Autotest: Move moblab-related RPC to moblab_rpc_interface.py.

This CL moves all RPCs that can only be run on moblab to moblab_rpc_interface.
Also move related unittests to moblab_rpc_interface_unittest.

BUG=chromium:641549
TEST=cros flash to a local moblab, upload boto key, then run a suite on it.

Change-Id: I8246282a4c7250350dd9a4e9043eaeba293ccb34
Reviewed-on: https://chromium-review.googlesource.com/377418
Commit-Ready: Xixuan Wu <xixuan@chromium.org>
Tested-by: Xixuan Wu <xixuan@chromium.org>
Reviewed-by: Fang Deng <fdeng@chromium.org>
Reviewed-by: Dan Shi <dshi@google.com>
diff --git a/frontend/afe/moblab_rpc_interface.py b/frontend/afe/moblab_rpc_interface.py
new file mode 100644
index 0000000..3b5f9d0
--- /dev/null
+++ b/frontend/afe/moblab_rpc_interface.py
@@ -0,0 +1,452 @@
+# Copyright (c) 2016 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+This module includes all moblab-related RPCs. These RPCs can only be run
+on moblab.
+"""
+
+# The boto module is only available/used in Moblab for validation of cloud
+# storage access. The module is not available in the test lab environment,
+# and the import error is handled.
+try:
+    import boto
+except ImportError:
+    boto = None
+
+import ConfigParser
+import logging
+import os
+import shutil
+import socket
+import re
+
+import common
+
+from autotest_lib.client.common_lib import error
+from autotest_lib.client.common_lib import global_config
+from autotest_lib.frontend.afe import rpc_utils
+from autotest_lib.server.hosts import moblab_host
+
+_CONFIG = global_config.global_config
+MOBLAB_BOTO_LOCATION = '/home/moblab/.boto'
+
+# Google Cloud Storage bucket url regex pattern. The pattern is used to extract
+# the bucket name from the bucket URL. For example, "gs://image_bucket/google"
+# should result in a bucket name "image_bucket".
+GOOGLE_STORAGE_BUCKET_URL_PATTERN = re.compile(
+        r'gs://(?P<bucket>[a-zA-Z][a-zA-Z0-9-_]*)/?.*')
+
+# Contants used in Json RPC field names.
+_IMAGE_STORAGE_SERVER = 'image_storage_server'
+_GS_ACCESS_KEY_ID = 'gs_access_key_id'
+_GS_SECRETE_ACCESS_KEY = 'gs_secret_access_key'
+_RESULT_STORAGE_SERVER = 'results_storage_server'
+_USE_EXISTING_BOTO_FILE = 'use_existing_boto_file'
+
+
+@rpc_utils.moblab_only
+def get_config_values():
+    """Returns all config values parsed from global and shadow configs.
+
+    Config values are grouped by sections, and each section is composed of
+    a list of name value pairs.
+    """
+    sections =_CONFIG.get_sections()
+    config_values = {}
+    for section in sections:
+        config_values[section] = _CONFIG.config.items(section)
+    return rpc_utils.prepare_for_serialization(config_values)
+
+
+def _write_config_file(config_file, config_values, overwrite=False):
+    """Writes out a configuration file.
+
+    @param config_file: The name of the configuration file.
+    @param config_values: The ConfigParser object.
+    @param ovewrite: Flag on if overwriting is allowed.
+    """
+    if not config_file:
+        raise error.RPCException('Empty config file name.')
+    if not overwrite and os.path.exists(config_file):
+        raise error.RPCException('Config file already exists.')
+
+    if config_values:
+        with open(config_file, 'w') as config_file:
+            config_values.write(config_file)
+
+
+def _read_original_config():
+    """Reads the orginal configuratino without shadow.
+
+    @return: A configuration object, see global_config_class.
+    """
+    original_config = global_config.global_config_class()
+    original_config.set_config_files(shadow_file='')
+    return original_config
+
+
+def _read_raw_config(config_file):
+    """Reads the raw configuration from a configuration file.
+
+    @param: config_file: The path of the configuration file.
+
+    @return: A ConfigParser object.
+    """
+    shadow_config = ConfigParser.RawConfigParser()
+    shadow_config.read(config_file)
+    return shadow_config
+
+
+def _get_shadow_config_from_partial_update(config_values):
+    """Finds out the new shadow configuration based on a partial update.
+
+    Since the input is only a partial config, we should not lose the config
+    data inside the existing shadow config file. We also need to distinguish
+    if the input config info overrides with a new value or reverts back to
+    an original value.
+
+    @param config_values: See get_moblab_settings().
+
+    @return: The new shadow configuration as ConfigParser object.
+    """
+    original_config = _read_original_config()
+    existing_shadow = _read_raw_config(_CONFIG.shadow_file)
+    for section, config_value_list in config_values.iteritems():
+        for key, value in config_value_list:
+            if original_config.get_config_value(section, key,
+                                                default='',
+                                                allow_blank=True) != value:
+                if not existing_shadow.has_section(section):
+                    existing_shadow.add_section(section)
+                existing_shadow.set(section, key, value)
+            elif existing_shadow.has_option(section, key):
+                existing_shadow.remove_option(section, key)
+    return existing_shadow
+
+
+def _update_partial_config(config_values):
+    """Updates the shadow configuration file with a partial config udpate.
+
+    @param config_values: See get_moblab_settings().
+    """
+    existing_config = _get_shadow_config_from_partial_update(config_values)
+    _write_config_file(_CONFIG.shadow_file, existing_config, True)
+
+
+@rpc_utils.moblab_only
+def update_config_handler(config_values):
+    """Update config values and override shadow config.
+
+    @param config_values: See get_moblab_settings().
+    """
+    original_config = _read_original_config()
+    new_shadow = ConfigParser.RawConfigParser()
+    for section, config_value_list in config_values.iteritems():
+        for key, value in config_value_list:
+            if original_config.get_config_value(section, key,
+                                                default='',
+                                                allow_blank=True) != value:
+                if not new_shadow.has_section(section):
+                    new_shadow.add_section(section)
+                new_shadow.set(section, key, value)
+
+    if not _CONFIG.shadow_file or not os.path.exists(_CONFIG.shadow_file):
+        raise error.RPCException('Shadow config file does not exist.')
+    _write_config_file(_CONFIG.shadow_file, new_shadow, True)
+
+    # TODO (sbasi) crbug.com/403916 - Remove the reboot command and
+    # instead restart the services that rely on the config values.
+    os.system('sudo reboot')
+
+
+@rpc_utils.moblab_only
+def reset_config_settings():
+    """Reset moblab shadow config."""
+    with open(_CONFIG.shadow_file, 'w') as config_file:
+        pass
+    os.system('sudo reboot')
+
+
+@rpc_utils.moblab_only
+def reboot_moblab():
+    """Simply reboot the device."""
+    os.system('sudo reboot')
+
+
+@rpc_utils.moblab_only
+def set_boto_key(boto_key):
+    """Update the boto_key file.
+
+    @param boto_key: File name of boto_key uploaded through handle_file_upload.
+    """
+    if not os.path.exists(boto_key):
+        raise error.RPCException('Boto key: %s does not exist!' % boto_key)
+    shutil.copyfile(boto_key, moblab_host.MOBLAB_BOTO_LOCATION)
+
+
+@rpc_utils.moblab_only
+def set_launch_control_key(launch_control_key):
+    """Update the launch_control_key file.
+
+    @param launch_control_key: File name of launch_control_key uploaded through
+            handle_file_upload.
+    """
+    if not os.path.exists(launch_control_key):
+        raise error.RPCException('Launch Control key: %s does not exist!' %
+                                 launch_control_key)
+    shutil.copyfile(launch_control_key,
+                    moblab_host.MOBLAB_LAUNCH_CONTROL_KEY_LOCATION)
+    # Restart the devserver service.
+    os.system('sudo restart moblab-devserver-init')
+
+
+###########Moblab Config Wizard RPCs #######################
+def _get_public_ip_address(socket_handle):
+    """Gets the public IP address.
+
+    Connects to Google DNS server using a socket and gets the preferred IP
+    address from the connection.
+
+    @param: socket_handle: a unix socket.
+
+    @return: public ip address as string.
+    """
+    try:
+        socket_handle.settimeout(1)
+        socket_handle.connect(('8.8.8.8', 53))
+        socket_name = socket_handle.getsockname()
+        if socket_name is not None:
+            logging.info('Got socket name from UDP socket.')
+            return socket_name[0]
+        logging.warn('Created UDP socket but with no socket_name.')
+    except socket.error:
+        logging.warn('Could not get socket name from UDP socket.')
+    return None
+
+
+def _get_network_info():
+    """Gets the network information.
+
+    TCP socket is used to test the connectivity. If there is no connectivity, try to
+    get the public IP with UDP socket.
+
+    @return: a tuple as (public_ip_address, connected_to_internet).
+    """
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    ip = _get_public_ip_address(s)
+    if ip is not None:
+        logging.info('Established TCP connection with well known server.')
+        return (ip, True)
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    return (_get_public_ip_address(s), False)
+
+
+@rpc_utils.moblab_only
+def get_network_info():
+    """Returns the server ip addresses, and if the server connectivity.
+
+    The server ip addresses as an array of strings, and the connectivity as a
+    flag.
+    """
+    network_info = {}
+    info = _get_network_info()
+    if info[0] is not None:
+        network_info['server_ips'] = [info[0]]
+    network_info['is_connected'] = info[1]
+
+    return rpc_utils.prepare_for_serialization(network_info)
+
+
+# Gets the boto configuration.
+def _get_boto_config():
+    """Reads the boto configuration from the boto file.
+
+    @return: Boto configuration as ConfigParser object.
+    """
+    boto_config = ConfigParser.ConfigParser()
+    boto_config.read(MOBLAB_BOTO_LOCATION)
+    return boto_config
+
+
+@rpc_utils.moblab_only
+def get_cloud_storage_info():
+    """RPC handler to get the cloud storage access information.
+    """
+    cloud_storage_info = {}
+    value =_CONFIG.get_config_value('CROS', _IMAGE_STORAGE_SERVER)
+    if value is not None:
+        cloud_storage_info[_IMAGE_STORAGE_SERVER] = value
+    value = _CONFIG.get_config_value('CROS', _RESULT_STORAGE_SERVER,
+            default=None)
+    if value is not None:
+        cloud_storage_info[_RESULT_STORAGE_SERVER] = value
+
+    boto_config = _get_boto_config()
+    sections = boto_config.sections()
+
+    if sections:
+        cloud_storage_info[_USE_EXISTING_BOTO_FILE] = True
+    else:
+        cloud_storage_info[_USE_EXISTING_BOTO_FILE] = False
+    if 'Credentials' in sections:
+        options = boto_config.options('Credentials')
+        if _GS_ACCESS_KEY_ID in options:
+            value = boto_config.get('Credentials', _GS_ACCESS_KEY_ID)
+            cloud_storage_info[_GS_ACCESS_KEY_ID] = value
+        if _GS_SECRETE_ACCESS_KEY in options:
+            value = boto_config.get('Credentials', _GS_SECRETE_ACCESS_KEY)
+            cloud_storage_info[_GS_SECRETE_ACCESS_KEY] = value
+
+    return rpc_utils.prepare_for_serialization(cloud_storage_info)
+
+
+def _get_bucket_name_from_url(bucket_url):
+    """Gets the bucket name from a bucket url.
+
+    @param: bucket_url: the bucket url string.
+    """
+    if bucket_url:
+        match = GOOGLE_STORAGE_BUCKET_URL_PATTERN.match(bucket_url)
+        if match:
+            return match.group('bucket')
+    return None
+
+
+def _is_valid_boto_key(key_id, key_secret):
+    """Checks if the boto key is valid.
+
+    @param: key_id: The boto key id string.
+    @param: key_secret: The boto key string.
+
+    @return: A tuple as (valid_boolean, details_string).
+    """
+    if not key_id or not key_secret:
+        return (False, "Empty key id or secret.")
+    conn = boto.connect_gs(key_id, key_secret)
+    try:
+        buckets = conn.get_all_buckets()
+        return (True, None)
+    except boto.exception.GSResponseError:
+        details = "The boto access key is not valid"
+        return (False, details)
+    finally:
+        conn.close()
+
+
+def _is_valid_bucket(key_id, key_secret, bucket_name):
+    """Checks if a bucket is valid and accessible.
+
+    @param: key_id: The boto key id string.
+    @param: key_secret: The boto key string.
+    @param: bucket name string.
+
+    @return: A tuple as (valid_boolean, details_string).
+    """
+    if not key_id or not key_secret or not bucket_name:
+        return (False, "Server error: invalid argument")
+    conn = boto.connect_gs(key_id, key_secret)
+    bucket = conn.lookup(bucket_name)
+    conn.close()
+    if bucket:
+        return (True, None)
+    return (False, "Bucket %s does not exist." % bucket_name)
+
+
+def _is_valid_bucket_url(key_id, key_secret, bucket_url):
+    """Validates the bucket url is accessible.
+
+    @param: key_id: The boto key id string.
+    @param: key_secret: The boto key string.
+    @param: bucket url string.
+
+    @return: A tuple as (valid_boolean, details_string).
+    """
+    bucket_name = _get_bucket_name_from_url(bucket_url)
+    if bucket_name:
+        return _is_valid_bucket(key_id, key_secret, bucket_name)
+    return (False, "Bucket url %s is not valid" % bucket_url)
+
+
+def _validate_cloud_storage_info(cloud_storage_info):
+    """Checks if the cloud storage information is valid.
+
+    @param: cloud_storage_info: The JSON RPC object for cloud storage info.
+
+    @return: A tuple as (valid_boolean, details_string).
+    """
+    valid = True
+    details = None
+    if not cloud_storage_info[_USE_EXISTING_BOTO_FILE]:
+        key_id = cloud_storage_info[_GS_ACCESS_KEY_ID]
+        key_secret = cloud_storage_info[_GS_SECRETE_ACCESS_KEY]
+        valid, details = _is_valid_boto_key(key_id, key_secret)
+
+        if valid:
+            valid, details = _is_valid_bucket_url(
+                key_id, key_secret, cloud_storage_info[_IMAGE_STORAGE_SERVER])
+
+        # allows result bucket to be empty.
+        if valid and cloud_storage_info[_RESULT_STORAGE_SERVER]:
+            valid, details = _is_valid_bucket_url(
+                key_id, key_secret, cloud_storage_info[_RESULT_STORAGE_SERVER])
+    return (valid, details)
+
+
+def _create_operation_status_response(is_ok, details):
+    """Helper method to create a operation status reponse.
+
+    @param: is_ok: Boolean for if the operation is ok.
+    @param: details: A detailed string.
+
+    @return: A serialized JSON RPC object.
+    """
+    status_response = {'status_ok': is_ok}
+    if details:
+        status_response['status_details'] = details
+    return rpc_utils.prepare_for_serialization(status_response)
+
+
+@rpc_utils.moblab_only
+def validate_cloud_storage_info(cloud_storage_info):
+    """RPC handler to check if the cloud storage info is valid.
+
+    @param cloud_storage_info: The JSON RPC object for cloud storage info.
+    """
+    valid, details = _validate_cloud_storage_info(cloud_storage_info)
+    return _create_operation_status_response(valid, details)
+
+
+@rpc_utils.moblab_only
+def submit_wizard_config_info(cloud_storage_info):
+    """RPC handler to submit the cloud storage info.
+
+    @param cloud_storage_info: The JSON RPC object for cloud storage info.
+    """
+    valid, details = _validate_cloud_storage_info(cloud_storage_info)
+    if not valid:
+        return _create_operation_status_response(valid, details)
+    config_update = {}
+    config_update['CROS'] = [
+        (_IMAGE_STORAGE_SERVER, cloud_storage_info[_IMAGE_STORAGE_SERVER]),
+        (_RESULT_STORAGE_SERVER, cloud_storage_info[_RESULT_STORAGE_SERVER])
+    ]
+    _update_partial_config(config_update)
+
+    if not cloud_storage_info[_USE_EXISTING_BOTO_FILE]:
+        boto_config = ConfigParser.RawConfigParser()
+        boto_config.add_section('Credentials')
+        boto_config.set('Credentials', _GS_ACCESS_KEY_ID,
+                        cloud_storage_info[_GS_ACCESS_KEY_ID])
+        boto_config.set('Credentials', _GS_SECRETE_ACCESS_KEY,
+                        cloud_storage_info[_GS_SECRETE_ACCESS_KEY])
+        _write_config_file(MOBLAB_BOTO_LOCATION, boto_config, True)
+
+    _CONFIG.parse_config_file()
+
+    # TODO(ntang): replace reboot with less intrusive reloading.
+    os.system('sudo reboot')
+
+    return _create_operation_status_response(True, None)
+
diff --git a/frontend/afe/moblab_rpc_interface_unittest.py b/frontend/afe/moblab_rpc_interface_unittest.py
new file mode 100644
index 0000000..1633405
--- /dev/null
+++ b/frontend/afe/moblab_rpc_interface_unittest.py
@@ -0,0 +1,466 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2016 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Unit tests for frontend/afe/moblab_rpc_interface.py."""
+
+import __builtin__
+# The boto module is only available/used in Moblab for validation of cloud
+# storage access. The module is not available in the test lab environment,
+# and the import error is handled.
+try:
+    import boto
+except ImportError:
+    boto = None
+import ConfigParser
+import logging
+import mox
+import StringIO
+import unittest
+
+import common
+
+from autotest_lib.client.common_lib import error
+from autotest_lib.client.common_lib import global_config
+from autotest_lib.client.common_lib import lsbrelease_utils
+from autotest_lib.frontend import setup_django_environment
+from autotest_lib.frontend.afe import frontend_test_utils
+from autotest_lib.frontend.afe import moblab_rpc_interface
+from autotest_lib.frontend.afe import rpc_utils
+from autotest_lib.server import utils
+from autotest_lib.server.hosts import moblab_host
+
+
+class MoblabRpcInterfaceTest(mox.MoxTestBase,
+                             frontend_test_utils.FrontendTestMixin):
+    """Unit tests for functions in moblab_rpc_interface.py."""
+
+    def setUp(self):
+        super(MoblabRpcInterfaceTest, self).setUp()
+        self._frontend_common_setup(fill_data=False)
+
+
+    def tearDown(self):
+        self._frontend_common_teardown()
+
+
+    def setIsMoblab(self, is_moblab):
+        """Set utils.is_moblab result.
+
+        @param is_moblab: Value to have utils.is_moblab to return.
+        """
+        self.mox.StubOutWithMock(utils, 'is_moblab')
+        utils.is_moblab().AndReturn(is_moblab)
+
+
+    def _mockReadFile(self, path, lines=[]):
+        """Mock out reading a file line by line.
+
+        @param path: Path of the file we are mock reading.
+        @param lines: lines of the mock file that will be returned when
+                      readLine() is called.
+        """
+        mockFile = self.mox.CreateMockAnything()
+        for line in lines:
+            mockFile.readline().AndReturn(line)
+        mockFile.readline()
+        mockFile.close()
+        open(path).AndReturn(mockFile)
+
+
+    def testMoblabOnlyDecorator(self):
+        """Ensure the moblab only decorator gates functions properly."""
+        self.setIsMoblab(False)
+        self.mox.ReplayAll()
+        self.assertRaises(error.RPCException,
+                          moblab_rpc_interface.get_config_values)
+
+
+    def testGetConfigValues(self):
+        """Ensure that the config object is properly converted to a dict."""
+        self.setIsMoblab(True)
+        config_mock = self.mox.CreateMockAnything()
+        moblab_rpc_interface._CONFIG = config_mock
+        config_mock.get_sections().AndReturn(['section1', 'section2'])
+        config_mock.config = self.mox.CreateMockAnything()
+        config_mock.config.items('section1').AndReturn([('item1', 'value1'),
+                                                        ('item2', 'value2')])
+        config_mock.config.items('section2').AndReturn([('item3', 'value3'),
+                                                        ('item4', 'value4')])
+
+        rpc_utils.prepare_for_serialization(
+            {'section1' : [('item1', 'value1'),
+                           ('item2', 'value2')],
+             'section2' : [('item3', 'value3'),
+                           ('item4', 'value4')]})
+        self.mox.ReplayAll()
+        moblab_rpc_interface.get_config_values()
+
+
+    def testUpdateConfig(self):
+        """Ensure that updating the config works as expected."""
+        self.setIsMoblab(True)
+        moblab_rpc_interface.os = self.mox.CreateMockAnything()
+
+        self.mox.StubOutWithMock(__builtin__, 'open')
+        self._mockReadFile(global_config.DEFAULT_CONFIG_FILE)
+
+        self.mox.StubOutWithMock(lsbrelease_utils, 'is_moblab')
+        lsbrelease_utils.is_moblab().AndReturn(True)
+
+        self._mockReadFile(global_config.DEFAULT_MOBLAB_FILE,
+                           ['[section1]', 'item1: value1'])
+
+        moblab_rpc_interface.os = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.path = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.path.exists(
+                moblab_rpc_interface._CONFIG.shadow_file).AndReturn(
+                True)
+        mockShadowFile = self.mox.CreateMockAnything()
+        mockShadowFileContents = StringIO.StringIO()
+        mockShadowFile.__enter__().AndReturn(mockShadowFileContents)
+        mockShadowFile.__exit__(mox.IgnoreArg(), mox.IgnoreArg(),
+                                mox.IgnoreArg())
+        open(moblab_rpc_interface._CONFIG.shadow_file,
+             'w').AndReturn(mockShadowFile)
+        moblab_rpc_interface.os.system('sudo reboot')
+
+        self.mox.ReplayAll()
+        moblab_rpc_interface.update_config_handler(
+                {'section1' : [('item1', 'value1'),
+                               ('item2', 'value2')],
+                 'section2' : [('item3', 'value3'),
+                               ('item4', 'value4')]})
+
+        # item1 should not be in the new shadow config as its updated value
+        # matches the original config's value.
+        self.assertEquals(
+                mockShadowFileContents.getvalue(),
+                '[section2]\nitem3 = value3\nitem4 = value4\n\n'
+                '[section1]\nitem2 = value2\n\n')
+
+
+    def testResetConfig(self):
+        """Ensure that reset opens the shadow_config file for writing."""
+        self.setIsMoblab(True)
+        config_mock = self.mox.CreateMockAnything()
+        moblab_rpc_interface._CONFIG = config_mock
+        config_mock.shadow_file = 'shadow_config.ini'
+        self.mox.StubOutWithMock(__builtin__, 'open')
+        mockFile = self.mox.CreateMockAnything()
+        file_contents = self.mox.CreateMockAnything()
+        mockFile.__enter__().AndReturn(file_contents)
+        mockFile.__exit__(mox.IgnoreArg(), mox.IgnoreArg(), mox.IgnoreArg())
+        open(config_mock.shadow_file, 'w').AndReturn(mockFile)
+        moblab_rpc_interface.os = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.system('sudo reboot')
+        self.mox.ReplayAll()
+        moblab_rpc_interface.reset_config_settings()
+
+
+    def testSetBotoKey(self):
+        """Ensure that the botokey path supplied is copied correctly."""
+        self.setIsMoblab(True)
+        boto_key = '/tmp/boto'
+        moblab_rpc_interface.os.path = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.path.exists(boto_key).AndReturn(
+                True)
+        moblab_rpc_interface.shutil = self.mox.CreateMockAnything()
+        moblab_rpc_interface.shutil.copyfile(
+                boto_key, moblab_rpc_interface.MOBLAB_BOTO_LOCATION)
+        self.mox.ReplayAll()
+        moblab_rpc_interface.set_boto_key(boto_key)
+
+
+    def testSetLaunchControlKey(self):
+        """Ensure that the Launch Control key path supplied is copied correctly.
+        """
+        self.setIsMoblab(True)
+        launch_control_key = '/tmp/launch_control'
+        moblab_rpc_interface.os = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.path = self.mox.CreateMockAnything()
+        moblab_rpc_interface.os.path.exists(launch_control_key).AndReturn(
+                True)
+        moblab_rpc_interface.shutil = self.mox.CreateMockAnything()
+        moblab_rpc_interface.shutil.copyfile(
+                launch_control_key,
+                moblab_host.MOBLAB_LAUNCH_CONTROL_KEY_LOCATION)
+        moblab_rpc_interface.os.system('sudo restart moblab-devserver-init')
+        self.mox.ReplayAll()
