test(mcp): replace the live Linear MCP OAuth e2e tests with integration coverage (#47154)

* test(mcp): move the MCP OAuth happy path from a live Linear e2e to an integration test

GitHub Actions now runs unit tests only, and the MCP OAuth happy path needed a
captured Linear browser login to click through a real consent page. The OAuth
flows it exercised are already integration tests against an owned
authorization-server double, except one behavior: the stored per-user token
must be served by a proxy process that never saw the consent, with no shared
Redis to fall back on. That case is now in test_mcp_oauth_flows.py

The e2e test, its owned-gateway helper, its workflow, the mcp_oauth_live marker
and the JUnit gate script only that workflow used are removed

* test(mcp): chat completions run an OAuth server tool with the caller's own stored token

* test(e2e): drop the Linear chat-completion MCP OAuth e2e and its helpers

The behavior it checked, a chat completion running an OAuth server's tool with
the caller's stored per-user token, is now an integration test in
test_mcp_llm_endpoints.py that needs no saved Linear browser login

* test(mcp): decode the stored per-user credential as urlsafe base64

The plaintext check used b64decode, which drops the - and _ of a urlsafe value
and raised on roughly one ciphertext in five

* test(mcp): drop the chat OAuth integration test that duplicates test_mcp_slots F2-chat

security/test_mcp_slots.py already sends a per-user OAuth token through
/v1/chat/completions and asserts the peer receives it. Every mutant the new test
killed was also killed by the existing suite, so it added no signal
This commit is contained in:
yuneng-jiang 2026-10-17 14:29:59 -07:00 • committed by GitHub
parent b3c0f3457d
commit 44fcbc30b0
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20 changed files with 61 additions and 1674 deletions

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@ -1,69 +0,0 @@
import os
import re
import sys
import xml.etree.ElementTree as ET
from pathlib import Path
from typing import Final
sys.path.insert(0, str(Path(__file__).resolve().parents[2] / "tests/e2e"))
from coverage_registry.management_cases import MANAGEMENT_CASES
def main() -> int:
selected: Final = tuple(sys.argv[2:])
try:
report: Final = ET.parse(Path(sys.argv[1])).getroot()
except (ET.ParseError, OSError):
_ = sys.stdout.write("::error::could not read the test execution report\n")
return 1
cases: Final = tuple(report.iter("testcase"))
expected_count: Final = os.environ.get("E2E_REQUIRED_TEST_COUNT")
passed: Final = frozenset(
case.get("file") for case in cases if all(case.find(tag) is None for tag in ("skipped", "failure", "error"))
)
missing: Final = tuple(path for path in selected if path not in passed)
required_nodes: Final = frozenset(case.node for case in MANAGEMENT_CASES if case.node.split("::", 1)[0] in selected)
passed_nodes: Final = frozenset(
prop.get("value")
for case in cases
if all(case.find(tag) is None for tag in ("skipped", "failure", "error"))
for prop in case.findall("./properties/property")
if prop.get("name") == "management_node"
)
missing_nodes: Final = required_nodes - passed_nodes
for node in sorted(missing_nodes):
_ = sys.stdout.write(f"::error::required management case did not pass: {node}\n")
for path in selected:
collected: Final = sum(case.get("file") == path for case in cases)
skipped: Final = sum(case.get("file") == path and case.find("skipped") is not None for case in cases)
_ = sys.stdout.write(f"{path}: {collected} collected, {skipped} skipped\n")
for case in cases:
if case.get("file") != path or all(case.find(tag) is None for tag in ("failure", "error", "skipped")):
continue
outcome = "skipped" if case.find("skipped") is not None else "failed"
_ = sys.stdout.write(f" {outcome}: {case.get('classname', '')}::{case.get('name', '')}\n")
for prop in case.findall("./properties/property"):
name = prop.get("name", "")
value = prop.get("value", "")
if name in ("oauth_failure_phase", "oauth_exception_type", "oauth_frame") and re.fullmatch(
r"[A-Za-z0-9_.:<>-]{1,240}", value
):
_ = sys.stdout.write(f" {name}: {value}\n")
if expected_count is not None and (
len(cases) != int(expected_count) or any(case.find("skipped") is not None for case in cases)
):
_ = sys.stdout.write("::error::required test count was not met or a required case was skipped\n")
return 1
if (
selected
and not missing
and not missing_nodes
and not any(case.find(tag) is not None for case in cases for tag in ("failure", "error"))
):
return 0
_ = sys.stdout.write("::error::every selected file must execute a passing test, with no failures or errors\n")
return 1
if __name__ == "__main__":
sys.exit(main())

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@ -539,8 +539,8 @@ jobs:
- name: test_unit_passed_gate
run: uv run --no-sync pytest -q --noconftest -p no:cacheprovider -c /dev/null tests/code_coverage_tests/test_unit_passed_gate.py
- name: test_e2e_changed_gate
run: uv run --no-sync pytest -q --noconftest -p no:cacheprovider -c /dev/null tests/code_coverage_tests/test_e2e_changed_gate.py tests/code_coverage_tests/test_e2e_idp_stack.py
- name: test_e2e_idp_stack
run: uv run --no-sync pytest -q --noconftest -p no:cacheprovider -c /dev/null tests/code_coverage_tests/test_e2e_idp_stack.py
- name: test_e2e_metadata
env:

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@ -1,180 +0,0 @@
name: MCP OAuth happy path
on:
pull_request:
paths:
- '.github/workflows/test-mcp-oauth-e2e.yml'
- '.github/e2e-stack/**'
- 'tests/e2e/*.py'
- 'tests/e2e/pytest.ini'
- 'tests/e2e/idp_realm.json'
- 'tests/e2e/mcp/**'
- 'litellm/experimental_mcp_client/**'
- 'litellm/proxy/_experimental/mcp_server/**'
- 'litellm/proxy/auth/**'
- 'litellm/proxy/management_endpoints/mcp_management_endpoints.py'
- 'litellm/proxy/_types.py'
- 'litellm/types/mcp_server/mcp_server_manager.py'
- 'litellm/proxy/management_endpoints/*sso*.py'
- 'litellm/proxy/management_endpoints/sso/**'
- 'litellm/proxy/common_utils/encrypt_decrypt_utils.py'
- 'litellm/proxy/proxy_server.py'
- 'litellm/proxy/schema.prisma'
- 'ui/litellm-dashboard/src/app/connect/**'
- 'ui/litellm-dashboard/src/app/mcp/oauth/**'
- 'pyproject.toml'
- 'uv.lock'
workflow_dispatch:
permissions: {}
concurrency:
group: mcp-oauth-${{ github.ref }}
cancel-in-progress: true
jobs:
oauth:
if: github.event_name == 'workflow_dispatch' || github.event.pull_request.head.repo.full_name == github.repository
runs-on: ubuntu-latest
environment: e2e-changed
timeout-minutes: 45
permissions:
contents: read
id-token: write
services:
postgres:
image: postgres:16.6
env:
POSTGRES_USER: litellm
POSTGRES_PASSWORD: dbpassword9090
POSTGRES_DB: litellm
ports:
- 5432:5432
options: >-
--health-cmd "pg_isready -U litellm"
--health-interval 5s
--health-timeout 5s
--health-retries 10
env:
DATABASE_HOST: 127.0.0.1
DATABASE_PORT: '5432'
DATABASE_USER: litellm
DATABASE_PASSWORD: dbpassword9090
DATABASE_NAME: litellm
DATABASE_URL: postgresql://litellm:dbpassword9090@127.0.0.1:5432/litellm
E2E_KEYCLOAK_URL: http://127.0.0.1:8081
E2E_KEYCLOAK_ADMIN_USER: admin
E2E_KEYCLOAK_ADMIN_PASSWORD: e2e-ephemeral-idp-not-a-secret
E2E_FIXTURE_MODE: live
E2E_PROVIDER_CACHE: '0'
E2E_MCP_OAUTH_LIVE: '1'
E2E_REQUIRED_TEST_COUNT: '4'
steps:
- name: Checkout the tested source
uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
with:
ref: ${{ github.event.pull_request.head.sha || github.sha }}
persist-credentials: false
- name: Require and materialize the upstream login
env:
STORAGE_STATE: ${{ secrets.E2E_LINEAR_STORAGE_STATE_B64 }}
run: |
umask 077
python3 - <<'PY'
import base64
import json
import os
import secrets
from pathlib import Path
encoded = os.environ.get("STORAGE_STATE", "")
if not encoded:
raise SystemExit("E2E_LINEAR_STORAGE_STATE_B64 is required; capture and provision a test-account login")
state = json.loads(base64.b64decode(encoded, validate=True))
if not isinstance(state, dict) or not state.get("cookies"):
raise SystemExit("The captured login must contain browser cookies")
directory = Path(os.environ["RUNNER_TEMP"]) / "mcp-oauth-private"
directory.mkdir(mode=0o700)
path = directory / "linear-state.json"
path.write_text(json.dumps(state))
with open(os.environ["GITHUB_ENV"], "a") as output:
output.write(f"E2E_LINEAR_STORAGE_STATE={path}\n")
for name in ("LITELLM_MASTER_KEY", "LITELLM_SALT_KEY"):
value = "sk-e2e-" + secrets.token_hex(24)
print(f"::add-mask::{value}")
output.write(f"{name}={value}\n")
PY
- uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
with:
python-version: '3.13'
- uses: ./.github/actions/setup-uv-with-retries
with:
version: '0.10.9'
- uses: ./.github/actions/cache-cargo-build
- name: Install the frozen E2E environment
run: |
.github/scripts/uv_sync_with_retries.sh --frozen --extra proxy --extra proxy-runtime --extra extra_proxy --group ci --group proxy-dev --group e2e-dev
uv run --no-sync python scripts/prisma_generate_if_needed.py
uv run --no-sync playwright install --with-deps chromium
- name: Configure license access
id: aws
uses: aws-actions/configure-aws-credentials@e7f100cf4c008499ea8adda475de1042d6975c7b # v6.2.0
with:
role-to-assume: ${{ vars.E2E_AWS_ROLE_TO_ASSUME }}
aws-region: us-east-1
role-session-name: mcp-oauth-${{ github.run_id }}
role-duration-seconds: 900
output-env-credentials: false
output-credentials: true
- name: Load the E2E license
env:
AWS_ACCESS_KEY_ID: ${{ steps.aws.outputs.aws-access-key-id }}
AWS_SECRET_ACCESS_KEY: ${{ steps.aws.outputs.aws-secret-access-key }}
AWS_SESSION_TOKEN: ${{ steps.aws.outputs.aws-session-token }}
AWS_DEFAULT_REGION: us-east-1
run: |
license="$(aws secretsmanager get-secret-value --secret-id litellm-e2e-changed-license --query SecretString --output text)"
test -n "${license}"
echo "::add-mask::${license}"
echo "LITELLM_LICENSE=${license}" >> "${GITHUB_ENV}"
- uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
with:
node-version-file: ui/litellm-dashboard/.nvmrc
- name: Build the gateway consent UI at the tested commit
run: |
cd ui/litellm-dashboard
../../scripts/with_dashboard_node.sh npm ci
../../scripts/with_dashboard_node.sh npm run build
mkdir -p ../../litellm/proxy/_experimental/out
cp -r out/. ../../litellm/proxy/_experimental/out/
find ../../litellm/proxy/_experimental/out -name '*.html' ! -name index.html | while read -r page; do
mkdir -p "${page%.html}"
mv "${page}" "${page%.html}/index.html"
done
- name: Prepare the isolated database and IdP
run: |
umask 077
bash .github/e2e-stack/start-idp.sh
uv run --no-sync python migrations/run.py > "${RUNNER_TEMP}/mcp-oauth-private/migrations.log" 2>&1
- name: Run every required OAuth variant without retries
run: |
umask 077
uv run --no-sync pytest -c tests/e2e/pytest.ini tests/e2e/mcp/test_mcp_oauth_happy_path_e2e.py \
--rootdir=. --reruns 0 --tb=short -o junit_family=xunit1 \
--junitxml="${RUNNER_TEMP}/mcp-oauth-private/results.xml" \
> "${RUNNER_TEMP}/mcp-oauth-private/pytest.log" 2>&1
- name: Report JUnit results and reject skipped or missing cases
if: always()
run: |
uv run --no-sync python .github/e2e-stack/assert_tests_ran.py \
"${RUNNER_TEMP}/mcp-oauth-private/results.xml" tests/e2e/mcp/test_mcp_oauth_happy_path_e2e.py
- name: Remove private login and logs
if: always()
run: |
docker rm -f e2e-keycloak >/dev/null 2>&1 || true
rm -rf "${RUNNER_TEMP}/mcp-oauth-private"

