Private
Public Access
ksmith
f2a59f798b
Images live on the app server's local disk (uploads/), served through an authenticated, room-membership-gated endpoint since rooms can be private. Uploads are streamed with a byte-count cap, validated as genuine decodable images with Pillow (not just a spoofed Content-Type), and downscaled to 2000px on the longer side (except GIF, to preserve animation). Backend: MessageImage model + nullable Message.content/image_id with a content-or-image CheckConstraint, upload/serve endpoints in rooms.py, WS message envelope gains image_id, push notification body says "sent an image" for image-only messages. Frontend: Composer gets an attach button with upload progress and a thumbnail chip; MessageList renders images inline with a click-to-zoom ImageLightbox.
58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
"""message images
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Revision ID: c610bdb04567
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Revises: 3350c67553ad
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Create Date: 2026-08-14 12:00:58.698701
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = 'c610bdb04567'
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down_revision: Union[str, Sequence[str], None] = '3350c67553ad'
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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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"""Upgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('message_images',
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sa.Column('id', sa.Uuid(), nullable=False),
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sa.Column('room_id', sa.Uuid(), nullable=False),
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sa.Column('uploaded_by', sa.Uuid(), nullable=False),
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sa.Column('storage_filename', sa.String(length=64), nullable=False),
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sa.Column('content_type', sa.String(length=50), nullable=False),
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sa.Column('size_bytes', sa.BigInteger(), nullable=False),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.ForeignKeyConstraint(['room_id'], ['rooms.id'], ),
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sa.ForeignKeyConstraint(['uploaded_by'], ['users.id'], ),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_message_images_room_id'), 'message_images', ['room_id'], unique=False)
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op.add_column('messages', sa.Column('image_id', sa.Uuid(), nullable=True))
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op.alter_column('messages', 'content',
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existing_type=sa.TEXT(),
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nullable=True)
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op.create_foreign_key('messages_image_id_fkey', 'messages', 'message_images', ['image_id'], ['id'])
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op.create_check_constraint('messages_content_or_image_required', 'messages', 'content IS NOT NULL OR image_id IS NOT NULL')
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# ### end Alembic commands ###
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def downgrade() -> None:
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"""Downgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_constraint('messages_content_or_image_required', 'messages', type_='check')
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op.drop_constraint('messages_image_id_fkey', 'messages', type_='foreignkey')
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op.alter_column('messages', 'content',
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existing_type=sa.TEXT(),
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nullable=False)
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op.drop_column('messages', 'image_id')
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op.drop_index(op.f('ix_message_images_room_id'), table_name='message_images')
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op.drop_table('message_images')
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# ### end Alembic commands ###
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