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authorDavid Robertson <davidr@element.io>2022-09-21 22:23:44 +0100
committerGitHub <noreply@github.com>2022-09-21 22:23:44 +0100
commit1a1abdda42551dad3aadc04a169c25f4cc651a2c (patch)
treef01a59877a3227538d71d541233b29a67b93013f
parentAdd version flag for MSC3881 (#13860) (diff)
downloadsynapse-1a1abdda42551dad3aadc04a169c25f4cc651a2c.tar.xz
Last batch of Pydantic for synapse/rest/client/account.py (#13832)
* Validation for `/add_threepid/msisdn/submit_token`

* Don't validate deprecated endpoint

* Changelog
-rw-r--r--changelog.d/13832.feature1
-rw-r--r--synapse/rest/client/account.py19
2 files changed, 14 insertions, 6 deletions
diff --git a/changelog.d/13832.feature b/changelog.d/13832.feature
new file mode 100644
index 0000000000..1dc1d66efe
--- /dev/null
+++ b/changelog.d/13832.feature
@@ -0,0 +1 @@
+Improve validation for the unspecced, internal-only `_matrix/client/unstable/add_threepid/msisdn/submit_token` endpoint.
diff --git a/synapse/rest/client/account.py b/synapse/rest/client/account.py
index 2db2a04f95..44f622bcce 100644
--- a/synapse/rest/client/account.py
+++ b/synapse/rest/client/account.py
@@ -534,6 +534,11 @@ class AddThreepidMsisdnSubmitTokenServlet(RestServlet):
         "/add_threepid/msisdn/submit_token$", releases=(), unstable=True
     )
 
+    class PostBody(RequestBodyModel):
+        client_secret: ClientSecretStr
+        sid: StrictStr
+        token: StrictStr
+
     def __init__(self, hs: "HomeServer"):
         super().__init__()
         self.config = hs.config
@@ -549,16 +554,14 @@ class AddThreepidMsisdnSubmitTokenServlet(RestServlet):
                 "instead.",
             )
 
-        body = parse_json_object_from_request(request)
-        assert_params_in_dict(body, ["client_secret", "sid", "token"])
-        assert_valid_client_secret(body["client_secret"])
+        body = parse_and_validate_json_object_from_request(request, self.PostBody)
 
         # Proxy submit_token request to msisdn threepid delegate
         response = await self.identity_handler.proxy_msisdn_submit_token(
             self.config.registration.account_threepid_delegate_msisdn,
-            body["client_secret"],
-            body["sid"],
-            body["token"],
+            body.client_secret,
+            body.sid,
+            body.token,
         )
         return 200, response
 
@@ -581,6 +584,10 @@ class ThreepidRestServlet(RestServlet):
 
         return 200, {"threepids": threepids}
 
+    # NOTE(dmr): I have chosen not to use Pydantic to parse this request's body, because
+    # the endpoint is deprecated. (If you really want to, you could do this by reusing
+    # ThreePidBindRestServelet.PostBody with an `alias_generator` to handle
+    # `threePidCreds` versus `three_pid_creds`.
     async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
         if not self.hs.config.registration.enable_3pid_changes:
             raise SynapseError(