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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 | // ----------------------------------------------------------------------------------------------- |
afd7b77b V |
8 | |
9 | // Set 'UTC' as the default timezone if it is not defined in php.ini | |
10 | // See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone | |
11 | if (date_default_timezone_get() == '') { | |
12 | date_default_timezone_set('UTC'); | |
13 | } | |
cb49ab94 | 14 | |
45034273 | 15 | // ----------------------------------------------------------------------------------------------- |
dd484b90 A |
16 | // Hardcoded parameter (These parameters can be overwritten by editing the file /data/config.php) |
17 | // You should not touch any code below (or at your own risks!) | |
45034273 SS |
18 | $GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory |
19 | $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password) | |
20 | $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file. | |
21 | $GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page. | |
22 | $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans. | |
23 | $GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures. | |
24 | $GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes) | |
25 | $GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login | |
26 | $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in. | |
1099d8fc | 27 | $GLOBALS['config']['SHOW_ATOM'] = false; // If true, an extra "ATOM feed" button will be displayed in the toolbar |
45034273 SS |
28 | $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links. |
29 | $GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr) | |
30 | $GLOBALS['config']['PAGECACHE'] = 'pagecache'; // Page cache directory. | |
ad6c27b7 | 31 | $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage. |
45034273 | 32 | $GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable. |
2f2aa06b V |
33 | $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!) |
34 | $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!) | |
45034273 SS |
35 | $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli. |
36 | $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours | |
37 | // Note: You must have publisher.php in the same directory as Shaarli index.php | |
d2f51763 | 38 | $GLOBALS['config']['ARCHIVE_ORG'] = false; // For each link, add a link to an archived version on archive.org |
ed5b38dd | 39 | $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 | 40 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = false; |
45034273 | 41 | // ----------------------------------------------------------------------------------------------- |
7d4263e1 | 42 | define('shaarli_version','0.5.0'); |
ae00595b CH |
43 | // http://server.com/x/shaarli --> /shaarli/ |
44 | define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); | |
45034273 SS |
45 | |
46 | // Force cookie path (but do not change lifetime) | |
47 | $cookie=session_get_cookie_params(); | |
2d9fab88 | 48 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 49 | session_set_cookie_params($cookie['lifetime'],$cookiedir,$_SERVER['SERVER_NAME']); // Set default cookie expiration and path. |
45034273 | 50 | |
f37664a2 SS |
51 | // Set session parameters on server side. |
52 | define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired. | |
53 | ini_set('session.use_cookies', 1); // Use cookies to store session. | |
ad6c27b7 | 54 | ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL). |
55 | ini_set('session.use_trans_sid', false); // Prevent PHP form using sessionID in URL if cookies are disabled. | |
f37664a2 SS |
56 | session_name('shaarli'); |
57 | if (session_id() == '') session_start(); // Start session if needed (Some server auto-start sessions). | |
58 | ||
45034273 SS |
59 | // PHP Settings |
60 | ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. | |
61 | ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). | |
62 | ini_set('post_max_size', '16M'); | |
63 | ini_set('upload_max_filesize', '16M'); | |
45034273 SS |
64 | error_reporting(E_ALL^E_WARNING); // See all error except warnings. |
65 | //error_reporting(-1); // See all errors (for debugging only) | |
66 | ||
50c9a12e V |
67 | // User configuration |
68 | if (is_file($GLOBALS['config']['CONFIG_FILE'])) { | |
69 | require_once $GLOBALS['config']['CONFIG_FILE']; | |
70 | } | |
71 | ||
ca74886f V |
72 | // Shaarli library |
73 | require_once 'application/LinkDB.php'; | |
d1e2f8e5 | 74 | require_once 'application/TimeZone.php'; |
ca74886f | 75 | require_once 'application/Utils.php'; |
dd484b90 | 76 | require_once 'application/Config.php'; |
ca74886f | 77 | |
d1e2f8e5 V |
78 | // Ensure the PHP version is supported |
79 | try { | |
80 | checkPHPVersion('5.3', PHP_VERSION); | |
81 | } catch(Exception $e) { | |
82 | header('Content-Type: text/plain; charset=utf-8'); | |
83 | echo $e->getMessage(); | |
84 | exit; | |
85 | } | |
86 | ||
45034273 | 87 | include "inc/rain.tpl.class.php"; //include Rain TPL |
25f5c59d | 88 | raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory |
25f5c59d | 89 | raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory |
45034273 SS |
90 | |
91 | ob_start(); // Output buffering for the page cache. | |
92 | ||
93 | ||
94 | // In case stupid admin has left magic_quotes enabled in php.ini: | |
95 | if (get_magic_quotes_gpc()) | |
96 | { | |
97 | function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; } | |
98 | $_POST = array_map('stripslashes_deep', $_POST); | |
99 | $_GET = array_map('stripslashes_deep', $_GET); | |
100 | $_COOKIE = array_map('stripslashes_deep', $_COOKIE); | |
101 | } | |
102 | ||
103 | // Prevent caching on client side or proxy: (yes, it's ugly) | |
104 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); | |
105 | header("Cache-Control: no-store, no-cache, must-revalidate"); | |
106 | header("Cache-Control: post-check=0, pre-check=0", false); | |
107 | header("Pragma: no-cache"); | |
108 | ||
ad6c27b7 | 109 | // Directories creations (Note that your web host may require different rights than 705.) |
60b83e7c | 110 | if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>'); |
45034273 | 111 | |
45034273 | 112 | // Handling of old config file which do not have the new parameters. |
5f85fcd8 | 113 | if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(indexUrl()); |
45034273 | 114 | if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); |
8a80e4fe | 115 | if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; |
45034273 | 116 | if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; |
bb8f712d | 117 | if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; |
ebb2880d | 118 | if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; |
858c5c2b | 119 | // I really need to rewrite Shaarli with a proper configuation manager. |
45034273 | 120 | |
8a80e4fe | 121 | // Run config screen if first run: |
50c9a12e V |
122 | if (! is_file($GLOBALS['config']['CONFIG_FILE'])) { |
123 | install(); | |
124 | } | |
8a80e4fe | 125 | |
5f85fcd8 A |
126 | $GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : ''; |
127 | $GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : ''; | |
128 | $GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : ''; | |
8a80e4fe | 129 | |
ae00595b CH |
130 | // a token depending of deployment salt, user password, and the current ip |
131 | define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); | |
8a80e4fe | 132 | |
45034273 SS |
133 | autoLocale(); // Sniff browser language and set date format accordingly. |
134 | header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. | |
135 | ||
ff69d87e FE |
136 | //================================================================================================== |
137 | // Checking session state (i.e. is the user still logged in) | |
138 | //================================================================================================== | |
139 | ||
140 | function setup_login_state() { | |
141 | $userIsLoggedIn = false; // By default, we do not consider the user as logged in; | |
142 | $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. | |
143 | if ($GLOBALS['config']['OPEN_SHAARLI']) { | |
144 | $userIsLoggedIn = true; | |
145 | } | |
146 | if (!isset($GLOBALS['login'])) { | |
147 | $userIsLoggedIn = false; // Shaarli is not configured yet. | |
148 | $loginFailure = true; | |
149 | } | |
150 | if (isset($_COOKIE['shaarli_staySignedIn']) && | |
151 | $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && | |
152 | !$loginFailure) | |
153 | { | |
154 | fillSessionInfo(); | |
155 | $userIsLoggedIn = true; | |
156 | } | |
157 | // If session does not exist on server side, or IP address has changed, or session has expired, logout. | |
158 | if (empty($_SESSION['uid']) || | |
159 | ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || | |
160 | time() >= $_SESSION['expires_on']) | |
161 | { | |
162 | logout(); | |
163 | $userIsLoggedIn = false; | |
164 | $loginFailure = true; | |
165 | } | |
166 | if (!empty($_SESSION['longlastingsession'])) { | |
167 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked. | |
168 | } | |
169 | else { | |
170 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date. | |
171 | } | |
172 | if (!$loginFailure) { | |
173 | $userIsLoggedIn = true; | |
174 | } | |
175 | ||
176 | return $userIsLoggedIn; | |
177 | } | |
ff69d87e | 178 | $userIsLoggedIn = setup_login_state(); |
45034273 SS |
179 | |
180 | // Checks if an update is available for Shaarli. | |
181 | // (at most once a day, and only for registered user.) | |
182 | // Output: '' = no new version. | |
183 | // other= the available version. | |
184 | function checkUpdate() | |
185 | { | |
186 | if (!isLoggedIn()) return ''; // Do not check versions for visitors. | |
329e0768 | 187 | if (empty($GLOBALS['config']['ENABLE_UPDATECHECK'])) return ''; // Do not check if the user doesn't want to. |
45034273 SS |
188 | |
189 | // Get latest version number at most once a day. | |
190 | if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL']))) | |
191 | { | |
192 | $version=shaarli_version; | |
dbcad740 | 193 | list($httpstatus,$headers,$data) = getHTTP('https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.php',2); |
194 | if (strpos($httpstatus,'200 OK')!==false) $version=str_replace(' */ ?>','',str_replace('<?php /* ','',$data)); | |
ad6c27b7 | 195 | // If failed, never mind. We don't want to bother the user with that. |
45034273 SS |
196 | file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date |
197 | } | |
198 | // Compare versions: | |
199 | $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']); | |
200 | if (version_compare($newestversion,shaarli_version)==1) return $newestversion; | |
201 | return ''; | |
202 | } | |
203 | ||
204 | ||
205 | // ----------------------------------------------------------------------------------------------- | |
206 | // Simple cache system (mainly for the RSS/ATOM feeds). | |
207 | ||
208 | class pageCache | |
209 | { | |
210 | private $url; // Full URL of the page to cache (typically the value returned by pageUrl()) | |
ad6c27b7 | 211 | private $shouldBeCached; // boolean: Should this url be cached? |
212 | private $filename; // Name of the cache file for this url. | |
45034273 | 213 | |
bb8f712d | 214 | /* |
ad6c27b7 | 215 | $url = URL (typically the value returned by pageUrl()) |
45034273 SS |
216 | $shouldBeCached = boolean. If false, the cache will be disabled. |
217 | */ | |
218 | public function __construct($url,$shouldBeCached) | |
219 | { | |
220 | $this->url = $url; | |
221 | $this->filename = $GLOBALS['config']['PAGECACHE'].'/'.sha1($url).'.cache'; | |
222 | $this->shouldBeCached = $shouldBeCached; | |
bb8f712d | 223 | } |
45034273 SS |
224 | |
225 | // If the page should be cached and a cached version exists, | |
226 | // returns the cached version (otherwise, return null). | |
227 | public function cachedVersion() | |
228 | { | |
229 | if (!$this->shouldBeCached) return null; | |
230 | if (is_file($this->filename)) { return file_get_contents($this->filename); exit; } | |
231 | return null; | |
232 | } | |
233 | ||
234 | // Put a page in the cache. | |
235 | public function cache($page) | |
236 | { | |
237 | if (!$this->shouldBeCached) return; | |
45034273 SS |
238 | file_put_contents($this->filename,$page); |
239 | } | |
240 | ||
241 | // Purge the whole cache. | |
242 | // (call with pageCache::purgeCache()) | |
243 | public static function purgeCache() | |
244 | { | |
245 | if (is_dir($GLOBALS['config']['PAGECACHE'])) | |
246 | { | |
247 | $handler = opendir($GLOBALS['config']['PAGECACHE']); | |
64bf914a | 248 | if ($handler!==false) |
45034273 | 249 | { |
bb8f712d | 250 | while (($filename = readdir($handler))!==false) |
45034273 SS |
251 | { |
252 | if (endsWith($filename,'.cache')) { unlink($GLOBALS['config']['PAGECACHE'].'/'.$filename); } | |
253 | } | |
254 | closedir($handler); | |
255 | } | |
256 | } | |
257 | } | |
258 | ||
259 | } | |
260 | ||
261 | ||
262 | // ----------------------------------------------------------------------------------------------- | |
263 | // Log to text file | |
264 | function logm($message) | |
265 | { | |
266 | $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; | |
267 | file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND); | |
268 | } | |
269 | ||
ad6c27b7 | 270 | // In a string, converts URLs to clickable links. |
45034273 SS |
271 | // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 |
272 | function text2clickable($url) | |
273 | { | |
274 | $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; | |
30b0672d | 275 | return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url); |
45034273 SS |
276 | } |
277 | ||
278 | // This function inserts where relevant so that multiple spaces are properly displayed in HTML | |
