]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
2 // Shaarli 0.5.3 - 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
7 // -----------------------------------------------------------------------------------------------
9 // Set 'UTC' as the default timezone if it is not defined in php.ini
10 // See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone
11 if ( date_default_timezone_get () == '' ) {
12 date_default_timezone_set ( 'UTC' );
15 // -----------------------------------------------------------------------------------------------
16 // Hardcoded parameter (These parameters can be overwritten by editing the file /data/config.php)
17 // You should not touch any code below (or at your own risks!)
18 $GLOBALS [ 'config' ][ 'DATADIR' ] = 'data' ; // Data subdirectory
19 $GLOBALS [ 'config' ][ 'CONFIG_FILE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/config.php' ; // Configuration file (user login/password)
20 $GLOBALS [ 'config' ][ 'DATASTORE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/datastore.php' ; // Data storage file.
21 $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ] = 20 ; // Default links per page.
22 $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/ipbans.php' ; // File storage for failures and bans.
23 $GLOBALS [ 'config' ][ 'BAN_AFTER' ] = 4 ; // Ban IP after this many failures.
24 $GLOBALS [ 'config' ][ 'BAN_DURATION' ] = 1800 ; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
25 $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ] = false ; // If true, anyone can add/edit/delete links without having to login
26 $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] = false ; // If true, the moment when links were saved are not shown to users that are not logged in.
27 $GLOBALS [ 'config' ][ 'SHOW_ATOM' ] = false ; // If true, an extra "ATOM feed" button will be displayed in the toolbar
28 $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ] = true ; // Enable thumbnails in links.
29 $GLOBALS [ 'config' ][ 'CACHEDIR' ] = 'cache' ; // Cache directory for thumbnails for SLOW services (like flickr)
30 $GLOBALS [ 'config' ][ 'PAGECACHE' ] = 'pagecache' ; // Page cache directory.
31 $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ] = true ; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage.
32 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
33 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
34 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
35 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
36 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
37 // Note: You must have publisher.php in the same directory as Shaarli index.php
38 $GLOBALS [ 'config' ][ 'ARCHIVE_ORG' ] = false ; // For each link, add a link to an archived version on archive.org
39 $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.
40 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = false ;
41 // -----------------------------------------------------------------------------------------------
42 define ( 'shaarli_version' , '0.5.3' );
43 // http://server.com/x/shaarli --> /shaarli/
44 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
47 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
48 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
49 ini_set ( 'post_max_size' , '16M' );
50 ini_set ( 'upload_max_filesize' , '16M' );
51 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
52 //error_reporting(-1); // See all errors (for debugging only)
55 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
56 require_once $GLOBALS [ 'config' ][ 'CONFIG_FILE' ];
60 require_once 'application/Cache.php' ;
61 require_once 'application/CachedPage.php' ;
62 require_once 'application/LinkDB.php' ;
63 require_once 'application/TimeZone.php' ;
64 require_once 'application/Url.php' ;
65 require_once 'application/Utils.php' ;
66 require_once 'application/Config.php' ;
68 // Ensure the PHP version is supported
70 checkPHPVersion ( '5.3' , PHP_VERSION
);
71 } catch ( Exception
$e ) {
72 header ( 'Content-Type: text/plain; charset=utf-8' );
73 echo $e- > getMessage ();
77 // Force cookie path (but do not change lifetime)
78 $cookie = session_get_cookie_params ();
80 if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ]) != '/' ) {
81 $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
83 // Set default cookie expiration and path.
84 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]);
85 // Set session parameters on server side.
86 // If the user does not access any page within this time, his/her session is considered expired.
87 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // in seconds.
88 // Use cookies to store session.
89 ini_set ( 'session.use_cookies' , 1 );
90 // Force cookies for session (phpsessionID forbidden in URL).
91 ini_set ( 'session.use_only_cookies' , 1 );
92 // Prevent PHP form using sessionID in URL if cookies are disabled.
93 ini_set ( 'session.use_trans_sid' , false );
95 // Regenerate session id if invalid or not defined in cookie.
96 if ( isset ( $_COOKIE [ 'shaarli' ]) && ! is_session_id_valid ( $_COOKIE [ 'shaarli' ])) {
97 $_COOKIE [ 'shaarli' ] = uniqid ();
99 session_name ( 'shaarli' );
100 // Start session if needed (Some server auto-start sessions).
101 if ( session_id () == '' ) {
105 include "inc/rain.tpl.class.php" ; //include Rain TPL
106 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
107 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
109 ob_start (); // Output buffering for the page cache.
112 // In case stupid admin has left magic_quotes enabled in php.ini:
113 if ( get_magic_quotes_gpc ())
115 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
116 $_POST = array_map ( 'stripslashes_deep' , $_POST );
117 $_GET = array_map ( 'stripslashes_deep' , $_GET );
118 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
121 // Prevent caching on client side or proxy: (yes, it's ugly)
122 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
123 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
124 header ( "Cache-Control: post-check=0, pre-check=0" , false );
125 header ( "Pragma: no-cache" );
127 // Directories creations (Note that your web host may require different rights than 705.)
128 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
130 // Handling of old config file which do not have the new parameters.
131 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . escape ( indexUrl ());
132 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
133 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
134 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
135 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
136 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
137 // I really need to rewrite Shaarli with a proper configuation manager.
139 // Run config screen if first run:
140 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) {
144 $GLOBALS [ 'title' ] = ! empty ( $GLOBALS [ 'title' ]) ? escape ( $GLOBALS [ 'title' ]) : '' ;
145 $GLOBALS [ 'titleLink' ] = ! empty ( $GLOBALS [ 'titleLink' ]) ? escape ( $GLOBALS [ 'titleLink' ]) : '' ;
146 $GLOBALS [ 'redirector' ] = ! empty ( $GLOBALS [ 'redirector' ]) ? escape ( $GLOBALS [ 'redirector' ]) : '' ;
148 // a token depending of deployment salt, user password, and the current ip
149 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
151 autoLocale (); // Sniff browser language and set date format accordingly.
152 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
154 //==================================================================================================
155 // Checking session state (i.e. is the user still logged in)
156 //==================================================================================================
158 function setup_login_state () {
159 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
160 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
161 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
162 $userIsLoggedIn = true ;
164 if (! isset ( $GLOBALS [ 'login' ])) {
165 $userIsLoggedIn = false ; // Shaarli is not configured yet.
166 $loginFailure = true ;
168 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
169 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
173 $userIsLoggedIn = true ;
175 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
176 if ( empty ( $_SESSION [ 'uid' ]) ||
177 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
178 time () >= $_SESSION [ 'expires_on' ])
181 $userIsLoggedIn = false ;
182 $loginFailure = true ;
184 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
185 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
188 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
190 if (! $loginFailure ) {
191 $userIsLoggedIn = true ;
194 return $userIsLoggedIn ;
196 $userIsLoggedIn = setup_login_state ();
198 // Checks if an update is available for Shaarli.
199 // (at most once a day, and only for registered user.)
200 // Output: '' = no new version.
201 // other= the available version.
202 function checkUpdate ()
204 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
205 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
207 // Get latest version number at most once a day.
208 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
210 $version = shaarli_version
;
211 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
212 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
213 // If failed, never mind. We don't want to bother the user with that.
