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OAuth 流程与发展总结 (1.0 => 1.0a => 2.0)

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OAuth 流程与发展 (1.0 => 1.0a => 2.0) 概述概述: 开放授权协议作用: 允许第三方应用访问服务提供方中注册的终端用户的部分资源下面是官方描述: [OAuth描述] The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service, either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service, or by allowing the third-party application to obtain access on its own behalf. 参与者: Client (Consumer) => 第三方应用 Resource Owner(User) => 用户 Resource Server(Service Provider) => 资源服务提供方(OAuth2.0将服务提供方拆分为两部分) Authorization Server(Service Provider) => 授权服务提供方

How to generate unique random alphanumeric tokens in Golang?

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问题 For a RESTful backend API, I want to generate unique url tokens to be used to authenticate users. The unique data provided at registration to generate tokens are email addresses. But after generating tokens and sending that to the users, I don't need to decrypt received tokens to get email or other information. So the encryption can be one-way. Initially I used bcrypt to do so: func GenerateToken(email string) string { hash, err := bcrypt.GenerateFromPassword([]byte(email), bcrypt.DefaultCost

PHP实现微信扫码自动登陆与注册，参考实例

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微信开发已经是现在phper必须要掌握的一项基本的技术了,其实做过微信开发的都知道微信接口非常的强大做起来也非常的简单,这里我们一起来看一个微信自动登陆注册的例子. php 微信扫码 pc端自动登陆注册用的接口scope 是snsapi_userinfo, 微信登陆一个是网页授权登陆，另一个是微信联合登陆网页授权登陆: http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html 微信联合登陆： https://open.weixin.qq.com/cgi-bin/frame?t=home/web_tmpl&lang=zh_CN 一、首先把微信链接带个标识生成二维码比如链接为 https:// open.weixin.qq.com/conn ect/oauth2/authorize?appid= '.$appid.'&redirect_uri='.$url.'&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect' 我们可以在state上做文章，因为state你传入什么微信那边返回什么，可以作为服务器与微信段的一个标识: 1 public function creatqrAction(){ 2 if($_GET['app']

Authenticate websocket clients using tokens?

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I want to provide a websocket based Service to my registered users. The Website Frontend is running on Server A, the WebSocket-Service is running on Server B. I want to make sure that Server B won't grant acces to an user that is not authenticated by Server A. Also I want to avoid that a session can be hijacked. I came up with this approach but I never implemented security for websockets. Might this be a good approach?: When a client wants to connect with my WebSocket, Server A requests a token from Server B. The Server B will generate this Token and send it back to Server A. Server B will

is putting token in URL secure to prevent CSRF attacks in PHP applications?

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问题 I want to use a token to prevent CSRF attacks on my website (written with PHP). I've used it in forms and it works well. But logout link is not a form; It is only a hyperlink. Is it secure if I put the token in the query string like this: <a href="logout.php?token=9ae328eea8a72172a2426131a6a41adb">Logout</a> If it has any problem, what is your suggestions and solutions ? 回答1: I think one of main disadvantages of using CSRF-token in GET requests is possibility of incompetent user to easily

licode(1) Basic Example 客户端解析

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##1.整体在浏览其中输入https://dst_host_domain:13004后，请求了index.html,该文件在licode\extras\basic_example\public\index.html开始, 引入了erizo.js和script.js, testConnection() //licode\extras\basic_example\public\index.html <html> <head> <title>Licode Basic Example</title> <script type="text/javascript" src="erizo.js"></script> <script type="text/javascript" src="script.js"></script>//定义了windows.load </head> <body> <button id="startButton" onclick="startBasicExample()" disabled>Start</button> <button id="testConnection" onclick="testConnection()">Test Connection</button> <button id="recordButton" onclick=

angular2-jwt check if token is expired in component?

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Is it possible to check whether a id token is expired or not inside a component of angular 2 app? I got an AuthService with the method public isAuthenticated(): boolean { /* check if id_token is expired or not */ return tokenNotExpired(); } Used inside the template it works fine. If a user is signed out it returns false, after the user signed in angular change detection reruns the function in the template and it returns true. Used inside a component @Component({ selector: 'app', providers: [ Auth ], templateUrl: 'app.template.html' }) export class AppComponent implements OnInit { public

zblog php添加Token防止CSRF攻击

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CSRF全称Cross Site Request Forgery，即跨站点请求伪造，通过伪装成受信任用户的请求来利用受信任的网站。如果使用的zblog应用有通过cmd.php处理的链接，或提交数据，应该同时提交一个token参数。另外，您的应用如果有副作用，也务必需要加入CSRF Token。通过GET方法提交，如果您的目标地址是cmd.php，那么您可以使用以下函数： 1 <?php echo BuildSafeCmdURL('act=TagPst'); ?> 如果不是，那么您也可以直接 1 <?php echo BuildSafeURL('main.php'); ?> 通过POST方法提交，您可以在form表单内加入 1 echo '<input type="hidden" name="csrfToken" value="' . $zbp->GetCSRFToken() . '">'; 如果需要兼容旧版Z-BlogPHP，可以使用 1 <?php if (function_exists('CheckIsRefererValid')) {echo '<input type="hidden" name="csrfToken" value="' . $zbp->GetCSRFToken() . '">';}?> 如果您想在您的应用内集成CSRF Token检测

实验二递归下降语法分析

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一、实验目的：利用C语言编制递归下降分析程序,并对简单语言进行语法分析。编制一个递归下降分析程序,实现对词法分析程序所提供的单词序列的语法检查和结构分析。二、实验原理每个非终结符都对应一个子程序。该子程序根据下一个输入符号(SELECT集)来确定按照哪一个产生式进行处理，再根据该产生式的右端: 每遇到一个终结符，则判断当前读入的单词是否与该终结符相匹配，若匹配，再读取下一个单词继续分析；不匹配，则进行出错处理每遇到一个非终结符，则调用相应的子程序三、实验要求说明输入单词串，以“＃”结束，如果是文法正确的句子，则输出成功信息，打印“success”,否则输出“error”，并指出语法错误的类型及位置。例如：输入begin a:=9;x:=2*3;b:=a+x end # 输出success 输入x:=a+b*c end # 输出‘end' error 四、实验步骤 1．待分析的语言的语法（参考P90） 2．将其改为文法表示，至少包含 –语句 –条件 –表达式 3. 消除其左递归 4. 提取公共左因子 5. SELECT集计算 6. LL(1)文法判断 7. 递归下降分析程序 #include <stdio.h> #include <string.h> #include <stdlib.h> char prog[80]="begin a:=9;x:=2*3;b:=a

递归下降语法分析

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#include<stdio.h> #include<string.h> #include<stdlib.h> char prog[]="(a+b)*2",token[20]; char ch; int syn,p,m,n,sum; char *rwtab[6]={"begin","if","then","while","do","end" }; void E(); void T(); void E1(); void T1(); void F(); void error(); void scaner(){ m=0; for(n=0; n<8; n++) token[n]=NULL; ch=prog[p++]; while(ch==' ') ch=prog[p++]; if((ch>='a' && ch<='z') ||(ch>='A' && ch<='Z')) { while((ch>='a' && ch<='z') ||(ch>='A' && ch<='Z')||(ch>='0' && ch<='9')) { token[m++]=ch; ch=prog[p++]; } token[m++]='\0'; syn=10; p=p-1; //回退一个字符 for(n=0; n<6; n++) { if(strcmp(token,rwtab[n])==0) { syn=n+1;

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