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@ -25,7 +25,6 @@ ALLOWED_RAW_CLIENT_FILES = {
"e2e/e2e_http.py": ("requests",),
"e2e/conftest.py": ("requests",),
"e2e/claude_code/pr_gate_version_resolver.py": ("urllib.request",),
"e2e/mcp/oauth_chat_client.py": ("httpx",),
}
EXCEPTION_ONLY_NAMES = frozenset({"RequestException", "ConnectionError", "Timeout", "HTTPError"})

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@ -1,156 +0,0 @@
import os
import subprocess
import sys
import xml.etree.ElementTree as ET
from pathlib import Path
from typing import Final
import pytest
GATE: Final = Path(__file__).resolve().parents[2] / ".github/e2e-stack/assert_tests_ran.py"
SELECTED: Final = ("tests/e2e/access_control/test_a.py", "tests/e2e/access_control/test_b.py")
@pytest.mark.parametrize(
("second_outcome", "expected_status"),
(("passed", 0), ("skipped", 1), ("failure", 1), ("error", 1), ("deselected", 1)),
)
def test_each_changed_file_must_run(tmp_path: Path, second_outcome: str, expected_status: int) -> None:
suite: Final = ET.Element("testsuite")
_ = ET.SubElement(suite, "testcase", file=SELECTED[0])
if second_outcome != "deselected":
second: Final = ET.SubElement(suite, "testcase", file=SELECTED[1])
if second_outcome != "passed":
_ = ET.SubElement(second, second_outcome)
report: Final = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result: Final = subprocess.run([sys.executable, str(GATE), str(report), *SELECTED], capture_output=True, text=True)
assert result.returncode == expected_status, result.stdout
@pytest.mark.parametrize("outcome", ("failure", "error"))
def test_passing_case_does_not_hide_a_failure_in_the_same_file(tmp_path: Path, outcome: str) -> None:
suite: Final = ET.Element("testsuite")
_ = ET.SubElement(suite, "testcase", file=SELECTED[0])
failed: Final = ET.SubElement(suite, "testcase", file=SELECTED[0])
_ = ET.SubElement(failed, outcome)
report: Final = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result: Final = subprocess.run(
[sys.executable, str(GATE), str(report), SELECTED[0]], capture_output=True, text=True
)
assert result.returncode == 1
def test_failed_cases_are_named_per_selected_file(tmp_path: Path) -> None:
suite: Final = ET.Element("testsuite")
_ = ET.SubElement(suite, "testcase", file=SELECTED[0], classname="tests.e2e.access_control.test_a", name="test_ok")
failed: Final = ET.SubElement(
suite, "testcase", file=SELECTED[0], classname="tests.e2e.access_control.test_a", name="test_boom"
)
_ = ET.SubElement(failed, "failure", message="secret-bearing message")
errored: Final = ET.SubElement(
suite, "testcase", file=SELECTED[1], classname="tests.e2e.access_control.test_b", name="test_setup"
)
_ = ET.SubElement(errored, "error")
report: Final = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result: Final = subprocess.run([sys.executable, str(GATE), str(report), *SELECTED], capture_output=True, text=True)
assert result.returncode == 1
assert " failed: tests.e2e.access_control.test_a::test_boom\n" in result.stdout
assert " failed: tests.e2e.access_control.test_b::test_setup\n" in result.stdout
assert "test_ok" not in result.stdout
assert "secret-bearing message" not in result.stdout
@pytest.mark.parametrize("contents", ("<testsuite/>", "<testsuite", '<testsuite><testcase name="a"/></testsuite>'))
def test_missing_execution_evidence_fails(tmp_path: Path, contents: str) -> None:
report: Final = tmp_path / "report.xml"
_ = report.write_text(contents)
result: Final = subprocess.run([sys.executable, str(GATE), str(report), *SELECTED], capture_output=True, text=True)
assert result.returncode == 1
@pytest.mark.parametrize("omitted_role", ("proxy_admin", "team_member", "internal_user_viewer"))
def test_one_passing_management_case_cannot_hide_a_missing_actor(tmp_path: Path, omitted_role: str) -> None:
suite: Final = ET.Element("testsuite")
path: Final = "tests/e2e/management/test_jwt_management_e2e.py"
case: Final = ET.SubElement(suite, "testcase", file=path)
properties: Final = ET.SubElement(case, "properties")
_ = ET.SubElement(
properties,
"property",
name="management_node",
value=f"{path}::TestJwtManagement::test_actor_subject_and_database_role[proxy_admin_viewer]",
)
report: Final = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result: Final = subprocess.run([sys.executable, str(GATE), str(report), path], capture_output=True, text=True)
assert result.returncode == 1
assert f"test_actor_subject_and_database_role[{omitted_role}]" in result.stdout
@pytest.mark.parametrize("phase", ("setup", "call", "teardown"))
@pytest.mark.parametrize("required_count", ("1", "4"))
def test_oauth_failure_diagnostics_do_not_publish_private_payloads(
tmp_path: Path, phase: str, required_count: str
) -> None:
suite: Final = ET.Element("testsuite")
case: Final = ET.SubElement(suite, "testcase", file=SELECTED[0])
private: Final = "private-token-in-exception-message"
failure: Final = ET.SubElement(case, "failure", message=private)
failure.text = private
properties: Final = ET.SubElement(case, "properties")
for name, value in (
("oauth_failure_phase", phase),
("oauth_exception_type", "AssertionError"),
("oauth_frame", "oauth_gateway.py:120:start"),
("oauth_frame", f"injected\\n{private}"),
("unrelated_property", private),
):
_ = ET.SubElement(properties, "property", name=name, value=value)
report: Final = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result: Final = subprocess.run(
[sys.executable, "-I", str(GATE), str(report), SELECTED[0]],
capture_output=True,
text=True,
env={**os.environ, "E2E_REQUIRED_TEST_COUNT": required_count},
)
assert result.returncode == 1
assert f"oauth_failure_phase: {phase}" in result.stdout
assert "oauth_exception_type: AssertionError" in result.stdout
assert "oauth_frame: oauth_gateway.py:120:start" in result.stdout
assert private not in result.stdout + result.stderr
@pytest.mark.parametrize(
("count", "skip", "expected"), ((0, False, 1), (3, False, 1), (4, False, 0), (5, False, 1), (4, True, 1))
)
def test_required_count_reports_cases_before_rejecting(tmp_path: Path, count: int, skip: bool, expected: int) -> None:
suite = ET.Element("testsuite")
for index in range(count):
case = ET.SubElement(suite, "testcase", file=SELECTED[0], classname="OAuth", name=f"variant{index}")
if skip and index == 0:
ET.SubElement(case, "skipped", message="private-skip-reason")
report = tmp_path / "report.xml"
ET.ElementTree(suite).write(report)
result = subprocess.run(
[sys.executable, "-I", str(GATE), str(report), SELECTED[0]],
env={**os.environ, "E2E_REQUIRED_TEST_COUNT": "4"},
capture_output=True,
text=True,
)
assert result.returncode == expected
assert f"{count} collected, {int(skip)} skipped" in result.stdout
if skip:
assert "skipped: OAuth::variant0" in result.stdout
assert "private-skip-reason" not in result.stdout + result.stderr

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@ -172,12 +172,7 @@ def open_consent() -> None:
raise RuntimeError("consent page timed out")
@pytest.mark.mcp_oauth_live
def test_oauth_dies_on_consent() -> None:
open_consent()
def test_plain_dies_on_consent() -> None:
def test_dies_on_consent() -> None:
open_consent()
"""
@ -353,16 +348,13 @@ class TestStepsReachTheReport:
def test_a_failed_phase_s_own_report_carries_the_steps(tmp_path: Path) -> None:
"""Plugins that read the failed setup or call report, not the teardown one
junitxml writes from, see where the test died too, oauth-live or not."""
junitxml writes from, see where the test died too."""
write_suite(tmp_path, {"test_consent.py": FAILED_PHASE_SUITE, "report_spy.py": REPORT_SPY_PLUGIN})
child: Final = run_child_pytest(tmp_path, "-p", "report_spy", env={"E2E_MCP_OAUTH_LIVE": "1"})
child: Final = run_child_pytest(tmp_path, "-p", "report_spy")
seen_path: Final = tmp_path / "failed-reports.jsonl"
assert seen_path.exists(), f"no failed report reached the spy:\n{child.stdout}\n{child.stderr}"
seen: Final = dict(map(FailedReport.validate_json, seen_path.read_text().splitlines()))
assert seen == {
"test_oauth_dies_on_consent": ("open the consent page",),
"test_plain_dies_on_consent": ("open the consent page",),
}, child.stdout
assert seen == {"test_dies_on_consent": ("open the consent page",)}, child.stdout
class TestDeclaredPropertiesReachTheReport:

