]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
2 // Shaarli 0.0.45beta - Shaare your links...
3 // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net
4 // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
5 // Licence: http://www.opensource.org/licenses/zlib-license.php
6 // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x)
7 // -----------------------------------------------------------------------------------------------
8 // NEVER TRUST IN PHP.INI
9 // Some hosts do not define a default timezone in php.ini,
10 // so we have to do this for avoid the strict standard error.
11 date_default_timezone_set ( 'UTC' );
13 // -----------------------------------------------------------------------------------------------
14 // Hardcoded parameter (These parameters can be overwritten by 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' , '0.0.45beta' );
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.
116 //==================================================================================================
117 // Checking session state (i.e. is the user still logged in)
118 //==================================================================================================
120 function setup_login_state () {
121 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
122 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
123 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
124 $userIsLoggedIn = true ;
126 if (! isset ( $GLOBALS [ 'login' ])) {
127 $userIsLoggedIn = false ; // Shaarli is not configured yet.
128 $loginFailure = true ;
130 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
131 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
135 $userIsLoggedIn = true ;
137 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
138 if ( empty ( $_SESSION [ 'uid' ]) ||
139 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
140 time () >= $_SESSION [ 'expires_on' ])
143 $userIsLoggedIn = false ;
144 $loginFailure = true ;
146 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
147 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
150 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
152 if (! $loginFailure ) {
153 $userIsLoggedIn = true ;
156 return $userIsLoggedIn ;
158 //==================================================================================================
159 $userIsLoggedIn = setup_login_state ();
160 //==================================================================================================
161 //==================================================================================================
164 function checkphpversion ()
166 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
168 header ( 'Content-Type: text/plain; charset=utf-8' );
169 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.' ;
174 // Checks if an update is available for Shaarli.
175 // (at most once a day, and only for registered user.)
176 // Output: '' = no new version.
177 // other= the available version.
178 function checkUpdate ()
180 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
181 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
183 // Get latest version number at most once a day.
184 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
186 $version = shaarli_version
;
187 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
188 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
189 // If failed, never mind. We don't want to bother the user with that.
190 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
193 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
194 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
199 // -----------------------------------------------------------------------------------------------
200 // Simple cache system (mainly for the RSS/ATOM feeds).
204 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
205 private $shouldBeCached ; // boolean: Should this url be cached?
206 private $filename ; // Name of the cache file for this url.
209 $url = URL (typically the value returned by pageUrl())
210 $shouldBeCached = boolean. If false, the cache will be disabled.
212 public function __construct ( $url , $shouldBeCached )
215 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
216 $this- > shouldBeCached
= $shouldBeCached ;
219 // If the page should be cached and a cached version exists,
220 // returns the cached version (otherwise, return null).
221 public function cachedVersion ()
223 if (! $this- > shouldBeCached
) return null ;
224 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
228 // Put a page in the cache.
229 public function cache ( $page )
231 if (! $this- > shouldBeCached
) return ;
232 file_put_contents ( $this- > filename
, $page );
235 // Purge the whole cache.
236 // (call with pageCache::purgeCache())
237 public static function purgeCache ()
239 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
241 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
242 if ( $handler !== false )
244 while (( $filename = readdir ( $handler ))!== false )
246 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
256 // -----------------------------------------------------------------------------------------------
258 function logm ( $message )
260 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
261 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
264 // Same as nl2br(), but escapes < and >
265 function nl2br_escaped ( $html )
267 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
270 /* Returns the small hash of a string, using RFC 4648 base64url format
271 e.g. smallHash('20111006_131924') --> yZH23w
273 - are unique (well, as unique as crc32, at last)
274 - are always 6 characters long.
275 - only use the following characters: a-z A-Z 0-9 - _ @
276 - are NOT cryptographically secure (they CAN be forged)
277 In Shaarli, they are used as a tinyurl-like link to individual entries.
279 function smallHash ( $text )
281 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
282 return strtr ( $t , '+/' , '-_' );
285 // In a string, converts URLs to clickable links.
286 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
287 function text2clickable ( $url )
289 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
290 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
293 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
294 // even in the absence of <pre> (This is used in description to keep text formatting)
295 function keepMultipleSpaces ( $text )
297 return str_replace ( ' ' , ' ' , $text );
300 // ------------------------------------------------------------------------------------------
301 // Sniff browser language to display dates in the right format automatically.
302 // (Note that is may not work on your server if the corresponding local is not installed.)
303 function autoLocale ()
305 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
306 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
307 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
308 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
310 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
313 // ------------------------------------------------------------------------------------------
314 // PubSubHubbub protocol support (if enabled) [UNTESTED]
315 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
316 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
319 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
321 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
323 indexUrl (). '?do=atom' ,
326 $p- > publish_update ( $topic_url );
330 // ------------------------------------------------------------------------------------------
331 // Session management
333 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
336 $ip = $_SERVER [ "REMOTE_ADDR" ];
337 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
338 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
339 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
343 function fillSessionInfo () {
344 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
345 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
346 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
347 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
350 // Check that user/password is correct.
351 function check_auth ( $login , $password )
353 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
354 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
355 { // Login/password is correct.
357 logm ( 'Login successful' );
360 logm ( 'Login failed for user ' . $login );
364 // Returns true if the user is logged in.
365 function isLoggedIn ()
367 global $userIsLoggedIn ;
368 return $userIsLoggedIn ;
373 if ( isset ( $_SESSION )) {
374 unset ( $_SESSION [ 'uid' ]);
375 unset ( $_SESSION [ 'ip' ]);
376 unset ( $_SESSION [ 'username' ]);
377 unset ( $_SESSION [ 'privateonly' ]);
379 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
383 // ------------------------------------------------------------------------------------------
384 // Brute force protection system
385 // Several consecutive failed logins will ban the IP address for 30 minutes.
386 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 ?>" );
387 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
388 // Signal a failed login. Will ban the IP if too many failures:
389 function ban_loginFailed ()
391 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
392 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
393 $gb [ 'FAILURES' ][ $ip ] ++
;
394 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
396 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
397 logm ( 'IP address banned from login' );
399 $GLOBALS [ 'IPBANS' ] = $gb ;
400 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
403 // Signals a successful login. Resets failed login counter.
