]>
Commit | Line | Data |
---|---|---|
ef734b5d | 1 | <?php |
6d6ea975 | 2 | // Shaarli 0.0.8 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 | ||
7 | // Requires: php 5.2.x | |
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) | |
18 | ||
19 | // ----------------------------------------------------------------------------------------------- | |
20 | // Program config (touch at your own risks !) | |
21 | //error_reporting(E_ALL^E_WARNING); // See all error except warnings. | |
22 | error_reporting(-1); // See all errors (for debugging only) | |
23 | $STARTTIME = microtime(true); // Measure page execution time. | |
24 | ob_start(); | |
25 | // Prevent caching: (yes, it's ugly) | |
26 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
27 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
28 | header("Cache-Control: post-check=0, pre-check=0", false); | |
29 | header("Pragma: no-cache"); | |
6d6ea975 | 30 | define('shaarli_version','0.0.8 beta'); |
ef734b5d SS |
31 | if (!is_dir(DATADIR)) { mkdir(DATADIR,0705); chmod(DATADIR,0705); } |
32 | if (!is_file(DATADIR.'/.htaccess')) { file_put_contents(DATADIR.'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. | |
33 | if (!is_file(CONFIG_FILE)) install(); | |
34 | require CONFIG_FILE; // Read login/password hash into $GLOBALS. | |
35 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. | |
36 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
37 | ini_set('post_max_size', '16M'); | |
38 | ini_set('upload_max_filesize', '16M'); | |
39 | define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in php code. | |
40 | define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in php code. | |
41 | autoLocale(); // Sniff browser language and set date format accordingly. | |
42 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
43 | $LINKSDB=false; | |
44 | ||
45 | // ----------------------------------------------------------------------------------------------- | |
46 | // Log to text file | |
47 | function logm($message) | |
48 | { | |
49 | if (!file_exists(DATADIR.'/log.txt')) {$logFile = fopen(DATADIR.'/log.txt','w'); } | |
50 | else { $logFile = fopen(DATADIR.'/log.txt','a'); } | |
51 | fwrite($logFile,strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"); | |
52 | fclose($logFile); | |
53 | } | |
54 | ||
55 | // ------------------------------------------------------------------------------------------ | |
56 | // Sniff browser language to display dates in the right format automatically. | |
57 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
58 | function autoLocale() | |
59 | { | |
60 | $loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE | |
61 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" | |
62 | { // (It's a bit crude, but it works very well. Prefered language is always presented first.) | |
63 | if (preg_match('/([a-z]{2}(-[a-z]{2})?)/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) $loc=$matches[1]; | |
64 | } | |
65 | setlocale(LC_TIME,$loc); // LC_TIME = Set local for date/time format only. | |
66 | } | |
67 | ||
68 | // ------------------------------------------------------------------------------------------ | |
69 | // Session management | |
70 | define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired. | |
71 | ini_set('session.use_cookies', 1); // Use cookies to store session. | |
72 | ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL) | |
73 | ini_set('session.use_trans_sid', false); // Prevent php to use sessionID in URL if cookies are disabled. | |
74 | session_name('shaarli'); | |
75 | session_start(); | |
76 | ||
77 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
78 | function allIPs() | |
79 | { | |
80 | $ip = $_SERVER["REMOTE_ADDR"]; | |
81 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
82 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
83 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
84 | return $ip; | |
85 | } | |
86 | ||
87 | // Check that user/password is correct. | |
88 | function check_auth($login,$password) | |
89 | { | |
90 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
91 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
92 | { // Login/password is correct. | |
93 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // generate unique random number (different than phpsessionid) | |
94 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. | |
95 | $_SESSION['username']=$login; | |
96 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
97 | logm('Login successful'); | |
98 | return True; | |
99 | } | |
100 | logm('Login failed for user '.$login); | |
101 | return False; | |
102 | } | |
103 | ||
104 | // Returns true if the user is logged in. | |
105 | function isLoggedIn() | |
106 | { | |
107 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
108 | if (empty($_SESSION['uid']) || $_SESSION['ip']!=allIPs() || time()>=$_SESSION['expires_on']) | |
109 | { | |
110 | logout(); | |
111 | return false; | |
112 | } | |
113 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // User accessed a page : Update his/her session expiration date. | |
114 | return true; | |
115 | } | |
116 | ||
117 | // Force logout. | |
118 | function logout() { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);} | |
119 | ||
120 | ||
121 | // ------------------------------------------------------------------------------------------ | |
122 | // Brute force protection system | |
123 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
124 | if (!is_file(IPBANS_FILENAME)) file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"); | |
125 | include IPBANS_FILENAME; | |
126 | // Signal a failed login. Will ban the IP if too many failures: | |
127 | function ban_loginFailed() | |
128 | { | |
129 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
130 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
131 | $gb['FAILURES'][$ip]++; | |
132 | if ($gb['FAILURES'][$ip]>(BAN_AFTER-1)) | |
133 | { | |
134 | $gb['BANS'][$ip]=time()+BAN_DURATION; | |
135 | logm('IP address banned from login'); | |
136 | } | |
137 | $GLOBALS['IPBANS'] = $gb; | |
138 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
139 | } | |
140 | ||
141 | // Signals a successful login. Resets failed login counter. | |
142 | function ban_loginOk() | |
143 | { | |
144 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
145 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
146 | $GLOBALS['IPBANS'] = $gb; | |
147 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
148 | } | |
149 | ||
150 | // Checks if the user CAN login. If 'true', the user can try to login. | |
151 | function ban_canLogin() | |
152 | { | |
153 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
154 | if (isset($gb['BANS'][$ip])) | |
155 | { | |
156 | // User is banned. Check if the ban has expired: | |
