]>
git.immae.eu Git - github/shaarli/Shaarli.git/blob - index.php
6732083cdcd61baf3afb2636af1c2e301584b893
2 // Shaarli 0.0.22 beta - Shaare your links...
3 // The personal, minimalist, super-fast, no-database delicious clone. By sebsauvage.net
4 // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
5 // Licence: http://www.opensource.org/licenses/zlib-license.php
9 // -----------------------------------------------------------------------------------------------
11 define ( 'DATADIR' , 'data' ); // Data subdirectory
12 define ( 'CONFIG_FILE' , DATADIR
. '/config.php' ); // Configuration file (user login/password)
13 define ( 'DATASTORE' , DATADIR
. '/datastore.php' ); // Data storage file.
14 define ( 'LINKS_PER_PAGE' , 20 ); // Default links per page.
15 define ( 'IPBANS_FILENAME' , DATADIR
. '/ipbans.php' ); // File storage for failures and bans.
16 define ( 'BAN_AFTER' , 4 ); // Ban IP after this many failures.
17 define ( 'BAN_DURATION' , 1800 ); // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
18 define ( 'OPEN_SHAARLI' , false ); // If true, anyone can add/edit/delete links without having to login
19 define ( 'HIDE_TIMESTAMPS' , false ); // If true, the moment when links were saved are not shown to users that are not logged in.
20 define ( 'ENABLE_THUMBNAILS' , true ); // Enable thumbnails in links.
21 define ( 'CACHEDIR' , 'cache' ); // Cache directory for thumbnails for SLOW services (like flickr)
23 // -----------------------------------------------------------------------------------------------
24 // Program config (touch at your own risks !)
25 define ( 'UPDATECHECK_FILENAME' , DATADIR
. '/lastupdatecheck.txt' ); // For updates check of Shaarli.
26 define ( 'UPDATECHECK_INTERVAL' , 86400 ); // Updates check frequency for Shaarli. 86400 seconds=24 hours
27 ini_set ( 'max_input_time' , '60' ); // High execution time in case of problematic imports/exports.
28 ini_set ( 'memory_limit' , '128M' ); // Try to set max upload file size and read (May not work on some hosts).
29 ini_set ( 'post_max_size' , '16M' );
30 ini_set ( 'upload_max_filesize' , '16M' );
31 define ( 'PHPPREFIX' , '<?php /* ' ); // Prefix to encapsulate data in php code.
32 define ( 'PHPSUFFIX' , ' */ ?>' ); // Suffix to encapsulate data in php code.
33 $STARTTIME = microtime ( true ); // Measure page execution time.
35 error_reporting ( E_ALL^E_WARNING
); // See all error except warnings.
36 //error_reporting(-1); // See all errors (for debugging only)
39 // In case stupid admin has left magic_quotes enabled in php.ini:
40 if ( get_magic_quotes_gpc ())
42 function stripslashes_deep ( $value ) { $value
= is_array ( $value
) ? array_map ( 'stripslashes_deep' , $value
) : stripslashes ( $value
); return $value
; }
43 $_POST = array_map ( 'stripslashes_deep' , $_POST );
44 $_GET = array_map ( 'stripslashes_deep' , $_GET );
45 $_COOKIE = array_map ( 'stripslashes_deep' , $_COOKIE );
47 // Prevent caching: (yes, it's ugly)
48 header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
49 header ( "Cache-Control: no-store, no-cache, must-revalidate" );
50 header ( "Cache-Control: post-check=0, pre-check=0" , false );
51 header ( "Pragma: no-cache" );
52 define ( 'shaarli_version' , '0.0.22 beta' );
53 if (! is_dir ( DATADIR
)) { mkdir ( DATADIR
, 0705 ); chmod ( DATADIR
, 0705 ); }
54 if (! is_dir ( CACHEDIR
)) { mkdir ( CACHEDIR
, 0705 ); chmod ( CACHEDIR
, 0705 ); }
55 if (! is_file ( DATADIR
. '/.htaccess' )) { file_put_contents ( DATADIR
. '/.htaccess' , "Allow from none \n Deny from all \n " ); } // Protect data files.
56 if (! is_file ( CACHEDIR
. '/.htaccess' )) { file_put_contents ( CACHEDIR
. '/.htaccess' , "Allow from none \n Deny from all \n " ); } // Protect data files.
57 if (! is_file ( CONFIG_FILE
)) install ();
58 require CONFIG_FILE
; // Read login/password hash into $GLOBALS.
59 // Small protection against dodgy config files:
60 if ( empty ( $GLOBALS [ 'title' ])) $GLOBALS [ 'title' ]= 'Shared links on ' . htmlspecialchars ( serverUrl (). $_SERVER [ 'SCRIPT_NAME' ]);
61 if ( empty ( $GLOBALS [ 'timezone' ])) $GLOBALS [ 'timezone' ]= date_default_timezone_get ();
62 autoLocale (); // Sniff browser language and set date format accordingly.
63 header ( 'Content-Type: text/html; charset=utf-8' ); // We use UTF-8 for proper international characters handling.
67 function checkphpversion ()
69 if ( version_compare ( PHP_VERSION
, '5.1.0' ) < 0 )
71 header ( 'Content-Type: text/plain; charset=utf-8' );
72 echo 'Your server supports php ' . PHP_VERSION
. '. Shaarli requires at last php 5.1.0, and thus cannot run. Sorry.' ;
77 // Checks if an update is available for Shaarli.
78 // (at most once a day, and only for registered user.)
79 // Output: '' = no new version.
80 // other= the available version.
81 function checkUpdate ()
83 if (! isLoggedIn ()) return '' ; // Do not check versions for visitors.
85 // Get latest version number at most once a day.
86 if (! is_file ( UPDATECHECK_FILENAME
) || ( filemtime ( UPDATECHECK_FILENAME
)< time ()-( UPDATECHECK_INTERVAL
)))
88 $version = shaarli_version
;
89 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://sebsauvage.net/files/shaarli_version.txt' , 2 );
90 if ( strpos ( $httpstatus , '200 OK' )) $version = $data ;
91 // If failed, nevermind. We don't want to bother the user with that.
92 file_put_contents ( UPDATECHECK_FILENAME
, $version ); // touch file date
95 $newestversion = file_get_contents ( UPDATECHECK_FILENAME
);
96 if ( version_compare ( $newestversion , shaarli_version
)== 1 ) return $newestversion ;
100 // -----------------------------------------------------------------------------------------------
102 function logm ( $message )
104 $t = strval ( date ( 'Y/m/d_H:i:s' )). ' - ' . $_SERVER [ "REMOTE_ADDR" ]. ' - ' . strval ( $message ). " \n " ;
105 file_put_contents ( DATADIR
. '/log.txt' , $t , FILE_APPEND
);
108 // ------------------------------------------------------------------------------------------
109 // Sniff browser language to display dates in the right format automatically.
110 // (Note that is may not work on your server if the corresponding local is not installed.)
111 function autoLocale ()
113 $loc = 'en_US' ; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
114 if ( isset ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
115 { // (It's a bit crude, but it works very well. Prefered language is always presented first.)
116 if ( preg_match ( '/([a-z] {2} (-[a-z] {2} )?)/i' , $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ], $matches )) $loc = $matches [ 1 ];
118 setlocale ( LC_TIME
, $loc ); // LC_TIME = Set local for date/time format only.
121 // ------------------------------------------------------------------------------------------
122 // Session management
123 define ( 'INACTIVITY_TIMEOUT' , 3600 ); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
124 ini_set ( 'session.use_cookies' , 1 ); // Use cookies to store session.
125 ini_set ( 'session.use_only_cookies' , 1 ); // Force cookies for session (phpsessionID forbidden in URL)
126 ini_set ( 'session.use_trans_sid' , false ); // Prevent php to use sessionID in URL if cookies are disabled.
127 session_name ( 'shaarli' );
130 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
133 $ip = $_SERVER [ "REMOTE_ADDR" ];
134 // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
135 if ( isset ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_X_FORWARDED_FOR' ]; }
136 if ( isset ( $_SERVER [ 'HTTP_CLIENT_IP' ])) { $ip
= $ip
. '_' . $_SERVER
[ 'HTTP_CLIENT_IP' ]; }
140 // Check that user/password is correct.
141 function check_auth ( $login , $password )
143 $hash = sha1 ( $password . $login . $GLOBALS [ 'salt' ]);
144 if ( $login == $GLOBALS [ 'login' ] && $hash == $GLOBALS [ 'hash' ])
145 { // Login/password is correct.
146 $_SESSION [ 'uid' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // generate unique random number (different than phpsessionid)
147 $_SESSION [ 'ip' ]= allIPs (); // We store IP address(es) of the client to make sure session is not hijacked.
148 $_SESSION [ 'username' ]= $login ;
149 $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Set session expiration.
150 logm ( 'Login successful' );
153 logm ( 'Login failed for user ' . $login );
157 // Returns true if the user is logged in.
158 function isLoggedIn ()
160 if ( OPEN_SHAARLI
) return true ;
162 // If session does not exist on server side, or IP address has changed, or session has expired, logout.
163 if ( empty ( $_SESSION [ 'uid' ]) || $_SESSION [ 'ip' ]!= allIPs () || time ()>= $_SESSION [ 'expires_on' ])
168 if (! empty ( $_SESSION [ 'longlastingsession' ])) $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // In case of "Stay signed in" checked.
169 else $_SESSION [ 'expires_on' ]= time () +INACTIVITY_TIMEOUT
; // Standard session expiration date.
175 function logout () { if ( isset ( $_SESSION
)) { unset ( $_SESSION
[ 'uid' ]); unset ( $_SESSION
[ 'ip' ]); unset ( $_SESSION
[ 'username' ]);} }
178 // ------------------------------------------------------------------------------------------
179 // Brute force protection system
180 // Several consecutive failed logins will ban the IP address for 30 minutes.
181 if (! is_file ( IPBANS_FILENAME
)) file_put_contents ( IPBANS_FILENAME
, "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( array ( 'FAILURES' => array (), 'BANS' => array ()), true ). "; \n ?>" );
182 include IPBANS_FILENAME
;
183 // Signal a failed login. Will ban the IP if too many failures:
184 function ban_loginFailed ()
186 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
187 if (! isset ( $gb [ 'FAILURES' ][ $ip ])) $gb [ 'FAILURES' ][ $ip ]= 0 ;
188 $gb [ 'FAILURES' ][ $ip ] ++
;
189 if ( $gb [ 'FAILURES' ][ $ip ]>( BAN_AFTER
- 1 ))
191 $gb [ 'BANS' ][ $ip ]= time () +BAN_DURATION
;
192 logm ( 'IP address banned from login' );
194 $GLOBALS [ 'IPBANS' ] = $gb ;
195 file_put_contents ( IPBANS_FILENAME
, "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
198 // Signals a successful login. Resets failed login counter.
