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45034273 | 1 | <?php |
129ff3c2 | 2 | // Shaarli 0.0.45beta - Shaare your links... |
ad6c27b7 | 3 | // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net |
45034273 SS |
4 | // http://sebsauvage.net/wiki/doku.php?id=php:shaarli |
5 | // Licence: http://www.opensource.org/licenses/zlib-license.php | |
ad6c27b7 | 6 | // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x) |
45034273 | 7 | // ----------------------------------------------------------------------------------------------- |
cb49ab94 MC |
8 | // NEVER TRUST IN PHP.INI |
9 | // Some hosts do not define a default timezone in php.ini, | |
10 | // so we have to do this for avoid the strict standard error. | |
11 | date_default_timezone_set('UTC'); | |
12 | ||
45034273 | 13 | // ----------------------------------------------------------------------------------------------- |
ed5b38dd | 14 | // Hardcoded parameter (These parameters can be overwritten by creating the file /data/options.php) |
45034273 SS |
15 | $GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory |
16 | $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password) | |
17 | $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file. | |
18 | $GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page. | |
19 | $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans. | |
20 | $GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures. | |
21 | $GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes) | |
22 | $GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login | |
23 | $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in. | |
1099d8fc | 24 | $GLOBALS['config']['SHOW_ATOM'] = false; // If true, an extra "ATOM feed" button will be displayed in the toolbar |
45034273 SS |
25 | $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links. |
26 | $GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr) | |
27 | $GLOBALS['config']['PAGECACHE'] = 'pagecache'; // Page cache directory. | |
ad6c27b7 | 28 | $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage. |
45034273 | 29 | $GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable. |
2f2aa06b V |
30 | $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!) |
31 | $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!) | |
45034273 SS |
32 | $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli. |
33 | $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours | |
34 | // Note: You must have publisher.php in the same directory as Shaarli index.php | |
d2f51763 | 35 | $GLOBALS['config']['ARCHIVE_ORG'] = false; // For each link, add a link to an archived version on archive.org |
ed5b38dd | 36 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = true; // Enable RSS permalinks by default. This corresponds to the default behavior of shaarli before this was added as an option. |
45034273 | 37 | // ----------------------------------------------------------------------------------------------- |
ad6c27b7 | 38 | // You should not touch below (or at your own risks!) |
39 | // Optional config file. | |
45034273 SS |
40 | if (is_file($GLOBALS['config']['DATADIR'].'/options.php')) require($GLOBALS['config']['DATADIR'].'/options.php'); |
41 | ||
129ff3c2 | 42 | define('shaarli_version','0.0.45beta'); |
ad6c27b7 | 43 | define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in PHP code. |
44 | define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in PHP code. | |
ae00595b CH |
45 | // http://server.com/x/shaarli --> /shaarli/ |
46 | define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); | |
45034273 SS |
47 | |
48 | // Force cookie path (but do not change lifetime) | |
49 | $cookie=session_get_cookie_params(); | |
2d9fab88 | 50 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 51 | session_set_cookie_params($cookie['lifetime'],$cookiedir,$_SERVER['SERVER_NAME']); // Set default cookie expiration and path. |
45034273 | 52 | |
f37664a2 SS |
53 | // Set session parameters on server side. |
54 | define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired. | |
55 | ini_set('session.use_cookies', 1); // Use cookies to store session. | |
ad6c27b7 | 56 | ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL). |
57 | ini_set('session.use_trans_sid', false); // Prevent PHP form using sessionID in URL if cookies are disabled. | |
f37664a2 SS |
58 | session_name('shaarli'); |
59 | if (session_id() == '') session_start(); // Start session if needed (Some server auto-start sessions). | |
60 | ||
45034273 SS |
61 | // PHP Settings |
62 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. | |
63 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
64 | ini_set('post_max_size', '16M'); | |
65 | ini_set('upload_max_filesize', '16M'); | |
66 | checkphpversion(); | |
67 | error_reporting(E_ALL^E_WARNING); // See all error except warnings. | |
68 | //error_reporting(-1); // See all errors (for debugging only) | |
69 | ||
70 | include "inc/rain.tpl.class.php"; //include Rain TPL | |
25f5c59d | 71 | raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory |
25f5c59d | 72 | raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory |
45034273 SS |
73 | |
74 | ob_start(); // Output buffering for the page cache. | |
75 | ||
76 | ||
77 | // In case stupid admin has left magic_quotes enabled in php.ini: | |
78 | if (get_magic_quotes_gpc()) | |
79 | { | |
80 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
81 | $_POST = array_map('stripslashes_deep', $_POST); | |
82 | $_GET = array_map('stripslashes_deep', $_GET); | |
83 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
84 | } | |
85 | ||
86 | // Prevent caching on client side or proxy: (yes, it's ugly) | |
87 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
88 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
89 | header("Cache-Control: post-check=0, pre-check=0", false); | |
90 | header("Pragma: no-cache"); | |
91 | ||
ad6c27b7 | 92 | // Directories creations (Note that your web host may require different rights than 705.) |
60b83e7c | 93 | if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>'); |
45034273 | 94 | |
45034273 SS |
95 | // Handling of old config file which do not have the new parameters. |
96 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl()); | |
97 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); | |
8a80e4fe | 98 | if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; |
45034273 | 99 | if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; |
858c5c2b | 100 | if (empty($GLOBALS['disablejquery'])) $GLOBALS['disablejquery']=false; |
bb8f712d | 101 | if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; |
ebb2880d | 102 | if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; |
858c5c2b | 103 | // I really need to rewrite Shaarli with a proper configuation manager. |
45034273 | 104 | |
8a80e4fe SS |
105 | // Run config screen if first run: |
106 | if (!is_file($GLOBALS['config']['CONFIG_FILE'])) install(); | |
107 | ||
108 | require $GLOBALS['config']['CONFIG_FILE']; // Read login/password hash into $GLOBALS. | |
109 | ||
ae00595b CH |
110 | // a token depending of deployment salt, user password, and the current ip |
111 | define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); | |
8a80e4fe | 112 | |
45034273 SS |
113 | autoLocale(); // Sniff browser language and set date format accordingly. |
114 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
115 | ||
ff69d87e FE |
116 | //================================================================================================== |
117 | // Checking session state (i.e. is the user still logged in) | |
118 | //================================================================================================== | |
119 | ||
120 | function setup_login_state() { | |
121 | $userIsLoggedIn = false; // By default, we do not consider the user as logged in; | |
122 | $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. | |
123 | if ($GLOBALS['config']['OPEN_SHAARLI']) { | |
124 | $userIsLoggedIn = true; | |
125 | } | |
126 | if (!isset($GLOBALS['login'])) { | |
127 | $userIsLoggedIn = false; // Shaarli is not configured yet. | |
128 | $loginFailure = true; | |
129 | } | |
130 | if (isset($_COOKIE['shaarli_staySignedIn']) && | |
131 | $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && | |
132 | !$loginFailure) | |
133 | { | |
134 | fillSessionInfo(); | |
135 | $userIsLoggedIn = true; | |
136 | } | |
137 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
138 | if (empty($_SESSION['uid']) || | |
139 | ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || | |
140 | time() >= $_SESSION['expires_on']) | |
141 | { | |
142 | logout(); | |
143 | $userIsLoggedIn = false; | |
144 | $loginFailure = true; | |
145 | } | |
146 | if (!empty($_SESSION['longlastingsession'])) { | |
147 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked. | |
148 | } | |
149 | else { | |
150 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date. | |
151 | } | |
152 | if (!$loginFailure) { | |
153 | $userIsLoggedIn = true; | |
154 | } | |
155 | ||
156 | return $userIsLoggedIn; | |
157 | } | |
158 | //================================================================================================== | |
159 | $userIsLoggedIn = setup_login_state(); | |
160 | //================================================================================================== | |
161 | //================================================================================================== | |
162 | ||
ad6c27b7 | 163 | // Check PHP version |
45034273 SS |
164 | function checkphpversion() |
165 | { | |
166 | if (version_compare(PHP_VERSION, '5.1.0') < 0) | |
167 | { | |
168 | header('Content-Type: text/plain; charset=utf-8'); | |
50976223 | 169 | echo 'Your PHP version is obsolete! Shaarli requires at least php 5.1.0, and thus cannot run. Sorry. Your PHP version has known security vulnerabilities and should be updated as soon as possible.'; |
45034273 SS |
170 | exit; |
171 | } | |
172 | } | |
173 | ||
174 | // Checks if an update is available for Shaarli. | |
175 | // (at most once a day, and only for registered user.) | |
176 | // Output: '' = no new version. | |
177 | // other= the available version. | |
178 | function checkUpdate() | |
179 | { | |
180 | if (!isLoggedIn()) return ''; // Do not check versions for visitors. | |
329e0768 | 181 | if (empty($GLOBALS['config']['ENABLE_UPDATECHECK'])) return ''; // Do not check if the user doesn't want to. |
45034273 SS |
182 | |
183 | // Get latest version number at most once a day. | |
184 | if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL']))) | |
185 | { | |
186 | $version=shaarli_version; | |
dbcad740 | 187 | list($httpstatus,$headers,$data) = getHTTP('https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php',2); |
188 | if (strpos($httpstatus,'200 OK')!==false) $version=str_replace(' */ ?>','',str_replace('<?php /* ','',$data)); | |
ad6c27b7 | 189 | // If failed, never mind. We don't want to bother the user with that. |
45034273 SS |
190 | file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date |
191 | } | |
192 | // Compare versions: | |
193 | $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']); | |
194 | if (version_compare($newestversion,shaarli_version)==1) return $newestversion; | |
195 | return ''; | |
196 | } | |
197 | ||
198 | ||
199 | // ----------------------------------------------------------------------------------------------- | |
200 | // Simple cache system (mainly for the RSS/ATOM feeds). | |
201 | ||
202 | class pageCache | |
203 | { | |
204 | private $url; // Full URL of the page to cache (typically the value returned by pageUrl()) | |
ad6c27b7 | 205 | private $shouldBeCached; // boolean: Should this url be cached? |
206 | private $filename; // Name of the cache file for this url. | |
45034273 | 207 | |
bb8f712d | 208 | /* |
ad6c27b7 | 209 | $url = URL (typically the value returned by pageUrl()) |
45034273 SS |
210 | $shouldBeCached = boolean. If false, the cache will be disabled. |
211 | */ | |
212 | public function __construct($url,$shouldBeCached) | |
213 | { | |
214 | $this->url = $url; | |
215 | $this->filename = $GLOBALS['config']['PAGECACHE'].'/'.sha1($url).'.cache'; | |
216 | $this->shouldBeCached = $shouldBeCached; | |
bb8f712d | 217 | } |
45034273 SS |
218 | |
219 | // If the page should be cached and a cached version exists, | |
220 | // returns the cached version (otherwise, return null). | |
221 | public function cachedVersion() | |
222 | { | |
223 | if (!$this->shouldBeCached) return null; | |
224 | if (is_file($this->filename)) { return file_get_contents($this->filename); exit; } | |
225 | return null; | |
226 | } | |
227 | ||
228 | // Put a page in the cache. | |
229 | public function cache($page) | |
230 | { | |
231 | if (!$this->shouldBeCached) return; | |
45034273 SS |
232 | file_put_contents($this->filename,$page); |
233 | } | |
234 | ||
235 | // Purge the whole cache. | |
236 | // (call with pageCache::purgeCache()) | |
237 | public static function purgeCache() | |
238 | { | |
239 | if (is_dir($GLOBALS['config']['PAGECACHE'])) | |
240 | { | |
241 | $handler = opendir($GLOBALS['config']['PAGECACHE']); | |
64bf914a | 242 | if ($handler!==false) |
45034273 | 243 | { |
bb8f712d | 244 | while (($filename = readdir($handler))!==false) |
45034273 SS |
245 | { |
246 | if (endsWith($filename,'.cache')) { unlink($GLOBALS['config']['PAGECACHE'].'/'.$filename); } | |
247 | } | |
248 | closedir($handler); | |
249 | } | |
250 | } | |
251 | } | |
252 | ||
253 | } | |
254 | ||
255 | ||
256 | // ----------------------------------------------------------------------------------------------- | |
257 | // Log to text file | |
258 | function logm($message) | |
259 | { | |
260 | $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; | |
261 | file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND); | |
262 | } | |
263 | ||
264 | // Same as nl2br(), but escapes < and > | |
265 | function nl2br_escaped($html) | |
266 | { | |
267 | return str_replace('>','>',str_replace('<','<',nl2br($html))); | |
268 | } | |
269 | ||
c002ca9c | 270 | /* Returns the small hash of a string, using RFC 4648 base64url format |
ad6c27b7 | 271 | e.g. smallHash('20111006_131924') --> yZH23w |
45034273 SS |
272 | Small hashes: |
273 | - are unique (well, as unique as crc32, at last) | |
274 | - are always 6 characters long. | |
275 | - only use the following characters: a-z A-Z 0-9 - _ @ | |
276 | - are NOT cryptographically secure (they CAN be forged) | |
277 | In Shaarli, they are used as a tinyurl-like link to individual entries. | |
278 | */ | |
279 | function smallHash($text) | |
280 | { | |
281 | $t = rtrim(base64_encode(hash('crc32',$text,true)),'='); | |
c002ca9c | 282 | return strtr($t, '+/', '-_'); |
45034273 SS |
283 | } |
284 | ||
ad6c27b7 | 285 | // In a string, converts URLs to clickable links. |
45034273 SS |
286 | // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 |
287 | function text2clickable($url) | |
288 | { | |
289 | $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; | |
30b0672d | 290 | return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url); |
45034273 SS |
291 | } |
292 | ||