404 function ban_loginOk ()
406 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
407 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
408 $GLOBALS [ 'IPBANS' ] = $gb ;
409 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
412 // Checks if the user CAN login. If 'true', the user can try to login.
413 function ban_canLogin ()
415 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
416 if ( isset ( $gb [ 'BANS' ][ $ip ]))
418 // User is banned. Check if the ban has expired:
419 if ( $gb [ 'BANS' ][ $ip ]<= time ())
420 { // Ban expired, user can try to login again.
422 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
423 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
424 return true ; // Ban has expired, user can login.
426 return false ; // User is banned.
428 return true ; // User is not banned.
431 // ------------------------------------------------------------------------------------------
432 // Process login form: Check if login/password is correct.
433 if ( isset ( $_POST [ 'login' ]))
435 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
436 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
437 { // Login/password is OK.
439 // If user wants to keep the session cookie even after the browser closes:
440 if (! empty ( $_POST [ 'longlastingsession' ]))
442 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
443 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
444 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
446 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
447 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
448 // Note: Never forget the trailing slash on the cookie path!
449 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
451 else // Standard session expiration (=when browser closes)
453 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
454 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
455 session_regenerate_id ( true );
457 // Optional redirect after login:
458 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 ; }
459 if ( isset ( $_POST [ 'returnurl' ]))
461 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
462 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
464 header ( 'Location: ?' ); exit ;
470 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' ]): '' ); }
471 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
476 // ------------------------------------------------------------------------------------------
477 // Misc utility functions:
479 // Returns the server URL (including port and http/https), without path.
480 // e.g. "http://myserver.com:8080"
481 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
484 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
485 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
486 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
489 // Returns the absolute URL of current script, without the query.
490 // (e.g. http://sebsauvage.net/links/)
493 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
494 // If the script is named 'index.php', we remove it (for better looking URLs,
495 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
496 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
497 return serverUrl () . $scriptname ;
500 // Returns the absolute URL of current script, WITH the query.
501 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
504 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
507 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
508 function return_bytes ( $val )
510 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
513 case 'g' : $val *= 1024 ;
514 case 'm' : $val *= 1024 ;
515 case 'k' : $val *= 1024 ;
520 // Try to determine max file size for uploads (POST).
521 // Returns an integer (in bytes)
522 function getMaxFileSize ()
524 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
525 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
526 // Return the smaller of two:
527 $maxsize = min ( $size1 , $size2 );
528 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
532 // Tells if a string start with a substring or not.
533 function startsWith ( $haystack , $needle , $case = true )
535 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
536 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
539 // Tells if a string ends with a substring or not.
540 function endsWith ( $haystack , $needle , $case = true )
542 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
543 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
546 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
547 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
548 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
549 function linkdate2timestamp ( $linkdate )
552 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
553 return mktime ( $h , $m , $s , $M , $D , $Y );
556 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
557 (used to build the pubDate attribute in RSS feed.) */
558 function linkdate2rfc822 ( $linkdate )
560 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
563 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
564 (used to build the updated tags in ATOM feed.) */
565 function linkdate2iso8601 ( $linkdate )
567 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
570 // Parse HTTP response headers and return an associative array.
571 function http_parse_headers_shaarli ( $headers )
574 foreach ( $headers as $header )
576 $i = strpos ( $header , ': ' );
579 $key = substr ( $header , 0 , $i );
580 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
588 Input: $url : URL to get (http://...)
589 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
590 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
591 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
593 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
594 if (strpos($httpstatus,'200 OK')!==false)
595 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
597 echo 'There was an error: '.htmlspecialchars($httpstatus)
599 function getHTTP ( $url , $timeout = 30 )
603 $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
604 $context = stream_context_create ( $options );
605 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
606 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
607 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
608 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
609 return array ( $httpStatus , $responseHeaders , $data );
611 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
613 return array ( $e- > getMessage (), '' , '' );
617 // Extract title from an HTML document.
618 // (Returns an empty string if not found.)
619 function html_extract_title ( $html )
621 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
624 // ------------------------------------------------------------------------------------------
625 // Token management for XSRF protection
626 // Token should be used in any form which acts on data (create,update,delete,import...).
627 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
632 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
633 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
637 // Tells if a token is OK. Using this function will destroy the token.
639 function tokenOk ( $token )
641 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
643 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
644 return true ; // Token is OK.
646 return false ; // Wrong token, or already used.
649 // ------------------------------------------------------------------------------------------
650 /* This class is in charge of building the final page.
651 (This is basically a wrapper around RainTPL which pre-fills some fields.)
653 p.assign('myfield','myvalue');
654 p.renderPage('mytemplate');
659 private $tpl ; // RainTPL template
661 function __construct ()
666 private function initialize ()
668 $this- > tpl
= new RainTPL
;
669 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
670 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
671 $searchcrits = '' ; // Search criteria
672 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
673 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
674 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
675 $this- > tpl
-> assign ( 'source' , indexUrl ());
676 $this- > tpl
-> assign ( 'version' , shaarli_version
);
677 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
678 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
679 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
680 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
681 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
682 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
683 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
687 // The following assign() method is basically the same as RainTPL (except that it's lazy)
688 public function assign ( $what , $where )
690 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
691 $this- > tpl
-> assign ( $what , $where );
694 // Render a specific page (using a template).
695 // e.g. pb.renderPage('picwall')
696 public function renderPage ( $page )
698 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
699 $this- > tpl
-> draw ( $page );
703 // ------------------------------------------------------------------------------------------
704 /* Data storage for links.
705 This object behaves like an associative array.
707 $mylinks = new linkdb();
708 echo $mylinks['20110826_161819']['title'];
709 foreach($mylinks as $link)
710 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
713 title : Title of the link
714 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (e.g.'?m-ukcw')
715 description : description of the entry
716 private : Is this link private? 0=no, other value=yes
717 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (e.g.'20110914_192317')
718 tags : tags attached to this entry (separated by spaces)
720 We implement 3 interfaces:
721 - ArrayAccess so that this object behaves like an associative array.
722 - Iterator so that this object can be used in foreach() loops.
723 - Countable interface so that we can do a count() on this object.
725 class linkdb
implements Iterator
, Countable
, ArrayAccess
727 private $links ; // List of links (associative array. Key=linkdate (e.g. "20110823_124546"), value= associative array (keys:title,description...)
