><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2107 $PAGE = new pageBuilder
;
2108 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2109 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2110 $PAGE- > renderPage ( 'install' );
2114 // Generates the timezone selection form and javascript.
2115 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2116 // Output: array(html,js)
2117 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2118 // Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr)
2119 function templateTZform ( $ptz = false )
2121 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
2123 // Try to split the provided timezone.
2124 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2125 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2127 // Display config form:
2128 $timezone_form = '' ;
2130 // The list is in the forme "Europe/Paris", "America/Argentina/Buenos_Aires"...
2131 // We split the list in continents/cities.
2132 $continents = array ();
2134 foreach ( timezone_identifiers_list () as $tz )
2136 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2137 $spos = strpos ( $tz , '/' );
2140 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2141 $continents [ $continent ]= 1 ;
2142 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2143 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? 'selected' : '' ). '>' . $city . '</option>' ;
2146 $continents_html = '' ;
2147 $continents = array_keys ( $continents );
2148 foreach ( $continents as $continent )
2149 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? 'selected' : '' ). '>' . $continent . '</option>' ;
2150 $cities_html = $cities [ $pcontinent ];
2151 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2152 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2153 $timezone_js = "<script language= \" JavaScript \" >" ;
2154 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2155 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2156 $timezone_js .= "</script>" ;
2157 return array ( $timezone_form , $timezone_js );
2159 return array ( '' , '' );
2162 // Tells if a timezone is valid or not.
2163 // If not valid, returns false.
2164 // If system does not support timezone list, returns false.
2165 function isTZvalid ( $continent , $city )
2167 $tz = $continent . '/' . $city ;
2168 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
2170 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone ?
2175 if (! function_exists ( 'json_encode' )) {
2176 function json_encode ( $data ) {
2177 switch ( $type = gettype ( $data )) {
2181 return ( $data ? 'true' : 'false' );
2187 return '"' . addslashes ( $data ) . '"' ;
2189 $data = get_object_vars ( $data );
2191 $output_index_count = 0 ;
2192 $output_indexed = array ();
2193 $output_associative = array ();
2194 foreach ( $data as $key => $value ) {
2195 $output_indexed [] = json_encode ( $value );
2196 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2197 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2198 $output_index_count = NULL ;
2201 if ( $output_index_count !== NULL ) {
2202 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2204 return ' {' . implode(',', $output_associative) . '} ' ;
2207 return '' ; // Not supported
2212 // Webservices (for use with jQuery/jQueryUI)
2213 // eg. index.php?ws=tags&term=minecr
2214 function processWS ()
2216 if ( empty ( $_GET [ 'ws' ]) || empty ( $_GET [ 'term' ])) return ;
2217 $term = $_GET [ 'term' ];
2218 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
2219 header ( 'Content-Type: application/json; charset=utf-8' );
2221 // Search in tags (case insentitive, cumulative search)
2222 if ( $_GET [ 'ws' ]== 'tags' )
2224 $tags = explode ( ' ' , str_replace ( ',' , ' ' , $term )); $last = array_pop ( $tags ); // Get the last term ("a b c d" ==> "a b c", "d")
2225 $addtags = '' ; if ( $tags ) $addtags = implode ( ' ' , $tags ). ' ' ; // We will pre-pend previous tags
2227 /* To speed up things, we store list of tags in session */
2228 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2229 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2231 if ( startsWith ( $key , $last , $case = false ) && ! in_array ( $key , $tags )) $suggested [ $addtags . $key . ' ' ]= 0 ;
2233 echo json_encode ( array_keys ( $suggested ));
2237 // Search a single tag (case sentitive, single tag search)
2238 if ( $_GET [ 'ws' ]== 'singletag' )
2240 /* To speed up things, we store list of tags in session */
2241 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2242 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2244 if ( startsWith ( $key , $term , $case = true )) $suggested [ $key ]= 0 ;
2246 echo json_encode ( array_keys ( $suggested ));
2251 // Re-write configuration file according to globals.
2252 // Requires some $GLOBALS to be set (login,hash,salt,title).
2253 // If the config file cannot be saved, an error message is dislayed and the user is redirected to "Tools" menu.
2254 // (otherwise, the function simply returns.)
2255 function writeConfig ()
2257 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2258 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2259 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2260 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2261 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2262 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2263 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2265 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2267 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>' ;
2272 /* Because some f*cking services like Flickr require an extra HTTP request to get the thumbnail URL,
2273 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2274 The following function takes the URL a link (eg. a flickr page) and return the proper thumbnail.
2275 This function is called by passing the url:
2276 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2277 [URL] is the URL of the link (eg. a flickr page)
2278 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2279 The function below will fetch the image from the webservice and store it in the cache.
2281 function genThumbnail ()
2283 // Make sure the parameters in the URL were generated by us.
