]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
2 // Shaarli 0.0.42 beta - Shaare your links...
3 // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net
4 // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
5 // Licence: http://www.opensource.org/licenses/zlib-license.php
6 // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x)
7 // -----------------------------------------------------------------------------------------------
8 // NEVER TRUST IN PHP.INI
9 // Some hosts do not define a default timezone in php.ini,
10 // so we have to do this for avoid the strict standard error.
11 date_default_timezone_set ( 'UTC' );
13 // -----------------------------------------------------------------------------------------------
14 // Hardcoded parameter (These parameters can be overwritten by creating the file /data/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' ][ 'SHOW_ATOM' ] = false ; // If true, an extra "ATOM feed" button will be displayed in the toolbar
25 $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ] = true ; // Enable thumbnails in links.
26 $GLOBALS [ 'config' ][ 'CACHEDIR' ] = 'cache' ; // Cache directory for thumbnails for SLOW services (like flickr)
27 $GLOBALS [ 'config' ][ 'PAGECACHE' ] = 'pagecache' ; // Page cache directory.
28 $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ] = true ; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage.
29 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
30 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
31 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
32 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
33 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
34 // Note: You must have publisher.php in the same directory as Shaarli index.php
35 $GLOBALS [ 'config' ][ 'ARCHIVE_ORG' ] = false ; // For each link, add a link to an archived version on archive.org
36 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ] = true ; // Enable RSS permalinks by default. This corresponds to the default behavior of shaarli before this was added as an option.
37 // -----------------------------------------------------------------------------------------------
38 // You should not touch below (or at your own risks!)
39 // Optional config file.
40 if ( is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' )) require ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' );
42 define ( 'shaarli_version' , '0.0.42 beta' );
43 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in PHP code.
44 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in PHP code.
45 // http://server.com/x/shaarli --> /shaarli/
46 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
48 // Force cookie path (but do not change lifetime)
49 $cookie = session_get_cookie_params ();
50 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
51 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set default cookie expiration and path.
53 // Set session parameters on server side.
54 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
55 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
56 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL).
57 ini_set ( 'session.use_trans_sid' , false ); // Prevent PHP form using sessionID in URL if cookies are disabled.
58 session_name ( 'shaarli' );
59 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
62 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
63 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
64 ini_set ( 'post_max_size' , '16M' );
65 ini_set ( 'upload_max_filesize' , '16M' );
67 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
68 //error_reporting(-1); // See all errors (for debugging only)
70 include "inc/rain.tpl.class.php" ; //include Rain TPL
71 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
72 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
74 ob_start (); // Output buffering for the page cache.
77 // In case stupid admin has left magic_quotes enabled in php.ini:
78 if ( get_magic_quotes_gpc ())
80 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
81 $_POST = array_map ( 'stripslashes_deep' , $_POST );
82 $_GET = array_map ( 'stripslashes_deep' , $_GET );
83 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
86 // Prevent caching on client side or proxy: (yes, it's ugly)
87 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
88 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
89 header ( "Cache-Control: post-check=0, pre-check=0" , false );
90 header ( "Pragma: no-cache" );
92 // Directories creations (Note that your web host may require different rights than 705.)
93 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
95 // Handling of old config file which do not have the new parameters.
96 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( indexUrl ());
97 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
98 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
99 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
100 if ( empty ( $GLOBALS [ 'disablejquery' ])) $GLOBALS [ 'disablejquery' ]= false ;
101 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
102 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
103 // I really need to rewrite Shaarli with a proper configuation manager.
105 // Run config screen if first run:
106 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
108 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
110 // a token depending of deployment salt, user password, and the current ip
111 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
113 autoLocale (); // Sniff browser language and set date format accordingly.
114 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
117 function checkphpversion ()
119 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
121 header ( 'Content-Type: text/plain; charset=utf-8' );
122 echo 'Your PHP version is obsolete! Shaarli requires at least php 5.1.0, and thus cannot run. Sorry. Your PHP version has known security vulnerabilities and should be updated as soon as possible.' ;
127 // Checks if an update is available for Shaarli.
128 // (at most once a day, and only for registered user.)
129 // Output: '' = no new version.
130 // other= the available version.
131 function checkUpdate ()
133 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
135 // Get latest version number at most once a day.
136 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
138 $version = shaarli_version
;
139 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.txt' , 2 );
140 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = $data ;
141 // If failed, never mind. We don't want to bother the user with that.
142 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
145 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
146 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
151 // -----------------------------------------------------------------------------------------------
152 // Simple cache system (mainly for the RSS/ATOM feeds).
156 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
157 private $shouldBeCached ; // boolean: Should this url be cached?
158 private $filename ; // Name of the cache file for this url.
161 $url = URL (typically the value returned by pageUrl())
162 $shouldBeCached = boolean. If false, the cache will be disabled.
164 public function __construct ( $url , $shouldBeCached )
167 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
168 $this- > shouldBeCached
= $shouldBeCached ;
171 // If the page should be cached and a cached version exists,
172 // returns the cached version (otherwise, return null).
173 public function cachedVersion ()
175 if (! $this- > shouldBeCached
) return null ;
176 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
180 // Put a page in the cache.
181 public function cache ( $page )
183 if (! $this- > shouldBeCached
) return ;
184 file_put_contents ( $this- > filename
, $page );
187 // Purge the whole cache.
188 // (call with pageCache::purgeCache())
189 public static function purgeCache ()
191 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
193 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
194 if ( $handler !== false )
196 while (( $filename = readdir ( $handler ))!== false )
198 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
208 // -----------------------------------------------------------------------------------------------
210 function logm ( $message )
212 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
213 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
216 // Same as nl2br(), but escapes < and >
217 function nl2br_escaped ( $html )
219 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
222 /* Returns the small hash of a string, using RFC 4648 base64url format
223 e.g. smallHash('20111006_131924') --> yZH23w
225 - are unique (well, as unique as crc32, at last)
226 - are always 6 characters long.
227 - only use the following characters: a-z A-Z 0-9 - _ @
228 - are NOT cryptographically secure (they CAN be forged)
229 In Shaarli, they are used as a tinyurl-like link to individual entries.
231 function smallHash ( $text )
233 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
234 return strtr ( $t , '+/' , '-_' );
237 // In a string, converts URLs to clickable links.
238 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
239 function text2clickable ( $url )
241 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
242 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
245 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
246 // even in the absence of <pre> (This is used in description to keep text formatting)
247 function keepMultipleSpaces ( $text )
249 return str_replace ( ' ' , ' ' , $text );
252 // ------------------------------------------------------------------------------------------
253 // Sniff browser language to display dates in the right format automatically.
254 // (Note that is may not work on your server if the corresponding local is not installed.)
