interceptor | 易学教程

Intercept and retry call by means of OkHttp Interceptors

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问题 I need to retry request inside of OkHttp Interceptor . For example there is incoming request which needs Authorization token. If Authorization token is expired, server returns response with 403 code. In this case I am retrieving a new token and trying to make call again by using the same chain object. But OkHttp throws an exception, which states that you cannot make two requests with the same chain object. java.lang.IllegalStateException: network interceptor org.app.api.modules

ProxyStrike

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ProxyStrike Package Description ProxyStrike is an active Web Application Proxy. It’s a tool designed to find vulnerabilities while browsing an application. It was created because the problems we faced in the pentests of web applications that depends heavily on Javascript, not many web scanners did it good in this stage, so we came with this proxy. Right now it has available Sql injection and XSS plugins. Both plugins are designed to catch as many vulnerabilities as we can, it’s that why the SQL Injection plugin is a Python port of the great DarkRaver “Sqlibf”. The process is very simple,

How to change body in OkHttp Response?

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问题 I'm using retrofit. To catch response i'm using Interceptor: OkHttpClient okHttpClient = new OkHttpClient(); okHttpClient.interceptors().add(myinterceptor); here is code of interceptor: new Interceptor() { @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request(); Response response = chain.proceed(request); if (path.equals("/user")){ String stringJson = response.body().string(); JSONObject jsonObject = new JSONObject(stringJson); jsonObject.put(

Filters vs Interceptors in Struts 2

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问题 What's the difference, really, between filters and interceptors? I realize that interceptors fire before and after an action, recursively, and filters can be configured to fire on actions and on certain url patterns. But how do you know when to use each one? In the book I'm reading on Struts 2, it seems that interceptors are being pushed and I even followed a tutorial to write an Authentication Interceptor to make sure a user is logged in. However, if the user tries to access a URL that doesn

CDI: Using Interceptors across different modules / bean archives

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My Java EE 6 application consists of a war and an ejb module packaged in ear file. I'm using CDI for DI (i.e. I have a beans.xml file in both modules). I want to use a logging interceptor that is defined in the ejb module in the war module, as well. I've enabled the interceptor in the ejb's beans.xml: <beans> <interceptors> <class>com.test.interceptor.LoggingInterceptor</class> </interceptors> </beans> This is working only for the classes that are annotated with the interceptor in the ejb module . Classes in war module are not intercepted (although they're annotated with the interceptor too).

How can I send request again in response interceptor?

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问题 I've made an interceptor in my application that detects session loss (server sends an HTTP 419). In this case, I need to request a new session from the server, and then I would like to send the original request again automatically. Maybe I could save the request in a request interceptor, and then send it again, but there might be a simpler solution. Note that I have to use a specific webservice to create the session. angular.module('myapp', [ 'ngResource' ]).factory( 'MyInterceptor', function

angularjs http interceptor class (ES6) loses binding to 'this'

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I am building and AngularJS app using ES6 classes with traceur transpiling to ES5 in AMD format. in my module I import the interceptor class and register it as a service, and then register this service with the $httpProvider.interceptors in module.config: var commonModule = angular.module(moduleName, [constants.name]); import authenticationInterceptor from './authentication/authentication.interceptor'; commonModule.service('authenticationInterceptor', authenticationInterceptor); commonModule.config( $httpProvider => { $httpProvider.interceptors.push('authenticationInterceptor'); }); My

What are Interceptors in Java EE?

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问题 I'm trying to clear my concept about Interceptors in Java EE. I have read Java EE specification but I'm little confused about it. Please provide me some useful link or tutorial which could clear my concept. How, When, Why do we use interceptors? 回答1: Interceptors are used to implement cross-cutting concerns, such as logging, auditing, and security, from the business logic. In Java EE 5, Interceptors were allowed only on EJBs. In Java EE 6, Interceptors became a new specification of its own,

Spring mvc 3 : How to get path variable in an interceptor?

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In Spring MVC controller, I can get path variable using @PathVariable to get the value of a variable defined in @RequestMapping. How can I get the value of the variable in an interceptor? Thank you very much! The thread linked to by Pao worked a treat for me In the preHandle() method you can extract the various PathVariables by running the following code Map pathVariables = (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE); There is a thread in the Spring forums, where someone says, there is no "easy way", so i suppose you would have to parse the URL to get it. Almost

Redirect to another action in an interceptor in struts 2

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I am currently in the process of learning Struts 2 and I am currently building a simple application where unverified users are redirected to a login form. I have a login form and action functional which takes the users credentials, verifies them and stores a User object in the session however I am now trying to prevent access to pages before the login has taken place and I am trying to do this with an interceptor. My problem is that I have written an interceptor that checks whether the User object has been saved in the session but if it has not I want to redirect to the login page and can't