+        moblab_rpc_interface.set_launch_control_key(launch_control_key)
+
+
+    def testGetNetworkInfo(self):
+        """Ensure the network info is properly converted to a dict."""
+        self.setIsMoblab(True)
+
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_get_network_info')
+        moblab_rpc_interface._get_network_info().AndReturn(('10.0.0.1', True))
+        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
+
+        rpc_utils.prepare_for_serialization(
+               {'is_connected': True, 'server_ips': ['10.0.0.1']})
+        self.mox.ReplayAll()
+        moblab_rpc_interface.get_network_info()
+        self.mox.VerifyAll()
+
+
+    def testGetNetworkInfoWithNoIp(self):
+        """Queries network info with no public IP address."""
+        self.setIsMoblab(True)
+
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_get_network_info')
+        moblab_rpc_interface._get_network_info().AndReturn((None, False))
+        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
+
+        rpc_utils.prepare_for_serialization(
+               {'is_connected': False})
+        self.mox.ReplayAll()
+        moblab_rpc_interface.get_network_info()
+        self.mox.VerifyAll()
+
+
+    def testGetNetworkInfoWithNoConnectivity(self):
+        """Queries network info with public IP address but no connectivity."""
+        self.setIsMoblab(True)
+
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_get_network_info')
+        moblab_rpc_interface._get_network_info().AndReturn(('10.0.0.1', False))
+        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
+
+        rpc_utils.prepare_for_serialization(
+               {'is_connected': False, 'server_ips': ['10.0.0.1']})
+        self.mox.ReplayAll()
+        moblab_rpc_interface.get_network_info()
+        self.mox.VerifyAll()
+
+
+    def testGetCloudStorageInfo(self):
+        """Ensure the cloud storage info is properly converted to a dict."""
+        self.setIsMoblab(True)
+        config_mock = self.mox.CreateMockAnything()
+        moblab_rpc_interface._CONFIG = config_mock
+        config_mock.get_config_value(
+            'CROS', 'image_storage_server').AndReturn('gs://bucket1')
+        config_mock.get_config_value(
+            'CROS', 'results_storage_server', default=None).AndReturn(
+                    'gs://bucket2')
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_get_boto_config')
+        moblab_rpc_interface._get_boto_config().AndReturn(config_mock)
+        config_mock.sections().AndReturn(['Credentials', 'b'])
+        config_mock.options('Credentials').AndReturn(
+            ['gs_access_key_id', 'gs_secret_access_key'])
+        config_mock.get(
+            'Credentials', 'gs_access_key_id').AndReturn('key')
+        config_mock.get(
+            'Credentials', 'gs_secret_access_key').AndReturn('secret')
+        rpc_utils.prepare_for_serialization(
+                {
+                    'gs_access_key_id': 'key',
+                    'gs_secret_access_key' : 'secret',
+                    'use_existing_boto_file': True,
+                    'image_storage_server' : 'gs://bucket1',
+                    'results_storage_server' : 'gs://bucket2'
+                })
+        self.mox.ReplayAll()
+        moblab_rpc_interface.get_cloud_storage_info()
+        self.mox.VerifyAll()
+
+
+    def testValidateCloudStorageInfo(self):
+        """ Ensure the cloud storage info validation flow."""
+        self.setIsMoblab(True)
+        cloud_storage_info = {
+            'use_existing_boto_file': False,
+            'gs_access_key_id': 'key',
+            'gs_secret_access_key': 'secret',
+            'image_storage_server': 'gs://bucket1',
+            'results_storage_server': 'gs://bucket2'}
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_is_valid_boto_key')
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_is_valid_bucket')
+        moblab_rpc_interface._is_valid_boto_key(
+                'key', 'secret').AndReturn((True, None))
+        moblab_rpc_interface._is_valid_bucket(
+                'key', 'secret', 'bucket1').AndReturn((True, None))
+        moblab_rpc_interface._is_valid_bucket(
+                'key', 'secret', 'bucket2').AndReturn((True, None))
+        rpc_utils.prepare_for_serialization(
+                {'status_ok': True })
+        self.mox.ReplayAll()
+        moblab_rpc_interface.validate_cloud_storage_info(cloud_storage_info)
+        self.mox.VerifyAll()
+
+
+    def testGetBucketNameFromUrl(self):
+        """Gets bucket name from bucket URL."""
+        self.assertEquals(
+            'bucket_name-123',
+            moblab_rpc_interface._get_bucket_name_from_url(
+                    'gs://bucket_name-123'))
+        self.assertEquals(
+            'bucket_name-123',
+            moblab_rpc_interface._get_bucket_name_from_url(
+                    'gs://bucket_name-123/'))
+        self.assertEquals(
+            'bucket_name-123',
+            moblab_rpc_interface._get_bucket_name_from_url(
+                    'gs://bucket_name-123/a/b/c'))
+        self.assertIsNone(moblab_rpc_interface._get_bucket_name_from_url(
+            'bucket_name-123/a/b/c'))
+
+
+    def testIsValidBotoKeyValid(self):
+        """Tests the boto key validation flow."""
+        if boto is None:
+            logging.info('skip test since boto module not installed')
+            return
+        conn = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(boto, 'connect_gs')
+        boto.connect_gs('key', 'secret').AndReturn(conn)
+        conn.get_all_buckets().AndReturn(['a', 'b'])
+        conn.close()
+        self.mox.ReplayAll()
+        valid, details = moblab_rpc_interface._is_valid_boto_key('key', 'secret')
+        self.assertTrue(valid)
+        self.mox.VerifyAll()
+
+
+    def testIsValidBotoKeyInvalid(self):
+        """Tests the boto key validation with invalid key."""
+        if boto is None:
+            logging.info('skip test since boto module not installed')
+            return
+        conn = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(boto, 'connect_gs')
+        boto.connect_gs('key', 'secret').AndReturn(conn)
+        conn.get_all_buckets().AndRaise(
+                boto.exception.GSResponseError('bad', 'reason'))
+        conn.close()
+        self.mox.ReplayAll()
+        valid, details = moblab_rpc_interface._is_valid_boto_key('key', 'secret')
+        self.assertFalse(valid)
+        self.assertEquals('The boto access key is not valid', details)
+        self.mox.VerifyAll()
+
+
+    def testIsValidBucketValid(self):
+        """Tests the bucket vaildation flow."""
+        if boto is None:
+            logging.info('skip test since boto module not installed')
+            return
+        conn = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(boto, 'connect_gs')
+        boto.connect_gs('key', 'secret').AndReturn(conn)
+        conn.lookup('bucket').AndReturn('bucket')
+        conn.close()
+        self.mox.ReplayAll()
+        valid, details = moblab_rpc_interface._is_valid_bucket(
+                'key', 'secret', 'bucket')
+        self.assertTrue(valid)
+        self.mox.VerifyAll()
+
+
+    def testIsValidBucketInvalid(self):
+        """Tests the bucket validation flow with invalid key."""
+        if boto is None:
+            logging.info('skip test since boto module not installed')
+            return
+        conn = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(boto, 'connect_gs')
+        boto.connect_gs('key', 'secret').AndReturn(conn)
+        conn.lookup('bucket').AndReturn(None)
+        conn.close()
+        self.mox.ReplayAll()
+        valid, details = moblab_rpc_interface._is_valid_bucket(
+                'key', 'secret', 'bucket')
+        self.assertFalse(valid)
+        self.assertEquals("Bucket bucket does not exist.", details)
+        self.mox.VerifyAll()
+
+
+    def testGetShadowConfigFromPartialUpdate(self):
+        """Tests getting shadow configuration based on partial upate."""
+        partial_config = {
+                'section1': [
+                    ('opt1', 'value1'),
+                    ('opt2', 'value2'),
+                    ('opt3', 'value3'),
+                    ('opt4', 'value4'),
+                    ]
+                }
+        shadow_config_str = "[section1]\nopt2 = value2_1\nopt4 = value4_1"
+        shadow_config = ConfigParser.ConfigParser()
+        shadow_config.readfp(StringIO.StringIO(shadow_config_str))
+        original_config = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_read_original_config')
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_read_raw_config')
+        moblab_rpc_interface._read_original_config().AndReturn(original_config)
+        moblab_rpc_interface._read_raw_config(
+                moblab_rpc_interface._CONFIG.shadow_file).AndReturn(shadow_config)
+        original_config.get_config_value(
+                'section1', 'opt1',
+                allow_blank=True, default='').AndReturn('value1')
+        original_config.get_config_value(
+                'section1', 'opt2',
+                allow_blank=True, default='').AndReturn('value2')
+        original_config.get_config_value(
+                'section1', 'opt3',
+                allow_blank=True, default='').AndReturn('blah')
+        original_config.get_config_value(
+                'section1', 'opt4',
+                allow_blank=True, default='').AndReturn('blah')
+        self.mox.ReplayAll()
+        shadow_config = moblab_rpc_interface._get_shadow_config_from_partial_update(
+                partial_config)
+        # opt1 same as the original.
+        self.assertFalse(shadow_config.has_option('section1', 'opt1'))
+        # opt2 reverts back to original
+        self.assertFalse(shadow_config.has_option('section1', 'opt2'))
+        # opt3 is updated from original.
+        self.assertEquals('value3', shadow_config.get('section1', 'opt3'))
+        # opt3 in shadow but updated again.
+        self.assertEquals('value4', shadow_config.get('section1', 'opt4'))
+        self.mox.VerifyAll()
+
+
+    def testGetShadowConfigFromPartialUpdateWithNewSection(self):
+        """
+        Test getting shadown configuration based on partial update with new section.
+        """
+        partial_config = {
+                'section2': [
+                    ('opt5', 'value5'),
+                    ('opt6', 'value6'),
+                    ],
+                }
+        shadow_config_str = "[section1]\nopt2 = value2_1\n"
+        shadow_config = ConfigParser.ConfigParser()
+        shadow_config.readfp(StringIO.StringIO(shadow_config_str))
+        original_config = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_read_original_config')
+        self.mox.StubOutWithMock(moblab_rpc_interface, '_read_raw_config')
+        moblab_rpc_interface._read_original_config().AndReturn(original_config)
+        moblab_rpc_interface._read_raw_config(
+            moblab_rpc_interface._CONFIG.shadow_file).AndReturn(shadow_config)
+        original_config.get_config_value(
+                'section2', 'opt5',
+                allow_blank=True, default='').AndReturn('value5')
+        original_config.get_config_value(
+                'section2', 'opt6',
+                allow_blank=True, default='').AndReturn('blah')
+        self.mox.ReplayAll()
+        shadow_config = moblab_rpc_interface._get_shadow_config_from_partial_update(
+                partial_config)
+        # opt2 is still in shadow
+        self.assertEquals('value2_1', shadow_config.get('section1', 'opt2'))
+        # opt5 is not changed.
+        self.assertFalse(shadow_config.has_option('section2', 'opt5'))
+        # opt6 is updated.
+        self.assertEquals('value6', shadow_config.get('section2', 'opt6'))
+        self.mox.VerifyAll()
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/frontend/afe/rpc_utils.py b/frontend/afe/rpc_utils.py
index 4b3e383..95206bb 100644
--- a/frontend/afe/rpc_utils.py
+++ b/frontend/afe/rpc_utils.py
@@ -1,5 +1,5 @@
 #pylint: disable-msg=C0111
-"""\
+"""
 Utility functions for rpc_interface.py.  We keep them in a separate file so that
 only RPC interface functions go into that file.
 """
@@ -1277,6 +1277,17 @@
     return label
 
