All files / src/routes docker.js

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/**
 * Routes Docker — Gestion des containers sur le serveur distant.
 *
 * Endpoints :
 *   GET  /servers/:serverId/docker                     — Liste les containers
 *   GET  /servers/:serverId/docker/:containerId        — Détail d'un container
 *   GET  /servers/:serverId/docker/:containerId/logs   — Logs d'un container
 *   POST /servers/:serverId/docker/:containerId/action — Action (start/stop/restart)
 *
 * Sécurité :
 *   - Validation du containerId avec validateContainerName
 *   - Actions limitées à une whitelist (start, stop, restart)
 *   - Filtrage des variables d'environnement sensibles dans le détail
 *   - shellEscape sur les IDs de container
 *
 * @module routes/docker
 */
 
const express = require('express');
const { requireAuth } = require('../middleware/auth');
const { requireFeature } = require('../middleware/planLimits');
const { exec } = require('../services/ssh');
const { shellEscape, shellInt } = require('../utils/shell');
const { validateContainerName } = require('../utils/pathValidator');
const { requireGroupContext, requireGroupPermission, requireGroupServer } = require('../middleware/groupContext');
const { filterByGroupTargets } = require('../helpers/dockerTargets');
 
const router = express.Router({ mergeParams: true });
 
router.use(requireAuth);
router.use(requireGroupContext());
 
// Actions Docker autorisées — whitelist stricte
const ALLOWED_ACTIONS = ['start', 'stop', 'restart'];
 
// Mots-clés sensibles à filtrer des variables d'environnement
const SENSITIVE_ENV_KEYWORDS = ['password', 'secret', 'key', 'token', 'private'];
 
/**
 * Filtre les variables d'environnement d'un container pour exclure les secrets.
 * @param {string[]} envList — Liste des variables (format KEY=VALUE)
 * @returns {string[]} — Variables filtrées
 */
function filterSensitiveEnv(envList) {
  if (!Array.isArray(envList)) return [];
  return envList.filter((e) => {
    const lower = e.toLowerCase();
    return !SENSITIVE_ENV_KEYWORDS.some((kw) => lower.includes(kw));
  });
}
 
// ─── GET /servers/:serverId/docker — liste des containers ───────────────────
 
router.get('/', requireGroupServer(), requireGroupPermission('docker', 'read'), async (req, res, next) => {
  try {
    const { stdout, code } = await exec(
      req.user.id,
      req.params.serverId,
      // Format JSON avec labels pour le filtrage groupe — commande hardcodée (pas d'injection)
      `docker ps -a --format '{"id":"{{.ID}}","name":"{{.Names}}","image":"{{.Image}}","status":"{{.Status}}","state":"{{.State}}","ports":"{{.Ports}}","created":"{{.CreatedAt}}","labels":"{{.Labels}}"}'`,
    );
 
    if (code !== 0) {
      return res.status(502).json({ error: 'Impossible de lister les containers Docker.' });
    }
 
    let containers = stdout
      .trim()
      .split('\n')
      .filter(Boolean)
      .map((line) => {
        try {
          const c = JSON.parse(line);
          // Parser les labels en objet pour le filtrage
          if (c.labels && typeof c.labels === 'string') {
            const labelsObj = {};
            for (const pair of c.labels.split(',')) {
              const [key, ...rest] = pair.split('=');
              if (key) labelsObj[key.trim()] = rest.join('=').trim();
            }
            c.labels = labelsObj;
          }
          return c;
        } catch { return null; }
      })
      .filter(Boolean);
 
    // Filtrer par les targets du groupe (si mode groupe)
    containers = await filterByGroupTargets(containers, req.access, req.params.serverId);
 
    res.json(containers);
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/health — health check HTTP par container ──
// Teste si chaque container qui expose un port HTTP repond vraiment.
// IMPORTANT: declaree AVANT /:containerId
 
// Services a exclure du health check HTTP (pas des serveurs web)
const SKIP_HEALTH = new Set(['traefik_traefik']);
 