157 | if ($gb['BANS'][$ip]<=time()) | |
158 | { // Ban expired, user can try to login again. | |
159 | logm('Ban lifted.'); | |
160 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
161 | file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
162 | return true; // Ban has expired, user can login. | |
163 | } | |
164 | return false; // User is banned. | |
165 | } | |
166 | return true; // User is not banned. | |
167 | } | |
168 | ||
169 | // ------------------------------------------------------------------------------------------ | |
170 | // Process login form: Check if login/password is correct. | |
171 | if (isset($_POST['login'])) | |
172 | { | |
173 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
174 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
175 | { // Login/password is ok. | |
176 | ban_loginOk(); | |
177 | // Optional redirect after login: | |
178 | if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; } | |
179 | if (isset($_POST['returnurl'])) { header('Location: '.$_POST['returnurl']); exit; } | |
180 | header('Location: ?'); exit; | |
181 | } | |
182 | else | |
183 | { | |
184 | ban_loginFailed(); | |
185 | echo '<script language="JavaScript">alert("Wrong login/password.");document.location=\'?do=login\';</script>'; // Redirect to login screen. | |
186 | exit; | |
187 | } | |
188 | } | |
189 | ||
190 | // ------------------------------------------------------------------------------------------ | |
191 | // Misc utility functions: | |
192 | ||
193 | // Returns the server URL (including port and http/https), without path. | |
194 | // eg. "http://myserver.com:8080" | |
195 | // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL. | |
196 | function serverUrl() | |
197 | { | |
198 | $serverport = ($_SERVER["SERVER_PORT"]!='80' ? ':'.$_SERVER["SERVER_PORT"] : ''); | |
199 | return 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.$_SERVER["SERVER_NAME"].$serverport; | |
200 | } | |
201 | ||
202 | // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes. | |
203 | function return_bytes($val) | |
204 | { | |
205 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
206 | switch($last) | |
207 | { | |
208 | case 'g': $val *= 1024; | |
209 | case 'm': $val *= 1024; | |
210 | case 'k': $val *= 1024; | |
211 | } | |
212 | return $val; | |
213 | } | |
214 | ||
215 | // Try to determine max file size for uploads (POST). | |
216 | // Returns an integer (in bytes) | |
217 | function getMaxFileSize() | |
218 | { | |
219 | $size1 = return_bytes(ini_get('post_max_size')); | |
220 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
221 | // Return the smaller of two: | |
222 | $maxsize = min($size1,$size2); | |
223 | // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000) | |
224 | return $maxsize; | |
225 | } | |
226 | ||
227 | // Tells if a string start with a substring or not. | |
228 | function startsWith($haystack,$needle,$case=true) | |
229 | { | |
230 | if($case){return (strcmp(substr($haystack, 0, strlen($needle)),$needle)===0);} | |
231 | return (strcasecmp(substr($haystack, 0, strlen($needle)),$needle)===0); | |
232 | } | |
233 | ||
234 | // Tells if a string ends with a substring or not. | |
235 | function endsWith($haystack,$needle,$case=true) | |
236 | { | |
237 | if($case){return (strcmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);} | |
238 | return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0); | |
239 | } | |
240 | ||
241 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) | |
242 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
243 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
244 | function linkdate2timestamp($linkdate) | |
245 | { | |
246 | $Y=$M=$D=$h=$m=$s=0; | |
247 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
248 | return mktime($h,$m,$s,$M,$D,$Y); | |
249 | } | |
250 | ||
251 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
252 | (used to build the pubDate attribute in RSS feed.) */ | |
253 | function linkdate2rfc822($linkdate) | |
254 | { | |
255 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
256 | } | |
257 | ||
258 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format. | |
259 | (used to display link date on screen) | |
260 | The date format is automatically chose according to locale/languages sniffed from browser headers (see autoLocale()). */ | |
261 | function linkdate2locale($linkdate) | |
262 | { | |
263 | return utf8_encode(strftime('%c',linkdate2timestamp($linkdate))); // %c is for automatic date format according to locale. | |
264 | // Note that if you use a local which is not installed on your webserver, | |
265 | // the date will not be displayed in the chosen locale, but probably in US notation. | |
266 | } | |
267 | ||
268 | // Parse HTTP response headers and return an associative array. | |
269 | function http_parse_headers( $headers ) | |
270 | { | |
271 | $res=array(); | |
272 | foreach($headers as $header) | |
273 | { | |
274 | $i = strpos($header,': '); | |
275 | if ($i) | |
276 | { | |
277 | $key=substr($header,0,$i); | |
278 | $value=substr($header,$i+2,strlen($header)-$i-2); | |
279 | $res[$key]=$value; | |
280 | } | |
281 | } | |
282 | return $res; | |
283 | } | |
284 | ||
285 | /* GET an URL. | |
286 | Input: $url : url to get (http://...) | |
287 | $timeout : Network timeout (will wait this many seconds for an anwser before giving up). | |
288 | Output: An array. [0] = HTTP status message (eg. "HTTP/1.1 200 OK") | |
289 | [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type']) | |
290 | [2] = data | |
291 | Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/'); | |
292 | if (strpos($httpstatus,'200 OK')) | |
293 | echo 'Data type: '.htmlspecialchars($headers['Content-Type']); | |
294 | else | |
295 | echo 'There was an error: '.htmlspecialchars($httpstatus) | |
296 | */ | |
297 | function getHTTP($url,$timeout=30) | |
298 | { | |
299 | //FIXME: trap error correctly (unresolved host, unsupported protocol, etc.) | |
300 | $options = array('http'=>array('method'=>'GET','timeout' => $timeout)); // Force network timeout | |
301 | $context = stream_context_create($options); | |
302 | $data=file_get_contents($url,false,$context,-1, 2000000); // We download at most 2 Mb from source. | |
303 | if (!$data) { $lasterror=error_get_last(); return array($lasterror['message'],array(),''); } | |
304 | $httpStatus=$http_response_header[0]; // eg. "HTTP/1.1 200 OK" | |
305 | $responseHeaders=http_parse_headers($http_response_header); | |
306 | return array($httpStatus,$responseHeaders,$data); | |
307 | } | |
308 | ||
309 | // Extract title from an HTML document. | |
310 | // (Returns an empty string if not found.) | |
311 | function html_extract_title($html) | |
312 | { | |
313 | return preg_match('!<title>(.*?)</title>!i', $html, $matches) ? $matches[1] : ''; | |
314 | } | |
