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Refactor the HTTP clients a little.

This commit is contained in:
David Baker 2014-11-20 13:53:34 +00:00
parent cf66532ac1
commit dc60eee50e
4 changed files with 82 additions and 86 deletions

View file

@ -26,7 +26,7 @@ from twisted.web.server import Site
from synapse.http.server import JsonResource, RootRedirect
from synapse.http.content_repository import ContentRepoResource
from synapse.http.server_key_resource import LocalKey
from synapse.http.client import MatrixHttpClient
from synapse.http.client import MatrixFederationHttpClient
from synapse.api.urls import (
CLIENT_PREFIX, FEDERATION_PREFIX, WEB_CLIENT_PREFIX, CONTENT_REPO_PREFIX,
SERVER_KEY_PREFIX,
@ -51,7 +51,7 @@ logger = logging.getLogger(__name__)
class SynapseHomeServer(HomeServer):
def build_http_client(self):
return MatrixHttpClient(self)
return MatrixFederationHttpClient(self)
def build_resource_for_client(self):
return JsonResource()

View file

@ -17,7 +17,7 @@ from twisted.internet import defer
from ._base import BaseHandler
from synapse.api.errors import LoginError, Codes
from synapse.http.client import IdentityServerHttpClient
from synapse.http.client import SimpleHttpClient
from synapse.util.emailutils import EmailException
import synapse.util.emailutils as emailutils
@ -97,7 +97,7 @@ class LoginHandler(BaseHandler):
@defer.inlineCallbacks
def _query_email(self, email):
httpCli = IdentityServerHttpClient(self.hs)
httpCli = SimpleHttpClient(self.hs)
data = yield httpCli.get_json(
'matrix.org:8090', # TODO FIXME This should be configurable.
"/_matrix/identity/api/v1/lookup?medium=email&address=" +

View file

@ -22,7 +22,7 @@ from synapse.api.errors import (
)
from ._base import BaseHandler
import synapse.util.stringutils as stringutils
from synapse.http.client import IdentityServerHttpClient
from synapse.http.client import SimpleHttpClient
from synapse.http.client import CaptchaServerHttpClient
import base64
@ -159,7 +159,7 @@ class RegistrationHandler(BaseHandler):
def _threepid_from_creds(self, creds):
# TODO: get this from the homeserver rather than creating a new one for
# each request
httpCli = IdentityServerHttpClient(self.hs)
httpCli = SimpleHttpClient(self.hs)
# XXX: make this configurable!
trustedIdServers = ['matrix.org:8090']
if not creds['idServer'] in trustedIdServers:
@ -178,7 +178,7 @@ class RegistrationHandler(BaseHandler):
@defer.inlineCallbacks
def _bind_threepid(self, creds, mxid):
httpCli = IdentityServerHttpClient(self.hs)
httpCli = SimpleHttpClient(self.hs)
data = yield httpCli.post_urlencoded_get_json(
creds['idServer'],
"/_matrix/identity/api/v1/3pid/bind",

