2018-02-02 13:17:33 +08:00

233 lines
7.8 KiB
PHP
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?php
// +----------------------------------------------------------------------
// | wechat-php-sdk
// +----------------------------------------------------------------------
// | 版权所有 2014~2017 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
// +----------------------------------------------------------------------
// | 官方文档: https://www.kancloud.cn/zoujingli/wechat-php-sdk
// +----------------------------------------------------------------------
// | 开源协议 ( https://mit-license.org )
// +----------------------------------------------------------------------
// | github开源项目https://github.com/zoujingli/wechat-php-sdk
// +----------------------------------------------------------------------
namespace Wechat\Lib;
use Prpcrypt;
use Wechat\Loader;
/**
* 微信SDK基础类
*
* @category WechatSDK
* @subpackage library
* @author Anyon <zoujingli@qq.com>
* @date 2016/05/28 11:55
*/
class Common
{
/** API接口URL需要使用此前缀 */
const API_BASE_URL_PREFIX = 'https://api.weixin.qq.com';
const API_URL_PREFIX = 'https://api.weixin.qq.com/cgi-bin';
const GET_TICKET_URL = '/ticket/getticket?';
const AUTH_URL = '/token?grant_type=client_credential&';
public $token;
public $encodingAesKey;
public $encrypt_type;
public $appid;
public $appsecret;
public $access_token;
public $postxml;
public $_msg;
public $errCode = 0;
public $errMsg = "";
public $config = array();
private $_retry = false;
/**
* 构造方法
* @param array $options
*/
public function __construct($options = array())
{
$config = Loader::config($options);
$this->token = isset($config['token']) ? $config['token'] : '';
$this->appid = isset($config['appid']) ? $config['appid'] : '';
$this->appsecret = isset($config['appsecret']) ? $config['appsecret'] : '';
$this->encodingAesKey = isset($config['encodingaeskey']) ? $config['encodingaeskey'] : '';
$this->config = $config;
}
/**
* 当前当前错误代码
* @return int
*/
public function getErrorCode()
{
return $this->errCode;
}
/**
* 获取当前错误内容
* @return string
*/
public function getError()
{
return $this->errMsg;
}
/**
* 获取当前操作公众号APPID
* @return string
*/
public function getAppid()
{
return $this->appid;
}
/**
* 获取SDK配置参数
* @return array
*/
public function getConfig()
{
return $this->config;
}
/**
* 接口验证
* @return bool
*/
public function valid()
{
$encryptStr = "";
if ($_SERVER['REQUEST_METHOD'] == "POST") {
$postStr = file_get_contents("php://input");
$array = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$this->encrypt_type = isset($_GET["encrypt_type"]) ? $_GET["encrypt_type"] : '';
if ($this->encrypt_type == 'aes') {
$encryptStr = $array['Encrypt'];
!class_exists('Prpcrypt', false) && require __DIR__ . '/Prpcrypt.php';
$pc = new Prpcrypt($this->encodingAesKey);
$array = $pc->decrypt($encryptStr, $this->appid);
if (!isset($array[0]) || intval($array[0]) > 0) {
$this->errCode = $array[0];
$this->errMsg = $array[1];
Tools::log("Interface Authentication Failed. {$this->errMsg}[{$this->errCode}]", "ERR - {$this->appid}");
return false;
}
$this->postxml = $array[1];
empty($this->appid) && $this->appid = $array[2];
} else {
$this->postxml = $postStr;
}
} elseif (isset($_GET["echostr"])) {
if ($this->checkSignature()) {
@ob_clean();
exit($_GET["echostr"]);
}
return false;
}
if (!$this->checkSignature($encryptStr)) {
$this->errMsg = 'Interface authentication failed, please use the correct method to call.';
return false;
}
return true;
}
/**
* 验证来自微信服务器
* @param string $str
* @return bool
*/
private function checkSignature($str = '')
{
$signature = isset($_GET["msg_signature"]) ? $_GET["msg_signature"] : (isset($_GET["signature"]) ? $_GET["signature"] : '');
$timestamp = isset($_GET["timestamp"]) ? $_GET["timestamp"] : '';
$nonce = isset($_GET["nonce"]) ? $_GET["nonce"] : '';
$tmpArr = array($this->token, $timestamp, $nonce, $str);
sort($tmpArr, SORT_STRING);
if (sha1(implode($tmpArr)) == $signature) {
return true;
}
return false;
}
/**
* 获取公众号访问 access_token
* @param string $appid 如在类初始化时已提供,则可为空
* @param string $appsecret 如在类初始化时已提供,则可为空
* @param string $token 手动指定access_token非必要情况不建议用
* @return bool|string
*/
public function getAccessToken($appid = '', $appsecret = '', $token = '')
{
if (!$appid || !$appsecret) {
list($appid, $appsecret) = array($this->appid, $this->appsecret);
}
if ($token) {
return $this->access_token = $token;
}
$cache = 'wechat_access_token_' . $appid;
if (($access_token = Tools::getCache($cache)) && !empty($access_token)) {
return $this->access_token = $access_token;
}
# 检测事件注册
if (isset(Loader::$callback[__FUNCTION__])) {
return $this->access_token = call_user_func_array(Loader::$callback[__FUNCTION__], array(&$this, &$cache));
}
$result = Tools::httpGet(self::API_URL_PREFIX . self::AUTH_URL . 'appid=' . $appid . '&secret=' . $appsecret);
if ($result) {
$json = json_decode($result, true);
if (!$json || isset($json['errcode'])) {
$this->errCode = $json['errcode'];
$this->errMsg = $json['errmsg'];
Tools::log("Get New AccessToken Error. {$this->errMsg}[{$this->errCode}]", "ERR - {$this->appid}");
return false;
}
$this->access_token = $json['access_token'];
Tools::log("Get New AccessToken Success.", "MSG - {$this->appid}");
Tools::setCache($cache, $this->access_token, 5000);
return $this->access_token;
}
return false;
}
/**
* 接口失败重试
* @param string $method SDK方法名称
* @param array $arguments SDK方法参数
* @return bool|mixed
*/
protected function checkRetry($method, $arguments = array())
{
Tools::log("Run {$method} Faild. {$this->errMsg}[{$this->errCode}]", "ERR - {$this->appid}");
if (!$this->_retry && in_array($this->errCode, array('40014', '40001', '41001', '42001'))) {
($this->_retry = true) && $this->resetAuth();
$this->errCode = 40001;
$this->errMsg = 'no access';
Tools::log("Retry Run {$method} ...", "MSG - {$this->appid}");
return call_user_func_array(array($this, $method), $arguments);
}
return false;
}
/**
* 删除验证数据
* @param string $appid 如在类初始化时已提供,则可为空
* @return bool
*/
public function resetAuth($appid = '')
{
$authname = 'wechat_access_token_' . (empty($appid) ? $this->appid : $appid);
Tools::log("Reset Auth And Remove Old AccessToken.", "MSG - {$this->appid}");
$this->access_token = '';
Tools::removeCache($authname);
return true;
}
}