<?php
/**
 * ��̨Ӧ����
 * ============================================================================
 * api˵����
 * getKey()/setKey(),��ȡ/������Կ
 * getContent() / setContent(), ��ȡ/����ԭʼ����
 * getParameter()/setParameter(),��ȡ/���ò���ֵ
 * getAllParameters(),��ȡ���в���
 * isTenpaySign(),�Ƿ�Ƹ�ͨǩ��,true:�� false:��
 * getDebugInfo(),��ȡdebug��Ϣ
 *
 * ============================================================================
 *
 */
class ClientResponseHandler
{

    /** ��Կ */
    var $key;

    /** Ӧ��Ĳ��� */
    var $parameters;

    /** debug��Ϣ */
    var $debugInfo;

    //ԭʼ����
    var $content;

    function __construct()
    {
        $this->ClientResponseHandler();
    }

    function ClientResponseHandler()
    {
        $this->key        = "";
        $this->parameters = array();
        $this->debugInfo  = "";
        $this->content    = "";
    }

    /**
     *��ȡ��Կ
     */
    function getKey()
    {
        return $this->key;
    }

    /**
     *������Կ
     */
    function setKey($key)
    {
        $this->key = $key;
    }

    //����ԭʼ���ݣ�ȷ��PHP����֧��simplexml_load_string�Լ�iconv����������ſ���
    //һ��PHP5������û���⣬PHP4��Ҫ���һ�»����Ƿ�װ��iconv�Լ�simplexmlģ��
    function setContent($content)
    {
        $this->content = $content;
        $xml           = simplexml_load_string($this->content);
        $encode        = $this->getXmlEncode($this->content);
        if ($xml && $xml->children()) {
            foreach ($xml->children() as $node) {
                //���ӽڵ�
                if ($node->children()) {
                    $k       = $node->getName();
                    $nodeXml = $node->asXML();
                    $v       = substr($nodeXml, strlen($k) + 2, strlen($nodeXml) - 2 * strlen($k) - 5);
                } else {
                    $k = $node->getName();
                    $v = (string)$node;
                }
                if ($encode != "" && $encode != "UTF-8") {
                    $k = iconv("UTF-8", $encode, $k);
                    $v = iconv("UTF-8", $encode, $v);
                }
                $this->setParameter($k, $v);
            }
        }
    }

    //����ԭʼ����
    //���PHP4�ϻ����²�֧��simplexml�Լ�iconv���ܵĺ���
    function setContent_backup($content)
    {
        $this->content = $content;
        $encode        = $this->getXmlEncode($this->content);
        $xml           = new SofeeXmlParser();
        $xml->parseFile($this->content);
        $tree = $xml->getTree();
        unset($xml);
        foreach ($tree['root'] as $key => $value) {
            if ($encode != "" && $encode != "UTF-8") {
                $k = mb_convert_encoding($key, $encode, "UTF-8");
                $v = mb_convert_encoding($value[value], $encode, "UTF-8");
            } else {
                $k = $key;
                $v = $value[value];
            }
            $this->setParameter($k, $v);
        }
    }

    //��ȡԭʼ����
    function getContent()
    {
        return $this->content;
    }

    /**
     *��ȡ����ֵ
     */
    function getParameter($parameter)
    {
        return $this->parameters[$parameter];
    }

    /**
     *���ò���ֵ
     */
    function setParameter($parameter, $parameterValue)
    {
        $this->parameters[$parameter] = $parameterValue;
    }

    /**
     *��ȡ��������Ĳ���
     * @return array
     */
    function getAllParameters()
    {
        return $this->parameters;
    }

    /**
     *�Ƿ�Ƹ�ͨǩ��,������:���������a-z����,������ֵ�Ĳ���μ�ǩ��
     *true:��
     *false:��
     */
    function isTenpaySign()
    {
        $signPars = "";
        ksort($this->parameters);
        foreach ($this->parameters as $k => $v) {
            if ("sign" != $k && "" != $v) {
                $signPars .= $k . "=" . $v . "&";
            }
        }
        $signPars .= "key=" . $this->getKey();
        $sign       = strtolower(md5($signPars));
        $tenpaySign = strtolower($this->getParameter("sign"));
        //debug��Ϣ
        $this->_setDebugInfo(
            $signPars . " => sign:" . $sign . " tenpaySign:" . $this->getParameter("sign")
        );
        return $sign == $tenpaySign;
    }

    /**
     *��ȡdebug��Ϣ
     */
    function getDebugInfo()
    {
        return $this->debugInfo;
    }

    //��ȡxml����
    function getXmlEncode($xml)
    {
        $ret = preg_match("/<?xml[^>]* encoding=\"(.*)\"[^>]* ?>/i", $xml, $arr);
        if ($ret) {
            return strtoupper($arr[1]);
        } else {
            return "";
        }
    }

    /**
     *����debug��Ϣ
     */
    function _setDebugInfo($debugInfo)
    {
        $this->debugInfo = $debugInfo;
    }

    /**
     * �Ƿ�Ƹ�ͨǩ��
     * @param signParameterArray ǩ��Ĳ�������
     *
     * @return boolean
     */
    function _isTenpaySign($signParameterArray)
    {
        $signPars = "";
        foreach ($signParameterArray as $k) {
            $v = $this->getParameter($k);
            if ("sign" != $k && "" != $v) {
                $signPars .= $k . "=" . $v . "&";
            }
        }
        $signPars .= "key=" . $this->getKey();
        $sign       = strtolower(md5($signPars));
        $tenpaySign = strtolower($this->getParameter("sign"));
        //debug��Ϣ
        $this->_setDebugInfo(
            $signPars . " => sign:" . $sign . " tenpaySign:" . $this->getParameter("sign")
        );
        return $sign == $tenpaySign;
    }
}