199 function ban_loginOk ()
201 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
202 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
203 $GLOBALS [ 'IPBANS' ] = $gb ;
204 file_put_contents ( IPBANS_FILENAME
, "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
207 // Checks if the user CAN login. If 'true', the user can try to login.
208 function ban_canLogin ()
210 $ip = $_SERVER [ "REMOTE_ADDR" ]; $gb = $GLOBALS [ 'IPBANS' ];
211 if ( isset ( $gb [ 'BANS' ][ $ip ]))
213 // User is banned. Check if the ban has expired:
214 if ( $gb [ 'BANS' ][ $ip ]<= time ())
215 { // Ban expired, user can try to login again.
217 unset ( $gb [ 'FAILURES' ][ $ip ]); unset ( $gb [ 'BANS' ][ $ip ]);
218 file_put_contents ( IPBANS_FILENAME
, "<?php \n\$ GLOBALS['IPBANS']=" . var_export ( $gb , true ). "; \n ?>" );
219 return true ; // Ban has expired, user can login.
221 return false ; // User is banned.
223 return true ; // User is not banned.
226 // ------------------------------------------------------------------------------------------
227 // Process login form: Check if login/password is correct.
228 if ( isset ( $_POST [ 'login' ]))
230 if (! ban_canLogin ()) die ( 'I said: NO. You are banned for the moment. Go away.' );
231 if ( isset ( $_POST [ 'password' ]) && tokenOk ( $_POST [ 'token' ]) && ( check_auth ( $_POST [ 'login' ], $_POST [ 'password' ])))
232 { // Login/password is ok.
234 // If user wants to keep the session cookie even after the browser closes:
235 if (! empty ( $_POST [ 'longlastingsession' ]))
237 $_SESSION [ 'longlastingsession' ]= 31536000 ; // (31536000 seconds = 1 year)
238 $_SESSION [ 'expires_on' ]= time () +
$_SESSION [ 'longlastingsession' ]; // Set session expiration on server-side.
239 session_set_cookie_params ( $_SESSION [ 'longlastingsession' ]); // Set session cookie expiration on client side
240 session_regenerate_id ( true ); // Send cookie with new expiration date to browser.
242 else // Standard session expiration (=when browser closes)
244 session_set_cookie_params ( 0 ); // 0 means "When browser closes"
245 session_regenerate_id ( true );
247 // Optional redirect after login:
248 if ( isset ( $_GET [ 'post' ])) { header ( 'Location: ?post=' . urlencode ( $_GET
[ 'post' ]).(! empty ( $_GET
[ 'title' ])? '&title=' . urlencode ( $_GET
[ 'title' ]): '' ).(! empty ( $_GET
[ 'source' ])? '&source=' . urlencode ( $_GET
[ 'source' ]): '' )); exit ; }
249 if ( isset ( $_POST [ 'returnurl' ]))
251 if ( endsWith ( $_POST [ 'returnurl' ], '?do=login' )) { header ( 'Location: ?' ); exit ; } // Prevent loops over login screen.
252 header ( 'Location: ' . $_POST [ 'returnurl' ]); exit ;
254 header ( 'Location: ?' ); exit ;
259 echo '<script language="JavaScript">alert("Wrong login/password.");document.location= \' ?do=login \' ;</script>' ; // Redirect to login screen.
264 // ------------------------------------------------------------------------------------------
265 // Misc utility functions:
267 // Returns the server URL (including port and http/https), without path.
268 // eg. "http://myserver.com:8080"
269 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
272 $serverport = ( $_SERVER [ "SERVER_PORT" ]!= '80' ? ':' . $_SERVER [ "SERVER_PORT" ] : '' );
273 return 'http' .(! empty ( $_SERVER [ 'HTTPS' ])? 's' : '' ). '://' . $_SERVER [ "SERVER_NAME" ]. $serverport ;
276 // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
277 function return_bytes ( $val )
279 $val = trim ( $val ); $last = strtolower ( $val [ strlen ( $val )- 1 ]);
282 case 'g' : $val *= 1024 ;
283 case 'm' : $val *= 1024 ;
284 case 'k' : $val *= 1024 ;
289 // Try to determine max file size for uploads (POST).
290 // Returns an integer (in bytes)
291 function getMaxFileSize ()
293 $size1 = return_bytes ( ini_get ( 'post_max_size' ));
294 $size2 = return_bytes ( ini_get ( 'upload_max_filesize' ));
295 // Return the smaller of two:
296 $maxsize = min ( $size1 , $size2 );
297 // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000)
301 // Tells if a string start with a substring or not.
302 function startsWith ( $haystack , $needle , $case = true )
304 if ( $case ){ return ( strcmp ( substr ( $haystack
, 0 , strlen ( $needle
)), $needle
)=== 0 );}
305 return ( strcasecmp ( substr ( $haystack , 0 , strlen ( $needle )), $needle )=== 0 );
308 // Tells if a string ends with a substring or not.
309 function endsWith ( $haystack , $needle , $case = true )
311 if ( $case ){ return ( strcmp ( substr ( $haystack
, strlen ( $haystack
) - strlen ( $needle
)), $needle
)=== 0 );}
312 return ( strcasecmp ( substr ( $haystack , strlen ( $haystack ) - strlen ( $needle )), $needle )=== 0 );
315 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
316 (used to build the ADD_DATE attribute in Netscape-bookmarks file)
317 PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
318 function linkdate2timestamp ( $linkdate )
321 $r = sscanf ( $linkdate , '%4d%2d%2d_%2d%2d%2d' , $Y , $M , $D , $h , $m , $s );
322 return mktime ( $h , $m , $s , $M , $D , $Y );
325 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
326 (used to build the pubDate attribute in RSS feed.) */
327 function linkdate2rfc822 ( $linkdate )
329 return date ( 'r' , linkdate2timestamp ( $linkdate )); // 'r' is for RFC822 date format.
332 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
333 (used to build the updated tags in ATOM feed.) */
334 function linkdate2iso8601 ( $linkdate )
336 return date ( 'c' , linkdate2timestamp ( $linkdate )); // 'c' is for ISO 8601 date format.
339 /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
340 (used to display link date on screen)
341 The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
342 function linkdate2locale ( $linkdate )
344 return utf8_encode ( strftime ( '%c' , linkdate2timestamp ( $linkdate ))); // %c is for automatic date format according to locale.
345 // Note that if you use a local which is not installed on your webserver,
346 // the date will not be displayed in the chosen locale, but probably in US notation.
349 // Parse HTTP response headers and return an associative array.
350 function http_parse_headers ( $headers )
353 foreach ( $headers as $header )
355 $i = strpos ( $header , ': ' );
358 $key = substr ( $header , 0 , $i );
359 $value = substr ( $header , $i +
2 , strlen ( $header )- $i-2 );
367 Input: $url : url to get (http://...)
368 $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
369 Output: An array. [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message
370 [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
372 Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
373 if (strpos($httpstatus,'200 OK'))
374 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
376 echo 'There was an error: '.htmlspecialchars($httpstatus)
378 function getHTTP ( $url , $timeout = 30 )
382 $options = array ( 'http' => array ( 'method' => 'GET' , 'timeout' => $timeout )); // Force network timeout
383 $context = stream_context_create ( $options );
384 $data = file_get_contents ( $url , false , $context ,- 1 , 2000000 ); // We download at most 2 Mb from source.
385 if (! $data ) { $lasterror
= error_get_last (); return array ( $lasterror
[ 'message' ], array (), '' ); }
386 $httpStatus = $http_response_header [ 0 ]; // eg. "HTTP/1.1 200 OK"
387 $responseHeaders = http_parse_headers ( $http_response_header );
388 return array ( $httpStatus , $responseHeaders , $data );
390 catch ( Exception
$e ) // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
392 return array ( $e- > getMessage (), '' , '' );
396 // Extract title from an HTML document.
397 // (Returns an empty string if not found.)
398 function html_extract_title ( $html )
400 return preg_match ( '!<title>(.*?)</title>!i' , $html , $matches ) ? $matches [ 1 ] : '' ;
403 // ------------------------------------------------------------------------------------------
404 // Token management for XSRF protection
405 // Token should be used in any form which acts on data (create,update,delete,import...).
406 if (! isset ( $_SESSION [ 'tokens' ])) $_SESSION [ 'tokens' ]= array (); // Token are attached to the session.
411 $rnd = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // We generate a random string.
412 $_SESSION [ 'tokens' ][ $rnd ]= 1 ; // Store it on the server side.
416 // Tells if a token is ok. Using this function will destroy the token.
418 function tokenOk ( $token )
420 if ( isset ( $_SESSION [ 'tokens' ][ $token ]))
422 unset ( $_SESSION [ 'tokens' ][ $token ]); // Token is used: destroy it.
423 return true ; // Token is ok.
425 return false ; // Wrong token, or already used.
428 // ------------------------------------------------------------------------------------------
429 /* Data storage for links.
430 This object behaves like an associative array.
432 $mylinks = new linkdb();
433 echo $mylinks['20110826_161819']['title'];
434 foreach($mylinks as $link)
435 echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
437 We implement 3 interfaces:
438 - ArrayAccess so that this object behaves like an associative array.
439 - Iterator so that this object can be used in foreach() loops.
440 - Countable interface so that we can do a count() on this object.
442 class linkdb
implements Iterator
, Countable
, ArrayAccess
445 private $links ; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...)
446 private $urls ; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
447 private $keys ; // List of linkdate keys (for the Iterator interface implementation)
448 private $position ; // Position in the $this->keys array. (for the Iterator interface implementation.)
449 private $loggedin ; // Is the used logged in ? (used to filter private links)
452 function __construct ( $isLoggedIn )
453 // Input : $isLoggedIn : is the used logged in ?
455 $this- > loggedin
= $isLoggedIn ;
456 $this- > checkdb (); // Make sure data file exists.
457 $this- > readdb (); // Then read it.
460 // ---- Countable interface implementation
461 public function count () { return count ( $this
-> links
); }
463 // ---- ArrayAccess interface implementation
464 public function offsetSet ( $offset , $value )
466 if (! $this- > loggedin
) die ( 'You are not authorized to add a link.' );
467 if ( empty ( $value [ 'linkdate' ]) || empty ( $value [ 'url' ])) die ( 'Internal Error: A link should always have a linkdate and url.' );
468 if ( empty ( $offset )) die ( 'You must specify a key.' );
469 $this- > links
[ $offset ] = $value ;
470 $this- > urls
[ $value [ 'url' ]]= $offset ;
472 public function offsetExists ( $offset ) { return array_key_exists ( $offset
, $this
-> links
); }
473 public function offsetUnset ( $offset )
475 if (! $this- > loggedin
) die ( 'You are not authorized to delete a link.' );
476 $url = $this- > links
[ $offset ][ 'url' ]; unset ( $this- > urls
[ $url ]);
477 unset ( $this- > links
[ $offset ]);
479 public function offsetGet ( $offset ) { return isset ( $this
-> links
[ $offset
]) ? $this
-> links
[ $offset
] : null ; }
481 // ---- Iterator interface implementation
482 function rewind () { $this
-> keys
= array_keys ( $this
-> links
); rsort ( $this
-> keys
); $this
-> position
= 0 ; } // Start over for iteration, ordered by date (latest first).
