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45034273 | 1 | <?php |
7d4263e1 | 2 | // Shaarli 0.5.0 - 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 | |
d1e2f8e5 | 6 | // Requires: PHP 5.3.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 | // ----------------------------------------------------------------------------------------------- |
dd484b90 A |
14 | // Hardcoded parameter (These parameters can be overwritten by editing the file /data/config.php) |
15 | // You should not touch any code below (or at your own risks!) | |
45034273 SS |
16 | $GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory |
17 | $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password) | |
18 | $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file. | |
19 | $GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page. | |
20 | $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans. | |
21 | $GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures. | |
22 | $GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes) | |
23 | $GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login | |
24 | $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in. | |
1099d8fc | 25 | $GLOBALS['config']['SHOW_ATOM'] = false; // If true, an extra "ATOM feed" button will be displayed in the toolbar |
45034273 SS |
26 | $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links. |
27 | $GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr) | |
28 | $GLOBALS['config']['PAGECACHE'] = 'pagecache'; // Page cache directory. | |
ad6c27b7 | 29 | $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage. |
45034273 | 30 | $GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable. |
2f2aa06b V |
31 | $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!) |
32 | $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!) | |
45034273 SS |
33 | $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli. |
34 | $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours | |
35 | // Note: You must have publisher.php in the same directory as Shaarli index.php | |
d2f51763 | 36 | $GLOBALS['config']['ARCHIVE_ORG'] = false; // For each link, add a link to an archived version on archive.org |
ed5b38dd | 37 | $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. |
caee7ff9 | 38 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false; |
45034273 | 39 | // ----------------------------------------------------------------------------------------------- |
7d4263e1 | 40 | define('shaarli_version','0.5.0'); |
ae00595b CH |
41 | // http://server.com/x/shaarli --> /shaarli/ |
42 | define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); | |
45034273 SS |
43 | |
44 | // Force cookie path (but do not change lifetime) | |
45 | $cookie=session_get_cookie_params(); | |
2d9fab88 | 46 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 47 | session_set_cookie_params($cookie['lifetime'],$cookiedir,$_SERVER['SERVER_NAME']); // Set default cookie expiration and path. |
45034273 | 48 | |
f37664a2 SS |
49 | // Set session parameters on server side. |
50 | define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired. | |
51 | ini_set('session.use_cookies', 1); // Use cookies to store session. | |
ad6c27b7 | 52 | ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL). |
53 | ini_set('session.use_trans_sid', false); // Prevent PHP form using sessionID in URL if cookies are disabled. | |
f37664a2 SS |
54 | session_name('shaarli'); |
55 | if (session_id() == '') session_start(); // Start session if needed (Some server auto-start sessions). | |
56 | ||
45034273 SS |
57 | // PHP Settings |
58 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. | |
59 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
60 | ini_set('post_max_size', '16M'); | |
61 | ini_set('upload_max_filesize', '16M'); | |
45034273 SS |
62 | error_reporting(E_ALL^E_WARNING); // See all error except warnings. |
63 | //error_reporting(-1); // See all errors (for debugging only) | |
64 | ||
50c9a12e V |
65 | // User configuration |
66 | if (is_file($GLOBALS['config']['CONFIG_FILE'])) { | |
67 | require_once $GLOBALS['config']['CONFIG_FILE']; | |
68 | } | |
69 | ||
ca74886f V |
70 | // Shaarli library |
71 | require_once 'application/LinkDB.php'; | |
d1e2f8e5 | 72 | require_once 'application/TimeZone.php'; |
ca74886f | 73 | require_once 'application/Utils.php'; |
dd484b90 | 74 | require_once 'application/Config.php'; |
ca74886f | 75 | |
d1e2f8e5 V |
76 | // Ensure the PHP version is supported |
77 | try { | |
78 | checkPHPVersion('5.3', PHP_VERSION); | |
79 | } catch(Exception $e) { | |
80 | header('Content-Type: text/plain; charset=utf-8'); | |
81 | echo $e->getMessage(); | |
82 | exit; | |
83 | } | |
84 | ||
45034273 | 85 | include "inc/rain.tpl.class.php"; //include Rain TPL |
25f5c59d | 86 | raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory |
25f5c59d | 87 | raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory |
45034273 SS |
88 | |
89 | ob_start(); // Output buffering for the page cache. | |
90 | ||
91 | ||
92 | // In case stupid admin has left magic_quotes enabled in php.ini: | |
93 | if (get_magic_quotes_gpc()) | |
94 | { | |
95 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
96 | $_POST = array_map('stripslashes_deep', $_POST); | |
97 | $_GET = array_map('stripslashes_deep', $_GET); | |
98 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
99 | } | |
100 | ||
101 | // Prevent caching on client side or proxy: (yes, it's ugly) | |
102 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
103 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
104 | header("Cache-Control: post-check=0, pre-check=0", false); | |
105 | header("Pragma: no-cache"); | |
106 | ||
ad6c27b7 | 107 | // Directories creations (Note that your web host may require different rights than 705.) |
60b83e7c | 108 | if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>'); |
45034273 | 109 | |
45034273 | 110 | // Handling of old config file which do not have the new parameters. |
5f85fcd8 | 111 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(indexUrl()); |
45034273 | 112 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); |
8a80e4fe | 113 | if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; |
45034273 | 114 | if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; |
bb8f712d | 115 | if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; |
ebb2880d | 116 | if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; |
858c5c2b | 117 | // I really need to rewrite Shaarli with a proper configuation manager. |
45034273 | 118 | |
8a80e4fe | 119 | // Run config screen if first run: |
50c9a12e V |
120 | if (! is_file($GLOBALS['config']['CONFIG_FILE'])) { |
121 | install(); | |
122 | } | |
8a80e4fe | 123 | |
5f85fcd8 A |
124 | $GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : ''; |
125 | $GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : ''; | |
126 | $GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : ''; | |
8a80e4fe | 127 | |
ae00595b CH |
128 | // a token depending of deployment salt, user password, and the current ip |
129 | define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); | |
8a80e4fe | 130 | |
45034273 SS |
131 | autoLocale(); // Sniff browser language and set date format accordingly. |
132 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
133 | ||
ff69d87e FE |
134 | //================================================================================================== |
135 | // Checking session state (i.e. is the user still logged in) | |
136 | //================================================================================================== | |
137 | ||
138 | function setup_login_state() { | |
139 | $userIsLoggedIn = false; // By default, we do not consider the user as logged in; | |
140 | $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. | |
141 | if ($GLOBALS['config']['OPEN_SHAARLI']) { | |
142 | $userIsLoggedIn = true; | |
143 | } | |
144 | if (!isset($GLOBALS['login'])) { | |
145 | $userIsLoggedIn = false; // Shaarli is not configured yet. | |
146 | $loginFailure = true; | |
147 | } | |
148 | if (isset($_COOKIE['shaarli_staySignedIn']) && | |
149 | $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && | |
150 | !$loginFailure) | |
151 | { | |
152 | fillSessionInfo(); | |
153 | $userIsLoggedIn = true; | |
154 | } | |
155 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
156 | if (empty($_SESSION['uid']) || | |
157 | ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || | |
158 | time() >= $_SESSION['expires_on']) | |
159 | { | |
160 | logout(); | |
161 | $userIsLoggedIn = false; | |
162 | $loginFailure = true; | |
163 | } | |
164 | if (!empty($_SESSION['longlastingsession'])) { | |
165 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked. | |
166 | } | |
167 | else { | |
168 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date. | |
169 | } | |
170 | if (!$loginFailure) { | |
171 | $userIsLoggedIn = true; | |
172 | } | |
173 | ||
174 | return $userIsLoggedIn; | |
175 | } | |
ff69d87e | 176 | $userIsLoggedIn = setup_login_state(); |
45034273 SS |
177 | |
178 | // Checks if an update is available for Shaarli. | |
179 | // (at most once a day, and only for registered user.) | |
180 | // Output: '' = no new version. | |
181 | // other= the available version. | |
182 | function checkUpdate() | |
183 | { | |
184 | if (!isLoggedIn()) return ''; // Do not check versions for visitors. | |
329e0768 | 185 | if (empty($GLOBALS['config']['ENABLE_UPDATECHECK'])) return ''; // Do not check if the user doesn't want to. |
45034273 SS |
186 | |
187 | // Get latest version number at most once a day. | |
188 | if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL']))) | |
189 | { | |
190 | $version=shaarli_version; | |
dbcad740 | 191 | list($httpstatus,$headers,$data) = getHTTP('https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php',2); |
192 | if (strpos($httpstatus,'200 OK')!==false) $version=str_replace(' */ ?>','',str_replace('<?php /* ','',$data)); | |
ad6c27b7 | 193 | // If failed, never mind. We don't want to bother the user with that. |
45034273 SS |
194 | file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date |
195 | } | |
196 | // Compare versions: | |
197 | $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']); | |
198 | if (version_compare($newestversion,shaarli_version)==1) return $newestversion; | |
199 | return ''; | |
200 | } | |
201 | ||
202 | ||
203 | // ----------------------------------------------------------------------------------------------- | |
204 | // Simple cache system (mainly for the RSS/ATOM feeds). | |
205 | ||
206 | class pageCache | |
207 | { | |
208 | private $url; // Full URL of the page to cache (typically the value returned by pageUrl()) | |
ad6c27b7 | 209 | private $shouldBeCached; // boolean: Should this url be cached? |
210 | private $filename; // Name of the cache file for this url. | |
45034273 | 211 | |
bb8f712d | 212 | /* |
ad6c27b7 | 213 | $url = URL (typically the value returned by pageUrl()) |
45034273 SS |
214 | $shouldBeCached = boolean. If false, the cache will be disabled. |
215 | */ | |
216 | public function __construct($url,$shouldBeCached) | |
217 | { | |
218 | $this->url = $url; | |
219 | $this->filename = $GLOBALS['config']['PAGECACHE'].'/'.sha1($url).'.cache'; | |
220 | $this->shouldBeCached = $shouldBeCached; | |
bb8f712d | 221 | } |
45034273 SS |
222 | |
223 | // If the page should be cached and a cached version exists, | |
224 | // returns the cached version (otherwise, return null). | |
225 | public function cachedVersion() | |
226 | { | |
227 | if (!$this->shouldBeCached) return null; | |
228 | if (is_file($this->filename)) { return file_get_contents($this->filename); exit; } | |
229 | return null; | |
230 | } | |
231 | ||
232 | // Put a page in the cache. | |
233 | public function cache($page) | |
234 | { | |
235 | if (!$this->shouldBeCached) return; | |
45034273 SS |
236 | file_put_contents($this->filename,$page); |
237 | } | |
238 | ||
239 | // Purge the whole cache. | |
240 | // (call with pageCache::purgeCache()) | |
241 | public static function purgeCache() | |
242 | { | |
243 | if (is_dir($GLOBALS['config']['PAGECACHE'])) | |
244 | { | |
245 | $handler = opendir($GLOBALS['config']['PAGECACHE']); | |
64bf914a | 246 | if ($handler!==false) |
45034273 | 247 | { |
bb8f712d | 248 | while (($filename = readdir($handler))!==false) |
45034273 SS |
249 | { |
250 | if (endsWith($filename,'.cache')) { unlink($GLOBALS['config']['PAGECACHE'].'/'.$filename); } | |
251 | } | |
252 | closedir($handler); | |
253 | } | |
254 | } | |
255 | } | |
256 | ||
257 | } | |
258 | ||
259 | ||
260 | // ----------------------------------------------------------------------------------------------- | |
261 | // Log to text file | |
262 | function logm($message) | |
263 | { | |
264 | $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; | |
265 | file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND); | |
266 | } | |
267 | ||
ad6c27b7 | 268 | // In a string, converts URLs to clickable links. |
45034273 SS |
269 | // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 |
270 | function text2clickable($url) | |
271 | { | |
272 | $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; | |
30b0672d | 273 | return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url); |
45034273 SS |
274 | } |
275 | ||
