Toolbox::getURLContent PHP Méthode

    static function getURLContent($url, &$msgerr = NULL, $rec = 0)
    {
        global $CFG_GLPI;
        $content = "";
        $taburl = parse_url($url);
        // Connection directe
        if (empty($CFG_GLPI["proxy_name"])) {
            $hostscheme = '';
            $defaultport = 80;
            // Manage standard HTTPS port : scheme detection or port 443
            if (isset($taburl["scheme"]) && $taburl["scheme"] == 'https' || isset($taburl["port"]) && $taburl["port"] == '443') {
                $hostscheme = 'ssl://';
                $defaultport = 443;
            }
            if ($fp = @fsockopen($hostscheme . $taburl["host"], isset($taburl["port"]) ? $taburl["port"] : $defaultport, $errno, $errstr, 1)) {
                if (isset($taburl["path"]) && $taburl["path"] != '/') {
                    $toget = $taburl["path"];
                    if (isset($taburl["query"])) {
                        $toget .= '?' . $taburl["query"];
                    }
                    // retrieve path + args
                    $request = "GET {$toget} HTTP/1.1\r\n";
                } else {
                    $request = "GET / HTTP/1.1\r\n";
                }
                $request .= "Host: " . $taburl["host"] . "\r\n";
            } else {
                if (isset($msgerr)) {
                    //TRANS: %s is the error string
                    $msgerr = sprintf(__('Connection failed. If you use a proxy, please configure it. (%s)'), $errstr);
                }
                return "";
            }
        } else {
            // Connection using proxy
            $fp = fsockopen($CFG_GLPI["proxy_name"], $CFG_GLPI["proxy_port"], $errno, $errstr, 1);
            if ($fp) {
                $request = "GET {$url} HTTP/1.1\r\n";
                $request .= "Host: " . $taburl["host"] . "\r\n";
                if (!empty($CFG_GLPI["proxy_user"])) {
                    $request .= "Proxy-Authorization: Basic " . base64_encode($CFG_GLPI["proxy_user"] . ":" . self::decrypt($CFG_GLPI["proxy_passwd"], GLPIKEY)) . "\r\n";
                }
            } else {
                if (isset($msgerr)) {
                    //TRANS: %s is the error string
                    $msgerr = sprintf(__('Failed to connect to the proxy server (%s)'), $errstr);
                }
                return "";
            }
        }
        $request .= "User-Agent: GLPI/" . trim($CFG_GLPI["version"]) . "\r\n";
        $request .= "Connection: Close\r\n\r\n";
        fwrite($fp, $request);
        $header = true;
        $redir = false;
        $errstr = "";
        while (!feof($fp)) {
            if ($buf = fgets($fp, 1024)) {
                if ($header) {
                    if (strlen(trim($buf)) == 0) {
                        // Empty line = end of header
                        $header = false;
                    } else {
                        if ($redir && preg_match("/^Location: (.*)\$/", $buf, $rep)) {
                            if ($rec < 9) {
                                $desturl = trim($rep[1]);
                                $taburl2 = parse_url($desturl);
                                if (isset($taburl2['host'])) {
                                    // Redirect to another host
                                    return self::getURLContent($desturl, $errstr, $rec + 1);
                                }
                                // redirect to same host
                                return self::getURLContent((isset($taburl['scheme']) ? $taburl['scheme'] : 'http') . "://" . $taburl['host'] . (isset($taburl['port']) ? ':' . $taburl['port'] : '') . $desturl, $errstr, $rec + 1);
                            }
                            $errstr = "Too deep";
                            break;
                        } else {
                            if (preg_match("/^HTTP.*200.*OK/", $buf)) {
                                // HTTP 200 = OK
                            } else {
                                if (preg_match("/^HTTP.*302/", $buf)) {
                                    // HTTP 302 = Moved Temporarily
                                    $redir = true;
                                } else {
                                    if (preg_match("/^HTTP/", $buf)) {
                                        // Other HTTP status = error
                                        $errstr = trim($buf);
                                        break;
                                    }
                                }
                            }
                        }
                    }
                } else {
                    // Body
                    $content .= $buf;
                }
            }
        }
        // eof
        fclose($fp);
        if (empty($content) && isset($msgerr)) {
            if (empty($errstr)) {
                $msgerr = __('No data available on the web site');
            } else {
                //TRANS: %s is the error string
                $msgerr = sprintf(__('Impossible to connect to site (%s)'), $errstr);
            }
        }
        return $content;
    }

         }
         fclose($fp);
         echo "\n";
     }
 } else {
     echo "No IMAP server\n";
 }
 // Check CAS
 if (!empty($CFG_GLPI["cas_host"])) {
     echo "CAS_SERVER";
     $url = $CFG_GLPI["cas_host"];
     if (!empty($CFG_GLPI["cas_port"])) {
         $url .= ':' . intval($CFG_GLPI["cas_port"]);
     }
     $url .= $CFG_GLPI["cas_uri"];
     $data = Toolbox::getURLContent($url);
     if (!empty($data)) {
         echo "_OK";
     } else {
         echo "_PROBLEM";
         $ok = false;
     }
     echo "\n";
 } else {
     echo "No CAS server\n";
 }
 /// Check mailcollectors
 $mailcollectors = getAllDatasFromTable('glpi_mailcollectors', '`is_active`=1');
 if (count($mailcollectors)) {
     echo "Check mail collectors:";
     $mailcol = new MailCollector();