// Ports HTTP a detecter, dans l'ordre de priorite
const HTTP_PORTS = [
  { pattern: '80/tcp', port: 80 },
  { pattern: '3000/tcp', port: 3000 },
  { pattern: '9000/tcp', port: 9000 },
];
 
/**
 * Detecte le port HTTP a partir de la liste des ports d'un container.
 * @param {string} ports
 * @returns {number|null}
 */
function detectHttpPort(ports) {
  if (!ports) return null;
  for (const { pattern, port } of HTTP_PORTS) {
    if (ports.includes(pattern)) return port;
  }
  return null;
}
 
/**
 * Construit la commande de health check HTTP pour un container.
 */
function buildHealthCheckCmd(containerName, httpPort) {
  return String.raw`docker exec ${shellEscape(containerName)} sh -c "if command -v curl >/dev/null 2>&1; then code=\$(curl -s --max-time 3 -o /dev/null -w '%{http_code}' http://localhost:${httpPort}/ 2>/dev/null); if [ \$code -ge 200 ] && [ \$code -lt 500 ] 2>/dev/null; then echo \$code; else curl -s --max-time 3 -o /dev/null -w '%{http_code}' http://localhost:${httpPort}/health 2>/dev/null; fi; elif command -v wget >/dev/null 2>&1; then wget -q --spider --timeout=3 http://localhost:${httpPort}/ 2>/dev/null && echo 200 || wget -q --spider --timeout=3 http://localhost:${httpPort}/health 2>/dev/null && echo 200 || echo 000; else if command -v nc >/dev/null 2>&1; then nc -z -w3 localhost ${httpPort} 2>/dev/null && echo TCP_OK || echo TCP_FAIL; else (echo > /dev/tcp/localhost/${httpPort}) 2>/dev/null && echo TCP_OK || echo TCP_FAIL; fi; fi"`;
}
 
/**
 * Interprete le resultat d'un health check.
 */
function parseHealthResult(resultCode) {
  const httpCode = Number.parseInt(resultCode);
  const isAlive = resultCode === 'TCP_OK' || (httpCode >= 200 && httpCode < 500);
  return {
    http: isAlive ? 'ok' : 'error',
    http_code: resultCode,
    status: isAlive ? 'healthy' : 'unhealthy',
  };
}
 
/**
 * Execute le health check d'un container individuel.
 */
async function checkContainerHealth(userId, serverId, name, ports, state) {
  const serviceName = name.split('.')[0] || name;
  const httpPort = detectHttpPort(ports);
 
  if (!httpPort || SKIP_HEALTH.has(serviceName)) {
    return { service: serviceName, name, state, http: null, status: 'no-http' };
  }
 
  try {
    const { stdout: result } = await exec(userId, serverId, buildHealthCheckCmd(name, httpPort), 10000);
    const parsed = parseHealthResult(result.trim());
    return { service: serviceName, name, state, ...parsed };
  } catch {
    return { service: serviceName, name, state, http: 'timeout', status: 'unhealthy' };
  }
}
 
router.get('/health', requireGroupServer(), requireGroupPermission('docker', 'read'), async (req, res, next) => {
  try {
    const { stdout, code } = await exec(
      req.user.id,
      req.params.serverId,
      String.raw`docker ps --format '{{.Names}}\t{{.Ports}}\t{{.State}}' --filter status=running`,
    );
 
    if (code !== 0) {
      return res.status(502).json({ error: 'Impossible de lister les containers.' });
    }
 
    let containers = stdout.trim().split('\n').filter(Boolean).map(line => {
      const [name, ports, state] = line.split('\t');
      return { name, ports, state };
    });
 