315 | ||
316 | // ------------------------------------------------------------------------------------------ | |
317 | // Token management for XSRF protection | |
318 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
319 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
320 | ||
321 | // Returns a token. | |
322 | function getToken() | |
323 | { | |
324 | $rnd = sha1(uniqid('',true).'_'.mt_rand()); // We generate a random string. | |
325 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. | |
326 | return $rnd; | |
327 | } | |
328 | ||
329 | // Tells if a token is ok. Using this function will destroy the token. | |
330 | // true=token is ok. | |
331 | function tokenOk($token) | |
332 | { | |
333 | if (isset($_SESSION['tokens'][$token])) | |
334 | { | |
335 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
336 | return true; // Token is ok. | |
337 | } | |
338 | return false; // Wrong token, or already used. | |
339 | } | |
340 | ||
341 | // ------------------------------------------------------------------------------------------ | |
342 | /* Data storage for links. | |
343 | This object behaves like an associative array. | |
344 | Example: | |
345 | $mylinks = new linkdb(); | |
346 | echo $mylinks['20110826_161819']['title']; | |
347 | foreach($mylinks as $link) | |
348 | echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description']; | |
349 | ||
350 | We implement 3 interfaces: | |
351 | - ArrayAccess so that this object behaves like an associative array. | |
352 | - Iterator so that this object can be used in foreach() loops. | |
353 | - Countable interface so that we can do a count() on this object. | |
354 | */ | |
355 | class linkdb implements Iterator, Countable, ArrayAccess | |
356 | ||
357 | { | |
358 | private $links; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...) | |
359 | private $urls; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate) | |
360 | private $keys; // List of linkdate keys (for the Iterator interface implementation) | |
361 | private $position; // Position in the $this->keys array. (for the Iterator interface implementation.) | |
362 | private $loggedin; // Is the used logged in ? (used to filter private links) | |
363 | ||
364 | // Constructor: | |
365 | function __construct($isLoggedIn) | |
366 | // Input : $isLoggedIn : is the used logged in ? | |
367 | { | |
368 | $this->loggedin = $isLoggedIn; | |
369 | $this->checkdb(); // Make sure data file exists. | |
370 | $this->readdb(); // Then read it. | |
371 | } | |
372 | ||
373 | // ---- Countable interface implementation | |
374 | public function count() { return count($this->links); } | |
375 | ||
376 | // ---- ArrayAccess interface implementation | |
377 | public function offsetSet($offset, $value) | |
378 | { | |
379 | if (!$this->loggedin) die('You are not authorized to add a link.'); | |
380 | if (empty($value['linkdate']) || empty($value['url'])) die('Internal Error: A link should always have a linkdate and url.'); | |
381 | if (empty($offset)) die('You must specify a key.'); | |
382 | $this->links[$offset] = $value; | |
383 | $this->urls[$value['url']]=$offset; | |
384 | } | |
385 | public function offsetExists($offset) { return array_key_exists($offset,$this->links); } | |
386 | public function offsetUnset($offset) | |
387 | { | |
388 | if (!$this->loggedin) die('You are not authorized to delete a link.'); | |
389 | $url = $this->links[$offset]['url']; unset($this->urls[$url]); | |
390 | unset($this->links[$offset]); | |
391 | } | |
392 | public function offsetGet($offset) { return isset($this->links[$offset]) ? $this->links[$offset] : null; } | |
393 | ||
394 | // ---- Iterator interface implementation | |
395 | function rewind() { $this->keys=array_keys($this->links); rsort($this->keys); $this->position=0; } // Start over for iteration, ordered by date (latest first). | |
396 | function key() { return $this->keys[$this->position]; } // current key | |
397 | function current() { return $this->links[$this->keys[$this->position]]; } // current value | |
398 | function next() { ++$this->position; } // go to next item | |
399 | function valid() { return isset($this->keys[$this->position]); } // Check if current position is valid. | |
400 | ||
401 | // ---- Misc methods | |
402 | private function checkdb() // Check if db directory and file exists. | |
403 | { | |
404 | if (!file_exists(DATASTORE)) // Create a dummy database for example. | |
405 | { | |
406 | $this->links = array(); | |
407 | $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'); | |
408 | $this->links[$link['linkdate']] = $link; | |
409 | $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'); | |
410 | $this->links[$link['linkdate']] = $link; | |
411 | file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk | |
412 | } | |
413 | } | |
414 | ||
415 | // Read database from disk to memory | |
416 | private function readdb() | |
417 | { | |
418 | // Read data | |
419 | $this->links=(file_exists(DATASTORE) ? unserialize(gzinflate(base64_decode(substr(file_get_contents(DATASTORE),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() ); | |
420 | ||
421 | // If user is not logged in, filter private links. | |
422 | if (!$this->loggedin) | |
423 | { | |
424 | $toremove=array(); | |
425 | foreach($this->links as $link) { if ($link['private']!=0) $toremove[]=$link['linkdate']; } | |
426 | foreach($toremove as $linkdate) { unset($this->links[$linkdate]); } | |
427 | } | |
428 | ||
429 | // Keep the list of the mapping URLs-->linkdate up-to-date. | |
430 | $this->urls=array(); | |
431 | foreach($this->links as $link) { $this->urls[$link['url']]=$link['linkdate']; } | |
432 | } | |
433 | ||
434 | // Save database from memory to disk. | |
435 | public function savedb() | |
436 | { | |
437 | if (!$this->loggedin) die('You are not authorized to change the database.'); | |
438 | file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); | |
439 | } | |
440 | ||
441 | // Returns the link for a given URL (if it exists). false it does not exist. | |
442 | public function getLinkFromUrl($url) | |
443 | { | |
444 | if (isset($this->urls[$url])) return $this->links[$this->urls[$url]]; | |
445 | return false; | |
446 | } | |
447 | ||
448 | // Case insentitive search among links (in url, title and description). Returns filtered list of links. | |
449 | // eg. print_r($mydb->filterTags('hollandais')); | |
450 | public function filterFulltext($searchterms) | |
451 | { | |
452 | // FIXME: explode(' ',$searchterms) and perform a AND search. | |
453 | // FIXME: accept double-quotes to search for a string "as is" ? | |
454 | $filtered=array(); | |
455 | $s = strtolower($searchterms); | |
456 | foreach($this->links as $l) | |
457 | { | |
458 | $found=strpos(strtolower($l['title']),$s) || strpos(strtolower($l['description']),$s) || strpos(strtolower($l['url']),$s) || strpos(strtolower($l['tags']),$s); | |