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@ -40,7 +40,7 @@ Each subdirectory under `tests/e2e/` is one suite, scoped to an endpoint family
- `quota_management/` - quota enforcement and accounting, one subfolder per behavior: `ratelimit/` (rpm/tpm blocks, window reset, pacing headers on live traffic), `budgets/` (budget definition, enforcement, and reset windows: key, team, tag, soft, multi-window), and `spend_tracking/` (spend logging and cost attribution on `/spend/*`)
- `management/` - key/team/user/organization management routes: create/update/delete persistence via the info routes, team membership, and llm-only-key route denials (API surface, not Playwright)
- `a2a/` - the A2A (agent-to-agent) surface: admin registration via `/v1/agents`, proxy-fronted card discovery at `/.well-known/agent-card.json`, and JSON-RPC `message/send` invocation, driving agents backed by the litellm completion bridge (a real provider) and asserting protocol-version normalization (0.3 vs 1.0)
- `mcp/` - the MCP server surface over api_key auth against the real Datadog remote MCP server (see "MCP suite: real Datadog only" below), plus the gateway-managed OAuth (authorization_code) path exercised through `/chat/completions` in `test_mcp_chat_completion_oauth_e2e.py` and direct MCP protocol operations in `test_mcp_oauth_happy_path_e2e.py`, the one behavior Datadog's static-header auth cannot reach, seeding the per-user upstream token via the interactive authorize dance driven with the mcp SDK's own OAuth client (headless-browser consent from a saved session) and asserting the completion or protocol call lists and executes the server's tools with the stored per-user token
- `mcp/` - the MCP server surface over api_key auth against the real Datadog remote MCP server (see "MCP suite: real Datadog only" below)
- `logging/` - logging-integration delivery (datadog and friends)
- `security/` - secret handling and log-leak protection
- `router/` - routing and reliability behavior (fallbacks, cooldowns) plus the memory tests (`test_reliability_memory_e2e.py`: every worker's RSS as read at collection time, before any test traffic, must sit under a fixed idle budget, the release-gate check for a DB-backed boot that idles near the pod limit the way v1.100.x did, and a few hundred failing requests with retries and fallbacks must not grow proxy RSS past a loose ceiling over the measured batches nor store a request snapshot past a fixed size, the release-gate check for the v1.100.0 retry-breadcrumb leak)
@ -53,14 +53,14 @@ Each subdirectory under `tests/e2e/` is one suite, scoped to an endpoint family
## MCP suite: real Datadog only
Every test under `tests/e2e/mcp/` must exercise the proxy against the real Datadog remote MCP server, except the two Linear OAuth tests `test_mcp_chat_completion_oauth_e2e.py` and `test_mcp_oauth_happy_path_e2e.py`. Do not add a compose service, FastMCP fixture, mock upstream, or any other fake MCP host for this suite
Every test under `tests/e2e/mcp/` must exercise the proxy against the real Datadog remote MCP server. Do not add a compose service, FastMCP fixture, mock upstream, or any other fake MCP host for this suite
- Register via `register_datadog_mcp` in `tests/e2e/mcp/datadog_mcp.py` (or extend that helper if you need a different `toolsets=` / `allowed_tools` slice of the same Datadog endpoint). That posts `/v1/mcp/server` with `url=datadog_mcp_url(...)` and static headers `DD-API-KEY` / `DD-APPLICATION-KEY` from the process env
- Auth is Datadog's documented CI/header path, not a browser OAuth authorize/token dance. Hard-fail when `DD_API_KEY` or `DD_APP_KEY` is missing (`assert_dd_mcp_creds`). Never skip for a missing fake upstream
- Prefer calling real Datadog tools that prove the product path (e.g. `search_datadog_logs` for list/call and permission denials). Seed a unique marker (`e2e-datadog-mcp-*`) in a chat completion when you need a log the tool can find. Dual-read with `dd_logs` from conftest when delivery matters
- Delete the MCP server (and any keys) through `resources.defer` the same way every other suite tears down
- If a new MCP behavior cannot be covered with Datadog's tool surface, say so in the PR and get agreement before inventing another upstream. The default is always Datadog
- The two standing exceptions are `test_mcp_chat_completion_oauth_e2e.py` and `test_mcp_oauth_happy_path_e2e.py`. Datadog authenticates with the static `DD-API-KEY` / `DD-APPLICATION-KEY` headers and exposes no authorize/token dance at all, so these tests drive a real Linear MCP server instead. They are still real remote upstreams, so the no-mock, no-fixture rule above holds unchanged. The direct OAuth test also uses the existing live provider edge to inspect forwarded headers without replay, and owns a separate source-built gateway for cold restarts
- Gateway-managed OAuth (an authorize/token dance and per-user stored tokens) is out of scope here, since Datadog only takes static headers. Those flows are integration tests against an owned authorization-server double, in `tests/integration/mcp/test_mcp_oauth_flows.py` and, for a chat completion calling the tool with the caller's stored token, the F2-chat cases of `tests/integration/security/test_mcp_slots.py`. Do not add a third-party OAuth upstream that needs a saved browser login
## Lay the pattern down in a class
@ -243,7 +243,7 @@ MCPs - endpoint features with the protocol op as the variant
mcp.<operation>.<auth_family>.<assertion>
operation : list_tools | call_tool | list_resources | read_resource | list_prompts | get_prompt
auth_family : none | api_key | bearer | oauth
assertion : succeeds | denied_without_permission | persists_across_processes
assertion : succeeds | denied_without_permission
e.g. mcp.call_tool.oauth.succeeds
```

View file

@ -261,55 +261,3 @@ The semantic header set is `content-type`, `accept`, `anthropic-version`, `anthr
Excluded transport and telemetry headers are `host`, `content-length`, `connection`, `accept-encoding`, `user-agent`, `traceparent`, `tracestate`, `x-request-id`, `x-client-request-id` and `x-stainless-*`. Inbound transfer-encoding is unsupported; send JSON with content-length framing. The destination represents host identity and the relay carries original body bytes. Replay does not verify credentials, SDK timeout/retry behavior, transport performance, model availability or stateful remote IDs. Live relay uses original request bytes and header values, never the stored identity
Strict replay harness regression tests live in `tests/code_coverage_tests/test_provider_replay_harness.py`. The `python` job in `.github/workflows/test-linting.yml` runs them alongside the provider-edge and fixture tests at the root of `tests/e2e_harness/` with `--noconftest -o addopts= -o "pythonpath=tests/e2e tests/e2e_harness" -p no:rerunfailures`; they need only synthetic HTTP providers and temporary fixture storage
## MCP OAuth happy path
`test_mcp_oauth_happy_path_e2e.py` runs one shared scenario with four variants:
aggregate gateway SSO and explicitly configured per-server JWT, each directly
against Linear and through the live provider edge. The edge forwards to real
Linear without replay and compares the forwarded bearer to the encrypted
canonical user/server credential. This observes the forwarding boundary, not
Linear's internal logs. Direct variants independently exercise discovery
Use the existing database preparation, Prisma generation and Keycloak setup.
Build and stage the dashboard from the tested checkout as in the UI runner.
Provide `DATABASE_URL`, `LITELLM_MASTER_KEY`, `LITELLM_SALT_KEY`, `LITELLM_LICENSE`,
and the `E2E_KEYCLOAK_*` settings. Capture a test-account Linear login using
`mcp/linear_session_capture.py` and set `E2E_LINEAR_STORAGE_STATE` to that private
file. The test workspace must contain a team. Do not publish browser state or
raw test/proxy output
```bash
E2E_MCP_OAUTH_LIVE=1 E2E_FIXTURE_MODE=live E2E_PROVIDER_CACHE=0 \
uv run --no-sync pytest tests/e2e/mcp/test_mcp_oauth_happy_path_e2e.py \
--rootdir=. --reruns 0
```
The test starts and restarts its own source-built proxy on a free loopback port,
retaining its database and SSO client but no Redis or process-local cache. It
does not restart an existing proxy or clear shared databases. Gateway login,
consent, immediate list/call and post-restart reconnect must all succeed. The
aggregate client never injects a gateway header; the explicitly labeled JWT
variant configures `x-litellm-api-key` for the first consent and reconnects with
only its gateway JWT after restart
`.github/workflows/test-mcp-oauth-e2e.yml` automatically requests a run for
same-repository pull requests changing MCP, gateway authentication/SSO, consent
UI, dependencies or the relevant E2E harness/workflow paths. It retains manual
`workflow_dispatch` for targeted verification. The four cases run in the
protected `e2e-changed` environment after its normal deployment approval;
reviewers should approve and inspect this separate OAuth check when it appears.
Fork pull requests do not run this credentialed job; use a reviewed
same-repository branch for their verification. The workflow's path-filtered
check is not configured here as a globally required branch-protection check.
Provision `E2E_LINEAR_STORAGE_STATE_B64` as a secret there and retain the existing E2E license/AWS role configuration. A missing or
expired session fails the job; collection, deselection and skips are not passes.
No LLM call is needed
Coverage remains limited to authorization-code OAuth over HTTP. M2M, OBO,
PKCE passthrough, static/BYOK, ID-JAG, forwarding, SigV4 and stdio are outside this
scenario; consult the registry and LIT-3559 for their existing coverage and gaps.
LIT-4506 owns broader isolation/failure regressions. LIT-7737 retains ownership
of dependency/Python compatibility and its matrix; this test reuses its delivered
environment and does not change dependency constraints or compatibility gates

