Harden media and gameday access control

PLAN.md

@@ -26,6 +26,15 @@
 - Auth and session responses remain `no-store` so cached data is limited to app-owned clip state.
 - TeamSnap read queries now use cached-first stale-while-revalidate behavior on the client.
 
+## Completed V1 Hardening
+- Media and gameday mutations now stay within the authenticated session's selected team and player scope.
+- Upload and clip-creation failures now clean up orphaned files before bubbling errors back to the client.
+
+## Completed Asset Source Cleanup
+- Editable artwork sources now live in `frontend/assets/design/`, while the exported web-ready images remain in `frontend/public/`.
+- The splash artwork in `frontend/public/splash-art.svg` still serves as the editable vector source for the startup images in `frontend/public/`.
+- The existing `frontend/public/icon.svg` already covers the app icon artwork, so no separate raster-to-vector conversion was needed there.
+
 ## Storage Status
 - Backend media persists in the `backend-media` named Docker volume.
 

backend/app/routes/games.py

@@ -20,6 +20,14 @@ from ..schemas import (
 router = APIRouter(prefix="/games", tags=["games"])
 
 
+def resolve_session_player_id(session: UserSession, requested_player_id: str | None = None) -> str:
+    if not session.external_team_id or not session.external_player_id:
+        raise HTTPException(status_code=422, detail="Select a team and player before using gameday")
+    if requested_player_id and requested_player_id != session.external_player_id:
+        raise HTTPException(status_code=403, detail="This player does not match your selected session")
+    return session.external_player_id
+
+
 def assignment_to_response(assignment: GameAssignment) -> GameAssignmentResponse:
     normalized_url = f"/media/files/{assignment.clip.normalized_path}" if assignment.clip.normalized_path else None
     return GameAssignmentResponse(
@@ -57,9 +65,7 @@ def list_pins(
     session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> list[GameAssignmentResponse]:
-    player_id = external_player_id or session.external_player_id
-    if not player_id or not session.external_team_id:
-        raise HTTPException(status_code=422, detail="Provide a player to list pins")
+    player_id = resolve_session_player_id(session, external_player_id)
 
     query = select(GameAssignment).join(GameAssignment.clip).where(
         GameAssignment.external_team_id == session.external_team_id,
@@ -80,15 +86,15 @@ def list_assignments(
     response: Response,
     external_game_id: str,
     external_player_id: str | None = Query(default=None),
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> list[GameAssignmentResponse]:
+    resolve_session_player_id(session, external_player_id)
     query = select(GameAssignment).join(GameAssignment.clip).where(
+        GameAssignment.external_team_id == session.external_team_id,
         GameAssignment.external_game_id == external_game_id,
         AudioClip.hidden.is_(False),
     )
-    if external_player_id:
-        query = query.where(GameAssignment.external_player_id == external_player_id)
     assignments = db.scalars(query.order_by(AudioClip.sort_order.asc(), GameAssignment.updated_at.desc())).all()
     payload = [assignment_to_response(assignment) for assignment in assignments]
     etag, not_modified = prepare_conditional_response(request, payload)
@@ -102,38 +108,42 @@ def list_assignments(
 def create_assignment(
     external_game_id: str,
     payload: GameAssignmentCreate,
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> GameAssignmentResponse:
+    player_id = resolve_session_player_id(session, payload.external_player_id)
+    if payload.external_team_id != session.external_team_id:
+        raise HTTPException(status_code=403, detail="This team does not match your selected session")
     clip = db.get(AudioClip, payload.clip_id)
     if clip is None or clip.normalization_status != "ready":
         raise HTTPException(status_code=422, detail="Clip is not ready")
     if clip.hidden:
         raise HTTPException(status_code=404, detail="Clip not found")
-    if clip.asset.external_team_id != payload.external_team_id:
+    if clip.asset.external_team_id != session.external_team_id:
         raise HTTPException(status_code=422, detail="Clip does not belong to this team")
-    if clip.asset.owner_external_player_id != payload.external_player_id:
+    if clip.asset.owner_external_player_id != player_id:
         raise HTTPException(status_code=403, detail="You can only pin clips owned by that player")
 
