Grasscutter/proxy.py
2022-12-13 14:01:27 +08:00

156 lines
4.8 KiB
Python

##
#
# Copyright (C) 2002-2022 MlgmXyysd All Rights Reserved.
#
##
##
#
# Animation Company script for mitmproxy
#
# https://github.com/MlgmXyysd/
#
# *Original fiddler script from https://github.lunatic.moe/fiddlerscript
#
# Environment requirement:
# - mitmdump from mitmproxy
#
# @author MlgmXyysd
# @version 1.1
#
##
import collections
import random
from mitmproxy import http, connection, ctx, tls
from abc import ABC, abstractmethod
from enum import Enum
from mitmproxy.utils import human
from proxy_config import USE_SSL
from proxy_config import REMOTE_HOST
from proxy_config import REMOTE_PORT
class MlgmXyysd_Animation_Company_Proxy:
LIST_DOMAINS = [
"api-os-takumi.mihoyo.com",
"hk4e-api-os-static.mihoyo.com",
"hk4e-sdk-os.mihoyo.com",
"dispatchosglobal.yuanshen.com",
"osusadispatch.yuanshen.com",
"account.mihoyo.com",
"log-upload-os.mihoyo.com",
"dispatchcntest.yuanshen.com",
"devlog-upload.mihoyo.com",
"webstatic.mihoyo.com",
"log-upload.mihoyo.com",
"hk4e-sdk.mihoyo.com",
"api-beta-sdk.mihoyo.com",
"api-beta-sdk-os.mihoyo.com",
"cnbeta01dispatch.yuanshen.com",
"dispatchcnglobal.yuanshen.com",
"cnbeta02dispatch.yuanshen.com",
"sdk-os-static.mihoyo.com",
"webstatic-sea.mihoyo.com",
"webstatic-sea.hoyoverse.com",
"hk4e-sdk-os-static.hoyoverse.com",
"sdk-os-static.hoyoverse.com",
"api-account-os.hoyoverse.com",
"hk4e-sdk-os.hoyoverse.com",
"overseauspider.yuanshen.com",
"gameapi-account.mihoyo.com",
"minor-api.mihoyo.com",
"public-data-api.mihoyo.com",
"uspider.yuanshen.com",
"sdk-static.mihoyo.com",
"abtest-api-data-sg.hoyoverse.com",
"log-upload-os.hoyoverse.com"
]
def request(self, flow: http.HTTPFlow) -> None:
if flow.request.host in self.LIST_DOMAINS:
if USE_SSL:
flow.request.scheme = "https"
else:
flow.request.scheme = "http"
flow.request.host = REMOTE_HOST
flow.request.port = REMOTE_PORT
class InterceptionResult(Enum):
SUCCESS = 1
FAILURE = 2
SKIPPED = 3
class TlsStrategy(ABC):
def __init__(self):
self.history = collections.defaultdict(lambda: collections.deque(maxlen=200))
@abstractmethod
def should_intercept(self, server_address: connection.Address) -> bool:
raise NotImplementedError()
def record_success(self, server_address):
self.history[server_address].append(InterceptionResult.SUCCESS)
def record_failure(self, server_address):
self.history[server_address].append(InterceptionResult.FAILURE)
def record_skipped(self, server_address):
self.history[server_address].append(InterceptionResult.SKIPPED)
class ConservativeStrategy(TlsStrategy):
def should_intercept(self, server_address: connection.Address) -> bool:
return InterceptionResult.FAILURE not in self.history[server_address]
class ProbabilisticStrategy(TlsStrategy):
def __init__(self, p: float):
self.p = p
super().__init__()
def should_intercept(self, server_address: connection.Address) -> bool:
return random.uniform(0, 1) < self.p
class MaybeTls:
strategy: TlsStrategy
def load(self, l):
l.add_option(
"tls_strategy", int, 0,
"TLS passthrough strategy. If set to 0, connections will be passed through after the first unsuccessful "
"handshake. If set to 0 < p <= 100, connections with be passed through with probability p.",
)
def configure(self, updated):
if "tls_strategy" not in updated:
return
if ctx.options.tls_strategy > 0:
self.strategy = ProbabilisticStrategy(ctx.options.tls_strategy / 100)
else:
self.strategy = ConservativeStrategy()
def tls_clienthello(self, data: tls.ClientHelloData):
server_address = data.context.server.peername
if not self.strategy.should_intercept(server_address):
ctx.log(f"TLS passthrough: {human.format_address(server_address)}.")
data.ignore_connection = True
self.strategy.record_skipped(server_address)
def tls_established_client(self, data: tls.TlsData):
server_address = data.context.server.peername
ctx.log(f"TLS handshake successful: {human.format_address(server_address)}")
self.strategy.record_success(server_address)
def tls_failed_client(self, data: tls.TlsData):
server_address = data.context.server.peername
ctx.log(f"TLS handshake failed: {human.format_address(server_address)}")
self.strategy.record_failure(server_address)
addons = [
MlgmXyysd_Animation_Company_Proxy(),
MaybeTls()
]