293 | // This function inserts where relevant so that multiple spaces are properly displayed in HTML | |
294 | // even in the absence of <pre> (This is used in description to keep text formatting) | |
295 | function keepMultipleSpaces($text) | |
296 | { | |
297 | return str_replace(' ',' ',$text); | |
bb8f712d | 298 | |
45034273 SS |
299 | } |
300 | // ------------------------------------------------------------------------------------------ | |
301 | // Sniff browser language to display dates in the right format automatically. | |
302 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
303 | function autoLocale() | |
304 | { | |
305 | $loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE | |
ad6c27b7 | 306 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" |
307 | { // (It's a bit crude, but it works very well. Preferred language is always presented first.) | |
45034273 SS |
308 | if (preg_match('/([a-z]{2}(-[a-z]{2})?)/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) $loc=$matches[1]; |
309 | } | |
310 | setlocale(LC_TIME,$loc); // LC_TIME = Set local for date/time format only. | |
311 | } | |
312 | ||
313 | // ------------------------------------------------------------------------------------------ | |
314 | // PubSubHubbub protocol support (if enabled) [UNTESTED] | |
315 | // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ ) | |
316 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php'; | |
317 | function pubsubhub() | |
318 | { | |
319 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
320 | { | |
321 | $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']); | |
322 | $topic_url = array ( | |
323 | indexUrl().'?do=atom', | |
324 | indexUrl().'?do=rss' | |
325 | ); | |
326 | $p->publish_update($topic_url); | |
327 | } | |
328 | } | |
329 | ||
330 | // ------------------------------------------------------------------------------------------ | |
331 | // Session management | |
45034273 SS |
332 | |
333 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
334 | function allIPs() | |
335 | { | |
336 | $ip = $_SERVER["REMOTE_ADDR"]; | |
337 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
338 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
339 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
340 | return $ip; | |
341 | } | |
342 | ||
ae00595b | 343 | function fillSessionInfo() { |
ad6c27b7 | 344 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid) |
ae00595b CH |
345 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. |
346 | $_SESSION['username']=$GLOBALS['login']; | |
347 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
348 | } | |
349 | ||
45034273 SS |
350 | // Check that user/password is correct. |
351 | function check_auth($login,$password) | |
352 | { | |
353 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
354 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
355 | { // Login/password is correct. | |
ae00595b | 356 | fillSessionInfo(); |
45034273 SS |
357 | logm('Login successful'); |
358 | return True; | |
359 | } | |
360 | logm('Login failed for user '.$login); | |
361 | return False; | |
362 | } | |
363 | ||
364 | // Returns true if the user is logged in. | |
365 | function isLoggedIn() | |
366 | { | |
ff69d87e FE |
367 | global $userIsLoggedIn; |
368 | return $userIsLoggedIn; | |
45034273 SS |
369 | } |
370 | ||
371 | // Force logout. | |
ff69d87e FE |
372 | function logout() { |
373 | if (isset($_SESSION)) { | |
374 | unset($_SESSION['uid']); | |
375 | unset($_SESSION['ip']); | |
376 | unset($_SESSION['username']); | |
377 | unset($_SESSION['privateonly']); | |
378 | } | |
379 | setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH); | |
ae00595b | 380 | } |
45034273 SS |
381 | |
382 | ||
383 | // ------------------------------------------------------------------------------------------ | |
384 | // Brute force protection system | |
385 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
386 | if (!is_file($GLOBALS['config']['IPBANS_FILENAME'])) file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"); | |
387 | include $GLOBALS['config']['IPBANS_FILENAME']; | |
388 | // Signal a failed login. Will ban the IP if too many failures: | |
389 | function ban_loginFailed() | |
390 | { | |
391 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
392 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
393 | $gb['FAILURES'][$ip]++; | |
394 | if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1)) | |
395 | { | |
396 | $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION']; | |
397 | logm('IP address banned from login'); | |
398 | } | |
399 | $GLOBALS['IPBANS'] = $gb; | |
400 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
401 | } | |
402 | ||
403 | // Signals a successful login. Resets failed login counter. | |
404 | function ban_loginOk() | |
405 | { | |
406 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
407 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
408 | $GLOBALS['IPBANS'] = $gb; | |
409 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
410 | } | |
411 | ||
412 | // Checks if the user CAN login. If 'true', the user can try to login. | |
413 | function ban_canLogin() | |
414 | { | |
415 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
416 | if (isset($gb['BANS'][$ip])) | |
417 | { | |
418 | // User is banned. Check if the ban has expired: | |
419 | if ($gb['BANS'][$ip]<=time()) | |
420 | { // Ban expired, user can try to login again. | |
421 | logm('Ban lifted.'); | |
422 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
423 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
424 | return true; // Ban has expired, user can login. | |
425 | } | |
426 | return false; // User is banned. | |
427 | } | |
428 | return true; // User is not banned. | |
429 | } | |
430 | ||
431 | // ------------------------------------------------------------------------------------------ | |
432 | // Process login form: Check if login/password is correct. | |
433 | if (isset($_POST['login'])) | |
434 | { | |
435 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
436 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
ad6c27b7 | 437 | { // Login/password is OK. |
45034273 SS |
438 | ban_loginOk(); |
439 | // If user wants to keep the session cookie even after the browser closes: | |
440 | if (!empty($_POST['longlastingsession'])) | |
441 | { | |
ae00595b | 442 | setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH); |
45034273 SS |
443 | $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year) |
444 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side. | |
2d9fab88 SS |
445 | |
446 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
2f32d074 | 447 | session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side |
ad6c27b7 | 448 | // Note: Never forget the trailing slash on the cookie path! |
45034273 SS |
449 | session_regenerate_id(true); // Send cookie with new expiration date to browser. |
450 | } | |
451 | else // Standard session expiration (=when browser closes) | |
452 | { | |
2d9fab88 | 453 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 454 | session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes" |
45034273 SS |
455 | session_regenerate_id(true); |
456 | } | |
457 | // Optional redirect after login: | |
a1795ddc | 458 | if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; } |
45034273 SS |
459 | if (isset($_POST['returnurl'])) |
460 | { | |
461 | if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen. | |
462 | header('Location: '.$_POST['returnurl']); exit; | |
463 | } | |
464 | header('Location: ?'); exit; | |
465 | } | |
466 | else | |
467 | { | |
468 | ban_loginFailed(); | |
705f8355 | 469 | $redir = ''; |
a1795ddc | 470 | if (isset($_GET['post'])) { $redir = '&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):''); } |
fe16b01e | 471 | echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen. |
45034273 SS |
472 | exit; |
473 | } | |
474 | } | |
475 | ||
476 | // ------------------------------------------------------------------------------------------ | |
477 | // Misc utility functions: | |
478 | ||
479 | // Returns the server URL (including port and http/https), without path. | |
ad6c27b7 | 480 | // e.g. "http://myserver.com:8080" |
45034273 SS |
481 | // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL. |
482 | function serverUrl() | |
483 | { | |
484 | $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443'; // HTTPS detection. | |
485 | $serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]); | |
2f32d074 | 486 | return 'http'.($https?'s':'').'://'.$_SERVER['SERVER_NAME'].$serverport; |
45034273 SS |
487 | } |
488 | ||
489 | // Returns the absolute URL of current script, without the query. | |
ad6c27b7 | 490 | // (e.g. http://sebsauvage.net/links/) |
45034273 SS |
491 | function indexUrl() |
492 | { | |
9e975d86 SS |
493 | $scriptname = $_SERVER["SCRIPT_NAME"]; |
494 | // If the script is named 'index.php', we remove it (for better looking URLs, | |
ad6c27b7 | 495 | // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde) |
9e975d86 SS |
496 | if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9); |
497 | return serverUrl() . $scriptname; | |
45034273 SS |
498 | } |
499 | ||
500 | // Returns the absolute URL of current script, WITH the query. | |
ad6c27b7 | 501 | // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug) |
45034273 SS |
502 | function pageUrl() |
503 | { | |
504 | return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : ''); | |
505 | } | |
506 | ||
ad6c27b7 | 507 | // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes. |
45034273 SS |
508 | function return_bytes($val) |
509 | { | |
510 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
511 | switch($last) | |
512 | { | |
513 | case 'g': $val *= 1024; | |
514 | case 'm': $val *= 1024; | |
515 | case 'k': $val *= 1024; | |
516 | } | |
517 | return $val; | |
518 | } | |
519 | ||
520 | // Try to determine max file size for uploads (POST). | |
521 | // Returns an integer (in bytes) | |
522 | function getMaxFileSize() | |
523 | { | |
524 | $size1 = return_bytes(ini_get('post_max_size')); | |
525 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
526 | // Return the smaller of two: | |
527 | $maxsize = min($size1,$size2); | |
ad6c27b7 | 528 | // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000) |
45034273 SS |
529 | return $maxsize; |
530 | } | |
531 | ||
532 | // Tells if a string start with a substring or not. | |
533 | function startsWith($haystack,$needle,$case=true) | |
534 | { | |
535 | if($case){return (strcmp(substr($haystack, 0, strlen($needle)),$needle)===0);} | |
536 | return (strcasecmp(substr($haystack, 0, strlen($needle)),$needle)===0); | |
537 | } | |
538 | ||
539 | // Tells if a string ends with a substring or not. | |
540 | function endsWith($haystack,$needle,$case=true) | |
541 | { | |
542 | if($case){return (strcmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);} | |
543 | return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0); | |
544 | } | |
545 | ||
546 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) | |
547 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
548 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
549 | function linkdate2timestamp($linkdate) | |
550 | { | |
551 | $Y=$M=$D=$h=$m=$s=0; | |
552 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
553 | return mktime($h,$m,$s,$M,$D,$Y); | |
554 | } | |
555 | ||
556 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
557 | (used to build the pubDate attribute in RSS feed.) */ | |
558 | function linkdate2rfc822($linkdate) | |
559 | { | |
560 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
561 | } | |
562 | ||
563 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date. | |
564 | (used to build the updated tags in ATOM feed.) */ | |
565 | function linkdate2iso8601($linkdate) | |
566 | { | |
567 | return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format. | |
568 | } | |
569 | ||
45034273 SS |
570 | // Parse HTTP response headers and return an associative array. |
571 | function http_parse_headers_shaarli( $headers ) | |
572 | { | |
573 | $res=array(); | |
574 | foreach($headers as $header) | |
575 | { | |
576 | $i = strpos($header,': '); | |
577 | if ($i!==false) | |
578 | { | |
579 | $key=substr($header,0,$i); | |
580 | $value=substr($header,$i+2,strlen($header)-$i-2); | |
581 | $res[$key]=$value; | |
582 | } | |
583 | } | |
584 | return $res; | |
585 | } | |
586 | ||
587 | /* GET an URL. | |
ad6c27b7 | 588 | Input: $url : URL to get (http://...) |
45034273 | 589 | $timeout : Network timeout (will wait this many seconds for an anwser before giving up). |
ad6c27b7 | 590 | Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message |
591 | [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type']) | |
45034273 SS |
592 | [2] = data |
593 | Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/'); | |
594 | if (strpos($httpstatus,'200 OK')!==false) | |
595 | echo 'Data type: '.htmlspecialchars($headers['Content-Type']); | |
596 | else | |
597 | echo 'There was an error: '.htmlspecialchars($httpstatus) | |
598 | */ | |
599 | function getHTTP($url,$timeout=30) | |
600 | { | |
601 | try | |
602 | { | |
03545ef6 | 603 | $options = array('http'=>array('method'=>'GET','timeout' => $timeout, 'user_agent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0')); // Force network timeout |
45034273 SS |
604 | $context = stream_context_create($options); |
605 | $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source. | |
606 | if (!$data) { return array('HTTP Error',array(),''); } | |
ad6c27b7 | 607 | $httpStatus=$http_response_header[0]; // e.g. "HTTP/1.1 200 OK" |
45034273 SS |
608 | $responseHeaders=http_parse_headers_shaarli($http_response_header); |
609 | return array($httpStatus,$responseHeaders,$data); | |
610 | } | |
ad6c27b7 | 611 | catch (Exception $e) // getHTTP *can* fail silently (we don't care if the title cannot be fetched) |
45034273 SS |
612 | { |
613 | return array($e->getMessage(),'',''); | |
614 | } | |
615 | } | |
616 | ||
617 | // Extract title from an HTML document. | |
618 | // (Returns an empty string if not found.) | |
619 | function html_extract_title($html) | |
620 | { | |
621 | return preg_match('!<title>(.*?)</title>!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ; | |
622 | } | |
623 | ||
624 | // ------------------------------------------------------------------------------------------ | |
625 | // Token management for XSRF protection | |
626 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
627 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
628 | ||
629 | // Returns a token. | |
630 | function getToken() | |
631 | { | |
a1f5a6ec | 632 | $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string. |
45034273 SS |
633 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. |
634 | return $rnd; | |
635 | } | |
636 | ||
ad6c27b7 | 637 | // Tells if a token is OK. Using this function will destroy the token. |
638 | // true=token is OK. | |
45034273 SS |
639 | function tokenOk($token) |
640 | { | |
641 | if (isset($_SESSION['tokens'][$token])) | |
642 | { | |
643 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
ad6c27b7 | 644 | return true; // Token is OK. |
45034273 SS |