     assignment = db.scalar(
         select(GameAssignment).where(
             GameAssignment.external_game_id == external_game_id,
             GameAssignment.clip_id == payload.clip_id,
+            GameAssignment.external_team_id == session.external_team_id,
         )
     )
     if assignment is None:
         assignment = GameAssignment(
-            external_team_id=payload.external_team_id,
+            external_team_id=session.external_team_id,
             external_game_id=external_game_id,
-            external_player_id=payload.external_player_id,
+            external_player_id=player_id,
             clip_id=payload.clip_id,
             batting_slot=payload.batting_slot,
             status=payload.status,
         )
         db.add(assignment)
     else:
-        assignment.external_team_id = payload.external_team_id
-        assignment.external_player_id = payload.external_player_id
+        assignment.external_team_id = session.external_team_id
+        assignment.external_player_id = player_id
         assignment.clip_id = payload.clip_id
         assignment.batting_slot = payload.batting_slot
         assignment.status = payload.status
@@ -147,14 +157,15 @@ def delete_assignment(
     external_game_id: str,
     assignment_id: int,
     external_player_id: str | None = Query(default=None),
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> None:
+    player_id = resolve_session_player_id(session, external_player_id)
     assignment = db.get(GameAssignment, assignment_id)
     if assignment is None or assignment.external_game_id != external_game_id:
         raise HTTPException(status_code=404, detail="Pin not found")
-    if external_player_id is not None and assignment.external_player_id != external_player_id:
-        raise HTTPException(status_code=403, detail="Pin does not belong to that player")
+    if assignment.external_team_id != session.external_team_id or assignment.external_player_id != player_id:
+        raise HTTPException(status_code=403, detail="Pin does not belong to your selected session")
 
     db.delete(assignment)
     db.commit()
@@ -165,13 +176,18 @@ def prepare_game(
     request: Request,
     response: Response,
     external_game_id: str,
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> GamePrepResponse:
+    resolve_session_player_id(session, None)
     assignments = db.scalars(
         select(GameAssignment)
         .join(GameAssignment.clip)
-        .where(GameAssignment.external_game_id == external_game_id, AudioClip.hidden.is_(False))
+        .where(
+            GameAssignment.external_team_id == session.external_team_id,
+            GameAssignment.external_game_id == external_game_id,
+            AudioClip.hidden.is_(False),
+        )
         .order_by(AudioClip.sort_order.asc(), GameAssignment.updated_at.desc())
     ).all()
     external_team_id = assignments[0].external_team_id if assignments else ""

backend/app/routes/media.py

@@ -29,6 +29,31 @@ router = APIRouter(prefix="/media", tags=["media"])
 DEFAULT_CLIP_LENGTH_MS = 30_000
 
 
+def resolve_media_scope(
+    session: UserSession,
+    *,
+    requested_team_id: str | None = None,
+    requested_player_id: str | None = None,
+    require_player: bool = False,
+) -> tuple[str, str | None]:
+    if session.is_admin:
+        team_id = requested_team_id or session.external_team_id
+        player_id = requested_player_id if requested_player_id is not None else session.external_player_id
+        if not team_id:
+            raise HTTPException(status_code=422, detail="Select a team before managing media")
+        if require_player and not player_id:
+            raise HTTPException(status_code=422, detail="Select a player before managing media")
+        return team_id, player_id
+
+    if not session.external_team_id or not session.external_player_id:
+        raise HTTPException(status_code=422, detail="Select a team and player before managing media")
+    if requested_team_id and requested_team_id != session.external_team_id:
+        raise HTTPException(status_code=403, detail="This team does not match your selected session")
+    if requested_player_id and requested_player_id != session.external_player_id:
+        raise HTTPException(status_code=403, detail="This player does not match your selected session")
+    return session.external_team_id, session.external_player_id
+
+
 def clip_to_response(clip: AudioClip) -> AudioClipResponse:
     normalized_url = f"/media/files/{clip.normalized_path}" if clip.normalized_path else None
     waveform = storage.load_or_generate_waveform(clip.asset.storage_path)
@@ -61,10 +86,15 @@ def prepare_conditional_response(
     return etag, is_matching_etag(request, etag)
 