728 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
729 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
730 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
731 private $loggedin ; // Is the user logged in? (used to filter private links)
734 function __construct ( $isLoggedIn )
735 // Input : $isLoggedIn : is the user logged in?
737 $this- > loggedin
= $isLoggedIn ;
738 $this- > checkdb (); // Make sure data file exists.
739 $this- > readdb (); // Then read it.
742 // ---- Countable interface implementation
743 public function count () { return count ( $this
-> links
); }
745 // ---- ArrayAccess interface implementation
746 public function offsetSet ( $offset , $value )
748 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
749 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and URL.' );
750 if ( empty ( $offset )) die ( 'You must specify a key.' );
751 $this- > links
[ $offset ] = $value ;
752 $this- > urls
[ $value [ 'url' ]]= $offset ;
754 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
755 public function offsetUnset ( $offset )
757 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
758 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
759 unset ( $this- > links
[ $offset ]);
761 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
763 // ---- Iterator interface implementation
764 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
765 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
766 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
767 function next () { ++$this
-> position
; } // go to next item
768 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
771 private function checkdb () // Check if db directory and file exists.
773 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
775 $this- > links
= array ();
776 $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' );
777 $this- > links
[ $link [ 'linkdate' ]] = $link ;
778 $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' );
779 $this- > links
[ $link [ 'linkdate' ]] = $link ;
780 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
784 // Read database from disk to memory
785 private function readdb ()
788 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
789 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
791 // If user is not logged in, filter private links.
792 if (! $this- > loggedin
)
795 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
796 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
799 // Keep the list of the mapping URLs-->linkdate up-to-date.
801 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
804 // Save database from memory to disk.
805 public function savedb ()
807 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
808 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
812 // Returns the link for a given URL (if it exists). False if it does not exist.
813 public function getLinkFromUrl ( $url )
815 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
819 // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links.
820 // e.g. print_r($mydb->filterFulltext('hollandais'));
821 public function filterFulltext ( $searchterms )
823 // FIXME: explode(' ',$searchterms) and perform a AND search.
824 // FIXME: accept double-quotes to search for a string "as is"?
825 // Using mb_convert_case($val, MB_CASE_LOWER, 'UTF-8') allows us to perform searches on
826 // Unicode text. See https://github.com/shaarli/Shaarli/issues/75 for examples.
828 $s = mb_convert_case ( $searchterms , MB_CASE_LOWER
, 'UTF-8' );
829 foreach ( $this- > links
as $l )
831 $found = ( strpos ( mb_convert_case ( $l [ 'title' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
832 || ( strpos ( mb_convert_case ( $l [ 'description' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
833 || ( strpos ( mb_convert_case ( $l [ 'url' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
834 || ( strpos ( mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false );
835 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
842 // You can specify one or more tags (tags can be separated by space or comma).
843 // e.g. print_r($mydb->filterTags('linux programming'));
844 public function filterTags ( $tags , $casesensitive = false )
846 // Same as above, we use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
847 // TODO: is $casesensitive ever true ?
848 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : mb_convert_case ( $tags , MB_CASE_LOWER
, 'UTF-8' )));
849 $searchtags = explode ( ' ' , $t );
851 foreach ( $this- > links
as $l )
853 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' )));
854 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
855 $filtered [ $l [ 'linkdate' ]] = $l ;
861 // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125')
862 // Sort order is: older articles first.
863 // e.g. print_r($mydb->filterDay('20120125'));
864 public function filterDay ( $day )
867 foreach ( $this- > links
as $l )
869 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
874 // Filter by smallHash.
875 // Only 1 article is returned.
876 public function filterSmallHash ( $smallHash )
879 foreach ( $this- > links
as $l )
881 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
883 $filtered [ $l [ 'linkdate' ]] = $l ;
890 // Returns the list of all tags
891 // Output: associative array key=tags, value=0
892 public function allTags ()
895 foreach ( $this- > links
as $link )
896 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
897 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
898 arsort ( $tags ); // Sort tags by usage (most used tag first)
902 // Returns the list of days containing articles (oldest first)
903 // Output: An array containing days (in format YYYYMMDD).
904 public function days ()
907 foreach ( array_keys ( $this- > links
) as $day )
909 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
911 $linkdays = array_keys ( $linkdays );
917 // ------------------------------------------------------------------------------------------
918 // Output the last N links in RSS 2.0 format.
921 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
923 // $usepermalink : If true, use permalink instead of final link.
924 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
925 // Also enabled through a config option
926 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
929 $query = $_SERVER [ "QUERY_STRING" ];
930 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
931 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
933 // If cached was not found (or not usable), then read the database and build the response:
934 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if user it not logged in).
936 // Optionally filter the results:
937 $linksToDisplay = array ();
938 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
939 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
940 else $linksToDisplay = $LINKSDB ;
941 $nblinksToDisplay = 50 ; // Number of links to display.
942 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
944 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
947 $pageaddr = htmlspecialchars ( indexUrl ());
948 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
949 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
950 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
951 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
953 echo '<!-- PubSubHubbub Discovery -->' ;
954 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
955 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
956 echo '<!-- End Of PubSubHubbub Discovery -->' ;
959 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
960 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
962 $link = $linksToDisplay [ $keys [ $i ]];
963 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
964 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
965 $absurl = htmlspecialchars ( $link [ 'url' ]);
966 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
967 if ( $usepermalinks === true )
968 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
970 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
971 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
972 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
974 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
977 // Add permalink in description
978 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
979 // If user wants permalinks first, put the final link in description
980 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
981 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
982 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
985 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
987 $cache- > cache ( ob_get_contents ());
992 // ------------------------------------------------------------------------------------------
993 // Output the last N links in ATOM format.
996 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
998 // $usepermalink : If true, use permalink instead of final link.
999 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
1000 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
1003 $query = $_SERVER [ "QUERY_STRING" ];
1004 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
1005 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1006 // If cached was not found (or not usable), then read the database and build the response:
1008 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1011 // Optionally filter the results:
1012 $linksToDisplay = array ();
1013 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1014 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1015 else $linksToDisplay = $LINKSDB ;
1016 $nblinksToDisplay = 50 ; // Number of links to display.
