修复CDN错误的问题

新增数据库检查

.env.example

@@ -1,10 +1,19 @@
+# PromdataPanel Environment Configuration
+# Note: Database and Cache settings will be automatically configured upon visiting /init.html
+
+# Server Binding
 HOST=0.0.0.0
 PORT=3000
+
+# Aggregation interval in milliseconds (default 5s)
 REFRESH_INTERVAL=5000
 
-# Valkey/Redis Cache Configuration
-VALKEY_HOST=localhost
-VALKEY_PORT=6379
-VALKEY_PASSWORD=
-VALKEY_DB=dashboard
-VALKEY_TTL=30
+# Security
+# Keep remote setup disabled unless you explicitly need to initialize from another host.
+ALLOW_REMOTE_SETUP=false
+COOKIE_SECURE=false
+SESSION_TTL_SECONDS=86400
+PASSWORD_ITERATIONS=210000
+
+# Runtime external data providers
+ENABLE_EXTERNAL_GEO_LOOKUP=false

README.md

@@ -1,92 +1,119 @@
-# 数据可视化展示大屏
+# PromdataPanel
 
-多源 Prometheus 服务器监控展示大屏，支持对接多个 Prometheus 实例，实时展示所有服务器的 CPU、内存、磁盘、网络等关键指标。
+多源 Prometheus 服务器监控展示大屏。支持对接多个 Prometheus 实例，实时聚合展示所有服务器的 CPU、内存、磁盘、带宽等关键指标，并提供可视化节点分布图。
 
 ## 功能特性
 
-- 🔌 **多数据源管理** - MySQL 存储配置，支持对接多个 Prometheus 实例
-- 📊 **NodeExporter 数据查询** - 自动聚合所有 Prometheus 中的 NodeExporter 数据
-- 🌐 **网络流量统计** - 24 小时网络流量趋势图，总流量统计
-- ⚡ **实时带宽监控** - 所有服务器网络带宽求和，实时显示
-- 💻 **资源使用概览** - CPU、内存、磁盘的总使用率和详细统计
-- 🖥️ **服务器列表** - 所有服务器的详细指标一览表
+- 🔌 **多数据源管理** - 支持对接多个 Prometheus 实例（Node_Exporter / BlackboxExporter）
+- 📊 **指标自动聚合** - 自动汇总所有数据源的 NodeExporter 指标，实时计算全网负载
+- 🌐 **网络流量统计** - 24 小时流量趋势图，实时带宽（Rx/Tx）求和显示
+- 🗺️ **节点分布可视化** - 自动识别服务器地理位置，并在全球地图上展示实时连接状态与延迟
+- ⚡ **毫秒级实时性** - 深度优化查询逻辑，支持 5s 采集频率的实时动态展示
+- 📱 **响应式与美学设计** - 现代 UI/UX 体验，支持暗色模式，极致性能优化
 
-## 快速开始
+## 快速安装
 
-### 1. 环境要求
+### 方式一：一键脚本安装 (推荐)
 
-- Node.js >= 16
-- MySQL >= 5.7
-
-### 2. 配置
-
-复制环境变量文件并修改：
+在 Linux 服务器上，您可以使用以下脚本一键完成下载、环境检测、依赖安装并将其注册为 Systemd 系统服务：
 
 ```bash
-cp .env.example .env
+# 下载安装最新版本 (默认 v0.1.0)
+VERSION=v0.1.0 curl -sSL https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/raw/branch/main/install.sh | bash
 ```
 
-编辑 `.env` 文件，配置 MySQL 连接信息：
+### 方式二：手动安装
 
-```env
-MYSQL_HOST=localhost
-MYSQL_PORT=3306
-MYSQL_USER=root
-MYSQL_PASSWORD=your_password
-MYSQL_DATABASE=display_wall
-PORT=3000
-```
+#### 1. 环境要求
+- **Node.js** >= 18
+- **MySQL** >= 8.0
+- **Valkey** >= 7.0 (或 Redis >= 6.0)
 
-### 3. 初始化数据库
+#### 2. 配置与启动
+1. 克隆代码库：`git clone https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel.git`
+2. 复制配置文件：`cp .env.example .env`
+3. 安装依赖：`npm install --production`
+4. 启动服务：`npm start`
+
+### 方式三：更新现有版本
+
+如果您已经安装了本系统，可以使用随附的 `update.sh` 脚本一键升级到最新代码：
 
 ```bash
-npm run init-db
+# 进入程序目录
+curl -sSL https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/raw/branch/main/update.sh | bash
 ```
 
-### 4. 安装依赖并启动
+#### 3. 系统初始化
+首次运行后，访问 `http://your-ip:3000/init.html`，按照引导完成 MySQL 数据库和 Valkey 缓存的连接。
 
-```bash
-npm install
-npm run dev
-```
+## 使用指引
 
-访问 `http://localhost:3000` 即可看到展示大屏。
+### 1. 添加 Prometheus 数据源
+点击页面右上角的 ⚙️ 按钮进入设置，添加并测试您的 Prometheus HTTP 地址。
 
