#!/bin/bash
# ==========================================================
# 脚本名称: agent_daemon.sh (受控节点 Webhook 守护进程 - 动态锚点版)
# 核心功能: 智能防打扰注册、进程自检、模块级路由分发(403拦截)
# ==========================================================
INSTALL_DIR="/opt/ip_sentinel"
CONFIG_FILE="${INSTALL_DIR}/config.conf"
IP_CACHE="${INSTALL_DIR}/core/.last_ip"
[ ! -f "$CONFIG_FILE" ] && exit 1
source "$CONFIG_FILE"
# 如果没有配置 TG，说明未开启联控模式，直接退出
[ -z "$TG_TOKEN" ] || [ -z "$CHAT_ID" ] && exit 0
# 默认 Webhook 监听端口
AGENT_PORT=${AGENT_PORT:-9527}
# [v3.5.2 核心] 载入不可变主键与可变展示名 (双轨身份)
if [ -z "$NODE_NAME" ]; then
IP_HASH=$(echo "${PUBLIC_IP:-127.0.0.1}" | md5sum | cut -c 1-4 | tr 'a-z' 'A-Z')
NODE_NAME="$(hostname | tr -cd 'a-zA-Z0-9' | cut -c 1-10)-${IP_HASH}"
fi
NODE_ALIAS="${NODE_ALIAS:-$NODE_NAME}"
# 1. 尝试获取实时公网 IP
RAW_IP=$(curl -${IP_PREF:-4} -s -m 5 api.ip.sb/ip | tr -d '[:space:]')
# [v3.3.1 修改] 为新获取到的 v6 自动加方括号；如果网络波动没抓到，强制信任本地 config 中的公网面孔
if [ -n "$RAW_IP" ]; then
if [[ "$RAW_IP" == *":"* ]] && [[ "$RAW_IP" != *"["* ]]; then
AGENT_IP="[${RAW_IP}]"
else
AGENT_IP="$RAW_IP"
fi
else
AGENT_IP="${PUBLIC_IP:-${BIND_IP:-Unknown}}"
fi
if [ -n "$AGENT_IP" ]; then
# --- [重点升级 2: 智能防打扰注册机制] ---
LAST_IP=""
[ -f "$IP_CACHE" ] && LAST_IP=$(cat "$IP_CACHE" | tr -d '[:space:]')
# 只有当这是第一次运行，或者公网 IP 发生变动时，才发送 Telegram 申请
if [ "$AGENT_IP" != "$LAST_IP" ]; then
# [v3.5.2 核心] 携带 6 字段双轨身份发起注册申请 (展示别名，暗号尾部追加 NODE_ALIAS)
REG_MSG="👋 **[边缘节点接入申请]**%0A大区: \`${REGION_CODE}\`%0A节点: \`${NODE_ALIAS}\`%0A地址: \`${AGENT_IP}:${AGENT_PORT}\`%0A%0A⚠️ **安全验证**: 为防止非法节点接入，请长按复制下方代码，并**发送给我**以完成最终授权录入：%0A%0A\`#REGISTER#|${REGION_CODE}|${NODE_NAME}|${AGENT_IP}|${AGENT_PORT}|${NODE_ALIAS}\`"
curl -s -m 5 -X POST "${TG_API_URL}" \
-d "chat_id=${CHAT_ID}" \
-d "text=${REG_MSG}" \
-d "parse_mode=Markdown" > /dev/null
echo "✅ [Agent] 已向司令部发送接入申请，请在 Telegram 手机端完成授权！"
echo "$AGENT_IP" > "$IP_CACHE"
else
echo "ℹ️ [Agent] IP 未变动 ($AGENT_IP)，跳过重复注册申请。"
fi
fi
# 3. 启动轻量级 Python3 Webhook 监听服务 (v3.0.4 动态 HMAC 签名防重放)
cat > "${INSTALL_DIR}/core/webhook.py" << 'EOF'
import http.server
import socketserver
import subprocess
import sys
import os
import html
# ================== [v3.0.4 新增密码学与解析依赖] ==================
import urllib.parse
import urllib.request # [修复] 提升至全局作用域，防止局部变量遮蔽
import hmac
import hashlib
import time
# ====================================================================
PORT = int(sys.argv[1])
# 🛡️ 提取全局鉴权 Token (利用 CHAT_ID 作为 PSK 预共享密钥)
AUTH_TOKEN = ""
if os.path.exists('/opt/ip_sentinel/config.conf'):
with open('/opt/ip_sentinel/config.conf', 'r') as f:
for line in f:
line = line.strip()
if line.startswith('CHAT_ID='):
AUTH_TOKEN = line.split('=', 1)[1].strip('"\'')
break
class AgentHandler(http.server.BaseHTTPRequestHandler):
def do_GET(self):
# 🛡️ [v3.0.4 核心] URL 解析与动态 HMAC-SHA256 签名校验
parsed = urllib.parse.urlparse(self.path)
req_path = parsed.path
if AUTH_TOKEN:
query = urllib.parse.parse_qs(parsed.query)
