本文实例讲述了Yii2中OAuth扩展及QQ互联登录实现方法。分享给大家供大家参考，具体如下：
复制代码 代码如下:php composer.phar require --prefer-dist yiisoft/yii2-authclient "*"

Quick start 快速开始

更改Yii2的配置文件config/main.php，在components中增加如下内容

"components" => [
 "authClientCollection" => [
 "class" => "yiiauthclientCollection",
 "clients" => [
  "google" => [
  "class" => "yiiauthclientclientsGoogleOpenId"
  ],
  "facebook" => [
  "class" => "yiiauthclientclientsFacebook",
  "clientId" => "facebook_client_id",
  "clientSecret" => "facebook_client_secret",
  ],
 ],
 ]
 ...
]

更改入口文件，一般是app/controllers/SiteController.php，在function actions增加代码，同时增加回调函数successCallback，大致如下

class SiteController extends Controller
{
 public function actions()
 {
 return [
  "auth" => [
  "class" => "yiiauthclientAuthAction",
  "successCallback" => [$this, "successCallback"],
  ],
 ]
 }
 public function successCallback($client)
 {
 $attributes = $client->getUserAttributes();
 // user login or signup comes here
 }
}

在登录的Views中，增加如下代码

<?= yiiauthclientwidgetsAuthChoice::widget([
 "baseAuthUrl" => ["site/auth"]
])?>

以上是官方的说明文档，下面我们来接入QQ互联

增加QQ登录的组件 我这里是放在 common/components/QqOAuth.php 中，源代码如下

<?php
namespace commoncomponents;
use yiiauthclientOAuth2;
use yiiaseException;
use yiihelpersJson;
/**
 *
 * ~~~
 * "components" => [
 * "authClientCollection" => [
 *  "class" => "yiiauthclientCollection",
 *  "clients" => [
 *  "qq" => [
 *   "class" => "commoncomponentsQqOAuth",
 *   "clientId" => "qq_client_id",
 *   "clientSecret" => "qq_client_secret",
 *  ],
 *  ],
 * ]
 * ...
 * ]
 * ~~~
 *
 * @see http://connect.qq.com/
 *
 * @author easypao <admin@easypao.com>
 * @since 2.0
 */
class QqOAuth extends OAuth2
{
 public $authUrl = "https://graph.qq.com/oauth2.0/authorize";
 public $tokenUrl = "https://graph.qq.com/oauth2.0/token";
 public $apiBaseUrl = "https://graph.qq.com";
 public function init()
 {
 parent::init();
 if ($this->scope === null) {
  $this->scope = implode(",", [
  "get_user_info",
  ]);
 }
 }
 protected function initUserAttributes()
 {
 $openid = $this->api("oauth2.0/me", "GET");
 $qquser = $this->api("user/get_user_info", "GET", ["oauth_consumer_key"=>$openid["client_id"], "openid"=>$openid["openid"]]);
 $qquser["openid"]=$openid["openid"];
 return $qquser;
 }
 protected function defaultName()
 {
 return "qq";
 }
 protected function defaultTitle()
 {
 return "Qq";
 }
 /**
 * 该扩展初始的处理方法似乎QQ互联不能用，应此改写了方法
 * @see yiiauthclientBaseOAuth::processResponse()
 */
 protected function processResponse($rawResponse, $contentType = self::CONTENT_TYPE_AUTO)
 {
   if (empty($rawResponse)) {
     return [];
   }
   switch ($contentType) {
     case self::CONTENT_TYPE_AUTO: {
       $contentType = $this->determineContentTypeByRaw($rawResponse);
       if ($contentType == self::CONTENT_TYPE_AUTO) {
   //以下代码是特别针对QQ互联登录的，也是与原方法不一样的地方 
         if(strpos($rawResponse, "callback") !== false){
           $lpos = strpos($rawResponse, "(");
           $rpos = strrpos($rawResponse, ")");
           $rawResponse = substr($rawResponse, $lpos + 1, $rpos - $lpos -1);
           $response = $this->processResponse($rawResponse, self::CONTENT_TYPE_JSON);
           break;
         }
   //代码添加结束
         throw new Exception("Unable to determine response content type automatically.");
       }
       $response = $this->processResponse($rawResponse, $contentType);
       break;
     }
     case self::CONTENT_TYPE_JSON: {
       $response = Json::decode($rawResponse, true);
       if (isset($response["error"])) {
         throw new Exception("Response error: " . $response["error"]);
       }
       break;
     }
     case self::CONTENT_TYPE_URLENCODED: {
       $response = [];
       parse_str($rawResponse, $response);
       break;
     }
     case self::CONTENT_TYPE_XML: {
       $response = $this->convertXmlToArray($rawResponse);
       break;
     }
     default: {
       throw new Exception("Unknown response type "" . $contentType . "".");
     }
   }
   return $response;
 }
}

更改 config/main.php 文件，在components中增加，大致如下

"components" => [
 "authClientCollection" => [
   "class" => "yiiauthclientCollection",
   "clients" => [
     "qq" => [
      "class"=>"commoncomponentsQqOAuth",
      "clientId"=>"your_qq_clientid",
      "clientSecret"=>"your_qq_secret"
    ],
   ],
 ]
]

SiteController.php 就按官方那样子

public function successCallback($client)
{
 $attributes = $client->getUserAttributes();
 // 用户的信息在$attributes中，以下是您根据您的实际情况增加的代码
 // 如果您同时有QQ互联登录，新浪微博等，可以通过 $client->id 来区别。
}

最后在登录的视图文件中 增加QQ登录链接

<a href="/site/auth?authclient=qq">使用QQ快速登录</a>

PS:小编在这里推荐一款本站的php格式化美化的排版工具帮助大家在以后的PHP程序设计中进行代码排版：
 
php代码在线格式化美化工具：http://tools.jb51.net/code/phpformat

更多关于Yii相关内容感兴趣的读者可查看本站专题：《Yii框架入门及常用技巧总结》、《php优秀开发框架总结》、《smarty模板入门基础教程》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

希望本文所述对大家基于Yii框架的PHP程序设计有所帮助。