Viewing file:  ajax.php (8.28 KB) -rw-rw-r--
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<?php
/**
* DokuWiki AJAX call handler
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Pavel Vitis <pavel.vitis@seznam.cz>
*/
//fix for Opera XMLHttpRequests
if(!count($_POST) && $HTTP_RAW_POST_DATA){
parse_str($HTTP_RAW_POST_DATA, $_POST);
}
if(!defined('DOKU_INC'))
define('DOKU_INC',realpath(dirname(__FILE__).'/../../../').'/');
require_once(DOKU_INC.'inc/init.php');
require_once(DOKU_INC.'inc/common.php');
require_once(DOKU_INC.'inc/auth.php');
require_once(DOKU_INC.'inc/html.php');
define(SHOW_GRAVATAR, false);
define(BASE_URL, preg_replace('!(.+)(/.+){3}!', '\\1/', DOKU_BASE));
session_write_close();
header('Content-Type: text/html; charset=UTF-8');
//call the requested function
$call = 'ajax_'.$_REQUEST['call'];
if ($call == '') {
$call = 'ajax_'.$_REQUEST['call'];
}
if(function_exists($call)){
$call();
}else{
print "The called function '".htmlspecialchars($call)."' does not exist!";
}
function _getChatHtml($pageFN, $ltime = 0, $mtime = 0) {
if (!@file_exists($pageFN)) {
return;
print "1,";
}
// echo '<a style="text-decoration:none;" href="" title="'.$ltime.' / '.$mtime.'"> </a>';
$file = trim(io_readFile($pageFN));
if ($file == ' ') {
$file = '';
}
$html = "";
// $html .= "1,";
$lines = explode("\n----\n", $file."\n");
$patterns = array(
'!(\[\[((http|https|ftp)://[^\]\|]+)\]\])!',
'!(\[\[((http|https|ftp)://[^\]\|]+)\|([^\]]+)\]\])!',
'!(\[\[([^\]\|]+)\|([^\]]+)\]\])!',
'!(\[\[([^\]\|]+)\]\])!',
'!(\s)((http|https|ftp)://[^\s\n\r]+)!',
'!\*{2}([^\*]+)\*{2}!',
'!(\s)/{2}([^/]+)/{2}(\s)!',
'!(\s)_{2}([^_]+)_{2}(\s)!'
);
$replaces = array(
'<a href="\\2" class="urlextern" target="_blank">\\2</a>',
'<a href="\\2" class="urlextern" target="_blank">\\4</a>',
'<a href="\\2" class="urlintern">\\3</a>',
'<a href="\\2" class="urlintern">\\2</a>',
'\\1<a href="\\2" class="urlextern" target="_blank">\\2</a>',
'<strong>\\1</strong>',
'\\1<em>\\2</em>\\3',
'\\1<u>\\2</u>\\3'
);
$smileys = getSmileys();
foreach ($smileys as $key=>$value) {
$key_escaped = preg_replace(
array("/\\\\/","/\*/",'/\&/','/\(/','/\)/','/\[/','/\]/','/\|/','/\=/','!/!','/\?/'),
array('\\\\\\','\\*','\\&','\\(','\\)','\\[','\\]','\\|','\\=','\\/','\\?'),
$key);
// echo $key_escaped.'<br />';
// echo $value;
$patterns[] = '@'.$key_escaped.'@';
$files = preg_split('/\|/', $value);
if (count($files) > 1) {
$file = $files[mt_rand(0,count($files)-1)];
}
else {
$file = $files[0];
}
$replaces[] = '<img src="'.BASE_URL.'lib/images/smileys/'.$file.'" '.
'class="smiley" alt="'.str_replace('"',"'",$key).'" title="'.str_replace('"',"'",$key).'" />';
}
// print implode('|', array_keys($smileys));
if (true == SHOW_GRAVATAR) {
@require_once(DOKU_INC.'lib/plugins/gravatar/syntax.php');
if (true == SHOW_GRAVATAR && class_exists('syntax_plugin_gravatar')) {
$gravatar = true;
}
}
$color = count($lines) % 2 == 0 ? 0 : 1;
for ($i = 0; $i < count($lines); $i++) {
if (trim($lines[$i]) == '') {
continue;
}
preg_match('/\(([^\)]+)\)[\s]+([^:]+):[\s]+(.+)/', $lines[$i], $parts);
if ($parts[1]*1 != 0 && $parts[1]*1 <= $ltime) {
// print $ltime.'<br />';
// print $parts[1].'<br />';
break;
}
$uinfo = explode('|', $parts[2]);
$html .= '<div class="chat-line ';
$html .= ' chat-line-'.(0 == ($color++) % 2 ? 'even' : 'odd');
// if ($i == 0 && $ltime < $mtime) {
// $html .= ' chat-line-last" id="chat-last-message"';
// }
// else {
$html .= '"';
// }
$html .= '>';
if ($gravatar) {
if (!empty($uinfo[1])) {
$html .= syntax_plugin_gravatar::_renderAvatar(
$uinfo[1],
'left',
40,
'',
DOKU_INC,
BASE_URL);
}
}
$lang = $_REQUEST['HTTP_ACCEPT_LANGUAGE'];
if (date('Yz',time()) == date('Yz',$parts[1])) {
$datetime = date('H:i:s',$parts[1]);
}
else {
if ($lang) {
}
$datetime = date('Y/m/d, H:i:s',$parts[1]);
}
