在平时项目开发过程中,除了注册本网站账号进行登录之外,还可以调用第三方接口进行登录网站。这里以微博登录为例。微博登录包括身份认证、用户关系以及内容传播。允许用户使用微博帐号登录访问第三方网站,分享内容,同步信息。
1、首先需要引导需要授权的用户到如下地址:
https://api.weibo.com/oauth2/authorize?client_id=YOUR_CLIENT_ID&response_type=code&redirect_uri=YOUR_REGISTERED_REDIRECT_URI
如果用户同意授权,页面跳转至 YOUR_REGISTERED_REDIRECT_URI/?code=CODE:
2、接下来要根据上面得到的code来换取Access Token:
https://api.weibo.com/oauth2/access_token?client_id=YOUR_CLIENT_ID&client_secret=YOUR_CLIENT_SECRET&grant_type=authorization_code&redirect_uri=YOUR_REGISTERED_REDIRECT_URI&code=CODE
返回值:
JSON
{
"access_token": "SlAV32hkKG",
"remind_in": 3600,
"expires_in": 3600
}
3、最后,使用获得的OAuth2.0 Access Token调用API,获取用户身份,完成用户的登录。
话不多说,直接上代码:
为了方便,我们先将get和post封装到application下的common.php中:
应用公共文件common.php:
function get( $url, $_header = NULL )
{
$curl = curl_init();
//curl_setopt ( $curl, CURLOPT_SAFE_UPLOAD, false);
if( stripos($url, 'https://') !==FALSE )
{
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
}
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
if ( $_header != NULL )
{
curl_setopt($curl, CURLOPT_HTTPHEADER, $_header);
}
$ret = curl_exec($curl);
$info = curl_getinfo($curl);
curl_close($curl);
if( intval( $info["http_code"] ) == 200 )
{
return $ret;
}
return false;
}
/*
* post method
*/
function post( $url, $param )
{
$oCurl = curl_init ();
curl_setopt ( $oCurl, CURLOPT_SAFE_UPLOAD, false);
if (stripos ( $url, "https://" ) !== FALSE) {
curl_setopt ( $oCurl, CURLOPT_SSL_VERIFYPEER, FALSE );
curl_setopt ( $oCurl, CURLOPT_SSL_VERIFYHOST, false );
}
curl_setopt ( $oCurl, CURLOPT_URL, $url );
curl_setopt ( $oCurl, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt ( $oCurl, CURLOPT_POST, true );
curl_setopt ( $oCurl, CURLOPT_POSTFIELDS, $param );
$sContent = curl_exec ( $oCurl );
$aStatus = curl_getinfo ( $oCurl );
curl_close ( $oCurl );
if (intval ( $aStatus ["http_code"] ) == 200) {
return $sContent;
} else {
return false;
}
}
控制器处理代码Login.php:
class Login extends \think\Controller
{
public function index()
{
$key = "****";
$redirect_uri = "***微博应用安全域名***/?backurl=***项目本地域名***/home/login/webLogin?";
//授权后将页面重定向到本地项目
$redirect_uri = urlencode($redirect_uri);
$wb_url = "https://api.weibo.com/oauth2/authorize?client_id={$key}&response_type=code&redirect_uri={$redirect_uri}";
$this -> assign('wb_url',$wb_url);
return view('login');
}
public function webLogin(){
$key = "*****";
//接收code值
$code = input('get.code');
//换取Access Token: post方式请求 替换参数: client_id, client_secret,redirect_uri, code
$secret = "********";
$redirect_uri = "********";
$url = "https://api.weibo.com/oauth2/access_token?client_id={$key}&client_secret={$secret}&grant_type=authorization_code&redirect_uri={$redirect_uri}&code={$code}";
$token = post($url, array());
$token = json_decode($token, true);
//获取用户信息 : get方法,替换参数: access_token, uid
$url = "https://api.weibo.com/2/users/show.json?access_token={$token['access_token']}&uid={$token['uid']}";
$info = get($url);
if($info){
echo "<p>登录成功</p>";
}
}
}
模板代码login.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>微博登录</title>
</head>
<body>
<a href="{$wb_url}" rel="external nofollow" >点击这里进行微博登录</a>
</body>
</html>
效果图:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。