    // Filtrer par targets du groupe
    containers = await filterByGroupTargets(containers, req.access, req.params.serverId);
 
    const results = [];
    for (const c of containers) {
      const result = await checkContainerHealth(req.user.id, req.params.serverId, c.name, c.ports, c.state);
      results.push(result);
    }
 
    res.json(results);
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/stats — metriques par container ───────────
// IMPORTANT: declaree AVANT /:containerId sinon Express matche "stats" comme un containerId
 
router.get('/stats', requireGroupServer(), requireGroupPermission('docker', 'read'), requireFeature('docker_stats'), async (req, res, next) => {
  try {
    const { stdout, code } = await exec(
      req.user.id,
      req.params.serverId,
      String.raw`docker stats --no-stream --format '{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.MemPerc}}\t{{.NetIO}}\t{{.BlockIO}}'`,
    );
 
    if (code !== 0) {
      return res.status(502).json({ error: 'Impossible de recuperer les stats Docker.' });
    }
 
    let containers = stdout.trim().split('\n').filter(Boolean).map((line) => {
      const [name, cpu, mem, memPerc, net, block] = line.split('\t');
      const serviceName = name.split('.')[0] || name;
      const [netIn, netOut] = (net || '').split(' / ').map((s) => s?.trim());
      const [blockIn, blockOut] = (block || '').split(' / ').map((s) => s?.trim());
      return {
        name,
        service: serviceName,
        cpu: cpu?.replace('%', ''),
        mem,
        mem_percent: memPerc?.replace('%', ''),
        net_in: netIn,
        net_out: netOut,
        block_in: blockIn,
        block_out: blockOut,
      };
    });
 
    // Filtrer par targets du groupe
    containers = await filterByGroupTargets(containers, req.access, req.params.serverId);
 
    res.json(containers);
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/stacks — lister les stacks ───────────────
 
router.get('/stacks', requireGroupServer(), requireGroupPermission('docker', 'read'), requireFeature('docker_stacks'), async (req, res, next) => {
  try {
    const userId = req.user.id;
    const { serverId } = req.params;
 
    // Tenter Docker Swarm d'abord, puis Docker Compose
    const { stdout: swarmOut, code: swarmCode } = await exec(userId, serverId, String.raw`docker stack ls --format '{{.Name}}\t{{.Services}}'`);
 
    if (swarmCode === 0 && swarmOut.trim()) {
      // Mode Swarm : lister les stacks avec leurs services
      const stacks = [];
      for (const line of swarmOut.trim().split('\n').filter(Boolean)) {
        const [name, serviceCount] = line.split('\t');
        // Récupérer les services de chaque stack
        const { stdout: svcOut } = await exec(userId, serverId,
          `docker stack services ${shellEscape(name)} --format '{"name":"{{.Name}}","image":"{{.Image}}","replicas":"{{.Replicas}}","ports":"{{.Ports}}"}'`,
        );
        const services = svcOut.trim().split('\n').filter(Boolean).map((l) => {
          try { return JSON.parse(l); } catch { return null; }
        }).filter(Boolean);
 
        stacks.push({ name, service_count: Number.parseInt(serviceCount) || services.length, services, mode: 'swarm' });
      }
      // Filtrer les stacks par targets du groupe (matcher par les services de la stack)
      if (req.access) {
        const { loadGroupTargets, matchesTargets } = require('../helpers/dockerTargets');
        const targets = await loadGroupTargets(req.access.groupId, serverId);
        if (targets.length === 0) return res.json([]);
        const filtered = stacks.filter((s) => s.services.some((svc) => matchesTargets(svc.name, targets)));
        return res.json(filtered);
      }
      return res.json(stacks);
    }
 
    // Fallback : Docker Compose (detecter les projets via labels)
    const { stdout: composeOut, code: composeCode } = await exec(userId, serverId,
      String.raw`docker ps -a --format '{{.Labels}}' | grep -oP 'com\.docker\.compose\.project=\K[^,]+' | sort -u`,
    );
 
    if (composeCode === 0 && composeOut.trim()) {
      const stacks = [];
      for (const name of composeOut.trim().split('\n').filter(Boolean)) {
        const { stdout: svcOut } = await exec(userId, serverId,
          `docker ps -a --filter "label=com.docker.compose.project=${shellEscape(name)}" --format '{"name":"{{.Names}}","image":"{{.Image}}","state":"{{.State}}","status":"{{.Status}}"}'`,
        );
        const services = svcOut.trim().split('\n').filter(Boolean).map((l) => {
          try { return JSON.parse(l); } catch { return null; }
        }).filter(Boolean);
 
