esp-idf/examples/protocols/esp_local_ctrl/scripts/proto_lc.py

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# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from __future__ import print_function
import os
from future.utils import tobytes
def _load_source(name, path):
try:
from importlib.machinery import SourceFileLoader
return SourceFileLoader(name, path).load_module()
except ImportError:
# importlib.machinery doesn't exists in Python 2 so we will use imp (deprecated in Python 3)
import imp
return imp.load_source(name, path)
idf_path = os.environ['IDF_PATH']
constants_pb2 = _load_source('constants_pb2', idf_path + '/components/protocomm/python/constants_pb2.py')
local_ctrl_pb2 = _load_source('esp_local_ctrl_pb2', idf_path + '/components/esp_local_ctrl/python/esp_local_ctrl_pb2.py')
def get_prop_count_request(security_ctx):
req = local_ctrl_pb2.LocalCtrlMessage()
req.msg = local_ctrl_pb2.TypeCmdGetPropertyCount
payload = local_ctrl_pb2.CmdGetPropertyCount()
req.cmd_get_prop_count.MergeFrom(payload)
enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
return enc_cmd
def get_prop_count_response(security_ctx, response_data):
decrypt = security_ctx.decrypt_data(tobytes(response_data))
resp = local_ctrl_pb2.LocalCtrlMessage()
resp.ParseFromString(decrypt)
if (resp.resp_get_prop_count.status == 0):
return resp.resp_get_prop_count.count
else:
return 0
def get_prop_vals_request(security_ctx, indices):
req = local_ctrl_pb2.LocalCtrlMessage()
req.msg = local_ctrl_pb2.TypeCmdGetPropertyValues
payload = local_ctrl_pb2.CmdGetPropertyValues()
payload.indices.extend(indices)
req.cmd_get_prop_vals.MergeFrom(payload)
enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
return enc_cmd
def get_prop_vals_response(security_ctx, response_data):
decrypt = security_ctx.decrypt_data(tobytes(response_data))
resp = local_ctrl_pb2.LocalCtrlMessage()
resp.ParseFromString(decrypt)
results = []
if (resp.resp_get_prop_vals.status == 0):
for prop in resp.resp_get_prop_vals.props:
results += [{
'name': prop.name,
'type': prop.type,
'flags': prop.flags,
'value': tobytes(prop.value)
}]
return results
def set_prop_vals_request(security_ctx, indices, values):
req = local_ctrl_pb2.LocalCtrlMessage()
req.msg = local_ctrl_pb2.TypeCmdSetPropertyValues
payload = local_ctrl_pb2.CmdSetPropertyValues()
for i, v in zip(indices, values):
prop = payload.props.add()
prop.index = i
prop.value = v
req.cmd_set_prop_vals.MergeFrom(payload)
enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
return enc_cmd
def set_prop_vals_response(security_ctx, response_data):
decrypt = security_ctx.decrypt_data(tobytes(response_data))
resp = local_ctrl_pb2.LocalCtrlMessage()
resp.ParseFromString(decrypt)
return (resp.resp_set_prop_vals.status == 0)