mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-10 09:34:21 -05:00
293 lines
9.4 KiB
Python
293 lines
9.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014, 2015 OpenMarket Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
from OpenSSL import SSL
|
|
from OpenSSL.SSL import VERIFY_NONE
|
|
|
|
from synapse.api.errors import CodeMessageException
|
|
from synapse.util.logcontext import preserve_context_over_fn
|
|
import synapse.metrics
|
|
|
|
from canonicaljson import encode_canonical_json
|
|
|
|
from twisted.internet import defer, reactor, ssl
|
|
from twisted.web.client import (
|
|
Agent, readBody, FileBodyProducer, PartialDownloadError,
|
|
)
|
|
from twisted.web.http_headers import Headers
|
|
|
|
from StringIO import StringIO
|
|
|
|
import simplejson as json
|
|
import logging
|
|
import urllib
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
metrics = synapse.metrics.get_metrics_for(__name__)
|
|
|
|
outgoing_requests_counter = metrics.register_counter(
|
|
"requests",
|
|
labels=["method"],
|
|
)
|
|
incoming_responses_counter = metrics.register_counter(
|
|
"responses",
|
|
labels=["method", "code"],
|
|
)
|
|
|
|
|
|
class SimpleHttpClient(object):
|
|
"""
|
|
A simple, no-frills HTTP client with methods that wrap up common ways of
|
|
using HTTP in Matrix
|
|
"""
|
|
def __init__(self, hs):
|
|
self.hs = hs
|
|
# The default context factory in Twisted 14.0.0 (which we require) is
|
|
# BrowserLikePolicyForHTTPS which will do regular cert validation
|
|
# 'like a browser'
|
|
self.agent = Agent(
|
|
reactor,
|
|
connectTimeout=15,
|
|
contextFactory=hs.get_http_client_context_factory()
|
|
)
|
|
self.user_agent = hs.version_string
|
|
if hs.config.user_agent_suffix:
|
|
self.user_agent = "%s %s" % (self.user_agent, hs.config.user_agent_suffix,)
|
|
|
|
def request(self, method, uri, *args, **kwargs):
|
|
# A small wrapper around self.agent.request() so we can easily attach
|
|
# counters to it
|
|
outgoing_requests_counter.inc(method)
|
|
d = preserve_context_over_fn(
|
|
self.agent.request,
|
|
method, uri, *args, **kwargs
|
|
)
|
|
|
|
logger.info("Sending request %s %s", method, uri)
|
|
|
|
def _cb(response):
|
|
incoming_responses_counter.inc(method, response.code)
|
|
logger.info(
|
|
"Received response to %s %s: %s",
|
|
method, uri, response.code
|
|
)
|
|
return response
|
|
|
|
def _eb(failure):
|
|
incoming_responses_counter.inc(method, "ERR")
|
|
logger.info(
|
|
"Error sending request to %s %s: %s %s",
|
|
method, uri, failure.type, failure.getErrorMessage()
|
|
)
|
|
return failure
|
|
|
|
d.addCallbacks(_cb, _eb)
|
|
|
|
return d
|
|
|
|
@defer.inlineCallbacks
|
|
def post_urlencoded_get_json(self, uri, args={}):
|
|
# TODO: Do we ever want to log message contents?
|
|
logger.debug("post_urlencoded_get_json args: %s", args)
|
|
|
|
query_bytes = urllib.urlencode(args, True)
|
|
|
|
response = yield self.request(
|
|
"POST",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"Content-Type": [b"application/x-www-form-urlencoded"],
|
|
b"User-Agent": [self.user_agent],
|
|
}),
|
|
bodyProducer=FileBodyProducer(StringIO(query_bytes))
|
|
)
|
|
|
|
body = yield preserve_context_over_fn(readBody, response)
|
|
|
|
defer.returnValue(json.loads(body))
|
|
|
|
@defer.inlineCallbacks
|
|
def post_json_get_json(self, uri, post_json):
|
|
json_str = encode_canonical_json(post_json)
|
|
|
|
logger.debug("HTTP POST %s -> %s", json_str, uri)
|
|
|
|
response = yield self.request(
|
|
"POST",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"Content-Type": [b"application/json"],
|
|
b"User-Agent": [self.user_agent],
|
|
}),
|
|
bodyProducer=FileBodyProducer(StringIO(json_str))
|
|
)
|
|
|
|
body = yield preserve_context_over_fn(readBody, response)
|
|
|
|
defer.returnValue(json.loads(body))
|
|
|
|
@defer.inlineCallbacks
|
|
def get_json(self, uri, args={}):
|
|
""" Gets some json from the given URI.
|
|
|
|
Args:
|
|
uri (str): The URI to request, not including query parameters
|
|
args (dict): A dictionary used to create query strings, defaults to
|
|
None.
|
|
**Note**: The value of each key is assumed to be an iterable
|
|
and *not* a string.