279 | // even in the absence of <pre> (This is used in description to keep text formatting) | |
280 | function keepMultipleSpaces($text) | |
281 | { | |
282 | return str_replace(' ',' ',$text); | |
bb8f712d | 283 | |
45034273 SS |
284 | } |
285 | // ------------------------------------------------------------------------------------------ | |
286 | // Sniff browser language to display dates in the right format automatically. | |
287 | // (Note that is may not work on your server if the corresponding local is not installed.) | |
288 | function autoLocale() | |
289 | { | |
8438a2e5 | 290 | $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE |
ad6c27b7 | 291 | if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3" |
292 | { // (It's a bit crude, but it works very well. Preferred language is always presented first.) | |
8438a2e5 A |
293 | if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) { |
294 | $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : ''); | |
da49603b | 295 | $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc), |
d33c5d4c M |
296 | $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc), |
297 | $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8', | |
da49603b | 298 | $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc); |
8438a2e5 | 299 | } |
45034273 | 300 | } |
8438a2e5 | 301 | setlocale(LC_TIME, $attempts); // LC_TIME = Set local for date/time format only. |
45034273 SS |
302 | } |
303 | ||
304 | // ------------------------------------------------------------------------------------------ | |
305 | // PubSubHubbub protocol support (if enabled) [UNTESTED] | |
306 | // (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ ) | |
307 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php'; | |
308 | function pubsubhub() | |
309 | { | |
310 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
311 | { | |
312 | $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']); | |
313 | $topic_url = array ( | |
314 | indexUrl().'?do=atom', | |
315 | indexUrl().'?do=rss' | |
316 | ); | |
317 | $p->publish_update($topic_url); | |
318 | } | |
319 | } | |
320 | ||
321 | // ------------------------------------------------------------------------------------------ | |
322 | // Session management | |
45034273 SS |
323 | |
324 | // Returns the IP address of the client (Used to prevent session cookie hijacking.) | |
325 | function allIPs() | |
326 | { | |
327 | $ip = $_SERVER["REMOTE_ADDR"]; | |
328 | // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy. | |
329 | if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; } | |
330 | if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; } | |
331 | return $ip; | |
332 | } | |
333 | ||
ae00595b | 334 | function fillSessionInfo() { |
ad6c27b7 | 335 | $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid) |
ae00595b CH |
336 | $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked. |
337 | $_SESSION['username']=$GLOBALS['login']; | |
338 | $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration. | |
339 | } | |
340 | ||
45034273 SS |
341 | // Check that user/password is correct. |
342 | function check_auth($login,$password) | |
343 | { | |
344 | $hash = sha1($password.$login.$GLOBALS['salt']); | |
345 | if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash']) | |
346 | { // Login/password is correct. | |
ae00595b | 347 | fillSessionInfo(); |
45034273 SS |
348 | logm('Login successful'); |
349 | return True; | |
350 | } | |
351 | logm('Login failed for user '.$login); | |
352 | return False; | |
353 | } | |
354 | ||
355 | // Returns true if the user is logged in. | |
356 | function isLoggedIn() | |
357 | { | |
ff69d87e FE |
358 | global $userIsLoggedIn; |
359 | return $userIsLoggedIn; | |
45034273 SS |
360 | } |
361 | ||
362 | // Force logout. | |
ff69d87e FE |
363 | function logout() { |
364 | if (isset($_SESSION)) { | |
365 | unset($_SESSION['uid']); | |
366 | unset($_SESSION['ip']); | |
367 | unset($_SESSION['username']); | |
368 | unset($_SESSION['privateonly']); | |
369 | } | |
370 | setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH); | |
ae00595b | 371 | } |
45034273 SS |
372 | |
373 | ||
374 | // ------------------------------------------------------------------------------------------ | |
375 | // Brute force protection system | |
376 | // Several consecutive failed logins will ban the IP address for 30 minutes. | |
377 | 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?>"); | |
378 | include $GLOBALS['config']['IPBANS_FILENAME']; | |
379 | // Signal a failed login. Will ban the IP if too many failures: | |
380 | function ban_loginFailed() | |
381 | { | |
382 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
383 | if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0; | |
384 | $gb['FAILURES'][$ip]++; | |
385 | if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1)) | |
386 | { | |
387 | $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION']; | |
388 | logm('IP address banned from login'); | |
389 | } | |
390 | $GLOBALS['IPBANS'] = $gb; | |
391 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
392 | } | |
393 | ||
394 | // Signals a successful login. Resets failed login counter. | |
395 | function ban_loginOk() | |
396 | { | |
397 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
398 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
399 | $GLOBALS['IPBANS'] = $gb; | |
400 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
401 | } | |
402 | ||
403 | // Checks if the user CAN login. If 'true', the user can try to login. | |
404 | function ban_canLogin() | |
405 | { | |
406 | $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS']; | |
407 | if (isset($gb['BANS'][$ip])) | |
408 | { | |
409 | // User is banned. Check if the ban has expired: | |
410 | if ($gb['BANS'][$ip]<=time()) | |
411 | { // Ban expired, user can try to login again. | |
412 | logm('Ban lifted.'); | |
413 | unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]); | |
414 | file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"); | |
415 | return true; // Ban has expired, user can login. | |
416 | } | |
417 | return false; // User is banned. | |
418 | } | |
419 | return true; // User is not banned. | |
420 | } | |
421 | ||
422 | // ------------------------------------------------------------------------------------------ | |
423 | // Process login form: Check if login/password is correct. | |
424 | if (isset($_POST['login'])) | |
425 | { | |
426 | if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.'); | |
427 | if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password']))) | |
ad6c27b7 | 428 | { // Login/password is OK. |
45034273 SS |
429 | ban_loginOk(); |
430 | // If user wants to keep the session cookie even after the browser closes: | |
431 | if (!empty($_POST['longlastingsession'])) | |
432 | { | |
ae00595b | 433 | setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH); |
45034273 SS |
434 | $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year) |
435 | $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side. | |
2d9fab88 SS |
436 | |
437 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; | |
2f32d074 | 438 | session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side |
ad6c27b7 | 439 | // Note: Never forget the trailing slash on the cookie path! |
45034273 SS |
440 | session_regenerate_id(true); // Send cookie with new expiration date to browser. |
441 | } | |
442 | else // Standard session expiration (=when browser closes) | |
443 | { | |
2d9fab88 | 444 | $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/'; |
2f32d074 | 445 | session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes" |
45034273 SS |
446 | session_regenerate_id(true); |
447 | } | |
5fbabbb9 | 448 | |
45034273 | 449 | // Optional redirect after login: |
5fbabbb9 A |
450 | if (isset($_GET['post'])) { |
451 | $uri = '?post='. urlencode($_GET['post']); | |
452 | foreach (array('description', 'source', 'title') as $param) { | |
453 | if (!empty($_GET[$param])) { | |
454 | $uri .= '&'.$param.'='.urlencode($_GET[$param]); | |
455 | } | |
456 | } | |
457 | header('Location: '. $uri); | |
458 | exit; | |
459 | } | |
460 | ||
461 | if (isset($_GET['edit_link'])) { | |
462 | header('Location: ?edit_link='. escape($_GET['edit_link'])); | |
463 | exit; | |
464 | } | |
465 | ||
466 | if (isset($_POST['returnurl'])) { | |
467 | // Prevent loops over login screen. | |
468 | if (strpos($_POST['returnurl'], 'do=login') === false) { | |
469 | header('Location: '. escape($_POST['returnurl'])); | |
470 | exit; | |
471 | } | |
45034273 SS |
472 | } |
473 | header('Location: ?'); exit; | |
474 | } | |
475 | else | |
476 | { | |
477 | ban_loginFailed(); | |
705f8355 | 478 | $redir = ''; |
5fbabbb9 A |
479 | if (isset($_GET['post'])) { |
480 | $redir = '?post=' . urlencode($_GET['post']); | |
481 | foreach (array('description', 'source', 'title') as $param) { | |
482 | if (!empty($_GET[$param])) { | |
483 | $redir .= '&' . $param . '=' . urlencode($_GET[$param]); | |
484 | } | |
485 | } | |
486 | } | |
fe16b01e | 487 | echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen. |
45034273 SS |
488 | exit; |
489 | } | |
490 | } | |
491 | ||
492 | // ------------------------------------------------------------------------------------------ | |
493 | // Misc utility functions: | |
494 | ||
495 | // Returns the server URL (including port and http/https), without path. | |
ad6c27b7 | 496 | // e.g. "http://myserver.com:8080" |
45034273 SS |
497 | // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL. |
498 | function serverUrl() | |
499 | { | |
500 | $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443'; // HTTPS detection. | |
501 | $serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]); | |
2f32d074 | 502 | return 'http'.($https?'s':'').'://'.$_SERVER['SERVER_NAME'].$serverport; |
45034273 SS |
503 | } |
504 | ||
505 | // Returns the absolute URL of current script, without the query. | |
ad6c27b7 | 506 | // (e.g. http://sebsauvage.net/links/) |
45034273 SS |
507 | function indexUrl() |
508 | { | |
9e975d86 SS |
509 | $scriptname = $_SERVER["SCRIPT_NAME"]; |
510 | // If the script is named 'index.php', we remove it (for better looking URLs, | |
ad6c27b7 | 511 | // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde) |
9e975d86 SS |
512 | if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9); |
513 | return serverUrl() . $scriptname; | |
45034273 SS |
514 | } |
515 | ||
516 | // Returns the absolute URL of current script, WITH the query. | |
ad6c27b7 | 517 | // (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug) |
45034273 SS |
518 | function pageUrl() |
519 | { | |
520 | return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : ''); | |
521 | } | |
522 | ||
ad6c27b7 | 523 | // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes. |
45034273 SS |
524 | function return_bytes($val) |
525 | { | |
526 | $val = trim($val); $last=strtolower($val[strlen($val)-1]); | |
527 | switch($last) | |
528 | { | |
529 | case 'g': $val *= 1024; | |
530 | case 'm': $val *= 1024; | |
531 | case 'k': $val *= 1024; | |
532 | } | |
533 | return $val; | |
534 | } | |
535 | ||
536 | // Try to determine max file size for uploads (POST). | |
537 | // Returns an integer (in bytes) | |
538 | function getMaxFileSize() | |
539 | { | |
540 | $size1 = return_bytes(ini_get('post_max_size')); | |
541 | $size2 = return_bytes(ini_get('upload_max_filesize')); | |
542 | // Return the smaller of two: | |
543 | $maxsize = min($size1,$size2); | |
ad6c27b7 | 544 | // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000) |
45034273 SS |
545 | return $maxsize; |
546 | } | |
547 | ||
45034273 SS |
548 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch) |
549 | (used to build the ADD_DATE attribute in Netscape-bookmarks file) | |
550 | PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */ | |
551 | function linkdate2timestamp($linkdate) | |
552 | { | |
f5b05925 JD |
553 | if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){ |
554 | $Y=$M=$D=$h=$m=$s=0; | |
555 | $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s); | |
556 | return mktime($h,$m,$s,$M,$D,$Y); | |
557 | } | |
558 | return time(); | |
45034273 SS |
559 | } |
560 | ||
561 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date. | |
562 | (used to build the pubDate attribute in RSS feed.) */ | |
563 | function linkdate2rfc822($linkdate) | |
564 | { | |
565 | return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format. | |
566 | } | |
567 | ||
568 | /* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date. | |
569 | (used to build the updated tags in ATOM feed.) */ | |
570 | function linkdate2iso8601($linkdate) | |
571 | { | |
572 | return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format. | |
573 | } | |
574 | ||
45034273 SS |
575 | // Parse HTTP response headers and return an associative array. |
576 | function http_parse_headers_shaarli( $headers ) | |
577 | { | |
578 | $res=array(); | |
579 | foreach($headers as $header) | |
580 | { | |
581 | $i = strpos($header,': '); | |
582 | if ($i!==false) | |
583 | { | |
584 | $key=substr($header,0,$i); | |
585 | $value=substr($header,$i+2,strlen($header)-$i-2); | |
586 | $res[$key]=$value; | |
587 | } | |
588 | } | |
589 | return $res; | |
590 | } | |
591 | ||
592 | /* GET an URL. | |
ad6c27b7 | 593 | Input: $url : URL to get (http://...) |
45034273 | 594 | $timeout : Network timeout (will wait this many seconds for an anwser before giving up). |
ad6c27b7 | 595 | Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message |
596 | [1] = associative array containing HTTP response headers (e.g. echo getHTTP($url)[1]['Content-Type']) | |
45034273 SS |
597 | [2] = data |
598 | Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/'); | |
