Merge remote-tracking branch 'origin/main'

Optimize the display of Markdown titles in Lark card information.

.gitignore

@@ -14,6 +14,7 @@ docs/
 *.pywz
 *.pyzz
 .venv/
+venv/
 __pycache__/
 poetry.lock
 .pytest_cache/

README.md

@@ -16,10 +16,11 @@
 
 ⚡️ Delivers core agent functionality in just **~4,000** lines of code — **99% smaller** than Clawdbot's 430k+ lines.
 
-📏 Real-time line count: **3,562 lines** (run `bash core_agent_lines.sh` to verify anytime)
+📏 Real-time line count: **3,582 lines** (run `bash core_agent_lines.sh` to verify anytime)
 
 ## 📢 News
 
+- **2026-02-13** 🎉 Released v0.1.3.post7 — includes security hardening and multiple improvements. All users are recommended to upgrade to the latest version. See [release notes](https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7) for more details.
 - **2026-02-12** 🧠 Redesigned memory system — Less code, more reliable. Join the [discussion](https://github.com/HKUDS/nanobot/discussions/566) about it!
 - **2026-02-10** 🎉 Released v0.1.3.post6 with improvements! Check the updates [notes](https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post6) and our [roadmap](https://github.com/HKUDS/nanobot/discussions/431).
 - **2026-02-09** 💬 Added Slack, Email, and QQ support — nanobot now supports multiple chat platforms!

SECURITY.md

@@ -95,8 +95,8 @@ File operations have path traversal protection, but:
 - Consider using a firewall to restrict outbound connections if needed
 
 **WhatsApp Bridge:**
-- The bridge runs on `localhost:3001` by default
-- If exposing to network, use proper authentication and TLS
+- The bridge binds to `127.0.0.1:3001` (localhost only, not accessible from external network)
+- Set `bridgeToken` in config to enable shared-secret authentication between Python and Node.js
 - Keep authentication data in `~/.nanobot/whatsapp-auth` secure (mode 0700)
 
 ### 6. Dependency Security
@@ -224,7 +224,7 @@ If you suspect a security breach:
 ✅ **Secure Communication**
 - HTTPS for all external API calls
 - TLS for Telegram API
-- WebSocket security for WhatsApp bridge
+- WhatsApp bridge: localhost-only binding + optional token auth
 
 ## Known Limitations
 

bridge/src/index.ts

@@ -25,11 +25,12 @@ import { join } from 'path';
 
 const PORT = parseInt(process.env.BRIDGE_PORT || '3001', 10);
 const AUTH_DIR = process.env.AUTH_DIR || join(homedir(), '.nanobot', 'whatsapp-auth');
+const TOKEN = process.env.BRIDGE_TOKEN || undefined;
 
 console.log('🐈 nanobot WhatsApp Bridge');
 console.log('========================\n');
 
-const server = new BridgeServer(PORT, AUTH_DIR);
+const server = new BridgeServer(PORT, AUTH_DIR, TOKEN);
 
 // Handle graceful shutdown
 process.on('SIGINT', async () => {

bridge/src/server.ts

@@ -1,5 +1,6 @@
 /**
  * WebSocket server for Python-Node.js bridge communication.
+ * Security: binds to 127.0.0.1 only; optional BRIDGE_TOKEN auth.
  */
 
 import { WebSocketServer, WebSocket } from 'ws';
@@ -21,12 +22,13 @@ export class BridgeServer {
   private wa: WhatsAppClient | null = null;
   private clients: Set<WebSocket> = new Set();
 
-  constructor(private port: number, private authDir: string) {}
+  constructor(private port: number, private authDir: string, private token?: string) {}
 
   async start(): Promise<void> {
-    // Create WebSocket server
-    this.wss = new WebSocketServer({ port: this.port });
-    console.log(`🌉 Bridge server listening on ws://localhost:${this.port}`);
+    // Bind to localhost only — never expose to external network
+    this.wss = new WebSocketServer({ host: '127.0.0.1', port: this.port });
+    console.log(`🌉 Bridge server listening on ws://127.0.0.1:${this.port}`);
+    if (this.token) console.log('🔒 Token authentication enabled');
 
