更新内核
增加自定义表单（未完成）
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179
core/extend/Wechat/Lib/Common.php
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179
core/extend/Wechat/Lib/Common.php
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<?php
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namespace Wechat\Lib;
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use Prpcrypt;
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use Wechat\Loader;
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/**
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* 微信SDK基础类
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*
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* @category WechatSDK
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* @subpackage library
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* @author Anyon <zoujingli@qq.com>
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* @date 2016/05/28 11:55
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*/
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class Common {
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/** API接口URL需要使用此前缀 */
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const API_BASE_URL_PREFIX = 'https://api.weixin.qq.com';
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const API_URL_PREFIX = 'https://api.weixin.qq.com/cgi-bin';
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const GET_TICKET_URL = '/ticket/getticket?';
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const AUTH_URL = '/token?grant_type=client_credential&';
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public $token;
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public $encodingAesKey;
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public $encrypt_type;
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public $appid;
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public $appsecret;
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public $access_token;
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public $postxml;
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public $_msg;
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public $errCode = 0;
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public $errMsg = "";
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public $config = array();
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private $_retry = FALSE;
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/**
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* 构造方法
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* @param array $options
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*/
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public function __construct($options = array()) {
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$config = Loader::config($options);
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$this->token = isset($config['token']) ? $config['token'] : '';
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$this->appid = isset($config['appid']) ? $config['appid'] : '';
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$this->appsecret = isset($config['appsecret']) ? $config['appsecret'] : '';
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$this->encodingAesKey = isset($config['encodingaeskey']) ? $config['encodingaeskey'] : '';
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$this->config = $config;
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}
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/**
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* 接口验证
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* @return bool
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*/
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public function valid() {
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$encryptStr = "";
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if ($_SERVER['REQUEST_METHOD'] == "POST") {
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$postStr = file_get_contents("php://input");
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$array = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
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$this->encrypt_type = isset($_GET["encrypt_type"]) ? $_GET["encrypt_type"] : '';
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if ($this->encrypt_type == 'aes') {
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$encryptStr = $array['Encrypt'];
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!class_exists('Prpcrypt', FALSE) && require __DIR__ . '/Prpcrypt.php';
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$pc = new Prpcrypt($this->encodingAesKey);
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$array = $pc->decrypt($encryptStr, $this->appid);
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if (!isset($array[0]) || intval($array[0]) > 0) {
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$this->errCode = $array[0];
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$this->errMsg = $array[1];
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Tools::log("Interface Authentication Failed. {$this->errMsg}[{$this->errCode}]", 'ERR');
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return false;
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}
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$this->postxml = $array[1];
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empty($this->appid) && $this->appid = $array[2];
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} else {
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$this->postxml = $postStr;
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}
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} elseif (isset($_GET["echostr"])) {
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if ($this->checkSignature()) {
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exit($_GET["echostr"]);
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} else {
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return false;
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}
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}
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if (!$this->checkSignature($encryptStr)) {
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$this->errMsg = 'Interface authentication failed, please use the correct method to call.';
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return false;
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}
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return true;
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}
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/**
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* 验证来自微信服务器
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* @param string $str
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* @return bool
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*/
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private function checkSignature($str = '') {
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// 如果存在加密验证则用加密验证段
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$signature = isset($_GET["msg_signature"]) ? $_GET["msg_signature"] : (isset($_GET["signature"]) ? $_GET["signature"] : '');
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$timestamp = isset($_GET["timestamp"]) ? $_GET["timestamp"] : '';
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$nonce = isset($_GET["nonce"]) ? $_GET["nonce"] : '';
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$tmpArr = array($this->token, $timestamp, $nonce, $str);
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sort($tmpArr, SORT_STRING);
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if (sha1(implode($tmpArr)) == $signature) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* 获取公众号访问 access_token
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* @param string $appid 如在类初始化时已提供，则可为空
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* @param string $appsecret 如在类初始化时已提供，则可为空
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* @param string $token 手动指定access_token，非必要情况不建议用
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* @return bool|string
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*/
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public function getAccessToken($appid = '', $appsecret = '', $token = '') {
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if (!$appid || !$appsecret) {
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$appid = $this->appid;
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$appsecret = $this->appsecret;
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}
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if ($token) {
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return $this->access_token = $token;
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}
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$cache = 'wechat_access_token_' . $appid;
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if (($access_token = Tools::getCache($cache)) && !empty($access_token)) {
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return $this->access_token = $access_token;
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}
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# 检测事件注册
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if (isset(Loader::$callback[__FUNCTION__])) {
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return $this->access_token = call_user_func_array(Loader::$callback[__FUNCTION__], array(&$this, &$cache));
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}
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$result = Tools::httpGet(self::API_URL_PREFIX . self::AUTH_URL . 'appid=' . $appid . '&secret=' . $appsecret);
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if ($result) {
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$json = json_decode($result, true);
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if (!$json || isset($json['errcode'])) {
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$this->errCode = $json['errcode'];
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$this->errMsg = $json['errmsg'];
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Tools::log("Get New AccessToken Error. {$this->errMsg}[{$this->errCode}]", 'ERR');
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return false;
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}
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$this->access_token = $json['access_token'];
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Tools::log("Get New AccessToken Success.");
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Tools::setCache($cache, $this->access_token, 5000);
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return $this->access_token;
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}
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return false;
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}
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/**
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* 接口失败重试
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* @param $method SDK方法名称
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* @param array $arguments SDK方法参数
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* @return bool|mixed
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*/
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protected function checkRetry($method, $arguments = array()) {
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if (!$this->_retry && in_array($this->errCode, array('40014', '40001', '41001', '42001'))) {
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Tools::log("Run {$method} Faild. {$this->errMsg}[{$this->errCode}]", 'ERR');
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($this->_retry = true) && $this->resetAuth();
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$this->errCode = 40001;
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$this->errMsg = 'no access';
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Tools::log("Retry Run {$method} ...");
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return call_user_func_array(array($this, $method), $arguments);
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}
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return false;
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}
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/**
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* 删除验证数据
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* @param string $appid 如在类初始化时已提供，则可为空
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* @return bool
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*/
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public function resetAuth($appid = '') {
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$authname = 'wechat_access_token_' . (empty($appid) ? $this->appid : $appid);
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Tools::log("Reset Auth And Remove Old AccessToken.");
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$this->access_token = '';
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Tools::removeCache($authname);
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return true;
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}
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}
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