mitmproxy read flows from file

[snaike00]

Problem Description

Hello.
The documentation states that the rfile parameter is used to read flows from a file.

I have a question: is it possible to specify multiple files using the rfile parameter in a single running instance of mitmproxy? Or is this not possible?

System Information

mitmproxy version is 12.2.3

Checklist

• This bug affects the latest mitmproxy release.

[Prinzhorn]

No, implementation is here https://github.com/mitmproxy/mitmproxy/blob/main/mitmproxy/addons/readfile.py

[shariqueahmad108-ship-it]

Adding to the "no": you can still load several captures in one instance, because a flow file is just a stream of records, so the files can be concatenated:

cat a.flows b.flows > all.flows        # Windows: copy /b a.flows+b.flows all.flows
mitmproxy -r all.flows                 # or mitmweb / mitmdump

I tested this on 12.2.3 with two dumps of 2 flows each: mitmdump -r all.flows loads all 4.

One gotcha: passing the option twice (-r a.flows -r b.flows) doesn't combine them. The last one wins, and only b.flows gets loaded, with no warning.

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