645 | } |
646 | return false; // Wrong token, or already used. | |
647 | } | |
648 | ||
649 | // ------------------------------------------------------------------------------------------ | |
650 | /* This class is in charge of building the final page. | |
651 | (This is basically a wrapper around RainTPL which pre-fills some fields.) | |
652 | p = new pageBuilder; | |
653 | p.assign('myfield','myvalue'); | |
654 | p.renderPage('mytemplate'); | |
bb8f712d | 655 | |
45034273 SS |
656 | */ |
657 | class pageBuilder | |
658 | { | |
659 | private $tpl; // RainTPL template | |
660 | ||
661 | function __construct() | |
662 | { | |
663 | $this->tpl=false; | |
bb8f712d | 664 | } |
45034273 SS |
665 | |
666 | private function initialize() | |
bb8f712d KT |
667 | { |
668 | $this->tpl = new RainTPL; | |
45034273 SS |
669 | $this->tpl->assign('newversion',checkUpdate()); |
670 | $this->tpl->assign('feedurl',htmlspecialchars(indexUrl())); | |
671 | $searchcrits=''; // Search criteria | |
672 | if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']); | |
673 | elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']); | |
674 | $this->tpl->assign('searchcrits',$searchcrits); | |
675 | $this->tpl->assign('source',indexUrl()); | |
676 | $this->tpl->assign('version',shaarli_version); | |
677 | $this->tpl->assign('scripturl',indexUrl()); | |
678 | $this->tpl->assign('pagetitle','Shaarli'); | |
ad6c27b7 | 679 | $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links? |
45034273 | 680 | if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']); |
ebb2880d | 681 | if (!empty($GLOBALS['titleLink'])) $this->tpl->assign('titleLink',$GLOBALS['titleLink']); |
45034273 SS |
682 | if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']); |
683 | $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] ); | |
bb8f712d | 684 | return; |
45034273 | 685 | } |
bb8f712d | 686 | |
45034273 SS |
687 | // The following assign() method is basically the same as RainTPL (except that it's lazy) |
688 | public function assign($what,$where) | |
689 | { | |
690 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
691 | $this->tpl->assign($what,$where); | |
692 | } | |
bb8f712d | 693 | |
45034273 | 694 | // Render a specific page (using a template). |
ad6c27b7 | 695 | // e.g. pb.renderPage('picwall') |
45034273 SS |
696 | public function renderPage($page) |
697 | { | |
698 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
699 | $this->tpl->draw($page); | |
700 | } | |
701 | } | |
702 | ||
703 | // ------------------------------------------------------------------------------------------ | |
704 | /* Data storage for links. | |
705 | This object behaves like an associative array. | |
706 | Example: | |
707 | $mylinks = new linkdb(); | |
708 | echo $mylinks['20110826_161819']['title']; | |
709 | foreach($mylinks as $link) | |
710 | echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description']; | |
bb8f712d | 711 | |
45034273 SS |
712 | Available keys: |
713 | title : Title of the link | |
ad6c27b7 | 714 | url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (e.g.'?m-ukcw') |
45034273 | 715 | description : description of the entry |
ad6c27b7 | 716 | private : Is this link private? 0=no, other value=yes |
717 | linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (e.g.'20110914_192317') | |
bb8f712d | 718 | tags : tags attached to this entry (separated by spaces) |
45034273 SS |
719 | |
720 | We implement 3 interfaces: | |
721 | - ArrayAccess so that this object behaves like an associative array. | |
722 | - Iterator so that this object can be used in foreach() loops. | |
723 | - Countable interface so that we can do a count() on this object. | |
724 | */ | |
725 | class linkdb implements Iterator, Countable, ArrayAccess | |
726 | { | |
ad6c27b7 | 727 | private $links; // List of links (associative array. Key=linkdate (e.g. "20110823_124546"), value= associative array (keys:title,description...) |
45034273 SS |
728 | private $urls; // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate) |
729 | private $keys; // List of linkdate keys (for the Iterator interface implementation) | |
730 | private $position; // Position in the $this->keys array. (for the Iterator interface implementation.) | |
ad6c27b7 | 731 | private $loggedin; // Is the user logged in? (used to filter private links) |
45034273 SS |
732 | |
733 | // Constructor: | |
734 | function __construct($isLoggedIn) | |
ad6c27b7 | 735 | // Input : $isLoggedIn : is the user logged in? |
45034273 SS |
736 | { |
737 | $this->loggedin = $isLoggedIn; | |
738 | $this->checkdb(); // Make sure data file exists. | |
739 | $this->readdb(); // Then read it. | |
740 | } | |
741 | ||
742 | // ---- Countable interface implementation | |
743 | public function count() { return count($this->links); } | |
744 | ||
745 | // ---- ArrayAccess interface implementation | |
746 | public function offsetSet($offset, $value) | |
747 | { | |
748 | if (!$this->loggedin) die('You are not authorized to add a link.'); | |
ad6c27b7 | 749 | if (empty($value['linkdate']) || empty($value['url'])) die('Internal Error: A link should always have a linkdate and URL.'); |
45034273 SS |
750 | if (empty($offset)) die('You must specify a key.'); |
751 | $this->links[$offset] = $value; | |
752 | $this->urls[$value['url']]=$offset; | |
753 | } | |
754 | public function offsetExists($offset) { return array_key_exists($offset,$this->links); } | |
755 | public function offsetUnset($offset) | |
756 | { | |
757 | if (!$this->loggedin) die('You are not authorized to delete a link.'); | |
758 | $url = $this->links[$offset]['url']; unset($this->urls[$url]); | |
759 | unset($this->links[$offset]); | |
760 | } | |
761 | public function offsetGet($offset) { return isset($this->links[$offset]) ? $this->links[$offset] : null; } | |
762 | ||
763 | // ---- Iterator interface implementation | |
764 | function rewind() { $this->keys=array_keys($this->links); rsort($this->keys); $this->position=0; } // Start over for iteration, ordered by date (latest first). | |
765 | function key() { return $this->keys[$this->position]; } // current key | |
766 | function current() { return $this->links[$this->keys[$this->position]]; } // current value | |
767 | function next() { ++$this->position; } // go to next item | |
768 | function valid() { return isset($this->keys[$this->position]); } // Check if current position is valid. | |
769 | ||
770 | // ---- Misc methods | |
771 | private function checkdb() // Check if db directory and file exists. | |
772 | { | |
773 | if (!file_exists($GLOBALS['config']['DATASTORE'])) // Create a dummy database for example. | |
774 | { | |
775 | $this->links = array(); | |
776 | $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'); | |
777 | $this->links[$link['linkdate']] = $link; | |
58a8f4ca | 778 | $link = array('title'=>'My secret stuff... - Pastebin.com','url'=>'http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=','description'=>'SShhhh!! I\'m a private link only YOU can see. You can delete me too.','private'=>1,'linkdate'=>'20110914_074522','tags'=>'secretstuff'); |
45034273 SS |
779 | $this->links[$link['linkdate']] = $link; |
780 | file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk | |
781 | } | |
782 | } | |
783 | ||
784 | // Read database from disk to memory | |
785 | private function readdb() | |
786 | { | |
787 | // Read data | |
788 | $this->links=(file_exists($GLOBALS['config']['DATASTORE']) ? unserialize(gzinflate(base64_decode(substr(file_get_contents($GLOBALS['config']['DATASTORE']),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() ); | |
789 | // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439 | |
790 | ||
791 | // If user is not logged in, filter private links. | |
792 | if (!$this->loggedin) | |
793 | { | |
794 | $toremove=array(); | |
795 | foreach($this->links as $link) { if ($link['private']!=0) $toremove[]=$link['linkdate']; } | |
796 | foreach($toremove as $linkdate) { unset($this->links[$linkdate]); } | |
797 | } | |
798 | ||
799 | // Keep the list of the mapping URLs-->linkdate up-to-date. | |
800 | $this->urls=array(); | |
801 | foreach($this->links as $link) { $this->urls[$link['url']]=$link['linkdate']; } | |
802 | } | |
803 | ||
804 | // Save database from memory to disk. | |
805 | public function savedb() | |
806 | { | |
807 | if (!$this->loggedin) die('You are not authorized to change the database.'); | |
808 | file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); | |
809 | invalidateCaches(); | |
810 | } | |
811 | ||
ad6c27b7 | 812 | // Returns the link for a given URL (if it exists). False if it does not exist. |
45034273 SS |
813 | public function getLinkFromUrl($url) |
814 | { | |
815 | if (isset($this->urls[$url])) return $this->links[$this->urls[$url]]; | |
816 | return false; | |
817 | } | |
818 | ||
ad6c27b7 | 819 | // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links. |
820 | // e.g. print_r($mydb->filterFulltext('hollandais')); | |
45034273 SS |
821 | public function filterFulltext($searchterms) |
822 | { | |
823 | // FIXME: explode(' ',$searchterms) and perform a AND search. | |
ad6c27b7 | 824 | // FIXME: accept double-quotes to search for a string "as is"? |
2e45fdd8 FE |
825 | // Using mb_convert_case($val, MB_CASE_LOWER, 'UTF-8') allows us to perform searches on |
826 | // Unicode text. See https://github.com/shaarli/Shaarli/issues/75 for examples. | |
45034273 | 827 | $filtered=array(); |
2e45fdd8 | 828 | $s = mb_convert_case($searchterms, MB_CASE_LOWER, 'UTF-8'); |
45034273 SS |
829 | foreach($this->links as $l) |
830 | { | |
2e45fdd8 FE |
831 | $found= (strpos(mb_convert_case($l['title'], MB_CASE_LOWER, 'UTF-8'),$s) !== false) |
832 | || (strpos(mb_convert_case($l['description'], MB_CASE_LOWER, 'UTF-8'),$s) !== false) | |
833 | || (strpos(mb_convert_case($l['url'], MB_CASE_LOWER, 'UTF-8'),$s) !== false) | |
834 | || (strpos(mb_convert_case($l['tags'], MB_CASE_LOWER, 'UTF-8'),$s) !== false); | |
45034273 SS |
835 | if ($found) $filtered[$l['linkdate']] = $l; |
836 | } | |
837 | krsort($filtered); | |
838 | return $filtered; | |
839 | } | |
840 | ||
841 | // Filter by tag. | |
842 | // You can specify one or more tags (tags can be separated by space or comma). | |
ad6c27b7 | 843 | // e.g. print_r($mydb->filterTags('linux programming')); |
45034273 SS |
844 | public function filterTags($tags,$casesensitive=false) |
845 | { | |
2e45fdd8 FE |
846 | // Same as above, we use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek) |
847 | // TODO: is $casesensitive ever true ? | |
848 | $t = str_replace(',',' ',($casesensitive?$tags:mb_convert_case($tags, MB_CASE_LOWER, 'UTF-8'))); | |
45034273 SS |
849 | $searchtags=explode(' ',$t); |
850 | $filtered=array(); | |
851 | foreach($this->links as $l) | |
852 | { | |
2e45fdd8 | 853 | $linktags = explode(' ',($casesensitive?$l['tags']:mb_convert_case($l['tags'], MB_CASE_LOWER, 'UTF-8'))); |
45034273 SS |
854 | if (count(array_intersect($linktags,$searchtags)) == count($searchtags)) |
855 | $filtered[$l['linkdate']] = $l; | |
856 | } | |
857 | krsort($filtered); | |
858 | return $filtered; | |
859 | } | |
860 | ||
ad6c27b7 | 861 | // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125') |
45034273 | 862 | // Sort order is: older articles first. |
ad6c27b7 | 863 | // e.g. print_r($mydb->filterDay('20120125')); |
45034273 SS |
864 | public function filterDay($day) |
865 | { | |
866 | $filtered=array(); | |
867 | foreach($this->links as $l) | |
868 | { | |
869 | if (startsWith($l['linkdate'],$day)) $filtered[$l['linkdate']] = $l; | |
870 | } | |
871 | ksort($filtered); | |
872 | return $filtered; | |
873 | } | |
874 | // Filter by smallHash. | |
875 | // Only 1 article is returned. | |
876 | public function filterSmallHash($smallHash) | |
877 | { | |
878 | $filtered=array(); | |
879 | foreach($this->links as $l) | |
880 | { | |
881 | if ($smallHash==smallHash($l['linkdate'])) // Yes, this is ugly and slow | |
882 | { | |
883 | $filtered[$l['linkdate']] = $l; | |
884 | return $filtered; | |
885 | } | |
886 | } | |
887 | return $filtered; | |
888 | } | |
889 | ||
890 | // Returns the list of all tags | |
891 | // Output: associative array key=tags, value=0 | |
892 | public function allTags() | |
893 | { | |
894 | $tags=array(); | |
895 | foreach($this->links as $link) | |
896 | foreach(explode(' ',$link['tags']) as $tag) | |
897 | if (!empty($tag)) $tags[$tag]=(empty($tags[$tag]) ? 1 : $tags[$tag]+1); | |
898 | arsort($tags); // Sort tags by usage (most used tag first) | |
899 | return $tags; | |
900 | } | |
bb8f712d | 901 | |
45034273 SS |
902 | // Returns the list of days containing articles (oldest first) |
903 | // Output: An array containing days (in format YYYYMMDD). | |
904 | public function days() | |
905 | { | |
906 | $linkdays=array(); | |
907 | foreach(array_keys($this->links) as $day) | |
908 | { | |
909 | $linkdays[substr($day,0,8)]=0; | |
910 | } | |
911 | $linkdays=array_keys($linkdays); | |
912 | sort($linkdays); | |
913 | return $linkdays; | |
914 | } | |
915 | } | |
916 | ||
917 | // ------------------------------------------------------------------------------------------ | |
ad6c27b7 | 918 | // Output the last N links in RSS 2.0 format. |
45034273 SS |
919 | function showRSS() |
920 | { | |
921 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
922 | ||
2abd3905 | 923 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 924 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks |
ed5b38dd FE |
925 | // Also enabled through a config option |
926 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
2abd3905 | 927 | |
45034273 SS |
928 | // Cache system |
929 | $query = $_SERVER["QUERY_STRING"]; | |
930 | $cache = new pageCache(pageUrl(),startsWith($query,'do=rss') && !isLoggedIn()); | |
931 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
932 | ||
933 | // If cached was not found (or not usable), then read the database and build the response: | |
ad6c27b7 | 934 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if user it not logged in). |
45034273 | 935 | |
ad6c27b7 | 936 | // Optionally filter the results: |
45034273 SS |
937 | $linksToDisplay=array(); |
938 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
939 | elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
940 | else $linksToDisplay = $LINKSDB; | |
c677013b SS |
941 | $nblinksToDisplay = 50; // Number of links to display. |
942 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 943 | { |
c677013b SS |
944 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
945 | } | |
45034273 SS |
946 | |
947 | $pageaddr=htmlspecialchars(indexUrl()); | |
948 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; | |
949 | echo '<channel><title>'.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>'; | |
950 | echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n"; | |
951 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
952 | { | |
953 | echo '<!-- PubSubHubbub Discovery -->'; | |
954 | echo '<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />'; | |
955 | echo '<link rel="self" href="'.htmlspecialchars($pageaddr).'?do=rss" xmlns="http://www.w3.org/2005/Atom" />'; | |
956 | echo '<!-- End Of PubSubHubbub Discovery -->'; | |
957 | } | |
958 | $i=0; | |