1017 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
1019 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
1022 $pageaddr = htmlspecialchars ( indexUrl ());
1026 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
1027 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
1029 $link = $linksToDisplay [ $keys [ $i ]];
1030 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
1031 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
1032 $latestDate = max ( $latestDate , $iso8601date );
1033 $absurl = htmlspecialchars ( $link [ 'url' ]);
1034 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1035 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1036 if ( $usepermalinks === true )
1037 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1039 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1040 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1042 // Add permalink in description
1043 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1044 // If user wants permalinks first, put the final link in description
1045 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1046 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1048 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1049 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1051 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1052 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1054 $entries .= "</entry> \n " ;
1057 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1058 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1059 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1060 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1061 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1063 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1064 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1065 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1067 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1068 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1070 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1073 $cache- > cache ( ob_get_contents ());
1078 // ------------------------------------------------------------------------------------------
1079 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1080 // Gives the last 7 days (which have links).
1081 // This RSS feed cannot be filtered.
1082 function showDailyRSS ()
1085 $query = $_SERVER [ "QUERY_STRING" ];
1086 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1087 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1088 // If cached was not found (or not usable), then read the database and build the response:
1089 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1091 /* Some Shaarlies may have very few links, so we need to look
1092 back in time (rsort()) until we have enough days ($nb_of_days).
1094 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1096 $nb_of_days = 7 ; // We take 7 days.
1099 foreach ( $linkdates as $linkdate )
1101 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1102 if ( strcmp ( $day , $today )< 0 )
1104 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1105 $days [ $day ][]= $linkdate ;
1107 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days?
1110 // Build the RSS feed.
1111 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1112 $pageaddr = htmlspecialchars ( indexUrl ());
1113 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1114 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1115 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1117 foreach ( $days as $day => $linkdates ) // For each day.
1119 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1120 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1121 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1122 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1123 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1125 // Build the HTML body of this RSS entry.
1129 // We pre-format some fields for proper output.
1130 foreach ( $linkdates as $linkdate )
1132 $l = $LINKSDB [ $linkdate ];
1133 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1134 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1135 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
1136 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1137 $links [ $linkdate ]= $l ;
1139 // Then build the HTML for this day:
1141 $tpl- > assign ( 'links' , $links );
1142 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1144 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1147 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1149 $cache- > cache ( ob_get_contents ());
1155 function showDaily ()
1157 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1160 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1161 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1163 $days = $LINKSDB- > days ();
1164 $i = array_search ( $day , $days );
1165 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1170 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1171 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1174 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1175 // We pre-format some fields for proper output.
1176 foreach ( $linksToDisplay as $key => $link )
1178 $taglist = explode ( ' ' , $link [ 'tags' ]);
1179 uasort ( $taglist , 'strcasecmp' );
1180 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1181 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1182 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1183 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
1186 /* We need to spread the articles on 3 columns.
1187 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1188 so I manually spread entries with a simple method: I roughly evaluate the
1189 height of a div according to title and description length.
1191 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1192 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1193 foreach ( $linksToDisplay as $key => $link )
1195 // Roughly estimate length of entry (by counting characters)
1196 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1197 // Description: 836 characters gives roughly 342 pixel height.
1198 // This is not perfect, but it's usually OK.
1199 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1200 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1201 // Then put in column which is the less filled:
1202 $smallest = min ( $fill ); // find smallest value in array.
1203 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1204 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1205 $fill [ $index ] +
= $length ;
1207 $PAGE = new pageBuilder
;
1208 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1209 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1210 $PAGE- > assign ( 'cols' , $columns );
1211 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1212 $PAGE- > assign ( 'previousday' , $previousday );
1213 $PAGE- > assign ( 'nextday' , $nextday );
1214 $PAGE- > renderPage ( 'daily' );
1219 // ------------------------------------------------------------------------------------------
1220 // Render HTML page (according to URL parameters and user rights)
1221 function renderPage ()
1223 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1225 // -------- Display login form.
1226 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1228 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1229 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1230 $PAGE = new pageBuilder
;
1231 $PAGE- > assign ( 'token' , $token );
1232 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1233 $PAGE- > renderPage ( 'loginform' );
1236 // -------- User wants to logout.
1237 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1241 header ( 'Location: ?' );
1245 // -------- Picture wall
1246 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1248 // Optionally filter the results:
1250 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1251 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1252 else $links = $LINKSDB ;
1254 $linksToDisplay = array ();
1256 // Get only links which have a thumbnail.
1257 foreach ( $links as $link )
1259 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1260 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1261 if ( $thumb != '' ) // Only output links which have a thumbnail.
1263 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1264 $linksToDisplay []= $link ; // Add to array.
1267 $PAGE = new pageBuilder
;
1268 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1269 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1270 $PAGE- > renderPage ( 'picwall' );
1274 // -------- Tag cloud
1275 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1277 $tags = $LINKSDB- > allTags ();
1278 // We sort tags alphabetically, then choose a font size according to count.
1279 // First, find max value.
1280 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1283 foreach ( $tags as $key => $value )
1284 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1286 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1288 $PAGE = new pageBuilder
;
1289 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1290 $PAGE- > assign ( 'tags' , $tagList );
1291 $PAGE- > renderPage ( 'tagcloud' );
1295 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1296 if ( isset ( $_GET [ 'addtag' ]))
1298 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1299 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1300 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1302 // Check if this tag is already in the search query and ignore it if it is.
1303 // Each tag is always separated by a space
1304 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1306 foreach ( $current_tags as $value ) {
1307 if ( $value === $_GET [ 'addtag' ]) {
1312 // Append the tag if necessary
1313 if ( empty ( $params [ 'searchtags' ])) {
1314 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1317 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1320 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1321 header ( 'Location: ?' . http_build_query ( $params ));
1325 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1326 if ( isset ( $_GET [ 'removetag' ]))
1328 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1329 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1330 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1331 if ( isset ( $params [ 'searchtags' ]))
1333 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1334 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1335 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1336 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1338 header ( 'Location: ?' . http_build_query ( $params ));
1342 // -------- User wants to change the number of links per page (linksperpage=...)
1343 if ( isset ( $_GET [ 'linksperpage' ]))
1345 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1346 // Make sure the referrer is Shaarli itself.
1348 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1349 $referer = $_SERVER [ 'HTTP_REFERER' ];
1350 header ( 'Location: ' . $referer );
1354 // -------- User wants to see only private links (toggle)
1355 if ( isset ( $_GET [ 'privateonly' ]))
1357 if ( empty ( $_SESSION [ 'privateonly' ]))
1359 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1363 unset ( $_SESSION [ 'privateonly' ]); // See all links
1365 // Make sure the referrer is Shaarli itself.
