Initial commit: Captcha Service v1.0.0
This commit is contained in:
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from flask import Flask, request, jsonify
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import secrets
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import string
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import time
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import requests
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import hashlib
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app = Flask(__name__)
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# ==================== 配置 ====================
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VERIFY_CODE_EXPIRE_SECONDS = 120 # 验证码过期时间（秒）
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RATE_LIMIT_SECONDS = 60 # 申请间隔限制（秒）
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TOKEN_EXPIRE_SECONDS = 300 # token过期时间（秒）
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# ==================== AID ====================
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AID = "填写"
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# ==================== 存储 ====================
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COOKIE_STORE = {} # {cookie: {'cudid': xxx, 'ip': xxx, 'created_at': timestamp}}
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CODE_STORE = {} # {cookie: {'code': xxx, 'expire_at': timestamp, 'last_request': timestamp}}
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TOKEN_STORE = {} # {token: {'cookie': xxx, 'cudid': xxx, 'expire_at': timestamp, 'used': False, 'code': xxx}}
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REQUEST_RECORD = {} # {key: timestamp} key可以是cookie或ip
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# ==================== 工具函数 ====================
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def generate_cookie():
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"""生成高熵Cookie"""
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return secrets.token_hex(64) + secrets.token_hex(32)
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def generate_verify_code():
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"""生成10位高熵动态验证密码"""
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chars = string.ascii_letters + string.digits + "!@#$%^&*()_+-=[]{}|;:,.<>?"
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return ''.join(secrets.choice(chars) for _ in range(10))
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def generate_token():
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"""生成32位一次性token"""
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return secrets.token_hex(32)
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def build_verify_email_html(code):
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"""构建验证码邮件HTML"""
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return f"""
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<!DOCTYPE html>
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<html>
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<head><meta charset="UTF-8"></head>
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<body style="margin:0;padding:0;background:#f0f2f3;">
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<table cellspacing="0" cellpadding="0" width="100%" align="center" style="max-width:600px;margin:0 auto;background:#fff;font-family:Arial;font-size:14px;color:#444;border-bottom:1px solid #d6d6d6;">
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<tr>
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<td style="padding:25px 35px;">
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<h1 style="font-size:20px;font-weight:bold;margin:0 0 15px;">验证您的电子邮件地址。</h1>
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<p style="margin:0 0 15px;">感谢您注册我们的账户。为确保当前是您本人操作，请您输入此邮件中提示的验证码以完成账户注册。如您没有注册账户，请放心忽略该信息。</p>
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</td>
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</tr>
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<tr>
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<td style="padding:0 35px 25px;text-align:center;">
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<div style="font-weight:bold;padding-bottom:15px;color:#444;">DVSWebSVC-动态验证密码</div>
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<div style="color:#000;font-size:36px;font-weight:bold;padding-bottom:15px;letter-spacing:4px;">{code}</div>
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<div style="color:#666;font-size:13px;">(此验证码将在发送后 {VERIFY_CODE_EXPIRE_SECONDS} 秒过期。)</div>
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</td>
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</tr>
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</table>
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</body>
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</html>
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"""
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def send_email_via_local(to_email, html_content):
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"""调用本地:5000/send 发送邮件"""
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try:
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login_resp = requests.post(
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"http://localhost:5000/login",
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json={
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"aid": AID,
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"username": "dvsadmin",
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"password": "G7#kLp$QwZ@2xR&yM9!nVb*C5^jHf%T"
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},
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timeout=10
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)
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if login_resp.status_code != 200:
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return False, "登录本地邮件服务失败"
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result = login_resp.json()
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if result.get('code') != 200:
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return False, f"登录失败: {result.get('message')}"
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cookie = result.get('cookie')
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if not cookie:
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return False, "获取邮件服务cookie失败"
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send_resp = requests.post(
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"http://localhost:5000/send",
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json={
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"cookie": cookie,
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"to": to_email,
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"subject": "【DVSWebSVC】验证您的电子邮件地址",
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"content": html_content
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},
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timeout=30
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)
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if send_resp.status_code == 200:
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result = send_resp.json()
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if result.get('code') == 200:
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return True, "邮件发送成功"
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else:
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return False, result.get('message', '邮件发送失败')
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else:
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return False, f"邮件服务返回错误: {send_resp.status_code}"
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except requests.exceptions.Timeout:
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return False, "调用邮件服务超时"
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except requests.exceptions.ConnectionError:
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return False, "无法连接到邮件服务 (localhost:5000)"
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except Exception as e:
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return False, f"调用邮件服务异常: {str(e)}"
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# ==================== API 接口 ====================