View file

@ -17,7 +17,6 @@ import functools
import os
from collections.abc import Generator, Iterator
from datetime import datetime, timezone
from pathlib import Path
from types import MappingProxyType
from typing import Final
@ -29,7 +28,6 @@ from e2e_config import (
FIXTURE_DIR,
FIXTURE_MODE_RAW,
MANAGED_FILES_OPT_IN_ENV,
MCP_OAUTH_LIVE_OPT_IN_ENV,
OTEL_TLS_OPT_IN_ENV,
OTEL_V2_OPT_IN_ENV,
OWNED_GATEWAY_OPT_IN_ENV,
@ -72,7 +70,6 @@ OPT_IN_MARKERS: Final = MappingProxyType(
"redis_chaos": PERF_TESTS_OPT_IN_ENV,
"perf": PERF_TESTS_OPT_IN_ENV,
"cli_determinism": CLI_DETERMINISM_OPT_IN_ENV,
"mcp_oauth_live": MCP_OAUTH_LIVE_OPT_IN_ENV,
"provider_edge_host": PROVIDER_EDGE_HOST_OPT_IN_ENV,
"owned_gateway": OWNED_GATEWAY_OPT_IN_ENV,
"otel_v2": OTEL_V2_OPT_IN_ENV,
@ -170,11 +167,6 @@ def pytest_configure(config: pytest.Config) -> None:
"quiet_stack: measures the proxy itself, so it runs while no other test on this host is hitting the stack; "
"every other test waits for it to finish",
)
config.addinivalue_line(
"markers",
"mcp_oauth_live: real Linear OAuth consent via a captured browser session; deselected unless "
"E2E_MCP_OAUTH_LIVE is set",
)
config.addinivalue_line(
"markers",
"provider_edge_host: routes provider traffic through the pytest host's edge in every fixture mode, so the "
@ -331,8 +323,6 @@ def pytest_runtest_setup(item: pytest.Item) -> None:
item.user_properties.extend(item.config.stash[_IDLE_RSS].junit_properties)
if not _reaches_proxy(item):
return
if isinstance(item, pytest.Function) and "oauth_gateway" in item.fixturenames:
return
reason = _proxy_fail_reason()
if reason is not None:
pytest.fail(reason)
@ -376,12 +366,6 @@ def pytest_runtest_makereport(
report = yield
if report.when in ("setup", "call"):
attach_step_properties(item)
if item.get_closest_marker("mcp_oauth_live") is not None and call.excinfo is not None:
# Publish code locations only, never exception messages, source text or locals.
item.user_properties.append(("oauth_failure_phase", report.when))
item.user_properties.append(("oauth_exception_type", call.excinfo.type.__name__))
for entry in call.excinfo.traceback:
item.user_properties.append(("oauth_frame", f"{Path(entry.path).name}:{entry.lineno + 1}:{entry.name}"))
if report.when == "call":
item.stash[_CALL_PASSED] = report.passed
report.user_properties = list(item.user_properties)

View file

@ -79,14 +79,6 @@
assertions: [succeeds]
source: "db.py user_oauth_credential lookup"
rationale: OAuth2 token passthrough; per-user credential storage
- id: mcp.call_tool.oauth.persists_across_processes
module: mcp
tier: P1
operation: call_tool
auth_family: oauth
assertions: [persists_across_processes]
source: "outbound_credentials/per_user_oauth_store.py V2PerUserTokenStore"
rationale: Stored per-user token survives a verified restart of an owned gateway with no Redis cache
- id: mcp.list_tools.none.succeeds
module: mcp
tier: P1

View file

@ -111,10 +111,6 @@ CHEAP_ANTHROPIC_MODEL = os.environ.get("E2E_CHEAP_ANTHROPIC_MODEL", "claude-haik
CHEAP_OPENAI_MODEL = os.environ.get("E2E_CHEAP_OPENAI_MODEL", "gpt-5.5")
S3_PARTITION_GRANULARITY = os.environ.get("E2E_S3_PARTITION_GRANULARITY", "day")
LINEAR_MCP_URL = os.environ.get("E2E_LINEAR_MCP_URL", "https://mcp.linear.app/mcp")
LINEAR_STORAGE_STATE = os.environ.get("E2E_LINEAR_STORAGE_STATE", "")
LINEAR_READONLY_TOOL: Final = "list_teams" # as listed by tools/list on mcp.linear.app when PR #33787 landed
# Jaeger query API of the compose stack's OTEL trace destination (the `jaeger`
# service in docker-compose.yml maps it to host 16686). Trace-completeness tests
# read exported spans back through it.
@ -207,7 +203,6 @@ MANAGED_FILES_OPT_IN_ENV = "E2E_MANAGED_FILES_STACK"
PROMPT_CACHING_OPT_IN_ENV = "E2E_PROMPT_CACHING_STACK"
PERF_TESTS_OPT_IN_ENV: Final = "E2E_PERF_TESTS"
CLI_DETERMINISM_OPT_IN_ENV = "E2E_CLI_DETERMINISM"
MCP_OAUTH_LIVE_OPT_IN_ENV: Final = "E2E_MCP_OAUTH_LIVE"
PROVIDER_EDGE_HOST_OPT_IN_ENV: Final = "E2E_PROVIDER_EDGE_HOST_REACHABLE"
OWNED_GATEWAY_OPT_IN_ENV: Final = "E2E_OWNED_GATEWAY"
OTEL_V2_OPT_IN_ENV: Final = "E2E_OTEL_V2"

View file

@ -1,58 +0,0 @@
"""One-time helper to capture a logged-in Linear browser session for the
real-Linear MCP e2e test.
The real-Linear test drives the genuine gateway-managed authorization_code
dance against ``mcp.linear.app``. The only step that cannot be scripted is
Linear's login (magic link / SSO), so a human authenticates once here and the
resulting session (cookies + local storage) is persisted to disk. The e2e test
then loads that session in a headless Playwright context and clicks Approve on
Linear's consent screen every run, with no human and no login automation.
Run it with the e2e venv, log into Linear in the window that opens, then return
to the terminal and press Enter:
LITELLM=~/litellm-mcpe2e
"$LITELLM"/.venv/bin/python "$LITELLM"/tests/e2e/mcp/linear_session_capture.py
The session is written to ``E2E_LINEAR_STORAGE_STATE`` (default
``~/.litellm-e2e/linear_storage_state.json``), outside the repo. It is a
secret: never commit it. Re-run this whenever Linear expires the session.
"""
from __future__ import annotations
import os
from pathlib import Path
from playwright.sync_api import sync_playwright
DEFAULT_STATE_PATH = Path.home() / ".litellm-e2e" / "linear_storage_state.json"
def capture(state_path: Path) -> None:
"""Open a headed browser at Linear, wait for the human to log in, then save
the authenticated session to ``state_path``."""
state_path.parent.mkdir(parents=True, exist_ok=True)
with sync_playwright() as playwright:
browser = playwright.chromium.launch(headless=False)
context = browser.new_context()
page = context.new_page()
page.goto("https://linear.app/login", wait_until="domcontentloaded")
print("\n" + "=" * 72)
print("Log into Linear in the browser window that just opened.")
print("If Linear emails you a magic link, paste the link into THIS window's")
print("address bar (opening it in your default browser won't capture the")
print("session). Google SSO works too as long as you complete it here.")
print("When your Linear workspace has loaded, come back and press Enter.")
print("=" * 72)
input("Press Enter once you are logged in... ")
page.goto("https://mcp.linear.app/", wait_until="domcontentloaded")
context.storage_state(path=str(state_path))
browser.close()
print(f"\nSaved Linear session to {state_path}")
print("Point the e2e test at it with:")
print(f' export E2E_LINEAR_STORAGE_STATE="{state_path}"')
if __name__ == "__main__":
capture(Path(os.environ.get("E2E_LINEAR_STORAGE_STATE", str(DEFAULT_STATE_PATH))))

View file

@ -1,442 +0,0 @@
"""Client for the mcp chat-completion OAuth e2e suite.
Registers a gateway-managed OAuth (authorization_code) MCP server, seeds the
per-user upstream token by driving the interactive authorize dance with the
official mcp SDK's OAuthClientProvider (the browser leg is a headless Chromium
primed with a human's saved Linear session), then exercises the server through
/chat/completions, where the gateway lists and executes its tools with the
stored per-user token.
Management routes (/v1/mcp/server CRUD, /chat/completions) go through the
shared ProxyClient transport. The MCP protocol used to seed the token goes through
the mcp SDK, the same library production MCP hosts run.
"""
from __future__ import annotations
import asyncio
import re
import time
from dataclasses import dataclass
from typing import TYPE_CHECKING, Final
from urllib.parse import parse_qsl
import httpx
import httpx2
import pytest
from e2e_config import PROXY_BASE_URL, REQUEST_TIMEOUT
from e2e_http import AuthHeaders, NoBody, unwrap
from e2e_metadata import step
from idp import Identity
from mcp import ClientSession
from mcp.client.auth import OAuthClientProvider
from mcp.client.streamable_http import streamable_http_client
from mcp.shared.auth import AuthorizationCodeResult, OAuthClientInformationFull, OAuthClientMetadata, OAuthToken
from mcp.types import TextContent
from models import (
ChatBody,
ChatResponse,
McpOauthUserCredentialStatus,
McpServerCreateBody,
McpServerInfo,
McpServerUserCredentialListResponse,
McpServerUserCredentialRow,
)
from proxy_client import ProxyClient
if TYPE_CHECKING:
from playwright.async_api import Route
# Where the "browser" lands at the end of the authorize dance. Nothing listens
# here: the route interceptor short-circuits the final redirect and reads the
# code/state off its query string, exactly like a desktop MCP host intercepting
# its loopback redirect.
OAUTH_CLIENT_REDIRECT_URI = "http://127.0.0.1:53682/e2e/callback"
BROWSER_CONSENT_TIMEOUT = 60.0
def _mcp_url(alias: str, base_url: str = PROXY_BASE_URL) -> str:
return f"{base_url.rstrip('/')}/{alias}/mcp"
class InMemoryTokenStorage:
"""The mcp SDK's TokenStorage protocol, in memory for one dance: the
DCR-registered client and the gateway tokens minted for it."""
def __init__(self) -> None:
self._tokens: OAuthToken | None = None
self._client_info: OAuthClientInformationFull | None = None
async def get_tokens(self) -> OAuthToken | None:
return self._tokens
async def set_tokens(self, tokens: OAuthToken) -> None:
self._tokens = tokens
async def get_client_info(self) -> OAuthClientInformationFull | None:
return self._client_info
async def set_client_info(self, client_info: OAuthClientInformationFull) -> None:
self._client_info = client_info
async def _browser_follow_authorize(
start_url: str,
storage_state_path: str,
identity: Identity | None = None,
server_alias: str | None = None,
allow_upstream_consent: bool = True,
) -> tuple[str, str | None]:
"""Play the browser's role for a real upstream whose authorize endpoint
serves an interactive consent page (Linear). A headless Chromium primed
with a human's saved Linear session opens the gateway authorize URL and
clicks through Linear's consent screens (the mcp.linear.app Approve form,
then the linear.app workspace-selection page), riding the rest of the chain
(Linear -> gateway callback -> host redirect_uri). The final hop is