req_t = query.get('t', [''])[0]
req_sign = query.get('sign', [''])[0]
# 校验 1：参数是否齐全
if not req_t or not req_sign:
self.send_response(401)
self.end_headers()
self.wfile.write(b"401 Unauthorized: Missing Signature\n")
return
try:
# 校验 2：时间戳防重放 (误差 ±60秒 内有效，拒绝隔夜抓包重放)
if abs(int(time.time()) - int(req_t)) > 60:
self.send_response(401)
self.end_headers()
self.wfile.write(b"401 Unauthorized: Request Expired\n")
return
except ValueError:
self.send_response(401)
self.end_headers()
return
# 校验 3：HMAC 数据完整性与身份合法性校验
msg = f"{req_path}:{req_t}".encode('utf-8')
expected_sign = hmac.new(AUTH_TOKEN.encode('utf-8'), msg, hashlib.sha256).hexdigest()
# 使用 compare_digest 防御时序攻击
if not hmac.compare_digest(expected_sign, req_sign):
self.send_response(401)
self.end_headers()
self.wfile.write(b"401 Unauthorized: Signature Mismatch\n")
return
# ================== 路由分发 (恢复为安全的精确匹配) ==================
# 路由 0: 全局统筹调度 (处理 /trigger_run 一键全节点维护)
if req_path == '/trigger_run':
if os.path.exists('/opt/ip_sentinel/core/runner.sh'):
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: runner\n")
subprocess.Popen(['bash', '/opt/ip_sentinel/core/runner.sh'])
else:
self.send_response(404)
self.end_headers()
# 路由 1: Google 区域纠偏
elif req_path == '/trigger_google':
if os.path.exists('/opt/ip_sentinel/core/mod_google.sh'):
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: mod_google\n")
subprocess.Popen(['bash', '/opt/ip_sentinel/core/mod_google.sh'])
else:
self.send_response(403)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"403 Forbidden: Google Module Disabled\n")
# 路由 2: IP 信用净化
elif req_path == '/trigger_trust':
if os.path.exists('/opt/ip_sentinel/core/mod_trust.sh'):
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: mod_trust\n")
subprocess.Popen(['bash', '/opt/ip_sentinel/core/mod_trust.sh'])
else:
self.send_response(403)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"403 Forbidden: Trust Module Disabled\n")
# 路由 3: 触发战报推送
elif req_path == '/trigger_report':
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: tg_report\n")
subprocess.Popen(['bash', '/opt/ip_sentinel/core/tg_report.sh'])
# 路由 4: 抓取并回传实时日志
elif req_path == '/trigger_log':
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: fetch_log\n")
try:
config = {}
if os.path.exists('/opt/ip_sentinel/config.conf'):
with open('/opt/ip_sentinel/config.conf', 'r') as f:
for line in f:
line = line.strip()
if '=' in line and not line.startswith('#'):
key, val = line.split('=', 1)
config[key] = val.strip('"\'')
log_data = "日志文件不存在或为空"
log_path = '/opt/ip_sentinel/logs/sentinel.log'
if os.path.exists(log_path):
with open(log_path, 'r', errors='ignore') as f:
lines = f.readlines()
if lines:
log_data = html.escape("".join(lines[-15:]))
# [v3.5.2 核心] 获取版本与节点展示别名
local_ver = config.get('AGENT_VERSION', '未知')
node_alias = config.get('NODE_ALIAS', config.get('NODE_NAME', 'Unknown-Node'))
text_msg = f"📄 [{node_alias}] 实时日志 (v{local_ver}):\n{log_data}