255 function autoLocale ()
257 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
258 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
259 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
260 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
262 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
265 // ------------------------------------------------------------------------------------------
266 // PubSubHubbub protocol support (if enabled) [UNTESTED]
267 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
268 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
271 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
273 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
275 indexUrl (). '?do=atom' ,
278 $p- > publish_update ( $topic_url );
282 // ------------------------------------------------------------------------------------------
283 // Session management
285 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
288 $ip = $_SERVER [ "REMOTE_ADDR" ];
289 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
290 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
291 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
295 function fillSessionInfo () {
296 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
297 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
298 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
299 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
302 // Check that user/password is correct.
303 function check_auth ( $login , $password )
305 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
306 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
307 { // Login/password is correct.
309 logm ( 'Login successful' );
312 logm ( 'Login failed for user ' . $login );
316 // Returns true if the user is logged in.
317 function isLoggedIn ()
319 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) return true ;
321 if (! isset ( $GLOBALS [ 'login' ])) return false ; // Shaarli is not configured yet.
323 if (@ $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
)
328 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
329 if ( empty ( $_SESSION [ 'uid' ]) || ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) || time ()>= $_SESSION [ 'expires_on' ])
334 if (! empty ( $_SESSION [ 'longlastingsession' ])) $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
335 else $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
341 function logout () { if ( isset ( $_SESSION
)) { unset ( $_SESSION
[ 'uid' ]); unset ( $_SESSION
[ 'ip' ]); unset ( $_SESSION
[ 'username' ]); unset ( $_SESSION
[ 'privateonly' ]); }
342 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
346 // ------------------------------------------------------------------------------------------
347 // Brute force protection system
348 // Several consecutive failed logins will ban the IP address for 30 minutes.
349 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 ?>" );
350 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
351 // Signal a failed login. Will ban the IP if too many failures:
352 function ban_loginFailed ()
354 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
355 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
356 $gb [ 'FAILURES' ][ $ip ] ++
;
357 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
359 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
360 logm ( 'IP address banned from login' );
362 $GLOBALS [ 'IPBANS' ] = $gb ;
363 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
366 // Signals a successful login. Resets failed login counter.
367 function ban_loginOk ()
369 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
370 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
371 $GLOBALS [ 'IPBANS' ] = $gb ;
372 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
375 // Checks if the user CAN login. If 'true', the user can try to login.
376 function ban_canLogin ()
378 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
379 if ( isset ( $gb [ 'BANS' ][ $ip ]))
381 // User is banned. Check if the ban has expired:
382 if ( $gb [ 'BANS' ][ $ip ]<= time ())
383 { // Ban expired, user can try to login again.
385 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
386 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
387 return true ; // Ban has expired, user can login.
389 return false ; // User is banned.
391 return true ; // User is not banned.
394 // ------------------------------------------------------------------------------------------
395 // Process login form: Check if login/password is correct.
396 if ( isset ( $_POST [ 'login' ]))
398 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
399 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
400 { // Login/password is OK.
402 // If user wants to keep the session cookie even after the browser closes:
403 if (! empty ( $_POST [ 'longlastingsession' ]))
405 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
406 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
407 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
409 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
410 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
411 // Note: Never forget the trailing slash on the cookie path!
412 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
414 else // Standard session expiration (=when browser closes)
416 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
417 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
418 session_regenerate_id ( true );
420 // Optional redirect after login:
421 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 ; }
422 if ( isset ( $_POST [ 'returnurl' ]))
424 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
425 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
427 header ( 'Location: ?' ); exit ;
433 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' ]): '' ); }
434 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
439 // ------------------------------------------------------------------------------------------
440 // Misc utility functions:
442 // Returns the server URL (including port and http/https), without path.
443 // e.g. "http://myserver.com:8080"
444 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
447 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
448 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
449 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
452 // Returns the absolute URL of current script, without the query.
453 // (e.g. http://sebsauvage.net/links/)
456 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
457 // If the script is named 'index.php', we remove it (for better looking URLs,
458 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
459 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
460 return serverUrl () . $scriptname ;
463 // Returns the absolute URL of current script, WITH the query.
464 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
467 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
470 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
471 function return_bytes ( $val )
473 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
476 case 'g' : $val *= 1024 ;
477 case 'm' : $val *= 1024 ;
478 case 'k' : $val *= 1024 ;
483 // Try to determine max file size for uploads (POST).
484 // Returns an integer (in bytes)
485 function getMaxFileSize ()
487 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
488 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
489 // Return the smaller of two:
490 $maxsize = min ( $size1 , $size2 );
491 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
495 // Tells if a string start with a substring or not.
496 function startsWith ( $haystack , $needle , $case = true )
498 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
499 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
502 // Tells if a string ends with a substring or not.
503 function endsWith ( $haystack , $needle , $case = true )
505 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
506 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
509 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
510 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
511 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
512 function linkdate2timestamp ( $linkdate )
515 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
516 return mktime ( $h , $m , $s , $M , $D , $Y );
519 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
520 (used to build the pubDate attribute in RSS feed.) */
521 function linkdate2rfc822 ( $linkdate )
523 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
526 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
527 (used to build the updated tags in ATOM feed.) */
528 function linkdate2iso8601 ( $linkdate )
530 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
533 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
534 (used to display link date on screen)
535 The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
536 function linkdate2locale ( $linkdate )
538 return utf8_encode ( strftime ( '%c' , linkdate2timestamp ( $linkdate ))); // %c is for automatic date format according to locale.
539 // Note that if you use a locale which is not installed on your webserver,
540 // the date will not be displayed in the chosen locale, but probably in US notation.
543 // Parse HTTP response headers and return an associative array.
544 function http_parse_headers_shaarli ( $headers )
547 foreach ( $headers as $header )
549 $i = strpos ( $header , ': ' );
552 $key = substr ( $header , 0 , $i );
553 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
561 Input: $url : URL to get (http://...)
562 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
563 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
564 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
566 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
567 if (strpos($httpstatus,'200 OK')!==false)
568 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
570 echo 'There was an error: '.htmlspecialchars($httpstatus)
572 function getHTTP ( $url , $timeout = 30 )
576 $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
577 $context = stream_context_create ( $options );
578 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
579 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
580 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
581 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
582 return array ( $httpStatus , $responseHeaders , $data );
584 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
586 return array ( $e- > getMessage (), '' , '' );
590 // Extract title from an HTML document.
591 // (Returns an empty string if not found.)
592 function html_extract_title ( $html )
594 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
597 // ------------------------------------------------------------------------------------------
598 // Token management for XSRF protection
599 // Token should be used in any form which acts on data (create,update,delete,import...).
600 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
605 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
606 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
610 // Tells if a token is OK. Using this function will destroy the token.
612 function tokenOk ( $token )
614 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
616 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
617 return true ; // Token is OK.
619 return false ; // Wrong token, or already used.
622 // ------------------------------------------------------------------------------------------
623 /* This class is in charge of building the final page.
624 (This is basically a wrapper around RainTPL which pre-fills some fields.)