214 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
217 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
218 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
223 // -----------------------------------------------------------------------------------------------
225 function logm ( $message )
227 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
228 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
231 // In a string, converts URLs to clickable links.
232 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
233 function text2clickable ( $url )
235 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
236 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
239 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
240 // even in the absence of <pre> (This is used in description to keep text formatting)
241 function keepMultipleSpaces ( $text )
243 return str_replace ( ' ' , ' ' , $text );
246 // ------------------------------------------------------------------------------------------
247 // Sniff browser language to display dates in the right format automatically.
248 // (Note that is may not work on your server if the corresponding local is not installed.)
249 function autoLocale ()
251 $attempts = array ( 'en_US' ); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
252 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
253 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
254 if ( preg_match ( '/([a-z] {2} )-?([a-z] {2} )?/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) {
255 $loc = $matches [ 1 ] . (! empty ( $matches [ 2 ]) ? '_' . strtoupper ( $matches [ 2 ]) : '' );
256 $attempts = array ( $loc . '.UTF-8' , $loc , str_replace ( '_' , '-' , $loc ). '.UTF-8' , str_replace ( '_' , '-' , $loc ),
257 $loc . '_' . strtoupper ( $loc ). '.UTF-8' , $loc . '_' . strtoupper ( $loc ),
258 $loc . '_' . $loc . '.UTF-8' , $loc . '_' . $loc , $loc . '-' . strtoupper ( $loc ). '.UTF-8' ,
259 $loc . '-' . strtoupper ( $loc ), $loc . '-' . $loc . '.UTF-8' , $loc . '-' . $loc );
262 setlocale ( LC_TIME
, $attempts ); // LC_TIME = Set local for date/time format only.
265 // ------------------------------------------------------------------------------------------
266 // PubSubHubbub protocol support (if enabled) [UNTESTED]
267 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
268 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
271 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
273 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
275 indexUrl (). '?do=atom' ,
278 $p- > publish_update ( $topic_url );
282 // ------------------------------------------------------------------------------------------
283 // Session management
285 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
288 $ip = $_SERVER [ "REMOTE_ADDR" ];
289 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
290 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
291 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
295 function fillSessionInfo () {
296 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
297 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
298 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
299 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
302 // Check that user/password is correct.
303 function check_auth ( $login , $password )
305 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
306 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
307 { // Login/password is correct.
309 logm ( 'Login successful' );
312 logm ( 'Login failed for user ' . $login );
316 // Returns true if the user is logged in.
317 function isLoggedIn ()
319 global $userIsLoggedIn ;
320 return $userIsLoggedIn ;
325 if ( isset ( $_SESSION )) {
326 unset ( $_SESSION [ 'uid' ]);
327 unset ( $_SESSION [ 'ip' ]);
328 unset ( $_SESSION [ 'username' ]);
329 unset ( $_SESSION [ 'privateonly' ]);
331 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
335 // ------------------------------------------------------------------------------------------
336 // Brute force protection system
337 // Several consecutive failed logins will ban the IP address for 30 minutes.
338 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 ?>" );
339 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
340 // Signal a failed login. Will ban the IP if too many failures:
341 function ban_loginFailed ()
343 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
344 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
345 $gb [ 'FAILURES' ][ $ip ] ++
;
346 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
348 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
349 logm ( 'IP address banned from login' );
351 $GLOBALS [ 'IPBANS' ] = $gb ;
352 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
355 // Signals a successful login. Resets failed login counter.
356 function ban_loginOk ()
358 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
359 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
360 $GLOBALS [ 'IPBANS' ] = $gb ;
361 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
364 // Checks if the user CAN login. If 'true', the user can try to login.
365 function ban_canLogin ()
367 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
368 if ( isset ( $gb [ 'BANS' ][ $ip ]))
370 // User is banned. Check if the ban has expired:
371 if ( $gb [ 'BANS' ][ $ip ]<= time ())
372 { // Ban expired, user can try to login again.
374 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
375 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
376 return true ; // Ban has expired, user can login.
378 return false ; // User is banned.
380 return true ; // User is not banned.
383 // ------------------------------------------------------------------------------------------
384 // Process login form: Check if login/password is correct.
385 if ( isset ( $_POST [ 'login' ]))
387 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
388 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
389 { // Login/password is OK.
391 // If user wants to keep the session cookie even after the browser closes:
392 if (! empty ( $_POST [ 'longlastingsession' ]))
394 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
395 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
396 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
398 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
399 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
400 // Note: Never forget the trailing slash on the cookie path!
401 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
403 else // Standard session expiration (=when browser closes)
405 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
406 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
407 session_regenerate_id ( true );
410 // Optional redirect after login:
411 if ( isset ( $_GET [ 'post' ])) {
412 $uri = '?post=' . urlencode ( $_GET [ 'post' ]);
413 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
414 if (! empty ( $_GET [ $param ])) {
415 $uri .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
418 header ( 'Location: ' . $uri );
422 if ( isset ( $_GET [ 'edit_link' ])) {
423 header ( 'Location: ?edit_link=' . escape ( $_GET [ 'edit_link' ]));
427 if ( isset ( $_POST [ 'returnurl' ])) {
428 // Prevent loops over login screen.
429 if ( strpos ( $_POST [ 'returnurl' ], 'do=login' ) === false ) {
430 header ( 'Location: ' . escape ( $_POST [ 'returnurl' ]));
434 header ( 'Location: ?' ); exit ;
440 if ( isset ( $_GET [ 'post' ])) {
441 $redir = '?post=' . urlencode ( $_GET [ 'post' ]);
442 foreach ( array ( 'description' , 'source' , 'title' ) as $param ) {
443 if (! empty ( $_GET [ $param ])) {
444 $redir .= '&' . $param . '=' . urlencode ( $_GET [ $param ]);
448 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
453 // ------------------------------------------------------------------------------------------
454 // Misc utility functions:
456 // Returns the server URL (including port and http/https), without path.
457 // e.g. "http://myserver.com:8080"
458 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
461 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
462 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
463 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
466 // Returns the absolute URL of current script, without the query.
467 // (e.g. http://sebsauvage.net/links/)
470 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
471 // If the script is named 'index.php', we remove it (for better looking URLs,
472 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
473 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
474 return serverUrl () . $scriptname ;
477 // Returns the absolute URL of current script, WITH the query.
478 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
481 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
484 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
485 function return_bytes ( $val )
487 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
490 case 'g' : $val *= 1024 ;
491 case 'm' : $val *= 1024 ;
492 case 'k' : $val *= 1024 ;
497 // Try to determine max file size for uploads (POST).
498 // Returns an integer (in bytes)
499 function getMaxFileSize ()
501 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
502 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
503 // Return the smaller of two:
504 $maxsize = min ( $size1 , $size2 );
505 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
509 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
510 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
511 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
512 function linkdate2timestamp ( $linkdate )
514 if ( strcmp ( $linkdate , '_000000' ) !== 0 || ! $linkdate ){
516 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
517 return mktime ( $h , $m , $s , $M , $D , $Y );
522 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
523 (used to build the pubDate attribute in RSS feed.) */
524 function linkdate2rfc822 ( $linkdate )
526 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
529 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
530 (used to build the updated tags in ATOM feed.) */
531 function linkdate2iso8601 ( $linkdate )
533 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
536 // Parse HTTP response headers and return an associative array.
