/**
  * Helper-method to determine whether an user is a backend user
  *
  * @param mixed $user User object or identifier
  * @param string $type Either object, email or username
  * @return boolean
  */
 public static function isBackendUser($user = null, $type = 'object')
 {
     // Check for empty user
     if (empty($user)) {
         return false;
     }
     // Get the right instance
     if ($user instanceof JUser == false) {
         if ($type == 'email') {
             $user = MageBridge::getUser()->loadByEmail($user);
         }
         if ($type == 'username') {
             $user = MageBridge::getUser()->loadByUsername($user);
         }
     }
     // Check the legacy usertype parameter
     if (!empty($user->usertype) && (stristr($user->usertype, 'administrator') || stristr($user->usertype, 'manager'))) {
         return false;
     }
     // Check for ACL access
     if (method_exists($user, 'authorise') && $user->authorise('core.admin')) {
         return true;
     }
     return false;
 }

 protected function _isFetchQuery($sql)
 {
     if (stristr($sql, "DELETE FROM ") || stristr($sql, "UPDATE ") || stristr($sql, "INSERT ")) {
         return false;
     }
     return true;
 }

 /**
  * 判断客户端是否是手机端
  * @return bool
  */
 public static function isMobile()
 {
     // 如果有HTTP_X_WAP_PROFILE则一定是移动设备
     if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
         return true;
     }
     // 如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
     if (isset($_SERVER['HTTP_VIA'])) {
         // 找不到为flase,否则为true
         return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
     }
     // 脑残法，判断手机发送的客户端标志,兼容性有待提高
     if (isset($_SERVER['HTTP_USER_AGENT'])) {
         $clientkeywords = array('nokia', 'sony', 'ericsson', 'mot', 'samsung', 'htc', 'sgh', 'lg', 'sharp', 'sie-', 'philips', 'panasonic', 'alcatel', 'lenovo', 'iphone', 'ipod', 'blackberry', 'meizu', 'android', 'netfront', 'symbian', 'ucweb', 'windowsce', 'palm', 'operamini', 'operamobi', 'openwave', 'nexusone', 'cldc', 'midp', 'wap', 'mobile');
         // 从HTTP_USER_AGENT中查找手机浏览器的关键字
         if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
             return true;
         }
     }
     // 协议法，因为有可能不准确，放到最后判断
     if (isset($_SERVER['HTTP_ACCEPT'])) {
         // 如果只支持wml并且不支持html那一定是移动设备
         // 如果支持wml和html但是wml在html之前则是移动设备
         if (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html'))) {
             return true;
         }
     }
     return false;
 }

 private function loadVariable($line)
 {
     if (stristr($line, '=')) {
         $config = explode('=', $line);
         $this->variables[trim($config[0])] = trim($config[1]);
     }
 }

function search_doc_files($s)
{
    $a = get_app();
    $itemspage = get_pconfig(local_channel(), 'system', 'itemspage');
    App::set_pager_itemspage(intval($itemspage) ? $itemspage : 20);
    $pager_sql = sprintf(" LIMIT %d OFFSET %d ", intval(App::$pager['itemspage']), intval(App::$pager['start']));
    $regexop = db_getfunc('REGEXP');
    $r = q("select item_id.sid, item.* from item left join item_id on item.id = item_id.iid where service = 'docfile' and\n\t\tbody {$regexop} '%s' and item_type = %d {$pager_sql}", dbesc($s), intval(ITEM_TYPE_DOC));
    $r = fetch_post_tags($r, true);
    for ($x = 0; $x < count($r); $x++) {
        $r[$x]['text'] = $r[$x]['body'];
        $r[$x]['rank'] = 0;
        if ($r[$x]['term']) {
            foreach ($r[$x]['term'] as $t) {
                if (stristr($t['term'], $s)) {
                    $r[$x]['rank']++;
                }
            }
        }
        if (stristr($r[$x]['sid'], $s)) {
            $r[$x]['rank']++;
        }
        $r[$x]['rank'] += substr_count(strtolower($r[$x]['text']), strtolower($s));
        // bias the results to the observer's native language
        if ($r[$x]['lang'] === App::$language) {
            $r[$x]['rank'] = $r[$x]['rank'] + 10;
        }
    }
    usort($r, 'doc_rank_sort');
    return $r;
}