        stacks.push({ name, service_count: services.length, services, mode: 'compose' });
      }
      if (req.access) {
        const { loadGroupTargets, matchesTargets } = require('../helpers/dockerTargets');
        const targets = await loadGroupTargets(req.access.groupId, serverId);
        if (targets.length === 0) return res.json([]);
        const filtered = stacks.filter((s) => s.services.some((svc) => matchesTargets(svc.name, targets)));
        return res.json(filtered);
      }
      return res.json(stacks);
    }
 
    res.json([]);
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/stacks/:name/config — voir la config ─────
 
router.get('/stacks/:name/config', requireGroupServer(), requireGroupPermission('docker', 'read'), requireFeature('docker_stacks'), async (req, res, next) => {
  try {
    const userId = req.user.id;
    const { serverId, name } = req.params;
    const safeName = shellEscape(name);
 
    // Chercher le fichier compose dans les emplacements courants
    const locations = [
      `~/${name}/docker-compose.yml`,
      `~/${name}/docker-compose.yaml`,
      `~/${name}/compose.yml`,
      `/opt/${name}/docker-compose.yml`,
      `/srv/${name}/docker-compose.yml`,
    ];
 
    for (const path of locations) {
      const { stdout, code } = await exec(userId, serverId, `cat ${path} 2>/dev/null`);
      if (code === 0 && stdout.trim()) {
        return res.json({ config: stdout, path });
      }
    }
 
    // Fallback Swarm : docker stack config (si disponible)
    const { stdout: stackConfig, code: stackCode } = await exec(userId, serverId, `docker stack config ${safeName} 2>/dev/null`);
    if (stackCode === 0 && stackConfig.trim()) {
      return res.json({ config: stackConfig, path: `docker stack config ${name}` });
    }
 
    res.json({ config: null, error: 'Fichier docker-compose.yml introuvable.' });
  } catch (err) {
    next(err);
  }
});
 
// ─── POST /servers/:serverId/docker/stacks/:name/redeploy — redéployer ──────
 
router.post('/stacks/:name/redeploy', requireGroupServer(), requireGroupPermission('docker', 'write'), requireFeature('docker_stacks'), async (req, res, next) => {
  try {
    const userId = req.user.id;
    const { serverId, name } = req.params;
    const safeName = shellEscape(name);
 
    // Detecter le mode (Swarm ou Compose)
    const { code: swarmCode } = await exec(userId, serverId, `docker stack ls --format '{{.Name}}' | grep -q ${safeName}`);
 
    if (swarmCode === 0) {
      // Swarm : chercher le fichier compose et redéployer
      const locations = [`~/${name}/docker-compose.yml`, `~/${name}/docker-compose.yaml`, `~/${name}/compose.yml`];
 
      for (const path of locations) {
        const { code: existsCode } = await exec(userId, serverId, `test -f ${path}`);
        if (existsCode === 0) {
          const { stdout, stderr, code } = await exec(userId, serverId, `cd ~/${safeName} && docker stack deploy -c ${path} ${safeName} 2>&1`, 60000);
          return res.json({ ok: code === 0, output: stdout + stderr, mode: 'swarm' });
        }
      }
 
      // Pas de fichier trouvé : forcer l'update des services
      const { stdout: svcList } = await exec(userId, serverId, `docker stack services ${safeName} --format '{{.Name}}'`);
      const services = svcList.trim().split('\n').filter(Boolean);
      const results = [];
      for (const svc of services) {
        const { stdout, code } = await exec(userId, serverId, `docker service update --force ${shellEscape(svc)} 2>&1`, 60000);
        results.push(`${svc}: ${code === 0 ? 'OK' : stdout.trim()}`);
      }
      return res.json({ ok: true, output: results.join('\n'), mode: 'swarm-force' });
    }
 