599 | if (strpos($httpstatus,'200 OK')!==false) | |
600 | echo 'Data type: '.htmlspecialchars($headers['Content-Type']); | |
601 | else | |
602 | echo 'There was an error: '.htmlspecialchars($httpstatus) | |
603 | */ | |
604 | function getHTTP($url,$timeout=30) | |
605 | { | |
606 | try | |
607 | { | |
03545ef6 | 608 | $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 |
609 | $context = stream_context_create($options); |
610 | $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source. | |
611 | if (!$data) { return array('HTTP Error',array(),''); } | |
ad6c27b7 | 612 | $httpStatus=$http_response_header[0]; // e.g. "HTTP/1.1 200 OK" |
45034273 SS |
613 | $responseHeaders=http_parse_headers_shaarli($http_response_header); |
614 | return array($httpStatus,$responseHeaders,$data); | |
615 | } | |
ad6c27b7 | 616 | catch (Exception $e) // getHTTP *can* fail silently (we don't care if the title cannot be fetched) |
45034273 SS |
617 | { |
618 | return array($e->getMessage(),'',''); | |
619 | } | |
620 | } | |
621 | ||
622 | // Extract title from an HTML document. | |
623 | // (Returns an empty string if not found.) | |
624 | function html_extract_title($html) | |
625 | { | |
626 | return preg_match('!<title>(.*?)</title>!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ; | |
627 | } | |
628 | ||
629 | // ------------------------------------------------------------------------------------------ | |
630 | // Token management for XSRF protection | |
631 | // Token should be used in any form which acts on data (create,update,delete,import...). | |
632 | if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session. | |
633 | ||
634 | // Returns a token. | |
635 | function getToken() | |
636 | { | |
a1f5a6ec | 637 | $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']); // We generate a random string. |
45034273 SS |
638 | $_SESSION['tokens'][$rnd]=1; // Store it on the server side. |
639 | return $rnd; | |
640 | } | |
641 | ||
ad6c27b7 | 642 | // Tells if a token is OK. Using this function will destroy the token. |
643 | // true=token is OK. | |
45034273 SS |
644 | function tokenOk($token) |
645 | { | |
646 | if (isset($_SESSION['tokens'][$token])) | |
647 | { | |
648 | unset($_SESSION['tokens'][$token]); // Token is used: destroy it. | |
ad6c27b7 | 649 | return true; // Token is OK. |
45034273 SS |
650 | } |
651 | return false; // Wrong token, or already used. | |
652 | } | |
653 | ||
654 | // ------------------------------------------------------------------------------------------ | |
655 | /* This class is in charge of building the final page. | |
656 | (This is basically a wrapper around RainTPL which pre-fills some fields.) | |
657 | p = new pageBuilder; | |
658 | p.assign('myfield','myvalue'); | |
659 | p.renderPage('mytemplate'); | |
bb8f712d | 660 | |
45034273 SS |
661 | */ |
662 | class pageBuilder | |
663 | { | |
664 | private $tpl; // RainTPL template | |
665 | ||
666 | function __construct() | |
667 | { | |
668 | $this->tpl=false; | |
bb8f712d | 669 | } |
45034273 SS |
670 | |
671 | private function initialize() | |
bb8f712d KT |
672 | { |
673 | $this->tpl = new RainTPL; | |
5f85fcd8 A |
674 | $this->tpl->assign('newversion',escape(checkUpdate())); |
675 | $this->tpl->assign('feedurl',escape(indexUrl())); | |
45034273 SS |
676 | $searchcrits=''; // Search criteria |
677 | if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']); | |
678 | elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']); | |
679 | $this->tpl->assign('searchcrits',$searchcrits); | |
680 | $this->tpl->assign('source',indexUrl()); | |
681 | $this->tpl->assign('version',shaarli_version); | |
682 | $this->tpl->assign('scripturl',indexUrl()); | |
683 | $this->tpl->assign('pagetitle','Shaarli'); | |
ad6c27b7 | 684 | $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links? |
45034273 | 685 | if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']); |
ebb2880d | 686 | if (!empty($GLOBALS['titleLink'])) $this->tpl->assign('titleLink',$GLOBALS['titleLink']); |
45034273 SS |
687 | if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']); |
688 | $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] ); | |
bb8f712d | 689 | return; |
45034273 | 690 | } |
bb8f712d | 691 | |
45034273 SS |
692 | // The following assign() method is basically the same as RainTPL (except that it's lazy) |
693 | public function assign($what,$where) | |
694 | { | |
695 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
696 | $this->tpl->assign($what,$where); | |
697 | } | |
bb8f712d | 698 | |
45034273 | 699 | // Render a specific page (using a template). |
ad6c27b7 | 700 | // e.g. pb.renderPage('picwall') |
45034273 SS |
701 | public function renderPage($page) |
702 | { | |
703 | if ($this->tpl===false) $this->initialize(); // Lazy initialization | |
704 | $this->tpl->draw($page); | |
705 | } | |
706 | } | |
707 | ||
45034273 | 708 | // ------------------------------------------------------------------------------------------ |
ad6c27b7 | 709 | // Output the last N links in RSS 2.0 format. |
45034273 SS |
710 | function showRSS() |
711 | { | |
712 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
713 | ||
2abd3905 | 714 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 715 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks |
ed5b38dd FE |
716 | // Also enabled through a config option |
717 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; | |
2abd3905 | 718 | |
45034273 SS |
719 | // Cache system |
720 | $query = $_SERVER["QUERY_STRING"]; | |
721 | $cache = new pageCache(pageUrl(),startsWith($query,'do=rss') && !isLoggedIn()); | |
722 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
723 | ||
724 | // If cached was not found (or not usable), then read the database and build the response: | |
9f15ca9e | 725 | $LINKSDB = new LinkDB( |
9c8752a2 | 726 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
727 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
728 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
729 | ); | |
730 | // Read links from database (and filter private links if user it not logged in). | |
45034273 | 731 | |
ad6c27b7 | 732 | // Optionally filter the results: |
45034273 SS |
733 | $linksToDisplay=array(); |
734 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
59c90f58 | 735 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
45034273 | 736 | else $linksToDisplay = $LINKSDB; |
f3db3774 | 737 | |
c677013b SS |
738 | $nblinksToDisplay = 50; // Number of links to display. |
739 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 740 | { |
c677013b SS |
741 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
742 | } | |
45034273 | 743 | |
5f85fcd8 | 744 | $pageaddr=escape(indexUrl()); |
45034273 | 745 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">'; |
5f85fcd8 | 746 | echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>'; |
45034273 SS |
747 | echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n"; |
748 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) | |
749 | { | |
750 | echo '<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 A |
751 | echo '<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />'; |
752 | echo '<link rel="self" href="'.$pageaddr.'?do=rss" xmlns="http://www.w3.org/2005/Atom" />'; | |
45034273 SS |
753 | echo '<!-- End Of PubSubHubbub Discovery -->'; |
754 | } | |
755 | $i=0; | |
756 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 757 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
758 | { |
759 | $link = $linksToDisplay[$keys[$i]]; | |
760 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
761 | $rfc822date = linkdate2rfc822($link['linkdate']); | |
5f85fcd8 | 762 | $absurl = $link['url']; |
45034273 | 763 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
2abd3905 | 764 | if ($usepermalinks===true) |
5f85fcd8 | 765 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="true">'.$guid.'</guid><link>'.$guid.'</link>'; |
2abd3905 | 766 | else |
5f85fcd8 A |
767 | echo '<item><title>'.$link['title'].'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>'; |
768 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.escape($rfc822date)."</pubDate>\n"; | |
45034273 SS |
769 | if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification) |
770 | { | |
5f85fcd8 | 771 | foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.$pageaddr.'">'.$tag.'</category>'."\n"; } |
45034273 | 772 | } |
2abd3905 SS |
773 | |
774 | // Add permalink in description | |
775 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; | |
776 | // If user wants permalinks first, put the final link in description | |
777 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; | |
778 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
5f85fcd8 | 779 | echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink.']]></description>'."\n</item>\n"; |
45034273 SS |
780 | $i++; |
781 | } | |
5f85fcd8 | 782 | echo '</channel></rss><!-- Cached version of '.escape(pageUrl()).' -->'; |
45034273 SS |
783 | |
784 | $cache->cache(ob_get_contents()); | |
785 | ob_end_flush(); | |
786 | exit; | |
787 | } | |
788 | ||
789 | // ------------------------------------------------------------------------------------------ | |
ad6c27b7 | 790 | // Output the last N links in ATOM format. |
45034273 SS |
791 | function showATOM() |
792 | { | |
793 | header('Content-Type: application/atom+xml; charset=utf-8'); | |
794 | ||
2abd3905 | 795 | // $usepermalink : If true, use permalink instead of final link. |
ad6c27b7 | 796 | // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks |
ed5b38dd | 797 | $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; |
2abd3905 | 798 | |
45034273 SS |
799 | // Cache system |
800 | $query = $_SERVER["QUERY_STRING"]; | |
801 | $cache = new pageCache(pageUrl(),startsWith($query,'do=atom') && !isLoggedIn()); | |
802 | $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } | |
803 | // If cached was not found (or not usable), then read the database and build the response: | |
804 | ||
eaefcba7 | 805 | // Read links from database (and filter private links if used it not logged in). |
9f15ca9e | 806 | $LINKSDB = new LinkDB( |
9c8752a2 | 807 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
808 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
809 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
810 | ); | |
45034273 | 811 | |
ad6c27b7 | 812 | // Optionally filter the results: |
45034273 SS |
813 | $linksToDisplay=array(); |
814 | if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); | |
59c90f58 | 815 | else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); |
45034273 | 816 | else $linksToDisplay = $LINKSDB; |
f3db3774 | 817 | |
c677013b SS |
818 | $nblinksToDisplay = 50; // Number of links to display. |
819 | if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. | |
732e683b | 820 | { |
c677013b SS |
821 | $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; |
822 | } | |
45034273 | 823 | |
5f85fcd8 | 824 | $pageaddr=escape(indexUrl()); |
45034273 SS |
825 | $latestDate = ''; |
826 | $entries=''; | |
827 | $i=0; | |
828 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). | |
fbd9e527 | 829 | while ($i<$nblinksToDisplay && $i<count($keys)) |
45034273 SS |
830 | { |
831 | $link = $linksToDisplay[$keys[$i]]; | |
832 | $guid = $pageaddr.'?'.smallHash($link['linkdate']); | |
833 | $iso8601date = linkdate2iso8601($link['linkdate']); | |
834 | $latestDate = max($latestDate,$iso8601date); | |
5f85fcd8 | 835 | $absurl = $link['url']; |
45034273 | 836 | if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute |
5f85fcd8 | 837 | $entries.='<entry><title>'.$link['title'].'</title>'; |
2abd3905 SS |
838 | if ($usepermalinks===true) |
839 | $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>'; | |
840 | else | |
841 | $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>'; | |
5f85fcd8 | 842 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.escape($iso8601date).'</updated>'; |
2abd3905 SS |
843 | |
844 | // Add permalink in description | |
5f85fcd8 | 845 | $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)'; |
2abd3905 | 846 | // If user wants permalinks first, put the final link in description |
5f85fcd8 A |
847 | if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)'; |
848 | if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; | |
2abd3905 | 849 | |
5f85fcd8 | 850 | $entries.='<content type="html"><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink."]]></content>\n"; |
45034273 SS |
851 | if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) |
852 | { | |
853 | foreach(explode(' ',$link['tags']) as $tag) | |
5f85fcd8 | 854 | { $entries.='<category scheme="'.$pageaddr.'" term="'.$tag.'" />'."\n"; } |
45034273 SS |
855 | } |
856 | $entries.="</entry>\n"; | |
857 | $i++; | |
858 | } | |
859 | $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">'; | |
5f85fcd8 A |
860 | $feed.='<title>'.$GLOBALS['title'].'</title>'; |
861 | if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>'; | |
862 | $feed.='<link rel="self" href="'.escape(serverUrl().$_SERVER["REQUEST_URI"]).'" />'; | |
45034273 SS |
863 | if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) |
864 | { | |
865 | $feed.='<!-- PubSubHubbub Discovery -->'; | |
5f85fcd8 | 866 | $feed.='<link rel="hub" href="'.escape($GLOBALS['config']['PUBSUBHUB_URL']).'" />'; |
45034273 SS |
867 | $feed.='<!-- End Of PubSubHubbub Discovery -->'; |
868 | } | |
5f85fcd8 A |
869 | $feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>'; |
870 | $feed.='<id>'.$pageaddr.'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. | |
45034273 | 871 | $feed.=$entries; |
5f85fcd8 | 872 | $feed.='</feed><!-- Cached version of '.escape(pageUrl()).' -->'; |
45034273 | 873 | echo $feed; |
bb8f712d | 874 | |
45034273 SS |
875 | $cache->cache(ob_get_contents()); |
