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from fastapi.testclient import TestClient
from app import main
from app.config import settings
from app.repository import InMemoryRepo
def setup_function() -> None:
main.repo = InMemoryRepo()
def api_headers(**extra: str) -> dict[str, str]:
headers = dict(extra)
if settings.api_shared_secret:
headers["x-api-key"] = settings.api_shared_secret
return headers
def create_session(client: TestClient) -> str:
response = client.post("/v1/auth/guest", headers=api_headers(), json={})
assert response.status_code == 200
return response.json()["session_id"]
def create_project(client: TestClient, session_id: str) -> str:
response = client.post(
"/v1/projects",
headers=api_headers(**{"x-session-id": session_id}),
json={"title": "Private project", "mode": "part", "output_type": "3d_solid"},
)
assert response.status_code == 200
return response.json()["id"]
def override_settings(**updates: int):
previous = {key: getattr(settings, key) for key in updates}
for key, value in updates.items():
object.__setattr__(settings, key, value)
return previous
def restore_settings(previous: dict[str, int]) -> None:
for key, value in previous.items():
object.__setattr__(settings, key, value)
def test_project_access_is_scoped_to_session() -> None:
with TestClient(main.app) as client:
owner = create_session(client)
attacker = create_session(client)
project_id = create_project(client, owner)
owner_response = client.get(f"/v1/projects/{project_id}", headers=api_headers(**{"x-session-id": owner}))
assert "owner_session_id" not in owner_response.json()["project"]
assert owner not in owner_response.text
response = client.get(f"/v1/projects/{project_id}", headers=api_headers(**{"x-session-id": attacker}))
assert response.status_code == 403
def test_state_change_rejects_untrusted_browser_origin() -> None:
with TestClient(main.app) as client:
response = client.post(
"/v1/auth/guest", headers=api_headers(origin="https://attacker.example"), json={},
)
assert response.status_code == 403
def test_generation_uses_explicit_parent_and_is_idempotent() -> None:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
payload = {
"message": "A bracket 80 width and 6 thickness",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "same-request-key",
}
headers = api_headers(**{"x-session-id": session})
first = client.post(f"/v1/projects/{project_id}/generations", headers=headers, json=payload)
second = client.post(f"/v1/projects/{project_id}/generations", headers=headers, json=payload)
assert first.status_code == 202
assert second.status_code == 202
assert first.json()["id"] == second.json()["id"]
def test_generation_rejects_message_beyond_profile_limit() -> None:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
payload = {
"message": "x" * 1201,
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "too-long-balanced",
}
headers = api_headers(**{"x-session-id": session})
response = client.post(f"/v1/projects/{project_id}/generations", headers=headers, json=payload)
assert response.status_code == 422
detail = response.json()["detail"]
assert detail["profile"] == "balanced"
assert detail["max_prompt_chars"] == 1200
def test_legacy_generate_rejects_prompt_beyond_profile_limit() -> None:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
headers = api_headers(**{"x-session-id": session})
response = client.post(
f"/v1/projects/{project_id}/generate",
headers=headers,
json={"prompt": "x" * 701, "profile": "fast"},
)
assert response.status_code == 422
detail = response.json()["detail"]
assert detail["profile"] == "fast"
assert detail["max_prompt_chars"] == 700
def test_clarification_rejects_message_beyond_profile_limit() -> None:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
run, _ = main.repo.create_run(
project_id=project_id,
session_id=session,
parent_version_id=None,
idempotency_key="awaiting-clarification",
message="x" * 1190,
attachment_ids=[],
profile="balanced",
)
main.repo.update_run(project_id, run.id, status="awaiting_clarification", clarification_questions=["Need one detail"])
headers = api_headers(**{"x-session-id": session})
response = client.post(
f"/v1/projects/{project_id}/generations/{run.id}/clarification",
headers=headers,
json={"answer": "y" * 50},
)
assert response.status_code == 422
detail = response.json()["detail"]
assert detail["profile"] == "balanced"
assert detail["max_prompt_chars"] == 1200
def test_guest_project_generation_cap_is_enforced_per_project() -> None:
previous = override_settings(guest_project_generation_cap=1, guest_runs_per_window=10)
try:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
headers = api_headers(**{"x-session-id": session})
first = client.post(
f"/v1/projects/{project_id}/generations",
headers=headers,
json={
"message": "Base bracket 80x50x6",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "project-cap-first",
},
)
assert first.status_code == 202
second = client.post(
f"/v1/projects/{project_id}/generations",
headers=headers,
json={
"message": "Refine the same bracket with 4 holes",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "project-cap-second",
},
)
assert second.status_code == 429
detail = second.json()["detail"]
assert detail["limit_type"] == "project_generation_cap"
assert detail["project_generation_cap"] == 1
finally:
restore_settings(previous)
def test_per_ip_session_cap_blocks_new_guest_sessions() -> None:
previous = override_settings(
ip_sessions_per_window=1,
guest_runs_per_window=10,
)
try:
with TestClient(main.app) as client:
headers = {**api_headers(), "x-forwarded-for": "203.0.113.42"}
first = client.post("/v1/auth/guest", headers=headers, json={})
assert first.status_code == 200
second = client.post("/v1/auth/guest", headers=headers, json={})
assert second.status_code == 429
assert second.json()["detail"]["limit_type"] == "ip_session_cap"
finally:
restore_settings(previous)
def test_per_ip_run_cap_blocks_additional_generations() -> None:
previous = override_settings(
ip_runs_per_window=1,
guest_runs_per_window=10,
guest_project_generation_cap=0,
guest_project_token_cap=0,
)
try:
with TestClient(main.app) as client:
headers = {**api_headers(), "x-forwarded-for": "203.0.113.42"}
session = client.post("/v1/auth/guest", headers=headers, json={}).json()["session_id"]
project_id = create_project(client, session)
run_headers = {**headers, "x-session-id": session}
first = client.post(
f"/v1/projects/{project_id}/generations",
headers=run_headers,
json={
"message": "Base bracket 80x50x6",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "ip-run-1",
},
)
assert first.status_code == 202
second = client.post(
f"/v1/projects/{project_id}/generations",
headers=run_headers,
json={
"message": "Add 4 holes",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "ip-run-2",
},
)
assert second.status_code == 429
assert second.json()["detail"]["limit_type"] == "ip_run_cap"
finally:
restore_settings(previous)
def test_guest_project_token_cap_blocks_additional_runs() -> None:
previous = override_settings(
guest_project_token_cap=1000,
vision_summary_max_tokens=220,
guest_runs_per_window=10,
)
try:
with TestClient(main.app) as client:
session = create_session(client)
project_id = create_project(client, session)
run, _ = main.repo.create_run(
project_id=project_id,
session_id=session,
parent_version_id=None,
idempotency_key="token-cap-existing-run",
message="Initial bracket",
attachment_ids=[],
profile="balanced",
)
main.repo.update_run(
project_id,
run.id,
status="completed",
telemetry={"spec_usage": {"total_tokens": 650}, "cad_usage": {"total_tokens": 500}},
)
response = client.post(
f"/v1/projects/{project_id}/generations",
headers=api_headers(**{"x-session-id": session}),
json={
"message": "Make it a little taller",
"parent_version_id": None,
"attachment_ids": [],
"profile": "balanced",
"idempotency_key": "token-cap-next-run",
},
)
assert response.status_code == 429
detail = response.json()["detail"]
assert detail["limit_type"] == "project_token_cap"
assert detail["project_token_cap"] == 1000
assert detail["used_tokens"] == 1150
finally:
restore_settings(previous)
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