959 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 960 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
961 | { |
962 | $link = $linksToDisplay[$keys[$i]]; | |
963 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
964 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
965 | $absurl = htmlspecialchars($link['url']); | |
966 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute | |
2abd3905 | 967 | if ($usepermalinks===true) |
ed5b38dd | 968 | echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>'; |
2abd3905 | 969 | else |
3e0ef647 | 970 | echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>'; |
45034273 SS |
971 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>\n"; |
972 | if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification) | |
973 | { | |
974 | foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.htmlspecialchars($pageaddr).'">'.htmlspecialchars($tag).'</category>'."\n"; } | |
975 | } | |
2abd3905 SS |
976 | |
977 | // Add permalink in description | |
978 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
979 | // If user wants permalinks first, put the final link in description | |
980 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
981 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
982 | echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))).$descriptionlink.']]></description>'."\n</item>\n"; | |
45034273 SS |
983 | $i++; |
984 | } | |
53da2017 | 985 | echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->'; |
45034273 SS |
986 | |
987 | $cache->cache(ob_get_contents()); | |
988 | ob_end_flush(); | |
989 | exit; | |
990 | } | |
991 | ||
992 | // ------------------------------------------------------------------------------------------ | |
ad6c27b7 | 993 | // Output the last N links in ATOM format. |
45034273 SS |
994 | function showATOM() |
995 | { | |
996 | header('Content-Type: application/atom+xml; charset=utf-8'); | |
997 | ||
2abd3905 | 998 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 999 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks |
ed5b38dd | 1000 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; |
2abd3905 | 1001 | |
45034273 SS |
1002 | // Cache system |
1003 | $query = $_SERVER["QUERY_STRING"]; | |
1004 | $cache = new pageCache(pageUrl(),startsWith($query,'do=atom') && !isLoggedIn()); | |
1005 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
1006 | // If cached was not found (or not usable), then read the database and build the response: | |
1007 | ||
1008 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). | |
1009 | ||
1010 | ||
ad6c27b7 | 1011 | // Optionally filter the results: |
45034273 SS |
1012 | $linksToDisplay=array(); |
1013 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
1014 | elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1015 | else $linksToDisplay = $LINKSDB; | |
c677013b SS |
1016 | $nblinksToDisplay = 50; // Number of links to display. |
1017 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 1018 | { |
c677013b SS |
1019 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
1020 | } | |
45034273 SS |
1021 | |
1022 | $pageaddr=htmlspecialchars(indexUrl()); | |
1023 | $latestDate = ''; | |
1024 | $entries=''; | |
1025 | $i=0; | |
1026 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 1027 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
1028 | { |
1029 | $link = $linksToDisplay[$keys[$i]]; | |
1030 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
1031 | $iso8601date = linkdate2iso8601($link['linkdate']); | |
1032 | $latestDate = max($latestDate,$iso8601date); | |
1033 | $absurl = htmlspecialchars($link['url']); | |
1034 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute | |
2abd3905 SS |
1035 | $entries.='<entry><title>'.htmlspecialchars($link['title']).'</title>'; |
1036 | if ($usepermalinks===true) | |
1037 | $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>'; | |
1038 | else | |
1039 | $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>'; | |
45034273 | 1040 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.htmlspecialchars($iso8601date).'</updated>'; |
2abd3905 SS |
1041 | |
1042 | // Add permalink in description | |
1043 | $descriptionlink = htmlspecialchars('(<a href="'.$guid.'">Permalink</a>)'); | |
1044 | // If user wants permalinks first, put the final link in description | |
1045 | if ($usepermalinks===true) $descriptionlink = htmlspecialchars('(<a href="'.$absurl.'">Link</a>)'); | |
1046 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
1047 | ||
1048 | $entries.='<content type="html">'.htmlspecialchars(nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))))).$descriptionlink."</content>\n"; | |
45034273 SS |
1049 | if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) |
1050 | { | |
1051 | foreach(explode(' ',$link['tags']) as $tag) | |
1052 | { $entries.='<category scheme="'.htmlspecialchars($pageaddr,ENT_QUOTES).'" term="'.htmlspecialchars($tag,ENT_QUOTES).'" />'."\n"; } | |
1053 | } | |
1054 | $entries.="</entry>\n"; | |
1055 | $i++; | |
1056 | } | |
1057 | $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">'; | |
1058 | $feed.='<title>'.htmlspecialchars($GLOBALS['title']).'</title>'; | |
1059 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.htmlspecialchars($latestDate).'</updated>'; | |
1060 | $feed.='<link rel="self" href="'.htmlspecialchars(serverUrl().$_SERVER["REQUEST_URI"]).'" />'; | |
1061 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
1062 | { | |
1063 | $feed.='<!-- PubSubHubbub Discovery -->'; | |
1064 | $feed.='<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" />'; | |
1065 | $feed.='<!-- End Of PubSubHubbub Discovery -->'; | |
1066 | } | |
1067 | $feed.='<author><name>'.htmlspecialchars($pageaddr).'</name><uri>'.htmlspecialchars($pageaddr).'</uri></author>'; | |
1068 | $feed.='<id>'.htmlspecialchars($pageaddr).'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. | |
1069 | $feed.=$entries; | |
53da2017 | 1070 | $feed.='</feed><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->'; |
45034273 | 1071 | echo $feed; |
bb8f712d | 1072 | |
45034273 SS |
1073 | $cache->cache(ob_get_contents()); |
1074 | ob_end_flush(); | |
1075 | exit; | |
1076 | } | |
1077 | ||
1078 | // ------------------------------------------------------------------------------------------ | |
1079 | // Daily RSS feed: 1 RSS entry per day giving all the links on that day. | |
1080 | // Gives the last 7 days (which have links). | |
1081 | // This RSS feed cannot be filtered. | |
1082 | function showDailyRSS() | |
1083 | { | |
1084 | // Cache system | |
1085 | $query = $_SERVER["QUERY_STRING"]; | |
1086 | $cache = new pageCache(pageUrl(),startsWith($query,'do=dailyrss') && !isLoggedIn()); | |
1087 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
1088 | // If cached was not found (or not usable), then read the database and build the response: | |
1089 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). | |
bb8f712d | 1090 | |
45034273 SS |
1091 | /* Some Shaarlies may have very few links, so we need to look |
1092 | back in time (rsort()) until we have enough days ($nb_of_days). | |
1093 | */ | |
bb8f712d | 1094 | $linkdates=array(); foreach($LINKSDB as $linkdate=>$value) { $linkdates[]=$linkdate; } |
45034273 SS |
1095 | rsort($linkdates); |
1096 | $nb_of_days=7; // We take 7 days. | |
1097 | $today=Date('Ymd'); | |
1098 | $days=array(); | |
1099 | foreach($linkdates as $linkdate) | |
1100 | { | |
1101 | $day=substr($linkdate,0,8); // Extract day (without time) | |
1102 | if (strcmp($day,$today)<0) | |
1103 | { | |
1104 | if (empty($days[$day])) $days[$day]=array(); | |
1105 | $days[$day][]=$linkdate; | |
1106 | } | |
ad6c27b7 | 1107 | if (count($days)>$nb_of_days) break; // Have we collected enough days? |
45034273 | 1108 | } |
bb8f712d | 1109 | |
45034273 SS |
1110 | // Build the RSS feed. |
1111 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
1112 | $pageaddr=htmlspecialchars(indexUrl()); | |
1113 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">'; | |
1114 | echo '<channel><title>Daily - '.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>'; | |
1115 | echo '<description>Daily shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n"; | |
bb8f712d | 1116 | |
45034273 SS |
1117 | foreach($days as $day=>$linkdates) // For each day. |
1118 | { | |
1119 | $daydate = utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000'))); // Full text date | |
1120 | $rfc822date = linkdate2rfc822($day.'_000000'); | |
1121 | $absurl=htmlspecialchars(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. | |
1122 | echo '<item><title>'.htmlspecialchars($GLOBALS['title'].' - '.$daydate).'</title><guid>'.$absurl.'</guid><link>'.$absurl.'</link>'; | |
1123 | echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>"; | |
bb8f712d | 1124 | |
45034273 SS |
1125 | // Build the HTML body of this RSS entry. |
1126 | $html=''; | |
1127 | $href=''; | |
1128 | $links=array(); | |
1129 | // We pre-format some fields for proper output. | |
1130 | foreach($linkdates as $linkdate) | |
1131 | { | |
1132 | $l = $LINKSDB[$linkdate]; | |
1133 | $l['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($l['description'])))); | |
bb8f712d | 1134 | $l['thumbnail'] = thumbnail($l['url']); |
a5752e77 | 1135 | $l['timestamp'] = linkdate2timestamp($l['linkdate']); |
45034273 | 1136 | if (startsWith($l['url'],'?')) $l['url']=indexUrl().$l['url']; // make permalink URL absolute |
bb8f712d | 1137 | $links[$linkdate]=$l; |
45034273 SS |
1138 | } |
1139 | // Then build the HTML for this day: | |
bb8f712d | 1140 | $tpl = new RainTPL; |
45034273 SS |
1141 | $tpl->assign('links',$links); |
1142 | $html = $tpl->draw('dailyrss',$return_string=true); | |
1143 | echo "\n"; | |
1144 | echo '<description><![CDATA['.$html.']]></description>'."\n</item>\n\n"; | |
1145 | ||
bb8f712d | 1146 | } |
53da2017 | 1147 | echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->'; |
bb8f712d | 1148 | |
45034273 SS |
1149 | $cache->cache(ob_get_contents()); |
1150 | ob_end_flush(); | |
1151 | exit; | |
1152 | } | |
1153 | ||
1154 | // "Daily" page. | |
1155 | function showDaily() | |
1156 | { | |
1157 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). | |
1158 | ||
1159 | ||
1160 | $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. | |
1161 | if (isset($_GET['day'])) $day=$_GET['day']; | |
bb8f712d | 1162 | |
45034273 SS |
1163 | $days = $LINKSDB->days(); |
1164 | $i = array_search($day,$days); | |
1165 | if ($i==false) { $i=count($days)-1; $day=$days[$i]; } | |
bb8f712d KT |
1166 | $previousday=''; |
1167 | $nextday=''; | |
45034273 SS |
1168 | if ($i!==false) |
1169 | { | |
1170 | if ($i>1) $previousday=$days[$i-1]; | |
1171 | if ($i<count($days)-1) $nextday=$days[$i+1]; | |
1172 | } | |
1173 | ||
1174 | $linksToDisplay=$LINKSDB->filterDay($day); | |
1175 | // We pre-format some fields for proper output. | |
1176 | foreach($linksToDisplay as $key=>$link) | |
1177 | { | |
dd62b9ba SS |
1178 | $taglist = explode(' ',$link['tags']); |
1179 | uasort($taglist, 'strcasecmp'); | |
1180 | $linksToDisplay[$key]['taglist']=$taglist; | |
45034273 | 1181 | $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))); |
bb8f712d | 1182 | $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); |
a5752e77 | 1183 | $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); |
45034273 | 1184 | } |
bb8f712d | 1185 | |
45034273 | 1186 | /* We need to spread the articles on 3 columns. |
ad6c27b7 | 1187 | I did not want to use a JavaScript lib like http://masonry.desandro.com/ |
bb8f712d | 1188 | so I manually spread entries with a simple method: I roughly evaluate the |
45034273 SS |
1189 | height of a div according to title and description length. |
1190 | */ | |
1191 | $columns=array(array(),array(),array()); // Entries to display, for each column. | |
1192 | $fill=array(0,0,0); // Rough estimate of columns fill. | |
1193 | foreach($linksToDisplay as $key=>$link) | |
1194 | { | |
1195 | // Roughly estimate length of entry (by counting characters) | |
1196 | // Title: 30 chars = 1 line. 1 line is 30 pixels height. | |
1197 | // Description: 836 characters gives roughly 342 pixel height. | |
ad6c27b7 | 1198 | // This is not perfect, but it's usually OK. |
45034273 SS |
1199 | $length=strlen($link['title'])+(342*strlen($link['description']))/836; |
1200 | if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. | |
1201 | // Then put in column which is the less filled: | |
1202 | $smallest=min($fill); // find smallest value in array. | |
1203 | $index=array_search($smallest,$fill); // find index of this smallest value. | |
1204 | array_push($columns[$index],$link); // Put entry in this column. | |
1205 | $fill[$index]+=$length; | |
1206 | } | |
1207 | $PAGE = new pageBuilder; | |
1208 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1209 | $PAGE->assign('linkcount',count($LINKSDB)); | |
cae64e52 | 1210 | $PAGE->assign('cols', $columns); |
45034273 SS |
1211 | $PAGE->assign('day',utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000')))); |
1212 | $PAGE->assign('previousday',$previousday); | |
bb8f712d | 1213 | $PAGE->assign('nextday',$nextday); |
45034273 SS |
1214 | $PAGE->renderPage('daily'); |
1215 | exit; | |
1216 | } | |
1217 | ||
1218 | ||
1219 | // ------------------------------------------------------------------------------------------ | |
1220 | // Render HTML page (according to URL parameters and user rights) | |
1221 | function renderPage() | |
1222 | { | |
1223 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). | |
1224 | ||
1225 | // -------- Display login form. | |
1226 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) | |
1227 | { | |
1228 | if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli | |
1229 | $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. | |
1230 | $PAGE = new pageBuilder; | |
1231 | $PAGE->assign('token',$token); | |
1232 | $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER']:'')); | |
1233 | $PAGE->renderPage('loginform'); | |
1234 | exit; | |
1235 | } | |
1236 | // -------- User wants to logout. | |
1237 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
1238 | { | |
1239 | invalidateCaches(); | |
1240 | logout(); | |
1241 | header('Location: ?'); | |
1242 | exit; | |
1243 | } | |
1244 | ||
1245 | // -------- Picture wall | |
1246 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) | |
1247 | { | |
ad6c27b7 | 1248 | // Optionally filter the results: |
45034273 SS |
1249 | $links=array(); |
1250 | if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); | |
1251 | elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1252 | else $links = $LINKSDB; | |
1253 | $body=''; | |
1254 | $linksToDisplay=array(); | |
1255 | ||
1256 | // Get only links which have a thumbnail. | |
1257 | foreach($links as $link) | |
1258 | { | |
1259 | $permalink='?'.htmlspecialchars(smallhash($link['linkdate']),ENT_QUOTES); | |
1260 | $thumb=lazyThumbnail($link['url'],$permalink); | |
1261 | if ($thumb!='') // Only output links which have a thumbnail. | |
1262 | { | |
1263 | $link['thumbnail']=$thumb; // Thumbnail HTML code. | |
45034273 SS |
1264 | $linksToDisplay[]=$link; // Add to array. |
1265 | } | |
1266 | } | |
1267 | $PAGE = new pageBuilder; | |
