156 lines
4.7 KiB
Python
156 lines
4.7 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 synapse.http.agent_name import AGENT_NAME
|
|
from syutil.jsonutil import encode_canonical_json
|
|
|
|
from twisted.internet import defer, reactor
|
|
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__)
|
|
|
|
|
|
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)
|
|
|
|
@defer.inlineCallbacks
|
|
def post_urlencoded_get_json(self, uri, args={}):
|
|
logger.debug("post_urlencoded_get_json args: %s", args)
|
|
query_bytes = urllib.urlencode(args, True)
|
|
|
|
response = yield self.agent.request(
|
|
"POST",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"Content-Type": [b"application/x-www-form-urlencoded"],
|
|
b"User-Agent": [AGENT_NAME],
|
|
}),
|
|
bodyProducer=FileBodyProducer(StringIO(query_bytes))
|
|
)
|
|
|
|
body = yield 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.info("HTTP POST %s -> %s", json_str, uri)
|
|
|
|
response = yield self.agent.request(
|
|
"POST",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
"Content-Type": ["application/json"]
|
|
}),
|
|
bodyProducer=FileBodyProducer(StringIO(json_str))
|
|
)
|
|
|
|
body = yield readBody(response)
|
|
|
|
defer.returnValue(json.loads(body))
|
|
|
|
@defer.inlineCallbacks
|
|
def get_json(self, uri, args={}):
|
|
""" Get's some json from the given host and path
|
|
|
|
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* HTTP response.
|
|
|
|
The result of the deferred is a tuple of `(code, response)`,
|
|
where `response` is a dict representing the decoded JSON body.
|
|
"""
|
|
|
|
yield
|
|
if len(args):
|
|
query_bytes = urllib.urlencode(args, True)
|
|
uri = "%s?%s" % (uri, query_bytes)
|
|
|
|
response = yield self.agent.request(
|
|
"GET",
|
|
uri.encode("ascii"),
|
|
headers=Headers({
|
|
b"User-Agent": [AGENT_NAME],
|
|
})
|
|
)
|
|
|
|
body = yield readBody(response)
|
|
|
|
defer.returnValue(json.loads(body))
|
|
|
|
|
|
class CaptchaServerHttpClient(SimpleHttpClient):
|
|
"""
|
|
Separate HTTP client for talking to google's captcha servers
|
|
Only slightly special because accepts partial download responses
|
|
"""
|
|
|
|
@defer.inlineCallbacks
|
|
def post_urlencoded_get_raw(self, url, args={}):
|
|
query_bytes = urllib.urlencode(args, True)
|
|
|
|
response = yield self.agent.request(
|
|
"POST",
|
|
url.encode("ascii"),
|
|
bodyProducer=FileBodyProducer(StringIO(query_bytes)),
|
|
headers=Headers({
|
|
b"Content-Type": [b"application/x-www-form-urlencoded"],
|
|
b"User-Agent": [AGENT_NAME],
|
|
})
|
|
)
|
|
|
|
try:
|
|
body = yield 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)
|