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268 lines
9.9 KiB
268 lines
9.9 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Responses to AJAX calls
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*/
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// Language files that need to be included.
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$language_file = array('admin');
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require_once '../global.inc.php';
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require_once api_get_path(SYS_CODE_PATH).'admin/statistics/statistics.lib.php';
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api_protect_admin_script();
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$action = isset($_REQUEST['a']) ? $_REQUEST['a'] : null;
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switch ($action) {
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case 'update_changeable_setting':
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$url_id = api_get_current_access_url_id();
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if (api_is_global_platform_admin() && $url_id == 1) {
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if (isset($_GET['id']) && !empty($_GET['id'])) {
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$params = array('variable = ? ' => array($_GET['id']));
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$data = api_get_settings_params($params);
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if (!empty($data)) {
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foreach ($data as $item) {
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$params = array('id' =>$item['id'], 'access_url_changeable' => $_GET['changeable']);
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api_set_setting_simple($params);
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}
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}
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echo '1';
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}
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}
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break;
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case 'version':
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echo version_check();
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break;
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case 'save_block_extra':
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$content = isset($_POST['content']) ? Security::remove_XSS($_POST['content']) : null;
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$blockName = isset($_POST['block']) ? Security::remove_XSS($_POST['block']) : null;
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if (empty($blockName)) {
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die;
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}
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if (api_is_multiple_url_enabled()) {
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$accessUrlId = api_get_current_access_url_id();
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if ($accessUrlId == -1) {
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die;
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}
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$urlInfo = api_get_access_url($accessUrlId);
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$url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $urlInfo['url']));
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$cleanUrl = str_replace('/', '-', $url);
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$newUrlDir = api_get_path(SYS_PATH) . "home/$cleanUrl/admin/";
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} else {
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$newUrlDir = api_get_path(SYS_PATH) . "home/admin/";
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}
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if (!is_dir($newUrlDir)) {
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mkdir($newUrlDir, api_get_permissions_for_new_directories(), true);
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}
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if (!is_writable($newUrlDir)) {
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die;
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}
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$fullFilePath = "{$newUrlDir}{$blockName}_extra.html";
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file_put_contents($fullFilePath, $content);
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break;
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case 'get_extra_content':
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$blockName = isset($_POST['block']) ? Security::remove_XSS($_POST['block']) : null;
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if (empty($blockName)) {
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die;
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}
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if (api_is_multiple_url_enabled()) {
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$accessUrlId = api_get_current_access_url_id();
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if ($accessUrlId == -1) {
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die;
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}
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$urlInfo = api_get_access_url($accessUrlId);
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$url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $urlInfo['url']));
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$cleanUrl = str_replace('/', '-', $url);
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$newUrlDir = api_get_path(SYS_PATH) . "home/$cleanUrl/admin/";
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} else {
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$newUrlDir = api_get_path(SYS_PATH) . "home/admin/";
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}
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if (!Security::check_abs_path("{$newUrlDir}{$blockName}_extra.html", $newUrlDir)) {
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die;
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}
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if (!file_exists("{$newUrlDir}{$blockName}_extra.html")) {
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die;
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}
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echo file_get_contents("{$newUrlDir}{$blockName}_extra.html");
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break;
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}
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/**
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* Displays either the text for the registration or the message that the installation is (not) up to date
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*
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* @return string html code
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version august 2006
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* @todo have a 6 monthly re-registration
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*/
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function version_check()
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{
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$tbl_settings = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
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$sql = 'SELECT selected_value FROM '.$tbl_settings.' WHERE variable = "registered" ';
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$result = Database::query($sql);
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$row = Database::fetch_array($result, 'ASSOC');
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// The site has not been registered yet.
