/**
* 获取openid
*/
function getOpenId()
{
$code = $_GET['code'];
$state = $_GET['state'];
$appid = Wx_C('wx_appid');
$secret = Wx_C('wx_secret');
}
/**
* 微信通过code换取网页授权access_token并获取用户信息,登录
*/
function checkLogin($code)
{
if (empty($code)) {
getWxCode('snsapi_userinfo', U());
} else {
$code = trim($_GET['code']);
$state = trim($_GET['state']);
$appid = Wx_C('wx_appid');
$secret = Wx_C('wx_secret');
$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $appid . '&secret=' . $secret . '&code=' . $code . '&grant_type=authorization_code';
$info = json_decode(get_url($url));
$token = $info->access_token;
$openid = $dejson->openid;
$url = 'https://api.weixin.qq.com/sns/userinfo?access_token=' . $token . '&openid=' . $openid . '&lang=zh_CN';
$member = json_decode(get_url($url));
$data = array('openid' => $member->openid, 'member_name' => $member->nickname, 'gender' => $member->sex, 'city' => $member->city, 'province' => $member->province, 'avatar' => $member->headimgurl);
$where = array('openid' => $data['openid']);
$res = M('member')->where($where)->find();
if (!$res) {
M('member')->add($data);
} else {
M('member')->where($where)->save($data);
}
session('openid', $data['openid']);
}
}
public function wx_auto_login()
{
$code = trim($_GET['code']);
$state = trim($_GET['state']);
if ($code && $state) {
//通过code获取用户信息
$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . Wx_C('wx_appid') . '&secret=' . Wx_C('wx_secret') . '&code=' . $code . '&grant_type=authorization_code';
$info = json_decode(get_url($url));
$web_token = $info->access_token;
$refresh_token = $info->refresh_token;
$openid = $info->openid;
$unionid = $info->unionid;
//检查此用户是否已经注册过
$member_data = M('Member')->where('openid=\'' . $openid . '\'')->find();
if (is_array($member_data) && !empty($member_data)) {
//更新用户微信网页授权access_token
M('Member')->where('member_id=' . $member_data['member_id'])->save(array('web_token' => $web_token, 'refresh_token' => $refresh_token));
//授权
session('member_id', $member_data['member_id']);
} else {
//未关注
if ($state == 'STATEuserinfo') {
$get_userinfo_url = 'https://api.weixin.qq.com/sns/userinfo?access_token=' . $web_token . '&openid=' . $openid . '&lang=zh_CN';
$user = json_decode(get_url($get_userinfo_url));
} else {
//已关注
$access_token = get_wx_AccessToken(1);
$get_user_url = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token=' . $access_token . '&openid=' . $openid . '&lang=zh_CN';
$user = json_decode(get_url($get_user_url));
}
if ($user->nickname) {
$data = array();
$data['nickname'] = replaceEmoji($user->nickname);
//转义emoji
$data['openid'] = $user->openid;
$data['gender'] = $user->sex;
$data['country'] = $user->country;
$data['province'] = $user->province;
$data['city'] = $user->city;
$data['usercity'] = $user->city;
$data['avatar'] = $user->headimgurl;
$data['unionid'] = $user->unionid;
$data['web_token'] = $web_token;
$data['refresh_token'] = $refresh_token;
$data['register_time'] = NOW_TIME;
$return = M('Member')->add($data);
if ($return) {
session('member_id', $return);
}
}
}
} else {
$c_url = U('', $_GET, '', true);
//当前地址 ERROR:该地址没有生成当前地址的参数项 导致授权之后跳转页面没有传参 已解决:2015-6-27 17:35:58
$scope = 'snsapi_userinfo';
$re_url = urlencode($c_url);
$sq_url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . Wx_C('wx_appid') . '&redirect_uri=' . $re_url . '&response_type=code&scope=' . $scope . '&state=STATEuserinfo#wechat_redirect';
redirect($sq_url);
//get_url($sq_url);
}
}
function refresh_web_token($mid, $refresh_token)
{
$url = 'https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=' . Wx_C('wx_appid') . '&grant_type=refresh_token&refresh_token=' . $refresh_token;
$output = get_url($url);
$output = json_decode($output, true);
if ($output['errcode'] > 0) {
return false;
} else {
$data = array();
$data['web_token'] = $output['access_token'];
$data['refresh_token'] = $output['refresh_token'];
M('Member')->where('member_id=' . $mid)->save($data);
unset($data);
return $output;
}
}
/**
*
*/
function wx_key_url($url)
{
$scope = 'snsapi_userinfo';
$appId = Wx_C('wx_appid');
$redirect_uri = urlencode($url);
$response_type = 'code';
$state = time();
$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $appId . '&redirect_uri=' . $redirect_uri . '&response_type=' . $response_type . '&scope=' . $scope . '&state=' . $state . '#wechat_redirect';
return $url;
}