function is_strinclude($str, $needle, $type = 0)
{
    if (!$needle) {
        return false;
    }
    $flag = true;
    if (function_exists('stripos')) {
        if ($type == 0) {
            if (stripos($str, $needle) === false) {
                $flag = false;
            }
        } else {
            if ($type == 1) {
                if (strpos($str, $needle) === false) {
                    $flag = false;
                }
            }
        }
    } else {
        if ($type == 0) {
            if (stristr($str, $needle) === false) {
                $flag = false;
            }
        } else {
            if ($type == 1) {
                if (strstr($str, $needle) === false) {
                    $flag = false;
                }
            }
        }
    }
    return $flag;
}

function parseAndValidateArguments($args)
{
    global $validArgKeys;
    $params = array();
    foreach ($args as $arg) {
        if (stristr($arg, '=')) {
            $argKeyValue = explode('=', $arg);
            if (count($argKeyValue) === 2) {
                // check if it's a valid key-value argument
                if (in_array($argKeyValue[0], $validArgKeys)) {
                    // check the key for validity
                    $params[$argKeyValue[0]] = $argKeyValue[1];
                }
            }
        }
    }
    if (count($params) === count($validArgKeys)) {
        // @TODO: check the values per key for validity all needs to be numeric but comment a string...
        return $params;
    } else {
        // not enough valid arguments given:
        // we simple stop the ongoing process and return none zero.
        echo "ERROR 1";
        return array();
    }
}

 /**
  * Modify the url and add headers appropriate to authenticate to Acquia Search.
  *
  * @return
  *  The nonce used in the request.
  */
 protected function prepareRequest(&$url, &$options, $use_data = TRUE)
 {
     // Add a unique request ID to the URL.
     $id = uniqid();
     if (!stristr($url, '?')) {
         $url .= "?";
     } else {
         $url .= "&";
     }
     $url .= 'request_id=' . $id;
     // If we're hosted on Acquia, and have an Acquia request ID,
     // append it to the request so that we map Solr queries to Acquia search requests.
     if (isset($_ENV['HTTP_X_REQUEST_ID'])) {
         $xid = empty($_ENV['HTTP_X_REQUEST_ID']) ? '-' : $_ENV['HTTP_X_REQUEST_ID'];
         $url .= '&x-request-id=' . rawurlencode($xid);
     }
     if ($use_data && isset($options['data'])) {
         list($cookie, $nonce) = acquia_search_auth_cookie($url, $options['data'], NULL, $this->env_id);
     } else {
         list($cookie, $nonce) = acquia_search_auth_cookie($url, NULL, NULL, $this->env_id);
     }
     if (empty($cookie)) {
         throw new Exception('Invalid authentication string - subscription keys expired or missing.');
     }
     $options['headers']['Cookie'] = $cookie;
     $options['headers'] += array('User-Agent' => 'acquia_search/' . variable_get('acquia_search_version', '7.x'));
     $options['context'] = acquia_agent_stream_context_create($url, 'acquia_search');
     if (!$options['context']) {
         throw new Exception(t("Could not create stream context"));
     }
     return $nonce;
 }

 public static function getValueFromOptions($field, $value, $config = array())
 {
     $opts = explode('||', $field->options);
     if ($value == '') {
         return $value;
     }
     if (count($opts)) {
         $exist = false;
         foreach ($opts as $opt) {
             $o = explode('=', $opt);
             if ($config['doTranslation'] && trim($o[0])) {
                 $o[0] = JText::_('COM_CCK_' . str_replace(' ', '_', trim($o[0])));
             }
             // if ( strcasecmp( $o[0], $value ) == 0 ) {
             if (stristr($o[0], $value) !== false) {
                 return isset($o[1]) ? $o[1] : $o[0];
                 break;
             }
         }
         if ($exist === true) {
             $value[] = $val;
         }
     }
     return $value;
 }

function isMobile()
{
    // 如果有HTTP_X_WAP_PROFILE则一定是移动设备
    if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
        return true;
    }
    // 如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
    if (isset($_SERVER['HTTP_VIA'])) {
        return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
    }
    // 脑残法，判断手机发送的客户端标志,兼容性有待提高
    if (isset($_SERVER['HTTP_USER_AGENT'])) {
        $clientkeywords = array('iphone', 'android', 'mobile');
        // 从HTTP_USER_AGENT中查找手机浏览器的关键字
        if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
            return true;
        }
    }
    // 协议法，因为有可能不准确，放到最后判断
    if (isset($_SERVER['HTTP_ACCEPT'])) {
        // 如果只支持wml并且不支持html那一定是移动设备
        // 如果支持wml和html但是wml在html之前则是移动设备
        if (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html'))) {
            return true;
        }
    }
    return false;
}