intercepted and short-circuited, since nothing listens there, and its
code/state are read off the query string."""
from playwright.async_api import async_playwright
captured: dict[str, str] = {} # mutable-ok: hand-off from the request listener
trail: list[str] = [] # mutable-ok: navigation diagnostics for a failed dance
def _note_request(request: object) -> None:
url = getattr(request, "url", "")
host = httpx.URL(url).host
if not allow_upstream_consent and (host == "linear.app" or host.endswith(".linear.app")):
captured["upstream_consent"] = "seen"
if url.startswith(OAUTH_CLIENT_REDIRECT_URI) and "url" not in captured:
captured["url"] = url
async def _swallow_redirect(route: Route) -> None:
await route.fulfill(status=200, content_type="text/plain", body="ok")
async with async_playwright() as playwright:
browser = await playwright.chromium.launch(headless=True)
context = await browser.new_context(storage_state=storage_state_path)
await context.route(re.compile(re.escape(OAUTH_CLIENT_REDIRECT_URI) + r".*"), _swallow_redirect)
page = await context.new_page()
context.on("request", _note_request)
page.on("framenavigated", lambda frame: trail.append(frame.url.split("?", 1)[0]))
await page.goto(start_url, wait_until="domcontentloaded")
deadline = time.monotonic() + BROWSER_CONSENT_TIMEOUT
while "url" not in captured and time.monotonic() < deadline:
try:
await page.wait_for_load_state("networkidle", timeout=8000)
except Exception: # noqa: BLE001 - a busy consent page never idles; fall through and try to advance it
pass
if "upstream_consent" in captured or "url" in captured:
break
if await page.locator("#username").count() and identity is not None:
await page.locator("#username").fill(identity.username)
await page.locator("#password").fill(identity.password)
await page.locator("#kc-login").click()
continue
if "/ui/connect" in page.url and server_alias is not None:
card = page.locator("div.cursor-pointer").filter(has=page.get_by_text(server_alias, exact=True))
if await card.count() != 1:
await asyncio.sleep(0.5)
continue
connect = card.get_by_text("Connect", exact=True)
if await connect.count():
await connect.click()
continue
if not await card.locator("svg.text-success").count():
await asyncio.sleep(0.5)
continue
finish = page.get_by_role("button", name="Finish connecting", exact=True)
if await finish.count() and await finish.is_enabled():
await finish.click()
continue
control = page.locator(
'button[name="action"][value="approve"], button:has-text("Authorize"), '
'button:has-text("Allow"), button:has-text("@"), a:has-text("@")'
).first
try:
await control.click(timeout=5000)
except Exception: # noqa: BLE001 - nothing to advance yet; loop and re-check
await asyncio.sleep(0.5)
final_url = page.url
await browser.close()
# A redirect chain can finish inside goto/networkidle before the loop checks the page.
assert "upstream_consent" not in captured, "cold reconnect required upstream consent"
landing = captured.get("url")
assert landing is not None, (
f"consent flow never reached {OAUTH_CLIENT_REDIRECT_URI}; "
f"final={final_url.split('?', 1)[0]!r}; trail={trail[-6:]}"
)
params = dict(parse_qsl(httpx.URL(landing).query.decode()))
assert "code" in params, "client redirect_uri carried no authorization code"
return params["code"], params.get("state")
def _oauth_provider(
url: str,
storage: InMemoryTokenStorage,
storage_state_path: str | None,
identity: Identity | None = None,
server_alias: str | None = None,
allow_upstream_consent: bool = True,
) -> OAuthClientProvider:
"""The SDK's real OAuth machinery (RFC 9728/8414 discovery, RFC 7591 DCR,
PKCE, token exchange) with the browser leg driven by Playwright against the
upstream's consent screen."""
code_holder: dict[str, str | None] = {} # mutable-ok: hand-off between the two SDK callbacks
async def _reject_redirect(_: str) -> None:
raise AssertionError("gateway demanded a fresh upstream consent; stored per-user token was not reused")
async def _follow_redirect(authorize_url: str) -> None:
assert storage_state_path is not None
code, state = await _browser_follow_authorize(
authorize_url, storage_state_path, identity, server_alias, allow_upstream_consent
)
code_holder["code"] = code
code_holder["state"] = state
redirect_handler: Final = _reject_redirect if storage_state_path is None else _follow_redirect
async def callback_handler() -> AuthorizationCodeResult:
code = code_holder.get("code")
assert code is not None, "callback_handler ran before the authorize redirect completed"
return AuthorizationCodeResult(code=code, state=code_holder.get("state"))
return OAuthClientProvider(
server_url=url,
client_metadata=OAuthClientMetadata.model_validate(
{
"redirect_uris": [OAUTH_CLIENT_REDIRECT_URI],
"token_endpoint_auth_method": "none",
"grant_types": ["authorization_code", "refresh_token"],
"response_types": ["code"],
"client_name": "e2e-mcp-host",
}
),
storage=storage,
redirect_handler=redirect_handler,
callback_handler=callback_handler,
)
class _HeaderInjectingTransport(httpx2.AsyncBaseTransport):
"""Adds the caller's LiteLLM key header to every outgoing SDK request
(discovery, DCR, token exchange), so the gateway resolves which user to
store the upstream token for from the key on the token exchange, exactly
like a production MCP host configured with a LiteLLM key header."""
def __init__(self, inner: httpx2.AsyncBaseTransport, headers: dict[str, str], gateway_url: str) -> None:
self._inner = inner
self._headers = headers
self._gateway_url = httpx2.URL(gateway_url)
@staticmethod
def _port(url: httpx2.URL) -> int | None:
if url.port is not None:
return url.port
return {"http": 80, "https": 443}.get(url.scheme)
async def handle_async_request(self, request: httpx2.Request) -> httpx2.Response:
same_origin: Final = (
request.url.scheme == self._gateway_url.scheme
and request.url.host == self._gateway_url.host
and self._port(request.url) == self._port(self._gateway_url)
)
if same_origin:
for name, value in self._headers.items():
if name not in request.headers:
request.headers[name] = value
else:
for name, value in self._headers.items():
if request.headers.get(name) == value:
del request.headers[name]
return await self._inner.handle_async_request(request)
async def aclose(self) -> None:
await self._inner.aclose()
def _oauth_http_client(
headers: dict[str, str], auth: OAuthClientProvider, gateway_url: str = PROXY_BASE_URL
) -> httpx2.AsyncClient:
return httpx2.AsyncClient(
auth=auth,
timeout=httpx2.Timeout(REQUEST_TIMEOUT),
follow_redirects=True,
transport=_HeaderInjectingTransport(httpx2.AsyncHTTPTransport(), headers, gateway_url),
)
async def _seed_via_dance(
url: str, headers: dict[str, str], storage: InMemoryTokenStorage, storage_state_path: str
) -> tuple[str, ...]:
async with _oauth_http_client(headers, _oauth_provider(url, storage, storage_state_path)) as http_client:
async with streamable_http_client(url, http_client=http_client) as (read, write):
async with ClientSession(read, write) as session:
await session.initialize()
listed = await session.list_tools()
return tuple(sorted(tool.name for tool in listed.tools))
@dataclass(frozen=True, slots=True)
class OauthToolRun:
tools: tuple[str, ...]
is_error: bool
text: str
async def _list_and_call(
url: str,
headers: dict[str, str],
storage: InMemoryTokenStorage,
storage_state_path: str | None,
tool: str,
arguments: dict[str, str],
gateway_url: str = PROXY_BASE_URL,
identity: Identity | None = None,
server_alias: str | None = None,
allow_upstream_consent: bool = True,
) -> OauthToolRun:
async with _oauth_http_client(
headers,
_oauth_provider(url, storage, storage_state_path, identity, server_alias, allow_upstream_consent),
gateway_url,
) as http_client:
async with streamable_http_client(url, http_client=http_client) as (read, write):
async with ClientSession(read, write) as session:
await session.initialize()
listed: Final = await session.list_tools()
result: Final = await session.call_tool(tool, arguments)
text: Final = "".join(content.text for content in result.content if isinstance(content, TextContent))
return OauthToolRun(
tools=tuple(sorted(tool_item.name for tool_item in listed.tools)),
is_error=result.is_error,
text=text,
)
@dataclass(frozen=True, slots=True)
class ChatMcpClient:
proxy: ProxyClient
@step("Register the MCP server with the alias {body.alias}")
def create_server(self, body: McpServerCreateBody) -> McpServerInfo:
return unwrap(
self.proxy.transport.post(
"/v1/mcp/server",
headers=self.proxy.transport.master,
json=body,
response_type=McpServerInfo,
)
)
@step("Read the MCP server back from /v1/mcp/server")
def server_info(self, server_id: str) -> McpServerInfo:
return unwrap(
self.proxy.transport.get(
f"/v1/mcp/server/{server_id}",
headers=self.proxy.transport.master,
params=NoBody(),
response_type=McpServerInfo,
)
)
@step("Delete the MCP server")
def delete_server(self, server_id: str) -> None:
_ = self.proxy.transport.delete(
f"/v1/mcp/server/{server_id}",
headers=self.proxy.transport.master,
json=NoBody(),
response_type=NoBody,
)
@step("Sign the key's user in to the MCP server {alias} through the OAuth consent flow")
def seed_user_token(self, alias: str, key: str, storage_state_path: str) -> tuple[str, ...]:
"""Drive the interactive authorize dance for `key`'s user so the gateway
stores their upstream token, retried to the shared deadline since the
just-created server and key propagate asynchronously. The LiteLLM key
rides x-litellm-api-key so the gateway binds the token to that user.
Returns the upstream tool names the dance listed, proof the token works."""
headers = {"x-litellm-api-key": f"Bearer {key}"}
storage = InMemoryTokenStorage()
deadline = time.monotonic() + self.proxy.poll_timeout
last_error: Exception | None = None
while time.monotonic() < deadline:
try:
return asyncio.run(_seed_via_dance(_mcp_url(alias), headers, storage, storage_state_path))
except Exception as exc: # noqa: BLE001 - retried to the deadline; the last error surfaces below
last_error = exc
time.sleep(self.proxy.poll_interval)
