1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
<?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");
$disableEntities = libxml_disable_entity_loader(true);
$array = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
libxml_disable_entity_loader($disableEntities);
$this->encrypt_type = isset($_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;
}
}
|