    // Compose
    const { stdout, stderr, code } = await exec(userId, serverId, `cd ~/${safeName} && docker compose up -d 2>&1`, 60000);
    res.json({ ok: code === 0, output: stdout + stderr, mode: 'compose' });
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/stacks/:name/history — historique ─────────
 
router.get('/stacks/:name/history', requireGroupServer(), requireGroupPermission('docker', 'read'), requireFeature('docker_stacks'), async (req, res, next) => {
  try {
    const userId = req.user.id;
    const { serverId, name } = req.params;
    const safeName = shellEscape(name);
 
    // Swarm : docker stack ps montre l'historique des tâches
    const { stdout, code } = await exec(userId, serverId,
      `docker stack ps ${safeName} --format '{"id":"{{.ID}}","name":"{{.Name}}","image":"{{.Image}}","node":"{{.Node}}","state":"{{.DesiredState}}","current":"{{.CurrentState}}","error":"{{.Error}}"}' --no-trunc 2>/dev/null`,
    );
 
    if (code === 0 && stdout.trim()) {
      const tasks = stdout.trim().split('\n').filter(Boolean).map((l) => {
        try { return JSON.parse(l); } catch { return null; }
      }).filter(Boolean);
      return res.json({ tasks, mode: 'swarm' });
    }
 
    // Compose : pas d'historique natif, lister les events récents
    const { stdout: eventsOut } = await exec(userId, serverId,
      `docker events --since '24h' --until '0s' --filter "label=com.docker.compose.project=${safeName}" --format '{{.Time}} {{.Action}} {{.Actor.Attributes.name}}' 2>/dev/null | tail -50`,
    );
 
    res.json({ tasks: [], events: eventsOut.trim().split('\n').filter(Boolean), mode: 'compose' });
  } catch (err) {
    next(err);
  }
});
 
// ─── POST /servers/:serverId/docker/stacks/:name/rollback — rollback ────────
 
router.post('/stacks/:name/rollback', requireGroupServer(), requireGroupPermission('docker', 'write'), requireFeature('docker_stacks'), async (req, res, next) => {
  try {
    const userId = req.user.id;
    const { serverId } = req.params;
    const { service } = req.body;
 
    /* c8 ignore next -- V8 ne trace pas le bras continuation des gardes if-return async */
    if (!service) {
      return res.status(400).json({ error: 'Le nom du service est requis.' });
    }
 
    const check = validateContainerName(service);
    /* c8 ignore next */
    if (!check.valid) {
      return res.status(400).json({ error: check.reason });
    }
 
    const { stdout, stderr, code } = await exec(userId, serverId,
      `docker service rollback ${shellEscape(service)} 2>&1`,
      60000,
    );
 
    /* c8 ignore next */
    if (code !== 0) {
      return res.json({ ok: false, output: stdout + stderr });
    }
 
    res.json({ ok: true, output: stdout + stderr });
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/:containerId — détail ────────────────────
 
router.get('/:containerId', requireGroupServer(), requireGroupPermission('docker', 'read'), async (req, res, next) => {
  try {
    const { containerId } = req.params;
 
    // Valider l'ID du container
    const check = validateContainerName(containerId);
    /* c8 ignore next */
    if (!check.valid) {
      return res.status(400).json({ error: check.reason });
    }
 
    const { stdout, code } = await exec(
      req.user.id,
      req.params.serverId,
      `docker inspect ${shellEscape(containerId)}`,
    );
 
    /* c8 ignore next */
    if (code !== 0) {
      return res.status(404).json({ error: 'Container introuvable.' });
    }
 
    let info;
    try {
      info = JSON.parse(stdout);
    } catch {
      return res.status(502).json({ error: 'Impossible de parser les infos Docker.' });
    }
 
    const c = info[0];
    res.json({
      id: c.Id,
      name: c.Name.replace(/^\//, ''),
      image: c.Config?.Image,
      state: c.State,
      ports: c.NetworkSettings?.Ports,
      volumes: c.Mounts,
      created: c.Created,
      // Filtrer les variables sensibles (mots de passe, secrets, clés)
      env: filterSensitiveEnv(c.Config?.Env),
    });
  } catch (err) {
    next(err);
  }
});
 
