feat: 添加主机 Cron 列表展示功能

2026-04-14 10:34:24 +08:00
parent b44d0cfd00
commit 9a23e98dc1
8 changed files with 87900 additions and 1 deletions
--- a/app.py
+++ b/app.py
@@ -244,7 +244,7 @@ HTML_TEMPLATE = '''<!DOCTYPE html>
        </div>

        <!-- 统计卡片 -->
-        <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-8">
+        <div class="grid grid-cols-2 md:grid-cols-5 gap-4 mb-8">
            <div class="card rounded-xl p-4">
                <div class="flex items-center justify-between">
                    <div>
@@ -281,6 +281,34 @@ HTML_TEMPLATE = '''<!DOCTYPE html>
                    <i class="ri-terminal-box-line text-3xl text-purple-400 opacity-50"></i>
                </div>
            </div>
+            <div class="card rounded-xl p-4">
+                <div class="flex items-center justify-between">
+                    <div>
+                        <p class="text-gray-400 text-sm">系统Cron</p>
+                        <p id="systemCronCount" class="text-2xl font-bold text-orange-400">-</p>
+                    </div>
+                    <i class="ri-timer-line text-3xl text-orange-400 opacity-50"></i>
+                </div>
+            </div>
+        </div>
+        
+        <!-- 系统 Cron 列表 -->
+        <div class="card rounded-xl p-6 mb-8">
+            <div class="flex items-center justify-between mb-4">
+                <h2 class="text-xl font-bold flex items-center gap-2">
+                    <i class="ri-timer-line text-orange-400"></i>
+                    主机 Cron 列表
+                </h2>
+                <button onclick="loadCrons()" class="btn bg-orange-600 hover:bg-orange-700 px-3 py-1 rounded text-sm flex items-center gap-1">
+                    <i class="ri-refresh-line"></i> 刷新
+                </button>
+            </div>
+            <div id="cronsList" class="space-y-3">
+                <div class="text-center py-8 text-gray-400">
+                    <i class="ri-loader-4-line text-2xl animate-spin"></i>
+                    <p class="mt-2 text-sm">加载中...</p>
+                </div>
+            </div>
        </div>

        <!-- 筛选器 -->
@@ -634,9 +662,84 @@ HTML_TEMPLATE = '''<!DOCTYPE html>

        // 初始化
        loadProjects();
+        loadCrons();
        
        // 每30秒自动刷新
        setInterval(loadProjects, 30000);
+
+        async function loadCrons() {
+            try {
+                const res = await fetch('/api/crons');
+                const data = await res.json();
+                renderCrons(data.crons);
+                document.getElementById('systemCronCount').textContent = data.crons.length;
+            } catch (e) {
+                console.error('加载Cron失败:', e);
+                document.getElementById('cronsList').innerHTML = `
+                    <div class="text-center py-8 text-red-400">
+                        <i class="ri-error-warning-line text-2xl"></i>
+                        <p class="mt-2 text-sm">加载失败: ${e.message}</p>
+                    </div>
+                `;
+            }
+        }
+
+        function renderCrons(crons) {
+            const list = document.getElementById('cronsList');
+            
+            if (crons.length === 0) {
+                list.innerHTML = `
+                    <div class="text-center py-8 text-gray-400">
+                        <i class="ri-folder-open-line text-2xl"></i>
+                        <p class="mt-2 text-sm">暂无 Cron 任务</p>
+                    </div>
+                `;
+                return;
+            }
+
+            const sourceColors = {
+                'user': { bg: 'bg-blue-500/20', text: 'text-blue-400', label: '用户' },
+                'system': { bg: 'bg-red-500/20', text: 'text-red-400', label: '系统' },
+                'cron.d': { bg: 'bg-green-500/20', text: 'text-green-400', label: 'cron.d' }
+            };
+
+            let html = '';
+            crons.forEach((cron, index) => {
+                const sourceInfo = sourceColors[cron.source] || { bg: 'bg-gray-500/20', text: 'text-gray-400', label: cron.source };
+                html += `
+                    <div class="bg-gray-800/50 rounded-lg p-3 border border-gray-700">
+                        <div class="flex items-start justify-between gap-4">
+                            <div class="flex-1">
+                                <div class="flex items-center gap-2 mb-2">
+                                    <span class="px-2 py-0.5 rounded text-xs ${sourceInfo.bg} ${sourceInfo.text}">${sourceInfo.label}</span>
+                                    ${cron.file ? `<span class="text-xs text-gray-500">${cron.file}</span>` : ''}
+                                    ${cron.user ? `<span class="text-xs text-gray-400">用户: ${cron.user}</span>` : ''}
+                                </div>
+                                <div class="flex items-center gap-3">
+                                    <code class="text-yellow-400 text-sm font-mono">${cron.expression}</code>
+                                    <span class="text-gray-500 text-xs">→</span>
+                                    <span class="text-green-400 text-sm">${cron.description || ''}</span>
+                                </div>
+                                <div class="mt-2 text-gray-300 text-sm font-mono break-all">
+                                    ${escapeHtml(cron.command)}
+                                </div>
+                            </div>
+                            <div class="text-right">
+                                <span class="text-xs text-gray-500">#${index + 1}</span>
+                            </div>
+                        </div>
+                    </div>
+                `;
+            });
+
+            list.innerHTML = html;
+        }
+
+        function escapeHtml(text) {
+            const div = document.createElement('div');
+            div.textContent = text;
+            return div.innerHTML;
+        }
    </script>
 </body>
 </html>
@@ -821,6 +924,149 @@ def api_delete_project(project_id):
    return jsonify({'message': '删除成功'})