 
+# TODO: hide the following rpcs under is_moblab
+def moblab_only(func):
+    """Ensure moblab specific functions only run on Moblab devices."""
+    def verify(*args, **kwargs):
+        if not server_utils.is_moblab():
+            raise error.RPCException('RPC: %s can only run on Moblab Systems!',
+                                     func.__name__)
+        return func(*args, **kwargs)
+    return verify
+
+
 def route_rpc_to_master(func):
     """Route RPC to master AFE.
 
diff --git a/frontend/afe/site_rpc_interface.py b/frontend/afe/site_rpc_interface.py
index 9315fd2..0eb6054 100644
--- a/frontend/afe/site_rpc_interface.py
+++ b/frontend/afe/site_rpc_interface.py
@@ -1,26 +1,13 @@
-# pylint: disable-msg=C0111
-
 # Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 __author__ = 'cmasone@chromium.org (Chris Masone)'
 
-# The boto module is only available/used in Moblab for validation of cloud
-# storage access. The module is not available in the test lab environment,
-# and the import error is handled.
-try:
-    import boto
-except ImportError:
-    boto = None
 import common
-import ConfigParser
 import datetime
 import logging
 import os
-import re
-import shutil
-import socket
 
 from autotest_lib.frontend.afe import models
 from autotest_lib.client.common_lib import control_data
@@ -38,7 +25,6 @@
 from autotest_lib.server.cros.dynamic_suite import tools
 from autotest_lib.server.cros.dynamic_suite import suite as SuiteBase
 from autotest_lib.server.cros.dynamic_suite.suite import Suite
-from autotest_lib.server.hosts import moblab_host
 from autotest_lib.site_utils import host_history
 from autotest_lib.site_utils import job_history
 from autotest_lib.site_utils import server_manager_utils
@@ -46,30 +32,22 @@
 
 
 _CONFIG = global_config.global_config
-MOBLAB_BOTO_LOCATION = '/home/moblab/.boto'
 