pytest.fail(
f"authorize dance for {alias!r} never completed within {self.proxy.poll_timeout}s; "
f"last error: {last_error!r}"
)
@step("List the tools on the MCP server {alias} and call {tool} over the MCP protocol")
def list_and_call(
self,
alias: str,
headers: dict[str, str],
storage: InMemoryTokenStorage,
storage_state_path: str | None,
tool: str,
arguments: dict[str, str],
base_url: str = PROXY_BASE_URL,
identity: Identity | None = None,
allow_upstream_consent: bool = True,
) -> OauthToolRun:
return asyncio.run(
_list_and_call(
f"{base_url.rstrip('/')}/mcp" if identity is not None else _mcp_url(alias, base_url),
headers,
storage,
storage_state_path,
tool,
arguments,
base_url,
identity,
alias,
allow_upstream_consent,
)
)
@step("List the users with a stored OAuth token for the MCP server")
def server_user_credentials(self, server_id: str) -> tuple[McpServerUserCredentialRow, ...]:
return unwrap(
self.proxy.transport.get(
f"/v1/mcp/server/{server_id}/user-credentials",
headers=self.proxy.transport.master,
params=NoBody(),
response_type=McpServerUserCredentialListResponse,
)
).root
@step("Revoke the user's stored OAuth token for the MCP server")
def revoke_user_token(self, server_id: str, headers: AuthHeaders) -> None:
_ = unwrap(
self.proxy.transport.delete(
f"/v1/mcp/server/{server_id}/oauth-user-credential",
headers=headers,
json=NoBody(),
response_type=McpOauthUserCredentialStatus,
)
)
@step("Send a /chat/completions request to {body.model} with an MCP server attached as a tool")
def chat_with_mcp(self, headers: AuthHeaders, body: ChatBody) -> ChatResponse:
"""POST /chat/completions carrying the LiteLLM key in `headers` (either
ingress form) with an MCP server attached in `body.tools`. The gateway
resolves the user from the key and lists/executes the server's tools
with that user's stored upstream token."""
return unwrap(
self.proxy.transport.post(
"/chat/completions",
headers=headers,
json=body,
response_type=ChatResponse,
)
)
def build_chat_client(proxy: ProxyClient) -> ChatMcpClient:
return ChatMcpClient(proxy=proxy)

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@ -1,197 +0,0 @@
"""An owned, source-built OAuth gateway with cold restarts and credential observations.
Only this child process is restarted. Its database and SSO client survive while
its process-local caches do not; Redis is deliberately absent from its config.
The optional live edge measures headers without recording credentials or bodies.
"""
from __future__ import annotations
import os
import subprocess
import sys
import threading
import time
from collections.abc import Callable, Mapping
from contextlib import ExitStack
from dataclasses import dataclass, field
from pathlib import Path
from typing import Final
import psycopg
from e2e_config import INHERITED_ENV_PREFIXES, available_port
from e2e_http import NoBody
from e2e_metadata import step
from idp import Keycloak, stop_process_group
from proxy_client import ProxyClient, build_proxy_client
from psycopg.rows import class_row
from pydantic import BaseModel, SecretStr, ValidationError
class StoredOAuth(BaseModel):
type: str
access_token: SecretStr
@dataclass(frozen=True, slots=True)
class CredentialRow:
credential_b64: str = field(repr=False)
@step("Read the user's stored OAuth credential for the MCP server from the database and decrypt it")
def stored_oauth(user_id: str, server_id: str) -> StoredOAuth:
"""Read the encrypted credential because management APIs omit the plaintext token."""
from litellm.proxy.common_utils.encrypt_decrypt_utils import decrypt_value_helper
with psycopg.Connection[CredentialRow].connect(
os.environ["DATABASE_URL"], row_factory=class_row(CredentialRow)
) as conn:
row: Final = conn.execute(
'SELECT credential_b64 FROM "LiteLLM_MCPUserCredentials" WHERE user_id = %s AND server_id = %s',
(user_id, server_id),
).fetchone()
assert row is not None, "canonical user/server has no persisted credential"
plaintext: Final = decrypt_value_helper(
row.credential_b64, "e2e_mcp_oauth", exception_type="debug", return_original_value=False
)
assert plaintext is not None, "persisted credential must decrypt with the gateway salt"
assert plaintext != row.credential_b64, "persisted credential must be encrypted"
try:
credential: Final = StoredOAuth.model_validate_json(plaintext)
except ValidationError:
raise AssertionError("decrypted credential is not an OAuth payload") from None
assert credential.type == "oauth2"
assert bool(credential.access_token.get_secret_value()), "stored upstream token is empty"
return credential
class RpcMethod(BaseModel):
method: str = ""
@dataclass(slots=True)
class OAuthObservation:
gateway_token: str = field(default="", repr=False)
_seen: tuple[tuple[str, str, bool], ...] = field(default=(), init=False, repr=False)
_lock: threading.Lock = field(default_factory=threading.Lock, init=False, repr=False)
def observe(self, url: str, headers: Mapping[str, str], body: bytes | None) -> None:
if body is None or not url.endswith("/mcp"):
return
try:
operation: Final = RpcMethod.model_validate_json(body).method
except ValidationError:
return
if operation not in ("tools/list", "tools/call"):
return
received: Final = headers.get("authorization", "")
gateway_leaked: Final = any(
value in (self.gateway_token, f"Bearer {self.gateway_token}") for value in headers.values()
)
with self._lock:
self._seen = (*self._seen, (operation, received, gateway_leaked))
def assert_forwarded(self, expected: StoredOAuth) -> None:
with self._lock:
snapshot: Final = self._seen
self._seen = ()
assert {item[0] for item in snapshot} == {"tools/list", "tools/call"}, "missing upstream observations"
expected_header: Final = f"Bearer {expected.access_token.get_secret_value()}"
assert all(item[1] == expected_header for item in snapshot), "upstream bearer did not match the stored token"
assert all(not item[2] for item in snapshot), "gateway bearer leaked to the upstream"
@dataclass(slots=True)
class OAuthGateway:
base_url: str
proxy: ProxyClient
_environment: Mapping[str, str] = field(repr=False)
_command: tuple[str, ...] = field(repr=False)
_log_path: Path
_child: subprocess.Popen[bytes] | None = field(default=None, init=False, repr=False)
@step("Start the separate LiteLLM proxy and wait for /health/liveliness")
def start(self) -> None:
with self._log_path.open("ab") as log:
self._child = subprocess.Popen(
self._command,
env=self._environment,
stdout=log,
stderr=log,
start_new_session=True,
)
deadline: Final = time.monotonic() + 120
while time.monotonic() < deadline:
assert self._child.poll() is None, "owned OAuth gateway exited; inspect its private log"
result = self.proxy.transport.probe("/health/liveliness", params=NoBody())
if result.status_code == 200:
return
time.sleep(0.5)
raise AssertionError("owned OAuth gateway did not become ready")
@step("Stop the separate LiteLLM proxy")
def stop(self) -> None:
if self._child is not None:
stop_process_group(self._child)
assert self._child.poll() is not None, "old gateway process is still alive"
@step("Restart the separate LiteLLM proxy process so its in-memory caches start empty")
def restart(self) -> None:
assert self._child is not None
previous: Final = self._child.pid
self.stop()
self.start()
assert self._child.pid != previous, "gateway restart did not create a new process"
@step("Start a separate LiteLLM proxy from source with JWT auth against Keycloak")
def owned_gateway(idp: Keycloak, directory: Path, cleanup: ExitStack) -> OAuthGateway:
for name in ("DATABASE_URL", "LITELLM_LICENSE", "LITELLM_SALT_KEY", "LITELLM_MASTER_KEY"):
assert os.environ.get(name), f"{name} is required for the owned OAuth gateway"
port: Final = available_port()
base_url: Final = f"http://127.0.0.1:{port}"
def defer(callback: Callable[[], object]) -> None:
cleanup.callback(callback)
browser: Final = idp.browser_client(callback_url=f"{base_url}/sso/callback", defer=defer)
config: Final = directory / "oauth-gateway.yaml"
config.write_text(
"model_list: []\n"
"general_settings:\n"
" master_key: os.environ/LITELLM_MASTER_KEY\n"
" database_url: os.environ/DATABASE_URL\n"
" enable_jwt_auth: true\n"
" litellm_jwtauth:\n"
" user_id_jwt_field: sub\n"
" user_email_jwt_field: email\n"
" team_ids_jwt_field: groups\n"
" user_id_upsert: true\n"
)
environment: Final = {
**{key: value for key, value in os.environ.items() if not key.startswith(INHERITED_ENV_PREFIXES)},
**browser.environment(idp.discovery()),
"PROXY_BASE_URL": base_url,
"JWT_PUBLIC_KEY_URL": idp.jwks_url,
"JWT_ISSUER": idp.issuer,
"JWT_AUDIENCE": "litellm-e2e",
"DISABLE_SCHEMA_UPDATE": "true",
"STORE_MODEL_IN_DB": "True",
"PYTHONPATH": str(Path(__file__).resolve().parents[3]),
}
gateway: Final = OAuthGateway(
base_url=base_url,
proxy=build_proxy_client(
base_url=base_url,
control_plane_base_url=base_url,
replica_urls=(base_url,),
control_replica_urls=(base_url,),
master_key=os.environ["LITELLM_MASTER_KEY"],
),
_environment=environment,
_command=(sys.executable, "-m", "litellm.proxy.proxy_cli", "--config", str(config), "--port", str(port)),
_log_path=directory / "oauth-gateway.log",
)
cleanup.callback(gateway.stop)
gateway.start()
return gateway

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@ -1,218 +0,0 @@
"""On-demand e2e: a chat completion drives a gateway-managed OAuth MCP server.
The real end-user flow for MCP over an OAuth server: a user registers a Linear
authorization_code server, authorizes it once so the gateway stores their
upstream token, then sends a normal /chat/completions request with the Linear
MCP attached. The gateway resolves the user from the LiteLLM key, lists Linear's
tools with the stored per-user token, lets the model call one, executes it
upstream with that token, and returns the answer. This is proven against the
real Linear MCP server (mcp.linear.app) and a real Anthropic model, once per
documented ingress header (x-litellm-api-key and Authorization).
The authorize dance is seeded through the mcp SDK's OAuthClientProvider; the one