 
-def can_manage_asset(session: UserSession, asset: AudioAsset, owner_external_player_id: str | None = None) -> bool:
-    if session.is_admin or asset.uploaded_by_session_id == session.id:
+def can_manage_asset(session: UserSession, asset: AudioAsset) -> bool:
+    if session.is_admin:
         return True
-    return owner_external_player_id is not None and asset.owner_external_player_id == owner_external_player_id
+    return (
+        session.external_team_id is not None
+        and session.external_player_id is not None
+        and asset.external_team_id == session.external_team_id
+        and asset.owner_external_player_id == session.external_player_id
+    )
 
 
 def next_clip_sort_order(db: Session, *, external_team_id: str, owner_external_player_id: str) -> int:
@@ -91,42 +121,52 @@ def create_asset_with_default_clip(
     size_bytes: int,
     storage_path: str,
 ) -> AudioAssetResponse:
-    asset = AudioAsset(
-        external_team_id=external_team_id,
-        owner_external_player_id=owner_external_player_id,
-        uploaded_by_session_id=session.id,
-        title=title,
-        original_filename=original_filename,
-        mime_type=mime_type,
-        size_bytes=size_bytes,
-        storage_path=storage_path,
-    )
-    db.add(asset)
-    db.flush()
-
-    clip = AudioClip(
-        asset_id=asset.id,
-        label=asset.title,
-        start_ms=0,
-        end_ms=DEFAULT_CLIP_LENGTH_MS,
-        sort_order=next_clip_sort_order(
-            db,
+    normalized_path: str | None = None
+    try:
+        asset = AudioAsset(
             external_team_id=external_team_id,
             owner_external_player_id=owner_external_player_id,
-        ),
-        normalization_status="processing",
-    )
-    db.add(clip)
-    db.flush()
+            uploaded_by_session_id=session.id,
+            title=title,
+            original_filename=original_filename,
+            mime_type=mime_type,
+            size_bytes=size_bytes,
+            storage_path=storage_path,
+        )
+        db.add(asset)
+        db.flush()
 
-    normalized_name = f"clip-{clip.id}-{secrets.token_hex(6)}{Path(asset.storage_path).suffix or '.bin'}"
-    clip.normalized_path = storage.normalize_clip(asset.storage_path, normalized_name)
-    clip.normalization_status = "ready"
-    storage.generate_waveform(asset.storage_path)
+        clip = AudioClip(
+            asset_id=asset.id,
+            label=asset.title,
+            start_ms=0,
+            end_ms=DEFAULT_CLIP_LENGTH_MS,
+            sort_order=next_clip_sort_order(
+                db,
+                external_team_id=external_team_id,
+                owner_external_player_id=owner_external_player_id,
+            ),
+            normalization_status="processing",
+        )
+        db.add(clip)
+        db.flush()
 
-    db.commit()
-    db.refresh(asset)
-    return AudioAssetResponse.model_validate(asset, from_attributes=True)
+        normalized_name = f"clip-{clip.id}-{secrets.token_hex(6)}{Path(asset.storage_path).suffix or '.bin'}"
+        normalized_path = str(Path("normalized") / normalized_name)
+        normalized_path = storage.normalize_clip(asset.storage_path, normalized_name)
+        clip.normalized_path = normalized_path
+        clip.normalization_status = "ready"
+        storage.generate_waveform(asset.storage_path)
+
+        db.commit()
+        db.refresh(asset)
+        return AudioAssetResponse.model_validate(asset, from_attributes=True)
+    except Exception:
+        db.rollback()
+        if normalized_path:
+            storage.delete_relative_path(normalized_path)
+        storage.delete_relative_path(storage_path)
+        raise
 
