脚本宝典收集整理的这篇文章主要介绍了YII Framework学习之request与response用法(基于CHttpRequest响应)，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。

本文实例讲述了YII Framework学习之request与response用法。分享给大家供大家参考，具体如下：

YII中提供了CHttPRequest，封装了请求常用的方法。具体代码如下：

normalizeRequest();
  }
  protected function normalizeRequest()
  {
    // normalize request
    if(function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc())
    {
      if(isset($_GET))
        $_GET=$this->stripSlashes($_GET);
      if(isset($_POST))
        $_POST=$this->stripSlashes($_POST);
      if(isset($_REQUEST))
        $_REQUEST=$this->stripSlashes($_REQUEST);
      if(isset($_COOKIE))
        $_COOKIE=$this->stripSlashes($_COOKIE);
    }
    if($this->enableCsrfValidation)
      Yii::app()->attachEventHandler('onBeginRequest',array($this,'validateCsrfToken'));
  }
  public function stripSlashes(&$data)
  {
    return is_array($data)?array_map(array($this,'stripSlashes'),$data):stripslashes($data);
  }
  public function getParam($name,$defaultValue=null)
  {
    return isset($_GET[$name]) ? $_GET[$name] : (isset($_POST[$name]) ? $_POST[$name] : $defaultValue);
  }
  public function getQuery($name,$defaultValue=null)
  {
    return isset($_GET[$name]) ? $_GET[$name] : $defaultValue;
  }
  public function getPost($name,$defaultValue=null)
  {
    return isset($_POST[$name]) ? $_POST[$name] : $defaultValue;
  }
  public function getDelete($name,$defaultValue=null)
  {
    if($this->_deleteParams===null)
      $this->_deleteParams=$this->getIsDeleteRequest() ? $this->getRestParams() : array();
    return isset($this->_deleteParams[$name]) ? $this->_deleteParams[$name] : $defaultValue;
  }
  public function getPut($name,$defaultValue=null)
  {
    if($this->_putParams===null)
      $this->_putParams=$this->getIsPutRequest() ? $this->getRestParams() : array();
    return isset($this->_putParams[$name]) ? $this->_putParams[$name] : $defaultValue;
  }
  protected function getRestParams()
  {
    $result=array();
    if(function_exists('mb_parse_str'))
      mb_parse_str(file_get_contents('PHP://input'),$result);
    else
      parse_str(file_get_contents('PHP://input'),$result);
    return $result;
  }
  public function getUrl()
  {
    return $this->getRequestUri();
  }
  public function getHostInfo($schema='')
  {
    if($this->_hostInfo===null)
    {
      if($secure=$this->getIsSecureConnection())
        $http='https';
      else
        $http='http';
      if(isset($_SERVER['HTTP_HOST']))
        $this->_hostInfo=$http.'://'.$_SERVER['HTTP_HOST'];
      else
      {
        $this->_hostInfo=$http.'://'.$_SERVER['SERVER_NAME'];
        $port=$secure ? $this->getSecurePort() : $this->getPort();
        if(($port!==80 && !$secure) || ($port!==443 && $secure))
          $this->_hostInfo.=':'.$port;
      }
    }
    if($schema!=='')
    {
      $secure=$this->getIsSecureConnection();
      if($secure && $schema==='https' || !$secure && $schema==='http')
        return $this->_hostInfo;
      $port=$schema==='https' ? $this->getSecurePort() : $this->getPort();
      if($port!==80 && $schema==='http' || $port!==443 && $schema==='https')
        $port=':'.$port;
      else
        $port='';
      $pos=strpos($this->_hostInfo,':');
      return $schema.substr($this->_hostInfo,$pos,strcspn($this->_hostInfo,':',$pos+1)+1).$port;
    }
    else
      return $this->_hostInfo;
  }
  public function setHostInfo($value)