1367 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1368 $referer = $_SERVER [ 'HTTP_REFERER' ];
1369 header ( 'Location: ' . $referer );
1373 // -------- Handle other actions allowed for non-logged in users:
1376 // User tries to post new link but is not logged in:
1377 // Show login screen, then redirect to ?post=...
1378 if ( isset ( $_GET [ 'post' ]))
1380 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.
1384 // Same case as above except that user tried to access ?do=addlink without being logged in
1385 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1386 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1387 header ( 'Location: ?do=login&post=' );
1391 $PAGE = new pageBuilder
;
1392 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1393 $PAGE- > renderPage ( 'linklist' );
1394 exit ; // Never remove this one! All operations below are reserved for logged in user.
1397 // -------- All other functions are reserved for the registered user:
1399 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1400 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1402 $PAGE = new pageBuilder
;
1403 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1404 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1405 $PAGE- > renderPage ( 'tools' );
1409 // -------- User wants to change his/her password.
1410 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1412 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1413 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1415 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1417 // Make sure old password is correct.
1418 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1419 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1420 // Save new password
1421 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1422 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1424 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1427 else // show the change password form.
1429 $PAGE = new pageBuilder
;
1430 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1431 $PAGE- > assign ( 'token' , getToken ());
1432 $PAGE- > renderPage ( 'changepassword' );
1437 // -------- User wants to change configuration
1438 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1440 if (! empty ( $_POST [ 'title' ]) )
1442 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1444 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1445 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1446 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1447 $GLOBALS [ 'timezone' ] = $tz ;
1448 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1449 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1450 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1451 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1452 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1453 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1454 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1455 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1457 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1460 else // Show the configuration form.
1462 $PAGE = new pageBuilder
;
1463 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1464 $PAGE- > assign ( 'token' , getToken ());
1465 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1466 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1467 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1468 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1469 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1470 $PAGE- > renderPage ( 'configure' );
1475 // -------- User wants to rename a tag or delete it
1476 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1478 if ( empty ( $_POST [ 'fromtag' ]))
1480 $PAGE = new pageBuilder
;
1481 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1482 $PAGE- > assign ( 'token' , getToken ());
1483 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1484 $PAGE- > renderPage ( 'changetag' );
1487 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1490 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1492 $needle = trim ( $_POST [ 'fromtag' ]);
1493 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1494 foreach ( $linksToAlter as $key => $value )
1496 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1497 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1498 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1499 $LINKSDB [ $key ]= $value ;
1501 $LINKSDB- > savedb (); // Save to disk.
1502 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1507 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1509 $needle = trim ( $_POST [ 'fromtag' ]);
1510 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1511 foreach ( $linksToAlter as $key => $value )
1513 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1514 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1515 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1516 $LINKSDB [ $key ]= $value ;
1518 $LINKSDB- > savedb (); // Save to disk.
1519 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1524 // -------- User wants to add a link without using the bookmarklet: Show form.
1525 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1527 $PAGE = new pageBuilder
;
1528 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1529 $PAGE- > renderPage ( 'addlink' );
1533 // -------- User clicked the "Save" button when editing a link: Save link to database.
1534 if ( isset ( $_POST [ 'save_edit' ]))
1536 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1537 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1538 $linkdate = $_POST [ 'lf_linkdate' ];
1539 $url = trim ( $_POST [ 'lf_url' ]);
1540 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1541 $url = 'http://' . $url ;
1542 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1543 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1544 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1545 $LINKSDB [ $linkdate ] = $link ;
1546 $LINKSDB- > savedb (); // Save to disk.
1549 // If we are called from the bookmarklet, we must close the popup:
1550 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1551 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1552 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1553 if ( strstr ( $returnurl , "do=addlink" )) { $returnurl
= '?' ; } //if we come from ?do=addlink, set returnurl to homepage instead
1554 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1558 // -------- User clicked the "Cancel" button when editing a link.
1559 if ( isset ( $_POST [ 'cancel_edit' ]))
1561 // If we are called from the bookmarklet, we must close the popup:
1562 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1563 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1564 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1565 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1569 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1570 if ( isset ( $_POST [ 'delete_link' ]))
1572 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1573 // We do not need to ask for confirmation:
1574 // - confirmation is handled by JavaScript
1575 // - we are protected from XSRF by the token.
1576 $linkdate = $_POST [ 'lf_linkdate' ];
1577 unset ( $LINKSDB [ $linkdate ]);
1578 $LINKSDB- > savedb (); // save to disk
1580 // If we are called from the bookmarklet, we must close the popup:
1581 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1582 // Pick where we're going to redirect
1583 // =============================================================
1584 // Basically, we can't redirect to where we were previously if it was a permalink
1585 // or an edit_link, because it would 404.
1587 // - / : nothing in $_GET, redirect to self
1588 // - /?page : redirect to self
1589 // - /?searchterm : redirect to self (there might be other links)
1590 // - /?searchtags : redirect to self
1591 // - /permalink : redirect to / (the link does not exist anymore)
1592 // - /?edit_link : redirect to / (the link does not exist anymore)
1593 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1594 // redirect is not satisfied, and only then redirect to /
1597 if ( count ( $_GET ) == 0 ||
1598 isset ( $_GET [ 'page' ]) ||
1599 isset ( $_GET [ 'searchterm' ]) ||
1600 isset ( $_GET [ 'searchtags' ])) {
1602 if ( isset ( $_POST [ 'returnurl' ])) {
1603 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1606 if ( $location === "?" &&
1607 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1608 $location = $_SERVER [ 'HTTP_REFERER' ];
1612 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1616 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1617 if ( isset ( $_GET [ 'edit_link' ]))
1619 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1620 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1621 $PAGE = new pageBuilder
;
1622 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1623 $PAGE- > assign ( 'link' , $link );
1624 $PAGE- > assign ( 'link_is_new' , false );
1625 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1626 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1627 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1628 $PAGE- > renderPage ( 'editlink' );
1632 // -------- User want to post a new link: Display link edit form.