step Linear cannot auto-approve is the human consent, so it is captured once out
of band (mcp/linear_session_capture.py) into a saved browser session and a
headless Chromium clicks Approve every run. The test therefore skips unless
E2E_LINEAR_STORAGE_STATE points at that session, so it never runs on the per-PR
CI path; it is a nightly/on-demand real-server smoke test.
Fail-before-fix: without the stored per-user token the gateway lists no Linear
tools, so mcp_list_tools comes back empty, nothing is called, and the
assertions fail; a served, called, non-empty Linear tool proves the gateway
pulled and used the user's token.
"""
from __future__ import annotations
import os
import pytest
from e2e_config import CHEAP_ANTHROPIC_MODEL, LINEAR_MCP_URL, LINEAR_STORAGE_STATE, unique_marker
from e2e_http import AuthHeaders
from e2e_metadata import Capability, Domain, Mode, Provider, Route, Subject, meta
from lifecycle import ResourceManager
from models import ChatBody, ChatMessage, KeyGenerateBody, McpChatTool, McpServerCreateBody, ObjectPermission
from proxy_client import ProxyClient
pytest.importorskip("mcp", reason="mcp SDK not installed; run `uv sync --inexact --group e2e-dev`")
pytest.importorskip(
"playwright.async_api",
reason="playwright not installed; run `uv pip install playwright` and `playwright install chromium`",
)
from oauth_chat_client import ChatMcpClient, build_chat_client # noqa: E402 # imports follow the importorskip guards
pytestmark = [
pytest.mark.e2e,
pytest.mark.skipif(
not LINEAR_STORAGE_STATE or not os.path.exists(LINEAR_STORAGE_STATE),
reason="set E2E_LINEAR_STORAGE_STATE to a Linear session captured via mcp/linear_session_capture.py",
),
]
# Pinned from a live dance during verification (never guessed); the gateway
# prefixes every upstream tool name with the server alias. list_teams is a
# read-only Linear tool that takes no arguments and returns the caller's teams.
LINEAR_READONLY_TOOL = "list_teams"
LINEAR_PROMPT = "Use the list_teams tool to list my Linear teams, then reply with the name of one of them."
@pytest.fixture(scope="session")
def chat_client(proxy: ProxyClient) -> ChatMcpClient:
return build_chat_client(proxy)
class TestMcpChatCompletionOauth:
"""A scoped internal-user key on a real Linear authorization_code server,
used through /chat/completions once per ingress header: the gateway pulls
the user's stored upstream token, lists and executes Linear's tools during
the completion, and returns the answer."""
@pytest.mark.covers("mcp.list_tools.oauth.succeeds")
@pytest.mark.covers("mcp.call_tool.oauth.succeeds")
@meta(
Subject(
domain=Domain.MCP,
route=Route.CHAT_COMPLETIONS,
providers=(Provider.ANTHROPIC,),
models=(CHEAP_ANTHROPIC_MODEL,),
capabilities=(Capability.FUNCTION_CALLING,),
mode=Mode.NONSTREAM,
)
)
def test_chat_completion_uses_linear_with_x_litellm_api_key_header(
self, chat_client: ChatMcpClient, resources: ResourceManager
) -> None:
marker = unique_marker()
alias = f"e2elinear{marker}"
created = chat_client.create_server(
McpServerCreateBody(
alias=alias,
url=LINEAR_MCP_URL,
allow_all_keys=False,
auth_type="oauth2",
oauth2_flow="authorization_code",
)
)
resources.defer(lambda: chat_client.delete_server(created.server_id))
stored = chat_client.server_info(created.server_id)
assert stored.auth_type == "oauth2"
assert stored.oauth2_flow == "authorization_code"
assert stored.allow_all_keys is False
key = chat_client.proxy.generate_key(
KeyGenerateBody(
user_id="e2e-test-user",
object_permission=ObjectPermission(mcp_servers=[created.server_id]),
)
)
resources.defer(lambda: chat_client.proxy.delete_key(key))
seeded = chat_client.seed_user_token(alias, key, LINEAR_STORAGE_STATE)
assert f"{alias}-{LINEAR_READONLY_TOOL}" in seeded, (
f"the authorize dance listed {seeded}, expected it to include {alias}-{LINEAR_READONLY_TOOL}"
)
response = chat_client.chat_with_mcp(
AuthHeaders.model_validate({"x-litellm-api-key": f"Bearer {key}"}),
ChatBody(
model=CHEAP_ANTHROPIC_MODEL,
messages=[ChatMessage(role="user", content=LINEAR_PROMPT)],
tools=[
McpChatTool(
server_url=f"litellm_proxy/mcp/{alias}",
server_label=alias,
require_approval="never",
)
],
),
)
message = response.choices[0].message
assert message is not None and message.content, f"completion returned no answer: {response}"
meta = message.provider_specific_fields
assert meta is not None, f"no MCP metadata on the completion: {response}"
listed = {t.function.name for t in (meta.mcp_list_tools or []) if t.function}
assert f"{alias}-{LINEAR_READONLY_TOOL}" in listed, (
f"the gateway listed {sorted(listed)}, expected the stored token to surface {alias}-{LINEAR_READONLY_TOOL}"
)
results = [r for r in (meta.mcp_call_results or []) if r.name == f"{alias}-{LINEAR_READONLY_TOOL}"]
assert results and results[0].result, (
f"Linear tool {alias}-{LINEAR_READONLY_TOOL} was not executed with a result: {meta.mcp_call_results}"
)
@pytest.mark.covers("mcp.list_tools.oauth.succeeds")
@pytest.mark.covers("mcp.call_tool.oauth.succeeds")
@meta(
Subject(
domain=Domain.MCP,
route=Route.CHAT_COMPLETIONS,
providers=(Provider.ANTHROPIC,),
models=(CHEAP_ANTHROPIC_MODEL,),
capabilities=(Capability.FUNCTION_CALLING,),
mode=Mode.NONSTREAM,
)
)
def test_chat_completion_uses_linear_with_authorization_bearer_header(
self, chat_client: ChatMcpClient, resources: ResourceManager
) -> None:
marker = unique_marker()
alias = f"e2elinear{marker}"
created = chat_client.create_server(
McpServerCreateBody(
alias=alias,
url=LINEAR_MCP_URL,
allow_all_keys=False,
auth_type="oauth2",
oauth2_flow="authorization_code",
)
)
resources.defer(lambda: chat_client.delete_server(created.server_id))
stored = chat_client.server_info(created.server_id)
assert stored.auth_type == "oauth2"
assert stored.oauth2_flow == "authorization_code"
assert stored.allow_all_keys is False
key = chat_client.proxy.generate_key(
KeyGenerateBody(
user_id="e2e-test-user",
object_permission=ObjectPermission(mcp_servers=[created.server_id]),
)
)
resources.defer(lambda: chat_client.proxy.delete_key(key))
seeded = chat_client.seed_user_token(alias, key, LINEAR_STORAGE_STATE)
assert f"{alias}-{LINEAR_READONLY_TOOL}" in seeded, (
f"the authorize dance listed {seeded}, expected it to include {alias}-{LINEAR_READONLY_TOOL}"
)
response = chat_client.chat_with_mcp(
AuthHeaders.model_validate({"authorization": f"Bearer {key}"}),
ChatBody(
model=CHEAP_ANTHROPIC_MODEL,
messages=[ChatMessage(role="user", content=LINEAR_PROMPT)],
tools=[
McpChatTool(
server_url=f"litellm_proxy/mcp/{alias}",
server_label=alias,
require_approval="never",
)
],
),
)
message = response.choices[0].message
assert message is not None and message.content, f"completion returned no answer: {response}"
meta = message.provider_specific_fields
assert meta is not None, f"no MCP metadata on the completion: {response}"
listed = {t.function.name for t in (meta.mcp_list_tools or []) if t.function}
assert f"{alias}-{LINEAR_READONLY_TOOL}" in listed, (
f"the gateway listed {sorted(listed)}, expected the stored token to surface {alias}-{LINEAR_READONLY_TOOL}"
)
results = [r for r in (meta.mcp_call_results or []) if r.name == f"{alias}-{LINEAR_READONLY_TOOL}"]
assert results and results[0].result, (
f"Linear tool {alias}-{LINEAR_READONLY_TOOL} was not executed with a result: {meta.mcp_call_results}"
)

View file

@ -1,216 +0,0 @@
"""Real OAuth consent, immediate MCP operations and cold-restart persistence.
Aggregate SSO uses the SDK's normal authentication. The per-server variant is
explicitly a configured two-header client, not an Authorization-only OAuth host.
The observed variants forward to the same real Linear upstream and compare its
bearer at the forwarding boundary; direct variants retain unmodified discovery.
"""
from __future__ import annotations
import os
from collections.abc import Iterator
from contextlib import ExitStack
from pathlib import Path
from types import MappingProxyType
from typing import Final, Literal
import pytest
from e2e_config import LINEAR_MCP_URL, LINEAR_READONLY_TOOL, LINEAR_STORAGE_STATE, unique_marker
from e2e_http import AuthHeaders, NoBody, get_external, unwrap
from e2e_metadata import Domain, Route, Subject, meta
from idp import Identity, Keycloak
from lifecycle import ResourceManager
from models import (
McpOauthCredentials,
McpServerCreateBody,
ObjectPermission,
TeamMemberAddBody,
TeamMemberEntry,
TeamUpdateBody,
)
from oauth_chat_client import ChatMcpClient, InMemoryTokenStorage, OauthToolRun, build_chat_client
from oauth_gateway import OAuthGateway, OAuthObservation, owned_gateway, stored_oauth
from provider_edge import LiveEdge, start_provider_edge
from proxy_client import ProxyClient
from pydantic import BaseModel, ValidationError
pytestmark = [pytest.mark.e2e, pytest.mark.mcp_oauth_live, pytest.mark.provider_live]
class OAuthMetadata(BaseModel):
issuer: str
authorization_endpoint: str
token_endpoint: str
registration_endpoint: str
class LinearTeam(BaseModel):
id: str
name: str
class LinearTeams(BaseModel):
teams: tuple[LinearTeam, ...]
def assert_tool_result(run: OauthToolRun, tool: str) -> None:
assert tool in run.tools
assert run.is_error is False
try:
result: Final = LinearTeams.model_validate_json(run.text)
except ValidationError:
raise AssertionError("list_teams did not return the expected teams payload") from None
assert result.teams, "the test workspace must contain at least one team"
assert all(team.id and team.name for team in result.teams), "team results must contain identifiers and names"
@pytest.fixture(scope="module")
def oauth_gateway(idp: Keycloak, tmp_path_factory: pytest.TempPathFactory) -> Iterator[OAuthGateway]:
assert LINEAR_STORAGE_STATE and Path(LINEAR_STORAGE_STATE).is_file(), (
"E2E_LINEAR_STORAGE_STATE must name a captured Linear login; see mcp/linear_session_capture.py"
)
assert os.environ.get("E2E_FIXTURE_MODE", "live") == "live", "OAuth acceptance cannot use replay"
with ExitStack() as cleanup:
yield owned_gateway(idp, tmp_path_factory.mktemp("mcp-oauth"), cleanup)
@pytest.fixture(scope="module")
