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Port http/ to Python 3 (#3771)

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Amber Brown 2018-09-06 00:10:47 +10:00 committed by GitHub
parent a6cf7d9d9a
commit 2d2828dcbc
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8 changed files with 134 additions and 186 deletions
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1
changelog.d/3771.misc Normal file
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@ -0,0 +1 @@
http/ is now ported to Python 3.

5
setup.cfg
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@ -17,13 +17,14 @@ ignore =
[pep8]
max-line-length = 90
# W503 requires that binary operators be at the end, not start, of lines. Erik
# doesn't like it. E203 is contrary to PEP8.
ignore = W503,E203
# doesn't like it. E203 is contrary to PEP8. E731 is silly.
ignore = W503,E203,E731
[flake8]
# note that flake8 inherits the "ignore" settings from "pep8" (because it uses
# pep8 to do those checks), but not the "max-line-length" setting
max-line-length = 90
ignore=W503,E203,E731
[isort]
line_length = 89

13
synapse/appservice/api.py
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@ -13,7 +13,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import urllib
from six.moves import urllib
from prometheus_client import Counter
@ -98,7 +99,7 @@ class ApplicationServiceApi(SimpleHttpClient):
def query_user(self, service, user_id):
if service.url is None:
defer.returnValue(False)
uri = service.url + ("/users/%s" % urllib.quote(user_id))
uri = service.url + ("/users/%s" % urllib.parse.quote(user_id))
response = None
try:
response = yield self.get_json(uri, {
@ -119,7 +120,7 @@ class ApplicationServiceApi(SimpleHttpClient):
def query_alias(self, service, alias):
if service.url is None:
defer.returnValue(False)
uri = service.url + ("/rooms/%s" % urllib.quote(alias))
uri = service.url + ("/rooms/%s" % urllib.parse.quote(alias))
response = None
try:
response = yield self.get_json(uri, {
@ -153,7 +154,7 @@ class ApplicationServiceApi(SimpleHttpClient):
service.url,
APP_SERVICE_PREFIX,
kind,
urllib.quote(protocol)
urllib.parse.quote(protocol)
)
try:
response = yield self.get_json(uri, fields)
@ -188,7 +189,7 @@ class ApplicationServiceApi(SimpleHttpClient):
uri = "%s%s/thirdparty/protocol/%s" % (
service.url,
APP_SERVICE_PREFIX,
urllib.quote(protocol)
urllib.parse.quote(protocol)
)
try:
info = yield self.get_json(uri, {})
@ -228,7 +229,7 @@ class ApplicationServiceApi(SimpleHttpClient):
txn_id = str(txn_id)
uri = service.url + ("/transactions/%s" %
urllib.quote(txn_id))
urllib.parse.quote(txn_id))
try:
yield self.put_json(
uri=uri,

