2051 lines
63 KiB
PHP
2051 lines
63 KiB
PHP
<?php
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/**
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* Common DokuWiki functions
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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if(!defined('DOKU_INC')) die('meh.');
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/**
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* These constants are used with the recents function
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*/
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define('RECENTS_SKIP_DELETED', 2);
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define('RECENTS_SKIP_MINORS', 4);
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define('RECENTS_SKIP_SUBSPACES', 8);
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define('RECENTS_MEDIA_CHANGES', 16);
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define('RECENTS_MEDIA_PAGES_MIXED', 32);
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/**
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* Wrapper around htmlspecialchars()
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @see htmlspecialchars()
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*
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* @param string $string the string being converted
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* @return string converted string
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*/
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function hsc($string) {
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return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
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}
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/**
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* Checks if the given input is blank
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*
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* This is similar to empty() but will return false for "0".
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*
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* Please note: when you pass uninitialized variables, they will implicitly be created
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* with a NULL value without warning.
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*
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* To avoid this it's recommended to guard the call with isset like this:
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*
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* (isset($foo) && !blank($foo))
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* (!isset($foo) || blank($foo))
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*
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* @param $in
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* @param bool $trim Consider a string of whitespace to be blank
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* @return bool
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*/
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function blank(&$in, $trim = false) {
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if(is_null($in)) return true;
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if(is_array($in)) return empty($in);
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if($in === "\0") return true;
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if($trim && trim($in) === '') return true;
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if(strlen($in) > 0) return false;
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return empty($in);
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}
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/**
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* print a newline terminated string
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*
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* You can give an indention as optional parameter
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $string line of text
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* @param int $indent number of spaces indention
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*/
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function ptln($string, $indent = 0) {
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echo str_repeat(' ', $indent)."$string\n";
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}
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/**
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* strips control characters (<32) from the given string
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $string being stripped
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* @return string
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*/
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function stripctl($string) {
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return preg_replace('/[\x00-\x1F]+/s', '', $string);
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}
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/**
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* Return a secret token to be used for CSRF attack prevention
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @link http://en.wikipedia.org/wiki/Cross-site_request_forgery
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* @link http://christ1an.blogspot.com/2007/04/preventing-csrf-efficiently.html
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*
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* @return string
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*/
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function getSecurityToken() {
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/** @var Input $INPUT */
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global $INPUT;
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$user = $INPUT->server->str('REMOTE_USER');
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$session = session_id();
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// CSRF checks are only for logged in users - do not generate for anonymous
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if(trim($user) == '' || trim($session) == '') return '';
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return PassHash::hmac('md5', $session.$user, auth_cookiesalt());
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}
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/**
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* Check the secret CSRF token
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*
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* @param null|string $token security token or null to read it from request variable
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* @return bool success if the token matched
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*/
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function checkSecurityToken($token = null) {
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/** @var Input $INPUT */
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global $INPUT;
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if(!$INPUT->server->str('REMOTE_USER')) return true; // no logged in user, no need for a check
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if(is_null($token)) $token = $INPUT->str('sectok');
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if(getSecurityToken() != $token) {
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msg('Security Token did not match. Possible CSRF attack.', -1);
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return false;
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}
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return true;
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}
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/**
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* Print a hidden form field with a secret CSRF token
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param bool $print if true print the field, otherwise html of the field is returned
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* @return string html of hidden form field
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*/
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function formSecurityToken($print = true) {
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$ret = '<div class="no"><input type="hidden" name="sectok" value="'.getSecurityToken().'" /></div>'."\n";
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if($print) echo $ret;
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return $ret;
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}
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/**
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* Determine basic information for a request of $id
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @author Chris Smith <chris@jalakai.co.uk>
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*
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* @param string $id pageid
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* @param bool $htmlClient add info about whether is mobile browser
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* @return array with info for a request of $id
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*
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*/
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function basicinfo($id, $htmlClient=true){
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global $USERINFO;
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/* @var Input $INPUT */
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global $INPUT;
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// set info about manager/admin status.
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$info = array();
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$info['isadmin'] = false;
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$info['ismanager'] = false;
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if($INPUT->server->has('REMOTE_USER')) {
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$info['userinfo'] = $USERINFO;
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$info['perm'] = auth_quickaclcheck($id);
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$info['client'] = $INPUT->server->str('REMOTE_USER');
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if($info['perm'] == AUTH_ADMIN) {
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$info['isadmin'] = true;
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$info['ismanager'] = true;
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} elseif(auth_ismanager()) {
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$info['ismanager'] = true;
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}
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// if some outside auth were used only REMOTE_USER is set
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if(!$info['userinfo']['name']) {
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$info['userinfo']['name'] = $INPUT->server->str('REMOTE_USER');
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}
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} else {
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$info['perm'] = auth_aclcheck($id, '', null);
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$info['client'] = clientIP(true);
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}
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$info['namespace'] = getNS($id);
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// mobile detection
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if ($htmlClient) {
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$info['ismobile'] = clientismobile();
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}
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return $info;
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}
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/**
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* Return info about the current document as associative
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* array.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @return array with info about current document
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*/
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function pageinfo() {
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global $ID;
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global $REV;
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global $RANGE;
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global $lang;
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/* @var Input $INPUT */
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global $INPUT;
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$info = basicinfo($ID);
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// include ID & REV not redundant, as some parts of DokuWiki may temporarily change $ID, e.g. p_wiki_xhtml
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// FIXME ... perhaps it would be better to ensure the temporary changes weren't necessary
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$info['id'] = $ID;
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$info['rev'] = $REV;
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if($INPUT->server->has('REMOTE_USER')) {
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$sub = new Subscription();
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$info['subscribed'] = $sub->user_subscription();
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} else {
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$info['subscribed'] = false;
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}
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$info['locked'] = checklock($ID);
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$info['filepath'] = wikiFN($ID);
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$info['exists'] = file_exists($info['filepath']);
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$info['currentrev'] = @filemtime($info['filepath']);
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if($REV) {
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//check if current revision was meant
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if($info['exists'] && ($info['currentrev'] == $REV)) {
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$REV = '';
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} elseif($RANGE) {
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//section editing does not work with old revisions!
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$REV = '';
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$RANGE = '';
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msg($lang['nosecedit'], 0);
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} else {
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//really use old revision
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$info['filepath'] = wikiFN($ID, $REV);
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$info['exists'] = file_exists($info['filepath']);
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}
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}
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$info['rev'] = $REV;
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if($info['exists']) {
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$info['writable'] = (is_writable($info['filepath']) &&
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($info['perm'] >= AUTH_EDIT));
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} else {
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$info['writable'] = ($info['perm'] >= AUTH_CREATE);
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}
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$info['editable'] = ($info['writable'] && empty($info['locked']));
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$info['lastmod'] = @filemtime($info['filepath']);
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//load page meta data
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$info['meta'] = p_get_metadata($ID);
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//who's the editor
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$pagelog = new PageChangeLog($ID, 1024);
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if($REV) {
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$revinfo = $pagelog->getRevisionInfo($REV);
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} else {
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if(!empty($info['meta']['last_change']) && is_array($info['meta']['last_change'])) {
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$revinfo = $info['meta']['last_change'];
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} else {
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$revinfo = $pagelog->getRevisionInfo($info['lastmod']);
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// cache most recent changelog line in metadata if missing and still valid
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if($revinfo !== false) {
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$info['meta']['last_change'] = $revinfo;
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p_set_metadata($ID, array('last_change' => $revinfo));
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}
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}
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}
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//and check for an external edit
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if($revinfo !== false && $revinfo['date'] != $info['lastmod']) {
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// cached changelog line no longer valid
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$revinfo = false;
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$info['meta']['last_change'] = $revinfo;
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p_set_metadata($ID, array('last_change' => $revinfo));
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}
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$info['ip'] = $revinfo['ip'];
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$info['user'] = $revinfo['user'];
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$info['sum'] = $revinfo['sum'];
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// See also $INFO['meta']['last_change'] which is the most recent log line for page $ID.
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// Use $INFO['meta']['last_change']['type']===DOKU_CHANGE_TYPE_MINOR_EDIT in place of $info['minor'].
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if($revinfo['user']) {
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$info['editor'] = $revinfo['user'];
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} else {
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$info['editor'] = $revinfo['ip'];
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}
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// draft
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$draft = getCacheName($info['client'].$ID, '.draft');
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if(file_exists($draft)) {
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if(@filemtime($draft) < @filemtime(wikiFN($ID))) {
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// remove stale draft
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@unlink($draft);
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} else {
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$info['draft'] = $draft;
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}
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}
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return $info;
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}
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/**
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* Return information about the current media item as an associative array.
