155 lines
3.3 KiB
PHP
155 lines
3.3 KiB
PHP
<?php
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namespace app\api\wxapi\pay;
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/**
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* 2015-06-29 修复签名问题
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**/
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/**
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*
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* 数据对象基础类，该类中定义数据类最基本的行为，包括：
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* 计算/设置/获取签名、输出xml格式的参数、从xml读取数据对象等
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* @author widyhu
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*
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*/
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class WxPayDataBase
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{
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protected $values = array();
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/**
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* 设置签名，详见签名生成算法类型
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* @param string $value
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**/
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public function SetSignType($sign_type)
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{
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$this->values['sign_type'] = $sign_type;
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return $sign_type;
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}
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/**
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* 设置签名，详见签名生成算法
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* @param string $value
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**/
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public function SetSign($config)
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{
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$sign = $this->MakeSign($config);
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$this->values['sign'] = $sign;
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return $sign;
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}
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/**
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* 获取签名，详见签名生成算法的值
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* @return 值
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**/
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public function GetSign()
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{
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return $this->values['sign'];
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}
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/**
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* 判断签名，详见签名生成算法是否存在
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* @return true 或 false
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**/
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public function IsSignSet()
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{
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return array_key_exists('sign', $this->values);
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}
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/**
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* 输出xml字符
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* @throws WxPayException
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**/
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public function ToXml()
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{
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if(!is_array($this->values) || count($this->values) <= 0)
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{
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throw new WxPayException("数组数据异常！");
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}
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$xml = "<xml>";
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foreach ($this->values as $key=>$val)
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{
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if (is_numeric($val)){
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$xml.="<".$key.">".$val."</".$key.">";
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}else{
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$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
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}
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}
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$xml.="</xml>";
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return $xml;
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}
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/**
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* 将xml转为array
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* @param string $xml
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* @throws WxPayException
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*/
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public function FromXml($xml)
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{
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if(!$xml){
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throw new WxPayException("xml数据异常！");
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}
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//将XML转为array
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//禁止引用外部xml实体
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libxml_disable_entity_loader(true);
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$this->values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
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return $this->values;
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}
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/**
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* 格式化参数格式化成url参数
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*/
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public function ToUrlParams()
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{
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$buff = "";
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foreach ($this->values as $k => $v)
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{
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if($k != "sign" && $v != "" && !is_array($v)){
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$buff .= $k . "=" . $v . "&";
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}
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}
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$buff = trim($buff, "&");
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return $buff;
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}
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/**
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* 生成签名
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* @param WxPayConfigInterface $config 配置对象
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* @param bool $needSignType 是否需要补signtype
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* @return 签名，本函数不覆盖sign成员变量，如要设置签名需要调用SetSign方法赋值
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*/
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public function MakeSign($config, $needSignType = true)
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{
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if($needSignType) {
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$this->SetSignType($config->GetSignType());
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}
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//签名步骤一：按字典序排序参数
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ksort($this->values);
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$string = $this->ToUrlParams();
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//签名步骤二：在string后加入KEY
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$string = $string . "&key=".$config->GetKey();
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//签名步骤三：MD5加密或者HMAC-SHA256
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if($config->GetSignType() == "MD5"){
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$string = md5($string);
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} else if($config->GetSignType() == "HMAC-SHA256") {
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$string = hash_hmac("sha256",$string ,$config->GetKey());
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} else {
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throw new WxPayException("签名类型不支持！");
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}
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//签名步骤四：所有字符转为大写
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$result = strtoupper($string);
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return $result;
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}
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/**
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* 获取设置的值
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*/
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public function GetValues()
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{
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return $this->values;
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}
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}
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