82
synapse/http/client.py
View File

@ -13,24 +13,25 @@
# 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.
import logging
import urllib
from six import StringIO
from six import text_type
from six.moves import urllib
import treq
from canonicaljson import encode_canonical_json, json
from prometheus_client import Counter
from OpenSSL import SSL
from OpenSSL.SSL import VERIFY_NONE
from twisted.internet import defer, protocol, reactor, ssl, task
from twisted.internet import defer, protocol, reactor, ssl
from twisted.internet.endpoints import HostnameEndpoint, wrapClientTLS
from twisted.web._newclient import ResponseDone
from twisted.web.client import (
Agent,
BrowserLikeRedirectAgent,
ContentDecoderAgent,
FileBodyProducer as TwistedFileBodyProducer,
GzipDecoder,
HTTPConnectionPool,
PartialDownloadError,
@ -83,18 +84,20 @@ class SimpleHttpClient(object):
if hs.config.user_agent_suffix:
self.user_agent = "%s %s" % (self.user_agent, hs.config.user_agent_suffix,)
self.user_agent = self.user_agent.encode('ascii')
@defer.inlineCallbacks
def request(self, method, uri, *args, **kwargs):
def request(self, method, uri, data=b'', headers=None):
# A small wrapper around self.agent.request() so we can easily attach
# counters to it
outgoing_requests_counter.labels(method).inc()
# log request but strip `access_token` (AS requests for example include this)
logger.info("Sending request %s %s", method, redact_uri(uri))
logger.info("Sending request %s %s", method, redact_uri(uri.encode('ascii')))
try:
request_deferred = self.agent.request(
method, uri, *args, **kwargs
request_deferred = treq.request(
method, uri, agent=self.agent, data=data, headers=headers
)
add_timeout_to_deferred(
request_deferred, 60, self.hs.get_reactor(),
@ -105,14 +108,14 @@ class SimpleHttpClient(object):
incoming_responses_counter.labels(method, response.code).inc()
logger.info(
"Received response to %s %s: %s",
method, redact_uri(uri), response.code
method, redact_uri(uri.encode('ascii')), response.code
)
defer.returnValue(response)
except Exception as e:
incoming_responses_counter.labels(method, "ERR").inc()
logger.info(
"Error sending request to %s %s: %s %s",
method, redact_uri(uri), type(e).__name__, e.message
method, redact_uri(uri.encode('ascii')), type(e).__name__, e.args[0]
)
raise
@ -137,7 +140,8 @@ class SimpleHttpClient(object):
# TODO: Do we ever want to log message contents?
logger.debug("post_urlencoded_get_json args: %s", args)
query_bytes = urllib.urlencode(encode_urlencode_args(args), True)
query_bytes = urllib.parse.urlencode(
encode_urlencode_args(args), True).encode("utf8")
actual_headers = {
b"Content-Type": [b"application/x-www-form-urlencoded"],
@ -148,15 +152,14 @@ class SimpleHttpClient(object):
response = yield self.request(
"POST",
uri.encode("ascii"),
uri,
headers=Headers(actual_headers),
bodyProducer=FileBodyProducer(StringIO(query_bytes))
data=query_bytes
)
body = yield make_deferred_yieldable(readBody(response))
if 200 <= response.code < 300:
defer.returnValue(json.loads(body))
body = yield make_deferred_yieldable(treq.json_content(response))
defer.returnValue(body)
else:
raise HttpResponseException(response.code, response.phrase, body)
@ -191,9 +194,9 @@ class SimpleHttpClient(object):
response = yield self.request(
"POST",
uri.encode("ascii"),
uri,
headers=Headers(actual_headers),
bodyProducer=FileBodyProducer(StringIO(json_str))
data=json_str
)
body = yield make_deferred_yieldable(readBody(response))
@ -248,7 +251,7 @@ class SimpleHttpClient(object):
ValueError: if the response was not JSON
"""
if len(args):
query_bytes = urllib.urlencode(args, True)
query_bytes = urllib.parse.urlencode(args, True)
uri = "%s?%s" % (uri, query_bytes)
json_str = encode_canonical_json(json_body)
@ -262,9 +265,9 @@ class SimpleHttpClient(object):
response = yield self.request(
"PUT",
uri.encode("ascii"),
uri,
headers=Headers(actual_headers),
bodyProducer=FileBodyProducer(StringIO(json_str))
data=json_str
)
body = yield make_deferred_yieldable(readBody(response))
@ -293,7 +296,7 @@ class SimpleHttpClient(object):
HttpResponseException on a non-2xx HTTP response.
"""
if len(args):
query_bytes = urllib.urlencode(args, True)
query_bytes = urllib.parse.urlencode(args, True)
uri = "%s?%s" % (uri, query_bytes)
actual_headers = {
@ -304,7 +307,7 @@ class SimpleHttpClient(object):
response = yield self.request(
"GET",
uri.encode("ascii"),
uri,
headers=Headers(actual_headers),
)
@ -339,7 +342,7 @@ class SimpleHttpClient(object):
response = yield self.request(
"GET",
url.encode("ascii"),
url,
headers=Headers(actual_headers),
)
@ -434,12 +437,12 @@ class CaptchaServerHttpClient(SimpleHttpClient):
@defer.inlineCallbacks
def post_urlencoded_get_raw(self, url, args={}):
query_bytes = urllib.urlencode(encode_urlencode_args(args), True)
query_bytes = urllib.parse.urlencode(encode_urlencode_args(args), True)
response = yield self.request(
"POST",
url.encode("ascii"),
bodyProducer=FileBodyProducer(StringIO(query_bytes)),
url,
data=query_bytes,
headers=Headers({
b"Content-Type": [b"application/x-www-form-urlencoded"],
b"User-Agent": [self.user_agent],
@ -510,7 +513,7 @@ def encode_urlencode_args(args):
def encode_urlencode_arg(arg):
if isinstance(arg, unicode):
if isinstance(arg, text_type):
return arg.encode('utf-8')
elif isinstance(arg, list):
return [encode_urlencode_arg(i) for i in arg]
@ -542,26 +545,3 @@ class InsecureInterceptableContextFactory(ssl.ContextFactory):
def creatorForNetloc(self, hostname, port):
return self
class FileBodyProducer(TwistedFileBodyProducer):
"""Workaround for https://twistedmatrix.com/trac/ticket/8473
We override the pauseProducing and resumeProducing methods in twisted's
FileBodyProducer so that they do not raise exceptions if the task has
already completed.
"""
def pauseProducing(self):
try:
super(FileBodyProducer, self).pauseProducing()
except task.TaskDone:
# task has already completed
pass
def resumeProducing(self):
try:
super(FileBodyProducer, self).resumeProducing()
except task.NotPaused:
# task was not paused (probably because it had already completed)
pass