459 | if ($found) $filtered[$l['linkdate']] = $l; | |
460 | } | |
461 | krsort($filtered); | |
462 | return $filtered; | |
463 | } | |
464 | ||
465 | // Filter by tag. | |
466 | // You can specify one or more tags (tags can be separated by space or comma). | |
467 | // eg. print_r($mydb->filterTags('linux programming')); | |
468 | public function filterTags($tags) | |
469 | { | |
470 | $t = str_replace(',',' ',strtolower($tags)); | |
471 | $searchtags=explode(' ',$t); | |
472 | $filtered=array(); | |
473 | foreach($this->links as $l) | |
474 | { | |
475 | $linktags = explode(' ',strtolower($l['tags'])); | |
476 | if (count(array_intersect($linktags,$searchtags)) == count($searchtags)) | |
477 | $filtered[$l['linkdate']] = $l; | |
478 | } | |
479 | krsort($filtered); | |
480 | return $filtered; | |
481 | ||
482 | } | |
483 | } | |
484 | ||
485 | // ------------------------------------------------------------------------------------------ | |
486 | // Ouput the last 50 links in RSS 2.0 format. | |
487 | function showRSS() | |
488 | { | |
489 | global $LINKSDB; | |
490 | header('Content-Type: application/xhtml+xml; charset=utf-8'); | |
491 | $pageaddr=htmlspecialchars(serverUrl().$_SERVER["SCRIPT_NAME"]); | |
492 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; | |
493 | echo '<channel><title>Shared links on '.$pageaddr.'</title><link>'.$pageaddr.'</link>'; | |
494 | echo '<description>Shared links</description><language></language><copyright>'.$pageaddr.'</copyright>'."\n\n"; | |
495 | $i=0; | |
496 | $keys=array(); foreach($LINKSDB as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
497 | while ($i<50 && $i<count($keys)) | |
498 | { | |
499 | $link = $LINKSDB[$keys[$i]]; | |
500 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
6d6ea975 | 501 | echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.htmlspecialchars($link['url']).'</guid><link>'.htmlspecialchars($link['url']).'</link><pubDate>'.htmlspecialchars($rfc822date).'</pubDate>'; |
ef734b5d SS |
502 | echo '<description><![CDATA['.htmlspecialchars($link['description']).']]></description></item>'."\n"; |
503 | $i++; | |
504 | } | |
505 | echo '</channel></rss>'; | |
506 | exit; | |
507 | } | |
508 | ||
509 | // ------------------------------------------------------------------------------------------ | |
510 | // Render HTML page: | |
511 | function renderPage() | |
512 | { | |
513 | global $STARTTIME; | |
514 | global $LINKSDB; | |
515 | ||
516 | // Well... rendering the page would be 100x better with the excellent Smarty, but I don't want to tie this minimalist project to 100+ files. | |
517 | // So I use a custom templating system. | |
518 | ||
519 | // -------- Display login form. | |
520 | if (startswith($_SERVER["QUERY_STRING"],'do=login')) | |
521 | { | |
522 | if (!ban_canLogin()) | |
523 | { | |
524 | $loginform='<div id="headerform">You have been banned from login after too many failed attempts. Try later.</div>'; | |
525 | $data = array('pageheader'=>$loginform,'body'=>'','onload'=>''); | |
526 | templatePage($data); | |
527 | exit; | |
528 | } | |
529 | $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : ''); | |
530 | $loginform='<div id="headerform"><form method="post" name="loginform">Login: <input type="text" name="login"> Password : <input type="password" name="password"> <input type="submit" value="Login" class="bigbutton"><input type="hidden" name="token" value="'.getToken().'">'.$returnurl_html.'</form></div>'; | |
531 | $onload = 'onload="document.loginform.login.focus();"'; | |
532 | $data = array('pageheader'=>$loginform,'body'=>'','onload'=>$onload); | |
533 | templatePage($data); | |
534 | exit; | |
535 | } | |
536 | ||
537 | // -------- User wants to logout. | |
538 | if (startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
539 | { | |
540 | logout(); | |
541 | header('Location: ?'); | |
542 | exit; | |
543 | } | |
544 | ||
545 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
546 | if (isset($_GET['addtag'])) | |
547 | { | |
548 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
549 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
550 | $params['searchtags'] = (empty($params['searchtags']) ? trim($_GET['addtag']) : trim($params['searchtags'].' '.$_GET['addtag'])); | |
551 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
552 | header('Location: ?'.http_build_query($params)); | |
553 | exit; | |
554 | } | |
555 | ||
556 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
557 | if (isset($_GET['removetag'])) | |
558 | { | |
559 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. | |
560 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
561 | if (isset($params['searchtags'])) | |
562 | { | |
563 | $tags = explode(' ',$params['searchtags']); | |
564 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
565 | if (count($tags)==0) unset($params['searchtags']); else $params['searchtags'] = implode(' ',$tags); | |
566 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
567 | } | |
568 | header('Location: ?'.http_build_query($params)); | |
569 | exit; | |
570 | } | |
571 | ||
572 | // -------- User wants to change the number of links per page (linksperpage=...) | |
573 | if (isset($_GET['linksperpage'])) | |
574 | { | |
575 | if (is_numeric($_GET['linksperpage'])) { $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); } | |
576 | header('Location: '.$_SERVER['HTTP_REFERER']); | |
577 | exit; | |
578 | } | |
579 | ||
580 | ||
581 | // -------- Handle other actions allowed for non-logged in users: | |
582 | if (!isLoggedIn()) | |
583 | { | |
584 | // User tries to post new link but is not loggedin: | |
585 | // Show login screen, then redirect to ?post=... | |
586 | if (isset($_GET['post'])) | |
587 | { | |
588 | header('Location: ?do=login&post='.urlencode($_GET['post']).(isset($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link. | |
589 | exit; | |
590 | } | |
591 | ||
592 | // Show search form and display list of links. | |
593 | $searchform=<<<HTML | |
594 | <div id="headerform" style="width:100%; white-space:nowrap;";> | |
595 | <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> | |
596 | <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form> | |
597 | </div> | |
598 | HTML; | |
599 | $onload = 'document.searchform.searchterm.focus();'; | |
600 | $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload); | |
601 | templatePage($data); | |
602 | exit; // Never remove this one ! | |
603 | } | |
604 | ||
605 | // -------- All other functions are reserved for the registered user: | |
606 | ||
607 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
608 | if (startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
609 | { | |
610 | $pageabsaddr=serverUrl().$_SERVER["SCRIPT_NAME"]; // Why doesn't php have a built-in function for that ? | |