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*
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* @return array with info about current media item
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*/
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function mediainfo(){
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global $NS;
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global $IMG;
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$info = basicinfo("$NS:*");
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$info['image'] = $IMG;
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return $info;
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}
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/**
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* Build an string of URL parameters
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*
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* @author Andreas Gohr
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*
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* @param array $params array with key-value pairs
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* @param string $sep series of pairs are separated by this character
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* @return string query string
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*/
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function buildURLparams($params, $sep = '&') {
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$url = '';
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$amp = false;
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foreach($params as $key => $val) {
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if($amp) $url .= $sep;
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$url .= rawurlencode($key).'=';
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$url .= rawurlencode((string) $val);
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$amp = true;
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}
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return $url;
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}
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/**
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* Build an string of html tag attributes
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*
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* Skips keys starting with '_', values get HTML encoded
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*
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* @author Andreas Gohr
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*
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* @param array $params array with (attribute name-attribute value) pairs
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* @param bool $skipempty skip empty string values?
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* @return string
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*/
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function buildAttributes($params, $skipempty = false) {
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$url = '';
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$white = false;
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foreach($params as $key => $val) {
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if($key{0} == '_') continue;
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if($val === '' && $skipempty) continue;
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if($white) $url .= ' ';
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$url .= $key.'="';
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$url .= htmlspecialchars($val);
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$url .= '"';
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$white = true;
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}
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return $url;
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}
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/**
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* This builds the breadcrumb trail and returns it as array
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @return string[] with the data: array(pageid=>name, ... )
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*/
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function breadcrumbs() {
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// we prepare the breadcrumbs early for quick session closing
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static $crumbs = null;
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if($crumbs != null) return $crumbs;
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global $ID;
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global $ACT;
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global $conf;
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//first visit?
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$crumbs = isset($_SESSION[DOKU_COOKIE]['bc']) ? $_SESSION[DOKU_COOKIE]['bc'] : array();
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//we only save on show and existing wiki documents
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$file = wikiFN($ID);
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if($ACT != 'show' || !file_exists($file)) {
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$_SESSION[DOKU_COOKIE]['bc'] = $crumbs;
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return $crumbs;
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}
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// page names
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$name = noNSorNS($ID);
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if(useHeading('navigation')) {
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// get page title
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$title = p_get_first_heading($ID, METADATA_RENDER_USING_SIMPLE_CACHE);
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if($title) {
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$name = $title;
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}
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}
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//remove ID from array
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if(isset($crumbs[$ID])) {
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unset($crumbs[$ID]);
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}
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//add to array
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$crumbs[$ID] = $name;
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//reduce size
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while(count($crumbs) > $conf['breadcrumbs']) {
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array_shift($crumbs);
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}
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//save to session
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$_SESSION[DOKU_COOKIE]['bc'] = $crumbs;
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return $crumbs;
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}
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/**
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* Filter for page IDs
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*
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* This is run on a ID before it is outputted somewhere
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* currently used to replace the colon with something else
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* on Windows (non-IIS) systems and to have proper URL encoding
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*
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* See discussions at https://github.com/splitbrain/dokuwiki/pull/84 and
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* https://github.com/splitbrain/dokuwiki/pull/173 why we use a whitelist of
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* unaffected servers instead of blacklisting affected servers here.
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*
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* Urlencoding is ommitted when the second parameter is false
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $id pageid being filtered
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* @param bool $ue apply urlencoding?
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* @return string
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*/
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function idfilter($id, $ue = true) {
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global $conf;
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/* @var Input $INPUT */
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global $INPUT;
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if($conf['useslash'] && $conf['userewrite']) {
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$id = strtr($id, ':', '/');
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} elseif(strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' &&
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$conf['userewrite'] &&
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strpos($INPUT->server->str('SERVER_SOFTWARE'), 'Microsoft-IIS') === false
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) {
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$id = strtr($id, ':', ';');
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}
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if($ue) {
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$id = rawurlencode($id);
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$id = str_replace('%3A', ':', $id); //keep as colon
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$id = str_replace('%3B', ';', $id); //keep as semicolon
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$id = str_replace('%2F', '/', $id); //keep as slash
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}
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return $id;
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}
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/**
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* This builds a link to a wikipage
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*
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* It handles URL rewriting and adds additional parameters
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*
|
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* @author Andreas Gohr <andi@splitbrain.org>
|
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*
|
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* @param string $id page id, defaults to start page
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* @param string|array $urlParameters URL parameters, associative array recommended
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* @param bool $absolute request an absolute URL instead of relative
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* @param string $separator parameter separator
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* @return string
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*/
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function wl($id = '', $urlParameters = '', $absolute = false, $separator = '&') {
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global $conf;
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if(is_array($urlParameters)) {
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if(isset($urlParameters['rev']) && !$urlParameters['rev']) unset($urlParameters['rev']);
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if(isset($urlParameters['at']) && $conf['date_at_format']) $urlParameters['at'] = date($conf['date_at_format'],$urlParameters['at']);
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$urlParameters = buildURLparams($urlParameters, $separator);
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} else {
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$urlParameters = str_replace(',', $separator, $urlParameters);
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}
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if($id === '') {
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$id = $conf['start'];
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}
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$id = idfilter($id);
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if($absolute) {
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$xlink = DOKU_URL;
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} else {
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$xlink = DOKU_BASE;
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}
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if($conf['userewrite'] == 2) {
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$xlink .= DOKU_SCRIPT.'/'.$id;
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if($urlParameters) $xlink .= '?'.$urlParameters;
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} elseif($conf['userewrite']) {
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$xlink .= $id;
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if($urlParameters) $xlink .= '?'.$urlParameters;
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} elseif($id) {
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$xlink .= DOKU_SCRIPT.'?id='.$id;
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if($urlParameters) $xlink .= $separator.$urlParameters;
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} else {
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$xlink .= DOKU_SCRIPT;
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if($urlParameters) $xlink .= '?'.$urlParameters;
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}
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return $xlink;
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}
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|
|
/**
|
|
* This builds a link to an alternate page format
|
|
*
|
|
* Handles URL rewriting if enabled. Follows the style of wl().
|
|
*
|
|
* @author Ben Coburn <btcoburn@silicodon.net>
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|
* @param string $id page id, defaults to start page
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* @param string $format the export renderer to use
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* @param string|array $urlParameters URL parameters, associative array recommended
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* @param bool $abs request an absolute URL instead of relative
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* @param string $sep parameter separator
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* @return string
|
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*/
|
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function exportlink($id = '', $format = 'raw', $urlParameters = '', $abs = false, $sep = '&') {
|
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global $conf;
|
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if(is_array($urlParameters)) {
|
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$urlParameters = buildURLparams($urlParameters, $sep);
|
|
} else {
|
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$urlParameters = str_replace(',', $sep, $urlParameters);
|
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}
|
|
|
|
$format = rawurlencode($format);
|
|
$id = idfilter($id);
|
|
if($abs) {
|
|
$xlink = DOKU_URL;
|
|
} else {
|
|
$xlink = DOKU_BASE;
|
|
}
|
|
|
|
if($conf['userewrite'] == 2) {
|
|
$xlink .= DOKU_SCRIPT.'/'.$id.'?do=export_'.$format;
|
|
if($urlParameters) $xlink .= $sep.$urlParameters;
|
|
} elseif($conf['userewrite'] == 1) {
|
|
$xlink .= '_export/'.$format.'/'.$id;
|
|
if($urlParameters) $xlink .= '?'.$urlParameters;
|
|
} else {
|
|
$xlink .= DOKU_SCRIPT.'?do=export_'.$format.$sep.'id='.$id;
|
|
if($urlParameters) $xlink .= $sep.$urlParameters;
|
|
}
|
|
|
|
return $xlink;
|
|
}
|
|
|
|
/**
|
|
* Build a link to a media file
|
|
*
|
|
* Will return a link to the detail page if $direct is false
|
|
*
|
|
* The $more parameter should always be given as array, the function then
|
|
* will strip default parameters to produce even cleaner URLs
|
|
*
|
|
* @param string $id the media file id or URL
|
|
* @param mixed $more string or array with additional parameters
|
|
* @param bool $direct link to detail page if false
|
|
* @param string $sep URL parameter separator
|
|
* @param bool $abs Create an absolute URL
|
|
* @return string
|
|
*/
|
|
function ml($id = '', $more = '', $direct = true, $sep = '&', $abs = false) {
|
|
global $conf;
|
|
$isexternalimage = media_isexternal($id);
|
|
if(!$isexternalimage) {
|
|
$id = cleanID($id);
|
|
}
|
|
|
|
if(is_array($more)) {
|
|
// add token for resized images
|
|
if(!empty($more['w']) || !empty($more['h']) || $isexternalimage){
|
|
$more['tok'] = media_get_token($id,$more['w'],$more['h']);
|
|
}
|
|
// strip defaults for shorter URLs
|
|
if(isset($more['cache']) && $more['cache'] == 'cache') unset($more['cache']);
|
|
if(empty($more['w'])) unset($more['w']);
|
|
if(empty($more['h'])) unset($more['h']);
|
|
if(isset($more['id']) && $direct) unset($more['id']);
|
|
if(isset($more['rev']) && !$more['rev']) unset($more['rev']);
|
|
$more = buildURLparams($more, $sep);
|
|
} else {
|
|
$matches = array();
|
|
if (preg_match_all('/\b(w|h)=(\d*)\b/',$more,$matches,PREG_SET_ORDER) || $isexternalimage){
|
|
$resize = array('w'=>0, 'h'=>0);
|
|
foreach ($matches as $match){
|
|
$resize[$match[1]] = $match[2];
|
|
}
|
|
$more .= $more === '' ? '' : $sep;
|
|
$more .= 'tok='.media_get_token($id,$resize['w'],$resize['h']);
|
|
}
|
|
$more = str_replace('cache=cache', '', $more); //skip default
|
|
$more = str_replace(',,', ',', $more);
|
|
$more = str_replace(',', $sep, $more);
|
|
}
|
|
|
|
if($abs) {
|
|
$xlink = DOKU_URL;
|
|
} else {
|
|
$xlink = DOKU_BASE;
|
|
}
|
|
|
|
// external URLs are always direct without rewriting
|
|
if($isexternalimage) {
|
|
$xlink .= 'lib/exe/fetch.php';
|
|
$xlink .= '?'.$more;
|
|
$xlink .= $sep.'media='.rawurlencode($id);
|
|
return $xlink;
|
|
}
|
|
|
|
$id = idfilter($id);
|
|
|
|
// decide on scriptname
|
|
if($direct) {
|
|
if($conf['userewrite'] == 1) {
|
|
$script = '_media';
|
|
} else {
|
|
$script = 'lib/exe/fetch.php';
|
|
}
|
|
} else {
|
|
if($conf['userewrite'] == 1) {
|
|
$script = '_detail';
|
|
} else {
|
|
$script = 'lib/exe/detail.php';
|
|
}
|
|
}
|
|
|
|
// build URL based on rewrite mode
|
|
if($conf['userewrite']) {
|
|
$xlink .= $script.'/'.$id;
|
|
if($more) $xlink .= '?'.$more;
|
|
} else {
|
|
if($more) {
|
|
$xlink .= $script.'?'.$more;
|
|
$xlink .= $sep.'media='.$id;
|
|
} else {
|
|
$xlink .= $script.'?media='.$id;
|
|
}
|
|
}
|
|
|
|
return $xlink;
|
|
}
|
|
|
|
/**
|
|
* Returns the URL to the DokuWiki base script
|
|
*
|
|
* Consider using wl() instead, unless you absoutely need the doku.php endpoint
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @return string
|
|
*/
|
|
function script() {
|
|
return DOKU_BASE.DOKU_SCRIPT;
|
|
}
|
|
|
|
/**
|
|
* Spamcheck against wordlist
|
|
*
|
|
* Checks the wikitext against a list of blocked expressions
|
|
* returns true if the text contains any bad words
|
|
*
|
|
* Triggers COMMON_WORDBLOCK_BLOCKED
|
|
*
|
|
* Action Plugins can use this event to inspect the blocked data
|
|
* and gain information about the user who was blocked.
