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Commit | Line | Data |
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ef734b5d | 1 | <?php |
ba0718dc | 2 | // Shaarli 0.0.18 beta - Shaare your links... |
ef734b5d SS |
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 | ||
4887ceda | 7 | // Requires: php 5.1.x |
ef734b5d SS |
8 | |
9 | // ----------------------------------------------------------------------------------------------- | |
10 | // User config: | |
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) | |
44a9d860 | 18 | define('OPEN_SHAARLI',false); // If true, anyone can add/edit/delete links without having to login |
e6a0ab54 | 19 | define('HIDE_TIMESTAMPS',false); // If true, the moment when links were saved are not shown to users that are not logged in. |
ca201236 | 20 | |
ca201236 SS |
21 | // ----------------------------------------------------------------------------------------------- |
22 | // Program config (touch at your own risks !) | |
e6a0ab54 SS |
23 | define('UPDATECHECK_FILENAME',DATADIR.'/lastupdatecheck.txt'); // For updates check of Shaarli. |
24 | define('UPDATECHECK_INTERVAL',86400); // Updates check frequency for Shaarli. 86400 seconds=24 hours | |
ef4275c5 SS |
25 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. |
26 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
27 | ini_set('post_max_size', '16M'); | |
28 | ini_set('upload_max_filesize', '16M'); | |
29 | define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in php code. | |
30 | define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in php code. | |
31 | $STARTTIME = microtime(true); // Measure page execution time. | |
4887ceda | 32 | checkphpversion(); |
4887ceda SS |
33 | error_reporting(E_ALL^E_WARNING); // See all error except warnings. |
34 | //error_reporting(-1); // See all errors (for debugging only) | |
ef734b5d | 35 | ob_start(); |
f4aba1ac | 36 | |
ef4275c5 SS |
37 | // In case stupid admin has left magic_quotes enabled in php.ini: |
38 | if (get_magic_quotes_gpc()) | |
39 | { | |
40 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
41 | $_POST = array_map('stripslashes_deep', $_POST); | |
42 | $_GET = array_map('stripslashes_deep', $_GET); | |
43 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
44 | } | |
ef734b5d SS |
45 | // Prevent caching: (yes, it's ugly) |
46 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
47 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
48 | header("Cache-Control: post-check=0, pre-check=0", false); | |
49 | header("Pragma: no-cache"); | |
ba0718dc | 50 | define('shaarli_version','0.0.18 beta'); |
ef734b5d SS |
51 | if (!is_dir(DATADIR)) { mkdir(DATADIR,0705); chmod(DATADIR,0705); } |
52 | if (!is_file(DATADIR.'/.htaccess')) { file_put_contents(DATADIR.'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. | |
53 | if (!is_file(CONFIG_FILE)) install(); | |
54 | require CONFIG_FILE; // Read login/password hash into $GLOBALS. | |
ba0718dc SS |
55 | // Small protection against dodgy config files: |
56 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME']); | |
57 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); | |
ef734b5d SS |
58 | autoLocale(); // Sniff browser language and set date format accordingly. |
59 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
60 | $LINKSDB=false; | |
61 | ||
e6a0ab54 | 62 | // Check php version |
4887ceda SS |
63 | function checkphpversion() |
64 | { | |
e6a0ab54 | 65 | if (version_compare(PHP_VERSION, '5.1.0') < 0) |
4887ceda | 66 | { |
ca201236 | 67 | header('Content-Type: text/plain; charset=utf-8'); |
e6a0ab54 | 68 | echo 'Your server supports php '.PHP_VERSION.'. Shaarli requires at last php 5.1.0, and thus cannot run. Sorry.'; |
ca201236 | 69 | exit; |
e6a0ab54 SS |
70 | } |
71 | } | |
72 | ||
73 | // Checks if an update is available for Shaarli. | |
74 | // (at most once a day, and only for registered user.) | |
75 | // Output: '' = no new version. | |
76 | // other= the available version. | |
77 | function checkUpdate() | |
78 | { | |
79 | if (!isLoggedIn()) return ''; // Do not check versions for visitors. | |
80 | ||
81 | // Get latest version number at most once a day. | |
82 | if (!is_file(UPDATECHECK_FILENAME) || (filemtime(UPDATECHECK_FILENAME)<time()-(UPDATECHECK_INTERVAL))) | |
83 | { | |
84 | $version=shaarli_version; | |
85 | list($httpstatus,$headers,$data) = getHTTP('http://sebsauvage.net/files/shaarli_version.txt',2); | |
86 | if (strpos($httpstatus,'200 OK')) $version=$data; | |
87 | // If failed, nevermind. We don't want to bother the user with that. | |
88 | file_put_contents(UPDATECHECK_FILENAME,$version); // touch file date | |
4887ceda | 89 | } |
e6a0ab54 SS |
90 | // Compare versions: |
91 | $newestversion=file_get_contents(UPDATECHECK_FILENAME); | |
92 | if ($newestversion!=shaarli_version) return $newestversion; | |
93 | return ''; | |
4887ceda SS |
94 | } |
95 | ||
ef734b5d SS |
96 | // ----------------------------------------------------------------------------------------------- |
97 | // Log to text file | |
98 | function logm($message) | |
99 | { | |
f4aba1ac SS |
100 | $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; |
101 | file_put_contents(DATADIR.'/log.txt',$t,FILE_APPEND); | |
ef734b5d SS |
102 | } |
103 | ||
104 | // ------------------------------------------------------------------------------------------ | |
105 | // Sniff browser language to display dates in the right format automatically. | |
106 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
107 | function autoLocale() | |
108 | { | |
109 | $loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE | |
110 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" | |
111 | { // (It's a bit crude, but it works very well. Prefered language is always presented first.) | |
112 | if (preg_match('/([a-z]{2}(-[a-z]{2})?)/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) $loc=$matches[1]; | |
113 | } | |
114 | setlocale(LC_TIME,$loc); // LC_TIME = Set local for date/time format only. | |
115 | } | |
116 | ||
117 | // ------------------------------------------------------------------------------------------ | |
118 | // Session management | |
119 | define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired. | |
120 | ini_set('session.use_cookies', 1); // Use cookies to store session. | |
121 | ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL) | |
122 | ini_set('session.use_trans_sid', false); // Prevent php to use sessionID in URL if cookies are disabled. | |
123 | session_name('shaarli'); | |
124 | session_start(); | |
125 | ||
126 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
127 | function allIPs() | |
128 | { | |
129 | $ip = $_SERVER["REMOTE_ADDR"]; | |
130 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
131 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
132 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
133 | return $ip; | |
134 | } | |
135 | ||
136 | // Check that user/password is correct. | |
137 | function check_auth($login,$password) | |
138 | { | |
139 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
140 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
141 | { // Login/password is correct. | |
142 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // generate unique random number (different than phpsessionid) | |
143 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. | |
144 | $_SESSION['username']=$login; | |
145 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
146 | logm('Login successful'); | |
147 | return True; | |
148 | } | |
149 | logm('Login failed for user '.$login); | |
150 | return False; | |
151 | } | |
152 | ||
153 | // Returns true if the user is logged in. | |
154 | function isLoggedIn() | |
155 | { | |
44a9d860 SS |
156 | if (OPEN_SHAARLI) return true; |
157 | ||
ef734b5d SS |
158 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. |
159 | if (empty($_SESSION['uid']) || $_SESSION['ip']!=allIPs() || time()>=$_SESSION['expires_on']) | |
160 | { | |
161 | logout(); | |
162 | return false; | |
163 | } | |
164 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // User accessed a page : Update his/her session expiration date. | |
165 | return true; | |
166 | } | |
167 | ||
168 | // Force logout. | |
ba0718dc | 169 | function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);} } |
ef734b5d SS |
170 | |
171 | ||
172 | // ------------------------------------------------------------------------------------------ | |
173 | // Brute force protection system | |
174 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
175 | if (!is_file(IPBANS_FILENAME)) file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"); | |
176 | include IPBANS_FILENAME; | |
177 | // Signal a failed login. Will ban the IP if too many failures: | |
178 | function ban_loginFailed() | |
179 | { | |
180 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
181 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
182 | $gb['FAILURES'][$ip]++; | |
183 | if ($gb['FAILURES'][$ip]>(BAN_AFTER-1)) | |
184 | { | |
185 | $gb['BANS'][$ip]=time()+BAN_DURATION; | |
186 | logm('IP address banned from login'); | |
