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Case sharing on the implementation of QQ third-party login function in TP5 practical project
Case sharing on the implementation of QQ third-party login function in TP5 practical project
Recently I used the thinkPHP 5 framework to make a bridal shop project. During the development process, a third-party login was required. The official case provided by Tencent was implemented by several files that included each other. When placed in tp5, it was very sad to find that in The expected functions cannot be completed through include or require in the controller. If you want to use Tencent’s officially sealed classes, you must modify them as follows:
1. Find the core in the official SDK File
When used outside the framework, it is include 'qqConnectAPI.php'. When you open this file, you can see that it contains If you have several other files, the files in the comm folder are nothing more than defining some constants and recording your APP KEY information. It doesn’t matter. Just put the several class files in the class folder into tp5. Okay, and if you look at the code carefully, you will find that you can actually implement the function as long as you get three classes.
2. Put it in the tp framework
tp5 recommends putting third-party things that are not installed by composer into the extend directory. Next, because we may need to make other extensions in the future, here we will create a separate qqlogin folder related to qq login.
You can see that there are only three categories in it, I will remove them I have created a Recorder and an ErrorCase class. As the names suggest, the function of these two is to record some information, such as access_token, and exception handling. I will delete them directly here. Also note that according to the psr4 specification, the class name must be consistent with the file name, so you need to change the file name and add the namespace extend\qqlogin, tp5 All classes must have namespaces .
In addition, in order to prevent tp5 from finding the files we need, it is best to register a root namespace in the config.php file, on line 30:
// 注册的根命名空间 'root_namespace' => [ 'extend\qqlogin' => '../extend/qqlogin/', 'extend\baidu' => '../extend/bdlogin/' ],
3. Transform the source code
Because QC.php inherits Oauth.php, we will change it from the latter, remove require_once, and add the namespace. I won’t go into this. First, look at Member attributes and class constants are the address of the Tencent platform. Don't worry about it. There are three attributes. Recorder and error are not needed. Comment them out or delete them directly. The same is true below. You should imagine that you have a grudge against these two words, and comment or delete them when you see them.
// protected $recorder; public $urlUtils; // protected $error; public $state; public $appid = "****"; public $callback = "http://****/index/user/qqcallback"; public $scope = "get_user_info";
The following four attributes need to be added. State is used to prevent CSRF attacks. You can know what the following three are by looking at the official documents. These are originally stored in inc.php under the comm folder. , now take it directly and turn it into a member attribute.
Then construct the function and instantiate three classes. Two of them no longer exist, and as mentioned above, there is a grudge against these two words. Comment or delete them when you see them.
Look at the first member method belowqq_login()
public function qq_login(){
$appid = $this->recorder->readInc("appid");
$callback = $this->recorder->readInc("callback");
$scope = $this->recorder->readInc("scope");
//---生成唯一随机串防CSRF攻击
$state = md5(uniqid(rand(), TRUE));
$this->recorder->write('state',$state);
*
*
return $login_url;
// header("Location:$login_url");
}We have already deleted the lines with those two words, we If you need these things again, don't forget that we added three member attributes above. We already have these values and use them below. Just pass $this->appid. When verifying the state, we can verify it through the session. TP5 provides an assistant function to write the session:
session('state',$this->state);
The last sentence is the header jump. I don’t know why the jump cannot be seen in TP5. The effect is that the url is returned directly, and then the redirection function $this->redirect() is implemented in the controller through the redirection function of tp5.
Look at qq_callback()
public function qq_callback(){
// $state = $this->recorder->read("state");
//---验证state防止CSRF攻击
if(input('state') != session('state')){
// $this->error("30001");
exit('30001');
}
*
*
// return $params["access_token"];
session('access_token',$params["access_token"]);
}The two words that appear have been commented. We have written session in qq_login. Just compare it directly with sessio. Input() is also tp5 The helper function can obtain the parameters of get and post requests. The result is an array, but key-value pairs cannot be added dynamically. If you want to add it, you must assign it to a variable and then operate the variable. If there is an error here, exit directly and print out the error number. The official document has detailed error number descriptions. At the end, the access_token obtained is directly written into the session.
The following get_openid() method is similar. The parameter list is constructed with session, and the return value is written directly into the session.
Then modify QC.php, just modify the construction method and give values to the three variables of the array.
$this->keysArr = array( "oauth_consumer_key" => (int)$this->appid, "access_token" => session('access_token'), "openid" => session('openid') );
4. Controller call
The transformation is completed and can be used in the controller. Attached is the code below:
use extend\qqlogin\QC;
// 处理qq登录
public function qqlogin()
{
$qq = new QC();
$url = $qq->qq_login();
$this->redirect($url);
}
// qq登录回调函数
public function qqcallback(UserModel $user)
{
$qq = new QC();
$qq->qq_callback();
$qq->get_openid();
$qq = new QC();
$datas = $qq->get_user_info();
* // 拿到用户信息后的处理
*
}Easy to forget:
In the callback function, QC must be instantiated twice to get the user information, and only during the second instantiationopenid and access_token two parameters.
The above is the detailed content of Case sharing on the implementation of QQ third-party login function in TP5 practical project. For more information, please follow other related articles on the PHP Chinese website!
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