276 | // This function inserts where relevant so that multiple spaces are properly displayed in HTML | |
277 | // even in the absence of <pre> (This is used in description to keep text formatting) | |
278 | function keepMultipleSpaces($text) | |
279 | { | |
280 | return str_replace(' ',' ',$text); | |
bb8f712d | 281 | |
45034273 SS |
282 | } |
283 | // ------------------------------------------------------------------------------------------ | |
284 | // Sniff browser language to display dates in the right format automatically. | |
285 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
286 | function autoLocale() | |
287 | { | |
8438a2e5 | 288 | $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE |
ad6c27b7 | 289 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" |
290 | { // (It's a bit crude, but it works very well. Preferred language is always presented first.) | |
8438a2e5 A |
291 | if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) { |
292 | $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : ''); | |
da49603b | 293 | $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc), |
d33c5d4c M |
294 | $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc), |
295 | $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8', | |
da49603b | 296 | $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc); |
8438a2e5 | 297 | } |
45034273 | 298 | } |
8438a2e5 | 299 | setlocale(LC_TIME, $attempts); // LC_TIME = Set local for date/time format only. |
45034273 SS |
300 | } |
301 | ||
302 | // ------------------------------------------------------------------------------------------ | |
303 | // PubSubHubbub protocol support (if enabled) [UNTESTED] | |
304 | // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ ) | |
305 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php'; | |
306 | function pubsubhub() | |
307 | { | |
308 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
309 | { | |
310 | $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']); | |
311 | $topic_url = array ( | |
312 | indexUrl().'?do=atom', | |
313 | indexUrl().'?do=rss' | |
314 | ); | |
315 | $p->publish_update($topic_url); | |
316 | } | |
317 | } | |
318 | ||
319 | // ------------------------------------------------------------------------------------------ | |
320 | // Session management | |
45034273 SS |
321 | |
322 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
323 | function allIPs() | |
324 | { | |
325 | $ip = $_SERVER["REMOTE_ADDR"]; | |
326 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
327 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
328 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
329 | return $ip; | |
330 | } | |
331 | ||
ae00595b | 332 | function fillSessionInfo() { |
ad6c27b7 | 333 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid) |
ae00595b CH |
334 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. |
335 | $_SESSION['username']=$GLOBALS['login']; | |
336 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
337 | } | |
338 | ||
45034273 SS |
339 | // Check that user/password is correct. |
340 | function check_auth($login,$password) | |
341 | { | |
342 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
343 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
344 | { // Login/password is correct. | |
ae00595b | 345 | fillSessionInfo(); |
45034273 SS |
346 | logm('Login successful'); |
347 | return True; | |
348 | } | |
349 | logm('Login failed for user '.$login); | |
350 | return False; | |
351 | } | |
352 | ||
353 | // Returns true if the user is logged in. | |
354 | function isLoggedIn() | |
355 | { | |
ff69d87e FE |
356 | global $userIsLoggedIn; |
357 | return $userIsLoggedIn; | |
45034273 SS |
358 | } |
359 | ||
360 | // Force logout. | |
ff69d87e FE |
361 | function logout() { |
362 | if (isset($_SESSION)) { | |
363 | unset($_SESSION['uid']); | |
364 | unset($_SESSION['ip']); | |
365 | unset($_SESSION['username']); | |
366 | unset($_SESSION['privateonly']); | |
367 | } | |
368 | setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH); | |
ae00595b | 369 | } |
45034273 SS |
370 | |
371 | ||
372 | // ------------------------------------------------------------------------------------------ | |
373 | // Brute force protection system | |
374 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
375 | 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?>"); | |
376 | include $GLOBALS['config']['IPBANS_FILENAME']; | |
377 | // Signal a failed login. Will ban the IP if too many failures: | |
378 | function ban_loginFailed() | |
379 | { | |
380 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
381 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
382 | $gb['FAILURES'][$ip]++; | |
383 | if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1)) | |
384 | { | |
385 | $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION']; | |
386 | logm('IP address banned from login'); | |
387 | } | |
388 | $GLOBALS['IPBANS'] = $gb; | |
389 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
390 | } | |
391 | ||
392 | // Signals a successful login. Resets failed login counter. | |
393 | function ban_loginOk() | |
394 | { | |
395 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
396 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
397 | $GLOBALS['IPBANS'] = $gb; | |
398 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
399 | } | |
400 | ||
401 | // Checks if the user CAN login. If 'true', the user can try to login. | |
402 | function ban_canLogin() | |
403 | { | |
404 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
405 | if (isset($gb['BANS'][$ip])) | |
406 | { | |
407 | // User is banned. Check if the ban has expired: | |
408 | if ($gb['BANS'][$ip]<=time()) | |
409 | { // Ban expired, user can try to login again. | |
410 | logm('Ban lifted.'); | |
411 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
412 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
413 | return true; // Ban has expired, user can login. | |
414 | } | |
415 | return false; // User is banned. | |
416 | } | |
417 | return true; // User is not banned. | |
418 | } | |
419 | ||
420 | // ------------------------------------------------------------------------------------------ | |
421 | // Process login form: Check if login/password is correct. | |
422 | if (isset($_POST['login'])) | |
423 | { | |
424 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
425 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
ad6c27b7 | 426 | { // Login/password is OK. |
45034273 SS |
427 | ban_loginOk(); |
428 | // If user wants to keep the session cookie even after the browser closes: | |
429 | if (!empty($_POST['longlastingsession'])) | |
430 | { | |
ae00595b | 431 | setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH); |
45034273 SS |
432 | $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year) |
433 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side. | |
2d9fab88 SS |
434 | |
435 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
2f32d074 | 436 | session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side |
ad6c27b7 | 437 | // Note: Never forget the trailing slash on the cookie path! |
45034273 SS |
438 | session_regenerate_id(true); // Send cookie with new expiration date to browser. |
439 | } | |
440 | else // Standard session expiration (=when browser closes) | |
441 | { | |
2d9fab88 | 442 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 443 | session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes" |
45034273 SS |
444 | session_regenerate_id(true); |
445 | } | |
446 | // Optional redirect after login: | |
a1795ddc | 447 | 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 |
448 | if (isset($_POST['returnurl'])) |
449 | { | |
450 | if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen. | |
451 | header('Location: '.$_POST['returnurl']); exit; | |
452 | } | |
453 | header('Location: ?'); exit; | |
454 | } | |
455 | else | |
456 | { | |
457 | ban_loginFailed(); | |
705f8355 | 458 | $redir = ''; |
a1795ddc | 459 | if (isset($_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 | 460 | echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen. |
45034273 SS |
461 | exit; |
462 | } | |
463 | } | |
464 | ||
465 | // ------------------------------------------------------------------------------------------ | |
466 | // Misc utility functions: | |
467 | ||
468 | // Returns the server URL (including port and http/https), without path. | |
ad6c27b7 | 469 | // e.g. "http://myserver.com:8080" |
45034273 SS |
470 | // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL. |
471 | function serverUrl() | |
472 | { | |
473 | $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443'; // HTTPS detection. | |
474 | $serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]); | |
2f32d074 | 475 | return 'http'.($https?'s':'').'://'.$_SERVER['SERVER_NAME'].$serverport; |
45034273 SS |
476 | } |
477 | ||
478 | // Returns the absolute URL of current script, without the query. | |
ad6c27b7 | 479 | // (e.g. http://sebsauvage.net/links/) |
45034273 SS |
480 | function indexUrl() |
481 | { | |
9e975d86 SS |
482 | $scriptname = $_SERVER["SCRIPT_NAME"]; |
483 | // If the script is named 'index.php', we remove it (for better looking URLs, | |
ad6c27b7 | 484 | // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde) |
9e975d86 SS |
485 | if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9); |
486 | return serverUrl() . $scriptname; | |
45034273 SS |
487 | } |
488 | ||
489 | // Returns the absolute URL of current script, WITH the query. | |
ad6c27b7 | 490 | // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug) |
45034273 SS |
491 | function pageUrl() |
492 | { | |
493 | return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : ''); | |
494 | } | |
495 | ||
ad6c27b7 | 496 | // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes. |
45034273 SS |
497 | function return_bytes($val) |
498 | { | |
499 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
500 | switch($last) | |
501 | { | |
502 | case 'g': $val *= 1024; | |
503 | case 'm': $val *= 1024; | |
504 | case 'k': $val *= 1024; | |
505 | } | |
506 | return $val; | |
507 | } | |
508 | ||
509 | // Try to determine max file size for uploads (POST). | |
510 | // Returns an integer (in bytes) | |
511 | function getMaxFileSize() | |
512 | { | |
513 | $size1 = return_bytes(ini_get('post_max_size')); | |
514 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
515 | // Return the smaller of two: | |
516 | $maxsize = min($size1,$size2); | |
ad6c27b7 | 517 | // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000) |
45034273 SS |
518 | return $maxsize; |
519 | } | |
520 | ||
45034273 SS |
521 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) |
522 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
523 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
524 | function linkdate2timestamp($linkdate) | |
525 | { | |
f5b05925 JD |
526 | if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){ |
527 | $Y=$M=$D=$h=$m=$s=0; | |
528 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
529 | return mktime($h,$m,$s,$M,$D,$Y); | |
530 | } | |
531 | return time(); | |
45034273 SS |
532 | } |
533 | ||
534 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
535 | (used to build the pubDate attribute in RSS feed.) */ | |
536 | function linkdate2rfc822($linkdate) | |
537 | { | |
538 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
539 | } | |
540 | ||
541 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date. | |
542 | (used to build the updated tags in ATOM feed.) */ | |
543 | function linkdate2iso8601($linkdate) | |
544 | { | |
545 | return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format. | |
546 | } | |
547 | ||
45034273 SS |
548 | // Parse HTTP response headers and return an associative array. |
549 | function http_parse_headers_shaarli( $headers ) | |
550 | { | |
551 | $res=array(); | |
552 | foreach($headers as $header) | |
553 | { | |
554 | $i = strpos($header,': '); | |
555 | if ($i!==false) | |
556 | { | |
557 | $key=substr($header,0,$i); | |
558 | $value=substr($header,$i+2,strlen($header)-$i-2); | |
559 | $res[$key]=$value; | |
560 | } | |
561 | } | |
562 | return $res; | |
563 | } | |
564 | ||
565 | /* GET an URL. | |
ad6c27b7 | 566 | Input: $url : URL to get (http://...) |
45034273 | 567 | $timeout : Network timeout (will wait this many seconds for an anwser before giving up). |
ad6c27b7 | 568 | Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message |
569 | [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type']) | |
45034273 SS |
570 | [2] = data |
571 | Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/'); | |
572 | if (strpos($httpstatus,'200 OK')!==false) | |
573 | echo 'Data type: '.htmlspecialchars($headers['Content-Type']); | |
574 | else | |
575 | echo 'There was an error: '.htmlspecialchars($httpstatus) | |
576 | */ | |
577 | function getHTTP($url,$timeout=30) | |
578 | { | |
579 | try | |
580 | { | |
03545ef6 | 581 | $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 |
582 | $context = stream_context_create($options); |
583 | $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source. | |
584 | if (!$data) { return array('HTTP Error',array(),''); } | |
ad6c27b7 | 585 | $httpStatus=$http_response_header[0]; // e.g. "HTTP/1.1 200 OK" |
45034273 SS |
586 | $responseHeaders=http_parse_headers_shaarli($http_response_header); |