537 function http_parse_headers_shaarli ( $headers )
540 foreach ( $headers as $header )
542 $i = strpos ( $header , ': ' );
545 $key = substr ( $header , 0 , $i );
546 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
554 Input: $url : URL to get (http://...)
555 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
556 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
557 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
559 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
560 if (strpos($httpstatus,'200 OK')!==false)
561 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
563 echo 'There was an error: '.htmlspecialchars($httpstatus)
565 function getHTTP ( $url , $timeout = 30 )
569 $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
570 $context = stream_context_create ( $options );
571 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
572 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
573 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
574 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
575 return array ( $httpStatus , $responseHeaders , $data );
577 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
579 return array ( $e- > getMessage (), '' , '' );
583 // Extract title from an HTML document.
584 // (Returns an empty string if not found.)
585 function html_extract_title ( $html )
587 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
590 // ------------------------------------------------------------------------------------------
591 // Token management for XSRF protection
592 // Token should be used in any form which acts on data (create,update,delete,import...).
593 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
598 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
599 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
603 // Tells if a token is OK. Using this function will destroy the token.
605 function tokenOk ( $token )
607 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
609 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
610 return true ; // Token is OK.
612 return false ; // Wrong token, or already used.
615 // ------------------------------------------------------------------------------------------
616 /* This class is in charge of building the final page.
617 (This is basically a wrapper around RainTPL which pre-fills some fields.)
619 p.assign('myfield','myvalue');
620 p.renderPage('mytemplate');
625 private $tpl ; // RainTPL template
627 function __construct ()
632 private function initialize ()
634 $this- > tpl
= new RainTPL
;
635 $this- > tpl
-> assign ( 'newversion' , escape ( checkUpdate ()));
636 $this- > tpl
-> assign ( 'feedurl' , escape ( indexUrl ()));
637 $searchcrits = '' ; // Search criteria
638 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
639 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
640 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
641 $this- > tpl
-> assign ( 'source' , indexUrl ());
642 $this- > tpl
-> assign ( 'version' , shaarli_version
);
643 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
644 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
645 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
646 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
647 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
648 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
649 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
653 // The following assign() method is basically the same as RainTPL (except that it's lazy)
654 public function assign ( $what , $where )
656 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
657 $this- > tpl
-> assign ( $what , $where );
660 // Render a specific page (using a template).
661 // e.g. pb.renderPage('picwall')
662 public function renderPage ( $page )
664 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
665 $this- > tpl
-> draw ( $page );
669 // ------------------------------------------------------------------------------------------
670 // Output the last N links in RSS 2.0 format.
673 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
675 // $usepermalink : If true, use permalink instead of final link.
676 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
677 // Also enabled through a config option
678 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
681 $query = $_SERVER [ "QUERY_STRING" ];
682 $cache = new CachedPage (
683 $GLOBALS [ 'config' ][ 'PAGECACHE' ],
685 startsWith ( $query , 'do=rss' ) && ! isLoggedIn ()
687 $cached = $cache- > cachedVersion ();
688 if (! empty ( $cached )) {
693 // If cached was not found (or not usable), then read the database and build the response:
694 $LINKSDB = new LinkDB (
695 $GLOBALS [ 'config' ][ 'DATASTORE' ],
696 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
697 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
699 // Read links from database (and filter private links if user it not logged in).
701 // Optionally filter the results:
702 $linksToDisplay = array ();
703 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
704 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
705 else $linksToDisplay = $LINKSDB ;
707 $nblinksToDisplay = 50 ; // Number of links to display.
708 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
710 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
713 $pageaddr = escape ( indexUrl ());
714 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
715 echo '<channel><title>' . $GLOBALS [ 'title' ]. '</title><link>' . $pageaddr . '</link>' ;
716 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
717 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
719 echo '<!-- PubSubHubbub Discovery -->' ;
720 echo '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
721 echo '<link rel="self" href="' . $pageaddr . '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
722 echo '<!-- End Of PubSubHubbub Discovery -->' ;
725 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
726 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
728 $link = $linksToDisplay [ $keys [ $i ]];
729 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
730 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
731 $absurl = $link [ 'url' ];
732 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
733 if ( $usepermalinks === true )
734 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
736 echo '<item><title>' . $link [ 'title' ]. '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
737 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . escape ( $rfc822date ). "</pubDate> \n " ;
738 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
740 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . $pageaddr
. '">' . $tag
. '</category>' . " \n " ; }
743 // Add permalink in description
744 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
745 // If user wants permalinks first, put the final link in description
746 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
747 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
748 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
751 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
753 $cache- > cache ( ob_get_contents ());
758 // ------------------------------------------------------------------------------------------
759 // Output the last N links in ATOM format.
762 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
764 // $usepermalink : If true, use permalink instead of final link.
765 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
766 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
769 $query = $_SERVER [ "QUERY_STRING" ];
770 $cache = new CachedPage (
771 $GLOBALS [ 'config' ][ 'PAGECACHE' ],
773 startsWith ( $query , 'do=atom' ) && ! isLoggedIn ()
775 $cached = $cache- > cachedVersion ();
776 if (! empty ( $cached )) {
781 // If cached was not found (or not usable), then read the database and build the response:
782 // Read links from database (and filter private links if used it not logged in).
783 $LINKSDB = new LinkDB (
784 $GLOBALS [ 'config' ][ 'DATASTORE' ],
785 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
786 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
789 // Optionally filter the results:
790 $linksToDisplay = array ();
791 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
792 else if (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
793 else $linksToDisplay = $LINKSDB ;
795 $nblinksToDisplay = 50 ; // Number of links to display.
796 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
798 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
801 $pageaddr = escape ( indexUrl ());
805 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
806 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
808 $link = $linksToDisplay [ $keys [ $i ]];
809 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
810 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
811 $latestDate = max ( $latestDate , $iso8601date );
812 $absurl = $link [ 'url' ];
813 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
814 $entries .= '<entry><title>' . $link [ 'title' ]. '</title>' ;
815 if ( $usepermalinks === true )
816 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
818 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
819 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . escape ( $iso8601date ). '</updated>' ;
821 // Add permalink in description
822 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
823 // If user wants permalinks first, put the final link in description
824 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
825 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
827 $entries .= '<content type="html"><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ]))). $descriptionlink . "]]></content> \n " ;
828 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
830 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
831 { $entries
.= '<category scheme="' . $pageaddr
. '" term="' . $tag
. '" />' . " \n " ; }
833 $entries .= "</entry> \n " ;
836 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
837 $feed .= '<title>' . $GLOBALS [ 'title' ]. '</title>' ;
838 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . escape ( $latestDate ). '</updated>' ;
839 $feed .= '<link rel="self" href="' . escape ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
840 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
842 $feed .= '<!-- PubSubHubbub Discovery -->' ;
843 $feed .= '<link rel="hub" href="' . escape ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
844 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
846 $feed .= '<author><name>' . $pageaddr . '</name><uri>' . $pageaddr . '</uri></author>' ;
847 $feed .= '<id>' . $pageaddr . '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
849 $feed .= '</feed><!-- Cached version of ' . escape ( pageUrl ()). ' -->' ;
852 $cache- > cache ( ob_get_contents ());
857 // ------------------------------------------------------------------------------------------
858 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
859 // Gives the last 7 days (which have links).
