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fdd84d04a0
Self-contained package under app/model_downloader/: - Allowlist + path-validated downloads (SSRF guard: HF/Civitai/localhost + model extension). - Streaming worker: writes to <final>.tmp, atomic rename on success, cooperative cancellation with epoch-based session identity, orphan .tmp sweep. - Unified availability probe with per-URL gated/size caching; is_hf_downloadable recomputed per call so login/license changes surface within one poll. - HuggingFace OAuth 2.0 PKCE flow with loopback callback server and on-disk (0600) token storage + transparent refresh. - Pydantic request/response schemas and aiohttp routes under api/. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
82 lines
2.1 KiB
Python
82 lines
2.1 KiB
Python
"""Response schemas for the model-downloader API."""
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from __future__ import annotations
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from typing import Literal, Optional
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from pydantic import BaseModel
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ModelState = Literal["available", "missing", "downloading"]
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class DownloadProgress(BaseModel):
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"""Embedded in a model entry when its state is ``downloading``."""
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bytes_downloaded: int
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total_bytes: Optional[int] = None
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progress: Optional[float] = None # fraction in [0,1]; null until total known
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class ModelStatusEntry(BaseModel):
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"""Everything the UI needs to render one row, in one shot.
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``state`` reflects what the server has on disk + in-flight; ``file_size``
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and ``is_hf_downloadable`` come from probes (intrinsic; cached).
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The HF fields are populated for every poll (cached on the server),
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so license-acceptance flips show up within one poll interval without
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any frontend cache invalidation.
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"""
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state: ModelState
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progress: Optional[DownloadProgress] = None
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file_size: Optional[int] = None
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# HF-only: True iff the server can fetch this URL with current auth
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# state. False iff gated and lacking access. None for non-HF URLs.
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is_hf_downloadable: Optional[bool] = None
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class HfAuthStatus(BaseModel):
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"""Snapshot of HF login state, embedded in availability response."""
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token_available: bool
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eligible: bool
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class AvailabilityStatusResponse(BaseModel):
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models: dict[str, ModelStatusEntry]
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hf_auth: HfAuthStatus
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class DownloadModelsResponse(BaseModel):
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accepted: bool
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scheduled: list[str]
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class CancelDownloadSessionResponse(BaseModel):
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cancelled: bool
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class HfAuthTokenStatusResponse(BaseModel):
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token_available: bool
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username: Optional[str] = None
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class HfAuthLoginStartResponse(BaseModel):
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authorize_url: str
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class HfAuthLogoutResponse(BaseModel):
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logged_out: bool
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__all__ = [
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"ModelState",
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"DownloadProgress",
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"ModelStatusEntry",
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"HfAuthStatus",
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"AvailabilityStatusResponse",
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"DownloadModelsResponse",
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"CancelDownloadSessionResponse",
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"HfAuthTokenStatusResponse",
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"HfAuthLoginStartResponse",
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"HfAuthLogoutResponse",
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]
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