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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>
42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
"""Parsers for the ``huggingface.co`` URL shape we accept in workflows.
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The download API accepts URLs of the form
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``https://huggingface.co/<org>/<repo>/resolve/<rev>/<path/to/file>``.
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We need to recover ``<org>/<repo>`` (the *repo_id*) from such URLs for
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``huggingface_hub`` API calls (notably ``HfApi.auth_check``).
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"""
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from __future__ import annotations
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from typing import Optional
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from urllib.parse import urlparse
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_HF_HOST = "huggingface.co"
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def is_hf_url(url: str) -> bool:
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"""Cheap host check — does this URL point at huggingface.co?"""
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try:
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return urlparse(url).hostname == _HF_HOST
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except ValueError:
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return False
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def repo_id_from_url(url: str) -> Optional[str]:
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"""Extract ``<org>/<repo>`` from an HF model file URL.
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Returns ``None`` if the URL isn't on huggingface.co or doesn't look
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like a model-file URL. The expected shape is
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``/<org>/<repo>/resolve/<rev>/<path>`` — anything else
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(datasets, spaces, /tree/, /blob/, …) we treat as out of scope here.
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"""
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if not is_hf_url(url):
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return None
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parts = urlparse(url).path.lstrip("/").split("/")
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if len(parts) < 4 or parts[2] != "resolve":
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return None
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org, repo = parts[0], parts[1]
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if not org or not repo:
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return None
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return f"{org}/{repo}"
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