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extend/alipay/AlipaySubmit.php
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181
extend/alipay/AlipaySubmit.php
Executable file
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<?php
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class AlipaySubmit {
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var $alipay_config;
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/**
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*支付宝网关地址
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*/
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var $alipay_gateway_new = 'http://wappaygw.alipay.com/service/rest.htm?';
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function __construct($alipay_config){
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$this->alipay_config = $alipay_config;
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}
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function AlipaySubmit($alipay_config) {
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$this->__construct($alipay_config);
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}
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/**
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* 生成签名结果
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* @param $para_sort 已排序要签名的数组
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* return 签名结果字符串
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*/
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function buildRequestMysign($para_sort) {
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//把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
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$prestr = createLinkstring($para_sort);
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$mysign = "";
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switch (strtoupper(trim($this->alipay_config['sign_type']))) {
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case "MD5" :
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$mysign = md5Sign($prestr, $this->alipay_config['key']);
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break;
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case "RSA" :
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$mysign = rsaSign($prestr, $this->alipay_config['private_key_path']);
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break;
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case "0001" :
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$mysign = rsaSign($prestr, $this->alipay_config['private_key_path']);
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break;
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default :
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$mysign = "";
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}
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return $mysign;
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}
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/**
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* 生成要请求给支付宝的参数数组
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* @param $para_temp 请求前的参数数组
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* @return 要请求的参数数组
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*/
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function buildRequestPara($para_temp) {
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//除去待签名参数数组中的空值和签名参数
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$para_filter = paraFilter($para_temp);
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//对待签名参数数组排序
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$para_sort = argSort($para_filter);
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//生成签名结果
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$mysign = $this->buildRequestMysign($para_sort);
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//签名结果与签名方式加入请求提交参数组中
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$para_sort['sign'] = $mysign;
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if($para_sort['service'] != 'alipay.wap.trade.create.direct' && $para_sort['service'] != 'alipay.wap.auth.authAndExecute') {
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$para_sort['sign_type'] = strtoupper(trim($this->alipay_config['sign_type']));
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}
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return $para_sort;
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}
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/**
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* 生成要请求给支付宝的参数数组
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* @param $para_temp 请求前的参数数组
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* @return 要请求的参数数组字符串
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*/
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function buildRequestParaToString($para_temp) {
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//待请求参数数组
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$para = $this->buildRequestPara($para_temp);
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//把参数组中所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串，并对字符串做urlencode编码
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$request_data = createLinkstringUrlencode($para);
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return $request_data;
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}
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/**
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* 建立请求，以表单HTML形式构造（默认）
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* @param $para_temp 请求参数数组
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* @param $method 提交方式。两个值可选：post、get
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* @param $button_name 确认按钮显示文字
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* @return 提交表单HTML文本
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*/
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function buildRequestForm($para_temp, $method, $button_name) {
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//待请求参数数组
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$para = $this->buildRequestPara($para_temp);
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$sHtml = "<form id='alipaysubmit' name='alipaysubmit' action='".$this->alipay_gateway_new."_input_charset=".trim(strtolower($this->alipay_config['input_charset']))."' method='".$method."'>";
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while (list ($key, $val) = each ($para)) {
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$sHtml.= "<input type='hidden' name='".$key."' value='".$val."'/>";
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}
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//submit按钮控件请不要含有name属性
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$sHtml = $sHtml."<input style='display:none;' type='submit' value='".$button_name."'></form>";
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$sHtml = $sHtml."<script>document.forms['alipaysubmit'].submit();</script>";
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return $sHtml;
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}
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/**
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* 建立请求，以模拟远程HTTP的POST请求方式构造并获取支付宝的处理结果
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* @param $para_temp 请求参数数组
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* @return 支付宝处理结果
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*/
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function buildRequestHttp($para_temp) {
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$sResult = '';
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//待请求参数数组字符串
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$request_data = $this->buildRequestPara($para_temp);
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//远程获取数据
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$sResult = getHttpResponsePOST($this->alipay_gateway_new, $this->alipay_config['cacert'],$request_data,trim(strtolower($this->alipay_config['input_charset'])));
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return $sResult;
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}
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/**
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* 建立请求，以模拟远程HTTP的POST请求方式构造并获取支付宝的处理结果，带文件上传功能
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* @param $para_temp 请求参数数组
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* @param $file_para_name 文件类型的参数名
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* @param $file_name 文件完整绝对路径
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* @return 支付宝返回处理结果
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*/
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function buildRequestHttpInFile($para_temp, $file_para_name, $file_name) {
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//待请求参数数组
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$para = $this->buildRequestPara($para_temp);
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$para[$file_para_name] = "@".$file_name;
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//远程获取数据
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$sResult = getHttpResponsePOST($this->alipay_gateway_new, $this->alipay_config['cacert'],$para,trim(strtolower($this->alipay_config['input_charset'])));
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return $sResult;
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}
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/**
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* 解析远程模拟提交后返回的信息
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* @param $str_text 要解析的字符串
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* @return 解析结果
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*/
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function parseResponse($str_text) {
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//以“&”字符切割字符串
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$para_split = explode('&',$str_text);
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//把切割后的字符串数组变成变量与数值组合的数组
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foreach ($para_split as $item) {
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//获得第一个=字符的位置
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$nPos = strpos($item,'=');
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//获得字符串长度
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$nLen = strlen($item);
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//获得变量名
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$key = substr($item,0,$nPos);
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//获得数值
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$value = substr($item,$nPos+1,$nLen-$nPos-1);
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//放入数组中
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$para_text[$key] = $value;
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}
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if( ! empty ($para_text['res_data'])) {
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//解析加密部分字符串
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if($this->alipay_config['sign_type'] == '0001') {
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$para_text['res_data'] = rsaDecrypt($para_text['res_data'], $this->alipay_config['private_key_path']);
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}
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//token从res_data中解析出来（也就是说res_data中已经包含token的内容）
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$doc = new \DOMDocument();
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$doc->loadXML($para_text['res_data']);
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$para_text['request_token'] = $doc->getElementsByTagName( "request_token" )->item(0)->nodeValue;
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}
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return $para_text;
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}
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/**
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* 用于防钓鱼，调用接口query_timestamp来获取时间戳的处理函数
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* 注意：该功能PHP5环境及以上支持，因此必须服务器、本地电脑中装有支持DOMDocument、SSL的PHP配置环境。建议本地调试时使用PHP开发软件
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* return 时间戳字符串
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*/
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function query_timestamp() {
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$url = $this->alipay_gateway_new."service=query_timestamp&partner=".trim(strtolower($this->alipay_config['partner']))."&_input_charset=".trim(strtolower($this->alipay_config['input_charset']));
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$encrypt_key = "";
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$doc = new \DOMDocument();
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$doc->load($url);
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$itemEncrypt_key = $doc->getElementsByTagName( "encrypt_key" );
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$encrypt_key = $itemEncrypt_key->item(0)->nodeValue;
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return $encrypt_key;
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}
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}
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?>
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