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import typing
from mitmproxy import flowfilter
from mitmproxy import exceptions
from mitmproxy import ctx
class Intercept:
def __init__(self):
self.filt = None
def load(self, loader):
loader.add_option(
"intercept_active", bool, False,
"Intercept toggle"
)
loader.add_option(
"intercept", typing.Optional[str], None,
"Intercept filter expression."
)
def configure(self, updated):
if "intercept" in updated:
if not ctx.options.intercept:
self.filt = None
ctx.options.intercept_active = False
return
self.filt = flowfilter.parse(ctx.options.intercept)
if not self.filt:
raise exceptions.OptionsError(
"Invalid interception filter: %s" % ctx.options.intercept
)
ctx.options.intercept_active = True
def process_flow(self, f):
if self.filt:
should_intercept = all([
self.filt(f),
not f.request.is_replay,
])
if should_intercept and ctx.options.intercept_active:
f.intercept()
# Handlers
def request(self, f):
self.process_flow(f)
def response(self, f):
self.process_flow(f)
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