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https://github.com/pewdiepie-archdaemon/odysseus.git
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76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
"""Small helpers for route-local upload size caps."""
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import os
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from fastapi import HTTPException, UploadFile
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DEFAULT_CHAT_UPLOAD_MAX_BYTES = 10 * 1024 * 1024
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CHAT_UPLOAD_MAX_BYTES_ENV = "ODYSSEUS_CHAT_UPLOAD_MAX_BYTES"
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def format_byte_limit(limit: int) -> str:
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if limit % (1024 * 1024) == 0:
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return f"{limit // (1024 * 1024)} MB"
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if limit % 1024 == 0:
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return f"{limit // 1024} KB"
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return f"{limit} bytes"
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def read_byte_limit_env(name: str, default: int) -> int:
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raw = os.getenv(name)
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if raw is None or not raw.strip():
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return default
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try:
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limit = int(raw)
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except ValueError as exc:
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raise ValueError(f"{name} must be an integer byte count") from exc
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if limit < 1:
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raise ValueError(f"{name} must be greater than 0")
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return limit
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def get_chat_upload_max_bytes() -> int:
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return read_byte_limit_env(CHAT_UPLOAD_MAX_BYTES_ENV, DEFAULT_CHAT_UPLOAD_MAX_BYTES)
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# Per-route upload byte-limits, single-sourced here (issue #3364). Each is
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# validated + env-overridable via read_byte_limit_env: set the matching
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# ODYSSEUS_*_MAX_BYTES env var to an integer byte count to tune it; an invalid
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# value fails fast at import rather than crashing mid-request. Defaults match
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# the prior per-route values, so behavior is unchanged unless an env var is set.
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GALLERY_UPLOAD_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_GALLERY_UPLOAD_MAX_BYTES", 100 * 1024 * 1024
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)
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GALLERY_TRANSFORM_UPLOAD_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_GALLERY_TRANSFORM_UPLOAD_MAX_BYTES", 25 * 1024 * 1024
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)
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EDITOR_DRAFT_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_EDITOR_DRAFT_MAX_BYTES", 256 * 1024 * 1024
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)
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MEMORY_IMPORT_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_MEMORY_IMPORT_MAX_BYTES", 10 * 1024 * 1024
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)
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PERSONAL_UPLOAD_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_PERSONAL_UPLOAD_MAX_BYTES", 25 * 1024 * 1024
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)
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EMAIL_COMPOSE_UPLOAD_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_EMAIL_COMPOSE_UPLOAD_MAX_BYTES", 25 * 1024 * 1024
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)
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STT_MAX_AUDIO_BYTES = read_byte_limit_env(
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"ODYSSEUS_STT_MAX_AUDIO_BYTES", 25 * 1024 * 1024
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)
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ICS_MAX_BYTES = read_byte_limit_env(
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"ODYSSEUS_ICS_MAX_BYTES", 10 * 1024 * 1024
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)
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async def read_upload_limited(upload: UploadFile, limit: int, label: str = "Upload") -> bytes:
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"""Read an UploadFile with a hard byte cap."""
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data = await upload.read(limit + 1)
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if len(data) > limit:
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raise HTTPException(
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status_code=413,
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detail=f"{label} exceeds {format_byte_limit(limit)} limit",
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)
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return data
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