 function setTabs($a_show_settings = true)
 {
     global $lng, $ilHelp;
     $ilHelp->setScreenIdComponent("wfld");
     $this->ctrl->setParameter($this, "wsp_id", $this->node_id);
     $this->tabs_gui->addTab("wsp", $lng->txt("wsp_tab_personal"), $this->ctrl->getLinkTarget($this, ""));
     $this->ctrl->setParameterByClass("ilObjWorkspaceRootFolderGUI", "wsp_id", $this->getAccessHandler()->getTree()->getRootId());
     $this->tabs_gui->addTab("share", $lng->txt("wsp_tab_shared"), $this->ctrl->getLinkTargetByClass("ilObjWorkspaceRootFolderGUI", "shareFilter"));
     $this->tabs_gui->addTab("ownership", $lng->txt("wsp_tab_ownership"), $this->ctrl->getLinkTargetByClass(array("ilObjWorkspaceRootFolderGUI", "ilObjectOwnershipManagementGUI"), "listObjects"));
     if (!$this->ctrl->getNextClass($this)) {
         if (stristr($this->ctrl->getCmd(), "share")) {
             $this->tabs_gui->activateTab("share");
         } else {
             $this->tabs_gui->activateTab("wsp");
             if ($a_show_settings) {
                 if ($this->checkPermissionBool("read")) {
                     $this->tabs_gui->addSubTab("content", $lng->txt("content"), $this->ctrl->getLinkTarget($this, ""));
                 }
                 if ($this->checkPermissionBool("write")) {
                     $this->tabs_gui->addSubTab("settings", $lng->txt("settings"), $this->ctrl->getLinkTarget($this, "edit"));
                 }
             }
         }
     }
 }

 public static function getBrowser()
 {
     $browsers = "mozilla msie gecko firefox ";
     $browsers .= "konqueror safari netscape navigator ";
     $browsers .= "opera mosaic lynx amaya omniweb";
     $browsers = explode(" ", $browsers);
     $nua = strToLower($_SERVER['HTTP_USER_AGENT']);
     $res = array();
     $l = strlen($nua);
     for ($i = 0; $i < count($browsers); $i++) {
         $browser = $browsers[$i];
         $n = stristr($nua, $browser);
         if (strlen($n) > 0) {
             $res["version"] = "";
             $res["browser"] = $browser;
             $j = strpos($nua, $res["browser"]) + $n + strlen($res["browser"]) + 1;
             for (; $j <= $l; $j++) {
                 $s = substr($nua, $j, 1);
                 if (is_numeric($res["version"] . $s)) {
                     $res["version"] .= $s;
                 }
                 break;
             }
         }
     }
     return $res;
 }

 public function Leech($url)
 {
     list($url, $pass) = $this->linkpassword($url);
     $data = $this->lib->curl($url, $this->lib->cookie, "");
     if ($pass) {
         $post = $this->parseForm($this->lib->cut_str($data, '<Form name="F1"', '</Form>'));
         $post["password"] = $pass;
         $data = $this->lib->curl($url, $this->lib->cookie, $post);
         if (stristr($data, 'Wrong password')) {
             $this->error("wrongpass", true, false);
         } elseif (preg_match('@http:\\/\\/(\\w+\\.)?1st-files\\.com\\/d\\/[^"\'><\\r\\n\\t]+@i', $data, $giay)) {
             return trim($giay[0]);
         }
     }
     if (stristr($data, '<br><b>Password:</b> <input type="password"')) {
         $this->error("reportpass", true, false);
     } elseif (stristr($data, '>File Not Found<')) {
         $this->error("dead", true, false, 2);
     } elseif (!$this->isredirect($data)) {
         $post = $this->parseForm($this->lib->cut_str($data, '<Form name="F1"', '</Form>'));
         $data = $this->lib->curl($url, $this->lib->cookie, $post);
         if (preg_match('@http:\\/\\/(\\w+\\.)?1st-files\\.com\\/d\\/[^"\'><\\r\\n\\t]+@i', $data, $giay)) {
             return trim($giay[0]);
         }
     } else {
         return trim($this->redirect);
     }
     return false;
 }

