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fix: disable NC rate limiting in dev/CI and add token endpoint diagnostics

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Disable Nextcloud's bruteforce protection and rate limiting via a new
post-installation hook, preventing 429 errors during repeated DCR calls
in CI. Add warning-level logging to all 8 error paths in the AS proxy
token endpoint to make login-flow 400 errors diagnosable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Chris Coutinho
2026-03-03 08:57:02 +01:00
parent f43343356e
commit 1fae6920be
2 changed files with 35 additions and 0 deletions
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nextcloud_mcp_server/auth/oauth_routes.py
+29
View File
@@ -958,7 +958,17 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
code_verifier = form.get("code_verifier")
client_id = form.get("client_id")
logger.debug(
"AS proxy token: received code=%s client_id=%s redirect_uri=%s "
"code_verifier=%s",
code[:8] + "..." if code else None,
client_id,
redirect_uri,
"present" if code_verifier else "missing",
)
if not code:
logger.warning("AS proxy token: Missing 'code' parameter")
return JSONResponse(
{"error": "invalid_request", "error_description": "code is required"},
status_code=400,
@@ -967,6 +977,10 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
# Look up and consume proxy code (one-time use)
entry = _proxy_codes.pop(code, None)
if not entry:
logger.warning(
"AS proxy token: Invalid or expired code (active_codes=%d)",
len(_proxy_codes),
)
return JSONResponse(
{
"error": "invalid_grant",
@@ -976,6 +990,8 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
)
if entry.is_expired:
age = time.time() - entry.created_at
logger.warning("AS proxy token: Proxy code expired (age=%.1fs, TTL=60s)", age)
return JSONResponse(
{
"error": "invalid_grant",
@@ -986,6 +1002,7 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
# Validate client_id (required per RFC 6749 Section 4.1.3)
if not client_id:
logger.warning("AS proxy token: Missing 'client_id' parameter")
return JSONResponse(
{
"error": "invalid_request",
@@ -995,6 +1012,11 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
)
if client_id != entry.client_id:
logger.warning(
"AS proxy token: client_id mismatch (got=%s, expected=%s)",
client_id,
entry.client_id,
)
return JSONResponse(
{
"error": "invalid_grant",
@@ -1005,6 +1027,7 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
# Validate redirect_uri (required per RFC 6749 Section 4.1.3)
if not redirect_uri:
logger.warning("AS proxy token: Missing 'redirect_uri' parameter")
return JSONResponse(
{
"error": "invalid_request",
@@ -1014,6 +1037,11 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
)
if redirect_uri != entry.client_redirect_uri:
logger.warning(
"AS proxy token: redirect_uri mismatch (got=%s, expected=%s)",
redirect_uri,
entry.client_redirect_uri,
)
return JSONResponse(
{
"error": "invalid_grant",
@@ -1028,6 +1056,7 @@ async def _token_authorization_code(request: Request, form) -> JSONResponse:
) # noqa: S101
if not code_verifier:
logger.warning("AS proxy token: Missing 'code_verifier' (PKCE required)")
return JSONResponse(
{
"error": "invalid_grant",