|
|
*
|
|
* Event data:
|
|
* data['matches'] - array of matches
|
|
* data['userinfo'] - information about the blocked user
|
|
* [ip] - ip address
|
|
* [user] - username (if logged in)
|
|
* [mail] - mail address (if logged in)
|
|
* [name] - real name (if logged in)
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @author Michael Klier <chi@chimeric.de>
|
|
*
|
|
* @param string $text - optional text to check, if not given the globals are used
|
|
* @return bool - true if a spam word was found
|
|
*/
|
|
function checkwordblock($text = '') {
|
|
global $TEXT;
|
|
global $PRE;
|
|
global $SUF;
|
|
global $SUM;
|
|
global $conf;
|
|
global $INFO;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if(!$conf['usewordblock']) return false;
|
|
|
|
if(!$text) $text = "$PRE $TEXT $SUF $SUM";
|
|
|
|
// we prepare the text a tiny bit to prevent spammers circumventing URL checks
|
|
$text = preg_replace('!(\b)(www\.[\w.:?\-;,]+?\.[\w.:?\-;,]+?[\w/\#~:.?+=&%@\!\-.:?\-;,]+?)([.:?\-;,]*[^\w/\#~:.?+=&%@\!\-.:?\-;,])!i', '\1http://\2 \2\3', $text);
|
|
|
|
$wordblocks = getWordblocks();
|
|
// how many lines to read at once (to work around some PCRE limits)
|
|
if(version_compare(phpversion(), '4.3.0', '<')) {
|
|
// old versions of PCRE define a maximum of parenthesises even if no
|
|
// backreferences are used - the maximum is 99
|
|
// this is very bad performancewise and may even be too high still
|
|
$chunksize = 40;
|
|
} else {
|
|
// read file in chunks of 200 - this should work around the
|
|
// MAX_PATTERN_SIZE in modern PCRE
|
|
$chunksize = 200;
|
|
}
|
|
while($blocks = array_splice($wordblocks, 0, $chunksize)) {
|
|
$re = array();
|
|
// build regexp from blocks
|
|
foreach($blocks as $block) {
|
|
$block = preg_replace('/#.*$/', '', $block);
|
|
$block = trim($block);
|
|
if(empty($block)) continue;
|
|
$re[] = $block;
|
|
}
|
|
if(count($re) && preg_match('#('.join('|', $re).')#si', $text, $matches)) {
|
|
// prepare event data
|
|
$data = array();
|
|
$data['matches'] = $matches;
|
|
$data['userinfo']['ip'] = $INPUT->server->str('REMOTE_ADDR');
|
|
if($INPUT->server->str('REMOTE_USER')) {
|
|
$data['userinfo']['user'] = $INPUT->server->str('REMOTE_USER');
|
|
$data['userinfo']['name'] = $INFO['userinfo']['name'];
|
|
$data['userinfo']['mail'] = $INFO['userinfo']['mail'];
|
|
}
|
|
$callback = create_function('', 'return true;');
|
|
return trigger_event('COMMON_WORDBLOCK_BLOCKED', $data, $callback, true);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Return the IP of the client
|
|
*
|
|
* Honours X-Forwarded-For and X-Real-IP Proxy Headers
|
|
*
|
|
* It returns a comma separated list of IPs if the above mentioned
|
|
* headers are set. If the single parameter is set, it tries to return
|
|
* a routable public address, prefering the ones suplied in the X
|
|
* headers
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param boolean $single If set only a single IP is returned
|
|
* @return string
|
|
*/
|
|
function clientIP($single = false) {
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
$ip = array();
|
|
$ip[] = $INPUT->server->str('REMOTE_ADDR');
|
|
if($INPUT->server->str('HTTP_X_FORWARDED_FOR')) {
|
|
$ip = array_merge($ip, explode(',', str_replace(' ', '', $INPUT->server->str('HTTP_X_FORWARDED_FOR'))));
|
|
}
|
|
if($INPUT->server->str('HTTP_X_REAL_IP')) {
|
|
$ip = array_merge($ip, explode(',', str_replace(' ', '', $INPUT->server->str('HTTP_X_REAL_IP'))));
|
|
}
|
|
|
|
// some IPv4/v6 regexps borrowed from Feyd
|
|
// see: http://forums.devnetwork.net/viewtopic.php?f=38&t=53479
|
|
$dec_octet = '(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|[0-9])';
|
|
$hex_digit = '[A-Fa-f0-9]';
|
|
$h16 = "{$hex_digit}{1,4}";
|
|
$IPv4Address = "$dec_octet\\.$dec_octet\\.$dec_octet\\.$dec_octet";
|
|
$ls32 = "(?:$h16:$h16|$IPv4Address)";
|
|
$IPv6Address =
|
|
"(?:(?:{$IPv4Address})|(?:".
|
|
"(?:$h16:){6}$ls32".
|
|
"|::(?:$h16:){5}$ls32".
|
|
"|(?:$h16)?::(?:$h16:){4}$ls32".
|
|
"|(?:(?:$h16:){0,1}$h16)?::(?:$h16:){3}$ls32".
|
|
"|(?:(?:$h16:){0,2}$h16)?::(?:$h16:){2}$ls32".
|
|
"|(?:(?:$h16:){0,3}$h16)?::(?:$h16:){1}$ls32".
|
|
"|(?:(?:$h16:){0,4}$h16)?::$ls32".
|
|
"|(?:(?:$h16:){0,5}$h16)?::$h16".
|
|
"|(?:(?:$h16:){0,6}$h16)?::".