-### 5. 配置 Prometheus 数据源
-
-点击右上角的 ⚙️ 按钮，添加你的 Prometheus 地址（如 `http://prometheus.example.com:9090`）。
-
-### 6. Prometheus 配置参考 (Example)
-
-在您的 Prometheus 配置文件 `prometheus.yml` 中，建议执行以下配置（`scrape_interval` 建议设为 `5s` 以获取最佳实时展示效果）：
+### 2. Prometheus 采集配置
+建议在 `prometheus.yml` 中设置采集周期为 `5s` 以实现平滑的实时动态效果：
 
 ```yaml
 global:
   scrape_interval: 5s
-scrape_configs:
-  - job_name: '机器名称'
-    static_configs:
-      - targets: ['IP:Port']
-```
 
+scrape_configs:
+  - job_name: 'nodes'
+    static_configs:
+      - targets: ['your-server-ip:9100']
+```
 
 ## 技术栈
 
-- **后端**: Node.js + Express
-- **数据库**: MySQL (mysql2)
-- **数据源**: Prometheus HTTP API
-- **前端**: 原生 HTML/CSS/JavaScript
-- **图表**: 自定义 Canvas 渲染
+- **Runtime**: Node.js
+- **Framework**: Express.js
+- **Database**: MySQL 8.0+
+- **Caching**: Valkey / Redis
+- **Visualization**: ECharts / Canvas
+- **Frontend**: Vanilla JS / CSS3
 
-## API 接口
+## API 接口文档
 
-| 方法 | 路径 | 说明 |
-|------|------|------|
-| GET | `/api/sources` | 获取所有数据源 |
-| POST | `/api/sources` | 添加数据源 |
-| PUT | `/api/sources/:id` | 更新数据源 |
-| DELETE | `/api/sources/:id` | 删除数据源 |
-| POST | `/api/sources/test` | 测试数据源连接 |
-| GET | `/api/metrics/overview` | 获取聚合指标概览 |
-| GET | `/api/metrics/network-history` | 获取24h网络流量历史 |
-| GET | `/api/metrics/cpu-history` | 获取CPU使用率历史 |
+本项提供了完整的 RESTful API，用于数据采集、系统配置和状态监控。
+
+### 1. 认证接口 (`/api/auth`)
+- `POST /api/auth/login`: 用户登录
+- `POST /api/auth/logout`: 退出登录
+- `POST /api/auth/change-password`: 修改密码 (需登录)
+- `GET /api/auth/status`: 获取当前登录状态
+
+### 2. 数据源管理 (`/api/sources`)
+- `GET /api/sources`: 获取所有 Prometheus 数据源及其状态
+- `POST /api/sources`: 添加新数据源 (需登录)
+- `PUT /api/sources/:id`: 修改数据源信息 (需登录)
+- `DELETE /api/sources/:id`: 删除数据源 (需登录)
+- `POST /api/sources/test`: 测试数据源连接性 (需登录)
+
+### 3. 指标数据获取 (`/api/metrics`)
+- `GET /api/metrics/overview`: 获取所有服务器的聚合实时指标 (CPU, 内存, 磁盘, 网络)
+- `GET /api/metrics/network-history`: 获取全网 24 小时流量历史趋势
+- `GET /api/metrics/cpu-history`: 获取全网 CPU 使用率历史记录
+- `GET /api/metrics/server-details`: 获取特定服务器的详细实时指标
+- `GET /api/metrics/server-history`: 获取特定服务器的历史指标数据
+- `GET /api/metrics/latency`: 获取节点间的实时延迟数据
+
+### 4. 系统配置与监控
+- `GET /api/settings`: 获取站点全局配置
+- `POST /api/settings`: 修改站点全局配置 (需登录)
+- `GET /health`: 获取系统健康检查报告 (数据库、缓存、内存等状态)
+
+### 5. 延迟链路管理 (`/api/latency-routes`)
+- `GET /api/latency-routes`: 获取配置的所有延迟检测链路
+- `POST /api/latency-routes`: 添加延迟检测链路 (需登录)
+- `PUT /api/latency-routes/:id`: 修改延迟检测链路 (需登录)
+- `DELETE /api/latency-routes/:id`: 删除延迟检测链路 (需登录)
+
+### 6. 实时通信 (WebSocket)
+系统支持通过 WebSocket 接收实时推送，默认端口与 HTTP 服务一致：
+- **消息类型 `overview`**: 包含聚合指标、服务器在线状态以及地理分布后的延迟链路数据。
+
+## LICENSE
+
+MIT License

install.sh

@@ -1,124 +1,262 @@
 #!/bin/bash
 
-# Data Visualization Display Wall - Systemd Installer
-# Requirements: Node.js, NPM, Systemd (Linux)
+set -euo pipefail
 
-# Colors for output
 RED='\033[0;31m'
 GREEN='\033[0;32m'
 YELLOW='\033[1;33m'
 BLUE='\033[0;34m'
-NC='\033[0m' # No Color
+NC='\033[0m'
 
-echo -e "${BLUE}=== Data Visualization Display Wall Installer ===${NC}"
+VERSION=${VERSION:-"v0.1.0"}
+DOWNLOAD_URL="https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/archive/${VERSION}.zip"
+MIN_NODE_VERSION=18
+SERVICE_NAME="promdatapanel"
+SERVICE_FILE="/etc/systemd/system/${SERVICE_NAME}.service"
 
-# 1. Check permissions
-if [ "$EUID" -ne 0 ]; then
-  echo -e "${RED}Please run as root (sudo ./Install.sh)${NC}"
+OS_ID=""
+OS_VER=""
+PROJECT_DIR=""
+REAL_USER=""
+
+echo -e "${BLUE}================================================${NC}"
+echo -e "${BLUE}          PromdataPanel Auto-Installer          ${NC}"
+echo -e "${BLUE}             Version: ${VERSION}                ${NC}"
+echo -e "${BLUE}================================================${NC}"
+
+detect_os() {
+    if [ -f /etc/os-release ]; then
+        # shellcheck disable=SC1091
+        . /etc/os-release
+        OS_ID="${ID:-}"
+        OS_VER="${VERSION_ID:-}"
+    else
+        echo -e "${RED}Error: Cannot detect operating system type (/etc/os-release missing).${NC}"
         exit 1
-fi
+    fi
 
-# 2. Get current directory and user
-PROJECT_DIR=$(pwd)
-REAL_USER=${SUDO_USER:-$USER}
-USER_HOME=$(getent passwd "$REAL_USER" | cut -d: -f6)
-
-echo -e "Project Directory: ${GREEN}$PROJECT_DIR${NC}"
-echo -e "Running User:      ${GREEN}$REAL_USER${NC}"
-
-# 3. Check for mandatory files
-if [ ! -f "server/index.js" ]; then
-    echo -e "${RED}Error: server/index.js not found. Please run this script from the project root.${NC}"
+    if [ -z "$OS_ID" ]; then
+        echo -e "${RED}Error: Unable to determine operating system ID.${NC}"
         exit 1
-fi
+    fi
 
-# 4. Check for dependencies
-echo -e "${BLUE}Checking dependencies...${NC}"
-check_dep() {
-    if ! command -v "$1" &> /dev/null; then
-        echo -e "${RED}$1 is not installed. Please install $1 first.${NC}"
+    echo -e "Detected OS: ${GREEN}${OS_ID} ${OS_VER}${NC}"
+}
+
+require_cmd() {
+    local cmd="$1"
+    local hint="${2:-}"
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo -e "${RED}Missing required command: ${cmd}.${NC}"
+        if [ -n "$hint" ]; then
+            echo -e "${YELLOW}${hint}${NC}"
+        fi
         exit 1
     fi
 }
-check_dep node
-check_dep npm
 
-# 5. Check for .env file
-if [ ! -f ".env" ]; then
-    echo -e "${YELLOW}Warning: .env file not found.${NC}"
-    if [ -f ".env.example" ]; then
-        echo -e "Creating .env from .env.example..."
-        cp .env.example .env
-        chown "$REAL_USER":"$REAL_USER" .env
-        echo -e "${GREEN}Created .env file. Please ensure values are correct.${NC}"
-    else
-        echo -e "${RED}Error: .env.example not found. Configuration missing.${NC}"
-    fi
-fi
-
-# 6. Install NPM dependencies
-echo -e "${BLUE}Installing dependencies...${NC}"
-# Run npm install as the real user to avoid permission issues in node_modules
-sudo -u "$REAL_USER" npm install
-
-if [ $? -ne 0 ]; then
-    echo -e "${RED}NPM install failed.${NC}"
+install_packages() {
+    case "$OS_ID" in
+        ubuntu|debian|raspbian)
+            sudo apt-get update
+            sudo apt-get install -y "$@"
+            ;;
+        centos|rhel|almalinux|rocky)
+            sudo yum install -y "$@"
+            ;;
+        fedora)
+            sudo dnf install -y "$@"
+            ;;
+        *)
+            echo -e "${RED}Unsupported OS for automatic package installation: ${OS_ID}${NC}"
+            echo -e "${YELLOW}Please install the following packages manually: $*${NC}"
             exit 1
-fi
+            ;;
+    esac
+}
 
-# 7. Create Systemd Service File
-SERVICE_FILE="/etc/systemd/system/data-wall.service"
-NODE_PATH=$(command -v node)
+ensure_tooling() {
+    if ! command -v curl >/dev/null 2>&1; then
+        echo -e "${BLUE}Installing curl...${NC}"
+        install_packages curl
+    fi
 
-echo -e "${BLUE}Creating systemd service at $SERVICE_FILE...${NC}"
+    if ! command -v unzip >/dev/null 2>&1; then
+        echo -e "${BLUE}Installing unzip...${NC}"
+        install_packages unzip
+    fi
+}
 
-cat <<EOF > "$SERVICE_FILE"
+configure_nodesource_apt_repo() {
+    sudo install -d -m 0755 /etc/apt/keyrings
+    curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+    echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list >/dev/null
+}
+
+install_node() {
+    echo -e "${BLUE}Verifying Node.js environment...${NC}"
+
+    local node_installed=false
+    if command -v node >/dev/null 2>&1; then
+        local current_node_ver
+        current_node_ver=$(node -v | cut -d'v' -f2 | cut -d'.' -f1)
+        if [ "$current_node_ver" -ge "$MIN_NODE_VERSION" ]; then
+            echo -e "${GREEN}Node.js $(node -v) is already installed.${NC}"
+            node_installed=true
+        else
+            echo -e "${YELLOW}Existing Node.js $(node -v) is too old (requires >= ${MIN_NODE_VERSION}).${NC}"
+        fi
+    fi
+
+    if [ "$node_installed" = true ]; then
+        return
+    fi
+
+    echo -e "${BLUE}Installing Node.js 20.x...${NC}"
+    case "$OS_ID" in
+        ubuntu|debian|raspbian)
+            install_packages ca-certificates curl gnupg
+            configure_nodesource_apt_repo
+            sudo apt-get update
+            sudo apt-get install -y nodejs
+            ;;
+        centos|rhel|almalinux|rocky)
+            install_packages nodejs
+            ;;
+        fedora)
+            install_packages nodejs
+            ;;
+        *)
+            echo -e "${RED}Unsupported OS for automatic Node.js installation: ${OS_ID}${NC}"
+            echo -e "${YELLOW}Please install Node.js >= ${MIN_NODE_VERSION} manually.${NC}"
+            exit 1
+            ;;
+    esac
+
+    require_cmd node "Please install Node.js >= ${MIN_NODE_VERSION} manually and rerun the installer."
+    local installed_major
+    installed_major=$(node -v | cut -d'v' -f2 | cut -d'.' -f1)
+    if [ "$installed_major" -lt "$MIN_NODE_VERSION" ]; then
+        echo -e "${RED}Installed Node.js $(node -v) is still below the required version.${NC}"
+        echo -e "${YELLOW}Please upgrade Node.js manually to >= ${MIN_NODE_VERSION}.${NC}"
+        exit 1
+    fi
+}
+
+download_project_if_needed() {
+    if [ -f "server/index.js" ]; then
+        return
+    fi
+
+    echo -e "${YELLOW}Project files not found. Starting download...${NC}"
+    ensure_tooling
+
+    local temp_dir
+    temp_dir=$(mktemp -d "${TMPDIR:-/tmp}/promdatapanel-install-XXXXXX")
+    local temp_zip="${temp_dir}/promdatapanel_${VERSION}.zip"
+
+    echo -e "${BLUE}Downloading ${DOWNLOAD_URL}...${NC}"
+    curl -fL "$DOWNLOAD_URL" -o "$temp_zip"
+
+    echo -e "${BLUE}Extracting files...${NC}"
+    unzip -q "$temp_zip" -d "$temp_dir"
+
+    local extracted_dir
+    extracted_dir=$(find "$temp_dir" -mindepth 1 -maxdepth 1 -type d | head -n 1)
+    if [ -z "$extracted_dir" ] || [ ! -f "$extracted_dir/server/index.js" ]; then
+        echo -e "${RED}Download succeeded, but archive structure is invalid.${NC}"
+        exit 1
+    fi
+
+    cd "$extracted_dir"
+}
+
+detect_runtime_user() {
+    if [ "$EUID" -eq 0 ]; then
+        REAL_USER="${SUDO_USER:-${USER:-root}}"
+    else
+        REAL_USER="${USER}"
+    fi
+}
+
+write_service_file() {
+    local node_path
+    node_path=$(command -v node)
+    if [ -z "$node_path" ]; then
+        echo -e "${RED}Unable to locate node executable after installation.${NC}"
+        exit 1
+    fi
+
+    local tmp_service
+    tmp_service=$(mktemp "${TMPDIR:-/tmp}/${SERVICE_NAME}.service.XXXXXX")
+
+    cat > "$tmp_service" <<EOF
 [Unit]
-Description=Data Visualization Display Wall
+Description=PromdataPanel Monitoring Dashboard
 After=network.target mysql.service redis-server.service valkey-server.service
 Wants=mysql.service
 
 [Service]
 Type=simple
-User=$REAL_USER
-WorkingDirectory=$PROJECT_DIR
-ExecStart=$NODE_PATH server/index.js
+User=${REAL_USER}
+WorkingDirectory=${PROJECT_DIR}
+ExecStart=${node_path} server/index.js
 Restart=always
 RestartSec=10
-StandardOutput=syslog
-StandardError=syslog
-SyslogIdentifier=data-wall
-# Pass environment via .env file injection
-EnvironmentFile=-$PROJECT_DIR/.env
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=${SERVICE_NAME}
+EnvironmentFile=-${PROJECT_DIR}/.env
 Environment=NODE_ENV=production
 
-# Security Hardening
-CapabilityBoundingSet=
-NoNewPrivileges=true
-LimitNOFILE=65535
-
 [Install]
 WantedBy=multi-user.target
 EOF
 
-# 8. Reload Systemd and Start
-echo -e "${BLUE}Reloading systemd and restarting service...${NC}"
-systemctl daemon-reload
-systemctl enable data-wall
-systemctl restart data-wall
+    echo -e "${BLUE}Creating systemd service at ${SERVICE_FILE}...${NC}"
+    sudo install -m 0644 "$tmp_service" "$SERVICE_FILE"
+    rm -f "$tmp_service"
+}
+
+detect_os
+download_project_if_needed
+detect_runtime_user
+install_node
+
+PROJECT_DIR=$(pwd)
+echo -e "Project Directory: ${GREEN}${PROJECT_DIR}${NC}"
+echo -e "Running User:      ${GREEN}${REAL_USER}${NC}"
+
+if [ ! -f ".env" ] && [ -f ".env.example" ]; then
+    echo -e "${BLUE}Creating .env from .env.example...${NC}"
+    cp .env.example .env
+fi
+
+echo -e "${BLUE}Installing NPM dependencies...${NC}"
+npm install --production
+
+write_service_file
+
+echo -e "${BLUE}Reloading systemd and restarting service...${NC}"
+sudo systemctl daemon-reload
+sudo systemctl enable "$SERVICE_NAME"
+sudo systemctl restart "$SERVICE_NAME"
 
-# 9. Check Status
 echo -e "${BLUE}Checking service status...${NC}"
 sleep 2
-if systemctl is-active --quiet data-wall; then
-    echo -e "${GREEN}SUCCESS: Service is now running.${NC}"
-    PORT=$(grep "^PORT=" .env | cut -d'=' -f2)
+if sudo systemctl is-active --quiet "$SERVICE_NAME"; then
+    echo -e "${GREEN}SUCCESS: PromdataPanel is now running.${NC}"
+    PORT=$(grep "^PORT=" .env 2>/dev/null | cut -d'=' -f2 || true)
     PORT=${PORT:-3000}
-    echo -e "Dashboard URL: ${YELLOW}http://localhost:${PORT}${NC}"
-    echo -e "View logs:     ${BLUE}journalctl -u data-wall -f${NC}"
+    IP_ADDR=$(hostname -I 2>/dev/null | awk '{print $1}')
+    if [ -n "${IP_ADDR:-}" ]; then
+        echo -e "Dashboard URL: ${YELLOW}http://${IP_ADDR}:${PORT}${NC}"
+    fi
 else
     echo -e "${RED}FAILED: Service failed to start.${NC}"
-    echo -e "Check logs with: ${BLUE}journalctl -u data-wall -xe${NC}"
+    echo -e "Check logs with: ${BLUE}journalctl -u ${SERVICE_NAME} -xe${NC}"
 fi
 
 echo -e "${BLUE}================================================${NC}"
+echo -e "${GREEN}Installation completed!${NC}"
+echo -e "${BLUE}================================================${NC}"

package-lock.json

@@ -13,7 +13,8 @@
         "dotenv": "^16.4.0",
         "express": "^4.21.0",
         "ioredis": "^5.10.1",
-        "mysql2": "^3.11.0"
+        "mysql2": "^3.11.0",
+        "ws": "^8.20.0"
       }
     },
     "node_modules/@ioredis/commands": {
@@ -1215,6 +1216,27 @@
       "engines": {
         "node": ">= 0.8"
       }
+    },
+    "node_modules/ws": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.0.tgz",
+      "integrity": "sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
     }
   }
 }

package.json

@@ -1,12 +1,13 @@
 {
-  "name": "data-visualization-display-wall",
+  "name": "promdatapanel",
   "version": "1.0.0",
   "description": "Data Visualization Display Wall - Multi-Prometheus Monitoring Dashboard",
   "main": "server/index.js",
   "scripts": {
     "dev": "node server/index.js",
     "start": "node server/index.js",
-    "init-db": "node server/init-db.js"
+    "init-db": "node server/init-db.js",
+    "db-migrate": "node server/init-db.js"
   },
   "dependencies": {
     "axios": "^1.7.0",
@@ -14,6 +15,7 @@
     "dotenv": "^16.4.0",
     "express": "^4.21.0",
     "ioredis": "^5.10.1",
-    "mysql2": "^3.11.0"
+    "mysql2": "^3.11.0",
+    "ws": "^8.20.0"
   }
 }

public/index.html

@@ -4,19 +4,22 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <meta name="description" content="多源Prometheus服务器监控展示大屏 - 实时CPU、内存、磁盘、网络统计">
-  <title>数据可视化展示大屏</title>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link
-    href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap"
-    rel="stylesheet">
+  <meta name="description" content="LDNET-GA">
+  <title></title>
+  <link rel="icon" id="siteFavicon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
   <link rel="stylesheet" href="/css/style.css">
+  <script src="/vendor/echarts.min.js"></script>
   <script>
     // Prevent theme flicker
     (function () {
       const savedTheme = localStorage.getItem('theme');
       const settings = window.SITE_SETTINGS || {};
+      const sanitizeAssetUrl = (url) => {
+        if (!url || typeof url !== 'string') return null;
+        const trimmed = url.trim();
+        if (!trimmed) return null;
+        return /^(https?:|data:image\/|\/)/i.test(trimmed) ? trimmed : null;
+      };
       const defaultTheme = settings.default_theme || 'dark';
       let theme = savedTheme || defaultTheme;
 
@@ -28,12 +31,69 @@
         document.documentElement.classList.add('light-theme');
       }
 
-      // Also apply title if available to prevent flicker
+      // Also apply title and favicon if available to prevent flicker
       if (settings.page_name) {
         document.title = settings.page_name;
       }
+      
+      const safeFaviconUrl = sanitizeAssetUrl(settings.favicon_url);
+      if (safeFaviconUrl) {
+        const link = document.getElementById('siteFavicon');
+        if (link) link.href = safeFaviconUrl;
+      }
+      
+      // Advanced Anti-Flicker: Wait for header elements to appear
+      const observer = new MutationObserver(function(mutations, me) {
+        const logoText = document.getElementById('logoText');
+        const logoIcon = document.getElementById('logoIconContainer');
+        const header = document.getElementById('header');
+        
+        if (logoText || logoIcon) {
+          // If we found either, apply what we have
+          if (logoText) {
+            const displayTitle = settings.title || settings.page_name || '数据可视化展示大屏';
+            logoText.textContent = displayTitle;
+            if (settings.show_page_name === 0) logoText.style.display = 'none';
+          }
+          
+          if (logoIcon) {
+            const actualTheme = document.documentElement.classList.contains('light-theme') ? 'light' : 'dark';
+            const logoToUse = sanitizeAssetUrl((actualTheme === 'dark' && settings.logo_url_dark) ? settings.logo_url_dark : (settings.logo_url || null));
+            if (logoToUse) {
+              const img = document.createElement('img');
+              img.src = logoToUse;
+              img.alt = 'Logo';
+              img.className = 'logo-icon-img';
+              logoIcon.replaceChildren(img);
+            } else {
+              // Only if we REALLY have no logo URL, we show the default SVG fallback
+              // (But since it's already in HTML, we just don't touch it or we show it if we hid it)
+              const svg = logoIcon.querySelector('svg');
+              if (svg) svg.style.visibility = 'visible';
+            }
+          }
+          
+          // Once found everything or we are past header, we are done
+          if (logoText && logoIcon) me.disconnect();
+        }
+      });
+      observer.observe(document.documentElement, { childList: true, subtree: true });
     })();
   </script>
+  <script>
+    // Global Error Logger for remote debugging
+    window.onerror = function(msg, url, line, col, error) {
+      var debugDiv = document.getElementById('js-debug-overlay');
+      if (!debugDiv) {
+        debugDiv = document.createElement('div');
+        debugDiv.id = 'js-debug-overlay';
+        debugDiv.style.cssText = 'position:fixed;top:0;left:0;width:100%;background:rgba(220,38,38,0.95);color:white;z-index:99999;padding:10px;font-family:monospace;font-size:12px;max-height:30vh;overflow:auto;pointer-events:none;';
+        document.body.appendChild(debugDiv);
+      }
+      debugDiv.innerHTML += '<div>[JS ERROR] ' + msg + ' at ' + line + ':' + col + '</div>';
+      return false;
+    };
+  </script>
 </head>
 
 <body>
@@ -50,7 +110,7 @@
       <div class="header-left">
         <div class="logo">
           <div id="logoIconContainer">
-            <svg class="logo-icon" id="logoSvg" viewBox="0 0 32 32" fill="none">
+            <svg class="logo-icon" id="logoSvg" viewBox="0 0 32 32" fill="none" style="visibility: hidden;">
               <rect x="2" y="2" width="28" height="28" rx="8" stroke="url(#logoGrad)" stroke-width="2.5" />
               <path d="M8 22 L12 14 L16 18 L20 10 L24 16" stroke="url(#logoGrad)" stroke-width="2"
                 stroke-linecap="round" stroke-linejoin="round" fill="none" />
@@ -64,14 +124,7 @@
               </defs>
             </svg>
           </div>
-          <h1 class="logo-text" id="logoText">数据可视化展示大屏</h1>
-        </div>
-        <div class="header-meta">
-          <span class="server-count" id="serverCount">
-            <span class="dot dot-pulse"></span>
-            <span id="serverCountText">0 台服务器</span>
-          </span>
-          <span class="source-count" id="sourceCount">0 个数据源</span>
+          <h1 class="logo-text" id="logoText"></h1>
         </div>
       </div>
       <div class="header-right">
@@ -102,6 +155,13 @@
         <div id="userSection">
           <button class="btn btn-login" id="btnLogin">登录</button>
         </div>
+        <button class="btn-refresh-global" id="btnGlobalRefresh" title="全局强制刷新数据" style="display: none;">
+          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+            <polyline points="23 4 23 10 17 10" />
+            <polyline points="1 20 1 14 7 14" />
+            <path d="M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15" />
+          </svg>
+        </button>
         <button class="btn-settings" id="btnSettings" title="配置管理">
           <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
             stroke-linejoin="round">
@@ -128,7 +188,7 @@
             </svg>
           </div>
           <div class="stat-card-content">
-            <span class="stat-card-label">服务器总数</span>
+            <span class="stat-card-label" id="totalServersLabel">服务器总数</span>
             <span class="stat-card-value" id="totalServers">0</span>
           </div>
         </div>
@@ -187,9 +247,12 @@
             </svg>
           </div>
           <div class="stat-card-content">
-            <span class="stat-card-label">实时总带宽</span>
-            <span class="stat-card-value" id="totalBandwidth">0 B/s</span>
-            <span class="stat-card-sub" id="bandwidthDetail">↓ 0 ↑ 0</span>
+            <span class="stat-card-label">实时带宽 (MB/s ↑/↓)</span>