-# Google Cloud Storage bucket url regex pattern. The pattern is used to extract
-# the bucket name from the bucket URL. For example, "gs://image_bucket/google"
-# should result in a bucket name "image_bucket".
-GOOGLE_STORAGE_BUCKET_URL_PATTERN = re.compile(
-        r'gs://(?P<bucket>[a-zA-Z][a-zA-Z0-9-_]*)/?.*')
-
-# Constants used in JSON RPC field names.
-_USE_EXISTING_BOTO_FILE = 'use_existing_boto_file'
-_GS_ACCESS_KEY_ID = 'gs_access_key_id'
-_GS_SECRETE_ACCESS_KEY = 'gs_secret_access_key'
-_IMAGE_STORAGE_SERVER = 'image_storage_server'
-_RESULT_STORAGE_SERVER = 'results_storage_server'
 # Relevant CrosDynamicSuiteExceptions are defined in client/common_lib/error.py.
 
 
 def canonicalize_suite_name(suite_name):
+    """Canonicalize the suite's name.
+
+    @param suite_name: the name of the suite.
+    """
     # Do not change this naming convention without updating
     # site_utils.parse_job_name.
     return 'test_suites/control.%s' % suite_name
 
 
 def formatted_now():
+    """Format the current datetime."""
     return datetime.datetime.now().strftime(time_utils.TIME_FMT)
 
 
@@ -171,6 +149,7 @@
     @param test_source_build: Build that contains the server-side test code.
     @param pool: Specify the pool of machines to use for scheduling
             purposes.
+    @param control_file: the control file of the job.
     @param check_hosts: require appropriate live hosts to exist in the lab.
     @param num: Specify the number of machines to schedule across (integer).
                 Leave unspecified or use None to use default sharding factor.
@@ -307,416 +286,6 @@
                                        keyvals=keyvals)
 
 
-# TODO: hide the following rpcs under is_moblab
-def moblab_only(func):
-    """Ensure moblab specific functions only run on Moblab devices."""
-    def verify(*args, **kwargs):
-        if not utils.is_moblab():
-            raise error.RPCException('RPC: %s can only run on Moblab Systems!',
-                                     func.__name__)
-        return func(*args, **kwargs)
-    return verify
-
-
-@moblab_only
-def get_config_values():
-    """Returns all config values parsed from global and shadow configs.
-
-    Config values are grouped by sections, and each section is composed of
-    a list of name value pairs.
-    """
-    sections =_CONFIG.get_sections()
-    config_values = {}
-    for section in sections:
-        config_values[section] = _CONFIG.config.items(section)
-    return rpc_utils.prepare_for_serialization(config_values)
-
-
-def _write_config_file(config_file, config_values, overwrite=False):
-    """Writes out a configuration file.
-
-    @param config_file: The name of the configuration file.
-    @param config_values: The ConfigParser object.
-    @param ovewrite: Flag on if overwriting is allowed.
-    """
-    if not config_file:
-        raise error.RPCException('Empty config file name.')
-    if not overwrite and os.path.exists(config_file):
-        raise error.RPCException('Config file already exists.')
-
-    if config_values:
-        with open(config_file, 'w') as config_file:
-            config_values.write(config_file)
-
-
-def _read_original_config():
-    """Reads the orginal configuratino without shadow.
-
-    @return: A configuration object, see global_config_class.
-    """
-    original_config = global_config.global_config_class()
-    original_config.set_config_files(shadow_file='')
-    return original_config
-
-
-def _read_raw_config(config_file):
-    """Reads the raw configuration from a configuration file.
-
-    @param: config_file: The path of the configuration file.
-
-    @return: A ConfigParser object.
-    """
-    shadow_config = ConfigParser.RawConfigParser()
-    shadow_config.read(config_file)
-    return shadow_config
-
-
-def _get_shadow_config_from_partial_update(config_values):
-    """Finds out the new shadow configuration based on a partial update.
-
-    Since the input is only a partial config, we should not lose the config
-    data inside the existing shadow config file. We also need to distinguish
-    if the input config info overrides with a new value or reverts back to
-    an original value.
-
-    @param config_values: See get_moblab_settings().
-
-    @return: The new shadow configuration as ConfigParser object.
-    """
-    original_config = _read_original_config()
-    existing_shadow = _read_raw_config(_CONFIG.shadow_file)
-    for section, config_value_list in config_values.iteritems():
-        for key, value in config_value_list:
-            if original_config.get_config_value(section, key,
-                                                default='',
-                                                allow_blank=True) != value:
-                if not existing_shadow.has_section(section):
-                    existing_shadow.add_section(section)
-                existing_shadow.set(section, key, value)
-            elif existing_shadow.has_option(section, key):
-                existing_shadow.remove_option(section, key)
-    return existing_shadow
-
-
-def _update_partial_config(config_values):
-    """Updates the shadow configuration file with a partial config udpate.
-
-    @param config_values: See get_moblab_settings().
-    """
-    existing_config = _get_shadow_config_from_partial_update(config_values)
-    _write_config_file(_CONFIG.shadow_file, existing_config, True)
-
-
-@moblab_only
-def update_config_handler(config_values):
-    """Update config values and override shadow config.
-
-    @param config_values: See get_moblab_settings().
-    """
-    original_config = _read_original_config()
-    new_shadow = ConfigParser.RawConfigParser()
-    for section, config_value_list in config_values.iteritems():
-        for key, value in config_value_list:
-            if original_config.get_config_value(section, key,
-                                                default='',
-                                                allow_blank=True) != value:
-                if not new_shadow.has_section(section):
-                    new_shadow.add_section(section)
-                new_shadow.set(section, key, value)
-
-    if not _CONFIG.shadow_file or not os.path.exists(_CONFIG.shadow_file):
-        raise error.RPCException('Shadow config file does not exist.')
-    _write_config_file(_CONFIG.shadow_file, new_shadow, True)
-
-    # TODO (sbasi) crbug.com/403916 - Remove the reboot command and
-    # instead restart the services that rely on the config values.
-    os.system('sudo reboot')
-
-
-@moblab_only
-def reset_config_settings():
-    with open(_CONFIG.shadow_file, 'w') as config_file:
-        pass
-    os.system('sudo reboot')
-
-
-@moblab_only
-def reboot_moblab():
-    """Simply reboot the device."""
-    os.system('sudo reboot')
-
-@moblab_only
-def set_boto_key(boto_key):
-    """Update the boto_key file.
-
-    @param boto_key: File name of boto_key uploaded through handle_file_upload.
-    """
-    if not os.path.exists(boto_key):
-        raise error.RPCException('Boto key: %s does not exist!' % boto_key)
-    shutil.copyfile(boto_key, moblab_host.MOBLAB_BOTO_LOCATION)
-
-
-@moblab_only
-def set_launch_control_key(launch_control_key):
-    """Update the launch_control_key file.
-
-    @param launch_control_key: File name of launch_control_key uploaded through
-            handle_file_upload.
-    """
-    if not os.path.exists(launch_control_key):
-        raise error.RPCException('Launch Control key: %s does not exist!' %
-                                 launch_control_key)
-    shutil.copyfile(launch_control_key,
-                    moblab_host.MOBLAB_LAUNCH_CONTROL_KEY_LOCATION)
-    # Restart the devserver service.
-    os.system('sudo restart moblab-devserver-init')
-
-
-###########Moblab Config Wizard RPCs #######################
-def _get_public_ip_address(socket_handle):
-    """Gets the public IP address.
-
-    Connects to Google DNS server using a socket and gets the preferred IP
-    address from the connection.
-
-    @param: socket_handle: a unix socket.
-
-    @return: public ip address as string.
-    """
-    try:
-        socket_handle.settimeout(1)
-        socket_handle.connect(('8.8.8.8', 53))
-        socket_name = socket_handle.getsockname()
-        if socket_name is not None:
-            logging.info('Got socket name from UDP socket.')
-            return socket_name[0]
-        logging.warn('Created UDP socket but with no socket_name.')
-    except socket.error:
-        logging.warn('Could not get socket name from UDP socket.')
-    return None
-
-
-def _get_network_info():
-    """Gets the network information.
-
-    TCP socket is used to test the connectivity. If there is no connectivity, try to
-    get the public IP with UDP socket.
-
-    @return: a tuple as (public_ip_address, connected_to_internet).
-    """
-    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    ip = _get_public_ip_address(s)
-    if ip is not None:
-        logging.info('Established TCP connection with well known server.')
-        return (ip, True)
-    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-    return (_get_public_ip_address(s), False)
-
-
-@moblab_only
-def get_network_info():
-    """Returns the server ip addresses, and if the server connectivity.
-
-    The server ip addresses as an array of strings, and the connectivity as a
-    flag.
-    """
-    network_info = {}
-    info = _get_network_info()
-    if info[0] is not None:
-        network_info['server_ips'] = [info[0]]
-    network_info['is_connected'] = info[1]
-
-    return rpc_utils.prepare_for_serialization(network_info)
-
-
-# Gets the boto configuration.
-def _get_boto_config():
-    """Reads the boto configuration from the boto file.
-
-    @return: Boto configuration as ConfigParser object.
-    """
-    boto_config = ConfigParser.ConfigParser()
-    boto_config.read(MOBLAB_BOTO_LOCATION)
-    return boto_config
-
-
-@moblab_only
-def get_cloud_storage_info():
-    """RPC handler to get the cloud storage access information.
-    """
-    cloud_storage_info = {}
-    value =_CONFIG.get_config_value('CROS', _IMAGE_STORAGE_SERVER)
-    if value is not None:
-        cloud_storage_info[_IMAGE_STORAGE_SERVER] = value
-    value = _CONFIG.get_config_value('CROS', _RESULT_STORAGE_SERVER,
-            default=None)
-    if value is not None:
-        cloud_storage_info[_RESULT_STORAGE_SERVER] = value
-
-    boto_config = _get_boto_config()
-    sections = boto_config.sections()
-
-    if sections:
-        cloud_storage_info[_USE_EXISTING_BOTO_FILE] = True
-    else:
-        cloud_storage_info[_USE_EXISTING_BOTO_FILE] = False
-    if 'Credentials' in sections:
-        options = boto_config.options('Credentials')
-        if _GS_ACCESS_KEY_ID in options:
-            value = boto_config.get('Credentials', _GS_ACCESS_KEY_ID)
-            cloud_storage_info[_GS_ACCESS_KEY_ID] = value
-        if _GS_SECRETE_ACCESS_KEY in options:
-            value = boto_config.get('Credentials', _GS_SECRETE_ACCESS_KEY)
-            cloud_storage_info[_GS_SECRETE_ACCESS_KEY] = value
-
-    return rpc_utils.prepare_for_serialization(cloud_storage_info)
-
-
-def _get_bucket_name_from_url(bucket_url):
-    """Gets the bucket name from a bucket url.
-
-    @param: bucket_url: the bucket url string.
-    """
-    if bucket_url:
-        match = GOOGLE_STORAGE_BUCKET_URL_PATTERN.match(bucket_url)
-        if match:
-            return match.group('bucket')
-    return None
-
-
-def _is_valid_boto_key(key_id, key_secret):
-    """Checks if the boto key is valid.
-
-    @param: key_id: The boto key id string.
-    @param: key_secret: The boto key string.
-
-    @return: A tuple as (valid_boolean, details_string).
-    """
-    if not key_id or not key_secret:
-        return (False, "Empty key id or secret.")
-    conn = boto.connect_gs(key_id, key_secret)
-    try:
-        buckets = conn.get_all_buckets()
-        return (True, None)
-    except boto.exception.GSResponseError:
-        details = "The boto access key is not valid"
-        return (False, details)
-    finally:
-        conn.close()
-
-
-def _is_valid_bucket(key_id, key_secret, bucket_name):
-    """Checks if a bucket is valid and accessible.
-
-    @param: key_id: The boto key id string.
-    @param: key_secret: The boto key string.
-    @param: bucket name string.
-
-    @return: A tuple as (valid_boolean, details_string).
-    """
-    if not key_id or not key_secret or not bucket_name:
-        return (False, "Server error: invalid argument")
-    conn = boto.connect_gs(key_id, key_secret)
-    bucket = conn.lookup(bucket_name)
-    conn.close()
-    if bucket:
-        return (True, None)
-    return (False, "Bucket %s does not exist." % bucket_name)
-
-
-def _is_valid_bucket_url(key_id, key_secret, bucket_url):
-    """Validates the bucket url is accessible.
-
-    @param: key_id: The boto key id string.
-    @param: key_secret: The boto key string.
-    @param: bucket url string.
-
-    @return: A tuple as (valid_boolean, details_string).
-    """
-    bucket_name = _get_bucket_name_from_url(bucket_url)
-    if bucket_name:
-        return _is_valid_bucket(key_id, key_secret, bucket_name)
-    return (False, "Bucket url %s is not valid" % bucket_url)
-
-
-def _validate_cloud_storage_info(cloud_storage_info):
-    """Checks if the cloud storage information is valid.
-
-    @param: cloud_storage_info: The JSON RPC object for cloud storage info.
-
-    @return: A tuple as (valid_boolean, details_string).
-    """
-    valid = True
-    details = None
-    if not cloud_storage_info[_USE_EXISTING_BOTO_FILE]:
-        key_id = cloud_storage_info[_GS_ACCESS_KEY_ID]
-        key_secret = cloud_storage_info[_GS_SECRETE_ACCESS_KEY]
-        valid, details = _is_valid_boto_key(key_id, key_secret)
-
-        if valid:
-            valid, details = _is_valid_bucket_url(
-                key_id, key_secret, cloud_storage_info[_IMAGE_STORAGE_SERVER])
-
-        # allows result bucket to be empty.
-        if valid and cloud_storage_info[_RESULT_STORAGE_SERVER]:
-            valid, details = _is_valid_bucket_url(
-                key_id, key_secret, cloud_storage_info[_RESULT_STORAGE_SERVER])
-    return (valid, details)
-
-
-def _create_operation_status_response(is_ok, details):
-    """Helper method to create a operation status reponse.
-
-    @param: is_ok: Boolean for if the operation is ok.
-    @param: details: A detailed string.
-
-    @return: A serialized JSON RPC object.
-    """
-    status_response = {'status_ok': is_ok}
-    if details:
-        status_response['status_details'] = details
-    return rpc_utils.prepare_for_serialization(status_response)
-
-
-@moblab_only
-def validate_cloud_storage_info(cloud_storage_info):
-    """RPC handler to check if the cloud storage info is valid.
-    """
-    valid, details = _validate_cloud_storage_info(cloud_storage_info)
-    return _create_operation_status_response(valid, details)
-
-
-@moblab_only
-def submit_wizard_config_info(cloud_storage_info):
-    """RPC handler to submit the cloud storage info.
-    """
-    valid, details = _validate_cloud_storage_info(cloud_storage_info)
-    if not valid:
-        return _create_operation_status_response(valid, details)
-    config_update = {}
-    config_update['CROS'] = [
-        (_IMAGE_STORAGE_SERVER, cloud_storage_info[_IMAGE_STORAGE_SERVER]),
-        (_RESULT_STORAGE_SERVER, cloud_storage_info[_RESULT_STORAGE_SERVER])
-    ]
-    _update_partial_config(config_update)
-
-    if not cloud_storage_info[_USE_EXISTING_BOTO_FILE]:
-        boto_config = ConfigParser.RawConfigParser()
-        boto_config.add_section('Credentials')
-        boto_config.set('Credentials', _GS_ACCESS_KEY_ID,
-                        cloud_storage_info[_GS_ACCESS_KEY_ID])
-        boto_config.set('Credentials', _GS_SECRETE_ACCESS_KEY,
-                        cloud_storage_info[_GS_SECRETE_ACCESS_KEY])
-        _write_config_file(MOBLAB_BOTO_LOCATION, boto_config, True)
-
-    _CONFIG.parse_config_file()
-
-    # TODO(ntang): replace reboot with less intrusive reloading.
-    os.system('sudo reboot')
-
-    return _create_operation_status_response(True, None)
-
-
 def get_job_history(**filter_data):
     """Get history of the job, including the special tasks executed for the job
 