 
 def download_media_to_storage(url: str) -> tuple[str, int, str, str]:
@@ -180,6 +220,12 @@ async def upload_audio(
     session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> AudioAssetResponse:
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=external_team_id,
+        requested_player_id=owner_external_player_id,
+        require_player=True,
+    )
     extension = Path(file.filename or "upload.bin").suffix or ".bin"
     storage_name = f"{secrets.token_hex(16)}{extension}"
     relative_path, size = storage.save_upload(file, storage_name)
@@ -202,6 +248,12 @@ def import_audio(
     session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> AudioAssetResponse:
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=payload.external_team_id,
+        requested_player_id=payload.owner_external_player_id,
+        require_player=True,
+    )
     relative_path, size_bytes, original_filename, source_title = download_media_to_storage(payload.url)
     title = payload.title.strip() if payload.title else ""
     if not title:
@@ -226,9 +278,14 @@ def list_assets(
     response: Response,
     external_team_id: str,
     owner_external_player_id: str | None = None,
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> list[AudioAssetResponse]:
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=external_team_id,
+        requested_player_id=owner_external_player_id,
+    )
     query = select(AudioAsset).where(AudioAsset.external_team_id == external_team_id)
     if owner_external_player_id:
         query = query.where(AudioAsset.owner_external_player_id == owner_external_player_id)
@@ -251,7 +308,7 @@ def delete_asset(
     asset = db.get(AudioAsset, asset_id)
     if asset is None:
         raise HTTPException(status_code=404, detail="Asset not found")
-    if not can_manage_asset(session, asset, owner_external_player_id):
+    if not can_manage_asset(session, asset):
         raise HTTPException(status_code=403, detail="You can only delete your own uploads")
 
     clips = db.scalars(select(AudioClip).where(AudioClip.asset_id == asset.id)).all()
@@ -279,7 +336,7 @@ def update_asset(
     asset = db.get(AudioAsset, asset_id)
     if asset is None:
         raise HTTPException(status_code=404, detail="Asset not found")
-    if not can_manage_asset(session, asset, owner_external_player_id):
+    if not can_manage_asset(session, asset):
         raise HTTPException(status_code=403, detail="You can only update your own uploads")
 
     title = payload.title.strip()
@@ -295,15 +352,21 @@ def update_asset(
 @router.post("/clips", response_model=AudioClipResponse)
 def create_clip(
     payload: AudioClipCreate,
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> AudioClipResponse:
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=payload.external_team_id,
+        requested_player_id=payload.owner_external_player_id,
+        require_player=True,
+    )
     asset = db.get(AudioAsset, payload.asset_id)
     if asset is None:
         raise HTTPException(status_code=404, detail="Asset not found")
-    if asset.external_team_id != payload.external_team_id:
+    if asset.external_team_id != external_team_id:
         raise HTTPException(status_code=422, detail="Clip does not belong to this team")
-    if asset.owner_external_player_id != payload.owner_external_player_id:
+    if asset.owner_external_player_id != owner_external_player_id:
         raise HTTPException(status_code=403, detail="You can only create clips for that player")
     if payload.end_ms <= payload.start_ms:
         raise HTTPException(status_code=422, detail="Clip end must be greater than start")
@@ -315,8 +378,8 @@ def create_clip(
         end_ms=payload.end_ms,
         sort_order=next_clip_sort_order(
             db,
-            external_team_id=payload.external_team_id,
-            owner_external_player_id=payload.owner_external_player_id,
+            external_team_id=external_team_id,
+            owner_external_player_id=owner_external_player_id,
         ),
         normalization_status="processing",
     )
@@ -342,7 +405,7 @@ def update_clip(
     clip = db.get(AudioClip, clip_id)
     if clip is None:
         raise HTTPException(status_code=404, detail="Clip not found")
-    if not can_manage_asset(session, clip.asset, owner_external_player_id):
+    if not can_manage_asset(session, clip.asset):
         raise HTTPException(status_code=403, detail="You can only update clips from your own uploads")
     if payload.end_ms <= payload.start_ms:
         raise HTTPException(status_code=422, detail="Clip end must be greater than start")
@@ -369,7 +432,7 @@ def delete_clip(
     clip = db.get(AudioClip, clip_id)
     if clip is None:
         raise HTTPException(status_code=404, detail="Clip not found")
-    if not can_manage_asset(session, clip.asset, owner_external_player_id):
+    if not can_manage_asset(session, clip.asset):
         raise HTTPException(status_code=403, detail="You can only delete clips from your own uploads")
 