     // Initialize WhatsApp client
     this.wa = new WhatsAppClient({
@@ -38,35 +40,58 @@ export class BridgeServer {
 
     // Handle WebSocket connections
     this.wss.on('connection', (ws) => {
-      console.log('🔗 Python client connected');
-      this.clients.add(ws);
-
-      ws.on('message', async (data) => {
-        try {
-          const cmd = JSON.parse(data.toString()) as SendCommand;
-          await this.handleCommand(cmd);
-          ws.send(JSON.stringify({ type: 'sent', to: cmd.to }));
-        } catch (error) {
-          console.error('Error handling command:', error);
-          ws.send(JSON.stringify({ type: 'error', error: String(error) }));
-        }
-      });
-
-      ws.on('close', () => {
-        console.log('🔌 Python client disconnected');
-        this.clients.delete(ws);
-      });
-
-      ws.on('error', (error) => {
-        console.error('WebSocket error:', error);
-        this.clients.delete(ws);
-      });
+      if (this.token) {
+        // Require auth handshake as first message
+        const timeout = setTimeout(() => ws.close(4001, 'Auth timeout'), 5000);
+        ws.once('message', (data) => {
+          clearTimeout(timeout);
+          try {
+            const msg = JSON.parse(data.toString());
+            if (msg.type === 'auth' && msg.token === this.token) {
+              console.log('🔗 Python client authenticated');
+              this.setupClient(ws);
+            } else {
+              ws.close(4003, 'Invalid token');
+            }
+          } catch {
+            ws.close(4003, 'Invalid auth message');
+          }
+        });
+      } else {
+        console.log('🔗 Python client connected');
+        this.setupClient(ws);
+      }
     });
 
     // Connect to WhatsApp
     await this.wa.connect();
   }
 
+  private setupClient(ws: WebSocket): void {
+    this.clients.add(ws);
+
+    ws.on('message', async (data) => {
+      try {
+        const cmd = JSON.parse(data.toString()) as SendCommand;
+        await this.handleCommand(cmd);
+        ws.send(JSON.stringify({ type: 'sent', to: cmd.to }));
+      } catch (error) {
+        console.error('Error handling command:', error);
+        ws.send(JSON.stringify({ type: 'error', error: String(error) }));
+      }
+    });
+
+    ws.on('close', () => {
+      console.log('🔌 Python client disconnected');
+      this.clients.delete(ws);
+    });
+
+    ws.on('error', (error) => {
+      console.error('WebSocket error:', error);
+      this.clients.delete(ws);
+    });
+  }
+
   private async handleCommand(cmd: SendCommand): Promise<void> {
     if (cmd.type === 'send' && this.wa) {
       await this.wa.sendMessage(cmd.to, cmd.text);

nanobot/agent/loop.py

@@ -164,7 +164,20 @@ class AgentLoop:
         logger.info(f"Processing message from {msg.channel}:{msg.sender_id}: {preview}")
         
         # Get or create session
-        session = self.sessions.get_or_create(session_key or msg.session_key)
+        key = session_key or msg.session_key
+        session = self.sessions.get_or_create(key)
+        
+        # Handle slash commands
+        cmd = msg.content.strip().lower()
+        if cmd == "/new":
+            await self._consolidate_memory(session, archive_all=True)
+            session.clear()
+            self.sessions.save(session)
+            return OutboundMessage(channel=msg.channel, chat_id=msg.chat_id,
+                                  content="🐈 New session started. Memory consolidated.")
+        if cmd == "/help":
+            return OutboundMessage(channel=msg.channel, chat_id=msg.chat_id,
+                                  content="🐈 nanobot commands:\n/new — Start a new conversation\n/help — Show available commands")
         
         # Consolidate memory before processing if session is too large
         if len(session.messages) > self.memory_window:
@@ -243,7 +256,10 @@ class AgentLoop:
                 break
         
         if final_content is None:
-            final_content = "I've completed processing but have no response to give."
+            if iteration >= self.max_iterations:
+                final_content = f"Reached {self.max_iterations} iterations without completion."
+            else:
+                final_content = "I've completed processing but have no response to give."
         