1633 if ( isset ( $_GET [ 'post' ]))
1638 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1639 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' , '/[ \? &]utm_campaign=[^&]*/' , '/[ \? &]utm_medium=[^&]*/' , '/#xtor=RSS-[^&]*/' , '/[ \? &]fb_[^&]*/' , '/[ \? &]__scoop[^&]*/' , '/#tk\.rss_all \? /' , '/[ \? &]action_ref_map=[^&]*/' , '/[ \? &]action_type_map=[^&]*/' , '/[ \? &]action_object_map=[^&]*/' );
1640 foreach ( $annoyingpatterns as $pattern )
1642 $url = preg_replace ( $pattern , "" , $url );
1645 $link_is_new = false ;
1646 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1649 $link_is_new = true ; // This is a new link
1650 $linkdate = strval ( date ( 'Ymd_His' ));
1651 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1652 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1653 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1654 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1655 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1656 // 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.)
1657 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1659 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1660 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1661 if ( strpos ( $status , '200 OK' )!== false )
1663 // Look for charset in html header.
1664 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1666 // If found, extract encoding.
1667 if (! empty ( $meta [ 0 ]))
1669 // Get encoding specified in header.
1670 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1671 // If charset not found, use utf-8.
1672 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1674 else { $html_charset
= 'utf-8' ; }
1677 $title = html_extract_title ( $data );
1680 // Re-encode title in utf-8 if necessary.
1681 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1685 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1687 $url = '?' . smallHash ( $linkdate );
1690 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1693 $PAGE = new pageBuilder
;
1694 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1695 $PAGE- > assign ( 'link' , $link );
1696 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1697 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1698 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1699 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1700 $PAGE- > renderPage ( 'editlink' );
1704 // -------- Export as Netscape Bookmarks HTML file.
1705 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1707 if ( empty ( $_GET [ 'what' ]))
1709 $PAGE = new pageBuilder
;
1710 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1711 $PAGE- > renderPage ( 'export' );
1714 $exportWhat = $_GET [ 'what' ];
1715 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1717 header ( 'Content-Type: text/html; charset=utf-8' );
1718 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1719 $currentdate = date ( 'Y/m/d H:i:s' );
1721 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1722 <!-- This is an automatically generated file.
1723 It will be read and overwritten.
1725 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1726 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1727 <TITLE>Bookmarks</TITLE>
1730 foreach ( $LINKSDB as $link )
1732 if ( $exportWhat == 'all' ||
1733 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1734 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1736 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1737 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1738 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1739 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1745 // -------- User is uploading a file for import
1746 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1748 // If file is too big, some form field may be missing.
1749 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1751 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1752 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>' ;
1755 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1760 // -------- Show upload/import dialog:
1761 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1763 $PAGE = new pageBuilder
;
1764 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1765 $PAGE- > assign ( 'token' , getToken ());
1766 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1767 $PAGE- > renderPage ( 'import' );
1771 // -------- Otherwise, simply display search form and links:
1772 $PAGE = new pageBuilder
;
1773 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1774 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1775 $PAGE- > renderPage ( 'linklist' );
1779 // -----------------------------------------------------------------------------------------------
1780 // Process the import file form.
1781 function importFile ()
1783 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1784 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1785 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1786 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1787 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1788 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1789 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1794 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1796 // Then import the bookmarks.
1797 if ( $type == 'netscape' )
1799 // This is a standard Netscape-style bookmark file.
1800 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1801 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1803 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1804 $d = explode ( '<DD>' , $html );
1805 if ( startswith ( $d [ 0 ], '<A ' ))
1807 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1808 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1809 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1810 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1812 foreach ( $matches as $m )
1814 $attr = $m [ 1 ]; $value = $m [ 2 ];
1815 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1816 elseif ( $attr == 'ADD_DATE' )
1818 $raw_add_date = intval ( $value );
1819 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1821 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1822 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1824 if ( $link [ 'url' ]!= '' )
1826 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1827 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1829 { // Link not in database, let's import it...
1830 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1832 // Make sure date/time is not already used by another link.
1833 // (Some bookmark files have several different links with the same ADD_DATE)
1834 // We increment date by 1 second until we find a date which is not used in DB.
1835 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1836 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1837 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1838 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1841 else // Link already present in database.
1844 { // If overwrite is required, we import link data, except date/time.
1845 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1846 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1856 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1860 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1864 // -----------------------------------------------------------------------------------------------
1865 // Template for the list of links (<div id="linklist">)
1866 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1867 function buildLinkList ( $PAGE , $LINKSDB )
1869 // ---- Filter link database according to parameters
1870 $linksToDisplay = array ();
1873 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1875 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1876 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1877 $search_type = 'fulltext' ;
1879 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1881 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1882 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1883 $search_type = 'tags' ;
1885 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1887 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1888 if ( count ( $linksToDisplay )== 0 )
1890 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1891 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1892 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1895 $search_type = 'permalink' ;
1898 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1900 // Option: Show only private links
1901 if (! empty ( $_SESSION [ 'privateonly' ]))
1904 foreach ( $linksToDisplay as $linkdate => $link )
1906 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1908 $linksToDisplay = $tmp ;
1911 // ---- Handle paging.
1912 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1913 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1914 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1916 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1918 // If there is only a single link, we change on-the-fly the title of the page.
1919 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1921 // Select articles according to paging.
1922 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1923 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1924 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1925 $page = ( $page < 1 ? 1 : $page );
1926 $page = ( $page > $pagecount ? $pagecount : $page );
1927 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1928 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1929 $linkDisp = array (); // Links to display
1930 while ( $i < $end && $i < count ( $keys ))
1932 $link = $linksToDisplay [ $keys [ $i ]];
1933 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1934 $title = $link [ 'title' ];
1935 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1936 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1937 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1938 $taglist = explode ( ' ' , $link [ 'tags' ]);
1939 uasort ( $taglist , 'strcasecmp' );
1940 $link [ 'taglist' ]= $taglist ;
1942 if ( $link [ "url" ][ 0 ] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this.
1943 strlen ( $link [ "url" ]) === 7 ) {
1944 $link [ "url" ] = indexUrl () . $link [ "url" ];
1947 $linkDisp [ $keys [ $i ]] = $link ;
1951 // Compute paging navigation
1952 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1953 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1955 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1956 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1958 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1960 // Fill all template fields.