626 p.assign('myfield','myvalue');
627 p.renderPage('mytemplate');
632 private $tpl ; // RainTPL template
634 function __construct ()
639 private function initialize ()
641 $this- > tpl
= new RainTPL
;
642 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
643 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
644 $searchcrits = '' ; // Search criteria
645 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
646 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
647 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
648 $this- > tpl
-> assign ( 'source' , indexUrl ());
649 $this- > tpl
-> assign ( 'version' , shaarli_version
);
650 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
651 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
652 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
653 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
654 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
655 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
656 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
660 // The following assign() method is basically the same as RainTPL (except that it's lazy)
661 public function assign ( $what , $where )
663 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
664 $this- > tpl
-> assign ( $what , $where );
667 // Render a specific page (using a template).
668 // e.g. pb.renderPage('picwall')
669 public function renderPage ( $page )
671 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
672 $this- > tpl
-> draw ( $page );
676 // ------------------------------------------------------------------------------------------
677 /* Data storage for links.
678 This object behaves like an associative array.
680 $mylinks = new linkdb();
681 echo $mylinks['20110826_161819']['title'];
682 foreach($mylinks as $link)
683 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
686 title : Title of the link
687 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (e.g.'?m-ukcw')
688 description : description of the entry
689 private : Is this link private? 0=no, other value=yes
690 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (e.g.'20110914_192317')
691 tags : tags attached to this entry (separated by spaces)
693 We implement 3 interfaces:
694 - ArrayAccess so that this object behaves like an associative array.
695 - Iterator so that this object can be used in foreach() loops.
696 - Countable interface so that we can do a count() on this object.
698 class linkdb
implements Iterator
, Countable
, ArrayAccess
700 private $links ; // List of links (associative array. Key=linkdate (e.g. "20110823_124546"), value= associative array (keys:title,description...)
701 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
702 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
703 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
704 private $loggedin ; // Is the user logged in? (used to filter private links)
707 function __construct ( $isLoggedIn )
708 // Input : $isLoggedIn : is the user logged in?
710 $this- > loggedin
= $isLoggedIn ;
711 $this- > checkdb (); // Make sure data file exists.
712 $this- > readdb (); // Then read it.
715 // ---- Countable interface implementation
716 public function count () { return count ( $this
-> links
); }
718 // ---- ArrayAccess interface implementation
719 public function offsetSet ( $offset , $value )
721 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
722 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and URL.' );
723 if ( empty ( $offset )) die ( 'You must specify a key.' );
724 $this- > links
[ $offset ] = $value ;
725 $this- > urls
[ $value [ 'url' ]]= $offset ;
727 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
728 public function offsetUnset ( $offset )
730 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
731 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
732 unset ( $this- > links
[ $offset ]);
734 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
736 // ---- Iterator interface implementation
737 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
738 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
739 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
740 function next () { ++$this
-> position
; } // go to next item
741 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
744 private function checkdb () // Check if db directory and file exists.
746 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
748 $this- > links
= array ();
749 $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' );
750 $this- > links
[ $link [ 'linkdate' ]] = $link ;
751 $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' );
752 $this- > links
[ $link [ 'linkdate' ]] = $link ;
753 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
757 // Read database from disk to memory
758 private function readdb ()
761 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
762 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
764 // If user is not logged in, filter private links.
765 if (! $this- > loggedin
)
768 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
769 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
772 // Keep the list of the mapping URLs-->linkdate up-to-date.
774 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
777 // Save database from memory to disk.
778 public function savedb ()
780 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
781 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
785 // Returns the link for a given URL (if it exists). False if it does not exist.
786 public function getLinkFromUrl ( $url )
788 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
792 // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links.
793 // e.g. print_r($mydb->filterFulltext('hollandais'));
794 public function filterFulltext ( $searchterms )
796 // FIXME: explode(' ',$searchterms) and perform a AND search.
797 // FIXME: accept double-quotes to search for a string "as is"?
798 // Using mb_convert_case($val, MB_CASE_LOWER, 'UTF-8') allows us to perform searches on
799 // Unicode text. See https://github.com/shaarli/Shaarli/issues/75 for examples.
801 $s = mb_convert_case ( $searchterms , MB_CASE_LOWER
, 'UTF-8' );
802 foreach ( $this- > links
as $l )
804 $found = ( strpos ( mb_convert_case ( $l [ 'title' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
805 || ( strpos ( mb_convert_case ( $l [ 'description' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
806 || ( strpos ( mb_convert_case ( $l [ 'url' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
807 || ( strpos ( mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false );
808 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
815 // You can specify one or more tags (tags can be separated by space or comma).
816 // e.g. print_r($mydb->filterTags('linux programming'));
817 public function filterTags ( $tags , $casesensitive = false )
819 // Same as above, we use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
820 // TODO: is $casesensitive ever true ?
821 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : mb_convert_case ( $tags , MB_CASE_LOWER
, 'UTF-8' )));
822 $searchtags = explode ( ' ' , $t );
824 foreach ( $this- > links
as $l )
826 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' )));
827 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
828 $filtered [ $l [ 'linkdate' ]] = $l ;
834 // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125')
835 // Sort order is: older articles first.
836 // e.g. print_r($mydb->filterDay('20120125'));
837 public function filterDay ( $day )
840 foreach ( $this- > links
as $l )
842 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
847 // Filter by smallHash.
848 // Only 1 article is returned.
849 public function filterSmallHash ( $smallHash )
852 foreach ( $this- > links
as $l )
854 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
856 $filtered [ $l [ 'linkdate' ]] = $l ;
863 // Returns the list of all tags
864 // Output: associative array key=tags, value=0
865 public function allTags ()
868 foreach ( $this- > links
as $link )
869 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
870 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
871 arsort ( $tags ); // Sort tags by usage (most used tag first)
875 // Returns the list of days containing articles (oldest first)
876 // Output: An array containing days (in format YYYYMMDD).
877 public function days ()
880 foreach ( array_keys ( $this- > links
) as $day )
882 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
884 $linkdays = array_keys ( $linkdays );
890 // ------------------------------------------------------------------------------------------
891 // Output the last N links in RSS 2.0 format.
894 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
896 // $usepermalink : If true, use permalink instead of final link.
897 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
898 // Also enabled through a config option
899 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
902 $query = $_SERVER [ "QUERY_STRING" ];
903 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
904 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
906 // If cached was not found (or not usable), then read the database and build the response:
907 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if user it not logged in).
909 // Optionally filter the results:
910 $linksToDisplay = array ();
911 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
912 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
913 else $linksToDisplay = $LINKSDB ;
914 $nblinksToDisplay = 50 ; // Number of links to display.