+            <div class="stat-card-value-group">
+              <span class="stat-card-value" id="totalBandwidthTx">0.00</span>
+              <span class="stat-card-separator">/</span>
+              <span class="stat-card-value" id="totalBandwidthRx">0.00</span>
+            </div>
           </div>
         </div>
       </section>
@@ -206,12 +269,21 @@
                 </svg>
                 网络流量趋势 (24h)
               </h2>
+              <div class="chart-header-actions">
+                <button class="btn-icon" id="btnRefreshNetwork" title="刷新流量趋势">
+                  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" style="width: 16px; height: 16px;">
+                    <path d="M23 4v6h-6M1 20v-6h6M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15"></path>
+                  </svg>
+                </button>
+              </div>
             </div>
             <div class="chart-legend">
-              <span class="legend-item"><span class="legend-dot legend-rx"></span>接收 (RX)</span>
-              <span class="legend-item"><span class="legend-dot legend-tx"></span>发送 (TX)</span>
+              <span class="legend-item" id="legendRx" style="cursor: pointer;" title="点击切换 接收 (RX) 显示/隐藏"><span
+                  class="legend-dot legend-rx"></span>接收 (RX)</span>
+              <span class="legend-item" id="legendTx" style="cursor: pointer;" title="点击切换 发送 (TX) 显示/隐藏"><span
+                  class="legend-dot legend-tx"></span>发送 (TX)</span>
               <span class="legend-item disabled" id="legendP95" style="cursor: pointer;" title="点击切换 P95 线显示/隐藏">
-                <span class="legend-dot legend-p95"></span>95计费 (P95)
+                <span class="legend-dot legend-p95"></span>95计费 (<span id="p95LabelText">上行</span>)
               </span>
             </div>
           </div>
@@ -228,7 +300,7 @@
               <span class="traffic-value" id="traffic24hTx">0 B</span>
             </div>
             <div class="traffic-stat traffic-stat-p95">
-              <span class="traffic-label">95计费带宽</span>
+              <span class="traffic-label">95计费 (上行)</span>
               <span class="traffic-value" id="trafficP95">0 B/s</span>
             </div>
             <div class="traffic-stat traffic-stat-total">
@@ -241,6 +313,43 @@
             </div>
           </div>
         </div>
+
+        <!-- Global Traffic 3D Globe -->
+        <div class="chart-card globe-card" id="globeCard">
+          <div class="chart-card-header">
+            <h2 class="chart-title">
+              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" class="chart-title-icon">
+                <circle cx="12" cy="12" r="10" />
+                <path
+                  d="M2 12h20M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z" />
+              </svg>
+              全球骨干分布
+            </h2>
+            <div class="chart-header-actions">
+              <button class="btn-icon" id="btnExpandGlobe" title="放大显示">
+                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
+                  style="width: 18px; height: 18px;">
+                  <path d="M15 3h6v6M9 21H3v-6M21 3l-7 7M3 21l7-7" />
+                </svg>
+              </button>
+            </div>
+          </div>
+          <div class="globe-body" id="globeContainer"></div>
+          <div class="chart-footer">
+            <div class="traffic-stat">
+              <span class="traffic-label">全球节点总数</span>
+              <span class="traffic-value" id="globeTotalNodes">0</span>
+            </div>
+            <div class="traffic-stat">
+              <span class="traffic-label">覆盖地区/国家</span>
+              <span class="traffic-value" id="globeTotalRegions">0</span>
+            </div>
+            <div class="traffic-stat">
+              <span class="traffic-label">实时活跃状态</span>
+              <span class="traffic-value" style="color: var(--accent-emerald);">Active</span>
+            </div>
+          </div>
+        </div>
       </section>
 
       <!-- Server List -->
@@ -256,32 +365,84 @@
               </svg>
               服务器详情
             </h2>
+            <div class="chart-header-right">
+              <div class="search-box">
+                <input type="search" id="serverSearchFilter" name="q-filter-server" placeholder="检索服务器名称..."
+                  autocomplete="one-time-code" spellcheck="false">
+                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                  stroke-linejoin="round" class="search-icon">
+                  <circle cx="11" cy="11" r="8"></circle>
+                  <line x1="21" y1="21" x2="16.65" y2="16.65"></line>
+                </svg>
+              </div>
+              <button id="btnResetSort" class="btn-icon-sm" title="重置筛选与排序">
+                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                  stroke-linejoin="round">
+                  <path d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8"></path>
+                  <path d="M3 3v5h5"></path>
+                </svg>
+              </button>
+              <select id="sourceFilter" class="source-select">
+                <option value="all">所有数据源</option>
+              </select>
+            </div>
           </div>
           <div class="server-table-wrap">
             <table class="server-table" id="serverTable">
               <thead>
                 <tr>
-                  <th>状态</th>
-                  <th>Job / 实例</th>
-                  <th>数据源</th>
-                  <th>CPU</th>
-                  <th>内存</th>
-                  <th>磁盘</th>
-                  <th>网络 ↓</th>
-                  <th>网络 ↑</th>
+                  <th class="sortable active" data-sort="up">状态 <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="job">Job / 实例 <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="source">数据源 <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="cpu">CPU <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="mem">内存 <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="disk">磁盘 <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="netRx">网络 ↓ <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="netTx">网络 ↑ <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="conntrack">Conntrack <span class="sort-icon"></span></th>
+                  <th class="sortable" data-sort="traffic24h">24h 流量 <span class="sort-icon"></span></th>
                 </tr>
               </thead>
               <tbody id="serverTableBody">
                 <tr class="empty-row">
-                  <td colspan="8">暂无数据 - 请先配置 Prometheus 数据源</td>
+                  <td colspan="10">暂无数据 - 请先配置 Prometheus 数据源</td>
                 </tr>
               </tbody>
             </table>
           </div>
+          <div class="pagination-footer">
+            <div class="page-size-selector">
+              <span>每页显示</span>
+              <select id="pageSizeSelect" class="source-select">
+                <option value="10">10</option>
+                <option value="20" selected>20</option>
+                <option value="50">50</option>
+                <option value="100">100</option>
+              </select>
+              <span>条</span>
+            </div>
+            <div class="pagination-controls" id="paginationControls">
+              <!-- Pagination buttons will be injected here -->
+            </div>
+          </div>
         </div>
       </section>
     </main>
 
+    <!-- Footer -->
+    <footer class="site-footer">
+      <div class="footer-content">
+        <div class="copyright">© <span id="copyrightYear"></span> LDNET-GA-Service. All rights reserved.</div>
+        <div class="filings">
+          <a href="http://www.beian.gov.cn/portal/registerSystemInfo" target="_blank" id="psFilingDisplay" style="display: none;">
+            <span id="psFilingText"></span>
+          </a>
+          <span class="filing-sep"></span>
+          <a href="https://beian.miit.gov.cn/" target="_blank" id="icpFilingDisplay" style="display: none;"></a>
+        </div>
+      </div>
+    </footer>
+
     <!-- Settings Modal -->
     <div class="modal-overlay" id="settingsModal">
       <div class="modal">
@@ -289,6 +450,9 @@
           <div class="modal-tabs">
             <button class="modal-tab active" data-tab="prom">数据源管理</button>
             <button class="modal-tab" data-tab="site">大屏设置</button>
+            <button class="modal-tab" data-tab="security">安全设置</button>
+            <button class="modal-tab" data-tab="latency">延迟线路管理</button>
+            <button class="modal-tab" data-tab="auth">账号安全</button>
           </div>
           <button class="modal-close" id="modalClose">&times;</button>
         </div>
@@ -299,20 +463,51 @@
             <div class="add-source-form" id="addSourceForm">
               <h3>添加数据源</h3>
               <div class="form-row">
-                <div class="form-group">
+                <div class="form-group" style="flex: 0.8;">
+                  <label for="sourceType">类型</label>
+                  <select id="sourceType"
+                    style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); outline: none;">
+                    <option value="prometheus">Prometheus</option>
+                    <option value="blackbox">Blackbox Exporter</option>
+                  </select>
+                </div>
+                <div class="form-group" style="flex: 1;">
                   <label for="sourceName">名称</label>
                   <input type="text" id="sourceName" placeholder="例：生产环境" autocomplete="off">
                 </div>
                 <div class="form-group form-group-wide">
-                  <label for="sourceUrl">Prometheus URL</label>
-                  <input type="url" id="sourceUrl" placeholder="http://prometheus.example.com:9090" autocomplete="off">
+                  <label for="sourceUrl">URL 地址</label>
+                  <input type="url" id="sourceUrl" placeholder="http://1.2.3.4:9090" autocomplete="off">
                 </div>
               </div>
               <div class="form-row">
                 <div class="form-group form-group-wide">
                   <label for="sourceDesc">描述 (可选)</label>
-                  <input type="text" id="sourceDesc" placeholder="数据源描述" autocomplete="off">
+                  <input type="text" id="sourceDesc" placeholder="记录关于此数据源的备注信息" autocomplete="off">
                 </div>
+              </div>
+              <div class="form-row" id="serverSourceOption" style="margin-top: 4px;">
+                <div class="form-group form-group-wide">
+                  <div class="source-options-clean-row">
+                    <label class="source-option-item" title="将此数据源的服务器指标聚合到首页总览中">
+                      <div class="switch-wrapper">
+                        <input type="checkbox" id="isOverviewSource" checked class="switch-input">
+                        <div class="switch-label"></div>
+                      </div>
+                      <span class="source-option-label">加入总览统计</span>
+                    </label>
+                    <label class="source-option-item" title="在服务器详情列表中显示此数据源的服务器">
+                      <div class="switch-wrapper">
+                        <input type="checkbox" id="isDetailSource" checked class="switch-input">
+                        <div class="switch-label"></div>
+                      </div>
+                      <span class="source-option-label">加入详情展示</span>
+                    </label>
+                  </div>
+                  <input type="checkbox" id="isServerSource" checked disabled style="display: none;">
+                </div>
+              </div>
+              <div class="form-row" style="margin-top: 8px;">
                 <div class="form-actions">
                   <button class="btn btn-test" id="btnTest">测试连接</button>
                   <button class="btn btn-add" id="btnAdd">添加</button>
@@ -343,24 +538,218 @@
                 <input type="text" id="siteTitleInput" placeholder="例：数据可视化展示大屏">
               </div>
               <div class="form-group" style="margin-top: 15px;">
-                <label for="logoUrlInput">Logo URL (图片链接，为空则显示默认图标)</label>
-                <input type="url" id="logoUrlInput" placeholder="https://example.com/logo.png">
-              </div>
-              <div class="form-group" style="margin-top: 15px;">
-                <label for="defaultThemeInput">默认主题</label>
-                <select id="defaultThemeInput"
-                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary);">
-                  <option value="dark">默认夜间模式</option>
-                  <option value="light">默认白天模式</option>
-                  <option value="auto">跟随浏览器/系统</option>
+                <label for="showPageNameInput">是否显示左上角标题</label>
+                <select id="showPageNameInput"
+                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); width: 100%;">
+                  <option value="1">显示 (Show)</option>
+                  <option value="0">隐藏 (Hide)</option>
                 </select>
               </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="logoUrlInput">Logo URL (白天/默认，支持图片链接)</label>
+                <input type="url" id="logoUrlInput" placeholder="https://example.com/logo_light.png">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="logoUrlDarkInput">Logo URL (黑夜模式，可为空则使用默认)</label>
+                <input type="url" id="logoUrlDarkInput" placeholder="https://example.com/logo_dark.png">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="faviconUrlInput">Favicon URL (浏览器标签页图标)</label>
+                <input type="url" id="faviconUrlInput" placeholder="https://example.com/favicon.ico">
+              </div>
+              <div class="settings-section" style="margin-top: 25px; border-top: 1px solid var(--border-color); padding-top: 20px;">
+                <h4 style="font-size: 0.85rem; color: var(--accent-indigo); margin-bottom: 15px; text-transform: uppercase; letter-spacing: 0.5px;">界面外观 (Appearance)</h4>
+                <div class="form-group">
+                  <label for="defaultThemeInput">色彩主题模式</label>
+                  <select id="defaultThemeInput"
+                    style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); width: 100%;">
+                    <option value="auto">跟随系统主题 (Sync with OS)</option>
+                    <option value="dark">强制深色模式 (Always Dark)</option>
+                    <option value="light">强制浅色模式 (Always Light)</option>
+                  </select>
+                  <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">选择“跟随系统”后，应用将自动同步您操作系统或浏览器的黑暗/白天模式设置。</p>
+                </div>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="show95BandwidthInput">24h趋势图默认显示 95计费线</label>
+                <select id="show95BandwidthInput"
+                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary);">
+                  <option value="1">显示</option>
+                  <option value="0">不显示</option>
+                </select>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="p95TypeSelect">95带宽计费统计类型</label>
+                <select id="p95TypeSelect"
+                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary);">
+                  <option value="tx">仅统计上行 (TX)</option>
+                  <option value="rx">仅统计下行 (RX)</option>
+                  <option value="both">统计上行+下行 (Sum)</option>
+                  <option value="max">出入取大 (Max)</option>
+                </select>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="prometheusCacheTtlInput">数据自动刷新/同步间隔 (秒)</label>
+                <input type="number" id="prometheusCacheTtlInput" placeholder="例：30" min="0" max="86400">
+                <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">后端将按此频率主动从 Prometheus 抓取数据并缓存。设为 0 则禁用自动同步。建议值：15-60s。</p>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="psFilingInput">公安备案号 (如：京公网安备 11010102000001号)</label>
+                <input type="text" id="psFilingInput" placeholder="请输入公安备案号">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="icpFilingInput">ICP 备案号 (如：京ICP备12345678号)</label>
+                <input type="text" id="icpFilingInput" placeholder="请输入 ICP 备案号">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="cdnUrlInput">静态资源 CDN 地址 (例如: https://cdn.example.com)</label>
+                <input type="url" id="cdnUrlInput" placeholder="留空则使用本地服务器资源">
+                <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">开启后，页面中的 JS/CSS/图片等资源将尝试从该 CDN 加载。请确保 CDN 已正确镜像相关资源。</p>
+              </div>
               <div class="form-actions" style="margin-top: 25px; display: flex; justify-content: flex-end;">
-                <button class="btn btn-add" id="btnSaveSiteSettings">保存设置</button>
+                <button class="btn btn-add" id="btnSaveSiteSettings">保存基础设置</button>
               </div>
               <div class="form-message" id="siteSettingsMessage"></div>
             </div>
           </div>
+
+          <!-- Security Settings Tab -->
+          <div class="tab-content" id="tab-security">
+            <div class="security-settings-form">
+              <h3>安全与隐私设置</h3>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="requireLoginForServerDetailsInput">服务器详情是否仅登录后可查看</label>
+                <select id="requireLoginForServerDetailsInput"
+                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); width: 100%;">
+                  <option value="1">仅登录后可查看</option>
+                  <option value="0">允许公开查看</option>
+                </select>
+                <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">开启后，未登录访客仍可看到大屏总览，但点击单台服务器时需要先登录。</p>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="showServerIpInput">是否在服务器详情中显示公网 IP</label>
+                <select id="showServerIpInput"
+                  style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); width: 100%;">
+                  <option value="1">显示 (Show)</option>
+                  <option value="0">隐藏 (Hide)</option>
+                </select>
+                <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">开启后，点击服务器详情时会显示该服务器的公网 IP 地址。</p>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="ipMetricNameInput">自定义 IP 采集指标 (可选)</label>
+                <input type="text" id="ipMetricNameInput" placeholder="例：node_network_address_info">
+                <p style="font-size: 0.72rem; color: var(--text-muted); margin-top: 6px;">如果您的 Prometheus 中有专门记录 IP 的指标，请在此输入。留空则尝试自动发现。</p>
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="ipLabelNameInput">IP 指标中的 Label 名称</label>
+                <input type="text" id="ipLabelNameInput" placeholder="默认：address">
+              </div>
+              <div class="form-actions" style="margin-top: 25px; display: flex; justify-content: flex-end;">
+                <button class="btn btn-add" id="btnSaveSecuritySettings">保存安全设置</button>
+              </div>
+              <div class="form-message" id="securitySettingsMessage"></div>
+            </div>
+          </div>
+
+          <!-- Custom Detail Metrics Tab -->
+          <div class="tab-content" id="tab-details-metrics">
+            <div class="metrics-settings-form">
+              <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px;">
+                <h3 style="margin: 0;">服务器详情指标配置</h3>
+                <button class="btn btn-add" id="btnAddCustomMetric" style="padding: 6px 12px; font-size: 0.8rem;">
+                  <i class="fas fa-plus"></i> 添加指标
+                </button>
+              </div>
+              
+              <div id="customMetricsList" class="custom-metrics-list" style="max-height: 400px; overflow-y: auto; padding-right: 5px;">
+                <!-- Dynamic rows will be added here -->
+              </div>
+
+              <div class="form-actions" style="margin-top: 25px; display: flex; justify-content: flex-end;">
+                <button class="btn btn-add" id="btnSaveCustomMetrics">保存指标配置</button>
+              </div>
+              <div class="form-message" id="customMetricsMessage"></div>
+            </div>
+          </div>
+
+          <!-- Latency Routes Tab -->
+          <div class="tab-content" id="tab-latency">
+            <div class="latency-settings-form">
+              <h3>Blackbox 延迟连线管理</h3>
+              <div class="latency-routes-manager">
+                <!-- Add Route Form -->
+                <div class="add-route-mini-form"
+                  style="background: rgba(255,255,255,0.02); padding: 15px; border-radius: 8px; margin-bottom: 20px; border: 1px solid var(--border-color);">
+                  <div class="form-row">
+                    <div class="form-group" style="flex: 1.5;">
+                      <label>探测用服务器</label>
+                      <select id="routeSourceSelect"
+                        style="padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary);">
+                        <option value="">-- 选择数据源 --</option>
+                      </select>
+
+                    </div>
+                    <div class="form-group">
+                      <label>起航点</label>
+                      <input type="text" id="routeSourceInput" placeholder="例：China">
+                    </div>
+                    <div class="form-group">
+                      <label>目的地</label>
+                      <input type="text" id="routeDestInput" placeholder="例：United States">
+                    </div>
+                  </div>
+                  <div class="form-row" style="margin-top: 10px; align-items: flex-end;">
+                    <div class="form-group" style="flex: 2;">