         # Log response preview
         preview = final_content[:120] + "..." if len(final_content) > 120 else final_content
@@ -363,11 +379,17 @@ class AgentLoop:
             content=final_content
         )
     
-    async def _consolidate_memory(self, session) -> None:
+    async def _consolidate_memory(self, session, archive_all: bool = False) -> None:
         """Consolidate old messages into MEMORY.md + HISTORY.md, then trim session."""
+        if not session.messages:
+            return
         memory = MemoryStore(self.workspace)
-        keep_count = min(10, max(2, self.memory_window // 2))
-        old_messages = session.messages[:-keep_count]  # Everything except recent ones
+        if archive_all:
+            old_messages = session.messages
+            keep_count = 0
+        else:
+            keep_count = min(10, max(2, self.memory_window // 2))
+            old_messages = session.messages[:-keep_count]
         if not old_messages:
             return
         logger.info(f"Memory consolidation started: {len(session.messages)} messages, archiving {len(old_messages)}, keeping {keep_count}")
@@ -404,12 +426,10 @@ Respond with ONLY valid JSON, no markdown fences."""
                 ],
                 model=self.model,
             )
-            import json as _json
             text = (response.content or "").strip()
-            # Strip markdown fences that LLMs often add despite instructions
             if text.startswith("```"):
                 text = text.split("\n", 1)[-1].rsplit("```", 1)[0].strip()
-            result = _json.loads(text)
+            result = json.loads(text)
 
             if entry := result.get("history_entry"):
                 memory.append_history(entry)
@@ -417,8 +437,7 @@ Respond with ONLY valid JSON, no markdown fences."""
                 if update != current_memory:
                     memory.write_long_term(update)
 
-            # Trim session to recent messages
-            session.messages = session.messages[-keep_count:]
+            session.messages = session.messages[-keep_count:] if keep_count else []
             self.sessions.save(session)
             logger.info(f"Memory consolidation done, session trimmed to {len(session.messages)} messages")
         except Exception as e:

nanobot/channels/feishu.py

@@ -166,6 +166,10 @@ class FeishuChannel(BaseChannel):
         re.MULTILINE,
     )
 
+    _HEADING_RE = re.compile(r"^(#{1,6})\s+(.+)$", re.MULTILINE)
+
+    _CODE_BLOCK_RE = re.compile(r"(```[\s\S]*?```)", re.MULTILINE)
+
     @staticmethod
     def _parse_md_table(table_text: str) -> dict | None:
         """Parse a markdown table into a Feishu table element."""
@@ -185,17 +189,52 @@ class FeishuChannel(BaseChannel):
         }
 
     def _build_card_elements(self, content: str) -> list[dict]:
-        """Split content into markdown + table elements for Feishu card."""
+        """Split content into div/markdown + table elements for Feishu card."""
         elements, last_end = [], 0
         for m in self._TABLE_RE.finditer(content):
-            before = content[last_end:m.start()].strip()
-            if before:
-                elements.append({"tag": "markdown", "content": before})
+            before = content[last_end:m.start()]
+            if before.strip():
+                elements.extend(self._split_headings(before))
             elements.append(self._parse_md_table(m.group(1)) or {"tag": "markdown", "content": m.group(1)})
             last_end = m.end()
-        remaining = content[last_end:].strip()
+        remaining = content[last_end:]
+        if remaining.strip():
+            elements.extend(self._split_headings(remaining))
+        return elements or [{"tag": "markdown", "content": content}]
+
+    def _split_headings(self, content: str) -> list[dict]:
+        """Split content by headings, converting headings to div elements."""
+        protected = content
+        code_blocks = []
+        for m in self._CODE_BLOCK_RE.finditer(content):
+            code_blocks.append(m.group(1))
+            protected = protected.replace(m.group(1), f"\x00CODE{len(code_blocks)-1}\x00", 1)
+
+        elements = []
+        last_end = 0
+        for m in self._HEADING_RE.finditer(protected):
+            before = protected[last_end:m.start()].strip()
+            if before:
+                elements.append({"tag": "markdown", "content": before})
+            level = len(m.group(1))
+            text = m.group(2).strip()
+            elements.append({
+                "tag": "div",
+                "text": {
+                    "tag": "lark_md",
+                    "content": f"**{text}**",
+                },
+            })
+            last_end = m.end()
+        remaining = protected[last_end:].strip()
         if remaining:
             elements.append({"tag": "markdown", "content": remaining})
+
+        for i, cb in enumerate(code_blocks):
+            for el in elements:
+                if el.get("tag") == "markdown":
+                    el["content"] = el["content"].replace(f"\x00CODE{i}\x00", cb)
+
         return elements or [{"tag": "markdown", "content": content}]
 
