]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
2 // Shaarli 0.0.45beta - Shaare your links...
3 // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net
4 // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
5 // Licence: http://www.opensource.org/licenses/zlib-license.php
6 // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x)
7 // -----------------------------------------------------------------------------------------------
8 // NEVER TRUST IN PHP.INI
9 // Some hosts do not define a default timezone in php.ini,
10 // so we have to do this for avoid the strict standard error.
11 date_default_timezone_set ( 'UTC' );
13 // -----------------------------------------------------------------------------------------------
14 // Hardcoded parameter (These parameters can be overwritten by creating the file /data/options.php)
15 $GLOBALS [ 'config' ][ 'DATADIR' ] = 'data' ; // Data subdirectory
16 $GLOBALS [ 'config' ][ 'CONFIG_FILE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/config.php' ; // Configuration file (user login/password)
17 $GLOBALS [ 'config' ][ 'DATASTORE' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/datastore.php' ; // Data storage file.
18 $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ] = 20 ; // Default links per page.
19 $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/ipbans.php' ; // File storage for failures and bans.
20 $GLOBALS [ 'config' ][ 'BAN_AFTER' ] = 4 ; // Ban IP after this many failures.
21 $GLOBALS [ 'config' ][ 'BAN_DURATION' ] = 1800 ; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
22 $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ] = false ; // If true, anyone can add/edit/delete links without having to login
23 $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] = false ; // If true, the moment when links were saved are not shown to users that are not logged in.
24 $GLOBALS [ 'config' ][ 'SHOW_ATOM' ] = false ; // If true, an extra "ATOM feed" button will be displayed in the toolbar
25 $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ] = true ; // Enable thumbnails in links.
26 $GLOBALS [ 'config' ][ 'CACHEDIR' ] = 'cache' ; // Cache directory for thumbnails for SLOW services (like flickr)
27 $GLOBALS [ 'config' ][ 'PAGECACHE' ] = 'pagecache' ; // Page cache directory.
28 $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ] = true ; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage.
29 $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ] = '' ; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
30 $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
31 $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
32 $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ] = $GLOBALS [ 'config' ][ 'DATADIR' ]. '/lastupdatecheck.txt' ; // For updates check of Shaarli.
33 $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
34 // Note: You must have publisher.php in the same directory as Shaarli index.php
35 $GLOBALS [ 'config' ][ 'ARCHIVE_ORG' ] = false ; // For each link, add a link to an archived version on archive.org
36 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ] = true ; // Enable RSS permalinks by default. This corresponds to the default behavior of shaarli before this was added as an option.
37 $GLOBALS [ 'config' ][ 'DISABLE_PUBLIC_LINKS' ] = false ;
38 // -----------------------------------------------------------------------------------------------
39 // You should not touch below (or at your own risks!)
40 // Optional config file.
41 if ( is_file ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' )) require ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/options.php' );
43 define ( 'shaarli_version' , '0.0.45beta' );
44 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in PHP code.
45 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in PHP code.
46 // http://server.com/x/shaarli --> /shaarli/
47 define ( 'WEB_PATH' , substr ( $_SERVER [ "REQUEST_URI" ], 0 , 1 +
strrpos ( $_SERVER [ "REQUEST_URI" ], '/' , 0 )));
49 // Force cookie path (but do not change lifetime)
50 $cookie = session_get_cookie_params ();
51 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
52 session_set_cookie_params ( $cookie [ 'lifetime' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set default cookie expiration and path.
54 // Set session parameters on server side.
55 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
56 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
57 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL).
58 ini_set ( 'session.use_trans_sid' , false ); // Prevent PHP form using sessionID in URL if cookies are disabled.
59 session_name ( 'shaarli' );
60 if ( session_id () == '' ) session_start (); // Start session if needed (Some server auto-start sessions).
63 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
64 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
65 ini_set ( 'post_max_size' , '16M' );
66 ini_set ( 'upload_max_filesize' , '16M' );
68 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
69 //error_reporting(-1); // See all errors (for debugging only)
71 include "inc/rain.tpl.class.php" ; //include Rain TPL
72 raintpl
:: $tpl_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TPL' ]; // template directory
73 raintpl
:: $cache_dir = $GLOBALS [ 'config' ][ 'RAINTPL_TMP' ]; // cache directory
75 ob_start (); // Output buffering for the page cache.
78 // In case stupid admin has left magic_quotes enabled in php.ini:
79 if ( get_magic_quotes_gpc ())
81 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
82 $_POST = array_map ( 'stripslashes_deep' , $_POST );
83 $_GET = array_map ( 'stripslashes_deep' , $_GET );
84 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
87 // Prevent caching on client side or proxy: (yes, it's ugly)
88 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
89 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
90 header ( "Cache-Control: post-check=0, pre-check=0" , false );
91 header ( "Pragma: no-cache" );
93 // Directories creations (Note that your web host may require different rights than 705.)
94 if (! is_writable ( realpath ( dirname ( __FILE__
)))) die ( '<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>' );
96 // Handling of old config file which do not have the new parameters.
97 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( indexUrl ());
98 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
99 if ( empty ( $GLOBALS [ 'redirector' ])) $GLOBALS [ 'redirector' ]= '' ;
100 if ( empty ( $GLOBALS [ 'disablesessionprotection' ])) $GLOBALS [ 'disablesessionprotection' ]= false ;
101 if ( empty ( $GLOBALS [ 'disablejquery' ])) $GLOBALS [ 'disablejquery' ]= false ;
102 if ( empty ( $GLOBALS [ 'privateLinkByDefault' ])) $GLOBALS [ 'privateLinkByDefault' ]= false ;
103 if ( empty ( $GLOBALS [ 'titleLink' ])) $GLOBALS [ 'titleLink' ]= '?' ;
104 // I really need to rewrite Shaarli with a proper configuation manager.
106 // Run config screen if first run:
107 if (! is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ])) install ();
109 require $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]; // Read login/password hash into $GLOBALS.
111 // a token depending of deployment salt, user password, and the current ip
112 define ( 'STAY_SIGNED_IN_TOKEN' , sha1 ( $GLOBALS [ 'hash' ]. $_SERVER [ "REMOTE_ADDR" ]. $GLOBALS [ 'salt' ]));
114 autoLocale (); // Sniff browser language and set date format accordingly.
115 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
117 //==================================================================================================
118 // Checking session state (i.e. is the user still logged in)
119 //==================================================================================================
121 function setup_login_state () {
122 $userIsLoggedIn = false ; // By default, we do not consider the user as logged in;
123 $loginFailure = false ; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
124 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) {
125 $userIsLoggedIn = true ;
127 if (! isset ( $GLOBALS [ 'login' ])) {
128 $userIsLoggedIn = false ; // Shaarli is not configured yet.
129 $loginFailure = true ;
131 if ( isset ( $_COOKIE [ 'shaarli_staySignedIn' ]) &&
132 $_COOKIE [ 'shaarli_staySignedIn' ]=== STAY_SIGNED_IN_TOKEN
&&
136 $userIsLoggedIn = true ;
138 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
139 if ( empty ( $_SESSION [ 'uid' ]) ||
140 ( $GLOBALS [ 'disablesessionprotection' ]== false && $_SESSION [ 'ip' ]!= allIPs ()) ||
141 time () >= $_SESSION [ 'expires_on' ])
144 $userIsLoggedIn = false ;
145 $loginFailure = true ;
147 if (! empty ( $_SESSION [ 'longlastingsession' ])) {
148 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
151 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
153 if (! $loginFailure ) {
154 $userIsLoggedIn = true ;
157 return $userIsLoggedIn ;
159 //==================================================================================================
160 $userIsLoggedIn = setup_login_state ();
161 //==================================================================================================
162 //==================================================================================================
165 function checkphpversion ()
167 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
169 header ( 'Content-Type: text/plain; charset=utf-8' );
170 echo 'Your PHP version is obsolete! Shaarli requires at least php 5.1.0, and thus cannot run. Sorry. Your PHP version has known security vulnerabilities and should be updated as soon as possible.' ;
175 // Checks if an update is available for Shaarli.
176 // (at most once a day, and only for registered user.)
177 // Output: '' = no new version.
178 // other= the available version.
179 function checkUpdate ()
181 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
182 if ( empty ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ])) return '' ; // Do not check if the user doesn't want to.
184 // Get latest version number at most once a day.
185 if (! is_file ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]) || ( filemtime ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ])< time ()-( $GLOBALS [ 'config' ][ 'UPDATECHECK_INTERVAL' ])))
187 $version = shaarli_version
;
188 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php' , 2 );
189 if ( strpos ( $httpstatus , '200 OK' )!== false ) $version = str_replace ( ' */ ?>' , '' , str_replace ( '<?php /* ' , '' , $data ));
190 // If failed, never mind. We don't want to bother the user with that.
191 file_put_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ], $version ); // touch file date
194 $newestversion = file_get_contents ( $GLOBALS [ 'config' ][ 'UPDATECHECK_FILENAME' ]);
195 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
200 // -----------------------------------------------------------------------------------------------
201 // Simple cache system (mainly for the RSS/ATOM feeds).
205 private $url ; // Full URL of the page to cache (typically the value returned by pageUrl())
206 private $shouldBeCached ; // boolean: Should this url be cached?
207 private $filename ; // Name of the cache file for this url.
210 $url = URL (typically the value returned by pageUrl())
211 $shouldBeCached = boolean. If false, the cache will be disabled.
213 public function __construct ( $url , $shouldBeCached )
216 $this- > filename
= $GLOBALS [ 'config' ][ 'PAGECACHE' ]. '/' . sha1 ( $url ). '.cache' ;
217 $this- > shouldBeCached
= $shouldBeCached ;
220 // If the page should be cached and a cached version exists,
221 // returns the cached version (otherwise, return null).
222 public function cachedVersion ()
224 if (! $this- > shouldBeCached
) return null ;
225 if ( is_file ( $this- > filename
)) { return file_get_contents ( $this
-> filename
); exit ; }
229 // Put a page in the cache.
230 public function cache ( $page )
232 if (! $this- > shouldBeCached
) return ;
233 file_put_contents ( $this- > filename
, $page );
236 // Purge the whole cache.
237 // (call with pageCache::purgeCache())
238 public static function purgeCache ()
240 if ( is_dir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]))
242 $handler = opendir ( $GLOBALS [ 'config' ][ 'PAGECACHE' ]);
243 if ( $handler !== false )
245 while (( $filename = readdir ( $handler ))!== false )
247 if ( endsWith ( $filename , '.cache' )) { unlink ( $GLOBALS
[ 'config' ][ 'PAGECACHE' ]. '/' . $filename
); }
257 // -----------------------------------------------------------------------------------------------
259 function logm ( $message )
261 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
262 file_put_contents ( $GLOBALS [ 'config' ][ 'DATADIR' ]. '/log.txt' , $t , FILE_APPEND
);
265 // Same as nl2br(), but escapes < and >
266 function nl2br_escaped ( $html )
268 return str_replace ( '>' , '>' , str_replace ( '<' , '<' , nl2br ( $html )));
271 /* Returns the small hash of a string, using RFC 4648 base64url format
272 e.g. smallHash('20111006_131924') --> yZH23w
274 - are unique (well, as unique as crc32, at last)
275 - are always 6 characters long.