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$return = '';
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if ($row['selected_value'] == 'false') {
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$return .= get_lang('VersionCheckExplanation');
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$return .= '<form class="well" action="'.api_get_path(WEB_CODE_PATH).'admin/index.php" id="VersionCheck" name="VersionCheck" method="post">';
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$return .= '<label class="checkbox"><input type="checkbox" name="donotlistcampus" value="1" id="checkbox" />'.get_lang('HideCampusFromPublicPlatformsList');
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$return .= '</label><button type="submit" class="btn btn-primary" name="Register" value="'.get_lang('EnableVersionCheck').'" id="register" >'.get_lang('EnableVersionCheck').'</button>';
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$return .= '</form>';
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check_system_version();
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} else {
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// site not registered. Call anyway
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$return .= check_system_version();
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}
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return $return;
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}
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/**
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* Check if the current installation is up to date
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* The code is borrowed from phpBB and slighlty modified
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* @author The phpBB Group <support@phpbb.com> (the code)
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University (the modifications)
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* @author Yannick Warnier <ywarnier@beeznest.org> for the move to HTTP request
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* @copyright (C) 2001 The phpBB Group
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* @return string language string with some layout (color)
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*/
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function check_system_version()
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{
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global $_configuration;
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$system_version = trim($_configuration['system_version']); // the chamilo version of your installation
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if (ini_get('allow_url_fopen') == 1) {
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// The number of courses
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$number_of_courses = Statistics::count_courses();
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// The number of users
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$number_of_users = Statistics::count_users();
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$number_of_active_users = Statistics::count_users(null, null, null, true);
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// The number of sessions
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$number_of_sessions = Statistics::count_sessions();
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$data = array(
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'url' => api_get_path(WEB_PATH),
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'campus' => api_get_setting('siteName'),
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'contact' => api_get_setting('emailAdministrator'),
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'version' => $system_version,
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'numberofcourses' => $number_of_courses,
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'numberofusers' => $number_of_users,
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'numberofactiveusers' => $number_of_active_users,
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'numberofsessions' => $number_of_sessions,
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//The donotlistcampus setting recovery should be improved to make
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// it true by default - this does not affect numbers counting
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'donotlistcampus' => api_get_setting('donotlistcampus'),
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'organisation' => api_get_setting('Institution'),
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'language' => api_get_setting('platformLanguage'),
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'adminname' => api_get_setting('administratorName').' '.api_get_setting('administratorSurname'),
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);
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$version = null;
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// version.php has been updated to include the version in an HTTP header
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// called "X-Chamilo-Version", so that we don't have to worry about
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// issues with the content not being returned by fread for some reason
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$res = _http_request('version.chamilo.org', 80, '/version.php', $data, 5, null, true);
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$lines = preg_split('/\r\n/', $res);
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foreach ($lines as $line) {
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$elements = preg_split('/:/', $line);
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// extract the X-Chamilo-Version header from the version.php response
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if (strcmp(trim($elements[0]), 'X-Chamilo-Version') === 0) {
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$version = trim($elements[1]);
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}
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}
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if (substr($res, 0, 5) != 'Error') {
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if (empty($version)) {
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$version_info = $res;
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} else {
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$version_info = $version;
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}
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if ($system_version != $version_info) {
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$output = '<br /><span style="color:red">' . get_lang('YourVersionNotUpToDate') . '. '.get_lang('LatestVersionIs').' <b>Chamilo '.$version_info.'</b>. '.get_lang('YourVersionIs').' <b>Chamilo '.$system_version. '</b>. '.str_replace('http://www.chamilo.org', '<a href="http://www.chamilo.org">http://www.chamilo.org</a>', get_lang('PleaseVisitOurWebsite')).'</span>';
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} else {
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$output = '<br /><span style="color:green">'.get_lang('VersionUpToDate').': Chamilo '.$version_info.'</span>';
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}
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} else {
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$output = '<span style="color:red">' . get_lang('ImpossibleToContactVersionServerPleaseTryAgain') . '</span>';
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}
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} else {
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$output = '<span style="color:red">' . get_lang('AllowurlfopenIsSetToOff') . '</span>';
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}
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return $output;
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}
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/**
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* Function to make an HTTP request through fsockopen (specialised for GET)
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* Derived from Jeremy Saintot: http://www.php.net/manual/en/function.fsockopen.php#101872
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* @param string IP or hostname
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* @param int Target port
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* @param string URI (defaults to '/')
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* @param array GET data
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* @param float Timeout
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* @param bool Include HTTP Request headers?
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* @param bool Include HTTP Response headers?
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*/
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function _http_request($ip, $port = 80, $uri = '/', $getdata = array(), $timeout = 5, $req_hdr = false, $res_hdr = false)
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{
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$verb = 'GET';
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$ret = '';
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$getdata_str = count($getdata) ? '?' : '';
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foreach ($getdata as $k => $v) {
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$getdata_str .= urlencode($k) .'='. urlencode($v) . '&';
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}
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$crlf = "\r\n";
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$req = $verb .' '. $uri . $getdata_str .' HTTP/1.1' . $crlf;
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$req .= 'Host: '. $ip . $crlf;
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$req .= 'User-Agent: Mozilla/5.0 Firefox/3.6.12' . $crlf;
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$req .= 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' . $crlf;
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$req .= 'Accept-Language: en-us,en;q=0.5' . $crlf;
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$req .= 'Accept-Encoding: deflate' . $crlf;
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$req .= 'Accept-Charset: utf-8;q=0.7,*;q=0.7' . $crlf;
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$req .= $crlf;
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if ($req_hdr) {
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$ret .= $req;
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}
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if (($fp = @fsockopen($ip, $port, $errno, $errstr, $timeout)) == false) {
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return "Error $errno: $errstr\n";
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}
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stream_set_timeout($fp, $timeout);
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$r = fwrite($fp, $req);
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$line = @fread($fp, 512);
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$ret .= $line;
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fclose($fp);
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if (!$res_hdr) {
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$ret = substr($ret, strpos($ret, "\r\n\r\n") + 4);
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}
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return trim($ret);
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}
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