+                      <label>Blackbox 探测目标 (IP 或 域名)</label>
+                      <input type="text" id="routeTargetInput" placeholder="例：1.1.1.1 或 google.com">
+                    </div>
+                    <div class="form-actions" style="padding-bottom: 0; display: flex; gap: 8px;">
+                      <button class="btn btn-add" id="btnAddRoute" style="padding: 10px 24px;">添加线路</button>
+                      <button class="btn btn-test" id="btnCancelEditRoute"
+                        style="display: none; padding: 10px 15px; background: rgba(0,0,0,0.3);">取消</button>
+                    </div>
+                  </div>
+                </div>
+
+                <!-- Routes List -->
+                <div class="latency-routes-list-container">
+                  <h4
+                    style="font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase;; margin-bottom: 10px;">
+                    已配置线路</h4>
+                  <div id="latencyRoutesList" class="latency-routes-list"
+                    style="display: flex; flex-direction: column; gap: 10px;">
+                    <!-- Routes will be injected here -->
+                    <div class="route-empty"
+                      style="text-align: center; padding: 20px; color: var(--text-muted); font-size: 0.85rem; background: rgba(0,0,0,0.1); border-radius: 8px;">
+                      暂无线路</div>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <!-- Account Security Tab -->
+          <div class="tab-content" id="tab-auth">
+            <div class="security-settings-form">
+              <h3>修改登录密码</h3>
+              <div class="form-group">
+                <label for="oldPassword">当前密码</label>
+                <input type="password" id="oldPassword" placeholder="请输入当前旧密码">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="newPassword">新密码</label>
+                <input type="password" id="newPassword" placeholder="请输入要设置的新密码">
+              </div>
+              <div class="form-group" style="margin-top: 15px;">
+                <label for="confirmNewPassword">确认新密码</label>
+                <input type="password" id="confirmNewPassword" placeholder="请再次确认新密码">
+              </div>
+              <div class="form-actions" style="margin-top: 25px; display: flex; justify-content: flex-end;">
+                <button class="btn btn-add" id="btnChangePassword">提交修改</button>
+              </div>
+              <div class="form-message" id="changePasswordMessage"></div>
+            </div>
+          </div>
         </div>
       </div>
     </div>
@@ -370,20 +759,35 @@
       <div class="modal" style="max-width: 800px; width: 95%;">
         <div class="modal-header">
           <div style="display: flex; flex-direction: column;">
-            <h2 id="serverDetailTitle" style="margin-bottom: 4px;">服务器详情</h2>
-            <div id="serverDetailSubtitle" style="font-size: 0.85rem; color: var(--text-secondary); font-family: var(--font-mono);"></div>
+            <h2 id="serverDetailTitle" style="margin-bottom: 0;">服务器详情</h2>
           </div>
           <button class="modal-close" id="serverDetailClose">&times;</button>
         </div>
         <div class="modal-body" id="serverDetailBody" style="padding: 0;">
           <div id="detailLoading" style="text-align: center; padding: 40px; display: none;">
-            <div class="dot dot-pulse" style="display: inline-block; width: 12px; height: 12px; background: var(--accent-indigo);"></div>
+            <div class="dot dot-pulse"
+              style="display: inline-block; width: 12px; height: 12px; background: var(--accent-indigo);"></div>
             <span style="margin-left: 10px; color: var(--text-secondary);">正在从数据源读取详情...</span>
           </div>
           <div class="detail-container" id="detailContainer">
             <!-- Metric Items are injected here -->
             <div class="detail-metrics-list" id="detailMetricsList"></div>
 
+            <div class="detail-partitions-container metric-item" id="detailPartitionsContainer" style="display: none;">
+              <div class="metric-item-header" id="partitionHeader">
+                <div class="metric-label-group">
+                  <span class="metric-label">磁盘分区详情 (已挂载)</span>
+                  <span class="metric-value" id="partitionSummary">读取中...</span>
+                </div>
+                <svg class="chevron-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                  <polyline points="6 9 12 15 18 9"></polyline>
+                </svg>
+              </div>
+              <div class="metric-item-content" id="partitionContent">
+                <div class="detail-partitions-list" id="detailPartitionsList"></div>
+              </div>
+            </div>
+
             <div class="detail-info-grid" id="detailInfoGrid">
               <div class="info-item">
                 <span class="info-label">CPU 核心总数</span>
@@ -397,6 +801,10 @@
                 <span class="info-label">运行时间 (Uptime)</span>
                 <span class="info-value" id="detailUptime">0天 0小时</span>
               </div>
+              <div class="info-item">
+                <span class="info-label">硬盘总量统计</span>
+                <span class="info-value" id="detailDiskTotal">0 GB</span>
+              </div>
             </div>
           </div>
         </div>

public/init.html

@@ -4,9 +4,6 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>系统初始化 - 数据可视化展示大屏</title>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap" rel="stylesheet">
   <link rel="stylesheet" href="/css/style.css">
   <style>
     body {
@@ -70,6 +67,33 @@
       justify-content: center;
       padding: 10px 0;
     }
+
+    @media (max-width: 480px) {
+      body {
+        align-items: flex-start;
+        padding: 16px 12px;
+      }
+      .init-container {
+        padding: 24px 18px;
+        border-radius: 10px;
+        max-width: 100%;
+      }
+      .init-header h2 {
+        font-size: 18px;
+      }
+      .init-header p {
+        font-size: 12px;
+      }
+      .form-row {
+        flex-direction: column;
+      }
+      .actions {
+        flex-direction: column;
+      }
+      .actions .btn {
+        width: 100%;
+      }
+    }
   </style>
 </head>
 <body>
@@ -117,11 +141,34 @@
         </div>
       </div>
 
+      <div class="init-header" style="margin: 24px 0 16px 0; text-align: left;">
+        <h3 style="font-size: 16px; color: var(--text-main); margin: 0;">Valkey / Redis 缓存配置 (可选)</h3>
+      </div>
+
+      <div class="form-row">
+        <div class="form-group" style="flex: 2;">
+          <label for="vHost">Valkey 地址</label>
+          <input type="text" id="vHost" value="localhost" placeholder="localhost" autocomplete="off">
+        </div>
+        <div class="form-group" style="flex: 1;">
+          <label for="vPort">端口</label>
+          <input type="number" id="vPort" value="6379" placeholder="6379" autocomplete="off">
+        </div>
+      </div>
+      
+      <div class="form-row">
+        <div class="form-group form-group-wide">
+          <label for="vPassword">Valkey 密码</label>
+          <input type="password" id="vPassword" placeholder="留空则无密码">
+        </div>
+      </div>
+      
       <div class="form-message" id="messageBox"></div>
       
-      <div class="actions">
-        <button class="btn btn-test" id="btnTest">测试连接</button>
-        <button class="btn btn-add" id="btnInit">初始化数据库</button>
+      <div class="actions" style="flex-wrap: wrap;">
+        <button class="btn btn-test" id="btnTest" style="flex: 1 1 45%;">测试 MySQL</button>
+        <button class="btn btn-test" id="btnTestValkey" style="flex: 1 1 45%;">测试 Valkey</button>
+        <button class="btn btn-add" id="btnInit" style="flex: 1 1 100%;">确认并初始化系统</button>
       </div>
     </div>
     
@@ -165,8 +212,8 @@
       </div>
       <div class="form-row">
         <div class="form-group form-group-wide">
-          <label for="promName">数据源名称</label>
-          <input type="text" id="promName" placeholder="例如：生产环境" autocomplete="off">
+          <label for="promSourceName">数据源名称</label>
+          <input type="text" id="promSourceName" name="p-source-name-init" placeholder="例如：生产环境" autocomplete="one-time-code">
         </div>
       </div>
       

public/js/chart.js

@@ -10,14 +10,99 @@ class AreaChart {
     this.animProgress = 0;
     this.animFrame = null;
     this.showP95 = false;
+    this.showRx = true;
+    this.showTx = true;
+    this.p95Type = 'tx'; // 'tx', 'rx', 'both'
     this.dpr = window.devicePixelRatio || 1;
     this.padding = { top: 20, right: 16, bottom: 32, left: 56 };
 
-    this._resize = this.resize.bind(this);
+    this.prevMaxVal = 0;
+    this.currentMaxVal = 0;
+    this.lastDataHash = ''; // Fingerprint for optimization
+
+    // Use debounced resize for performance and safety
+    this._resize = typeof debounce === 'function' ? debounce(this.resize.bind(this), 100) : this.resize.bind(this);
     window.addEventListener('resize', this._resize);
+
+    // Drag zoom support
+    this.isDraggingP95 = false;
+    this.customMaxVal = null;
+
+    this.onPointerDown = this.onPointerDown.bind(this);
+    this.onPointerMove = this.onPointerMove.bind(this);
+    this.onPointerUp = this.onPointerUp.bind(this);
+
+    this.canvas.addEventListener('pointerdown', this.onPointerDown);
+    window.addEventListener('pointermove', this.onPointerMove);
+    window.addEventListener('pointerup', this.onPointerUp);
+
     this.resize();
   }
 
+  onPointerDown(e) {
+    if (!this.showP95 || !this.p95) return;
+    const rect = this.canvas.getBoundingClientRect();
+    const scaleY = this.height / rect.height;
+    const y = (e.clientY - rect.top) * scaleY;
+
+    const p = this.padding;
+    const chartH = this.height - p.top - p.bottom;
+
+    // Calculate current P95 Y position
+    const k = 1024;
+    const currentMaxVal = (this.customMaxVal !== null ? this.customMaxVal : (this.currentMaxVal || 1024));
+    let unitIdx = Math.floor(Math.log(Math.max(1, currentMaxVal)) / Math.log(k));
+    unitIdx = Math.max(0, Math.min(unitIdx, 4));
+    const unitFactor = Math.pow(k, unitIdx);
+    const rawValInUnit = (currentMaxVal * 1.15) / unitFactor;
+    let niceMaxInUnit;
+    if (rawValInUnit <= 1) niceMaxInUnit = 1;
+    else if (rawValInUnit <= 2) niceMaxInUnit = 2;
+    else if (rawValInUnit <= 5) niceMaxInUnit = 5;
+    else if (rawValInUnit <= 10) niceMaxInUnit = 10;
+    else if (rawValInUnit <= 20) niceMaxInUnit = 20;
+    else if (rawValInUnit <= 50) niceMaxInUnit = 50;
+    else if (rawValInUnit <= 100) niceMaxInUnit = 100;
+    else if (rawValInUnit <= 200) niceMaxInUnit = 200;
+    else if (rawValInUnit <= 500) niceMaxInUnit = 500;
+    else if (rawValInUnit <= 1000) niceMaxInUnit = 1000;
+    else niceMaxInUnit = Math.ceil(rawValInUnit / 100) * 100;
+
+    const displayMaxVal = this.customMaxVal !== null ? this.customMaxVal : (niceMaxInUnit * unitFactor);
+    const p95Y = p.top + chartH - (this.p95 / (displayMaxVal || 1)) * chartH;
+
+    if (Math.abs(y - p95Y) < 25) {
+      this.isDraggingP95 = true;
+      this.canvas.style.cursor = 'ns-resize';
+      this.canvas.setPointerCapture(e.pointerId);
+      e.preventDefault();
+      e.stopPropagation();
+    }
+  }
+
+  onPointerMove(e) {
+    if (!this.isDraggingP95) return;
+    const rect = this.canvas.getBoundingClientRect();
+    const scaleY = this.height / rect.height;
+    const y = (e.clientY - rect.top) * scaleY;
+    const p = this.padding;
+    const chartH = this.height - p.top - p.bottom;
+
+    const dy = p.top + chartH - y;
+    if (dy > 10) {
+      this.customMaxVal = (this.p95 * chartH) / dy;
+      this.draw();
+    }
+  }
+
+  onPointerUp(e) {
+    if (this.isDraggingP95) {
+      this.isDraggingP95 = false;
+      this.canvas.style.cursor = '';
+      this.canvas.releasePointerCapture(e.pointerId);
+    }
+  }
+
   resize() {
     const rect = this.canvas.parentElement.getBoundingClientRect();
     this.width = rect.width;
@@ -33,8 +118,31 @@ class AreaChart {
   setData(data) {
     if (!data || !data.timestamps) return;
 
-    // Downsample if data is too dense (target ~1500 points for performance)
-    const MAX_POINTS = 1500;
+    // 1. Data Fingerprinting: Skip redundant updates to save GPU/CPU
+    const fingerprint = data.timestamps.length + '_' + 
+                        (data.rx.length > 0 ? data.rx[data.rx.length - 1] : 0) + '_' +
+                        (data.tx.length > 0 ? data.tx[data.tx.length - 1] : 0);
+    
+    if (fingerprint === this.lastDataHash) return;
+    this.lastDataHash = fingerprint;
+
+    // Store old data for smooth transition before updating this.data
+    // Only clone if there is data to clone; otherwise use empty set
+    if (this.data && this.data.timestamps && this.data.timestamps.length > 0) {
+      this.prevData = {
+        timestamps: [...this.data.timestamps],
+        rx: [...this.data.rx],
+        tx: [...this.data.tx]
+      };
+    } else {
+      this.prevData = { timestamps: [], rx: [], tx: [] };
+    }
+
+    // Smoothly transition max value context too
+    this.prevMaxVal = this.currentMaxVal || 0;
+
+    // Downsample if data is too dense (target ~500 points for GPU performance)
+    const MAX_POINTS = 500;
     if (data.timestamps.length > MAX_POINTS) {
       const skip = Math.ceil(data.timestamps.length / MAX_POINTS);
       const downsampled = { timestamps: [], rx: [], tx: [] };
@@ -48,10 +156,26 @@ class AreaChart {
       this.data = data;
     }
 
+    // Refresh currentMaxVal target for interpolation in draw()
+    let rawMax = 1024;
+    for (let i = 0; i < this.data.rx.length; i++) {
+      if (this.showRx) rawMax = Math.max(rawMax, this.data.rx[i] || 0);
+      if (this.showTx) rawMax = Math.max(rawMax, this.data.tx[i] || 0);
+    }
+    this.currentMaxVal = rawMax;
+
     // Calculate P95 (95th percentile)
-    // Common standard: 95th percentile of the peak (max of rx/tx or sum)
-    // We'll use max(rx, tx) at each point which is common for billing
-    const combined = data.rx.map((r, i) => Math.max(r || 0, data.tx[i] || 0));
+    let combined = [];
+    if (this.p95Type === 'tx') {
+      combined = data.tx.map(t => t || 0);
+    } else if (this.p95Type === 'rx') {
+      combined = data.rx.map(r => r || 0);
+    } else if (this.p95Type === 'max') {
+      combined = data.tx.map((t, i) => Math.max(t || 0, data.rx[i] || 0));
+    } else {
+      combined = data.tx.map((t, i) => (t || 0) + (data.rx[i] || 0));
+    }
+
     if (combined.length > 0) {
       const sorted = [...combined].sort((a, b) => a - b);
       const p95Idx = Math.floor(sorted.length * 0.95);
@@ -67,7 +191,7 @@ class AreaChart {
   animate() {
     if (this.animFrame) cancelAnimationFrame(this.animFrame);
     const start = performance.now();
-    const duration = 800;
+    const duration = 400; // Shorter animation = less GPU time
 
     const step = (now) => {
       const elapsed = now - start;
@@ -103,25 +227,24 @@ class AreaChart {
       return;
     }
 
-    // Find max raw value
-    let maxDataVal = 0;
-    for (let i = 0; i < rx.length; i++) {
-      maxDataVal = Math.max(maxDataVal, rx[i] || 0, tx[i] || 0);
+    // Determine consistent unit based on max data value
+    let maxDataVal = 1024;
+    if (this.prevMaxVal && this.animProgress < 1) {
+      // Interpolate the max value context to keep vertical scale smooth
+      maxDataVal = this.prevMaxVal + (this.currentMaxVal - this.prevMaxVal) * (this.animProgress || 0);
+    } else {
+      maxDataVal = this.currentMaxVal;
     }
 
-    // Determine consistent unit based on max data value
     const k = 1024;
     const sizes = ['B/s', 'KB/s', 'MB/s', 'GB/s', 'TB/s'];
     let unitIdx = Math.floor(Math.log(Math.max(1, maxDataVal)) / Math.log(k));
     unitIdx = Math.max(0, Math.min(unitIdx, sizes.length - 1));
     const unitFactor = Math.pow(k, unitIdx);
-    const unitLabel = sizes[unitIdx];
 
     // Get value in current units and find a "nice" round max
-    // Use 1.15 cushion
     const rawValInUnit = (maxDataVal * 1.15) / unitFactor;
     let niceMaxInUnit;
-    
     if (rawValInUnit <= 1) niceMaxInUnit = 1;
     else if (rawValInUnit <= 2) niceMaxInUnit = 2;
     else if (rawValInUnit <= 5) niceMaxInUnit = 5;
@@ -134,14 +257,27 @@ class AreaChart {
     else if (rawValInUnit <= 1000) niceMaxInUnit = 1000;
     else niceMaxInUnit = Math.ceil(rawValInUnit / 100) * 100;
 
-    const maxVal = niceMaxInUnit * unitFactor;
+    let maxVal = niceMaxInUnit * unitFactor;
+    if (this.customMaxVal !== null) {
+      maxVal = this.customMaxVal;
+    }
+
+    // Recalculate units based on final maxVal (could be zoomed)
+    let finalUnitIdx = Math.floor(Math.log(Math.max(1, maxVal)) / Math.log(k));
+    finalUnitIdx = Math.max(0, Math.min(finalUnitIdx, sizes.length - 1));
+    const finalFactor = Math.pow(k, finalUnitIdx);
+    const finalUnitLabel = sizes[finalUnitIdx];
 
     const len = timestamps.length;
     const xStep = chartW / (len - 1);
 
-    // Helper to get point
+    // Helper to get point with smooth value transition
     const getX = (i) => p.left + i * xStep;
-    const getY = (val) => p.top + chartH - (val / (maxVal || 1)) * chartH * this.animProgress;
+    const getY = (val, prevVal = 0) => {
+      // Interpolate value from previous state to new state
+      const actualVal = prevVal + (val - prevVal) * this.animProgress;
+      return p.top + chartH - (actualVal / (maxVal || 1)) * chartH;
+    };
 
     // Draw grid lines
     ctx.strokeStyle = 'rgba(99, 102, 241, 0.08)';
@@ -154,14 +290,14 @@ class AreaChart {
         ctx.lineTo(p.left + chartW, y);
         ctx.stroke();
 
-      // Y-axis labels - share the same unit for readability
-      const valInUnit = niceMaxInUnit * (1 - i / gridLines);
+        // Y-axis labels
+        const v = maxVal * (1 - i / gridLines);
+        const valInUnit = v / finalFactor;
         ctx.fillStyle = '#5a6380';
         ctx.font = '10px "JetBrains Mono", monospace';
         ctx.textAlign = 'right';
 
-      // Format: "X.X MB/s" or "X MB/s"
-      const label = (valInUnit % 1 === 0 ? valInUnit : valInUnit.toFixed(1)) + ' ' + unitLabel;
+        const label = (valInUnit % 1 === 0 ? valInUnit : valInUnit.toFixed(1)) + ' ' + finalUnitLabel;
         ctx.fillText(label, p.left - 10, y + 3);
     }
 
@@ -174,41 +310,42 @@ class AreaChart {
       const x = getX(i);
       ctx.fillText(formatTime(timestamps[i]), x, h - 8);
     }
-    // Always show last label
     ctx.fillText(formatTime(timestamps[len - 1]), getX(len - 1), h - 8);
 
-    // Draw TX area
-    this.drawArea(ctx, tx, getX, getY, chartH, p,
-      'rgba(99, 102, 241, 0.25)', 'rgba(99, 102, 241, 0.02)',
-      '#6366f1', len);
+    // Draw data areas with clipping
+    ctx.save();
+    ctx.beginPath();
+    ctx.rect(p.left, p.top, chartW, chartH);
+    ctx.clip();
 
-    // Draw RX area (on top)
-    this.drawArea(ctx, rx, getX, getY, chartH, p,
-      'rgba(6, 182, 212, 0.25)', 'rgba(6, 182, 212, 0.02)',
-      '#06b6d4', len);
+    if (this.showTx) {
+      this.drawArea(ctx, tx, this.prevData ? this.prevData.tx : null, getX, getY, chartH, p,
+        'rgba(99, 102, 241, 0.25)', 'rgba(99, 102, 241, 0.02)', '#6366f1', len);
+    }
+    if (this.showRx) {
+      this.drawArea(ctx, rx, this.prevData ? this.prevData.rx : null, getX, getY, chartH, p,
+        'rgba(6, 182, 212, 0.25)', 'rgba(6, 182, 212, 0.02)', '#06b6d4', len);
+    }
+    ctx.restore();
 
     // Draw P95 line
-    if (this.showP95 && this.p95 && this.animProgress === 1) {
+    if (this.showP95 && this.p95 && (this.animProgress === 1 || this.isDraggingP95)) {
       const p95Y = getY(this.p95);
-      // Only draw if within visible range
       if (p95Y >= p.top && p95Y <= p.top + chartH) {
         ctx.save();
         ctx.beginPath();
         ctx.setLineDash([6, 4]);
-        ctx.strokeStyle = 'rgba(244, 63, 94, 0.85)'; // --accent-rose
+        ctx.strokeStyle = 'rgba(244, 63, 94, 0.85)';
         ctx.lineWidth = 1.5;
         ctx.moveTo(p.left, p95Y);
         ctx.lineTo(p.left + chartW, p95Y);
         ctx.stroke();
 
-        // P95 label background
         const label = '95计费: ' + (window.formatBandwidth ? window.formatBandwidth(this.p95) : this.p95.toFixed(2));
         ctx.font = 'bold 11px "JetBrains Mono", monospace';
         const metrics = ctx.measureText(label);
         ctx.fillStyle = 'rgba(244, 63, 94, 0.15)';
         ctx.fillRect(p.left + 8, p95Y - 20, metrics.width + 12, 18);
-        
-        // P95 label text
         ctx.fillStyle = '#f43f5e';
         ctx.textAlign = 'left';
         ctx.fillText(label, p.left + 14, p95Y - 7);
@@ -217,22 +354,23 @@ class AreaChart {
     }
   }
 
-  drawArea(ctx, values, getX, getY, chartH, p, fillColorTop, fillColorBottom, strokeColor, len) {
+  drawArea(ctx, values, prevValues, getX, getY, chartH, p, fillColorTop, fillColorBottom, strokeColor, len) {
     if (!values || values.length === 0) return;
 
-    const useSimple = len > 500;
+    const useSimple = len > 80;
+    const getPVal = (i) => (prevValues && i < prevValues.length) ? prevValues[i] : 0;
 
     // Fill
     ctx.beginPath();
-    ctx.moveTo(getX(0), getY(values[0] || 0));
+    ctx.moveTo(getX(0), getY(values[0] || 0, getPVal(0)));
     for (let i = 1; i < len; i++) {
+      const currY = getY(values[i] || 0, getPVal(i));
       if (useSimple) {
-        ctx.lineTo(getX(i), getY(values[i] || 0));
+        ctx.lineTo(getX(i), currY);
       } else {
         const prevX = getX(i - 1);
         const currX = getX(i);
-        const prevY = getY(values[i - 1] || 0);
