mitmproxy/doc-src/interception.html
Aldo Cortesi 6d4bb1faeb Docs.
Add screenshots and an explanation of interception.
2011-03-19 12:32:44 +13:00

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HTML

__mitmproxy__'s interception functionality lets you pause an HTTP request or
response, inspect and modify it, and then accept it to send it on to the server
or client. Because this is an interactive function, it's only present in
__mitmproxy__, not in __mitmdump__.
### 1: Set an interception pattern
<img src="@!urlTo('intercept-filt.png')!@"/>
We press __i__ to set an interception pattern. In this case, the __~q__ filter
pattern tells __mitmproxy__ to intercept all requests. For complete filter
syntax, see the [Filter expressions](@!urlTo("filters.html")!@) section of this
document, or the built-in help function in __mitmproxy__.
### 2: Intercepted conenctions are indicated with a red exclamation mark:
<img src="@!urlTo('intercept-mid.png')!@"/>
### 3: You can now view and modify the request:
<img src="@!urlTo('intercept-options.png')!@"/>
In this case, we viewd the request by selecting it, pressed __e__ for "edit"
and __m__ for "method" to change the HTTP request method.
### 4: Accept the intercept to continue
<img src="@!urlTo('intercept-result.png')!@"/>
Finally, we press __a__ to accept the modified request, which is then sent on
to the server. In this case, we changed the request from an HTTP GET to to
OPTIONS, and Google's server has responded with a 405 "Method not allowed".