915 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
917 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
920 $pageaddr = htmlspecialchars ( indexUrl ());
921 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
922 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
923 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
924 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
926 echo '<!-- PubSubHubbub Discovery -->' ;
927 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
928 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
929 echo '<!-- End Of PubSubHubbub Discovery -->' ;
932 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
933 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
935 $link = $linksToDisplay [ $keys [ $i ]];
936 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
937 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
938 $absurl = htmlspecialchars ( $link [ 'url' ]);
939 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
940 if ( $usepermalinks === true )
941 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
943 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
944 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
945 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
947 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
950 // Add permalink in description
951 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
952 // If user wants permalinks first, put the final link in description
953 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
954 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
955 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
958 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
960 $cache- > cache ( ob_get_contents ());
965 // ------------------------------------------------------------------------------------------
966 // Output the last N links in ATOM format.
969 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
971 // $usepermalink : If true, use permalink instead of final link.
972 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
973 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
976 $query = $_SERVER [ "QUERY_STRING" ];
977 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
978 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
979 // If cached was not found (or not usable), then read the database and build the response:
981 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
984 // Optionally filter the results:
985 $linksToDisplay = array ();
986 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
987 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
988 else $linksToDisplay = $LINKSDB ;
989 $nblinksToDisplay = 50 ; // Number of links to display.
990 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
992 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
995 $pageaddr = htmlspecialchars ( indexUrl ());
999 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
1000 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
1002 $link = $linksToDisplay [ $keys [ $i ]];
1003 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
1004 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
1005 $latestDate = max ( $latestDate , $iso8601date );
1006 $absurl = htmlspecialchars ( $link [ 'url' ]);
1007 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1008 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1009 if ( $usepermalinks === true )
1010 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1012 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1013 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1015 // Add permalink in description
1016 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1017 // If user wants permalinks first, put the final link in description
1018 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1019 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1021 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1022 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1024 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1025 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1027 $entries .= "</entry> \n " ;
1030 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1031 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1032 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1033 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1034 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1036 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1037 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1038 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1040 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1041 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1043 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1046 $cache- > cache ( ob_get_contents ());
1051 // ------------------------------------------------------------------------------------------
1052 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1053 // Gives the last 7 days (which have links).
1054 // This RSS feed cannot be filtered.
1055 function showDailyRSS ()
1058 $query = $_SERVER [ "QUERY_STRING" ];
1059 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1060 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1061 // If cached was not found (or not usable), then read the database and build the response:
1062 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1064 /* Some Shaarlies may have very few links, so we need to look
1065 back in time (rsort()) until we have enough days ($nb_of_days).
1067 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1069 $nb_of_days = 7 ; // We take 7 days.
1072 foreach ( $linkdates as $linkdate )
1074 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1075 if ( strcmp ( $day , $today )< 0 )
1077 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1078 $days [ $day ][]= $linkdate ;
1080 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days?
1083 // Build the RSS feed.
1084 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1085 $pageaddr = htmlspecialchars ( indexUrl ());
1086 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1087 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1088 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1090 foreach ( $days as $day => $linkdates ) // For each day.
1092 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1093 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1094 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1095 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1096 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1098 // Build the HTML body of this RSS entry.
1102 // We pre-format some fields for proper output.
1103 foreach ( $linkdates as $linkdate )
1105 $l = $LINKSDB [ $linkdate ];
1106 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1107 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1108 $l [ 'localdate' ]= linkdate2locale ( $l [ 'linkdate' ]);
1109 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1110 $links [ $linkdate ]= $l ;
1112 // Then build the HTML for this day:
1114 $tpl- > assign ( 'links' , $links );
1115 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1117 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1120 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1122 $cache- > cache ( ob_get_contents ());
1128 function showDaily ()
1130 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1133 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1134 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1136 $days = $LINKSDB- > days ();
1137 $i = array_search ( $day , $days );
1138 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1143 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1144 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1147 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1148 // We pre-format some fields for proper output.
1149 foreach ( $linksToDisplay as $key => $link )
1151 $taglist = explode ( ' ' , $link [ 'tags' ]);
1152 uasort ( $taglist , 'strcasecmp' );
1153 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1154 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1155 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1156 $linksToDisplay [ $key ][ 'localdate' ] = linkdate2locale ( $link [ 'linkdate' ]);
1159 /* We need to spread the articles on 3 columns.
1160 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1161 so I manually spread entries with a simple method: I roughly evaluate the
1162 height of a div according to title and description length.
1164 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1165 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1166 foreach ( $linksToDisplay as $key => $link )
1168 // Roughly estimate length of entry (by counting characters)
1169 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1170 // Description: 836 characters gives roughly 342 pixel height.
1171 // This is not perfect, but it's usually OK.
1172 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1173 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1174 // Then put in column which is the less filled:
1175 $smallest = min ( $fill ); // find smallest value in array.
1176 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1177 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1178 $fill [ $index ] +
= $length ;
1180 $PAGE = new pageBuilder
;
1181 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1182 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1183 $PAGE- > assign ( 'cols' , $columns );
1184 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1185 $PAGE- > assign ( 'previousday' , $previousday );
1186 $PAGE- > assign ( 'nextday' , $nextday );
1187 $PAGE- > renderPage ( 'daily' );
1192 // ------------------------------------------------------------------------------------------
1193 // Render HTML page (according to URL parameters and user rights)
1194 function renderPage ()
1196 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1198 // -------- Display login form.
1199 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1201 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1202 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1203 $PAGE = new pageBuilder
;
1204 $PAGE- > assign ( 'token' , $token );
1205 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1206 $PAGE- > renderPage ( 'loginform' );
1209 // -------- User wants to logout.
1210 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1214 header ( 'Location: ?' );
1218 // -------- Picture wall
1219 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1221 // Optionally filter the results:
1223 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1224 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1225 else $links = $LINKSDB ;
1227 $linksToDisplay = array ();
1229 // Get only links which have a thumbnail.
1230 foreach ( $links as $link )
1232 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1233 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1234 if ( $thumb != '' ) // Only output links which have a thumbnail.
1236 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1237 $link [ 'permalink' ]= $permalink ;
1238 $linksToDisplay []= $link ; // Add to array.
1241 $PAGE = new pageBuilder
;
1242 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1243 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1244 $PAGE- > renderPage ( 'picwall' );
1248 // -------- Tag cloud
1249 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1251 $tags = $LINKSDB- > allTags ();
1252 // We sort tags alphabetically, then choose a font size according to count.
1253 // First, find max value.
1254 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1257 foreach ( $tags as $key => $value )
1258 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1260 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1262 $PAGE = new pageBuilder
;
1263 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1264 $PAGE- > assign ( 'tags' , $tagList );
1265 $PAGE- > renderPage ( 'tagcloud' );
1269 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1270 if ( isset ( $_GET [ 'addtag' ]))
1272 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1273 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1274 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1276 // Check if this tag is already in the search query and ignore it if it is.