-        const currY = getY(values[i] || 0);
+        const prevY = getY(values[i - 1] || 0, getPVal(i - 1));
         const midX = (prevX + currX) / 2;
         ctx.bezierCurveTo(midX, prevY, midX, currY, currX, currY);
       }
@@ -249,15 +387,15 @@ class AreaChart {
 
     // Stroke
     ctx.beginPath();
-    ctx.moveTo(getX(0), getY(values[0] || 0));
+    ctx.moveTo(getX(0), getY(values[0] || 0, getPVal(0)));
     for (let i = 1; i < len; i++) {
+      const currY = getY(values[i] || 0, getPVal(i));
       if (useSimple) {
-        ctx.lineTo(getX(i), getY(values[i] || 0));
+        ctx.lineTo(getX(i), currY);
       } else {
         const prevX = getX(i - 1);
         const currX = getX(i);
-        const prevY = getY(values[i - 1] || 0);
-        const currY = getY(values[i] || 0);
+        const prevY = getY(values[i - 1] || 0, getPVal(i - 1));
         const midX = (prevX + currX) / 2;
         ctx.bezierCurveTo(midX, prevY, midX, currY, currX, currY);
       }
@@ -278,13 +416,18 @@ class MetricChart {
   constructor(canvas, unit = '') {
     this.canvas = canvas;
     this.ctx = canvas.getContext('2d');
-    this.data = { timestamps: [], values: [] };
+    this.data = { timestamps: [], values: [], series: null };
     this.unit = unit; // '%', 'B/s', etc.
     this.dpr = window.devicePixelRatio || 1;
-    this.padding = { top: 10, right: 10, bottom: 20, left: 60 };
+    this.padding = { top: 10, right: 10, bottom: 35, left: 60 };
     this.animProgress = 0;
 
-    this._resize = this.resize.bind(this);
+    this.prevMaxVal = 0;
+    this.currentMaxVal = 0;
+    this.lastDataHash = ''; // Fingerprint for optimization
+
+    // Use debounced resize for performance and safety
+    this._resize = typeof debounce === 'function' ? debounce(this.resize.bind(this), 100) : this.resize.bind(this);
     window.addEventListener('resize', this._resize);
     this.resize();
   }
@@ -305,14 +448,46 @@ class MetricChart {
   }
 
   setData(data) {
-    this.data = data || { timestamps: [], values: [] };
+    if (!data || !data.timestamps) return;
+
+    // 1. Simple fingerprinting to avoid constant re-animation of same data
+    const lastVal = data.values && data.values.length > 0 ? data.values[data.values.length - 1] : 0;
+    const fingerprint = data.timestamps.length + '_' + lastVal + '_' + (data.series ? 's' : 'v');
+    
+    if (fingerprint === this.lastDataHash) return;
+    this.lastDataHash = fingerprint;
+
+    if (this.data && this.data.values && this.data.values.length > 0) {
+      this.prevData = JSON.parse(JSON.stringify(this.data));
+    } else {
+      this.prevData = { timestamps: [], values: [], series: null };
+    }
+
+    this.prevMaxVal = this.currentMaxVal || 0;
+    this.data = data || { timestamps: [], values: [], series: null };
+
+    // Target max
+    if (this.data.series) {
+      this.currentMaxVal = 100;
+    } else {
+      const raw = Math.max(...(this.data.values || []), 0.1);
+      if (this.unit === '%' && raw <= 100) {
+        if (raw > 80) this.currentMaxVal = 100;
+        else if (raw > 40) this.currentMaxVal = 80;
+        else if (raw > 20) this.currentMaxVal = 50;
+        else this.currentMaxVal = 25;
+      } else {
+        this.currentMaxVal = raw * 1.25;
+      }
+    }
+
     this.animate();
   }
 
   animate() {
     if (this.animFrame) cancelAnimationFrame(this.animFrame);
     const start = performance.now();
-    const duration = 500;
+    const duration = 300; // Snappier and lighter on GPU
     const step = (now) => {
       const elapsed = now - start;
       this.animProgress = Math.min(elapsed / duration, 1);
@@ -333,7 +508,7 @@ class MetricChart {
 
     ctx.clearRect(0, 0, w, h);
 
-    const { timestamps, values } = this.data;
+    const { timestamps, values, series } = this.data;
     if (!timestamps || timestamps.length < 2) {
       ctx.fillStyle = '#5a6380';
       ctx.font = '11px sans-serif';
@@ -342,21 +517,18 @@ class MetricChart {
       return;
     }
 
-    // Find max with cushion
-    let maxVal = Math.max(...values, 0.1);
-    if (this.unit === '%' && maxVal <= 100) {
-        if (maxVal > 80) maxVal = 100;
-        else if (maxVal > 40) maxVal = 80;
-        else if (maxVal > 20) maxVal = 50;
-        else maxVal = 25;
-    } else {
-        maxVal = maxVal * 1.25;
-    }
+    // Determine Y max (interpolated)
+    const targetMax = this.currentMaxVal || 0.1;
+    const startMax = this.prevMaxVal || targetMax;
+    const maxVal = startMax + (targetMax - startMax) * this.animProgress;
 
     const len = timestamps.length;
     const xStep = chartW / (len - 1);
     const getX = (i) => p.left + i * xStep;
-    const getY = (val) => p.top + chartH - (val / (maxVal || 1)) * chartH * this.animProgress;
+    const getY = (val, prevVal = 0) => {
+      const actualVal = prevVal + (val - prevVal) * this.animProgress;
+      return p.top + chartH - (actualVal / (maxVal || 1)) * chartH;
+    };
 
     // Grid
     ctx.strokeStyle = 'rgba(99, 102, 241, 0.05)';
@@ -374,25 +546,122 @@ class MetricChart {
       ctx.textAlign = 'right';
 
       let label = '';
-      if (this.unit === 'B/s') {
-          label = window.formatBandwidth ? window.formatBandwidth(v) : v.toFixed(0);
+      if (this.unit === 'B/s' || this.unit === 'B') {
+        const isRate = this.unit === 'B/s';
+        if (window.formatBandwidth && isRate) {
+          label = window.formatBandwidth(v);
+        } else if (window.formatBytes) {
+          label = window.formatBytes(v) + (isRate ? '/s' : '');
+        } else {
+          label = v.toFixed(0) + this.unit;
+        }
+      } else if (this.unit === '%' && this.totalValue) {
+        // 当提供了总量时，将百分比转换为实际数值显示（例如内存显示 2GB 而非 25%）
+        const absVal = v * (this.totalValue / 100);
+        label = window.formatBytes ? window.formatBytes(absVal) : absVal.toFixed(0);
       } else {
         label = (v >= 1000 ? (v / 1000).toFixed(1) + 'k' : v.toFixed(v < 10 && v > 0 ? 1 : 0)) + this.unit;
       }
       ctx.fillText(label, p.left - 8, y + 3);
     }
 
-    // Path
+    // X-axis Timeline
+    ctx.fillStyle = '#5a6380';
+    ctx.font = '9px "JetBrains Mono", monospace';
+    ctx.textAlign = 'center';
+    const labelInterval = Math.max(1, Math.floor(len / 5));
+    for (let i = 0; i < len; i += labelInterval) {
+      const x = getX(i);
+      ctx.fillText(formatTime(timestamps[i]), x, h - 8);
+    }
+    // Always show last label if not already shown
+    if ((len - 1) % labelInterval !== 0) {
+      ctx.fillText(formatTime(timestamps[len - 1]), getX(len - 1), h - 8);
+    }
+
+    if (series) {
+      // Draw Stacked Area
+      const modes = [
+        { name: 'idle', color: 'rgba(34, 197, 94, 0.4)', stroke: '#22c55e' },   // Green
+        { name: 'other', color: 'rgba(168, 85, 247, 0.4)', stroke: '#a855f7' },  // Purple
+        { name: 'irq', color: 'rgba(249, 115, 22, 0.4)', stroke: '#f97316' },    // Orange
+        { name: 'iowait', color: 'rgba(239, 68, 68, 0.4)', stroke: '#ef4444' }, // Red
+        { name: 'system', color: 'rgba(234, 179, 8, 0.4)', stroke: '#eab308' }, // Yellow
+        { name: 'user', color: 'rgba(99, 102, 241, 0.4)', stroke: '#6366f1' }   // Indigo
+      ];
+
+      let currentBase = new Array(len).fill(0);
+      let prevBase = new Array(len).fill(0);
+
+      modes.forEach(mode => {
+        const vals = series[mode.name];
+        if (!vals) return;
+
+        const prevVals = (this.prevData && this.prevData.series) ? this.prevData.series[mode.name] : null;
+        const getPVal = (arr, idx) => (arr && idx < arr.length) ? arr[idx] : 0;
+
         ctx.beginPath();
-    ctx.moveTo(getX(0), getY(values[0]));
+        ctx.moveTo(getX(0), getY(currentBase[0] + vals[0], getPVal(prevBase, 0) + getPVal(prevVals, 0)));
         for (let i = 1; i < len; i++) {
+          ctx.lineTo(getX(i), getY(currentBase[i] + vals[i], getPVal(prevBase, i) + getPVal(prevVals, i)));
+        }
+        ctx.lineTo(getX(len - 1), getY(currentBase[len - 1], getPVal(prevBase, len - 1)));
+        for (let i = len - 1; i >= 0; i--) {
+          ctx.lineTo(getX(i), getY(currentBase[i], getPVal(prevBase, i)));
+        }
+        ctx.closePath();
+        ctx.fillStyle = mode.color;
+        ctx.fill();
+
+        // Stroke
+        ctx.beginPath();
+        ctx.moveTo(getX(0), getY(currentBase[0] + vals[0], getPVal(prevBase, 0) + getPVal(prevVals, 0)));
+        for (let i = 1; i < len; i++) {
+          ctx.lineTo(getX(i), getY(currentBase[i] + vals[i], getPVal(prevBase, i) + getPVal(prevVals, i)));
+        }
+        ctx.strokeStyle = mode.stroke;
+        ctx.lineWidth = 1;
+        ctx.stroke();
+
+        // Update boxes for next series
+        for (let i = 0; i < len; i++) {
+          currentBase[i] += vals[i];
+          if (prevBase) prevBase[i] = (prevBase[i] || 0) + getPVal(prevVals, i);
+        }
+      });
+
+      // Add Legend at bottom right (moved up slightly)
+      ctx.font = '9px sans-serif';
+      ctx.textAlign = 'right';
+      let lx = w - 10;
+      let ly = h - 20; // Increased padding from bottom
+      [...modes].reverse().forEach(m => {
+        ctx.fillStyle = m.stroke;
+        ctx.fillRect(lx - 10, ly - 8, 8, 8);
+        ctx.fillStyle = '#5a6380';
+        ctx.fillText(m.name.charAt(0).toUpperCase() + m.name.slice(1), lx - 15, ly - 1);
+        lx -= 70; // Increased gap for safety
+      });
+
+    } else {
+      const useSimple = len > 100;
+      const prevVals = this.prevData ? this.prevData.values : null;
+      const getPVal = (i) => (prevVals && i < prevVals.length) ? prevVals[i] : 0;
+
+      ctx.beginPath();
+      ctx.moveTo(getX(0), getY(values[0], getPVal(0)));
+      for (let i = 1; i < len; i++) {
+        const currY = getY(values[i], getPVal(i));
+        if (useSimple) {
+          ctx.lineTo(getX(i), currY);
+        } else {
           const prevX = getX(i - 1);
           const currX = getX(i);
-        const prevY = getY(values[i - 1]);
-        const currY = getY(values[i]);
+          const prevY = getY(values[i - 1], getPVal(i - 1));
           const midX = (prevX + currX) / 2;
           ctx.bezierCurveTo(midX, prevY, midX, currY, currX, currY);
         }
+      }
 
       // Stroke
       ctx.strokeStyle = '#6366f1';
@@ -418,6 +687,7 @@ class MetricChart {
       ctx.fillStyle = '#6366f1';
       ctx.fill();
     }
+  }
 
   destroy() {
     window.removeEventListener('resize', this._resize);

public/js/init.js

@@ -4,8 +4,12 @@ document.addEventListener('DOMContentLoaded', () => {
   const userInput = document.getElementById('user');
   const passwordInput = document.getElementById('password');
   const databaseInput = document.getElementById('database');
+  const vHostInput = document.getElementById('vHost');
+  const vPortInput = document.getElementById('vPort');
+  const vPasswordInput = document.getElementById('vPassword');
   
   const btnTest = document.getElementById('btnTest');
+  const btnTestValkey = document.getElementById('btnTestValkey');
   const btnInit = document.getElementById('btnInit');
   const messageBox = document.getElementById('messageBox');
   
@@ -14,7 +18,7 @@ document.addEventListener('DOMContentLoaded', () => {
   
   const promForm = document.getElementById('promForm');
   const initForm = document.getElementById('initForm');
-  const promName = document.getElementById('promName');
+  const promName = document.getElementById('promSourceName');
   const promUrl = document.getElementById('promUrl');
   const promDesc = document.getElementById('promDesc');
   const btnPromTest = document.getElementById('btnPromTest');
@@ -65,6 +69,7 @@ document.addEventListener('DOMContentLoaded', () => {
         promForm.style.display = 'block';
         initHeaderTitle.textContent = '配置 Prometheus';
         initHeaderDesc.textContent = '配置您的第一个 Prometheus 数据源监控连接';
+        if (promName) promName.value = ''; // Ensure it's clear on load
       }
     } catch (err) {
       initForm.style.display = 'block';
@@ -102,6 +107,34 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   });
 
+  btnTestValkey.addEventListener('click', async () => {
+    btnTestValkey.disabled = true;
+    const oldText = btnTestValkey.textContent;
+    btnTestValkey.textContent = '测试中...';
+    try {
+      const res = await fetch('/api/setup/test-valkey', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          host: vHostInput.value,
+          port: vPortInput.value,
+          password: vPasswordInput.value
+        })
+      });
+      const data = await res.json();
+      if (data.success) {
+        showMessage('Valkey 连接成功！');
+      } else {
+        showMessage('Valkey 连接失败: ' + (data.error || '未知错误'), true);
+      }
+    } catch (err) {
+      showMessage('Valkey 请求失败: ' + err.message, true);
+    } finally {
+      btnTestValkey.disabled = false;
+      btnTestValkey.textContent = oldText;
+    }
+  });
+  
   btnInit.addEventListener('click', async () => {
     btnInit.disabled = true;
     const oldText = btnInit.textContent;
@@ -115,7 +148,10 @@ document.addEventListener('DOMContentLoaded', () => {
           port: portInput.value,
           user: userInput.value,
           password: passwordInput.value,
-          database: databaseInput.value
+          database: databaseInput.value,
+          vHost: vHostInput.value,
+          vPort: vPortInput.value,
+          vPassword: vPasswordInput.value
         })
       });
       const data = await res.json();

public/js/utils.js

@@ -28,6 +28,15 @@ function formatBandwidth(bytesPerSec, decimals = 2) {
   return value.toFixed(decimals) + ' ' + sizes[i];
 }
 
+/**
+ * Convert bytes per second to MB/s (numeric string)
+ */
+function toMBps(bytesPerSec, decimals = 2) {
+  if (!bytesPerSec || bytesPerSec === 0) return '0.00';
+  const mbps = bytesPerSec / (1024 * 1024);
+  return mbps.toFixed(decimals);
+}
+
 /**
  * Format percentage
  */
@@ -102,3 +111,17 @@ function animateValue(element, start, end, duration = 600) {
 
   requestAnimationFrame(update);
 }
+
+/**
+ * Debounce function to limit execution frequency
+ */
+function debounce(fn, delay) {
+  let timer = null;
+  return function (...args) {
+    if (timer) clearTimeout(timer);
+    timer = setTimeout(() => {
+      fn.apply(this, args);
+      timer = null;
+    }, delay);
+  };
+}

server/cache.js

@@ -1,14 +1,20 @@
 const Redis = require('ioredis');
 
-const host = process.env.VALKEY_HOST || 'localhost';
-const port = parseInt(process.env.VALKEY_PORT) || 6379;
-const password = process.env.VALKEY_PASSWORD || undefined;
-const db = parseInt(process.env.VALKEY_DB) || 0;
-const ttl = parseInt(process.env.VALKEY_TTL) || 30;
-
 let redis = null;
+let ttl = 30;
 
-try {
+function init() {
+  if (redis) {
+    redis.disconnect();
+  }
+
+  const host = process.env.VALKEY_HOST || 'localhost';
+  const port = parseInt(process.env.VALKEY_PORT) || 6379;
+  const password = process.env.VALKEY_PASSWORD || undefined;
+  const db = parseInt(process.env.VALKEY_DB) || 0;
+  ttl = parseInt(process.env.VALKEY_TTL) || 30;
+
+  try {
     redis = new Redis({
       host,
       port,
@@ -22,11 +28,15 @@ try {
       // Fail silently after one retry, we just won't cache
       console.warn('[Cache] Valkey connection failed, caching disabled:', err.message);
     });
-} catch (err) {
+  } catch (err) {
     console.warn('[Cache] Valkey init failed:', err.message);
+  }
 }
 
+init();
+
 const cache = {
+  init,
   async get(key) {
     if (!redis) return null;
     try {
@@ -53,6 +63,17 @@ const cache = {
     } catch (e) {
       // ignore
     }
+  },
+
+  async checkHealth() {
+    if (!redis) return { status: 'down', error: 'Valkey client not initialized' };
+    try {
+      const result = await redis.ping();
+      if (result === 'PONG') return { status: 'up' };
+      return { status: 'down', error: 'Invalid ping response' };
+    } catch (e) {
+      return { status: 'down', error: e.message };
+    }
   }
 };
 

server/db-integrity-check.js

@@ -1,130 +0,0 @@
-/**
- * Database Integrity Check
- * Runs at startup to ensure all required tables exist.
- * Recreates the database if any tables are missing.
- */
-require('dotenv').config();
-const mysql = require('mysql2/promise');
-const db = require('./db');
-const path = require('path');
-const fs = require('fs');
-
-const REQUIRED_TABLES = [
-  'users',
-  'prometheus_sources',
-  'site_settings',
-  'traffic_stats'
-];
-
-async function checkAndFixDatabase() {
-  // Only run if .env is already configured
-  const envPath = path.join(__dirname, '..', '.env');
-  if (!fs.existsSync(envPath)) return;
-
-  const dbHost = process.env.MYSQL_HOST || 'localhost';
-  const dbUser = process.env.MYSQL_USER || 'root';
-  const dbPass = process.env.MYSQL_PASSWORD || '';
-  const dbPort = parseInt(process.env.MYSQL_PORT) || 3306;
-  const dbName = process.env.MYSQL_DATABASE || 'display_wall';
-
-  try {
-    // Check tables
-    const [rows] = await db.query("SHOW TABLES");
-    const existingTables = rows.map(r => Object.values(r)[0]);
-    
-    const missingTables = REQUIRED_TABLES.filter(t => !existingTables.includes(t));
-    
-    if (missingTables.length > 0) {
-      console.log(`[Database Integrity] ⚠️ Missing tables: ${missingTables.join(', ')}`);
-      await recreateDatabase(dbHost, dbPort, dbUser, dbPass, dbName);
-    } else {
-      // console.log(`[Database Integrity] ✅ All tables accounted for.`);
-    }
-  } catch (err) {
-    if (err.code === 'ER_BAD_DB_ERROR') {
-      console.log(`[Database Integrity] ⚠️ Database "${dbName}" does not exist.`);
-      await recreateDatabase(dbHost, dbPort, dbUser, dbPass, dbName);
-    } else {
-      console.error('[Database Integrity] ❌ Error checking integrity:', err.message);
-    }
-  }
-}
-
-async function recreateDatabase(host, port, user, password, dbName) {
-  console.log(`[Database Integrity] 🔄 Re-initializing database "${dbName}"...`);
-  
-  let connection;
-  try {
-    connection = await mysql.createConnection({ host, port, user, password });
-
-    // Drop and create database
-    await connection.query(`DROP DATABASE IF EXISTS \`${dbName}\``);
-    await connection.query(`CREATE DATABASE \`${dbName}\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci`);
-    await connection.query(`USE \`${dbName}\``);
-
-    // Recreate all tables
-    console.log('  - Creating table "users"...');
-    await connection.query(`
-      CREATE TABLE IF NOT EXISTS users (
-        id INT AUTO_INCREMENT PRIMARY KEY,
-        username VARCHAR(255) NOT NULL UNIQUE,
-        password VARCHAR(255) NOT NULL,
-        salt VARCHAR(255) NOT NULL,
-        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
-      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-    `);
-
-    console.log('  - Creating table "prometheus_sources"...');
-    await connection.query(`
-      CREATE TABLE IF NOT EXISTS prometheus_sources (
-        id INT AUTO_INCREMENT PRIMARY KEY,
-        name VARCHAR(255) NOT NULL,
-        url VARCHAR(500) NOT NULL,
-        description TEXT,
-        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
-      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-    `);
-
-    console.log('  - Creating table "site_settings"...');
-    await connection.query(`
-      CREATE TABLE IF NOT EXISTS site_settings (
-        id INT PRIMARY KEY DEFAULT 1,
-        page_name VARCHAR(255) DEFAULT '数据可视化展示大屏',
-        title VARCHAR(255) DEFAULT '数据可视化展示大屏',
-        logo_url TEXT,
-        default_theme VARCHAR(20) DEFAULT 'dark',
-        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
-      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-    `);
-    await connection.query(`
-      INSERT INTO site_settings (id, page_name, title, default_theme) 
-      VALUES (1, '数据可视化展示大屏', '数据可视化展示大屏', 'dark')
-    `);
-
-    console.log('  - Creating table "traffic_stats"...');
-    await connection.query(`
-      CREATE TABLE IF NOT EXISTS traffic_stats (
-        id INT AUTO_INCREMENT PRIMARY KEY,
-        rx_bytes BIGINT UNSIGNED DEFAULT 0,
-        tx_bytes BIGINT UNSIGNED DEFAULT 0,
-        rx_bandwidth DOUBLE DEFAULT 0,
-        tx_bandwidth DOUBLE DEFAULT 0,
-        timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-        UNIQUE INDEX (timestamp)
-      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-    `);
-
-    console.log(`[Database Integrity] ✅ Re-initialization complete.`);
-    
-    // Refresh db pool in the main app context
-    db.initPool();
-
-  } catch (err) {
-    console.error('[Database Integrity] ❌ Critical failure during re-initialization:', err.message);
-  } finally {
-    if (connection) await connection.end();
-  }
-}
-
-module.exports = checkAndFixDatabase;

server/db-schema-check.js

@@ -0,0 +1,238 @@
+/**
+ * Database schema check
+ * Ensures required tables and columns exist at startup.
+ */
+const path = require('path');
+require('dotenv').config({ path: path.join(__dirname, '..', '.env') });
+const db = require('./db');
+const fs = require('fs');
+
+const SCHEMA = {
+  users: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS users (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        username VARCHAR(255) NOT NULL UNIQUE,
+        password VARCHAR(255) NOT NULL,
+        salt VARCHAR(255) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    columns: [
+      { name: 'username', sql: "ALTER TABLE users ADD COLUMN username VARCHAR(255) NOT NULL UNIQUE AFTER id" },
+      { name: 'password', sql: "ALTER TABLE users ADD COLUMN password VARCHAR(255) NOT NULL AFTER username" },