2284 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2285 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy !' );
2287 // Let's see if we don't already have the image for this URL in the cache.
2288 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2289 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2290 { // We have the thumbnail, just serve it:
2291 header ( 'Content-Type: image/jpeg' );
2292 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2295 // We may also serve a blank image (if service did not respond)
2296 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2297 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2299 header ( 'Content-Type: image/gif' );
2300 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2304 // Otherwise, generate the thumbnail.
2305 $url = $_GET [ 'url' ];
2306 $domain = parse_url ( $url , PHP_URL_HOST
);
2308 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2310 // Crude replacement to handle new Flickr domain policy (They prefer www. now)
2311 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2313 // Is this a link to an image, or to a flickr page ?
2315 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2316 { // This is a direct link to an image. eg. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2317 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2318 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2320 else // this is a flickr page (html)
2322 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2323 if ( strpos ( $httpstatus , '200 OK' )!== false )
2325 // Flickr now nicely provides the URL of the thumbnail in each flickr page.
2326 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2327 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2329 // In albums (and some other pages), the link rel="image_src" is not provided,
2330 // but flickr provides:
2331 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2334 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2335 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2341 { // Let's download the image.
2342 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2343 if ( strpos ( $httpstatus , '200 OK' )!== false )
2345 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2346 header ( 'Content-Type: image/jpeg' );
2353 elseif ( $domain == 'vimeo.com' )
2355 // This is more complex: we have to perform a HTTP request, then parse the result.
2356 // Maybe we should deport this to javascript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2357 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2358 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2359 if ( strpos ( $httpstatus , '200 OK' )!== false )
2361 $t = unserialize ( $data );
2362 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2363 // Then we download the image and serve it to our client.
2364 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2365 if ( strpos ( $httpstatus , '200 OK' )!== false )
2367 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2368 header ( 'Content-Type: image/jpeg' );
2375 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2377 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2378 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2379 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2380 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2381 if ( strpos ( $httpstatus , '200 OK' )!== false )
2383 // Extract the link to the thumbnail
2384 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2385 if (! empty ( $matches [ 1 ]))
2386 { // Let's download the image.
2387 $imageurl = $matches [ 1 ];
2388 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2389 if ( strpos ( $httpstatus , '200 OK' )!== false )
2391 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2392 file_put_contents ( $filepath , $data ); // Save image to cache.
2393 if ( resizeImage ( $filepath ))
2395 header ( 'Content-Type: image/jpeg' );
2396 echo file_get_contents ( $filepath );
2404 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2406 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2407 // http://xkcd.com/327/
2408 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2409 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2410 if ( strpos ( $httpstatus , '200 OK' )!== false )
2412 // Extract the link to the thumbnail
2413 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2414 if (! empty ( $matches [ 1 ]))
2415 { // Let's download the image.
2416 $imageurl = $matches [ 1 ];
2417 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2418 if ( strpos ( $httpstatus , '200 OK' )!== false )
2420 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2421 file_put_contents ( $filepath , $data ); // Save image to cache.
2422 if ( resizeImage ( $filepath ))
2424 header ( 'Content-Type: image/jpeg' );
2425 echo file_get_contents ( $filepath );
2435 // For all other domains, we try to download the image and make a thumbnail.
2436 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2437 if ( strpos ( $httpstatus , '200 OK' )!== false )
2439 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2440 file_put_contents ( $filepath , $data ); // Save image to cache.
2441 if ( resizeImage ( $filepath ))
2443 header ( 'Content-Type: image/jpeg' );
2444 echo file_get_contents ( $filepath );
2451 // Otherwise, return an empty image (8x8 transparent gif)
2452 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2453 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2454 header ( 'Content-Type: image/gif' );
2458 // Make a thumbnail of the image (to width: 120 pixels)
2459 // Returns true if success, false otherwise.
2460 function resizeImage ( $filepath )
2462 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2464 // Trick: some stupid people rename GIF as JPEG... or else.
2465 // So we really try to open each image type whatever the extension is.
2466 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2468 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2469 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2470 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2471 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2474 $ystart = 0 ; $yheight = $h ;
2475 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2476 $nw = 120 ; // Desired width
2477 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2479 $im2 = imagecreatetruecolor ( $nw , $nh );
2480 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2481 imageinterlace ( $im2 , true ); // For progressive JPEG.
2482 $tempname = $filepath . '_TEMP.jpg' ;
2483 imagejpeg ( $im2 , $tempname , 90 );
2487 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2491 // Invalidate caches when the database is changed or the user logs out.
2492 // (eg. tags cache).
2493 function invalidateCaches ()
2495 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2496 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2499 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2500 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2501 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2502 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2503 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2504 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'ws=' )) { processWS (); exit ; } // Webservices (for jQuery/jQueryUI)
2505 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];