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@app.route('/apply', methods=['POST'])
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def apply_cookie():
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"""
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申请Cookie（只需CUDID）
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请求体: {"cudid": "256位设备唯一标识符"}
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返回: {"code": 200, "cookie": "xxx", "message": "申请成功"}
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"""
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try:
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data = request.get_json() or {}
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cudid = data.get('cudid')
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# 验证CUDID
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if not cudid:
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return jsonify({"code": 400, "message": "缺少 cudid"}), 400
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# 验证CUDID是否为256位哈希（64位十六进制字符）
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if len(cudid) != 64:
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return jsonify({"code": 400, "message": "cudid 必须是64位十六进制字符串（256位）"}), 400
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try:
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int(cudid, 16) # 验证是否为十六进制
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except ValueError:
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return jsonify({"code": 400, "message": "cudid 必须是有效的十六进制字符串"}), 400
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# 生成永久Cookie
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cookie = generate_cookie()
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# 存储cookie信息
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COOKIE_STORE[cookie] = {
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'cudid': cudid,
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'ip': request.remote_addr,
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'created_at': time.time()
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}
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return jsonify({
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"code": 200,
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"message": "申请成功",
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"cookie": cookie
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})
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except Exception as e:
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return jsonify({"code": 500, "message": f"服务器错误: {str(e)}"}), 500
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@app.route('/request_code', methods=['POST'])
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def request_verify_code():
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"""
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申请验证码
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请求体: {"cookie": "xxx", "cudid": "256位设备标识符", "to": "收件邮箱"}
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返回: {"code": 200, "token": "xxx", "message": "验证码已发送"}
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"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({"code": 400, "message": "请求体不能为空"}), 400
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cookie = data.get('cookie')
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cudid = data.get('cudid')
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to_email = data.get('to')
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# 参数校验
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if not cookie:
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return jsonify({"code": 400, "message": "缺少 cookie"}), 400
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if not cudid:
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return jsonify({"code": 400, "message": "缺少 cudid"}), 400
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if not to_email:
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return jsonify({"code": 400, "message": "缺少 to"}), 400
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# 验证CUDID格式
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if len(cudid) != 64:
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return jsonify({"code": 400, "message": "cudid 必须是64位十六进制字符串（256位）"}), 400
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try:
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int(cudid, 16)
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except ValueError:
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return jsonify({"code": 400, "message": "cudid 必须是有效的十六进制字符串"}), 400
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# 验证Cookie是否存在
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if cookie not in COOKIE_STORE:
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return jsonify({"code": 401, "message": "Cookie无效，请重新申请"}), 401
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# 验证CUDID是否匹配
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stored = COOKIE_STORE[cookie]
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if stored.get('cudid') != cudid:
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return jsonify({"code": 401, "message": "CUDID不匹配"}), 401
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# 限流检查（IP或Cookie任一限制）
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ip = request.remote_addr
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now = time.time()
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# 检查IP限制
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if ip in REQUEST_RECORD:
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if now - REQUEST_RECORD[ip] < RATE_LIMIT_SECONDS:
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wait = int(RATE_LIMIT_SECONDS - (now - REQUEST_RECORD[ip]))
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return jsonify({"code": 429, "message": f"IP限制，请等待 {wait} 秒"}), 429
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# 检查Cookie限制
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if cookie in REQUEST_RECORD:
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if now - REQUEST_RECORD[cookie] < RATE_LIMIT_SECONDS:
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wait = int(RATE_LIMIT_SECONDS - (now - REQUEST_RECORD[cookie]))
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return jsonify({"code": 429, "message": f"Cookie限制，请等待 {wait} 秒"}), 429
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# 生成验证码
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code = generate_verify_code()
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# 构建HTML邮件
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html_content = build_verify_email_html(code)
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# 发送邮件
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success, msg = send_email_via_local(to_email, html_content)
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if not success:
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return jsonify({"code": 500, "message": f"发送失败: {msg}"}), 500
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# 记录申请时间（IP和Cookie都记录）
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REQUEST_RECORD[ip] = now
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REQUEST_RECORD[cookie] = now
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# 存储验证码
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CODE_STORE[cookie] = {
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'code': code,
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'expire_at': now + VERIFY_CODE_EXPIRE_SECONDS,
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'last_request': now
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}
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# 生成一次性token
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token = generate_token()
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TOKEN_STORE[token] = {
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'cookie': cookie,
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'cudid': cudid,
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'code': code,
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'expire_at': now + TOKEN_EXPIRE_SECONDS,
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'used': False
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}
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return jsonify({