1268 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1269 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1270 | $PAGE->renderPage('picwall'); | |
1271 | exit; | |
1272 | } | |
1273 | ||
1274 | // -------- Tag cloud | |
1275 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) | |
1276 | { | |
1277 | $tags= $LINKSDB->allTags(); | |
1278 | // We sort tags alphabetically, then choose a font size according to count. | |
1279 | // First, find max value. | |
1280 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
1281 | ksort($tags); | |
1282 | $tagList=array(); | |
1283 | foreach($tags as $key=>$value) | |
1e3b2740 | 1284 | // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes. |
45034273 | 1285 | { |
1e3b2740 | 1286 | $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); |
45034273 SS |
1287 | } |
1288 | $PAGE = new pageBuilder; | |
1289 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1290 | $PAGE->assign('tags',$tagList); | |
1291 | $PAGE->renderPage('tagcloud'); | |
bb8f712d | 1292 | exit; |
45034273 SS |
1293 | } |
1294 | ||
1295 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
1296 | if (isset($_GET['addtag'])) | |
1297 | { | |
1298 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
1299 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER | |
1300 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
732e683b FE |
1301 | |
1302 | // Check if this tag is already in the search query and ignore it if it is. | |
1303 | // Each tag is always separated by a space | |
1304 | $current_tags = explode(' ', $params['searchtags']); | |
1305 | $addtag = true; | |
1306 | foreach ($current_tags as $value) { | |
1307 | if ($value === $_GET['addtag']) { | |
1308 | $addtag = false; | |
1309 | break; | |
1310 | } | |
1311 | } | |
1312 | // Append the tag if necessary | |
1313 | if (empty($params['searchtags'])) { | |
1314 | $params['searchtags'] = trim($_GET['addtag']); | |
1315 | } | |
1316 | else if ($addtag) { | |
1317 | $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); | |
1318 | } | |
1319 | ||
45034273 SS |
1320 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1321 | header('Location: ?'.http_build_query($params)); | |
1322 | exit; | |
1323 | } | |
1324 | ||
1325 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
1326 | if (isset($_GET['removetag'])) | |
1327 | { | |
1328 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. | |
1329 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?'); exit; } // In case browser does not send HTTP_REFERER | |
1330 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
1331 | if (isset($params['searchtags'])) | |
1332 | { | |
1333 | $tags = explode(' ',$params['searchtags']); | |
1334 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
1335 | if (count($tags)==0) unset($params['searchtags']); else $params['searchtags'] = implode(' ',$tags); | |
1336 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) | |
1337 | } | |
1338 | header('Location: ?'.http_build_query($params)); | |
1339 | exit; | |
1340 | } | |
1341 | ||
1342 | // -------- User wants to change the number of links per page (linksperpage=...) | |
1343 | if (isset($_GET['linksperpage'])) | |
1344 | { | |
1345 | if (is_numeric($_GET['linksperpage'])) { $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); } | |
ad6c27b7 | 1346 | // Make sure the referrer is Shaarli itself. |
feebc6d4 | 1347 | $referer = '?'; |
f6a6ca0a | 1348 | if (!empty($_SERVER['HTTP_REFERER']) && strcmp(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_HOST),$_SERVER['HTTP_HOST'])==0) |
feebc6d4 SS |
1349 | $referer = $_SERVER['HTTP_REFERER']; |
1350 | header('Location: '.$referer); | |
45034273 SS |
1351 | exit; |
1352 | } | |
bb8f712d | 1353 | |
45034273 SS |
1354 | // -------- User wants to see only private links (toggle) |
1355 | if (isset($_GET['privateonly'])) | |
1356 | { | |
1357 | if (empty($_SESSION['privateonly'])) | |
1358 | { | |
1359 | $_SESSION['privateonly']=1; // See only private links | |
1360 | } | |
1361 | else | |
1362 | { | |
1363 | unset($_SESSION['privateonly']); // See all links | |
1364 | } | |
ad6c27b7 | 1365 | // Make sure the referrer is Shaarli itself. |
feebc6d4 | 1366 | $referer = '?'; |
f6a6ca0a | 1367 | if (!empty($_SERVER['HTTP_REFERER']) && strcmp(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_HOST),$_SERVER['HTTP_HOST'])==0) |
feebc6d4 SS |
1368 | $referer = $_SERVER['HTTP_REFERER']; |
1369 | header('Location: '.$referer); | |
45034273 SS |
1370 | exit; |
1371 | } | |
1372 | ||
1373 | // -------- Handle other actions allowed for non-logged in users: | |
1374 | if (!isLoggedIn()) | |
1375 | { | |
ad6c27b7 | 1376 | // User tries to post new link but is not logged in: |
45034273 SS |
1377 | // Show login screen, then redirect to ?post=... |
1378 | if (isset($_GET['post'])) | |
1379 | { | |
a1795ddc | 1380 | header('Location: ?do=login&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link. |
45034273 SS |
1381 | exit; |
1382 | } | |
aedc912d FE |
1383 | |
1384 | // Same case as above except that user tried to access ?do=addlink without being logged in | |
1385 | // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. | |
1386 | if (isset($_GET['do']) && $_GET['do'] === 'addlink') { | |
1387 | header('Location: ?do=login&post='); | |
1388 | exit; | |
1389 | } | |
1390 | ||
45034273 SS |
1391 | $PAGE = new pageBuilder; |
1392 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1393 | $PAGE->renderPage('linklist'); | |
ad6c27b7 | 1394 | exit; // Never remove this one! All operations below are reserved for logged in user. |
45034273 SS |
1395 | } |
1396 | ||
1397 | // -------- All other functions are reserved for the registered user: | |
1398 | ||
1399 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
1400 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
1401 | { | |
1402 | $PAGE = new pageBuilder; | |
1403 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1404 | $PAGE->assign('pageabsaddr',indexUrl()); | |
1405 | $PAGE->renderPage('tools'); | |
1406 | exit; | |
1407 | } | |
1408 | ||
1409 | // -------- User wants to change his/her password. | |
1410 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) | |
1411 | { | |
1412 | if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); | |
1413 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
1414 | { | |
ad6c27b7 | 1415 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1416 | |
1417 | // Make sure old password is correct. | |
1418 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
fe16b01e | 1419 | if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } |
45034273 SS |
1420 | // Save new password |
1421 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1422 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
1423 | writeConfig(); | |
fe16b01e | 1424 | echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1425 | exit; |
1426 | } | |
1427 | else // show the change password form. | |
1428 | { | |
1429 | $PAGE = new pageBuilder; | |
1430 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1431 | $PAGE->assign('token',getToken()); | |
1432 | $PAGE->renderPage('changepassword'); | |
1433 | exit; | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | // -------- User wants to change configuration | |
1438 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) | |
1439 | { | |
1440 | if (!empty($_POST['title']) ) | |
1441 | { | |
ad6c27b7 | 1442 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1443 | $tz = 'UTC'; |
1444 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
1445 | if (isTZvalid($_POST['continent'],$_POST['city'])) | |
1446 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
1447 | $GLOBALS['timezone'] = $tz; | |
1448 | $GLOBALS['title']=$_POST['title']; | |
ebb2880d | 1449 | $GLOBALS['titleLink']=$_POST['titleLink']; |
45034273 SS |
1450 | $GLOBALS['redirector']=$_POST['redirector']; |
1451 | $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); | |
858c5c2b | 1452 | $GLOBALS['disablejquery']=!empty($_POST['disablejquery']); |
bb8f712d | 1453 | $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); |
ed5b38dd | 1454 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); |
329e0768 | 1455 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
45034273 | 1456 | writeConfig(); |
fe16b01e | 1457 | echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1458 | exit; |
1459 | } | |
1460 | else // Show the configuration form. | |
1461 | { | |
1462 | $PAGE = new pageBuilder; | |
1463 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1464 | $PAGE->assign('token',getToken()); | |
1465 | $PAGE->assign('title',htmlspecialchars( empty($GLOBALS['title']) ? '' : $GLOBALS['title'] , ENT_QUOTES)); | |
1466 | $PAGE->assign('redirector',htmlspecialchars( empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] , ENT_QUOTES)); | |
1467 | list($timezone_form,$timezone_js) = templateTZform($GLOBALS['timezone']); | |
ad6c27b7 | 1468 | $PAGE->assign('timezone_form',$timezone_form); // FIXME: Put entire tz form generation in template? |
45034273 SS |
1469 | $PAGE->assign('timezone_js',$timezone_js); |
1470 | $PAGE->renderPage('configure'); | |
1471 | exit; | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | // -------- User wants to rename a tag or delete it | |
1476 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) | |
1477 | { | |
1478 | if (empty($_POST['fromtag'])) | |
1479 | { | |
1480 | $PAGE = new pageBuilder; | |
1481 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1482 | $PAGE->assign('token',getToken()); | |
bdd1715b | 1483 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1484 | $PAGE->renderPage('changetag'); |
1485 | exit; | |
1486 | } | |
1487 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1488 | ||
1489 | // Delete a tag: | |
1490 | if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) | |
1491 | { | |
1492 | $needle=trim($_POST['fromtag']); | |
ad6c27b7 | 1493 | $linksToAlter = $LINKSDB->filterTags($needle,true); // True for case-sensitive tag search. |
45034273 SS |
1494 | foreach($linksToAlter as $key=>$value) |
1495 | { | |
1496 | $tags = explode(' ',trim($value['tags'])); | |
1497 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
1498 | $value['tags']=trim(implode(' ',$tags)); | |
1499 | $LINKSDB[$key]=$value; | |
1500 | } | |
ad6c27b7 | 1501 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1502 | echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; |
45034273 SS |
1503 | exit; |
1504 | } | |
1505 | ||
1506 | // Rename a tag: | |
1507 | if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) | |
1508 | { | |
1509 | $needle=trim($_POST['fromtag']); | |
1510 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
1511 | foreach($linksToAlter as $key=>$value) | |
1512 | { | |
1513 | $tags = explode(' ',trim($value['tags'])); | |
ad6c27b7 | 1514 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. |
45034273 SS |
1515 | $value['tags']=trim(implode(' ',$tags)); |
1516 | $LINKSDB[$key]=$value; | |
1517 | } | |
ad6c27b7 | 1518 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1519 | echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; |
45034273 SS |
1520 | exit; |
1521 | } | |
1522 | } | |
1523 | ||
ad6c27b7 | 1524 | // -------- User wants to add a link without using the bookmarklet: Show form. |
45034273 SS |
1525 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) |
1526 | { | |
1527 | $PAGE = new pageBuilder; | |
1528 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1529 | $PAGE->renderPage('addlink'); | |
1530 | exit; | |
1531 | } | |
1532 | ||
1533 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
1534 | if (isset($_POST['save_edit'])) | |
1535 | { | |
ad6c27b7 | 1536 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1537 | $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. |
1538 | $linkdate=$_POST['lf_linkdate']; | |
feebc6d4 | 1539 | $url = trim($_POST['lf_url']); |
f81139c9 | 1540 | if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:')) |
feebc6d4 SS |
1541 | $url = 'http://'.$url; |
1542 | $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
45034273 SS |
1543 | 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags)); |
1544 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. | |
1545 | $LINKSDB[$linkdate] = $link; | |
ad6c27b7 | 1546 | $LINKSDB->savedb(); // Save to disk. |
45034273 SS |
1547 | pubsubhub(); |
1548 | ||
1549 | // If we are called from the bookmarklet, we must close the popup: | |
fe16b01e | 1550 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; } |
45034273 | 1551 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
b342b2a4 | 1552 | $returnurl .= '#'.smallHash($linkdate); // Scroll to the link which has been edited. |
35c2c4db | 1553 | if (strstr($returnurl, "do=addlink")) { $returnurl = '?'; } //if we come from ?do=addlink, set returnurl to homepage instead |
45034273 SS |
1554 | header('Location: '.$returnurl); // After saving the link, redirect to the page the user was on. |
1555 | exit; | |
1556 | } | |
1557 | ||
1558 | // -------- User clicked the "Cancel" button when editing a link. | |
1559 | if (isset($_POST['cancel_edit'])) | |
1560 | { | |
ad6c27b7 | 1561 | // If we are called from the bookmarklet, we must close the popup: |
fe16b01e | 1562 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; } |
45034273 | 1563 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
b342b2a4 | 1564 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. |
45034273 SS |
1565 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. |
1566 | exit; | |
1567 | } | |
1568 | ||
ad6c27b7 | 1569 | // -------- User clicked the "Delete" button when editing a link: Delete link from database. |
45034273 SS |
1570 | if (isset($_POST['delete_link'])) |
1571 | { | |
1572 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1573 | // We do not need to ask for confirmation: | |
ad6c27b7 | 1574 | // - confirmation is handled by JavaScript |
45034273 SS |
1575 | // - we are protected from XSRF by the token. |
1576 | $linkdate=$_POST['lf_linkdate']; | |
1577 | unset($LINKSDB[$linkdate]); | |
1578 | $LINKSDB->savedb(); // save to disk | |
1579 | ||
1580 | // If we are called from the bookmarklet, we must close the popup: | |
fe16b01e | 1581 | if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; } |
d528433d | 1582 | // Pick where we're going to redirect |
1583 | // ============================================================= | |
1584 | // Basically, we can't redirect to where we were previously if it was a permalink | |
1585 | // or an edit_link, because it would 404. | |
1586 | // Cases: | |
1587 | // - / : nothing in $_GET, redirect to self | |
1588 | // - /?page : redirect to self | |
1589 | // - /?searchterm : redirect to self (there might be other links) | |
1590 | // - /?searchtags : redirect to self | |
1591 | // - /permalink : redirect to / (the link does not exist anymore) | |
1592 | // - /?edit_link : redirect to / (the link does not exist anymore) | |
1593 | // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self | |
1594 | // redirect is not satisfied, and only then redirect to / | |
1595 | $location = "?"; | |
1596 | // Self redirection | |
1597 | if (count($_GET) == 0 || | |
1598 | isset($_GET['page']) || | |