1961 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1962 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1963 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1964 $PAGE- > assign ( 'page_current' , $page );
1965 $PAGE- > assign ( 'page_max' , $pagecount );
1966 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1967 $PAGE- > assign ( 'search_type' , $search_type );
1968 $PAGE- > assign ( 'search_crits' , $search_crits );
1969 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1970 $PAGE- > assign ( 'token' , $token );
1971 $PAGE- > assign ( 'links' , $linkDisp );
1975 // Compute the thumbnail for a link.
1977 // With a link to the original URL.
1978 // Understands various services (youtube.com...)
1979 // Input: $url = URL for which the thumbnail must be found.
1980 // $href = if provided, this URL will be followed instead of $url
1981 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1982 // Some of them may be missing.
1983 // Return an empty array if no thumbnail available.
1984 function computeThumbnail ( $url , $href = false )
1986 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1987 if ( $href == false ) $href = $url ;
1989 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1990 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1991 // ^^^^^^^^^^^ ^^^^^^^^^^^
1992 $domain = parse_url ( $url , PHP_URL_HOST
);
1993 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1995 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1996 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1997 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1999 if ( $domain == 'youtu.be' ) // Youtube short links
2001 $path = parse_url ( $url , PHP_URL_PATH
);
2002 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
2003 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
2005 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
2007 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
2008 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
2009 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
2012 if ( $domain == 'imgur.com' )
2014 $path = parse_url ( $url , PHP_URL_PATH
);
2015 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
2016 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
2017 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2018 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
2019 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2021 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
2022 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2024 if ( $domain == 'i.imgur.com' )
2026 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
2027 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
2028 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2030 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
2032 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
2034 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
2035 return array ( 'src' => $thumburl ,
2036 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
2039 if ( endsWith ( $domain , '.imageshack.us' ))
2041 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2042 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2044 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
2045 return array ( 'src' => $thumburl ,
2046 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
2050 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2051 // So we deport the thumbnail generation in order not to slow down page generation
2052 // (and we also cache the thumbnail)
2054 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2056 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
2057 || $domain == 'vimeo.com'
2058 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
2059 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
2062 if ( $domain == 'vimeo.com' )
2063 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
2064 $path = parse_url ( $url , PHP_URL_PATH
);
2065 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
2067 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2068 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
2069 $path = parse_url ( $url , PHP_URL_PATH
);
2070 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
2072 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2073 { // Make sure this TED URL points to a video (/talks/...)
2074 $path = parse_url ( $url , PHP_URL_PATH
);
2075 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
2077 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2078 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2079 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2082 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2083 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2084 // But using the extension will do.
2085 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2086 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2088 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2089 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2090 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2092 return array (); // No thumbnail.
2097 // Returns the HTML code to display a thumbnail for a link
2098 // with a link to the original URL.
2099 // Understands various services (youtube.com...)
2100 // Input: $url = URL for which the thumbnail must be found.
2101 // $href = if provided, this URL will be followed instead of $url
2102 // Returns '' if no thumbnail available.
2103 function thumbnail ( $url , $href = false )
2105 $t = computeThumbnail ( $url , $href );
2106 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2108 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2109 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2110 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2111 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2112 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2117 // Returns the HTML code to display a thumbnail for a link
2118 // for the picture wall (using lazy image loading)
2119 // Understands various services (youtube.com...)
2120 // Input: $url = URL for which the thumbnail must be found.
2121 // $href = if provided, this URL will be followed instead of $url
2122 // Returns '' if no thumbnail available.
2123 function lazyThumbnail ( $url , $href = false )
2125 $t = computeThumbnail ( $url , $href );
2126 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2128 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2131 $html .= '<img class="b-lazy" src="#" data-src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2133 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2134 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2135 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2136 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2139 // No-JavaScript fallback.
2140 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2141 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2142 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2143 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2144 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2145 $html .= '></noscript></a>' ;
2151 // -----------------------------------------------------------------------------------------------
2153 // This function should NEVER be called if the file data/config.php exists.
2156 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2157 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2160 // This part makes sure sessions works correctly.
2161 // (Because on some hosts, session.save_path may not be set correctly,
2162 // or we may not have write access to it.)
2163 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2164 { // Step 2: Check if data in session is correct.
2165 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2166 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2167 echo 'It currently points to ' . session_save_path (). '<br>' ;
2168 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>' ;
2169 echo '<br><a href="?">Click to try again.</a></pre>' ;
2172 if (! isset ( $_SESSION [ 'session_tested' ]))
2173 { // Step 1 : Try to store data in session and reload page.
2174 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2175 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2177 if ( isset ( $_GET [ 'test_session' ]))
2178 { // Step 3: Sessions are OK. Remove test parameter from URL.
2179 header ( 'Location: ' . indexUrl ());
2183 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2186 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2187 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2188 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2189 $GLOBALS [ 'timezone' ] = $tz ;
2190 // Everything is ok, let's create config file.
2191 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2192 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2193 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2194 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2195 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2197 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2201 // Display config form:
2202 list ( $timezone_form , $timezone_js ) = templateTZform ();
2203 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2205 $PAGE = new pageBuilder
;
2206 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2207 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2208 $PAGE- > renderPage ( 'install' );
2212 // Generates the timezone selection form and JavaScript.
2213 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2214 // Output: array(html,js)
2215 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2216 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2217 function templateTZform ( $ptz = false )
2219 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2221 // Try to split the provided timezone.
2222 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2223 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2225 // Display config form:
2226 $timezone_form = '' ;
2228 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2229 // We split the list in continents/cities.
2230 $continents = array ();
2232 foreach ( timezone_identifiers_list () as $tz )
2234 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2235 $spos = strpos ( $tz , '/' );
2238 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2239 $continents [ $continent ]= 1 ;
2240 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2241 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2244 $continents_html = '' ;
2245 $continents = array_keys ( $continents );
2246 foreach ( $continents as $continent )
2247 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2248 $cities_html = $cities [ $pcontinent ];
2249 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2250 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2251 $timezone_js = "<script>" ;
2252 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2253 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2254 $timezone_js .= "</script>" ;
2255 return array ( $timezone_form , $timezone_js );
2257 return array ( '' , '' );
2260 // Tells if a timezone is valid or not.
2261 // If not valid, returns false.
2262 // If system does not support timezone list, returns false.