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"code": 200,
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"message": "验证码已发送",
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"token": token
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})
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except Exception as e:
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return jsonify({"code": 500, "message": f"服务器错误: {str(e)}"}), 500
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@app.route('/verify', methods=['POST'])
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def verify_code():
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"""
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验证验证码
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请求体: {"token": "xxx", "code": "用户输入的验证码"}
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返回: {"code": 200, "message": "验证成功"}
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"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({"code": 400, "message": "请求体不能为空"}), 400
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token = data.get('token')
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user_code = data.get('code')
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if not token:
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return jsonify({"code": 400, "message": "缺少 token"}), 400
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if not user_code:
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return jsonify({"code": 400, "message": "缺少 code"}), 400
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# 验证token是否存在
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if token not in TOKEN_STORE:
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return jsonify({"code": 401, "message": "Token无效"}), 401
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token_data = TOKEN_STORE[token]
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# 检查是否已使用
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if token_data.get('used'):
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return jsonify({"code": 401, "message": "Token已使用"}), 401
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# 检查是否过期
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if time.time() > token_data.get('expire_at', 0):
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TOKEN_STORE[token]['used'] = True
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return jsonify({"code": 401, "message": "Token已过期"}), 401
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# 验证验证码
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stored_code = token_data.get('code')
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if user_code != stored_code:
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return jsonify({"code": 401, "message": "验证码错误"}), 401
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# 验证成功，标记token已使用
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TOKEN_STORE[token]['used'] = True
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return jsonify({
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"code": 200,
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"message": "验证成功"
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})
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except Exception as e:
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return jsonify({"code": 500, "message": f"服务器错误: {str(e)}"}), 500
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@app.route('/check_token', methods=['POST'])
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def check_token():
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"""
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检查token状态
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请求体: {"token": "xxx"}
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返回: {"code": 200, "valid": true/false, "used": true/false, "expired": true/false}
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"""
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try:
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data = request.get_json() or {}
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token = data.get('token')
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if not token:
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return jsonify({"code": 400, "message": "缺少 token"}), 400
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if token not in TOKEN_STORE:
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return jsonify({"code": 200, "valid": False, "message": "Token不存在"})
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token_data = TOKEN_STORE[token]
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is_expired = time.time() > token_data.get('expire_at', 0)
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is_used = token_data.get('used', False)
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return jsonify({
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"code": 200,
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"valid": not is_expired and not is_used,
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"used": is_used,
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"expired": is_expired
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})
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except Exception as e:
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return jsonify({"code": 500, "message": f"服务器错误: {str(e)}"}), 500
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@app.route('/health', methods=['GET'])
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def health():
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"""健康检查"""
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return jsonify({
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"code": 200,
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"message": "服务运行正常",
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"stats": {
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"cookies": len(COOKIE_STORE),
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"codes": len(CODE_STORE),
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"tokens": len(TOKEN_STORE),
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"records": len(REQUEST_RECORD)
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}
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})
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if __name__ == '__main__':
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print("=" * 60)
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print("DVSWebSVC 验证码服务")
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print("=" * 60)
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print(f"验证码有效期: {VERIFY_CODE_EXPIRE_SECONDS} 秒")
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print(f"限流间隔: {RATE_LIMIT_SECONDS} 秒")
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print(f"Token有效期: {TOKEN_EXPIRE_SECONDS} 秒")
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print("=" * 60)
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print("\n📍 申请Cookie: POST /apply")
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print(" 请求: {\"cudid\": \"64位十六进制（256位）\"}")
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print(" 返回: {\"code\": 200, \"cookie\": \"xxx\"}")
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print("\n📍 申请验证码: POST /request_code")
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print(" 请求: {\"cookie\": \"xxx\", \"cudid\": \"xxx\", \"to\": \"邮箱\"}")
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print(" 返回: {\"code\": 200, \"token\": \"xxx\"}")
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print("\n📍 验证验证码: POST /verify")
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print(" 请求: {\"token\": \"xxx\", \"code\": \"验证码\"}")
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print(" 返回: {\"code\": 200, \"message\": \"验证成功\"}")
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print("\n📍 检查Token: POST /check_token")
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print(" 请求: {\"token\": \"xxx\"}")
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print("📍 健康检查: GET /health")
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print("=" * 60)
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app.run(host='0.0.0.0', port=888, debug=True)
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