Realization method of automatic login for micro-scan Code website

Magento Micro-Scan code website automatic Login

The case modeled on the micro-letter joint landing approach, micro-letter joint Landing Introduction:

https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&lang= Zh_cn

After viewing the authorization interface Call (Unionid), it is not difficult to find out the callback address, the user confirmed the landing PC can jump

Get Unionid method

Public Function wcallbackaction () {

$code = $_get[' code '];
$state = $_get[' state '];
$setting = include Config_path. ' setting.php ';
$appid = $setting [' Weixin '] [' AppID '];
$appsecret = $setting [' Weixin '] [' Appsecret '];

if (empty ($code)) $this->showmessage (' authorization failed ');
try{

$token _url = ' https://api.weixin.qq.com/sns/oauth2/access_token?appid= '. $appid. ' &secret= '. $appsecret. ' &code= '. $code. ' &grant_type=authorization_code ';

$token = Json_decode ($this->https_request ($token _url));

}catch (Exception $e)
{
Print_r ($e);
}

if (Isset ($token->errcode)) {
Echo ' Echo ' <br/>Exit
}

$access _token_url = ' https://api.weixin.qq.com/sns/oauth2/refresh_token?appid= '. $appid. ' &grant_type=refresh_token&refresh_token= '. $token->refresh_token;
Turn into an object
$access _token = Json_decode ($this->https_request ($access _token_url));
if (Isset ($access _token->errcode)) {
Echo ' Echo ' <br/>Exit
}
$user _info_url = ' https://api.weixin.qq.com/sns/userinfo?access_token= '. $access _token->access_token. ' &openid= '. $access _token->openid. ' &AMP;LANG=ZH_CN ';
Turn into an object
$user _info = Json_decode ($this->https_request ($user _info_url));
if (Isset ($user _info->errcode)) {
Echo ' Echo ' <br/>Exit
}
Print user Information
Echo ' <pre> ';
Print_r ($user _info);
Echo ' </pre> ';

Get Unionid

$uid = $user _info->unionid;

}

User action processing is divided into login again and the first time landing

$sql = "Select h_user_id from dtb_user_binded as T1 left join Dtb_user_weixin as T2 on t1.u_id=t2.id where t1.u_type= '".
User:: $arrUtype [' weixin_num_t ']. "' and t2.openid= ' $user _info->unionid '";
$h _user_id = Core_db::getone ($sql);
if (!empty ($h _user_id)) {//The Weixin number is logged in again

}{//the Weixin for the first time,

}

PHP micro-Scan Code PC-side Automatic login Registration

The interface scope is snsapi_userinfo, the micro-letter landing one is the Web page authorization landing, the other is the micro-letter joint landing

Web page Authorization Login: http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html

Micro-letter joint landing: Https://open.weixin.qq.com/cgi-bin/frame?t=home/web_tmpl&lang=zh_CN

First: The micro-letter link with a logo to generate a two-dimensional code

For example, the link is https://open.weixin.qq.com/connect/oauth2/authorize?appid= '. $appid. ' &redirect_uri= '. $url. ' &response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect ' We can make a fuss over the state, Because of the state, what kind of micro-trust you're going to return?

Can be used as an identifier for a server and a micro-segment

Public Function creatqraction () {

if ($_get[' app ']) {
$wtoken =$_cookie[' Wtoken '];
$postdata =$_session[' w_state '];
if ($wtoken) {
$postdata = $wtoken;
}
<span style= "color: #3366ff;" >include Config_path. ' phpqrcode/'. ' Phpqrcode.php ';</span>
$sh = $this-&gt;shar1 ();
$value = "Https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx138697ef383a9167&amp;redirect_uri=http ://www.xxx.net/login/wcallback&amp;response_type=code&amp;scope=snsapi_userinfo&amp;state= ". $ PostData. " &amp;connect_redirect=1#wechat_redirect ";

$errorCorrectionLevel = "L";

$matrixPointSize = "5";

QRCode::p ng ($value, False, $errorCorrectionLevel, $matrixPointSize);
}

}

Two-dimensional code is generated at this time the state is the identity, Phpqrcode can be downloaded at the end of the article, so we set the callback address Http://www.xxx.net/login/wcallback

You can handle the data in the Wcallback method insert user generation session, jump landing, PC can set a few seconds Ajax request server, once acquired

State, that is, implementation of the adjustment, micro-trust in the browser can be closed after processing, micro-letter JS can be achieved

Document.addeventlistener (' Weixinjsbridgeready ', function Onbridgeready () {
Weixinjsbridge.call (' CloseWindow ');

}, False);

can also authorize the landing to jump to the micro-mail Service number attention page

Header ("location:weixin://profile/gh_a5e1959f9a4e");

Wcallback method to do processing landing

$code = $_get[' code '];
$state = $_get[' state '];
$setting = include Config_path. ' setting.php ';
$appid = $setting [' Weixin '] [' AppID '];
$appsecret = $setting [' Weixin '] [' Appsecret '];

if (empty ($code)) $this->showmessage (' authorization failed ');
try{

$token _url = ' https://api.weixin.qq.com/sns/oauth2/access_token?appid= '. $appid. ' &secret= '. $appsecret. ' &code= '. $code. ' &grant_type=authorization_code ';

$token = Json_decode ($this->https_request ($token _url));

}catch (Exception $e)
{
Print_r ($e);
}

if (Isset ($token->errcode)) {
Echo ' Echo ' <br/>Exit
}

$access _token_url = ' https://api.weixin.qq.com/sns/oauth2/refresh_token?appid= '. $appid. ' &grant_type=refresh_token&refresh_token= '. $token->refresh_token;
//Convert to Object
$access _token = Json_decode ($this->https_request ($access _token_url));
if (Isset ($access _ Token->errcode)) {
echo ' Echo ' <br/>

Exit;
}
$user _info_url = ' https://api.weixin.qq.com/sns/userinfo?access_token= '. $access _token->access_token. ' &openid= '. $access _token->openid. ' &LANG=ZH_CN ';
//Convert to Object
$user _info = Json_decode ($this->https_request ($user _info_url));
If Isset ($user _info-> Errcode) {
echo ' Echo ' <br/> Exit;
}
//print user information
//echo ' <pre> ';
//Print_r ($user _info);
//Echo ' </pre> ';