Lan
139 lines
4.9 KiB
Python
139 lines
4.9 KiB
Python
from fastapi import APIRouter, Form, UploadFile, File, Depends, HTTPException
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from apps.admin.dependencies import admin_required
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from apps.base.models import FileCodes
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from apps.base.schemas import SelectFileModel
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from apps.base.utils import get_expire_info, get_file_path_name, ip_limit
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from core.response import APIResponse
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from core.settings import settings
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from core.storage import storages, FileStorageInterface
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from core.utils import get_select_token
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share_api = APIRouter(prefix='/share', tags=['分享'])
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async def validate_file_size(file: UploadFile, max_size: int):
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if file.size > max_size:
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max_size_mb = max_size / (1024 * 1024)
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raise HTTPException(status_code=403, detail=f'大小超过限制,最大为{max_size_mb:.2f} MB')
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async def create_file_code(code, **kwargs):
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return await FileCodes.create(code=code, **kwargs)
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@share_api.post('/text/', dependencies=[Depends(admin_required)])
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async def share_text(
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text: str = Form(...),
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expire_value: int = Form(default=1, gt=0),
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expire_style: str = Form(default='day'),
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ip: str = Depends(ip_limit['upload'])
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):
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text_size = len(text.encode('utf-8'))
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max_txt_size = 222 * 1024
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if text_size > max_txt_size:
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raise HTTPException(status_code=403, detail='内容过多,建议采用文件形式')
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expired_at, expired_count, used_count, code = await get_expire_info(expire_value, expire_style)
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await create_file_code(
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code=code,
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text=text,
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expired_at=expired_at,
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expired_count=expired_count,
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used_count=used_count,
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size=len(text),
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prefix='Text'
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)
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ip_limit['upload'].add_ip(ip)
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return APIResponse(detail={'code': code})
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@share_api.post('/file/', dependencies=[Depends(admin_required)])
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async def share_file(
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expire_value: int = Form(default=1, gt=0),
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expire_style: str = Form(default='day'),
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file: UploadFile = File(...),
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ip: str = Depends(ip_limit['upload'])
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):
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await validate_file_size(file, settings.uploadSize)
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if expire_style not in settings.expireStyle:
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raise HTTPException(status_code=400, detail='过期时间类型错误')
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expired_at, expired_count, used_count, code = await get_expire_info(expire_value, expire_style)
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path, suffix, prefix, uuid_file_name, save_path = await get_file_path_name(file)
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file_storage: FileStorageInterface = storages[settings.file_storage]()
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await file_storage.save_file(file, save_path)
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await create_file_code(
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code=code,
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prefix=prefix,
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suffix=suffix,
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uuid_file_name=uuid_file_name,
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file_path=path,
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size=file.size,
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expired_at=expired_at,
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expired_count=expired_count,
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used_count=used_count,
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)
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ip_limit['upload'].add_ip(ip)
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return APIResponse(detail={'code': code, 'name': file.filename})
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async def get_code_file_by_code(code, check=True):
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file_code = await FileCodes.filter(code=code).first()
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if not file_code:
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return False, '文件不存在'
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if await file_code.is_expired() and check:
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return False, '文件已过期'
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return True, file_code
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async def update_file_usage(file_code):
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file_code.used_count += 1
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if file_code.expired_count > 0:
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file_code.expired_count -= 1
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await file_code.save()
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@share_api.get('/select/')
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async def get_code_file(code: str, ip: str = Depends(ip_limit['error'])):
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file_storage: FileStorageInterface = storages[settings.file_storage]()
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has, file_code = await get_code_file_by_code(code)
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if not has:
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ip_limit['error'].add_ip(ip)
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return APIResponse(code=404, detail=file_code)
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await update_file_usage(file_code)
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return await file_storage.get_file_response(file_code)
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@share_api.post('/select/')
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async def select_file(data: SelectFileModel, ip: str = Depends(ip_limit['error'])):
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file_storage: FileStorageInterface = storages[settings.file_storage]()
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has, file_code = await get_code_file_by_code(data.code)
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if not has:
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ip_limit['error'].add_ip(ip)
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return APIResponse(code=404, detail=file_code)
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await update_file_usage(file_code)
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return APIResponse(detail={
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'code': file_code.code,
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'name': file_code.prefix + file_code.suffix,
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'size': file_code.size,
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'text': file_code.text if file_code.text is not None else await file_storage.get_file_url(file_code),
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})
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@share_api.get('/download')
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async def download_file(key: str, code: str, ip: str = Depends(ip_limit['error'])):
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file_storage: FileStorageInterface = storages[settings.file_storage]()
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if await get_select_token(code) != key:
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ip_limit['error'].add_ip(ip)
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has, file_code = await get_code_file_by_code(code, False)
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if not has:
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return APIResponse(code=404, detail='文件不存在')
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return APIResponse(detail=file_code.text) if file_code.text else await file_storage.get_file_response(file_code)
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