【笔记】微信扫码登录详解 - 可做登录授权等

<?php

header('Access-Control-Allow-Origin:*');

header('Content-type:application/json; charset=utf-8');

error_reporting(0);

date_default_timezone_set("PRC");

!empty($_GET['type']) ? $type = $_GET['type'] : error("请求参数错误，请刷新重试！~~");

switch ($type)

{

   case 'Getqrcode':

       echo json_encode(getqrcode());

       break;

   case 'Getresult':

       !empty($_GET['qrsig']) ? $qrsig=$_GET['qrsig'] : error("请求参数错误，缺少qrsig~~");

       echo json_encode(getresult($qrsig),JSON_UNESCAPED_UNICODE);

       break;

   default:

       echo json_encode(getqrcode());

}

/**

* 获取二维码

*/

function getqrcode() {

   $api = 'https://login.wx2.qq.com/jslogin?appid=wx782c26e4c19acffb';

   $ret = get_curl($api);

   preg_match('/"(.*?)"/', $ret, $matches);

   $qrcode['data'] = 'https://login.weixin.qq.com/l/'.$matches[1];

   $qrcode['uuid'] = $matches[1];

   return $qrcode;

}

/**

* @param $qrsig

* @return array

* 获取登录状态

*/

function getresult($uuid) {

   $paras['ctime'] = 1000;

   $paras['rtime'] = 1000;

   $paras['refer'] = 'https://wx2.qq.com/';

   $api = 'https://login.wx2.qq.com/cgi-bin/mmwebwx-bin/login?loginicon=true&uuid=' . $uuid . '&tip=0';

   $body = get_curl($api, $paras);

   preg_match('/(d){3}/', $body, $code);

   preg_match('/redirect_uri="(.*?)"/', $body, $url);

   if ($code[0] == '200') {

       $body = get_curl($url[1]);

       preg_match('/<wxuin>(d*?)</wxuin>/', $body, $wxuin);

       $ret['code'] = 200;

       $ret['data']['uin'] = $wxuin[1];

       $ret['data']['type'] = 'wx';

       $ret['msg'] = '微信登录成功';

   } else {

       $ret['code'] = 408;

       $ret['msg'] = '请使用手机微信扫码登录';

   }

   return $ret;

}

function get_curl($url, $paras = array()) {

   $ch = curl_init();

   curl_setopt($ch, CURLOPT_URL, $url);

   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

   curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

   $httpheader[] = "Accept:*/*";

   $httpheader[] = "Accept-Encoding:gzip,deflate,sdch";

   $httpheader[] = "Accept-Language:zh-CN,zh;q=0.8";

   $httpheader[] = "Connection:close";

   curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheader);

   if ($paras['ctime']) { // 连接超时

       curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, $paras['ctime']);

   }

   if ($paras['rtime']) { // 读取超时

       curl_setopt($ch, CURLOPT_TIMEOUT_MS, $paras['rtime']);

   }

   if ($paras['post']) {

       curl_setopt($ch, CURLOPT_POST, 1);

       curl_setopt($ch, CURLOPT_POSTFIELDS, $paras['post']);

   }

   if ($paras['header']) {

       curl_setopt($ch, CURLOPT_HEADER, true);

   }

   if ($paras['cookie']) {

       curl_setopt($ch, CURLOPT_COOKIE, $paras['cookie']);

   }

   if ($paras['refer']) {

       if ($paras['refer'] == 1) {

           curl_setopt($ch, CURLOPT_REFERER, 'http://m.qzone.com/infocenter?g_f=');

       } else {

           curl_setopt($ch, CURLOPT_REFERER, $paras['refer']);

       }

   }

   if ($paras['ua']) {

       curl_setopt($ch, CURLOPT_USERAGENT, $paras['ua']);

   } else {

       curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36");

   }

   if ($paras['nobody']) {

       curl_setopt($ch, CURLOPT_NOBODY, 1);

   }

   curl_setopt($ch, CURLOPT_ENCODING, "gzip");

   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

   $ret = curl_exec($ch);

   curl_close($ch);

   return $ret;

}

function error($str){

   exit(json_encode([

       "code"=>-1,

       "msg"=>$str

   ],JSON_UNESCAPED_UNICODE));

}