|
|
")(?:\\/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))?)";
|
|
|
|
// remove any non-IP stuff
|
|
$cnt = count($ip);
|
|
$match = array();
|
|
for($i = 0; $i < $cnt; $i++) {
|
|
if(preg_match("/^$IPv4Address$/", $ip[$i], $match) || preg_match("/^$IPv6Address$/", $ip[$i], $match)) {
|
|
$ip[$i] = $match[0];
|
|
} else {
|
|
$ip[$i] = '';
|
|
}
|
|
if(empty($ip[$i])) unset($ip[$i]);
|
|
}
|
|
$ip = array_values(array_unique($ip));
|
|
if(!$ip[0]) $ip[0] = '0.0.0.0'; // for some strange reason we don't have a IP
|
|
|
|
if(!$single) return join(',', $ip);
|
|
|
|
// decide which IP to use, trying to avoid local addresses
|
|
$ip = array_reverse($ip);
|
|
foreach($ip as $i) {
|
|
if(preg_match('/^(::1|[fF][eE]80:|127\.|10\.|192\.168\.|172\.((1[6-9])|(2[0-9])|(3[0-1]))\.)/', $i)) {
|
|
continue;
|
|
} else {
|
|
return $i;
|
|
}
|
|
}
|
|
// still here? just use the first (last) address
|
|
return $ip[0];
|
|
}
|
|
|
|
/**
|
|
* Check if the browser is on a mobile device
|
|
*
|
|
* Adapted from the example code at url below
|
|
*
|
|
* @link http://www.brainhandles.com/2007/10/15/detecting-mobile-browsers/#code
|
|
*
|
|
* @return bool if true, client is mobile browser; otherwise false
|
|
*/
|
|
function clientismobile() {
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if($INPUT->server->has('HTTP_X_WAP_PROFILE')) return true;
|
|
|
|
if(preg_match('/wap\.|\.wap/i', $INPUT->server->str('HTTP_ACCEPT'))) return true;
|
|
|
|
if(!$INPUT->server->has('HTTP_USER_AGENT')) return false;
|
|
|
|
$uamatches = 'midp|j2me|avantg|docomo|novarra|palmos|palmsource|240x320|opwv|chtml|pda|windows ce|mmp\/|blackberry|mib\/|symbian|wireless|nokia|hand|mobi|phone|cdm|up\.b|audio|SIE\-|SEC\-|samsung|HTC|mot\-|mitsu|sagem|sony|alcatel|lg|erics|vx|NEC|philips|mmm|xx|panasonic|sharp|wap|sch|rover|pocket|benq|java|pt|pg|vox|amoi|bird|compal|kg|voda|sany|kdd|dbt|sendo|sgh|gradi|jb|\d\d\di|moto';
|
|
|
|
if(preg_match("/$uamatches/i", $INPUT->server->str('HTTP_USER_AGENT'))) return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* check if a given link is interwiki link
|
|
*
|
|
* @param string $link the link, e.g. "wiki>page"
|
|
* @return bool
|
|
*/
|
|
function link_isinterwiki($link){
|
|
if (preg_match('/^[a-zA-Z0-9\.]+>/u',$link)) return true;
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Convert one or more comma separated IPs to hostnames
|
|
*
|
|
* If $conf['dnslookups'] is disabled it simply returns the input string
|
|
*
|
|
* @author Glen Harris <astfgl@iamnota.org>
|
|
*
|
|
* @param string $ips comma separated list of IP addresses
|
|
* @return string a comma separated list of hostnames
|
|
*/
|
|
function gethostsbyaddrs($ips) {
|
|
global $conf;
|
|
if(!$conf['dnslookups']) return $ips;
|
|
|
|
$hosts = array();
|
|
$ips = explode(',', $ips);
|
|
|
|
if(is_array($ips)) {
|
|
foreach($ips as $ip) {
|
|
$hosts[] = gethostbyaddr(trim($ip));
|
|
}
|
|
return join(',', $hosts);
|
|
} else {
|
|
return gethostbyaddr(trim($ips));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if a given page is currently locked.
|
|
*
|
|
* removes stale lockfiles
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id
|
|
* @return bool page is locked?
|
|
*/
|
|
function checklock($id) {
|
|
global $conf;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
$lock = wikiLockFN($id);
|
|
|
|
//no lockfile
|
|
if(!file_exists($lock)) return false;
|
|
|
|
//lockfile expired
|
|
if((time() - filemtime($lock)) > $conf['locktime']) {
|
|
@unlink($lock);
|
|
return false;
|
|
}
|
|
|
|
//my own lock
|
|
@list($ip, $session) = explode("\n", io_readFile($lock));
|
|
if($ip == $INPUT->server->str('REMOTE_USER') || $ip == clientIP() || (session_id() && $session == session_id())) {
|
|
return false;
|
|
}
|
|
|
|
return $ip;
|
|
}
|
|
|
|
/**
|
|
* Lock a page for editing
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id to lock
|
|
*/
|
|
function lock($id) {
|
|
global $conf;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if($conf['locktime'] == 0) {
|
|
return;
|
|
}
|
|
|
|
$lock = wikiLockFN($id);
|
|
if($INPUT->server->str('REMOTE_USER')) {
|
|
io_saveFile($lock, $INPUT->server->str('REMOTE_USER'));
|
|
} else {
|
|
io_saveFile($lock, clientIP()."\n".session_id());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unlock a page if it was locked by the user
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id to unlock
|
|
* @return bool true if a lock was removed
|
|
*/
|
|
function unlock($id) {
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
$lock = wikiLockFN($id);
|
|
if(file_exists($lock)) {
|
|
@list($ip, $session) = explode("\n", io_readFile($lock));
|
|
if($ip == $INPUT->server->str('REMOTE_USER') || $ip == clientIP() || $session == session_id()) {
|
|
@unlink($lock);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* convert line ending to unix format
|
|
*
|
|
* also makes sure the given text is valid UTF-8
|
|
*
|
|
* @see formText() for 2crlf conversion
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $text
|
|
* @return string
|
|
*/
|
|
function cleanText($text) {
|
|
$text = preg_replace("/(\015\012)|(\015)/", "\012", $text);
|
|
|
|
// if the text is not valid UTF-8 we simply assume latin1
|
|
// this won't break any worse than it breaks with the wrong encoding
|
|
// but might actually fix the problem in many cases
|
|
if(!utf8_check($text)) $text = utf8_encode($text);
|
|
|
|
return $text;
|
|
}
|
|
|
|
/**
|
|
* Prepares text for print in Webforms by encoding special chars.
|
|
* It also converts line endings to Windows format which is
|
|
* pseudo standard for webforms.
|
|
*
|
|
* @see cleanText() for 2unix conversion
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $text
|
|
* @return string
|
|
*/
|
|
function formText($text) {
|
|
$text = str_replace("\012", "\015\012", $text);
|
|
return htmlspecialchars($text);
|
|
}
|
|
|
|
/**
|
|
* Returns the specified local text in raw format
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id
|
|
* @param string $ext extension of file being read, default 'txt'
|
|
* @return string
|
|
*/
|
|
function rawLocale($id, $ext = 'txt') {
|
|
return io_readFile(localeFN($id, $ext));
|
|
}
|
|
|
|
/**
|
|
* Returns the raw WikiText
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id
|
|
* @param string|int $rev timestamp when a revision of wikitext is desired
|
|
* @return string
|
|
*/
|
|
function rawWiki($id, $rev = '') {
|
|
return io_readWikiPage(wikiFN($id, $rev), $id, $rev);
|
|
}
|
|
|
|
/**
|
|
* Returns the pagetemplate contents for the ID's namespace
|
|
*
|
|
* @triggers COMMON_PAGETPL_LOAD
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id the id of the page to be created
|
|
* @return string parsed pagetemplate content
|
|
*/
|
|
function pageTemplate($id) {
|
|
global $conf;
|
|
|
|
if(is_array($id)) $id = $id[0];
|
|
|
|
// prepare initial event data
|
|
$data = array(
|
|
'id' => $id, // the id of the page to be created
|
|
'tpl' => '', // the text used as template
|
|
'tplfile' => '', // the file above text was/should be loaded from
|
|
'doreplace' => true // should wildcard replacements be done on the text?
|
|
);
|
|
|
|
$evt = new Doku_Event('COMMON_PAGETPL_LOAD', $data);
|
|
if($evt->advise_before(true)) {
|
|
// the before event might have loaded the content already
|
|
if(empty($data['tpl'])) {
|
|
// if the before event did not set a template file, try to find one
|
|
if(empty($data['tplfile'])) {
|
|
$path = dirname(wikiFN($id));
|
|
if(file_exists($path.'/_template.txt')) {
|
|
$data['tplfile'] = $path.'/_template.txt';
|
|
} else {
|
|
// search upper namespaces for templates
|
|
$len = strlen(rtrim($conf['datadir'], '/'));
|
|
while(strlen($path) >= $len) {
|
|
if(file_exists($path.'/__template.txt')) {
|
|
$data['tplfile'] = $path.'/__template.txt';
|
|
break;
|
|
}
|
|
$path = substr($path, 0, strrpos($path, '/'));
|
|
}
|
|
}
|
|
}
|
|
// load the content
|
|
$data['tpl'] = io_readFile($data['tplfile']);
|
|
}
|
|
if($data['doreplace']) parsePageTemplate($data);
|
|
}
|
|
$evt->advise_after();
|
|
unset($evt);
|
|
|
|
return $data['tpl'];
|
|
}
|
|
|
|
/**
|
|
* Performs common page template replacements
|
|
* This works on data from COMMON_PAGETPL_LOAD
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param array $data array with event data
|
|
* @return string
|
|
*/
|
|
function parsePageTemplate(&$data) {
|
|
/**
|
|
* @var string $id the id of the page to be created
|
|
* @var string $tpl the text used as template
|
|
* @var string $tplfile the file above text was/should be loaded from
|
|
* @var bool $doreplace should wildcard replacements be done on the text?