483 function key () { return $this
-> keys
[ $this
-> position
]; } // current key
484 function current () { return $this
-> links
[ $this
-> keys
[ $this
-> position
]]; } // current value
485 function next () { ++$this
-> position
; } // go to next item
486 function valid () { return isset ( $this
-> keys
[ $this
-> position
]); } // Check if current position is valid.
489 private function checkdb () // Check if db directory and file exists.
491 if (! file_exists ( DATASTORE
)) // Create a dummy database for example.
493 $this- > links
= array ();
494 $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' );
495 $this- > links
[ $link [ 'linkdate' ]] = $link ;
496 $link = array ( 'title' => 'My secret stuff... - Pastebin.com' , 'url' => 'http://pastebin.com/smCEEeSn' , 'description' => 'SShhhh!! I \' m a private link only YOU can see. You can delete me too.' , 'private' => 1 , 'linkdate' => '20110914_074522' , 'tags' => 'secretstuff' );
497 $this- > links
[ $link [ 'linkdate' ]] = $link ;
498 file_put_contents ( DATASTORE
, PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
); // Write database to disk
502 // Read database from disk to memory
503 private function readdb ()
506 $this- > links
=( file_exists ( DATASTORE
) ? unserialize ( gzinflate ( base64_decode ( substr ( file_get_contents ( DATASTORE
), strlen ( PHPPREFIX
),- strlen ( PHPSUFFIX
))))) : array () );
507 // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
509 // If user is not logged in, filter private links.
510 if (! $this- > loggedin
)
513 foreach ( $this- > links
as $link ) { if ( $link
[ 'private' ]!= 0 ) $toremove
[]= $link
[ 'linkdate' ]; }
514 foreach ( $toremove as $linkdate ) { unset ( $this
-> links
[ $linkdate
]); }
517 // Keep the list of the mapping URLs-->linkdate up-to-date.
519 foreach ( $this- > links
as $link ) { $this
-> urls
[ $link
[ 'url' ]]= $link
[ 'linkdate' ]; }
522 // Save database from memory to disk.
523 public function savedb ()
525 if (! $this- > loggedin
) die ( 'You are not authorized to change the database.' );
526 file_put_contents ( DATASTORE
, PHPPREFIX
. base64_encode ( gzdeflate ( serialize ( $this- > links
))). PHPSUFFIX
);
529 // Returns the link for a given URL (if it exists). false it does not exist.
530 public function getLinkFromUrl ( $url )
532 if ( isset ( $this- > urls
[ $url ])) return $this- > links
[ $this- > urls
[ $url ]];
536 // Case insentitive search among links (in url, title and description). Returns filtered list of links.
537 // eg. print_r($mydb->filterFulltext('hollandais'));
538 public function filterFulltext ( $searchterms )
540 // FIXME: explode(' ',$searchterms) and perform a AND search.
541 // FIXME: accept double-quotes to search for a string "as is" ?
543 $s = strtolower ( $searchterms );
544 foreach ( $this- > links
as $l )
546 $found = strpos ( strtolower ( $l [ 'title' ]), $s ) || strpos ( strtolower ( $l [ 'description' ]), $s ) || strpos ( strtolower ( $l [ 'url' ]), $s ) || strpos ( strtolower ( $l [ 'tags' ]), $s );
547 if ( $found ) $filtered [ $l [ 'linkdate' ]] = $l ;
554 // You can specify one or more tags (tags can be separated by space or comma).
555 // eg. print_r($mydb->filterTags('linux programming'));
556 public function filterTags ( $tags , $casesensitive = false )
558 $t = str_replace ( ',' , ' ' ,( $casesensitive ? $tags : strtolower ( $tags )));
559 $searchtags = explode ( ' ' , $t );
561 foreach ( $this- > links
as $l )
563 $linktags = explode ( ' ' ,( $casesensitive ? $l [ 'tags' ]: strtolower ( $l [ 'tags' ])));
564 if ( count ( array_intersect ( $linktags , $searchtags )) == count ( $searchtags ))
565 $filtered [ $l [ 'linkdate' ]] = $l ;
571 // Returns the list of all tags
572 // Output: associative array key=tags, value=0
573 public function allTags ()
576 foreach ( $this- > links
as $link )
577 foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag )
578 if (! empty ( $tag )) $tags [ $tag ]=( empty ( $tags [ $tag ]) ? 1 : $tags [ $tag ] +
1 );
579 arsort ( $tags ); // Sort tags by usage (most used tag first)
584 // ------------------------------------------------------------------------------------------
585 // Ouput the last 50 links in RSS 2.0 format.
590 // Optionnaly filter the results:
591 $linksToDisplay = array ();
592 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
593 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
594 else $linksToDisplay = $LINKSDB ;
596 header ( 'Content-Type: application/rss+xml; charset=utf-8' );
597 $pageaddr = htmlspecialchars ( serverUrl (). $_SERVER [ "SCRIPT_NAME" ]);
598 echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">' ;
599 echo '<channel><title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title><link>' . $pageaddr . '</link>' ;
600 echo '<description>Shared links</description><language></language><copyright>' . $pageaddr . '</copyright>' . " \n\n " ;
602 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
603 while ( $i < 50 && $i < count ( $keys ))
605 $link = $linksToDisplay [ $keys [ $i ]];
606 $rfc822date = linkdate2rfc822 ( $link [ 'linkdate' ]);
607 echo '<item><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><guid>' . htmlspecialchars ( $link [ 'url' ]). '</guid><link>' . htmlspecialchars ( $link [ 'url' ]). '</link>' ;
608 if (! HIDE_TIMESTAMPS
|| isLoggedIn ()) echo '<pubDate>' . htmlspecialchars ( $rfc822date ). '</pubDate>' ;
609 echo '<description><![CDATA[' . nl2br ( htmlspecialchars ( $link [ 'description' ])). ']]></description></item>' . " \n " ;
612 echo '</channel></rss>' ;
616 // ------------------------------------------------------------------------------------------
617 // Ouput the last 50 links in ATOM format.
622 // Optionnaly filter the results:
623 $linksToDisplay = array ();
624 if (! empty ( $_GET [ 'searchterm' ])) $linksToDisplay = $LINKSDB- > filterFulltext ( $_GET [ 'searchterm' ]);
625 elseif (! empty ( $_GET [ 'searchtags' ])) $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
626 else $linksToDisplay = $LINKSDB ;
628 header ( 'Content-Type: application/atom+xml; charset=utf-8' );
629 $pageaddr = htmlspecialchars ( serverUrl (). $_SERVER [ "SCRIPT_NAME" ]);
633 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // No, I can't use array_keys().
634 while ( $i < 50 && $i < count ( $keys ))
636 $link = $linksToDisplay [ $keys [ $i ]];
637 $iso8601date = linkdate2iso8601 ( $link [ 'linkdate' ]);
638 $latestDate = max ( $latestDate , $iso8601date );
639 $entries .= '<entry><title>' . htmlspecialchars ( $link [ 'title' ]). '</title><link href="' . htmlspecialchars ( $link [ 'url' ]). '"/><id>' . htmlspecialchars ( $link [ 'url' ]). '</id>' ;
640 if (! HIDE_TIMESTAMPS
|| isLoggedIn ()) $entries .= '<updated>' . htmlspecialchars ( $iso8601date ). '</updated>' ;
641 $entries .= '<summary>' . nl2br ( htmlspecialchars ( $link [ 'description' ])). '</summary></entry>' . " \n " ;
644 $feed = '<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">' ;
645 $feed .= '<title>' . htmlspecialchars ( $GLOBALS [ 'title' ]). '</title>' ;
646 if (! HIDE_TIMESTAMPS
|| isLoggedIn ()) $feed .= '<updated>' . htmlspecialchars ( $latestDate ). '</updated>' ;
647 $feed .= '<link href="' . htmlspecialchars ( $pageaddr ). '" />' ;
648 $feed .= '<author><uri>' . htmlspecialchars ( $pageaddr ). '</uri></author>' ;
649 $feed .= '<id>' . htmlspecialchars ( $pageaddr ). '</id>' . " \n\n " ; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
656 // ------------------------------------------------------------------------------------------
658 function renderPage ()
663 // Well... rendering the page would be 100x better with the excellent Smarty, but I don't want to tie this minimalist project to 100+ files.
664 // So I use a custom templating system.
666 // -------- Display login form.
667 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=login' ))
669 if ( OPEN_SHAARLI
) { header ( 'Location: ?' ); exit ; } // No need to login for open Shaarli
672 $loginform = '<div id="headerform">You have been banned from login after too many failed attempts. Try later.</div>' ;
673 $data = array ( 'pageheader' => $loginform , 'body' => '' , 'onload' => '' );
677 $returnurl_html = ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? '<input type="hidden" name="returnurl" value="' . htmlspecialchars ( $_SERVER [ 'HTTP_REFERER' ]). '">' : '' );
678 $loginform = '<div id="headerform"><form method="post" name="loginform">Login: <input type="text" name="login"> Password : <input type="password" name="password"> <input type="submit" value="Login" class="bigbutton"><br>' ;
679 $loginform .= '<input style="margin:10 0 0 40;" type="checkbox" name="longlastingsession"> Stay signed in (Do not check on public computers)<input type="hidden" name="token" value="' . getToken (). '">' . $returnurl_html . '</form></div>' ;
680 $onload = 'onload="document.loginform.login.focus();"' ;
681 $data = array ( 'pageheader' => $loginform , 'body' => '' , 'onload' => $onload );
685 // -------- User wants to logout.
686 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=logout' ))
690 header ( 'Location: ?' );
694 // -------- Tag cloud
695 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tagcloud' ))
697 $tags = $LINKSDB- > allTags ();
698 // We sort tags alphabetically, then choose a font size according to count.
699 // First, find max value.
700 $maxcount = 0 ; foreach ( $tags as $key => $value ) $maxcount = max ( $maxcount , $value );
703 foreach ( $tags as $key => $value )
705 $size = max ( 40 * $value / $maxcount , 8 ); // Minimum size 8.
