Archived
31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
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from __future__ import annotations
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import urllib.parse
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from fastapi import HTTPException, Request
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from ..ddns_models import DdnsSettings
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MAX_FORM_FIELDS = 100
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def parse_form(body: bytes) -> dict[str, list[str]]:
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try:
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decoded = body.decode("utf-8")
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except UnicodeDecodeError as exc:
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raise HTTPException(status_code=400, detail="form body must be valid UTF-8") from exc
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try:
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return urllib.parse.parse_qs(decoded, keep_blank_values=True, max_num_fields=MAX_FORM_FIELDS)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=f"form must not contain more than {MAX_FORM_FIELDS} fields") from exc
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async def request_form(request: Request, settings: DdnsSettings) -> dict[str, list[str]]:
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body = await request.body()
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if len(body) > settings.max_request_body_bytes:
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raise HTTPException(status_code=413, detail="request body too large")
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return parse_form(body)
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def first_form_value(form: dict[str, list[str]], key: str) -> str:
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return form.get(key, [""])[0].strip()
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