587 | return array($httpStatus,$responseHeaders,$data); | |
588 | } | |
ad6c27b7 | 589 | catch (Exception $e) // getHTTP *can* fail silently (we don't care if the title cannot be fetched) |
45034273 SS |
590 | { |
591 | return array($e->getMessage(),'',''); | |
592 | } | |
593 | } | |
594 | ||
595 | // Extract title from an HTML document. | |
596 | // (Returns an empty string if not found.) | |
597 | function html_extract_title($html) | |
598 | { | |
599 | return preg_match('!<title>(.*?)</title>!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ; | |
600 | } | |
601 | ||
602 | // ------------------------------------------------------------------------------------------ | |
603 | // Token management for XSRF protection | |
604 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
605 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
606 | ||
607 | // Returns a token. | |
608 | function getToken() | |
609 | { | |
a1f5a6ec | 610 | $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string. |
45034273 SS |
611 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. |
612 | return $rnd; | |
613 | } | |
614 | ||
ad6c27b7 | 615 | // Tells if a token is OK. Using this function will destroy the token. |
616 | // true=token is OK. | |
45034273 SS |
617 | function tokenOk($token) |
618 | { | |
619 | if (isset($_SESSION['tokens'][$token])) | |
620 | { | |
621 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
ad6c27b7 | 622 | return true; // Token is OK. |
45034273 SS |
623 | } |
624 | return false; // Wrong token, or already used. | |
625 | } | |
626 | ||
627 | // ------------------------------------------------------------------------------------------ | |
628 | /* This class is in charge of building the final page. | |
629 | (This is basically a wrapper around RainTPL which pre-fills some fields.) | |
630 | p = new pageBuilder; | |
631 | p.assign('myfield','myvalue'); | |
632 | p.renderPage('mytemplate'); | |
bb8f712d | 633 | |
45034273 SS |
634 | */ |
635 | class pageBuilder | |
636 | { | |
637 | private $tpl; // RainTPL template | |
638 | ||
639 | function __construct() | |
640 | { | |
641 | $this->tpl=false; | |
bb8f712d | 642 | } |
45034273 SS |
643 | |
644 | private function initialize() | |
bb8f712d KT |
645 | { |
646 | $this->tpl = new RainTPL; | |
5f85fcd8 A |
647 | $this->tpl->assign('newversion',escape(checkUpdate())); |
648 | $this->tpl->assign('feedurl',escape(indexUrl())); | |
45034273 SS |
649 | $searchcrits=''; // Search criteria |
650 | if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']); | |
651 | elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']); | |
652 | $this->tpl->assign('searchcrits',$searchcrits); | |
653 | $this->tpl->assign('source',indexUrl()); | |
654 | $this->tpl->assign('version',shaarli_version); | |
655 | $this->tpl->assign('scripturl',indexUrl()); | |
656 | $this->tpl->assign('pagetitle','Shaarli'); | |
ad6c27b7 | 657 | $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links? |
45034273 | 658 | if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']); |
ebb2880d | 659 | if (!empty($GLOBALS['titleLink'])) $this->tpl->assign('titleLink',$GLOBALS['titleLink']); |
45034273 SS |
660 | if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']); |
661 | $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] ); | |
bb8f712d | 662 | return; |
45034273 | 663 | } |
bb8f712d | 664 | |
45034273 SS |
665 | // The following assign() method is basically the same as RainTPL (except that it's lazy) |
666 | public function assign($what,$where) | |
667 | { | |
668 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
669 | $this->tpl->assign($what,$where); | |
670 | } | |
bb8f712d | 671 | |
45034273 | 672 | // Render a specific page (using a template). |
ad6c27b7 | 673 | // e.g. pb.renderPage('picwall') |
45034273 SS |
674 | public function renderPage($page) |
675 | { | |
676 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
677 | $this->tpl->draw($page); | |
678 | } | |
679 | } | |
680 | ||
45034273 | 681 | // ------------------------------------------------------------------------------------------ |
ad6c27b7 | 682 | // Output the last N links in RSS 2.0 format. |
45034273 SS |
683 | function showRSS() |
684 | { | |
685 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
686 | ||
2abd3905 | 687 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 688 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks |
ed5b38dd FE |
689 | // Also enabled through a config option |
690 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
2abd3905 | 691 | |
45034273 SS |
692 | // Cache system |
693 | $query = $_SERVER["QUERY_STRING"]; | |
694 | $cache = new pageCache(pageUrl(),startsWith($query,'do=rss') && !isLoggedIn()); | |
695 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
696 | ||
697 | // If cached was not found (or not usable), then read the database and build the response: | |
9f15ca9e | 698 | $LINKSDB = new LinkDB( |
9c8752a2 | 699 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
700 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
701 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
702 | ); | |
703 | // Read links from database (and filter private links if user it not logged in). | |
45034273 | 704 | |
ad6c27b7 | 705 | // Optionally filter the results: |
45034273 SS |
706 | $linksToDisplay=array(); |
707 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
59c90f58 | 708 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
45034273 | 709 | else $linksToDisplay = $LINKSDB; |
f3db3774 | 710 | |
c677013b SS |
711 | $nblinksToDisplay = 50; // Number of links to display. |
712 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 713 | { |
c677013b SS |
714 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
715 | } | |
45034273 | 716 | |
5f85fcd8 | 717 | $pageaddr=escape(indexUrl()); |
45034273 | 718 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; |
5f85fcd8 | 719 | echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>'; |
45034273 SS |
720 | echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n"; |
721 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
722 | { | |
723 | echo '<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 A |
724 | echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />'; |
725 | echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />'; | |
45034273 SS |
726 | echo '<!-- End Of PubSubHubbub Discovery -->'; |
727 | } | |
728 | $i=0; | |
729 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 730 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
731 | { |
732 | $link = $linksToDisplay[$keys[$i]]; | |
733 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
734 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
5f85fcd8 | 735 | $absurl = $link['url']; |
45034273 | 736 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
2abd3905 | 737 | if ($usepermalinks===true) |
5f85fcd8 | 738 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>'; |
2abd3905 | 739 | else |
5f85fcd8 A |
740 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>'; |
741 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.escape($rfc822date)."</pubDate>\n"; | |
45034273 SS |
742 | if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification) |
743 | { | |
5f85fcd8 | 744 | foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; } |
45034273 | 745 | } |
2abd3905 SS |
746 | |
747 | // Add permalink in description | |
748 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
749 | // If user wants permalinks first, put the final link in description | |
750 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
751 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
5f85fcd8 | 752 | echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink.']]></description>'."\n</item>\n"; |
45034273 SS |
753 | $i++; |
754 | } | |
5f85fcd8 | 755 | echo '</channel></rss><!-- Cached version of '.escape(pageUrl()).' -->'; |
45034273 SS |
756 | |
757 | $cache->cache(ob_get_contents()); | |
758 | ob_end_flush(); | |
759 | exit; | |
760 | } | |
761 | ||
762 | // ------------------------------------------------------------------------------------------ | |
ad6c27b7 | 763 | // Output the last N links in ATOM format. |
45034273 SS |
764 | function showATOM() |
765 | { | |
766 | header('Content-Type: application/atom+xml; charset=utf-8'); | |
767 | ||
2abd3905 | 768 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 769 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks |
ed5b38dd | 770 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; |
2abd3905 | 771 | |
45034273 SS |
772 | // Cache system |
773 | $query = $_SERVER["QUERY_STRING"]; | |
774 | $cache = new pageCache(pageUrl(),startsWith($query,'do=atom') && !isLoggedIn()); | |
775 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
776 | // If cached was not found (or not usable), then read the database and build the response: | |
777 | ||
eaefcba7 | 778 | // Read links from database (and filter private links if used it not logged in). |
9f15ca9e | 779 | $LINKSDB = new LinkDB( |
9c8752a2 | 780 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
781 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
782 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
783 | ); | |
45034273 | 784 | |
ad6c27b7 | 785 | // Optionally filter the results: |
45034273 SS |
786 | $linksToDisplay=array(); |
787 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
59c90f58 | 788 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
45034273 | 789 | else $linksToDisplay = $LINKSDB; |
f3db3774 | 790 | |
c677013b SS |
791 | $nblinksToDisplay = 50; // Number of links to display. |
792 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 793 | { |
c677013b SS |
794 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
795 | } | |
45034273 | 796 | |
5f85fcd8 | 797 | $pageaddr=escape(indexUrl()); |
45034273 SS |
798 | $latestDate = ''; |
799 | $entries=''; | |
800 | $i=0; | |
801 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 802 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
803 | { |
804 | $link = $linksToDisplay[$keys[$i]]; | |
805 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
806 | $iso8601date = linkdate2iso8601($link['linkdate']); | |
807 | $latestDate = max($latestDate,$iso8601date); | |
5f85fcd8 | 808 | $absurl = $link['url']; |
45034273 | 809 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
5f85fcd8 | 810 | $entries.='<entry><title>'.$link['title'].'</title>'; |
2abd3905 SS |
811 | if ($usepermalinks===true) |
812 | $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>'; | |
813 | else | |
814 | $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>'; | |
5f85fcd8 | 815 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.escape($iso8601date).'</updated>'; |
2abd3905 SS |
816 | |
817 | // Add permalink in description | |
5f85fcd8 | 818 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; |
2abd3905 | 819 | // If user wants permalinks first, put the final link in description |
5f85fcd8 A |
820 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; |
821 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
2abd3905 | 822 | |
5f85fcd8 | 823 | $entries.='<content type="html"><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink."]]></content>\n"; |
45034273 SS |
824 | if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) |
825 | { | |
826 | foreach(explode(' ',$link['tags']) as $tag) | |
5f85fcd8 | 827 | { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; } |
45034273 SS |
828 | } |
829 | $entries.="</entry>\n"; | |
830 | $i++; | |
831 | } | |
832 | $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">'; | |
5f85fcd8 A |
833 | $feed.='<title>'.$GLOBALS['title'].'</title>'; |
834 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>'; | |
835 | $feed.='<link rel="self" href="'.escape(serverUrl().$_SERVER["REQUEST_URI"]).'" />'; | |
45034273 SS |
836 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) |
837 | { | |
838 | $feed.='<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 | 839 | $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />'; |
45034273 SS |
840 | $feed.='<!-- End Of PubSubHubbub Discovery -->'; |
841 | } | |
5f85fcd8 A |
842 | $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>'; |
843 | $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. | |
45034273 | 844 | $feed.=$entries; |
5f85fcd8 | 845 | $feed.='</feed><!-- Cached version of '.escape(pageUrl()).' -->'; |
45034273 | 846 | echo $feed; |
bb8f712d | 847 | |
45034273 SS |
848 | $cache->cache(ob_get_contents()); |
849 | ob_end_flush(); | |
850 | exit; | |
851 | } | |
852 | ||
853 | // ------------------------------------------------------------------------------------------ | |
854 | // Daily RSS feed: 1 RSS entry per day giving all the links on that day. | |
855 | // Gives the last 7 days (which have links). | |
856 | // This RSS feed cannot be filtered. | |
f3b8f9f0 | 857 | function showDailyRSS() { |
45034273 SS |
858 | // Cache system |
859 | $query = $_SERVER["QUERY_STRING"]; | |
f3b8f9f0 A |
860 | $cache = new pageCache(pageUrl(), startsWith($query, 'do=dailyrss') && !isLoggedIn()); |
861 | $cached = $cache->cachedVersion(); | |
862 | if (!empty($cached)) { | |
863 | echo $cached; | |
864 | exit; | |
865 | } | |
9f15ca9e | 866 | |
f3b8f9f0 A |
867 | // If cached was not found (or not usable), then read the database and build the response: |