276 - only use the following characters: a-z A-Z 0-9 - _ @
277 - are NOT cryptographically secure (they CAN be forged)
278 In Shaarli, they are used as a tinyurl-like link to individual entries.
280 function smallHash ( $text )
282 $t = rtrim ( base64_encode ( hash ( 'crc32' , $text , true )), '=' );
283 return strtr ( $t , '+/' , '-_' );
286 // In a string, converts URLs to clickable links.
287 // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
288 function text2clickable ( $url )
290 $redir = empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ];
291 return preg_replace ( '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si' , '<a href="' . $redir . ' $1" rel="nofollow"> $1 </a>' , $url );
294 // This function inserts where relevant so that multiple spaces are properly displayed in HTML
295 // even in the absence of <pre> (This is used in description to keep text formatting)
296 function keepMultipleSpaces ( $text )
298 return str_replace ( ' ' , ' ' , $text );
301 // ------------------------------------------------------------------------------------------
302 // Sniff browser language to display dates in the right format automatically.
303 // (Note that is may not work on your server if the corresponding local is not installed.)
304 function autoLocale ()
306 $attempts = array ( 'en_US' ); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
307 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
308 { // (It's a bit crude, but it works very well. Preferred language is always presented first.)
309 if ( preg_match ( '/([a-z] {2} )-?([a-z] {2} )?/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) {
310 $loc = $matches [ 1 ] . (! empty ( $matches [ 2 ]) ? '_' . strtoupper ( $matches [ 2 ]) : '' );
311 $attempts = array ( $loc , str_replace ( '_' , '-' , $loc ),
312 $loc . '_' . strtoupper ( $loc ), $loc . '_' . $loc ,
313 $loc . '-' . strtoupper ( $loc ), $loc . '-' . $loc );
316 setlocale ( LC_TIME
, $attempts ); // LC_TIME = Set local for date/time format only.
319 // ------------------------------------------------------------------------------------------
320 // PubSubHubbub protocol support (if enabled) [UNTESTED]
321 // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
322 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ])) include './publisher.php' ;
325 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
327 $p = new Publisher ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]);
329 indexUrl (). '?do=atom' ,
332 $p- > publish_update ( $topic_url );
336 // ------------------------------------------------------------------------------------------
337 // Session management
339 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
342 $ip = $_SERVER [ "REMOTE_ADDR" ];
343 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
344 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
345 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
349 function fillSessionInfo () {
350 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Generate unique random number (different than phpsessionid)
351 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
352 $_SESSION [ 'username' ]= $GLOBALS [ 'login' ];
353 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
356 // Check that user/password is correct.
357 function check_auth ( $login , $password )
359 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
360 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
361 { // Login/password is correct.
363 logm ( 'Login successful' );
366 logm ( 'Login failed for user ' . $login );
370 // Returns true if the user is logged in.
371 function isLoggedIn ()
373 global $userIsLoggedIn ;
374 return $userIsLoggedIn ;
379 if ( isset ( $_SESSION )) {
380 unset ( $_SESSION [ 'uid' ]);
381 unset ( $_SESSION [ 'ip' ]);
382 unset ( $_SESSION [ 'username' ]);
383 unset ( $_SESSION [ 'privateonly' ]);
385 setcookie ( 'shaarli_staySignedIn' , FALSE , 0 , WEB_PATH
);
389 // ------------------------------------------------------------------------------------------
390 // Brute force protection system
391 // Several consecutive failed logins will ban the IP address for 30 minutes.
392 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 ?>" );
393 include $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ];
394 // Signal a failed login. Will ban the IP if too many failures:
395 function ban_loginFailed ()
397 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
398 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
399 $gb [ 'FAILURES' ][ $ip ] ++
;
400 if ( $gb [ 'FAILURES' ][ $ip ]>( $GLOBALS [ 'config' ][ 'BAN_AFTER' ]- 1 ))
402 $gb [ 'BANS' ][ $ip ]= time () +
$GLOBALS [ 'config' ][ 'BAN_DURATION' ];
403 logm ( 'IP address banned from login' );
405 $GLOBALS [ 'IPBANS' ] = $gb ;
406 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
409 // Signals a successful login. Resets failed login counter.
410 function ban_loginOk ()
412 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
413 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
414 $GLOBALS [ 'IPBANS' ] = $gb ;
415 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
418 // Checks if the user CAN login. If 'true', the user can try to login.
419 function ban_canLogin ()
421 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
422 if ( isset ( $gb [ 'BANS' ][ $ip ]))
424 // User is banned. Check if the ban has expired:
425 if ( $gb [ 'BANS' ][ $ip ]<= time ())
426 { // Ban expired, user can try to login again.
428 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
429 file_put_contents ( $GLOBALS [ 'config' ][ 'IPBANS_FILENAME' ], "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
430 return true ; // Ban has expired, user can login.
432 return false ; // User is banned.
434 return true ; // User is not banned.
437 // ------------------------------------------------------------------------------------------
438 // Process login form: Check if login/password is correct.
439 if ( isset ( $_POST [ 'login' ]))
441 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
442 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
443 { // Login/password is OK.
445 // If user wants to keep the session cookie even after the browser closes:
446 if (! empty ( $_POST [ 'longlastingsession' ]))
448 setcookie ( 'shaarli_staySignedIn' , STAY_SIGNED_IN_TOKEN
, time () +
31536000 , WEB_PATH
);
449 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
450 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
452 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
453 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ], $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // Set session cookie expiration on client side
454 // Note: Never forget the trailing slash on the cookie path!
455 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
457 else // Standard session expiration (=when browser closes)
459 $cookiedir = '' ; if ( dirname ( $_SERVER [ 'SCRIPT_NAME' ])!= '/' ) $cookiedir = dirname ( $_SERVER [ "SCRIPT_NAME" ]). '/' ;
460 session_set_cookie_params ( 0 , $cookiedir , $_SERVER [ 'SERVER_NAME' ]); // 0 means "When browser closes"
461 session_regenerate_id ( true );
463 // Optional redirect after login:
464 if ( isset ( $_GET [ 'post' ])) { header ( 'Location: ?post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'description' ])? '&description=' . urlencode ( $_GET
[ 'description' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' )); exit ; }
465 if ( isset ( $_POST [ 'returnurl' ]))
467 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
468 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
470 header ( 'Location: ?' ); exit ;
476 if ( isset ( $_GET [ 'post' ])) { $redir
= '&post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'description' ])? '&description=' . urlencode ( $_GET
[ 'description' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' ); }
477 echo '<script>alert("Wrong login/password.");document.location= \' ?do=login' . $redir . ' \' ;</script>' ; // Redirect to login screen.
482 // ------------------------------------------------------------------------------------------
483 // Misc utility functions:
485 // Returns the server URL (including port and http/https), without path.
486 // e.g. "http://myserver.com:8080"
487 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
490 $https = (! empty ( $_SERVER [ 'HTTPS' ]) && ( strtolower ( $_SERVER [ 'HTTPS' ])== 'on' )) || $_SERVER [ "SERVER_PORT" ]== '443' ; // HTTPS detection.
491 $serverport = ( $_SERVER [ "SERVER_PORT" ]== '80' || ( $https && $_SERVER [ "SERVER_PORT" ]== '443' ) ? '' : ':' . $_SERVER [ "SERVER_PORT" ]);
492 return 'http' .( $https ? 's' : '' ). '://' . $_SERVER [ 'SERVER_NAME' ]. $serverport ;
495 // Returns the absolute URL of current script, without the query.
496 // (e.g. http://sebsauvage.net/links/)
499 $scriptname = $_SERVER [ "SCRIPT_NAME" ];
500 // If the script is named 'index.php', we remove it (for better looking URLs,
501 // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
502 if ( endswith ( $scriptname , 'index.php' )) $scriptname = substr ( $scriptname , 0 , strlen ( $scriptname )- 9 );
503 return serverUrl () . $scriptname ;
506 // Returns the absolute URL of current script, WITH the query.
507 // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
510 return indexUrl ().(! empty ( $_SERVER [ "QUERY_STRING" ]) ? '?' . $_SERVER [ "QUERY_STRING" ] : '' );
513 // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
514 function return_bytes ( $val )
516 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
519 case 'g' : $val *= 1024 ;
520 case 'm' : $val *= 1024 ;
521 case 'k' : $val *= 1024 ;
526 // Try to determine max file size for uploads (POST).
527 // Returns an integer (in bytes)
528 function getMaxFileSize ()
530 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
531 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
532 // Return the smaller of two:
533 $maxsize = min ( $size1 , $size2 );
534 // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
538 // Tells if a string start with a substring or not.
539 function startsWith ( $haystack , $needle , $case = true )
541 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
542 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
545 // Tells if a string ends with a substring or not.
546 function endsWith ( $haystack , $needle , $case = true )
548 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
549 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
552 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
553 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
554 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
555 function linkdate2timestamp ( $linkdate )
558 sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
559 return mktime ( $h , $m , $s , $M , $D , $Y );
562 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
563 (used to build the pubDate attribute in RSS feed.) */
564 function linkdate2rfc822 ( $linkdate )
566 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
569 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
570 (used to build the updated tags in ATOM feed.) */
571 function linkdate2iso8601 ( $linkdate )
573 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
576 // Parse HTTP response headers and return an associative array.
577 function http_parse_headers_shaarli ( $headers )
580 foreach ( $headers as $header )
582 $i = strpos ( $header , ': ' );
585 $key = substr ( $header , 0 , $i );
586 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
594 Input: $url : URL to get (http://...)
595 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
596 Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
597 [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type'])
599 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
600 if (strpos($httpstatus,'200 OK')!==false)
601 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
603 echo 'There was an error: '.htmlspecialchars($httpstatus)
605 function getHTTP ( $url , $timeout = 30 )
609 $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
610 $context = stream_context_create ( $options );
611 $data = file_get_contents ( $url , false , $context ,- 1 , 4000000 ); // We download at most 4 Mb from source.
612 if (! $data ) { return array ( 'HTTP Error' , array (), '' ); }
613 $httpStatus = $http_response_header [ 0 ]; // e.g. "HTTP/1.1 200 OK"
614 $responseHeaders = http_parse_headers_shaarli ( $http_response_header );
615 return array ( $httpStatus , $responseHeaders , $data );
617 catch ( Exception
$e ) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
619 return array ( $e- > getMessage (), '' , '' );
623 // Extract title from an HTML document.
624 // (Returns an empty string if not found.)
625 function html_extract_title ( $html )
627 return preg_match ( '!<title>(.*?)</title>!is' , $html , $matches ) ? trim ( str_replace ( " \n " , ' ' , $matches [ 1 ])) : '' ;
630 // ------------------------------------------------------------------------------------------
631 // Token management for XSRF protection
632 // Token should be used in any form which acts on data (create,update,delete,import...).
633 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
638 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand (). $GLOBALS [ 'salt' ]); // We generate a random string.
639 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
643 // Tells if a token is OK. Using this function will destroy the token.
645 function tokenOk ( $token )
647 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
649 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
650 return true ; // Token is OK.
652 return false ; // Wrong token, or already used.
655 // ------------------------------------------------------------------------------------------
656 /* This class is in charge of building the final page.
657 (This is basically a wrapper around RainTPL which pre-fills some fields.)
