add list command

[remote-debug.git] / suanzi-support

diff --git a/suanzi-support b/suanzi-support
index 41ed9fc..eca6e9b 100755 (executable)
--- a/suanzi-support
+++ b/suanzi-support
@@ -1,29 +1,29 @@
 #!/usr/bin/env python2
 
-# dependencies:
-#   1. pip install paho-mqtt
-#   2. apt-get install sshpass
-#
 from subprocess import call, Popen, PIPE, STDOUT
 import paho.mqtt.client as mqtt
 import shlex
-import os
 import random
 from uuid import getnode as get_mac
+import ast
+import sys
 
 MQTT_SERVER = 'mqtt.suanzi.ai'
 MQTT_PORT = 1883
+
+# The alive time new ssh session exist. It means if no client connect to this device through ssh tunnel in 5 minutes,
+# this new sessin will terminate.
 ALIVE_TIME = 60 * 5
 
 SSH_SERVER = 'autossh.suanzi.ai'
-PORT_RANGE = (20000, 30000)
+PORT_RANGE = (20000, 40000)
 USER = 'autossh'
 PASSWORD = 'hard2guess'
 
 def getAvailablePort(host, ports):
     while True:
         port = random.randint(ports[0], ports[1])
-        command = 'nc -z -v -w5 ' + host + ' ' + str(port)
+        command = 'nc -z -v -w3 ' + host + ' ' + str(port)
         p = Popen(command, shell=True, stdout=PIPE, stderr=STDOUT)
         pout = p.communicate()[0].strip()
         if p.returncode == 0:
@@ -33,41 +33,46 @@ def getAvailablePort(host, ports):
         else:
             print pout
 
+def get_mac_str():
+    mac = hex(get_mac())
+    return '{:0>12}'.format(mac[2:-1])
+
 def exec_ssh(port):
     if port == None:
         raise Exception('Port not avaliable')
-    #command = 'sshpass -p' + PASSWORD + ' ssh -o "ServerAliveInterval 30" -o "ServerAliveCountMax 1" -fCNR ' + str(port) +':localhost:22 ' + USER + '@' + SSH_SERVER
-    command = 'sshpass -p' + PASSWORD + ' ssh -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -fCR ' + str(port) +':localhost:22 ' + USER + '@' + SSH_SERVER + ' sleep ' + str(ALIVE_TIME)
+    command = 'sshpass -p' + PASSWORD + ' ssh -o "StrictHostKeyChecking=no"  -o "UserKnownHostsFile /dev/null" -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -fCR ' + str(port) +':localhost:22 ' + USER + '@' + SSH_SERVER + ' sleep ' + str(ALIVE_TIME)
     print command
     return call(shlex.split(command), shell=False)
 
 
 def on_connect(client, userdata, flags, rc):
-    #client.subscribe("rpdzkj-request")
-    client.subscribe(client.id + '-request')
+    client.subscribe(userdata['id'])
+    client.subscribe('all')
     print("Connected with result code "+str(rc))
 
 def on_message(client, userdata, msg):
-    print(msg.topic+" "+str(msg.payload))
-    if msg.topic == client.id + '-request':
-        print str(msg.payload)
-        port = getAvailablePort(SSH_SERVER, PORT_RANGE)
-        if exec_ssh(port) == 0:
-            client.publish(client.id + '-response', port)
-        else:
-            raise Exception ('run ssh failed')
+    print('Receive topic:' + msg.topic + ' payload: ' +str(msg.payload))
+    payload = ast.literal_eval(str(msg.payload))
+    from_id = payload['from']
+    if payload['type'] == 'request':
+        if payload['command'] == 'ssh':
+            port = getAvailablePort(SSH_SERVER, PORT_RANGE)
+            if exec_ssh(port) == 0:
+                response = {'from': userdata['id'], 'type':'response', 'command':payload['command'], 'data':port}
+                client.publish(payload['from'], str(response))
+            else:
+                raise Exception ('run ssh failed')
+        if payload['command'] == 'list':
+            response = {'from': userdata['id'], 'type':'response', 'command':payload['command'], 'data':'OK'}
+            client.publish(payload['from'], str(response))
+
 
-class MyClient(mqtt.Client):
-    def __init__(self, id):
-        mqtt.Client.__init__(self)
-        self.id = id
-        self.on_connect = on_connect
-        self.on_message = on_message
 
 if __name__ == '__main__':
-    mac = hex(get_mac())
-    id = os.getenv('USER') + '-' + '{:0>12}'.format(mac[2:13])
-    print 'id is: ' , id
-    client = MyClient(id)
+    id = get_mac_str()
+    print 'Mac: ', id
+    client = mqtt.Client(userdata={'id':id})
+    client.on_connect = on_connect
+    client.on_message = on_message
     client.connect(MQTT_SERVER, MQTT_PORT, 60)
     client.loop_forever()