611 | // The javascript code for the bookmarklet: | |
612 | $toolbar= <<<HTML | |
613 | <div id="headerform"> | |
614 | <a href="?do=import"><b>Import</b></a> - <small>Import Netscape html bookmarks (as exported from Firefox, Chrome, Opera, delicious...)</small><br> | |
615 | <a href="?do=export"><b>Export</b></a> - <small>Export Netscape html bookmarks (which can be imported in Firefox, Chrome, Opera, delicious...)</small><br> | |
616 | <a class="smallbutton" style="color:black;" onclick="alert('Drag this link to your bookmarks toolbar, or right-click it and choose Bookmark This Link...');return false;" href="javascript:javascript:(function(){var%20url%20=%20location.href;var%20title%20=%20document.title%20||%20url;window.open('{$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> - <small>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.</small> | |
617 | </div> | |
618 | HTML; | |
619 | $data = array('pageheader'=>$toolbar,'body'=>'','onload'=>''); | |
620 | templatePage($data); | |
621 | exit; | |
622 | } | |
623 | ||
624 | // -------- User wants to add a link without using the bookmarklet: show form. | |
625 | if (startswith($_SERVER["QUERY_STRING"],'do=addlink')) | |
626 | { | |
627 | $onload = 'document.addform.post.focus();'; | |
628 | $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>'; | |
629 | $data = array('pageheader'=>$addform,'body'=>'','onload'=>$onload); | |
630 | templatePage($data); | |
631 | exit; | |
632 | } | |
633 | ||
634 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
635 | if (isset($_POST['save_edit'])) | |
636 | { | |
637 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! | |
638 | $linkdate=$_POST['lf_linkdate']; | |
639 | $link = array('title'=>trim($_POST['lf_title']),'url'=>trim($_POST['lf_url']),'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
640 | 'linkdate'=>$linkdate,'tags'=>trim($_POST['lf_tags'])); | |
641 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. | |
642 | $LINKSDB[$linkdate] = $link; | |
643 | $LINKSDB->savedb(); // save to disk | |
644 | ||
645 | // If we are called from the bookmarklet, we must close the popup: | |
646 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
647 | header('Location: '.$_POST['returnurl']); // After saving the link, redirect to the page the user was on. | |
648 | exit; | |
649 | } | |
650 | ||
651 | // -------- User clicked the "Cancel" button when editing a link. | |
652 | if (isset($_POST['cancel_edit'])) | |
653 | { | |
654 | // If we are called from the bookmarklet, we must close the popup; | |
655 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
656 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); | |
657 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. | |
658 | exit; | |
659 | } | |
660 | ||
661 | // -------- User clicked the "Delete" button when editing a link : Delete link from database. | |
662 | if (isset($_POST['delete_link'])) | |
663 | { | |
664 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
665 | // We do not need to ask for confirmation: | |
666 | // - confirmation is handled by javascript | |
667 | // - we are protected from XSRF by the token. | |
668 | $linkdate=$_POST['lf_linkdate']; | |
669 | unset($LINKSDB[$linkdate]); | |
670 | $LINKSDB->savedb(); // save to disk | |
671 | // If we are called from the bookmarklet, we must close the popup: | |
672 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; } | |
673 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); | |
674 | header('Location: '.$returnurl); // After deleting the link, redirect to the page the user was on. | |
675 | exit; | |
676 | } | |
677 | ||
678 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
679 | if (isset($_GET['edit_link'])) | |
680 | { | |
681 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
682 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
683 | list($editform,$onload)=templateEditForm($link); | |
684 | $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload); | |
685 | templatePage($data); | |
686 | exit; | |
687 | } | |
688 | ||
689 | // -------- User want to post a new link: Display link edit form. | |
690 | if (isset($_GET['post'])) | |
691 | { | |
692 | $url=$_GET['post']; | |
693 | ||
694 | // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...) | |
695 | $i=strpos($url,'&utm_source='); if ($i) $url=substr($url,0,$i); | |
696 | $i=strpos($url,'?utm_source='); if ($i) $url=substr($url,0,$i); | |
697 | ||
698 | $link_is_new = false; | |
699 | $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link) | |
700 | if (!$link) | |
701 | { | |
702 | $link_is_new = true; // This is a new link | |
703 | $linkdate = strval(date('Ymd_His')); | |
704 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). | |
705 | $description=''; $tags=''; $private=0; | |
706 | if (parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; | |
707 | // 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.) | |
708 | if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') | |
709 | { | |
710 | list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. | |
711 | // FIXME: Decode charset according to charset specified in either 1) HTTP response headers or 2) <head> in html | |
712 | if (strpos($status,'200 OK')) $title=html_extract_title($data); | |
713 | } | |
714 | $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>0); | |
715 | } | |
716 | list($editform,$onload)=templateEditForm($link,$link_is_new); | |
717 | $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload); | |
718 | templatePage($data); | |
719 | exit; | |
720 | } | |
721 | ||
722 | // -------- Export as Netscape Bookmarks HTML file. | |
723 | if (startswith($_SERVER["QUERY_STRING"],'do=export')) | |
724 | { | |
725 | header('Content-Type: text/html; charset=utf-8'); | |
726 | header('Content-disposition: attachment; filename=bookmarks_'.strval(date('Ymd_His')).'.html'); | |
727 | echo <<<HTML | |
728 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
729 | <!-- This is an automatically generated file. | |
730 | It will be read and overwritten. | |
731 | DO NOT EDIT! --> | |
732 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
733 | <TITLE>Bookmarks</TITLE> | |
734 | <H1>Bookmarks</H1> | |
735 | HTML; | |
736 | foreach($LINKSDB as $link) | |
737 | { | |
738 | echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; | |
739 | if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"'; | |
740 | echo '>'.htmlspecialchars($link['title'])."</A>\n"; | |
741 | if ($link['description']!='') echo '<DD>'.htmlspecialchars($link['description'])."\n"; | |
742 | } | |
743 | echo '<!-- Shaarli bookmarks export on '.date('Y/m/d H:i:s')."-->\n"; | |
744 | exit; | |
745 | } | |
746 | ||
747 | // -------- User is uploading a file for import | |