876 | ob_end_flush(); | |
877 | exit; | |
878 | } | |
879 | ||
880 | // ------------------------------------------------------------------------------------------ | |
881 | // Daily RSS feed: 1 RSS entry per day giving all the links on that day. | |
882 | // Gives the last 7 days (which have links). | |
883 | // This RSS feed cannot be filtered. | |
f3b8f9f0 | 884 | function showDailyRSS() { |
45034273 SS |
885 | // Cache system |
886 | $query = $_SERVER["QUERY_STRING"]; | |
f3b8f9f0 A |
887 | $cache = new pageCache(pageUrl(), startsWith($query, 'do=dailyrss') && !isLoggedIn()); |
888 | $cached = $cache->cachedVersion(); | |
889 | if (!empty($cached)) { | |
890 | echo $cached; | |
891 | exit; | |
892 | } | |
9f15ca9e | 893 | |
f3b8f9f0 A |
894 | // If cached was not found (or not usable), then read the database and build the response: |
895 | // Read links from database (and filter private links if used it not logged in). | |
9f15ca9e | 896 | $LINKSDB = new LinkDB( |
9c8752a2 | 897 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
898 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
899 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
900 | ); | |
bb8f712d | 901 | |
45034273 SS |
902 | /* Some Shaarlies may have very few links, so we need to look |
903 | back in time (rsort()) until we have enough days ($nb_of_days). | |
904 | */ | |
f3b8f9f0 A |
905 | $linkdates = array(); |
906 | foreach ($LINKSDB as $linkdate => $value) { | |
907 | $linkdates[] = $linkdate; | |
908 | } | |
45034273 | 909 | rsort($linkdates); |
f3b8f9f0 A |
910 | $nb_of_days = 7; // We take 7 days. |
911 | $today = Date('Ymd'); | |
912 | $days = array(); | |
913 | ||
914 | foreach ($linkdates as $linkdate) { | |
915 | $day = substr($linkdate, 0, 8); // Extract day (without time) | |
916 | if (strcmp($day,$today) < 0) { | |
917 | if (empty($days[$day])) { | |
918 | $days[$day] = array(); | |
919 | } | |
920 | $days[$day][] = $linkdate; | |
921 | } | |
922 | ||
923 | if (count($days) > $nb_of_days) { | |
924 | break; // Have we collected enough days? | |
45034273 | 925 | } |
45034273 | 926 | } |
bb8f712d | 927 | |
45034273 SS |
928 | // Build the RSS feed. |
929 | header('Content-Type: application/rss+xml; charset=utf-8'); | |
f3b8f9f0 | 930 | $pageaddr = escape(indexUrl()); |
45034273 | 931 | echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">'; |
f3b8f9f0 A |
932 | echo '<channel>'; |
933 | echo '<title>Daily - '. $GLOBALS['title'] . '</title>'; | |
934 | echo '<link>'. $pageaddr .'</link>'; | |
935 | echo '<description>Daily shared links</description>'; | |
936 | echo '<language>en-en</language>'; | |
937 | echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL; | |
938 | ||
939 | // For each day. | |
940 | foreach ($days as $day => $linkdates) { | |
941 | $daydate = linkdate2timestamp($day.'_000000'); // Full text date | |
45034273 | 942 | $rfc822date = linkdate2rfc822($day.'_000000'); |
f3b8f9f0 | 943 | $absurl = escape(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. |
bb8f712d | 944 | |
45034273 | 945 | // Build the HTML body of this RSS entry. |
f3b8f9f0 A |
946 | $html = ''; |
947 | $href = ''; | |
948 | $links = array(); | |
949 | ||
45034273 | 950 | // We pre-format some fields for proper output. |
f3b8f9f0 | 951 | foreach ($linkdates as $linkdate) { |
45034273 | 952 | $l = $LINKSDB[$linkdate]; |
f3b8f9f0 | 953 | $l['formatedDescription'] = nl2br(keepMultipleSpaces(text2clickable($l['description']))); |
bb8f712d | 954 | $l['thumbnail'] = thumbnail($l['url']); |
a5752e77 | 955 | $l['timestamp'] = linkdate2timestamp($l['linkdate']); |
f3b8f9f0 A |
956 | if (startsWith($l['url'], '?')) { |
957 | $l['url'] = indexUrl() . $l['url']; // make permalink URL absolute | |
958 | } | |
959 | $links[$linkdate] = $l; | |
45034273 | 960 | } |
f3b8f9f0 | 961 | |
45034273 | 962 | // Then build the HTML for this day: |
bb8f712d | 963 | $tpl = new RainTPL; |
f3b8f9f0 A |
964 | $tpl->assign('title', $GLOBALS['title']); |
965 | $tpl->assign('daydate', $daydate); | |
966 | $tpl->assign('absurl', $absurl); | |
967 | $tpl->assign('links', $links); | |
968 | $tpl->assign('rfc822date', escape($rfc822date)); | |
969 | $html = $tpl->draw('dailyrss', $return_string=true); | |
45034273 | 970 | |
f3b8f9f0 | 971 | echo $html . PHP_EOL; |
bb8f712d | 972 | } |
f3b8f9f0 | 973 | echo '</channel></rss><!-- Cached version of '. escape(pageUrl()) .' -->'; |
bb8f712d | 974 | |
45034273 SS |
975 | $cache->cache(ob_get_contents()); |
976 | ob_end_flush(); | |
977 | exit; | |
978 | } | |
979 | ||
980 | // "Daily" page. | |
981 | function showDaily() | |
982 | { | |
9f15ca9e | 983 | $LINKSDB = new LinkDB( |
9c8752a2 | 984 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
985 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
986 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
987 | ); | |
45034273 SS |
988 | |
989 | $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. | |
990 | if (isset($_GET['day'])) $day=$_GET['day']; | |
bb8f712d | 991 | |
45034273 SS |
992 | $days = $LINKSDB->days(); |
993 | $i = array_search($day,$days); | |
f3db3774 | 994 | if ($i===false) { $i=count($days)-1; $day=$days[$i]; } |
bb8f712d KT |
995 | $previousday=''; |
996 | $nextday=''; | |
45034273 SS |
997 | if ($i!==false) |
998 | { | |
f3db3774 | 999 | if ($i>=1) $previousday=$days[$i-1]; |
45034273 SS |
1000 | if ($i<count($days)-1) $nextday=$days[$i+1]; |
1001 | } | |
1002 | ||
9186ab95 V |
1003 | try { |
1004 | $linksToDisplay = $LINKSDB->filterDay($day); | |
1005 | } catch (Exception $exc) { | |
1006 | error_log($exc); | |
d1e2f8e5 | 1007 | $linksToDisplay = array(); |
9186ab95 V |
1008 | } |
1009 | ||
45034273 SS |
1010 | // We pre-format some fields for proper output. |
1011 | foreach($linksToDisplay as $key=>$link) | |
1012 | { | |
5f85fcd8 | 1013 | |
dd62b9ba SS |
1014 | $taglist = explode(' ',$link['tags']); |
1015 | uasort($taglist, 'strcasecmp'); | |
1016 | $linksToDisplay[$key]['taglist']=$taglist; | |
5f85fcd8 | 1017 | $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); |
bb8f712d | 1018 | $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); |
a5752e77 | 1019 | $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); |
45034273 | 1020 | } |
bb8f712d | 1021 | |
45034273 | 1022 | /* We need to spread the articles on 3 columns. |
ad6c27b7 | 1023 | I did not want to use a JavaScript lib like http://masonry.desandro.com/ |
bb8f712d | 1024 | so I manually spread entries with a simple method: I roughly evaluate the |
45034273 SS |
1025 | height of a div according to title and description length. |
1026 | */ | |
1027 | $columns=array(array(),array(),array()); // Entries to display, for each column. | |
1028 | $fill=array(0,0,0); // Rough estimate of columns fill. | |
1029 | foreach($linksToDisplay as $key=>$link) | |
1030 | { | |
1031 | // Roughly estimate length of entry (by counting characters) | |
1032 | // Title: 30 chars = 1 line. 1 line is 30 pixels height. | |
1033 | // Description: 836 characters gives roughly 342 pixel height. | |
ad6c27b7 | 1034 | // This is not perfect, but it's usually OK. |
45034273 SS |
1035 | $length=strlen($link['title'])+(342*strlen($link['description']))/836; |
1036 | if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. | |
1037 | // Then put in column which is the less filled: | |
1038 | $smallest=min($fill); // find smallest value in array. | |
1039 | $index=array_search($smallest,$fill); // find index of this smallest value. | |
1040 | array_push($columns[$index],$link); // Put entry in this column. | |
1041 | $fill[$index]+=$length; | |
1042 | } | |
1043 | $PAGE = new pageBuilder; | |
1044 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1045 | $PAGE->assign('linkcount',count($LINKSDB)); | |
cae64e52 | 1046 | $PAGE->assign('cols', $columns); |
4de71445 | 1047 | $PAGE->assign('day',linkdate2timestamp($day.'_000000')); |
45034273 | 1048 | $PAGE->assign('previousday',$previousday); |
bb8f712d | 1049 | $PAGE->assign('nextday',$nextday); |
45034273 SS |
1050 | $PAGE->renderPage('daily'); |
1051 | exit; | |
1052 | } | |
1053 | ||
1054 | ||
1055 | // ------------------------------------------------------------------------------------------ | |
1056 | // Render HTML page (according to URL parameters and user rights) | |
1057 | function renderPage() | |
1058 | { | |
9f15ca9e | 1059 | $LINKSDB = new LinkDB( |
9c8752a2 | 1060 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
1061 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
1062 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
1063 | ); | |
45034273 SS |
1064 | |
1065 | // -------- Display login form. | |
1066 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) | |
1067 | { | |
1068 | if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli | |
1069 | $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. | |
1070 | $PAGE = new pageBuilder; | |
1071 | $PAGE->assign('token',$token); | |
5f85fcd8 | 1072 | $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); |
45034273 SS |
1073 | $PAGE->renderPage('loginform'); |
1074 | exit; | |
1075 | } | |
1076 | // -------- User wants to logout. | |
1077 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) | |
1078 | { | |
1079 | invalidateCaches(); | |
1080 | logout(); | |
1081 | header('Location: ?'); | |
1082 | exit; | |
1083 | } | |
1084 | ||
1085 | // -------- Picture wall | |
1086 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) | |
1087 | { | |
ad6c27b7 | 1088 | // Optionally filter the results: |
45034273 SS |
1089 | $links=array(); |
1090 | if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); | |
1091 | elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
1092 | else $links = $LINKSDB; | |
f3db3774 | 1093 | |
45034273 SS |
1094 | $body=''; |
1095 | $linksToDisplay=array(); | |
1096 | ||
1097 | // Get only links which have a thumbnail. | |
1098 | foreach($links as $link) | |
1099 | { | |
5f85fcd8 | 1100 | $permalink='?'.escape(smallhash($link['linkdate'])); |
45034273 SS |
1101 | $thumb=lazyThumbnail($link['url'],$permalink); |
1102 | if ($thumb!='') // Only output links which have a thumbnail. | |
1103 | { | |
1104 | $link['thumbnail']=$thumb; // Thumbnail HTML code. | |
45034273 SS |
1105 | $linksToDisplay[]=$link; // Add to array. |
1106 | } | |
1107 | } | |
f3db3774 | 1108 | |
45034273 SS |
1109 | $PAGE = new pageBuilder; |
1110 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1111 | $PAGE->assign('linksToDisplay',$linksToDisplay); | |
1112 | $PAGE->renderPage('picwall'); | |
1113 | exit; | |
1114 | } | |
1115 | ||
1116 | // -------- Tag cloud | |
1117 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) | |
1118 | { | |
1119 | $tags= $LINKSDB->allTags(); | |
a037ac69 | 1120 | |
45034273 SS |
1121 | // We sort tags alphabetically, then choose a font size according to count. |
1122 | // First, find max value. | |
1123 | $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value); | |
1124 | ksort($tags); | |
1125 | $tagList=array(); | |
1126 | foreach($tags as $key=>$value) | |
1e3b2740 | 1127 | // 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 | 1128 | { |
1e3b2740 | 1129 | $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); |
45034273 SS |
1130 | } |
1131 | $PAGE = new pageBuilder; | |
1132 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1133 | $PAGE->assign('tags',$tagList); | |
1134 | $PAGE->renderPage('tagcloud'); | |
bb8f712d | 1135 | exit; |
45034273 SS |
1136 | } |
1137 | ||
1138 | // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) | |
1139 | if (isset($_GET['addtag'])) | |
1140 | { | |
1141 | // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. | |
1142 | if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER | |
1143 | parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); | |
732e683b | 1144 | |
775803a0 A |
1145 | // Prevent redirection loop |
1146 | if (isset($params['addtag'])) { | |
1147 | unset($params['addtag']); | |
1148 | } | |
1149 | ||
732e683b FE |
1150 | // Check if this tag is already in the search query and ignore it if it is. |
1151 | // Each tag is always separated by a space | |
6ac95d9c A |
1152 | if (isset($params['searchtags'])) { |
1153 | $current_tags = explode(' ', $params['searchtags']); | |
1154 | } else { | |
1155 | $current_tags = array(); | |
1156 | } | |
732e683b FE |
1157 | $addtag = true; |
1158 | foreach ($current_tags as $value) { | |
1159 | if ($value === $_GET['addtag']) { | |
1160 | $addtag = false; | |
1161 | break; | |
1162 | } | |
1163 | } | |
1164 | // Append the tag if necessary | |
1165 | if (empty($params['searchtags'])) { | |
1166 | $params['searchtags'] = trim($_GET['addtag']); | |
1167 | } | |
1168 | else if ($addtag) { | |
1169 | $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); | |
1170 | } | |
1171 | ||
45034273 SS |
1172 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1173 | header('Location: ?'.http_build_query($params)); | |
1174 | exit; | |
1175 | } | |
1176 | ||
1177 | // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) | |
775803a0 | 1178 | if (isset($_GET['removetag'])) { |
45034273 | 1179 | // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query. |
775803a0 A |
1180 | if (empty($_SERVER['HTTP_REFERER'])) { |
1181 | header('Location: ?'); | |
1182 | exit; | |
1183 | } | |
1184 | ||
1185 | // In case browser does not send HTTP_REFERER | |
1186 | parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params); | |
1187 | ||
1188 | // Prevent redirection loop | |
1189 | if (isset($params['removetag'])) { | |
1190 | unset($params['removetag']); | |
1191 | } | |
1192 | ||
1193 | if (isset($params['searchtags'])) { | |
45034273 SS |
1194 | $tags = explode(' ',$params['searchtags']); |
1195 | $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. | |
775803a0 A |
1196 | if (count($tags)==0) { |
1197 | unset($params['searchtags']); | |