+def get_system_crons():
+    """获取系统所有 cron 任务"""
+    crons = []
+    
+    # 获取当前用户的 crontab
+    try:
+        result = subprocess.run(
+            "crontab -l 2>/dev/null",
+            shell=True, capture_output=True, text=True, timeout=5
+        )
+        user_crontab = result.stdout.strip()
+        if user_crontab:
+            for line in user_crontab.split('\n'):
+                line = line.strip()
+                if line and not line.startswith('#'):
+                    # 解析 cron 行
+                    parts = line.split()
+                    if len(parts) >= 6:
+                        cron_expr = ' '.join(parts[:5])
+                        command = ' '.join(parts[5:])
+                        crons.append({
+                            'source': 'user',
+                            'expression': cron_expr,
+                            'command': command,
+                            'line': line
+                        })
+    except:
+        pass
+    
+    # 获取系统级 cron (/etc/crontab)
+    try:
+        if os.path.exists('/etc/crontab'):
+            with open('/etc/crontab', 'r') as f:
+                for line in f:
+                    line = line.strip()
+                    if line and not line.startswith('#'):
+                        parts = line.split()
+                        if len(parts) >= 7:
+                            # 系统 crontab 有额外的 user 字段
+                            cron_expr = ' '.join(parts[:5])
+                            user = parts[5]
+                            command = ' '.join(parts[6:])
+                            crons.append({
+                                'source': 'system',
+                                'expression': cron_expr,
+                                'user': user,
+                                'command': command,
+                                'line': line
+                            })
+    except:
+        pass
+    
+    # 获取 /etc/cron.d/ 目录下的任务
+    try:
+        cron_d_dir = '/etc/cron.d'
+        if os.path.exists(cron_d_dir):
+            for filename in os.listdir(cron_d_dir):
+                filepath = os.path.join(cron_d_dir, filename)
+                if os.path.isfile(filepath):
+                    with open(filepath, 'r') as f:
+                        for line in f:
+                            line = line.strip()
+                            if line and not line.startswith('#'):
+                                parts = line.split()
+                                if len(parts) >= 7:
+                                    cron_expr = ' '.join(parts[:5])
+                                    user = parts[5]
+                                    command = ' '.join(parts[6:])
+                                    crons.append({
+                                        'source': 'cron.d',
+                                        'file': filename,
+                                        'expression': cron_expr,
+                                        'user': user,
+                                        'command': command,
+                                        'line': line
+                                    })
+    except:
+        pass
+    
+    return crons
+
+
+def parse_cron_expression(expr):
+    """解析 cron 表达式为人类可读格式"""
+    parts = expr.split()
+    if len(parts) != 5:
+        return expr
+    
+    minute, hour, day, month, weekday = parts
+    
+    desc = []
+    
+    # 分钟
+    if minute == '*':
+        desc.append('每分钟')
+    elif minute.startswith('*/'):
+        desc.append(f'每{minute[2:]}分钟')
+    else:
+        desc.append(f'{minute}分')
+    
+    # 小时
+    if hour != '*':
+        if minute == '*':
+            desc = [f'{hour}点每分钟']
+        else:
+            desc = [f'{hour}点{minute}分']
+    elif minute.startswith('*/'):
+        # 保持 "每X分钟"
+        pass
+    
+    # 日期
+    if day != '*':
+        desc.append(f'{day}号')
+    
+    # 月份
+    if month != '*':
+        months = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12']
+        try:
+            desc.append(f'{months[int(month)-1]}月')
+        except:
+            desc.append(f'{month}月')
+    
+    # 星期
+    if weekday != '*':
+        weekdays = ['周日', '周一', '周二', '周三', '周四', '周五', '周六']
+        try:
+            # 0=周日, 1=周一...
+            desc.append(weekdays[int(weekday)])
+        except:
+            desc.append(f'周{weekday}')
+    
+    return ' '.join(desc) if desc else expr
+
+
+@app.route('/api/crons')
+def api_crons():
+    """获取系统 cron 列表"""
+    crons = get_system_crons()
+    for cron in crons:
+        cron['description'] = parse_cron_expression(cron['expression'])
+    return jsonify({'crons': crons})
+
+
 if __name__ == '__main__':
    os.makedirs(os.path.join(BASE_DIR, 'logs'), exist_ok=True)
    print("=" * 50)