868 | // Read links from database (and filter private links if used it not logged in). | |
9f15ca9e | 869 | $LINKSDB = new LinkDB( |
9c8752a2 | 870 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
871 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
872 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
873 | ); | |
bb8f712d | 874 | |
45034273 SS |
875 | /* Some Shaarlies may have very few links, so we need to look |
876 | back in time (rsort()) until we have enough days ($nb_of_days). | |
877 | */ | |
f3b8f9f0 A |
878 | $linkdates = array(); |
879 | foreach ($LINKSDB as $linkdate => $value) { | |
880 | $linkdates[] = $linkdate; | |
881 | } | |
45034273 | 882 | rsort($linkdates); |
f3b8f9f0 A |
883 | $nb_of_days = 7; // We take 7 days. |
884 | $today = Date('Ymd'); | |
885 | $days = array(); | |
886 | ||
887 | foreach ($linkdates as $linkdate) { | |
888 | $day = substr($linkdate, 0, 8); // Extract day (without time) | |
889 | if (strcmp($day,$today) < 0) { | |
890 | if (empty($days[$day])) { | |
891 | $days[$day] = array(); | |
892 | } | |
893 | $days[$day][] = $linkdate; | |
894 | } | |
895 | ||
896 | if (count($days) > $nb_of_days) { | |
897 | break; // Have we collected enough days? | |
45034273 | 898 | } |
45034273 | 899 | } |
bb8f712d | 900 | |
45034273 SS |
901 | // Build the RSS feed. |
902 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
f3b8f9f0 | 903 | $pageaddr = escape(indexUrl()); |
45034273 | 904 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">'; |
f3b8f9f0 A |
905 | echo '<channel>'; |
906 | echo '<title>Daily - '. $GLOBALS['title'] . '</title>'; | |
907 | echo '<link>'. $pageaddr .'</link>'; | |
908 | echo '<description>Daily shared links</description>'; | |
909 | echo '<language>en-en</language>'; | |
910 | echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL; | |
911 | ||
912 | // For each day. | |
913 | foreach ($days as $day => $linkdates) { | |
914 | $daydate = linkdate2timestamp($day.'_000000'); // Full text date | |
45034273 | 915 | $rfc822date = linkdate2rfc822($day.'_000000'); |
f3b8f9f0 | 916 | $absurl = escape(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. |
bb8f712d | 917 | |
45034273 | 918 | // Build the HTML body of this RSS entry. |
f3b8f9f0 A |
919 | $html = ''; |
920 | $href = ''; | |
921 | $links = array(); | |
922 | ||
45034273 | 923 | // We pre-format some fields for proper output. |
f3b8f9f0 | 924 | foreach ($linkdates as $linkdate) { |
45034273 | 925 | $l = $LINKSDB[$linkdate]; |
f3b8f9f0 | 926 | $l['formatedDescription'] = nl2br(keepMultipleSpaces(text2clickable($l['description']))); |
bb8f712d | 927 | $l['thumbnail'] = thumbnail($l['url']); |
a5752e77 | 928 | $l['timestamp'] = linkdate2timestamp($l['linkdate']); |
f3b8f9f0 A |
929 | if (startsWith($l['url'], '?')) { |
930 | $l['url'] = indexUrl() . $l['url']; // make permalink URL absolute | |
931 | } | |
932 | $links[$linkdate] = $l; | |
45034273 | 933 | } |
f3b8f9f0 | 934 | |
45034273 | 935 | // Then build the HTML for this day: |
bb8f712d | 936 | $tpl = new RainTPL; |
f3b8f9f0 A |
937 | $tpl->assign('title', $GLOBALS['title']); |
938 | $tpl->assign('daydate', $daydate); | |
939 | $tpl->assign('absurl', $absurl); | |
940 | $tpl->assign('links', $links); | |
941 | $tpl->assign('rfc822date', escape($rfc822date)); | |
942 | $html = $tpl->draw('dailyrss', $return_string=true); | |
45034273 | 943 | |
f3b8f9f0 | 944 | echo $html . PHP_EOL; |
bb8f712d | 945 | } |
f3b8f9f0 | 946 | echo '</channel></rss><!-- Cached version of '. escape(pageUrl()) .' -->'; |
bb8f712d | 947 | |
45034273 SS |
948 | $cache->cache(ob_get_contents()); |
949 | ob_end_flush(); | |
950 | exit; | |
951 | } | |
952 | ||
953 | // "Daily" page. | |
954 | function showDaily() | |
955 | { | |
9f15ca9e | 956 | $LINKSDB = new LinkDB( |
9c8752a2 | 957 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
958 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
959 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
960 | ); | |
45034273 SS |
961 | |
962 | $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. | |
963 | if (isset($_GET['day'])) $day=$_GET['day']; | |
bb8f712d | 964 | |
45034273 SS |
965 | $days = $LINKSDB->days(); |
966 | $i = array_search($day,$days); | |
f3db3774 | 967 | if ($i===false) { $i=count($days)-1; $day=$days[$i]; } |
bb8f712d KT |
968 | $previousday=''; |
969 | $nextday=''; | |
45034273 SS |
970 | if ($i!==false) |
971 | { | |
f3db3774 | 972 | if ($i>=1) $previousday=$days[$i-1]; |
45034273 SS |
973 | if ($i<count($days)-1) $nextday=$days[$i+1]; |
974 | } | |
975 | ||
9186ab95 V |
976 | try { |
977 | $linksToDisplay = $LINKSDB->filterDay($day); | |
978 | } catch (Exception $exc) { | |
979 | error_log($exc); | |
d1e2f8e5 | 980 | $linksToDisplay = array(); |
9186ab95 V |
981 | } |
982 | ||
45034273 SS |
983 | // We pre-format some fields for proper output. |
984 | foreach($linksToDisplay as $key=>$link) | |
985 | { | |
5f85fcd8 | 986 | |
dd62b9ba SS |
987 | $taglist = explode(' ',$link['tags']); |
988 | uasort($taglist, 'strcasecmp'); | |
989 | $linksToDisplay[$key]['taglist']=$taglist; | |
5f85fcd8 | 990 | $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); |
bb8f712d | 991 | $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); |
a5752e77 | 992 | $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); |
45034273 | 993 | } |
bb8f712d | 994 | |
45034273 | 995 | /* We need to spread the articles on 3 columns. |
ad6c27b7 | 996 | I did not want to use a JavaScript lib like http://masonry.desandro.com/ |
bb8f712d | 997 | so I manually spread entries with a simple method: I roughly evaluate the |
45034273 SS |
998 | height of a div according to title and description length. |
999 | */ | |
1000 | $columns=array(array(),array(),array()); // Entries to display, for each column. | |
1001 | $fill=array(0,0,0); // Rough estimate of columns fill. | |
1002 | foreach($linksToDisplay as $key=>$link) | |
1003 | { | |
1004 | // Roughly estimate length of entry (by counting characters) | |
1005 | // Title: 30 chars = 1 line. 1 line is 30 pixels height. | |
1006 | // Description: 836 characters gives roughly 342 pixel height. | |
ad6c27b7 | 1007 | // This is not perfect, but it's usually OK. |
45034273 SS |
1008 | $length=strlen($link['title'])+(342*strlen($link['description']))/836; |
1009 | if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. | |
1010 | // Then put in column which is the less filled: | |
1011 | $smallest=min($fill); // find smallest value in array. | |
1012 | $index=array_search($smallest,$fill); // find index of this smallest value. | |
1013 | array_push($columns[$index],$link); // Put entry in this column. | |
1014 | $fill[$index]+=$length; | |
1015 | } | |
1016 | $PAGE = new pageBuilder; | |
1017 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1018 | $PAGE->assign('linkcount',count($LINKSDB)); | |
cae64e52 | 1019 | $PAGE->assign('cols', $columns); |
4de71445 | 1020 | $PAGE->assign('day',linkdate2timestamp($day.'_000000')); |
45034273 | 1021 | $PAGE->assign('previousday',$previousday); |
bb8f712d | 1022 | $PAGE->assign('nextday',$nextday); |
45034273 SS |
1023 | $PAGE->renderPage('daily'); |
1024 | exit; | |
1025 | } | |
1026 | ||
1027 | ||
1028 | // ------------------------------------------------------------------------------------------ | |
1029 | // Render HTML page (according to URL parameters and user rights) | |
1030 | function renderPage() | |
1031 | { | |
9f15ca9e | 1032 | $LINKSDB = new LinkDB( |
9c8752a2 | 1033 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
1034 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
1035 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
1036 | ); | |
45034273 SS |
1037 | |
1038 | // -------- Display login form. | |
1039 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) | |
1040 | { | |
1041 | if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli | |
1042 | $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. | |
1043 | $PAGE = new pageBuilder; | |
1044 | $PAGE->assign('token',$token); | |
5f85fcd8 | 1045 | $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); |
45034273 SS |
1046 | $PAGE->renderPage('loginform'); |
1047 | exit; | |
1048 | } | |
1049 | // -------- User wants to logout. | |
1050 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
1051 | { | |
1052 | invalidateCaches(); | |
1053 | logout(); | |
1054 | header('Location: ?'); | |
1055 | exit; | |
1056 | } | |
1057 | ||
1058 | // -------- Picture wall | |
1059 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) | |
1060 | { | |
ad6c27b7 | 1061 | // Optionally filter the results: |
45034273 SS |
1062 | $links=array(); |
1063 | if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); | |
1064 | elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1065 | else $links = $LINKSDB; | |
f3db3774 | 1066 | |
45034273 SS |
1067 | $body=''; |
1068 | $linksToDisplay=array(); | |
1069 | ||
1070 | // Get only links which have a thumbnail. | |
1071 | foreach($links as $link) | |
1072 | { | |
5f85fcd8 | 1073 | $permalink='?'.escape(smallhash($link['linkdate'])); |
45034273 SS |
1074 | $thumb=lazyThumbnail($link['url'],$permalink); |
1075 | if ($thumb!='') // Only output links which have a thumbnail. | |
1076 | { | |
1077 | $link['thumbnail']=$thumb; // Thumbnail HTML code. | |
45034273 SS |
1078 | $linksToDisplay[]=$link; // Add to array. |
1079 | } | |
1080 | } | |
f3db3774 | 1081 | |
45034273 SS |
1082 | $PAGE = new pageBuilder; |
1083 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1084 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1085 | $PAGE->renderPage('picwall'); | |
1086 | exit; | |
1087 | } | |
1088 | ||
1089 | // -------- Tag cloud | |
1090 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) | |
1091 | { | |
1092 | $tags= $LINKSDB->allTags(); | |
a037ac69 | 1093 | |
45034273 SS |
1094 | // We sort tags alphabetically, then choose a font size according to count. |
1095 | // First, find max value. | |
1096 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
1097 | ksort($tags); | |
1098 | $tagList=array(); | |
1099 | foreach($tags as $key=>$value) | |
1e3b2740 | 1100 | // 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 | 1101 | { |
1e3b2740 | 1102 | $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); |
45034273 SS |
1103 | } |
1104 | $PAGE = new pageBuilder; | |
1105 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1106 | $PAGE->assign('tags',$tagList); | |
1107 | $PAGE->renderPage('tagcloud'); | |
bb8f712d | 1108 | exit; |
45034273 SS |
1109 | } |
1110 | ||
1111 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
1112 | if (isset($_GET['addtag'])) | |
1113 | { | |
1114 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
1115 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER | |
1116 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
732e683b | 1117 | |
775803a0 A |
1118 | // Prevent redirection loop |
1119 | if (isset($params['addtag'])) { | |
1120 | unset($params['addtag']); | |
1121 | } | |
1122 | ||
732e683b FE |
1123 | // Check if this tag is already in the search query and ignore it if it is. |
1124 | // Each tag is always separated by a space | |
6ac95d9c A |
1125 | if (isset($params['searchtags'])) { |
1126 | $current_tags = explode(' ', $params['searchtags']); | |
1127 | } else { | |
1128 | $current_tags = array(); | |
1129 | } | |
732e683b FE |
1130 | $addtag = true; |
1131 | foreach ($current_tags as $value) { | |
1132 | if ($value === $_GET['addtag']) { | |
1133 | $addtag = false; | |
1134 | break; | |
1135 | } | |
1136 | } | |
1137 | // Append the tag if necessary | |
1138 | if (empty($params['searchtags'])) { | |
1139 | $params['searchtags'] = trim($_GET['addtag']); | |
1140 | } | |
1141 | else if ($addtag) { | |
1142 | $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); | |
1143 | } | |
1144 | ||
45034273 SS |
1145 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1146 | header('Location: ?'.http_build_query($params)); | |
1147 | exit; | |
1148 | } | |
1149 | ||
1150 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
775803a0 | 1151 | if (isset($_GET['removetag'])) { |
45034273 | 1152 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. |
775803a0 A |
1153 | if (empty($_SERVER['HTTP_REFERER'])) { |
1154 | header('Location: ?'); | |
1155 | exit; | |
1156 | } | |
1157 | ||
1158 | // In case browser does not send HTTP_REFERER | |
1159 | parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params); | |
1160 | ||
1161 | // Prevent redirection loop | |
1162 | if (isset($params['removetag'])) { | |
1163 | unset($params['removetag']); | |
1164 | } | |
1165 | ||
1166 | if (isset($params['searchtags'])) { | |
45034273 SS |
1167 | $tags = explode(' ',$params['searchtags']); |
1168 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
775803a0 A |
1169 | if (count($tags)==0) { |
1170 | unset($params['searchtags']); | |
1171 | } else { | |
1172 | $params['searchtags'] = implode(' ',$tags); | |
1173 | } | |
45034273 SS |
1174 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1175 | } | |
1176 | header('Location: ?'.http_build_query($params)); | |
1177 | exit; | |
1178 | } | |
1179 | ||
1180 | // -------- User wants to change the number of links per page (linksperpage=...) | |
775803a0 A |
1181 | if (isset($_GET['linksperpage'])) { |
1182 | if (is_numeric($_GET['linksperpage'])) { | |
1183 | $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); | |