1277 // Each tag is always separated by a space
1278 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1280 foreach ( $current_tags as $value ) {
1281 if ( $value === $_GET [ 'addtag' ]) {
1286 // Append the tag if necessary
1287 if ( empty ( $params [ 'searchtags' ])) {
1288 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1291 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1294 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1295 header ( 'Location: ?' . http_build_query ( $params ));
1299 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1300 if ( isset ( $_GET [ 'removetag' ]))
1302 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1303 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1304 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1305 if ( isset ( $params [ 'searchtags' ]))
1307 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1308 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1309 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1310 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1312 header ( 'Location: ?' . http_build_query ( $params ));
1316 // -------- User wants to change the number of links per page (linksperpage=...)
1317 if ( isset ( $_GET [ 'linksperpage' ]))
1319 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1320 // Make sure the referrer is Shaarli itself.
1322 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1323 $referer = $_SERVER [ 'HTTP_REFERER' ];
1324 header ( 'Location: ' . $referer );
1328 // -------- User wants to see only private links (toggle)
1329 if ( isset ( $_GET [ 'privateonly' ]))
1331 if ( empty ( $_SESSION [ 'privateonly' ]))
1333 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1337 unset ( $_SESSION [ 'privateonly' ]); // See all links
1339 // Make sure the referrer is Shaarli itself.
1341 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1342 $referer = $_SERVER [ 'HTTP_REFERER' ];
1343 header ( 'Location: ' . $referer );
1347 // -------- Handle other actions allowed for non-logged in users:
1350 // User tries to post new link but is not logged in:
1351 // Show login screen, then redirect to ?post=...
1352 if ( isset ( $_GET [ 'post' ]))
1354 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.
1358 // Same case as above except that user tried to access ?do=addlink without being logged in
1359 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1360 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1361 header ( 'Location: ?do=login&post=' );
1365 $PAGE = new pageBuilder
;
1366 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1367 $PAGE- > renderPage ( 'linklist' );
1368 exit ; // Never remove this one! All operations below are reserved for logged in user.
1371 // -------- All other functions are reserved for the registered user:
1373 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1374 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1376 $PAGE = new pageBuilder
;
1377 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1378 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1379 $PAGE- > renderPage ( 'tools' );
1383 // -------- User wants to change his/her password.
1384 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1386 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1387 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1389 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1391 // Make sure old password is correct.
1392 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1393 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1394 // Save new password
1395 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1396 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1398 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1401 else // show the change password form.
1403 $PAGE = new pageBuilder
;
1404 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1405 $PAGE- > assign ( 'token' , getToken ());
1406 $PAGE- > renderPage ( 'changepassword' );
1411 // -------- User wants to change configuration
1412 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1414 if (! empty ( $_POST [ 'title' ]) )
1416 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1418 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1419 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1420 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1421 $GLOBALS [ 'timezone' ] = $tz ;
1422 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1423 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1424 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1425 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1426 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1427 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1428 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1430 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1433 else // Show the configuration form.
1435 $PAGE = new pageBuilder
;
1436 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1437 $PAGE- > assign ( 'token' , getToken ());
1438 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1439 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1440 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1441 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1442 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1443 $PAGE- > renderPage ( 'configure' );
1448 // -------- User wants to rename a tag or delete it
1449 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1451 if ( empty ( $_POST [ 'fromtag' ]))
1453 $PAGE = new pageBuilder
;
1454 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1455 $PAGE- > assign ( 'token' , getToken ());
1456 $PAGE- > renderPage ( 'changetag' );
1459 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1462 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1464 $needle = trim ( $_POST [ 'fromtag' ]);
1465 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1466 foreach ( $linksToAlter as $key => $value )
1468 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1469 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1470 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1471 $LINKSDB [ $key ]= $value ;
1473 $LINKSDB- > savedb (); // Save to disk.
1474 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1479 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1481 $needle = trim ( $_POST [ 'fromtag' ]);
1482 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1483 foreach ( $linksToAlter as $key => $value )
1485 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1486 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1487 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1488 $LINKSDB [ $key ]= $value ;
1490 $LINKSDB- > savedb (); // Save to disk.
1491 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1496 // -------- User wants to add a link without using the bookmarklet: Show form.
1497 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1499 $PAGE = new pageBuilder
;
1500 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1501 $PAGE- > renderPage ( 'addlink' );
1505 // -------- User clicked the "Save" button when editing a link: Save link to database.
1506 if ( isset ( $_POST [ 'save_edit' ]))
1508 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1509 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1510 $linkdate = $_POST [ 'lf_linkdate' ];
1511 $url = trim ( $_POST [ 'lf_url' ]);
1512 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ))
1513 $url = 'http://' . $url ;
1514 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1515 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1516 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1517 $LINKSDB [ $linkdate ] = $link ;
1518 $LINKSDB- > savedb (); // Save to disk.
1521 // If we are called from the bookmarklet, we must close the popup:
1522 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1523 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1524 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1525 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1529 // -------- User clicked the "Cancel" button when editing a link.
1530 if ( isset ( $_POST [ 'cancel_edit' ]))
1532 // If we are called from the bookmarklet, we must close the popup:
1533 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1534 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1535 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1536 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1540 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1541 if ( isset ( $_POST [ 'delete_link' ]))
1543 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1544 // We do not need to ask for confirmation:
1545 // - confirmation is handled by JavaScript
1546 // - we are protected from XSRF by the token.
1547 $linkdate = $_POST [ 'lf_linkdate' ];
1548 unset ( $LINKSDB [ $linkdate ]);
1549 $LINKSDB- > savedb (); // save to disk
1551 // If we are called from the bookmarklet, we must close the popup:
1552 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1553 // Pick where we're going to redirect
1554 // =============================================================
1555 // Basically, we can't redirect to where we were previously if it was a permalink
1556 // or an edit_link, because it would 404.
1558 // - / : nothing in $_GET, redirect to self
1559 // - /?page : redirect to self
1560 // - /?searchterm : redirect to self (there might be other links)
1561 // - /?searchtags : redirect to self
1562 // - /permalink : redirect to / (the link does not exist anymore)
1563 // - /?edit_link : redirect to / (the link does not exist anymore)
1564 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1565 // redirect is not satisfied, and only then redirect to /
1568 if ( count ( $_GET ) == 0 ||
1569 isset ( $_GET [ 'page' ]) ||
1570 isset ( $_GET [ 'searchterm' ]) ||
1571 isset ( $_GET [ 'searchtags' ])) {
1573 if ( isset ( $_POST [ 'returnurl' ])) {
1574 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1577 if ( $location === "?" &&
1578 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1579 $location = $_SERVER [ 'HTTP_REFERER' ];
1583 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1587 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1588 if ( isset ( $_GET [ 'edit_link' ]))
1590 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1591 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1592 $PAGE = new pageBuilder
;
1593 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1594 $PAGE- > assign ( 'link' , $link );
1595 $PAGE- > assign ( 'link_is_new' , false );
1596 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1597 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1598 $PAGE- > renderPage ( 'editlink' );
1602 // -------- User want to post a new link: Display link edit form.
