]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
b0cd430f0201f58dcf33e732e073ca97f019ca25
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 web space usage.
28 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
29 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
30 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
31 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
32 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
33 // Note: You must have publisher.php in the same directory as Shaarli index.php
34 // -----------------------------------------------------------------------------------------------
35 // You should not touch below (or at your own risks!)
36 // Optional config file.
37 if ( is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' )) require ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' );
39 define ( 'shaarli_version' , '0.0.42 beta' );
40 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in PHP code.
41 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in PHP code.
42 // http://server.com/x/shaarli --> /shaarli/
43 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
45 // Force cookie path (but do not change lifetime)
46 $cookie = session_get_cookie_params ();
47 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
48 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set default cookie expiration and path.
50 // Set session parameters on server side.
51 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
52 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
53 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL).
54 ini_set ( 'session.use_trans_sid' , false ); // Prevent PHP form using sessionID in URL if cookies are disabled.
55 session_name ( 'shaarli' );
56 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
59 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
60 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
61 ini_set ( 'post_max_size' , '16M' );
62 ini_set ( 'upload_max_filesize' , '16M' );
64 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
65 //error_reporting(-1); // See all errors (for debugging only)
67 include "inc/rain.tpl.class.php" ; //include Rain TPL
68 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
69 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
71 ob_start (); // Output buffering for the page cache.
74 // In case stupid admin has left magic_quotes enabled in php.ini:
75 if ( get_magic_quotes_gpc ())
77 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
78 $_POST = array_map ( 'stripslashes_deep' , $_POST );
79 $_GET = array_map ( 'stripslashes_deep' , $_GET );
80 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
83 // Prevent caching on client side or proxy: (yes, it's ugly)
84 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
85 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
86 header ( "Cache-Control: post-check=0, pre-check=0" , false );
87 header ( "Pragma: no-cache" );
89 // Directories creations (Note that your web host may require different rights than 705.)
90 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory (' . realpath ( dirname ( __FILE__
)). ').</pre>' );
92 // Handling of old config file which do not have the new parameters.
93 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( indexUrl ());
94 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
95 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
96 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
97 if ( empty ( $GLOBALS [ 'disablejquery' ])) $GLOBALS [ 'disablejquery' ]= false ;
98 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
99 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
100 // I really need to rewrite Shaarli with a proper configuation manager.
102 // Run config screen if first run:
103 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
105 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
107 // a token depending of deployment salt, user password, and the current ip
108 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
110 autoLocale (); // Sniff browser language and set date format accordingly.
111 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
114 function checkphpversion ()
116 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
118 header ( 'Content-Type: text/plain; charset=utf-8' );
119 echo 'Your server supports PHP ' . PHP_VERSION
. '. Shaarli requires at least php 5.1.0, and thus cannot run. Sorry.' ;
124 // Checks if an update is available for Shaarli.
125 // (at most once a day, and only for registered user.)
126 // Output: '' = no new version.
127 // other= the available version.
128 function checkUpdate ()
130 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
132 // Get latest version number at most once a day.
133 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
135 $version = shaarli_version
;
136 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.txt' , 2 );
137 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = $data ;
138 // If failed, never mind. We don't want to bother the user with that.
139 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
142 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
143 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
148 // -----------------------------------------------------------------------------------------------
149 // Simple cache system (mainly for the RSS/ATOM feeds).
153 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
154 private $shouldBeCached ; // boolean: Should this url be cached?
155 private $filename ; // Name of the cache file for this url.
158 $url = URL (typically the value returned by pageUrl())
159 $shouldBeCached = boolean. If false, the cache will be disabled.
161 public function __construct ( $url , $shouldBeCached )
164 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
165 $this- > shouldBeCached
= $shouldBeCached ;
168 // If the page should be cached and a cached version exists,
169 // returns the cached version (otherwise, return null).
170 public function cachedVersion ()
172 if (! $this- > shouldBeCached
) return null ;
173 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
177 // Put a page in the cache.
178 public function cache ( $page )
180 if (! $this- > shouldBeCached
) return ;
181 file_put_contents ( $this- > filename
, $page );
184 // Purge the whole cache.
185 // (call with pageCache::purgeCache())
186 public static function purgeCache ()
188 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
190 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
191 if ( $handler !== false )
193 while (( $filename = readdir ( $handler ))!== false )
195 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
205 // -----------------------------------------------------------------------------------------------
207 function logm ( $message )
209 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
210 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
213 // Same as nl2br(), but escapes < and >
214 function nl2br_escaped ( $html )
216 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
219 /* Returns the small hash of a string, using RFC 4648 base64url format
220 e.g. smallHash('20111006_131924') --> yZH23w
222 - are unique (well, as unique as crc32, at last)
223 - are always 6 characters long.
224 - only use the following characters: a-z A-Z 0-9 - _ @
225 - are NOT cryptographically secure (they CAN be forged)
226 In Shaarli, they are used as a tinyurl-like link to individual entries.
228 function smallHash ( $text )
230 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
231 return strtr ( $t , '+/' , '-_' );
234 // In a string, converts URLs to clickable links.
235 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
236 function text2clickable ( $url )
238 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
239 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
242 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
243 // even in the absence of <pre> (This is used in description to keep text formatting)
244 function keepMultipleSpaces ( $text )
246 return str_replace ( ' ' , ' ' , $text );
249 // ------------------------------------------------------------------------------------------
250 // Sniff browser language to display dates in the right format automatically.
251 // (Note that is may not work on your server if the corresponding local is not installed.)
252 function autoLocale ()
254 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
255 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
256 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
257 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
259 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
262 // ------------------------------------------------------------------------------------------
263 // PubSubHubbub protocol support (if enabled) [UNTESTED]
264 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
265 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
268 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
270 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
272 indexUrl (). '?do=atom' ,
275 $p- > publish_update ( $topic_url );
279 // ------------------------------------------------------------------------------------------
280 // Session management
282 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
285 $ip = $_SERVER [ "REMOTE_ADDR" ];
286 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
287 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
288 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
292 function fillSessionInfo () {
293 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
294 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
295 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
296 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
299 // Check that user/password is correct.
300 function check_auth ( $login , $password )
302 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
303 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
304 { // Login/password is correct.
306 logm ( 'Login successful' );
309 logm ( 'Login failed for user ' . $login );
313 // Returns true if the user is logged in.
314 function isLoggedIn ()
316 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) return true ;
318 if (! isset ( $GLOBALS [ 'login' ])) return false ; // Shaarli is not configured yet.