"
data = urllib.parse.urlencode({
'chat_id': config.get('CHAT_ID', ''),
'text': text_msg,
'parse_mode': 'HTML'
}).encode('utf-8')
req = urllib.request.Request(
config.get('TG_API_URL', ''),
data=data,
# [动态化] 彻底消灭硬编码，使用运行态版本号
headers={'User-Agent': f'IP-Sentinel-Agent/{local_ver}'}
)
urllib.request.urlopen(req, timeout=10)
except Exception as e:
print(f"Log transmission failed: {e}")
# 路由 5: 节点重命名展示别名同步接口 (Base64 终极防御版)
elif req_path == '/trigger_rename':
b64_alias = query.get('b64', [''])[0]
if not b64_alias:
self.send_response(400)
self.end_headers()
self.wfile.write(b"400 Bad Request: Alias is empty\n")
return
import re
import base64
try:
# 1. 还原 URL 安全的 Base64 字符并解码 (杜绝乱码与 WAF 拦截)
pad = len(b64_alias) % 4
if pad > 0:
b64_alias += '=' * (4 - pad)
b64_alias = b64_alias.replace('-', '+').replace('_', '/')
raw_alias = base64.b64decode(b64_alias).decode('utf-8', errors='ignore')
# 2. 强清洗：杜绝 TG Markdown 崩溃，严格限制中英数，最大20字符
decoded_alias = raw_alias.replace('_', '-')
safe_alias = re.sub(r'[^a-zA-Z0-9\-\u4e00-\u9fa5]', '', decoded_alias)[:20]
if safe_alias:
# 3. 强容错读写 config.conf (引入 fcntl 排他锁与 r+ 模式防并发清空)
config_path = '/opt/ip_sentinel/config.conf'
import fcntl
with open(config_path, 'r+', encoding='utf-8', errors='ignore') as f:
fcntl.flock(f, fcntl.LOCK_EX)
lines = f.readlines()
alias_found = False
for i, line in enumerate(lines):
if line.startswith('NODE_ALIAS='):
lines[i] = f'NODE_ALIAS="{safe_alias}"\n'
alias_found = True
break
if not alias_found:
lines.append(f'NODE_ALIAS="{safe_alias}"\n')
f.seek(0)
f.writelines(lines)
f.truncate()
fcntl.flock(f, fcntl.LOCK_UN)
# [v3.5.2 极致丝滑] 移除向 TG 推送冗余报文的逻辑，直接向 Master 回执成功状态即可
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: trigger_rename\n")
return
except Exception as e:
self.send_response(500)
self.end_headers()
self.wfile.write(f"500 Internal Error: {str(e)}\n".encode('utf-8'))
return
self.send_response(400)
self.end_headers()
self.wfile.write(b"400 Bad Request: Invalid Characters\n")
# ================== [v3.5.3 新增: 模块动态启停接口] ==================
elif req_path == '/trigger_toggle':
mod_name = query.get('mod', [''])[0]
target_state = query.get('state', [''])[0].lower()
if mod_name not in ['google', 'trust'] or target_state not in ['true', 'false']:
self.send_response(400)
self.end_headers()
self.wfile.write(b"400 Bad Request: Invalid parameters\n")
return
config_key = f"ENABLE_{mod_name.upper()}="
try:
config_path = '/opt/ip_sentinel/config.conf'
import fcntl
with open(config_path, 'r+', encoding='utf-8', errors='ignore') as f:
fcntl.flock(f, fcntl.LOCK_EX)
lines = f.readlines()
found = False
for i, line in enumerate(lines):
if line.startswith(config_key):
lines[i] = f'{config_key}"{target_state}"\n'
found = True
break
if not found:
lines.append(f'{config_key}"{target_state}"\n')
f.seek(0)
f.writelines(lines)
f.truncate()
fcntl.flock(f, fcntl.LOCK_UN)