|
|
*/
|
|
extract($data);
|
|
|
|
global $USERINFO;
|
|
global $conf;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
// replace placeholders
|
|
$file = noNS($id);
|
|
$page = strtr($file, $conf['sepchar'], ' ');
|
|
|
|
$tpl = str_replace(
|
|
array(
|
|
'@ID@',
|
|
'@NS@',
|
|
'@FILE@',
|
|
'@!FILE@',
|
|
'@!FILE!@',
|
|
'@PAGE@',
|
|
'@!PAGE@',
|
|
'@!!PAGE@',
|
|
'@!PAGE!@',
|
|
'@USER@',
|
|
'@NAME@',
|
|
'@MAIL@',
|
|
'@DATE@',
|
|
),
|
|
array(
|
|
$id,
|
|
getNS($id),
|
|
$file,
|
|
utf8_ucfirst($file),
|
|
utf8_strtoupper($file),
|
|
$page,
|
|
utf8_ucfirst($page),
|
|
utf8_ucwords($page),
|
|
utf8_strtoupper($page),
|
|
$INPUT->server->str('REMOTE_USER'),
|
|
$USERINFO['name'],
|
|
$USERINFO['mail'],
|
|
$conf['dformat'],
|
|
), $tpl
|
|
);
|
|
|
|
// we need the callback to work around strftime's char limit
|
|
$tpl = preg_replace_callback('/%./', create_function('$m', 'return strftime($m[0]);'), $tpl);
|
|
$data['tpl'] = $tpl;
|
|
return $tpl;
|
|
}
|
|
|
|
/**
|
|
* Returns the raw Wiki Text in three slices.
|
|
*
|
|
* The range parameter needs to have the form "from-to"
|
|
* and gives the range of the section in bytes - no
|
|
* UTF-8 awareness is needed.
|
|
* The returned order is prefix, section and suffix.
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $range in form "from-to"
|
|
* @param string $id page id
|
|
* @param string $rev optional, the revision timestamp
|
|
* @return string[] with three slices
|
|
*/
|
|
function rawWikiSlices($range, $id, $rev = '') {
|
|
$text = io_readWikiPage(wikiFN($id, $rev), $id, $rev);
|
|
|
|
// Parse range
|
|
list($from, $to) = explode('-', $range, 2);
|
|
// Make range zero-based, use defaults if marker is missing
|
|
$from = !$from ? 0 : ($from - 1);
|
|
$to = !$to ? strlen($text) : ($to - 1);
|
|
|
|
$slices = array();
|
|
$slices[0] = substr($text, 0, $from);
|
|
$slices[1] = substr($text, $from, $to - $from);
|
|
$slices[2] = substr($text, $to);
|
|
return $slices;
|
|
}
|
|
|
|
/**
|
|
* Joins wiki text slices
|
|
*
|
|
* function to join the text slices.
|
|
* When the pretty parameter is set to true it adds additional empty
|
|
* lines between sections if needed (used on saving).
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $pre prefix
|
|
* @param string $text text in the middle
|
|
* @param string $suf suffix
|
|
* @param bool $pretty add additional empty lines between sections
|
|
* @return string
|
|
*/
|
|
function con($pre, $text, $suf, $pretty = false) {
|
|
if($pretty) {
|
|
if($pre !== '' && substr($pre, -1) !== "\n" &&
|
|
substr($text, 0, 1) !== "\n"
|
|
) {
|
|
$pre .= "\n";
|
|
}
|
|
if($suf !== '' && substr($text, -1) !== "\n" &&
|
|
substr($suf, 0, 1) !== "\n"
|
|
) {
|
|
$text .= "\n";
|
|
}
|
|
}
|
|
|
|
return $pre.$text.$suf;
|
|
}
|
|
|
|
/**
|
|
* Checks if the current page version is newer than the last entry in the page's
|
|
* changelog. If so, we assume it has been an external edit and we create an
|
|
* attic copy and add a proper changelog line.
|
|
*
|
|
* This check is only executed when the page is about to be saved again from the
|
|
* wiki, triggered in @see saveWikiText()
|
|
*
|
|
* @param string $id the page ID
|
|
*/
|
|
function detectExternalEdit($id) {
|
|
global $lang;
|
|
|
|
$fileLastMod = wikiFN($id);
|
|
$lastMod = @filemtime($fileLastMod); // from page
|
|
$pagelog = new PageChangeLog($id, 1024);
|
|
$lastRev = $pagelog->getRevisions(-1, 1); // from changelog
|
|
$lastRev = (int) (empty($lastRev) ? 0 : $lastRev[0]);
|
|
|
|
if(!file_exists(wikiFN($id, $lastMod)) && file_exists($fileLastMod) && $lastMod >= $lastRev) {
|
|
// add old revision to the attic if missing
|
|
saveOldRevision($id);
|
|
// add a changelog entry if this edit came from outside dokuwiki
|
|
if($lastMod > $lastRev) {
|
|
$fileLastRev = wikiFN($id, $lastRev);
|
|
$revinfo = $pagelog->getRevisionInfo($lastRev);
|
|
if(empty($lastRev) || !file_exists($fileLastRev) || $revinfo['type'] == DOKU_CHANGE_TYPE_DELETE) {
|
|
$filesize_old = 0;
|
|
} else {
|
|
$filesize_old = io_getSizeFile($fileLastRev);
|
|
}
|
|
$filesize_new = filesize($fileLastMod);
|
|
$sizechange = $filesize_new - $filesize_old;
|
|
|
|
addLogEntry($lastMod, $id, DOKU_CHANGE_TYPE_EDIT, $lang['external_edit'], '', array('ExternalEdit'=> true), $sizechange);
|
|
// remove soon to be stale instructions
|
|
$cache = new cache_instructions($id, $fileLastMod);
|
|
$cache->removeCache();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Saves a wikitext by calling io_writeWikiPage.
|
|
* Also directs changelog and attic updates.
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @author Ben Coburn <btcoburn@silicodon.net>
|
|
*
|
|
* @param string $id page id
|
|
* @param string $text wikitext being saved
|
|
* @param string $summary summary of text update
|
|
* @param bool $minor mark this saved version as minor update
|
|
*/
|
|
function saveWikiText($id, $text, $summary, $minor = false) {
|
|
/* Note to developers:
|
|
This code is subtle and delicate. Test the behavior of
|
|
the attic and changelog with dokuwiki and external edits
|
|
after any changes. External edits change the wiki page
|
|
directly without using php or dokuwiki.
|
|
*/
|
|
global $conf;
|
|
global $lang;
|
|
global $REV;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
// prepare data for event
|
|
$svdta = array();
|
|
$svdta['id'] = $id;
|
|
$svdta['file'] = wikiFN($id);
|
|
$svdta['revertFrom'] = $REV;
|
|
$svdta['oldRevision'] = @filemtime($svdta['file']);
|
|
$svdta['newRevision'] = 0;
|
|
$svdta['newContent'] = $text;
|
|
$svdta['oldContent'] = rawWiki($id);
|
|
$svdta['summary'] = $summary;
|
|
$svdta['contentChanged'] = ($svdta['newContent'] != $svdta['oldContent']);
|
|
$svdta['changeInfo'] = '';
|
|
$svdta['changeType'] = DOKU_CHANGE_TYPE_EDIT;
|
|
$svdta['sizechange'] = null;
|
|
|
|
// select changelog line type
|
|
if($REV) {
|
|
$svdta['changeType'] = DOKU_CHANGE_TYPE_REVERT;
|
|
$svdta['changeInfo'] = $REV;
|
|
} else if(!file_exists($svdta['file'])) {
|
|
$svdta['changeType'] = DOKU_CHANGE_TYPE_CREATE;
|
|
} else if(trim($text) == '') {
|
|
// empty or whitespace only content deletes
|
|
$svdta['changeType'] = DOKU_CHANGE_TYPE_DELETE;
|
|
// autoset summary on deletion
|
|
if(blank($svdta['summary'])) {
|
|
$svdta['summary'] = $lang['deleted'];
|
|
}
|
|
} else if($minor && $conf['useacl'] && $INPUT->server->str('REMOTE_USER')) {
|
|
//minor edits only for logged in users
|
|
$svdta['changeType'] = DOKU_CHANGE_TYPE_MINOR_EDIT;
|
|
}
|
|
|
|
$event = new Doku_Event('COMMON_WIKIPAGE_SAVE', $svdta);
|
|
if(!$event->advise_before()) return;
|
|
|
|
// if the content has not been changed, no save happens (plugins may override this)
|
|
if(!$svdta['contentChanged']) return;
|
|
|
|
detectExternalEdit($id);
|
|
|
|
if(
|
|
$svdta['changeType'] == DOKU_CHANGE_TYPE_CREATE ||
|
|
($svdta['changeType'] == DOKU_CHANGE_TYPE_REVERT && !file_exists($svdta['file']))
|
|
) {
|
|
$filesize_old = 0;
|
|
} else {
|
|
$filesize_old = filesize($svdta['file']);
|
|
}
|
|
if($svdta['changeType'] == DOKU_CHANGE_TYPE_DELETE) {
|
|
// Send "update" event with empty data, so plugins can react to page deletion
|
|
$data = array(array($svdta['file'], '', false), getNS($id), noNS($id), false);
|
|
trigger_event('IO_WIKIPAGE_WRITE', $data);
|
|
// pre-save deleted revision
|
|
@touch($svdta['file']);
|
|
clearstatcache();
|
|
$svdta['newRevision'] = saveOldRevision($id);
|
|
// remove empty file
|
|
@unlink($svdta['file']);
|
|
$filesize_new = 0;
|
|
// don't remove old meta info as it should be saved, plugins can use IO_WIKIPAGE_WRITE for removing their metadata...