659 p.assign('myfield','myvalue');
660 p.renderPage('mytemplate');
665 private $tpl ; // RainTPL template
667 function __construct ()
672 private function initialize ()
674 $this- > tpl
= new RainTPL
;
675 $this- > tpl
-> assign ( 'newversion' , checkUpdate ());
676 $this- > tpl
-> assign ( 'feedurl' , htmlspecialchars ( indexUrl ()));
677 $searchcrits = '' ; // Search criteria
678 if (! empty ( $_GET [ 'searchtags' ])) $searchcrits .= '&searchtags=' . urlencode ( $_GET [ 'searchtags' ]);
679 elseif (! empty ( $_GET [ 'searchterm' ])) $searchcrits .= '&searchterm=' . urlencode ( $_GET [ 'searchterm' ]);
680 $this- > tpl
-> assign ( 'searchcrits' , $searchcrits );
681 $this- > tpl
-> assign ( 'source' , indexUrl ());
682 $this- > tpl
-> assign ( 'version' , shaarli_version
);
683 $this- > tpl
-> assign ( 'scripturl' , indexUrl ());
684 $this- > tpl
-> assign ( 'pagetitle' , 'Shaarli' );
685 $this- > tpl
-> assign ( 'privateonly' ,! empty ( $_SESSION [ 'privateonly' ])); // Show only private links?
686 if (! empty ( $GLOBALS [ 'title' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'title' ]);
687 if (! empty ( $GLOBALS [ 'titleLink' ])) $this- > tpl
-> assign ( 'titleLink' , $GLOBALS [ 'titleLink' ]);
688 if (! empty ( $GLOBALS [ 'pagetitle' ])) $this- > tpl
-> assign ( 'pagetitle' , $GLOBALS [ 'pagetitle' ]);
689 $this- > tpl
-> assign ( 'shaarlititle' , empty ( $GLOBALS [ 'title' ]) ? 'Shaarli' : $GLOBALS [ 'title' ] );
693 // The following assign() method is basically the same as RainTPL (except that it's lazy)
694 public function assign ( $what , $where )
696 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
697 $this- > tpl
-> assign ( $what , $where );
700 // Render a specific page (using a template).
701 // e.g. pb.renderPage('picwall')
702 public function renderPage ( $page )
704 if ( $this- > tpl
=== false ) $this- > initialize (); // Lazy initialization
705 $this- > tpl
-> draw ( $page );
709 // ------------------------------------------------------------------------------------------
710 /* Data storage for links.
711 This object behaves like an associative array.
713 $mylinks = new linkdb();
714 echo $mylinks['20110826_161819']['title'];
715 foreach($mylinks as $link)
716 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
719 title : Title of the link
720 url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (e.g.'?m-ukcw')
721 description : description of the entry
722 private : Is this link private? 0=no, other value=yes
723 linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (e.g.'20110914_192317')
724 tags : tags attached to this entry (separated by spaces)
726 We implement 3 interfaces:
727 - ArrayAccess so that this object behaves like an associative array.
728 - Iterator so that this object can be used in foreach() loops.
729 - Countable interface so that we can do a count() on this object.
731 class linkdb
implements Iterator
, Countable
, ArrayAccess
733 private $links ; // List of links (associative array. Key=linkdate (e.g. "20110823_124546"), value= associative array (keys:title,description...)
734 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
735 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
736 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
737 private $loggedin ; // Is the user logged in? (used to filter private links)
740 function __construct ( $isLoggedIn )
741 // Input : $isLoggedIn : is the user logged in?
743 $this- > loggedin
= $isLoggedIn ;
744 $this- > checkdb (); // Make sure data file exists.
745 $this- > readdb (); // Then read it.
748 // ---- Countable interface implementation
749 public function count () { return count ( $this
-> links
); }
751 // ---- ArrayAccess interface implementation
752 public function offsetSet ( $offset , $value )
754 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
755 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and URL.' );
756 if ( empty ( $offset )) die ( 'You must specify a key.' );
757 $this- > links
[ $offset ] = $value ;
758 $this- > urls
[ $value [ 'url' ]]= $offset ;
760 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
761 public function offsetUnset ( $offset )
763 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
764 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
765 unset ( $this- > links
[ $offset ]);
767 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
769 // ---- Iterator interface implementation
770 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
771 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
772 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
773 function next () { ++$this
-> position
; } // go to next item
774 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
777 private function checkdb () // Check if db directory and file exists.
779 if (! file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ])) // Create a dummy database for example.
781 $this- > links
= array ();
782 $link = array ( 'title' => 'Shaarli - sebsauvage.net' , 'url' => 'http://sebsauvage.net/wiki/doku.php?id=php:shaarli' , 'description' => 'Welcome to Shaarli ! This is a bookmark. To edit or delete me, you must first login.' , 'private' => 0 , 'linkdate' => '20110914_190000' , 'tags' => 'opensource software' );
783 $this- > links
[ $link [ 'linkdate' ]] = $link ;
784 $link = array ( 'title' => 'My secret stuff... - Pastebin.com' , 'url' => 'http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=' , 'description' => 'SShhhh!! I \' m a private link only YOU can see. You can delete me too.' , 'private' => 1 , 'linkdate' => '20110914_074522' , 'tags' => 'secretstuff' );
785 $this- > links
[ $link [ 'linkdate' ]] = $link ;
786 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
790 // Read database from disk to memory
791 private function readdb ()
794 $this- > links
=( file_exists ( $GLOBALS [ 'config' ][ 'DATASTORE' ]) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ]), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
795 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
797 // If user is not logged in, filter private links.
798 if (! $this- > loggedin
)
801 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
802 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
805 // Keep the list of the mapping URLs-->linkdate up-to-date.
807 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
810 // Save database from memory to disk.
811 public function savedb ()
813 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
814 file_put_contents ( $GLOBALS [ 'config' ][ 'DATASTORE' ], PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
818 // Returns the link for a given URL (if it exists). False if it does not exist.
819 public function getLinkFromUrl ( $url )
821 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
825 // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links.
826 // e.g. print_r($mydb->filterFulltext('hollandais'));
827 public function filterFulltext ( $searchterms )
829 // FIXME: explode(' ',$searchterms) and perform a AND search.
830 // FIXME: accept double-quotes to search for a string "as is"?
831 // Using mb_convert_case($val, MB_CASE_LOWER, 'UTF-8') allows us to perform searches on
832 // Unicode text. See https://github.com/shaarli/Shaarli/issues/75 for examples.
834 $s = mb_convert_case ( $searchterms , MB_CASE_LOWER
, 'UTF-8' );
835 foreach ( $this- > links
as $l )
837 $found = ( strpos ( mb_convert_case ( $l [ 'title' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
838 || ( strpos ( mb_convert_case ( $l [ 'description' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
839 || ( strpos ( mb_convert_case ( $l [ 'url' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false )
840 || ( strpos ( mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' ), $s ) !== false );
841 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
848 // You can specify one or more tags (tags can be separated by space or comma).
849 // e.g. print_r($mydb->filterTags('linux programming'));
850 public function filterTags ( $tags , $casesensitive = false )
852 // Same as above, we use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
853 // TODO: is $casesensitive ever true ?
854 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : mb_convert_case ( $tags , MB_CASE_LOWER
, 'UTF-8' )));
855 $searchtags = explode ( ' ' , $t );
857 foreach ( $this- > links
as $l )
859 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: mb_convert_case ( $l [ 'tags' ], MB_CASE_LOWER
, 'UTF-8' )));
860 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
861 $filtered [ $l [ 'linkdate' ]] = $l ;
867 // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125')
868 // Sort order is: older articles first.
869 // e.g. print_r($mydb->filterDay('20120125'));
870 public function filterDay ( $day )
873 foreach ( $this- > links
as $l )
875 if ( startsWith ( $l [ 'linkdate' ], $day )) $filtered [ $l [ 'linkdate' ]] = $l ;
880 // Filter by smallHash.
881 // Only 1 article is returned.
882 public function filterSmallHash ( $smallHash )
885 foreach ( $this- > links
as $l )
887 if ( $smallHash == smallHash ( $l [ 'linkdate' ])) // Yes, this is ugly and slow
889 $filtered [ $l [ 'linkdate' ]] = $l ;
896 // Returns the list of all tags
897 // Output: associative array key=tags, value=0
898 public function allTags ()
901 foreach ( $this- > links
as $link )
902 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
903 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
904 arsort ( $tags ); // Sort tags by usage (most used tag first)
908 // Returns the list of days containing articles (oldest first)
909 // Output: An array containing days (in format YYYYMMDD).
910 public function days ()
913 foreach ( array_keys ( $this- > links
) as $day )
915 $linkdays [ substr ( $day , 0 , 8 )]= 0 ;
917 $linkdays = array_keys ( $linkdays );
923 // ------------------------------------------------------------------------------------------
924 // Output the last N links in RSS 2.0 format.
927 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
929 // $usepermalink : If true, use permalink instead of final link.
930 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
931 // Also enabled through a config option
932 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
935 $query = $_SERVER [ "QUERY_STRING" ];
936 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=rss' ) && ! isLoggedIn ());
937 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
939 // If cached was not found (or not usable), then read the database and build the response:
940 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if user it not logged in).
942 // Optionally filter the results:
943 $linksToDisplay = array ();
944 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
945 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
946 else $linksToDisplay = $LINKSDB ;
947 $nblinksToDisplay = 50 ; // Number of links to display.
948 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
950 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
953 $pageaddr = htmlspecialchars ( indexUrl ());
954 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
955 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
956 echo '<description>Shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
957 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
959 echo '<!-- PubSubHubbub Discovery -->' ;
960 echo '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" xmlns="http://www.w3.org/2005/Atom" />' ;
961 echo '<link rel="self" href="' . htmlspecialchars ( $pageaddr ). '?do=rss" xmlns="http://www.w3.org/2005/Atom" />' ;
962 echo '<!-- End Of PubSubHubbub Discovery -->' ;
965 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
966 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
968 $link = $linksToDisplay [ $keys [ $i ]];
969 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
970 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
971 $absurl = htmlspecialchars ( $link [ 'url' ]);
972 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
973 if ( $usepermalinks === true )
974 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="true">' . $guid . '</guid><link>' . $guid . '</link>' ;
976 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid isPermaLink="false">' . $guid . '</guid><link>' . $absurl . '</link>' ;
977 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate> \n " ;
978 if ( $link [ 'tags' ]!= '' ) // Adding tags to each RSS entry (as mentioned in RSS specification)
980 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { echo '<category domain="' . htmlspecialchars ( $pageaddr
). '">' . htmlspecialchars ( $tag
). '</category>' . " \n " ; }
983 // Add permalink in description
984 $descriptionlink = '(<a href="' . $guid . '">Permalink</a>)' ;
985 // If user wants permalinks first, put the final link in description
986 if ( $usepermalinks === true ) $descriptionlink = '(<a href="' . $absurl . '">Link</a>)' ;
987 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
988 echo '<description><![CDATA[' . nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ])))). $descriptionlink . ']]></description>' . " \n </item> \n " ;
991 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
993 $cache- > cache ( ob_get_contents ());
998 // ------------------------------------------------------------------------------------------
999 // Output the last N links in ATOM format.
1002 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
1004 // $usepermalink : If true, use permalink instead of final link.