+      { name: 'salt', sql: "ALTER TABLE users ADD COLUMN salt VARCHAR(255) NOT NULL AFTER password" }
+    ]
+  },
+  prometheus_sources: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS prometheus_sources (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        name VARCHAR(255) NOT NULL,
+        url VARCHAR(500) NOT NULL,
+        description TEXT,
+        is_server_source TINYINT(1) DEFAULT 1,
+        is_overview_source TINYINT(1) DEFAULT 1,
+        is_detail_source TINYINT(1) DEFAULT 1,
+        type VARCHAR(50) DEFAULT 'prometheus',
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    columns: [
+      { name: 'name', sql: "ALTER TABLE prometheus_sources ADD COLUMN name VARCHAR(255) NOT NULL AFTER id" },
+      { name: 'url', sql: "ALTER TABLE prometheus_sources ADD COLUMN url VARCHAR(500) NOT NULL AFTER name" },
+      { name: 'description', sql: "ALTER TABLE prometheus_sources ADD COLUMN description TEXT AFTER url" },
+      { name: 'is_server_source', sql: "ALTER TABLE prometheus_sources ADD COLUMN is_server_source TINYINT(1) DEFAULT 1 AFTER description" },
+      { name: 'is_overview_source', sql: "ALTER TABLE prometheus_sources ADD COLUMN is_overview_source TINYINT(1) DEFAULT 1 AFTER is_server_source" },
+      { name: 'is_detail_source', sql: "ALTER TABLE prometheus_sources ADD COLUMN is_detail_source TINYINT(1) DEFAULT 1 AFTER is_overview_source" },
+      { name: 'type', sql: "ALTER TABLE prometheus_sources ADD COLUMN type VARCHAR(50) DEFAULT 'prometheus' AFTER is_detail_source" }
+    ]
+  },
+  site_settings: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS site_settings (
+        id INT PRIMARY KEY DEFAULT 1,
+        page_name VARCHAR(255) DEFAULT '数据可视化展示大屏',
+        show_page_name TINYINT(1) DEFAULT 1,
+        title VARCHAR(255) DEFAULT '数据可视化展示大屏',
+        logo_url TEXT,
+        logo_url_dark TEXT,
+        favicon_url TEXT,
+        default_theme VARCHAR(20) DEFAULT 'dark',
+        show_95_bandwidth TINYINT(1) DEFAULT 0,
+        p95_type VARCHAR(20) DEFAULT 'tx',
+        require_login_for_server_details TINYINT(1) DEFAULT 1,
+        blackbox_source_id INT,
+        latency_source VARCHAR(100),
+        latency_dest VARCHAR(100),
+        latency_target VARCHAR(255),
+        icp_filing VARCHAR(255),
+        ps_filing VARCHAR(255),
+        show_server_ip TINYINT(1) DEFAULT 0,
+        ip_metric_name VARCHAR(100) DEFAULT NULL,
+        ip_label_name VARCHAR(100) DEFAULT 'address',
+        custom_metrics JSON DEFAULT NULL,
+        cdn_url VARCHAR(500) DEFAULT NULL,
+        prometheus_cache_ttl INT DEFAULT 30,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    seedSql: `
+      INSERT IGNORE INTO site_settings (
+        id, page_name, show_page_name, title, default_theme, show_95_bandwidth, p95_type, require_login_for_server_details, prometheus_cache_ttl
+      ) VALUES (
+        1, '数据可视化展示大屏', 1, '数据可视化展示大屏', 'dark', 0, 'tx', 1, 30
+      )
+    `,
+    columns: [
+      { name: 'page_name', sql: "ALTER TABLE site_settings ADD COLUMN page_name VARCHAR(255) DEFAULT '数据可视化展示大屏' AFTER id" },
+      { name: 'show_page_name', sql: "ALTER TABLE site_settings ADD COLUMN show_page_name TINYINT(1) DEFAULT 1 AFTER page_name" },
+      { name: 'title', sql: "ALTER TABLE site_settings ADD COLUMN title VARCHAR(255) DEFAULT '数据可视化展示大屏' AFTER show_page_name" },
+      { name: 'logo_url', sql: "ALTER TABLE site_settings ADD COLUMN logo_url TEXT AFTER title" },
+      { name: 'logo_url_dark', sql: "ALTER TABLE site_settings ADD COLUMN logo_url_dark TEXT AFTER logo_url" },
+      { name: 'favicon_url', sql: "ALTER TABLE site_settings ADD COLUMN favicon_url TEXT AFTER logo_url_dark" },
+      { name: 'default_theme', sql: "ALTER TABLE site_settings ADD COLUMN default_theme VARCHAR(20) DEFAULT 'dark' AFTER favicon_url" },
+      { name: 'show_95_bandwidth', sql: "ALTER TABLE site_settings ADD COLUMN show_95_bandwidth TINYINT(1) DEFAULT 0 AFTER default_theme" },
+      { name: 'p95_type', sql: "ALTER TABLE site_settings ADD COLUMN p95_type VARCHAR(20) DEFAULT 'tx' AFTER show_95_bandwidth" },
+      { name: 'require_login_for_server_details', sql: "ALTER TABLE site_settings ADD COLUMN require_login_for_server_details TINYINT(1) DEFAULT 1 AFTER p95_type" },
+      { name: 'blackbox_source_id', sql: "ALTER TABLE site_settings ADD COLUMN blackbox_source_id INT AFTER require_login_for_server_details" },
+      { name: 'latency_source', sql: "ALTER TABLE site_settings ADD COLUMN latency_source VARCHAR(100) AFTER blackbox_source_id" },
+      { name: 'latency_dest', sql: "ALTER TABLE site_settings ADD COLUMN latency_dest VARCHAR(100) AFTER latency_source" },
+      { name: 'latency_target', sql: "ALTER TABLE site_settings ADD COLUMN latency_target VARCHAR(255) AFTER latency_dest" },
+      { name: 'icp_filing', sql: "ALTER TABLE site_settings ADD COLUMN icp_filing VARCHAR(255) AFTER latency_target" },
+      { name: 'ps_filing', sql: "ALTER TABLE site_settings ADD COLUMN ps_filing VARCHAR(255) AFTER icp_filing" },
+      { name: 'show_server_ip', sql: "ALTER TABLE site_settings ADD COLUMN show_server_ip TINYINT(1) DEFAULT 0 AFTER ps_filing" },
+      { name: 'ip_metric_name', sql: "ALTER TABLE site_settings ADD COLUMN ip_metric_name VARCHAR(100) DEFAULT NULL AFTER show_server_ip" },
+      { name: 'ip_label_name', sql: "ALTER TABLE site_settings ADD COLUMN ip_label_name VARCHAR(100) DEFAULT 'address' AFTER ip_metric_name" },
+      { name: 'custom_metrics', sql: "ALTER TABLE site_settings ADD COLUMN custom_metrics JSON DEFAULT NULL AFTER ip_label_name" },
+      { name: 'cdn_url', sql: "ALTER TABLE site_settings ADD COLUMN cdn_url VARCHAR(500) DEFAULT NULL AFTER custom_metrics" },
+      { name: 'prometheus_cache_ttl', sql: "ALTER TABLE site_settings ADD COLUMN prometheus_cache_ttl INT DEFAULT 30 AFTER cdn_url" }
+    ]
+  },
+  traffic_stats: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS traffic_stats (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        rx_bytes BIGINT UNSIGNED DEFAULT 0,
+        tx_bytes BIGINT UNSIGNED DEFAULT 0,
+        rx_bandwidth DOUBLE DEFAULT 0,
+        tx_bandwidth DOUBLE DEFAULT 0,
+        timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        UNIQUE INDEX (timestamp)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    columns: [
+      { name: 'rx_bytes', sql: "ALTER TABLE traffic_stats ADD COLUMN rx_bytes BIGINT UNSIGNED DEFAULT 0 AFTER id" },
+      { name: 'tx_bytes', sql: "ALTER TABLE traffic_stats ADD COLUMN tx_bytes BIGINT UNSIGNED DEFAULT 0 AFTER rx_bytes" },
+      { name: 'rx_bandwidth', sql: "ALTER TABLE traffic_stats ADD COLUMN rx_bandwidth DOUBLE DEFAULT 0 AFTER tx_bytes" },
+      { name: 'tx_bandwidth', sql: "ALTER TABLE traffic_stats ADD COLUMN tx_bandwidth DOUBLE DEFAULT 0 AFTER rx_bandwidth" }
+    ]
+  },
+  server_locations: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS server_locations (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        ip VARCHAR(255) NOT NULL UNIQUE,
+        country CHAR(2),
+        country_name VARCHAR(100),
+        region VARCHAR(100),
+        city VARCHAR(100),
+        latitude DOUBLE,
+        longitude DOUBLE,
+        last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    columns: [
+      { name: 'ip', sql: "ALTER TABLE server_locations ADD COLUMN ip VARCHAR(255) NOT NULL UNIQUE AFTER id" },
+      { name: 'country', sql: "ALTER TABLE server_locations ADD COLUMN country CHAR(2) AFTER ip" },
+      { name: 'country_name', sql: "ALTER TABLE server_locations ADD COLUMN country_name VARCHAR(100) AFTER country" },
+      { name: 'region', sql: "ALTER TABLE server_locations ADD COLUMN region VARCHAR(100) AFTER country_name" },
+      { name: 'city', sql: "ALTER TABLE server_locations ADD COLUMN city VARCHAR(100) AFTER region" },
+      { name: 'latitude', sql: "ALTER TABLE server_locations ADD COLUMN latitude DOUBLE AFTER city" },
+      { name: 'longitude', sql: "ALTER TABLE server_locations ADD COLUMN longitude DOUBLE AFTER latitude" }
+    ]
+  },
+  latency_routes: {
+    createSql: `
+      CREATE TABLE IF NOT EXISTS latency_routes (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        source_id INT NOT NULL,
+        latency_source VARCHAR(100) NOT NULL,
+        latency_dest VARCHAR(100) NOT NULL,
+        latency_target VARCHAR(255) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    `,
+    columns: [
+      { name: 'source_id', sql: "ALTER TABLE latency_routes ADD COLUMN source_id INT NOT NULL AFTER id" },
+      { name: 'latency_source', sql: "ALTER TABLE latency_routes ADD COLUMN latency_source VARCHAR(100) NOT NULL AFTER source_id" },
+      { name: 'latency_dest', sql: "ALTER TABLE latency_routes ADD COLUMN latency_dest VARCHAR(100) NOT NULL AFTER latency_source" },
+      { name: 'latency_target', sql: "ALTER TABLE latency_routes ADD COLUMN latency_target VARCHAR(255) NOT NULL AFTER latency_dest" }
+    ]
+  }
+};
+
+async function ensureTable(tableName, tableSchema) {
+  try {
+    // 1. Ensure table exists
+    await db.query(tableSchema.createSql);
+    
+    // 2. Check columns
+    const [columns] = await db.query(`SHOW COLUMNS FROM \`${tableName}\``);
+    const existingColumns = new Set(columns.map((column) => column.Field));
+    
+    console.log(`[Database Integrity] Table '${tableName}' verified (${columns.length} columns)`);
+
+    for (const column of tableSchema.columns || []) {
+      if (!existingColumns.has(column.name)) {
+        console.log(`[Database Integrity] Missing column '${column.name}' in '${tableName}'. Adding it...`);
+        await db.query(column.sql);
+        console.log(`[Database Integrity] Column '${column.name}' added to '${tableName}'.`);
+      }
+    }
+
+    // 3. Seed data
+    if (tableSchema.seedSql) {
+      const [rows] = await db.query(`SELECT count(*) as count FROM \`${tableName}\``);
+      if (rows[0].count === 0) {
+        console.log(`[Database Integrity] Table '${tableName}' is empty. Seeding initial data...`);
+        await db.query(tableSchema.seedSql);
+      }
+    }
+  } catch (err) {
+    console.error(`[Database Integrity] Error ensuring table '${tableName}':`, err.message);
+    throw err;
+  }
+}
+
+async function db_migrate() {
+  console.log('[Database Integrity] Starting comprehensive database audit...');
+  
+  // Try to check if we can even connect
+  try {
+    const health = await db.checkHealth();
+    if (health.status !== 'up') {
+      console.warn(`[Database Integrity] initial health check failed: ${health.error}`);
+      // If we can't connect, maybe the DB itself doesn't exist?
+      // For now, we rely on the pool to handle connection retries/errors.
+    }
+  } catch (e) {
+    // Ignore health check errors, let ensureTable handle the primary queries
+  }
+
+  try {
+    let tablesChecked = 0;
+    for (const [tableName, tableSchema] of Object.entries(SCHEMA)) {
+      await ensureTable(tableName, tableSchema);
+      tablesChecked++;
+    }
+    console.log(`[Database Integrity] Audit complete. ${tablesChecked} tables verified and healthy.`);
+    return true;
+  } catch (err) {
+    console.error('[Database Integrity] ❌ Audit failed:', err.message);
+    throw err;
+  }
+}
+
+module.exports = db_migrate;

server/db.js

@@ -18,9 +18,20 @@ function initPool() {
   });
 }
 
+async function checkHealth() {
+  try {
+    if (!pool) return { status: 'down', error: 'Database pool not initialized' };
+    await pool.query('SELECT 1');
+    return { status: 'up' };
+  } catch (err) {
+    return { status: 'down', error: err.message };
+  }
+}
+
 initPool();
 
 module.exports = {
   query: (...args) => pool.query(...args),
-  initPool
+  initPool,
+  checkHealth
 };

server/geo-service.js

@@ -0,0 +1,204 @@
+const axios = require('axios');
+const net = require('net');
+const dns = require('dns').promises;
+const db = require('./db');
+
+/**
+ * Geo Location Service
+ * Resolves IP addresses to geographical coordinates and country info.
+ * Caches results in the database to minimize API calls.
+ */
+
+const ipInfoToken = process.env.IPINFO_TOKEN;
+const enableExternalGeoLookup = process.env.ENABLE_EXTERNAL_GEO_LOOKUP === 'true';
+
+/**
+ * Normalizes geo data for consistent display
+ */
+function normalizeGeo(geo) {
+  if (!geo) return geo;
+
+  // Custom normalization for TW to "Taipei, China" and JP to "Tokyo"
+  const country = (geo.country || geo.country_code || '').toUpperCase();
+  if (country === 'TW') {
+    return {
+      ...geo,
+      city: 'Taipei',
+      country: 'TW',
+      country_name: 'China',
+      // Force Taipei coordinates for consistent 2D plotting
+      loc: '25.0330,121.5654',
+      latitude: 25.0330,
+      longitude: 121.5654
+    };
+  } else if (country === 'JP') {
+    return {
+      ...geo,
+      city: 'Tokyo',
+      country: 'JP',
+      country_name: 'Japan',
+      // Force Tokyo coordinates for consistent 2D plotting
+      loc: '35.6895,139.6917',
+      latitude: 35.6895,
+      longitude: 139.6917
+    };
+  }
+  return geo;
+}
+
+async function getLocation(target) {
+  // Normalize target (strip port if present, handle IPv6 brackets)
+  let cleanTarget = target;
+  if (cleanTarget.startsWith('[')) {
+    const closingBracket = cleanTarget.indexOf(']');
+    if (closingBracket !== -1) {
+      cleanTarget = cleanTarget.substring(1, closingBracket);
+    }
+  } else {
+    const parts = cleanTarget.split(':');
+    if (parts.length === 2) {
+      cleanTarget = parts[0];
+    }
+  }
+
+  // 1. Check if we already have this IP/Domain in DB (FASTEST)
+  try {
+    const [rows] = await db.query('SELECT * FROM server_locations WHERE ip = ?', [cleanTarget]);
+    if (rows.length > 0) {
+      const data = rows[0];
+      const age = Date.now() - new Date(data.last_updated).getTime();
+      if (age < 30 * 24 * 60 * 60 * 1000) {
+        return normalizeGeo(data);
+      }
+    }
+  } catch (err) {
+    // console.error(`[Geo Service] DB check failed for ${cleanTarget}`);
+  }
+
+  // 2. Resolve domain to IP if needed
+  let cleanIp = cleanTarget;
+  if (net.isIP(cleanTarget) === 0) {
+    try {
+      const lookup = await dns.lookup(cleanTarget);
+      cleanIp = lookup.address;
+      
+      // Secondary DB check with resolved IP
+      const [rows] = await db.query('SELECT * FROM server_locations WHERE ip = ?', [cleanIp]);
+      if (rows.length > 0) {
+        const data = rows[0];
+        // Cache the domain mapping to avoid future DNS lookups
+        if (cleanTarget !== cleanIp) {
+          try {
+            await db.query(`
+              INSERT INTO server_locations (ip, country, country_name, region, city, latitude, longitude)
+              VALUES (?, ?, ?, ?, ?, ?, ?)
+              ON DUPLICATE KEY UPDATE last_updated = CURRENT_TIMESTAMP
+            `, [cleanTarget, data.country, data.country_name, data.region, data.city, data.latitude, data.longitude]);
+          } catch(e) {}
+        }
+        return normalizeGeo(data);
+      }
+    } catch (err) {
+      // Quiet DNS failure for tokens (legacy bug mitigation)
+      if (!/^[0-9a-f]{16}$/i.test(cleanTarget)) {
+        console.error(`[Geo Service] DNS resolution failed for ${cleanTarget}:`, err.message);
+      }
+      return null;
+    }
+  }
+
+  // 3. Skip local/reserved IPs
+  if (isLocalIp(cleanIp)) {
+    return null;
+  }
+
+  // 4. Resolve via ipinfo.io (LAST RESORT)
+  if (!enableExternalGeoLookup) {
+    return null;
+  }
+
+  try {
+    console.log(`[Geo Service] API lookup (ipinfo.io) for: ${cleanIp}`);
+    const url = `https://ipinfo.io/${cleanIp}/json${ipInfoToken ? `?token=${ipInfoToken}` : ''}`;
+    const response = await axios.get(url, { timeout: 5000 });
+    const geo = normalizeGeo(response.data);
+
+    if (geo && geo.loc) {
+      const [lat, lon] = geo.loc.split(',').map(Number);
+      const locationData = {
+        ip: cleanIp,
+        country: geo.country,
+        country_name: geo.country_name || geo.country, // ipinfo might not have country_name in basic response
+        region: geo.region,
+        city: geo.city,
+        latitude: lat,
+        longitude: lon
+      };
+
+      // Save to DB
+      await db.query(`
+        INSERT INTO server_locations (ip, country, country_name, region, city, latitude, longitude)
+        VALUES (?, ?, ?, ?, ?, ?, ?)
+        ON DUPLICATE KEY UPDATE
+          country = VALUES(country),
+          country_name = VALUES(country_name),
+          region = VALUES(region),
+          city = VALUES(city),
+          latitude = VALUES(latitude),
+          longitude = VALUES(longitude)
+      `, [
+        locationData.ip,
+        locationData.country,
+        locationData.country_name,
+        locationData.region,
+        locationData.city,
+        locationData.latitude,
+        locationData.longitude
+      ]);
+
+      // Cache the domain target as well if it differs from the resolved IP
+      if (cleanTarget !== cleanIp) {
+        await db.query(`
+          INSERT INTO server_locations (ip, country, country_name, region, city, latitude, longitude)
+          VALUES (?, ?, ?, ?, ?, ?, ?)
+          ON DUPLICATE KEY UPDATE
+            country = VALUES(country),
+            country_name = VALUES(country_name),
+            region = VALUES(region),
+            city = VALUES(city),
+            latitude = VALUES(latitude),
+            longitude = VALUES(longitude)
+        `, [
+          cleanTarget,
+          locationData.country,
+          locationData.country_name,
+          locationData.region,
+          locationData.city,
+          locationData.latitude,
+          locationData.longitude
+        ]);
+      }
+
+      return locationData;
+    }
+  } catch (err) {
+    console.error(`[Geo Service] Error resolving IP ${cleanIp}:`, err.message);
+  }
+
+  return null;
+}
+
+function isLocalIp(ip) {
+  if (ip === 'localhost' || ip === '127.0.0.1' || ip === '::1') return true;
+
+  // RFC1918 private addresses
+  const p1 = /^10\./;
+  const p2 = /^172\.(1[6-9]|2[0-9]|3[0-1])\./;
+  const p3 = /^192\.168\./;
+
+  return p1.test(ip) || p2.test(ip) || p3.test(ip);
+}
+
+module.exports = {
+  getLocation
+};

server/init-db.js

@@ -1,74 +1,40 @@
-/**
- * Database Initialization Script
- * Run: npm run init-db
- * Creates the required MySQL database and tables.
- */
-require('dotenv').config();
+const path = require('path');
+require('dotenv').config({ path: path.join(__dirname, '..', '.env') });
 const mysql = require('mysql2/promise');
+const db_migrate = require('./db-schema-check');
+const db = require('./db');
 
 async function initDatabase() {
-  const connection = await mysql.createConnection({
-    host: process.env.MYSQL_HOST || 'localhost',
-    port: parseInt(process.env.MYSQL_PORT) || 3306,
-    user: process.env.MYSQL_USER || 'root',
-    password: process.env.MYSQL_PASSWORD || ''
-  });
-
+  const host = process.env.MYSQL_HOST || 'localhost';
+  const port = parseInt(process.env.MYSQL_PORT) || 3306;
+  const user = process.env.MYSQL_USER || 'root';
+  const password = process.env.MYSQL_PASSWORD || '';
   const dbName = process.env.MYSQL_DATABASE || 'display_wall';
 
-  console.log('🔧 Initializing database...\n');
+  // 1. Create connection without database selected to create the DB itself
+  const connection = await mysql.createConnection({
+    host,
+    port,
+    user,
+    password
+  });
+
+  console.log('🔧 Initializing database environment...\n');
 
   // Create database
   await connection.query(`CREATE DATABASE IF NOT EXISTS \`${dbName}\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci`);
   console.log(`  ✅ Database "${dbName}" ready`);
+  await connection.end();
 
-  await connection.query(`USE \`${dbName}\``);
+  // 2. Re-initialize the standard pool so it can see the new DB
+  db.initPool();
 
-  // Create users table
-  await connection.query(`
-    CREATE TABLE IF NOT EXISTS users (
-      id INT AUTO_INCREMENT PRIMARY KEY,
-      username VARCHAR(255) NOT NULL UNIQUE,
-      password VARCHAR(255) NOT NULL,
-      salt VARCHAR(255) NOT NULL,
-      created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
-    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-  `);
-  console.log('  ✅ Table "users" ready');
-
-  // Create prometheus_sources table
-  await connection.query(`
-      CREATE TABLE IF NOT EXISTS prometheus_sources (
-        id INT AUTO_INCREMENT PRIMARY KEY,
-        name VARCHAR(255) NOT NULL,
-        url VARCHAR(500) NOT NULL,
-        description TEXT,
-        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
-      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-  `);
-  console.log('  ✅ Table "prometheus_sources" ready');
-
-  // Create site_settings table
-  await connection.query(`
-    CREATE TABLE IF NOT EXISTS site_settings (
-      id INT PRIMARY KEY DEFAULT 1,
-      page_name VARCHAR(255) DEFAULT '数据可视化展示大屏',
-      title VARCHAR(255) DEFAULT '数据可视化展示大屏',
-      logo_url TEXT,
-      default_theme VARCHAR(20) DEFAULT 'dark',
-      updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
-    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-  `);
-  // Insert default settings if not exists
-  await connection.query(`
-    INSERT IGNORE INTO site_settings (id, page_name, title, default_theme) 
-    VALUES (1, '数据可视化展示大屏', '数据可视化展示大屏', 'dark')
-  `);
-  console.log('  ✅ Table "site_settings" ready');
+  // 3. Use the centralized schema tool to create/fix all tables
+  console.log('  📦 Initializing tables using schema-check tool...');
+  await db_migrate();
+  console.log('  ✅ Tables and columns ready');
 