     async def send(self, msg: OutboundMessage) -> None:

nanobot/channels/manager.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import asyncio
-from typing import Any, TYPE_CHECKING
+from typing import Any
 
 from loguru import logger
 
@@ -12,9 +12,6 @@ from nanobot.bus.queue import MessageBus
 from nanobot.channels.base import BaseChannel
 from nanobot.config.schema import Config
 
-if TYPE_CHECKING:
-    from nanobot.session.manager import SessionManager
-
 
 class ChannelManager:
     """
@@ -26,10 +23,9 @@ class ChannelManager:
     - Route outbound messages
     """
     
-    def __init__(self, config: Config, bus: MessageBus, session_manager: "SessionManager | None" = None):
+    def __init__(self, config: Config, bus: MessageBus):
         self.config = config
         self.bus = bus
-        self.session_manager = session_manager
         self.channels: dict[str, BaseChannel] = {}
         self._dispatch_task: asyncio.Task | None = None
         
@@ -46,7 +42,6 @@ class ChannelManager:
                     self.config.channels.telegram,
                     self.bus,
                     groq_api_key=self.config.providers.groq.api_key,
-                    session_manager=self.session_manager,
                 )
                 logger.info("Telegram channel enabled")
             except ImportError as e:

nanobot/channels/telegram.py

@@ -4,8 +4,6 @@ from __future__ import annotations
 
 import asyncio
 import re
-from typing import TYPE_CHECKING
-
 from loguru import logger
 from telegram import BotCommand, Update
 from telegram.ext import Application, CommandHandler, MessageHandler, filters, ContextTypes
@@ -16,9 +14,6 @@ from nanobot.bus.queue import MessageBus
 from nanobot.channels.base import BaseChannel
 from nanobot.config.schema import TelegramConfig
 
-if TYPE_CHECKING:
-    from nanobot.session.manager import SessionManager
-
 
 def _markdown_to_telegram_html(text: str) -> str:
     """
@@ -95,7 +90,7 @@ class TelegramChannel(BaseChannel):
     # Commands registered with Telegram's command menu
     BOT_COMMANDS = [
         BotCommand("start", "Start the bot"),
-        BotCommand("reset", "Reset conversation history"),
+        BotCommand("new", "Start a new conversation"),
         BotCommand("help", "Show available commands"),
     ]
     
@@ -104,12 +99,10 @@ class TelegramChannel(BaseChannel):
         config: TelegramConfig,
         bus: MessageBus,
         groq_api_key: str = "",
-        session_manager: SessionManager | None = None,
     ):
         super().__init__(config, bus)
         self.config: TelegramConfig = config
         self.groq_api_key = groq_api_key
-        self.session_manager = session_manager
         self._app: Application | None = None
         self._chat_ids: dict[str, int] = {}  # Map sender_id to chat_id for replies
         self._typing_tasks: dict[str, asyncio.Task] = {}  # chat_id -> typing loop task
@@ -132,8 +125,8 @@ class TelegramChannel(BaseChannel):
         
         # Add command handlers
         self._app.add_handler(CommandHandler("start", self._on_start))
-        self._app.add_handler(CommandHandler("reset", self._on_reset))
-        self._app.add_handler(CommandHandler("help", self._on_help))
+        self._app.add_handler(CommandHandler("new", self._forward_command))
+        self._app.add_handler(CommandHandler("help", self._forward_command))
         
         # Add message handler for text, photos, voice, documents
         self._app.add_handler(
@@ -229,40 +222,15 @@ class TelegramChannel(BaseChannel):
             "Type /help to see available commands."
         )
     
