mitmproxy/doc-src/serverreplay.html
Aldo Cortesi 872b7881f2 Docs.
2011-03-19 11:26:51 +13:00

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Server-side replay lets us replay server responses from a saved HTTP
conversation.
Matching requests with responses
--------------------------------
By default, __mitmproxy__ excludes request headers when matching incoming
requests with responses from the replay file. This works in most circumstances,
and makes it possible to replay server responses in situations where request
headers would naturally vary, e.g. using a different user agent. The
__--rheader__ option to both __mitmproxy__ and __mitmdump__ allows you to
override this behaviour by specifying individual headers that should be
included in matching.
Response refreshing
-------------------
Simply replaying server responses without modification will often result in
unexpected behaviour. For example cookie timeouts that were in the future at
the time a conversation was recorded might be in the past at the time it is
replayed. By default, __mitmproxy__ refreshes server responses before sending
them to the client. The __date__, __expires__ and __last-modified__ headers are
all updated to have the same relative time offset as they had at the time of
recording. So, if they were in the past at the time of recording, they will be
in the past at the time of replay, and vice versa. Cookie expiry times are
updated in a similar way.
You can turn off response refreshing using the __norefresh__ option, available
both on the command-line and using the "options" keyboard shortcut within
__mitmproxy__.