1599 | isset($_GET['searchterm']) || | |
1600 | isset($_GET['searchtags'])) { | |
1601 | ||
1602 | if (isset($_POST['returnurl'])) { | |
1603 | $location = $_POST['returnurl']; // Handle redirects given by the form | |
1604 | } | |
1605 | ||
1606 | if ($location === "?" && | |
1607 | isset($_SERVER['HTTP_REFERER'])) { // Handle HTTP_REFERER in case we're not coming from the same place. | |
1608 | $location = $_SERVER['HTTP_REFERER']; | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | header('Location: ' . $location); // After deleting the link, redirect to appropriate location | |
45034273 SS |
1613 | exit; |
1614 | } | |
1615 | ||
1616 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
1617 | if (isset($_GET['edit_link'])) | |
1618 | { | |
1619 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
1620 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
1621 | $PAGE = new pageBuilder; | |
1622 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1623 | $PAGE->assign('link',$link); | |
1624 | $PAGE->assign('link_is_new',false); | |
1625 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1626 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); | |
bdd1715b | 1627 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1628 | $PAGE->renderPage('editlink'); |
1629 | exit; | |
1630 | } | |
1631 | ||
1632 | // -------- User want to post a new link: Display link edit form. | |
1633 | if (isset($_GET['post'])) | |
1634 | { | |
1635 | $url=$_GET['post']; | |
1636 | ||
403a1994 | 1637 | |
ad2a397c | 1638 | // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook... |
baf5cbf2 | 1639 | $annoyingpatterns = array('/[\?&]utm_source=[^&]*/', '/[\?&]utm_campaign=[^&]*/', '/[\?&]utm_medium=[^&]*/', '/#xtor=RSS-[^&]*/', '/[\?&]fb_[^&]*/', '/[\?&]__scoop[^&]*/', '/#tk\.rss_all\?/', '/[\?&]action_ref_map=[^&]*/', '/[\?&]action_type_map=[^&]*/', '/[\?&]action_object_map=[^&]*/'); |
ad2a397c | 1640 | foreach($annoyingpatterns as $pattern) |
1641 | { | |
403a1994 | 1642 | $url = preg_replace($pattern, "", $url); |
ad2a397c | 1643 | } |
45034273 SS |
1644 | |
1645 | $link_is_new = false; | |
1646 | $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link) | |
1647 | if (!$link) | |
1648 | { | |
1649 | $link_is_new = true; // This is a new link | |
1650 | $linkdate = strval(date('Ymd_His')); | |
1651 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). | |
7b2186a6 | 1652 | $description = (empty($_GET['description']) ? '' : $_GET['description']); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] |
3fac0a52 | 1653 | $tags = (empty($_GET['tags']) ? '' : $_GET['tags'] ); // Get tags if it was provided in URL |
732e683b | 1654 | $private = (!empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0); // Get private if it was provided in URL |
45034273 | 1655 | if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; |
ad6c27b7 | 1656 | // If this is an HTTP link, we try go get the page to extract the title (otherwise we will to straight to the edit form.) |
45034273 SS |
1657 | if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') |
1658 | { | |
1659 | list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. | |
1660 | // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html | |
002ef0e5 SS |
1661 | if (strpos($status,'200 OK')!==false) |
1662 | { | |
1663 | // Look for charset in html header. | |
1664 | preg_match('#<meta .*charset=.*>#Usi', $data, $meta); | |
732e683b | 1665 | |
002ef0e5 SS |
1666 | // If found, extract encoding. |
1667 | if (!empty($meta[0])) | |
1668 | { | |
1669 | // Get encoding specified in header. | |
1670 | preg_match('#charset="?(.*)"#si', $meta[0], $enc); | |
1671 | // If charset not found, use utf-8. | |
1672 | $html_charset = (!empty($enc[1])) ? strtolower($enc[1]) : 'utf-8'; | |
1673 | } | |
1674 | else { $html_charset = 'utf-8'; } | |
732e683b | 1675 | |
002ef0e5 SS |
1676 | // Extract title |
1677 | $title = html_extract_title($data); | |
1678 | if (!empty($title)) | |
1679 | { | |
1680 | // Re-encode title in utf-8 if necessary. | |
1681 | $title = ($html_charset == 'iso-8859-1') ? utf8_encode($title) : $title; | |
1682 | } | |
1683 | } | |
45034273 | 1684 | } |
27646ca5 | 1685 | if ($url=='') // In case of empty URL, this is just a text (with a link that points to itself) |
1686 | { | |
1687 | $url='?'.smallHash($linkdate); | |
1688 | $title='Note: '; | |
1689 | } | |
3fac0a52 | 1690 | $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>$private); |
45034273 SS |
1691 | } |
1692 | ||
1693 | $PAGE = new pageBuilder; | |
1694 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1695 | $PAGE->assign('link',$link); | |
1696 | $PAGE->assign('link_is_new',$link_is_new); | |
1697 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1698 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); | |
bdd1715b | 1699 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1700 | $PAGE->renderPage('editlink'); |
1701 | exit; | |
1702 | } | |
1703 | ||
1704 | // -------- Export as Netscape Bookmarks HTML file. | |
1705 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export')) | |
1706 | { | |
1707 | if (empty($_GET['what'])) | |
1708 | { | |
1709 | $PAGE = new pageBuilder; | |
1710 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1711 | $PAGE->renderPage('export'); | |
1712 | exit; | |
1713 | } | |
1714 | $exportWhat=$_GET['what']; | |
ad6c27b7 | 1715 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); |
45034273 SS |
1716 | |
1717 | header('Content-Type: text/html; charset=utf-8'); | |
1718 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); | |
1719 | $currentdate=date('Y/m/d H:i:s'); | |
1720 | echo <<<HTML | |
1721 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
1722 | <!-- This is an automatically generated file. | |
1723 | It will be read and overwritten. | |
1724 | DO NOT EDIT! --> | |
1725 | <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} --> | |
1726 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
1727 | <TITLE>Bookmarks</TITLE> | |
1728 | <H1>Bookmarks</H1> | |
1729 | HTML; | |
1730 | foreach($LINKSDB as $link) | |
1731 | { | |
1732 | if ($exportWhat=='all' || | |
1733 | ($exportWhat=='private' && $link['private']!=0) || | |
1734 | ($exportWhat=='public' && $link['private']==0)) | |
1735 | { | |
1736 | echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; | |
1737 | if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"'; | |
1738 | echo '>'.htmlspecialchars($link['title'])."</A>\n"; | |
1739 | if ($link['description']!='') echo '<DD>'.htmlspecialchars($link['description'])."\n"; | |
1740 | } | |
1741 | } | |
1742 | exit; | |
1743 | } | |
1744 | ||
1745 | // -------- User is uploading a file for import | |
1746 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1747 | { | |
1748 | // If file is too big, some form field may be missing. | |
1749 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1750 | { | |
1751 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
fe16b01e | 1752 | echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>'; |
45034273 SS |
1753 | exit; |
1754 | } | |
1755 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1756 | importFile(); | |
1757 | exit; | |
1758 | } | |
1759 | ||
1760 | // -------- Show upload/import dialog: | |
1761 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import')) | |
1762 | { | |
1763 | $PAGE = new pageBuilder; | |
1764 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1765 | $PAGE->assign('token',getToken()); | |
1766 | $PAGE->assign('maxfilesize',getMaxFileSize()); | |
1767 | $PAGE->renderPage('import'); | |
1768 | exit; | |
1769 | } | |
1770 | ||
1771 | // -------- Otherwise, simply display search form and links: | |
1772 | $PAGE = new pageBuilder; | |
1773 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1774 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1775 | $PAGE->renderPage('linklist'); | |
1776 | exit; | |
1777 | } | |
1778 | ||
1779 | // ----------------------------------------------------------------------------------------------- | |
1780 | // Process the import file form. | |
1781 | function importFile() | |
1782 | { | |
1783 | if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } | |
1784 | $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). | |
1785 | $filename=$_FILES['filetoupload']['name']; | |
1786 | $filesize=$_FILES['filetoupload']['size']; | |
1787 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
ad6c27b7 | 1788 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? |
1789 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? | |
45034273 SS |
1790 | $import_count=0; |
1791 | ||
1792 | // Sniff file type: | |
1793 | $type='unknown'; | |
1794 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1795 | ||
1796 | // Then import the bookmarks. | |
1797 | if ($type=='netscape') | |
1798 | { | |
1799 | // This is a standard Netscape-style bookmark file. | |
ad6c27b7 | 1800 | // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. |
45034273 SS |
1801 | foreach(explode('<DT>',$data) as $html) // explode is very fast |
1802 | { | |
1803 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1804 | $d = explode('<DD>',$html); | |
1805 | if (startswith($d[0],'<A ')) | |
1806 | { | |
1807 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) | |
1808 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
1809 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); | |
1810 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
1811 | $raw_add_date=0; | |
1812 | foreach($matches as $m) | |
1813 | { | |
1814 | $attr=$m[1]; $value=$m[2]; | |
1815 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); | |
fc93ae1d AA |
1816 | elseif ($attr=='ADD_DATE') |
1817 | { | |
1818 | $raw_add_date=intval($value); | |
1819 | if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds | |
1820 | } | |
45034273 SS |
1821 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); |
1822 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); | |
1823 | } | |
1824 | if ($link['url']!='') | |
1825 | { | |
1826 | if ($private==1) $link['private']=1; | |
1827 | $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. | |
1828 | if ($dblink==false) | |
1829 | { // Link not in database, let's import it... | |
1830 | if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE | |
1831 | ||
1832 | // Make sure date/time is not already used by another link. | |
1833 | // (Some bookmark files have several different links with the same ADD_DATE) | |
ad6c27b7 | 1834 | // We increment date by 1 second until we find a date which is not used in DB. |
45034273 SS |
1835 | // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) |
1836 | while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. | |
1837 | $link['linkdate']=date('Ymd_His',$raw_add_date); | |
1838 | $LINKSDB[$link['linkdate']] = $link; | |
1839 | $import_count++; | |
1840 | } | |
ad6c27b7 | 1841 | else // Link already present in database. |
45034273 SS |
1842 | { |
1843 | if ($overwrite) | |
1844 | { // If overwrite is required, we import link data, except date/time. | |
1845 | $link['linkdate']=$dblink['linkdate']; | |
1846 | $LINKSDB[$link['linkdate']] = $link; | |
1847 | $import_count++; | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | } | |
1852 | } | |
1853 | } | |
1854 | $LINKSDB->savedb(); | |
1855 | ||
fe16b01e | 1856 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; |
45034273 SS |
1857 | } |
1858 | else | |
1859 | { | |
fe16b01e | 1860 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; |
45034273 SS |
1861 | } |
1862 | } | |
1863 | ||
1864 | // ----------------------------------------------------------------------------------------------- | |
1865 | // Template for the list of links (<div id="linklist">) | |
1866 | // This function fills all the necessary fields in the $PAGE for the template 'linklist.html' | |
1867 | function buildLinkList($PAGE,$LINKSDB) | |
1868 | { | |
1869 | // ---- Filter link database according to parameters | |
1870 | $linksToDisplay=array(); | |
1871 | $search_type=''; | |
1872 | $search_crits=''; | |
1873 | if (isset($_GET['searchterm'])) // Fulltext search | |
1874 | { | |
1875 | $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm'])); | |
1876 | $search_crits=htmlspecialchars(trim($_GET['searchterm'])); | |
1877 | $search_type='fulltext'; | |
1878 | } | |
1879 | elseif (isset($_GET['searchtags'])) // Search by tag | |
1880 | { | |
1881 | $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1882 | $search_crits=explode(' ',trim($_GET['searchtags'])); | |
1883 | $search_type='tags'; | |
1884 | } | |
1885 | elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL | |
1886 | { | |
1887 | $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6)); | |
1888 | if (count($linksToDisplay)==0) | |
1889 | { | |
1890 | header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); | |
1891 | echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.'; | |
ad6c27b7 | 1892 | echo '<br>You would mind <a href="?">clicking here</a>?'; |
45034273 SS |
1893 | exit; |
1894 | } | |
1895 | $search_type='permalink'; | |
1896 | } | |
1897 | else | |
ad6c27b7 | 1898 | $linksToDisplay = $LINKSDB; // Otherwise, display without filtering. |
bb8f712d | 1899 | |
45034273 SS |
1900 | // Option: Show only private links |
1901 | if (!empty($_SESSION['privateonly'])) | |
1902 | { | |
1903 | $tmp = array(); | |
1904 | foreach($linksToDisplay as $linkdate=>$link) | |
1905 | { | |
1906 | if ($link['private']!=0) $tmp[$linkdate]=$link; | |
1907 | } | |
1908 | $linksToDisplay=$tmp; | |
1909 | } | |
1910 | ||
1911 | // ---- Handle paging. | |
ad6c27b7 | 1912 | /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess??? |
45034273 SS |
1913 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " |
1914 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
1915 | */ | |
ad6c27b7 | 1916 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks PHP. |
45034273 SS |
1917 | |
1918 | // If there is only a single link, we change on-the-fly the title of the page. | |
1919 | if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title']; | |
1920 | ||
1921 | // Select articles according to paging. | |
1922 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
1923 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
1924 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
1925 | $page = ( $page<1 ? 1 : $page ); | |
1926 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
1927 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
1928 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
1929 | $linkDisp=array(); // Links to display | |
1930 | while ($i<$end && $i<count($keys)) | |
1931 | { | |
1932 | $link = $linksToDisplay[$keys[$i]]; | |
1933 | $link['description']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))); | |
a5752e77 A |
1934 | $title=$link['title']; |
1935 | $classLi = $i%2!=0 ? '' : 'publicLinkHightLight'; | |
45034273 | 1936 | $link['class'] = ($link['private']==0 ? $classLi : 'private'); |
bec18701 | 1937 | $link['timestamp']=linkdate2timestamp($link['linkdate']); |
a5752e77 A |
1938 | $taglist = explode(' ',$link['tags']); |
1939 | uasort($taglist, 'strcasecmp'); | |
dd62b9ba | 1940 | $link['taglist']=$taglist; |
b47f515a FE |
1941 | |