748 | if (startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
749 | { | |
750 | // If file is too big, some form field may be missing. | |
751 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
752 | { | |
753 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
754 | echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>'; | |
755 | exit; | |
756 | } | |
757 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
758 | importFile(); | |
759 | exit; | |
760 | } | |
761 | ||
762 | // -------- Show upload/import dialog: | |
763 | if (startswith($_SERVER["QUERY_STRING"],'do=import')) | |
764 | { | |
765 | $token = getToken(); | |
766 | $maxfilesize=getMaxFileSize(); | |
767 | $onload = 'onload="document.uploadform.filetoupload.focus();"'; | |
768 | $uploadform=<<<HTML | |
769 | <div id="headerform"> | |
770 | Import Netscape html bookmarks (as exported from Firefox/Chrome/Opera/delicious/diigo...) (Max: {$maxfilesize} bytes). | |
771 | <form method="POST" action="?do=upload" enctype="multipart/form-data" name="uploadform"> | |
772 | <input type="hidden" name="token" value="{$token}"> | |
773 | <input type="file" name="filetoupload" size="80"> | |
774 | <input type="hidden" name="MAX_FILE_SIZE" value="{$maxfilesize}"> | |
775 | <input type="submit" name="import_file" value="Import" class="bigbutton"> | |
776 | </form> | |
777 | </div> | |
778 | HTML; | |
779 | $data = array('pageheader'=>$uploadform,'body'=>'','onload'=>$onload ); | |
780 | templatePage($data); | |
781 | exit; | |
782 | } | |
783 | ||
784 | // -------- Otherwise, simply display search form and links: | |
785 | $searchform=<<<HTML | |
786 | <div id="headerform" style="width:100%; white-space:nowrap;";> | |
787 | <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> | |
788 | <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form> | |
789 | </div> | |
790 | HTML; | |
791 | $onload = 'document.searchform.searchterm.focus();'; | |
792 | $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload); | |
793 | templatePage($data); | |
794 | exit; | |
795 | } | |
796 | ||
797 | // ----------------------------------------------------------------------------------------------- | |
798 | // Process the import file form. | |
799 | function importFile() | |
800 | { | |
801 | global $LINKSDB; | |
802 | $filename=$_FILES['filetoupload']['name']; | |
803 | $filesize=$_FILES['filetoupload']['size']; | |
804 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
805 | ||
806 | // Sniff file type: | |
807 | $type='unknown'; | |
808 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
809 | ||
810 | // Then import the bookmarks. | |
811 | if ($type=='netscape') | |
812 | { | |
813 | // This is a standard Netscape-style bookmark file. | |
814 | // This format is supported by all browsers (except IE, of course), also delicious, diigo and others. | |
815 | // I didn't want to use DOM... anyway, this is FAST (less than 1 second to import 7200 links (2.1 Mb html file)). | |
816 | $before=count($LINKSDB); | |
817 | foreach(explode('<DT>',$data) as $html) // explode is very fast | |
818 | { | |
819 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
820 | $d = explode('<DD>',$html); | |
821 | if (startswith($d[0],'<A ')) | |
822 | { | |
823 | $link['description'] = (isset($d[1]) ? trim($d[1]) : ''); // Get description (optional) | |
824 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
825 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
826 | foreach($matches as $m) | |
827 | { | |
828 | $attr=$m[1]; $value=$m[2]; | |
829 | if ($attr=='HREF') $link['url']=$value; | |
830 | elseif ($attr=='ADD_DATE') $link['linkdate']=date('Ymd_His',intval($value)); | |
831 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); | |
832 | elseif ($attr=='TAGS') $link['tags']=str_replace(',',' ',$value); | |
833 | } | |
834 | if ($link['linkdate']!='' && $link['url']!='') $LINKSDB[$link['linkdate']] = $link; | |
835 | } | |
836 | } | |
837 | $import_count = count($LINKSDB)-$before; | |
838 | $LINKSDB->savedb(); | |
839 | echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) was successfully imported: '.$import_count.' new links.");document.location=\'?\';</script>'; | |
840 | } | |
841 | else | |
842 | { | |
843 | echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; | |
844 | } | |
845 | } | |
846 | ||
847 | // ----------------------------------------------------------------------------------------------- | |
848 | /* Template for the edit link form | |
849 | Input: $link : link to edit (assocative array item as returned by the LINKDB class) | |
850 | Output: An array : (string) : The html code of the edit link form. | |
851 | (string) : The proper onload to use in body. | |
852 | Example: list($html,$onload)=templateEditForm($mylinkdb['20110805_124532']); | |
853 | echo $html; | |
854 | */ | |
855 | function templateEditForm($link,$link_is_new=false) | |
856 | { | |
857 | $url=htmlspecialchars($link['url']); | |
858 | $title=htmlspecialchars($link['title']); | |
859 | $tags=htmlspecialchars($link['tags']); | |
860 | $description=htmlspecialchars($link['description']); | |
861 | $private = ($link['private']==0 ? '' : 'checked="yes"'); | |
862 | ||
863 | // Automatically focus on empty fields: | |
864 | $onload='onload="document.linkform.lf_tags.focus();"'; | |
865 | if ($description=='') $onload='onload="document.linkform.lf_description.focus();"'; | |
866 | if ($title=='') $onload='onload="document.linkform.lf_title.focus();"'; | |
867 | ||
868 | // Do not show "Delete" button if this is a new link. | |
869 | $delete_button = '<input type="submit" value="Delete" name="delete_link" class="bigbutton" style="margin-left:180px;" onClick="return confirmDeleteLink();">'; | |
870 | if ($link_is_new) $delete_button=''; | |
871 | ||
872 | $token=getToken(); // XSRF protection. | |
873 | $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : ''); | |
874 | $editlinkform=<<<HTML | |
875 | <div id="editlinkform"> | |
876 | <form method="post" name="linkform"> | |
877 | <input type="hidden" name="lf_linkdate" value="{$link['linkdate']}"> | |
878 | <i>URL</i><br><input type="text" name="lf_url" value="{$url}" style="width:100%"><br> | |
879 | <i>Title</i><br><input type="text" name="lf_title" value="{$title}" style="width:100%"><br> | |
880 | <i>Description</i><br><textarea name="lf_description" rows="4" cols="25" style="width:100%">{$description}</textarea><br> | |
881 | <i>Tags</i><br><input type="text" name="lf_tags" value="{$tags}" style="width:100%"><br> | |
882 | <input type="checkbox" {$private} style="margin:7 0 10 0;" name="lf_private"> <i>Private</i><br> | |
883 | <input type="submit" value="Save" name="save_edit" class="bigbutton" style="margin-left:40px;"> | |
884 | <input type="submit" value="Cancel" name="cancel_edit" class="bigbutton" style="margin-left:40px;"> | |