$html .= '<strong>'.(!empty($uinfo[2]) ? $uinfo[2] : $uinfo[0]).'</strong> ('.$datetime.'): <br /><blockquote>';
$html .= preg_replace($patterns, $replaces, ' '.$parts[3].' ');
if ($i+1 < count($lines)) {
$html .= '<br />';//'<hr noshade="noshade" size="1" />';
}
else {
$html .= '<br />';
}
$html .= '</blockquote></div>';
}
return $html;
}
/**
* Get number of new comments
*
* @author Pavel Vitis <pavel.vitis@seznam.cz>
*/
function ajax_check() {
global $conf;
global $lang;
$pageId = cleanID($_POST['pageId']);
if(empty($pageId)) {
return;
}
$ltime = (int)$_POST['time'];
$pageFN = wikiFN($pageId);
$mtime = @filemtime($pageFN);
if ($ltime == 0 || $mtime > $ltime) {
echo "1";
}
}
/**
* Get new comments
*
* @author Pavel Vitis <pavel.vitis@seznam.cz>
*/
function ajax_checkAndGet() {
global $conf;
global $lang;
$pageId = cleanID($_POST['pageId']);
if(empty($pageId)) {
return;
}
if ($conf['useacl'] && auth_quickAclCheck($pageId) < AUTH_READ) {
print "<!--AJAXCHAT_MTIME:0-->\n";
print "<p><em>Not sufficient user rights. Please re-login to see the messages.<br />".
"If that does not work for you from some reason, clear your browser cookies and then login again:</em></p>".
"<p><strong>IE:</strong> Tools->Internet options...->Delete cookies...<br />".
"<strong>Mozilla/Firefox:</strong> Tools->Options...->Privacy->Cookies->Clear cookies now...</p>";
return;
}
$pageFN = wikiFN($pageId);
$mtime = @filemtime($pageFN);
$ltime = (int)$_POST['time'];
// echo $time ." - " . $pageId;
// echo "<BR>$mtime";
if ($ltime == 0 || $mtime > $ltime) {
print "<!--AJAXCHAT_MTIME:$mtime-->\n";
print _getChatHtml($pageFN, $ltime, $mtime);
print ' ';
}
}
function ajax_send(){
global $conf;
global $auth;
global $lang;
// check pageid validity
$pageId = cleanID($_POST['pageId']);
if(empty($pageId)) {
return;
}
$ltime = (int)$_POST['time'];
if ($ltime > 0) {
while (time() - $ltime < 1) {
sleep(5);
}
}
// modified now
$mtime = time();
// set modified header
$html = "<!--AJAXCHAT_MTIME:$mtime-->\n";
// check user rights
if ($conf['useacl'] && auth_quickAclCheck($pageId) < AUTH_EDIT) {
// and append warning if not possible to send messages
$html .= "<p><em>Insufficient user rights. Please re-login to be able to send the messages.</em></p>";
}
else {
// $ltime = (int)$_POST['time'];
$user = cleanUser($_POST['user']);
$message = cleanMessage($_POST['msg']);
while (checklock($pageId)) {
sleep(50);
}
lock($pageId);
$pageFN = wikiFN($pageId);
$file = trim(@io_readFile($pageFN));
if ($file == ' ') {
$file = '';
}
$udata = $auth->getUserData($user);
$line = "(".time().") ".$user;
if (!empty($udata['mail'])) {
$line .= "|".$udata['mail'];
}
if (!empty($udata['name'])) {
$line .= "|".$udata['name'];
}
$line .= ": ".htmlspecialchars($message);
$file = $line."\n----\n".$file."\n";
saveWikiText($pageId, $file, "Message added", true);
unlock($pageId);
}
print $html . _getChatHtml($pageFN, $ltime, $mtime);
}
function ajax_clear(){
global $conf;
global $lang;
$ltime = $_POST['time'];
$ltime = (int)$ltime;
$pageId = $_POST['pageId'];
$user = cleanUser($_POST['user']);
$message = $_POST['msg'];
$pageFN = wikiFN($pageId);
if (!@file_exists($pageFN)) {
return;
}
while (checklock($pageId)) {
usleep(50);
}
lock($pageId);
saveWikiText($pageId, ' ', "Messages cleared", true);
// @touch($pageFN);
unlock($pageId);
print ' ';
}
function cleanUser($user) {
global $conf;
$user = preg_replace('/[^ .,a-zA-Z0-9_\-]/i', '', $user);
$user = substr($user, 0, 40);
return $user;
}
function cleanMessage($msg) {
global $conf;
$maxmsgsize = (int) $conf['chat']['max-message-size'];
if ($maxmsgsize <= 0) {
$maxmsgsize = 1024;
}
if ($maxmsgsize > 4*1024) {
$maxmsgsize = 4*1024;
}
if (strlen($msg) > $maxmsgsize) {
$msg = substr($msg, 0, $maxmsgsize);
}
return $msg;
}
//Setup VIM: ex: et ts=2 enc=utf-8 :
?>
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