860 // This RSS feed cannot be filtered.
861 function showDailyRSS () {
863 $query = $_SERVER [ "QUERY_STRING" ];
864 $cache = new CachedPage (
865 $GLOBALS [ 'config' ][ 'PAGECACHE' ],
867 startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ()
869 $cached = $cache- > cachedVersion ();
870 if (! empty ( $cached )) {
875 // If cached was not found (or not usable), then read the database and build the response:
876 // Read links from database (and filter private links if used it not logged in).
877 $LINKSDB = new LinkDB (
878 $GLOBALS [ 'config' ][ 'DATASTORE' ],
879 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
880 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
883 /* Some Shaarlies may have very few links, so we need to look
884 back in time (rsort()) until we have enough days ($nb_of_days).
886 $linkdates = array ();
887 foreach ( $LINKSDB as $linkdate => $value ) {
888 $linkdates [] = $linkdate ;
891 $nb_of_days = 7 ; // We take 7 days.
892 $today = Date ( 'Ymd' );
895 foreach ( $linkdates as $linkdate ) {
896 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
897 if ( strcmp ( $day , $today ) < 0 ) {
898 if ( empty ( $days [ $day ])) {
899 $days [ $day ] = array ();
901 $days [ $day ][] = $linkdate ;
904 if ( count ( $days ) > $nb_of_days ) {
905 break ; // Have we collected enough days?
909 // Build the RSS feed.
910 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
911 $pageaddr = escape ( indexUrl ());
912 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
914 echo '<title>Daily - ' . $GLOBALS [ 'title' ] . '</title>' ;
915 echo '<link>' . $pageaddr . '</link>' ;
916 echo '<description>Daily shared links</description>' ;
917 echo '<language>en-en</language>' ;
918 echo '<copyright>' . $pageaddr . '</copyright>' . PHP_EOL
;
921 foreach ( $days as $day => $linkdates ) {
922 $daydate = linkdate2timestamp ( $day . '_000000' ); // Full text date
923 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
924 $absurl = escape ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
926 // Build the HTML body of this RSS entry.
931 // We pre-format some fields for proper output.
932 foreach ( $linkdates as $linkdate ) {
933 $l = $LINKSDB [ $linkdate ];
934 $l [ 'formatedDescription' ] = nl2br ( keepMultipleSpaces ( text2clickable ( $l [ 'description' ])));
935 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
936 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
937 if ( startsWith ( $l [ 'url' ], '?' )) {
938 $l [ 'url' ] = indexUrl () . $l [ 'url' ]; // make permalink URL absolute
940 $links [ $linkdate ] = $l ;
943 // Then build the HTML for this day:
945 $tpl- > assign ( 'title' , $GLOBALS [ 'title' ]);
946 $tpl- > assign ( 'daydate' , $daydate );
947 $tpl- > assign ( 'absurl' , $absurl );
948 $tpl- > assign ( 'links' , $links );
949 $tpl- > assign ( 'rfc822date' , escape ( $rfc822date ));
950 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
952 echo $html . PHP_EOL
;
954 echo '</channel></rss><!-- Cached version of ' . escape ( pageUrl ()) . ' -->' ;
956 $cache- > cache ( ob_get_contents ());
964 $LINKSDB = new LinkDB (
965 $GLOBALS [ 'config' ][ 'DATASTORE' ],
966 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
967 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
970 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
971 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
973 $days = $LINKSDB- > days ();
974 $i = array_search ( $day , $days );
975 if ( $i === false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
980 if ( $i >= 1 ) $previousday = $days [ $i-1 ];
981 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
985 $linksToDisplay = $LINKSDB- > filterDay ( $day );
986 } catch ( Exception
$exc ) {
988 $linksToDisplay = array ();
991 // We pre-format some fields for proper output.
992 foreach ( $linksToDisplay as $key => $link )
995 $taglist = explode ( ' ' , $link [ 'tags' ]);
996 uasort ( $taglist , 'strcasecmp' );
997 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
998 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
999 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1000 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
1003 /* We need to spread the articles on 3 columns.
1004 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1005 so I manually spread entries with a simple method: I roughly evaluate the
1006 height of a div according to title and description length.
1008 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1009 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1010 foreach ( $linksToDisplay as $key => $link )
1012 // Roughly estimate length of entry (by counting characters)
1013 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1014 // Description: 836 characters gives roughly 342 pixel height.
1015 // This is not perfect, but it's usually OK.
1016 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1017 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1018 // Then put in column which is the less filled:
1019 $smallest = min ( $fill ); // find smallest value in array.
1020 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1021 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1022 $fill [ $index ] +
= $length ;
1024 $PAGE = new pageBuilder
;
1025 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1026 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1027 $PAGE- > assign ( 'cols' , $columns );
1028 $PAGE- > assign ( 'day' , linkdate2timestamp ( $day . '_000000' ));
1029 $PAGE- > assign ( 'previousday' , $previousday );
1030 $PAGE- > assign ( 'nextday' , $nextday );
1031 $PAGE- > renderPage ( 'daily' );
1036 // ------------------------------------------------------------------------------------------
1037 // Render HTML page (according to URL parameters and user rights)
1038 function renderPage ()
1040 $LINKSDB = new LinkDB (
1041 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1042 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1043 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1046 // -------- Display login form.
1047 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1049 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1050 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1051 $PAGE = new pageBuilder
;
1052 $PAGE- > assign ( 'token' , $token );
1053 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]): '' ));
1054 $PAGE- > renderPage ( 'loginform' );
1057 // -------- User wants to logout.
1058 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1060 invalidateCaches ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
1062 header ( 'Location: ?' );
1066 // -------- Picture wall
1067 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1069 // Optionally filter the results:
1071 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1072 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1073 else $links = $LINKSDB ;
1076 $linksToDisplay = array ();
1078 // Get only links which have a thumbnail.
1079 foreach ( $links as $link )
1081 $permalink = '?' . escape ( smallhash ( $link [ 'linkdate' ]));
1082 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1083 if ( $thumb != '' ) // Only output links which have a thumbnail.
1085 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1086 $linksToDisplay []= $link ; // Add to array.
1090 $PAGE = new pageBuilder
;
1091 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1092 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1093 $PAGE- > renderPage ( 'picwall' );
1097 // -------- Tag cloud
1098 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1100 $tags = $LINKSDB- > allTags ();
1102 // We sort tags alphabetically, then choose a font size according to count.
1103 // First, find max value.
1104 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1107 foreach ( $tags as $key => $value )
1108 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1110 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1112 $PAGE = new pageBuilder
;
1113 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1114 $PAGE- > assign ( 'tags' , $tagList );
1115 $PAGE- > renderPage ( 'tagcloud' );
1119 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1120 if ( isset ( $_GET [ 'addtag' ]))
1122 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1123 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1124 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1126 // Prevent redirection loop
1127 if ( isset ( $params [ 'addtag' ])) {
1128 unset ( $params [ 'addtag' ]);
1131 // Check if this tag is already in the search query and ignore it if it is.
