Docstrings for BaseFederationServlet

... to save me reverse-engineering this stuff again.
This commit is contained in:
Richard van der Hoff 2018-08-03 16:04:29 +01:00
parent 8a86d7ea96
commit 15c1ae45e5
1 changed files with 47 additions and 0 deletions

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@ -190,6 +190,41 @@ def _parse_auth_header(header_bytes):
class BaseFederationServlet(object):
"""Abstract base class for federation servlet classes.
The servlet object should have a PATH attribute which takes the form of a regexp to
match against the request path (excluding the /federation/v1 prefix).
The servlet should also implement one or more of on_GET, on_POST, on_PUT, to match
the appropriate HTTP method. These methods have the signature:
on_<METHOD>(self, origin, content, query, **kwargs)
With arguments:
origin (unicode|None): The authenticated server_name of the calling server,
unless REQUIRE_AUTH is set to False and authentication failed.
content (unicode|None): decoded json body of the request. None if the
request was a GET.
query (dict[bytes, list[bytes]]): Query params from the request. url-decoded
(ie, '+' and '%xx' are decoded) but note that it is *not* utf8-decoded
yet.
**kwargs (dict[unicode, unicode]): the dict mapping keys to path
components as specified in the path match regexp.
Returns:
Deferred[(int, object)|None]: either (response code, response object) to
return a JSON response, or None if the request has already been handled.
Raises:
SynapseError: to return an error code
Exception: other exceptions will be caught, logged, and a 500 will be
returned.
"""
REQUIRE_AUTH = True
def __init__(self, handler, authenticator, ratelimiter, server_name):
@ -204,6 +239,18 @@ class BaseFederationServlet(object):
@defer.inlineCallbacks
@functools.wraps(func)
def new_func(request, *args, **kwargs):
""" A callback which can be passed to HttpServer.RegisterPaths
Args:
request (twisted.web.http.Request):
*args: unused?
**kwargs (dict[unicode, unicode]): the dict mapping keys to path
components as specified in the path match regexp.
Returns:
Deferred[(int, object)|None]: (response code, response object) as returned
by the callback method. None if the request has already been handled.
"""
content = None
if request.method in ["PUT", "POST"]:
# TODO: Handle other method types? other content types?