Creating the user model
First of all, we need to define the model that is going to be used to represent the
users of our application. Laravel already provides you with sensible defaults inside
app/config/auth.php, where you change the model or table that is used to store
your user accounts.

It also comes with an existing User model inside app/models/User.php. For the
purposes of this application, we are going to simplify it slightly, remove certain
class variables, and add new methods so that it can interact with the Cat model:

use Illuminate\Auth\UserInterface;

class User extends Eloquent implements UserInterface {

public function getAuthIdentifier() {

return $this->getKey();

}

public function getAuthPassword() {

return $this->password;

}

public function cats(){

return $this->hasMany('Cat');

}

public function owns(Cat $cat){

return $this->id == $cat->owner;

}

public function canEdit(Cat $cat){

return $this->is_admin or $this->owns($cat);

}

}

Remember that an interface does not give any implementation details. It is nothing
more than a contract that specifies the names of the methods that a class should
define when it implements the interface, in this case, getAuthIdentifier()
and getAuthPassword(). These methods are used internally by Laravel when
authenticating a user. The next method, cats(), simply defines the has many
relationship with the Cat model. The last two methods will be used to check
whether a given Cat instance is owned or editable by the current User instance.

Creating the necessary database schema
Now that we have defined a User model, we need to create the database schema
for it and alter the existing cats table to add information about the owner. Start by
creating a new migration:

$ php artisan migrate:make create_users
And then define the up method with the necessary database columns:

Authentication routes and views
Let's now look at the new routes and views. We will start by making some amends to
the master layout (app/views/master.blade.php) to display the login link to guests
and the logout link to users who are logged in. To check whether a visitor is logged
in, we use the Auth::check() method:

<div class="container">

<div class="page-header">

<div class="text-right">

@if(Auth::check())

Logged in as

<strong>{{{Auth::user()->username}}}</strong>

{{link_to('logout', 'Log Out')}}

@else

{{link_to('login', 'Log In')}}

@endif

</div>

@yield('header')

</div>

@if(Session::has('message'))

<div class="alert alert-success">

{{Session::get('message')}}

</div>

@endif

@if(Session::has('error'))

<div class="alert alert-warning">

{{Session::get('error')}}

</div>

@endif

@yield('content')

</div>

This code replaces the contents of the <body> tag in our previous template file.
A section for any error messages was also included below the header.
The route to display this login form could not be easier:
Route::get('login', function(){
return View::make('login');
});
If you were curious as to where and why Laravel uses the make methods
in various places, it is only there to maintain PHP 5.3 compatibility, which
does not support class member access on instantiation, and therefore, does
not let you write return new View('login');.

The route that handles login attempts will simply pass the username and password
input values to the Auth::attempt method. When this method returns true, we
simply redirect the visitor to the intended location. If this fails, we redirect the user
back to where he came from with Redirect::back() with the input values and an
error message.
Route::post('login', function(){
if(Auth::attempt(Input::only('username', 'password'))) {
return Redirect::intended('/');
} else {
return Redirect::back()
->withInput()
->with('error', "Invalid credentials");
}
});

But how does Laravel know what our intended location was? If you open
app/filters.php and look at the auth filter, you will see that it redirects guests
to the login route with the Redirect::guest() method. This method stores the
requested path in a session variable, which is then used by the intended() method.
The parameter passed to this method is the fallback route to which users should be
redirected if there is no request path in the session information.
Note also that there is a filter called guest that does the opposite of
auth; you could use it on the login route if you wanted to prevent
logged-in users from accessing it. With this filter in place, logged-in users
will be redirected to the home page instead. You can change this behavior
inside app/filters.php.

laravel Authentication and Security的更多相关文章

  1. [PHP] 浅谈 Laravel Authentication 的 auth:api

    auth:api 在 Laravel 的 Routing , Middleware , API Authentication 主题中都有出现. 一. 在 Routing 部分可以知道 auth:api ...