1132 // Each tag is always separated by a space
1133 if ( isset ( $params [ 'searchtags' ])) {
1134 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1136 $current_tags = array ();
1139 foreach ( $current_tags as $value ) {
1140 if ( $value === $_GET [ 'addtag' ]) {
1145 // Append the tag if necessary
1146 if ( empty ( $params [ 'searchtags' ])) {
1147 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1150 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1153 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1154 header ( 'Location: ?' . http_build_query ( $params ));
1158 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1159 if ( isset ( $_GET [ 'removetag' ])) {
1160 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1161 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) {
1162 header ( 'Location: ?' );
1166 // In case browser does not send HTTP_REFERER
1167 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1169 // Prevent redirection loop
1170 if ( isset ( $params [ 'removetag' ])) {
1171 unset ( $params [ 'removetag' ]);
1174 if ( isset ( $params [ 'searchtags' ])) {
1175 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1176 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1177 if ( count ( $tags )== 0 ) {
1178 unset ( $params [ 'searchtags' ]);
1180 $params [ 'searchtags' ] = implode ( ' ' , $tags );
1182 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1184 header ( 'Location: ?' . http_build_query ( $params ));
1188 // -------- User wants to change the number of links per page (linksperpage=...)
1189 if ( isset ( $_GET [ 'linksperpage' ])) {
1190 if ( is_numeric ( $_GET [ 'linksperpage' ])) {
1191 $_SESSION [ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET [ 'linksperpage' ]));
1194 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'linksperpage' )));
1198 // -------- User wants to see only private links (toggle)
1199 if ( isset ( $_GET [ 'privateonly' ])) {
1200 if ( empty ( $_SESSION [ 'privateonly' ])) {
1201 $_SESSION [ 'privateonly' ] = 1 ; // See only private links
1203 unset ( $_SESSION [ 'privateonly' ]); // See all links
1206 header ( 'Location: ' . generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'privateonly' )));
1210 // -------- Handle other actions allowed for non-logged in users:
1213 // User tries to post new link but is not logged in:
1214 // Show login screen, then redirect to ?post=...
1215 if ( isset ( $_GET [ 'post' ]))
1217 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.
1221 // Same case as above except that user tried to access ?do=addlink without being logged in
1222 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1223 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1224 header ( 'Location: ?do=login&post=' );
1228 if ( isset ( $_GET [ 'edit_link' ])) {
1229 header ( 'Location: ?do=login&edit_link=' . escape ( $_GET [ 'edit_link' ]));
1233 $PAGE = new pageBuilder
;
1234 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1235 $PAGE- > renderPage ( 'linklist' );
1236 exit ; // Never remove this one! All operations below are reserved for logged in user.
1239 // -------- All other functions are reserved for the registered user:
1241 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1242 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1244 $PAGE = new pageBuilder
;
1245 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1246 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1247 $PAGE- > renderPage ( 'tools' );
1251 // -------- User wants to change his/her password.
1252 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1254 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1255 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1257 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1259 // Make sure old password is correct.
1260 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1261 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1262 // Save new password
1263 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1264 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1266 writeConfig ( $GLOBALS , isLoggedIn ());
1268 catch ( Exception
$e ) {
1270 'ERROR while writing config file after changing password.' . PHP_EOL
.
1274 // TODO: do not handle exceptions/errors in JS.
1275 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1278 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1281 else // show the change password form.
1283 $PAGE = new pageBuilder
;
1284 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1285 $PAGE- > assign ( 'token' , getToken ());
1286 $PAGE- > renderPage ( 'changepassword' );
1291 // -------- User wants to change configuration
1292 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1294 if (! empty ( $_POST [ 'title' ]) )
1296 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1298 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1299 if ( isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1300 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1301 $GLOBALS [ 'timezone' ] = $tz ;
1302 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1303 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1304 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1305 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1306 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1307 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1308 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1309 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'hidePublicLinks' ]);
1311 writeConfig ( $GLOBALS , isLoggedIn ());
1313 catch ( Exception
$e ) {
1315 'ERROR while writing config file after configuration update.' . PHP_EOL
.
1319 // TODO: do not handle exceptions/errors in JS.
1320 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ?do=tools \' ;</script>' ;
1323 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1326 else // Show the configuration form.
1328 $PAGE = new pageBuilder
;
1329 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1330 $PAGE- > assign ( 'token' , getToken ());
1331 $PAGE- > assign ( 'title' , empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] );
1332 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] );
1333 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ( $GLOBALS [ 'timezone' ]);
1334 $PAGE- > assign ( 'timezone_form' , $timezone_form );
1335 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1336 $PAGE- > renderPage ( 'configure' );
1341 // -------- User wants to rename a tag or delete it
1342 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1344 if ( empty ( $_POST [ 'fromtag' ]))
1346 $PAGE = new pageBuilder
;
1347 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1348 $PAGE- > assign ( 'token' , getToken ());
1349 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1350 $PAGE- > renderPage ( 'changetag' );
1353 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1356 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1358 $needle = trim ( $_POST [ 'fromtag' ]);
1359 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1360 foreach ( $linksToAlter as $key => $value )
1362 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1363 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1364 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1365 $LINKSDB [ $key ]= $value ;
1367 $LINKSDB- > savedb ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]); // Save to disk.
1368 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1373 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1375 $needle = trim ( $_POST [ 'fromtag' ]);
1376 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1377 foreach ( $linksToAlter as $key => $value )
1379 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1380 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1381 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1382 $LINKSDB [ $key ]= $value ;
1384 $LINKSDB- > savedb ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]); // Save to disk.
1385 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1390 // -------- User wants to add a link without using the bookmarklet: Show form.
1391 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1393 $PAGE = new pageBuilder
;
1394 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1395 $PAGE- > renderPage ( 'addlink' );
1399 // -------- User clicked the "Save" button when editing a link: Save link to database.
1400 if ( isset ( $_POST [ 'save_edit' ]))
1402 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1403 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1404 $tags = implode ( ' ' , array_unique ( explode ( ' ' , $tags ))); // Remove duplicates.
1405 $linkdate = $_POST [ 'lf_linkdate' ];
1406 $url = trim ( $_POST [ 'lf_url' ]);
1407 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1408 $url = 'http://' . $url ;
1409 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1410 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1411 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1412 $LINKSDB [ $linkdate ] = $link ;
1413 $LINKSDB- > savedb ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]); // Save to disk.
1416 // If we are called from the bookmarklet, we must close the popup:
1417 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1418 $returnurl = ( ! empty ( $_POST [ 'returnurl' ]) ? escape ( $_POST [ 'returnurl' ]) : '?' );
1419 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1420 $location = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1421 header ( 'Location: ' . $location ); // After saving the link, redirect to the page the user was on.
1425 // -------- User clicked the "Cancel" button when editing a link.
1426 if ( isset ( $_POST [ 'cancel_edit' ]))
1428 // If we are called from the bookmarklet, we must close the popup:
1429 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1430 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1431 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1432 $returnurl = generateLocation ( $returnurl , $_SERVER [ 'HTTP_HOST' ], array ( 'addlink' , 'post' , 'edit_link' ));
1433 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1437 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1438 if ( isset ( $_POST [ 'delete_link' ]))
1440 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1441 // We do not need to ask for confirmation:
1442 // - confirmation is handled by JavaScript
1443 // - we are protected from XSRF by the token.