1005 // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
1006 $usepermalinks = isset ( $_GET [ 'permalinks' ]) || ! $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ];
1009 $query = $_SERVER [ "QUERY_STRING" ];
1010 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=atom' ) && ! isLoggedIn ());
1011 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1012 // If cached was not found (or not usable), then read the database and build the response:
1014 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1017 // Optionally filter the results:
1018 $linksToDisplay = array ();
1019 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1020 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1021 else $linksToDisplay = $LINKSDB ;
1022 $nblinksToDisplay = 50 ; // Number of links to display.
1023 if (! empty ( $_GET [ 'nb' ])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
1025 $nblinksToDisplay = $_GET [ 'nb' ]== 'all' ? count ( $linksToDisplay ) : max ( $_GET [ 'nb' ] +
0 , 1 ) ;
1028 $pageaddr = htmlspecialchars ( indexUrl ());
1032 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
1033 while ( $i < $nblinksToDisplay && $i < count ( $keys ))
1035 $link = $linksToDisplay [ $keys [ $i ]];
1036 $guid = $pageaddr . '?' . smallHash ( $link [ 'linkdate' ]);
1037 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
1038 $latestDate = max ( $latestDate , $iso8601date );
1039 $absurl = htmlspecialchars ( $link [ 'url' ]);
1040 if ( startsWith ( $absurl , '?' )) $absurl = $pageaddr . $absurl ; // make permalink URL absolute
1041 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title>' ;
1042 if ( $usepermalinks === true )
1043 $entries .= '<link href="' . $guid . '" /><id>' . $guid . '</id>' ;
1045 $entries .= '<link href="' . $absurl . '" /><id>' . $guid . '</id>' ;
1046 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
1048 // Add permalink in description
1049 $descriptionlink = htmlspecialchars ( '(<a href="' . $guid . '">Permalink</a>)' );
1050 // If user wants permalinks first, put the final link in description
1051 if ( $usepermalinks === true ) $descriptionlink = htmlspecialchars ( '(<a href="' . $absurl . '">Link</a>)' );
1052 if ( strlen ( $link [ 'description' ])> 0 ) $descriptionlink = '<br>' . $descriptionlink ;
1054 $entries .= '<content type="html">' . htmlspecialchars ( nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))))). $descriptionlink . "</content> \n " ;
1055 if ( $link [ 'tags' ]!= '' ) // Adding tags to each ATOM entry (as mentioned in ATOM specification)
1057 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
1058 { $entries
.= '<category scheme="' . htmlspecialchars ( $pageaddr
, ENT_QUOTES
). '" term="' . htmlspecialchars ( $tag
, ENT_QUOTES
). '" />' . " \n " ; }
1060 $entries .= "</entry> \n " ;
1063 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
1064 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
1065 if (! $GLOBALS [ 'config' ][ 'HIDE_TIMESTAMPS' ] || isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
1066 $feed .= '<link rel="self" href="' . htmlspecialchars ( serverUrl (). $_SERVER [ "REQUEST_URI" ]). '" />' ;
1067 if (! empty ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]))
1069 $feed .= '<!-- PubSubHubbub Discovery -->' ;
1070 $feed .= '<link rel="hub" href="' . htmlspecialchars ( $GLOBALS [ 'config' ][ 'PUBSUBHUB_URL' ]). '" />' ;
1071 $feed .= '<!-- End Of PubSubHubbub Discovery -->' ;
1073 $feed .= '<author><name>' . htmlspecialchars ( $pageaddr ). '</name><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
1074 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
1076 $feed .= '</feed><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1079 $cache- > cache ( ob_get_contents ());
1084 // ------------------------------------------------------------------------------------------
1085 // Daily RSS feed: 1 RSS entry per day giving all the links on that day.
1086 // Gives the last 7 days (which have links).
1087 // This RSS feed cannot be filtered.
1088 function showDailyRSS ()
1091 $query = $_SERVER [ "QUERY_STRING" ];
1092 $cache = new pageCache ( pageUrl (), startsWith ( $query , 'do=dailyrss' ) && ! isLoggedIn ());
1093 $cached = $cache- > cachedVersion (); if (! empty ( $cached )) { echo $cached
; exit ; }
1094 // If cached was not found (or not usable), then read the database and build the response:
1095 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1097 /* Some Shaarlies may have very few links, so we need to look
1098 back in time (rsort()) until we have enough days ($nb_of_days).
1100 $linkdates = array (); foreach ( $LINKSDB as $linkdate => $value ) { $linkdates
[]= $linkdate
; }
1102 $nb_of_days = 7 ; // We take 7 days.
1105 foreach ( $linkdates as $linkdate )
1107 $day = substr ( $linkdate , 0 , 8 ); // Extract day (without time)
1108 if ( strcmp ( $day , $today )< 0 )
1110 if ( empty ( $days [ $day ])) $days [ $day ]= array ();
1111 $days [ $day ][]= $linkdate ;
1113 if ( count ( $days )> $nb_of_days ) break ; // Have we collected enough days?
1116 // Build the RSS feed.
1117 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
1118 $pageaddr = htmlspecialchars ( indexUrl ());
1119 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">' ;
1120 echo '<channel><title>Daily - ' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
1121 echo '<description>Daily shared links</description><language>en-en</language><copyright>' . $pageaddr . '</copyright>' . " \n " ;
1123 foreach ( $days as $day => $linkdates ) // For each day.
1125 $daydate = utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))); // Full text date
1126 $rfc822date = linkdate2rfc822 ( $day . '_000000' );
1127 $absurl = htmlspecialchars ( indexUrl (). '?do=daily&day=' . $day ); // Absolute URL of the corresponding "Daily" page.
1128 echo '<item><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]. ' - ' . $daydate ). '</title><guid>' . $absurl . '</guid><link>' . $absurl . '</link>' ;
1129 echo '<pubDate>' . htmlspecialchars ( $rfc822date ). "</pubDate>" ;
1131 // Build the HTML body of this RSS entry.
1135 // We pre-format some fields for proper output.
1136 foreach ( $linkdates as $linkdate )
1138 $l = $LINKSDB [ $linkdate ];
1139 $l [ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $l [ 'description' ]))));
1140 $l [ 'thumbnail' ] = thumbnail ( $l [ 'url' ]);
1141 $l [ 'timestamp' ] = linkdate2timestamp ( $l [ 'linkdate' ]);
1142 if ( startsWith ( $l [ 'url' ], '?' )) $l [ 'url' ]= indexUrl (). $l [ 'url' ]; // make permalink URL absolute
1143 $links [ $linkdate ]= $l ;
1145 // Then build the HTML for this day:
1147 $tpl- > assign ( 'links' , $links );
1148 $html = $tpl- > draw ( 'dailyrss' , $return_string = true );
1150 echo '<description><![CDATA[' . $html . ']]></description>' . " \n </item> \n\n " ;
1153 echo '</channel></rss><!-- Cached version of ' . htmlspecialchars ( pageUrl ()). ' -->' ;
1155 $cache- > cache ( ob_get_contents ());
1161 function showDaily ()
1163 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1166 $day = Date ( 'Ymd' , strtotime ( '-1 day' )); // Yesterday, in format YYYYMMDD.
1167 if ( isset ( $_GET [ 'day' ])) $day = $_GET [ 'day' ];
1169 $days = $LINKSDB- > days ();
1170 $i = array_search ( $day , $days );
1171 if ( $i == false ) { $i
= count ( $days
)- 1 ; $day
= $days
[ $i
]; }
1176 if ( $i > 1 ) $previousday = $days [ $i-1 ];
1177 if ( $i < count ( $days )- 1 ) $nextday = $days [ $i +
1 ];
1180 $linksToDisplay = $LINKSDB- > filterDay ( $day );
1181 // We pre-format some fields for proper output.
1182 foreach ( $linksToDisplay as $key => $link )
1184 $taglist = explode ( ' ' , $link [ 'tags' ]);
1185 uasort ( $taglist , 'strcasecmp' );
1186 $linksToDisplay [ $key ][ 'taglist' ]= $taglist ;
1187 $linksToDisplay [ $key ][ 'formatedDescription' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1188 $linksToDisplay [ $key ][ 'thumbnail' ] = thumbnail ( $link [ 'url' ]);
1189 $linksToDisplay [ $key ][ 'timestamp' ] = linkdate2timestamp ( $link [ 'linkdate' ]);
1192 /* We need to spread the articles on 3 columns.
1193 I did not want to use a JavaScript lib like http://masonry.desandro.com/
1194 so I manually spread entries with a simple method: I roughly evaluate the
1195 height of a div according to title and description length.
1197 $columns = array ( array (), array (), array ()); // Entries to display, for each column.
1198 $fill = array ( 0 , 0 , 0 ); // Rough estimate of columns fill.
1199 foreach ( $linksToDisplay as $key => $link )
1201 // Roughly estimate length of entry (by counting characters)
1202 // Title: 30 chars = 1 line. 1 line is 30 pixels height.
1203 // Description: 836 characters gives roughly 342 pixel height.
1204 // This is not perfect, but it's usually OK.
1205 $length = strlen ( $link [ 'title' ]) +
( 342 * strlen ( $link [ 'description' ]))/ 836 ;
1206 if ( $link [ 'thumbnail' ]) $length +
= 100 ; // 1 thumbnails roughly takes 100 pixels height.
1207 // Then put in column which is the less filled:
1208 $smallest = min ( $fill ); // find smallest value in array.
1209 $index = array_search ( $smallest , $fill ); // find index of this smallest value.
1210 array_push ( $columns [ $index ], $link ); // Put entry in this column.
1211 $fill [ $index ] +
= $length ;
1213 $PAGE = new pageBuilder
;
1214 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1215 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1216 $PAGE- > assign ( 'cols' , $columns );
1217 $PAGE- > assign ( 'day' , utf8_encode ( strftime ( '%A %d, %B %Y' , linkdate2timestamp ( $day . '_000000' ))));
1218 $PAGE- > assign ( 'previousday' , $previousday );
1219 $PAGE- > assign ( 'nextday' , $nextday );
1220 $PAGE- > renderPage ( 'daily' );
1225 // ------------------------------------------------------------------------------------------
1226 // Render HTML page (according to URL parameters and user rights)
1227 function renderPage ()
1229 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1231 // -------- Display login form.
1232 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
1234 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
1235 $token = '' ; if ( ban_canLogin ()) $token = getToken (); // Do not waste token generation if not useful.
1236 $PAGE = new pageBuilder
;
1237 $PAGE- > assign ( 'token' , $token );
1238 $PAGE- > assign ( 'returnurl' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ]: '' ));
1239 $PAGE- > renderPage ( 'loginform' );
1242 // -------- User wants to logout.
1243 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
1247 header ( 'Location: ?' );
1251 // -------- Picture wall
1252 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=picwall' ))
1254 // Optionally filter the results:
1256 if (! empty ( $_GET [ 'searchterm' ])) $links = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
1257 elseif (! empty ( $_GET [ 'searchtags' ])) $links = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1258 else $links = $LINKSDB ;
1260 $linksToDisplay = array ();
1262 // Get only links which have a thumbnail.
1263 foreach ( $links as $link )
1265 $permalink = '?' . htmlspecialchars ( smallhash ( $link [ 'linkdate' ]), ENT_QUOTES
);
1266 $thumb = lazyThumbnail ( $link [ 'url' ], $permalink );
1267 if ( $thumb != '' ) // Only output links which have a thumbnail.