706 $colorvalue = 128 - ceil ( 127 * $value / $maxcount );
707 $color = 'rgb(' . $colorvalue . ',' . $colorvalue . ',' . $colorvalue . ')' ;
708 $cloud .= '<span style="color:#99f; font-size:9pt; padding-left:5px; padding-right:2px;">' . $value . '</span><a href="?searchtags=' . htmlspecialchars ( $key ). '" style="font-size:' . $size . 'pt; font-weight:bold; color:' . $color . ';">' . htmlspecialchars ( $key ). '</a> ' ;
710 $cloud = '<div id="cloudtag">' . $cloud . '</div>' ;
711 $data = array ( 'pageheader' => '' , 'body' => $cloud , 'onload' => '' );
716 // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
717 if ( isset ( $_GET [ 'addtag' ]))
719 // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
720 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?searchtags=' . urlencode ( $_GET
[ 'addtag' ])); exit ; } // In case browser does not send HTTP_REFERER
721 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
722 $params [ 'searchtags' ] = ( empty ( $params [ 'searchtags' ]) ? trim ( $_GET [ 'addtag' ]) : trim ( $params [ 'searchtags' ]). ' ' . urlencode ( trim ( $_GET [ 'addtag' ])));
723 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
724 header ( 'Location: ?' . http_build_query ( $params ));
728 // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
729 if ( isset ( $_GET [ 'removetag' ]))
731 // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
732 if ( empty ( $_SERVER [ 'HTTP_REFERER' ])) { header ( 'Location: ?' ); exit ; } // In case browser does not send HTTP_REFERER
733 parse_str ( parse_url ( $_SERVER [ 'HTTP_REFERER' ], PHP_URL_QUERY
), $params );
734 if ( isset ( $params [ 'searchtags' ]))
736 $tags = explode ( ' ' , $params [ 'searchtags' ]);
737 $tags = array_diff ( $tags , array ( $_GET [ 'removetag' ])); // Remove value from array $tags.
738 if ( count ( $tags )== 0 ) unset ( $params [ 'searchtags' ]); else $params [ 'searchtags' ] = implode ( ' ' , $tags );
739 unset ( $params [ 'page' ]); // We also remove page (keeping the same page has no sense, since the results are different)
741 header ( 'Location: ?' . http_build_query ( $params ));
745 // -------- User wants to change the number of links per page (linksperpage=...)
746 if ( isset ( $_GET [ 'linksperpage' ]))
748 if ( is_numeric ( $_GET [ 'linksperpage' ])) { $_SESSION
[ 'LINKS_PER_PAGE' ]= abs ( intval ( $_GET
[ 'linksperpage' ])); }
749 header ( 'Location: ' .( empty ( $_SERVER [ 'HTTP_REFERER' ])? '?' : $_SERVER [ 'HTTP_REFERER' ]));
754 // -------- Handle other actions allowed for non-logged in users:
757 // User tries to post new link but is not loggedin:
758 // Show login screen, then redirect to ?post=...
759 if ( isset ( $_GET [ 'post' ]))
761 header ( 'Location: ?do=login&post=' . urlencode ( $_GET [ 'post' ]).( isset ( $_GET [ 'title' ])? '&title=' . urlencode ( $_GET [ 'title' ]): '' ).( isset ( $_GET [ 'source' ])? '&source=' . urlencode ( $_GET [ 'source' ]): '' )); // Redirect to login page, then back to post link.
765 // Show search form and display list of links.
767 <div id="headerform" style="width:100%; white-space:nowrap;";>
768 <form method="GET" name="searchform" style="display:inline;"><input type="text" name="searchterm" style="width:50%" value=""> <input type="submit" value="Search" class="bigbutton"></form>
769 <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" id="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
772 $data = array ( 'pageheader' => $searchform , 'body' => templateLinkList (), 'onload' => '' );
774 exit ; // Never remove this one ! All operations below are reserved for logged in user.
777 // -------- All other functions are reserved for the registered user:
779 // -------- Display the Tools menu if requested (import/export/bookmarklet...)
780 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=tools' ))
782 $pageabsaddr = serverUrl (). $_SERVER [ "SCRIPT_NAME" ]; // Why doesn't php have a built-in function for that ?
783 // The javascript code for the bookmarklet:
784 $changepwd = ( OPEN_SHAARLI
? '' : '<a href="?do=changepasswd"><b>Change password</b></a> - Change your password.<br><br>' );
786 <div id="headerform"><br>
788 <a href="?do=configure"><b>Configure your Shaarli</b></a> - Change Title, timezone...<br><br>
789 <a href="?do=changetag"><b>Rename/delete tags</b></a> - Rename or delete a tag in all links.<br><br>
790 <a href="?do=import"><b>Import</b></a> - Import Netscape html bookmarks (as exported from Firefox, Chrome, Opera, delicious...)<br><br>
791 <a href="?do=export"><b>Export</b></a> - Export Netscape html bookmarks (which can be imported in Firefox, Chrome, Opera, delicious...)<br><br>
792 <a class="smallbutton" style="color:black;" onclick="alert('Drag this link to your bookmarks toolbar, or right-click it and choose Bookmark This Link...');return false;" href="javascript:javascript:(function() {var%20url%20=%20location.href;var%20title%20=%20document.title%20||%20url;window.open('{$pageabsaddr} ?post='%20+%20encodeURIComponent(url)+'&title='%20+%20encodeURIComponent(title)+'&source=bookmarklet','_blank','menubar=no,height=400,width=608,toolbar=no,scrollbars=no,status=no');})();">Shaare link</a> - Drag this link to your bookmarks toolbar (or right-click it and choose Bookmark This Link....). Then click "Shaare link" button in any page you want to share.<br><br>
795 $data = array ( 'pageheader' => $toolbar , 'body' => '' , 'onload' => '' );
800 // -------- User wants to change his/her password.
801 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changepasswd' ))
803 if ( OPEN_SHAARLI
) die ( 'You are not supposed to change a password on an Open Shaarli.' );
804 if (! empty ( $_POST [ 'setpassword' ]) && ! empty ( $_POST [ 'oldpassword' ]))
806 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
808 // Make sure old password is correct.
809 $oldhash = sha1 ( $_POST [ 'oldpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
810 if ( $oldhash != $GLOBALS [ 'hash' ]) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location= \' ?do=changepasswd \' ;</script>' ; exit ; }
812 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
813 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
815 echo '<script language="JavaScript">alert("Your password has been changed.");document.location= \' ?do=tools \' ;</script>' ;
821 $changepwdform = <<<HTML
822 <form method="POST" action="" name="changepasswordform" style="padding:10 10 10 10;">
823 Old password: <input type="password" name="oldpassword">
824 New password: <input type="password" name="setpassword">
825 <input type="hidden" name="token" value=" {$token} ">
826 <input type="submit" name="Save" value="Save password" class="bigbutton"></form>
828 $data = array ( 'pageheader' => $changepwdform , 'body' => '' , 'onload' => 'onload="document.changepasswordform.oldpassword.focus();"' );
834 // -------- User wants to change configuration
835 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=configure' ))
837 if (! empty ( $_POST [ 'title' ]) )
839 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
841 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
842 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
843 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
844 $GLOBALS [ 'timezone' ] = $tz ;
845 $GLOBALS [ 'title' ]= $_POST [ 'title' ];
847 echo '<script language="JavaScript">alert("Configuration was saved.");document.location= \' ?do=tools \' ;</script>' ;
853 $title = htmlspecialchars ( empty ( $GLOBALS [ 'title' ]) ? '' : $GLOBALS [ 'title' ] , ENT_QUOTES
);
854 list ( $timezone_form , $timezone_js ) = templateTZform ( $GLOBALS [ 'timezone' ]);
855 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td valign="top"><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
856 $changepwdform = <<<HTML
857 ${timezone_js} <form method="POST" action="" name="configform" id="configform"><input type="hidden" name="token" value=" {$token} ">
858 <table border="0" cellpadding="20">
859 <tr><td><b>Page title:</b></td><td><input type="text" name="title" id="title" size="50" value=" {$title} "></td></tr>
861 <tr><td></td><td align="right"><input type="submit" name="Save" value="Save config" class="bigbutton"></td></tr>
865 $data = array ( 'pageheader' => $changepwdform , 'body' => '' , 'onload' => 'onload="document.configform.title.focus();"' );
871 // -------- User wants to rename a tag or delete it
872 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=changetag' ))
874 if ( empty ( $_POST [ 'fromtag' ]))
877 $changetagform = <<<HTML
878 <form method="POST" action="" name="changetag" style="padding:10 10 10 10;">
879 <input type="hidden" name="token" value=" {$token} ">
880 Tag: <input type="text" name="fromtag" id="fromtag">
881 <input type="text" name="totag" style="margin-left:40px;"><input type="submit" name="renametag" value="Rename tag" class="bigbutton">
882 or <input type="submit" name="deletetag" value="Delete tag" class="bigbutton" onClick="return confirmDeleteTag();"><br>(Case sensitive)</form>
883 <script language="JavaScript">function confirmDeleteTag() { var agree=confirm("Are you sure you want to delete this tag from all links ?"); if (agree) return true ; else return false ; } </script>
885 $data = array ( 'pageheader' => $changetagform , 'body' => '' , 'onload' => 'onload="document.changetag.fromtag.focus();"' );
889 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
891 if (! empty ( $_POST [ 'deletetag' ]) && ! empty ( $_POST [ 'fromtag' ]))
893 $needle = trim ( $_POST [ 'fromtag' ]);
894 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
895 foreach ( $linksToAlter as $key => $value )
897 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
898 unset ( $tags [ array_search ( $needle , $tags )]); // Remove tag.
899 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
900 $LINKSDB [ $key ]= $value ;
902 $LINKSDB- > savedb (); // save to disk
904 echo '<script language="JavaScript">alert("Tag was removed from ' . count ( $linksToAlter ). ' links.");document.location= \' ? \' ;</script>' ;
909 if (! empty ( $_POST [ 'renametag' ]) && ! empty ( $_POST [ 'fromtag' ]) && ! empty ( $_POST [ 'totag' ]))
911 $needle = trim ( $_POST [ 'fromtag' ]);
912 $linksToAlter = $LINKSDB- > filterTags ( $needle , true ); // true for case-sensitive tag search.
913 foreach ( $linksToAlter as $key => $value )
915 $tags = explode ( ' ' , trim ( $value [ 'tags' ]));
916 $tags [ array_search ( $needle , $tags )] = trim ( $_POST [ 'totag' ]); // Remplace tags value.
917 $value [ 'tags' ]= trim ( implode ( ' ' , $tags ));
918 $LINKSDB [ $key ]= $value ;
920 $LINKSDB- > savedb (); // save to disk
922 echo '<script language="JavaScript">alert("Tag was renamed in ' . count ( $linksToAlter ). ' links.");document.location= \' ?searchtags=' . urlencode ( $_POST [ 'totag' ]). ' \' ;</script>' ;
927 // -------- User wants to add a link without using the bookmarklet: show form.
928 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=addlink' ))
930 $onload = 'onload="document.addform.post.focus();"' ;
931 $addform = '<div id="headerform"><form method="GET" action="" name="addform"><input type="text" name="post" style="width:70%;"> <input type="submit" value="Add link" class="bigbutton"></div>' ;
932 $data = array ( 'pageheader' => $addform , 'body' => '' , 'onload' => $onload );
937 // -------- User clicked the "Save" button when editing a link: Save link to database.