202
synapse/http/matrixfederationclient.py
View File

@ -17,19 +17,19 @@ import cgi
import logging
import random
import sys
import urllib
from six import string_types
from six.moves.urllib import parse as urlparse
from six import PY3, string_types
from six.moves import urllib
from canonicaljson import encode_canonical_json, json
import treq
from canonicaljson import encode_canonical_json
from prometheus_client import Counter
from signedjson.sign import sign_json
from twisted.internet import defer, protocol, reactor
from twisted.internet.error import DNSLookupError
from twisted.web._newclient import ResponseDone
from twisted.web.client import Agent, HTTPConnectionPool, readBody
from twisted.web.client import Agent, HTTPConnectionPool
from twisted.web.http_headers import Headers
import synapse.metrics
@ -58,13 +58,18 @@ incoming_responses_counter = Counter("synapse_http_matrixfederationclient_respon
MAX_LONG_RETRIES = 10
MAX_SHORT_RETRIES = 3
if PY3:
MAXINT = sys.maxsize
else:
MAXINT = sys.maxint
class MatrixFederationEndpointFactory(object):
def __init__(self, hs):
self.tls_client_options_factory = hs.tls_client_options_factory
def endpointForURI(self, uri):
destination = uri.netloc
destination = uri.netloc.decode('ascii')
return matrix_federation_endpoint(
reactor, destination, timeout=10,
@ -93,26 +98,32 @@ class MatrixFederationHttpClient(object):
)
self.clock = hs.get_clock()
self._store = hs.get_datastore()
self.version_string = hs.version_string
self.version_string = hs.version_string.encode('ascii')
self._next_id = 1
def _create_url(self, destination, path_bytes, param_bytes, query_bytes):
return urlparse.urlunparse(
("matrix", destination, path_bytes, param_bytes, query_bytes, "")
return urllib.parse.urlunparse(
(b"matrix", destination, path_bytes, param_bytes, query_bytes, b"")
)
@defer.inlineCallbacks
def _request(self, destination, method, path,
body_callback, headers_dict={}, param_bytes=b"",
query_bytes=b"", retry_on_dns_fail=True,
json=None, json_callback=None,
param_bytes=b"",
query=None, retry_on_dns_fail=True,
timeout=None, long_retries=False,
ignore_backoff=False,
backoff_on_404=False):
""" Creates and sends a request to the given server
"""
Creates and sends a request to the given server.
Args:
destination (str): The remote server to send the HTTP request to.
method (str): HTTP method
path (str): The HTTP path
json (dict or None): JSON to send in the body.
json_callback (func or None): A callback to generate the JSON.
query (dict or None): Query arguments.
ignore_backoff (bool): true to ignore the historical backoff data
and try the request anyway.
backoff_on_404 (bool): Back off if we get a 404
@ -146,22 +157,29 @@ class MatrixFederationHttpClient(object):
ignore_backoff=ignore_backoff,
)
destination = destination.encode("ascii")
headers_dict = {}
path_bytes = path.encode("ascii")
with limiter:
headers_dict[b"User-Agent"] = [self.version_string]
headers_dict[b"Host"] = [destination]
if query:
query_bytes = encode_query_args(query)
else:
query_bytes = b""
url_bytes = self._create_url(
destination, path_bytes, param_bytes, query_bytes
)
headers_dict = {
"User-Agent": [self.version_string],
"Host": [destination],
}
with limiter:
url = self._create_url(
destination.encode("ascii"), path_bytes, param_bytes, query_bytes
).decode('ascii')
txn_id = "%s-O-%s" % (method, self._next_id)
self._next_id = (self._next_id + 1) % (sys.maxint - 1)
self._next_id = (self._next_id + 1) % (MAXINT - 1)
outbound_logger.info(
"{%s} [%s] Sending request: %s %s",
txn_id, destination, method, url_bytes
txn_id, destination, method, url
)
# XXX: Would be much nicer to retry only at the transaction-layer
@ -171,23 +189,33 @@ class MatrixFederationHttpClient(object):
else:
retries_left = MAX_SHORT_RETRIES
http_url_bytes = urlparse.urlunparse(
("", "", path_bytes, param_bytes, query_bytes, "")
)
http_url = urllib.parse.urlunparse(