1184 | } | |
1185 | ||
1186 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'))); | |
45034273 SS |
1187 | exit; |
1188 | } | |
bb8f712d | 1189 | |
45034273 | 1190 | // -------- User wants to see only private links (toggle) |
775803a0 A |
1191 | if (isset($_GET['privateonly'])) { |
1192 | if (empty($_SESSION['privateonly'])) { | |
1193 | $_SESSION['privateonly'] = 1; // See only private links | |
1194 | } else { | |
45034273 SS |
1195 | unset($_SESSION['privateonly']); // See all links |
1196 | } | |
775803a0 A |
1197 | |
1198 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'))); | |
45034273 SS |
1199 | exit; |
1200 | } | |
1201 | ||
1202 | // -------- Handle other actions allowed for non-logged in users: | |
1203 | if (!isLoggedIn()) | |
1204 | { | |
ad6c27b7 | 1205 | // User tries to post new link but is not logged in: |
45034273 SS |
1206 | // Show login screen, then redirect to ?post=... |
1207 | if (isset($_GET['post'])) | |
1208 | { | |
a1795ddc | 1209 | 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($_GET['source']):'')); // Redirect to login page, then back to post link. |
45034273 SS |
1210 | exit; |
1211 | } | |
aedc912d FE |
1212 | |
1213 | // Same case as above except that user tried to access ?do=addlink without being logged in | |
1214 | // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. | |
1215 | if (isset($_GET['do']) && $_GET['do'] === 'addlink') { | |
1216 | header('Location: ?do=login&post='); | |
1217 | exit; | |
1218 | } | |
1219 | ||
45034273 SS |
1220 | $PAGE = new pageBuilder; |
1221 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1222 | $PAGE->renderPage('linklist'); | |
ad6c27b7 | 1223 | exit; // Never remove this one! All operations below are reserved for logged in user. |
45034273 SS |
1224 | } |
1225 | ||
1226 | // -------- All other functions are reserved for the registered user: | |
1227 | ||
1228 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
1229 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
1230 | { | |
1231 | $PAGE = new pageBuilder; | |
1232 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1233 | $PAGE->assign('pageabsaddr',indexUrl()); | |
1234 | $PAGE->renderPage('tools'); | |
1235 | exit; | |
1236 | } | |
1237 | ||
1238 | // -------- User wants to change his/her password. | |
1239 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) | |
1240 | { | |
1241 | if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); | |
1242 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
1243 | { | |
ad6c27b7 | 1244 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1245 | |
1246 | // Make sure old password is correct. | |
1247 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
fe16b01e | 1248 | if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } |
45034273 SS |
1249 | // Save new password |
1250 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1251 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
dd484b90 A |
1252 | try { |
1253 | writeConfig($GLOBALS, isLoggedIn()); | |
1254 | } | |
1255 | catch(Exception $e) { | |
1256 | error_log( | |
1257 | 'ERROR while writing config file after changing password.' . PHP_EOL . | |
1258 | $e->getMessage() | |
1259 | ); | |
1260 | ||
1261 | // TODO: do not handle exceptions/errors in JS. | |
1262 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1263 | exit; | |
1264 | } | |
fe16b01e | 1265 | echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1266 | exit; |
1267 | } | |
1268 | else // show the change password form. | |
1269 | { | |
1270 | $PAGE = new pageBuilder; | |
1271 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1272 | $PAGE->assign('token',getToken()); | |
1273 | $PAGE->renderPage('changepassword'); | |
1274 | exit; | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | // -------- User wants to change configuration | |
1279 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) | |
1280 | { | |
1281 | if (!empty($_POST['title']) ) | |
1282 | { | |
ad6c27b7 | 1283 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1284 | $tz = 'UTC'; |
1285 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
d1e2f8e5 | 1286 | if (isTimeZoneValid($_POST['continent'],$_POST['city'])) |
45034273 SS |
1287 | $tz = $_POST['continent'].'/'.$_POST['city']; |
1288 | $GLOBALS['timezone'] = $tz; | |
1289 | $GLOBALS['title']=$_POST['title']; | |
ebb2880d | 1290 | $GLOBALS['titleLink']=$_POST['titleLink']; |
45034273 SS |
1291 | $GLOBALS['redirector']=$_POST['redirector']; |
1292 | $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); | |
bb8f712d | 1293 | $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); |
ed5b38dd | 1294 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); |
329e0768 | 1295 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
caee7ff9 | 1296 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']); |
dd484b90 A |
1297 | try { |
1298 | writeConfig($GLOBALS, isLoggedIn()); | |
1299 | } | |
1300 | catch(Exception $e) { | |
1301 | error_log( | |
1302 | 'ERROR while writing config file after configuration update.' . PHP_EOL . | |
1303 | $e->getMessage() | |
1304 | ); | |
1305 | ||
1306 | // TODO: do not handle exceptions/errors in JS. | |
1307 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1308 | exit; | |
1309 | } | |
fe16b01e | 1310 | echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1311 | exit; |
1312 | } | |
1313 | else // Show the configuration form. | |
1314 | { | |
1315 | $PAGE = new pageBuilder; | |
1316 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1317 | $PAGE->assign('token',getToken()); | |
5f85fcd8 A |
1318 | $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] ); |
1319 | $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] ); | |
d1e2f8e5 V |
1320 | list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']); |
1321 | $PAGE->assign('timezone_form', $timezone_form); | |
45034273 SS |
1322 | $PAGE->assign('timezone_js',$timezone_js); |
1323 | $PAGE->renderPage('configure'); | |
1324 | exit; | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | // -------- User wants to rename a tag or delete it | |
1329 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) | |
1330 | { | |
1331 | if (empty($_POST['fromtag'])) | |
1332 | { | |
1333 | $PAGE = new pageBuilder; | |
1334 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1335 | $PAGE->assign('token',getToken()); | |
bdd1715b | 1336 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1337 | $PAGE->renderPage('changetag'); |
1338 | exit; | |
1339 | } | |
1340 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1341 | ||
1342 | // Delete a tag: | |
1343 | if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) | |
1344 | { | |
1345 | $needle=trim($_POST['fromtag']); | |
ad6c27b7 | 1346 | $linksToAlter = $LINKSDB->filterTags($needle,true); // True for case-sensitive tag search. |
45034273 SS |
1347 | foreach($linksToAlter as $key=>$value) |
1348 | { | |
1349 | $tags = explode(' ',trim($value['tags'])); | |
1350 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
1351 | $value['tags']=trim(implode(' ',$tags)); | |
1352 | $LINKSDB[$key]=$value; | |
1353 | } | |
ad6c27b7 | 1354 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1355 | echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; |
45034273 SS |
1356 | exit; |
1357 | } | |
1358 | ||
1359 | // Rename a tag: | |
1360 | if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) | |
1361 | { | |
1362 | $needle=trim($_POST['fromtag']); | |
1363 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
1364 | foreach($linksToAlter as $key=>$value) | |
1365 | { | |
1366 | $tags = explode(' ',trim($value['tags'])); | |
ad6c27b7 | 1367 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. |
45034273 SS |
1368 | $value['tags']=trim(implode(' ',$tags)); |
1369 | $LINKSDB[$key]=$value; | |
1370 | } | |
ad6c27b7 | 1371 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1372 | echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; |
45034273 SS |
1373 | exit; |
1374 | } | |
1375 | } | |
1376 | ||
ad6c27b7 | 1377 | // -------- User wants to add a link without using the bookmarklet: Show form. |
45034273 SS |
1378 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) |
1379 | { | |
1380 | $PAGE = new pageBuilder; | |
1381 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1382 | $PAGE->renderPage('addlink'); | |
1383 | exit; | |
1384 | } | |
1385 | ||
1386 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
1387 | if (isset($_POST['save_edit'])) | |
1388 | { | |
ad6c27b7 | 1389 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 | 1390 | $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. |
781e8aad | 1391 | $tags = implode(' ', array_unique(explode(' ', $tags))); // Remove duplicates. |
45034273 | 1392 | $linkdate=$_POST['lf_linkdate']; |
feebc6d4 | 1393 | $url = trim($_POST['lf_url']); |
f81139c9 | 1394 | if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:')) |
feebc6d4 SS |
1395 | $url = 'http://'.$url; |
1396 | $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
45034273 SS |
1397 | 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags)); |
1398 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. | |
1399 | $LINKSDB[$linkdate] = $link; | |
ad6c27b7 | 1400 | $LINKSDB->savedb(); // Save to disk. |
45034273 SS |
1401 | pubsubhub(); |
1402 | ||
1403 | // If we are called from the bookmarklet, we must close the popup: | |
d33c5d4c | 1404 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
775803a0 A |
1405 | $returnurl = ( !empty($_POST['returnurl']) ? escape($_POST['returnurl']) : '?' ); |
1406 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. | |
1407 | $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); | |
1408 | header('Location: '. $location); // After saving the link, redirect to the page the user was on. | |
45034273 SS |
1409 | exit; |
1410 | } | |
1411 | ||
1412 | // -------- User clicked the "Cancel" button when editing a link. | |
1413 | if (isset($_POST['cancel_edit'])) | |
1414 | { | |
ad6c27b7 | 1415 | // If we are called from the bookmarklet, we must close the popup: |
d33c5d4c | 1416 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
45034273 | 1417 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
b342b2a4 | 1418 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. |
775803a0 | 1419 | $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); |
45034273 SS |
1420 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. |
1421 | exit; | |
1422 | } | |
1423 | ||
ad6c27b7 | 1424 | // -------- User clicked the "Delete" button when editing a link: Delete link from database. |
45034273 SS |
1425 | if (isset($_POST['delete_link'])) |
1426 | { | |
1427 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1428 | // We do not need to ask for confirmation: | |
ad6c27b7 | 1429 | // - confirmation is handled by JavaScript |
45034273 SS |
1430 | // - we are protected from XSRF by the token. |
1431 | $linkdate=$_POST['lf_linkdate']; | |
1432 | unset($LINKSDB[$linkdate]); | |
1433 | $LINKSDB->savedb(); // save to disk | |
1434 | ||
1435 | // If we are called from the bookmarklet, we must close the popup: | |
d33c5d4c | 1436 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
d528433d | 1437 | // Pick where we're going to redirect |
1438 | // ============================================================= | |
1439 | // Basically, we can't redirect to where we were previously if it was a permalink | |
1440 | // or an edit_link, because it would 404. | |
1441 | // Cases: | |
1442 | // - / : nothing in $_GET, redirect to self | |
1443 | // - /?page : redirect to self | |
d33c5d4c | 1444 | // - /?searchterm : redirect to self (there might be other links) |
d528433d | 1445 | // - /?searchtags : redirect to self |
1446 | // - /permalink : redirect to / (the link does not exist anymore) | |
1447 | // - /?edit_link : redirect to / (the link does not exist anymore) | |
1448 | // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self | |
1449 | // redirect is not satisfied, and only then redirect to / | |
1450 | $location = "?"; | |
1451 | // Self redirection | |
775803a0 A |
1452 | if (count($_GET) == 0 |
1453 | || isset($_GET['page']) | |
1454 | || isset($_GET['searchterm']) | |
1455 | || isset($_GET['searchtags']) | |
1456 | ) { | |
d528433d | 1457 | if (isset($_POST['returnurl'])) { |
1458 | $location = $_POST['returnurl']; // Handle redirects given by the form | |
775803a0 A |
1459 | } else { |
1460 | $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link')); | |
d528433d | 1461 | } |
1462 | } | |
1463 | ||
1464 | header('Location: ' . $location); // After deleting the link, redirect to appropriate location | |
45034273 SS |
1465 | exit; |
1466 | } | |
1467 | ||
1468 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
1469 | if (isset($_GET['edit_link'])) | |
1470 | { | |
1471 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
1472 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
1473 | $PAGE = new pageBuilder; | |
1474 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1475 | $PAGE->assign('link',$link); | |
1476 | $PAGE->assign('link_is_new',false); | |
1477 | $PAGE->assign('token',getToken()); // XSRF protection. | |
5f85fcd8 | 1478 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '')); |
bdd1715b | 1479 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1480 | $PAGE->renderPage('editlink'); |
1481 | exit; | |