187 | } | |
188 | $GLOBALS['IPBANS'] = $gb; | |
189 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
190 | } | |
191 | ||
192 | // Signals a successful login. Resets failed login counter. | |
193 | function ban_loginOk() | |
194 | { | |
195 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
196 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
197 | $GLOBALS['IPBANS'] = $gb; | |
198 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
199 | } | |
200 | ||
201 | // Checks if the user CAN login. If 'true', the user can try to login. | |
202 | function ban_canLogin() | |
203 | { | |
204 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
205 | if (isset($gb['BANS'][$ip])) | |
206 | { | |
207 | // User is banned. Check if the ban has expired: | |
208 | if ($gb['BANS'][$ip]<=time()) | |
209 | { // Ban expired, user can try to login again. | |
210 | logm('Ban lifted.'); | |
211 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
212 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
213 | return true; // Ban has expired, user can login. | |
214 | } | |
215 | return false; // User is banned. | |
216 | } | |
217 | return true; // User is not banned. | |
218 | } | |
219 | ||
220 | // ------------------------------------------------------------------------------------------ | |
221 | // Process login form: Check if login/password is correct. | |
222 | if (isset($_POST['login'])) | |
223 | { | |
224 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
225 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
226 | { // Login/password is ok. | |
227 | ban_loginOk(); | |
228 | // Optional redirect after login: | |
229 | if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; } | |
eae4f48b SS |
230 | if (isset($_POST['returnurl'])) |
231 | { | |
232 | if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen. | |
233 | header('Location: '.$_POST['returnurl']); exit; | |
234 | } | |
ef734b5d SS |
235 | header('Location: ?'); exit; |
236 | } | |
237 | else | |
238 | { | |
239 | ban_loginFailed(); | |
240 | echo '<script language="JavaScript">alert("Wrong login/password.");document.location=\'?do=login\';</script>'; // Redirect to login screen. | |
241 | exit; | |
242 | } | |
243 | } | |
244 | ||
245 | // ------------------------------------------------------------------------------------------ | |
246 | // Misc utility functions: | |
247 | ||
248 | // Returns the server URL (including port and http/https), without path. | |
249 | // eg. "http://myserver.com:8080" | |
250 | // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL. | |
251 | function serverUrl() | |
252 | { | |
253 | $serverport = ($_SERVER["SERVER_PORT"]!='80' ? ':'.$_SERVER["SERVER_PORT"] : ''); | |
254 | return 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.$_SERVER["SERVER_NAME"].$serverport; | |
255 | } | |
256 | ||
257 | // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes. | |
258 | function return_bytes($val) | |
259 | { | |
260 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
261 | switch($last) | |
262 | { | |
263 | case 'g': $val *= 1024; | |
264 | case 'm': $val *= 1024; | |
265 | case 'k': $val *= 1024; | |
266 | } | |
267 | return $val; | |
268 | } | |
269 | ||
270 | // Try to determine max file size for uploads (POST). | |
271 | // Returns an integer (in bytes) | |
272 | function getMaxFileSize() | |
273 | { | |
274 | $size1 = return_bytes(ini_get('post_max_size')); | |
275 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
276 | // Return the smaller of two: | |
277 | $maxsize = min($size1,$size2); | |
278 | // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000) | |
279 | return $maxsize; | |
280 | } | |
281 | ||
282 | // Tells if a string start with a substring or not. | |
283 | function startsWith($haystack,$needle,$case=true) | |
284 | { | |
285 | if($case){return (strcmp(substr($haystack, 0, strlen($needle)),$needle)===0);} | |
286 | return (strcasecmp(substr($haystack, 0, strlen($needle)),$needle)===0); | |
287 | } | |
288 | ||
289 | // Tells if a string ends with a substring or not. | |
290 | function endsWith($haystack,$needle,$case=true) | |
291 | { | |
292 | if($case){return (strcmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);} | |
293 | return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0); | |
294 | } | |
295 | ||
296 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) | |
297 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
298 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
299 | function linkdate2timestamp($linkdate) | |
300 | { | |
301 | $Y=$M=$D=$h=$m=$s=0; | |
302 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
303 | return mktime($h,$m,$s,$M,$D,$Y); | |
304 | } | |
305 | ||
306 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
307 | (used to build the pubDate attribute in RSS feed.) */ | |
308 | function linkdate2rfc822($linkdate) | |
309 | { | |
310 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
311 | } | |
312 | ||
313 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format. | |
314 | (used to display link date on screen) | |
f4aba1ac | 315 | The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */ |
ef734b5d SS |
316 | function linkdate2locale($linkdate) |
317 | { | |
318 | return utf8_encode(strftime('%c',linkdate2timestamp($linkdate))); // %c is for automatic date format according to locale. | |
319 | // Note that if you use a local which is not installed on your webserver, | |
320 | // the date will not be displayed in the chosen locale, but probably in US notation. | |
321 | } | |
322 | ||
323 | // Parse HTTP response headers and return an associative array. | |
324 | function http_parse_headers( $headers ) | |
325 | { | |
326 | $res=array(); | |
327 | foreach($headers as $header) | |
328 | { | |
329 | $i = strpos($header,': '); | |
330 | if ($i) | |
331 | { | |
332 | $key=substr($header,0,$i); | |
333 | $value=substr($header,$i+2,strlen($header)-$i-2); | |
334 | $res[$key]=$value; | |
335 | } | |
336 | } | |
337 | return $res; | |
338 | } | |
339 | ||
340 | /* GET an URL. | |
341 | Input: $url : url to get (http://...) | |
342 | $timeout : Network timeout (will wait this many seconds for an anwser before giving up). | |
4887ceda | 343 | Output: An array. [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message |
ef734b5d SS |
344 | [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type']) |
345 | [2] = data | |
346 | Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/'); | |
347 | if (strpos($httpstatus,'200 OK')) | |
348 | echo 'Data type: '.htmlspecialchars($headers['Content-Type']); | |
349 | else | |
350 | echo 'There was an error: '.htmlspecialchars($httpstatus) | |
351 | */ | |
352 | function getHTTP($url,$timeout=30) | |
353 | { | |
4887ceda SS |
354 | try |
355 | { | |
356 | $options = array('http'=>array('method'=>'GET','timeout' => $timeout)); // Force network timeout | |
357 | $context = stream_context_create($options); | |
358 | $data=file_get_contents($url,false,$context,-1, 2000000); // We download at most 2 Mb from source. | |
359 | if (!$data) { $lasterror=error_get_last(); return array($lasterror['message'],array(),''); } | |
360 | $httpStatus=$http_response_header[0]; // eg. "HTTP/1.1 200 OK" | |
361 | $responseHeaders=http_parse_headers($http_response_header); | |
362 | return array($httpStatus,$responseHeaders,$data); | |
363 | } | |
364 | catch (Exception $e) // getHTTP *can* fail silentely (we don't care if the title cannot be fetched) | |
365 | { | |
366 | return array($e->getMessage(),'',''); | |
367 | } | |
ef734b5d SS |
368 | } |
369 | ||
370 | // Extract title from an HTML document. | |
371 | // (Returns an empty string if not found.) | |
372 | function html_extract_title($html) | |
373 | { | |
374 | return preg_match('!<title>(.*?)</title>!i', $html, $matches) ? $matches[1] : ''; | |
375 | } | |
376 | ||
377 | // ------------------------------------------------------------------------------------------ | |
378 | // Token management for XSRF protection | |
379 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
380 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
381 | ||
382 | // Returns a token. | |
383 | function getToken() | |
384 | { | |
385 | $rnd = sha1(uniqid('',true).'_'.mt_rand()); // We generate a random string. | |
386 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. | |
387 | return $rnd; | |
388 | } | |
389 | ||
390 | // Tells if a token is ok. Using this function will destroy the token. | |
391 | // true=token is ok. | |
392 | function tokenOk($token) | |
393 | { | |
394 | if (isset($_SESSION['tokens'][$token])) | |
395 | { | |
396 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
397 | return true; // Token is ok. | |
398 | } | |
399 | return false; // Wrong token, or already used. | |
400 | } | |
401 | ||
402 | // ------------------------------------------------------------------------------------------ | |
403 | /* Data storage for links. | |
404 | This object behaves like an associative array. | |
405 | Example: | |
406 | $mylinks = new linkdb(); | |
407 | echo $mylinks['20110826_161819']['title']; | |