(b"", b"", path_bytes, param_bytes, query_bytes, b"")
).decode('ascii')
log_result = None
try:
while True:
producer = None
if body_callback:
producer = body_callback(method, http_url_bytes, headers_dict)
try:
request_deferred = self.agent.request(
if json_callback:
json = json_callback()
if json:
data = encode_canonical_json(json)
headers_dict["Content-Type"] = ["application/json"]
self.sign_request(
destination, method, http_url, headers_dict, json
)
else:
data = None
self.sign_request(destination, method, http_url, headers_dict)
request_deferred = treq.request(
method,
url_bytes,
Headers(headers_dict),
producer
url,
headers=Headers(headers_dict),
data=data,
agent=self.agent,
)
add_timeout_to_deferred(
request_deferred,
@ -218,7 +246,7 @@ class MatrixFederationHttpClient(object):
txn_id,
destination,
method,
url_bytes,
url,
_flatten_response_never_received(e),
)
@ -252,7 +280,7 @@ class MatrixFederationHttpClient(object):
# :'(
# Update transactions table?
with logcontext.PreserveLoggingContext():
body = yield readBody(response)
body = yield treq.content(response)
raise HttpResponseException(
response.code, response.phrase, body
)
@ -297,11 +325,11 @@ class MatrixFederationHttpClient(object):
auth_headers = []
for key, sig in request["signatures"][self.server_name].items():
auth_headers.append(bytes(
auth_headers.append((
"X-Matrix origin=%s,key=\"%s\",sig=\"%s\"" % (
self.server_name, key, sig,
)).encode('ascii')
)
))
headers_dict[b"Authorization"] = auth_headers
@ -347,24 +375,14 @@ class MatrixFederationHttpClient(object):
"""
if not json_data_callback:
def json_data_callback():
return data
def body_callback(method, url_bytes, headers_dict):
json_data = json_data_callback()
self.sign_request(
destination, method, url_bytes, headers_dict, json_data
)
producer = _JsonProducer(json_data)
return producer
json_data_callback = lambda: data
response = yield self._request(
destination,
"PUT",
path,
body_callback=body_callback,
headers_dict={"Content-Type": ["application/json"]},
query_bytes=encode_query_args(args),
json_callback=json_data_callback,
query=args,
long_retries=long_retries,
timeout=timeout,
ignore_backoff=ignore_backoff,
@ -376,8 +394,8 @@ class MatrixFederationHttpClient(object):
check_content_type_is_json(response.headers)
with logcontext.PreserveLoggingContext():
body = yield readBody(response)
defer.returnValue(json.loads(body))
body = yield treq.json_content(response)
defer.returnValue(body)
@defer.inlineCallbacks
def post_json(self, destination, path, data={}, long_retries=False,
@ -410,20 +428,12 @@ class MatrixFederationHttpClient(object):
Fails with ``FederationDeniedError`` if this destination
is not on our federation whitelist
"""
def body_callback(method, url_bytes, headers_dict):
self.sign_request(
destination, method, url_bytes, headers_dict, data
)
return _JsonProducer(data)
response = yield self._request(
destination,
"POST",
path,
query_bytes=encode_query_args(args),
body_callback=body_callback,
headers_dict={"Content-Type": ["application/json"]},
query=args,
json=data,
long_retries=long_retries,
timeout=timeout,
ignore_backoff=ignore_backoff,
@ -434,9 +444,9 @@ class MatrixFederationHttpClient(object):
check_content_type_is_json(response.headers)
with logcontext.PreserveLoggingContext():
body = yield readBody(response)
body = yield treq.json_content(response)
defer.returnValue(json.loads(body))
defer.returnValue(body)
@defer.inlineCallbacks
def get_json(self, destination, path, args=None, retry_on_dns_fail=True,
@ -471,16 +481,11 @@ class MatrixFederationHttpClient(object):
logger.debug("Query bytes: %s Retry DNS: %s", args, retry_on_dns_fail)
def body_callback(method, url_bytes, headers_dict):
self.sign_request(destination, method, url_bytes, headers_dict)
return None
response = yield self._request(
destination,
"GET",
path,
query_bytes=encode_query_args(args),
body_callback=body_callback,
query=args,
retry_on_dns_fail=retry_on_dns_fail,