938 if ( isset ( $_POST [ 'save_edit' ]))
940 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' ); // Go away !
941 $tags = trim ( preg_replace ( '/\s\s+/' , ' ' , $_POST [ 'lf_tags' ])); // Remove multiple spaces.
942 $linkdate = $_POST [ 'lf_linkdate' ];
943 $link = array ( 'title' => trim ( $_POST [ 'lf_title' ]), 'url' => trim ( $_POST [ 'lf_url' ]), 'description' => trim ( $_POST [ 'lf_description' ]), 'private' =>( isset ( $_POST [ 'lf_private' ]) ? 1 : 0 ),
944 'linkdate' => $linkdate , 'tags' => $tags );
945 if ( $link [ 'title' ]== '' ) $link [ 'title' ]= $link [ 'url' ]; // If title is empty, use the URL as title.
946 $LINKSDB [ $linkdate ] = $link ;
947 $LINKSDB- > savedb (); // save to disk
950 // If we are called from the bookmarklet, we must close the popup:
951 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
952 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
953 header ( 'Location: ' . $returnurl ); // After saving the link, redirect to the page the user was on.
957 // -------- User clicked the "Cancel" button when editing a link.
958 if ( isset ( $_POST [ 'cancel_edit' ]))
960 // If we are called from the bookmarklet, we must close the popup;
961 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
962 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
963 header ( 'Location: ' . $returnurl ); // After canceling, redirect to the page the user was on.
967 // -------- User clicked the "Delete" button when editing a link : Delete link from database.
968 if ( isset ( $_POST [ 'delete_link' ]))
970 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
971 // We do not need to ask for confirmation:
972 // - confirmation is handled by javascript
973 // - we are protected from XSRF by the token.
974 $linkdate = $_POST [ 'lf_linkdate' ];
975 unset ( $LINKSDB [ $linkdate ]);
976 $LINKSDB- > savedb (); // save to disk
978 // If we are called from the bookmarklet, we must close the popup:
979 if ( isset ( $_GET [ 'source' ]) && $_GET [ 'source' ]== 'bookmarklet' ) { echo '<script language="JavaScript">self.close();</script>' ; exit ; }
980 $returnurl = ( isset ( $_POST [ 'returnurl' ]) ? $_POST [ 'returnurl' ] : '?' );
981 header ( 'Location: ' . $returnurl ); // After deleting the link, redirect to the page the user was on.
985 // -------- User clicked the "EDIT" button on a link: Display link edit form.
986 if ( isset ( $_GET [ 'edit_link' ]))
988 $link = $LINKSDB [ $_GET [ 'edit_link' ]]; // Read database
989 if (! $link ) { header ( 'Location: ?' ); exit ; } // Link not found in database.
990 list ( $editform , $onload )= templateEditForm ( $link );
991 $data = array ( 'pageheader' => $editform , 'body' => '' , 'onload' => $onload );
996 // -------- User want to post a new link: Display link edit form.
997 if ( isset ( $_GET [ 'post' ]))
1001 // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
1002 $i = strpos ( $url , '&utm_source=' ); if ( $i ) $url = substr ( $url , 0 , $i );
1003 $i = strpos ( $url , '?utm_source=' ); if ( $i ) $url = substr ( $url , 0 , $i );
1004 $i = strpos ( $url , '#xtor=RSS-' ); if ( $i ) $url = substr ( $url , 0 , $i );
1006 $link_is_new = false ;
1007 $link = $LINKSDB- > getLinkFromUrl ( $url ); // Check if URL is not already in database (in this case, we will edit the existing link)
1010 $link_is_new = true ; // This is a new link
1011 $linkdate = strval ( date ( 'Ymd_His' ));
1012 $title = ( empty ( $_GET [ 'title' ]) ? '' : $_GET [ 'title' ] ); // Get title if it was provided in URL (by the bookmarklet).
1013 $description = '' ; $tags = '' ; $private = 0 ;
1014 if ( parse_url ( $url , PHP_URL_SCHEME
)== '' ) $url = 'http://' . $url ;
1015 // If this is an HTTP link, we try go get the page to extact the title (otherwise we will to straight to the edit form.)
1016 if ( empty ( $title ) && parse_url ( $url , PHP_URL_SCHEME
)== 'http' )
1018 list ( $status , $headers , $data ) = getHTTP ( $url , 4 ); // Short timeout to keep the application responsive.
1019 // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
1020 if ( strpos ( $status , '200 OK' )) $title = html_entity_decode ( html_extract_title ( $data ), ENT_QUOTES
, 'UTF-8' );
1022 $link = array ( 'linkdate' => $linkdate , 'title' => $title , 'url' => $url , 'description' => $description , 'tags' => $tags , 'private' => 0 );
1024 list ( $editform , $onload )= templateEditForm ( $link , $link_is_new );
1025 $data = array ( 'pageheader' => $editform , 'body' => '' , 'onload' => $onload );
1026 templatePage ( $data );
1030 // -------- Export as Netscape Bookmarks HTML file.
1031 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=export' ))
1033 if ( empty ( $_GET [ 'what' ]))
1036 <div id="headerform"><br>
1037 <a href="?do=export&what=all"><b>Export all</b></a> - Export all links<br><br>
1038 <a href="?do=export&what=public"><b>Export public</b></a> - Export public links only<br><br>
1039 <a href="?do=export&what=private"><b>Export private</b></a> - Export private links only<br><br>
1042 $data = array ( 'pageheader' => $toolbar , 'body' => '' , 'onload' => '' );
1043 templatePage ( $data );
1046 $exportWhat = $_GET [ 'what' ];
1047 if (! array_intersect ( array ( 'all' , 'public' , 'private' ), array ( $exportWhat ))) die ( 'What are you trying to export ???' );
1049 header ( 'Content-Type: text/html; charset=utf-8' );
1050 header ( 'Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval ( date ( 'Ymd_His' )). '.html' );
1052 <!DOCTYPE NETSCAPE-Bookmark-file-1>
1053 <!-- This is an automatically generated file.
1054 It will be read and overwritten.
1056 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
1057 <TITLE>Bookmarks</TITLE>
1060 foreach ( $LINKSDB as $link )
1062 if ( $exportWhat == 'all' ||
1063 ( $exportWhat == 'private' && $link [ 'private' ]!= 0 ) ||
1064 ( $exportWhat == 'public' && $link [ 'private' ]== 0 ))
1066 echo '<DT><A HREF="' . htmlspecialchars ( $link [ 'url' ]). '" ADD_DATE="' . linkdate2timestamp ( $link [ 'linkdate' ]). '" PRIVATE="' . $link [ 'private' ]. '"' ;
1067 if ( $link [ 'tags' ]!= '' ) echo ' TAGS="' . htmlspecialchars ( str_replace ( ' ' , ',' , $link [ 'tags' ])). '"' ;
1068 echo '>' . htmlspecialchars ( $link [ 'title' ]). "</A> \n " ;
1069 if ( $link [ 'description' ]!= '' ) echo '<DD>' . htmlspecialchars ( $link [ 'description' ]). " \n " ;
1072 echo '<!-- Shaarli ' . $exportWhat . ' bookmarks export on ' . date ( 'Y/m/d H:i:s' ). "--> \n " ;
1076 // -------- User is uploading a file for import
1077 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=upload' ))
1079 // If file is too big, some form field may be missing.
1080 if (! isset ( $_POST [ 'token' ]) || (! isset ( $_FILES )) || ( isset ( $_FILES [ 'filetoupload' ][ 'size' ]) && $_FILES [ 'filetoupload' ][ 'size' ]== 0 ))
1082 $returnurl = ( empty ( $_SERVER [ 'HTTP_REFERER' ]) ? '?' : $_SERVER [ 'HTTP_REFERER' ] );
1083 echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept (' . getMaxFileSize (). ' bytes). Please upload in smaller chunks.");document.location= \' ' . htmlspecialchars ( $returnurl ). ' \' ;</script>' ;
1086 if (! tokenOk ( $_POST [ 'token' ])) die ( 'Wrong token.' );
1091 // -------- Show upload/import dialog:
1092 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=import' ))
1094 $token = getToken ();
1095 $maxfilesize = getMaxFileSize ();
1096 $onload = 'onload="document.uploadform.filetoupload.focus();"' ;
1098 <div id="headerform">
1099 Import Netscape html bookmarks (as exported from Firefox/Chrome/Opera/delicious/diigo...) (Max: {$maxfilesize} bytes).
1100 <form method="POST" action="?do=upload" enctype="multipart/form-data" name="uploadform">
1101 <input type="hidden" name="token" value=" {$token} ">
1102 <input type="file" name="filetoupload" size="80">
1103 <input type="hidden" name="MAX_FILE_SIZE" value=" {$maxfilesize} ">
1104 <input type="submit" name="import_file" value="Import" class="bigbutton"><br>
1105 <input type="checkbox" name="private"> Import all links as private<br>
1106 <input type="checkbox" name="overwrite"> Overwrite existing links
1110 $data = array ( 'pageheader' => $uploadform , 'body' => '' , 'onload' => $onload );
1111 templatePage ( $data );
1115 // -------- Otherwise, simply display search form and links:
1117 <div id="headerform" style="width:100%; white-space:nowrap;";>
1118 <form method="GET" name="searchform" style="display:inline;"><input type="text" name="searchterm" style="width:50%" value=""> <input type="submit" value="Search" class="bigbutton"></form>
1119 <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" id="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
1122 $data = array ( 'pageheader' => $searchform , 'body' => templateLinkList (), 'onload' => '' );
1123 templatePage ( $data );
1127 // -----------------------------------------------------------------------------------------------
1128 // Process the import file form.
1129 function importFile ()
1132 $filename = $_FILES [ 'filetoupload' ][ 'name' ];
1133 $filesize = $_FILES [ 'filetoupload' ][ 'size' ];
1134 $data = file_get_contents ( $_FILES [ 'filetoupload' ][ 'tmp_name' ]);
1135 $private = ( empty ( $_POST [ 'private' ]) ? 0 : 1 ); // Should the links be imported as private ?
1136 $overwrite = ! empty ( $_POST [ 'overwrite' ]) ; // Should the imported links overwrite existing ones ?
1141 if ( startsWith ( $data , '<!DOCTYPE NETSCAPE-Bookmark-file-1>' )) $type = 'netscape' ; // Netscape bookmark file (aka Firefox).
1143 // Then import the bookmarks.
1144 if ( $type == 'netscape' )
1146 // This is a standard Netscape-style bookmark file.
1147 // This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
1148 // I didn't want to use DOM... anyway, this is FAST (less than 1 second to import 7200 links (2.1 Mb html file)).