  {
    $this->_hostInfo=rtrim($value,'/');
  }
  public function getBaseUrl($absolute=false)
  {
    if($this->_baseUrl===null)
      $this->_baseUrl=rtrim(dirname($this->getScriptUrl()),'\\/');
    return $absolute ? $this->getHostInfo() . $this->_baseUrl : $this->_baseUrl;
  }
  public function setBaseUrl($value)
  {
    $this->_baseUrl=$value;
  }
  public function getScriptUrl()
  {
    if($this->_scriptUrl===null)
    {
      $scriptName=basename($_SERVER['SCRIPT_FILENAME']);
      if(basename($_SERVER['SCRIPT_NAME'])===$scriptName)
        $this->_scriptUrl=$_SERVER['SCRIPT_NAME'];
      else if(basename($_SERVER['PHP_SELF'])===$scriptName)
        $this->_scriptUrl=$_SERVER['PHP_SELF'];
      else if(isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME'])===$scriptName)
        $this->_scriptUrl=$_SERVER['ORIG_SCRIPT_NAME'];
      else if(($pos=strpos($_SERVER['PHP_SELF'],'/'.$scriptName))!==false)
        $this->_scriptUrl=substr($_SERVER['SCRIPT_NAME'],$pos).'/'.$scriptName;
      else if(isset($_SERVER['DOCUMENT_ROOT']) && strpos($_SERVER['SCRIPT_FILENAME'],$_SERVER['DOCUMENT_ROOT'])===0)
        $this->_scriptUrl=str_replace('\\','/',str_replace($_SERVER['DOCUMENT_ROOT'],'',$_SERVER['SCRIPT_FILENAME']));
      else
        throw new CException(Yii::t('yii','CHttpRequest is unable to determine the entry script URL.'));
    }
    return $this->_scriptUrl;
  }
  public function setScriptUrl($value)
  {
    $this->_scriptUrl='/'.trim($value,'/');
  }
  public function getPathInfo()
  {
    if($this->_pathInfo===null)
    {
      $pathInfo=$this->getRequestUri();
      if(($pos=strpos($pathInfo,'?'))!==false)
        $pathInfo=substr($pathInfo,$pos);
      $pathInfo=urldecode($pathInfo);
      $scriptUrl=$this->getScriptUrl();
      $baseUrl=$this->getBaseUrl();
      if(strpos($pathInfo,$scriptUrl)===0)
        $pathInfo=substr($pathInfo,strlen($scriptUrl));
      else if($baseUrl==='' || strpos($pathInfo,$baseUrl)===0)
        $pathInfo=substr($pathInfo,strlen($baseUrl));
      else if(strpos($_SERVER['PHP_SELF'],$scriptUrl)===0)
        $pathInfo=substr($_SERVER['PHP_SELF'],strlen($scriptUrl));
      else
        throw new CException(Yii::t('yii','CHttpRequest is unable to determine the path info of the request.'));
      $this->_pathInfo=trim($pathInfo,'/');
    }
    return $this->_pathInfo;
  }
  public function getRequestUri()
  {
    if($this->_requestUri===null)
    {
      if(isset($_SERVER['HTTP_X_REWRITE_URL'])) // IIS
        $this->_requestUri=$_SERVER['HTTP_X_REWRITE_URL'];
      else if(isset($_SERVER['REQUEST_URI']))
      {
        $this->_requestUri=$_SERVER['REQUEST_URI'];
        if(isset($_SERVER['HTTP_HOST']))
        {
          if(strpos($this->_requestUri,$_SERVER['HTTP_HOST'])!==false)
            $this->_requestUri=preg_replace('/^\w+:\/\/[^\/]+/',$this->_requestUri);
        }
        else
          $this->_requestUri=preg_replace('/^(http|https):\/\/[^\/]+/i',$this->_requestUri);
      }
      else if(isset($_SERVER['ORIG_PATH_INFO'])) // IIS 5.0 CGI
      {
        $this->_requestUri=$_SERVER['ORIG_PATH_INFO'];
        if(!empty($_SERVER['QUERY_STRING']))
          $this->_requestUri.='?'.$_SERVER['QUERY_STRING'];
      }
      else
        throw new CException(Yii::t('yii','CHttpRequest is unable to determine the request URI.'));
    }
    return $this->_requestUri;
  }