1269 $link [ 'thumbnail' ]= $thumb ; // Thumbnail HTML code.
1270 $linksToDisplay []= $link ; // Add to array.
1273 $PAGE = new pageBuilder
;
1274 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1275 $PAGE- > assign ( 'linksToDisplay' , $linksToDisplay );
1276 $PAGE- > renderPage ( 'picwall' );
1280 // -------- Tag cloud
1281 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
1283 $tags = $LINKSDB- > allTags ();
1284 // We sort tags alphabetically, then choose a font size according to count.
1285 // First, find max value.
1286 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
1289 foreach ( $tags as $key => $value )
1290 // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
1292 $tagList [ $key ] = array ( 'count' => $value , 'size' => log ( $value , 15 ) / log ( $maxcount , 30 ) * ( 22 - 6 ) +
6 );
1294 $PAGE = new pageBuilder
;
1295 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1296 $PAGE- > assign ( 'tags' , $tagList );
1297 $PAGE- > renderPage ( 'tagcloud' );
1301 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
1302 if ( isset ( $_GET [ 'addtag' ]))
1304 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
1305 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
1306 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1308 // Check if this tag is already in the search query and ignore it if it is.
1309 // Each tag is always separated by a space
1310 $current_tags = explode ( ' ' , $params [ 'searchtags' ]);
1312 foreach ( $current_tags as $value ) {
1313 if ( $value === $_GET [ 'addtag' ]) {
1318 // Append the tag if necessary
1319 if ( empty ( $params [ 'searchtags' ])) {
1320 $params [ 'searchtags' ] = trim ( $_GET [ 'addtag' ]);
1323 $params [ 'searchtags' ] = trim ( $params [ 'searchtags' ]). ' ' . trim ( $_GET [ 'addtag' ]);
1326 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1327 header ( 'Location: ?' . http_build_query ( $params ));
1331 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
1332 if ( isset ( $_GET [ 'removetag' ]))
1334 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
1335 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
1336 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
1337 if ( isset ( $params [ 'searchtags' ]))
1339 $tags = explode ( ' ' , $params [ 'searchtags' ]);
1340 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
1341 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
1342 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
1344 header ( 'Location: ?' . http_build_query ( $params ));
1348 // -------- User wants to change the number of links per page (linksperpage=...)
1349 if ( isset ( $_GET [ 'linksperpage' ]))
1351 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
1352 // Make sure the referrer is Shaarli itself.
1354 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1355 $referer = $_SERVER [ 'HTTP_REFERER' ];
1356 header ( 'Location: ' . $referer );
1360 // -------- User wants to see only private links (toggle)
1361 if ( isset ( $_GET [ 'privateonly' ]))
1363 if ( empty ( $_SESSION [ 'privateonly' ]))
1365 $_SESSION [ 'privateonly' ]= 1 ; // See only private links
1369 unset ( $_SESSION [ 'privateonly' ]); // See all links
1371 // Make sure the referrer is Shaarli itself.
1373 if (! empty ( $_SERVER [ 'HTTP_REFERER' ]) && strcmp ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_HOST
), $_SERVER [ 'HTTP_HOST' ])== 0 )
1374 $referer = $_SERVER [ 'HTTP_REFERER' ];
1375 header ( 'Location: ' . $referer );
1379 // -------- Handle other actions allowed for non-logged in users:
1382 // User tries to post new link but is not logged in:
1383 // Show login screen, then redirect to ?post=...
1384 if ( isset ( $_GET [ 'post' ]))
1386 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.
1390 // Same case as above except that user tried to access ?do=addlink without being logged in
1391 // Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
1392 if ( isset ( $_GET [ 'do' ]) && $_GET [ 'do' ] === 'addlink' ) {
1393 header ( 'Location: ?do=login&post=' );
1397 $PAGE = new pageBuilder
;
1398 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1399 $PAGE- > renderPage ( 'linklist' );
1400 exit ; // Never remove this one! All operations below are reserved for logged in user.
1403 // -------- All other functions are reserved for the registered user:
1405 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
1406 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
1408 $PAGE = new pageBuilder
;
1409 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1410 $PAGE- > assign ( 'pageabsaddr' , indexUrl ());
1411 $PAGE- > renderPage ( 'tools' );
1415 // -------- User wants to change his/her password.
1416 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
1418 if ( $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]) die ( 'You are not supposed to change a password on an Open Shaarli.' );
1419 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
1421 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1423 // Make sure old password is correct.
1424 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1425 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script>alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
1426 // Save new password
1427 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1428 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1430 echo '<script>alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
1433 else // show the change password form.
1435 $PAGE = new pageBuilder
;
1436 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1437 $PAGE- > assign ( 'token' , getToken ());
1438 $PAGE- > renderPage ( 'changepassword' );
1443 // -------- User wants to change configuration
1444 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
1446 if (! empty ( $_POST [ 'title' ]) )
1448 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1450 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1451 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1452 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1453 $GLOBALS [ 'timezone' ] = $tz ;
1454 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
1455 $GLOBALS [ 'titleLink' ]= $_POST [ 'titleLink' ];
1456 $GLOBALS [ 'redirector' ]= $_POST [ 'redirector' ];
1457 $GLOBALS [ 'disablesessionprotection' ]=! empty ( $_POST [ 'disablesessionprotection' ]);
1458 $GLOBALS [ 'disablejquery' ]=! empty ( $_POST [ 'disablejquery' ]);
1459 $GLOBALS [ 'privateLinkByDefault' ]=! empty ( $_POST [ 'privateLinkByDefault' ]);
1460 $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ]= ! empty ( $_POST [ 'enableRssPermalinks' ]);
1461 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
1462 $GLOBALS [ 'config' ][ 'DISABLE_PUBLIC_LINKS' ] = ! empty ( $_POST [ 'disablePublicLinks' ]);
1464 echo '<script>alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
1467 else // Show the configuration form.
1469 $PAGE = new pageBuilder
;
1470 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1471 $PAGE- > assign ( 'token' , getToken ());
1472 $PAGE- > assign ( 'title' , htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
));
1473 $PAGE- > assign ( 'redirector' , htmlspecialchars ( empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ] , ENT_QUOTES
));
1474 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
1475 $PAGE- > assign ( 'timezone_form' , $timezone_form ); // FIXME: Put entire tz form generation in template?
1476 $PAGE- > assign ( 'timezone_js' , $timezone_js );
1477 $PAGE- > renderPage ( 'configure' );
1482 // -------- User wants to rename a tag or delete it
1483 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
1485 if ( empty ( $_POST [ 'fromtag' ]))
1487 $PAGE = new pageBuilder
;
1488 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1489 $PAGE- > assign ( 'token' , getToken ());
1490 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1491 $PAGE- > renderPage ( 'changetag' );
1494 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1497 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
1499 $needle = trim ( $_POST [ 'fromtag' ]);
1500 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // True for case-sensitive tag search.
1501 foreach ( $linksToAlter as $key => $value )
1503 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1504 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
1505 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1506 $LINKSDB [ $key ]= $value ;
1508 $LINKSDB- > savedb (); // Save to disk.
1509 echo '<script>alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
1514 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
1516 $needle = trim ( $_POST [ 'fromtag' ]);
1517 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
1518 foreach ( $linksToAlter as $key => $value )
1520 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
1521 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Replace tags value.
1522 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
1523 $LINKSDB [ $key ]= $value ;
1525 $LINKSDB- > savedb (); // Save to disk.
1526 echo '<script>alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
1531 // -------- User wants to add a link without using the bookmarklet: Show form.
1532 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
1534 $PAGE = new pageBuilder
;
1535 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1536 $PAGE- > renderPage ( 'addlink' );
1540 // -------- User clicked the "Save" button when editing a link: Save link to database.
1541 if ( isset ( $_POST [ 'save_edit' ]))
1543 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away!
1544 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
1545 $linkdate = $_POST [ 'lf_linkdate' ];
1546 $url = trim ( $_POST [ 'lf_url' ]);
1547 if (! startsWith ( $url , 'http:' ) && ! startsWith ( $url , 'https:' ) && ! startsWith ( $url , 'ftp:' ) && ! startsWith ( $url , 'magnet:' ) && ! startsWith ( $url , '?' ) && ! startsWith ( $url , 'javascript:' ))
1548 $url = 'http://' . $url ;
1549 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => $url , 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
1550 'linkdate' => $linkdate , 'tags' => str_replace ( ',' , ' ' , $tags ));
1551 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
1552 $LINKSDB [ $linkdate ] = $link ;
1553 $LINKSDB- > savedb (); // Save to disk.
1556 // If we are called from the bookmarklet, we must close the popup:
1557 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1558 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1559 $returnurl .= '#' . smallHash ( $linkdate ); // Scroll to the link which has been edited.
1560 if ( strstr ( $returnurl , "do=addlink" )) { $returnurl
= '?' ; } //if we come from ?do=addlink, set returnurl to homepage instead
1561 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
1565 // -------- User clicked the "Cancel" button when editing a link.
1566 if ( isset ( $_POST [ 'cancel_edit' ]))
1568 // If we are called from the bookmarklet, we must close the popup:
1569 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1570 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
1571 $returnurl .= '#' . smallHash ( $_POST [ 'lf_linkdate' ]); // Scroll to the link which has been edited.
1572 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
1576 // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1577 if ( isset ( $_POST [ 'delete_link' ]))
1579 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1580 // We do not need to ask for confirmation:
1581 // - confirmation is handled by JavaScript
1582 // - we are protected from XSRF by the token.
1583 $linkdate = $_POST [ 'lf_linkdate' ];
1584 unset ( $LINKSDB [ $linkdate ]);
1585 $LINKSDB- > savedb (); // save to disk
1587 // If we are called from the bookmarklet, we must close the popup:
1588 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script>self.close();</script>' ; exit ; }
1589 // Pick where we're going to redirect
1590 // =============================================================
1591 // Basically, we can't redirect to where we were previously if it was a permalink
1592 // or an edit_link, because it would 404.
1594 // - / : nothing in $_GET, redirect to self
1595 // - /?page : redirect to self
1596 // - /?searchterm : redirect to self (there might be other links)
1597 // - /?searchtags : redirect to self
1598 // - /permalink : redirect to / (the link does not exist anymore)
1599 // - /?edit_link : redirect to / (the link does not exist anymore)
1600 // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
1601 // redirect is not satisfied, and only then redirect to /
1604 if ( count ( $_GET ) == 0 ||
1605 isset ( $_GET [ 'page' ]) ||
1606 isset ( $_GET [ 'searchterm' ]) ||
1607 isset ( $_GET [ 'searchtags' ])) {
1609 if ( isset ( $_POST [ 'returnurl' ])) {
1610 $location = $_POST [ 'returnurl' ]; // Handle redirects given by the form
1613 if ( $location === "?" &&
1614 isset ( $_SERVER [ 'HTTP_REFERER' ])) { // Handle HTTP_REFERER in case we're not coming from the same place.
1615 $location = $_SERVER [ 'HTTP_REFERER' ];
1619 header ( 'Location: ' . $location ); // After deleting the link, redirect to appropriate location
1623 // -------- User clicked the "EDIT" button on a link: Display link edit form.