|
|
// purge non-persistant meta data
|
|
p_purge_metadata($id);
|
|
// remove empty namespaces
|
|
io_sweepNS($id, 'datadir');
|
|
io_sweepNS($id, 'mediadir');
|
|
} else {
|
|
// save file (namespace dir is created in io_writeWikiPage)
|
|
io_writeWikiPage($svdta['file'], $svdta['newContent'], $id);
|
|
// pre-save the revision, to keep the attic in sync
|
|
$svdta['newRevision'] = saveOldRevision($id);
|
|
$filesize_new = filesize($svdta['file']);
|
|
}
|
|
$svdta['sizechange'] = $filesize_new - $filesize_old;
|
|
|
|
$event->advise_after();
|
|
|
|
addLogEntry($svdta['newRevision'], $svdta['id'], $svdta['changeType'], $svdta['summary'], $svdta['changeInfo'], null, $svdta['sizechange']);
|
|
|
|
// send notify mails
|
|
notify($svdta['id'], 'admin', $svdta['oldRevision'], $svdta['summary'], $minor);
|
|
notify($svdta['id'], 'subscribers', $svdta['oldRevision'], $svdta['summary'], $minor);
|
|
|
|
// update the purgefile (timestamp of the last time anything within the wiki was changed)
|
|
io_saveFile($conf['cachedir'].'/purgefile', time());
|
|
|
|
// if useheading is enabled, purge the cache of all linking pages
|
|
if(useHeading('content')) {
|
|
$pages = ft_backlinks($id, true);
|
|
foreach($pages as $page) {
|
|
$cache = new cache_renderer($page, wikiFN($page), 'xhtml');
|
|
$cache->removeCache();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* moves the current version to the attic and returns its
|
|
* revision date
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page id
|
|
* @return int|string revision timestamp
|
|
*/
|
|
function saveOldRevision($id) {
|
|
$oldf = wikiFN($id);
|
|
if(!file_exists($oldf)) return '';
|
|
$date = filemtime($oldf);
|
|
$newf = wikiFN($id, $date);
|
|
io_writeWikiPage($newf, rawWiki($id), $id, $date);
|
|
return $date;
|
|
}
|
|
|
|
/**
|
|
* Sends a notify mail on page change or registration
|
|
*
|
|
* @param string $id The changed page
|
|
* @param string $who Who to notify (admin|subscribers|register)
|
|
* @param int|string $rev Old page revision
|
|
* @param string $summary What changed
|
|
* @param boolean $minor Is this a minor edit?
|
|
* @param string[] $replace Additional string substitutions, @KEY@ to be replaced by value
|
|
* @return bool
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*/
|
|
function notify($id, $who, $rev = '', $summary = '', $minor = false, $replace = array()) {
|
|
global $conf;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
// decide if there is something to do, eg. whom to mail
|
|
if($who == 'admin') {
|
|
if(empty($conf['notify'])) return false; //notify enabled?
|
|
$tpl = 'mailtext';
|
|
$to = $conf['notify'];
|
|
} elseif($who == 'subscribers') {
|
|
if(!actionOK('subscribe')) return false; //subscribers enabled?
|
|
if($conf['useacl'] && $INPUT->server->str('REMOTE_USER') && $minor) return false; //skip minors
|
|
$data = array('id' => $id, 'addresslist' => '', 'self' => false, 'replacements' => $replace);
|
|
trigger_event(
|
|
'COMMON_NOTIFY_ADDRESSLIST', $data,
|
|
array(new Subscription(), 'notifyaddresses')
|
|
);
|
|
$to = $data['addresslist'];
|
|
if(empty($to)) return false;
|
|
$tpl = 'subscr_single';
|
|
} else {
|
|
return false; //just to be safe
|
|
}
|
|
|
|
// prepare content
|
|
$subscription = new Subscription();
|
|
return $subscription->send_diff($to, $tpl, $id, $rev, $summary);
|
|
}
|
|
|
|
/**
|
|
* extracts the query from a search engine referrer
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @author Todd Augsburger <todd@rollerorgans.com>
|
|
*
|
|
* @return array|string
|
|
*/
|
|
function getGoogleQuery() {
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if(!$INPUT->server->has('HTTP_REFERER')) {
|
|
return '';
|
|
}
|
|
$url = parse_url($INPUT->server->str('HTTP_REFERER'));
|
|
|
|
// only handle common SEs
|
|
if(!preg_match('/(google|bing|yahoo|ask|duckduckgo|babylon|aol|yandex)/',$url['host'])) return '';
|
|
|
|
$query = array();
|
|
// temporary workaround against PHP bug #49733
|
|
// see http://bugs.php.net/bug.php?id=49733
|
|
if(UTF8_MBSTRING) $enc = mb_internal_encoding();
|
|
parse_str($url['query'], $query);
|
|
if(UTF8_MBSTRING) mb_internal_encoding($enc);
|
|
|
|
$q = '';
|
|
if(isset($query['q'])){
|
|
$q = $query['q'];
|
|
}elseif(isset($query['p'])){
|
|
$q = $query['p'];
|
|
}elseif(isset($query['query'])){
|
|
$q = $query['query'];
|
|
}
|
|
$q = trim($q);
|
|
|
|
if(!$q) return '';
|
|
$q = preg_split('/[\s\'"\\\\`()\]\[?:!\.{};,#+*<>\\/]+/', $q, -1, PREG_SPLIT_NO_EMPTY);
|
|
return $q;
|
|
}
|
|
|
|
/**
|
|
* Return the human readable size of a file
|
|
*
|
|
* @param int $size A file size
|
|
* @param int $dec A number of decimal places
|
|
* @return string human readable size
|
|
*
|
|
* @author Martin Benjamin <b.martin@cybernet.ch>
|
|
* @author Aidan Lister <aidan@php.net>
|
|
* @version 1.0.0
|
|
*/
|
|
function filesize_h($size, $dec = 1) {
|
|
$sizes = array('B', 'KB', 'MB', 'GB');
|
|
$count = count($sizes);
|
|
$i = 0;
|
|
|
|
while($size >= 1024 && ($i < $count - 1)) {
|
|
$size /= 1024;
|
|
$i++;
|
|
}
|
|
|
|
return round($size, $dec)."\xC2\xA0".$sizes[$i]; //non-breaking space
|
|
}
|
|
|
|
/**
|
|
* Return the given timestamp as human readable, fuzzy age
|
|
*
|
|
* @author Andreas Gohr <gohr@cosmocode.de>
|
|
*
|
|
* @param int $dt timestamp
|
|
* @return string
|
|
*/
|
|
function datetime_h($dt) {
|
|
global $lang;
|
|
|
|
$ago = time() - $dt;
|
|
if($ago > 24 * 60 * 60 * 30 * 12 * 2) {
|
|
return sprintf($lang['years'], round($ago / (24 * 60 * 60 * 30 * 12)));
|
|
}
|
|
if($ago > 24 * 60 * 60 * 30 * 2) {
|
|
return sprintf($lang['months'], round($ago / (24 * 60 * 60 * 30)));
|
|
}
|
|
if($ago > 24 * 60 * 60 * 7 * 2) {
|
|
return sprintf($lang['weeks'], round($ago / (24 * 60 * 60 * 7)));
|
|
}
|
|
if($ago > 24 * 60 * 60 * 2) {
|
|
return sprintf($lang['days'], round($ago / (24 * 60 * 60)));
|
|
}
|
|
if($ago > 60 * 60 * 2) {
|
|
return sprintf($lang['hours'], round($ago / (60 * 60)));
|
|
}
|
|
if($ago > 60 * 2) {
|
|
return sprintf($lang['minutes'], round($ago / (60)));
|
|
}
|
|
return sprintf($lang['seconds'], $ago);
|
|
}
|
|
|
|
/**
|
|
* Wraps around strftime but provides support for fuzzy dates
|
|
*
|
|
* The format default to $conf['dformat']. It is passed to
|
|
* strftime - %f can be used to get the value from datetime_h()
|
|
*
|
|
* @see datetime_h
|
|
* @author Andreas Gohr <gohr@cosmocode.de>
|
|
*
|
|
* @param int|null $dt timestamp when given, null will take current timestamp
|
|
* @param string $format empty default to $conf['dformat'], or provide format as recognized by strftime()
|
|
* @return string
|
|
*/
|
|
function dformat($dt = null, $format = '') {
|
|
global $conf;
|
|
|
|
if(is_null($dt)) $dt = time();
|
|
$dt = (int) $dt;
|
|
if(!$format) $format = $conf['dformat'];
|
|
|
|
$format = str_replace('%f', datetime_h($dt), $format);
|
|
return strftime($format, $dt);
|
|
}
|
|
|
|
/**
|
|
* Formats a timestamp as ISO 8601 date
|
|
*
|
|
* @author <ungu at terong dot com>
|
|
* @link http://php.net/manual/en/function.date.php#54072
|
|
*
|
|
* @param int $int_date current date in UNIX timestamp
|
|
* @return string
|
|
*/
|
|
function date_iso8601($int_date) {
|
|
$date_mod = date('Y-m-d\TH:i:s', $int_date);
|
|
$pre_timezone = date('O', $int_date);
|
|
$time_zone = substr($pre_timezone, 0, 3).":".substr($pre_timezone, 3, 2);
|
|
$date_mod .= $time_zone;