320 if (@ $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
)
325 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
326 if ( empty ( $_SESSION [ 'uid' ]) || ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) || time ()>= $_SESSION [ 'expires_on' ])
331 if (! empty ( $_SESSION [ 'longlastingsession' ])) $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
332 else $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
338 function logout () { if ( isset ( $_SESSION
)) { unset ( $_SESSION
[ 'uid' ]); unset ( $_SESSION
[ 'ip' ]); unset ( $_SESSION
[ 'username' ]); unset ( $_SESSION
[ 'privateonly' ]); }
339 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
343 // ------------------------------------------------------------------------------------------
344 // Brute force protection system
345 // Several consecutive failed logins will ban the IP address for 30 minutes.
346 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 ?>" );
347 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
348 // Signal a failed login. Will ban the IP if too many failures:
349 function ban_loginFailed ()
351 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
352 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
353 $gb [ 'FAILURES' ][ $ip ] ++
;
354 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
356 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
357 logm ( 'IP address banned from login' );
359 $GLOBALS [ 'IPBANS' ] = $gb ;
360 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
363 // Signals a successful login. Resets failed login counter.
364 function ban_loginOk ()
366 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
367 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
368 $GLOBALS [ 'IPBANS' ] = $gb ;
369 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
372 // Checks if the user CAN login. If 'true', the user can try to login.
373 function ban_canLogin ()
375 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
376 if ( isset ( $gb [ 'BANS' ][ $ip ]))
378 // User is banned. Check if the ban has expired:
379 if ( $gb [ 'BANS' ][ $ip ]<= time ())
380 { // Ban expired, user can try to login again.
382 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
383 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
384 return true ; // Ban has expired, user can login.
386 return false ; // User is banned.
388 return true ; // User is not banned.
391 // ------------------------------------------------------------------------------------------
392 // Process login form: Check if login/password is correct.
393 if ( isset ( $_POST [ 'login' ]))
395 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
396 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
397 { // Login/password is OK.
399 // If user wants to keep the session cookie even after the browser closes:
400 if (! empty ( $_POST [ 'longlastingsession' ]))
402 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
403 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
404 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
406 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
407 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // Set session cookie expiration on client side
408 // Note: Never forget the trailing slash on the cookie path!
409 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
411 else // Standard session expiration (=when browser closes)
413 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
414 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'HTTP_HOST' ]); // 0 means "When browser closes"
415 session_regenerate_id ( true );
417 // Optional redirect after login:
418 if ( isset ( $_GET [ 'post' ])) { header ( 'Location: ?post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'description' ])? '&description=' . urlencode ( $_GET
[ 'description' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' )); exit ; }
419 if ( isset ( $_POST [ 'returnurl' ]))
421 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
422 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
424 header ( 'Location: ?' ); exit ;
430 if ( isset ( $_GET [ 'post' ])) { $redir
= '&post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'description' ])? '&description=' . urlencode ( $_GET
[ 'description' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' ); }
431 echo '<script language="JavaScript">alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
436 // ------------------------------------------------------------------------------------------
437 // Misc utility functions:
439 // Returns the server URL (including port and http/https), without path.
440 // e.g. "http://myserver.com:8080"
441 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
444 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
445 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
446 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'HTTP_HOST' ]. $serverport ;
449 // Returns the absolute URL of current script, without the query.
450 // (e.g. http://sebsauvage.net/links/)
453 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
454 // If the script is named 'index.php', we remove it (for better looking URLs,
455 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
456 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
457 return serverUrl () . $scriptname ;
460 // Returns the absolute URL of current script, WITH the query.
461 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
464 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
467 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
468 function return_bytes ( $val )
470 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
473 case 'g' : $val *= 1024 ;
474 case 'm' : $val *= 1024 ;
475 case 'k' : $val *= 1024 ;
480 // Try to determine max file size for uploads (POST).
481 // Returns an integer (in bytes)
482 function getMaxFileSize ()
484 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
485 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
486 // Return the smaller of two:
487 $maxsize = min ( $size1 , $size2 );
488 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
492 // Tells if a string start with a substring or not.
493 function startsWith ( $haystack , $needle , $case = true )
495 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
496 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
499 // Tells if a string ends with a substring or not.
500 function endsWith ( $haystack , $needle , $case = true )
502 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
503 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
506 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
507 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
508 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
509 function linkdate2timestamp ( $linkdate )
512 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
513 return mktime ( $h , $m , $s , $M , $D , $Y );
516 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
517 (used to build the pubDate attribute in RSS feed.) */
518 function linkdate2rfc822 ( $linkdate )
520 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
523 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
524 (used to build the updated tags in ATOM feed.) */
525 function linkdate2iso8601 ( $linkdate )
527 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
530 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
531 (used to display link date on screen)
532 The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
533 function linkdate2locale ( $linkdate )
535 return utf8_encode ( strftime ( '%c' , linkdate2timestamp ( $linkdate ))); // %c is for automatic date format according to locale.
536 // Note that if you use a locale which is not installed on your webserver,
537 // the date will not be displayed in the chosen locale, but probably in US notation.
540 // Parse HTTP response headers and return an associative array.
541 function http_parse_headers_shaarli ( $headers )
544 foreach ( $headers as $header )
546 $i = strpos ( $header , ': ' );
549 $key = substr ( $header , 0 , $i );
550 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
558 Input: $url : URL to get (http://...)
559 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
560 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
561 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
563 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
564 if (strpos($httpstatus,'200 OK')!==false)
565 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
567 echo 'There was an error: '.htmlspecialchars($httpstatus)
569 function getHTTP ( $url , $timeout = 30 )
573 $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
574 $context = stream_context_create ( $options );
575 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
576 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
577 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
578 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
579 return array ( $httpStatus , $responseHeaders , $data );
581 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
583 return array ( $e- > getMessage (), '' , '' );
587 // Extract title from an HTML document.
588 // (Returns an empty string if not found.)
589 function html_extract_title ( $html )
591 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
594 // ------------------------------------------------------------------------------------------
595 // Token management for XSRF protection
596 // Token should be used in any form which acts on data (create,update,delete,import...).
597 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
602 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
603 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
607 // Tells if a token is OK. Using this function will destroy the token.
609 function tokenOk ( $token )
611 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
613 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
614 return true ; // Token is OK.
616 return false ; // Wrong token, or already used.
619 // ------------------------------------------------------------------------------------------
620 /* This class is in charge of building the final page.
621 (This is basically a wrapper around RainTPL which pre-fills some fields.)