     db.execute(delete(GameAssignment).where(GameAssignment.clip_id == clip.id))
@@ -386,9 +449,14 @@ def list_clips(
     external_team_id: str,
     owner_external_player_id: str | None = None,
     include_hidden: bool = False,
-    _: UserSession = Depends(require_session),
+    session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> list[AudioClipResponse]:
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=external_team_id,
+        requested_player_id=owner_external_player_id,
+    )
     query = (
         select(AudioClip)
         .join(AudioClip.asset)
@@ -414,15 +482,19 @@ def reorder_clips(
     session: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> None:
-    if not session.is_admin and session.external_team_id != payload.external_team_id:
-        raise HTTPException(status_code=403, detail="You can only reorder clips for your selected team")
+    external_team_id, owner_external_player_id = resolve_media_scope(
+        session,
+        requested_team_id=payload.external_team_id,
+        requested_player_id=payload.owner_external_player_id,
+        require_player=True,
+    )
 
     clips = db.scalars(
         select(AudioClip)
         .join(AudioClip.asset)
         .where(
-            AudioAsset.external_team_id == payload.external_team_id,
-            AudioAsset.owner_external_player_id == payload.owner_external_player_id,
+            AudioAsset.external_team_id == external_team_id,
+            AudioAsset.owner_external_player_id == owner_external_player_id,
         )
     ).all()
     clips_by_id = {clip.id: clip for clip in clips}

backend/tests/test_api.py

@@ -11,7 +11,7 @@ from fastapi.testclient import TestClient
 from app.config import settings
 from app.database import Base, SessionLocal, engine
 from app.main import app
-from app.models import AudioAsset, AudioClip, UserSession
+from app.models import AudioAsset, AudioClip, GameAssignment, UserSession
 from app.routes.teamsnap import rewrite_teamsnap_urls
 
 
@@ -344,6 +344,63 @@ def test_player_can_pin_a_clip_to_multiple_games_independently() -> None:
     assert [item["clip_id"] for item in pins.json()] == [first_clip.id]
 
 
+def test_player_cannot_pin_another_players_clip() -> None:
+    db = SessionLocal()
+    owner_session = UserSession(
+        session_token="owner-session",
+        provider="teamsnap",
+        external_team_id="team-1",
+        external_player_id="player-1",
+    )
+    attacker_session = UserSession(
+        session_token="attacker-session",
+        provider="teamsnap",
+        external_team_id="team-1",
+        external_player_id="player-2",
+    )
+    db.add_all([owner_session, attacker_session])
+    db.flush()
+
+    asset = AudioAsset(
+        external_team_id="team-1",
+        owner_external_player_id="player-1",
+        uploaded_by_session_id=owner_session.id,
+        title="Song",
+        original_filename="song.mp3",
+        mime_type="audio/mpeg",
+        size_bytes=123,
+        storage_path="uploads/song.mp3",
+    )
+    db.add(asset)
+    db.flush()
+    clip = AudioClip(
+        asset_id=asset.id,
+        label="Intro",
+        start_ms=0,
+        end_ms=10000,
+        normalization_status="ready",
+        normalized_path="clips/intro.mp3",
+    )
+    db.add(clip)
+    db.commit()
+    db.refresh(clip)
+    db.close()
+
+    client.cookies.set(settings.session_cookie_name, "attacker-session")
+    response = client.post(
+        "/games/game-1/assignments",
+        json={
+            "external_team_id": "team-1",
+            "external_player_id": "player-1",
+            "clip_id": clip.id,
+            "batting_slot": 1,
+            "status": "ready",
+        },
+    )
+
+    assert response.status_code == 403
+
+
 def test_upload_creates_default_clip_and_clip_ranges_can_be_updated() -> None:
     login = client.post("/auth/admin/login", json={"username": "admin", "password": "admin"})
     assert login.status_code == 200
@@ -552,7 +609,12 @@ def test_hidden_clips_are_removed_from_gameday_views_but_remain_pinnable() -> No
 
 def test_clip_updates_can_use_player_scoped_authorization() -> None:
     uploader_session = UserSession(session_token="uploader-session", provider="teamsnap")
-    editor_session = UserSession(session_token="editor-session", provider="teamsnap")
+    editor_session = UserSession(
+        session_token="editor-session",
+        provider="teamsnap",
+        external_team_id="team-3",
+        external_player_id="player-3",
+    )
 
     db = SessionLocal()
     db.add_all([uploader_session, editor_session])
@@ -597,6 +659,59 @@ def test_clip_updates_can_use_player_scoped_authorization() -> None:
     assert updated_clip["label"] == "Player clip"
 