1198 | } else { | |
1199 | $params['searchtags'] = implode(' ',$tags); | |
1200 | } | |
45034273 SS |
1201 | unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) |
1202 | } | |
1203 | header('Location: ?'.http_build_query($params)); | |
1204 | exit; | |
1205 | } | |
1206 | ||
1207 | // -------- User wants to change the number of links per page (linksperpage=...) | |
775803a0 A |
1208 | if (isset($_GET['linksperpage'])) { |
1209 | if (is_numeric($_GET['linksperpage'])) { | |
1210 | $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); | |
1211 | } | |
1212 | ||
1213 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'))); | |
45034273 SS |
1214 | exit; |
1215 | } | |
bb8f712d | 1216 | |
45034273 | 1217 | // -------- User wants to see only private links (toggle) |
775803a0 A |
1218 | if (isset($_GET['privateonly'])) { |
1219 | if (empty($_SESSION['privateonly'])) { | |
1220 | $_SESSION['privateonly'] = 1; // See only private links | |
1221 | } else { | |
45034273 SS |
1222 | unset($_SESSION['privateonly']); // See all links |
1223 | } | |
775803a0 A |
1224 | |
1225 | header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'))); | |
45034273 SS |
1226 | exit; |
1227 | } | |
1228 | ||
1229 | // -------- Handle other actions allowed for non-logged in users: | |
1230 | if (!isLoggedIn()) | |
1231 | { | |
ad6c27b7 | 1232 | // User tries to post new link but is not logged in: |
45034273 SS |
1233 | // Show login screen, then redirect to ?post=... |
1234 | if (isset($_GET['post'])) | |
1235 | { | |
a1795ddc | 1236 | 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($_GET['source']):'')); // Redirect to login page, then back to post link. |
45034273 SS |
1237 | exit; |
1238 | } | |
aedc912d FE |
1239 | |
1240 | // Same case as above except that user tried to access ?do=addlink without being logged in | |
1241 | // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. | |
1242 | if (isset($_GET['do']) && $_GET['do'] === 'addlink') { | |
1243 | header('Location: ?do=login&post='); | |
1244 | exit; | |
1245 | } | |
1246 | ||
5fbabbb9 A |
1247 | if (isset($_GET['edit_link'])) { |
1248 | header('Location: ?do=login&edit_link='. escape($_GET['edit_link'])); | |
1249 | exit; | |
1250 | } | |
1251 | ||
45034273 SS |
1252 | $PAGE = new pageBuilder; |
1253 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display | |
1254 | $PAGE->renderPage('linklist'); | |
ad6c27b7 | 1255 | exit; // Never remove this one! All operations below are reserved for logged in user. |
45034273 SS |
1256 | } |
1257 | ||
1258 | // -------- All other functions are reserved for the registered user: | |
1259 | ||
1260 | // -------- Display the Tools menu if requested (import/export/bookmarklet...) | |
1261 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) | |
1262 | { | |
1263 | $PAGE = new pageBuilder; | |
1264 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1265 | $PAGE->assign('pageabsaddr',indexUrl()); | |
1266 | $PAGE->renderPage('tools'); | |
1267 | exit; | |
1268 | } | |
1269 | ||
1270 | // -------- User wants to change his/her password. | |
1271 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) | |
1272 | { | |
1273 | if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); | |
1274 | if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) | |
1275 | { | |
ad6c27b7 | 1276 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1277 | |
1278 | // Make sure old password is correct. | |
1279 | $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
fe16b01e | 1280 | if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; } |
45034273 SS |
1281 | // Save new password |
1282 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
1283 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
dd484b90 A |
1284 | try { |
1285 | writeConfig($GLOBALS, isLoggedIn()); | |
1286 | } | |
1287 | catch(Exception $e) { | |
1288 | error_log( | |
1289 | 'ERROR while writing config file after changing password.' . PHP_EOL . | |
1290 | $e->getMessage() | |
1291 | ); | |
1292 | ||
1293 | // TODO: do not handle exceptions/errors in JS. | |
1294 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1295 | exit; | |
1296 | } | |
fe16b01e | 1297 | echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1298 | exit; |
1299 | } | |
1300 | else // show the change password form. | |
1301 | { | |
1302 | $PAGE = new pageBuilder; | |
1303 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1304 | $PAGE->assign('token',getToken()); | |
1305 | $PAGE->renderPage('changepassword'); | |
1306 | exit; | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | // -------- User wants to change configuration | |
1311 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) | |
1312 | { | |
1313 | if (!empty($_POST['title']) ) | |
1314 | { | |
ad6c27b7 | 1315 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 SS |
1316 | $tz = 'UTC'; |
1317 | if (!empty($_POST['continent']) && !empty($_POST['city'])) | |
d1e2f8e5 | 1318 | if (isTimeZoneValid($_POST['continent'],$_POST['city'])) |
45034273 SS |
1319 | $tz = $_POST['continent'].'/'.$_POST['city']; |
1320 | $GLOBALS['timezone'] = $tz; | |
1321 | $GLOBALS['title']=$_POST['title']; | |
ebb2880d | 1322 | $GLOBALS['titleLink']=$_POST['titleLink']; |
45034273 SS |
1323 | $GLOBALS['redirector']=$_POST['redirector']; |
1324 | $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); | |
bb8f712d | 1325 | $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); |
ed5b38dd | 1326 | $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); |
329e0768 | 1327 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
caee7ff9 | 1328 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']); |
dd484b90 A |
1329 | try { |
1330 | writeConfig($GLOBALS, isLoggedIn()); | |
1331 | } | |
1332 | catch(Exception $e) { | |
1333 | error_log( | |
1334 | 'ERROR while writing config file after configuration update.' . PHP_EOL . | |
1335 | $e->getMessage() | |
1336 | ); | |
1337 | ||
1338 | // TODO: do not handle exceptions/errors in JS. | |
1339 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>'; | |
1340 | exit; | |
1341 | } | |
fe16b01e | 1342 | echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>'; |
45034273 SS |
1343 | exit; |
1344 | } | |
1345 | else // Show the configuration form. | |
1346 | { | |
1347 | $PAGE = new pageBuilder; | |
1348 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1349 | $PAGE->assign('token',getToken()); | |
5f85fcd8 A |
1350 | $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] ); |
1351 | $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] ); | |
d1e2f8e5 V |
1352 | list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']); |
1353 | $PAGE->assign('timezone_form', $timezone_form); | |
45034273 SS |
1354 | $PAGE->assign('timezone_js',$timezone_js); |
1355 | $PAGE->renderPage('configure'); | |
1356 | exit; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | // -------- User wants to rename a tag or delete it | |
1361 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) | |
1362 | { | |
1363 | if (empty($_POST['fromtag'])) | |
1364 | { | |
1365 | $PAGE = new pageBuilder; | |
1366 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1367 | $PAGE->assign('token',getToken()); | |
bdd1715b | 1368 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1369 | $PAGE->renderPage('changetag'); |
1370 | exit; | |
1371 | } | |
1372 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1373 | ||
1374 | // Delete a tag: | |
1375 | if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) | |
1376 | { | |
1377 | $needle=trim($_POST['fromtag']); | |
ad6c27b7 | 1378 | $linksToAlter = $LINKSDB->filterTags($needle,true); // True for case-sensitive tag search. |
45034273 SS |
1379 | foreach($linksToAlter as $key=>$value) |
1380 | { | |
1381 | $tags = explode(' ',trim($value['tags'])); | |
1382 | unset($tags[array_search($needle,$tags)]); // Remove tag. | |
1383 | $value['tags']=trim(implode(' ',$tags)); | |
1384 | $LINKSDB[$key]=$value; | |
1385 | } | |
ad6c27b7 | 1386 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1387 | echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>'; |
45034273 SS |
1388 | exit; |
1389 | } | |
1390 | ||
1391 | // Rename a tag: | |
1392 | if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) | |
1393 | { | |
1394 | $needle=trim($_POST['fromtag']); | |
1395 | $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. | |
1396 | foreach($linksToAlter as $key=>$value) | |
1397 | { | |
1398 | $tags = explode(' ',trim($value['tags'])); | |
ad6c27b7 | 1399 | $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. |
45034273 SS |
1400 | $value['tags']=trim(implode(' ',$tags)); |
1401 | $LINKSDB[$key]=$value; | |
1402 | } | |
ad6c27b7 | 1403 | $LINKSDB->savedb(); // Save to disk. |
fe16b01e | 1404 | echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>'; |
45034273 SS |
1405 | exit; |
1406 | } | |
1407 | } | |
1408 | ||
ad6c27b7 | 1409 | // -------- User wants to add a link without using the bookmarklet: Show form. |
45034273 SS |
1410 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) |
1411 | { | |
1412 | $PAGE = new pageBuilder; | |
1413 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1414 | $PAGE->renderPage('addlink'); | |
1415 | exit; | |
1416 | } | |
1417 | ||
1418 | // -------- User clicked the "Save" button when editing a link: Save link to database. | |
1419 | if (isset($_POST['save_edit'])) | |
1420 | { | |
ad6c27b7 | 1421 | if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! |
45034273 | 1422 | $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. |
781e8aad | 1423 | $tags = implode(' ', array_unique(explode(' ', $tags))); // Remove duplicates. |
45034273 | 1424 | $linkdate=$_POST['lf_linkdate']; |
feebc6d4 | 1425 | $url = trim($_POST['lf_url']); |
f81139c9 | 1426 | if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:')) |
feebc6d4 SS |
1427 | $url = 'http://'.$url; |
1428 | $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), | |
45034273 SS |
1429 | 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags)); |
1430 | if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. | |
1431 | $LINKSDB[$linkdate] = $link; | |
ad6c27b7 | 1432 | $LINKSDB->savedb(); // Save to disk. |
45034273 SS |
1433 | pubsubhub(); |
1434 | ||
1435 | // If we are called from the bookmarklet, we must close the popup: | |
d33c5d4c | 1436 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
775803a0 A |
1437 | $returnurl = ( !empty($_POST['returnurl']) ? escape($_POST['returnurl']) : '?' ); |
1438 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. | |
1439 | $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); | |
1440 | header('Location: '. $location); // After saving the link, redirect to the page the user was on. | |
45034273 SS |
1441 | exit; |
1442 | } | |
1443 | ||
1444 | // -------- User clicked the "Cancel" button when editing a link. | |
1445 | if (isset($_POST['cancel_edit'])) | |
1446 | { | |
ad6c27b7 | 1447 | // If we are called from the bookmarklet, we must close the popup: |
d33c5d4c | 1448 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
45034273 | 1449 | $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); |
b342b2a4 | 1450 | $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. |
775803a0 | 1451 | $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); |
45034273 SS |
1452 | header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. |
1453 | exit; | |
1454 | } | |
1455 | ||
ad6c27b7 | 1456 | // -------- User clicked the "Delete" button when editing a link: Delete link from database. |
45034273 SS |
1457 | if (isset($_POST['delete_link'])) |
1458 | { | |
1459 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1460 | // We do not need to ask for confirmation: | |
ad6c27b7 | 1461 | // - confirmation is handled by JavaScript |
45034273 SS |
1462 | // - we are protected from XSRF by the token. |
1463 | $linkdate=$_POST['lf_linkdate']; | |
1464 | unset($LINKSDB[$linkdate]); | |
1465 | $LINKSDB->savedb(); // save to disk | |
1466 | ||
1467 | // If we are called from the bookmarklet, we must close the popup: | |
d33c5d4c | 1468 | if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; } |
d528433d | 1469 | // Pick where we're going to redirect |
1470 | // ============================================================= | |
1471 | // Basically, we can't redirect to where we were previously if it was a permalink | |
1472 | // or an edit_link, because it would 404. | |
1473 | // Cases: | |
1474 | // - / : nothing in $_GET, redirect to self | |
1475 | // - /?page : redirect to self | |
d33c5d4c | 1476 | // - /?searchterm : redirect to self (there might be other links) |
d528433d | 1477 | // - /?searchtags : redirect to self |
1478 | // - /permalink : redirect to / (the link does not exist anymore) | |
1479 | // - /?edit_link : redirect to / (the link does not exist anymore) | |
1480 | // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self | |
1481 | // redirect is not satisfied, and only then redirect to / | |
1482 | $location = "?"; | |
1483 | // Self redirection | |
775803a0 A |
1484 | if (count($_GET) == 0 |
1485 | || isset($_GET['page']) | |
1486 | || isset($_GET['searchterm']) | |
1487 | || isset($_GET['searchtags']) | |
1488 | ) { | |
d528433d | 1489 | if (isset($_POST['returnurl'])) { |
1490 | $location = $_POST['returnurl']; // Handle redirects given by the form | |
775803a0 A |
1491 | } else { |
1492 | $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link')); | |
d528433d | 1493 | } |
1494 | } | |
1495 | ||
1496 | header('Location: ' . $location); // After deleting the link, redirect to appropriate location | |
45034273 SS |
1497 | exit; |
1498 | } | |
1499 | ||
1500 | // -------- User clicked the "EDIT" button on a link: Display link edit form. | |
1501 | if (isset($_GET['edit_link'])) | |
1502 | { | |