1942 | if ($link["url"][0] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this. | |
1943 | strlen($link["url"]) === 7) { | |
1944 | $link["url"] = indexUrl() . $link["url"]; | |
1945 | } | |
1946 | ||
45034273 SS |
1947 | $linkDisp[$keys[$i]] = $link; |
1948 | $i++; | |
1949 | } | |
bb8f712d | 1950 | |
45034273 SS |
1951 | // Compute paging navigation |
1952 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
1953 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
1954 | $paging=''; | |
1955 | $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags; | |
1956 | $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags; | |
1957 | ||
bb8f712d KT |
1958 | $token = ''; if (isLoggedIn()) $token=getToken(); |
1959 | ||
45034273 SS |
1960 | // Fill all template fields. |
1961 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1962 | $PAGE->assign('previous_page_url',$previous_page_url); | |
1963 | $PAGE->assign('next_page_url',$next_page_url); | |
1964 | $PAGE->assign('page_current',$page); | |
1965 | $PAGE->assign('page_max',$pagecount); | |
1966 | $PAGE->assign('result_count',count($linksToDisplay)); | |
1967 | $PAGE->assign('search_type',$search_type); | |
bb8f712d | 1968 | $PAGE->assign('search_crits',$search_crits); |
ad6c27b7 | 1969 | $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // Optional redirector URL. |
45034273 SS |
1970 | $PAGE->assign('token',$token); |
1971 | $PAGE->assign('links',$linkDisp); | |
1972 | return; | |
1973 | } | |
1974 | ||
1975 | // Compute the thumbnail for a link. | |
bb8f712d | 1976 | // |
ad6c27b7 | 1977 | // With a link to the original URL. |
45034273 | 1978 | // Understands various services (youtube.com...) |
ad6c27b7 | 1979 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
1980 | // $href = if provided, this URL will be followed instead of $url |
1981 | // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt) | |
1982 | // Some of them may be missing. | |
1983 | // Return an empty array if no thumbnail available. | |
1984 | function computeThumbnail($url,$href=false) | |
1985 | { | |
1986 | if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array(); | |
1987 | if ($href==false) $href=$url; | |
1988 | ||
1989 | // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link. | |
ad6c27b7 | 1990 | // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg ) |
45034273 SS |
1991 | // ^^^^^^^^^^^ ^^^^^^^^^^^ |
1992 | $domain = parse_url($url,PHP_URL_HOST); | |
1993 | if ($domain=='youtube.com' || $domain=='www.youtube.com') | |
1994 | { | |
1995 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail | |
1a663a0f | 1996 | if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg', |
45034273 SS |
1997 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
1998 | } | |
1999 | if ($domain=='youtu.be') // Youtube short links | |
2000 | { | |
2001 | $path = parse_url($url,PHP_URL_PATH); | |
1a663a0f | 2002 | return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg', |
bb8f712d | 2003 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
45034273 SS |
2004 | } |
2005 | if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting | |
2006 | { | |
2007 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename. | |
2008 | if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']), | |
bb8f712d KT |
2009 | 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail'); |
2010 | } | |
2011 | ||
45034273 SS |
2012 | if ($domain=='imgur.com') |
2013 | { | |
2014 | $path = parse_url($url,PHP_URL_PATH); | |
2015 | if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available. | |
1a663a0f | 2016 | if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg', |
45034273 | 2017 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1a663a0f | 2018 | if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg', |
45034273 SS |
2019 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2020 | ||
1a663a0f | 2021 | if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg', |
45034273 SS |
2022 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2023 | } | |
2024 | if ($domain=='i.imgur.com') | |
2025 | { | |
2026 | $pi = pathinfo(parse_url($url,PHP_URL_PATH)); | |
1a663a0f | 2027 | if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg', |
45034273 SS |
2028 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
2029 | } | |
2030 | if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com') | |
2031 | { | |
2032 | if (strpos($url,'dailymotion.com/video/')!==false) | |
2033 | { | |
2034 | $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url); | |
2035 | return array('src'=>$thumburl, | |
2036 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail'); | |
2037 | } | |
2038 | } | |
2039 | if (endsWith($domain,'.imageshack.us')) | |
2040 | { | |
2041 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
2042 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
2043 | { | |
2044 | $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext; | |
2045 | return array('src'=>$thumburl, | |
2046 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail'); | |
2047 | } | |
2048 | } | |
2049 | ||
2050 | // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL. | |
2051 | // So we deport the thumbnail generation in order not to slow down page generation | |
2052 | // (and we also cache the thumbnail) | |
2053 | ||
2054 | if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache. | |
2055 | ||
2056 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com') | |
2057 | || $domain=='vimeo.com' | |
2058 | || $domain=='ted.com' || endsWith($domain,'.ted.com') | |
2059 | || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com') | |
2060 | ) | |
2061 | { | |
2062 | if ($domain=='vimeo.com') | |
ad6c27b7 | 2063 | { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric) |
45034273 SS |
2064 | $path = parse_url($url,PHP_URL_PATH); |
2065 | if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL. | |
2066 | } | |
2067 | if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
ad6c27b7 | 2068 | { // Make sure this URL points to a single comic (/xxx... where xxx is numeric) |
45034273 SS |
2069 | $path = parse_url($url,PHP_URL_PATH); |
2070 | if (!preg_match('!/\d+.+?!',$path)) return array(); | |
2071 | } | |
2072 | if ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
ad6c27b7 | 2073 | { // Make sure this TED URL points to a video (/talks/...) |
45034273 SS |
2074 | $path = parse_url($url,PHP_URL_PATH); |
2075 | if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL. | |
2076 | } | |
2077 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
2078 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url), | |
2079 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); | |
2080 | } | |
2081 | ||
2082 | // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif | |
2083 | // Technically speaking, we should download ALL links and check their Content-Type to see if they are images. | |
2084 | // But using the extension will do. | |
2085 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
2086 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
2087 | { | |
2088 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
2089 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url), | |
bb8f712d | 2090 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
45034273 SS |
2091 | } |
2092 | return array(); // No thumbnail. | |
2093 | ||
2094 | } | |
2095 | ||
2096 | ||
2097 | // Returns the HTML code to display a thumbnail for a link | |
2098 | // with a link to the original URL. | |
2099 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2100 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2101 | // $href = if provided, this URL will be followed instead of $url |
2102 | // Returns '' if no thumbnail available. | |
2103 | function thumbnail($url,$href=false) | |
2104 | { | |
2105 | $t = computeThumbnail($url,$href); | |
2106 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
bb8f712d | 2107 | |
45034273 SS |
2108 | $html='<a href="'.htmlspecialchars($t['href']).'"><img src="'.htmlspecialchars($t['src']).'"'; |
2109 | if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"'; | |
2110 | if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"'; | |
2111 | if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"'; | |
2112 | if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"'; | |
2113 | $html.='></a>'; | |
2114 | return $html; | |
2115 | } | |
2116 | ||
45034273 SS |
2117 | // Returns the HTML code to display a thumbnail for a link |
2118 | // for the picture wall (using lazy image loading) | |
2119 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2120 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2121 | // $href = if provided, this URL will be followed instead of $url |
2122 | // Returns '' if no thumbnail available. | |
2123 | function lazyThumbnail($url,$href=false) | |
2124 | { | |
bb8f712d | 2125 | $t = computeThumbnail($url,$href); |
45034273 SS |
2126 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. |
2127 | ||
2128 | $html='<a href="'.htmlspecialchars($t['href']).'">'; | |
bb8f712d | 2129 | |
34047d23 A |
2130 | // Lazy image |
2131 | $html.='<img class="b-lazy" src="#" data-src="'.htmlspecialchars($t['src']).'"'; | |
858c5c2b | 2132 | |
45034273 SS |
2133 | if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"'; |
2134 | if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"'; | |
2135 | if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"'; | |
2136 | if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"'; | |
2137 | $html.='>'; | |
bb8f712d | 2138 | |
ad6c27b7 | 2139 | // No-JavaScript fallback. |
45034273 SS |
2140 | $html.='<noscript><img src="'.htmlspecialchars($t['src']).'"'; |
2141 | if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"'; | |
2142 | if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"'; | |
2143 | if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"'; | |
2144 | if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"'; | |
2145 | $html.='></noscript></a>'; | |
bb8f712d | 2146 | |
45034273 SS |
2147 | return $html; |
2148 | } | |
2149 | ||
2150 | ||
2151 | // ----------------------------------------------------------------------------------------------- | |
2152 | // Installation | |
2153 | // This function should NEVER be called if the file data/config.php exists. | |
2154 | function install() | |
2155 | { | |
2156 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. | |
f6a6ca0a | 2157 | if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); |
45034273 | 2158 | |
f37664a2 SS |
2159 | |
2160 | // This part makes sure sessions works correctly. | |
2161 | // (Because on some hosts, session.save_path may not be set correctly, | |
2162 | // or we may not have write access to it.) | |
2163 | if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) | |
2164 | { // Step 2: Check if data in session is correct. | |
2165 | echo '<pre>Sessions do not seem to work correctly on your server.<br>'; | |
2166 | echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>'; | |
01ec1791 | 2167 | echo 'It currently points to '.session_save_path().'<br>'; |
2168 | echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'; | |
2169 | echo '<br><a href="?">Click to try again.</a></pre>'; | |
f37664a2 SS |
2170 | die; |
2171 | } | |
2172 | if (!isset($_SESSION['session_tested'])) | |
2173 | { // Step 1 : Try to store data in session and reload page. | |
2174 | $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. | |
2175 | header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data. | |
2176 | } | |
2177 | if (isset($_GET['test_session'])) | |
ad6c27b7 | 2178 | { // Step 3: Sessions are OK. Remove test parameter from URL. |
f37664a2 SS |
2179 | header('Location: '.indexUrl()); |
2180 | } | |
2181 | ||
2182 | ||
45034273 SS |
2183 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) |
2184 | { | |
2185 | $tz = 'UTC'; | |
2186 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
2187 | if (isTZvalid($_POST['continent'],$_POST['city'])) | |
2188 | $tz = $_POST['continent'].'/'.$_POST['city']; | |
2189 | $GLOBALS['timezone'] = $tz; | |
2190 | // Everything is ok, let's create config file. | |
2191 | $GLOBALS['login'] = $_POST['setlogin']; | |
2192 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
2193 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
2194 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.htmlspecialchars(indexUrl()) : $_POST['title'] ); | |
329e0768 | 2195 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
45034273 | 2196 | writeConfig(); |
fe16b01e | 2197 | echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>'; |
45034273 SS |
2198 | exit; |
2199 | } | |
2200 | ||
2201 | // Display config form: | |
2202 | list($timezone_form,$timezone_js) = templateTZform(); | |
04751e04 | 2203 | $timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; |
bb8f712d | 2204 | |
45034273 SS |
2205 | $PAGE = new pageBuilder; |
2206 | $PAGE->assign('timezone_html',$timezone_html); | |
2207 | $PAGE->assign('timezone_js',$timezone_js); | |
2208 | $PAGE->renderPage('install'); | |
2209 | exit; | |
2210 | } | |
2211 | ||
ad6c27b7 | 2212 | // Generates the timezone selection form and JavaScript. |
45034273 SS |
2213 | // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected. |
2214 | // Output: array(html,js) | |
2215 | // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected. | |
ad6c27b7 | 2216 | // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr) |
45034273 SS |
2217 | function templateTZform($ptz=false) |
2218 | { | |
ad6c27b7 | 2219 | if (function_exists('timezone_identifiers_list')) // because of old PHP version (5.1) which can be found on free.fr |
45034273 SS |
2220 | { |
2221 | // Try to split the provided timezone. | |
2222 | if ($ptz==false) { $l=timezone_identifiers_list(); $ptz=$l[0]; } | |
2223 | $spos=strpos($ptz,'/'); $pcontinent=substr($ptz,0,$spos); $pcity=substr($ptz,$spos+1); | |
2224 | ||
2225 | // Display config form: | |
2226 | $timezone_form = ''; | |
2227 | $timezone_js = ''; | |
ad6c27b7 | 2228 | // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"... |
45034273 SS |
2229 | // We split the list in continents/cities. |
2230 | $continents = array(); | |
2231 | $cities = array(); | |
2232 | foreach(timezone_identifiers_list() as $tz) | |
2233 | { | |
2234 | if ($tz=='UTC') $tz='UTC/UTC'; | |
2235 | $spos = strpos($tz,'/'); | |
2236 | if ($spos!==false) | |
2237 | { | |
2238 | $continent=substr($tz,0,$spos); $city=substr($tz,$spos+1); | |
2239 | $continents[$continent]=1; | |
2240 | if (!isset($cities[$continent])) $cities[$continent]=''; | |
e5aab50a | 2241 | $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?' selected':'').'>'.$city.'</option>'; |
45034273 SS |
2242 | } |
2243 | } | |
2244 | $continents_html = ''; | |
2245 | $continents = array_keys($continents); | |
2246 | foreach($continents as $continent) | |
e5aab50a | 2247 | $continents_html.='<option value="'.$continent.'"'.($pcontinent==$continent?' selected':'').'>'.$continent.'</option>'; |
45034273 | 2248 | $cities_html = $cities[$pcontinent]; |
858c5c2b SS |
2249 | $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select>"; |
2250 | $timezone_form .= " City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br />"; | |