diff --git a/frontend/afe/site_rpc_interface_unittest.py b/frontend/afe/site_rpc_interface_unittest.py
index 039d633..f611438 100755
--- a/frontend/afe/site_rpc_interface_unittest.py
+++ b/frontend/afe/site_rpc_interface_unittest.py
@@ -7,37 +7,27 @@
 """Unit tests for frontend/afe/site_rpc_interface.py."""
 
 
-import __builtin__
-# The boto module is only available/used in Moblab for validation of cloud
-# storage access. The module is not available in the test lab environment, 
-# and the import error is handled.
-try:
-    import boto
-except ImportError:
-    boto = None
-import ConfigParser
 import datetime
-import logging
 import mox
-import StringIO
 import unittest
 
 import common
 
-from autotest_lib.frontend import setup_django_environment
-from autotest_lib.frontend.afe import frontend_test_utils
-from autotest_lib.frontend.afe import models, model_logic, rpc_utils
-from autotest_lib.client.common_lib import control_data, error
-from autotest_lib.client.common_lib import global_config
-from autotest_lib.client.common_lib import lsbrelease_utils
+from autotest_lib.client.common_lib import control_data
+from autotest_lib.client.common_lib import error
 from autotest_lib.client.common_lib import priorities
 from autotest_lib.client.common_lib.cros import dev_server
-from autotest_lib.frontend.afe import rpc_interface, site_rpc_interface
+from autotest_lib.frontend import setup_django_environment
+from autotest_lib.frontend.afe import frontend_test_utils
+from autotest_lib.frontend.afe import models
+from autotest_lib.frontend.afe import model_logic
+from autotest_lib.frontend.afe import rpc_utils
+from autotest_lib.frontend.afe import rpc_interface
+from autotest_lib.frontend.afe import site_rpc_interface
 from autotest_lib.server import utils
 from autotest_lib.server.cros import provision
-from autotest_lib.server.cros.dynamic_suite import control_file_getter
 from autotest_lib.server.cros.dynamic_suite import constants
-from autotest_lib.server.hosts import moblab_host
+from autotest_lib.server.cros.dynamic_suite import control_file_getter
 
 
 CLIENT = control_data.CONTROL_TYPE_NAMES.CLIENT
@@ -331,422 +321,6 @@
             job_id)
 