1624 if ( isset ( $_GET [ 'edit_link' ]))
1626 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
1627 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
1628 $PAGE = new pageBuilder
;
1629 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1630 $PAGE- > assign ( 'link' , $link );
1631 $PAGE- > assign ( 'link_is_new' , false );
1632 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1633 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1634 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1635 $PAGE- > renderPage ( 'editlink' );
1639 // -------- User want to post a new link: Display link edit form.
1640 if ( isset ( $_GET [ 'post' ]))
1645 // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
1646 $annoyingpatterns = array ( '/[ \? &]utm_source=[^&]*/' , '/[ \? &]utm_campaign=[^&]*/' , '/[ \? &]utm_medium=[^&]*/' , '/#xtor=RSS-[^&]*/' , '/[ \? &]fb_[^&]*/' , '/[ \? &]__scoop[^&]*/' , '/#tk\.rss_all \? /' , '/[ \? &]action_ref_map=[^&]*/' , '/[ \? &]action_type_map=[^&]*/' , '/[ \? &]action_object_map=[^&]*/' );
1647 foreach ( $annoyingpatterns as $pattern )
1649 $url = preg_replace ( $pattern , "" , $url );
1652 $link_is_new = false ;
1653 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1656 $link_is_new = true ; // This is a new link
1657 $linkdate = strval ( date ( 'Ymd_His' ));
1658 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1659 $description = ( empty ( $_GET [ 'description' ]) ? '' : $_GET [ 'description' ]); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1660 $tags = ( empty ( $_GET [ 'tags' ]) ? '' : $_GET [ 'tags' ] ); // Get tags if it was provided in URL
1661 $private = (! empty ( $_GET [ 'private' ]) && $_GET [ 'private' ] === "1" ? 1 : 0 ); // Get private if it was provided in URL
1662 if (( $url != '' ) && parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1663 // If this is an HTTP link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
1664 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1666 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1667 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1668 if ( strpos ( $status , '200 OK' )!== false )
1670 // Look for charset in html header.
1671 preg_match ( '#<meta .*charset=.*>#Usi' , $data , $meta );
1673 // If found, extract encoding.
1674 if (! empty ( $meta [ 0 ]))
1676 // Get encoding specified in header.
1677 preg_match ( '#charset="?(.*)"#si' , $meta [ 0 ], $enc );
1678 // If charset not found, use utf-8.
1679 $html_charset = (! empty ( $enc [ 1 ])) ? strtolower ( $enc [ 1 ]) : 'utf-8' ;
1681 else { $html_charset
= 'utf-8' ; }
1684 $title = html_extract_title ( $data );
1687 // Re-encode title in utf-8 if necessary.
1688 $title = ( $html_charset == 'iso-8859-1' ) ? utf8_encode ( $title ) : $title ;
1692 if ( $url == '' ) // In case of empty URL, this is just a text (with a link that points to itself)
1694 $url = '?' . smallHash ( $linkdate );
1697 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => $private );
1700 $PAGE = new pageBuilder
;
1701 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1702 $PAGE- > assign ( 'link' , $link );
1703 $PAGE- > assign ( 'link_is_new' , $link_is_new );
1704 $PAGE- > assign ( 'token' , getToken ()); // XSRF protection.
1705 $PAGE- > assign ( 'http_referer' ,( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? $_SERVER [ 'HTTP_REFERER' ] : '' ));
1706 $PAGE- > assign ( 'tags' , $LINKSDB- > allTags ());
1707 $PAGE- > renderPage ( 'editlink' );
1711 // -------- Export as Netscape Bookmarks HTML file.
1712 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1714 if ( empty ( $_GET [ 'what' ]))
1716 $PAGE = new pageBuilder
;
1717 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1718 $PAGE- > renderPage ( 'export' );
1721 $exportWhat = $_GET [ 'what' ];
1722 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export???' );
1724 header ( 'Content-Type: text/html; charset=utf-8' );
1725 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1726 $currentdate = date ( 'Y/m/d H:i:s' );
1728 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1729 <!-- This is an automatically generated file.
1730 It will be read and overwritten.
1732 <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
1733 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1734 <TITLE>Bookmarks</TITLE>
1737 foreach ( $LINKSDB as $link )
1739 if ( $exportWhat == 'all' ||
1740 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1741 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1743 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1744 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1745 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1746 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1752 // -------- User is uploading a file for import
1753 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1755 // If file is too big, some form field may be missing.
1756 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1758 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1759 echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept (' . getMaxFileSize (). ' bytes). Please upload in smaller chunks.");document.location= \' ' . htmlspecialchars ( $returnurl ). ' \' ;</script>' ;
1762 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1767 // -------- Show upload/import dialog:
1768 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1770 $PAGE = new pageBuilder
;
1771 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1772 $PAGE- > assign ( 'token' , getToken ());
1773 $PAGE- > assign ( 'maxfilesize' , getMaxFileSize ());
1774 $PAGE- > renderPage ( 'import' );
1778 // -------- Otherwise, simply display search form and links:
1779 $PAGE = new pageBuilder
;
1780 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1781 buildLinkList ( $PAGE , $LINKSDB ); // Compute list of links to display
1782 $PAGE- > renderPage ( 'linklist' );
1786 // -----------------------------------------------------------------------------------------------
1787 // Process the import file form.
1788 function importFile ()
1790 if (!( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ])) { die ( 'Not allowed.' ); }
1791 $LINKSDB = new linkdb ( isLoggedIn () || $GLOBALS [ 'config' ][ 'OPEN_SHAARLI' ]); // Read links from database (and filter private links if used it not logged in).
1792 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1793 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1794 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1795 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private?
1796 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones?
1801 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1803 // Then import the bookmarks.
1804 if ( $type == 'netscape' )
1806 // This is a standard Netscape-style bookmark file.
1807 // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others.
1808 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1810 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1811 $d = explode ( '<DD>' , $html );
1812 if ( startswith ( $d [ 0 ], '<A ' ))
1814 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1815 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1816 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1817 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1819 foreach ( $matches as $m )
1821 $attr = $m [ 1 ]; $value = $m [ 2 ];
1822 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1823 elseif ( $attr == 'ADD_DATE' )
1825 $raw_add_date = intval ( $value );
1826 if ( $raw_add_date > 30000000000 ) $raw_add_date /= 1000 ; //If larger than year 2920, then was likely stored in milliseconds instead of seconds
1828 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1829 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1831 if ( $link [ 'url' ]!= '' )
1833 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1834 $dblink = $LINKSDB- > getLinkFromUrl ( $link [ 'url' ]); // See if the link is already in database.
1836 { // Link not in database, let's import it...
1837 if ( empty ( $raw_add_date )) $raw_add_date = time (); // In case of shitty bookmark file with no ADD_DATE
1839 // Make sure date/time is not already used by another link.
1840 // (Some bookmark files have several different links with the same ADD_DATE)
1841 // We increment date by 1 second until we find a date which is not used in DB.
1842 // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.)
1843 while (! empty ( $LINKSDB [ date ( 'Ymd_His' , $raw_add_date )])) { $raw_add_date++
; } // Yes, I know it's ugly.
1844 $link [ 'linkdate' ]= date ( 'Ymd_His' , $raw_add_date );
1845 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1848 else // Link already present in database.
1851 { // If overwrite is required, we import link data, except date/time.
1852 $link [ 'linkdate' ]= $dblink [ 'linkdate' ];
1853 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1863 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1867 echo '<script>alert("File ' . json_encode ( $filename ). ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1871 // -----------------------------------------------------------------------------------------------
1872 // Template for the list of links (<div id="linklist">)
1873 // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1874 function buildLinkList ( $PAGE , $LINKSDB )
1876 // ---- Filter link database according to parameters
1877 $linksToDisplay = array ();
1880 if ( isset ( $_GET [ 'searchterm' ])) // Fulltext search
1882 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1883 $search_crits = htmlspecialchars ( trim ( $_GET [ 'searchterm' ]));
1884 $search_type = 'fulltext' ;
1886 elseif ( isset ( $_GET [ 'searchtags' ])) // Search by tag
1888 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1889 $search_crits = explode ( ' ' , trim ( $_GET [ 'searchtags' ]));
1890 $search_type = 'tags' ;
1892 elseif ( isset ( $_SERVER [ 'QUERY_STRING' ]) && preg_match ( '/[a-zA-Z0-9-_@] {6} (&.+?)?/' , $_SERVER [ 'QUERY_STRING' ])) // Detect smallHashes in URL
1894 $linksToDisplay = $LINKSDB- > filterSmallHash ( substr ( trim ( $_SERVER [ "QUERY_STRING" ], '/' ), 0 , 6 ));
1895 if ( count ( $linksToDisplay )== 0 )
1897 header ( $_SERVER [ "SERVER_PROTOCOL" ]. " 404 Not Found" );
1898 echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.' ;
1899 echo '<br>You would mind <a href="?">clicking here</a>?' ;
1902 $search_type = 'permalink' ;
1904 // We chose to disable all private links and the user isn't logged in, do not return any link.
1905 else if ( $GLOBALS [ 'config' ][ 'DISABLE_PUBLIC_LINKS' ] && ! isLoggedIn ())
1906 $linksToDisplay = array ();
1908 $linksToDisplay = $LINKSDB ; // Otherwise, display without filtering.
1911 // Option: Show only private links
1912 if (! empty ( $_SESSION [ 'privateonly' ]))
1915 foreach ( $linksToDisplay as $linkdate => $link )
1917 if ( $link [ 'private' ]!= 0 ) $tmp [ $linkdate ]= $link ;
1919 $linksToDisplay = $tmp ;
1922 // ---- Handle paging.
1923 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
1924 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1925 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1927 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks PHP.
1929 // If there is only a single link, we change on-the-fly the title of the page.
1930 if ( count ( $linksToDisplay )== 1 ) $GLOBALS [ 'pagetitle' ] = $linksToDisplay [ $keys [ 0 ]][ 'title' ]. ' - ' . $GLOBALS [ 'title' ];
1932 // Select articles according to paging.
1933 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1934 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1935 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1936 $page = ( $page < 1 ? 1 : $page );
1937 $page = ( $page > $pagecount ? $pagecount : $page );
1938 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1939 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1940 $linkDisp = array (); // Links to display
1941 while ( $i < $end && $i < count ( $keys ))
1943 $link = $linksToDisplay [ $keys [ $i ]];
1944 $link [ 'description' ]= nl2br ( keepMultipleSpaces ( text2clickable ( htmlspecialchars ( $link [ 'description' ]))));
1945 $title = $link [ 'title' ];
1946 $classLi = $i %
2 != 0 ? '' : 'publicLinkHightLight' ;
1947 $link [ 'class' ] = ( $link [ 'private' ]== 0 ? $classLi : 'private' );
1948 $link [ 'timestamp' ]= linkdate2timestamp ( $link [ 'linkdate' ]);
1949 $taglist = explode ( ' ' , $link [ 'tags' ]);
1950 uasort ( $taglist , 'strcasecmp' );
1951 $link [ 'taglist' ]= $taglist ;
1953 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.
1954 strlen ( $link [ "url" ]) === 7 ) {
1955 $link [ "url" ] = indexUrl () . $link [ "url" ];
1958 $linkDisp [ $keys [ $i ]] = $link ;
1962 // Compute paging navigation
1963 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1964 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1966 $previous_page_url = '' ; if ( $i != count ( $keys )) $previous_page_url = '?page=' .( $page +
1 ). $searchterm . $searchtags ;
1967 $next_page_url = '' ; if ( $page > 1 ) $next_page_url = '?page=' .( $page-1 ). $searchterm . $searchtags ;
1969 $token = '' ; if ( isLoggedIn ()) $token = getToken ();
1971 // Fill all template fields.