fe16b01e | 2251 | $timezone_js = "<script>"; |
45034273 SS |
2252 | $timezone_js .= "function onChangecontinent(){document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];}"; |
2253 | $timezone_js .= "var citiescontinent = ".json_encode($cities).";" ; | |
2254 | $timezone_js .= "</script>" ; | |
2255 | return array($timezone_form,$timezone_js); | |
2256 | } | |
2257 | return array('',''); | |
2258 | } | |
2259 | ||
2260 | // Tells if a timezone is valid or not. | |
2261 | // If not valid, returns false. | |
2262 | // If system does not support timezone list, returns false. | |
2263 | function isTZvalid($continent,$city) | |
2264 | { | |
2265 | $tz = $continent.'/'.$city; | |
ad6c27b7 | 2266 | if (function_exists('timezone_identifiers_list')) // because of old PHP version (5.1) which can be found on free.fr |
45034273 | 2267 | { |
ad6c27b7 | 2268 | if (in_array($tz, timezone_identifiers_list())) // it's a valid timezone? |
45034273 SS |
2269 | return true; |
2270 | } | |
2271 | return false; | |
2272 | } | |
3385af12 LM |
2273 | if (!function_exists('json_encode')) { |
2274 | function json_encode($data) { | |
2275 | switch ($type = gettype($data)) { | |
2276 | case 'NULL': | |
2277 | return 'null'; | |
2278 | case 'boolean': | |
2279 | return ($data ? 'true' : 'false'); | |
2280 | case 'integer': | |
2281 | case 'double': | |
2282 | case 'float': | |
2283 | return $data; | |
2284 | case 'string': | |
2285 | return '"' . addslashes($data) . '"'; | |
2286 | case 'object': | |
2287 | $data = get_object_vars($data); | |
2288 | case 'array': | |
2289 | $output_index_count = 0; | |
2290 | $output_indexed = array(); | |
2291 | $output_associative = array(); | |
2292 | foreach ($data as $key => $value) { | |
2293 | $output_indexed[] = json_encode($value); | |
2294 | $output_associative[] = json_encode($key) . ':' . json_encode($value); | |
2295 | if ($output_index_count !== NULL && $output_index_count++ !== $key) { | |
2296 | $output_index_count = NULL; | |
2297 | } | |
2298 | } | |
2299 | if ($output_index_count !== NULL) { | |
2300 | return '[' . implode(',', $output_indexed) . ']'; | |
2301 | } else { | |
2302 | return '{' . implode(',', $output_associative) . '}'; | |
2303 | } | |
2304 | default: | |
2305 | return ''; // Not supported | |
2306 | } | |
2307 | } | |
2308 | } | |
45034273 | 2309 | |
45034273 SS |
2310 | // Re-write configuration file according to globals. |
2311 | // Requires some $GLOBALS to be set (login,hash,salt,title). | |
ad6c27b7 | 2312 | // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu. |
45034273 SS |
2313 | // (otherwise, the function simply returns.) |
2314 | function writeConfig() | |
2315 | { | |
2316 | if (is_file($GLOBALS['config']['CONFIG_FILE']) && !isLoggedIn()) die('You are not authorized to alter config.'); // Only logged in user can alter config. | |
45034273 SS |
2317 | $config='<?php $GLOBALS[\'login\']='.var_export($GLOBALS['login'],true).'; $GLOBALS[\'hash\']='.var_export($GLOBALS['hash'],true).'; $GLOBALS[\'salt\']='.var_export($GLOBALS['salt'],true).'; '; |
2318 | $config .='$GLOBALS[\'timezone\']='.var_export($GLOBALS['timezone'],true).'; date_default_timezone_set('.var_export($GLOBALS['timezone'],true).'); $GLOBALS[\'title\']='.var_export($GLOBALS['title'],true).';'; | |
ebb2880d | 2319 | $config .= '$GLOBALS[\'titleLink\']='.var_export($GLOBALS['titleLink'],true).'; '; |
45034273 SS |
2320 | $config .= '$GLOBALS[\'redirector\']='.var_export($GLOBALS['redirector'],true).'; '; |
2321 | $config .= '$GLOBALS[\'disablesessionprotection\']='.var_export($GLOBALS['disablesessionprotection'],true).'; '; | |
858c5c2b | 2322 | $config .= '$GLOBALS[\'disablejquery\']='.var_export($GLOBALS['disablejquery'],true).'; '; |
bb8f712d | 2323 | $config .= '$GLOBALS[\'privateLinkByDefault\']='.var_export($GLOBALS['privateLinkByDefault'],true).'; '; |
ed5b38dd | 2324 | $config .= '$GLOBALS[\'config\'][\'ENABLE_RSS_PERMALINKS\']='.var_export($GLOBALS['config']['ENABLE_RSS_PERMALINKS'], true).'; '; |
329e0768 | 2325 | $config .= '$GLOBALS[\'config\'][\'ENABLE_UPDATECHECK\']='.var_export($GLOBALS['config']['ENABLE_UPDATECHECK'], true).'; '; |
45034273 SS |
2326 | $config .= ' ?>'; |
2327 | if (!file_put_contents($GLOBALS['config']['CONFIG_FILE'],$config) || strcmp(file_get_contents($GLOBALS['config']['CONFIG_FILE']),$config)!=0) | |
2328 | { | |
fe16b01e | 2329 | echo '<script>alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location=\'?\';</script>'; |
45034273 SS |
2330 | exit; |
2331 | } | |
2332 | } | |
2333 | ||
ad6c27b7 | 2334 | /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL, |
45034273 | 2335 | I have deported the thumbnail URL code generation here, otherwise this would slow down page generation. |
ad6c27b7 | 2336 | The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail. |
2337 | This function is called by passing the URL: | |
45034273 | 2338 | http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL] |
ad6c27b7 | 2339 | [URL] is the URL of the link (e.g. a flickr page) |
45034273 SS |
2340 | [HMAC] is the signature for the [URL] (so that these URL cannot be forged). |
2341 | The function below will fetch the image from the webservice and store it in the cache. | |
2342 | */ | |
2343 | function genThumbnail() | |
2344 | { | |
2345 | // Make sure the parameters in the URL were generated by us. | |
2346 | $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); | |
ad6c27b7 | 2347 | if ($sign!=$_GET['hmac']) die('Naughty boy!'); |
45034273 SS |
2348 | |
2349 | // Let's see if we don't already have the image for this URL in the cache. | |
2350 | $thumbname=hash('sha1',$_GET['url']).'.jpg'; | |
2351 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) | |
2352 | { // We have the thumbnail, just serve it: | |
2353 | header('Content-Type: image/jpeg'); | |
2354 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); | |
2355 | return; | |
2356 | } | |
2357 | // We may also serve a blank image (if service did not respond) | |
2358 | $blankname=hash('sha1',$_GET['url']).'.gif'; | |
2359 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) | |
2360 | { | |
2361 | header('Content-Type: image/gif'); | |
2362 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); | |
2363 | return; | |
2364 | } | |
2365 | ||
2366 | // Otherwise, generate the thumbnail. | |
2367 | $url = $_GET['url']; | |
2368 | $domain = parse_url($url,PHP_URL_HOST); | |
2369 | ||
2370 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) | |
2371 | { | |
ad6c27b7 | 2372 | // Crude replacement to handle new flickr domain policy (They prefer www. now) |
45034273 SS |
2373 | $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url); |
2374 | ||
2375 | // Is this a link to an image, or to a flickr page ? | |
2376 | $imageurl=''; | |
2377 | if (endswith(parse_url($url,PHP_URL_PATH),'.jpg')) | |
ad6c27b7 | 2378 | { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg |
45034273 SS |
2379 | preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches); |
2380 | if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg'; | |
2381 | } | |
ad6c27b7 | 2382 | else // This is a flickr page (html) |
45034273 SS |
2383 | { |
2384 | list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page. | |
2385 | if (strpos($httpstatus,'200 OK')!==false) | |
2386 | { | |
ad6c27b7 | 2387 | // flickr now nicely provides the URL of the thumbnail in each flickr page. |
45034273 SS |
2388 | preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!',$data,$matches); |
2389 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2390 | ||
2391 | // In albums (and some other pages), the link rel="image_src" is not provided, | |
2392 | // but flickr provides: | |
2393 | // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" /> | |
2394 | if ($imageurl=='') | |
2395 | { | |
2396 | preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!',$data,$matches); | |
2397 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2398 | } | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | if ($imageurl!='') | |
2403 | { // Let's download the image. | |
2404 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); // Image is 240x120, so 10 seconds to download should be enough. | |
2405 | if (strpos($httpstatus,'200 OK')!==false) | |
2406 | { | |
2407 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2408 | header('Content-Type: image/jpeg'); | |
2409 | echo $data; | |
2410 | return; | |
2411 | } | |
2412 | } | |
2413 | } | |
2414 | ||
2415 | elseif ($domain=='vimeo.com' ) | |
2416 | { | |
2417 | // This is more complex: we have to perform a HTTP request, then parse the result. | |
ad6c27b7 | 2418 | // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098 |
45034273 | 2419 | $vid = substr(parse_url($url,PHP_URL_PATH),1); |
1a663a0f | 2420 | list($httpstatus,$headers,$data) = getHTTP('https://vimeo.com/api/v2/video/'.htmlspecialchars($vid).'.php',5); |
45034273 SS |
2421 | if (strpos($httpstatus,'200 OK')!==false) |
2422 | { | |
2423 | $t = unserialize($data); | |
2424 | $imageurl = $t[0]['thumbnail_medium']; | |
2425 | // Then we download the image and serve it to our client. | |
2426 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); | |
2427 | if (strpos($httpstatus,'200 OK')!==false) | |
2428 | { | |
2429 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2430 | header('Content-Type: image/jpeg'); | |
2431 | echo $data; | |
2432 | return; | |
2433 | } | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | elseif ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
2438 | { | |
2439 | // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page | |
2440 | // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html | |
2441 | // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" /> | |
bb8f712d | 2442 | list($httpstatus,$headers,$data) = getHTTP($url,5); |
45034273 SS |
2443 | if (strpos($httpstatus,'200 OK')!==false) |
2444 | { | |
2445 | // Extract the link to the thumbnail | |
2446 | preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); | |
2447 | if (!empty($matches[1])) | |
2448 | { // Let's download the image. | |
2449 | $imageurl=$matches[1]; | |
2450 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2451 | if (strpos($httpstatus,'200 OK')!==false) | |
2452 | { | |
2453 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2454 | file_put_contents($filepath,$data); // Save image to cache. | |
2455 | if (resizeImage($filepath)) | |
2456 | { | |
2457 | header('Content-Type: image/jpeg'); | |
2458 | echo file_get_contents($filepath); | |
2459 | return; | |
2460 | } | |
2461 | } | |
2462 | } | |
2463 | } | |
2464 | } | |
bb8f712d | 2465 | |
45034273 SS |
2466 | elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) |
2467 | { | |
2468 | // There is no thumbnail available for xkcd comics, so download the whole image and resize it. | |
2469 | // http://xkcd.com/327/ | |
2470 | // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" /> | |
2471 | list($httpstatus,$headers,$data) = getHTTP($url,5); | |
2472 | if (strpos($httpstatus,'200 OK')!==false) | |
2473 | { | |
2474 | // Extract the link to the thumbnail | |
2475 | preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches); | |
2476 | if (!empty($matches[1])) | |
2477 | { // Let's download the image. | |
2478 | $imageurl=$matches[1]; | |
2479 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2480 | if (strpos($httpstatus,'200 OK')!==false) | |
2481 | { | |
2482 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2483 | file_put_contents($filepath,$data); // Save image to cache. | |
2484 | if (resizeImage($filepath)) | |
2485 | { | |
2486 | header('Content-Type: image/jpeg'); | |
2487 | echo file_get_contents($filepath); | |
2488 | return; | |
2489 | } | |
2490 | } | |
2491 | } | |
2492 | } | |
bb8f712d | 2493 | } |
45034273 SS |
2494 | |
2495 | else | |
2496 | { | |
2497 | // For all other domains, we try to download the image and make a thumbnail. | |
2498 | list($httpstatus,$headers,$data) = getHTTP($url,30); // We allow 30 seconds max to download (and downloads are limited to 4 Mb) | |
2499 | if (strpos($httpstatus,'200 OK')!==false) | |
2500 | { | |
2501 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2502 | file_put_contents($filepath,$data); // Save image to cache. | |
2503 | if (resizeImage($filepath)) | |
2504 | { | |
2505 | header('Content-Type: image/jpeg'); | |
2506 | echo file_get_contents($filepath); | |
2507 | return; | |
2508 | } | |
2509 | } | |
2510 | } | |
2511 | ||
2512 | ||
2513 | // Otherwise, return an empty image (8x8 transparent gif) | |
2514 | $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7'); | |
2515 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice. | |
2516 | header('Content-Type: image/gif'); | |
2517 | echo $blankgif; | |
2518 | } | |
2519 | ||
2520 | // Make a thumbnail of the image (to width: 120 pixels) | |
2521 | // Returns true if success, false otherwise. | |
2522 | function resizeImage($filepath) | |
2523 | { | |
2524 | if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible. | |
2525 | ||
2526 | // Trick: some stupid people rename GIF as JPEG... or else. | |
2527 | // So we really try to open each image type whatever the extension is. | |
2528 | $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type. | |
2529 | $im=false; | |
2530 | $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough. | |
2531 | $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath); | |
2532 | $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath); | |
2533 | if (!$im) return false; // Unable to open image (corrupted or not an image) | |
2534 | $w = imagesx($im); | |
2535 | $h = imagesy($im); | |
2536 | $ystart = 0; $yheight=$h; | |
2537 | if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; } | |
2538 | $nw = 120; // Desired width | |
2539 | $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height. | |
2540 | // Resize image: | |
2541 | $im2 = imagecreatetruecolor($nw,$nh); | |
2542 | imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight); | |
2543 | imageinterlace($im2,true); // For progressive JPEG. | |
2544 | $tempname=$filepath.'_TEMP.jpg'; | |
2545 | imagejpeg($im2, $tempname, 90); | |
2546 | imagedestroy($im); | |
2547 | imagedestroy($im2); | |
9e820906 | 2548 | unlink($filepath); |
45034273 SS |
2549 | rename($tempname,$filepath); // Overwrite original picture with thumbnail. |
2550 | return true; | |
2551 | } | |
2552 | ||
2553 | // Invalidate caches when the database is changed or the user logs out. | |
ad6c27b7 | 2554 | // (e.g. tags cache). |
45034273 SS |
2555 | function invalidateCaches() |
2556 | { | |
2557 | unset($_SESSION['tags']); // Purge cache attached to session. | |
2558 | pageCache::purgeCache(); // Purge page cache shared by sessions. | |
2559 | } | |
2560 | ||
2561 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database. | |
2562 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
2563 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; } | |
2564 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; } | |
bb8f712d | 2565 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; } |
45034273 SS |
2566 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE']; |
2567 | renderPage(); | |
03545ef6 | 2568 | ?> |