1444 $linkdate = $_POST [ 'lf_linkdate' ];
1445 unset ( $LINKSDB [ $linkdate ]);
1446 $LINKSDB- > savedb ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]); // save to disk
1448 // If we are called from the bookmarklet, we must close the popup:
1449 if ( isset ( $_GET [ 'source' ]) && ( $_GET [ 'source' ]== 'bookmarklet' || $_GET [ 'source' ]== 'firefoxsocialapi' )) { echo '<script>self.close();</script>' ; exit ; }
1450 // Pick where we're going to redirect
1451 // =============================================================
1452 // Basically, we can't redirect to where we were previously if it was a permalink
1453 // or an edit_link, because it would 404.
1455 // - / : nothing in $_GET, redirect to self
1456 // - /?page : redirect to self
1457 // - /?searchterm : redirect to self (there might be other links)
1458 // - /?searchtags : redirect to self
1459 // - /permalink : redirect to / (the link does not exist anymore)
1460 // - /?edit_link : redirect to / (the link does not exist anymore)
1461 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1462 // redirect is not satisfied, and only then redirect to /
1465 if ( count ( $_GET ) == 0
1466 || isset ( $_GET [ 'page' ])
1467 || isset ( $_GET [ 'searchterm' ])
1468 || isset ( $_GET [ 'searchtags' ])
1470 if ( isset ( $_POST [ 'returnurl' ])) {
1471 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1473 $location = generateLocation ( $_SERVER [ 'HTTP_REFERER' ], $_SERVER [ 'HTTP_HOST' ], array ( 'delete_link' ));
1477 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1481 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1482 if ( isset ( $_GET [ 'edit_link' ]))
1484 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1485 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1486 $PAGE = new pageBuilder
;
1487 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1488 $PAGE- > assign ( 'link' , $link );
1489 $PAGE- > assign ( 'link_is_new' , false );
1490 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1491 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? escape ( $_SERVER [ 'HTTP_REFERER' ]) : '' ));
1492 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1493 $PAGE- > renderPage ( 'editlink' );
1497 // -------- User want to post a new link: Display link edit form.
1498 if ( isset ( $_GET [ 'post' ])) {
1499 $url = new Url ( $_GET [ 'post' ]);
1502 $link_is_new = false ;
1503 // Check if URL is not already in database (in this case, we will edit the existing link)
1504 $link = $LINKSDB- > getLinkFromUrl (( string ) $url );
1507 $link_is_new = true ;
1508 $linkdate = strval ( date ( 'Ymd_His' ));
1509 // Get title if it was provided in URL (by the bookmarklet).
1510 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] );
1511 // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1512 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]);
1513 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] );
1514 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 );
1515 // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
1516 if ( empty ( $title ) && strpos ( $url- > getScheme (), 'http' ) !== false ) {
1517 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1518 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1519 if ( strpos ( $status , '200 OK' )!== false ) {
1520 // Look for charset in html header.
1521 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1523 // If found, extract encoding.
1524 if (! empty ( $meta [ 0 ])) {
1525 // Get encoding specified in header.
1526 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1527 // If charset not found, use utf-8.
1528 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1531 $html_charset = 'utf-8' ;
1535 $title = html_extract_title ( $data );
1536 if (! empty ( $title )) {
1537 // Re-encode title in utf-8 if necessary.
1538 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1543 $url = '?' . smallHash ( $linkdate );
1547 'linkdate' => $linkdate ,
1549 'url' => ( string ) $url ,
1550 'description' => $description ,
1552 'private' => $private
1556 $PAGE = new pageBuilder
;
1557 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1558 $PAGE- > assign ( 'link' , $link );
1559 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1560 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1561 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1562 $PAGE- > assign ( 'source' ,( isset ( $_GET [ 'source' ]) ? $_GET [ 'source' ] : '' ));
1563 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1564 $PAGE- > renderPage ( 'editlink' );
1568 // -------- Export as Netscape Bookmarks HTML file.
1569 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1571 if ( empty ( $_GET [ 'what' ]))
1573 $PAGE = new pageBuilder
;
1574 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1575 $PAGE- > renderPage ( 'export' );
1578 $exportWhat = $_GET [ 'what' ];
1579 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1581 header ( 'Content-Type: text/html; charset=utf-8' );
1582 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1583 $currentdate = date ( 'Y/m/d H:i:s' );
1585 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1586 <!-- This is an automatically generated file.
1587 It will be read and overwritten.
1589 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1590 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1591 <TITLE>Bookmarks</TITLE>
1594 foreach ( $LINKSDB as $link )
1596 if ( $exportWhat == 'all' ||
1597 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1598 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1600 echo '<DT><A HREF="' . $link [ 'url' ]. '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1601 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . str_replace ( ' ' , ',' , $link [ 'tags' ]). '"' ;
1602 echo '>' . $link [ 'title' ]. "</A> \n " ;
1603 if ( $link [ 'description' ]!= '' ) echo '<DD>' . $link [ 'description' ]. " \n " ;
1609 // -------- User is uploading a file for import
1610 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1612 // If file is too big, some form field may be missing.
1613 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1615 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1616 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= \' ' . escape ( $returnurl ). ' \' ;</script>' ;
1619 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1624 // -------- Show upload/import dialog:
1625 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1627 $PAGE = new pageBuilder
;
1628 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1629 $PAGE- > assign ( 'token' , getToken ());
1630 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1631 $PAGE- > renderPage ( 'import' );
1635 // -------- Otherwise, simply display search form and links:
1636 $PAGE = new pageBuilder
;
1637 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1638 $PAGE- > renderPage ( 'linklist' );
1642 // -----------------------------------------------------------------------------------------------
1643 // Process the import file form.
1644 function importFile ()
1646 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1647 $LINKSDB = new LinkDB (
1648 $GLOBALS [ 'config' ][ 'DATASTORE' ],
1649 isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ],
1650 $GLOBALS [ 'config' ][ 'HIDE_PUBLIC_LINKS' ]
1652 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1653 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1654 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1655 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1656 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1661 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1663 // Then import the bookmarks.
1664 if ( $type == 'netscape' )
1666 // This is a standard Netscape-style bookmark file.
1667 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1668 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1670 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1671 $d = explode ( '<DD>' , $html );
1672 if ( startswith ( $d [ 0 ], '<A ' ))
1674 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1675 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1676 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1677 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1679 foreach ( $matches as $m )
1681 $attr = $m [ 1 ]; $value = $m [ 2 ];
1682 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1683 elseif ( $attr == 'ADD_DATE' )
1685 $raw_add_date = intval ( $value );
1686 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1688 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1689 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1691 if ( $link [ 'url' ]!= '' )
1693 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1694 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1696 { // Link not in database, let's import it...
1697 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1699 // Make sure date/time is not already used by another link.
1700 // (Some bookmark files have several different links with the same ADD_DATE)
1701 // We increment date by 1 second until we find a date which is not used in DB.
1702 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1703 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1704 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1705 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1708 else // Link already present in database.
1711 { // If overwrite is required, we import link data, except date/time.