1503 | $link = $LINKSDB[$_GET['edit_link']]; // Read database | |
1504 | if (!$link) { header('Location: ?'); exit; } // Link not found in database. | |
1505 | $PAGE = new pageBuilder; | |
1506 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1507 | $PAGE->assign('link',$link); | |
1508 | $PAGE->assign('link_is_new',false); | |
1509 | $PAGE->assign('token',getToken()); // XSRF protection. | |
5f85fcd8 | 1510 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '')); |
bdd1715b | 1511 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1512 | $PAGE->renderPage('editlink'); |
1513 | exit; | |
1514 | } | |
1515 | ||
1516 | // -------- User want to post a new link: Display link edit form. | |
1517 | if (isset($_GET['post'])) | |
1518 | { | |
1519 | $url=$_GET['post']; | |
1520 | ||
ad2a397c | 1521 | // We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook... |
cbecab77 | 1522 | $annoyingpatterns = array('/[\?&]utm_source=[^&]*/', |
1523 | '/[\?&]utm_campaign=[^&]*/', | |
1524 | '/[\?&]utm_medium=[^&]*/', | |
1525 | '/#xtor=RSS-[^&]*/', | |
1526 | '/[\?&]fb_[^&]*/', | |
1527 | '/[\?&]__scoop[^&]*/', | |
1528 | '/#tk\.rss_all\?/', | |
1529 | '/[\?&]action_ref_map=[^&]*/', | |
1530 | '/[\?&]action_type_map=[^&]*/', | |
1531 | '/[\?&]action_object_map=[^&]*/', | |
1532 | '/[\?&]utm_content=[^&]*/', | |
1533 | '/[\?&]fb=[^&]*/', | |
1534 | '/[\?&]xtor=[^&]*/' | |
1535 | ); | |
ad2a397c | 1536 | foreach($annoyingpatterns as $pattern) |
1537 | { | |
403a1994 | 1538 | $url = preg_replace($pattern, "", $url); |
ad2a397c | 1539 | } |
45034273 SS |
1540 | |
1541 | $link_is_new = false; | |
1542 | $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link) | |
1543 | if (!$link) | |
1544 | { | |
1545 | $link_is_new = true; // This is a new link | |
1546 | $linkdate = strval(date('Ymd_His')); | |
1547 | $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). | |
7b2186a6 | 1548 | $description = (empty($_GET['description']) ? '' : $_GET['description']); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] |
3fac0a52 | 1549 | $tags = (empty($_GET['tags']) ? '' : $_GET['tags'] ); // Get tags if it was provided in URL |
732e683b | 1550 | $private = (!empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0); // Get private if it was provided in URL |
45034273 | 1551 | if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; |
ad6c27b7 | 1552 | // 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 |
1553 | if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') |
1554 | { | |
1555 | list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. | |
1556 | // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html | |
002ef0e5 SS |
1557 | if (strpos($status,'200 OK')!==false) |
1558 | { | |
1559 | // Look for charset in html header. | |
1560 | preg_match('#<meta .*charset=.*>#Usi', $data, $meta); | |
732e683b | 1561 | |
002ef0e5 SS |
1562 | // If found, extract encoding. |
1563 | if (!empty($meta[0])) | |
1564 | { | |
1565 | // Get encoding specified in header. | |
1566 | preg_match('#charset="?(.*)"#si', $meta[0], $enc); | |
1567 | // If charset not found, use utf-8. | |
1568 | $html_charset = (!empty($enc[1])) ? strtolower($enc[1]) : 'utf-8'; | |
1569 | } | |
1570 | else { $html_charset = 'utf-8'; } | |
732e683b | 1571 | |
002ef0e5 SS |
1572 | // Extract title |
1573 | $title = html_extract_title($data); | |
1574 | if (!empty($title)) | |
1575 | { | |
1576 | // Re-encode title in utf-8 if necessary. | |
1577 | $title = ($html_charset == 'iso-8859-1') ? utf8_encode($title) : $title; | |
1578 | } | |
1579 | } | |
45034273 | 1580 | } |
27646ca5 | 1581 | if ($url=='') // In case of empty URL, this is just a text (with a link that points to itself) |
1582 | { | |
1583 | $url='?'.smallHash($linkdate); | |
1584 | $title='Note: '; | |
1585 | } | |
3fac0a52 | 1586 | $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>$private); |
45034273 SS |
1587 | } |
1588 | ||
1589 | $PAGE = new pageBuilder; | |
1590 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1591 | $PAGE->assign('link',$link); | |
1592 | $PAGE->assign('link_is_new',$link_is_new); | |
1593 | $PAGE->assign('token',getToken()); // XSRF protection. | |
1594 | $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); | |
d33c5d4c | 1595 | $PAGE->assign('source',(isset($_GET['source']) ? $_GET['source'] : '')); |
bdd1715b | 1596 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1597 | $PAGE->renderPage('editlink'); |
1598 | exit; | |
1599 | } | |
1600 | ||
1601 | // -------- Export as Netscape Bookmarks HTML file. | |
1602 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export')) | |
1603 | { | |
1604 | if (empty($_GET['what'])) | |
1605 | { | |
1606 | $PAGE = new pageBuilder; | |
1607 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1608 | $PAGE->renderPage('export'); | |
1609 | exit; | |
1610 | } | |
1611 | $exportWhat=$_GET['what']; | |
ad6c27b7 | 1612 | if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); |
45034273 SS |
1613 | |
1614 | header('Content-Type: text/html; charset=utf-8'); | |
1615 | header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); | |
1616 | $currentdate=date('Y/m/d H:i:s'); | |
1617 | echo <<<HTML | |
1618 | <!DOCTYPE NETSCAPE-Bookmark-file-1> | |
1619 | <!-- This is an automatically generated file. | |
1620 | It will be read and overwritten. | |
1621 | DO NOT EDIT! --> | |
1622 | <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} --> | |
1623 | <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"> | |
1624 | <TITLE>Bookmarks</TITLE> | |
1625 | <H1>Bookmarks</H1> | |
1626 | HTML; | |
1627 | foreach($LINKSDB as $link) | |
1628 | { | |
1629 | if ($exportWhat=='all' || | |
1630 | ($exportWhat=='private' && $link['private']!=0) || | |
1631 | ($exportWhat=='public' && $link['private']==0)) | |
1632 | { | |
5f85fcd8 A |
1633 | echo '<DT><A HREF="'.$link['url'].'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"'; |
1634 | if ($link['tags']!='') echo ' TAGS="'.str_replace(' ',',',$link['tags']).'"'; | |
1635 | echo '>'.$link['title']."</A>\n"; | |
1636 | if ($link['description']!='') echo '<DD>'.$link['description']."\n"; | |
45034273 SS |
1637 | } |
1638 | } | |
1639 | exit; | |
1640 | } | |
1641 | ||
1642 | // -------- User is uploading a file for import | |
1643 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) | |
1644 | { | |
1645 | // If file is too big, some form field may be missing. | |
1646 | if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) | |
1647 | { | |
1648 | $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); | |
5f85fcd8 | 1649 | echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.escape($returnurl).'\';</script>'; |
45034273 SS |
1650 | exit; |
1651 | } | |
1652 | if (!tokenOk($_POST['token'])) die('Wrong token.'); | |
1653 | importFile(); | |
1654 | exit; | |
1655 | } | |
1656 | ||
1657 | // -------- Show upload/import dialog: | |
1658 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import')) | |
1659 | { | |
1660 | $PAGE = new pageBuilder; | |
1661 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1662 | $PAGE->assign('token',getToken()); | |
1663 | $PAGE->assign('maxfilesize',getMaxFileSize()); | |
1664 | $PAGE->renderPage('import'); | |
1665 | exit; | |
1666 | } | |
1667 | ||
1668 | // -------- Otherwise, simply display search form and links: | |
1669 | $PAGE = new pageBuilder; | |
45034273 SS |
1670 | buildLinkList($PAGE,$LINKSDB); // Compute list of links to display |
1671 | $PAGE->renderPage('linklist'); | |
1672 | exit; | |
1673 | } | |
1674 | ||
1675 | // ----------------------------------------------------------------------------------------------- | |
1676 | // Process the import file form. | |
1677 | function importFile() | |
1678 | { | |
1679 | if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } | |
9f15ca9e | 1680 | $LINKSDB = new LinkDB( |
9c8752a2 | 1681 | $GLOBALS['config']['DATASTORE'], |
9f15ca9e V |
1682 | isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], |
1683 | $GLOBALS['config']['HIDE_PUBLIC_LINKS'] | |
1684 | ); | |
45034273 SS |
1685 | $filename=$_FILES['filetoupload']['name']; |
1686 | $filesize=$_FILES['filetoupload']['size']; | |
1687 | $data=file_get_contents($_FILES['filetoupload']['tmp_name']); | |
ad6c27b7 | 1688 | $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? |
1689 | $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? | |
45034273 SS |
1690 | $import_count=0; |
1691 | ||
1692 | // Sniff file type: | |
1693 | $type='unknown'; | |
1694 | if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox). | |
1695 | ||
1696 | // Then import the bookmarks. | |
1697 | if ($type=='netscape') | |
1698 | { | |
1699 | // This is a standard Netscape-style bookmark file. | |
ad6c27b7 | 1700 | // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. |
45034273 SS |
1701 | foreach(explode('<DT>',$data) as $html) // explode is very fast |
1702 | { | |
1703 | $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); | |
1704 | $d = explode('<DD>',$html); | |
1705 | if (startswith($d[0],'<A ')) | |
1706 | { | |
1707 | $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional) | |
1708 | preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title | |
1709 | $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); | |
1710 | preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes | |
1711 | $raw_add_date=0; | |
1712 | foreach($matches as $m) | |
1713 | { | |
1714 | $attr=$m[1]; $value=$m[2]; | |
1715 | if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); | |
fc93ae1d AA |
1716 | elseif ($attr=='ADD_DATE') |
1717 | { | |
1718 | $raw_add_date=intval($value); | |
1719 | if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds | |
1720 | } | |
45034273 SS |
1721 | elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); |
1722 | elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); | |
1723 | } | |
1724 | if ($link['url']!='') | |
1725 | { | |
1726 | if ($private==1) $link['private']=1; | |
1727 | $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. | |
1728 | if ($dblink==false) | |
1729 | { // Link not in database, let's import it... | |
1730 | if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE | |
1731 | ||
1732 | // Make sure date/time is not already used by another link. | |
1733 | // (Some bookmark files have several different links with the same ADD_DATE) | |
ad6c27b7 | 1734 | // We increment date by 1 second until we find a date which is not used in DB. |
45034273 SS |
1735 | // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) |
1736 | while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. | |
1737 | $link['linkdate']=date('Ymd_His',$raw_add_date); | |
1738 | $LINKSDB[$link['linkdate']] = $link; | |
1739 | $import_count++; | |
1740 | } | |
ad6c27b7 | 1741 | else // Link already present in database. |
45034273 SS |
1742 | { |
1743 | if ($overwrite) | |
1744 | { // If overwrite is required, we import link data, except date/time. | |
1745 | $link['linkdate']=$dblink['linkdate']; | |
1746 | $LINKSDB[$link['linkdate']] = $link; | |
1747 | $import_count++; | |
1748 | } | |
1749 | } | |
1750 | ||
1751 | } | |
1752 | } | |
1753 | } | |
1754 | $LINKSDB->savedb(); | |
1755 | ||
fe16b01e | 1756 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>'; |
45034273 SS |
1757 | } |
1758 | else | |
1759 | { | |
fe16b01e | 1760 | echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>'; |
45034273 SS |
1761 | } |
1762 | } | |
1763 | ||
1764 | // ----------------------------------------------------------------------------------------------- | |
1765 | // Template for the list of links (<div id="linklist">) | |
1766 | // This function fills all the necessary fields in the $PAGE for the template 'linklist.html' | |
1767 | function buildLinkList($PAGE,$LINKSDB) | |
1768 | { | |
1769 | // ---- Filter link database according to parameters | |
1770 | $linksToDisplay=array(); | |
1771 | $search_type=''; | |
1772 | $search_crits=''; | |
1773 | if (isset($_GET['searchterm'])) // Fulltext search | |
1774 | { | |
1775 | $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm'])); | |
5f85fcd8 | 1776 | $search_crits=escape(trim($_GET['searchterm'])); |
45034273 SS |
1777 | $search_type='fulltext'; |
1778 | } | |
1779 | elseif (isset($_GET['searchtags'])) // Search by tag | |
1780 | { | |
1781 | $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); | |
5f85fcd8 | 1782 | $search_crits=explode(' ',escape(trim($_GET['searchtags']))); |
45034273 SS |
1783 | $search_type='tags'; |
1784 | } | |
1785 | elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL | |
1786 | { | |
1787 | $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6)); | |
1788 | if (count($linksToDisplay)==0) | |
1789 | { | |
1790 | header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); | |
1791 | echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.'; | |
1dcbe296 | 1792 | echo '<br>Would you mind <a href="?">clicking here</a>?'; |
45034273 SS |
1793 | exit; |
1794 | } | |
1795 | $search_type='permalink'; | |
1796 | } | |
1797 | else | |
ad6c27b7 | 1798 | $linksToDisplay = $LINKSDB; // Otherwise, display without filtering. |
bb8f712d | 1799 | |
8fa1ebd6 | 1800 | |
45034273 SS |
1801 | // Option: Show only private links |
1802 | if (!empty($_SESSION['privateonly'])) | |
1803 | { | |
1804 | $tmp = array(); | |
1805 | foreach($linksToDisplay as $linkdate=>$link) | |
1806 | { | |
1807 | if ($link['private']!=0) $tmp[$linkdate]=$link; | |
1808 | } | |
1809 | $linksToDisplay=$tmp; | |
1810 | } | |
1811 | ||
1812 | // ---- Handle paging. | |
ad6c27b7 | 1813 | /* 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 |
1814 | "Warning: array_keys() expects parameter 1 to be array, object given in ... " |
1815 | If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); ) | |
1816 | */ | |
ad6c27b7 | 1817 | $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks PHP. |
