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Fix existing v2 identity server calls (MSC2140) (#6013)

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Two things I missed while implementing [MSC2140](https://github.com/matrix-org/matrix-doc/pull/2140/files#diff-c03a26de5ac40fb532de19cb7fc2aaf7R80).

1. Access tokens should be provided to the identity server as `access_token`, not `id_access_token`, even though the homeserver may accept the tokens as `id_access_token`.
2. Access tokens must be sent to the identity server in a query parameter, the JSON body is not allowed.

We now send the access token as part of an `Authorization: ...` header, which fixes both things.

The breaking code was added in https://github.com/matrix-org/synapse/pull/5892

Sytest PR: https://github.com/matrix-org/sytest/pull/697
This commit is contained in:
Andrew Morgan 2019-09-11 11:59:45 +01:00 committed by GitHub
parent cd17a2085e
commit 3505ffcda7
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2 changed files with 27 additions and 2 deletions
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1
changelog.d/6013.misc Normal file
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@ -0,0 +1 @@
Compatibility with v2 Identity Service APIs other than /lookup.

28
synapse/handlers/identity.py
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@ -74,6 +74,25 @@ class IdentityHandler(BaseHandler):
id_access_token = creds.get("id_access_token")
return client_secret, id_server, id_access_token
def create_id_access_token_header(self, id_access_token):
"""Create an Authorization header for passing to SimpleHttpClient as the header value
of an HTTP request.
Args:
id_access_token (str): An identity server access token.
Returns:
list[str]: The ascii-encoded bearer token encased in a list.
"""
# Prefix with Bearer
bearer_token = "Bearer %s" % id_access_token
# Encode headers to standard ascii
bearer_token.encode("ascii")
# Return as a list as that's how SimpleHttpClient takes header values
return [bearer_token]
@defer.inlineCallbacks
def threepid_from_creds(self, id_server, creds):
"""
@ -155,15 +174,20 @@ class IdentityHandler(BaseHandler):
use_v2 = False
# Decide which API endpoint URLs to use
headers = {}
bind_data = {"sid": sid, "client_secret": client_secret, "mxid": mxid}
if use_v2:
bind_url = "https://%s/_matrix/identity/v2/3pid/bind" % (id_server,)
bind_data["id_access_token"] = id_access_token
headers["Authorization"] = self.create_id_access_token_header(
id_access_token
)
else:
bind_url = "https://%s/_matrix/identity/api/v1/3pid/bind" % (id_server,)
try:
data = yield self.http_client.post_json_get_json(bind_url, bind_data)
data = yield self.http_client.post_json_get_json(
bind_url, bind_data, headers=headers
)
logger.debug("bound threepid %r to %s", creds, mxid)
# Remember where we bound the threepid