1) Add e-mail tunnel support 2) Modify all __new__ to get_instance() 3) init docker build scripts

src/aios_kernel/email_tunnel.py

@@ -0,0 +1,143 @@
+import asyncio
+import aiosmtplib
+import aioimaplib
+import email
+from email.header import decode_header
+import mailparser
+import logging
+import time
+import datetime
+from .tunnel import AgentTunnel
+from .agent_message import AgentMsg
+
+from email.message import EmailMessage
+
+logger = logging.getLogger(__name__)
+
+class EmailTunnel(AgentTunnel):
+    @classmethod
+    def register_to_loader(cls):
+        async def load_email_tunnel(config:dict) -> AgentTunnel:
+            result_tunnel = EmailTunnel()
+            if await result_tunnel.load_from_config(config):
+                return result_tunnel
+            else:
+                return None
+            
+        AgentTunnel.register_loader("EmailTunnel",load_email_tunnel)
+
+    async def load_from_config(self,config:dict)->bool:
+        self.target_id = config["target"]
+        self.tunnel_id = config["tunnel_id"]
+
+        self.type = "TelegramTunnel"
+        self.email = config["email"]
+        self.imap_server = config["imap"]
+        s = self.imap_server.split(":")
+        if len(s) == 2:
+            self.imap_server = s[0]
+            self.imap_port = int(s[1])
+
+        self.smtp_server = config["smtp"]   
+        s = self.smtp_server.split(":")
+        if len(s) == 2:
+            self.smtp_server = s[0]
+            self.smtp_port = int(s[1])
+
+        self.login_user = config["user"]
+        self.login_password = config["password"]
+        self.folder = config["folder"]
+        self.check_interval = config["interval"]
+
+        return True  
+    
+    def __init__(self) -> None:
+        super().__init__()
+        self.is_start = False
+        self.read_email = {}
+
+    async def on_new_email(self,mail:mailparser.MailParser) -> None:
+        remote_email_addr = mail.from_[0][1]
+        remote_user_name = remote_email_addr.split("@")[0] 
+        agent_msg = self.conver_mail_to_agent_msg(mail)
+        agent_msg.sender = remote_user_name
+        agent_msg.target = self.target_id
+        self.ai_bus.register_message_handler(remote_user_name, self._process_message)
+
+        resp_msg = await self.ai_bus.send_message(agent_msg)
+        if resp_msg is None:
+            await self.reply_email(remote_email_addr,"Sorry, I can't understand your message","")
+        else:
+            if resp_msg.body_mime is None:
+                await self.reply_email(remote_email_addr,"result",resp_msg.body)
+
+    async def reply_email(self,target_email:str,title:str,msg:str) -> None:
+        email_msg = EmailMessage()
+        email_msg['Subject'] = f"Reply: {title}"
+        email_msg['From'] = self.email
+        email_msg['To'] = target_email
+        email_msg.set_content(msg)
+
+        await aiosmtplib.send(
+            email_msg,
+            hostname = self.smtp_server,
+            port=self.smtp_port,
+            username=self.login_user,
+            password=self.login_password,
+            )
+
+
+
+    def conver_mail_to_agent_msg(self,mail:mailparser.MailParser) -> AgentMsg:
+        msg = AgentMsg()
+        msg.set("",self.target_id,mail.text_plain[0])
+        msg.topic = "email"
+        return msg
+
+    async def check_email(self) -> None:
+        self.last_check_num = 0
+        self.last_check_time = datetime.datetime.now()
+        while True:
+            if self.is_start == False:
+                return
+            
+            await asyncio.sleep(self.check_interval)
+            imap_client = aioimaplib.IMAP4_SSL(host=self.imap_server,port=self.imap_port)
+            await imap_client.wait_hello_from_server()
+            await imap_client.login(self.login_user, self.login_password)
+
+            date_since = self.last_check_time.strftime("%d-%b-%Y")
+            
+            await imap_client.select(self.folder)
+            status, messages = await imap_client.search('UNSEEN',charset='US-ASCII')
+            self.last_check_time = datetime.datetime.now()
+            if status == "OK":
+                message_numbers = messages[0].split()
+                for num in message_numbers:
+                    num = int(num)
+                    if self.read_email.get(num) is not None:
+                        continue
+                    
+                    status, email_data = await imap_client.fetch(str(num), "(RFC822)")
+                    if status == "OK":
+                        #r = email.message_from_bytes(email_data[1])
+                        mail = mailparser.parse_from_bytes(email_data[1])
+                        self.read_email[num] = mail
+                        await self.on_new_email(mail)
+
+            await imap_client.logout()
+
+    async def start(self) -> bool:
+        if self.is_start:
+            logger.warning(f"tunnel {self.tunnel_id} is already started")
+            return False
+        self.is_start = True   
+
+        asyncio.create_task(self.check_email())
+        return True
+
+    async def close(self) -> None:
+        self.is_start = False
+
+    async def _process_message(self, msg: AgentMsg) -> None:
+        logger.warn(f"process message {msg.msg_id} from {msg.sender} to {msg.target}")