1149 foreach ( explode ( '<DT>' , $data ) as $html ) // explode is very fast
1151 $link = array ( 'linkdate' => '' , 'title' => '' , 'url' => '' , 'description' => '' , 'tags' => '' , 'private' => 0 );
1152 $d = explode ( '<DD>' , $html );
1153 if ( startswith ( $d [ 0 ], '<A ' ))
1155 $link [ 'description' ] = ( isset ( $d [ 1 ]) ? html_entity_decode ( trim ( $d [ 1 ]), ENT_QUOTES
, 'UTF-8' ) : '' ); // Get description (optional)
1156 preg_match ( '!<A .*?>(.*?)</A>!i' , $d [ 0 ], $matches ); $link [ 'title' ] = ( isset ( $matches [ 1 ]) ? trim ( $matches [ 1 ]) : '' ); // Get title
1157 $link [ 'title' ] = html_entity_decode ( $link [ 'title' ], ENT_QUOTES
, 'UTF-8' );
1158 preg_match_all ( '! ([A-Z_]+)= \" (.*?)"!i' , $html , $matches , PREG_SET_ORDER
); // Get all other attributes
1159 foreach ( $matches as $m )
1161 $attr = $m [ 1 ]; $value = $m [ 2 ];
1162 if ( $attr == 'HREF' ) $link [ 'url' ]= html_entity_decode ( $value , ENT_QUOTES
, 'UTF-8' );
1163 elseif ( $attr == 'ADD_DATE' ) $link [ 'linkdate' ]= date ( 'Ymd_His' , intval ( $value ));
1164 elseif ( $attr == 'PRIVATE' ) $link [ 'private' ]=( $value == '0' ? 0 : 1 );
1165 elseif ( $attr == 'TAGS' ) $link [ 'tags' ]= html_entity_decode ( str_replace ( ',' , ' ' , $value ), ENT_QUOTES
, 'UTF-8' );
1167 if ( $link [ 'linkdate' ]!= '' && $link [ 'url' ]!= '' && ( $overwrite || empty ( $LINKSDB [ $link [ 'linkdate' ]])))
1169 if ( $private == 1 ) $link [ 'private' ]= 1 ;
1170 $LINKSDB [ $link [ 'linkdate' ]] = $link ;
1177 echo '<script language="JavaScript">alert("File ' . $filename . ' (' . $filesize . ' bytes) was successfully processed: ' . $import_count . ' links imported.");document.location= \' ? \' ;</script>' ;
1181 echo '<script language="JavaScript">alert("File ' . $filename . ' (' . $filesize . ' bytes) has an unknown file format. Nothing was imported.");document.location= \' ? \' ;</script>' ;
1185 // -----------------------------------------------------------------------------------------------
1186 /* Template for the edit link form
1187 Input: $link : link to edit (assocative array item as returned by the LINKDB class)
1188 Output: An array : (string) : The html code of the edit link form.
1189 (string) : The proper onload to use in body.
1190 Example: list($html,$onload)=templateEditForm($mylinkdb['20110805_124532']);
1193 function templateEditForm ( $link , $link_is_new = false )
1195 $url = htmlspecialchars ( $link [ 'url' ]);
1196 $title = htmlspecialchars ( $link [ 'title' ]);
1197 $tags = htmlspecialchars ( $link [ 'tags' ]);
1198 $description = htmlspecialchars ( $link [ 'description' ]);
1199 $private = ( $link [ 'private' ]== 0 ? '' : 'checked="yes"' );
1201 // Automatically focus on empty fields:
1202 $onload = 'onload="document.linkform.lf_tags.focus();"' ;
1203 if ( $description == '' ) $onload = 'onload="document.linkform.lf_description.focus();"' ;
1204 if ( $title == '' ) $onload = 'onload="document.linkform.lf_title.focus();"' ;
1206 // Do not show "Delete" button if this is a new link.
1207 $delete_button = '<input type="submit" value="Delete" name="delete_link" class="bigbutton" style="margin-left:180px;" onClick="return confirmDeleteLink();">' ;
1208 if ( $link_is_new ) $delete_button = '' ;
1210 $token = getToken (); // XSRF protection.
1211 $returnurl_html = ( isset ( $_SERVER [ 'HTTP_REFERER' ]) ? '<input type="hidden" name="returnurl" value="' . htmlspecialchars ( $_SERVER [ 'HTTP_REFERER' ]). '">' : '' );
1212 $editlinkform = <<<HTML
1213 <div id="editlinkform">
1214 <form method="post" name="linkform">
1215 <input type="hidden" name="lf_linkdate" value=" {$link['linkdate']} ">
1216 <i>URL</i><br><input type="text" name="lf_url" value=" {$url} " style="width:100%"><br>
1217 <i>Title</i><br><input type="text" name="lf_title" value=" {$title} " style="width:100%"><br>
1218 <i>Description</i><br><textarea name="lf_description" rows="4" cols="25" style="width:100%"> {$description} </textarea><br>
1219 <i>Tags</i><br><input type="text" id="lf_tags" name="lf_tags" value=" {$tags} " style="width:100%"><br>
1220 <input type="checkbox" {$private} style="margin:7 0 10 0;" name="lf_private"> <i>Private</i><br>
1221 <input type="submit" value="Save" name="save_edit" class="bigbutton" style="margin-left:40px;">
1222 <input type="submit" value="Cancel" name="cancel_edit" class="bigbutton" style="margin-left:40px;">
1224 <input type="hidden" name="token" value=" {$token} ">
1229 return array ( $editlinkform , $onload );
1233 // -----------------------------------------------------------------------------------------------
1234 // Template for the list of links.
1235 // Returns html code to show the list of link according to parameters passed in URL (search terms, page...)
1236 function templateLinkList ()
1240 // Search according to entered search terms:
1241 $linksToDisplay = array ();
1243 if (! empty ( $_GET [ 'searchterm' ])) // Fulltext search
1245 $linksToDisplay = $LINKSDB- > filterFulltext ( trim ( $_GET [ 'searchterm' ]));
1246 $searched = ' <b>' . count ( $linksToDisplay ). ' results for <i>' . htmlspecialchars ( trim ( $_GET [ 'searchterm' ])). '</i></b>:' ;
1248 elseif (! empty ( $_GET [ 'searchtags' ])) // Search by tag
1250 $linksToDisplay = $LINKSDB- > filterTags ( trim ( $_GET [ 'searchtags' ]));
1251 $tagshtml = '' ; foreach ( explode ( ' ' , trim ( $_GET [ 'searchtags' ])) as $tag ) $tagshtml .= '<span class="linktag" title="Remove tag"><a href="?removetag=' . htmlspecialchars ( $tag ). '">' . htmlspecialchars ( $tag ). ' <span style="border-left:1px solid #aaa; padding-left:5px; color:#6767A7;">x</span></a></span> ' ;
1252 $searched = ' <b>' . count ( $linksToDisplay ). ' results for tags ' . $tagshtml . ':</b>' ;
1255 $linksToDisplay = $LINKSDB ; // otherwise, display without filtering.
1261 /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ???
1262 "Warning: array_keys() expects parameter 1 to be array, object given in ... "
1263 If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
1265 $keys = array (); foreach ( $linksToDisplay as $key => $value ) { $keys
[]= $key
; } // Stupid and ugly. Thanks php.
1266 $pagecount = ceil ( count ( $keys )/ $_SESSION [ 'LINKS_PER_PAGE' ]);
1267 $pagecount = ( $pagecount == 0 ? 1 : $pagecount );
1268 $page =( empty ( $_GET [ 'page' ]) ? 1 : intval ( $_GET [ 'page' ]));
1269 $page = ( $page < 1 ? 1 : $page );
1270 $page = ( $page > $pagecount ? $pagecount : $page );
1271 $i = ( $page-1 )* $_SESSION [ 'LINKS_PER_PAGE' ]; // Start index.
1272 $end = $i +
$_SESSION [ 'LINKS_PER_PAGE' ];
1273 while ( $i < $end && $i < count ( $keys ))
1275 $link = $linksToDisplay [ $keys [ $i ]];
1276 $description = $link [ 'description' ];
1277 $title = $link [ 'title' ];
1278 $classprivate = ( $link [ 'private' ]== 0 ? '' : 'class="private"' );
1279 if ( isLoggedIn ()) $actions = ' <form method="GET" class="buttoneditform"><input type="hidden" name="edit_link" value="' . $link [ 'linkdate' ]. '"><input type="submit" value="Edit" class="smallbutton"></form>' ;
1281 if ( $link [ 'tags' ]!= '' ) foreach ( explode ( ' ' , $link [ 'tags' ]) as $tag ) { $tags
.= '<span class="linktag" title="Add tag"><a href="?addtag=' . htmlspecialchars ( $tag
). '">' . htmlspecialchars ( $tag
). '</a></span> ' ; }
1282 $linklist .= '<li ' . $classprivate . '>' . thumbnail ( $link [ 'url' ]);
1283 $linklist .= '<div class="linkcontainer"><span class="linktitle"><a href="' . htmlspecialchars ( $link [ 'url' ]). '">' . htmlspecialchars ( $title ). '</a></span>' . $actions . '<br>' ;
1284 if ( $description != '' ) $linklist .= '<div class="linkdescription">' . nl2br ( htmlspecialchars ( $description )). '</div><br>' ;
1285 if (! HIDE_TIMESTAMPS
|| isLoggedIn ()) $linklist .= '<span class="linkdate">' . htmlspecialchars ( linkdate2locale ( $link [ 'linkdate' ])). ' - </span>' ;
1286 $linklist .= '<span class="linkurl">' . htmlspecialchars ( $link [ 'url' ]). '</span><br>' . $tags . "</div></li> \n " ;
1291 $searchterm = ( empty ( $_GET [ 'searchterm' ]) ? '' : '&searchterm=' . $_GET [ 'searchterm' ] );
1292 $searchtags = ( empty ( $_GET [ 'searchtags' ]) ? '' : '&searchtags=' . $_GET [ 'searchtags' ] );
1294 if ( $i != count ( $keys )) $paging .= '<a href="?page=' .( $page +
1 ). $searchterm . $searchtags . '">◄Older</a>' ;
1295 $paging .= '<span style="color:#fff; padding:0 20 0 20;">page ' . $page . ' / ' . $pagecount . '</span>' ;
1296 if ( $page > 1 ) $paging .= '<a href="?page=' .( $page-1 ). $searchterm . $searchtags . '">Newer►</a>' ;
1297 $linksperpage = <<<HTML
1298 <div style="float:right; padding-right:5px;">
1299 Links per page: <a href="?linksperpage=20">20</a> <a href="?linksperpage=50">50</a> <a href="?linksperpage=100">100</a>
1300 <form method="GET" style="display:inline;"><input type="text" name="linksperpage" size="2" style="height:15px;"></form></div>
1302 $paging = '<div class="paging">' . $linksperpage . $paging . '</div>' ;
1303 $linklist = '<div id="linklist">' . $paging . $searched . '<ul>' . $linklist . '</ul>' . $paging . '</div>' ;
1307 // Returns the HTML code to display a thumbnail for a link.
1308 // Understands various services (youtube.com...)