 public function routeProvider()
 {
     // Have to setup error handler here as well, as PHPUnit calls on 
     // provider methods outside the scope of setUp().
     set_error_handler(function ($errno, $errstr) {
         return stristr($errstr, 'query route deprecated');
     }, E_USER_DEPRECATED);
     return array(
         'simple-match' => array(
             new Query(),
             'foo=bar&baz=bat',
             null,
             array('foo' => 'bar', 'baz' => 'bat')
         ),
         'empty-match' => array(
             new Query(),
             '',
             null,
             array()
         ),
         'url-encoded-parameters-are-decoded' => array(
             new Query(),
             'foo=foo%20bar',
             null,
             array('foo' => 'foo bar')
         ),
         'nested-params' => array(
             new Query(),
             'foo%5Bbar%5D=baz&foo%5Bbat%5D=foo%20bar',
             null,
             array('foo' => array('bar' => 'baz', 'bat' => 'foo bar'))
         ),
     );
 }

 /**
  * Save a template with the current params. Writes file to `Create::$path`.
  * Override default save to add timestamp in file name.
  *
  * @param array $params
  * @return string A result string on success of writing the file. If any errors occur along
  *         the way such as missing information boolean false is returned.
  */
 protected function _save(array $params = array())
 {
     $defaults = array('namespace' => null, 'class' => null);
     $params += $defaults;
     if (empty($params['class']) || empty($this->_library['path'])) {
         return false;
     }
     $contents = $this->_template();
     $result = String::insert($contents, $params);
     $namespace = str_replace($this->_library['prefix'], '\\', $params['namespace']);
     $date = date('YmdHis');
     $path = str_replace('\\', '/', "{$namespace}\\{$date}_{$params['class']}");
     $path = $this->_library['path'] . stristr($path, '/');
     $file = str_replace('//', '/', "{$path}.php");
     $directory = dirname($file);
     $relative = str_replace($this->_library['path'] . '/', "", $file);
     if (!is_dir($directory) && !mkdir($directory, 0755, true)) {
         return false;
     }
     if (file_exists($file)) {
         $prompt = "{$relative} already exists. Overwrite?";
         $choices = array('y', 'n');
         if ($this->in($prompt, compact('choices')) !== 'y') {
             return "{$params['class']} skipped.";
         }
     }
     if (file_put_contents($file, "<?php\n\n{$result}\n\n?>")) {
         return "{$params['class']} created in {$relative}.";
     }
     return false;
 }

 public function Leech($url)
 {
     list($url, $pass) = $this->linkpassword($url);
     $data = $this->lib->curl($url, $this->lib->cookie, "");
     if ($pass) {
         $post = $this->parseForm($this->lib->cut_str($data, '<form', '</form>'));
         $post["password"] = $pass;
         $data = $this->lib->curl($url, $this->lib->cookie, $post);
         if (stristr($data, 'Wrong password')) {
             $this->error("wrongpass", true, false, 2);
         } elseif (preg_match('@https?:\\/\\/www\\d+\\.uptobox.com\\/d\\/[^\'\\"\\s\\t<>\\r\\n]+@i', $data, $link)) {
             return trim(str_replace('https', 'http', $link[0]));
         }
     }
     if (stristr($data, 'type="password" name="password')) {
         $this->error("reportpass", true, false);
     } elseif (stristr($data, 'The file was deleted by its owner') || stristr($data, 'Page not found / La page')) {
         $this->error("dead", true, false, 2);
     } elseif (!$this->isredirect($data)) {
         $post = $this->parseForm($this->lib->cut_str($data, '<form name="F1"', '</form>'));
         $data = $this->lib->curl($url, $this->lib->cookie, $post);
         if (preg_match('@https?:\\/\\/www\\d+\\.uptobox.com\\/d\\/[^\'\\"\\s\\t<>\\r\\n]+@i', $data, $link)) {
             return trim(str_replace('https', 'http', $link[0]));
         }
     } else {
         return trim(str_replace('https', 'http', trim($this->redirect)));
     }
     return false;
 }