1482 | } | |
1483 | ||
1484 | // -------- User want to post a new link: Display link edit form. | |
1485 | if (isset($_GET['post'])) | |
1486 | { | |
1487 | $url=$_GET['post']; | |
1488 | ||
403a1994 | 1489 | |
ad2a397c | 1490 | // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook... |
cbecab77 | 1491 | $annoyingpatterns = array('/[\?&]utm_source=[^&]*/', |
1492 | '/[\?&]utm_campaign=[^&]*/', | |
1493 | '/[\?&]utm_medium=[^&]*/', | |
1494 | '/#xtor=RSS-[^&]*/', | |
1495 | '/[\?&]fb_[^&]*/', | |
1496 | '/[\?&]__scoop[^&]*/', | |
1497 | '/#tk\.rss_all\?/', | |
1498 | '/[\?&]action_ref_map=[^&]*/', | |
1499 | '/[\?&]action_type_map=[^&]*/', | |
1500 | '/[\?&]action_object_map=[^&]*/', | |
1501 | '/[\?&]utm_content=[^&]*/', | |
1502 | '/[\?&]fb=[^&]*/', | |
1503 | '/[\?&]xtor=[^&]*/' | |
1504 | ); | |
ad2a397c | 1505 | foreach($annoyingpatterns as $pattern) |
1506 | { | |
403a1994 | 1507 | $url = preg_replace($pattern, "", $url); |
ad2a397c | 1508 | } |
45034273 SS |
1509 | |
1510 | $link_is_new = false; | |
1511 | $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link) | |
1512 | if (!$link) | |
1513 | { | |
1514 | $link_is_new = true; // This is a new link | |
1515 | $linkdate = strval(date('Ymd_His')); | |
1516 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). | |
7b2186a6 | 1517 | $description = (empty($_GET['description']) ? '' : $_GET['description']); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] |
3fac0a52 | 1518 | $tags = (empty($_GET['tags']) ? '' : $_GET['tags'] ); // Get tags if it was provided in URL |
732e683b | 1519 | $private = (!empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0); // Get private if it was provided in URL |
45034273 | 1520 | if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; |
ad6c27b7 | 1521 | // 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 |
1522 | if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') |
1523 | { | |
1524 | list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. | |
1525 | // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html | |
002ef0e5 SS |
1526 | if (strpos($status,'200 OK')!==false) |
1527 | { | |
1528 | // Look for charset in html header. | |
1529 | preg_match('#<meta .*charset=.*>#Usi', $data, $meta); | |
732e683b | 1530 | |
002ef0e5 SS |
1531 | // If found, extract encoding. |
1532 | if (!empty($meta[0])) | |
1533 | { | |
1534 | // Get encoding specified in header. | |
1535 | preg_match('#charset="?(.*)"#si', $meta[0], $enc); | |
1536 | // If charset not found, use utf-8. | |
1537 | $html_charset = (!empty($enc[1])) ? strtolower($enc[1]) : 'utf-8'; | |
1538 | } | |
1539 | else { $html_charset = 'utf-8'; } | |
732e683b | 1540 | |
002ef0e5 SS |
1541 | // Extract title |
1542 | $title = html_extract_title($data); | |
1543 | if (!empty($title)) | |
1544 | { | |
1545 | // Re-encode title in utf-8 if necessary. | |
1546 | $title = ($html_charset == 'iso-8859-1') ? utf8_encode($title) : $title; | |
1547 | } | |
1548 | } | |
45034273 | 1549 | } |
27646ca5 | 1550 | if ($url=='') // In case of empty URL, this is just a text (with a link that points to itself) |
1551 | { | |
1552 | $url='?'.smallHash($linkdate); | |
1553 | $title='Note: '; | |
1554 | } | |
3fac0a52 | 1555 | $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>$private); |
45034273 SS |
1556 | } |
1557 | ||
1558 | $PAGE = new pageBuilder; | |
1559 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1560 | $PAGE->assign('link',$link); | |
1561 | $PAGE->assign('link_is_new',$link_is_new); | |
1562 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1563 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); | |
d33c5d4c | 1564 | $PAGE->assign('source',(isset($_GET['source']) ? $_GET['source'] : '')); |
bdd1715b | 1565 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1566 | $PAGE->renderPage('editlink'); |
1567 | exit; | |
1568 | } | |
1569 | ||
1570 | // -------- Export as Netscape Bookmarks HTML file. | |
1571 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export')) | |
1572 | { | |
1573 | if (empty($_GET['what'])) | |
1574 | { | |
1575 | $PAGE = new pageBuilder; | |
1576 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1577 | $PAGE->renderPage('export'); | |
1578 | exit; | |
1579 | } | |
1580 | $exportWhat=$_GET['what']; | |
ad6c27b7 | 1581 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); |
45034273 SS |
1582 | |
1583 | header('Content-Type: text/html; charset=utf-8'); | |
1584 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); | |
1585 | $currentdate=date('Y/m/d H:i:s'); | |
1586 | echo <<<HTML | |
1587 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
1588 | <!-- This is an automatically generated file. | |
1589 | It will be read and overwritten. | |
1590 | DO NOT EDIT! --> | |
1591 | <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} --> | |
1592 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
1593 | <TITLE>Bookmarks</TITLE> | |
1594 | <H1>Bookmarks</H1> | |
1595 | HTML; | |
1596 | foreach($LINKSDB as $link) | |
1597 | { | |
1598 | if ($exportWhat=='all' || | |
1599 | ($exportWhat=='private' && $link['private']!=0) || | |
1600 | ($exportWhat=='public' && $link['private']==0)) | |
1601 | { | |
5f85fcd8 A |
1602 | echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; |
1603 | if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"'; | |
1604 | echo '>'.$link['title']."</A>\n"; | |
1605 | if ($link['description']!='') echo '<DD>'.$link['description']."\n"; | |
45034273 SS |
1606 | } |
1607 | } | |
1608 | exit; | |
1609 | } | |
1610 | ||
1611 | // -------- User is uploading a file for import | |
1612 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1613 | { | |
1614 | // If file is too big, some form field may be missing. | |
1615 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1616 | { | |
1617 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
5f85fcd8 | 1618 | echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>'; |
45034273 SS |
1619 | exit; |
1620 | } | |
1621 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1622 | importFile(); | |
1623 | exit; | |
1624 | } | |
1625 | ||
1626 | // -------- Show upload/import dialog: | |
1627 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import')) | |
1628 | { | |
1629 | $PAGE = new pageBuilder; | |
1630 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1631 | $PAGE->assign('token',getToken()); | |
1632 | $PAGE->assign('maxfilesize',getMaxFileSize()); | |
1633 | $PAGE->renderPage('import'); | |
1634 | exit; | |
1635 | } | |
1636 | ||
1637 | // -------- Otherwise, simply display search form and links: | |
1638 | $PAGE = new pageBuilder; | |
45034273 SS |
1639 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display |
1640 | $PAGE->renderPage('linklist'); | |
1641 | exit; | |
1642 | } | |
1643 | ||
1644 | // ----------------------------------------------------------------------------------------------- | |
1645 | // Process the import file form. | |
1646 | function importFile() | |
1647 | { | |
1648 | if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } | |
9f15ca9e | 1649 | $LINKSDB = new LinkDB( |
9c8752a2 | 1650 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
1651 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
1652 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
1653 | ); | |
45034273 SS |
1654 | $filename=$_FILES['filetoupload']['name']; |
1655 | $filesize=$_FILES['filetoupload']['size']; | |
1656 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
ad6c27b7 | 1657 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? |
1658 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? | |
45034273 SS |
1659 | $import_count=0; |
1660 | ||
1661 | // Sniff file type: | |
1662 | $type='unknown'; | |
1663 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1664 | ||
1665 | // Then import the bookmarks. | |
1666 | if ($type=='netscape') | |
1667 | { | |
1668 | // This is a standard Netscape-style bookmark file. | |
ad6c27b7 | 1669 | // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. |
45034273 SS |
1670 | foreach(explode('<DT>',$data) as $html) // explode is very fast |
1671 | { | |
1672 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1673 | $d = explode('<DD>',$html); | |
1674 | if (startswith($d[0],'<A ')) | |
1675 | { | |
1676 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) | |
1677 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
1678 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); | |
1679 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
1680 | $raw_add_date=0; | |
1681 | foreach($matches as $m) | |
1682 | { | |
1683 | $attr=$m[1]; $value=$m[2]; | |
1684 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); | |
fc93ae1d AA |
1685 | elseif ($attr=='ADD_DATE') |
1686 | { | |
1687 | $raw_add_date=intval($value); | |
1688 | if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds | |
1689 | } | |
45034273 SS |
1690 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); |
1691 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); | |
1692 | } | |
1693 | if ($link['url']!='') | |
1694 | { | |
1695 | if ($private==1) $link['private']=1; | |
1696 | $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. | |
1697 | if ($dblink==false) | |
1698 | { // Link not in database, let's import it... | |
1699 | if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE | |
1700 | ||
1701 | // Make sure date/time is not already used by another link. | |
1702 | // (Some bookmark files have several different links with the same ADD_DATE) | |
ad6c27b7 | 1703 | // We increment date by 1 second until we find a date which is not used in DB. |
45034273 SS |
1704 | // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) |
1705 | while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. | |
1706 | $link['linkdate']=date('Ymd_His',$raw_add_date); | |
1707 | $LINKSDB[$link['linkdate']] = $link; | |
1708 | $import_count++; | |
1709 | } | |
ad6c27b7 | 1710 | else // Link already present in database. |
45034273 SS |
1711 | { |
1712 | if ($overwrite) | |
1713 | { // If overwrite is required, we import link data, except date/time. | |
1714 | $link['linkdate']=$dblink['linkdate']; | |
1715 | $LINKSDB[$link['linkdate']] = $link; | |
1716 | $import_count++; | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | } | |
1721 | } | |
1722 | } | |
1723 | $LINKSDB->savedb(); | |
1724 | ||
fe16b01e | 1725 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; |
45034273 SS |
1726 | } |
1727 | else | |
1728 | { | |
fe16b01e | 1729 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; |
45034273 SS |
1730 | } |
1731 | } | |
1732 | ||
1733 | // ----------------------------------------------------------------------------------------------- | |
1734 | // Template for the list of links (<div id="linklist">) | |
1735 | // This function fills all the necessary fields in the $PAGE for the template 'linklist.html' | |
1736 | function buildLinkList($PAGE,$LINKSDB) | |
1737 | { | |
1738 | // ---- Filter link database according to parameters | |
1739 | $linksToDisplay=array(); | |
1740 | $search_type=''; | |
1741 | $search_crits=''; | |
1742 | if (isset($_GET['searchterm'])) // Fulltext search | |
1743 | { | |
1744 | $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm'])); | |
5f85fcd8 | 1745 | $search_crits=escape(trim($_GET['searchterm'])); |
45034273 SS |
1746 | $search_type='fulltext'; |
1747 | } | |
1748 | elseif (isset($_GET['searchtags'])) // Search by tag | |
1749 | { | |
1750 | $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
5f85fcd8 | 1751 | $search_crits=explode(' ',escape(trim($_GET['searchtags']))); |
45034273 SS |
1752 | $search_type='tags'; |
1753 | } | |
1754 | elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL | |
1755 | { | |
1756 | $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6)); | |
1757 | if (count($linksToDisplay)==0) | |
1758 | { | |
1759 | header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); | |
1760 | echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.'; | |
1dcbe296 | 1761 | echo '<br>Would you mind <a href="?">clicking here</a>?'; |
45034273 SS |
1762 | exit; |
1763 | } | |
1764 | $search_type='permalink'; | |
1765 | } | |
1766 | else | |
ad6c27b7 | 1767 | $linksToDisplay = $LINKSDB; // Otherwise, display without filtering. |
bb8f712d | 1768 | |
8fa1ebd6 | 1769 | |
45034273 SS |
1770 | // Option: Show only private links |
1771 | if (!empty($_SESSION['privateonly'])) | |
1772 | { | |
1773 | $tmp = array(); | |
1774 | foreach($linksToDisplay as $linkdate=>$link) | |
1775 | { | |
1776 | if ($link['private']!=0) $tmp[$linkdate]=$link; | |
1777 | } | |
1778 | $linksToDisplay=$tmp; | |
1779 | } | |
1780 | ||
1781 | // ---- Handle paging. | |
ad6c27b7 | 1782 | /* 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 |
1783 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " |
1784 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
1785 | */ | |
ad6c27b7 | 1786 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks PHP. |
45034273 SS |
1787 | |
1788 | // If there is only a single link, we change on-the-fly the title of the page. | |
1789 | if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title']; | |
1790 | ||
1791 | // Select articles according to paging. | |
1792 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
1793 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
1794 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