623 p.assign('myfield','myvalue');
624 p.renderPage('mytemplate');
629 private $tpl ; // RainTPL template
631 function __construct ()
636 private function initialize ()
638 $this- > tpl
= new RainTPL
;
639 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
640 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
641 $searchcrits = '' ; // Search criteria
642 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
643 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
644 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
645 $this- > tpl
-> assign ( 'source' , indexUrl ());
646 $this- > tpl
-> assign ( 'version' , shaarli_version
);
647 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
648 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
649 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
650 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
651 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
652 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
653 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
657 // The following assign() method is basically the same as RainTPL (except that it's lazy)
658 public function assign ( $what , $where )
660 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
661 $this- > tpl
-> assign ( $what , $where );
664 // Render a specific page (using a template).
665 // e.g. pb.renderPage('picwall')
666 public function renderPage ( $page )
668 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
669 $this- > tpl
-> draw ( $page );
673 // ------------------------------------------------------------------------------------------
674 /* Data storage for links.
675 This object behaves like an associative array.
677 $mylinks = new linkdb();
678 echo $mylinks['20110826_161819']['title'];
679 foreach($mylinks as $link)
680 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
683 title : Title of the link
684 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (e.g.'?m-ukcw')
685 description : description of the entry
686 private : Is this link private? 0=no, other value=yes
687 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (e.g.'20110914_192317')
688 tags : tags attached to this entry (separated by spaces)
690 We implement 3 interfaces:
691 - ArrayAccess so that this object behaves like an associative array.
692 - Iterator so that this object can be used in foreach() loops.
693 - Countable interface so that we can do a count() on this object.
695 class linkdb
implements Iterator
, Countable
, ArrayAccess
697 private $links ; // List of links (associative array. Key=linkdate (e.g. "20110823_124546"), value= associative array (keys:title,description...)
698 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
699 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
700 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
701 private $loggedin ; // Is the user logged in? (used to filter private links)
704 function __construct ( $isLoggedIn )
705 // Input : $isLoggedIn : is the user logged in?
707 $this- > loggedin
= $isLoggedIn ;
708 $this- > checkdb (); // Make sure data file exists.
709 $this- > readdb (); // Then read it.
712 // ---- Countable interface implementation
713 public function count () { return count ( $this
-> links
); }
715 // ---- ArrayAccess interface implementation
716 public function offsetSet ( $offset , $value )
718 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
719 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and URL.' );
720 if ( empty ( $offset )) die ( 'You must specify a key.' );
721 $this- > links
[ $offset ] = $value ;
722 $this- > urls
[ $value [ 'url' ]]= $offset ;
724 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
725 public function offsetUnset ( $offset )
727 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
728 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
729 unset ( $this- > links
[ $offset ]);
731 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
733 // ---- Iterator interface implementation
734 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
735 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
736 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
737 function next () { ++$this
-> position
; } // go to next item
738 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
741 private function checkdb () // Check if db directory and file exists.
743 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
745 $this- > links
= array ();
746 $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' );
747 $this- > links
[ $link [ 'linkdate' ]] = $link ;
748 $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' );
749 $this- > links
[ $link [ 'linkdate' ]] = $link ;
750 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
754 // Read database from disk to memory
755 private function readdb ()
758 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
759 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
761 // If user is not logged in, filter private links.
762 if (! $this- > loggedin
)
765 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
766 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
769 // Keep the list of the mapping URLs-->linkdate up-to-date.
771 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
774 // Save database from memory to disk.
775 public function savedb ()
777 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
778 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
782 // Returns the link for a given URL (if it exists). False if it does not exist.
783 public function getLinkFromUrl ( $url )
785 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
789 // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links.
790 // e.g. print_r($mydb->filterFulltext('hollandais'));
791 public function filterFulltext ( $searchterms )
793 // FIXME: explode(' ',$searchterms) and perform a AND search.
794 // FIXME: accept double-quotes to search for a string "as is"?
796 $s = strtolower ( $searchterms );
797 foreach ( $this- > links
as $l )
799 $found = ( strpos ( strtolower ( $l [ 'title' ]), $s )!== false )
800 || ( strpos ( strtolower ( $l [ 'description' ]), $s )!== false )
801 || ( strpos ( strtolower ( $l [ 'url' ]), $s )!== false )
802 || ( strpos ( strtolower ( $l [ 'tags' ]), $s )!== false );
803 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
810 // You can specify one or more tags (tags can be separated by space or comma).
811 // e.g. print_r($mydb->filterTags('linux programming'));
812 public function filterTags ( $tags , $casesensitive = false )
814 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : strtolower ( $tags )));
815 $searchtags = explode ( ' ' , $t );
817 foreach ( $this- > links
as $l )
819 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: strtolower ( $l [ 'tags' ])));
820 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
821 $filtered [ $l [ 'linkdate' ]] = $l ;
827 // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125')
828 // Sort order is: older articles first.
829 // e.g. print_r($mydb->filterDay('20120125'));
830 public function filterDay ( $day )
833 foreach ( $this- > links
as $l )
835 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
840 // Filter by smallHash.
841 // Only 1 article is returned.
842 public function filterSmallHash ( $smallHash )
845 foreach ( $this- > links
as $l )
847 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
849 $filtered [ $l [ 'linkdate' ]] = $l ;
856 // Returns the list of all tags
857 // Output: associative array key=tags, value=0
858 public function allTags ()
861 foreach ( $this- > links
as $link )
862 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
863 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
864 arsort ( $tags ); // Sort tags by usage (most used tag first)
868 // Returns the list of days containing articles (oldest first)
869 // Output: An array containing days (in format YYYYMMDD).
870 public function days ()
873 foreach ( array_keys ( $this- > links
) as $day )
875 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
877 $linkdays = array_keys ( $linkdays );
883 // ------------------------------------------------------------------------------------------
884 // Output the last N links in RSS 2.0 format.
887 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
889 // $usepermalink : If true, use permalink instead of final link.
890 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
891 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
894 $query = $_SERVER [ "QUERY_STRING" ];
895 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
896 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
898 // If cached was not found (or not usable), then read the database and build the response:
899 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if user it not logged in).
901 // Optionally filter the results:
902 $linksToDisplay = array ();
903 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
904 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
905 else $linksToDisplay = $LINKSDB ;
906 $nblinksToDisplay = 50 ; // Number of links to display.
907 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
909 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
912 $pageaddr = htmlspecialchars ( indexUrl ());
913 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
914 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
915 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
916 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
918 echo '<!-- PubSubHubbub Discovery -->' ;
919 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
920 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
921 echo '<!-- End Of PubSubHubbub Discovery -->' ;
924 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
925 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
927 $link = $linksToDisplay [ $keys [ $i ]];
928 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
929 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
930 $absurl = htmlspecialchars ( $link [ 'url' ]);
931 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
932 if ( $usepermalinks === true )
933 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $guid . '</link>' ;
935 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
936 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
937 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
939 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
942 // Add permalink in description
943 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
944 // If user wants permalinks first, put the final link in description
945 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
946 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
947 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
950 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
952 $cache- > cache ( ob_get_contents ());
957 // ------------------------------------------------------------------------------------------
958 // Output the last N links in ATOM format.
