added ip handler

backend/app/handlers/IPHandler.py

@@ -0,0 +1,42 @@
+import subprocess
+import netifaces
+
+
+class ChangeIP:
+    def __init__(self, ip_type, ip, netmask, gateway, hostname):
+
+        adapter = self.find_adapter()
+
+        if ip_type == "DHCP":
+            self.change_to_dhcp(adapter=adapter)
+        elif ip_type == "Static":
+            self.change_to_static(adapter=adapter, ip=ip, netmask=netmask, gateway=gateway)
+
+        self.change_hostname(hostname=hostname)
+        self.restart_adapter(adapter=adapter)
+
+    @staticmethod
+    def change_to_dhcp(adapter):
+        subprocess.call(['dhclient -r', adapter])
+
+    @staticmethod
+    def change_to_static(adapter, ip, netmask, gateway):
+        subprocess.call(['ifconfig', adapter, ip, 'netmask', netmask])
+        subprocess.call(['route add default gw', gateway, adapter])
+
+    @staticmethod
+    def restart_adapter(adapter):
+        subprocess.call(['ifconfig', adapter, 'down'])
+        subprocess.call(['ifconfig', adapter, 'up'])
+
+    @staticmethod
+    def find_adapter():
+        for i_name in netifaces.interfaces():
+            interface = netifaces.ifaddresses(i_name)[netifaces.AF_INET][0]
+            address = interface['addr'].split('.')[0]
+            if address == "10":
+                return str(i_name)
+
+    @staticmethod
+    def change_hostname(hostname):
+        subprocess.call(['hostnamectl set-hostname', "Chameleon-Vision-{}".format(hostname)])