1795 | $page = ( $page<1 ? 1 : $page ); | |
1796 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
1797 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
1798 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
1799 | $linkDisp=array(); // Links to display | |
1800 | while ($i<$end && $i<count($keys)) | |
1801 | { | |
1802 | $link = $linksToDisplay[$keys[$i]]; | |
5f85fcd8 | 1803 | $link['description']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); |
a5752e77 A |
1804 | $title=$link['title']; |
1805 | $classLi = $i%2!=0 ? '' : 'publicLinkHightLight'; | |
45034273 | 1806 | $link['class'] = ($link['private']==0 ? $classLi : 'private'); |
bec18701 | 1807 | $link['timestamp']=linkdate2timestamp($link['linkdate']); |
a5752e77 A |
1808 | $taglist = explode(' ',$link['tags']); |
1809 | uasort($taglist, 'strcasecmp'); | |
dd62b9ba | 1810 | $link['taglist']=$taglist; |
b47f515a FE |
1811 | |
1812 | if ($link["url"][0] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this. | |
1813 | strlen($link["url"]) === 7) { | |
1814 | $link["url"] = indexUrl() . $link["url"]; | |
1815 | } | |
d33c5d4c | 1816 | |
45034273 SS |
1817 | $linkDisp[$keys[$i]] = $link; |
1818 | $i++; | |
1819 | } | |
bb8f712d | 1820 | |
45034273 SS |
1821 | // Compute paging navigation |
1822 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
1823 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
1824 | $paging=''; | |
1825 | $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags; | |
1826 | $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags; | |
1827 | ||
bb8f712d KT |
1828 | $token = ''; if (isLoggedIn()) $token=getToken(); |
1829 | ||
45034273 SS |
1830 | // Fill all template fields. |
1831 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1832 | $PAGE->assign('previous_page_url',$previous_page_url); | |
1833 | $PAGE->assign('next_page_url',$next_page_url); | |
1834 | $PAGE->assign('page_current',$page); | |
1835 | $PAGE->assign('page_max',$pagecount); | |
1836 | $PAGE->assign('result_count',count($linksToDisplay)); | |
1837 | $PAGE->assign('search_type',$search_type); | |
bb8f712d | 1838 | $PAGE->assign('search_crits',$search_crits); |
ad6c27b7 | 1839 | $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // Optional redirector URL. |
45034273 SS |
1840 | $PAGE->assign('token',$token); |
1841 | $PAGE->assign('links',$linkDisp); | |
65d62517 | 1842 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1843 | return; |
1844 | } | |
1845 | ||
1846 | // Compute the thumbnail for a link. | |
bb8f712d | 1847 | // |
ad6c27b7 | 1848 | // With a link to the original URL. |
45034273 | 1849 | // Understands various services (youtube.com...) |
ad6c27b7 | 1850 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
1851 | // $href = if provided, this URL will be followed instead of $url |
1852 | // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt) | |
1853 | // Some of them may be missing. | |
1854 | // Return an empty array if no thumbnail available. | |
1855 | function computeThumbnail($url,$href=false) | |
1856 | { | |
1857 | if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array(); | |
1858 | if ($href==false) $href=$url; | |
1859 | ||
1860 | // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link. | |
ad6c27b7 | 1861 | // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg ) |
45034273 SS |
1862 | // ^^^^^^^^^^^ ^^^^^^^^^^^ |
1863 | $domain = parse_url($url,PHP_URL_HOST); | |
1864 | if ($domain=='youtube.com' || $domain=='www.youtube.com') | |
1865 | { | |
1866 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail | |
1a663a0f | 1867 | if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg', |
45034273 SS |
1868 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
1869 | } | |
1870 | if ($domain=='youtu.be') // Youtube short links | |
1871 | { | |
1872 | $path = parse_url($url,PHP_URL_PATH); | |
1a663a0f | 1873 | return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg', |
bb8f712d | 1874 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
45034273 SS |
1875 | } |
1876 | if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting | |
1877 | { | |
1878 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename. | |
1879 | if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']), | |
bb8f712d KT |
1880 | 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail'); |
1881 | } | |
1882 | ||
45034273 SS |
1883 | if ($domain=='imgur.com') |
1884 | { | |
1885 | $path = parse_url($url,PHP_URL_PATH); | |
1886 | if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available. | |
1a663a0f | 1887 | if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg', |
45034273 | 1888 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1a663a0f | 1889 | if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg', |
45034273 SS |
1890 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1891 | ||
1a663a0f | 1892 | if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg', |
45034273 SS |
1893 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1894 | } | |
1895 | if ($domain=='i.imgur.com') | |
1896 | { | |
1897 | $pi = pathinfo(parse_url($url,PHP_URL_PATH)); | |
1a663a0f | 1898 | if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg', |
45034273 SS |
1899 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1900 | } | |
1901 | if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com') | |
1902 | { | |
1903 | if (strpos($url,'dailymotion.com/video/')!==false) | |
1904 | { | |
1905 | $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url); | |
1906 | return array('src'=>$thumburl, | |
1907 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail'); | |
1908 | } | |
1909 | } | |
1910 | if (endsWith($domain,'.imageshack.us')) | |
1911 | { | |
1912 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1913 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1914 | { | |
1915 | $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext; | |
1916 | return array('src'=>$thumburl, | |
1917 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail'); | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL. | |
1922 | // So we deport the thumbnail generation in order not to slow down page generation | |
1923 | // (and we also cache the thumbnail) | |
1924 | ||
1925 | if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache. | |
1926 | ||
1927 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com') | |
1928 | || $domain=='vimeo.com' | |
1929 | || $domain=='ted.com' || endsWith($domain,'.ted.com') | |
1930 | || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com') | |
1931 | ) | |
1932 | { | |
1933 | if ($domain=='vimeo.com') | |
ad6c27b7 | 1934 | { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric) |
45034273 SS |
1935 | $path = parse_url($url,PHP_URL_PATH); |
1936 | if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL. | |
1937 | } | |
1938 | if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
ad6c27b7 | 1939 | { // Make sure this URL points to a single comic (/xxx... where xxx is numeric) |
45034273 SS |
1940 | $path = parse_url($url,PHP_URL_PATH); |
1941 | if (!preg_match('!/\d+.+?!',$path)) return array(); | |
1942 | } | |
1943 | if ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
ad6c27b7 | 1944 | { // Make sure this TED URL points to a video (/talks/...) |
45034273 SS |
1945 | $path = parse_url($url,PHP_URL_PATH); |
1946 | if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL. | |
1947 | } | |
1948 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
5f85fcd8 | 1949 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
45034273 SS |
1950 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
1951 | } | |
1952 | ||
1953 | // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif | |
1954 | // Technically speaking, we should download ALL links and check their Content-Type to see if they are images. | |
1955 | // But using the extension will do. | |
1956 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1957 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1958 | { | |
1959 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
5f85fcd8 | 1960 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
bb8f712d | 1961 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
45034273 SS |
1962 | } |
1963 | return array(); // No thumbnail. | |
1964 | ||
1965 | } | |
1966 | ||
1967 | ||
1968 | // Returns the HTML code to display a thumbnail for a link | |
1969 | // with a link to the original URL. | |
1970 | // Understands various services (youtube.com...) | |
ad6c27b7 | 1971 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
1972 | // $href = if provided, this URL will be followed instead of $url |
1973 | // Returns '' if no thumbnail available. | |
1974 | function thumbnail($url,$href=false) | |
1975 | { | |
1976 | $t = computeThumbnail($url,$href); | |
1977 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
bb8f712d | 1978 | |
5f85fcd8 A |
1979 | $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"'; |
1980 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
1981 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
1982 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
1983 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 SS |
1984 | $html.='></a>'; |
1985 | return $html; | |
1986 | } | |
1987 | ||
45034273 SS |
1988 | // Returns the HTML code to display a thumbnail for a link |
1989 | // for the picture wall (using lazy image loading) | |
1990 | // Understands various services (youtube.com...) | |
ad6c27b7 | 1991 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
1992 | // $href = if provided, this URL will be followed instead of $url |
1993 | // Returns '' if no thumbnail available. | |
1994 | function lazyThumbnail($url,$href=false) | |
1995 | { | |
bb8f712d | 1996 | $t = computeThumbnail($url,$href); |
45034273 SS |
1997 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. |
1998 | ||
5f85fcd8 | 1999 | $html='<a href="'.escape($t['href']).'">'; |
bb8f712d | 2000 | |
34047d23 | 2001 | // Lazy image |
5f85fcd8 | 2002 | $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"'; |
858c5c2b | 2003 | |
5f85fcd8 A |
2004 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; |
2005 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2006 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2007 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2008 | $html.='>'; |
bb8f712d | 2009 | |
ad6c27b7 | 2010 | // No-JavaScript fallback. |
5f85fcd8 A |
2011 | $html.='<noscript><img src="'.escape($t['src']).'"'; |
2012 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
2013 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2014 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2015 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2016 | $html.='></noscript></a>'; |
bb8f712d | 2017 | |
45034273 SS |
2018 | return $html; |
2019 | } | |
2020 | ||
2021 | ||
2022 | // ----------------------------------------------------------------------------------------------- | |
2023 | // Installation | |
2024 | // This function should NEVER be called if the file data/config.php exists. | |
2025 | function install() | |
2026 | { | |
2027 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. | |
f6a6ca0a | 2028 | if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); |
45034273 | 2029 | |
f37664a2 SS |
2030 | |
2031 | // This part makes sure sessions works correctly. | |
2032 | // (Because on some hosts, session.save_path may not be set correctly, | |
2033 | // or we may not have write access to it.) | |
2034 | if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) | |
2035 | { // Step 2: Check if data in session is correct. | |
2036 | echo '<pre>Sessions do not seem to work correctly on your server.<br>'; | |
2037 | echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>'; | |
01ec1791 | 2038 | echo 'It currently points to '.session_save_path().'<br>'; |
2039 | echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'; | |
2040 | echo '<br><a href="?">Click to try again.</a></pre>'; | |
f37664a2 SS |
2041 | die; |
2042 | } | |
2043 | if (!isset($_SESSION['session_tested'])) | |
2044 | { // Step 1 : Try to store data in session and reload page. | |
2045 | $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. | |
2046 | header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data. | |
2047 | } | |
2048 | if (isset($_GET['test_session'])) | |
ad6c27b7 | 2049 | { // Step 3: Sessions are OK. Remove test parameter from URL. |
f37664a2 SS |
2050 | header('Location: '.indexUrl()); |
2051 | } | |
2052 | ||
2053 | ||
45034273 SS |
2054 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) |
2055 | { | |
2056 | $tz = 'UTC'; | |
d1e2f8e5 V |
2057 | if (!empty($_POST['continent']) && !empty($_POST['city'])) { |
2058 | if (isTimeZoneValid($_POST['continent'], $_POST['city'])) { | |
45034273 | 2059 | $tz = $_POST['continent'].'/'.$_POST['city']; |
d1e2f8e5 V |
2060 | } |
2061 | } | |
45034273 SS |
2062 | $GLOBALS['timezone'] = $tz; |
2063 | // Everything is ok, let's create config file. | |
2064 | $GLOBALS['login'] = $_POST['setlogin']; | |
2065 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
2066 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
5f85fcd8 | 2067 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(indexUrl()) : $_POST['title'] ); |
329e0768 | 2068 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