961 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
963 // $usepermalink : If true, use permalink instead of final link.
964 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
965 $usepermalinks = isset ( $_GET [ 'permalinks' ]);
968 $query = $_SERVER [ "QUERY_STRING" ];
969 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
970 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
971 // If cached was not found (or not usable), then read the database and build the response:
973 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
976 // Optionally filter the results:
977 $linksToDisplay = array ();
978 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
979 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
980 else $linksToDisplay = $LINKSDB ;
981 $nblinksToDisplay = 50 ; // Number of links to display.
982 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
984 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
987 $pageaddr = htmlspecialchars ( indexUrl ());
991 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
992 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
994 $link = $linksToDisplay [ $keys [ $i ]];
995 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
996 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
997 $latestDate = max ( $latestDate , $iso8601date );
998 $absurl = htmlspecialchars ( $link [ 'url' ]);
999 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1000 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1001 if ( $usepermalinks === true )
1002 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1004 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1005 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1007 // Add permalink in description
1008 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1009 // If user wants permalinks first, put the final link in description
1010 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1011 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1013 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1014 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1016 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1017 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1019 $entries .= "</entry> \n " ;
1022 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1023 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1024 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1025 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1026 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1028 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1029 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1030 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1032 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1033 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1035 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1038 $cache- > cache ( ob_get_contents ());
1043 // ------------------------------------------------------------------------------------------
1044 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1045 // Gives the last 7 days (which have links).
1046 // This RSS feed cannot be filtered.
1047 function showDailyRSS ()
1050 $query = $_SERVER [ "QUERY_STRING" ];
1051 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1052 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1053 // If cached was not found (or not usable), then read the database and build the response:
1054 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1056 /* Some Shaarlies may have very few links, so we need to look
1057 back in time (rsort()) until we have enough days ($nb_of_days).
1059 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1061 $nb_of_days = 7 ; // We take 7 days.
1064 foreach ( $linkdates as $linkdate )
1066 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1067 if ( strcmp ( $day , $today )< 0 )
1069 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1070 $days [ $day ][]= $linkdate ;
1072 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days?
1075 // Build the RSS feed.
1076 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1077 $pageaddr = htmlspecialchars ( indexUrl ());
1078 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1079 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1080 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1082 foreach ( $days as $day => $linkdates ) // For each day.
1084 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1085 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1086 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1087 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1088 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1090 // Build the HTML body of this RSS entry.
1094 // We pre-format some fields for proper output.
1095 foreach ( $linkdates as $linkdate )
1097 $l = $LINKSDB [ $linkdate ];
1098 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1099 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1100 $l [ 'localdate' ]= linkdate2locale ( $l [ 'linkdate' ]);
1101 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1102 $links [ $linkdate ]= $l ;
1104 // Then build the HTML for this day:
1106 $tpl- > assign ( 'links' , $links );
1107 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1109 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1112 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1114 $cache- > cache ( ob_get_contents ());
1120 function showDaily ()
1122 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1125 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1126 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1128 $days = $LINKSDB- > days ();
1129 $i = array_search ( $day , $days );
1130 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1135 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1136 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1139 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1140 // We pre-format some fields for proper output.
1141 foreach ( $linksToDisplay as $key => $link )
1143 $taglist = explode ( ' ' , $link [ 'tags' ]);
1144 uasort ( $taglist , 'strcasecmp' );
1145 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1146 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1147 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1150 /* We need to spread the articles on 3 columns.
1151 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1152 so I manually spread entries with a simple method: I roughly evaluate the
1153 height of a div according to title and description length.
1155 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1156 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1157 foreach ( $linksToDisplay as $key => $link )
1159 // Roughly estimate length of entry (by counting characters)
1160 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1161 // Description: 836 characters gives roughly 342 pixel height.
1162 // This is not perfect, but it's usually OK.
1163 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1164 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1165 // Then put in column which is the less filled:
1166 $smallest = min ( $fill ); // find smallest value in array.
1167 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1168 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1169 $fill [ $index ] +
= $length ;
1171 $PAGE = new pageBuilder
;
1172 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1173 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1174 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1175 $PAGE- > assign ( 'col1' , $columns [ 0 ]);
1176 $PAGE- > assign ( 'col2' , $columns [ 1 ]);
1177 $PAGE- > assign ( 'col3' , $columns [ 2 ]);
1178 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1179 $PAGE- > assign ( 'previousday' , $previousday );
1180 $PAGE- > assign ( 'nextday' , $nextday );
1181 $PAGE- > renderPage ( 'daily' );
1186 // ------------------------------------------------------------------------------------------
1187 // Render HTML page (according to URL parameters and user rights)
1188 function renderPage ()
1190 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1192 // -------- Display login form.
1193 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1195 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1196 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1197 $PAGE = new pageBuilder
;
1198 $PAGE- > assign ( 'token' , $token );
1199 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1200 $PAGE- > renderPage ( 'loginform' );
1203 // -------- User wants to logout.
1204 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1208 header ( 'Location: ?' );
1212 // -------- Picture wall
1213 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1215 // Optionally filter the results:
1217 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1218 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1219 else $links = $LINKSDB ;
1221 $linksToDisplay = array ();
1223 // Get only links which have a thumbnail.
1224 foreach ( $links as $link )
1226 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1227 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1228 if ( $thumb != '' ) // Only output links which have a thumbnail.
1230 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1231 $link [ 'permalink' ]= $permalink ;
1232 $linksToDisplay []= $link ; // Add to array.
1235 $PAGE = new pageBuilder
;
1236 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1237 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1238 $PAGE- > renderPage ( 'picwall' );
1242 // -------- Tag cloud
1243 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1245 $tags = $LINKSDB- > allTags ();
1246 // We sort tags alphabetically, then choose a font size according to count.
1247 // First, find max value.
1248 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1251 foreach ( $tags as $key => $value )
1253 $tagList [ $key ] = array ( 'count' => $value , 'size' => max ( 40 * $value / $maxcount , 8 ));
1255 $PAGE = new pageBuilder
;
1256 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1257 $PAGE- > assign ( 'tags' , $tagList );
1258 $PAGE- > renderPage ( 'tagcloud' );
1262 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1263 if ( isset ( $_GET [ 'addtag' ]))
1265 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1266 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1267 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1268 $params [ 'searchtags' ] = ( empty ( $params [ 'searchtags' ]) ? trim ( $_GET [ 'addtag' ]) : trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]));
1269 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1270 header ( 'Location: ?' . http_build_query ( $params ));
1274 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1275 if ( isset ( $_GET [ 'removetag' ]))
1277 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1278 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1279 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1280 if ( isset ( $params [ 'searchtags' ]))
1282 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1283 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1284 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1285 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1287 header ( 'Location: ?' . http_build_query ( $params ));
1291 // -------- User wants to change the number of links per page (linksperpage=...)