|
|
return $date_mod;
|
|
}
|
|
|
|
/**
|
|
* return an obfuscated email address in line with $conf['mailguard'] setting
|
|
*
|
|
* @author Harry Fuecks <hfuecks@gmail.com>
|
|
* @author Christopher Smith <chris@jalakai.co.uk>
|
|
*
|
|
* @param string $email email address
|
|
* @return string
|
|
*/
|
|
function obfuscate($email) {
|
|
global $conf;
|
|
|
|
switch($conf['mailguard']) {
|
|
case 'visible' :
|
|
$obfuscate = array('@' => ' [at] ', '.' => ' [dot] ', '-' => ' [dash] ');
|
|
return strtr($email, $obfuscate);
|
|
|
|
case 'hex' :
|
|
$encode = '';
|
|
$len = strlen($email);
|
|
for($x = 0; $x < $len; $x++) {
|
|
$encode .= '&#x'.bin2hex($email{$x}).';';
|
|
}
|
|
return $encode;
|
|
|
|
case 'none' :
|
|
default :
|
|
return $email;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes quoting backslashes
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $string
|
|
* @param string $char backslashed character
|
|
* @return string
|
|
*/
|
|
function unslash($string, $char = "'") {
|
|
return str_replace('\\'.$char, $char, $string);
|
|
}
|
|
|
|
/**
|
|
* Convert php.ini shorthands to byte
|
|
*
|
|
* @author <gilthans dot NO dot SPAM at gmail dot com>
|
|
* @link http://php.net/manual/en/ini.core.php#79564
|
|
*
|
|
* @param string $v shorthands
|
|
* @return int|string
|
|
*/
|
|
function php_to_byte($v) {
|
|
$l = substr($v, -1);
|
|
$ret = substr($v, 0, -1);
|
|
switch(strtoupper($l)) {
|
|
/** @noinspection PhpMissingBreakStatementInspection */
|
|
case 'P':
|
|
$ret *= 1024;
|
|
/** @noinspection PhpMissingBreakStatementInspection */
|
|
case 'T':
|
|
$ret *= 1024;
|
|
/** @noinspection PhpMissingBreakStatementInspection */
|
|
case 'G':
|
|
$ret *= 1024;
|
|
/** @noinspection PhpMissingBreakStatementInspection */
|
|
case 'M':
|
|
$ret *= 1024;
|
|
/** @noinspection PhpMissingBreakStatementInspection */
|
|
case 'K':
|
|
$ret *= 1024;
|
|
break;
|
|
default;
|
|
$ret *= 10;
|
|
break;
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* Wrapper around preg_quote adding the default delimiter
|
|
*
|
|
* @param string $string
|
|
* @return string
|
|
*/
|
|
function preg_quote_cb($string) {
|
|
return preg_quote($string, '/');
|
|
}
|
|
|
|
/**
|
|
* Shorten a given string by removing data from the middle
|
|
*
|
|
* You can give the string in two parts, the first part $keep
|
|
* will never be shortened. The second part $short will be cut
|
|
* in the middle to shorten but only if at least $min chars are
|
|
* left to display it. Otherwise it will be left off.
|
|
*
|
|
* @param string $keep the part to keep
|
|
* @param string $short the part to shorten
|
|
* @param int $max maximum chars you want for the whole string
|
|
* @param int $min minimum number of chars to have left for middle shortening
|
|
* @param string $char the shortening character to use
|
|
* @return string
|
|
*/
|
|
function shorten($keep, $short, $max, $min = 9, $char = '…') {
|
|
$max = $max - utf8_strlen($keep);
|
|
if($max < $min) return $keep;
|
|
$len = utf8_strlen($short);
|
|
if($len <= $max) return $keep.$short;
|
|
$half = floor($max / 2);
|
|
return $keep.utf8_substr($short, 0, $half - 1).$char.utf8_substr($short, $len - $half);
|
|
}
|
|
|
|
/**
|
|
* Return the users real name or e-mail address for use
|
|
* in page footer and recent changes pages
|
|
*
|
|
* @param string|null $username or null when currently logged-in user should be used
|
|
* @param bool $textonly true returns only plain text, true allows returning html
|
|
* @return string html or plain text(not escaped) of formatted user name
|
|
*
|
|
* @author Andy Webber <dokuwiki AT andywebber DOT com>
|
|
*/
|
|
function editorinfo($username, $textonly = false) {
|
|
return userlink($username, $textonly);
|
|
}
|
|
|
|
/**
|
|
* Returns users realname w/o link
|
|
*
|
|
* @param string|null $username or null when currently logged-in user should be used
|
|
* @param bool $textonly true returns only plain text, true allows returning html
|
|
* @return string html or plain text(not escaped) of formatted user name
|
|
*
|
|
* @triggers COMMON_USER_LINK
|
|
*/
|
|
function userlink($username = null, $textonly = false) {
|
|
global $conf, $INFO;
|
|
/** @var DokuWiki_Auth_Plugin $auth */
|
|
global $auth;
|
|
/** @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
// prepare initial event data
|
|
$data = array(
|
|
'username' => $username, // the unique user name
|
|
'name' => '',
|
|
'link' => array( //setting 'link' to false disables linking
|
|
'target' => '',
|
|
'pre' => '',
|
|
'suf' => '',
|
|
'style' => '',
|
|
'more' => '',
|
|
'url' => '',
|
|
'title' => '',
|
|
'class' => ''
|
|
),
|
|
'userlink' => '', // formatted user name as will be returned
|
|
'textonly' => $textonly
|
|
);
|
|
if($username === null) {
|
|
$data['username'] = $username = $INPUT->server->str('REMOTE_USER');
|
|
if($textonly){
|
|
$data['name'] = $INFO['userinfo']['name']. ' (' . $INPUT->server->str('REMOTE_USER') . ')';
|
|
}else {
|
|
$data['name'] = '<bdi>' . hsc($INFO['userinfo']['name']) . '</bdi> (<bdi>' . hsc($INPUT->server->str('REMOTE_USER')) . '</bdi>)';
|
|
}
|
|
}
|
|
|
|
$evt = new Doku_Event('COMMON_USER_LINK', $data);
|
|
if($evt->advise_before(true)) {
|
|
if(empty($data['name'])) {
|
|
if($auth) $info = $auth->getUserData($username);
|
|
if($conf['showuseras'] != 'loginname' && isset($info) && $info) {
|
|
switch($conf['showuseras']) {
|
|
case 'username':
|
|
case 'username_link':
|
|
$data['name'] = $textonly ? $info['name'] : hsc($info['name']);
|
|
break;
|
|
case 'email':
|
|
case 'email_link':
|
|
$data['name'] = obfuscate($info['mail']);
|
|
break;
|
|
}
|
|
} else {
|
|
$data['name'] = $textonly ? $data['username'] : hsc($data['username']);
|
|
}
|
|
}
|
|
|
|
/** @var Doku_Renderer_xhtml $xhtml_renderer */
|
|
static $xhtml_renderer = null;
|
|
|
|
if(!$data['textonly'] && empty($data['link']['url'])) {
|
|
|
|
if(in_array($conf['showuseras'], array('email_link', 'username_link'))) {
|
|
if(!isset($info)) {
|
|
if($auth) $info = $auth->getUserData($username);
|
|
}
|
|
if(isset($info) && $info) {
|
|
if($conf['showuseras'] == 'email_link') {
|
|
$data['link']['url'] = 'mailto:' . obfuscate($info['mail']);
|
|
} else {
|
|
if(is_null($xhtml_renderer)) {
|
|
$xhtml_renderer = p_get_renderer('xhtml');
|
|
}
|
|
if(empty($xhtml_renderer->interwiki)) {
|
|
$xhtml_renderer->interwiki = getInterwiki();
|
|
}
|
|
$shortcut = 'user';
|
|
$exists = null;
|
|
$data['link']['url'] = $xhtml_renderer->_resolveInterWiki($shortcut, $username, $exists);
|
|
$data['link']['class'] .= ' interwiki iw_user';
|
|
if($exists !== null) {
|
|
if($exists) {
|
|
$data['link']['class'] .= ' wikilink1';
|
|
} else {
|
|
$data['link']['class'] .= ' wikilink2';
|
|
$data['link']['rel'] = 'nofollow';
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$data['textonly'] = true;
|
|
}
|
|
|
|
} else {
|
|
$data['textonly'] = true;
|
|
}
|
|
}
|
|
|
|
if($data['textonly']) {
|
|
$data['userlink'] = $data['name'];
|
|
} else {
|
|
$data['link']['name'] = $data['name'];
|
|
if(is_null($xhtml_renderer)) {
|
|
$xhtml_renderer = p_get_renderer('xhtml');
|
|
}
|
|
$data['userlink'] = $xhtml_renderer->_formatLink($data['link']);
|
|
}
|
|
}
|
|
$evt->advise_after();
|
|
unset($evt);
|
|
|
|
return $data['userlink'];
|
|
}
|
|
|
|
/**
|
|
* Returns the path to a image file for the currently chosen license.