45034273 SS |
1818 | |
1819 | // If there is only a single link, we change on-the-fly the title of the page. | |
1820 | if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title']; | |
1821 | ||
1822 | // Select articles according to paging. | |
1823 | $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']); | |
1824 | $pagecount = ($pagecount==0 ? 1 : $pagecount); | |
1825 | $page=( empty($_GET['page']) ? 1 : intval($_GET['page'])); | |
1826 | $page = ( $page<1 ? 1 : $page ); | |
1827 | $page = ( $page>$pagecount ? $pagecount : $page ); | |
1828 | $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index. | |
1829 | $end = $i+$_SESSION['LINKS_PER_PAGE']; | |
1830 | $linkDisp=array(); // Links to display | |
1831 | while ($i<$end && $i<count($keys)) | |
1832 | { | |
1833 | $link = $linksToDisplay[$keys[$i]]; | |
5f85fcd8 | 1834 | $link['description']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); |
a5752e77 A |
1835 | $title=$link['title']; |
1836 | $classLi = $i%2!=0 ? '' : 'publicLinkHightLight'; | |
45034273 | 1837 | $link['class'] = ($link['private']==0 ? $classLi : 'private'); |
bec18701 | 1838 | $link['timestamp']=linkdate2timestamp($link['linkdate']); |
a5752e77 A |
1839 | $taglist = explode(' ',$link['tags']); |
1840 | uasort($taglist, 'strcasecmp'); | |
dd62b9ba | 1841 | $link['taglist']=$taglist; |
b47f515a FE |
1842 | |
1843 | if ($link["url"][0] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this. | |
1844 | strlen($link["url"]) === 7) { | |
1845 | $link["url"] = indexUrl() . $link["url"]; | |
1846 | } | |
d33c5d4c | 1847 | |
45034273 SS |
1848 | $linkDisp[$keys[$i]] = $link; |
1849 | $i++; | |
1850 | } | |
bb8f712d | 1851 | |
45034273 SS |
1852 | // Compute paging navigation |
1853 | $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] ); | |
1854 | $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] ); | |
1855 | $paging=''; | |
1856 | $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags; | |
1857 | $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags; | |
1858 | ||
bb8f712d KT |
1859 | $token = ''; if (isLoggedIn()) $token=getToken(); |
1860 | ||
45034273 SS |
1861 | // Fill all template fields. |
1862 | $PAGE->assign('linkcount',count($LINKSDB)); | |
1863 | $PAGE->assign('previous_page_url',$previous_page_url); | |
1864 | $PAGE->assign('next_page_url',$next_page_url); | |
1865 | $PAGE->assign('page_current',$page); | |
1866 | $PAGE->assign('page_max',$pagecount); | |
1867 | $PAGE->assign('result_count',count($linksToDisplay)); | |
1868 | $PAGE->assign('search_type',$search_type); | |
bb8f712d | 1869 | $PAGE->assign('search_crits',$search_crits); |
ad6c27b7 | 1870 | $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // Optional redirector URL. |
45034273 SS |
1871 | $PAGE->assign('token',$token); |
1872 | $PAGE->assign('links',$linkDisp); | |
65d62517 | 1873 | $PAGE->assign('tags', $LINKSDB->allTags()); |
45034273 SS |
1874 | return; |
1875 | } | |
1876 | ||
1877 | // Compute the thumbnail for a link. | |
bb8f712d | 1878 | // |
ad6c27b7 | 1879 | // With a link to the original URL. |
45034273 | 1880 | // Understands various services (youtube.com...) |
ad6c27b7 | 1881 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
1882 | // $href = if provided, this URL will be followed instead of $url |
1883 | // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt) | |
1884 | // Some of them may be missing. | |
1885 | // Return an empty array if no thumbnail available. | |
1886 | function computeThumbnail($url,$href=false) | |
1887 | { | |
1888 | if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array(); | |
1889 | if ($href==false) $href=$url; | |
1890 | ||
1891 | // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link. | |
ad6c27b7 | 1892 | // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg ) |
45034273 SS |
1893 | // ^^^^^^^^^^^ ^^^^^^^^^^^ |
1894 | $domain = parse_url($url,PHP_URL_HOST); | |
1895 | if ($domain=='youtube.com' || $domain=='www.youtube.com') | |
1896 | { | |
1897 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail | |
1a663a0f | 1898 | if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg', |
45034273 SS |
1899 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
1900 | } | |
1901 | if ($domain=='youtu.be') // Youtube short links | |
1902 | { | |
1903 | $path = parse_url($url,PHP_URL_PATH); | |
1a663a0f | 1904 | return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg', |
bb8f712d | 1905 | 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail'); |
45034273 SS |
1906 | } |
1907 | if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting | |
1908 | { | |
1909 | parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename. | |
1910 | if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']), | |
bb8f712d KT |
1911 | 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail'); |
1912 | } | |
1913 | ||
45034273 SS |
1914 | if ($domain=='imgur.com') |
1915 | { | |
1916 | $path = parse_url($url,PHP_URL_PATH); | |
1917 | if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available. | |
1a663a0f | 1918 | if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg', |
45034273 | 1919 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1a663a0f | 1920 | if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg', |
45034273 SS |
1921 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1922 | ||
1a663a0f | 1923 | if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg', |
45034273 SS |
1924 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1925 | } | |
1926 | if ($domain=='i.imgur.com') | |
1927 | { | |
1928 | $pi = pathinfo(parse_url($url,PHP_URL_PATH)); | |
1a663a0f | 1929 | if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg', |
45034273 SS |
1930 | 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail'); |
1931 | } | |
1932 | if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com') | |
1933 | { | |
1934 | if (strpos($url,'dailymotion.com/video/')!==false) | |
1935 | { | |
1936 | $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url); | |
1937 | return array('src'=>$thumburl, | |
1938 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail'); | |
1939 | } | |
1940 | } | |
1941 | if (endsWith($domain,'.imageshack.us')) | |
1942 | { | |
1943 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1944 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1945 | { | |
1946 | $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext; | |
1947 | return array('src'=>$thumburl, | |
1948 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail'); | |
1949 | } | |
1950 | } | |
1951 | ||
1952 | // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL. | |
1953 | // So we deport the thumbnail generation in order not to slow down page generation | |
1954 | // (and we also cache the thumbnail) | |
1955 | ||
1956 | if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache. | |
1957 | ||
1958 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com') | |
1959 | || $domain=='vimeo.com' | |
1960 | || $domain=='ted.com' || endsWith($domain,'.ted.com') | |
1961 | || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com') | |
1962 | ) | |
1963 | { | |
1964 | if ($domain=='vimeo.com') | |
ad6c27b7 | 1965 | { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric) |
45034273 SS |
1966 | $path = parse_url($url,PHP_URL_PATH); |
1967 | if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL. | |
1968 | } | |
1969 | if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) | |
ad6c27b7 | 1970 | { // Make sure this URL points to a single comic (/xxx... where xxx is numeric) |
45034273 SS |
1971 | $path = parse_url($url,PHP_URL_PATH); |
1972 | if (!preg_match('!/\d+.+?!',$path)) return array(); | |
1973 | } | |
1974 | if ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
ad6c27b7 | 1975 | { // Make sure this TED URL points to a video (/talks/...) |
45034273 SS |
1976 | $path = parse_url($url,PHP_URL_PATH); |
1977 | if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL. | |
1978 | } | |
1979 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
5f85fcd8 | 1980 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
45034273 SS |
1981 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
1982 | } | |
1983 | ||
1984 | // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif | |
1985 | // Technically speaking, we should download ALL links and check their Content-Type to see if they are images. | |
1986 | // But using the extension will do. | |
1987 | $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION)); | |
1988 | if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif') | |
1989 | { | |
1990 | $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation) | |
5f85fcd8 | 1991 | return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url), |
bb8f712d | 1992 | 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail'); |
45034273 SS |
1993 | } |
1994 | return array(); // No thumbnail. | |
1995 | ||
1996 | } | |
1997 | ||
1998 | ||
1999 | // Returns the HTML code to display a thumbnail for a link | |
2000 | // with a link to the original URL. | |
2001 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2002 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2003 | // $href = if provided, this URL will be followed instead of $url |
2004 | // Returns '' if no thumbnail available. | |
2005 | function thumbnail($url,$href=false) | |
2006 | { | |
2007 | $t = computeThumbnail($url,$href); | |
2008 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. | |
bb8f712d | 2009 | |
5f85fcd8 A |
2010 | $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"'; |
2011 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
2012 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2013 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2014 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 SS |
2015 | $html.='></a>'; |
2016 | return $html; | |
2017 | } | |
2018 | ||
45034273 SS |
2019 | // Returns the HTML code to display a thumbnail for a link |
2020 | // for the picture wall (using lazy image loading) | |
2021 | // Understands various services (youtube.com...) | |
ad6c27b7 | 2022 | // Input: $url = URL for which the thumbnail must be found. |
45034273 SS |
2023 | // $href = if provided, this URL will be followed instead of $url |
2024 | // Returns '' if no thumbnail available. | |
2025 | function lazyThumbnail($url,$href=false) | |
2026 | { | |
bb8f712d | 2027 | $t = computeThumbnail($url,$href); |
45034273 SS |
2028 | if (count($t)==0) return ''; // Empty array = no thumbnail for this URL. |
2029 | ||
5f85fcd8 | 2030 | $html='<a href="'.escape($t['href']).'">'; |
bb8f712d | 2031 | |
34047d23 | 2032 | // Lazy image |
5f85fcd8 | 2033 | $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"'; |
858c5c2b | 2034 | |
5f85fcd8 A |
2035 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; |
2036 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2037 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2038 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2039 | $html.='>'; |
bb8f712d | 2040 | |
ad6c27b7 | 2041 | // No-JavaScript fallback. |
5f85fcd8 A |
2042 | $html.='<noscript><img src="'.escape($t['src']).'"'; |
2043 | if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"'; | |
2044 | if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"'; | |
2045 | if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"'; | |
2046 | if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"'; | |
45034273 | 2047 | $html.='></noscript></a>'; |
bb8f712d | 2048 | |
45034273 SS |
2049 | return $html; |
2050 | } | |
2051 | ||
2052 | ||
2053 | // ----------------------------------------------------------------------------------------------- | |
2054 | // Installation | |
2055 | // This function should NEVER be called if the file data/config.php exists. | |
2056 | function install() | |
2057 | { | |
2058 | // On free.fr host, make sure the /sessions directory exists, otherwise login will not work. | |
f6a6ca0a | 2059 | if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705); |
45034273 | 2060 | |
f37664a2 SS |
2061 | |
2062 | // This part makes sure sessions works correctly. | |
2063 | // (Because on some hosts, session.save_path may not be set correctly, | |
2064 | // or we may not have write access to it.) | |
2065 | if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) | |
2066 | { // Step 2: Check if data in session is correct. | |
2067 | echo '<pre>Sessions do not seem to work correctly on your server.<br>'; | |
2068 | echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>'; | |
01ec1791 | 2069 | echo 'It currently points to '.session_save_path().'<br>'; |
2070 | echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'; | |
2071 | echo '<br><a href="?">Click to try again.</a></pre>'; | |
f37664a2 SS |
2072 | die; |
2073 | } | |
2074 | if (!isset($_SESSION['session_tested'])) | |
2075 | { // Step 1 : Try to store data in session and reload page. | |
2076 | $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. | |
2077 | header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data. | |
2078 | } | |
2079 | if (isset($_GET['test_session'])) | |
ad6c27b7 | 2080 | { // Step 3: Sessions are OK. Remove test parameter from URL. |
f37664a2 SS |
2081 | header('Location: '.indexUrl()); |
2082 | } | |
2083 | ||
2084 | ||
45034273 SS |
2085 | if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) |
2086 | { | |
2087 | $tz = 'UTC'; | |
d1e2f8e5 V |
2088 | if (!empty($_POST['continent']) && !empty($_POST['city'])) { |
2089 | if (isTimeZoneValid($_POST['continent'], $_POST['city'])) { | |
45034273 | 2090 | $tz = $_POST['continent'].'/'.$_POST['city']; |
d1e2f8e5 V |
2091 | } |
2092 | } | |
45034273 SS |
2093 | $GLOBALS['timezone'] = $tz; |
2094 | // Everything is ok, let's create config file. | |
2095 | $GLOBALS['login'] = $_POST['setlogin']; | |
