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97 lines
3.6 KiB
Python
97 lines
3.6 KiB
Python
import urllib.parse
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import httpx
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from flask_restx import Resource
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from pydantic import BaseModel, Field
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import services
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from controllers.common import helpers
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from controllers.common.errors import (
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FileTooLargeError,
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RemoteFileUploadError,
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UnsupportedFileTypeError,
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)
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from controllers.console import console_ns
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from core.file import helpers as file_helpers
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from core.helper import ssrf_proxy
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from extensions.ext_database import db
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from fields.file_fields import FileWithSignedUrl, RemoteFileInfo
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from libs.login import current_account_with_tenant, login_required
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from services.file_service import FileService
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class RemoteFileUploadPayload(BaseModel):
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url: str = Field(..., description="URL to fetch")
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@console_ns.route("/remote-files/<path:url>")
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class GetRemoteFileInfo(Resource):
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@login_required
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def get(self, url: str):
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decoded_url = urllib.parse.unquote(url)
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resp = ssrf_proxy.head(decoded_url)
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if resp.status_code != httpx.codes.OK:
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resp = ssrf_proxy.get(decoded_url, timeout=3)
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resp.raise_for_status()
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return RemoteFileInfo(
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file_type=resp.headers.get("Content-Type", "application/octet-stream"),
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file_length=int(resp.headers.get("Content-Length", 0)),
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).model_dump(mode="json")
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@console_ns.route("/remote-files/upload")
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class RemoteFileUpload(Resource):
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@login_required
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def post(self):
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payload = RemoteFileUploadPayload.model_validate(console_ns.payload)
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url = payload.url
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# Try to fetch remote file metadata/content first
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try:
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resp = ssrf_proxy.head(url=url)
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if resp.status_code != httpx.codes.OK:
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resp = ssrf_proxy.get(url=url, timeout=3, follow_redirects=True)
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if resp.status_code != httpx.codes.OK:
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# Normalize into a user-friendly error message expected by tests
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raise RemoteFileUploadError(f"Failed to fetch file from {url}: {resp.text}")
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except httpx.RequestError as e:
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raise RemoteFileUploadError(f"Failed to fetch file from {url}: {str(e)}")
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file_info = helpers.guess_file_info_from_response(resp)
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# Enforce file size limit with 400 (Bad Request) per tests' expectation
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if not FileService.is_file_size_within_limit(extension=file_info.extension, file_size=file_info.size):
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raise FileTooLargeError()
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# Load content if needed
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content = resp.content if resp.request.method == "GET" else ssrf_proxy.get(url).content
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try:
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user, _ = current_account_with_tenant()
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upload_file = FileService(db.engine).upload_file(
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filename=file_info.filename,
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content=content,
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mimetype=file_info.mimetype,
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user=user,
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source_url=url,
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)
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except services.errors.file.FileTooLargeError as file_too_large_error:
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raise FileTooLargeError(file_too_large_error.description)
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except services.errors.file.UnsupportedFileTypeError:
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raise UnsupportedFileTypeError()
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# Success: return created resource with 201 status
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return (
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FileWithSignedUrl(
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id=upload_file.id,
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name=upload_file.name,
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size=upload_file.size,
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extension=upload_file.extension,
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url=file_helpers.get_signed_file_url(upload_file_id=upload_file.id),
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mime_type=upload_file.mime_type,
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created_by=upload_file.created_by,
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created_at=int(upload_file.created_at.timestamp()),
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).model_dump(mode="json"),
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201,
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)
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