69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
from __future__ import annotations
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import hashlib
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from io import BytesIO
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from app.database.lazer_user import User
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from app.dependencies.database import Database
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from app.dependencies.storage import get_storage_service
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from app.dependencies.user import get_client_user
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from app.storage.base import StorageService
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from .router import router
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from fastapi import Depends, File, HTTPException, Security
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from PIL import Image
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@router.post(
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"/avatar/upload",
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name="上传头像",
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)
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async def upload_avatar(
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session: Database,
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content: bytes = File(...),
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current_user: User = Security(get_client_user),
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storage: StorageService = Depends(get_storage_service),
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):
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"""上传用户头像
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接收图片数据，验证图片格式和大小后存储到存储服务，并更新用户的头像 URL
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限制条件:
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- 支持的图片格式: PNG、JPEG、GIF
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- 最大文件大小: 5MB
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- 最大图片尺寸: 256x256 像素
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返回:
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- 头像 URL 和文件哈希值
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"""
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# check file
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if len(content) > 5 * 1024 * 1024: # 5MB limit
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raise HTTPException(status_code=400, detail="File size exceeds 5MB limit")
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elif len(content) == 0:
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raise HTTPException(status_code=400, detail="File cannot be empty")
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try:
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with Image.open(BytesIO(content)) as img:
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if img.format not in ["PNG", "JPEG", "GIF"]:
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raise HTTPException(status_code=400, detail="Invalid image format")
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if img.size[0] > 256 or img.size[1] > 256:
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raise HTTPException(
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status_code=400, detail="Image size exceeds 256x256 pixels"
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)
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except Exception as e:
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raise HTTPException(status_code=400, detail=f"Error processing image: {e}")
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filehash = hashlib.sha256(content).hexdigest()
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storage_path = f"avatars/{current_user.id}_{filehash}.png"
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if not await storage.is_exists(storage_path):
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await storage.write_file(storage_path, content)
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url = await storage.get_file_url(storage_path)
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current_user.avatar_url = url
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await session.commit()
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return {
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"url": url,
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"filehash": filehash,
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}
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