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: trigger_toggle\n")
except Exception as e:
self.send_response(500)
self.end_headers()
self.wfile.write(f"500 Internal Error: {str(e)}\n".encode('utf-8'))
# ================== [v3.6.0 新增: 零信任 OTA 远程静默升级路由] ==================
elif req_path == '/trigger_ota':
try:
# 动态读取最新 config 内存态
config_mem = {}
config_path = '/opt/ip_sentinel/config.conf'
if os.path.exists(config_path):
with open(config_path, 'r', errors='ignore') as f:
for line in f:
line = line.strip()
if '=' in line and not line.startswith('#'):
key, val = line.split('=', 1)
config_mem[key] = val.strip('"\'')
# 🛡️ 熔断校验 1: Agent 本地是否开启了 OTA 授权
if config_mem.get('ENABLE_OTA', 'false').lower() != 'true':
self.send_response(403)
self.end_headers()
self.wfile.write(b"403 Forbidden: OTA Upgrade Disabled locally\n")
return
# 🛡️ 熔断校验 2: 是否处于官方公共网关下 (强行硬编码拦截)
if config_mem.get('TG_TOKEN', '') == 'OFFICIAL_GATEWAY_MODE':
self.send_response(403)
self.end_headers()
self.wfile.write(b"403 Forbidden: OTA strictly disabled under Public Gateway mode\n")
return
# 校验通过，立即返回 200 回执，释放 Master 连接池
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write(b"Action Accepted: trigger_ota\n")
# [修复] 逃逸 Systemd Cgroup，并引入 bash -n 语法树校验防砖机制
import shutil
repo_url = "https://raw.githubusercontent.com/hotyue/IP-Sentinel/v3.6.3-dev"
# [v3.6.3 修复] 🚀 下载后先执行 if bash -n 语法校验，通过后再执行覆盖
ota_cmd = f"export SILENT_OTA='true'; curl -fsSL {repo_url}/core/install.sh -o /tmp/ota_agent.sh && if bash -n /tmp/ota_agent.sh; then bash /tmp/ota_agent.sh > /opt/ip_sentinel/logs/ota_upgrade.log 2>&1; else echo 'OTA Checksum Failed: Script corrupted' > /opt/ip_sentinel/logs/ota_upgrade.log; fi"
if shutil.which("systemd-run"):
full_cmd = f"systemd-run --quiet --no-block bash -c \"{ota_cmd}\""
else:
full_cmd = f"nohup bash -c \"{ota_cmd}\" &"
subprocess.Popen(full_cmd, shell=True)
except Exception as e:
self.send_response(500)
self.end_headers()
self.wfile.write(f"500 Internal Error: {str(e)}\n".encode('utf-8'))
else:
self.send_response(404)
self.end_headers()
def log_message(self, format, *args):
pass
import socket
# ================== [v3.0.3 变更: 引入多线程模型抵抗 Slowloris 攻击] ==================
class ThreadedServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
allow_reuse_address = True # 开启端口复用，防止热重启时端口冲突
try:
# 1. 优先尝试监听双栈/IPv6 (大多数 Linux 默认支持 IPv4 映射接入)
ThreadedServer.address_family = socket.AF_INET6
httpd = ThreadedServer(("::", PORT), AgentHandler)
except Exception:
# 2. [核心修复 Issue #23] 若系统内核已禁用 IPv6，抛弃报错，智能回退至纯 IPv4 监听
ThreadedServer.address_family = socket.AF_INET
httpd = ThreadedServer(("0.0.0.0", PORT), AgentHandler)
try:
httpd.serve_forever()
except Exception as e:
sys.exit(1)
# ====================================================================================
EOF
# --- [重点升级 3: 移交系统级守护进程接管 (阻塞模式)] ---
echo "🚀 [Agent] 正在启动 Webhook 监听服务 (端口: $AGENT_PORT)..."
exec python3 "${INSTALL_DIR}/core/webhook.py" "$AGENT_PORT"