  2. [PHP] 浅谈 Laravel Authentication 的 guards 与 providers

    从文档的简单介绍上来讲,有一些抽象. 个人感觉,对于概念上的大多数不理解主要还是来自于 文档不是讲设计思路,而是实际操作. 查看英文文档,通常来说可以给你最准确的直觉,而本地翻译一般比较字面或者带有理 ...

  3. [转]The NTLM Authentication Protocol and Security Support Provider

    本文转自:http://davenport.sourceforge.net/ntlm.html#ntlmHttpAuthentication The NTLM Authentication Proto ...

  4. [不错]A step-by-step guide to enabling security, TLS/SSL, and PKI authentication in Elasticsearch

    Now posted on the Elastic blog December 12, 2018 update: This article has been published on Elastic’ ...

  5. How-to: Enable User Authentication and Authorization in Apache HBase

    With the default Apache HBase configuration, everyone is allowed to read from and write to all table ...

  6. 【Spring】关于Boot应用中集成Spring Security你必须了解的那些事

    Spring Security Spring Security是Spring社区的一个顶级项目,也是Spring Boot官方推荐使用的Security框架.除了常规的Authentication和A ...

  7. HttpClient(4.3.5) - HTTP Authentication

    HttpClient provides full support for authentication schemes defined by the HTTP standard specificati ...

  8. cloud computing platform,virtual authentication encryption

    Distributed Management Task Forcevirtual Ethernet port aggregator encryption,authenticating,local ac ...

  9. 一个HTTP Basic Authentication引发的异常

    这几天在做一个功能,其实很简单.就是调用几个外部的API,返回数据后进行组装然后成为新的接口.其中一个API是一个很奇葩的API,虽然是基于HTTP的,但既没有基于SOAP规范,也不是Restful风 ...

随机推荐

  1. 《Spring3.0就这么简单》

    第一章 认识Spring 1.Spring提供的IOC容器,是Spring大杀器之一.容器将对象之间的依赖关系交给Spring进行控制,采用配制的方式对依赖关系进行描述,由Ioc容器负责依赖类之间的创 ...

  2. input内容改变触发事件，兼容IE

    <html> <head> <script type="text/javascript"> window.onload = function() ...

  3. Java抓取网页数据

    http://ayang1588.github.io/blog/2013/04/08/catchdata/ 最近处于离职状态,正赶清闲,开始着手自己的毕业设计,课题定的是JavaWeb购物平台,打算用 ...

  4. [DevExpress]RepositoryItemComboBox 数据绑定

    关键代码: public static void Bind<T>(this RepositoryItemComboBox combox, ICollection source) { /*说 ...

  5. SQL Server 2008 R2密钥序列号

    SQL Server 2008 R2密钥序列号 序列号: 开发版(Developer): PTTFM-X467G-P7RH2-3Q6CG-4DMYB 企业版(Enterprise): JD8Y6-HQ ...

  6. Spark Streaming揭秘 Day19 架构设计和运行机制

    Spark Streaming揭秘 Day19 架构设计和运行机制 今天主要讨论一些SparkStreaming设计的关键点,也算做个小结. DStream设计 首先我们可以进行一个简单的理解:DSt ...

  7. linux 输入子系统（2）----简单实例分析系统结构（input_dev层）

    实例代码如下: #include <linux/input.h> #include <linux/module.h> #include <linux/init.h> ...

  8. "!x++" 我之见解

    "!x++"之说,各人见解不同,但真理只有一个.我只尝试着说出一种见解,未知真相. 何如? "!x++"等价于"!(x++)". 理论分析 ...

  9. EXTJS 4.2 添加滚动条

    bodyStyle: 'overflow-x:hidden; overflow-y:scroll',//显示滚动 文章来源:http://www.cnblogs.com/exmyth/archive/ ...

  10. 【单例模式】单例模式 & GCD单例模式 & 将封装单例模式到宏

    懒汉式单例模式 下面的代码块, 基本是单例模式的完整版本了. 可扩展的地方,可以在init方法中作扩展. // static 在全局变量的作用域仅限于当前文件内部 static id _instanc ...