2096 | $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. | |
2097 | $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); | |
5f85fcd8 | 2098 | $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(indexUrl()) : $_POST['title'] ); |
329e0768 | 2099 | $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); |
dd484b90 A |
2100 | try { |
2101 | writeConfig($GLOBALS, isLoggedIn()); | |
2102 | } | |
2103 | catch(Exception $e) { | |
2104 | error_log( | |
2105 | 'ERROR while writing config file after installation.' . PHP_EOL . | |
2106 | $e->getMessage() | |
2107 | ); | |
2108 | ||
2109 | // TODO: do not handle exceptions/errors in JS. | |
2110 | echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>'; | |
2111 | exit; | |
2112 | } | |
fe16b01e | 2113 | echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>'; |
45034273 SS |
2114 | exit; |
2115 | } | |
2116 | ||
2117 | // Display config form: | |
d1e2f8e5 V |
2118 | list($timezone_form, $timezone_js) = generateTimeZoneForm(); |
2119 | $timezone_html = ''; | |
2120 | if ($timezone_form != '') { | |
2121 | $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>'; | |
2122 | } | |
bb8f712d | 2123 | |
45034273 SS |
2124 | $PAGE = new pageBuilder; |
2125 | $PAGE->assign('timezone_html',$timezone_html); | |
2126 | $PAGE->assign('timezone_js',$timezone_js); | |
2127 | $PAGE->renderPage('install'); | |
2128 | exit; | |
2129 | } | |
2130 | ||
3385af12 LM |
2131 | if (!function_exists('json_encode')) { |
2132 | function json_encode($data) { | |
2133 | switch ($type = gettype($data)) { | |
2134 | case 'NULL': | |
2135 | return 'null'; | |
2136 | case 'boolean': | |
2137 | return ($data ? 'true' : 'false'); | |
2138 | case 'integer': | |
2139 | case 'double': | |
2140 | case 'float': | |
2141 | return $data; | |
2142 | case 'string': | |
2143 | return '"' . addslashes($data) . '"'; | |
2144 | case 'object': | |
2145 | $data = get_object_vars($data); | |
2146 | case 'array': | |
2147 | $output_index_count = 0; | |
2148 | $output_indexed = array(); | |
2149 | $output_associative = array(); | |
2150 | foreach ($data as $key => $value) { | |
2151 | $output_indexed[] = json_encode($value); | |
2152 | $output_associative[] = json_encode($key) . ':' . json_encode($value); | |
2153 | if ($output_index_count !== NULL && $output_index_count++ !== $key) { | |
2154 | $output_index_count = NULL; | |
2155 | } | |
2156 | } | |
2157 | if ($output_index_count !== NULL) { | |
2158 | return '[' . implode(',', $output_indexed) . ']'; | |
2159 | } else { | |
2160 | return '{' . implode(',', $output_associative) . '}'; | |
2161 | } | |
2162 | default: | |
2163 | return ''; // Not supported | |
2164 | } | |
2165 | } | |
2166 | } | |
45034273 | 2167 | |
dd484b90 | 2168 | |
45034273 | 2169 | |
ad6c27b7 | 2170 | /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL, |
45034273 | 2171 | I have deported the thumbnail URL code generation here, otherwise this would slow down page generation. |
ad6c27b7 | 2172 | The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail. |
2173 | This function is called by passing the URL: | |
45034273 | 2174 | http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL] |
ad6c27b7 | 2175 | [URL] is the URL of the link (e.g. a flickr page) |
45034273 SS |
2176 | [HMAC] is the signature for the [URL] (so that these URL cannot be forged). |
2177 | The function below will fetch the image from the webservice and store it in the cache. | |
2178 | */ | |
2179 | function genThumbnail() | |
2180 | { | |
2181 | // Make sure the parameters in the URL were generated by us. | |
2182 | $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); | |
ad6c27b7 | 2183 | if ($sign!=$_GET['hmac']) die('Naughty boy!'); |
45034273 SS |
2184 | |
2185 | // Let's see if we don't already have the image for this URL in the cache. | |
2186 | $thumbname=hash('sha1',$_GET['url']).'.jpg'; | |
2187 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) | |
2188 | { // We have the thumbnail, just serve it: | |
2189 | header('Content-Type: image/jpeg'); | |
2190 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); | |
2191 | return; | |
2192 | } | |
2193 | // We may also serve a blank image (if service did not respond) | |
2194 | $blankname=hash('sha1',$_GET['url']).'.gif'; | |
2195 | if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) | |
2196 | { | |
2197 | header('Content-Type: image/gif'); | |
2198 | echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); | |
2199 | return; | |
2200 | } | |
2201 | ||
2202 | // Otherwise, generate the thumbnail. | |
2203 | $url = $_GET['url']; | |
2204 | $domain = parse_url($url,PHP_URL_HOST); | |
2205 | ||
2206 | if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) | |
2207 | { | |
ad6c27b7 | 2208 | // Crude replacement to handle new flickr domain policy (They prefer www. now) |
45034273 SS |
2209 | $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url); |
2210 | ||
2211 | // Is this a link to an image, or to a flickr page ? | |
2212 | $imageurl=''; | |
2213 | if (endswith(parse_url($url,PHP_URL_PATH),'.jpg')) | |
ad6c27b7 | 2214 | { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg |
45034273 SS |
2215 | preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches); |
2216 | if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg'; | |
2217 | } | |
ad6c27b7 | 2218 | else // This is a flickr page (html) |
45034273 SS |
2219 | { |
2220 | list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page. | |
2221 | if (strpos($httpstatus,'200 OK')!==false) | |
2222 | { | |
ad6c27b7 | 2223 | // flickr now nicely provides the URL of the thumbnail in each flickr page. |
45034273 SS |
2224 | preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!',$data,$matches); |
2225 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2226 | ||
2227 | // In albums (and some other pages), the link rel="image_src" is not provided, | |
2228 | // but flickr provides: | |
2229 | // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" /> | |
2230 | if ($imageurl=='') | |
2231 | { | |
2232 | preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!',$data,$matches); | |
2233 | if (!empty($matches[1])) $imageurl=$matches[1]; | |
2234 | } | |
2235 | } | |
2236 | } | |
2237 | ||
2238 | if ($imageurl!='') | |
2239 | { // Let's download the image. | |
2240 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); // Image is 240x120, so 10 seconds to download should be enough. | |
2241 | if (strpos($httpstatus,'200 OK')!==false) | |
2242 | { | |
2243 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2244 | header('Content-Type: image/jpeg'); | |
2245 | echo $data; | |
2246 | return; | |
2247 | } | |
2248 | } | |
2249 | } | |
2250 | ||
2251 | elseif ($domain=='vimeo.com' ) | |
2252 | { | |
2253 | // This is more complex: we have to perform a HTTP request, then parse the result. | |
ad6c27b7 | 2254 | // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098 |
45034273 | 2255 | $vid = substr(parse_url($url,PHP_URL_PATH),1); |
5f85fcd8 | 2256 | list($httpstatus,$headers,$data) = getHTTP('https://vimeo.com/api/v2/video/'.escape($vid).'.php',5); |
45034273 SS |
2257 | if (strpos($httpstatus,'200 OK')!==false) |
2258 | { | |
2259 | $t = unserialize($data); | |
2260 | $imageurl = $t[0]['thumbnail_medium']; | |
2261 | // Then we download the image and serve it to our client. | |
2262 | list($httpstatus,$headers,$data) = getHTTP($imageurl,10); | |
2263 | if (strpos($httpstatus,'200 OK')!==false) | |
2264 | { | |
2265 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache. | |
2266 | header('Content-Type: image/jpeg'); | |
2267 | echo $data; | |
2268 | return; | |
2269 | } | |
2270 | } | |
2271 | } | |
2272 | ||
2273 | elseif ($domain=='ted.com' || endsWith($domain,'.ted.com')) | |
2274 | { | |
2275 | // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page | |
2276 | // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html | |
2277 | // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" /> | |
bb8f712d | 2278 | list($httpstatus,$headers,$data) = getHTTP($url,5); |
45034273 SS |
2279 | if (strpos($httpstatus,'200 OK')!==false) |
2280 | { | |
2281 | // Extract the link to the thumbnail | |
2282 | preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); | |
2283 | if (!empty($matches[1])) | |
2284 | { // Let's download the image. | |
2285 | $imageurl=$matches[1]; | |
2286 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2287 | if (strpos($httpstatus,'200 OK')!==false) | |
2288 | { | |
2289 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2290 | file_put_contents($filepath,$data); // Save image to cache. | |
2291 | if (resizeImage($filepath)) | |
2292 | { | |
2293 | header('Content-Type: image/jpeg'); | |
2294 | echo file_get_contents($filepath); | |
2295 | return; | |
2296 | } | |
2297 | } | |
2298 | } | |
2299 | } | |
2300 | } | |
bb8f712d | 2301 | |
45034273 SS |
2302 | elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) |
2303 | { | |
2304 | // There is no thumbnail available for xkcd comics, so download the whole image and resize it. | |
2305 | // http://xkcd.com/327/ | |
2306 | // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" /> | |
2307 | list($httpstatus,$headers,$data) = getHTTP($url,5); | |
2308 | if (strpos($httpstatus,'200 OK')!==false) | |
2309 | { | |
2310 | // Extract the link to the thumbnail | |
2311 | preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches); | |
2312 | if (!empty($matches[1])) | |
2313 | { // Let's download the image. | |
2314 | $imageurl=$matches[1]; | |
2315 | list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough. | |
2316 | if (strpos($httpstatus,'200 OK')!==false) | |
2317 | { | |
2318 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2319 | file_put_contents($filepath,$data); // Save image to cache. | |
2320 | if (resizeImage($filepath)) | |
2321 | { | |
2322 | header('Content-Type: image/jpeg'); | |
2323 | echo file_get_contents($filepath); | |
2324 | return; | |
2325 | } | |
2326 | } | |
2327 | } | |
2328 | } | |
bb8f712d | 2329 | } |
45034273 SS |
2330 | |
2331 | else | |
2332 | { | |
2333 | // For all other domains, we try to download the image and make a thumbnail. | |
2334 | list($httpstatus,$headers,$data) = getHTTP($url,30); // We allow 30 seconds max to download (and downloads are limited to 4 Mb) | |
2335 | if (strpos($httpstatus,'200 OK')!==false) | |
2336 | { | |
2337 | $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; | |
2338 | file_put_contents($filepath,$data); // Save image to cache. | |
2339 | if (resizeImage($filepath)) | |
2340 | { | |
2341 | header('Content-Type: image/jpeg'); | |
2342 | echo file_get_contents($filepath); | |
2343 | return; | |
2344 | } | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | ||
2349 | // Otherwise, return an empty image (8x8 transparent gif) | |
2350 | $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7'); | |
2351 | file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice. | |
2352 | header('Content-Type: image/gif'); | |
2353 | echo $blankgif; | |
2354 | } | |
2355 | ||
2356 | // Make a thumbnail of the image (to width: 120 pixels) | |
2357 | // Returns true if success, false otherwise. | |
2358 | function resizeImage($filepath) | |
2359 | { | |
2360 | if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible. | |
2361 | ||
2362 | // Trick: some stupid people rename GIF as JPEG... or else. | |
2363 | // So we really try to open each image type whatever the extension is. | |
2364 | $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type. | |
2365 | $im=false; | |
2366 | $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough. | |
2367 | $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath); | |
2368 | $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath); | |
2369 | if (!$im) return false; // Unable to open image (corrupted or not an image) | |
2370 | $w = imagesx($im); | |
2371 | $h = imagesy($im); | |
2372 | $ystart = 0; $yheight=$h; | |
2373 | if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; } | |
2374 | $nw = 120; // Desired width | |
2375 | $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height. | |
2376 | // Resize image: | |
2377 | $im2 = imagecreatetruecolor($nw,$nh); | |
2378 | imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight); | |
2379 | imageinterlace($im2,true); // For progressive JPEG. | |
2380 | $tempname=$filepath.'_TEMP.jpg'; | |
2381 | imagejpeg($im2, $tempname, 90); | |
2382 | imagedestroy($im); | |
2383 | imagedestroy($im2); | |
9e820906 | 2384 | unlink($filepath); |
45034273 SS |
2385 | rename($tempname,$filepath); // Overwrite original picture with thumbnail. |
2386 | return true; | |
2387 | } | |
2388 | ||
2389 | // Invalidate caches when the database is changed or the user logs out. | |
ad6c27b7 | 2390 | // (e.g. tags cache). |
45034273 SS |
2391 | function invalidateCaches() |
2392 | { | |
2393 | unset($_SESSION['tags']); // Purge cache attached to session. | |
2394 | pageCache::purgeCache(); // Purge page cache shared by sessions. | |
2395 | } | |
2396 | ||
dd484b90 A |
2397 | try { |
2398 | mergeDeprecatedConfig($GLOBALS, isLoggedIn()); | |
2399 | } catch(Exception $e) { | |
2400 | error_log( | |
2401 | 'ERROR while merging deprecated options.php file.' . PHP_EOL . | |
2402 | $e->getMessage() | |
2403 | ); | |
2404 | } | |
2405 | ||
45034273 SS |
2406 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database. |
2407 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; } | |
2408 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; } | |
2409 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; } | |
bb8f712d | 2410 | if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; } |
45034273 SS |
2411 | if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE']; |
2412 | renderPage(); | |
03545ef6 | 2413 | ?> |