  public function getQueryString()
  {
    return isset($_SERVER['QUERY_STRING'])?$_SERVER['QUERY_STRING']:'';
  }
  public function getIsSecureConnection()
  {
    return isset($_SERVER['HTTPS']) && !strcasecmp($_SERVER['HTTPS'],'on');
  }
  public function getRequestTyPE()
  {
    return strtoupper(isset($_SERVER['REQUEST_METHOD'])?$_SERVER['REQUEST_METHOD']:'GET');
  }
  public function getIsPostRequest()
  {
    return isset($_SERVER['REQUEST_METHOD']) && !strcasecmp($_SERVER['REQUEST_METHOD'],'POST');
  }
  public function getIsDeleteRequest()
  {
    return isset($_SERVER['REQUEST_METHOD']) && !strcasecmp($_SERVER['REQUEST_METHOD'],'DELETE');
  }
  public function getIsPutRequest()
  {
    return isset($_SERVER['REQUEST_METHOD']) && !strcasecmp($_SERVER['REQUEST_METHOD'],'PUT');
  }
  public function getIsAjaxRequest()
  {
    return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH']==='XMLHttpRequest';
  }
  public function getServerName()
  {
    return $_SERVER['SERVER_NAME'];
  }
  public function getServerPort()
  {
    return $_SERVER['SERVER_PORT'];
  }
  public function getUrlReferrer()
  {
    return isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:null;
  }
  public function getUserAgent()
  {
    return isset($_SERVER['HTTP_USER_AGENT'])?$_SERVER['HTTP_USER_AGENT']:null;
  }
  public function getUserHostAddress()
  {
    return isset($_SERVER['REMOTE_ADDR'])?$_SERVER['REMOTE_ADDR']:'127.0.0.1';
  }
  public function getUserHost()
  {
    return isset($_SERVER['REMOTE_HOST'])?$_SERVER['REMOTE_HOST']:null;
  }
  public function getScriptFile()
  {
    if($this->_scriptFile!==null)
      return $this->_scriptFile;
    else
      return $this->_scriptFile=realpath($_SERVER['SCRIPT_FILENAME']);
  }
  public function getbrowser($userAgent=null)
  {
    return get_browser($userAgent,true);
  }
  public function getAcceptTypes()
  {
    return isset($_SERVER['HTTP_ACCEPT'])?$_SERVER['HTTP_ACCEPT']:null;
  }
  private $_port;
  public function getPort()
  {
    if($this->_port===null)
      $this->_port=!$this->getIsSecureConnection() && isset($_SERVER['SERVER_PORT']) ? (int)$_SERVER['SERVER_PORT'] : 80;
    return $this->_port;
  }
  public function setPort($value)
  {
    $this->_port=(int)$value;
    $this->_hostInfo=null;
  }
  private $_securePort;
  public function getSecurePort()
  {
    if($this->_securePort===null)
      $this->_securePort=$this->getIsSecureConnection() && isset($_SERVER['SERVER_PORT']) ? (int)$_SERVER['SERVER_PORT'] : 443;
    return $this->_securePort;
  }
  public function setSecurePort($value)
  {
    $this->_securePort=(int)$value;
    $this->_hostInfo=null;
  }
  public function getCookies()
  {
    if($this->_cookies!==null)
      return $this->_cookies;
    else
      return $this->_cookies=new CCookieCollection($this);
  }
  public function redirect($url,$terminate=true,$statusCode=302)
  {
    if(strpos($url,'/')===0)
      $url=$this->getHostInfo().$url;
    header('Location: '.$url,true,$statusCode);
    if($terminate)
      Yii::app()->end();
  }
  public function getPreferredLanguage()
  {
    if($this->_preferredLanguage===null)
    {
      if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) && ($n=preg_match_all('/([\w\-_]+)\s*(;\s*q\s*=\s*(\d*\.\d*))?/',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches))>0)
      {
        $languages=array();