1972 $PAGE- > assign ( 'linkcount' , count ( $LINKSDB ));
1973 $PAGE- > assign ( 'previous_page_url' , $previous_page_url );
1974 $PAGE- > assign ( 'next_page_url' , $next_page_url );
1975 $PAGE- > assign ( 'page_current' , $page );
1976 $PAGE- > assign ( 'page_max' , $pagecount );
1977 $PAGE- > assign ( 'result_count' , count ( $linksToDisplay ));
1978 $PAGE- > assign ( 'search_type' , $search_type );
1979 $PAGE- > assign ( 'search_crits' , $search_crits );
1980 $PAGE- > assign ( 'redirector' , empty ( $GLOBALS [ 'redirector' ]) ? '' : $GLOBALS [ 'redirector' ]); // Optional redirector URL.
1981 $PAGE- > assign ( 'token' , $token );
1982 $PAGE- > assign ( 'links' , $linkDisp );
1986 // Compute the thumbnail for a link.
1988 // With a link to the original URL.
1989 // Understands various services (youtube.com...)
1990 // Input: $url = URL for which the thumbnail must be found.
1991 // $href = if provided, this URL will be followed instead of $url
1992 // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1993 // Some of them may be missing.
1994 // Return an empty array if no thumbnail available.
1995 function computeThumbnail ( $url , $href = false )
1997 if (! $GLOBALS [ 'config' ][ 'ENABLE_THUMBNAILS' ]) return array ();
1998 if ( $href == false ) $href = $url ;
2000 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
2001 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
2002 // ^^^^^^^^^^^ ^^^^^^^^^^^
2003 $domain = parse_url ( $url , PHP_URL_HOST
);
2004 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
2006 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
2007 if (! empty ( $params [ 'v' ])) return array ( 'src' => 'https://img.youtube.com/vi/' . $params [ 'v' ]. '/default.jpg' ,
2008 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
2010 if ( $domain == 'youtu.be' ) // Youtube short links
2012 $path = parse_url ( $url , PHP_URL_PATH
);
2013 return array ( 'src' => 'https://img.youtube.com/vi' . $path . '/default.jpg' ,
2014 'href' => $href , 'width' => '120' , 'height' => '90' , 'alt' => 'YouTube thumbnail' );
2016 if ( $domain == 'pix.toile-libre.org' ) // pix.toile-libre.org image hosting
2018 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract image filename.
2019 if (! empty ( $params ) && ! empty ( $params [ 'img' ])) return array ( 'src' => 'http://pix.toile-libre.org/upload/thumb/' . urlencode ( $params [ 'img' ]),
2020 'href' => $href , 'style' => 'max-width:120px; max-height:150px' , 'alt' => 'pix.toile-libre.org thumbnail' );
2023 if ( $domain == 'imgur.com' )
2025 $path = parse_url ( $url , PHP_URL_PATH
);
2026 if ( startsWith ( $path , '/a/' )) return array (); // Thumbnails for albums are not available.
2027 if ( startsWith ( $path , '/r/' )) return array ( 'src' => 'https://i.imgur.com/' . basename ( $path ). 's.jpg' ,
2028 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2029 if ( startsWith ( $path , '/gallery/' )) return array ( 'src' => 'https://i.imgur.com' . substr ( $path , 8 ). 's.jpg' ,
2030 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2032 if ( substr_count ( $path , '/' )== 1 ) return array ( 'src' => 'https://i.imgur.com/' . substr ( $path , 1 ). 's.jpg' ,
2033 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2035 if ( $domain == 'i.imgur.com' )
2037 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
2038 if (! empty ( $pi [ 'filename' ])) return array ( 'src' => 'https://i.imgur.com/' . $pi [ 'filename' ]. 's.jpg' ,
2039 'href' => $href , 'width' => '90' , 'height' => '90' , 'alt' => 'imgur.com thumbnail' );
2041 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
2043 if ( strpos ( $url , 'dailymotion.com/video/' )!== false )
2045 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
2046 return array ( 'src' => $thumburl ,
2047 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'DailyMotion thumbnail' );
2050 if ( endsWith ( $domain , '.imageshack.us' ))
2052 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2053 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2055 $thumburl = substr ( $url , 0 , strlen ( $url )- strlen ( $ext )). 'th.' . $ext ;
2056 return array ( 'src' => $thumburl ,
2057 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'imageshack.us thumbnail' );
2061 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
2062 // So we deport the thumbnail generation in order not to slow down page generation
2063 // (and we also cache the thumbnail)
2065 if (! $GLOBALS [ 'config' ][ 'ENABLE_LOCALCACHE' ]) return array (); // If local cache is disabled, no thumbnails for services which require the use a local cache.
2067 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' )
2068 || $domain == 'vimeo.com'
2069 || $domain == 'ted.com' || endsWith ( $domain , '.ted.com' )
2070 || $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' )
2073 if ( $domain == 'vimeo.com' )
2074 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
2075 $path = parse_url ( $url , PHP_URL_PATH
);
2076 if (! preg_match ( '!/\d+.+?!' , $path )) return array (); // This is not a single video URL.
2078 if ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2079 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
2080 $path = parse_url ( $url , PHP_URL_PATH
);
2081 if (! preg_match ( '!/\d+.+?!' , $path )) return array ();
2083 if ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2084 { // Make sure this TED URL points to a video (/talks/...)
2085 $path = parse_url ( $url , PHP_URL_PATH
);
2086 if ( "/talks/" !== substr ( $path , 0 , 7 )) return array (); // This is not a single video URL.
2088 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2089 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2090 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2093 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
2094 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
2095 // But using the extension will do.
2096 $ext = strtolower ( pathinfo ( $url , PATHINFO_EXTENSION
));
2097 if ( $ext == 'jpg' || $ext == 'jpeg' || $ext == 'png' || $ext == 'gif' )
2099 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
2100 return array ( 'src' => indexUrl (). '?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ),
2101 'href' => $href , 'width' => '120' , 'style' => 'height:auto;' , 'alt' => 'thumbnail' );
2103 return array (); // No thumbnail.
2108 // Returns the HTML code to display a thumbnail for a link
2109 // with a link to the original URL.
2110 // Understands various services (youtube.com...)
2111 // Input: $url = URL for which the thumbnail must be found.
2112 // $href = if provided, this URL will be followed instead of $url
2113 // Returns '' if no thumbnail available.
2114 function thumbnail ( $url , $href = false )
2116 $t = computeThumbnail ( $url , $href );
2117 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2119 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '"><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2120 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2121 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2122 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2123 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2128 // Returns the HTML code to display a thumbnail for a link
2129 // for the picture wall (using lazy image loading)
2130 // Understands various services (youtube.com...)
2131 // Input: $url = URL for which the thumbnail must be found.
2132 // $href = if provided, this URL will be followed instead of $url
2133 // Returns '' if no thumbnail available.
2134 function lazyThumbnail ( $url , $href = false )
2136 $t = computeThumbnail ( $url , $href );
2137 if ( count ( $t )== 0 ) return '' ; // Empty array = no thumbnail for this URL.
2139 $html = '<a href="' . htmlspecialchars ( $t [ 'href' ]). '">' ;
2142 $html .= '<img class="b-lazy" src="#" data-src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2144 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2145 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2146 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2147 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2150 // No-JavaScript fallback.
2151 $html .= '<noscript><img src="' . htmlspecialchars ( $t [ 'src' ]). '"' ;
2152 if (! empty ( $t [ 'width' ])) $html .= ' width="' . htmlspecialchars ( $t [ 'width' ]). '"' ;
2153 if (! empty ( $t [ 'height' ])) $html .= ' height="' . htmlspecialchars ( $t [ 'height' ]). '"' ;
2154 if (! empty ( $t [ 'style' ])) $html .= ' style="' . htmlspecialchars ( $t [ 'style' ]). '"' ;
2155 if (! empty ( $t [ 'alt' ])) $html .= ' alt="' . htmlspecialchars ( $t [ 'alt' ]). '"' ;
2156 $html .= '></noscript></a>' ;
2162 // -----------------------------------------------------------------------------------------------
2164 // This function should NEVER be called if the file data/config.php exists.
2167 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
2168 if ( endsWith ( $_SERVER [ 'HTTP_HOST' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
2171 // This part makes sure sessions works correctly.
2172 // (Because on some hosts, session.save_path may not be set correctly,
2173 // or we may not have write access to it.)
2174 if ( isset ( $_GET [ 'test_session' ]) && ( ! isset ( $_SESSION ) || ! isset ( $_SESSION [ 'session_tested' ]) || $_SESSION [ 'session_tested' ]!= 'Working' ))
2175 { // Step 2: Check if data in session is correct.
2176 echo '<pre>Sessions do not seem to work correctly on your server.<br>' ;
2177 echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>' ;
2178 echo 'It currently points to ' . session_save_path (). '<br>' ;
2179 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>' ;
2180 echo '<br><a href="?">Click to try again.</a></pre>' ;
2183 if (! isset ( $_SESSION [ 'session_tested' ]))
2184 { // Step 1 : Try to store data in session and reload page.
2185 $_SESSION [ 'session_tested' ] = 'Working' ; // Try to set a variable in session.
2186 header ( 'Location: ' . indexUrl (). '?test_session' ); // Redirect to check stored data.
2188 if ( isset ( $_GET [ 'test_session' ]))
2189 { // Step 3: Sessions are OK. Remove test parameter from URL.
2190 header ( 'Location: ' . indexUrl ());
2194 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
2197 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
2198 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
2199 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
2200 $GLOBALS [ 'timezone' ] = $tz ;
2201 // Everything is ok, let's create config file.
2202 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
2203 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
2204 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
2205 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( indexUrl ()) : $_POST [ 'title' ] );
2206 $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ] = ! empty ( $_POST [ 'updateCheck' ]);
2208 echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location= \' ?do=login \' ;</script>' ;
2212 // Display config form:
2213 list ( $timezone_form , $timezone_js ) = templateTZform ();
2214 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
2216 $PAGE = new pageBuilder
;
2217 $PAGE- > assign ( 'timezone_html' , $timezone_html );
2218 $PAGE- > assign ( 'timezone_js' , $timezone_js );
2219 $PAGE- > renderPage ( 'install' );
2223 // Generates the timezone selection form and JavaScript.
2224 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
2225 // Output: array(html,js)
2226 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
2227 // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
2228 function templateTZform ( $ptz = false )
2230 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2232 // Try to split the provided timezone.
2233 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
2234 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
2236 // Display config form:
2237 $timezone_form = '' ;
2239 // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
2240 // We split the list in continents/cities.