1603 if ( isset ( $_GET [ 'post' ]))
1607 // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
1608 $i = strpos ( $url , '&utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1609 $i = strpos ( $url , '?utm_source=' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1610 $i = strpos ( $url , '#xtor=RSS-' ); if ( $i !== false ) $url = substr ( $url , 0 , $i );
1612 $link_is_new = false ;
1613 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1616 $link_is_new = true ; // This is a new link
1617 $linkdate = strval ( date ( 'Ymd_His' ));
1618 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1619 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1620 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1621 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1622 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1623 // 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.)
1624 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1626 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1627 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1628 if ( strpos ( $status , '200 OK' )!== false )
1630 // Look for charset in html header.
1631 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1633 // If found, extract encoding.
1634 if (! empty ( $meta [ 0 ]))
1636 // Get encoding specified in header.
1637 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1638 // If charset not found, use utf-8.
1639 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1641 else { $html_charset
= 'utf-8' ; }
1644 $title = html_extract_title ( $data );
1647 // Re-encode title in utf-8 if necessary.
1648 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1652 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1654 $url = '?' . smallHash ( $linkdate );
1657 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1660 $PAGE = new pageBuilder
;
1661 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1662 $PAGE- > assign ( 'link' , $link );
1663 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1664 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1665 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1666 $PAGE- > renderPage ( 'editlink' );
1670 // -------- Export as Netscape Bookmarks HTML file.
1671 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1673 if ( empty ( $_GET [ 'what' ]))
1675 $PAGE = new pageBuilder
;
1676 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1677 $PAGE- > renderPage ( 'export' );
1680 $exportWhat = $_GET [ 'what' ];
1681 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1683 header ( 'Content-Type: text/html; charset=utf-8' );
1684 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1685 $currentdate = date ( 'Y/m/d H:i:s' );
1687 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1688 <!-- This is an automatically generated file.
1689 It will be read and overwritten.
1691 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1692 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1693 <TITLE>Bookmarks</TITLE>
1696 foreach ( $LINKSDB as $link )
1698 if ( $exportWhat == 'all' ||
1699 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1700 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1702 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1703 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1704 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1705 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1711 // -------- User is uploading a file for import
1712 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1714 // If file is too big, some form field may be missing.
1715 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1717 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1718 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept (' . getMaxFileSize (). ' bytes). Please upload in smaller chunks.");document.location= \' ' . htmlspecialchars ( $returnurl ). ' \' ;</script>' ;
1721 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1726 // -------- Show upload/import dialog:
1727 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1729 $PAGE = new pageBuilder
;
1730 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1731 $PAGE- > assign ( 'token' , getToken ());
1732 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1733 $PAGE- > renderPage ( 'import' );
1737 // -------- Otherwise, simply display search form and links:
1738 $PAGE = new pageBuilder
;
1739 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1740 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1741 $PAGE- > renderPage ( 'linklist' );
1745 // -----------------------------------------------------------------------------------------------
1746 // Process the import file form.
1747 function importFile ()
1749 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1750 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1751 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1752 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1753 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1754 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1755 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1760 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1762 // Then import the bookmarks.
1763 if ( $type == 'netscape' )
1765 // This is a standard Netscape-style bookmark file.
1766 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1767 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1769 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1770 $d = explode ( '<DD>' , $html );
1771 if ( startswith ( $d [ 0 ], '<A ' ))
1773 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1774 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1775 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1776 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1778 foreach ( $matches as $m )
1780 $attr = $m [ 1 ]; $value = $m [ 2 ];
1781 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1782 elseif ( $attr == 'ADD_DATE' )
1784 $raw_add_date = intval ( $value );
1785 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1787 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1788 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1790 if ( $link [ 'url' ]!= '' )
1792 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1793 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1795 { // Link not in database, let's import it...
1796 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1798 // Make sure date/time is not already used by another link.
1799 // (Some bookmark files have several different links with the same ADD_DATE)
1800 // We increment date by 1 second until we find a date which is not used in DB.
1801 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1802 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1803 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1804 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1807 else // Link already present in database.
1810 { // If overwrite is required, we import link data, except date/time.
1811 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1812 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1822 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1826 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1830 // -----------------------------------------------------------------------------------------------
1831 // Template for the list of links (<div id="linklist">)
1832 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1833 function buildLinkList ( $PAGE , $LINKSDB )
1835 // ---- Filter link database according to parameters
1836 $linksToDisplay = array ();
1839 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1841 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1842 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1843 $search_type = 'fulltext' ;
1845 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1847 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1848 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1849 $search_type = 'tags' ;
1851 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1853 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1854 if ( count ( $linksToDisplay )== 0 )
1856 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1857 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1858 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1861 $search_type = 'permalink' ;
1864 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1866 // Option: Show only private links
1867 if (! empty ( $_SESSION [ 'privateonly' ]))
1870 foreach ( $linksToDisplay as $linkdate => $link )
1872 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1874 $linksToDisplay = $tmp ;
1877 // ---- Handle paging.
1878 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1879 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1880 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1882 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1884 // If there is only a single link, we change on-the-fly the title of the page.
1885 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1887 // Select articles according to paging.
1888 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1889 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1890 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1891 $page = ( $page < 1 ? 1 : $page );
1892 $page = ( $page > $pagecount ? $pagecount : $page );
1893 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1894 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1895 $linkDisp = array (); // Links to display
1896 while ( $i < $end && $i < count ( $keys ))
1898 $link = $linksToDisplay [ $keys [ $i ]];
1899 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1900 $title = $link [ 'title' ];
1901 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1902 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1903 $link [ 'localdate' ]= linkdate2locale ( $link [ 'linkdate' ]);
1904 $taglist = explode ( ' ' , $link [ 'tags' ]);
1905 uasort ( $taglist , 'strcasecmp' );
1906 $link [ 'taglist' ]= $taglist ;
1907 $linkDisp [ $keys [ $i ]] = $link ;
1911 // Compute paging navigation
1912 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1913 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1915 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1916 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1918 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1920 // Fill all template fields.
1921 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1922 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1923 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1924 $PAGE- > assign ( 'page_current' , $page );
1925 $PAGE- > assign ( 'page_max' , $pagecount );
1926 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1927 $PAGE- > assign ( 'search_type' , $search_type );
1928 $PAGE- > assign ( 'search_crits' , $search_crits );
1929 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1930 $PAGE- > assign ( 'token' , $token );
1931 $PAGE- > assign ( 'links' , $linkDisp );
1935 // Compute the thumbnail for a link.
1937 // With a link to the original URL.
1938 // Understands various services (youtube.com...)
1939 // Input: $url = URL for which the thumbnail must be found.
1940 // $href = if provided, this URL will be followed instead of $url
1941 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1942 // Some of them may be missing.