View file

@ -154,16 +154,81 @@ class BaseHttpClient(object):
defer.returnValue(response)
class MatrixHttpClient(BaseHttpClient):
""" Wrapper around the twisted HTTP client api. Implements
class SimpleHttpClient(BaseHttpClient):
"""
A simple, no-frills HTTP client with methods that wrap up common ways of using HTTP in Matrix
"""
def _getEndpoint(self, reactor, destination):
return matrix_endpoint(reactor, destination, timeout=10)
@defer.inlineCallbacks
def post_urlencoded_get_json(self, destination, path, args={}):
logger.debug("post_urlencoded_get_json args: %s", args)
query_bytes = urllib.urlencode(args, True)
def body_callback(method, url_bytes, headers_dict):
return FileBodyProducer(StringIO(query_bytes))
response = yield self._create_request(
destination.encode("ascii"),
"POST",
path.encode("ascii"),
body_callback=body_callback,
headers_dict={
"Content-Type": ["application/x-www-form-urlencoded"]
}
)
body = yield readBody(response)
defer.returnValue(json.loads(body))
@defer.inlineCallbacks
def get_json(self, destination, path, args={}, retry_on_dns_fail=True):
""" Get's some json from the given host and path
Args:
destination (str): The remote server to send the HTTP request to.
path (str): The HTTP path.
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.
"""
logger.debug("get_json args: %s", args)
query_bytes = urllib.urlencode(args, True)
logger.debug("Query bytes: %s Retry DNS: %s", args, retry_on_dns_fail)
response = yield self._create_request(
destination.encode("ascii"),
"GET",
path.encode("ascii"),
query_bytes=query_bytes,
retry_on_dns_fail=retry_on_dns_fail,
body_callback=None
)
body = yield readBody(response)
defer.returnValue(json.loads(body))
class MatrixFederationHttpClient(BaseHttpClient):
"""HTTP client used to talk to other homeservers over the federation protocol.
Send client certificates and signs requests.
Attributes:
agent (twisted.web.client.Agent): The twisted Agent used to send the
requests.
"""
RETRY_DNS_LOOKUP_FAILURES = "__retry_dns"
def __init__(self, hs):
self.signing_key = hs.config.signing_key[0]
self.server_name = hs.hostname
@ -293,83 +358,17 @@ class MatrixHttpClient(BaseHttpClient):
)
class IdentityServerHttpClient(BaseHttpClient):
"""Separate HTTP client for talking to the Identity servers since they
don't use SRV records and talk x-www-form-urlencoded rather than JSON.
"""
def _getEndpoint(self, reactor, destination):
#TODO: This should be talking TLS
return matrix_endpoint(reactor, destination, timeout=10)
@defer.inlineCallbacks
def post_urlencoded_get_json(self, destination, path, args={}):
logger.debug("post_urlencoded_get_json args: %s", args)
query_bytes = urllib.urlencode(args, True)
def body_callback(method, url_bytes, headers_dict):
return FileBodyProducer(StringIO(query_bytes))
response = yield self._create_request(
destination.encode("ascii"),
"POST",
path.encode("ascii"),
body_callback=body_callback,
headers_dict={
"Content-Type": ["application/x-www-form-urlencoded"]
}
)
body = yield readBody(response)
defer.returnValue(json.loads(body))
@defer.inlineCallbacks
def get_json(self, destination, path, args={}, retry_on_dns_fail=True):
""" Get's some json from the given host homeserver and path
Args:
destination (str): The remote server to send the HTTP request
to.
path (str): The HTTP path.
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.
"""
logger.debug("get_json args: %s", args)
query_bytes = urllib.urlencode(args, True)
logger.debug("Query bytes: %s Retry DNS: %s", args, retry_on_dns_fail)
response = yield self._create_request(
destination.encode("ascii"),
"GET",
path.encode("ascii"),
query_bytes=query_bytes,
retry_on_dns_fail=retry_on_dns_fail,
body_callback=None
)
body = yield readBody(response)
defer.returnValue(json.loads(body))
class CaptchaServerHttpClient(BaseHttpClient):
"""Separate HTTP client for talking to google's captcha servers"""
"""
Separate HTTP client for talking to google's captcha servers
Only slightly special because accepts partial download responses
"""
def _getEndpoint(self, reactor, destination):
return matrix_endpoint(reactor, destination, timeout=10)
@defer.inlineCallbacks
def post_urlencoded_get_raw(self, destination, path, accept_partial=False,
args={}):
def post_urlencoded_get_raw(self, destination, path, args={}):
query_bytes = urllib.urlencode(args, True)
def body_callback(method, url_bytes, headers_dict):
@ -389,10 +388,7 @@ class CaptchaServerHttpClient(BaseHttpClient):
body = yield readBody(response)
defer.returnValue(body)
except PartialDownloadError as e:
if accept_partial:
defer.returnValue(e.response)
else:
raise e
defer.returnValue(e.response)
def _print_ex(e):