        for($i=0;$i<$n;++$i) $languages[$matches[1][$i]]="empty($matches[3][$i])" 1.0="" :="" floatval($matches[3][$i]);="" arsort($languages);="" foreach($languages="" as="" $language="">$pref)
          return $this->_preferredLanguage=CLocale::getcanonicalID($language);
      }
      return $this->_preferredLanguage=false;
    }
    return $this->_preferredLanguage;
  }
  public function sendfile($fileName,$content,$mimeType=null,$terminate=true)
  {
    if($mimeType===null)
    {
      if(($mimeType=CFileHelper::getMimeTypeByExtension($fileName))===null)
        $mimeType='text/plain';
    }
    header('Pragma: public');
    header('Expires: 0');
    header('Cache-Control: must-revalidate,post-check=0,pre-check=0');
    header("Content-type: $mimeType");
    if(ini_get("output_handler")=='')
      header('Content-Length: '.(function_exists('mb_strlen') ? mb_strlen($content,'8bit') : strlen($content)));
    header("Content-Disposition: attachment; filename=\"$fileName\"");
    header('Content-transfer-encoding: binary');
    if($terminate)
    {
      // clean up the application First because the file downloading Could take long time
      // which may cause timeout of some resources (such as DB connection)
      Yii::app()->end(0,false);
      echo $content;
      exit(0);
    }
    else
      echo $content;
  }
  public function xSenDFile($filePath,$options=array())
  {
    if(!is_file($filePath))
      return false;
    if(!isset($options['saveName']))
      $options['saveName']=basename($filePath);
    if(!isset($options['mimeType']))
    {
      if(($options['mimeType']=CFileHelper::getMimeTypeByExtension($filePath))===null)
        $options['mimeType']='text/plain';
    }
    if(!isset($options['xHeader']))
      $options['xHeader']='@R_135_304@';
    header('Content-type: '.$options['mimeType']);
    header('Content-Disposition: attachment; filename="'.$options['saveName'].'"');
    header(trim($options['xHeader']).': '.$filePath);
    if(!isset($options['terminate']) || $options['terminate'])
      Yii::app()->end();
    return true;
  }
  public function getCsrfToken()
  {
    if($this->_csrfToken===null)
    {
      $cookie=$this->getCookies()->itemAt($this->csrfTokenName);
      if(!$cookie || ($this->_csrfToken=$cookie->value)==null)
      {
        $cookie=$this->createCsrfcookie();
        $this->_csrfToken=$cookie->value;
        $this->getCookies()->add($cookie->name,$cookie);
      }
    }
    return $this->_csrfToken;
  }
  protected function createCsrfCookie()
  {
    $cookie=new CHttpCookie($this->csrfTokenName,sha1(uniqid(mt_rand(),true)));
    if(is_array($this->csrfCookie))
    {
      foreach($this->csrfCookie as $name=>$value)
        $cookie->$name=$value;
    }
    return $cookie;
  }
  public function validateCsrfToken($event)
  {
    if($this->getIsPostRequest())
    {
      // only validate POST requests
      $cookies=$this->getCookies();
      if($cookies->contains($this->csrfTokenName) && isset($_POST[$this->csrfTokenName]))
      {
        $tokenFromCookie=$cookies->itemAt($this->csrfTokenName)->value;
        $tokenFromPost=$_POST[$this->csrfTokenName];
        $valid=$tokenFromCookie===$tokenFromPost;
      }
      else
        $valid=false;
      if(!$valid)
        throw new CHttpException(400,Yii::t('yii','The CSRF token Could not be verified.'));
    }
  }
}

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