408 | foreach($mylinks as $link) | |
409 | echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description']; | |
410 | ||
411 | We implement 3 interfaces: | |
412 | - ArrayAccess so that this object behaves like an associative array. | |
413 | - Iterator so that this object can be used in foreach() loops. | |
414 | - Countable interface so that we can do a count() on this object. | |
415 | */ | |
416 | class linkdb implements Iterator, Countable, ArrayAccess | |
417 | ||
418 | { | |
419 | private $links; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...) | |
420 | private $urls; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate) | |
421 | private $keys; // List of linkdate keys (for the Iterator interface implementation) | |
422 | private $position; // Position in the $this->keys array. (for the Iterator interface implementation.) | |
423 | private $loggedin; // Is the used logged in ? (used to filter private links) | |
424 | ||
425 | // Constructor: | |
426 | function __construct($isLoggedIn) | |
427 | // Input : $isLoggedIn : is the used logged in ? | |
428 | { | |
429 | $this->loggedin = $isLoggedIn; | |
430 | $this->checkdb(); // Make sure data file exists. | |
431 | $this->readdb(); // Then read it. | |
432 | } | |
433 | ||
434 | // ---- Countable interface implementation | |
435 | public function count() { return count($this->links); } | |
436 | ||
437 | // ---- ArrayAccess interface implementation | |
438 | public function offsetSet($offset, $value) | |
439 | { | |
440 | if (!$this->loggedin) die('You are not authorized to add a link.'); | |
441 | if (empty($value['linkdate']) || empty($value['url'])) die('Internal Error: A link should always have a linkdate and url.'); | |
442 | if (empty($offset)) die('You must specify a key.'); | |
443 | $this->links[$offset] = $value; | |
444 | $this->urls[$value['url']]=$offset; | |
445 | } | |
446 | public function offsetExists($offset) { return array_key_exists($offset,$this->links); } | |
447 | public function offsetUnset($offset) | |
448 | { | |
449 | if (!$this->loggedin) die('You are not authorized to delete a link.'); | |
450 | $url = $this->links[$offset]['url']; unset($this->urls[$url]); | |
451 | unset($this->links[$offset]); | |
452 | } | |
453 | public function offsetGet($offset) { return isset($this->links[$offset]) ? $this->links[$offset] : null; } | |
454 | ||
455 | // ---- Iterator interface implementation | |
456 | function rewind() { $this->keys=array_keys($this->links); rsort($this->keys); $this->position=0; } // Start over for iteration, ordered by date (latest first). | |
457 | function key() { return $this->keys[$this->position]; } // current key | |
458 | function current() { return $this->links[$this->keys[$this->position]]; } // current value | |
459 | function next() { ++$this->position; } // go to next item | |
460 | function valid() { return isset($this->keys[$this->position]); } // Check if current position is valid. | |
461 | ||
462 | // ---- Misc methods | |
463 | private function checkdb() // Check if db directory and file exists. | |
464 | { | |
465 | if (!file_exists(DATASTORE)) // Create a dummy database for example. | |
466 | { | |
467 | $this->links = array(); | |
468 | $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'); | |
469 | $this->links[$link['linkdate']] = $link; | |
470 | $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'); | |
471 | $this->links[$link['linkdate']] = $link; | |
472 | file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk | |
473 | } | |
474 | } | |
475 | ||
476 | // Read database from disk to memory | |
477 | private function readdb() | |
478 | { | |
479 | // Read data | |
480 | $this->links=(file_exists(DATASTORE) ? unserialize(gzinflate(base64_decode(substr(file_get_contents(DATASTORE),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() ); | |
f4aba1ac | 481 | // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439 |
ef734b5d SS |
482 | |
483 | // If user is not logged in, filter private links. | |
484 | if (!$this->loggedin) | |
485 | { | |
486 | $toremove=array(); | |
487 | foreach($this->links as $link) { if ($link['private']!=0) $toremove[]=$link['linkdate']; } | |
488 | foreach($toremove as $linkdate) { unset($this->links[$linkdate]); } | |
489 | } | |
490 | ||
491 | // Keep the list of the mapping URLs-->linkdate up-to-date. | |
492 | $this->urls=array(); | |
493 | foreach($this->links as $link) { $this->urls[$link['url']]=$link['linkdate']; } | |
494 | } | |
495 | ||
496 | // Save database from memory to disk. | |
497 | public function savedb() | |
498 | { | |
499 | if (!$this->loggedin) die('You are not authorized to change the database.'); | |
500 | file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); | |
501 | } | |
502 | ||
503 | // Returns the link for a given URL (if it exists). false it does not exist. | |
504 | public function getLinkFromUrl($url) | |
505 | { | |
506 | if (isset($this->urls[$url])) return $this->links[$this->urls[$url]]; | |
507 | return false; | |
508 | } | |
509 | ||
510 | // Case insentitive search among links (in url, title and description). Returns filtered list of links. | |
f4aba1ac | 511 | // eg. print_r($mydb->filterFulltext('hollandais')); |
ef734b5d SS |
512 | public function filterFulltext($searchterms) |
513 | { | |
514 | // FIXME: explode(' ',$searchterms) and perform a AND search. | |
515 | // FIXME: accept double-quotes to search for a string "as is" ? | |
516 | $filtered=array(); | |
517 | $s = strtolower($searchterms); | |
518 | foreach($this->links as $l) | |
519 | { | |
520 | $found=strpos(strtolower($l['title']),$s) || strpos(strtolower($l['description']),$s) || strpos(strtolower($l['url']),$s) || strpos(strtolower($l['tags']),$s); | |
521 | if ($found) $filtered[$l['linkdate']] = $l; | |
522 | } | |
523 | krsort($filtered); | |
524 | return $filtered; | |
525 | } | |
526 | ||
527 | // Filter by tag. | |
528 | // You can specify one or more tags (tags can be separated by space or comma). | |
529 | // eg. print_r($mydb->filterTags('linux programming')); | |
f4aba1ac | 530 | public function filterTags($tags,$casesensitive=false) |
ef734b5d | 531 | { |
f4aba1ac | 532 | $t = str_replace(',',' ',($casesensitive?$tags:strtolower($tags))); |
ef734b5d SS |
533 | $searchtags=explode(' ',$t); |
534 | $filtered=array(); | |
535 | foreach($this->links as $l) | |
536 | { | |
f4aba1ac | 537 | $linktags = explode(' ',($casesensitive?$l['tags']:strtolower($l['tags']))); |
ef734b5d SS |
538 | if (count(array_intersect($linktags,$searchtags)) == count($searchtags)) |
539 | $filtered[$l['linkdate']] = $l; | |
540 | } | |
541 | krsort($filtered); | |
542 | return $filtered; | |
44a9d860 | 543 | } |
ef734b5d | 544 | |
44a9d860 SS |
545 | // Returns the list of all tags |
546 | // Output: associative array key=tags, value=0 | |
547 | public function allTags() | |
548 | { | |
549 | $tags=array(); | |
550 | foreach($this->links as $link) | |
551 | foreach(explode(' ',$link['tags']) as $tag) | |
ca201236 SS |
552 | if (!empty($tag)) $tags[$tag]=(empty($tags[$tag]) ? 1 : $tags[$tag]+1); |
553 | arsort($tags); // Sort tags by usage (most used tag first) | |
44a9d860 | 554 | return $tags; |
f4aba1ac | 555 | } |
ef734b5d SS |
556 | } |
557 | ||
558 | // ------------------------------------------------------------------------------------------ | |
559 | // Ouput the last 50 links in RSS 2.0 format. | |
560 | function showRSS() | |
561 | { | |
562 | global $LINKSDB; | |
ca201236 SS |
563 | |
564 | // Optionnaly filter the results: | |
565 | $linksToDisplay=array(); | |
566 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
f4aba1ac | 567 | elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
ca201236 SS |
568 | else $linksToDisplay = $LINKSDB; |
569 | ||
ef734b5d SS |
570 | header('Content-Type: application/xhtml+xml; charset=utf-8'); |
571 | $pageaddr=htmlspecialchars(serverUrl().$_SERVER["SCRIPT_NAME"]); | |
572 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; | |
ba0718dc | 573 | echo '<channel><title>'.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>'; |
ef734b5d SS |
574 | echo '<description>Shared links</description><language></language><copyright>'.$pageaddr.'</copyright>'."\n\n"; |
575 | $i=0; | |
ca201236 | 576 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). |
ef734b5d SS |
577 | while ($i<50 && $i<count($keys)) |
578 | { | |
ca201236 | 579 | $link = $linksToDisplay[$keys[$i]]; |
ef734b5d | 580 | $rfc822date = linkdate2rfc822($link['linkdate']); |
e6a0ab54 SS |
581 | echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.htmlspecialchars($link['url']).'</guid><link>'.htmlspecialchars($link['url']).'</link>'; |
582 | if (!HIDE_TIMESTAMPS || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date).'</pubDate>'; | |
ba0718dc | 583 | echo '<description><![CDATA['.nl2br(htmlspecialchars($link['description'])).']]></description></item>'."\n"; |
ef734b5d SS |
584 | $i++; |
585 | } | |
586 | echo '</channel></rss>'; | |
587 | exit; | |
588 | } | |
589 | ||
590 | // ------------------------------------------------------------------------------------------ | |
591 | // Render HTML page: | |