1292 if ( isset ( $_GET [ 'linksperpage' ]))
1294 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1295 // Make sure the referrer is Shaarli itself.
1297 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1298 $referer = $_SERVER [ 'HTTP_REFERER' ];
1299 header ( 'Location: ' . $referer );
1303 // -------- User wants to see only private links (toggle)
1304 if ( isset ( $_GET [ 'privateonly' ]))
1306 if ( empty ( $_SESSION [ 'privateonly' ]))
1308 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1312 unset ( $_SESSION [ 'privateonly' ]); // See all links
1314 // Make sure the referrer is Shaarli itself.
1316 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1317 $referer = $_SERVER [ 'HTTP_REFERER' ];
1318 header ( 'Location: ' . $referer );
1322 // -------- Handle other actions allowed for non-logged in users:
1325 // User tries to post new link but is not logged in:
1326 // Show login screen, then redirect to ?post=...
1327 if ( isset ( $_GET [ 'post' ]))
1329 header ( 'Location: ?do=login&post=' . urlencode ( $_GET [ 'post' ]).(! empty ( $_GET [ 'title' ])? '&title=' . urlencode ( $_GET [ 'title' ]): '' ).(! empty ( $_GET [ 'description' ])? '&description=' . urlencode ( $_GET [ 'description' ]): '' ).(! empty ( $_GET [ 'source' ])? '&source=' . urlencode ( $_GET [ 'source' ]): '' )); // Redirect to login page, then back to post link.
1332 $PAGE = new pageBuilder
;
1333 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1334 $PAGE- > renderPage ( 'linklist' );
1335 exit ; // Never remove this one! All operations below are reserved for logged in user.
1338 // -------- All other functions are reserved for the registered user:
1340 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1341 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1343 $PAGE = new pageBuilder
;
1344 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1345 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1346 $PAGE- > renderPage ( 'tools' );
1350 // -------- User wants to change his/her password.
1351 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1353 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1354 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1356 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1358 // Make sure old password is correct.
1359 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1360 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1361 // Save new password
1362 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1363 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1365 echo '<script language="JavaScript">alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1368 else // show the change password form.
1370 $PAGE = new pageBuilder
;
1371 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1372 $PAGE- > assign ( 'token' , getToken ());
1373 $PAGE- > renderPage ( 'changepassword' );
1378 // -------- User wants to change configuration
1379 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1381 if (! empty ( $_POST [ 'title' ]) )
1383 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1385 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1386 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1387 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1388 $GLOBALS [ 'timezone' ] = $tz ;
1389 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1390 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1391 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1392 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1393 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1394 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1396 echo '<script language="JavaScript">alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1399 else // Show the configuration form.
1401 $PAGE = new pageBuilder
;
1402 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1403 $PAGE- > assign ( 'token' , getToken ());
1404 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1405 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1406 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1407 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1408 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1409 $PAGE- > renderPage ( 'configure' );
1414 // -------- User wants to rename a tag or delete it
1415 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1417 if ( empty ( $_POST [ 'fromtag' ]))
1419 $PAGE = new pageBuilder
;
1420 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1421 $PAGE- > assign ( 'token' , getToken ());
1422 $PAGE- > renderPage ( 'changetag' );
1425 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1428 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1430 $needle = trim ( $_POST [ 'fromtag' ]);
1431 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1432 foreach ( $linksToAlter as $key => $value )
1434 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1435 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1436 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1437 $LINKSDB [ $key ]= $value ;
1439 $LINKSDB- > savedb (); // Save to disk.
1440 echo '<script language="JavaScript">alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1445 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1447 $needle = trim ( $_POST [ 'fromtag' ]);
1448 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1449 foreach ( $linksToAlter as $key => $value )
1451 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1452 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1453 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1454 $LINKSDB [ $key ]= $value ;
1456 $LINKSDB- > savedb (); // Save to disk.
1457 echo '<script language="JavaScript">alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1462 // -------- User wants to add a link without using the bookmarklet: Show form.
1463 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1465 $PAGE = new pageBuilder
;
1466 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1467 $PAGE- > renderPage ( 'addlink' );
1471 // -------- User clicked the "Save" button when editing a link: Save link to database.
1472 if ( isset ( $_POST [ 'save_edit' ]))
1474 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1475 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1476 $linkdate = $_POST [ 'lf_linkdate' ];
1477 $url = trim ( $_POST [ 'lf_url' ]);
1478 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ))
1479 $url = 'http://' . $url ;
1480 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1481 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1482 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1483 $LINKSDB [ $linkdate ] = $link ;
1484 $LINKSDB- > savedb (); // Save to disk.
1487 // If we are called from the bookmarklet, we must close the popup:
1488 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1489 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1490 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1491 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1495 // -------- User clicked the "Cancel" button when editing a link.
1496 if ( isset ( $_POST [ 'cancel_edit' ]))
1498 // If we are called from the bookmarklet, we must close the popup:
1499 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1500 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1501 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1502 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1506 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1507 if ( isset ( $_POST [ 'delete_link' ]))
1509 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1510 // We do not need to ask for confirmation:
1511 // - confirmation is handled by JavaScript
1512 // - we are protected from XSRF by the token.
1513 $linkdate = $_POST [ 'lf_linkdate' ];
1514 unset ( $LINKSDB [ $linkdate ]);
1515 $LINKSDB- > savedb (); // save to disk
1517 // If we are called from the bookmarklet, we must close the popup:
1518 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
1519 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1520 if ( $returnurl == '?' ) { $returnurl
= ( isset ( $_SERVER
[ 'HTTP_REFERER' ]) ? $_SERVER
[ 'HTTP_REFERER' ] : '?' ); }
1521 header ( 'Location: ' . $returnurl ); // After deleting the link, redirect to the page the user was on.
1525 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1526 if ( isset ( $_GET [ 'edit_link' ]))
1528 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1529 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1530 $PAGE = new pageBuilder
;
1531 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1532 $PAGE- > assign ( 'link' , $link );
1533 $PAGE- > assign ( 'link_is_new' , false );
1534 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1535 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1536 $PAGE- > renderPage ( 'editlink' );
1540 // -------- User want to post a new link: Display link edit form.