2263 function isTZvalid ( $continent , $city )
2265 $tz = $continent . '/' . $city ;
2266 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2268 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2273 if (! function_exists ( 'json_encode' )) {
2274 function json_encode ( $data ) {
2275 switch ( $type = gettype ( $data )) {
2279 return ( $data ? 'true' : 'false' );
2285 return '"' . addslashes ( $data ) . '"' ;
2287 $data = get_object_vars ( $data );
2289 $output_index_count = 0 ;
2290 $output_indexed = array ();
2291 $output_associative = array ();
2292 foreach ( $data as $key => $value ) {
2293 $output_indexed [] = json_encode ( $value );
2294 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2295 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2296 $output_index_count = NULL ;
2299 if ( $output_index_count !== NULL ) {
2300 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2302 return ' {' . implode(',', $output_associative) . '} ' ;
2305 return '' ; // Not supported
2310 // Re-write configuration file according to globals.
2311 // Requires some $GLOBALS to be set (login,hash,salt,title).
2312 // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu.
2313 // (otherwise, the function simply returns.)
2314 function writeConfig ()
2316 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2317 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2318 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2319 $config .= ' $GLOBALS [ \' titleLink \' ]=' . var_export ( $GLOBALS [ 'titleLink' ], true ). '; ' ;
2320 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2321 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2322 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2323 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2324 $config .= ' $GLOBALS [ \' config \' ][ \' ENABLE_RSS_PERMALINKS \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ], true ). '; ' ;
2325 $config .= ' $GLOBALS [ \' config \' ][ \' ENABLE_UPDATECHECK \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ], true ). '; ' ;
2327 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2329 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>' ;
2334 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2335 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2336 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2337 This function is called by passing the URL:
2338 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2339 [URL] is the URL of the link (e.g. a flickr page)
2340 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2341 The function below will fetch the image from the webservice and store it in the cache.
2343 function genThumbnail ()
2345 // Make sure the parameters in the URL were generated by us.
2346 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2347 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2349 // Let's see if we don't already have the image for this URL in the cache.
2350 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2351 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2352 { // We have the thumbnail, just serve it:
2353 header ( 'Content-Type: image/jpeg' );
2354 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2357 // We may also serve a blank image (if service did not respond)
2358 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2359 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2361 header ( 'Content-Type: image/gif' );
2362 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2366 // Otherwise, generate the thumbnail.
2367 $url = $_GET [ 'url' ];
2368 $domain = parse_url ( $url , PHP_URL_HOST
);
2370 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2372 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2373 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2375 // Is this a link to an image, or to a flickr page ?
2377 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2378 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2379 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2380 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2382 else // This is a flickr page (html)
2384 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2385 if ( strpos ( $httpstatus , '200 OK' )!== false )
2387 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2388 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2389 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2391 // In albums (and some other pages), the link rel="image_src" is not provided,
2392 // but flickr provides:
2393 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2396 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2397 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2403 { // Let's download the image.
2404 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2405 if ( strpos ( $httpstatus , '200 OK' )!== false )
2407 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2408 header ( 'Content-Type: image/jpeg' );
2415 elseif ( $domain == 'vimeo.com' )
2417 // This is more complex: we have to perform a HTTP request, then parse the result.
2418 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2419 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2420 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2421 if ( strpos ( $httpstatus , '200 OK' )!== false )
2423 $t = unserialize ( $data );
2424 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2425 // Then we download the image and serve it to our client.
2426 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2427 if ( strpos ( $httpstatus , '200 OK' )!== false )
2429 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2430 header ( 'Content-Type: image/jpeg' );
2437 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2439 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2440 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2441 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2442 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2443 if ( strpos ( $httpstatus , '200 OK' )!== false )
2445 // Extract the link to the thumbnail
2446 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2447 if (! empty ( $matches [ 1 ]))
2448 { // Let's download the image.
2449 $imageurl = $matches [ 1 ];
2450 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2451 if ( strpos ( $httpstatus , '200 OK' )!== false )
2453 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2454 file_put_contents ( $filepath , $data ); // Save image to cache.
2455 if ( resizeImage ( $filepath ))
2457 header ( 'Content-Type: image/jpeg' );
2458 echo file_get_contents ( $filepath );
2466 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2468 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2469 // http://xkcd.com/327/
2470 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2471 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2472 if ( strpos ( $httpstatus , '200 OK' )!== false )
2474 // Extract the link to the thumbnail
2475 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2476 if (! empty ( $matches [ 1 ]))
2477 { // Let's download the image.
2478 $imageurl = $matches [ 1 ];
2479 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2480 if ( strpos ( $httpstatus , '200 OK' )!== false )
2482 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2483 file_put_contents ( $filepath , $data ); // Save image to cache.
2484 if ( resizeImage ( $filepath ))
2486 header ( 'Content-Type: image/jpeg' );
2487 echo file_get_contents ( $filepath );
2497 // For all other domains, we try to download the image and make a thumbnail.
2498 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2499 if ( strpos ( $httpstatus , '200 OK' )!== false )
2501 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2502 file_put_contents ( $filepath , $data ); // Save image to cache.
2503 if ( resizeImage ( $filepath ))
2505 header ( 'Content-Type: image/jpeg' );
2506 echo file_get_contents ( $filepath );
2513 // Otherwise, return an empty image (8x8 transparent gif)
2514 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2515 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2516 header ( 'Content-Type: image/gif' );
2520 // Make a thumbnail of the image (to width: 120 pixels)
2521 // Returns true if success, false otherwise.
2522 function resizeImage ( $filepath )
2524 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2526 // Trick: some stupid people rename GIF as JPEG... or else.
2527 // So we really try to open each image type whatever the extension is.
2528 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2530 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2531 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2532 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2533 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2536 $ystart = 0 ; $yheight = $h ;
2537 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2538 $nw = 120 ; // Desired width
2539 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2541 $im2 = imagecreatetruecolor ( $nw , $nh );
2542 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2543 imageinterlace ( $im2 , true ); // For progressive JPEG.
2544 $tempname = $filepath . '_TEMP.jpg' ;
2545 imagejpeg ( $im2 , $tempname , 90 );
2549 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2553 // Invalidate caches when the database is changed or the user logs out.
2554 // (e.g. tags cache).
2555 function invalidateCaches ()
2557 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2558 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2561 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2562 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2563 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2564 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2565 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2566 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];