扭曲的http客户端 [英] twisted http client

问题描述

我正在描述Twisted的HTTP客户端的使用示例。

I am after an example describing the usage of Twisted's HTTP Client.

阅读优秀的关于内幕的博文Twisted ，我理解工厂和协议组件如何发挥作用，但我不清楚如何在整个客户流程中引入请求。

After reading the excellent blog post on the internals of Twisted, I understand how the "Factory" and "Protocol" components play their role but I am unclear on how to introduce "Request" in the overall Client flow.

更具体地说，我需要能够使用Twisted对远程服务器执行HTTP GET和POST请求。

More specifically, I need to be able to perform HTTP GET and POST requests to a remote server using Twisted.

更新：在讨论了irc #twisted / #python之后，似乎 twisted.web2 正逐渐消失，有利于增强 twisted.web <上的功能/ code>例如代理。

Updated: after a discussion on irc #twisted / #python, it seems that twisted.web2 is fading away in favor of beefing up functionality on twisted.web e.g. Agent.

推荐答案

从Twisted 9.0开始，实际上有两个HTTP客户端可用。旧版本具有相当多的功能，例如自动跟踪重定向，解释cookie标题等。您可以在此处找到其用法的示例：

As of Twisted 9.0, there are actually two HTTP clients available. The older one has quite a few features, such as automatically following redirects, interpreting cookie headers, etc. You can find an example of its usage here:

http://twistedmatrix.com/documents/current/web/examples/

（ getpage.py 和 dlpage.py ）

不幸的是，旧客户端提供的界面使许多常见任务变得困难。例如，使用 getPage ，您无法检查任意响应标头。

Unfortunately, the interface presented by the older client makes a number of common tasks difficult. For example, using getPage, you cannot examine arbitrary response headers.

较新的HTTP客户端尚未作为与旧版本相同，但它提供了一个界面，旨在消除 getPage 的限制。它还旨在更容易扩展和定制。您可以在此处找到描述其用法的文档：

The newer HTTP client isn't yet as featureful as the old one, but it presents an interface intended to eliminate the limitations of getPage. It is also intended to be more easily extended and customized. You can find a document describing its usage here:

http://twistedmatrix.com/documents/current/web/howto/client.html

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