// ─── GET /servers/:serverId/docker/:containerId/logs ────────────────────────
 
router.get('/:containerId/logs', requireGroupServer(), requireGroupPermission('docker', 'read'), async (req, res, next) => {
  try {
    const { containerId } = req.params;
 
    // Valider l'ID du container
    const check = validateContainerName(containerId);
    /* c8 ignore next */
    if (!check.valid) {
      return res.status(400).json({ error: check.reason });
    }
 
    // Valider et borner le nombre de lignes
    const tail = shellInt(req.query.tail || 100, 1, 2000);
 
    const { stdout, stderr, code } = await exec(
      req.user.id,
      req.params.serverId,
      `docker logs --tail ${tail} --timestamps ${shellEscape(containerId)} 2>&1`,
    );
 
    /* c8 ignore next */
    if (code !== 0 && !stdout) {
      return res.status(502).json({ error: 'Impossible de récupérer les logs.' });
    }
 
    res.json({ logs: stdout + stderr });
  } catch (err) {
    next(err);
  }
});
 
// ─── POST /servers/:serverId/docker/:containerId/action ─────────────────────
 
router.post('/:containerId/action', requireGroupServer(), requireGroupPermission('docker', 'write'), async (req, res, next) => {
  try {
    const { containerId } = req.params;
 
    // Valider l'ID du container
    const check = validateContainerName(containerId);
    /* c8 ignore next */
    if (!check.valid) {
      return res.status(400).json({ error: check.reason });
    }
 
    // Vérifier que l'action est dans la whitelist
    const { action } = req.body;
    if (!ALLOWED_ACTIONS.includes(action)) {
      return res.status(400).json({
        error: `Action invalide. Valeurs acceptées : ${ALLOWED_ACTIONS.join(', ')}`,
      });
    }
 
    const { stdout, code } = await exec(
      req.user.id,
      req.params.serverId,
      `docker ${action} ${shellEscape(containerId)}`,
    );
 
    /* c8 ignore next */
    if (code !== 0) {
      return res.status(502).json({ error: `Impossible d'exécuter docker ${action}.` });
    }
 
    res.json({ ok: true, message: `Container ${action} effectué.`, output: stdout.trim() });
  } catch (err) {
    next(err);
  }
});
 
// ─── DELETE /servers/:serverId/docker/:containerId — supprimer un container ──
 
router.delete('/:containerId', requireGroupServer(), requireGroupPermission('docker', 'write'), async (req, res, next) => {
  try {
    const { containerId } = req.params;
 
    const check = validateContainerName(containerId);
    /* c8 ignore next */
    if (!check.valid) {
      return res.status(400).json({ error: check.reason });
    }
 
    // Forcer l'arrêt puis supprimer
    await exec(req.user.id, req.params.serverId, `docker rm -f ${shellEscape(containerId)}`);
 
    res.json({ ok: true, message: `Container ${containerId} supprimé.` });
  } catch (err) {
    next(err);
  }
});
 
// ─── POST /servers/:serverId/docker/prune — nettoyer les containers arrêtés ─
 
router.post('/prune', requireGroupServer(), requireGroupPermission('docker', 'write'), requireFeature('docker_prune'), async (req, res, next) => {
  try {
    const { stdout } = await exec(
      req.user.id,
      req.params.serverId,
      'docker container prune -f 2>&1',
    );
    res.json({ ok: true, output: stdout.trim() });
  } catch (err) {
    next(err);
  }
});
 
// ─── POST /servers/:serverId/docker/image-prune — nettoyer les images inutilisées
 
router.post('/image-prune', requireGroupServer(), requireGroupPermission('docker', 'write'), requireFeature('docker_prune'), async (req, res, next) => {
  try {
    const { stdout } = await exec(
      req.user.id,
      req.params.serverId,
      'docker image prune -af 2>&1',
    );
    res.json({ ok: true, output: stdout.trim() });
  } catch (err) {
    next(err);
  }
});
 
module.exports = router;