2241 $continents = array ();
2243 foreach ( timezone_identifiers_list () as $tz )
2245 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
2246 $spos = strpos ( $tz , '/' );
2249 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
2250 $continents [ $continent ]= 1 ;
2251 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= '' ;
2252 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? ' selected' : '' ). '>' . $city . '</option>' ;
2255 $continents_html = '' ;
2256 $continents = array_keys ( $continents );
2257 foreach ( $continents as $continent )
2258 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? ' selected' : '' ). '>' . $continent . '</option>' ;
2259 $cities_html = $cities [ $pcontinent ];
2260 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select>" ;
2261 $timezone_form .= " City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br />" ;
2262 $timezone_js = "<script>" ;
2263 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
2264 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
2265 $timezone_js .= "</script>" ;
2266 return array ( $timezone_form , $timezone_js );
2268 return array ( '' , '' );
2271 // Tells if a timezone is valid or not.
2272 // If not valid, returns false.
2273 // If system does not support timezone list, returns false.
2274 function isTZvalid ( $continent , $city )
2276 $tz = $continent . '/' . $city ;
2277 if ( function_exists ( 'timezone_identifiers_list' )) // because of old PHP version (5.1) which can be found on free.fr
2279 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone?
2284 if (! function_exists ( 'json_encode' )) {
2285 function json_encode ( $data ) {
2286 switch ( $type = gettype ( $data )) {
2290 return ( $data ? 'true' : 'false' );
2296 return '"' . addslashes ( $data ) . '"' ;
2298 $data = get_object_vars ( $data );
2300 $output_index_count = 0 ;
2301 $output_indexed = array ();
2302 $output_associative = array ();
2303 foreach ( $data as $key => $value ) {
2304 $output_indexed [] = json_encode ( $value );
2305 $output_associative [] = json_encode ( $key ) . ':' . json_encode ( $value );
2306 if ( $output_index_count !== NULL && $output_index_count ++
!== $key ) {
2307 $output_index_count = NULL ;
2310 if ( $output_index_count !== NULL ) {
2311 return '[' . implode ( ',' , $output_indexed ) . ']' ;
2313 return ' {' . implode(',', $output_associative) . '} ' ;
2316 return '' ; // Not supported
2321 // Re-write configuration file according to globals.
2322 // Requires some $GLOBALS to be set (login,hash,salt,title).
2323 // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu.
2324 // (otherwise, the function simply returns.)
2325 function writeConfig ()
2327 if ( is_file ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
2328 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
2329 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). ';' ;
2330 $config .= ' $GLOBALS [ \' titleLink \' ]=' . var_export ( $GLOBALS [ 'titleLink' ], true ). '; ' ;
2331 $config .= ' $GLOBALS [ \' redirector \' ]=' . var_export ( $GLOBALS [ 'redirector' ], true ). '; ' ;
2332 $config .= ' $GLOBALS [ \' disablesessionprotection \' ]=' . var_export ( $GLOBALS [ 'disablesessionprotection' ], true ). '; ' ;
2333 $config .= ' $GLOBALS [ \' disablejquery \' ]=' . var_export ( $GLOBALS [ 'disablejquery' ], true ). '; ' ;
2334 $config .= ' $GLOBALS [ \' privateLinkByDefault \' ]=' . var_export ( $GLOBALS [ 'privateLinkByDefault' ], true ). '; ' ;
2335 $config .= ' $GLOBALS [ \' config \' ][ \' ENABLE_RSS_PERMALINKS \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'ENABLE_RSS_PERMALINKS' ], true ). '; ' ;
2336 $config .= ' $GLOBALS [ \' config \' ][ \' ENABLE_UPDATECHECK \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'ENABLE_UPDATECHECK' ], true ). '; ' ;
2337 $config .= ' $GLOBALS [ \' config \' ][ \' DISABLE_PUBLIC_LINKS \' ]=' . var_export ( $GLOBALS [ 'config' ][ 'DISABLE_PUBLIC_LINKS' ], true ). '; ' ;
2339 if (! file_put_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ], $config ) || strcmp ( file_get_contents ( $GLOBALS [ 'config' ][ 'CONFIG_FILE' ]), $config )!= 0 )
2341 echo '<script>alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location= \' ? \' ;</script>' ;
2346 /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
2347 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
2348 The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
2349 This function is called by passing the URL:
2350 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
2351 [URL] is the URL of the link (e.g. a flickr page)
2352 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
2353 The function below will fetch the image from the webservice and store it in the cache.
2355 function genThumbnail ()
2357 // Make sure the parameters in the URL were generated by us.
2358 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
2359 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy!' );
2361 // Let's see if we don't already have the image for this URL in the cache.
2362 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
2363 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ))
2364 { // We have the thumbnail, just serve it:
2365 header ( 'Content-Type: image/jpeg' );
2366 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname );
2369 // We may also serve a blank image (if service did not respond)
2370 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
2371 if ( is_file ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname ))
2373 header ( 'Content-Type: image/gif' );
2374 echo file_get_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname );
2378 // Otherwise, generate the thumbnail.
2379 $url = $_GET [ 'url' ];
2380 $domain = parse_url ( $url , PHP_URL_HOST
);
2382 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
2384 // Crude replacement to handle new flickr domain policy (They prefer www. now)
2385 $url = str_replace ( 'http://flickr.com/' , 'http://www.flickr.com/' , $url );
2387 // Is this a link to an image, or to a flickr page ?
2389 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
2390 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
2391 preg_match ( '!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
2392 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
2394 else // This is a flickr page (html)
2396 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
2397 if ( strpos ( $httpstatus , '200 OK' )!== false )
2399 // flickr now nicely provides the URL of the thumbnail in each flickr page.
2400 preg_match ( '!<link rel= \" image_src \" href= \" (.+?) \" !' , $data , $matches );
2401 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2403 // In albums (and some other pages), the link rel="image_src" is not provided,
2404 // but flickr provides:
2405 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
2408 preg_match ( '!<meta property= \" og:image \" content= \" (.+?) \" !' , $data , $matches );
2409 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ];
2415 { // Let's download the image.
2416 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
2417 if ( strpos ( $httpstatus , '200 OK' )!== false )
2419 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2420 header ( 'Content-Type: image/jpeg' );
2427 elseif ( $domain == 'vimeo.com' )
2429 // This is more complex: we have to perform a HTTP request, then parse the result.
2430 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2431 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
2432 list ( $httpstatus , $headers , $data ) = getHTTP ( 'https://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
2433 if ( strpos ( $httpstatus , '200 OK' )!== false )
2435 $t = unserialize ( $data );
2436 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
2437 // Then we download the image and serve it to our client.
2438 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
2439 if ( strpos ( $httpstatus , '200 OK' )!== false )
2441 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname , $data ); // Save image to cache.
2442 header ( 'Content-Type: image/jpeg' );
2449 elseif ( $domain == 'ted.com' || endsWith ( $domain , '.ted.com' ))
2451 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2452 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2453 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2454 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2455 if ( strpos ( $httpstatus , '200 OK' )!== false )
2457 // Extract the link to the thumbnail
2458 preg_match ( '!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!' , $data , $matches );
2459 if (! empty ( $matches [ 1 ]))
2460 { // Let's download the image.
2461 $imageurl = $matches [ 1 ];
2462 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2463 if ( strpos ( $httpstatus , '200 OK' )!== false )
2465 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2466 file_put_contents ( $filepath , $data ); // Save image to cache.
2467 if ( resizeImage ( $filepath ))
2469 header ( 'Content-Type: image/jpeg' );
2470 echo file_get_contents ( $filepath );
2478 elseif ( $domain == 'xkcd.com' || endsWith ( $domain , '.xkcd.com' ))
2480 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2481 // http://xkcd.com/327/
2482 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2483 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 5 );
2484 if ( strpos ( $httpstatus , '200 OK' )!== false )
2486 // Extract the link to the thumbnail
2487 preg_match ( '!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!' , $data , $matches );
2488 if (! empty ( $matches [ 1 ]))
2489 { // Let's download the image.
2490 $imageurl = $matches [ 1 ];
2491 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 20 ); // No control on image size, so wait long enough.
2492 if ( strpos ( $httpstatus , '200 OK' )!== false )
2494 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2495 file_put_contents ( $filepath , $data ); // Save image to cache.
2496 if ( resizeImage ( $filepath ))
2498 header ( 'Content-Type: image/jpeg' );
2499 echo file_get_contents ( $filepath );
2509 // For all other domains, we try to download the image and make a thumbnail.
2510 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 30 ); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2511 if ( strpos ( $httpstatus , '200 OK' )!== false )
2513 $filepath = $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $thumbname ;
2514 file_put_contents ( $filepath , $data ); // Save image to cache.
2515 if ( resizeImage ( $filepath ))
2517 header ( 'Content-Type: image/jpeg' );
2518 echo file_get_contents ( $filepath );
2525 // Otherwise, return an empty image (8x8 transparent gif)
2526 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
2527 file_put_contents ( $GLOBALS [ 'config' ][ 'CACHEDIR' ]. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
2528 header ( 'Content-Type: image/gif' );
2532 // Make a thumbnail of the image (to width: 120 pixels)
2533 // Returns true if success, false otherwise.
2534 function resizeImage ( $filepath )
2536 if (! function_exists ( 'imagecreatefromjpeg' )) return false ; // GD not present: no thumbnail possible.
2538 // Trick: some stupid people rename GIF as JPEG... or else.
2539 // So we really try to open each image type whatever the extension is.
2540 $header = file_get_contents ( $filepath , false , NULL , 0 , 256 ); // Read first 256 bytes and try to sniff file type.
2542 $i = strpos ( $header , 'GIF8' ); if (( $i !== false ) && ( $i == 0 )) $im = imagecreatefromgif ( $filepath ); // Well this is crude, but it should be enough.
2543 $i = strpos ( $header , 'PNG' ); if (( $i !== false ) && ( $i == 1 )) $im = imagecreatefrompng ( $filepath );
2544 $i = strpos ( $header , 'JFIF' ); if ( $i !== false ) $im = imagecreatefromjpeg ( $filepath );
2545 if (! $im ) return false ; // Unable to open image (corrupted or not an image)
2548 $ystart = 0 ; $yheight = $h ;
2549 if ( $h > $w ) { $ystart
= ( $h
/ 2 )-( $w
/ 2 ); $yheight
= $w
/ 2 ; }
2550 $nw = 120 ; // Desired width
2551 $nh = min ( floor (( $h * $nw )/ $w ), 120 ); // Compute new width/height, but maximum 120 pixels height.
2553 $im2 = imagecreatetruecolor ( $nw , $nh );
2554 imagecopyresampled ( $im2 , $im , 0 , 0 , 0 , $ystart , $nw , $nh , $w , $yheight );
2555 imageinterlace ( $im2 , true ); // For progressive JPEG.
2556 $tempname = $filepath . '_TEMP.jpg' ;
2557 imagejpeg ( $im2 , $tempname , 90 );
2561 rename ( $tempname , $filepath ); // Overwrite original picture with thumbnail.
2565 // Invalidate caches when the database is changed or the user logs out.
2566 // (e.g. tags cache).
2567 function invalidateCaches ()
2569 unset ( $_SESSION [ 'tags' ]); // Purge cache attached to session.
2570 pageCache
:: purgeCache (); // Purge page cache shared by sessions.
2573 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
2574 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
2575 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }
2576 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=dailyrss' )) { showDailyRSS (); exit ; }
2577 if ( isset ( $_SERVER [ "QUERY_STRING" ]) && startswith ( $_SERVER [ "QUERY_STRING" ], 'do=daily' )) { showDaily (); exit ; }
2578 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= $GLOBALS [ 'config' ][ 'LINKS_PER_PAGE' ];