592 | function renderPage() | |
593 | { | |
594 | global $STARTTIME; | |
595 | global $LINKSDB; | |
596 | ||
597 | // Well... rendering the page would be 100x better with the excellent Smarty, but I don't want to tie this minimalist project to 100+ files. | |
598 | // So I use a custom templating system. | |
599 | ||
600 | // -------- Display login form. | |
601 | if (startswith($_SERVER["QUERY_STRING"],'do=login')) | |
602 | { | |
44a9d860 | 603 | if (OPEN_SHAARLI) { header('Location: ?'); exit; } // No need to login for open Shaarli |
ef734b5d SS |
604 | if (!ban_canLogin()) |
605 | { | |
606 | $loginform='<div id="headerform">You have been banned from login after too many failed attempts. Try later.</div>'; | |
607 | $data = array('pageheader'=>$loginform,'body'=>'','onload'=>''); | |
608 | templatePage($data); | |
609 | exit; | |
610 | } | |
611 | $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : ''); | |
612 | $loginform='<div id="headerform"><form method="post" name="loginform">Login: <input type="text" name="login"> Password : <input type="password" name="password"> <input type="submit" value="Login" class="bigbutton"><input type="hidden" name="token" value="'.getToken().'">'.$returnurl_html.'</form></div>'; | |
613 | $onload = 'onload="document.loginform.login.focus();"'; | |
614 | $data = array('pageheader'=>$loginform,'body'=>'','onload'=>$onload); | |
615 | templatePage($data); | |
616 | exit; | |
617 | } | |
618 | ||
619 | // -------- User wants to logout. | |
620 | if (startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
621 | { | |
ca201236 | 622 | invalidateCaches(); |
ef734b5d SS |
623 | logout(); |
624 | header('Location: ?'); | |
625 | exit; | |
e6a0ab54 SS |
626 | } |
627 | ||
628 | // -------- Tag cloud | |
629 | if (startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) | |
630 | { | |
631 | $tags= $LINKSDB->allTags(); | |
f4aba1ac | 632 | // We sort tags alphabetically, then choose a font size according to count. |
e6a0ab54 SS |
633 | // First, find max value. |
634 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
635 | ksort($tags); | |
636 | $cloud=''; | |
637 | foreach($tags as $key=>$value) | |
638 | { | |
639 | $size = max(40*$value/$maxcount,8); // Minimum size 8. | |
640 | $colorvalue = 128-ceil(127*$value/$maxcount); | |
641 | $color='rgb('.$colorvalue.','.$colorvalue.','.$colorvalue.')'; | |
642 | $cloud.= '<span style="color:#99f; font-size:9pt; padding-left:5px; padding-right:2px;">'.$value.'</span><a href="?searchtags='.htmlspecialchars($key).'" style="font-size:'.$size.'pt; font-weight:bold; color:'.$color.';">'.htmlspecialchars($key).'</a> '; | |
643 | } | |
644 | $cloud='<div id="cloudtag">'.$cloud.'</div>'; | |
645 | $data = array('pageheader'=>'','body'=>$cloud,'onload'=>''); | |
646 | templatePage($data); | |
647 | exit; | |
648 | } | |
ef734b5d SS |
649 | |
650 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
651 | if (isset($_GET['addtag'])) | |
652 | { | |
653 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
4887ceda | 654 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER |
ef734b5d | 655 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); |
f4aba1ac | 656 | $params['searchtags'] = (empty($params['searchtags']) ? trim($_GET['addtag']) : trim($params['searchtags']).' '.urlencode(trim($_GET['addtag']))); |
ef734b5d SS |
657 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
658 | header('Location: ?'.http_build_query($params)); | |
659 | exit; | |
660 | } | |
661 | ||
662 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
663 | if (isset($_GET['removetag'])) | |
664 | { | |
665 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. | |
4887ceda | 666 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?'); exit; } // In case browser does not send HTTP_REFERER |
ef734b5d SS |
667 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); |
668 | if (isset($params['searchtags'])) | |
669 | { | |
670 | $tags = explode(' ',$params['searchtags']); | |
671 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
672 | if (count($tags)==0) unset($params['searchtags']); else $params['searchtags'] = implode(' ',$tags); | |
673 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
674 | } | |
675 | header('Location: ?'.http_build_query($params)); | |
676 | exit; | |
677 | } | |
678 | ||
679 | // -------- User wants to change the number of links per page (linksperpage=...) | |
680 | if (isset($_GET['linksperpage'])) | |
681 | { | |
682 | if (is_numeric($_GET['linksperpage'])) { $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); } | |
4887ceda | 683 | header('Location: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER'])); |
ef734b5d SS |
684 | exit; |
685 | } | |
686 | ||
687 | ||
688 | // -------- Handle other actions allowed for non-logged in users: | |
689 | if (!isLoggedIn()) | |
690 | { | |
691 | // User tries to post new link but is not loggedin: | |
692 | // Show login screen, then redirect to ?post=... | |
693 | if (isset($_GET['post'])) | |
694 | { | |
695 | header('Location: ?do=login&post='.urlencode($_GET['post']).(isset($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link. | |
696 | exit; | |
697 | } | |
698 | ||
699 | // Show search form and display list of links. | |
700 | $searchform=<<<HTML | |
701 | <div id="headerform" style="width:100%; white-space:nowrap;";> | |
702 | <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> | |
f4aba1ac | 703 | <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> |
ef734b5d SS |
704 | </div> |
705 | HTML; | |
f4aba1ac | 706 | $onload = 'onload="document.searchform.searchterm.focus();"'; |
ef734b5d SS |
707 | $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload); |
708 | templatePage($data); | |
ba0718dc | 709 | exit; // Never remove this one ! All operations below are reserved for logged in user. |
ef734b5d SS |
710 | } |
711 | ||
712 | // -------- All other functions are reserved for the registered user: | |
713 | ||
714 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
715 | if (startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
716 | { | |
717 | $pageabsaddr=serverUrl().$_SERVER["SCRIPT_NAME"]; // Why doesn't php have a built-in function for that ? | |
718 | // The javascript code for the bookmarklet: | |
f4aba1ac | 719 | $changepwd = (OPEN_SHAARLI ? '' : '<a href="?do=changepasswd"><b>Change password</b></a> - Change your password.<br><br>' ); |
ef734b5d | 720 | $toolbar= <<<HTML |
ca201236 | 721 | <div id="headerform"><br> |
f4aba1ac | 722 | {$changepwd} |
ba0718dc | 723 | <a href="?do=configure"><b>Configure your Shaarli</b></a> - Change Title, timezone...<br><br> |
f4aba1ac | 724 | <a href="?do=changetag"><b>Rename/delete tags</b></a> - Rename or delete a tag in all links.<br><br> |
ca201236 SS |
725 | <a href="?do=import"><b>Import</b></a> - Import Netscape html bookmarks (as exported from Firefox, Chrome, Opera, delicious...)<br><br> |
726 | <a href="?do=export"><b>Export</b></a> - Export Netscape html bookmarks (which can be imported in Firefox, Chrome, Opera, delicious...)<br><br> | |
727 | <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> | |
ef734b5d SS |
728 | </div> |
729 | HTML; | |
730 | $data = array('pageheader'=>$toolbar,'body'=>'','onload'=>''); | |
731 | templatePage($data); | |
732 | exit; | |
733 | } | |
f4aba1ac SS |
734 | |
735 | // -------- User wants to change his/her password. | |
736 | if (startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) | |
737 | { | |
738 | if (OPEN_SHAARLI) die('You are not supposed to change a password on an Open Shaarli.'); | |
739 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
740 | { | |
741 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! | |
742 | ||
743 | // Make sure old password is correct. | |
744 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
745 | if ($oldhash!=$GLOBALS['hash']) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } | |
f4aba1ac | 746 | // Save new password |
ba0718dc SS |
747 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. |
748 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
749 | writeConfig(); | |
f4aba1ac SS |
750 | echo '<script language="JavaScript">alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; |
751 | exit; | |
752 | } | |
753 | else | |
754 | { | |
755 | $token = getToken(); | |
756 | $changepwdform= <<<HTML | |
757 | <form method="POST" action="" name="changepasswordform" style="padding:10 10 10 10;"> | |
758 | Old password: <input type="password" name="oldpassword"> | |
759 | New password: <input type="password" name="setpassword"> | |
760 | <input type="hidden" name="token" value="{$token}"> | |
761 | <input type="submit" name="Save" value="Save password" class="bigbutton"></form> | |
762 | HTML; | |
763 | $data = array('pageheader'=>$changepwdform,'body'=>'','onload'=>'onload="document.changepasswordform.oldpassword.focus();"'); | |
764 | templatePage($data); | |
765 | exit; | |
766 | } | |
767 | } | |
ba0718dc SS |
768 | |
769 | // -------- User wants to change configuration | |
770 | if (startswith($_SERVER["QUERY_STRING"],'do=configure')) | |
771 | { | |