|
|
* When no image exists, returns an empty string
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $type - type of image 'badge' or 'button'
|
|
* @return string
|
|
*/
|
|
function license_img($type) {
|
|
global $license;
|
|
global $conf;
|
|
if(!$conf['license']) return '';
|
|
if(!is_array($license[$conf['license']])) return '';
|
|
$try = array();
|
|
$try[] = 'lib/images/license/'.$type.'/'.$conf['license'].'.png';
|
|
$try[] = 'lib/images/license/'.$type.'/'.$conf['license'].'.gif';
|
|
if(substr($conf['license'], 0, 3) == 'cc-') {
|
|
$try[] = 'lib/images/license/'.$type.'/cc.png';
|
|
}
|
|
foreach($try as $src) {
|
|
if(file_exists(DOKU_INC.$src)) return $src;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Checks if the given amount of memory is available
|
|
*
|
|
* If the memory_get_usage() function is not available the
|
|
* function just assumes $bytes of already allocated memory
|
|
*
|
|
* @author Filip Oscadal <webmaster@illusionsoftworks.cz>
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param int $mem Size of memory you want to allocate in bytes
|
|
* @param int $bytes already allocated memory (see above)
|
|
* @return bool
|
|
*/
|
|
function is_mem_available($mem, $bytes = 1048576) {
|
|
$limit = trim(ini_get('memory_limit'));
|
|
if(empty($limit)) return true; // no limit set!
|
|
|
|
// parse limit to bytes
|
|
$limit = php_to_byte($limit);
|
|
|
|
// get used memory if possible
|
|
if(function_exists('memory_get_usage')) {
|
|
$used = memory_get_usage();
|
|
} else {
|
|
$used = $bytes;
|
|
}
|
|
|
|
if($used + $mem > $limit) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send a HTTP redirect to the browser
|
|
*
|
|
* Works arround Microsoft IIS cookie sending bug. Exits the script.
|
|
*
|
|
* @link http://support.microsoft.com/kb/q176113/
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $url url being directed to
|
|
*/
|
|
function send_redirect($url) {
|
|
$url = stripctl($url); // defend against HTTP Response Splitting
|
|
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
//are there any undisplayed messages? keep them in session for display
|
|
global $MSG;
|
|
if(isset($MSG) && count($MSG) && !defined('NOSESSION')) {
|
|
//reopen session, store data and close session again
|
|
@session_start();
|
|
$_SESSION[DOKU_COOKIE]['msg'] = $MSG;
|
|
}
|
|
|
|
// always close the session
|
|
session_write_close();
|
|
|
|
// check if running on IIS < 6 with CGI-PHP
|
|
if($INPUT->server->has('SERVER_SOFTWARE') && $INPUT->server->has('GATEWAY_INTERFACE') &&
|
|
(strpos($INPUT->server->str('GATEWAY_INTERFACE'), 'CGI') !== false) &&
|
|
(preg_match('|^Microsoft-IIS/(\d)\.\d$|', trim($INPUT->server->str('SERVER_SOFTWARE')), $matches)) &&
|
|
$matches[1] < 6
|
|
) {
|
|
header('Refresh: 0;url='.$url);
|
|
} else {
|
|
header('Location: '.$url);
|
|
}
|
|
|
|
if(defined('DOKU_UNITTEST')) return; // no exits during unit tests
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* Validate a value using a set of valid values
|
|
*
|
|
* This function checks whether a specified value is set and in the array
|
|
* $valid_values. If not, the function returns a default value or, if no
|
|
* default is specified, throws an exception.
|
|
*
|
|
* @param string $param The name of the parameter
|
|
* @param array $valid_values A set of valid values; Optionally a default may
|
|
* be marked by the key “default”.
|
|
* @param array $array The array containing the value (typically $_POST
|
|
* or $_GET)
|
|
* @param string $exc The text of the raised exception
|
|
*
|
|
* @throws Exception
|
|
* @return mixed
|
|
* @author Adrian Lang <lang@cosmocode.de>
|
|
*/
|
|
function valid_input_set($param, $valid_values, $array, $exc = '') {
|
|
if(isset($array[$param]) && in_array($array[$param], $valid_values)) {
|
|
return $array[$param];
|
|
} elseif(isset($valid_values['default'])) {
|
|
return $valid_values['default'];
|
|
} else {
|
|
throw new Exception($exc);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Read a preference from the DokuWiki cookie
|
|
* (remembering both keys & values are urlencoded)
|
|
*
|
|
* @param string $pref preference key
|
|
* @param mixed $default value returned when preference not found
|
|
* @return string preference value
|
|
*/
|
|
function get_doku_pref($pref, $default) {
|
|
$enc_pref = urlencode($pref);
|
|
if(isset($_COOKIE['DOKU_PREFS']) && strpos($_COOKIE['DOKU_PREFS'], $enc_pref) !== false) {
|
|
$parts = explode('#', $_COOKIE['DOKU_PREFS']);
|
|
$cnt = count($parts);
|
|
for($i = 0; $i < $cnt; $i += 2) {
|
|
if($parts[$i] == $enc_pref) {
|
|
return urldecode($parts[$i + 1]);
|
|
}
|
|
}
|
|
}
|
|
return $default;
|
|
}
|
|
|
|
/**
|
|
* Add a preference to the DokuWiki cookie
|
|
* (remembering $_COOKIE['DOKU_PREFS'] is urlencoded)
|
|
* Remove it by setting $val to false
|
|
*
|
|
* @param string $pref preference key
|
|
* @param string $val preference value
|
|
*/
|
|
function set_doku_pref($pref, $val) {
|
|
global $conf;
|
|
$orig = get_doku_pref($pref, false);
|
|
$cookieVal = '';
|
|
|
|
if($orig && ($orig != $val)) {
|
|
$parts = explode('#', $_COOKIE['DOKU_PREFS']);
|
|
$cnt = count($parts);
|
|
// urlencode $pref for the comparison
|
|
$enc_pref = rawurlencode($pref);
|
|
for($i = 0; $i < $cnt; $i += 2) {
|
|
if($parts[$i] == $enc_pref) {
|
|
if ($val !== false) {
|
|
$parts[$i + 1] = rawurlencode($val);
|
|
} else {
|
|
unset($parts[$i]);
|
|
unset($parts[$i + 1]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
$cookieVal = implode('#', $parts);
|
|
} else if (!$orig && $val !== false) {
|
|
$cookieVal = ($_COOKIE['DOKU_PREFS'] ? $_COOKIE['DOKU_PREFS'].'#' : '').rawurlencode($pref).'#'.rawurlencode($val);
|
|
}
|
|
|
|
if (!empty($cookieVal)) {
|
|
$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
|
|
setcookie('DOKU_PREFS', $cookieVal, time()+365*24*3600, $cookieDir, '', ($conf['securecookie'] && is_ssl()));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Strips source mapping declarations from given text #601
|
|
*
|
|
* @param string &$text reference to the CSS or JavaScript code to clean
|
|
*/
|
|
function stripsourcemaps(&$text){
|
|
$text = preg_replace('/^(\/\/|\/\*)[@#]\s+sourceMappingURL=.*?(\*\/)?$/im', '\\1\\2', $text);
|
|
}
|
|
|
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/**
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* Returns the contents of a given SVG file for embedding
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*
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* Inlining SVGs saves on HTTP requests and more importantly allows for styling them through
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* CSS. However it should used with small SVGs only. The $maxsize setting ensures only small
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* files are embedded.
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*
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* This strips unneeded headers, comments and newline. The result is not a vaild standalone SVG!
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*
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* @param string $file full path to the SVG file
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* @param int $maxsize maximum allowed size for the SVG to be embedded
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* @return string|false the SVG content, false if the file couldn't be loaded
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*/
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function inlineSVG($file, $maxsize = 2048) {
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$file = trim($file);
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if($file === '') return false;
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if(!file_exists($file)) return false;
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if(filesize($file) > $maxsize) return false;
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if(!is_readable($file)) return false;
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$content = file_get_contents($file);
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$content = preg_replace('/<!--.*?(-->)/s','', $content); // comments
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$content = preg_replace('/<\?xml .*?\?>/i', '', $content); // xml header
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$content = preg_replace('/<!DOCTYPE .*?>/i', '', $content); // doc type
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$content = preg_replace('/>\s+</s', '><', $content); // newlines between tags
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$content = trim($content);
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if(substr($content, 0, 5) !== '<svg ') return false;
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return $content;
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}
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//Setup VIM: ex: et ts=2 :
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