 
+def test_clip_updates_reject_cross_player_scopes() -> None:
+    uploader_session = UserSession(
+        session_token="uploader-session",
+        provider="teamsnap",
+        external_team_id="team-3",
+        external_player_id="player-3",
+    )
+    editor_session = UserSession(
+        session_token="editor-session",
+        provider="teamsnap",
+        external_team_id="team-3",
+        external_player_id="player-4",
+    )
+
+    db = SessionLocal()
+    db.add_all([uploader_session, editor_session])
+    db.flush()
+
+    asset = AudioAsset(
+        external_team_id="team-3",
+        owner_external_player_id="player-3",
+        uploaded_by_session_id=uploader_session.id,
+        title="Player track",
+        original_filename="player-track.mp3",
+        mime_type="audio/mpeg",
+        size_bytes=123,
+        storage_path="uploads/player-track.mp3",
+    )
+    db.add(asset)
+    db.flush()
+    clip = AudioClip(
+        asset_id=asset.id,
+        label="Player clip",
+        start_ms=0,
+        end_ms=30000,
+        normalization_status="ready",
+        normalized_path="clips/player-clip.mp3",
+    )
+    db.add(clip)
+    db.commit()
+    db.refresh(clip)
+    db.close()
+
+    client.cookies.set(settings.session_cookie_name, "editor-session")
+    update = client.patch(
+        f"/media/clips/{clip.id}",
+        params={"owner_external_player_id": "player-3"},
+        json={"start_ms": 1500, "end_ms": 9000},
+    )
+
+    assert update.status_code == 403
+
+
 def test_create_clip_uses_team_and_player_scope() -> None:
     login = client.post("/auth/admin/login", json={"username": "admin", "password": "admin"})
     assert login.status_code == 200
@@ -634,6 +749,57 @@ def test_create_clip_uses_team_and_player_scope() -> None:
     assert clip["end_ms"] == 6000
 
 
+def test_create_asset_with_default_clip_cleans_up_files_on_failure(monkeypatch: pytest.MonkeyPatch) -> None:
+    from app.routes import media as media_routes
+
+    db = SessionLocal()
+    session = UserSession(
+        session_token="cleanup-session",
+        provider="teamsnap",
+        external_team_id="team-clean",
+        external_player_id="player-clean",
+    )
+    db.add(session)
+    db.commit()
+    db.refresh(session)
+
+    source_relative_path = "uploads/cleanup-source.wav"
+    source_path = settings.media_root / source_relative_path
+    source_path.parent.mkdir(parents=True, exist_ok=True)
+    source_path.write_bytes(make_test_wav_bytes())
+    normalized_path = settings.media_root / "normalized" / "cleanup-copy.wav"
+
+    def fake_normalize_clip(source_relative_path_arg: str, clip_name: str) -> str:
+        normalized_path.parent.mkdir(parents=True, exist_ok=True)
+        normalized_path.write_bytes((settings.media_root / source_relative_path_arg).read_bytes())
+        return "normalized/cleanup-copy.wav"
+
+    def fake_generate_waveform(source_relative_path_arg: str, bins: int = media_routes.WAVEFORM_PEAK_COUNT) -> dict[str, int | list[int]]:
+        raise RuntimeError("waveform failed")
+
+    monkeypatch.setattr(media_routes.storage, "normalize_clip", fake_normalize_clip)
+    monkeypatch.setattr(media_routes.storage, "generate_waveform", fake_generate_waveform)
+
+    with pytest.raises(RuntimeError):
+        media_routes.create_asset_with_default_clip(
+            db=db,
+            session=session,
+            external_team_id="team-clean",
+            owner_external_player_id="player-clean",
+            title="Cleanup track",
+            original_filename="cleanup-source.wav",
+            mime_type="audio/wav",
+            size_bytes=source_path.stat().st_size,
+            storage_path=source_relative_path,
+        )
+
+    assert not source_path.exists()
+    assert not normalized_path.exists()
+    assert db.query(AudioAsset).count() == 0
+    assert db.query(AudioClip).count() == 0
+    db.close()
+
+
 def test_asset_title_can_be_edited() -> None:
     login = client.post("/auth/admin/login", json={"username": "admin", "password": "admin"})
     assert login.status_code == 200