772 | if (!empty($_POST['title']) ) | |
773 | { | |
774 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! | |
775 | $tz = 'UTC'; | |
776 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
777 | if (isTZvalid($_POST['continent'],$_POST['city'])) | |
778 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
779 | $GLOBALS['timezone'] = $tz; | |
780 | $GLOBALS['title']=$_POST['title']; | |
781 | writeConfig(); | |
782 | echo '<script language="JavaScript">alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; | |
783 | exit; | |
784 | } | |
785 | else | |
786 | { | |
787 | $token = getToken(); | |
788 | $title = htmlspecialchars( empty($GLOBALS['title']) ? '' : $GLOBALS['title'] , ENT_QUOTES); | |
789 | list($timezone_form,$timezone_js) = templateTZform($GLOBALS['timezone']); | |
790 | $timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td valign="top"><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
791 | $changepwdform= <<<HTML | |
792 | ${timezone_js}<form method="POST" action="" name="configform" id="configform"><input type="hidden" name="token" value="{$token}"> | |
793 | <table border="0" cellpadding="20"> | |
794 | <tr><td><b>Page title:</b></td><td><input type="text" name="title" id="title" size="50" value="{$title}"></td></tr> | |
795 | {$timezone_html} | |
796 | <tr><td></td><td align="right"><input type="submit" name="Save" value="Save config" class="bigbutton"></td></tr> | |
797 | </table> | |
798 | </form> | |
799 | HTML; | |
800 | $data = array('pageheader'=>$changepwdform,'body'=>'','onload'=>'onload="document.configform.title.focus();"'); | |
801 | templatePage($data); | |
802 | exit; | |
803 | } | |
804 | } | |
f4aba1ac SS |
805 | |
806 | // -------- User wants to rename a tag or delete it | |
807 | if (startswith($_SERVER["QUERY_STRING"],'do=changetag')) | |
808 | { | |
809 | if (empty($_POST['fromtag'])) | |
810 | { | |
811 | $token = getToken(); | |
812 | $changetagform = <<<HTML | |
813 | <form method="POST" action="" name="changetag" style="padding:10 10 10 10;"> | |
814 | <input type="hidden" name="token" value="{$token}"> | |
815 | Tag: <input type="text" name="fromtag" id="fromtag"> | |
816 | <input type="text" name="totag" style="margin-left:40px;"><input type="submit" name="renametag" value="Rename tag" class="bigbutton"> | |
817 | or <input type="submit" name="deletetag" value="Delete tag" class="bigbutton" onClick="return confirmDeleteTag();"><br>(Case sensitive)</form> | |
818 | <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> | |
819 | HTML; | |
820 | $data = array('pageheader'=>$changetagform,'body'=>'','onload'=>'onload="document.changetag.fromtag.focus();"'); | |
821 | templatePage($data); | |
822 | exit; | |
823 | } | |
824 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
825 | ||
826 | if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) | |
827 | { | |
828 | $needle=trim($_POST['fromtag']); | |
829 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
830 | foreach($linksToAlter as $key=>$value) | |
831 | { | |
832 | $tags = explode(' ',trim($value['tags'])); | |
833 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
834 | $value['tags']=trim(implode(' ',$tags)); | |
835 | $LINKSDB[$key]=$value; | |
836 | } | |
837 | $LINKSDB->savedb(); // save to disk | |
838 | invalidateCaches(); | |
839 | echo '<script language="JavaScript">alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; | |
840 | exit; | |
841 | } | |
842 | ||
843 | // Rename a tag: | |
844 | if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) | |
845 | { | |
846 | $needle=trim($_POST['fromtag']); | |
847 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
848 | foreach($linksToAlter as $key=>$value) | |
849 | { | |
850 | $tags = explode(' ',trim($value['tags'])); | |
851 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Remplace tags value. | |
852 | $value['tags']=trim(implode(' ',$tags)); | |
853 | $LINKSDB[$key]=$value; | |
854 | } | |
855 | $LINKSDB->savedb(); // save to disk | |
856 | invalidateCaches(); | |
857 | echo '<script language="JavaScript">alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; | |
858 | exit; | |
859 | } | |
860 | } | |
ef734b5d SS |
861 | |
862 | // -------- User wants to add a link without using the bookmarklet: show form. | |
863 | if (startswith($_SERVER["QUERY_STRING"],'do=addlink')) | |
864 | { | |
f4aba1ac | 865 | $onload = 'onload="document.addform.post.focus();"'; |
ef734b5d SS |
866 | $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>'; |
867 | $data = array('pageheader'=>$addform,'body'=>'','onload'=>$onload); | |
868 | templatePage($data); | |
869 | exit; | |
870 | } | |
871 | ||
872 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
873 | if (isset($_POST['save_edit'])) | |
874 | { | |
875 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! | |
ba0718dc | 876 | $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. |
ef734b5d SS |
877 | $linkdate=$_POST['lf_linkdate']; |
878 | $link = array('title'=>trim($_POST['lf_title']),'url'=>trim($_POST['lf_url']),'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
ba0718dc | 879 | 'linkdate'=>$linkdate,'tags'=>$tags); |
ef734b5d SS |
880 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. |
881 | $LINKSDB[$linkdate] = $link; | |
882 | $LINKSDB->savedb(); // save to disk | |
ca201236 | 883 | invalidateCaches(); |
ef734b5d SS |
884 | |
885 | // If we are called from the bookmarklet, we must close the popup: | |
886 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
4887ceda SS |
887 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
888 | header('Location: '.$returnurl); // After saving the link, redirect to the page the user was on. | |
ef734b5d SS |
889 | exit; |
890 | } | |
891 | ||
892 | // -------- User clicked the "Cancel" button when editing a link. | |
893 | if (isset($_POST['cancel_edit'])) | |
894 | { | |
895 | // If we are called from the bookmarklet, we must close the popup; | |
896 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
897 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); | |
898 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. | |
899 | exit; | |
900 | } | |
901 | ||
902 | // -------- User clicked the "Delete" button when editing a link : Delete link from database. | |
903 | if (isset($_POST['delete_link'])) | |
904 | { | |
905 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
906 | // We do not need to ask for confirmation: | |
907 | // - confirmation is handled by javascript | |
908 | // - we are protected from XSRF by the token. | |
909 | $linkdate=$_POST['lf_linkdate']; | |
910 | unset($LINKSDB[$linkdate]); | |
911 | $LINKSDB->savedb(); // save to disk | |
ca201236 | 912 | invalidateCaches(); |
ef734b5d SS |
913 | // If we are called from the bookmarklet, we must close the popup: |
914 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
915 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); | |
916 | header('Location: '.$returnurl); // After deleting the link, redirect to the page the user was on. | |
917 | exit; | |
918 | } | |
919 | ||
920 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
921 | if (isset($_GET['edit_link'])) | |
922 | { | |
923 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
924 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
925 | list($editform,$onload)=templateEditForm($link); | |
926 | $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload); | |
927 | templatePage($data); | |
928 | exit; | |
929 | } | |
930 | ||
931 | // -------- User want to post a new link: Display link edit form. | |
932 | if (isset($_GET['post'])) | |
933 | { | |
934 | $url=$_GET['post']; | |
935 | ||
936 | // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...) | |
937 | $i=strpos($url,'&utm_source='); if ($i) $url=substr($url,0,$i); | |
938 | $i=strpos($url,'?utm_source='); if ($i) $url=substr($url,0,$i); | |
eae4f48b | 939 | $i=strpos($url,'#xtor=RSS-'); if ($i) $url=substr($url,0,$i); |
ef734b5d SS |
940 | |
941 | $link_is_new = false; | |
942 | $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link) | |
943 | if (!$link) | |
944 | { | |
945 | $link_is_new = true; // This is a new link | |
946 | $linkdate = strval(date('Ymd_His')); | |
947 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). | |
948 | $description=''; $tags=''; $private=0; | |
949 | if (parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; | |
950 | // 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.) | |
951 | if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') | |
952 | { | |
953 | list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. | |
1e49378a SS |
954 | // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html |
955 | if (strpos($status,'200 OK')) $title=html_entity_decode(html_extract_title($data),ENT_QUOTES,'UTF-8'); | |
ef734b5d SS |
956 | } |
957 | $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>0); | |
958 | } | |
959 | list($editform,$onload)=templateEditForm($link,$link_is_new); | |
960 | $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload); | |
961 | templatePage($data); | |
962 | exit; | |
963 | } | |
964 | ||