1943 // Return an empty array if no thumbnail available.
1944 function computeThumbnail ( $url , $href = false )
1946 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1947 if ( $href == false ) $href = $url ;
1949 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1950 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1951 // ^^^^^^^^^^^ ^^^^^^^^^^^
1952 $domain = parse_url ( $url , PHP_URL_HOST
);
1953 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1955 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1956 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1957 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1959 if ( $domain == 'youtu.be' ) // Youtube short links
1961 $path = parse_url ( $url , PHP_URL_PATH
);
1962 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1963 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1965 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1967 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1968 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1969 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1972 if ( $domain == 'imgur.com' )
1974 $path = parse_url ( $url , PHP_URL_PATH
);
1975 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1976 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1977 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1978 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1979 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1981 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1982 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1984 if ( $domain == 'i.imgur.com' )
1986 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1987 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1988 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1990 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1992 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1994 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1995 return array ( 'src' => $thumburl ,
1996 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1999 if ( endsWith ( $domain , '.imageshack.us' ))
2001 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2002 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2004 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
2005 return array ( 'src' => $thumburl ,
2006 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
2010 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2011 // So we deport the thumbnail generation in order not to slow down page generation
2012 // (and we also cache the thumbnail)
2014 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2016 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
2017 || $domain == 'vimeo.com'
2018 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
2019 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
2022 if ( $domain == 'vimeo.com' )
2023 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
2024 $path = parse_url ( $url , PHP_URL_PATH
);
2025 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
2027 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2028 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
2029 $path = parse_url ( $url , PHP_URL_PATH
);
2030 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
2032 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2033 { // Make sure this TED URL points to a video (/talks/...)
2034 $path = parse_url ( $url , PHP_URL_PATH
);
2035 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
2037 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2038 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2039 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2042 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2043 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2044 // But using the extension will do.
2045 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2046 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2048 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2049 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2050 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2052 return array (); // No thumbnail.
2057 // Returns the HTML code to display a thumbnail for a link
2058 // with a link to the original URL.
2059 // Understands various services (youtube.com...)
2060 // Input: $url = URL for which the thumbnail must be found.
2061 // $href = if provided, this URL will be followed instead of $url
2062 // Returns '' if no thumbnail available.
2063 function thumbnail ( $url , $href = false )
2065 $t = computeThumbnail ( $url , $href );
2066 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2068 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2069 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2070 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2071 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2072 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2078 // Returns the HTML code to display a thumbnail for a link
2079 // for the picture wall (using lazy image loading)
2080 // Understands various services (youtube.com...)
2081 // Input: $url = URL for which the thumbnail must be found.
2082 // $href = if provided, this URL will be followed instead of $url
2083 // Returns '' if no thumbnail available.
2084 function lazyThumbnail ( $url , $href = false )
2086 $t = computeThumbnail ( $url , $href );
2087 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2089 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2091 // Lazy image (only loaded by JavaScript when in the viewport).
2092 if (! empty ( $GLOBALS [ 'disablejquery' ])) // (except if jQuery is disabled)
2093 $html .= '<img class="lazyimage" src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2095 $html .= '<img class="lazyimage" src="#" data-original="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2097 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2098 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2099 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2100 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2103 // No-JavaScript fallback.
2104 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2105 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2106 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2107 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2108 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2109 $html .= '></noscript></a>' ;
2115 // -----------------------------------------------------------------------------------------------
2117 // This function should NEVER be called if the file data/config.php exists.
2120 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2121 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2124 // This part makes sure sessions works correctly.
2125 // (Because on some hosts, session.save_path may not be set correctly,
2126 // or we may not have write access to it.)
2127 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2128 { // Step 2: Check if data in session is correct.
2129 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2130 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2131 echo 'It currently points to ' . session_save_path (). '<br>' ;
2132 echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \' localhost \' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it \' s IP address or Fully Qualified Domain Name.<br>' ;
2133 echo '<br><a href="?">Click to try again.</a></pre>' ;
2136 if (! isset ( $_SESSION [ 'session_tested' ]))
2137 { // Step 1 : Try to store data in session and reload page.
2138 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2139 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2141 if ( isset ( $_GET [ 'test_session' ]))
2142 { // Step 3: Sessions are OK. Remove test parameter from URL.
2143 header ( 'Location: ' . indexUrl ());
2147 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2150 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2151 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2152 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2153 $GLOBALS [ 'timezone' ] = $tz ;
2154 // Everything is ok, let's create config file.
2155 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2156 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2157 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2158 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2160 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2164 // Display config form:
2165 list ( $timezone_form , $timezone_js ) = templateTZform ();
2166 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2168 $PAGE = new pageBuilder
;
2169 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2170 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2171 $PAGE- > renderPage ( 'install' );
2175 // Generates the timezone selection form and JavaScript.
2176 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2177 // Output: array(html,js)
2178 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2179 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2180 function templateTZform ( $ptz = false )
2182 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2184 // Try to split the provided timezone.
2185 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2186 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2188 // Display config form:
2189 $timezone_form = '' ;
2191 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2192 // We split the list in continents/cities.
2193 $continents = array ();
2195 foreach ( timezone_identifiers_list () as $tz )
2197 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2198 $spos = strpos ( $tz , '/' );
2201 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2202 $continents [ $continent ]= 1 ;
2203 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2204 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2207 $continents_html = '' ;
2208 $continents = array_keys ( $continents );
2209 foreach ( $continents as $continent )
2210 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2211 $cities_html = $cities [ $pcontinent ];
2212 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2213 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2214 $timezone_js = "<script>" ;
2215 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2216 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2217 $timezone_js .= "</script>" ;
2218 return array ( $timezone_form , $timezone_js );
2220 return array ( '' , '' );
2223 // Tells if a timezone is valid or not.
2224 // If not valid, returns false.
2225 // If system does not support timezone list, returns false.