1309 function thumbnail ( $url )
1311 if (! ENABLE_THUMBNAILS
) return '' ;
1313 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1314 // (eg. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/2.jpg )
1315 // ^^^^^^^^^^^ ^^^^^^^^^^^
1316 $domain = parse_url ( $url , PHP_URL_HOST
);
1317 if ( $domain == 'youtube.com' || $domain == 'www.youtube.com' )
1319 parse_str ( parse_url ( $url , PHP_URL_QUERY
), $params ); // Extract video ID and get thumbnail
1320 if (! empty ( $params [ 'v' ])) return '<div class="thumbnail"><a href="' . htmlspecialchars ( $url ). '"><img src="http://img.youtube.com/vi/' . htmlspecialchars ( $params [ 'v' ]). '/2.jpg" width="120" height="90"></a></div>' ;
1322 if ( $domain == 'imgur.com' )
1324 $path = parse_url ( $url , PHP_URL_PATH
);
1325 if ( substr_count ( $path , '/' )== 1 ) return '<div class="thumbnail"><a href="' . htmlspecialchars ( $url ). '"><img src="http://i.imgur.com/' . htmlspecialchars ( substr ( $path , 1 )). 's.jpg" width="90" height="90"></a></div>' ;
1327 if ( $domain == 'i.imgur.com' )
1329 $pi = pathinfo ( parse_url ( $url , PHP_URL_PATH
));
1330 if (! empty ( $pi [ 'filename' ])) return '<div class="thumbnail"><a href="' . htmlspecialchars ( $url ). '"><img src="http://i.imgur.com/' . htmlspecialchars ( $pi [ 'filename' ]). 's.jpg" width="90" height="90"></a></div>' ;
1332 if ( $domain == 'dailymotion.com' || $domain == 'www.dailymotion.com' )
1334 if ( strpos ( $url , 'dailymotion.com/video/' ))
1336 $thumburl = str_replace ( 'dailymotion.com/video/' , 'dailymotion.com/thumbnail/video/' , $url );
1337 return '<div class="thumbnail"><a href="' . htmlspecialchars ( $url ). '"><img src="' . htmlspecialchars ( $thumburl ). '" width="120" style="height:auto;"></a></div>' ;
1341 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1342 // So we deport the thumbnail generation in order not to slow down page generation
1343 // (and we also cache the thumbnail)
1344 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ) || $domain == 'vimeo.com' )
1346 $sign = hash_hmac ( 'sha256' , $url , $GLOBALS [ 'salt' ]); // We use the salt to sign data (it's random, secret, and specific to each installation)
1347 return '<div class="thumbnail"><a href="' . htmlspecialchars ( $url ). '"><img src="?do=genthumbnail&hmac=' . htmlspecialchars ( $sign ). '&url=' . urlencode ( $url ). '" width="120" style="height:auto;"></a></div>' ;
1350 return '' ; // No thumbnail.
1354 // -----------------------------------------------------------------------------------------------
1355 // Template for the whole page.
1356 /* Input: $data (associative array).
1357 Keys: 'body' : body of HTML document
1358 'pageheader' : html code to show in page header (top of page)
1359 'onload' : optional onload javascript for the <body>
1361 function templatePage ( $data )
1365 $shaarli_version = shaarli_version
;
1367 $newversion = checkUpdate ();
1368 if ( $newversion != '' ) $newversion = '<div id="newversion"><span style="text-decoration:blink;">●</span> Shaarli ' . htmlspecialchars ( $newversion ). ' is <a href="http://sebsauvage.net/wiki/doku.php?id=php:shaarli#download">available</a>.</div>' ;
1369 $linkcount = count ( $LINKSDB );
1373 $menu = ' <a href="?do=tools">Tools</a> <a href="?do=addlink"><b>Add link</b></a>' ;
1377 $menu =( isLoggedIn () ? ' <a href="?do=logout">Logout</a> <a href="?do=tools">Tools</a> <a href="?do=addlink"><b>Add link</b></a>' : ' <a href="?do=login">Login</a>' );
1379 foreach ( array ( 'pageheader' , 'body' , 'onload' ) as $k ) // make sure all required fields exist (put an empty string if not).
1381 if (! array_key_exists ( $k , $data )) $data [ $k ]= '' ;
1383 $jsincludes = '' ; $jsincludes_bottom = '' ;
1384 if ( OPEN_SHAARLI
|| isLoggedIn ())
1386 $jsincludes = '<script language="JavaScript" src="jquery.min.js"></script><script language="JavaScript" src="jquery-ui.custom.min.js"></script>' ;
1387 $source = serverUrl (). $_SERVER [ 'SCRIPT_NAME' ];
1388 $jsincludes_bottom = <<<JS
1389 <script language="JavaScript">
1390 $(document).ready(function()
1392 $('#lf_tags').autocomplete( {source:'{$source} ?ws=tags',minLength:1});
1393 $('#searchtags').autocomplete( {source:'{$source} ?ws=tags',minLength:1});
1394 $('#fromtag').autocomplete( {source:'{$source} ?ws=singletag',minLength:1});
1399 $feedurl = htmlspecialchars ( serverUrl (). $_SERVER [ 'SCRIPT_NAME' ]);
1400 if (! empty ( $_GET [ 'searchtags' ])) $feedurl .= '&searchtags=' . $_GET [ 'searchtags' ];
1401 elseif (! empty ( $_GET [ 'searchterm' ])) $feedurl .= '&searchterm=' . $_GET [ 'searchterm' ];
1403 $title = htmlspecialchars ( $GLOBALS [ 'title' ] );
1407 <title> {$title} </title>
1408 <link rel="alternate" type="application/rss+xml" href=" {$feedurl} " />
1409 <link type="text/css" rel="stylesheet" href="shaarli.css" />
1412 <body {$data['onload']} > {$newversion}
1413 <div id="pageheader"><div style="float:right; font-style:italic; color:#bbb; text-align:right; padding:0 5 0 0;">Shaare your links...<br> {$linkcount} links</div>
1414 <b><i> {$title} </i></b> - <a href="?">Home</a> {$menu} <a href=" {$feedurl} ?do=rss" style="padding-left:30px;">RSS Feed</a> <a href=" {$feedurl} ?do=atom" style="padding-left:10px;">ATOM Feed</a>
1415 <a href="?do=tagcloud">Tag cloud</a>
1416 {$data['pageheader']}
1421 $exectime = round ( microtime ( true )- $STARTTIME , 4 );
1422 echo '<div id="footer"><b><a href="http://sebsauvage.net/wiki/doku.php?id=php:shaarli">Shaarli ' . shaarli_version
. '</a></b> - The personal, minimalist, super-fast, no-database delicious clone. By sebsauvage.net<br>Who gives a shit that this page was generated in ' . $exectime . ' seconds ?</div>' ;
1423 if ( isLoggedIn ()) echo '<script language="JavaScript">function confirmDeleteLink() { var agree=confirm("Are you sure you want to delete this link ?"); if (agree) return true ; else return false ; } </script>' ;
1424 echo $jsincludes_bottom . '</body></html>' ;
1427 // -----------------------------------------------------------------------------------------------
1429 // This function should NEVER be called if the file data/config.php exists.
1432 // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1433 if ( endsWith ( $_SERVER [ 'SERVER_NAME' ], '.free.fr' ) && ! is_dir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' )) mkdir ( $_SERVER [ 'DOCUMENT_ROOT' ]. '/sessions' , 0705 );
1435 if (! empty ( $_POST [ 'setlogin' ]) && ! empty ( $_POST [ 'setpassword' ]))
1438 if (! empty ( $_POST [ 'continent' ]) && ! empty ( $_POST [ 'city' ]))
1439 if ( isTZvalid ( $_POST [ 'continent' ], $_POST [ 'city' ]))
1440 $tz = $_POST [ 'continent' ]. '/' . $_POST [ 'city' ];
1441 $GLOBALS [ 'timezone' ] = $tz ;
1442 // Everything is ok, let's create config file.
1443 $GLOBALS [ 'login' ] = $_POST [ 'setlogin' ];
1444 $GLOBALS [ 'salt' ] = sha1 ( uniqid ( '' , true ). '_' . mt_rand ()); // Salt renders rainbow-tables attacks useless.
1445 $GLOBALS [ 'hash' ] = sha1 ( $_POST [ 'setpassword' ]. $GLOBALS [ 'login' ]. $GLOBALS [ 'salt' ]);
1446 $GLOBALS [ 'title' ] = ( empty ( $_POST [ 'title' ]) ? 'Shared links on ' . htmlspecialchars ( serverUrl (). $_SERVER [ 'SCRIPT_NAME' ]) : $_POST [ 'title' ] );
1448 echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location= \' ?do=login \' ;</script>' ;
1452 // Display config form:
1453 list ( $timezone_form , $timezone_js ) = templateTZform ();
1454 $timezone_html = '' ; if ( $timezone_form != '' ) $timezone_html = '<tr><td valign="top"><b>Timezone:</b></td><td>' . $timezone_form . '</td></tr>' ;
1456 <html><head><title>Shaarli - Configuration</title><link type="text/css" rel="stylesheet" href="shaarli.css" /> ${timezone_js} </head>
1457 <body onload="document.installform.setlogin.focus();" style="padding:20px;"><h1>Shaarli - Shaare your links...</h1>
1458 It looks like it's the first time you run Shaarli. Please configure it:<br>
1459 <form method="POST" action="" name="installform" id="installform" style="border:1px solid black; padding:10 10 10 10;">
1460 <table border="0" cellpadding="20">
1461 <tr><td><b>Login:</b></td><td><input type="text" name="setlogin" size="30"></td></tr>
1462 <tr><td><b>Password:</b></td><td><input type="password" name="setpassword" size="30"></td></tr>
1464 <tr><td><b>Page title:</b></td><td><input type="text" name="title" size="30"></td></tr>
1465 <tr><td></td><td align="right"><input type="submit" name="Save" value="Save config" class="bigbutton"></td></tr>
1467 </form></body></html>
1472 // Generates the timezone selection form and javascript.
1473 // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
1474 // Output: array(html,js)
1475 // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
1476 // Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr)
1477 function templateTZform ( $ptz = false )
1479 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
1481 // Try to split the provided timezone.
1482 if ( $ptz == false ) { $l
= timezone_identifiers_list (); $ptz
= $l
[ 0 ]; }
1483 $spos = strpos ( $ptz , '/' ); $pcontinent = substr ( $ptz , 0 , $spos ); $pcity = substr ( $ptz , $spos +
1 );
1485 // Display config form:
1486 $timezone_form = '' ;
1488 // The list is in the forme "Europe/Paris", "America/Argentina/Buenos_Aires"...
1489 // We split the list in continents/cities.