def proxy(oauth_gateway: OAuthGateway) -> ProxyClient:
return oauth_gateway.proxy
@pytest.fixture(scope="module")
def client(proxy: ProxyClient) -> ChatMcpClient:
return build_chat_client(proxy)
class TestMcpOauthHappyPath:
@pytest.mark.covers("mcp.list_tools.oauth.succeeds")
@pytest.mark.covers("mcp.call_tool.oauth.succeeds")
@pytest.mark.covers("mcp.call_tool.oauth.persists_across_processes")
@meta(
Subject(
domain=Domain.MCP,
route=Route.MCP,
)
)
@pytest.mark.parametrize("route", ("aggregate_sso", "explicit_header_jwt"))
@pytest.mark.parametrize("observed", (False, True), ids=("direct", "observed"))
def test_consent_list_call_and_cold_restart(
self,
client: ChatMcpClient,
resources: ResourceManager,
jwt_identity: Identity,
idp: Keycloak,
oauth_gateway: OAuthGateway,
route: Literal["aggregate_sso", "explicit_header_jwt"],
observed: bool,
) -> None:
alias: Final = f"e2elinear{unique_marker()}"
tool: Final = f"{alias}-{LINEAR_READONLY_TOOL}"
token: Final = idp.access_token(jwt_identity)
observation: Final = OAuthObservation(gateway_token=token)
edge: Final = (
start_provider_edge(
LiveEdge(observe_request=observation.observe),
mounts=MappingProxyType(
{"linear": "https://mcp.linear.app", ".well-known": "https://mcp.linear.app/.well-known"}
),
)
if observed
else None
)
if edge is not None:
resources.defer(edge.shutdown)
metadata: Final = (
unwrap(
get_external(
"https://mcp.linear.app/.well-known/oauth-authorization-server",
response_type=OAuthMetadata,
)
)
if observed
else None
)
created: Final = client.create_server(
McpServerCreateBody(
alias=alias,
server_name=alias,
url=f"{edge.edge.api_base('linear')}/mcp" if edge is not None else LINEAR_MCP_URL,
transport="http",
allow_all_keys=False,
auth_type="oauth2",
oauth2_flow="authorization_code",
per_server_oauth_discovery=route == "explicit_header_jwt",
issuer=metadata.issuer if metadata else None,
authorization_url=metadata.authorization_endpoint if metadata else None,
token_url=metadata.token_endpoint if metadata else None,
registration_url=metadata.registration_endpoint if metadata else None,
credentials=McpOauthCredentials(upstream_resource=LINEAR_MCP_URL) if observed else None,
)
)
resources.defer(lambda: client.delete_server(created.server_id))
assert client.server_user_credentials(created.server_id) == (), (
"scenario must start without upstream credentials"
)
unwrap(
client.proxy.transport.post(
"/team/member_add",
headers=client.proxy.transport.master,
json=TeamMemberAddBody(
team_id=jwt_identity.group, member=TeamMemberEntry(user_id=jwt_identity.user_id, role="user")
),
response_type=NoBody,
)
)
client.proxy.update_team(
TeamUpdateBody(
team_id=jwt_identity.group,
object_permission=ObjectPermission(mcp_servers=[created.server_id]),
)
)
headers: Final = {"x-litellm-api-key": f"Bearer {token}"} if route == "explicit_header_jwt" else {}
resources.defer(
lambda: client.revoke_user_token(
created.server_id,
AuthHeaders(authorization=f"Bearer {idp.access_token(jwt_identity)}"),
)
)
identity: Final = jwt_identity if route == "aggregate_sso" else None
first: Final = client.list_and_call(
alias,
headers,
InMemoryTokenStorage(),
LINEAR_STORAGE_STATE,
tool,
{},
base_url=oauth_gateway.base_url,
identity=identity,
)
assert_tool_result(first, tool)
credentials: Final = client.server_user_credentials(created.server_id)
assert len(credentials) == 1
assert credentials[0].user_id == jwt_identity.user_id
assert credentials[0].credential_type == "oauth2"
first_stored_oauth: Final = stored_oauth(jwt_identity.user_id, created.server_id)
if observed:
observation.assert_forwarded(first_stored_oauth)
oauth_gateway.restart()
fresh_token: Final = idp.access_token(jwt_identity)
observation.gateway_token = fresh_token
second: Final = client.list_and_call(
alias,
{"Authorization": f"Bearer {fresh_token}"} if identity is None else {},
InMemoryTokenStorage(),
LINEAR_STORAGE_STATE if identity is not None else None,
tool,
{},
base_url=oauth_gateway.base_url,
identity=identity,
allow_upstream_consent=False,
)
assert_tool_result(second, tool)
second_stored_oauth: Final = stored_oauth(jwt_identity.user_id, created.server_id)
if observed:
observation.assert_forwarded(second_stored_oauth)

View file

@ -706,28 +706,14 @@ class McpInfo(BaseModel):
logo_url: str | None = None
class McpOauthCredentials(BaseModel):
upstream_resource: str
class McpServerCreateBody(BaseModel):
"""POST /v1/mcp/server. For a gateway-managed OAuth server, `auth_type` is
`oauth2` and `oauth2_flow` is `authorization_code`; the upstream endpoints
are discovered and registered via DCR when left unset. `allow_all_keys`
false scopes the server to keys granted it through object_permission."""
"""POST /v1/mcp/server. `allow_all_keys` false scopes the server to keys
granted it through object_permission."""
alias: str
url: str
transport: str = "http"
allow_all_keys: bool = True
auth_type: str | None = None
oauth2_flow: Literal["client_credentials", "authorization_code"] | None = None
per_server_oauth_discovery: bool | None = None
issuer: str | None = None
authorization_url: str | None = None
token_url: str | None = None
registration_url: str | None = None
credentials: McpOauthCredentials | None = Field(default=None, repr=False)
server_name: str | None = None
description: str | None = None
mcp_info: McpInfo | None = None
@ -767,26 +753,6 @@ class McpServerListResponse(RootModel[list[McpServerRow]]):
"""GET /v1/mcp/server answers with a bare array of servers."""
class McpServerUserCredentialRow(BaseModel):
user_id: str
credential_type: Literal["oauth2", "byok"]
expires_at: str | None = None
connected_at: str | None = None
updated_at: str
class McpServerUserCredentialListResponse(RootModel[tuple[McpServerUserCredentialRow, ...]]):
"""GET /v1/mcp/server/{server_id}/user-credentials answers with a bare array."""
class McpOauthUserCredentialStatus(BaseModel):
server_id: str
has_credential: bool
expires_at: str | None = None
is_expired: bool = False
connected_at: str | None = None
class ToolsetTool(BaseModel):
server_id: str
tool_name: str

View file

@ -14,7 +14,6 @@ markers =
cli_determinism: drives the real claude CLI for several seconds; deselected unless E2E_CLI_DETERMINISM is set
redis_chaos: load test that pauses the proxy's Redis outright mid-run; needs a proxy booted from gateway/redis_chaos_ci_config.yml on the same host, and is deselected unless E2E_PERF_TESTS is set
quiet_stack: measures the proxy itself, so it runs while no other test on this host is hitting the stack; every other test waits for it to finish
mcp_oauth_live: real Linear OAuth consent via a captured browser session; deselected unless E2E_MCP_OAUTH_LIVE is set
provider_edge_host: routes provider traffic through the pytest host's edge in every fixture mode, so the gateway must reach the pytest host; deselected unless E2E_PROVIDER_EDGE_HOST_REACHABLE is set
owned_gateway: boots its own proxy from source against the stack's Postgres, so it needs DATABASE_URL on the pytest host; deselected unless E2E_OWNED_GATEWAY is set
otel_v2: needs a proxy running with LITELLM_OTEL_V2=true; deselected unless E2E_OTEL_V2 is set

View file

@ -697,6 +697,54 @@ def test_per_user_authorization_code_with_pkce_binds_the_token_to_the_authorizin
)
@pytest.mark.timeout(600)
def test_per_user_authorization_code_token_is_read_back_from_the_database_by_a_fresh_proxy_without_redis(
gateway: Gateway, tmp_path: Path
) -> None:
with mcp_peer() as peer, oauth_server() as auth, gateway.scenario() as scenario:
alias: Final = "cold" + uuid.uuid4().hex[:8]
identity: Final = _register_oauth(
scenario,
peer,
auth,
alias,
auth_type="oauth2",
oauth2_flow="authorization_code",
credentials={"client_id": "cold-client", "client_secret": "cold-secret", "scopes": ["tools.call"]},
)
owner_id: Final = scenario.user()
owner: Final = scenario.key(user_id=owner_id, object_permission={"mcp_servers": [identity]})
registered: Final = gateway.client.post(
f"/{alias}/register", json={"redirect_uris": [CLIENT_REDIRECT], "client_name": "integration"}
)
assert registered.status_code in (200, 201), registered.text
client_id: Final = str(_response_object(registered)["client_id"])
pkce: Final = _Pkce(secrets.token_urlsafe(32))
code, _ = _authorize_through_gateway(gateway, auth, alias, owner, client_id, pkce)
redeemed: Final = _redeem(gateway, alias, owner, client_id, code, pkce)
assert redeemed.status_code == 200, redeemed.text
token: Final = _issued_token(redeemed.json())
stored: Final = read_rows(
'SELECT credential_b64 FROM "LiteLLM_MCPUserCredentials" WHERE user_id = %s AND server_id = %s',
(owner_id, identity),
)
assert len(stored) == 1, stored
stored_bytes: Final = base64.urlsafe_b64decode(str(stored[0]["credential_b64"]))
assert token.encode() not in stored_bytes, "stored token is plaintext"
config: Final = tmp_path / "no_redis.yaml"
config.write_text(
"general_settings:\n"
" master_key: os.environ/LITELLM_MASTER_KEY\n"
" database_url: os.environ/DATABASE_URL\n"
" store_model_in_db: true\n"
)
peer.drain()
with owned_proxy(gateway, tmp_path, {}, config=config, remove_environment=("REDIS_HOST", "REDIS_PORT")) as cold:
called: Final = call_tool(cold, owner, identity, f"{alias}-add", ADD)
assert called.status_code == 200, called.text
assert _authorizations(peer) == (f"Bearer {token}".encode(),)
def test_authorization_request_without_pkce_is_refused_before_reaching_the_authorization_server(
gateway: Gateway,
) -> None:

View file

@ -52,7 +52,7 @@ CI = [".github/workflows/test-unit.yml"]
("mcp-dependencies", ["pyproject.toml"], "run"),
("mcp-dependencies", ["uv.lock"], "run"),
("mcp-dependencies", ["litellm/experimental_mcp_client/client.py"], "run"),
("mcp-dependencies", ["tests/e2e/mcp/oauth_chat_client.py"], "run"),
("mcp-dependencies", ["tests/e2e/mcp/datadog_mcp.py"], "run"),
("mcp-dependencies", ["litellm-proxy-extras/pyproject.toml"], "run"),
("mcp-dependencies", ["scripts/check_mcp_sdk_install.py"], "run"),
("mcp-dependencies", [".github/workflows/test-mcp-dependency-resolution.yml"], "run"),