-    async def _on_reset(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
-        """Handle /reset command — clear conversation history."""
+    async def _forward_command(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
+        """Forward slash commands to the bus for unified handling in AgentLoop."""
         if not update.message or not update.effective_user:
             return
-        
-        chat_id = str(update.message.chat_id)
-        session_key = f"{self.name}:{chat_id}"
-        
-        if self.session_manager is None:
-            logger.warning("/reset called but session_manager is not available")
-            await update.message.reply_text("⚠️ Session management is not available.")
-            return
-        
-        session = self.session_manager.get_or_create(session_key)
-        msg_count = len(session.messages)
-        session.clear()
-        self.session_manager.save(session)
-        
-        logger.info(f"Session reset for {session_key} (cleared {msg_count} messages)")
-        await update.message.reply_text("🔄 Conversation history cleared. Let's start fresh!")
-    
-    async def _on_help(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
-        """Handle /help command — show available commands."""
-        if not update.message:
-            return
-        
-        help_text = (
-            "🐈 <b>nanobot commands</b>\n\n"
-            "/start — Start the bot\n"
-            "/reset — Reset conversation history\n"
-            "/help — Show this help message\n\n"
-            "Just send me a text message to chat!"
+        await self._handle_message(
+            sender_id=str(update.effective_user.id),
+            chat_id=str(update.message.chat_id),
+            content=update.message.text,
         )
-        await update.message.reply_text(help_text, parse_mode="HTML")
     
     async def _on_message(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
         """Handle incoming messages (text, photos, voice, documents)."""

nanobot/channels/whatsapp.py

@@ -42,6 +42,9 @@ class WhatsAppChannel(BaseChannel):
             try:
                 async with websockets.connect(bridge_url) as ws:
                     self._ws = ws
+                    # Send auth token if configured
+                    if self.config.bridge_token:
+                        await ws.send(json.dumps({"type": "auth", "token": self.config.bridge_token}))
                     self._connected = True
                     logger.info("Connected to WhatsApp bridge")
                     

nanobot/cli/commands.py

@@ -369,7 +369,7 @@ def gateway(
     )
     
     # Create channel manager
-    channels = ChannelManager(config, bus, session_manager=session_manager)
+    channels = ChannelManager(config, bus)
     
     if channels.enabled_channels:
         console.print(f"[green]✓[/green] Channels enabled: {', '.join(channels.enabled_channels)}")
@@ -410,7 +410,7 @@ def gateway(
 @app.command()
 def agent(
     message: str = typer.Option(None, "--message", "-m", help="Message to send to the agent"),
-    session_id: str = typer.Option("cli:default", "--session", "-s", help="Session ID"),
+    session_id: str = typer.Option("cli:direct", "--session", "-s", help="Session ID"),
     markdown: bool = typer.Option(True, "--markdown/--no-markdown", help="Render assistant output as Markdown"),
     logs: bool = typer.Option(False, "--logs/--no-logs", help="Show nanobot runtime logs during chat"),
 ):
@@ -639,14 +639,20 @@ def _get_bridge_dir() -> Path:
 def channels_login():
     """Link device via QR code."""
     import subprocess
+    from nanobot.config.loader import load_config
     
+    config = load_config()
     bridge_dir = _get_bridge_dir()
     
     console.print(f"{__logo__} Starting bridge...")
     console.print("Scan the QR code to connect.\n")
     
+    env = {**os.environ}
+    if config.channels.whatsapp.bridge_token:
+        env["BRIDGE_TOKEN"] = config.channels.whatsapp.bridge_token
+    
     try:
-        subprocess.run(["npm", "start"], cwd=bridge_dir, check=True)
+        subprocess.run(["npm", "start"], cwd=bridge_dir, check=True, env=env)
     except subprocess.CalledProcessError as e:
         console.print(f"[red]Bridge failed: {e}[/red]")
     except FileNotFoundError:

nanobot/config/schema.py

@@ -9,6 +9,7 @@ class WhatsAppConfig(BaseModel):
     """WhatsApp channel configuration."""
     enabled: bool = False
     bridge_url: str = "ws://localhost:3001"
+    bridge_token: str = ""  # Shared token for bridge auth (optional, recommended)
     allow_from: list[str] = Field(default_factory=list)  # Allowed phone numbers
 
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "nanobot-ai"
-version = "0.1.3.post6"
+version = "0.1.3.post7"
 description = "A lightweight personal AI assistant framework"
 requires-python = ">=3.11"
 license = {text = "MIT"}