1541 if ( isset ( $_GET [ 'post' ]))
1545 // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
1546 $i = strpos ( $url , '&utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1547 $i = strpos ( $url , '?utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1548 $i = strpos ( $url , '#xtor=RSS-' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1550 $link_is_new = false ;
1551 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1554 $link_is_new = true ; // This is a new link
1555 $linkdate = strval ( date ( 'Ymd_His' ));
1556 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1557 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1558 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1559 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1560 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1561 // If this is an HTTP link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
1562 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1564 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1565 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1566 if ( strpos ( $status , '200 OK' )!== false )
1568 // Look for charset in html header.
1569 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1571 // If found, extract encoding.
1572 if (! empty ( $meta [ 0 ]))
1574 // Get encoding specified in header.
1575 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1576 // If charset not found, use utf-8.
1577 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1579 else { $html_charset
= 'utf-8' ; }
1582 $title = html_extract_title ( $data );
1585 // Re-encode title in utf-8 if necessary.
1586 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1590 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1592 $url = '?' . smallHash ( $linkdate );
1595 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1598 $PAGE = new pageBuilder
;
1599 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1600 $PAGE- > assign ( 'link' , $link );
1601 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1602 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1603 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1604 $PAGE- > renderPage ( 'editlink' );
1608 // -------- Export as Netscape Bookmarks HTML file.
1609 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1611 if ( empty ( $_GET [ 'what' ]))
1613 $PAGE = new pageBuilder
;
1614 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1615 $PAGE- > renderPage ( 'export' );
1618 $exportWhat = $_GET [ 'what' ];
1619 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1621 header ( 'Content-Type: text/html; charset=utf-8' );
1622 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1623 $currentdate = date ( 'Y/m/d H:i:s' );
1625 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1626 <!-- This is an automatically generated file.
1627 It will be read and overwritten.
1629 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1630 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1631 <TITLE>Bookmarks</TITLE>
1634 foreach ( $LINKSDB as $link )
1636 if ( $exportWhat == 'all' ||
1637 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1638 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1640 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1641 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1642 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1643 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1649 // -------- User is uploading a file for import
1650 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1652 // If file is too big, some form field may be missing.
1653 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1655 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1656 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>' ;
1659 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1664 // -------- Show upload/import dialog:
1665 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1667 $PAGE = new pageBuilder
;
1668 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1669 $PAGE- > assign ( 'token' , getToken ());
1670 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1671 $PAGE- > renderPage ( 'import' );
1675 // -------- Otherwise, simply display search form and links:
1676 $PAGE = new pageBuilder
;
1677 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1678 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1679 $PAGE- > renderPage ( 'linklist' );
1683 // -----------------------------------------------------------------------------------------------
1684 // Process the import file form.
1685 function importFile ()
1687 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1688 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1689 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1690 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1691 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1692 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1693 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1698 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1700 // Then import the bookmarks.
1701 if ( $type == 'netscape' )
1703 // This is a standard Netscape-style bookmark file.
1704 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1705 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1707 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1708 $d = explode ( '<DD>' , $html );
1709 if ( startswith ( $d [ 0 ], '<A ' ))
1711 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1712 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1713 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1714 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1716 foreach ( $matches as $m )
1718 $attr = $m [ 1 ]; $value = $m [ 2 ];
1719 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1720 elseif ( $attr == 'ADD_DATE' )
1722 $raw_add_date = intval ( $value );
1723 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1725 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1726 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1728 if ( $link [ 'url' ]!= '' )
1730 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1731 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1733 { // Link not in database, let's import it...
1734 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1736 // Make sure date/time is not already used by another link.
1737 // (Some bookmark files have several different links with the same ADD_DATE)
1738 // We increment date by 1 second until we find a date which is not used in DB.
1739 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1740 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1741 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1742 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1745 else // Link already present in database.
1748 { // If overwrite is required, we import link data, except date/time.
1749 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1750 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1760 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1764 echo '<script language="JavaScript">alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1768 // -----------------------------------------------------------------------------------------------
1769 // Template for the list of links (<div id="linklist">)
1770 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1771 function buildLinkList ( $PAGE , $LINKSDB )
1773 // ---- Filter link database according to parameters
1774 $linksToDisplay = array ();
1777 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1779 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1780 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1781 $search_type = 'fulltext' ;
1783 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1785 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1786 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1787 $search_type = 'tags' ;
1789 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1791 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1792 if ( count ( $linksToDisplay )== 0 )
1794 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1795 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1796 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1799 $search_type = 'permalink' ;
1802 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1804 // Option: Show only private links
1805 if (! empty ( $_SESSION [ 'privateonly' ]))
1808 foreach ( $linksToDisplay as $linkdate => $link )
1810 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1812 $linksToDisplay = $tmp ;
1815 // ---- Handle paging.
1816 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1817 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1818 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1820 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1822 // If there is only a single link, we change on-the-fly the title of the page.
1823 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1825 // Select articles according to paging.
1826 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1827 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1828 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1829 $page = ( $page < 1 ? 1 : $page );
1830 $page = ( $page > $pagecount ? $pagecount : $page );
1831 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1832 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1833 $linkDisp = array (); // Links to display
1834 while ( $i < $end && $i < count ( $keys ))
1836 $link = $linksToDisplay [ $keys [ $i ]];
1837 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1838 $title = $link [ 'title' ];
1839 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1840 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1841 $link [ 'localdate' ]= linkdate2locale ( $link [ 'linkdate' ]);
1842 $taglist = explode ( ' ' , $link [ 'tags' ]);
1843 uasort ( $taglist , 'strcasecmp' );
1844 $link [ 'taglist' ]= $taglist ;
1845 $linkDisp [ $keys [ $i ]] = $link ;
1849 // Compute paging navigation
1850 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1851 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1853 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1854 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1856 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1858 // Fill all template fields.
1859 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1860 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1861 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1862 $PAGE- > assign ( 'page_current' , $page );
1863 $PAGE- > assign ( 'page_max' , $pagecount );
1864 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1865 $PAGE- > assign ( 'search_type' , $search_type );
1866 $PAGE- > assign ( 'search_crits' , $search_crits );
1867 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1868 $PAGE- > assign ( 'token' , $token );
1869 $PAGE- > assign ( 'links' , $linkDisp );
1873 // Compute the thumbnail for a link.
1875 // With a link to the original URL.
1876 // Understands various services (youtube.com...)
1877 // Input: $url = URL for which the thumbnail must be found.
1878 // $href = if provided, this URL will be followed instead of $url
1879 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1880 // Some of them may be missing.
1881 // Return an empty array if no thumbnail available.