1712 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1713 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1721 $LINKSDB- > savedb ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
1723 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1727 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1731 // -----------------------------------------------------------------------------------------------
1732 // Template for the list of links (<div id="linklist">)
1733 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1734 function buildLinkList ( $PAGE , $LINKSDB )
1736 // ---- Filter link database according to parameters
1737 $linksToDisplay = array ();
1740 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1742 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1743 $search_crits = escape ( trim ( $_GET [ 'searchterm' ]));
1744 $search_type = 'fulltext' ;
1746 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1748 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1749 $search_crits = explode ( ' ' , escape ( trim ( $_GET [ 'searchtags' ])));
1750 $search_type = 'tags' ;
1752 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1754 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1755 if ( count ( $linksToDisplay )== 0 )
1757 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1758 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1759 echo '<br>Would you mind <a href="?">clicking here</a>?' ;
1762 $search_type = 'permalink' ;
1765 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1768 // Option: Show only private links
1769 if (! empty ( $_SESSION [ 'privateonly' ]))
1772 foreach ( $linksToDisplay as $linkdate => $link )
1774 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1776 $linksToDisplay = $tmp ;
1779 // ---- Handle paging.
1780 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1781 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1782 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1784 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1786 // If there is only a single link, we change on-the-fly the title of the page.
1787 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1789 // Select articles according to paging.
1790 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1791 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1792 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1793 $page = ( $page < 1 ? 1 : $page );
1794 $page = ( $page > $pagecount ? $pagecount : $page );
1795 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1796 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1797 $linkDisp = array (); // Links to display
1798 while ( $i < $end && $i < count ( $keys ))
1800 $link = $linksToDisplay [ $keys [ $i ]];
1801 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( $link [ 'description' ])));
1802 $title = $link [ 'title' ];
1803 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1804 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1805 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1806 $taglist = explode ( ' ' , $link [ 'tags' ]);
1807 uasort ( $taglist , 'strcasecmp' );
1808 $link [ 'taglist' ]= $taglist ;
1810 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.
1811 strlen ( $link [ "url" ]) === 7 ) {
1812 $link [ "url" ] = indexUrl () . $link [ "url" ];
1815 $linkDisp [ $keys [ $i ]] = $link ;
1819 // Compute paging navigation
1820 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1821 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1823 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1824 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1826 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1828 // Fill all template fields.
1829 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1830 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1831 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1832 $PAGE- > assign ( 'page_current' , $page );
1833 $PAGE- > assign ( 'page_max' , $pagecount );
1834 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1835 $PAGE- > assign ( 'search_type' , $search_type );
1836 $PAGE- > assign ( 'search_crits' , $search_crits );
1837 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1838 $PAGE- > assign ( 'token' , $token );
1839 $PAGE- > assign ( 'links' , $linkDisp );
1840 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1844 // Compute the thumbnail for a link.
1846 // With a link to the original URL.
1847 // Understands various services (youtube.com...)
1848 // Input: $url = URL for which the thumbnail must be found.
1849 // $href = if provided, this URL will be followed instead of $url
1850 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1851 // Some of them may be missing.
1852 // Return an empty array if no thumbnail available.
1853 function computeThumbnail ( $url , $href = false )
1855 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1856 if ( $href == false ) $href = $url ;
1858 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1859 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1860 // ^^^^^^^^^^^ ^^^^^^^^^^^
1861 $domain = parse_url ( $url , PHP_URL_HOST
);
1862 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1864 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1865 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
1866 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1868 if ( $domain == 'youtu.be' ) // Youtube short links
1870 $path = parse_url ( $url , PHP_URL_PATH
);
1871 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
1872 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
1874 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
1876 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
1877 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
1878 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
1881 if ( $domain == 'imgur.com' )
1883 $path = parse_url ( $url , PHP_URL_PATH
);
1884 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
1885 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
1886 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1887 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
1888 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1890 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
1891 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1893 if ( $domain == 'i.imgur.com' )
1895 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1896 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
1897 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
1899 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1901 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
1903 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1904 return array ( 'src' => $thumburl ,
1905 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
1908 if ( endsWith ( $domain , '.imageshack.us' ))
1910 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1911 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1913 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
1914 return array ( 'src' => $thumburl ,
1915 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
1919 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1920 // So we deport the thumbnail generation in order not to slow down page generation
1921 // (and we also cache the thumbnail)
1923 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1925 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
1926 || $domain == 'vimeo.com'
1927 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
1928 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
1931 if ( $domain == 'vimeo.com' )
1932 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1933 $path = parse_url ( $url , PHP_URL_PATH
);
1934 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
1936 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
1937 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1938 $path = parse_url ( $url , PHP_URL_PATH
);
1939 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
1941 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
1942 { // Make sure this TED URL points to a video (/talks/...)
1943 $path = parse_url ( $url , PHP_URL_PATH
);
1944 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
1946 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1947 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1948 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1951 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1952 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1953 // But using the extension will do.
1954 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
1955 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
1957 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1958 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . $sign . '&url=' . urlencode ( $url ),
1959 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
1961 return array (); // No thumbnail.
1966 // Returns the HTML code to display a thumbnail for a link
1967 // with a link to the original URL.
1968 // Understands various services (youtube.com...)
1969 // Input: $url = URL for which the thumbnail must be found.
1970 // $href = if provided, this URL will be followed instead of $url
1971 // Returns '' if no thumbnail available.
1972 function thumbnail ( $url , $href = false )
1974 $t = computeThumbnail ( $url , $href );
1975 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1977 $html = '<a href="' . escape ( $t [ 'href' ]). '"><img src="' . escape ( $t [ 'src' ]). '"' ;
1978 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
1979 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
1980 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
1981 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
1986 // Returns the HTML code to display a thumbnail for a link
1987 // for the picture wall (using lazy image loading)
1988 // Understands various services (youtube.com...)
1989 // Input: $url = URL for which the thumbnail must be found.
1990 // $href = if provided, this URL will be followed instead of $url
1991 // Returns '' if no thumbnail available.
1992 function lazyThumbnail ( $url , $href = false )
1994 $t = computeThumbnail ( $url , $href );
1995 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
1997 $html = '<a href="' . escape ( $t [ 'href' ]). '">' ;
2000 $html .= '<img class="b-lazy" src="#" data-src="' . escape ( $t [ 'src' ]). '"' ;
2002 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2003 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2004 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2005 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2008 // No-JavaScript fallback.
2009 $html .= '<noscript><img src="' . escape ( $t [ 'src' ]). '"' ;
2010 if (! empty ( $t [ 'width' ])) $html .= ' width="' . escape ( $t [ 'width' ]). '"' ;
2011 if (! empty ( $t [ 'height' ])) $html .= ' height="' . escape ( $t [ 'height' ]). '"' ;
2012 if (! empty ( $t [ 'style' ])) $html .= ' style="' . escape ( $t [ 'style' ]). '"' ;
2013 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . escape ( $t [ 'alt' ]). '"' ;
2014 $html .= '></noscript></a>' ;
2020 // -----------------------------------------------------------------------------------------------
2022 // This function should NEVER be called if the file data/config.php exists.
2025 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2026 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2029 // This part makes sure sessions works correctly.
2030 // (Because on some hosts, session.save_path may not be set correctly,
2031 // or we may not have write access to it.)