 
-    def setIsMoblab(self, is_moblab):
-        """Set utils.is_moblab result.
-
-        @param is_moblab: Value to have utils.is_moblab to return.
-        """
-        self.mox.StubOutWithMock(utils, 'is_moblab')
-        utils.is_moblab().AndReturn(is_moblab)
-
-
-    def testMoblabOnlyDecorator(self):
-        """Ensure the moblab only decorator gates functions properly."""
-        self.setIsMoblab(False)
-        self.mox.ReplayAll()
-        self.assertRaises(error.RPCException,
-                          site_rpc_interface.get_config_values)
-
-
-    def testGetConfigValues(self):
-        """Ensure that the config object is properly converted to a dict."""
-        self.setIsMoblab(True)
-        config_mock = self.mox.CreateMockAnything()
-        site_rpc_interface._CONFIG = config_mock
-        config_mock.get_sections().AndReturn(['section1', 'section2'])
-        config_mock.config = self.mox.CreateMockAnything()
-        config_mock.config.items('section1').AndReturn([('item1', 'value1'),
-                                                        ('item2', 'value2')])
-        config_mock.config.items('section2').AndReturn([('item3', 'value3'),
-                                                        ('item4', 'value4')])
-
-        rpc_utils.prepare_for_serialization(
-            {'section1' : [('item1', 'value1'),
-                           ('item2', 'value2')],
-             'section2' : [('item3', 'value3'),
-                           ('item4', 'value4')]})
-        self.mox.ReplayAll()
-        site_rpc_interface.get_config_values()
-
-
-    def testGetNetworkInfo(self):
-        """Ensure the network info is properly converted to a dict."""
-        self.setIsMoblab(True)
-
-        self.mox.StubOutWithMock(site_rpc_interface, '_get_network_info')
-        site_rpc_interface._get_network_info().AndReturn(('10.0.0.1', True))
-        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
-
-        rpc_utils.prepare_for_serialization(
-               {'is_connected': True, 'server_ips': ['10.0.0.1']})
-        self.mox.ReplayAll()
-        site_rpc_interface.get_network_info()
-        self.mox.VerifyAll()
-
-
-    def testGetNetworkInfoWithNoIp(self):
-        """Queries network info with no public IP address."""
-        self.setIsMoblab(True)
-
-        self.mox.StubOutWithMock(site_rpc_interface, '_get_network_info')
-        site_rpc_interface._get_network_info().AndReturn((None, False))
-        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
-
-        rpc_utils.prepare_for_serialization(
-               {'is_connected': False})
-        self.mox.ReplayAll()
-        site_rpc_interface.get_network_info()
-        self.mox.VerifyAll()
-
-
-    def testGetNetworkInfoWithNoConnectivity(self):
-        """Queries network info with public IP address but no connectivity."""
-        self.setIsMoblab(True)
-
-        self.mox.StubOutWithMock(site_rpc_interface, '_get_network_info')
-        site_rpc_interface._get_network_info().AndReturn(('10.0.0.1', False))
-        self.mox.StubOutWithMock(rpc_utils, 'prepare_for_serialization')
-
-        rpc_utils.prepare_for_serialization(
-               {'is_connected': False, 'server_ips': ['10.0.0.1']})
-        self.mox.ReplayAll()
-        site_rpc_interface.get_network_info()
-        self.mox.VerifyAll()
-
-
-    def testGetCloudStorageInfo(self):
-        """Ensure the cloud storage info is properly converted to a dict."""
-        self.setIsMoblab(True)
-        config_mock = self.mox.CreateMockAnything()
-        site_rpc_interface._CONFIG = config_mock
-        config_mock.get_config_value(
-            'CROS', 'image_storage_server').AndReturn('gs://bucket1')
-        config_mock.get_config_value(
-            'CROS', 'results_storage_server', default=None).AndReturn(
-                    'gs://bucket2')
-        self.mox.StubOutWithMock(site_rpc_interface, '_get_boto_config')
-        site_rpc_interface._get_boto_config().AndReturn(config_mock)
-        config_mock.sections().AndReturn(['Credentials', 'b'])
-        config_mock.options('Credentials').AndReturn(
-            ['gs_access_key_id', 'gs_secret_access_key'])
-        config_mock.get(
-            'Credentials', 'gs_access_key_id').AndReturn('key')
-        config_mock.get(
-            'Credentials', 'gs_secret_access_key').AndReturn('secret')
-        rpc_utils.prepare_for_serialization(
-                {
-                    'gs_access_key_id': 'key',
-                    'gs_secret_access_key' : 'secret',
-                    'use_existing_boto_file': True,
-                    'image_storage_server' : 'gs://bucket1',
-                    'results_storage_server' : 'gs://bucket2'
-                })
-        self.mox.ReplayAll()
-        site_rpc_interface.get_cloud_storage_info()
-        self.mox.VerifyAll()
-
-
-    def testValidateCloudStorageInfo(self):
-        """ Ensure the cloud storage info validation flow."""
-        self.setIsMoblab(True)
-        cloud_storage_info = {
-            'use_existing_boto_file': False,
-            'gs_access_key_id': 'key',
-            'gs_secret_access_key': 'secret',
-            'image_storage_server': 'gs://bucket1',
-            'results_storage_server': 'gs://bucket2'}
-        self.mox.StubOutWithMock(site_rpc_interface, '_is_valid_boto_key')
-        self.mox.StubOutWithMock(site_rpc_interface, '_is_valid_bucket')
-        site_rpc_interface._is_valid_boto_key(
-                'key', 'secret').AndReturn((True, None))
-        site_rpc_interface._is_valid_bucket(
-                'key', 'secret', 'bucket1').AndReturn((True, None))
-        site_rpc_interface._is_valid_bucket(
-                'key', 'secret', 'bucket2').AndReturn((True, None))
-        rpc_utils.prepare_for_serialization(
-                {'status_ok': True })
-        self.mox.ReplayAll()
-        site_rpc_interface.validate_cloud_storage_info(cloud_storage_info)
-        self.mox.VerifyAll()
-
-
-    def testGetBucketNameFromUrl(self):
-        """Gets bucket name from bucket URL."""
-        self.assertEquals(
-            'bucket_name-123',
-            site_rpc_interface._get_bucket_name_from_url(
-                    'gs://bucket_name-123'))
-        self.assertEquals(
-            'bucket_name-123',
-            site_rpc_interface._get_bucket_name_from_url(
-                    'gs://bucket_name-123/'))
-        self.assertEquals(
-            'bucket_name-123',
-            site_rpc_interface._get_bucket_name_from_url(
-                    'gs://bucket_name-123/a/b/c'))
-        self.assertIsNone(site_rpc_interface._get_bucket_name_from_url(
-            'bucket_name-123/a/b/c'))
-
-
-    def testIsValidBotoKeyValid(self):
-        """Tests the boto key validation flow."""
-        if boto is None:
-            logging.info('skip test since boto module not installed')
-            return
-        conn = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(boto, 'connect_gs')
-        boto.connect_gs('key', 'secret').AndReturn(conn)
-        conn.get_all_buckets().AndReturn(['a', 'b'])
-        conn.close()
-        self.mox.ReplayAll()
-        valid, details = site_rpc_interface._is_valid_boto_key('key', 'secret')
-        self.assertTrue(valid)
-        self.mox.VerifyAll()
-
-
-    def testIsValidBotoKeyInvalid(self):
-        """Tests the boto key validation with invalid key."""
-        if boto is None:
-            logging.info('skip test since boto module not installed')
-            return
-        conn = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(boto, 'connect_gs')
-        boto.connect_gs('key', 'secret').AndReturn(conn)
-        conn.get_all_buckets().AndRaise(
-                boto.exception.GSResponseError('bad', 'reason'))
-        conn.close()
-        self.mox.ReplayAll()
-        valid, details = site_rpc_interface._is_valid_boto_key('key', 'secret')
-        self.assertFalse(valid)
-        self.assertEquals('The boto access key is not valid', details)
-        self.mox.VerifyAll()
-
-
-    def testIsValidBucketValid(self):
-        """Tests the bucket vaildation flow."""
-        if boto is None:
-            logging.info('skip test since boto module not installed')
-            return
-        conn = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(boto, 'connect_gs')
-        boto.connect_gs('key', 'secret').AndReturn(conn)
-        conn.lookup('bucket').AndReturn('bucket')
-        conn.close()
-        self.mox.ReplayAll()
-        valid, details = site_rpc_interface._is_valid_bucket(
-                'key', 'secret', 'bucket')
-        self.assertTrue(valid)
-        self.mox.VerifyAll()
-
-
-    def testIsValidBucketInvalid(self):
-        """Tests the bucket validation flow with invalid key."""
-        if boto is None:
-            logging.info('skip test since boto module not installed')
-            return
-        conn = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(boto, 'connect_gs')
-        boto.connect_gs('key', 'secret').AndReturn(conn)
-        conn.lookup('bucket').AndReturn(None)
-        conn.close()
-        self.mox.ReplayAll()
-        valid, details = site_rpc_interface._is_valid_bucket(
-                'key', 'secret', 'bucket')
-        self.assertFalse(valid)
-        self.assertEquals("Bucket bucket does not exist.", details)
-        self.mox.VerifyAll()
-
-
-    def testGetShadowConfigFromPartialUpdate(self):
-        """Tests getting shadow configuration based on partial upate."""
-        partial_config = {
-                'section1': [
-                    ('opt1', 'value1'),
-                    ('opt2', 'value2'),
-                    ('opt3', 'value3'),
-                    ('opt4', 'value4'),
-                    ]
-                }
-        shadow_config_str = "[section1]\nopt2 = value2_1\nopt4 = value4_1"
-        shadow_config = ConfigParser.ConfigParser()
-        shadow_config.readfp(StringIO.StringIO(shadow_config_str))
-        original_config = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(site_rpc_interface, '_read_original_config')
-        self.mox.StubOutWithMock(site_rpc_interface, '_read_raw_config')
-        site_rpc_interface._read_original_config().AndReturn(original_config)
-        site_rpc_interface._read_raw_config(
-                site_rpc_interface._CONFIG.shadow_file).AndReturn(shadow_config)
-        original_config.get_config_value(
-                'section1', 'opt1',
-                allow_blank=True, default='').AndReturn('value1')
-        original_config.get_config_value(
-                'section1', 'opt2',
-                allow_blank=True, default='').AndReturn('value2')
-        original_config.get_config_value(
-                'section1', 'opt3',
-                allow_blank=True, default='').AndReturn('blah')
-        original_config.get_config_value(
-                'section1', 'opt4',
-                allow_blank=True, default='').AndReturn('blah')
-        self.mox.ReplayAll()
-        shadow_config = site_rpc_interface._get_shadow_config_from_partial_update(
-                partial_config)
-        # opt1 same as the original.
-        self.assertFalse(shadow_config.has_option('section1', 'opt1'))
-        # opt2 reverts back to original
-        self.assertFalse(shadow_config.has_option('section1', 'opt2'))
-        # opt3 is updated from original.
-        self.assertEquals('value3', shadow_config.get('section1', 'opt3'))
-        # opt3 in shadow but updated again.
-        self.assertEquals('value4', shadow_config.get('section1', 'opt4'))
-        self.mox.VerifyAll()
-
-
-    def testGetShadowConfigFromPartialUpdateWithNewSection(self):
-        """
-        Test getting shadown configuration based on partial update with new section.
-        """
-        partial_config = {
-                'section2': [
-                    ('opt5', 'value5'),
-                    ('opt6', 'value6'),
-                    ],
-                }
-        shadow_config_str = "[section1]\nopt2 = value2_1\n"
-        shadow_config = ConfigParser.ConfigParser()
-        shadow_config.readfp(StringIO.StringIO(shadow_config_str))
-        original_config = self.mox.CreateMockAnything()
-        self.mox.StubOutWithMock(site_rpc_interface, '_read_original_config')
-        self.mox.StubOutWithMock(site_rpc_interface, '_read_raw_config')
-        site_rpc_interface._read_original_config().AndReturn(original_config)
-        site_rpc_interface._read_raw_config(
-            site_rpc_interface._CONFIG.shadow_file).AndReturn(shadow_config)
-        original_config.get_config_value(
-                'section2', 'opt5',
-                allow_blank=True, default='').AndReturn('value5')
-        original_config.get_config_value(
-                'section2', 'opt6',
-                allow_blank=True, default='').AndReturn('blah')
-        self.mox.ReplayAll()
-        shadow_config = site_rpc_interface._get_shadow_config_from_partial_update(
-                partial_config)
-        # opt2 is still in shadow
-        self.assertEquals('value2_1', shadow_config.get('section1', 'opt2'))
-        # opt5 is not changed.
-        self.assertFalse(shadow_config.has_option('section2', 'opt5'))
-        # opt6 is updated.
-        self.assertEquals('value6', shadow_config.get('section2', 'opt6'))
-        self.mox.VerifyAll()
-
-
-    def _mockReadFile(self, path, lines=[]):
-        """Mock out reading a file line by line.
-
-        @param path: Path of the file we are mock reading.
-        @param lines: lines of the mock file that will be returned when
-                      readLine() is called.
-        """
-        mockFile = self.mox.CreateMockAnything()
-        for line in lines:
-            mockFile.readline().AndReturn(line)
-        mockFile.readline()
-        mockFile.close()
-        open(path).AndReturn(mockFile)
-
-
-    def testUpdateConfig(self):
-        """Ensure that updating the config works as expected."""
-        self.setIsMoblab(True)
-        site_rpc_interface.os = self.mox.CreateMockAnything()
-
-        self.mox.StubOutWithMock(__builtin__, 'open')
-        self._mockReadFile(global_config.DEFAULT_CONFIG_FILE)
-
-        self.mox.StubOutWithMock(lsbrelease_utils, 'is_moblab')
-        lsbrelease_utils.is_moblab().AndReturn(True)
-
-        self._mockReadFile(global_config.DEFAULT_MOBLAB_FILE,
-                           ['[section1]', 'item1: value1'])
-
-        site_rpc_interface.os = self.mox.CreateMockAnything()
-        site_rpc_interface.os.path = self.mox.CreateMockAnything()
-        site_rpc_interface.os.path.exists(
-                site_rpc_interface._CONFIG.shadow_file).AndReturn(
-                True)
-        mockShadowFile = self.mox.CreateMockAnything()
-        mockShadowFileContents = StringIO.StringIO()
-        mockShadowFile.__enter__().AndReturn(mockShadowFileContents)
-        mockShadowFile.__exit__(mox.IgnoreArg(), mox.IgnoreArg(),
-                                mox.IgnoreArg())
-        open(site_rpc_interface._CONFIG.shadow_file,
-             'w').AndReturn(mockShadowFile)
-        site_rpc_interface.os.system('sudo reboot')
-
-        self.mox.ReplayAll()
-        site_rpc_interface.update_config_handler(
-                {'section1' : [('item1', 'value1'),
-                               ('item2', 'value2')],
-                 'section2' : [('item3', 'value3'),
-                               ('item4', 'value4')]})
-
-        # item1 should not be in the new shadow config as its updated value
-        # matches the original config's value.
-        self.assertEquals(
-                mockShadowFileContents.getvalue(),
-                '[section2]\nitem3 = value3\nitem4 = value4\n\n'
-                '[section1]\nitem2 = value2\n\n')
-
-
-    def testResetConfig(self):
-        """Ensure that reset opens the shadow_config file for writing."""
-        self.setIsMoblab(True)
-        config_mock = self.mox.CreateMockAnything()
-        site_rpc_interface._CONFIG = config_mock
-        config_mock.shadow_file = 'shadow_config.ini'
-        self.mox.StubOutWithMock(__builtin__, 'open')
-        mockFile = self.mox.CreateMockAnything()
-        file_contents = self.mox.CreateMockAnything()
-        mockFile.__enter__().AndReturn(file_contents)
-        mockFile.__exit__(mox.IgnoreArg(), mox.IgnoreArg(), mox.IgnoreArg())
-        open(config_mock.shadow_file, 'w').AndReturn(mockFile)
-        site_rpc_interface.os = self.mox.CreateMockAnything()
-        site_rpc_interface.os.system('sudo reboot')
-        self.mox.ReplayAll()
-        site_rpc_interface.reset_config_settings()
-
-
-    def testSetBotoKey(self):
-        """Ensure that the botokey path supplied is copied correctly."""
-        self.setIsMoblab(True)
-        boto_key = '/tmp/boto'
-        site_rpc_interface.os.path = self.mox.CreateMockAnything()
-        site_rpc_interface.os.path.exists(boto_key).AndReturn(
-                True)
-        site_rpc_interface.shutil = self.mox.CreateMockAnything()
-        site_rpc_interface.shutil.copyfile(
-                boto_key, site_rpc_interface.MOBLAB_BOTO_LOCATION)
-        self.mox.ReplayAll()
-        site_rpc_interface.set_boto_key(boto_key)
-
-
-    def testSetLaunchControlKey(self):
-        """Ensure that the Launch Control key path supplied is copied correctly.
-        """
-        self.setIsMoblab(True)
-        launch_control_key = '/tmp/launch_control'
-        site_rpc_interface.os = self.mox.CreateMockAnything()
-        site_rpc_interface.os.path = self.mox.CreateMockAnything()
-        site_rpc_interface.os.path.exists(launch_control_key).AndReturn(
-                True)
-        site_rpc_interface.shutil = self.mox.CreateMockAnything()
-        site_rpc_interface.shutil.copyfile(
-                launch_control_key,
-                moblab_host.MOBLAB_LAUNCH_CONTROL_KEY_LOCATION)
-        site_rpc_interface.os.system('sudo restart moblab-devserver-init')
-        self.mox.ReplayAll()
-        site_rpc_interface.set_launch_control_key(launch_control_key)
-
-
     def _get_records_for_sending_to_master(self):
         return [{'control_file': 'foo',
                  'control_type': 1,
diff --git a/frontend/afe/views.py b/frontend/afe/views.py
index 44feef0..5c59aad 100644
--- a/frontend/afe/views.py
+++ b/frontend/afe/views.py
@@ -12,27 +12,50 @@
         __file__, 'autotest_lib.frontend.afe.site_rpc_interface',
         dummy=object())
 