dd484b90 A |
2069 | try { |
2070 | writeConfig($GLOBALS, isLoggedIn()); | |
2071 | } | |
2072 | catch(Exception $e) { | |
2073 | error_log( | |
2074 | 'ERROR while writing config file after installation.' . PHP_EOL . | |
2075 | $e->getMessage() | |
2076 | ); | |
2077 | ||
2078 | // TODO: do not handle exceptions/errors in JS. | |
2079 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>'; | |
2080 | exit; | |
2081 | } | |
fe16b01e | 2082 | echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>'; |
45034273 SS |
2083 | exit; |
2084 | } | |
2085 | ||
2086 | // Display config form: | |
d1e2f8e5 V |
2087 | list($timezone_form, $timezone_js) = generateTimeZoneForm(); |
2088 | $timezone_html = ''; | |
2089 | if ($timezone_form != '') { | |
2090 | $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
2091 | } | |
bb8f712d | 2092 | |
45034273 SS |
2093 | $PAGE = new pageBuilder; |
2094 | $PAGE->assign('timezone_html',$timezone_html); | |
2095 | $PAGE->assign('timezone_js',$timezone_js); | |
2096 | $PAGE->renderPage('install'); | |
2097 | exit; | |
2098 | } | |
2099 | ||
3385af12 LM |
2100 | if (!function_exists('json_encode')) { |
2101 | function json_encode($data) { | |
2102 | switch ($type = gettype($data)) { | |
2103 | case 'NULL': | |
2104 | return 'null'; | |
2105 | case 'boolean': | |
2106 | return ($data ? 'true' : 'false'); | |
2107 | case 'integer': | |
2108 | case 'double': | |
2109 | case 'float': | |
2110 | return $data; | |
2111 | case 'string': | |
2112 | return '"' . addslashes($data) . '"'; | |
2113 | case 'object': | |
2114 | $data = get_object_vars($data); | |
2115 | case 'array': | |
2116 | $output_index_count = 0; | |
2117 | $output_indexed = array(); | |
2118 | $output_associative = array(); | |
2119 | foreach ($data as $key => $value) { | |
2120 | $output_indexed[] = json_encode($value); | |
2121 | $output_associative[] = json_encode($key) . ':' . json_encode($value); | |
2122 | if ($output_index_count !== NULL && $output_index_count++ !== $key) { | |
2123 | $output_index_count = NULL; | |
2124 | } | |
2125 | } | |
2126 | if ($output_index_count !== NULL) { | |
2127 | return '[' . implode(',', $output_indexed) . ']'; | |
2128 | } else { | |
2129 | return '{' . implode(',', $output_associative) . '}'; | |
2130 | } | |
2131 | default: | |
2132 | return ''; // Not supported | |
2133 | } | |
2134 | } | |
2135 | } | |
45034273 | 2136 | |
dd484b90 | 2137 | |
45034273 | 2138 | |
ad6c27b7 | 2139 | /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL, |
45034273 | 2140 | I have deported the thumbnail URL code generation here, otherwise this would slow down page generation. |
ad6c27b7 | 2141 | The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail. |
2142 | This function is called by passing the URL: | |
45034273 | 2143 | http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL] |
ad6c27b7 | 2144 | [URL] is the URL of the link (e.g. a flickr page) |
45034273 SS |
2145 | [HMAC] is the signature for the [URL] (so that these URL cannot be forged). |
2146 | The function below will fetch the image from the webservice and store it in the cache. | |
2147 | */ | |
2148 | function genThumbnail() | |
2149 | { | |
2150 | // Make sure the parameters in the URL were generated by us. | |
2151 | $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); | |
ad6c27b7 | 2152 | if ($sign!=$_GET['hmac']) die('Naughty boy!'); |
45034273 SS |
2153 | |
2154 | // Let's see if we don't already have the image for this URL in the cache. | |
2155 | $thumbname=hash('sha1',$_GET['url']).'.jpg'; | |
2156 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) | |
2157 | { // We have the thumbnail, just serve it: | |
2158 | header('Content-Type: image/jpeg'); | |
2159 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); | |
2160 | return; | |
2161 | } | |
2162 | // We may also serve a blank image (if service did not respond) | |
2163 | $blankname=hash('sha1',$_GET['url']).'.gif'; | |
2164 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) | |
2165 | { | |
2166 | header('Content-Type: image/gif'); | |
2167 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); | |
2168 | return; | |
2169 | } | |
2170 | ||
2171 | // Otherwise, generate the thumbnail. | |
2172 | $url = $_GET['url']; | |
2173 | $domain = parse_url($url,PHP_URL_HOST); | |
2174 | ||
2175 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) | |
2176 | { | |
ad6c27b7 | 2177 | // Crude replacement to handle new flickr domain policy (They prefer www. now) |
45034273 SS |
2178 | $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url); |
2179 | ||
2180 | // Is this a link to an image, or to a flickr page ? | |
2181 | $imageurl=''; | |
2182 | if (endswith(parse_url($url,PHP_URL_PATH),'.jpg')) | |
ad6c27b7 | 2183 | { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg |
45034273 SS |
2184 | preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches); |
2185 | if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg'; | |
2186 | } | |
ad6c27b7 | 2187 | else // This is a flickr page (html) |
45034273 SS |
2188 | { |
2189 | list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page. | |
2190 | if (strpos($httpstatus,'200 OK')!==false) | |
2191 | { | |
ad6c27b7 | 2192 | // flickr now nicely provides the URL of the thumbnail in each flickr page. |
45034273 SS |
2193 | preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!',$data,$matches); |
2194 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2195 | ||
2196 | // In albums (and some other pages), the link rel="image_src" is not provided, | |
2197 | // but flickr provides: | |
2198 | // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" /> | |
2199 | if ($imageurl=='') | |
2200 | { | |
2201 | preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!',$data,$matches); | |
2202 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2203 | } | |
2204 | } | |
2205 | } | |
2206 | ||
2207 | if ($imageurl!='') | |
2208 | { // Let's download the image. | |
2209 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); // Image is 240x120, so 10 seconds to download should be enough. | |
2210 | if (strpos($httpstatus,'200 OK')!==false) | |
2211 | { | |
2212 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2213 | header('Content-Type: image/jpeg'); | |
2214 | echo $data; | |
2215 | return; | |
2216 | } | |
2217 | } | |
2218 | } | |
2219 | ||
2220 | elseif ($domain=='vimeo.com' ) | |
2221 | { | |
2222 | // This is more complex: we have to perform a HTTP request, then parse the result. | |
ad6c27b7 | 2223 | // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098 |
45034273 | 2224 | $vid = substr(parse_url($url,PHP_URL_PATH),1); |
5f85fcd8 | 2225 | list($httpstatus,$headers,$data) = getHTTP('https://vimeo.com/api/v2/video/'.escape($vid).'.php',5); |
45034273 SS |
2226 | if (strpos($httpstatus,'200 OK')!==false) |
2227 | { | |
2228 | $t = unserialize($data); | |
2229 | $imageurl = $t[0]['thumbnail_medium']; | |
2230 | // Then we download the image and serve it to our client. | |
2231 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); | |
2232 | if (strpos($httpstatus,'200 OK')!==false) | |
2233 | { | |
2234 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2235 | header('Content-Type: image/jpeg'); | |
2236 | echo $data; | |
2237 | return; | |
2238 | } | |
2239 | } | |
2240 | } | |
2241 | ||
2242 | elseif ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
2243 | { | |
2244 | // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page | |
2245 | // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html | |
2246 | // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" /> | |
bb8f712d | 2247 | list($httpstatus,$headers,$data) = getHTTP($url,5); |
45034273 SS |
2248 | if (strpos($httpstatus,'200 OK')!==false) |
2249 | { | |
2250 | // Extract the link to the thumbnail | |
2251 | preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); | |
2252 | if (!empty($matches[1])) | |
2253 | { // Let's download the image. | |
2254 | $imageurl=$matches[1]; | |
2255 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2256 | if (strpos($httpstatus,'200 OK')!==false) | |
2257 | { | |
2258 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2259 | file_put_contents($filepath,$data); // Save image to cache. | |
2260 | if (resizeImage($filepath)) | |
2261 | { | |
2262 | header('Content-Type: image/jpeg'); | |
2263 | echo file_get_contents($filepath); | |
2264 | return; | |
2265 | } | |
2266 | } | |
2267 | } | |
2268 | } | |
2269 | } | |
bb8f712d | 2270 | |
45034273 SS |
2271 | elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) |
2272 | { | |
2273 | // There is no thumbnail available for xkcd comics, so download the whole image and resize it. | |
2274 | // http://xkcd.com/327/ | |
2275 | // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" /> | |
2276 | list($httpstatus,$headers,$data) = getHTTP($url,5); | |
2277 | if (strpos($httpstatus,'200 OK')!==false) | |
2278 | { | |
2279 | // Extract the link to the thumbnail | |
2280 | preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches); | |
2281 | if (!empty($matches[1])) | |
2282 | { // Let's download the image. | |
2283 | $imageurl=$matches[1]; | |
2284 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2285 | if (strpos($httpstatus,'200 OK')!==false) | |
2286 | { | |
2287 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2288 | file_put_contents($filepath,$data); // Save image to cache. | |
2289 | if (resizeImage($filepath)) | |
2290 | { | |
2291 | header('Content-Type: image/jpeg'); | |
2292 | echo file_get_contents($filepath); | |
2293 | return; | |
2294 | } | |
2295 | } | |
2296 | } | |
2297 | } | |
bb8f712d | 2298 | } |
45034273 SS |
2299 | |
2300 | else | |
2301 | { | |
2302 | // For all other domains, we try to download the image and make a thumbnail. | |
2303 | list($httpstatus,$headers,$data) = getHTTP($url,30); // We allow 30 seconds max to download (and downloads are limited to 4 Mb) | |
2304 | if (strpos($httpstatus,'200 OK')!==false) | |
2305 | { | |
2306 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2307 | file_put_contents($filepath,$data); // Save image to cache. | |
2308 | if (resizeImage($filepath)) | |
2309 | { | |
2310 | header('Content-Type: image/jpeg'); | |
2311 | echo file_get_contents($filepath); | |
2312 | return; | |
2313 | } | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | ||
2318 | // Otherwise, return an empty image (8x8 transparent gif) | |
2319 | $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7'); | |
2320 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice. | |
2321 | header('Content-Type: image/gif'); | |
2322 | echo $blankgif; | |
2323 | } | |
2324 | ||
2325 | // Make a thumbnail of the image (to width: 120 pixels) | |
2326 | // Returns true if success, false otherwise. | |
2327 | function resizeImage($filepath) | |
2328 | { | |
2329 | if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible. | |
2330 | ||
2331 | // Trick: some stupid people rename GIF as JPEG... or else. | |
2332 | // So we really try to open each image type whatever the extension is. | |
2333 | $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type. | |
2334 | $im=false; | |
2335 | $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough. | |
2336 | $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath); | |
2337 | $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath); | |
2338 | if (!$im) return false; // Unable to open image (corrupted or not an image) | |
2339 | $w = imagesx($im); | |
2340 | $h = imagesy($im); | |
2341 | $ystart = 0; $yheight=$h; | |
2342 | if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; } | |
2343 | $nw = 120; // Desired width | |
2344 | $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height. | |
2345 | // Resize image: | |
2346 | $im2 = imagecreatetruecolor($nw,$nh); | |
2347 | imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight); | |
2348 | imageinterlace($im2,true); // For progressive JPEG. | |
2349 | $tempname=$filepath.'_TEMP.jpg'; | |
2350 | imagejpeg($im2, $tempname, 90); | |
2351 | imagedestroy($im); | |
2352 | imagedestroy($im2); | |
9e820906 | 2353 | unlink($filepath); |
45034273 SS |
2354 | rename($tempname,$filepath); // Overwrite original picture with thumbnail. |
2355 | return true; | |
2356 | } | |
2357 | ||
2358 | // Invalidate caches when the database is changed or the user logs out. | |
ad6c27b7 | 2359 | // (e.g. tags cache). |
45034273 SS |
2360 | function invalidateCaches() |
2361 | { | |
2362 | unset($_SESSION['tags']); // Purge cache attached to session. | |
2363 | pageCache::purgeCache(); // Purge page cache shared by sessions. | |
2364 | } | |
2365 | ||
dd484b90 A |
2366 | try { |
2367 | mergeDeprecatedConfig($GLOBALS, isLoggedIn()); | |
2368 | } catch(Exception $e) { | |
2369 | error_log( | |
2370 | 'ERROR while merging deprecated options.php file.' . PHP_EOL . | |
2371 | $e->getMessage() | |
2372 | ); | |
2373 | } | |
2374 | ||
45034273 SS |
2375 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database. |
2376 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
2377 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; } | |
2378 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; } | |
bb8f712d | 2379 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; } |
45034273 SS |
2380 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE']; |
2381 | renderPage(); | |
03545ef6 | 2382 | ?> |