2032 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2033 { // Step 2: Check if data in session is correct.
2034 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2035 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2036 echo 'It currently points to ' . session_save_path (). '<br>' ;
2037 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>' ;
2038 echo '<br><a href="?">Click to try again.</a></pre>' ;
2041 if (! isset ( $_SESSION [ 'session_tested' ]))
2042 { // Step 1 : Try to store data in session and reload page.
2043 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2044 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2046 if ( isset ( $_GET [ 'test_session' ]))
2047 { // Step 3: Sessions are OK. Remove test parameter from URL.
2048 header ( 'Location: ' . indexUrl ());
2052 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2055 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ])) {
2056 if ( isTimeZoneValid ( $_POST [ 'continent' ], $_POST [ 'city' ])) {
2057 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2060 $GLOBALS [ 'timezone' ] = $tz ;
2061 // Everything is ok, let's create config file.
2062 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2063 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2064 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2065 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . escape ( indexUrl ()) : $_POST [ 'title' ] );
2066 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2068 writeConfig ( $GLOBALS , isLoggedIn ());
2070 catch ( Exception
$e ) {
2072 'ERROR while writing config file after installation.' . PHP_EOL
.
2076 // TODO: do not handle exceptions/errors in JS.
2077 echo '<script>alert("' . $e- > getMessage () . '");document.location= \' ? \' ;</script>' ;
2080 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2084 // Display config form:
2085 list ( $timezone_form , $timezone_js ) = generateTimeZoneForm ();
2086 $timezone_html = '' ;
2087 if ( $timezone_form != '' ) {
2088 $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2091 $PAGE = new pageBuilder
;
2092 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2093 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2094 $PAGE- > renderPage ( 'install' );
2098 if (! function_exists ( 'json_encode' )) {
2099 function json_encode ( $data ) {
2100 switch ( $type = gettype ( $data )) {
2104 return ( $data ? 'true' : 'false' );
2110 return '"' . addslashes ( $data ) . '"' ;
2112 $data = get_object_vars ( $data );
2114 $output_index_count = 0 ;
2115 $output_indexed = array ();
2116 $output_associative = array ();
2117 foreach ( $data as $key => $value ) {
2118 $output_indexed [] = json_encode ( $value );
2119 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2120 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2121 $output_index_count = NULL ;
2124 if ( $output_index_count !== NULL ) {
2125 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2127 return ' {' . implode(',', $output_associative) . '} ' ;
2130 return '' ; // Not supported
2137 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2138 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2139 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2140 This function is called by passing the URL:
2141 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2142 [URL] is the URL of the link (e.g. a flickr page)
2143 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2144 The function below will fetch the image from the webservice and store it in the cache.
2146 function genThumbnail ()
2148 // Make sure the parameters in the URL were generated by us.
2149 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2150 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2152 // Let's see if we don't already have the image for this URL in the cache.
2153 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2154 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2155 { // We have the thumbnail, just serve it:
2156 header ( 'Content-Type: image/jpeg' );
2157 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2160 // We may also serve a blank image (if service did not respond)
2161 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2162 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2164 header ( 'Content-Type: image/gif' );
2165 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2169 // Otherwise, generate the thumbnail.
2170 $url = $_GET [ 'url' ];
2171 $domain = parse_url ( $url , PHP_URL_HOST
);
2173 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2175 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2176 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2178 // Is this a link to an image, or to a flickr page ?
2180 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2181 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2182 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2183 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2185 else // This is a flickr page (html)
2187 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2188 if ( strpos ( $httpstatus , '200 OK' )!== false )
2190 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2191 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2192 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2194 // In albums (and some other pages), the link rel="image_src" is not provided,
2195 // but flickr provides:
2196 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2199 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2200 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2206 { // Let's download the image.
2207 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2208 if ( strpos ( $httpstatus , '200 OK' )!== false )
2210 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2211 header ( 'Content-Type: image/jpeg' );
2218 elseif ( $domain == 'vimeo.com' )
2220 // This is more complex: we have to perform a HTTP request, then parse the result.
2221 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2222 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2223 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . escape ( $vid ). '.php' , 5 );
2224 if ( strpos ( $httpstatus , '200 OK' )!== false )
2226 $t = unserialize ( $data );
2227 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2228 // Then we download the image and serve it to our client.
2229 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2230 if ( strpos ( $httpstatus , '200 OK' )!== false )
2232 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2233 header ( 'Content-Type: image/jpeg' );
2240 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2242 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2243 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2244 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2245 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2246 if ( strpos ( $httpstatus , '200 OK' )!== false )
2248 // Extract the link to the thumbnail
2249 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2250 if (! empty ( $matches [ 1 ]))
2251 { // Let's download the image.
2252 $imageurl = $matches [ 1 ];
2253 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2254 if ( strpos ( $httpstatus , '200 OK' )!== false )
2256 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2257 file_put_contents ( $filepath , $data ); // Save image to cache.
2258 if ( resizeImage ( $filepath ))
2260 header ( 'Content-Type: image/jpeg' );
2261 echo file_get_contents ( $filepath );
2269 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2271 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2272 // http://xkcd.com/327/
2273 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2274 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2275 if ( strpos ( $httpstatus , '200 OK' )!== false )
2277 // Extract the link to the thumbnail
2278 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2279 if (! empty ( $matches [ 1 ]))
2280 { // Let's download the image.
2281 $imageurl = $matches [ 1 ];
2282 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2283 if ( strpos ( $httpstatus , '200 OK' )!== false )
2285 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2286 file_put_contents ( $filepath , $data ); // Save image to cache.
2287 if ( resizeImage ( $filepath ))
2289 header ( 'Content-Type: image/jpeg' );
2290 echo file_get_contents ( $filepath );
2300 // For all other domains, we try to download the image and make a thumbnail.
2301 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2302 if ( strpos ( $httpstatus , '200 OK' )!== false )
2304 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2305 file_put_contents ( $filepath , $data ); // Save image to cache.
2306 if ( resizeImage ( $filepath ))
2308 header ( 'Content-Type: image/jpeg' );
2309 echo file_get_contents ( $filepath );
2316 // Otherwise, return an empty image (8x8 transparent gif)
2317 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2318 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2319 header ( 'Content-Type: image/gif' );
2323 // Make a thumbnail of the image (to width: 120 pixels)
2324 // Returns true if success, false otherwise.
2325 function resizeImage ( $filepath )
2327 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2329 // Trick: some stupid people rename GIF as JPEG... or else.
2330 // So we really try to open each image type whatever the extension is.
2331 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2333 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2334 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2335 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2336 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2339 $ystart = 0 ; $yheight = $h ;
2340 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2341 $nw = 120 ; // Desired width
2342 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2344 $im2 = imagecreatetruecolor ( $nw , $nh );
2345 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2346 imageinterlace ( $im2 , true ); // For progressive JPEG.
2347 $tempname = $filepath . '_TEMP.jpg' ;
2348 imagejpeg ( $im2 , $tempname , 90 );
2352 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2357 mergeDeprecatedConfig ( $GLOBALS , isLoggedIn ());
2358 } catch ( Exception
$e ) {
2360 'ERROR while merging deprecated options.php file.' . PHP_EOL
.
2365 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2366 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2367 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2368 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2369 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2370 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];