+moblab_rpc_interface = utils.import_site_module(
+        __file__, 'autotest_lib.frontend.afe.moblab_rpc_interface',
+        dummy=object())
+
 # since site_rpc_interface is later in the list, its methods will override those
 # of rpc_interface
-rpc_handler_obj = rpc_handler.RpcHandler((rpc_interface, site_rpc_interface),
+rpc_handler_obj = rpc_handler.RpcHandler((rpc_interface, site_rpc_interface,
+                                          moblab_rpc_interface),
                                          document_module=rpc_interface)
 
 
 def handle_rpc(request):
+    """Handle the RPC request.
+
+    @param request: the RPC request.
+    """
     return rpc_handler_obj.handle_rpc_request(request)
 
 
 def rpc_documentation(request):
+    """Return the rpc documentation.
+
+    @param request: the RPC request.
+    """
     return rpc_handler_obj.get_rpc_documentation()
 
 
 def model_documentation(request):
+    """Get the model documentation.
+
+    @param request: the RPC request.
+    """
     model_names = ('Label', 'Host', 'Test', 'User', 'AclGroup', 'Job',
                    'AtomicGroup')
     return views_common.model_documentation(models, model_names)
 
 
 def redirect_with_extra_data(request, url, **kwargs):
+    """Redirect according to the extra data.
+
+    @param request: the RPC request.
+    @param url: the partial redirected url.
+    @param kwargs: the parameters used in redirection.
+    """
     kwargs['getdata'] = request.GET.urlencode()
     kwargs['server_name'] = request.META['SERVER_NAME']
     return HttpResponsePermanentRedirect(url % kwargs)
@@ -40,6 +63,11 @@
 
 GWT_SERVER = 'http://localhost:8888/'
 def gwt_forward(request, forward_addr):
+    """Get the response from forwarding address.
+
+    @param request: the RPC request.
+    @param forward_addr: the forwarding address.
+    """
     url = GWT_SERVER + forward_addr
     if len(request.POST) == 0:
         headers, content = httplib2.Http().request(url, 'GET')
@@ -54,6 +82,10 @@
 
 
 def handler500(request):
+    """Redirect to error website page.
+
+    @param request: the RPC request.
+    """
     t = loader.get_template('500.html')
     trace = traceback.format_exc()
     context = Context({