blog_api/routers/photomanage.py

from fastapi import FastAPI, File, UploadFile, HTTPException, Form
import paramiko
from fastapi import Depends, APIRouter, status, Query, Path, HTTPException
from internal.models import *
from internal.database import fetch_one, fetch_all, execute_query, response_success, raise_if_exists, raise_if_not_found
from dependencies import get_current_active_user
from datetime import datetime
import os
from pathlib import Path
router = APIRouter(
    prefix="/photos",
    tags=['图片管理']
)

app = FastAPI()

# 配置远程服务器信息
REMOTE_HOST = "111.229.38.129"
REMOTE_PORT = 6000  # 默认为 22
REMOTE_USERNAME = "root"
REMOTE_PASSWORD = "zl981023"
REMOTE_BASE_DIRECTORY = "/home/blog"


def file_exists(sftp, remote_file_path: str) -> bool:
    """检查远程文件是否存在"""
    try:
        sftp.stat(remote_file_path)
        return True
    except FileNotFoundError:
        return False


def ensure_remote_directory(sftp, remote_directory: str):
    """确保远程目录存在"""
    try:
        sftp.chdir(remote_directory)  # 目录存在
    except IOError:
        sftp.mkdir(remote_directory)  # 目录不存在，创建
        sftp.chdir(remote_directory)


def list_files_in_remote_directory(sftp, remote_directory):
    try:
        file_list = sftp.listdir(remote_directory)
        return file_list
    except Exception as e:
        raise HTTPException(
            status_code=500, detail=f"Could not list files in remote directory: {e}")


@router.post("/uploadfile/")
async def upload_file(file: UploadFile = File(...), album_key: str = Form(...), new_filename: str = None):
    try:
        # 获取文件扩展名
        file_extension = os.path.splitext(file.filename)[1]

        # 使用原文件名，如果没有提供新的文件名
        if not new_filename:
            new_filename = file.filename

        # 保持扩展名
        if not new_filename.endswith(file_extension):
            new_filename += file_extension

        # 根据相册的 key 生成远程文件路径
        remote_directory = Path(REMOTE_BASE_DIRECTORY) / album_key
        remote_file_path = remote_directory / new_filename
        remote_file_path = remote_file_path.as_posix()

        # 使用 Paramiko 连接远程服务器
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(REMOTE_HOST, port=REMOTE_PORT,
                    username=REMOTE_USERNAME, password=REMOTE_PASSWORD)

        sftp = ssh.open_sftp()

        # 确保远程目录存在
        ensure_remote_directory(sftp, remote_directory.as_posix())

        # 检查文件是否存在，如果存在，返回错误消息
        if file_exists(sftp, remote_file_path):
            sftp.close()
            ssh.close()
            raise HTTPException(
                status_code=400, detail="File with the given name already exists in the album.")

        # 将文件对象直接上传到远程服务器
        sftp.putfo(file.file, remote_file_path)
        sftp.close()
        ssh.close()

        return {"filename": new_filename, "message": "File uploaded successfully"}
    except Exception as e:
        raise HTTPException(
            status_code=500, detail=f"Could not upload file to remote server: {e}")


@router.get("/listfiles/")
async def list_files(album_key: str):
    try:
        remote_directory = Path(REMOTE_BASE_DIRECTORY) / album_key
        remote_directory = remote_directory.as_posix()
        
        # 使用 Paramiko 连接远程服务器
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(REMOTE_HOST, port=REMOTE_PORT, username=REMOTE_USERNAME, password=REMOTE_PASSWORD)
        
        sftp = ssh.open_sftp()
        
        # 获取远程目录中的文件列表
        file_list = list_files_in_remote_directory(sftp, remote_directory)
        
        sftp.close()
        ssh.close()
        
        # 构造文件URL列表
        file_urls = [f"{album_key}/{filename}" for filename in file_list]
        
        return {"files": file_urls}
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Could not retrieve file list: {e}")