885 | {$delete_button} | |
886 | <input type="hidden" name="token" value="{$token}"> | |
887 | {$returnurl_html} | |
888 | </form> | |
889 | </div> | |
890 | HTML; | |
891 | return array($editlinkform,$onload); | |
892 | } | |
893 | ||
894 | ||
895 | // ----------------------------------------------------------------------------------------------- | |
896 | // Template for the list of links. | |
897 | // Returns html code to show the list of link according to parameters passed in URL (search terms, page...) | |
898 | function templateLinkList() | |
899 | { | |
900 | global $LINKSDB; | |
901 | ||
902 | // Search according to entered search terms: | |
903 | $linksToDisplay=array(); | |
904 | $searched=''; | |
905 | if (!empty($_GET['searchterm'])) // Fulltext search | |
906 | { | |
907 | $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
908 | $searched=' <b>'.count($linksToDisplay).' results for <i>'.htmlspecialchars($_GET['searchterm']).'</i></b>:'; | |
909 | } | |
910 | elseif (!empty($_GET['searchtags'])) // Search by tag | |
911 | { | |
912 | $linksToDisplay = $LINKSDB->filterTags($_GET['searchtags']); | |
913 | $tagshtml=''; foreach(explode(' ',$_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> '; | |
914 | $searched=' <b>'.count($linksToDisplay).' results for tags '.$tagshtml.':</b>'; | |
915 | } | |
916 | else | |
917 | $linksToDisplay = $LINKSDB; // otherwise, display without filtering. | |
918 | ||
919 | $linklist=''; | |
920 | $actions=''; | |
921 | ||
922 | // Handle paging. | |
923 | /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ??? | |
924 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " | |
925 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
926 | */ | |
927 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks php. | |
928 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
929 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
930 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
931 | $page = ( $page<1 ? 1 : $page ); | |
932 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
933 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
934 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
935 | while ($i<$end && $i<count($keys)) | |
936 | { | |
937 | $link = $linksToDisplay[$keys[$i]]; | |
938 | $description=$link['description']; | |
939 | $title=$link['title']; | |
940 | $classprivate = ($link['private']==0 ? '' : 'class="private"'); | |
941 | 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>'; | |
942 | $tags=''; | |
943 | if ($link['tags']!='') foreach(explode(' ',$link['tags']) as $tag) { $tags.='<span class="linktag" title="Add tag"><a href="?addtag='.htmlspecialchars($tag).'">'.htmlspecialchars($tag).'</a></span> '; } | |
944 | $linklist.='<li '.$classprivate.'><span class="linktitle"><a href="'.htmlspecialchars($link['url']).'">'.htmlspecialchars($title).'</a></span>'.$actions.'<br>'; | |
945 | if ($description!='') $linklist.='<div class="linkdescription">'.str_replace("\n",'<br>',htmlspecialchars($description)).'</div><br>'; | |
946 | $linklist.='<span class="linkdate">'.htmlspecialchars(linkdate2locale($link['linkdate'])).' - </span><span class="linkurl">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</li>\n"; | |
947 | $i++; | |
948 | } | |
949 | ||
950 | // Show paging. | |
951 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
952 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
953 | $paging=''; | |
954 | if ($i!=count($keys)) $paging.='<a href="?page='.($page+1).$searchterm.$searchtags.'">◄Older</a>'; | |
955 | $paging.= '<span style="color:#fff; padding:0 20 0 20;">page '.$page.' / '.$pagecount.'</span>'; | |
956 | if ($page>1) $paging.='<a href="?page='.($page-1).$searchterm.$searchtags.'">Newer►</a>'; | |
957 | $linksperpage = <<<HTML | |
958 | <div style="float:right; padding-right:5px;"> | |
959 | Links per page: <a href="?linksperpage=20">20</a> <a href="?linksperpage=50">50</a> <a href="?linksperpage=100">100</a> | |
960 | <form method="GET" style="display:inline;"><input type="text" name="linksperpage" size="2" style="height:15px;"></form></div> | |
961 | HTML; | |
962 | $paging = '<div class="paging">'.$linksperpage.$paging.'</div>'; | |
963 | $linklist='<div id="linklist">'.$paging.$searched.'<ul>'.$linklist.'</ul>'.$paging.'</div>'; | |
964 | return $linklist; | |
965 | } | |
966 | ||
967 | // ----------------------------------------------------------------------------------------------- | |
968 | // Template for the whole page. | |
969 | /* Input: $data (associative array). | |
970 | Keys: 'body' : body of HTML document | |
971 | 'pageheader' : html code to show in page header (top of page) | |
972 | 'onload' : optional onload javascript for the <body> | |
973 | */ | |
974 | function templatePage($data) | |
975 | { | |
976 | global $STARTTIME; | |
977 | global $LINKSDB; | |
978 | $shaarli_version = shaarli_version; | |
979 | $linkcount = count($LINKSDB); | |
980 | $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>'); | |
981 | foreach(array('pageheader','body','onload') as $k) // make sure all required fields exist (put an empty string if not). | |
982 | { | |
983 | if (!array_key_exists($k,$data)) $data[$k]=''; | |
984 | } | |
985 | $feedurl=htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME'].'?do=rss'); | |
986 | echo <<<HTML | |
987 | <html> | |
988 | <head> | |
989 | <title>Shaarli - Let's shaare your links...</title> | |
990 | <link rel="alternate" type="application/rss+xml" href="{$feedurl}"> | |
991 | <style type="text/css"> | |
992 | <!-- | |
993 | /* CSS Reset from Yahoo to cope with browsers CSS inconsistencies. */ | |
994 | /* | |
995 | Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html | |
996 | version: 2.8.2r1 | |
997 | */ | |
998 | html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var,optgroup{font-style:inherit;font-weight:inherit;}del,ins{text-decoration:none;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:baseline;}sub{vertical-align:baseline;}legend{color:#000;}input,button,textarea,select,optgroup,option{font-family:inherit;font-size:inherit;font-style:inherit;font-weight:inherit;}input,button,textarea,select{*font-size:100%;} | |
999 | ||
1000 | body { font-family: "Trebuchet MS",Verdana,Arial,Helvetica,sans-serif; font-size:10pt; background-color: #ffffff; } | |
1001 | input { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #aaaaaa; -webkit-box-shadow: inset 2px 2px 3px #aaaaaa; box-shadow: inset 2px 2px 3px #aaaaaa; } | |
1002 | textarea { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #B2B2C4; -webkit-box-shadow: inset 2px 2px 3px #B2B2C4; box-shadow: inset 2px 2px 3px #B2B2C4; } | |
1003 | /* I don't give a shit about IE. He can't understand selectors such as input[type='submit']. */ | |
1004 | ||