965 | // -------- Export as Netscape Bookmarks HTML file. | |
966 | if (startswith($_SERVER["QUERY_STRING"],'do=export')) | |
ca201236 SS |
967 | { |
968 | if (empty($_GET['what'])) | |
969 | { | |
970 | $toolbar= <<<HTML | |
971 | <div id="headerform"><br> | |
972 | <a href="?do=export&what=all"><b>Export all</b></a> - Export all links<br><br> | |
973 | <a href="?do=export&what=public"><b>Export public</b></a> - Export public links only<br><br> | |
974 | <a href="?do=export&what=private"><b>Export private</b></a> - Export private links only<br><br> | |
975 | </div> | |
976 | HTML; | |
977 | $data = array('pageheader'=>$toolbar,'body'=>'','onload'=>''); | |
978 | templatePage($data); | |
979 | exit; | |
980 | } | |
981 | $exportWhat=$_GET['what']; | |
982 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export ???'); | |
983 | ||
ef734b5d | 984 | header('Content-Type: text/html; charset=utf-8'); |
ca201236 | 985 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); |
ef734b5d SS |
986 | echo <<<HTML |
987 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
988 | <!-- This is an automatically generated file. | |
989 | It will be read and overwritten. | |
990 | DO NOT EDIT! --> | |
991 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
992 | <TITLE>Bookmarks</TITLE> | |
993 | <H1>Bookmarks</H1> | |
994 | HTML; | |
995 | foreach($LINKSDB as $link) | |
996 | { | |
ca201236 SS |
997 | if ($exportWhat=='all' || |
998 | ($exportWhat=='private' && $link['private']!=0) || | |
999 | ($exportWhat=='public' && $link['private']==0)) | |
1000 | { | |
1001 | echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; | |
1002 | if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"'; | |
1003 | echo '>'.htmlspecialchars($link['title'])."</A>\n"; | |
1004 | if ($link['description']!='') echo '<DD>'.htmlspecialchars($link['description'])."\n"; | |
1005 | } | |
ef734b5d | 1006 | } |
ca201236 | 1007 | echo '<!-- Shaarli '.$exportWhat.' bookmarks export on '.date('Y/m/d H:i:s')."-->\n"; |
ef734b5d SS |
1008 | exit; |
1009 | } | |
1010 | ||
1011 | // -------- User is uploading a file for import | |
1012 | if (startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1013 | { | |
1014 | // If file is too big, some form field may be missing. | |
1015 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1016 | { | |
1017 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
1018 | echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>'; | |
1019 | exit; | |
1020 | } | |
1021 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1022 | importFile(); | |
1023 | exit; | |
1024 | } | |
1025 | ||
1026 | // -------- Show upload/import dialog: | |
1027 | if (startswith($_SERVER["QUERY_STRING"],'do=import')) | |
1028 | { | |
1029 | $token = getToken(); | |
1030 | $maxfilesize=getMaxFileSize(); | |
1031 | $onload = 'onload="document.uploadform.filetoupload.focus();"'; | |
1032 | $uploadform=<<<HTML | |
1033 | <div id="headerform"> | |
1034 | Import Netscape html bookmarks (as exported from Firefox/Chrome/Opera/delicious/diigo...) (Max: {$maxfilesize} bytes). | |
1035 | <form method="POST" action="?do=upload" enctype="multipart/form-data" name="uploadform"> | |
f4aba1ac | 1036 | <input type="hidden" name="token" value="{$token}"> |
ef734b5d SS |
1037 | <input type="file" name="filetoupload" size="80"> |
1038 | <input type="hidden" name="MAX_FILE_SIZE" value="{$maxfilesize}"> | |
ca201236 | 1039 | <input type="submit" name="import_file" value="Import" class="bigbutton"><br> |
f4aba1ac SS |
1040 | <input type="checkbox" name="private"> Import all links as private<br> |
1041 | <input type="checkbox" name="overwrite"> Overwrite existing links | |
ef734b5d SS |
1042 | </form> |
1043 | </div> | |
1044 | HTML; | |
1045 | $data = array('pageheader'=>$uploadform,'body'=>'','onload'=>$onload ); | |
1046 | templatePage($data); | |
1047 | exit; | |
1048 | } | |
1049 | ||
1050 | // -------- Otherwise, simply display search form and links: | |
1051 | $searchform=<<<HTML | |
1052 | <div id="headerform" style="width:100%; white-space:nowrap;";> | |
1053 | <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> | |
f4aba1ac | 1054 | <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> |
ef734b5d SS |
1055 | </div> |
1056 | HTML; | |
f4aba1ac | 1057 | $onload = 'onload="document.searchform.searchterm.focus();"'; |
ef734b5d SS |
1058 | $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload); |
1059 | templatePage($data); | |
1060 | exit; | |
1061 | } | |
1062 | ||
1063 | // ----------------------------------------------------------------------------------------------- | |
1064 | // Process the import file form. | |
1065 | function importFile() | |
1066 | { | |
1067 | global $LINKSDB; | |
1068 | $filename=$_FILES['filetoupload']['name']; | |
1069 | $filesize=$_FILES['filetoupload']['size']; | |
1070 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
ca201236 | 1071 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private ? |
eae4f48b SS |
1072 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones ? |
1073 | $import_count=0; | |
ef734b5d SS |
1074 | |
1075 | // Sniff file type: | |
1076 | $type='unknown'; | |
1077 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1078 | ||
1079 | // Then import the bookmarks. | |
1080 | if ($type=='netscape') | |
1081 | { | |
1082 | // This is a standard Netscape-style bookmark file. | |
1083 | // This format is supported by all browsers (except IE, of course), also delicious, diigo and others. | |
1084 | // I didn't want to use DOM... anyway, this is FAST (less than 1 second to import 7200 links (2.1 Mb html file)). | |
ef734b5d SS |
1085 | foreach(explode('<DT>',$data) as $html) // explode is very fast |
1086 | { | |
1087 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1088 | $d = explode('<DD>',$html); | |
1089 | if (startswith($d[0],'<A ')) | |
1090 | { | |
eae4f48b | 1091 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) |
ef734b5d | 1092 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title |
eae4f48b | 1093 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); |
ef734b5d SS |
1094 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes |
1095 | foreach($matches as $m) | |
1096 | { | |
1097 | $attr=$m[1]; $value=$m[2]; | |
eae4f48b | 1098 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); |
ef734b5d SS |
1099 | elseif ($attr=='ADD_DATE') $link['linkdate']=date('Ymd_His',intval($value)); |
1100 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); | |
eae4f48b | 1101 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); |
ef734b5d | 1102 | } |
eae4f48b | 1103 | if ($link['linkdate']!='' && $link['url']!='' && ($overwrite || empty($LINKSDB[$link['linkdate']]))) |
ca201236 SS |
1104 | { |
1105 | if ($private==1) $link['private']=1; | |
1106 | $LINKSDB[$link['linkdate']] = $link; | |
eae4f48b | 1107 | $import_count++; |
ca201236 | 1108 | } |
ef734b5d SS |
1109 | } |
1110 | } | |
ef734b5d | 1111 | $LINKSDB->savedb(); |
ca201236 | 1112 | invalidateCaches(); |
eae4f48b | 1113 | echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; |
ef734b5d SS |
1114 | } |
1115 | else | |
1116 | { | |
1117 | echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | // ----------------------------------------------------------------------------------------------- | |
1122 | /* Template for the edit link form | |
1123 | Input: $link : link to edit (assocative array item as returned by the LINKDB class) | |
1124 | Output: An array : (string) : The html code of the edit link form. | |
1125 | (string) : The proper onload to use in body. | |
1126 | Example: list($html,$onload)=templateEditForm($mylinkdb['20110805_124532']); | |
1127 | echo $html; | |
1128 | */ | |
1129 | function templateEditForm($link,$link_is_new=false) | |
1130 | { | |
1131 | $url=htmlspecialchars($link['url']); | |
1132 | $title=htmlspecialchars($link['title']); | |
1133 | $tags=htmlspecialchars($link['tags']); | |
1134 | $description=htmlspecialchars($link['description']); | |
1135 | $private = ($link['private']==0 ? '' : 'checked="yes"'); | |
1136 | ||
1137 | // Automatically focus on empty fields: | |
1138 | $onload='onload="document.linkform.lf_tags.focus();"'; | |
1139 | if ($description=='') $onload='onload="document.linkform.lf_description.focus();"'; | |
1140 | if ($title=='') $onload='onload="document.linkform.lf_title.focus();"'; | |
1141 | ||
1142 | // Do not show "Delete" button if this is a new link. | |
1143 | $delete_button = '<input type="submit" value="Delete" name="delete_link" class="bigbutton" style="margin-left:180px;" onClick="return confirmDeleteLink();">'; | |
1144 | if ($link_is_new) $delete_button=''; | |
1145 | ||
1146 | $token=getToken(); // XSRF protection. | |
1147 | $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : ''); | |
1148 | $editlinkform=<<<HTML | |
1149 | <div id="editlinkform"> | |
1150 | <form method="post" name="linkform"> | |
1151 | <input type="hidden" name="lf_linkdate" value="{$link['linkdate']}"> | |
1152 | <i>URL</i><br><input type="text" name="lf_url" value="{$url}" style="width:100%"><br> | |
1153 | <i>Title</i><br><input type="text" name="lf_title" value="{$title}" style="width:100%"><br> | |