1882 function computeThumbnail ( $url , $href = false )
1884 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1885 if ( $href == false ) $href = $url ;
1887 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1888 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1889 // ^^^^^^^^^^^ ^^^^^^^^^^^
1890 $domain = parse_url ( $url , PHP_URL_HOST
);
1891 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1893 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1894 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1895 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1897 if ( $domain == 'youtu.be' ) // Youtube short links
1899 $path = parse_url ( $url , PHP_URL_PATH
);
1900 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1901 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1903 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1905 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1906 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1907 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1910 if ( $domain == 'imgur.com' )
1912 $path = parse_url ( $url , PHP_URL_PATH
);
1913 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1914 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1915 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1916 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1917 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1919 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1920 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1922 if ( $domain == 'i.imgur.com' )
1924 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1925 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1926 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1928 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1930 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1932 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1933 return array ( 'src' => $thumburl ,
1934 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1937 if ( endsWith ( $domain , '.imageshack.us' ))
1939 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1940 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1942 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1943 return array ( 'src' => $thumburl ,
1944 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1948 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1949 // So we deport the thumbnail generation in order not to slow down page generation
1950 // (and we also cache the thumbnail)
1952 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1954 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1955 || $domain == 'vimeo.com'
1956 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1957 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1960 if ( $domain == 'vimeo.com' )
1961 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1962 $path = parse_url ( $url , PHP_URL_PATH
);
1963 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1965 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1966 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1967 $path = parse_url ( $url , PHP_URL_PATH
);
1968 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1970 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1971 { // Make sure this TED URL points to a video (/talks/...)
1972 $path = parse_url ( $url , PHP_URL_PATH
);
1973 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1975 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1976 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1977 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1980 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1981 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1982 // But using the extension will do.
1983 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1984 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1986 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1987 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
1988 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1990 return array (); // No thumbnail.
1995 // Returns the HTML code to display a thumbnail for a link
1996 // with a link to the original URL.
1997 // Understands various services (youtube.com...)
1998 // Input: $url = URL for which the thumbnail must be found.
1999 // $href = if provided, this URL will be followed instead of $url
2000 // Returns '' if no thumbnail available.
2001 function thumbnail ( $url , $href = false )
2003 $t = computeThumbnail ( $url , $href );
2004 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2006 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2007 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2008 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2009 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2010 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2016 // Returns the HTML code to display a thumbnail for a link
2017 // for the picture wall (using lazy image loading)
2018 // Understands various services (youtube.com...)
2019 // Input: $url = URL for which the thumbnail must be found.
2020 // $href = if provided, this URL will be followed instead of $url
2021 // Returns '' if no thumbnail available.
2022 function lazyThumbnail ( $url , $href = false )
2024 $t = computeThumbnail ( $url , $href );
2025 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2027 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2029 // Lazy image (only loaded by JavaScript when in the viewport).
2030 if (! empty ( $GLOBALS [ 'disablejquery' ])) // (except if jQuery is disabled)
2031 $html .= '<img class="lazyimage" src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2033 $html .= '<img class="lazyimage" src="#" data-original="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2035 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2036 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2037 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2038 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2041 // No-JavaScript fallback.
2042 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2043 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2044 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2045 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2046 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2047 $html .= '></noscript></a>' ;
2053 // -----------------------------------------------------------------------------------------------
2055 // This function should NEVER be called if the file data/config.php exists.
2058 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2059 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2062 // This part makes sure sessions works correctly.
2063 // (Because on some hosts, session.save_path may not be set correctly,
2064 // or we may not have write access to it.)
2065 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2066 { // Step 2: Check if data in session is correct.
2067 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2068 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2069 echo 'It currently points to ' . session_save_path (). '<br><br><a href="?">Click to try again.</a></pre>' ;
2072 if (! isset ( $_SESSION [ 'session_tested' ]))
2073 { // Step 1 : Try to store data in session and reload page.
2074 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2075 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2077 if ( isset ( $_GET [ 'test_session' ]))
2078 { // Step 3: Sessions are OK. Remove test parameter from URL.
2079 header ( 'Location: ' . indexUrl ());
2083 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2086 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2087 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2088 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2089 $GLOBALS [ 'timezone' ] = $tz ;
2090 // Everything is ok, let's create config file.
2091 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2092 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2093 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2094 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2096 echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2100 // Display config form:
2101 list ( $timezone_form , $timezone_js ) = templateTZform ();
2102 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td valign="top"><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2104 $PAGE = new pageBuilder
;
2105 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2106 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2107 $PAGE- > renderPage ( 'install' );
2111 // Generates the timezone selection form and JavaScript.
2112 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2113 // Output: array(html,js)
2114 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2115 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2116 function templateTZform ( $ptz = false )
2118 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2120 // Try to split the provided timezone.
2121 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2122 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2124 // Display config form:
2125 $timezone_form = '' ;
2127 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2128 // We split the list in continents/cities.
2129 $continents = array ();
2131 foreach ( timezone_identifiers_list () as $tz )
2133 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2134 $spos = strpos ( $tz , '/' );
2137 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2138 $continents [ $continent ]= 1 ;
2139 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2140 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? 'selected' : '' ). '>' . $city . '</option>' ;
2143 $continents_html = '' ;
2144 $continents = array_keys ( $continents );
2145 foreach ( $continents as $continent )
2146 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? 'selected' : '' ). '>' . $continent . '</option>' ;
2147 $cities_html = $cities [ $pcontinent ];
2148 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2149 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2150 $timezone_js = "<script language= \" JavaScript \" >" ;
2151 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2152 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2153 $timezone_js .= "</script>" ;
2154 return array ( $timezone_form , $timezone_js );
2156 return array ( '' , '' );
2159 // Tells if a timezone is valid or not.
2160 // If not valid, returns false.
2161 // If system does not support timezone list, returns false.