1005 | .bigbutton {border-style:outset;border-width:2px;padding:3px 6px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;} | |
1006 | .smallbutton {border-style:outset;border-width:2px;padding:0px 4px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;} | |
1007 | #pageheader | |
1008 | { | |
1009 | color:#eee; | |
1010 | border-bottom: 1px solid #aaa; | |
1011 | background-color: #6A6A6A; | |
1012 | background-image: -webkit-gradient(linear, left top, left bottom, from(#6A6A6A), to(#303030)); /* Saf4+, Chrome */ | |
1013 | background-image: -webkit-linear-gradient(top, #6A6A6A, #303030); /* Chrome 10+, Saf5.1+ */ | |
1014 | background-image: -moz-linear-gradient(top, #6A6A6A, #303030); /* FF3.6 */ | |
1015 | background-image: -ms-linear-gradient(top, #6A6A6A, #303030); /* IE10 */ | |
1016 | background-image: -o-linear-gradient(top, #6A6A6A, #303030); /* Opera 11.10+ */ | |
1017 | background-image: linear-gradient(top, #6A6A6A, #303030); | |
1018 | filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#6A6A6A', EndColorStr='#303030'); /* IE6-IE9 */ | |
1019 | padding-bottom: 5px; | |
1020 | } | |
1021 | #pageheader a:link { color:#bbb; text-decoration:none;} | |
1022 | #pageheader a:visited { color:#bbb; text-decoration:none;} | |
1023 | #pageheader a:hover { color:#FFFFC9; text-decoration:none;} | |
1024 | #pageheader a:active { color:#bbb; text-decoration:none;} | |
1025 | .paging { background-color:#777; color:#ccc; text-align:center; padding:0 0 3 0;} | |
1026 | .paging a:link { color:#ccc; text-decoration:none;} | |
1027 | .paging a:visited { color:#ccc; } | |
1028 | .paging a:hover { color:#FFFFC9; } | |
1029 | .paging a:active { color:#fff; } | |
1030 | #headerform { padding:5 5 5 15; } | |
1031 | #editlinkform { padding:5 5 5 15px; width:80%; } | |
1032 | #linklist li { padding:4 10 8 20; border-bottom: 1px solid #bbb;} | |
1033 | #linklist li.private { background-color: #ccc; border-left:8px solid #888; } | |
1034 | .linktitle { font-size:14pt; font-weight:bold; } | |
1035 | .linktitle a { text-decoration: none; color:#0000EE; } | |
1036 | .linktitle a:hover { text-decoration: underline; } | |
1037 | .linktitle a:visited { color:#0000BB; } | |
1038 | .linkdate { font-size:8pt; color:#888; } | |
1039 | .linkurl { font-size:8pt; color:#4BAA74; } | |
1040 | .linkdescription { color:#000; margin-top:0px; margin-bottom:0px; font-weight:normal; } | |
1041 | .linktag { font-size:9pt; color:#777; background-color:#ddd; padding:0 6 0 6; -moz-box-shadow: inset 2px 2px 3px #ffffff; -webkit-box-shadow: inset 2px 2px 3px #ffffff; box-shadow: inset 2px 2px 3px ffffff; | |
1042 | border-bottom:1px solid #aaa; border-right:1px solid #aaa; } | |
1043 | .linktag a { color:#777; text-decoration:none; } | |
1044 | .buttoneditform { display:inline; } | |
1045 | #footer { font-size:8pt; text-align:center; border-top:1px solid #ddd; color: #888; } | |
1046 | --> | |
1047 | </style> | |
1048 | </head> | |
1049 | <body {$data['onload']}> | |
1050 | <div id="pageheader"><div style="float:right; font-style:italic; color:#bbb; text-align:right; padding:0 5 0 0;">Shaare your links...<br>{$linkcount} links</div> | |
1051 | <b><i>Shaarli {$shaarli_version}</i></b> - <a href="?">Home</a> {$menu} <a href="{$feedurl}" style="padding-left:30px;">RSS Feed</a> | |
1052 | {$data['pageheader']} | |
1053 | </div> | |
1054 | {$data['body']} | |
1055 | ||
1056 | HTML; | |
1057 | $exectime = round(microtime(true)-$STARTTIME,4); | |
1058 | 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 '.$exectime.' seconds ?</div>'; | |
1059 | if (isLoggedIn()) echo '<script language="JavaScript">function confirmDeleteLink() { var agree=confirm("Are you sure you want to delete this link ?"); if (agree) return true ; else return false ; }</script>'; | |
1060 | echo '</body></html>'; | |
1061 | } | |
1062 | ||
1063 | // ----------------------------------------------------------------------------------------------- | |
1064 | // Installation | |
1065 | // This function should NEVER be called if the file data/config.php exists. | |
1066 | function install() | |
1067 | { | |
1068 | // FIXME: check version of php ? | |
1069 | if (isset($_POST['setlogin']) && isset($_POST['setpassword']) && isset($_POST['settimezone'])) | |
1070 | { | |
1071 | if ($_POST['setlogin']!='' && $_POST['setpassword']!='' && in_array($_POST['settimezone'],timezone_identifiers_list())) | |
1072 | { // Everything is ok, let's create config file. | |
1073 | $salt=sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1074 | $hash = sha1($_POST['setpassword'].$_POST['setlogin'].$salt); | |
1075 | $config='<?php $GLOBALS[\'login\']='.var_export($_POST['setlogin'],true).'; $GLOBALS[\'hash\']='.var_export($hash,true).'; $GLOBALS[\'salt\']='.var_export($salt,true).'; date_default_timezone_set('.var_export($_POST['settimezone'],true).'); ?>'; | |
1076 | file_put_contents(CONFIG_FILE,$config); | |
1077 | echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location=\'?do=login\';</script>'; | |
1078 | exit; | |
1079 | } | |
1080 | } | |
1081 | // Display config form: | |
1082 | $timezones=''; | |
1083 | foreach(timezone_identifiers_list() as $tz) $timezones.='<option value="'.htmlspecialchars($tz).'">'.htmlspecialchars($tz)."</option>\n"; | |
1084 | echo <<<HTML | |
1085 | <html><title>Shaarli - Configuration</title><style type="text/css"> | |
1086 | body { font-family: "Trebuchet MS",Verdana,Arial,Helvetica,sans-serif; font-size:10pt; background-color: #ffffff; } | |
1087 | input { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #aaaaaa; -webkit-box-shadow: inset 2px 2px 3px #aaaaaa; box-shadow: inset 2px 2px 3px #aaaaaa; } | |
1088 | .bigbutton {border-style:outset;border-width:2px;padding:3px 6px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;} | |
1089 | </style></head><body onload="document.configform.setlogin.focus();"><h1>Shaarli - Shaare your links...</h1>It looks like it's the first time you run Shaarli. Please chose a login/password and a timezone:<br> | |
1090 | <form method="POST" action="" name="configform" style="border:1px solid black; padding:10 10 10 10;"> | |
1091 | Login: <input type="text" name="setlogin"><br><br>Password: <input type="password" name="setpassword"><br><br> | |
1092 | Timezone: <select name="settimezone"><option value="0" selected>(please select:)</option>{$timezones}</select><br><br> | |
1093 | <input type="submit" name="Save" value="Save config" class="bigbutton"></form></body></html> | |
1094 | HTML; | |
1095 | exit; | |
1096 | } | |
1097 | ||
1098 | $LINKSDB=new linkdb(isLoggedIn()); // Read links from database (and filter private links if used it not logged in). | |
1099 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=LINKS_PER_PAGE; | |
1100 | if (startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
1101 | renderPage(); | |
1102 | ?> |