1490 $continents = array ();
1492 foreach ( timezone_identifiers_list () as $tz )
1494 if ( $tz == 'UTC' ) $tz = 'UTC/UTC' ;
1495 $spos = strpos ( $tz , '/' );
1498 $continent = substr ( $tz , 0 , $spos ); $city = substr ( $tz , $spos +
1 );
1499 $continents [ $continent ]= 1 ;
1500 if (! isset ( $cities [ $continent ])) $cities [ $continent ]= array ();
1501 $cities [ $continent ].= '<option value="' . $city . '"' .( $pcity == $city ? 'selected' : '' ). '>' . $city . '</option>' ;
1504 $continents_html = '' ;
1505 $continents = array_keys ( $continents );
1506 foreach ( $continents as $continent )
1507 $continents_html .= '<option value="' . $continent . '"' .( $pcontinent == $continent ? 'selected' : '' ). '>' . $continent . '</option>' ;
1508 $cities_html = $cities [ $pcontinent ];
1509 $timezone_form = "Continent: <select name= \" continent \" id= \" continent \" onChange= \" onChangecontinent(); \" > ${continents_html} </select><br /><br />" ;
1510 $timezone_form .= "City: <select name= \" city \" id= \" city \" > ${cities[$pcontinent]} </select><br /><br />" ;
1511 $timezone_js = "<script language= \" JavaScript \" >" ;
1512 $timezone_js .= "function onChangecontinent() {document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];} " ;
1513 $timezone_js .= "var citiescontinent = " . json_encode ( $cities ). ";" ;
1514 $timezone_js .= "</script>" ;
1515 return array ( $timezone_form , $timezone_js );
1517 return array ( '' , '' );
1520 // Tells if a timezone is valid or not.
1521 // If not valid, returns false.
1522 // If system does not support timezone list, returns false.
1523 function isTZvalid ( $continent , $city )
1525 $tz = $continent . '/' . $city ;
1526 if ( function_exists ( 'timezone_identifiers_list' )) // because of old php version (5.1) which can be found on free.fr
1528 if ( in_array ( $tz , timezone_identifiers_list ())) // it's a valid timezone ?
1535 // Webservices (for use with jQuery/jQueryUI)
1536 // eg. index.php?ws=tags&term=minecr
1537 function processWS ()
1539 if ( empty ( $_GET [ 'ws' ]) || empty ( $_GET [ 'term' ])) return ;
1540 $term = $_GET [ 'term' ];
1542 header ( 'Content-Type: application/json; charset=utf-8' );
1544 // Search in tags (case insentitive, cumulative search)
1545 if ( $_GET [ 'ws' ]== 'tags' )
1547 $tags = explode ( ' ' , $term ); $last = array_pop ( $tags ); // Get the last term ("a b c d" ==> "a b c", "d")
1548 $addtags = '' ; if ( $tags ) $addtags = implode ( ' ' , $tags ). ' ' ; // We will pre-pend previous tags
1550 /* To speed up things, we store list of tags in session */
1551 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
1552 foreach ( $_SESSION [ 'tags' ] as $key => $value )
1554 if ( startsWith ( $key , $last , $case = false )) $suggested [ $addtags . $key . ' ' ]= 0 ;
1556 echo json_encode ( array_keys ( $suggested ));
1560 // Search a single tag (case sentitive, single tag search)
1561 if ( $_GET [ 'ws' ]== 'singletag' )
1563 /* To speed up things, we store list of tags in session */
1564 if ( empty ( $_SESSION [ 'tags' ])) $_SESSION [ 'tags' ] = $LINKSDB- > allTags ();
1565 foreach ( $_SESSION [ 'tags' ] as $key => $value )
1567 if ( startsWith ( $key , $term , $case = true )) $suggested [ $key ]= 0 ;
1569 echo json_encode ( array_keys ( $suggested ));
1574 // Re-write configuration file according to globals.
1575 // Requires some $GLOBALS to be set (login,hash,salt,title).
1576 // If the config file cannot be saved, an error message is dislayed and the user is redirected to "Tools" menu.
1577 // (otherwise, the function simply returns.)
1578 function writeConfig ()
1580 if ( is_file ( CONFIG_FILE
) && ! isLoggedIn ()) die ( 'You are not authorized to alter config.' ); // Only logged in user can alter config.
1581 $config = '<?php $GLOBALS [ \' login \' ]=' . var_export ( $GLOBALS [ 'login' ], true ). '; $GLOBALS [ \' hash \' ]=' . var_export ( $GLOBALS [ 'hash' ], true ). '; $GLOBALS [ \' salt \' ]=' . var_export ( $GLOBALS [ 'salt' ], true ). '; ' ;
1582 $config .= ' $GLOBALS [ \' timezone \' ]=' . var_export ( $GLOBALS [ 'timezone' ], true ). '; date_default_timezone_set(' . var_export ( $GLOBALS [ 'timezone' ], true ). '); $GLOBALS [ \' title \' ]=' . var_export ( $GLOBALS [ 'title' ], true ). '; ?>' ;
1583 if (! file_put_contents ( CONFIG_FILE
, $config ) || strcmp ( file_get_contents ( CONFIG_FILE
), $config )!= 0 )
1585 echo '<script language="JavaScript">alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location= \' ? \' ;</script>' ;
1590 /* Because some f*cking services like Flickr require an extra HTTP request to get the thumbnail URL,
1591 I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
1592 The following function takes the URL a link (eg. a flickr page) and return the proper thumbnail.
1593 This function is called by passing the url:
1594 http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
1595 [URL] is the URL of the link (eg. a flickr page)
1596 [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
1597 The function below will fetch the image from the webservice and store it in the cache.
1599 function genThumbnail ()
1601 // Make sure the parameters in the URL were generated by us.
1602 $sign = hash_hmac ( 'sha256' , $_GET [ 'url' ], $GLOBALS [ 'salt' ]);
1603 if ( $sign != $_GET [ 'hmac' ]) die ( 'Naughty boy !' );
1605 // Let's see if we don't already have the image for this URL in the cache.
1606 $thumbname = hash ( 'sha1' , $_GET [ 'url' ]). '.jpg' ;
1607 if ( is_file ( CACHEDIR
. '/' . $thumbname ))
1608 { // We have the thumbnail, just serve it:
1609 header ( 'Content-Type: image/jpeg' );
1610 echo file_get_contents ( CACHEDIR
. '/' . $thumbname );
1613 // We may also serve a blank image (if service did not respond)
1614 $blankname = hash ( 'sha1' , $_GET [ 'url' ]). '.gif' ;
1615 if ( is_file ( CACHEDIR
. '/' . $blankname ))
1617 header ( 'Content-Type: image/gif' );
1618 echo file_get_contents ( CACHEDIR
. '/' . $blankname );
1622 // Otherwise, generate the thumbnail.
1623 $url = $_GET [ 'url' ];
1624 $domain = parse_url ( $url , PHP_URL_HOST
);
1626 if ( $domain == 'flickr.com' || endsWith ( $domain , '.flickr.com' ))
1628 // WTF ? I need a flickr API key to get a fucking thumbnail ? No way.
1629 // I'll extract the thumbnail URL myself. First, we have to get the flickr HTML page.
1630 // All images in Flickr are in the form:
1631 // http://farm[farm].static.flickr.com/[server]/[id]_[secret]_[size].jpg
1632 // Example: http://farm7.static.flickr.com/6205/6088513739_fc158467fe_z.jpg
1633 // We want the 240x120 format, which is _m.jpg.
1634 // We search for the first image in the page which does not have the _s size,
1635 // when use the _m to get the thumbnail.
1637 // Is this a link to an image, or to a flickr page ?
1640 if ( endswith ( parse_url ( $url , PHP_URL_PATH
), '.jpg' ))
1641 { // This is a direct link to an image. eg. http://farm1.static.flickr.com/5/5921913_ac83ed27bd_o.jpg
1642 preg_match ( '!(http://farm\d+.static.flickr.com/\d+/\d+_\w+_)\w.jpg!' , $url , $matches );
1643 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
1645 else // this is a flickr page (html)
1647 list ( $httpstatus , $headers , $data ) = getHTTP ( $url , 20 ); // Get the flickr html page.
1648 if ( strpos ( $httpstatus , '200 OK' ))
1650 preg_match ( '!(http://farm\d+.static.flickr.com/\d+/\d+_\w+_)[^s].jpg!' , $data , $matches );
1651 if (! empty ( $matches [ 1 ])) $imageurl = $matches [ 1 ]. 'm.jpg' ;
1655 { // Let's download the image.
1656 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 ); // Image is 240x120, so 10 seconds to download should be enough.
1657 if ( strpos ( $httpstatus , '200 OK' ))
1659 file_put_contents ( CACHEDIR
. '/' . $thumbname , $data ); // Save image to cache.
1660 header ( 'Content-Type: image/jpeg' );
1665 else logm ( 'unkown flickr url: ' . $url );
1668 if ( $domain == 'vimeo.com' )
1670 // This is more complex: we have to perform a HTTP request, then parse the result.
1671 // Maybe we should deport this to javascript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
1672 $vid = substr ( parse_url ( $url , PHP_URL_PATH
), 1 );
1673 list ( $httpstatus , $headers , $data ) = getHTTP ( 'http://vimeo.com/api/v2/video/' . htmlspecialchars ( $vid ). '.php' , 5 );
1674 if ( strpos ( $httpstatus , '200 OK' ))
1676 $t = unserialize ( $data );
1677 $imageurl = $t [ 0 ][ 'thumbnail_medium' ];
1678 // Then we download the image and serve it to our client.
1679 list ( $httpstatus , $headers , $data ) = getHTTP ( $imageurl , 10 );
1680 if ( strpos ( $httpstatus , '200 OK' ))
1682 file_put_contents ( CACHEDIR
. '/' . $thumbname , $data ); // Save image to cache.
1683 header ( 'Content-Type: image/jpeg' );
1690 // Otherwise, return an empty image (8x8 transparent gif)
1691 $blankgif = base64_decode ( 'R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7' );
1692 file_put_contents ( CACHEDIR
. '/' . $blankname , $blankgif ); // Also put something in cache so that this URL is not requested twice.
1693 header ( 'Content-Type: image/gif' );
1697 // Invalidate caches when the database is changed or the user logs out.
1698 // (eg. tags cache).
1699 function invalidateCaches ()
1701 unset ( $_SESSION [ 'tags' ]);
1704 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=genthumbnail' )) { genThumbnail (); exit ; } // Thumbnail generation/cache does not need the link database.
1705 $LINKSDB = new linkdb ( isLoggedIn () || OPEN_SHAARLI
); // Read links from database (and filter private links if used it not logged in).
1706 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'ws=' )) { processWS (); exit ; } // Webservices (for jQuery/jQueryUI)
1707 if (! isset ( $_SESSION [ 'LINKS_PER_PAGE' ])) $_SESSION [ 'LINKS_PER_PAGE' ]= LINKS_PER_PAGE
;
1708 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=rss' )) { showRSS (); exit ; }
1709 if ( startswith ( $_SERVER [ "QUERY_STRING" ], 'do=atom' )) { showATOM (); exit ; }