1154 | <i>Description</i><br><textarea name="lf_description" rows="4" cols="25" style="width:100%">{$description}</textarea><br> | |
44a9d860 | 1155 | <i>Tags</i><br><input type="text" id="lf_tags" name="lf_tags" value="{$tags}" style="width:100%"><br> |
ef734b5d SS |
1156 | <input type="checkbox" {$private} style="margin:7 0 10 0;" name="lf_private"> <i>Private</i><br> |
1157 | <input type="submit" value="Save" name="save_edit" class="bigbutton" style="margin-left:40px;"> | |
1158 | <input type="submit" value="Cancel" name="cancel_edit" class="bigbutton" style="margin-left:40px;"> | |
1159 | {$delete_button} | |
1160 | <input type="hidden" name="token" value="{$token}"> | |
1161 | {$returnurl_html} | |
1162 | </form> | |
1163 | </div> | |
1164 | HTML; | |
1165 | return array($editlinkform,$onload); | |
1166 | } | |
1167 | ||
1168 | ||
1169 | // ----------------------------------------------------------------------------------------------- | |
1170 | // Template for the list of links. | |
1171 | // Returns html code to show the list of link according to parameters passed in URL (search terms, page...) | |
1172 | function templateLinkList() | |
1173 | { | |
1174 | global $LINKSDB; | |
1175 | ||
1176 | // Search according to entered search terms: | |
1177 | $linksToDisplay=array(); | |
1178 | $searched=''; | |
1179 | if (!empty($_GET['searchterm'])) // Fulltext search | |
1180 | { | |
f4aba1ac SS |
1181 | $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm'])); |
1182 | $searched=' <b>'.count($linksToDisplay).' results for <i>'.htmlspecialchars(trim($_GET['searchterm'])).'</i></b>:'; | |
ef734b5d SS |
1183 | } |
1184 | elseif (!empty($_GET['searchtags'])) // Search by tag | |
1185 | { | |
f4aba1ac SS |
1186 | $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
1187 | $tagshtml=''; foreach(explode(' ',trim($_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> '; | |
ef734b5d SS |
1188 | $searched=' <b>'.count($linksToDisplay).' results for tags '.$tagshtml.':</b>'; |
1189 | } | |
1190 | else | |
1191 | $linksToDisplay = $LINKSDB; // otherwise, display without filtering. | |
1192 | ||
1193 | $linklist=''; | |
1194 | $actions=''; | |
1195 | ||
1196 | // Handle paging. | |
1197 | /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ??? | |
1198 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " | |
1199 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
1200 | */ | |
1201 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks php. | |
1202 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
1203 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
1204 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
1205 | $page = ( $page<1 ? 1 : $page ); | |
1206 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
1207 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
1208 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
1209 | while ($i<$end && $i<count($keys)) | |
1210 | { | |
1211 | $link = $linksToDisplay[$keys[$i]]; | |
1212 | $description=$link['description']; | |
1213 | $title=$link['title']; | |
1214 | $classprivate = ($link['private']==0 ? '' : 'class="private"'); | |
1215 | 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>'; | |
1216 | $tags=''; | |
1217 | if ($link['tags']!='') foreach(explode(' ',$link['tags']) as $tag) { $tags.='<span class="linktag" title="Add tag"><a href="?addtag='.htmlspecialchars($tag).'">'.htmlspecialchars($tag).'</a></span> '; } | |
1218 | $linklist.='<li '.$classprivate.'><span class="linktitle"><a href="'.htmlspecialchars($link['url']).'">'.htmlspecialchars($title).'</a></span>'.$actions.'<br>'; | |
4887ceda | 1219 | if ($description!='') $linklist.='<div class="linkdescription">'.nl2br(htmlspecialchars($description)).'</div><br>'; |
e6a0ab54 SS |
1220 | if (!HIDE_TIMESTAMPS || isLoggedIn()) $linklist.='<span class="linkdate">'.htmlspecialchars(linkdate2locale($link['linkdate'])).' - </span>'; |
1221 | $linklist.='<span class="linkurl">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</li>\n"; | |
ef734b5d SS |
1222 | $i++; |
1223 | } | |
1224 | ||
1225 | // Show paging. | |
1226 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
1227 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
1228 | $paging=''; | |
1229 | if ($i!=count($keys)) $paging.='<a href="?page='.($page+1).$searchterm.$searchtags.'">◄Older</a>'; | |
1230 | $paging.= '<span style="color:#fff; padding:0 20 0 20;">page '.$page.' / '.$pagecount.'</span>'; | |
1231 | if ($page>1) $paging.='<a href="?page='.($page-1).$searchterm.$searchtags.'">Newer►</a>'; | |
1232 | $linksperpage = <<<HTML | |
1233 | <div style="float:right; padding-right:5px;"> | |
1234 | Links per page: <a href="?linksperpage=20">20</a> <a href="?linksperpage=50">50</a> <a href="?linksperpage=100">100</a> | |
1235 | <form method="GET" style="display:inline;"><input type="text" name="linksperpage" size="2" style="height:15px;"></form></div> | |
1236 | HTML; | |
1237 | $paging = '<div class="paging">'.$linksperpage.$paging.'</div>'; | |
1238 | $linklist='<div id="linklist">'.$paging.$searched.'<ul>'.$linklist.'</ul>'.$paging.'</div>'; | |
1239 | return $linklist; | |
1240 | } | |
1241 | ||
1242 | // ----------------------------------------------------------------------------------------------- | |
1243 | // Template for the whole page. | |
1244 | /* Input: $data (associative array). | |
1245 | Keys: 'body' : body of HTML document | |
1246 | 'pageheader' : html code to show in page header (top of page) | |
1247 | 'onload' : optional onload javascript for the <body> | |
1248 | */ | |
1249 | function templatePage($data) | |
1250 | { | |
1251 | global $STARTTIME; | |
1252 | global $LINKSDB; | |
1253 | $shaarli_version = shaarli_version; | |
e6a0ab54 SS |
1254 | |
1255 | $newversion=checkUpdate(); | |
1256 | if ($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>'; | |
44a9d860 SS |
1257 | $linkcount = count($LINKSDB); |
1258 | $open=''; | |
1259 | if (OPEN_SHAARLI) | |
1260 | { | |
1261 | $menu=' <a href="?do=tools">Tools</a> <a href="?do=addlink"><b>Add link</b></a>'; | |
1262 | $open='Open '; | |
1263 | } | |
1264 | else | |
f4aba1ac SS |
1265 | $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>'); |
1266 | ||
ef734b5d SS |
1267 | foreach(array('pageheader','body','onload') as $k) // make sure all required fields exist (put an empty string if not). |
1268 | { | |
1269 | if (!array_key_exists($k,$data)) $data[$k]=''; | |
1270 | } | |
44a9d860 SS |
1271 | $jsincludes=''; $jsincludes_bottom = ''; |
1272 | if (OPEN_SHAARLI || isLoggedIn()) | |
1273 | { | |
1274 | $jsincludes='<script language="JavaScript" src="jquery.min.js"></script><script language="JavaScript" src="jquery-ui.custom.min.js"></script>'; | |
f4aba1ac | 1275 | $source = serverUrl().$_SERVER['SCRIPT_NAME']; |
44a9d860 | 1276 | $jsincludes_bottom = <<<JS |
f4aba1ac | 1277 | <script language="JavaScript"> |
44a9d860 SS |
1278 | $(document).ready(function() |
1279 | { | |
f4aba1ac SS |
1280 | $('#lf_tags').autocomplete({source:'{$source}?ws=tags',minLength:1}); |
1281 | $('#searchtags').autocomplete({source:'{$source}?ws=tags',minLength:1}); | |
1282 | $('#fromtag').autocomplete({source:'{$source}?ws=singletag',minLength:1}); | |
1283 | }); | |
1284 | </script> | |
44a9d860 SS |
1285 | JS; |
1286 | } | |
f4aba1ac SS |
1287 | $feedurl=htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME'].'?do=rss'); |
1288 | if (!empty($_GET['searchtags'])) $feedurl.='&searchtags='.$_GET['searchtags']; | |
1289 | elseif (!empty($_GET['searchterm'])) $feedurl.='&searchterm='.$_GET['searchterm']; | |
1290 | ||
ba0718dc | 1291 | $title = htmlspecialchars( $GLOBALS['title'] ); |
ef734b5d SS |
1292 | echo <<<HTML |
1293 | <html> | |
1294 | <head> | |
ba0718dc | 1295 | <title>{$title}</title> |
eae4f48b SS |
1296 | <link rel="alternate" type="application/rss+xml" href="{$feedurl}" /> |
1297 | <link type="text/css" rel="stylesheet" href="shaarli.css" /> | |
44a9d860 | 1298 | {$jsincludes} |
ef734b5d | 1299 | </head> |
e6a0ab54 | 1300 | <body {$data['onload']}>{$newversion} |
ef734b5d | 1301 | <div id="pageheader"><div style="float:right; font-style:italic; color:#bbb; text-align:right; padding:0 5 0 0;">Shaare your links...<br>{$linkcount} links</div> |
ba0718dc | 1302 | <b><i>{$title}</i></b> - <a href="?">Home</a> {$menu} <a href="{$feedurl}" style="padding-left:30px;">RSS Feed</a> |
e6a0ab54 SS |
1303 | <a href="?do=tagcloud">Tag cloud</a> |
1304 | {$data['pageheader']} | |
ef734b5d SS |
1305 | </div> |
1306 | {$data['body']} | |
1307 | ||
1308 | HTML; | |
1309 | $exectime = round(microtime(true)-$STARTTIME,4); | |
1310 | 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>'; | |
1311 | 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>'; | |
44a9d860 | 1312 | echo $jsincludes_bottom.'</body></html>'; |
ef734b5d SS |
1313 | } |
1314 | ||
1315 | // ----------------------------------------------------------------------------------------------- | |
1316 | // Installation | |
1317 | // This function should NEVER be called if the file data/config.php exists. | |
1318 | function install() | |
1319 | { | |