2226 function isTZvalid ( $continent , $city )
2228 $tz = $continent . '/' . $city ;
2229 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2231 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2236 if (! function_exists ( 'json_encode' )) {
2237 function json_encode ( $data ) {
2238 switch ( $type = gettype ( $data )) {
2242 return ( $data ? 'true' : 'false' );
2248 return '"' . addslashes ( $data ) . '"' ;
2250 $data = get_object_vars ( $data );
2252 $output_index_count = 0 ;
2253 $output_indexed = array ();
2254 $output_associative = array ();
2255 foreach ( $data as $key => $value ) {
2256 $output_indexed [] = json_encode ( $value );
2257 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2258 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2259 $output_index_count = NULL ;
2262 if ( $output_index_count !== NULL ) {
2263 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2265 return ' {' . implode(',', $output_associative) . '} ' ;
2268 return '' ; // Not supported
2273 // Webservices (for use with jQuery/jQueryUI)
2274 // e.g. index.php?ws=tags&term=minecr
2275 function processWS ()
2277 if ( empty ( $_GET [ 'ws' ]) || empty ( $_GET [ 'term' ])) return ;
2278 $term = $_GET [ 'term' ];
2279 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
2280 header ( 'Content-Type: application/json; charset=utf-8' );
2282 // Search in tags (case insensitive, cumulative search)
2283 if ( $_GET [ 'ws' ]== 'tags' )
2285 $tags = explode ( ' ' , str_replace ( ',' , ' ' , $term )); $last = array_pop ( $tags ); // Get the last term ("a b c d" ==> "a b c", "d")
2286 $addtags = '' ; if ( $tags ) $addtags = implode ( ' ' , $tags ). ' ' ; // We will pre-pend previous tags
2288 /* To speed up things, we store list of tags in session */
2289 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2290 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2292 if ( startsWith ( $key , $last , $case = false ) && ! in_array ( $key , $tags )) $suggested [ $addtags . $key . ' ' ]= 0 ;
2294 echo json_encode ( array_keys ( $suggested ));
2298 // Search a single tag (case sensitive, single tag search)
2299 if ( $_GET [ 'ws' ]== 'singletag' )
2301 /* To speed up things, we store list of tags in session */
2302 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
2303 foreach ( $_SESSION [ 'tags' ] as $key => $value )
2305 if ( startsWith ( $key , $term , $case = true )) $suggested [ $key ]= 0 ;
2307 echo json_encode ( array_keys ( $suggested ));
2312 // Re-write configuration file according to globals.
2313 // Requires some $GLOBALS to be set (login,hash,salt,title).
2314 // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu.
2315 // (otherwise, the function simply returns.)
2316 function writeConfig ()
2318 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2319 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2320 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2321 $config .= ' $GLOBALS [ \' titleLink \' ]=' . var_export ( $GLOBALS [ 'titleLink' ], true ). '; ' ;
2322 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2323 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2324 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2325 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2326 $config .= ' $GLOBALS [ \' config \' ][ \' ENABLE_RSS_PERMALINKS \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ], true ). '; ' ;
2328 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2330 echo '<script>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>' ;
2335 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2336 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2337 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2338 This function is called by passing the URL:
2339 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2340 [URL] is the URL of the link (e.g. a flickr page)
2341 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2342 The function below will fetch the image from the webservice and store it in the cache.
2344 function genThumbnail ()
2346 // Make sure the parameters in the URL were generated by us.
2347 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2348 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2350 // Let's see if we don't already have the image for this URL in the cache.
2351 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2352 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2353 { // We have the thumbnail, just serve it:
2354 header ( 'Content-Type: image/jpeg' );
2355 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2358 // We may also serve a blank image (if service did not respond)
2359 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2360 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2362 header ( 'Content-Type: image/gif' );
2363 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2367 // Otherwise, generate the thumbnail.
2368 $url = $_GET [ 'url' ];
2369 $domain = parse_url ( $url , PHP_URL_HOST
);
2371 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2373 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2374 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2376 // Is this a link to an image, or to a flickr page ?
2378 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2379 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2380 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2381 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2383 else // This is a flickr page (html)
2385 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2386 if ( strpos ( $httpstatus , '200 OK' )!== false )
2388 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2389 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2390 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2392 // In albums (and some other pages), the link rel="image_src" is not provided,
2393 // but flickr provides:
2394 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2397 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2398 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2404 { // Let's download the image.
2405 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2406 if ( strpos ( $httpstatus , '200 OK' )!== false )
2408 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2409 header ( 'Content-Type: image/jpeg' );
2416 elseif ( $domain == 'vimeo.com' )
2418 // This is more complex: we have to perform a HTTP request, then parse the result.
2419 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2420 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2421 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2422 if ( strpos ( $httpstatus , '200 OK' )!== false )
2424 $t = unserialize ( $data );
2425 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2426 // Then we download the image and serve it to our client.
2427 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2428 if ( strpos ( $httpstatus , '200 OK' )!== false )
2430 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2431 header ( 'Content-Type: image/jpeg' );
2438 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2440 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2441 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2442 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2443 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2444 if ( strpos ( $httpstatus , '200 OK' )!== false )
2446 // Extract the link to the thumbnail
2447 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2448 if (! empty ( $matches [ 1 ]))
2449 { // Let's download the image.
2450 $imageurl = $matches [ 1 ];
2451 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2452 if ( strpos ( $httpstatus , '200 OK' )!== false )
2454 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2455 file_put_contents ( $filepath , $data ); // Save image to cache.
2456 if ( resizeImage ( $filepath ))
2458 header ( 'Content-Type: image/jpeg' );
2459 echo file_get_contents ( $filepath );
2467 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2469 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2470 // http://xkcd.com/327/
2471 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2472 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2473 if ( strpos ( $httpstatus , '200 OK' )!== false )
2475 // Extract the link to the thumbnail
2476 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2477 if (! empty ( $matches [ 1 ]))
2478 { // Let's download the image.
2479 $imageurl = $matches [ 1 ];
2480 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2481 if ( strpos ( $httpstatus , '200 OK' )!== false )
2483 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2484 file_put_contents ( $filepath , $data ); // Save image to cache.
2485 if ( resizeImage ( $filepath ))
2487 header ( 'Content-Type: image/jpeg' );
2488 echo file_get_contents ( $filepath );
2498 // For all other domains, we try to download the image and make a thumbnail.
2499 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2500 if ( strpos ( $httpstatus , '200 OK' )!== false )
2502 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2503 file_put_contents ( $filepath , $data ); // Save image to cache.
2504 if ( resizeImage ( $filepath ))
2506 header ( 'Content-Type: image/jpeg' );
2507 echo file_get_contents ( $filepath );
2514 // Otherwise, return an empty image (8x8 transparent gif)
2515 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2516 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2517 header ( 'Content-Type: image/gif' );
2521 // Make a thumbnail of the image (to width: 120 pixels)
2522 // Returns true if success, false otherwise.
2523 function resizeImage ( $filepath )
2525 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2527 // Trick: some stupid people rename GIF as JPEG... or else.
2528 // So we really try to open each image type whatever the extension is.
2529 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2531 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2532 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2533 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2534 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2537 $ystart = 0 ; $yheight = $h ;
2538 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2539 $nw = 120 ; // Desired width
2540 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2542 $im2 = imagecreatetruecolor ( $nw , $nh );
2543 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2544 imageinterlace ( $im2 , true ); // For progressive JPEG.
2545 $tempname = $filepath . '_TEMP.jpg' ;
2546 imagejpeg ( $im2 , $tempname , 90 );
2550 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2554 // Invalidate caches when the database is changed or the user logs out.
2555 // (e.g. tags cache).
2556 function invalidateCaches ()
2558 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2559 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2562 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2563 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2564 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2565 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2566 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2567 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'ws=' )) { processWS (); exit ; } // Webservices (for jQuery/jQueryUI)
2568 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];