matrix-rust-sdk/contrib/mitmproxy/failures.py

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"""
A mitmproxy script that introduces certain request failures in a deterministic
way.
Used mainly for Matrix style requests.
To run execute it with mitmproxy:
>>> mitmproxy -s failures.py`
"""
import time
import json
from mitmproxy import http
from mitmproxy.script import concurrent
REQUEST_COUNT = 0
@concurrent
def request(flow):
global REQUEST_COUNT
REQUEST_COUNT += 1
if REQUEST_COUNT % 2 == 0:
return
elif REQUEST_COUNT % 3 == 0:
flow.response = http.HTTPResponse.make(
500,
b"Gateway error",
)
elif REQUEST_COUNT % 7 == 0:
if "sync" in flow.request.pretty_url:
time.sleep(60)
else:
time.sleep(30)
else:
flow.response = http.HTTPResponse.make(
429,
json.dumps({
"errcode": "M_LIMIT_EXCEEDED",
"error": "Too many requests",
"retry_after_ms": 2000
})
)