|
|
Returns:
|
|
Deferred: Succeeds when we get *any* 2xx HTTP response, with the
|
|
HTTP body as JSON.
|
|
Raises:
|
|
On a non-2xx HTTP response. The response body will be used as the
|
|
error message.
|
|
"""
|
|
body = yield self.get_raw(uri, args)
|
|
defer.returnValue(json.loads(body))
|
|
|
|
@defer.inlineCallbacks
|
|
def put_json(self, uri, json_body, args={}):
|
|
""" Puts some json to the given URI.
|
|
|
|
Args:
|
|
uri (str): The URI to request, not including query parameters
|
|
json_body (dict): The JSON to put in the HTTP body,
|
|
args (dict): A dictionary used to create query strings, defaults to
|
|
None.
|
|
**Note**: The value of each key is assumed to be an iterable
|
|
and *not* a string.
|
|
Returns:
|
|
Deferred: Succeeds when we get *any* 2xx HTTP response, with the
|
|
HTTP body as JSON.
|
|
Raises:
|
|
On a non-2xx HTTP response.
|
|
"""
|
|
if len(args):
|
|
query_bytes = urllib.urlencode(args, True)
|
|
uri = "%s?%s" % (uri, query_bytes)
|
|
|
|
json_str = encode_canonical_json(json_body)
|
|
|
|
response = yield self.request(
|
|
"PUT",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"User-Agent": [self.user_agent],
|
|
"Content-Type": ["application/json"]
|
|
}),
|
|
bodyProducer=FileBodyProducer(StringIO(json_str))
|
|
)
|
|
|
|
body = yield preserve_context_over_fn(readBody, response)
|
|
|
|
if 200 <= response.code < 300:
|
|
defer.returnValue(json.loads(body))
|
|
else:
|
|
# NB: This is explicitly not json.loads(body)'d because the contract
|
|
# of CodeMessageException is a *string* message. Callers can always
|
|
# load it into JSON if they want.
|
|
raise CodeMessageException(response.code, body)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_raw(self, uri, args={}):
|
|
""" Gets raw text from the given URI.
|
|
|
|
Args:
|
|
uri (str): The URI to request, not including query parameters
|
|
args (dict): A dictionary used to create query strings, defaults to
|
|
None.
|
|
**Note**: The value of each key is assumed to be an iterable
|
|
and *not* a string.
|
|
Returns:
|
|
Deferred: Succeeds when we get *any* 2xx HTTP response, with the
|
|
HTTP body at text.
|
|
Raises:
|
|
On a non-2xx HTTP response. The response body will be used as the
|
|
error message.
|
|
"""
|
|
if len(args):
|
|
query_bytes = urllib.urlencode(args, True)
|
|
uri = "%s?%s" % (uri, query_bytes)
|
|
|
|
response = yield self.request(
|
|
"GET",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"User-Agent": [self.user_agent],
|
|
})
|
|
)
|
|
|
|
body = yield preserve_context_over_fn(readBody, response)
|
|
|
|
if 200 <= response.code < 300:
|
|
defer.returnValue(body)
|
|
else:
|
|
raise CodeMessageException(response.code, body)
|
|
|
|
|
|
class CaptchaServerHttpClient(SimpleHttpClient):
|
|
"""
|
|
Separate HTTP client for talking to google's captcha servers
|
|
Only slightly special because accepts partial download responses
|
|
|
|
used only by c/s api v1
|
|
"""
|
|
|
|
@defer.inlineCallbacks
|
|
def post_urlencoded_get_raw(self, url, args={}):
|
|
query_bytes = urllib.urlencode(args, True)
|
|
|
|
response = yield self.request(
|
|
"POST",
|
|
url.encode("ascii"),
|
|
bodyProducer=FileBodyProducer(StringIO(query_bytes)),
|
|
headers=Headers({
|
|
b"Content-Type": [b"application/x-www-form-urlencoded"],
|
|
b"User-Agent": [self.user_agent],
|
|
})
|
|
)
|
|
|
|
try:
|
|
body = yield preserve_context_over_fn(readBody, response)
|
|
defer.returnValue(body)
|
|
except PartialDownloadError as e:
|
|
# twisted dislikes google's response, no content length.
|
|
defer.returnValue(e.response)
|
|
|
|
|
|
def _print_ex(e):
|
|
if hasattr(e, "reasons") and e.reasons:
|
|
for ex in e.reasons:
|
|
_print_ex(ex)
|
|
else:
|
|
logger.exception(e)
|
|
|
|
|
|
class InsecureInterceptableContextFactory(ssl.ContextFactory):
|
|
"""
|
|
Factory for PyOpenSSL SSL contexts which accepts any certificate for any domain.
|
|
|
|
Do not use this since it allows an attacker to intercept your communications.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self._context = SSL.Context(SSL.SSLv23_METHOD)
|
|
self._context.set_verify(VERIFY_NONE, lambda *_: None)
|
|
|
|
def getContext(self, hostname, port):
|
|
return self._context
|