   console.log('\n🎉 Database initialization complete!\n');
-  await connection.end();
 }
 
 initDatabase().catch(err => {

server/latency-service.js

@@ -0,0 +1,134 @@
+const axios = require('axios');
+const cache = require('./cache');
+const db = require('./db');
+
+const POLL_INTERVAL = 10000; // 10 seconds
+
+async function pollLatency() {
+    try {
+        const [routes] = await db.query(`
+            SELECT r.*, s.url 
+            FROM latency_routes r 
+            JOIN prometheus_sources s ON r.source_id = s.id
+            WHERE s.type = 'blackbox'
+        `);
+
+        if (routes.length === 0) return;
+
+        // Poll each route
+        await Promise.allSettled(routes.map(async (route) => {
+            try {
+                // Blackbox exporter probe URL
+                // We assume ICMP module for now. If target is a URL, maybe use http_2xx
+                let module = 'icmp';
+                let target = route.latency_target;
+                
+                if (target.startsWith('http://') || target.startsWith('https://')) {
+                    module = 'http_2xx';
+                }
+
+                const probeUrl = `${route.url.replace(/\/+$/, '')}/probe?module=${module}&target=${encodeURIComponent(target)}`;
+                
+                const startTime = Date.now();
+                const response = await axios.get(probeUrl, { 
+                    timeout: 5000,
+                    responseType: 'text',
+                    validateStatus: false
+                });
+
+                if (typeof response.data !== 'string') {
+                    throw new Error('Response data is not a string');
+                }
+
+                const lines = response.data.split('\n').map(l => l.trim()).filter(l => l && !l.startsWith('#'));
+                
+                // 1. Check if the probe was successful
+                let isProbeSuccess = false;
+                for (const line of lines) {
+                    if (/^probe_success(\{.*\})?\s+1/.test(line)) {
+                        isProbeSuccess = true;
+                        break;
+                    }
+                }
+
+                // 2. Extract latency from priority metrics
+                const targetMetrics = [
+                    'probe_icmp_duration_seconds', 
+                    'probe_http_duration_seconds', 
+                    'probe_duration_seconds'
+                ];
+
+                let foundLatency = null;
+                for (const metricName of targetMetrics) {
+                    let bestLine = null;
+                    
+                    // First pass: look for phase="rtt" which is the most accurate "ping"
+                    for (const line of lines) {
+                        if (line.startsWith(metricName) && line.includes('phase="rtt"')) {
+                            bestLine = line;
+                            break;
+                        }
+                    }
+                    
+                    // Second pass: if no rtt phase, look for a line without phases (legacy format) or just the first line
+                    if (!bestLine) {
+                        for (const line of lines) {
+                            if (line.startsWith(metricName)) {
+                                // Prefer lines without {} if possible, otherwise take the first one
+                                if (!line.includes('{')) {
+                                    bestLine = line;
+                                    break;
+                                }
+                                if (!bestLine) bestLine = line;
+                            }
+                        }
+                    }
+
+                    if (bestLine) {
+                        // Regex to capture the number, including scientific notation
+                        const regex = new RegExp(`^${metricName}(?:\\{[^}]*\\})?\\s+([\\d.eE+-]+)`);
+                        const match = bestLine.match(regex);
+                        
+                        if (match) {
+                            const val = parseFloat(match[1]);
+                            if (!isNaN(val)) {
+                                foundLatency = val * 1000; // convert to ms
+                                break; 
+                            }
+                        }
+                    }
+                }
+
+                // 3. Final decision
+                // If it's a success, use found latency. If success=0 or missing, handle carefully.
+                let latency;
+                if (isProbeSuccess && foundLatency !== null) {
+                    latency = foundLatency;
+                } else {
+                    // If probe failed or metrics missing, do not show 0, show null (Measurement in progress/Error)
+                    latency = null;
+                }
+
+                // Save to Valkey
+                await cache.set(`latency:route:${route.id}`, latency, 60);
+            } catch (err) {
+                await cache.set(`latency:route:${route.id}`, null, 60);
+            }
+        }));
+    } catch (err) {
+        console.error('[Latency] Service error:', err.message);
+    }
+}
+
+let intervalId = null;
+
+function start() {
+    if (intervalId) clearInterval(intervalId);
+    pollLatency(); // initial run
+    intervalId = setInterval(pollLatency, POLL_INTERVAL);
+    console.log('[Latency] Background service started (polling Blackbox Exporter directly)');
+}
+
+module.exports = {
+    start
+};

server/prometheus-service.js

@@ -1,12 +1,48 @@
 const axios = require('axios');
 const http = require('http');
 const https = require('https');
+const cache = require('./cache');
+const crypto = require('crypto');
 
 const QUERY_TIMEOUT = 10000;
 
-// Reusable agents to handle potential redirect issues and protocol mismatches
+function getCacheKey(type, baseUrl, expr, extra = '') {
+  return `prom_${type}:${crypto.createHash('md5').update(`${baseUrl}:${expr}:${extra}`).digest('hex')}`;
+}
+
 const httpAgent = new http.Agent({ keepAlive: true });
-const httpsAgent = new https.Agent({ keepAlive: true, rejectUnauthorized: false });
+const httpsAgent = new https.Agent({ keepAlive: true });
+
+const serverIdMap = new Map(); // token -> { instance, job, source, lastSeen }
+
+function getSecret() {
+  // Use the env variable populated by index.js initialization
+  return process.env.APP_SECRET || 'fallback-secret-for-safety';
+}
+
+// Periodic cleanup of serverIdMap to prevent infinite growth
+setInterval(() => {
+  const now = Date.now();
+  const TTL = 24 * 60 * 60 * 1000; // 24 hours
+  for (const [token, data] of serverIdMap.entries()) {
+    if (now - (data.lastSeen || 0) > TTL) {
+      serverIdMap.delete(token);
+    }
+  }
+}, 3600000); // Once per hour
+
+function getServerToken(instance, job, source) {
+  const hash = crypto.createHmac('sha256', getSecret())
+    .update(`${instance}:${job}:${source}`)
+    .digest('hex')
+    .substring(0, 16);
+  
+  // Update lastSeen timestamp
+  const data = serverIdMap.get(hash);
+  if (data) data.lastSeen = Date.now();
+  
+  return hash;
+}
 
 /**
  * Normalize URL and ensure protocol
@@ -36,12 +72,12 @@ function createClient(baseUrl) {
 /**
  * Test Prometheus connection
  */
-async function testConnection(url) {
+async function testConnection(url, customTimeout = null) {
   const normalized = normalizeUrl(url);
   try {
     // Using native fetch to avoid follow-redirects/axios "protocol mismatch" issues in some Node environments
     const controller = new AbortController();
-    const timer = setTimeout(() => controller.abort(), QUERY_TIMEOUT);
+    const timer = setTimeout(() => controller.abort(), customTimeout || QUERY_TIMEOUT);
 
     // Node native fetch - handles http/https automatically
     const res = await fetch(`${normalized}/api/v1/status/buildinfo`, {
@@ -98,6 +134,38 @@ async function query(baseUrl, expr) {
   }
 }
 
+/**
+ * Get all targets from Prometheus
+ */
+async function getTargets(baseUrl) {
+  const url = normalizeUrl(baseUrl);
+  try {
+    const controller = new AbortController();
+    const timer = setTimeout(() => controller.abort(), QUERY_TIMEOUT);
+
+    const res = await fetch(`${url}/api/v1/targets`, {
+      signal: controller.signal
+    });
+
+    clearTimeout(timer);
+
+    if (!res.ok) {
+      throw new Error(`Prometheus returned HTTP ${res.status}`);
+    }
+
+    const data = await res.json();
+    if (data.status !== 'success') {
+      throw new Error(`Prometheus targets fetch failed: ${data.error || 'unknown error'}`);
+    }
+    return data.data.activeTargets || [];
+  } catch (err) {
+    if (err.name === 'AbortError') {
+      throw new Error('Prometheus targets fetch timed out');
+    }
+    throw err;
+  }
+}
+
 /**
  * Execute a Prometheus range query
  */
@@ -133,9 +201,6 @@ async function queryRange(baseUrl, expr, start, end, step) {
 
 
 
-/**
- * Get overview metrics from a single Prometheus source
- */
 async function getOverviewMetrics(url, sourceName) {
   // Run all queries in parallel
   const [
@@ -147,9 +212,11 @@ async function getOverviewMetrics(url, sourceName) {
     diskFreeResult,
     netRxResult,
     netTxResult,
-    traffic24hRxResult,
-    traffic24hTxResult,
-    upResult
+    netRx24hResult,
+    netTx24hResult,
+    targetsResult,
+    conntrackEntriesResult,
+    conntrackLimitResult
   ] = await Promise.all([
     // CPU usage per instance: 1 - avg idle
     query(url, '100 - (avg by (instance, job) (rate(node_cpu_seconds_total{mode="idle"}[1m])) * 100)').catch(() => []),
@@ -159,31 +226,47 @@ async function getOverviewMetrics(url, sourceName) {
     query(url, 'node_memory_MemTotal_bytes').catch(() => []),
     // Memory available per instance
     query(url, 'node_memory_MemAvailable_bytes').catch(() => []),
-    // Disk total per instance (root filesystem + /data)
-    query(url, 'sum by (instance, job) (node_filesystem_size_bytes{mountpoint=~"/|/data",fstype!="tmpfs"})').catch(() => []),
-    // Disk free per instance (root filesystem + /data)
-    query(url, 'sum by (instance, job) (node_filesystem_free_bytes{mountpoint=~"/|/data",fstype!="tmpfs"})').catch(() => []),
+    // Disk total per instance (excluding virtual fs and FUSE/rclone mounts)
+    query(url, 'sum by (instance, job) (node_filesystem_size_bytes{fstype!~"tmpfs|autofs|proc|sysfs|fuse.*", mountpoint!~"/tmp.*|/var/lib/docker/.*|/run/.*"})').catch(() => []),
+    // Disk free per instance
+    query(url, 'sum by (instance, job) (node_filesystem_free_bytes{fstype!~"tmpfs|autofs|proc|sysfs|fuse.*", mountpoint!~"/tmp.*|/var/lib/docker/.*|/run/.*"})').catch(() => []),
     // Network receive rate (bytes/sec)
     query(url, 'sum by (instance, job) (rate(node_network_receive_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[1m]))').catch(() => []),
     // Network transmit rate (bytes/sec)
     query(url, 'sum by (instance, job) (rate(node_network_transmit_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[1m]))').catch(() => []),
-    // Total traffic received in last 24h
+    // 24h Network receive total (bytes)
     query(url, 'sum by (instance, job) (increase(node_network_receive_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[24h]))').catch(() => []),
-    // Total traffic transmitted in last 24h
+    // 24h Network transmit total (bytes)
     query(url, 'sum by (instance, job) (increase(node_network_transmit_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[24h]))').catch(() => []),
-    // Up instances (at least one successful scrape in last 5m)
-    // We broaden the job filter to catch more variations of node-exporter jobs
-    query(url, 'max_over_time(up{job=~".*node.*|.*exporter.*|.*host.*"}[5m])').catch(() => [])
+    // Targets status from /api/v1/targets
+    getTargets(url).catch(() => []),
+    // Conntrack entries
+    query(url, 'node_nf_conntrack_entries').catch(() => []),
+    // Conntrack limits
+    query(url, 'node_nf_conntrack_entries_limit').catch(() => [])
   ]);
 
+  // Fetch 24h detailed traffic using the A*duration logic
+  const traffic24hSum = await get24hTrafficSum(url).catch(() => ({ rx: 0, tx: 0 }));
+
   // Build per-instance data map
   const instances = new Map();
 
   const getOrCreate = (metric) => {
-    const key = metric.instance;
-    if (!instances.has(key)) {
-      instances.set(key, {
-        instance: key,
+    const originalInstance = metric.instance || 'Unknown';
+    const job = metric.job || 'Unknown';
+    const token = getServerToken(originalInstance, job, sourceName);
+    
+    // Store mapping for detail queries
+    serverIdMap.set(token, { instance: originalInstance, source: sourceName, job, lastSeen: Date.now() });
+    
+    // Also store in Valkey for resilience across restarts
+    cache.set(`server_token:${token}`, originalInstance, 86400).catch(()=>{});
+
+    if (!instances.has(token)) {
+      instances.set(token, {
+        instance: token, // This is the masked IP SENT TO FRONTEND
+        originalInstance, // Keep internal for aggregation/parsing
         job: metric.job || 'Unknown',
         source: sourceName,
         cpuPercent: 0,
@@ -194,10 +277,17 @@ async function getOverviewMetrics(url, sourceName) {
         diskUsed: 0,
         netRx: 0,
         netTx: 0,
-        up: false
+        traffic24hRx: 0,
+        traffic24hTx: 0,
+        conntrackEntries: 0,
+        conntrackLimit: 0,
+        up: false,
+        memPercent: 0,
+        diskPercent: 0,
+        conntrackPercent: 0
       });
     }
-    const inst = instances.get(key);
+    const inst = instances.get(token);
     // If job was Unknown but we now have a job name, update it
     if (inst.job === 'Unknown' && metric.job) {
       inst.job = metric.job;
@@ -205,10 +295,17 @@ async function getOverviewMetrics(url, sourceName) {
     return inst;
   };
 
-  // Parse UP status
-  for (const r of upResult) {
-    const inst = getOrCreate(r.metric);
-    inst.up = parseFloat(r.value[1]) === 1;
+  // Initialize instances from targets first (to ensure we have all servers even if they have no metrics)
+  for (const target of targetsResult) {
+    const labels = target.labels || {};
+    const instance = labels.instance;
+    const job = labels.job || '';
+    
+    // Include every target from the activeTargets list
+    if (instance) {
+      const inst = getOrCreate(labels);
+      inst.up = target.health === 'up';
+    }
   }
 
   // Parse CPU usage
@@ -253,14 +350,39 @@ async function getOverviewMetrics(url, sourceName) {
     inst.netTx = parseFloat(r.value[1]) || 0;
   }
 
-  // Final check: If an instance has non-zero CPU or Memory total data but is marked offline, 
-  // it means we missed its 'up' metric due to job labels, but it's clearly sending data.
+  // Parse 24h traffic
+  for (const r of netRx24hResult) {
+    const inst = getOrCreate(r.metric);
+    inst.traffic24hRx = parseFloat(r.value[1]) || 0;
+  }
+  for (const r of netTx24hResult) {
+    const inst = getOrCreate(r.metric);
+    inst.traffic24hTx = parseFloat(r.value[1]) || 0;
+  }
+
+  // Parse conntrack
+  for (const r of conntrackEntriesResult) {
+    const inst = getOrCreate(r.metric);
+    inst.conntrackEntries = parseFloat(r.value[1]) || 0;
+  }
+  for (const r of conntrackLimitResult) {
+    const inst = getOrCreate(r.metric);
+    inst.conntrackLimit = parseFloat(r.value[1]) || 0;
+  }
+
   for (const inst of instances.values()) {
     if (!inst.up && (inst.cpuPercent > 0 || inst.memTotal > 0)) {
       inst.up = true;
     }
+    // Calculate percentages on backend
+    inst.memPercent = inst.memTotal > 0 ? (inst.memUsed / inst.memTotal * 100) : 0;
+    inst.diskPercent = inst.diskTotal > 0 ? (inst.diskUsed / inst.diskTotal * 100) : 0;
+    inst.conntrackPercent = inst.conntrackLimit > 0 ? (inst.conntrackEntries / inst.conntrackLimit * 100) : 0;
   }
 
+  const allInstancesList = Array.from(instances.values());
+  const activeInstances = allInstancesList.filter(inst => inst.up);
+
   // Aggregate
   let totalCpuUsed = 0, totalCpuCores = 0;
   let totalMemUsed = 0, totalMemTotal = 0;
@@ -268,7 +390,7 @@ async function getOverviewMetrics(url, sourceName) {
   let totalNetRx = 0, totalNetTx = 0;
   let totalTraffic24hRx = 0, totalTraffic24hTx = 0;
 
-  for (const inst of instances.values()) {
+  for (const inst of activeInstances) {
     totalCpuUsed += (inst.cpuPercent / 100) * inst.cpuCores;
     totalCpuCores += inst.cpuCores;
     totalMemUsed += inst.memUsed;
@@ -279,16 +401,13 @@ async function getOverviewMetrics(url, sourceName) {
     totalNetTx += inst.netTx;
   }
 
-  // Parse 24h traffic
-  for (const r of traffic24hRxResult) {
-    totalTraffic24hRx += parseFloat(r.value[1]) || 0;
-  }
-  for (const r of traffic24hTxResult) {
-    totalTraffic24hTx += parseFloat(r.value[1]) || 0;
-  }
+  // Use the pre-calculated 24h traffic
+  totalTraffic24hRx = traffic24hSum.rx;
+  totalTraffic24hTx = traffic24hSum.tx;
 
   return {
-    totalServers: instances.size,
+    totalServers: allInstancesList.length,
+    activeServers: activeInstances.length,
     cpu: {
       used: totalCpuUsed,
       total: totalCpuCores,
@@ -311,19 +430,78 @@ async function getOverviewMetrics(url, sourceName) {
     },
     traffic24h: {
       rx: totalTraffic24hRx,
-      tx: totalTraffic24hTx
+      tx: totalTraffic24hTx,
+      total: totalTraffic24hRx + totalTraffic24hTx
     },
-    servers: Array.from(instances.values())
+    servers: allInstancesList
   };
 }
 
+
+
 /**
- * Get network traffic history (past 24h, 15-min intervals)
+ * Calculate total traffic from bandwidth data points using the A*duration logic
+ */
+function calculateTrafficFromHistory(values) {
+  if (!values || values.length < 2) return 0;
+  
+  let totalBytes = 0;
+  for (let i = 0; i < values.length - 1; i++) {
+    const [tsA, valA] = values[i];
+    const [tsB] = values[i+1];
+    const duration = tsB - tsA;
+    totalBytes += parseFloat(valA) * duration;
+  }
+  return totalBytes;
+}
+
+/**
+ * Get total traffic for the past 24h using Prometheus increase() for stability and accuracy
+ */
+async function get24hTrafficSum(url) {
+  try {
+    const [rxResult, txResult] = await Promise.all([
+      query(url, 'sum(increase(node_network_receive_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[24h]))').catch(() => []),
+      query(url, 'sum(increase(node_network_transmit_bytes_total{device!~"lo|veth.*|docker.*|br-.*"}[24h]))').catch(() => [])
+    ]);
+
+    const rx = rxResult.length > 0 ? parseFloat(rxResult[0].value[1]) : 0;
+    const tx = txResult.length > 0 ? parseFloat(txResult[0].value[1]) : 0;
+
+    return { rx, tx };
+  } catch (err) {
+    console.error(`[Prometheus] get24hTrafficSum error:`, err.message);
+    return { rx: 0, tx: 0 };
+  }
+}
+
+/**
+ * Get total traffic for a specific server in the past 24h
+ */
+async function get24hServerTrafficSum(url, instance, job) {
+  const node = resolveToken(instance);
+  
+  const rxExpr = `sum(increase(node_network_receive_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[24h]))`;
+  const txExpr = `sum(increase(node_network_transmit_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[24h]))`;
+
+  const [rxResult, txResult] = await Promise.all([
+    query(url, rxExpr).catch(() => []),
+    query(url, txExpr).catch(() => [])
+  ]);
+
+  const rx = rxResult.length > 0 ? parseFloat(rxResult[0].value[1]) : 0;
+  const tx = txResult.length > 0 ? parseFloat(txResult[0].value[1]) : 0;
+
+  return { rx, tx };
+}
+
+/**
+ * Get network traffic history (past 24h, 5-min intervals for chart)
  */
 async function getNetworkHistory(url) {
-  const now = Math.floor(Date.now() / 1000);
+  const step = 300; // 5 minutes for better resolution on chart
+  const now = Math.floor(Date.now() / 1000 / step) * step; // Sync to step boundary
   const start = now - 86400; // 24h ago
-  const step = 900; // 15 minutes
 
   const [rxResult, txResult] = await Promise.all([
     queryRange(url,
@@ -375,9 +553,9 @@ function mergeNetworkHistories(histories) {
  * Get CPU usage history (past 1h, 1-min intervals)
  */
 async function getCpuHistory(url) {
-  const now = Math.floor(Date.now() / 1000);
-  const start = now - 3600; // 1h ago
   const step = 60; // 1 minute
+  const now = Math.floor(Date.now() / 1000 / step) * step; // Sync to step boundary
+  const start = now - 3600; // 1h ago
 
   const result = await queryRange(url,
     '100 - (avg(rate(node_cpu_seconds_total{mode="idle"}[1m])) * 100)',
@@ -412,74 +590,298 @@ function mergeCpuHistories(histories) {
 }
 
 
+async function resolveToken(token) {
+  if (serverIdMap.has(token)) {
+    return serverIdMap.get(token).instance;
+  }
+  const cachedInstance = await cache.get(`server_token:${token}`);
+  if (cachedInstance) return cachedInstance;
+  
+  return token;
+}
+
 /**
  * Get detailed metrics for a specific server (node)
  */
-async function getServerDetails(baseUrl, instance, job) {
+async function getServerDetails(baseUrl, instance, job, settings = {}) {
   const url = normalizeUrl(baseUrl);
-  const node = instance;
+  const node = await resolveToken(instance);
   
   // Queries based on the requested dashboard structure
   const queries = {
+    cpuIowait: `avg(rate(node_cpu_seconds_total{mode="iowait", instance="${node}"}[1m])) * 100`,
+    cpuOther: `avg(rate(node_cpu_seconds_total{mode=~"nice|steal|guest|guest_nice", instance="${node}"}[1m])) * 100`,
     cpuBusy: `100 * (1 - avg(rate(node_cpu_seconds_total{mode="idle", instance="${node}"}[1m])))`,
     sysLoad: `node_load1{instance="${node}",job="${job}"} * 100 / count(count(node_cpu_seconds_total{instance="${node}",job="${job}"}) by (cpu))`,
