summaryrefslogtreecommitdiffstats
path: root/ms/command-executor/src/main/python/utils.py
blob: d59f8cc47d8ba40bccb5b5ec099041a1c6c69063 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
#
# Copyright (C) 2019 - 2020 Bell Canada.
#
# 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 google.protobuf.timestamp_pb2 import Timestamp

import proto.CommandExecutor_pb2 as CommandExecutor_pb2
import json
import email.parser

CDS_IS_SUCCESSFUL_KEY = "cds_is_successful"
ERR_MSG_KEY = "err_msg"
RESULTS_KEY = "results"
RESULTS_LOG_KEY = "results_log"
REUPLOAD_CBA_KEY = "reupload_cba"
RESPONSE_MAX_SIZE = 4 * 1024 * 1024  # 4Mb

# part of cba_name/version/uuid path
def blueprint_name_version_uuid(request):
  return get_blueprint_name(request) + '/' + get_blueprint_version(request) + '/' + get_blueprint_uuid(request)

# return blueprint_name and version part of the path (needed for legacy cmd-exec support
def blueprint_name_version(request):
  return get_blueprint_name(request) + '/' + get_blueprint_version(request)

def get_blueprint_name(request):
  return request.identifiers.blueprintName

def get_blueprint_version(request):
  return request.identifiers.blueprintVersion

def get_blueprint_uuid(request):
  return request.identifiers.blueprintUUID

def get_blueprint_timeout(request):
  return request.timeOut

def get_blueprint_requestid(request):
  return request.requestId

def get_blueprint_subRequestId(request):
  return request.subRequestId

# Create a response for grpc. Fills in the timestamp as well as removes cds_is_successful element
def build_grpc_response(request_id, response):
  if response[CDS_IS_SUCCESSFUL_KEY]:
    status = CommandExecutor_pb2.SUCCESS
  else:
    status = CommandExecutor_pb2.FAILURE

  response.pop(CDS_IS_SUCCESSFUL_KEY)
  logs = response.pop(RESULTS_LOG_KEY)

  # Payload should only contains response data returned from the executed script and/or the error message
  payload = json.dumps(response)

  timestamp = Timestamp()
  timestamp.GetCurrentTime()

  execution_output = CommandExecutor_pb2.ExecutionOutput(requestId=request_id,
                                                         response=logs,
                                                         status=status,
                                                         payload=payload,
                                                         timestamp=timestamp)

  return truncate_execution_output(execution_output)

def build_grpc_blueprint_upload_response(request_id, subrequest_id, success=True, payload=[]):
  timestamp = Timestamp()
  timestamp.GetCurrentTime()
  return CommandExecutor_pb2.UploadBlueprintOutput(requestId=request_id,
    subRequestId=subrequest_id, 
    status=CommandExecutor_pb2.SUCCESS if success else CommandExecutor_pb2.FAILURE,
    timestamp=timestamp,
    payload=json.dumps(payload))

# build a ret data structure used to populate the ExecutionOutput
def build_ret_data(cds_is_successful, results_log=[], error=None, reupload_cba = False):
  ret_data = {
    CDS_IS_SUCCESSFUL_KEY: cds_is_successful,
    RESULTS_LOG_KEY: results_log
  }
  if error:
    ret_data[ERR_MSG_KEY] = error
  # CBA needs to be reuploaded case:
  if reupload_cba:
    ret_data[REUPLOAD_CBA_KEY] = True
  return ret_data


# Truncate execution logs to make sure gRPC response doesn't exceed the gRPC buffer capacity
def truncate_execution_output(execution_output):
  sum_truncated_chars = 0
  if execution_output.ByteSize() > RESPONSE_MAX_SIZE:
    while execution_output.ByteSize() > RESPONSE_MAX_SIZE:
      removed_item = execution_output.response.pop()
      sum_truncated_chars += len(removed_item)
    execution_output.response.append(
        "[...] TRUNCATED CHARS : {}".format(sum_truncated_chars))
  return execution_output


# Read temp file 'outputfile' into results_log and split out the returned payload into payload_result
def parse_cmd_exec_output(outputfile, logger, payload_result, results_log,
    extra):
  payload_section = []
  is_payload_section = False
  outputfile.seek(0)
  while True:
    output = outputfile.readline()
    if output == '':
      break
    if output.startswith('BEGIN_EXTRA_PAYLOAD'):
      is_payload_section = True
      output = outputfile.readline()
    if output.startswith('END_EXTRA_PAYLOAD'):
      is_payload_section = False
      output = ''
      payload = '\n'.join(payload_section)
      msg = email.parser.Parser().parsestr(payload)
      for part in msg.get_payload():
        payload_result.update(json.loads(part.get_payload()))
    if output and not is_payload_section:
      logger.info(output.strip(), extra=extra)
      results_log.append(output.strip())
    else:
      payload_section.append(output.strip())


def getExtraLogData(request=None):
  extra = {'request_id': '', 'subrequest_id': '', 'originator_id': ''}
  if request is not None:
    extra = {
      'request_id': request.requestId,
      'subrequest_id': request.subRequestId,
      'originator_id': request.originatorId
    }
  return extra