bvandeusen
96c29c370b
Render a post body faithfully by serving our stored copies of inline images instead of hotlinking the public CDN. The join key is the CDN filehash (32-hex MD5) shared between a body <img src> and the media URL we downloaded (the same identity extract_media dedups by): - utils.paths.filehash_from_url — one source of truth for the extractor; patreon_client._filehash now delegates so capture- and render-time hashing cannot drift. - ImageRecord gains source_url (provenance) + source_filehash (indexed match key); migration 0051. - the per-media sidecar carries the file's source_url; the importer persists it (NULL-only) on the ImageRecord via _apply_sidecar. - post_feed_service.get_post remaps body <img src> -> /images/<path> for every inline image whose filehash maps to a stored image of THIS artist; unmatched / pre-Phase-2 images keep hotlinking. Pre-existing on-disk images have no filehash yet, so they fall back to hotlinking until re-downloaded; localization is forward-looking. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
"""image_record: source_url + source_filehash (inline-image localization)
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#830 Phase 2. To render a post body faithfully we serve LOCAL copies of inline
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images instead of hotlinking the public CDN. The join key between a body
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`<img src=CDN>` and the local file is the CDN's 32-hex filehash (the same
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identity extract_media dedups by). Persist it (indexed) plus the full source
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URL for provenance/debugging. Both NULL for filesystem-imported / pre-existing
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rows — those fall back to hotlinking until re-downloaded.
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Revision ID: 0051
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Revises: 0050
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Create Date: 2026-06-14
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"""
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from typing import Sequence, Union
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import sqlalchemy as sa
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from alembic import op
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revision: str = "0051"
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down_revision: Union[str, None] = "0050"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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op.add_column("image_record", sa.Column("source_url", sa.Text(), nullable=True))
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op.add_column(
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"image_record", sa.Column("source_filehash", sa.String(length=32), nullable=True)
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)
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op.create_index(
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"ix_image_record_source_filehash", "image_record", ["source_filehash"]
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)
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def downgrade() -> None:
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op.drop_index("ix_image_record_source_filehash", table_name="image_record")
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op.drop_column("image_record", "source_filehash")
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op.drop_column("image_record", "source_url")
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