     memUsedPct: `(1 - (node_memory_MemAvailable_bytes{instance="${node}", job="${job}"} / node_memory_MemTotal_bytes{instance="${node}", job="${job}"})) * 100`,
     swapUsedPct: `((node_memory_SwapTotal_bytes{instance="${node}",job="${job}"} - node_memory_SwapFree_bytes{instance="${node}",job="${job}"}) / (node_memory_SwapTotal_bytes{instance="${node}",job="${job}"})) * 100`,
-    rootFsUsedPct: `100 - ((node_filesystem_avail_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!="rootfs"} * 100) / node_filesystem_size_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!="rootfs"})`,
+    rootFsUsedPct: `100 - ((node_filesystem_avail_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!~"rootfs|tmpfs"} * 100) / node_filesystem_size_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!~"rootfs|tmpfs"})`,
     cpuCores: `count(count(node_cpu_seconds_total{instance="${node}",job="${job}"}) by (cpu))`,
     memTotal: `node_memory_MemTotal_bytes{instance="${node}",job="${job}"}`,
+    swapTotal: `node_memory_SwapTotal_bytes{instance="${node}",job="${job}"}`,
+    rootFsTotal: `node_filesystem_size_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!~"rootfs|tmpfs"}`,
     uptime: `node_time_seconds{instance="${node}",job="${job}"} - node_boot_time_seconds{instance="${node}",job="${job}"}`,
     netRx: `sum(rate(node_network_receive_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`,
-    netTx: `sum(rate(node_network_transmit_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`
+    netTx: `sum(rate(node_network_transmit_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`,
+    sockstatTcp: `node_sockstat_TCP_inuse{instance="${node}",job="${job}"}`,
+    sockstatTcpMem: `node_sockstat_TCP_mem{instance="${node}",job="${job}"} * 4096`,
+    conntrackEntries: `node_nf_conntrack_entries{instance="${node}",job="${job}"}`,
+    conntrackLimit: `node_nf_conntrack_entries_limit{instance="${node}",job="${job}"}`,
+    conntrackUsedPct: `(node_nf_conntrack_entries{instance="${node}",job="${job}"} / node_nf_conntrack_entries_limit{instance="${node}",job="${job}"}) * 100`,
+    // Get individual partitions (excluding virtual and FUSE mounts)
+    partitions_size: `node_filesystem_size_bytes{instance="${node}", job="${job}", fstype!~"tmpfs|autofs|proc|sysfs|fuse.*", mountpoint!~"/tmp.*|/var/lib/docker/.*|/run/.*"}`,
+    partitions_free: `node_filesystem_free_bytes{instance="${node}", job="${job}", fstype!~"tmpfs|autofs|proc|sysfs|fuse.*", mountpoint!~"/tmp.*|/var/lib/docker/.*|/run/.*"}`
   };
 
   const results = {};
   const queryPromises = Object.entries(queries).map(async ([key, expr]) => {
     try {
       const res = await query(url, expr);
+      if (key.startsWith('partitions_')) {
+          results[key] = res.map(r => ({
+              mountpoint: r.metric.mountpoint,
+              value: parseFloat(r.value[1]) || 0
+          }));
+      } else {
           results[key] = res.length > 0 ? parseFloat(res[0].value[1]) : 0;
+      }
     } catch (e) {
       console.error(`[Prometheus] Error querying ${key} for ${node}:`, e.message);
-      results[key] = 0;
+      results[key] = key.startsWith('partitions_') ? [] : 0;
     }
   });
 
   await Promise.all(queryPromises);
+
+  // Process custom metrics from settings
+  results.custom_data = [];
+  try {
+    const customMetrics = typeof settings.custom_metrics === 'string' 
+      ? JSON.parse(settings.custom_metrics) 
+      : (settings.custom_metrics || []);
+    
+    if (Array.isArray(customMetrics) && customMetrics.length > 0) {
+      const customPromises = customMetrics.map(async (cfg) => {
+        if (!cfg.metric) return null;
+        try {
+          const expr = `${cfg.metric}{instance="${node}",job="${job}"}`;
+          const res = await query(url, expr);
+          if (res && res.length > 0) {
+            const val = res[0].metric[cfg.label || 'address'] || res[0].value[1];
+            
+            // If this metric is marked as an IP source, update the main IP fields
+            if (cfg.is_ip && !results.ipv4?.length && !results.ipv6?.length) {
+              if (val.includes(':')) {
+                results.ipv6 = [val];
+                results.ipv4 = [];
+              } else {
+                results.ipv4 = [val];
+                results.ipv6 = [];
+              }
+            }
+            
+            return {
+              name: cfg.name || cfg.metric,
+              value: val
+            };
+          }
+        } catch (e) {
+          console.error(`[Prometheus] Custom metric error (${cfg.metric}):`, e.message);
+        }
+        return null;
+      });
+      
+      const customResults = await Promise.all(customPromises);
+      results.custom_data = customResults.filter(r => r !== null);
+    }
+  } catch (err) {
+    console.error('[Prometheus] Error processing custom metrics:', err.message);
+  }
+
+  // Ensure IP discovery fallback if no custom IP metric found
+  if ((!results.ipv4 || results.ipv4.length === 0) && (!results.ipv6 || results.ipv6.length === 0)) {
+    try {
+      const targets = await getTargets(baseUrl);
+      const matchedTarget = targets.find(t => t.labels && t.labels.instance === node && t.labels.job === job);
+      if (matchedTarget) {
+        const scrapeUrl = matchedTarget.scrapeUrl || '';
+        try {
+          const urlObj = new URL(scrapeUrl);
+          const host = urlObj.hostname;
+          if (host.includes(':')) {
+            results.ipv6 = [host];
+            results.ipv4 = [];
+          } else {
+            results.ipv4 = [host];
+            results.ipv6 = [];
+          }
+        } catch (e) {
+          const host = scrapeUrl.split('//').pop().split('/')[0].split(':')[0];
+          if (host) {
+            results.ipv4 = [host];
+            results.ipv6 = [];
+          }
+        }
+      }
+    } catch (e) {
+      console.error(`[Prometheus] Target fallback error for ${node}:`, e.message);
+    }
+  }
+
+  // Final sanitization
+  results.ipv4 = results.ipv4 || [];
+  results.ipv6 = results.ipv6 || [];
+
+  // Group partitions
+  const partitionsMap = {};
+  (results.partitions_size || []).forEach(p => {
+      partitionsMap[p.mountpoint] = { mountpoint: p.mountpoint, size: p.value, free: 0 };
+  });
+  (results.partitions_free || []).forEach(p => {
+      if (partitionsMap[p.mountpoint]) {
+          partitionsMap[p.mountpoint].free = p.value;
+      }
+  });
+
+  results.partitions = Object.values(partitionsMap).map(p => ({
+      ...p,
+      used: p.size - p.free,
+      percent: p.size > 0 ? ((p.size - p.free) / p.size * 100) : 0
+  })).sort((a, b) => a.mountpoint.localeCompare(b.mountpoint));
+
+  // Calculate total disk size
+  results.totalDiskSize = results.partitions.reduce((sum, p) => sum + (p.size || 0), 0);
+
+  delete results.partitions_size;
+  delete results.partitions_free;
+
+  // Add 24h traffic sum for this specific server
+  try {
+      const traffic24h = await get24hServerTrafficSum(baseUrl, instance, job);
+      results.traffic24h = traffic24h;
+  } catch (e) {
+      console.error(`[Prometheus] Error fetching 24h traffic for ${node}:`, e.message);
+      results.traffic24h = { rx: 0, tx: 0 };
+  }
+
   return results;
 }
 
 /**
  * Get historical metrics for a specific server (node)
  */
-async function getServerHistory(baseUrl, instance, job, metric, range = '1h', start = null, end = null) {
+async function getServerHistory(baseUrl, instance, job, metric, range = '1h', start = null, end = null, p95Type = 'tx') {
   const url = normalizeUrl(baseUrl);
-  const node = instance;
+  const node = await resolveToken(instance);
+  
+  // CPU Busy history: 100 - idle
+  if (metric === 'cpuBusy') {
+      const expr = `100 * (1 - avg(rate(node_cpu_seconds_total{mode="idle", instance="${node}"}[1m])))`;
+      const rangeObj = parseRange(range, start, end);
+      const result = await queryRange(url, expr, rangeObj.queryStart, rangeObj.queryEnd, rangeObj.step);
+      
+      if (!result || result.length === 0) return { timestamps: [], values: [] };
+      
+      return {
+          timestamps: result[0].values.map(v => v[0] * 1000),
+          values: result[0].values.map(v => parseFloat(v[1]))
+      };
+  }
 
   // Map metric keys to Prometheus expressions
   const metricMap = {
-    cpuBusy: `100 * (1 - avg(rate(node_cpu_seconds_total{mode="idle", instance="${node}"}[1m])))`,
     sysLoad: `node_load1{instance="${node}",job="${job}"} * 100 / count(count(node_cpu_seconds_total{instance="${node}",job="${job}"}) by (cpu))`,
     memUsedPct: `(1 - (node_memory_MemAvailable_bytes{instance="${node}", job="${job}"} / node_memory_MemTotal_bytes{instance="${node}", job="${job}"})) * 100`,
     swapUsedPct: `((node_memory_SwapTotal_bytes{instance="${node}",job="${job}"} - node_memory_SwapFree_bytes{instance="${node}",job="${job}"}) / (node_memory_SwapTotal_bytes{instance="${node}",job="${job}"})) * 100`,
     rootFsUsedPct: `100 - ((node_filesystem_avail_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!="rootfs"} * 100) / node_filesystem_size_bytes{instance="${node}",job="${job}",mountpoint="/",fstype!="rootfs"})`,
     netRx: `sum(rate(node_network_receive_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`,
-    netTx: `sum(rate(node_network_transmit_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`
+    netTx: `sum(rate(node_network_transmit_bytes_total{instance="${node}",job="${job}",device!~'tap.*|veth.*|br.*|docker.*|virbr*|podman.*|lo.*|vmbr.*|fwbr.|ip.*|gre.*|virbr.*|vnet.*'}[1m]))`,
+    sockstatTcp: `node_sockstat_TCP_inuse{instance="${node}",job="${job}"}`,
+    sockstatTcpMem: `node_sockstat_TCP_mem{instance="${node}",job="${job}"} * 4096`,
+    conntrackUsedPct: `(node_nf_conntrack_entries{instance="${node}",job="${job}"} / node_nf_conntrack_entries_limit{instance="${node}",job="${job}"}) * 100`
   };
 
+  const rangeObj = parseRange(range, start, end);
+
+  if (metric === 'networkTrend') {
+      const txExpr = metricMap.netTx;
+      const rxExpr = metricMap.netRx;
+      const [txResult, rxResult] = await Promise.all([
+          queryRange(url, txExpr, rangeObj.queryStart, rangeObj.queryEnd, rangeObj.step),
+          queryRange(url, rxExpr, rangeObj.queryStart, rangeObj.queryEnd, rangeObj.step)
+      ]);
+      
+      if (txResult.length === 0 && rxResult.length === 0) return { timestamps: [], rx: [], tx: [] };
+      
+      const timestamps = (txResult.length > 0 ? txResult[0] : rxResult[0]).values.map(v => v[0] * 1000);
+      const tx = txResult.length > 0 ? txResult[0].values.map(v => parseFloat(v[1])) : new Array(timestamps.length).fill(0);
+      const rx = rxResult.length > 0 ? rxResult[0].values.map(v => parseFloat(v[1])) : new Array(timestamps.length).fill(0);
+      
+      // Calculate statistics on backend
+      let rxTotal = 0;
+      let txTotal = 0;
+      for (let i = 0; i < timestamps.length - 1; i++) {
+          const duration = (timestamps[i+1] - timestamps[i]) / 1000;
+          rxTotal += (rx[i] || 0) * duration;
+          txTotal += (tx[i] || 0) * duration;
+      }
+
+      // Calculate P95 based on p95Type
+      let combined = [];
+      if (p95Type === 'rx') {
+          combined = [...rx];
+      } else if (p95Type === 'both') {
+          combined = tx.map((t, i) => (t || 0) + (rx[i] || 0));
+      } else if (p95Type === 'max') {
+          combined = tx.map((t, i) => Math.max(t || 0, rx[i] || 0));
+      } else {
+          // Default to tx
+          combined = [...tx];
+      }
+
+      const sorted = combined.sort((a, b) => a - b);
+      const p95Idx = Math.floor(sorted.length * 0.95);
+      const p95 = sorted.length > 0 ? sorted[p95Idx] : 0;
+
+      return { 
+          timestamps, 
+          tx, 
+          rx,
+          stats: {
+              rxTotal,
+              txTotal,
+              p95,
+              total: rxTotal + txTotal
+          }
+      };
+  }
+
   const expr = metricMap[metric];
   if (!expr) throw new Error('Invalid metric for history');
 
+  try {
+    const result = await queryRange(url, expr, rangeObj.queryStart, rangeObj.queryEnd, rangeObj.step);
+    if (!result || result.length === 0) return { timestamps: [], values: [] };
+    
+    return {
+      timestamps: result[0].values.map(v => v[0] * 1000),
+      values: result[0].values.map(v => parseFloat(v[1]))
+    };
+  } catch (err) {
+    console.error(`[Prometheus] Error fetching history for ${metric} on ${node}:`, err.message);
+    throw err;
+  }
+}
+
+function parseRange(range, start, end) {
     let duration, step, queryStart, queryEnd;
     
     if (start && end) {
         queryStart = Math.floor(new Date(start).getTime() / 1000);
         queryEnd = Math.floor(new Date(end).getTime() / 1000);
         duration = queryEnd - queryStart;
-    if (duration <= 0) throw new Error('End time must be after start time');
-    // Reasonable step for fixed range
         step = Math.max(15, Math.floor(duration / 100));
     } else {
-    // Relative range logic
         const rangeMap = {
             '15m': { duration: 900, step: 15 },
             '30m': { duration: 1800, step: 30 },
@@ -495,14 +897,12 @@ async function getServerHistory(baseUrl, instance, job, metric, range = '1h', st
             duration = rangeMap[range].duration;
             step = rangeMap[range].step;
         } else {
-      // Try to parse relative time string like "2h", "30m", "1d"
             const match = range.match(/^(\d+)([smhd])$/);
             if (match) {
                 const val = parseInt(match[1]);
                 const unit = match[2];
                 const multipliers = { s: 1, m: 60, h: 3600, d: 86400 };
                 duration = val * (multipliers[unit] || 3600);
-          // Calculate a reasonable step for ~60-120 data points
                 step = Math.max(15, Math.floor(duration / 100));
             } else {
                 duration = 3600;
@@ -512,30 +912,48 @@ async function getServerHistory(baseUrl, instance, job, metric, range = '1h', st
         queryEnd = Math.floor(Date.now() / 1000);
         queryStart = queryEnd - duration;
     }
-
-  try {
-    const result = await queryRange(url, expr, queryStart, queryEnd, step);
-    if (!result || result.length === 0) return { timestamps: [], values: [] };
-    
-    return {
-      timestamps: result[0].values.map(v => v[0] * 1000),
-      values: result[0].values.map(v => parseFloat(v[1]))
-    };
-  } catch (err) {
-    console.error(`[Prometheus] Error fetching history for ${metric} on ${node}:`, err.message);
-    throw err;
-  }
+    return { queryStart, queryEnd, step };
 }
 
 module.exports = {
   testConnection,
   query,
   queryRange,
+  getTargets,
   getOverviewMetrics,
+  get24hTrafficSum,
   getNetworkHistory,
   mergeNetworkHistories,
   getCpuHistory,
   mergeCpuHistories,
   getServerDetails,
-  getServerHistory
+  getServerHistory,
+  resolveToken,
+  getLatency: async (blackboxUrl, target) => {
+    if (!blackboxUrl || !target) return null;
+    try {
+      const normalized = normalizeUrl(blackboxUrl);
+      
+      const queryExpr = `(
+        probe_icmp_duration_seconds{phase="rtt", instance="${target}"} or 
+        probe_icmp_duration_seconds{phase="rtt", target="${target}"} or 
+        probe_http_duration_seconds{phase="rtt", instance="${target}"} or 
+        probe_http_duration_seconds{phase="rtt", target="${target}"} or 
+        probe_icmp_duration_seconds{instance="${target}"} or 
+        probe_icmp_duration_seconds{target="${target}"} or 
+        probe_duration_seconds{instance="${target}"} or 
+        probe_duration_seconds{target="${target}"}
+      )`;
+      
+      const result = await query(normalized, queryExpr);
+      if (result && result.length > 0) {
+        return parseFloat(result[0].value[1]) * 1000;
+      }
+      return null;
+    } catch (err) {
+      console.error(`[Prometheus] Error fetching latency for ${target}:`, err.message);
+      return null;
+    }
+  },
+  getCacheKey
 };

update.sh

@@ -0,0 +1,187 @@
+#!/bin/bash
+
+set -euo pipefail
+
+SERVICE_NAME="promdatapanel"
+DEFAULT_APP_DIR="/opt/promdata-panel"
+ZIP_URL="https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/archive/main.zip"
+
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+APP_DIR=""
+TEMP_DIR=""
+BACKUP_DIR=""
+ROLLBACK_REQUIRED=false
+
+echo -e "${BLUE}=== Starting PromdataPanel Update ===${NC}"
+
+cleanup() {
+    if [ -n "${TEMP_DIR}" ] && [ -d "${TEMP_DIR}" ]; then
+        rm -rf "${TEMP_DIR}"
+    fi
+}
+
+rollback() {
+    if [ "$ROLLBACK_REQUIRED" != true ] || [ -z "${BACKUP_DIR}" ] || [ ! -d "${BACKUP_DIR}" ]; then
+        return
+    fi
+
+    echo -e "${YELLOW}Update failed. Restoring previous application state...${NC}"
+    rsync -a --delete --exclude '.env' "${BACKUP_DIR}/" "${APP_DIR}/"
+}
+
+trap 'rollback' ERR
+trap cleanup EXIT
+
+validate_app_dir() {
+    local dir="$1"
+    [ -n "$dir" ] || return 1
+    [ -d "$dir" ] || return 1
+    [ -f "$dir/package.json" ] || return 1
+    [ -f "$dir/server/index.js" ] || return 1
+    [ -f "$dir/public/index.html" ] || return 1
+    return 0
+}
+
+detect_app_dir() {
+    local service_dir=""
+    if command -v systemctl >/dev/null 2>&1 && systemctl list-unit-files | grep -q "^${SERVICE_NAME}\.service"; then
+        echo "Detecting application directory from systemd service..."
+        service_dir=$(systemctl show -p WorkingDirectory "$SERVICE_NAME" | cut -d= -f2-)
+        if validate_app_dir "$service_dir"; then
+            APP_DIR="$service_dir"
+            return
+        fi
+    fi
+
+    local current_dir
+    current_dir=$(pwd)
+    if validate_app_dir "$current_dir"; then
+        APP_DIR="$current_dir"
+        return
+    fi
+
+    if validate_app_dir "$DEFAULT_APP_DIR"; then
+        APP_DIR="$DEFAULT_APP_DIR"
+        return
+    fi
+
+    echo -e "${RED}Error: Could not locate a valid PromdataPanel application directory.${NC}"
+    echo -e "${YELLOW}Expected markers: package.json, server/index.js, public/index.html${NC}"
+    exit 1
+}
+
+ensure_tool() {
+    local cmd="$1"
+    if command -v "$cmd" >/dev/null 2>&1; then
+        return
+    fi
+
+    echo -e "${BLUE}${cmd} is not installed. Attempting to install it...${NC}"
+    if command -v apt-get >/dev/null 2>&1; then
+        sudo apt-get update
+        sudo apt-get install -y "$cmd"
+    elif command -v dnf >/dev/null 2>&1; then
+        sudo dnf install -y "$cmd"
+    elif command -v yum >/dev/null 2>&1; then
+        sudo yum install -y "$cmd"
+    elif command -v apk >/dev/null 2>&1; then
+        sudo apk add "$cmd"
+    else
+        echo -e "${RED}Error: '${cmd}' is not installed and could not be auto-installed.${NC}"
+        exit 1
+    fi
+}
+
+update_from_git() {
+    echo -e "${BLUE}Git repository detected. Pulling latest code...${NC}"
+    if [ -n "$(git status --porcelain)" ]; then
+        echo -e "${RED}Error: Working tree has local changes. Commit or stash them before updating.${NC}"
+        exit 1
+    fi
+    git pull --ff-only
+}
+
+update_from_zip() {
+    echo -e "${BLUE}No git repository found. Updating via ZIP archive with staging and rollback...${NC}"
+    ensure_tool curl
+    ensure_tool unzip
+    ensure_tool rsync
+
+    TEMP_DIR=$(mktemp -d "${TMPDIR:-/tmp}/promdatapanel-update-XXXXXX")
+    BACKUP_DIR="${TEMP_DIR}/backup"
+    local archive_path="${TEMP_DIR}/latest.zip"
+    local extracted_folder=""
+    local staging_dir=""
+
+    echo "Downloading latest version (main branch)..."
+    curl -fL "$ZIP_URL" -o "$archive_path"
+
+    echo "Extracting archive..."
+    unzip -q "$archive_path" -d "$TEMP_DIR"
+    extracted_folder=$(find "$TEMP_DIR" -mindepth 1 -maxdepth 1 -type d ! -name backup | head -n 1)
+
+    if ! validate_app_dir "$extracted_folder"; then
+        echo -e "${RED}Extraction failed or archive structure is invalid.${NC}"
+        exit 1
+    fi
+
+    staging_dir="${TEMP_DIR}/staging"
+    mkdir -p "$staging_dir"
+    rsync -a --exclude '.git' "$extracted_folder/" "$staging_dir/"
+
+    if [ -f "${APP_DIR}/.env" ]; then
+        cp "${APP_DIR}/.env" "${staging_dir}/.env"
+    fi
+
+    echo "Installing dependencies in staging directory..."
+    (
+        cd "$staging_dir"
+        npm install --production
+    )
+
+    echo "Creating rollback backup..."
+    rsync -a --delete --exclude '.env' "${APP_DIR}/" "${BACKUP_DIR}/"
+
+    echo "Applying staged update..."
+    ROLLBACK_REQUIRED=true
+    rsync -a --delete --exclude '.env' "${staging_dir}/" "${APP_DIR}/"
+}
+
+restart_service() {
+    if command -v systemctl >/dev/null 2>&1 && systemctl is-active --quiet "$SERVICE_NAME"; then
+        echo -e "${BLUE}Restarting systemd service: ${SERVICE_NAME}...${NC}"
+        sudo systemctl restart "$SERVICE_NAME"
+        return
+    fi
+
+    if command -v pm2 >/dev/null 2>&1 && pm2 list | grep -q "$SERVICE_NAME"; then
+        echo -e "${BLUE}Restarting with PM2...${NC}"
+        pm2 restart "$SERVICE_NAME"
+        return
+    fi
+
+    echo -e "${YELLOW}Warning: Could not detect an active systemd service or PM2 process named '${SERVICE_NAME}'.${NC}"
+    echo -e "${YELLOW}Please restart the application manually.${NC}"
+}
+
+detect_app_dir
+echo -e "${BLUE}Application directory: ${APP_DIR}${NC}"
+cd "$APP_DIR"
+
+if [ -d ".git" ]; then
+    update_from_git
+    echo -e "${BLUE}Updating npm dependencies...${NC}"
+    npm install --production
+else
+    update_from_zip
+fi
+
+restart_service
+ROLLBACK_REQUIRED=false
+
+echo -e "${GREEN}=== Update successfully finished ===${NC}"