#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# 脚本名称: python_cgi_index.py

# 　　版本: 1.0.0

# 　　作者: FNOSP/xieguanru

# 　协作者: FNOSP/MR_XIAOBO

# 创建日期: 2025-11-19

# 最后修改: 2025-11-19

# 　　描述: 这个脚本用于演示python脚本的各种注释方式

# 使用方式: 文件重命名，从python_cgi_index.py改成index.cgi

# 　　　　 放置应用包/ui路径下，记得 chmod +x index.cgi 赋权

# 　许可证: MIT

import os

import sys

import urllib.parse

import mimetypes

# 你自己的静态文件根目录

BASE_PATH = "/var/apps/aria2/target/ui"

# ----------------------------------------------------

# 1. 从 REQUEST_URI 里拿到 index.cgi 后面的路径

# ----------------------------------------------------

REQUEST_URI = os.environ.get("REQUEST_URI", "")

# 去掉 query string

URI_NO_QUERY = REQUEST_URI.split("?", 1)[0]

# 默认 REL_PATH

REL_PATH = "/"

# 找到 index.cgi 并切掉前面

if "index.cgi" in URI_NO_QUERY:

# /xxx/index.cgi/index.html → /index.html

REL_PATH = URI_NO_QUERY.split("index.cgi", 1)[1]

# 如果为空或只有 /，就访问 index.html

if REL_PATH == "" or REL_PATH == "/":

REL_PATH = "/index.html"

# 拼出真实文件路径

TARGET_FILE = BASE_PATH + REL_PATH

# ----------------------------------------------------

# 简单防御：禁止 .. 越级访问

# ----------------------------------------------------

if ".." in TARGET_FILE:

print("Status: 400 Bad Request")

print("Content-Type: text/plain; charset=utf-8")

print("")

print("Bad Request")

sys.exit(0)

# ----------------------------------------------------

# 2. 判断文件是否存在

# ----------------------------------------------------

if not os.path.isfile(TARGET_FILE):

print("Status: 404 Not Found")

print("Content-Type: text/plain; charset=utf-8")

print("")

print(f"404 Not Found: {REL_PATH}")

sys.exit(0)

# ----------------------------------------------------

# 3. 根据扩展名判断 MIME

# ----------------------------------------------------

ext = TARGET_FILE.split(".")[-1].lower()

mime_map = {

"html": "text/html; charset=utf-8",

"htm": "text/html; charset=utf-8",

"css": "text/css; charset=utf-8",

"js": "application/javascript; charset=utf-8",

"jpg": "image/jpeg",

"jpeg": "image/jpeg",

"png": "image/png",

"gif": "image/gif",

"svg": "image/svg+xml",

"txt": "text/plain; charset=utf-8",

"log": "text/plain; charset=utf-8",

}

mime = mime_map.get(ext, "application/octet-stream")

# ----------------------------------------------------

# 4. 输出头 + 文件内容（二进制）

# ----------------------------------------------------

print(f"Content-Type: {mime}")

print("")

with open(TARGET_FILE, "rb") as f:

sys.stdout.buffer.write(f.read())