mirror of
https://github.com/kuhyx/testsAndMisc.git
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55 lines
1.6 KiB
Markdown
55 lines
1.6 KiB
Markdown
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# Simulate Connection Failure
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(it takes ≈ 1hr to get it working)
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Install: https://mitmproxy.org/ (install it the way they recommend for your OS, for Ubuntu specifically apt version is 4 main versions behind newest version)
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Run it using `mitmproxy`
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Run your webbrowser using `127.0.0.1:8080` as proxy
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on chromium-based browser it should be enough to do:
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`google-chrome --proxy-server=127.0.0.1:8080`
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Run `mitmweb`
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open 127.0.0.1:808**1**
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Click `File` in upper left corner and then `Install Certificates`
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You should get a list of Windows/Linux/macOS/Firefox with certificates and how to install them
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Install certificates using those instructions
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**important!** Go to your browser certificate settings and ensure that:
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1. mitmproxy certificate is imported
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2. **it is set to trusted**
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Now all of your network communication should go through mitmproxy, you can verify it by going to 127.0.0.1:808**1** and seeing constant flow of requests
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## What can we do with it?
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1. Install mitmproxy python library using pip
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`pip install mitmproxy`
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2. Copy and paste this “hello world”:
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```
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from mitmproxy import http
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def request(flow: http.HTTPFlow) -> None:
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# Only intercept traffic to example.com
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if "example.com" in flow.request.host:
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flow.response = http.Response.make(
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502, # Bad Gateway status code
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b"Simulated connection failure",
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{"Content-Type": "text/plain"}
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)
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```
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3. Run it: `mitmdump -s mitm_world.py`
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4. Go to [example.com](http://example.com)
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5. You should see “simulated connection failure” in plain text
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