小程序端獲取數(shù)據(jù):使用session_key 去獲取uniqueid。
app.js
login: function () {
var that = this;
// 登錄
wx.login({
success: res => {
// 發(fā)送 res.code 到后臺換取 openId, sessionKey
wx.request({
url: 'https://www******l/api/jscode2session.php',
data: { code: res.code },
method: 'POST',
header: {
'content-type': 'application/x-www-form-urlencoded'
},
success: function (data) {
that.getUserInfo(data.data.data.user_info.session_key);//解碼獲取unionID
}
})
}
})
},
getUserInfo:function(sessionKey){
var that = this
wx.getUserInfo({
success: res => {
res.sessionKey = sessionKey
// 可以將 res 發(fā)送給后臺解碼出 unionId
wx.request({
url: 'https://*****/api/aes_data.php',
data: res,
method: 'POST',
header: {
'content-type': 'application/x-www-form-urlencoded'
},
success: function (data) {
//解碼獲取unionID
that.globalData.userInfo = data.data
}
})
// 由于 getUserInfo 是網(wǎng)絡請求鹰祸,可能會在 Page.onLoad 之后才返回
// 所以此處加入 callback 以防止這種情況
if (this.userInfoReadyCallback) {
this.userInfoReadyCallback(res)
}
}
})
},
后臺:
jscode2session.php 獲取session_key
aes_data.php 使用session_key獲取unique_id(使用微信提供的加密解密方式)
jscode2session.php
<?php
include_once('config.php');
$code = trim($_POST['code']); //小程序端傳來的登陸code
$url = 'https://api.weixin.qq.com/sns/jscode2session?appid='.$appid.'&secret='.$secret.'&js_code='.$code.'&grant_type=authorization_code';
$r = curlN($url);
$r = json_decode($r,true);
$arr = array(
'ret' => 1,
'msg' => '操作成功',
'data' => array(
'user_info' => $r,
)
);
echo json_encode($arr);
function curlN($url,$data=null)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$tmpInfo = curl_exec($ch);
if (curl_errno($ch)) {
return curl_error($ch);
}
curl_close($ch);
return $tmpInfo;
}
?>
aes_data.php
<?php
include_once('config.php');
include_once('wxBizDataCrypt.php');
$appid = $appid;
$sessionKey = $_POST['sessionKey'];
$encryptedData = $_POST['encryptedData'];
$iv = $_POST['iv'];
$pc = new WXBizDataCrypt($appid, $sessionKey);
$errCode = $pc->decryptData($encryptedData, $iv, $data );
if ($errCode == 0) {
print($data . "\n");
} else {
print($errCode . "\n");
}
wxBizDataCrypt.php
<?php
/**
* 對微信小程序用戶加密數(shù)據(jù)的解密示例代碼.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
include_once "errorCode.php";
class WXBizDataCrypt
{
private $appid;
private $sessionKey;
/**
* 構造函數(shù)
* @param $sessionKey string 用戶在小程序登錄后獲取的會話密鑰
* @param $appid string 小程序的appid
*/
public function __construct( $appid, $sessionKey)
{
$this->sessionKey = $sessionKey;
$this->appid = $appid;
}
/**
* 檢驗數(shù)據(jù)的真實性,并且獲取解密后的明文.
* @param $encryptedData string 加密的用戶數(shù)據(jù)
* @param $iv string 與用戶數(shù)據(jù)一同返回的初始向量
* @param $data string 解密后的原文
*
* @return int 成功0,失敗返回對應的錯誤碼
*/
public function decryptData( $encryptedData, $iv, &$data )
{
if (strlen($this->sessionKey) != 24) {
return ErrorCode::$IllegalAesKey;
}
$aesKey=base64_decode($this->sessionKey);
if (strlen($iv) != 24) {
return ErrorCode::$IllegalIv;
}
$aesIV=base64_decode($iv);
$aesCipher=base64_decode($encryptedData);
$result=openssl_decrypt( $aesCipher, "AES-128-CBC", $aesKey, 1, $aesIV);
$dataObj=json_decode( $result );
if( $dataObj == NULL )
{
return ErrorCode::$IllegalBuffer;
}
if( $dataObj->watermark->appid != $this->appid )
{
return ErrorCode::$IllegalBuffer;
}
$data = $result;
return ErrorCode::$OK;
}
}
errorCode.php
<?php
/**
* error code 說明.
* <ul>
* <li>-41001: encodingAesKey 非法</li>
* <li>-41003: aes 解密失敗</li>
* <li>-41004: 解密后得到的buffer非法</li>
* <li>-41005: base64加密失敗</li>
* <li>-41016: base64解密失敗</li>
* </ul>
*/
class ErrorCode
{
public static $OK = 0;
public static $IllegalAesKey = -41001;
public static $IllegalIv = -41002;
public static $IllegalBuffer = -41003;
public static $DecodeBase64Error = -41004;
}
?>