Add support for hostname change. (#68)

* Add support for hostname change.

* Fix lint

* Fix lint p2

* Update network.py

API.md

@@ -176,6 +176,11 @@ Optional:
 ### Network
 
 - GET `/network/info`
+```json
+{
+    "hostname": ""
+}
+```
 
 - POST `/network/options`
 ```json

hassio/api/network.py

@@ -1,11 +1,19 @@
 """Init file for HassIO network rest api."""
 import logging
 
-from .util import api_process_hostcontrol
+import voluptuous as vol
+
+from .util import api_process, api_process_hostcontrol, api_validate
+from ..const import ATTR_HOSTNAME
 
 _LOGGER = logging.getLogger(__name__)
 
 
+SCHEMA_OPTIONS = vol.Schema({
+    vol.Optional(ATTR_HOSTNAME): vol.Coerce(str),
+})
+
+
 class APINetwork(object):
     """Handle rest api for network functions."""
 
@@ -15,12 +23,21 @@ class APINetwork(object):
         self.loop = loop
         self.host_control = host_control
 
-    @api_process_hostcontrol
-    def info(self, request):
+    @api_process
+    async def info(self, request):
         """Show network settings."""
-        pass
+        return {
+            ATTR_HOSTNAME: self.host_control.hostname,
+        }
 
     @api_process_hostcontrol
-    def options(self, request):
+    async def options(self, request):
         """Edit network settings."""
-        pass
+        body = await api_validate(SCHEMA_OPTIONS, request)
+
+        # hostname
+        if ATTR_HOSTNAME in body:
+            if self.host_control.hostname != body[ATTR_HOSTNAME]:
+                await self.host_control.set_hostname(body[ATTR_HOSTNAME])
+
+        return True

hassio/host_control.py

@@ -17,6 +17,7 @@ UNKNOWN = 'unknown'
 FEATURES_SHUTDOWN = 'shutdown'
 FEATURES_REBOOT = 'reboot'
 FEATURES_UPDATE = 'update'
+FEATURES_HOSTNAME = 'hostname'
 FEATURES_NETWORK_INFO = 'network_info'
 FEATURES_NETWORK_CONTROL = 'network_control'
 
@@ -117,3 +118,7 @@ class HostControl(object):
         if version:
             return self._send_command("update {}".format(version))
         return self._send_command("update")
+
+    def set_hostname(self, hostname):
+        """Update hostname on host."""
+        return self._send_command("hostname {}".format(hostname))