timeout=timeout,
ignore_backoff=ignore_backoff,
@ -491,9 +496,9 @@ class MatrixFederationHttpClient(object):
check_content_type_is_json(response.headers)
with logcontext.PreserveLoggingContext():
body = yield readBody(response)
body = yield treq.json_content(response)
defer.returnValue(json.loads(body))
defer.returnValue(body)
@defer.inlineCallbacks
def delete_json(self, destination, path, long_retries=False,
@ -523,13 +528,11 @@ class MatrixFederationHttpClient(object):
Fails with ``FederationDeniedError`` if this destination
is not on our federation whitelist
"""
response = yield self._request(
destination,
"DELETE",
path,
query_bytes=encode_query_args(args),
headers_dict={"Content-Type": ["application/json"]},
query=args,
long_retries=long_retries,
timeout=timeout,
ignore_backoff=ignore_backoff,
@ -540,9 +543,9 @@ class MatrixFederationHttpClient(object):
check_content_type_is_json(response.headers)
with logcontext.PreserveLoggingContext():
body = yield readBody(response)
body = yield treq.json_content(response)
defer.returnValue(json.loads(body))
defer.returnValue(body)
@defer.inlineCallbacks
def get_file(self, destination, path, output_stream, args={},
@ -569,26 +572,11 @@ class MatrixFederationHttpClient(object):
Fails with ``FederationDeniedError`` if this destination
is not on our federation whitelist
"""
encoded_args = {}
for k, vs in args.items():
if isinstance(vs, string_types):
vs = [vs]
encoded_args[k] = [v.encode("UTF-8") for v in vs]
query_bytes = urllib.urlencode(encoded_args, True)
logger.debug("Query bytes: %s Retry DNS: %s", query_bytes, retry_on_dns_fail)
def body_callback(method, url_bytes, headers_dict):
self.sign_request(destination, method, url_bytes, headers_dict)
return None
response = yield self._request(
destination,
"GET",
path,
query_bytes=query_bytes,
body_callback=body_callback,
query=args,
retry_on_dns_fail=retry_on_dns_fail,
ignore_backoff=ignore_backoff,
)
@ -639,30 +627,6 @@ def _readBodyToFile(response, stream, max_size):
return d
class _JsonProducer(object):
""" Used by the twisted http client to create the HTTP body from json
"""
def __init__(self, jsn):
self.reset(jsn)
def reset(self, jsn):
self.body = encode_canonical_json(jsn)
self.length = len(self.body)
def startProducing(self, consumer):
consumer.write(self.body)
return defer.succeed(None)
def pauseProducing(self):
pass
def stopProducing(self):
pass
def resumeProducing(self):
pass
def _flatten_response_never_received(e):
if hasattr(e, "reasons"):
reasons = ", ".join(
@ -693,7 +657,7 @@ def check_content_type_is_json(headers):
"No Content-Type header"
)
c_type = c_type[0] # only the first header
c_type = c_type[0].decode('ascii') # only the first header
val, options = cgi.parse_header(c_type)
if val != "application/json":
raise RuntimeError(
@ -711,6 +675,6 @@ def encode_query_args(args):
vs = [vs]
encoded_args[k] = [v.encode("UTF-8") for v in vs]
query_bytes = urllib.urlencode(encoded_args, True)
query_bytes = urllib.parse.urlencode(encoded_args, True)
return query_bytes
return query_bytes.encode('utf8')

4
synapse/http/site.py
View File

@ -204,14 +204,14 @@ class SynapseRequest(Request):
self.start_time = time.time()
self.request_metrics = RequestMetrics()
self.request_metrics.start(
self.start_time, name=servlet_name, method=self.method,
self.start_time, name=servlet_name, method=self.method.decode('ascii'),
)
self.site.access_logger.info(
"%s - %s - Received request: %s %s",
self.getClientIP(),
self.site.site_tag,
self.method,
self.method.decode('ascii'),
self.get_redacted_uri()
)

1
synapse/python_dependencies.py
View File

@ -40,6 +40,7 @@ REQUIREMENTS = {
"pynacl>=1.2.1": ["nacl>=1.2.1", "nacl.bindings"],
"service_identity>=1.0.0": ["service_identity>=1.0.0"],
"Twisted>=17.1.0": ["twisted>=17.1.0"],
"treq>=15.1": ["treq>=15.1"],
# We use crypto.get_elliptic_curve which is only supported in >=0.15
"pyopenssl>=0.15": ["OpenSSL>=0.15"],