Allow handling EQ events through message_handler in proxy

This commit is contained in:
Salad Dais
2024-01-09 13:40:07 +00:00
parent 3ea8a27914
commit 0ba1a779ef
4 changed files with 42 additions and 22 deletions

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@@ -341,6 +341,21 @@ class Message:
msg.acks = dict_val['acks']
return msg
@classmethod
def from_eq_event(cls, event) -> Message:
# If this isn't a templated message (like some EQ-only events are),
# then we wrap it in a synthetic `Message` so that the API for handling
# both EQ-only and templated message events can be the same. Ick.
msg = cls(event["message"])
if isinstance(event["body"], dict):
msg.add_block(Block("EventData", **event["body"]))
else:
# Shouldn't be any events that have anything other than a dict
# as a body, but just to be sure...
msg.add_block(Block("EventData", Data=event["body"]))
msg.synthetic = True
return msg
def invalidate_caches(self):
# Don't have any caches if we haven't even parsed
if self.raw_body:

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@@ -285,17 +285,7 @@ class HippoClientRegion(BaseClientRegion):
if self._llsd_serializer.can_handle(event["message"]):
msg = self._llsd_serializer.deserialize(event)
else:
# If this isn't a templated message (like some EQ-only events are),
# then we wrap it in a synthetic `Message` so that the API for handling
# both EQ-only and templated message events can be the same. Ick.
msg = Message(event["message"])
if isinstance(event["body"], dict):
msg.add_block(Block("EventData", **event["body"]))
else:
# Shouldn't be any events that have anything other than a dict
# as a body, but just to be sure...
msg.add_block(Block("EventData", Data=event["body"]))
msg.synthetic = True
msg = Message.from_eq_event(event)
msg.sender = self.circuit_addr
msg.direction = Direction.IN
self.session().message_handler.handle(msg)

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@@ -16,6 +16,8 @@ import mitmproxy.http
from hippolyzer.lib.base import llsd
from hippolyzer.lib.base.datatypes import UUID
from hippolyzer.lib.base.message.llsd_msg_serializer import LLSDMessageSerializer
from hippolyzer.lib.base.message.message import Message
from hippolyzer.lib.base.network.transport import Direction
from hippolyzer.lib.proxy.addons import AddonManager
from hippolyzer.lib.proxy.http_flow import HippoHTTPFlow
from hippolyzer.lib.proxy.caps import CapData, CapType
@@ -32,6 +34,9 @@ def apply_security_monkeypatches():
apply_security_monkeypatches()
LOG = logging.getLogger(__name__)
class MITMProxyEventManager:
"""
Handles HTTP request and response events from the mitmproxy process
@@ -58,7 +63,7 @@ class MITMProxyEventManager:
try:
await self.pump_proxy_event()
except:
logging.exception("Exploded when handling parsed packets")
LOG.exception("Exploded when handling parsed packets")
async def pump_proxy_event(self):
try:
@@ -140,7 +145,7 @@ class MITMProxyEventManager:
# Both the wrapper request and the actual asset server request went through
# the proxy. Don't bother trying the redirect strategy anymore.
self._asset_server_proxied = True
logging.warning("noproxy not used, switching to URI rewrite strategy")
LOG.warning("noproxy not used, switching to URI rewrite strategy")
elif cap_data and cap_data.cap_name == "EventQueueGet":
# HACK: The sim's EQ acking mechanism doesn't seem to actually work.
# if the client drops the connection due to timeout before we can
@@ -151,7 +156,7 @@ class MITMProxyEventManager:
eq_manager = cap_data.region().eq_manager
cached_resp = eq_manager.get_cached_poll_response(req_ack_id)
if cached_resp:
logging.warning("Had to serve a cached EventQueueGet due to client desync")
LOG.warning("Had to serve a cached EventQueueGet due to client desync")
flow.response = mitmproxy.http.Response.make(
200,
llsd.format_xml(cached_resp),
@@ -215,7 +220,7 @@ class MITMProxyEventManager:
try:
message_logger.log_http_response(flow)
except:
logging.exception("Failed while logging HTTP flow")
LOG.exception("Failed while logging HTTP flow")
# Don't process responses for requests or responses injected by the proxy.
# We already processed it, it came from us!
@@ -274,13 +279,13 @@ class MITMProxyEventManager:
if cap_data.cap_name == "Seed":
parsed = llsd.parse_xml(flow.response.content)
logging.debug("Got seed cap for %r : %r" % (cap_data, parsed))
LOG.debug("Got seed cap for %r : %r" % (cap_data, parsed))
region.update_caps(parsed)
# On LL's grid these URIs aren't unique across sessions or regions,
# so we get request attribution by replacing them with a unique
# alias URI.
logging.debug("Replacing GetMesh caps with wrapped versions")
LOG.debug("Replacing GetMesh caps with wrapped versions")
wrappable_caps = {"GetMesh2", "GetMesh", "GetTexture", "ViewerAsset"}
for cap_name in wrappable_caps:
if cap_name in parsed:
@@ -315,7 +320,7 @@ class MITMProxyEventManager:
if "uploader" in parsed:
region.register_cap(cap_data.cap_name + "Uploader", parsed["uploader"], CapType.TEMPORARY)
except:
logging.exception("OOPS, blew up in HTTP proxy!")
LOG.exception("OOPS, blew up in HTTP proxy!")
def _handle_login_flow(self, flow: HippoHTTPFlow):
resp = xmlrpc.client.loads(flow.response.content)[0][0] # type: ignore
@@ -324,20 +329,30 @@ class MITMProxyEventManager:
flow.cap_data = CapData("LoginRequest", session=weakref.ref(sess))
def _handle_eq_event(self, session: Session, region: ProxiedRegion, event: Dict[str, Any]):
logging.debug("Event received on %r: %r" % (self, event))
LOG.debug("Event received on %r: %r" % (self, event))
message_logger = self.session_manager.message_logger
if message_logger:
message_logger.log_eq_event(session, region, event)
if self.llsd_message_serializer.can_handle(event["message"]):
msg = self.llsd_message_serializer.deserialize(event)
else:
msg = Message.from_eq_event(event)
msg.sender = region.circuit_addr
msg.direction = Direction.IN
try:
region.message_handler.handle(msg)
except:
LOG.exception("Failed while handling EQ message")
handle_event = AddonManager.handle_eq_event(session, region, event)
if handle_event is True:
# Addon handled the event and didn't want it sent to the viewer
return True
msg = None
# Handle events that inform us about new regions
sim_addr, sim_handle, sim_seed = None, None, None
if self.llsd_message_serializer.can_handle(event["message"]):
msg = self.llsd_message_serializer.deserialize(event)
# Sim is asking us to talk to a neighbour
if event["message"] == "EstablishAgentCommunication":
ip_split = event["body"]["sim-ip-and-port"].split(":")

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