Fix security issues: IPC auth, message logging, container logs

- Add authorization checks to IPC task operations (pause/resume/cancel)
  to prevent cross-group task manipulation
- Only store message content for registered groups; unregistered chats
  only get metadata stored for group discovery
- Container logs now only include full input/output in debug mode;
  default logging omits sensitive message content

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/container-runner.ts

@@ -237,17 +237,25 @@ export async function runContainerAgent(
       clearTimeout(timeout);
       const duration = Date.now() - startTime;
 
-      // Always write stderr to log file for debugging
+      // Write container log file
       const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
       const logFile = path.join(logsDir, `container-${timestamp}.log`);
-      const logContent = [
+      const isVerbose = process.env.LOG_LEVEL === 'debug' || process.env.LOG_LEVEL === 'trace';
+
+      // Build log content - only include full input/output in verbose mode
+      const logLines = [
         `=== Container Run Log ===`,
         `Timestamp: ${new Date().toISOString()}`,
         `Group: ${group.name}`,
         `IsMain: ${input.isMain}`,
         `Duration: ${duration}ms`,
         `Exit Code: ${code}`,
-        ``,
+        ``
+      ];
+
+      if (isVerbose) {
+        // Full content logging only in debug/trace mode
+        logLines.push(
           `=== Input ===`,
           JSON.stringify(input, null, 2),
           ``,
@@ -262,9 +270,31 @@ export async function runContainerAgent(
           ``,
           `=== Stdout ===`,
           stdout
-      ].join('\n');
+        );
-      fs.writeFileSync(logFile, logContent);
+      } else {
-      logger.debug({ logFile }, 'Container log written');
+        // Minimal logging by default - no message content
+        logLines.push(
+          `=== Input Summary ===`,
+          `Prompt length: ${input.prompt.length} chars`,
+          `Session ID: ${input.sessionId || 'new'}`,
+          ``,
+          `=== Mounts ===`,
+          mounts.map(m => `${m.containerPath}${m.readonly ? ' (ro)' : ''}`).join('\n'),
+          ``
+        );
+
+        // Only include stderr/stdout if there was an error
+        if (code !== 0) {
+          logLines.push(
+            `=== Stderr (last 500 chars) ===`,
+            stderr.slice(-500),
+            ``
+          );
+        }
+      }
+
+      fs.writeFileSync(logFile, logLines.join('\n'));
+      logger.debug({ logFile, verbose: isVerbose }, 'Container log written');
 
       if (code !== 0) {
         logger.error({

src/db.ts

@@ -66,6 +66,19 @@ export function initDatabase(): void {
   } catch { /* column already exists */ }
 }
 
+/**
+ * Store chat metadata only (no message content).
+ * Used for all chats to enable group discovery without storing sensitive content.
+ */
+export function storeChatMetadata(chatJid: string, timestamp: string): void {
+  db.prepare(`INSERT OR REPLACE INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`)
+    .run(chatJid, chatJid, timestamp);
+}
+
+/**
+ * Store a message with full content.
+ * Only call this for registered groups where message history is needed.
+ */
 export function storeMessage(msg: proto.IWebMessageInfo, chatJid: string, isFromMe: boolean, pushName?: string): void {
   if (!msg.key) return;
 
@@ -81,8 +94,6 @@ export function storeMessage(msg: proto.IWebMessageInfo, chatJid: string, isFrom
   const senderName = pushName || sender.split('@')[0];
   const msgId = msg.key.id || '';
 
-  db.prepare(`INSERT OR REPLACE INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`)
-    .run(chatJid, chatJid, timestamp);
   db.prepare(`INSERT OR REPLACE INTO messages (id, chat_jid, sender, sender_name, content, timestamp, is_from_me) VALUES (?, ?, ?, ?, ?, ?, ?)`)
     .run(msgId, chatJid, sender, senderName, content, timestamp, isFromMe ? 1 : 0);
 }

src/index.ts

@@ -19,7 +19,7 @@ import {
   IPC_POLL_INTERVAL
 } from './config.js';
 import { RegisteredGroup, Session, NewMessage } from './types.js';
-import { initDatabase, storeMessage, getNewMessages, getMessagesSince, getAllTasks } from './db.js';
+import { initDatabase, storeMessage, storeChatMetadata, getNewMessages, getMessagesSince, getAllTasks, getTaskById } from './db.js';
 import { startSchedulerLoop } from './scheduler.js';
 import { runContainerAgent, writeTasksSnapshot } from './container-runner.js';
 
@@ -233,7 +233,7 @@ async function processTaskIpc(data: {
   isMain?: boolean;
 }): Promise<void> {
   // Import db functions dynamically to avoid circular deps
-  const { createTask, updateTask, deleteTask } = await import('./db.js');
+  const { createTask, updateTask, deleteTask, getTaskById: getTask } = await import('./db.js');
   const { CronExpressionParser } = await import('cron-parser');
 
   switch (data.type) {
@@ -271,22 +271,37 @@ async function processTaskIpc(data: {
 
     case 'pause_task':
       if (data.taskId) {
+        const task = getTask(data.taskId);
+        if (task && (data.isMain || task.group_folder === data.groupFolder)) {
           updateTask(data.taskId, { status: 'paused' });
           logger.info({ taskId: data.taskId }, 'Task paused via IPC');
+        } else {
+          logger.warn({ taskId: data.taskId, groupFolder: data.groupFolder }, 'Unauthorized task pause attempt');
+        }
       }
       break;
 
     case 'resume_task':
       if (data.taskId) {
+        const task = getTask(data.taskId);
+        if (task && (data.isMain || task.group_folder === data.groupFolder)) {
           updateTask(data.taskId, { status: 'active' });
           logger.info({ taskId: data.taskId }, 'Task resumed via IPC');
+        } else {
+          logger.warn({ taskId: data.taskId, groupFolder: data.groupFolder }, 'Unauthorized task resume attempt');
+        }
       }
       break;
 
     case 'cancel_task':
       if (data.taskId) {
+        const task = getTask(data.taskId);
+        if (task && (data.isMain || task.group_folder === data.groupFolder)) {
           deleteTask(data.taskId);
           logger.info({ taskId: data.taskId }, 'Task cancelled via IPC');
+        } else {
+          logger.warn({ taskId: data.taskId, groupFolder: data.groupFolder }, 'Unauthorized task cancel attempt');
+        }
       }
       break;
 
@@ -345,8 +360,17 @@ async function connectWhatsApp(): Promise<void> {
       if (!msg.message) continue;
       const chatJid = msg.key.remoteJid;
       if (!chatJid || chatJid === 'status@broadcast') continue;
+
+      const timestamp = new Date(Number(msg.messageTimestamp) * 1000).toISOString();
+
+      // Always store chat metadata for group discovery
+      storeChatMetadata(chatJid, timestamp);
+
+      // Only store full message content for registered groups
+      if (registeredGroups[chatJid]) {
         storeMessage(msg, chatJid, msg.key.fromMe || false, msg.pushName || undefined);
       }
+    }
   });
 }