eae4f48b SS |
1320 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. |
1321 | if (endsWith($_SERVER['SERVER_NAME'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); | |
1322 | ||
4887ceda | 1323 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) |
ef734b5d | 1324 | { |
ba0718dc SS |
1325 | $tz = 'UTC'; |
1326 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
1327 | if (isTZvalid($_POST['continent'],$_POST['city'])) | |
1328 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
1329 | $GLOBALS['timezone'] = $tz; | |
4887ceda | 1330 | // Everything is ok, let's create config file. |
ba0718dc SS |
1331 | $GLOBALS['login'] = $_POST['setlogin']; |
1332 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1333 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
1334 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME']) : $_POST['title'] ); | |
1335 | writeConfig(); | |
4887ceda SS |
1336 | echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location=\'?do=login\';</script>'; |
1337 | exit; | |
4887ceda | 1338 | } |
ba0718dc SS |
1339 | |
1340 | // Display config form: | |
1341 | list($timezone_form,$timezone_js) = templateTZform(); | |
1342 | $timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td valign="top"><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
ef734b5d | 1343 | echo <<<HTML |
ba0718dc SS |
1344 | <html><head><title>Shaarli - Configuration</title><link type="text/css" rel="stylesheet" href="shaarli.css" />${timezone_js}</head> |
1345 | <body onload="document.installform.setlogin.focus();" style="padding:20px;"><h1>Shaarli - Shaare your links...</h1> | |
1346 | It looks like it's the first time you run Shaarli. Please configure it:<br> | |
1347 | <form method="POST" action="" name="installform" id="installform" style="border:1px solid black; padding:10 10 10 10;"> | |
1348 | <table border="0" cellpadding="20"> | |
1349 | <tr><td><b>Login:</b></td><td><input type="text" name="setlogin" size="30"></td></tr> | |
1350 | <tr><td><b>Password:</b></td><td><input type="password" name="setpassword" size="30"></td></tr> | |
1351 | {$timezone_html} | |
1352 | <tr><td><b>Page title:</b></td><td><input type="text" name="title" size="30"></td></tr> | |
1353 | <tr><td></td><td align="right"><input type="submit" name="Save" value="Save config" class="bigbutton"></td></tr> | |
1354 | </table> | |
1355 | </form></body></html> | |
ef734b5d SS |
1356 | HTML; |
1357 | exit; | |
1358 | } | |
1359 | ||
ba0718dc SS |
1360 | // Generates the timezone selection form and javascript. |
1361 | // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected. | |
1362 | // Output: array(html,js) | |
1363 | // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected. | |
1364 | // Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr) | |
1365 | function templateTZform($ptz=false) | |
1366 | { | |
1367 | if (function_exists('timezone_identifiers_list')) // because of old php version (5.1) which can be found on free.fr | |
1368 | { | |
1369 | // Try to split the provided timezone. | |
1370 | if ($ptz==false) { $l=timezone_identifiers_list(); $ptz=$l[0]; } | |
1371 | $spos=strpos($ptz,'/'); $pcontinent=substr($ptz,0,$spos); $pcity=substr($ptz,$spos+1); | |
1372 | ||
1373 | // Display config form: | |
1374 | $timezone_form = ''; | |
1375 | $timezone_js = ''; | |
1376 | // The list is in the forme "Europe/Paris", "America/Argentina/Buenos_Aires"... | |
1377 | // We split the list in continents/cities. | |
1378 | $continents = array(); | |
1379 | $cities = array(); | |
1380 | foreach(timezone_identifiers_list() as $tz) | |
1381 | { | |
1382 | if ($tz=='UTC') $tz='UTC/UTC'; | |
1383 | $spos = strpos($tz,'/'); | |
1384 | if ($spos) | |
1385 | { | |
1386 | $continent=substr($tz,0,$spos); $city=substr($tz,$spos+1); | |
1387 | $continents[$continent]=1; | |
1388 | if (!isset($cities[$continent])) $cities[$continent]=array(); | |
1389 | $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?'selected':'').'>'.$city.'</option>'; | |
1390 | } | |
1391 | } | |
1392 | $continents_html = ''; | |
1393 | $continents = array_keys($continents); | |
1394 | foreach($continents as $continent) | |
1395 | $continents_html.='<option value="'.$continent.'"'.($pcontinent==$continent?'selected':'').'>'.$continent.'</option>'; | |
1396 | $cities_html = $cities[$pcontinent]; | |
1397 | $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select><br /><br />"; | |
1398 | $timezone_form .= "City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br /><br />"; | |
1399 | $timezone_js = "<script language=\"JavaScript\">"; | |
1400 | $timezone_js .= "function onChangecontinent(){document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];}"; | |
1401 | $timezone_js .= "var citiescontinent = ".json_encode($cities).";" ; | |
1402 | $timezone_js .= "</script>" ; | |
1403 | return array($timezone_form,$timezone_js); | |
1404 | } | |
1405 | return array('',''); | |
1406 | } | |
1407 | ||
1408 | // Tells if a timezone is valid or not. | |
1409 | // If not valid, returns false. | |
1410 | // If system does not support timezone list, returns false. | |
1411 | function isTZvalid($continent,$city) | |
1412 | { | |
1413 | $tz = $continent.'/'.$city; | |
1414 | if (function_exists('timezone_identifiers_list')) // because of old php version (5.1) which can be found on free.fr | |
1415 | { | |
1416 | if (in_array($tz, timezone_identifiers_list())) // it's a valid timezone ? | |
1417 | return true; | |
1418 | } | |
1419 | return false; | |
1420 | } | |
1421 | ||
1422 | ||
44a9d860 SS |
1423 | // Webservices (for use with jQuery/jQueryUI) |
1424 | // eg. index.php?ws=tags&term=minecr | |
1425 | function processWS() | |
1426 | { | |
1427 | if (empty($_GET['ws']) || empty($_GET['term'])) return; | |
1428 | $term = $_GET['term']; | |
1429 | global $LINKSDB; | |
1430 | header('Content-Type: application/json; charset=utf-8'); | |
1431 | ||
f4aba1ac | 1432 | // Search in tags (case insentitive, cumulative search) |
44a9d860 SS |
1433 | if ($_GET['ws']=='tags') |
1434 | { | |
1435 | $tags=explode(' ',$term); $last = array_pop($tags); // Get the last term ("a b c d" ==> "a b c", "d") | |
1436 | $addtags=''; if ($tags) $addtags=implode(' ',$tags).' '; // We will pre-pend previous tags | |
1437 | $suggested=array(); | |
1438 | /* To speed up things, we store list of tags in session */ | |
1439 | if (empty($_SESSION['tags'])) $_SESSION['tags'] = $LINKSDB->allTags(); | |
1440 | foreach($_SESSION['tags'] as $key=>$value) | |
1441 | { | |
1442 | if (startsWith($key,$last,$case=false)) $suggested[$addtags.$key.' ']=0; | |
1443 | } | |
1444 | echo json_encode(array_keys($suggested)); | |
1445 | exit; | |
1446 | } | |
f4aba1ac SS |
1447 | |
1448 | // Search a single tag (case sentitive, single tag search) | |
1449 | if ($_GET['ws']=='singletag') | |
1450 | { | |
1451 | /* To speed up things, we store list of tags in session */ | |
1452 | if (empty($_SESSION['tags'])) $_SESSION['tags'] = $LINKSDB->allTags(); | |
1453 | foreach($_SESSION['tags'] as $key=>$value) | |
1454 | { | |
1455 | if (startsWith($key,$term,$case=true)) $suggested[$key]=0; | |
1456 | } | |
1457 | echo json_encode(array_keys($suggested)); | |
1458 | exit; | |
1459 | } | |
44a9d860 SS |
1460 | } |
1461 | ||
ba0718dc SS |
1462 | // Re-write configuration file according to globals. |
1463 | // Requires some $GLOBALS to be set (login,hash,salt,title). | |
1464 | // If the config file cannot be saved, an error message is dislayed and the user is redirected to "Tools" menu. | |
1465 | // (otherwise, the function simply returns.) | |
1466 | function writeConfig() | |
1467 | { | |
1468 | if (is_file(CONFIG_FILE) && !isLoggedIn()) die('You are not authorized to alter config.'); // Only logged in user can alter config. | |
1469 | $config='<?php $GLOBALS[\'login\']='.var_export($GLOBALS['login'],true).'; $GLOBALS[\'hash\']='.var_export($GLOBALS['hash'],true).'; $GLOBALS[\'salt\']='.var_export($GLOBALS['salt'],true).'; '; | |
1470 | $config .='$GLOBALS[\'timezone\']='.var_export($GLOBALS['timezone'],true).'; date_default_timezone_set('.var_export($GLOBALS['timezone'],true).'); $GLOBALS[\'title\']='.var_export($GLOBALS['title'],true).'; ?>'; | |
1471 | if (!file_put_contents(CONFIG_FILE,$config) || strcmp(file_get_contents(CONFIG_FILE),$config)!=0) | |
1472 | { | |
1473 | 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>'; | |
1474 | exit; | |
1475 | } | |
1476 | } | |
1477 | ||
ca201236 SS |
1478 | // Invalidate caches when the database is changed or the user logs out. |
1479 | // (eg. tags cache). | |
1480 | function invalidateCaches() | |
1481 | { | |
1482 | unset($_SESSION['tags']); | |
1483 | } | |
1484 | ||
44a9d860 SS |
1485 | $LINKSDB=new linkdb(isLoggedIn() || OPEN_SHAARLI); // Read links from database (and filter private links if used it not logged in). |
1486 | if (startswith($_SERVER["QUERY_STRING"],'ws=')) { processWS(); exit; } // Webservices (for jQuery/jQueryUI) | |
ef734b5d SS |
1487 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=LINKS_PER_PAGE; |
1488 | if (startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
1489 | renderPage(); | |
1490 | ?> |