 function openstats()
 {
     $fp = fsockopen($this->host, $this->port, $errno, $errstr, 10);
     if (!$fp) {
         $this->_error = "{$errstr} ({$errno})";
         return 0;
     } else {
         fputs($fp, "GET /admin.cgi?pass=" . $this->passwd . "&mode=viewxml HTTP/1.0\r\n");
         fputs($fp, "User-Agent: Mozilla\r\n\r\n");
         while (!feof($fp)) {
             $this->_xml .= fgets($fp, 512);
         }
         fclose($fp);
         if (stristr($this->_xml, "HTTP/1.0 200 OK") == true) {
             // <-H> Thanks to Blaster for this fix.. trim();
             $this->_xml = trim(substr($this->_xml, 42));
         } else {
             $this->_error = "Bad login";
             return 0;
         }
         $xmlparser = xml_parser_create();
         if (!xml_parse_into_struct($xmlparser, $this->_xml, $this->_values, $this->_indexes)) {
             $this->_error = "Unparsable XML";
             return 0;
         }
         xml_parser_free($xmlparser);
         return 1;
     }
 }

function get_device_useragent($device)
{
    global $astman;
    $response = $astman->send_request('Command', array('Command' => "sip show peer {$device}"));
    $astout = explode("\n", $response['data']);
    $ua = "";
    foreach ($astout as $entry) {
        if (eregi("useragent", $entry)) {
            list(, $value) = split(":", $entry);
            $ua = trim($value);
        }
    }
    if ($ua) {
        if (stristr($ua, "Aastra")) {
            return "aastra";
        }
        if (stristr($ua, "Grandstream")) {
            return "grandstream";
        }
        if (stristr($ua, "snom")) {
            return "snom";
        }
        if (stristr($ua, "Cisco")) {
            return "cisco";
        }
        if (stristr($ua, "Polycom")) {
            return "polycom";
        }
    }
    return null;
}

 /**
  * Validates the Input Parameters onBeforeVendorUpdate
  *
  * @param array $d
  * @return boolean
  */
 function validate_update(&$d)
 {
     global $vmLogger;
     require_once CLASSPATH . 'imageTools.class.php';
     if (!vmImageTools::validate_image($d, "vendor_thumb_image", "vendor")) {
         return false;
     }
     if (!vmImageTools::validate_image($d, "vendor_full_image", "vendor")) {
         return false;
     }
     // convert all "," in prices to decimal points.
     if (stristr($d["vendor_min_pov"], ",")) {
         $d["vendor_min_pov"] = str_replace(',', '.', $d["vendor_min_pov"]);
     }
     if (!$d["vendor_name"]) {
         $vmLogger->err('You must enter a name for the vendor.');
         return False;
     }
     if (!$d["contact_email"]) {
         $vmLogger->err('You must enter an email address for the vendor contact.');
         return False;
     }
     if (!vmValidateEmail($d["contact_email"])) {
         $vmLogger->err('Please provide a valide email address for the vendor contact.');
         return False;
     }
     return True;
 }

 /**
  * Associates IP Address to the server
  *
  * @param   DBServer           $dbServer  DBServer object
  * @param   string             $ipAddress Public IP address to associate with server.
  * @throws  \Exception
  */
 private static function associateIpAddress(DBServer $dbServer, $ipAddress, $allocationId = null)
 {
     $aws = $dbServer->GetEnvironmentObject()->aws($dbServer);
     $assign_retries = 1;
     $retval = false;
     while (true) {
         try {
             // Associate elastic ip address with instance
             $request = new AssociateAddressRequestData($dbServer->GetProperty(\EC2_SERVER_PROPERTIES::INSTANCE_ID), $ipAddress);
             if ($allocationId) {
                 $request->allocationId = $allocationId;
                 $request->publicIp = null;
                 $request->allowReassociation = true;
             }
             $aws->ec2->address->associate($request);
             $retval = true;
             break;
         } catch (\Exception $e) {
             if (!stristr($e->getMessage(), "does not belong to you") || $assign_retries == 3) {
                 throw new \Exception($e->getMessage());
             } else {
                 // Waiting...
                 \Logger::getLogger(__CLASS__)->debug(_("Waiting 2 seconds..."));
                 sleep(2);
                 $assign_retries++;
                 continue;
             }
         }
         break;
     }
     return $retval;
 }