2162 function isTZvalid ( $continent , $city )
2164 $tz = $continent . '/' . $city ;
2165 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2167 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2172 if (! function_exists ( 'json_encode' )) {
2173 function json_encode ( $data ) {
2174 switch ( $type = gettype ( $data )) {
2178 return ( $data ? 'true' : 'false' );
2184 return '"' . addslashes ( $data ) . '"' ;
2186 $data = get_object_vars ( $data );
2188 $output_index_count = 0 ;
2189 $output_indexed = array ();
2190 $output_associative = array ();
2191 foreach ( $data as $key => $value ) {
2192 $output_indexed [] = json_encode ( $value );
2193 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2194 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2195 $output_index_count = NULL ;
2198 if ( $output_index_count !== NULL ) {
2199 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2201 return ' {' . implode(',', $output_associative) . '} ' ;
2204 return '' ; // Not supported
2209 // Webservices (for use with jQuery/jQueryUI)
2210 // e.g. index.php?ws=tags&term=minecr
2211 function processWS ()
2213 if ( empty ( $_GET [ 'ws' ]) || empty ( $_GET [ 'term' ])) return ;
2214 $term = $_GET [ 'term' ];
2215 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
2216 header ( 'Content-Type: application/json; charset=utf-8' );
2218 // Search in tags (case insensitive, cumulative search)
2219 if ( $_GET [ 'ws' ]== 'tags' )
2221 $tags = explode ( ' ' , str_replace ( ',' , ' ' , $term )); $last = array_pop ( $tags ); // Get the last term ("a b c d" ==> "a b c", "d")
2222 $addtags = '' ; if ( $tags ) $addtags = implode ( ' ' , $tags ). ' ' ; // We will pre-pend previous tags
2224 /* To speed up things, we store list of tags in session */
2225 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2226 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2228 if ( startsWith ( $key , $last , $case = false ) && ! in_array ( $key , $tags )) $suggested [ $addtags . $key . ' ' ]= 0 ;
2230 echo json_encode ( array_keys ( $suggested ));
2234 // Search a single tag (case sensitive, single tag search)
2235 if ( $_GET [ 'ws' ]== 'singletag' )
2237 /* To speed up things, we store list of tags in session */
2238 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2239 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2241 if ( startsWith ( $key , $term , $case = true )) $suggested [ $key ]= 0 ;
2243 echo json_encode ( array_keys ( $suggested ));
2248 // Re-write configuration file according to globals.
2249 // Requires some $GLOBALS to be set (login,hash,salt,title).
2250 // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu.
2251 // (otherwise, the function simply returns.)
2252 function writeConfig ()
2254 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2255 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2256 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2257 $config .= ' $GLOBALS [ \' titleLink \' ]=' . var_export ( $GLOBALS [ 'titleLink' ], true ). '; ' ;
2258 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2259 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2260 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2261 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2263 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2265 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>' ;
2270 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2271 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2272 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2273 This function is called by passing the URL:
2274 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2275 [URL] is the URL of the link (e.g. a flickr page)
2276 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2277 The function below will fetch the image from the webservice and store it in the cache.
2279 function genThumbnail ()
2281 // Make sure the parameters in the URL were generated by us.
2282 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2283 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2285 // Let's see if we don't already have the image for this URL in the cache.
2286 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2287 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2288 { // We have the thumbnail, just serve it:
2289 header ( 'Content-Type: image/jpeg' );
2290 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2293 // We may also serve a blank image (if service did not respond)
2294 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2295 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2297 header ( 'Content-Type: image/gif' );
2298 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2302 // Otherwise, generate the thumbnail.
2303 $url = $_GET [ 'url' ];
2304 $domain = parse_url ( $url , PHP_URL_HOST
);
2306 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2308 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2309 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2311 // Is this a link to an image, or to a flickr page ?
2313 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2314 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2315 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2316 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2318 else // This is a flickr page (html)
2320 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2321 if ( strpos ( $httpstatus , '200 OK' )!== false )
2323 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2324 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2325 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2327 // In albums (and some other pages), the link rel="image_src" is not provided,
2328 // but flickr provides:
2329 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2332 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2333 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2339 { // Let's download the image.
2340 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2341 if ( strpos ( $httpstatus , '200 OK' )!== false )
2343 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2344 header ( 'Content-Type: image/jpeg' );
2351 elseif ( $domain == 'vimeo.com' )
2353 // This is more complex: we have to perform a HTTP request, then parse the result.
2354 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2355 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2356 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2357 if ( strpos ( $httpstatus , '200 OK' )!== false )
2359 $t = unserialize ( $data );
2360 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2361 // Then we download the image and serve it to our client.
2362 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2363 if ( strpos ( $httpstatus , '200 OK' )!== false )
2365 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2366 header ( 'Content-Type: image/jpeg' );
2373 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2375 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2376 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2377 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2378 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2379 if ( strpos ( $httpstatus , '200 OK' )!== false )
2381 // Extract the link to the thumbnail
2382 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2383 if (! empty ( $matches [ 1 ]))
2384 { // Let's download the image.
2385 $imageurl = $matches [ 1 ];
2386 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2387 if ( strpos ( $httpstatus , '200 OK' )!== false )
2389 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2390 file_put_contents ( $filepath , $data ); // Save image to cache.
2391 if ( resizeImage ( $filepath ))
2393 header ( 'Content-Type: image/jpeg' );
2394 echo file_get_contents ( $filepath );
2402 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2404 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2405 // http://xkcd.com/327/
2406 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2407 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2408 if ( strpos ( $httpstatus , '200 OK' )!== false )
2410 // Extract the link to the thumbnail
2411 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2412 if (! empty ( $matches [ 1 ]))
2413 { // Let's download the image.
2414 $imageurl = $matches [ 1 ];
2415 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2416 if ( strpos ( $httpstatus , '200 OK' )!== false )
2418 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2419 file_put_contents ( $filepath , $data ); // Save image to cache.
2420 if ( resizeImage ( $filepath ))
2422 header ( 'Content-Type: image/jpeg' );
2423 echo file_get_contents ( $filepath );
2433 // For all other domains, we try to download the image and make a thumbnail.
2434 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2435 if ( strpos ( $httpstatus , '200 OK' )!== false )
2437 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2438 file_put_contents ( $filepath , $data ); // Save image to cache.
2439 if ( resizeImage ( $filepath ))
2441 header ( 'Content-Type: image/jpeg' );
2442 echo file_get_contents ( $filepath );
2449 // Otherwise, return an empty image (8x8 transparent gif)
2450 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2451 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2452 header ( 'Content-Type: image/gif' );
2456 // Make a thumbnail of the image (to width: 120 pixels)
2457 // Returns true if success, false otherwise.
2458 function resizeImage ( $filepath )
2460 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2462 // Trick: some stupid people rename GIF as JPEG... or else.
2463 // So we really try to open each image type whatever the extension is.
2464 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2466 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2467 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2468 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2469 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2472 $ystart = 0 ; $yheight = $h ;
2473 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2474 $nw = 120 ; // Desired width
2475 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2477 $im2 = imagecreatetruecolor ( $nw , $nh );
2478 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2479 imageinterlace ( $im2 , true ); // For progressive JPEG.
2480 $tempname = $filepath . '_TEMP.jpg' ;
2481 imagejpeg ( $im2 , $tempname , 90 );
2485 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2489 // Invalidate caches when the database is changed or the user logs out.
2490 // (e.g. tags cache).
2491 function invalidateCaches ()
2493 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2494 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2497 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2498 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2499 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2500 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2501 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2502 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'ws=' )) { processWS (); exit ; } // Webservices (for jQuery/jQueryUI)
2503 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];