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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#!/usr/bin/env python
import os
import sys
import json
import pprint
import argparse
import boto3
import misc
import certs
import thing
import policy
pp = pprint.PrettyPrinter(indent=4)
def check_aws_configuration():
mysession = boto3.session.Session()
if not mysession._session._config['profiles']:
print("AWS not configured. Please run `aws configure`.")
sys.exit(1)
def prereq():
with open('configure.json') as configure_file:
json_text = json.load(configure_file)
# Create a Thing
thing_name = json_text['thing_name']
thing_obj = thing.Thing(thing_name)
if not thing_obj.create():
# Create a Certificate
cert_obj = certs.Certificate()
result = cert_obj.create()
# Store certId
cert_id = result['certificateId']
cert_id_filename = thing_name + '_cert_id_file.txt'
cert_id_file = open(cert_id_filename, 'w')
cert_id_file.write(cert_id)
cert_id_file_path = os.path.abspath(cert_id_filename)
os.chmod(cert_id_file_path, 0o444)
cert_id_file.close()
# Store cert_pem as file
cert_pem = result['certificatePem']
cert_pem_filename = thing_name + '_cert_pem_file.pem'
cert_pem_file = open(cert_pem_filename, 'w')
cert_pem_file.write(cert_pem)
cert_pem_file_path = os.path.abspath(cert_pem_filename)
os.chmod(cert_pem_file_path, 0o444)
cert_pem_file.close()
# Store private key PEM as file
private_key_pem = result['keyPair']['PrivateKey']
private_key_pem_filename = thing_name + '_private_key_pem_file.pem'
private_key_pem_file = open(private_key_pem_filename, 'w')
private_key_pem_file.write(private_key_pem)
private_key_pem_file_path = os.path.abspath(private_key_pem_filename)
os.chmod(private_key_pem_file_path, 0o444)
private_key_pem_file.close()
# Create a Policy
policy_document = misc.create_policy_document()
policy_name = thing_name + '_amazon_freertos_policy'
policy_obj = policy.Policy(policy_name, policy_document)
policy_obj.create()
# Attach certificate to Thing
cert_obj.attach_thing(thing_name)
# Attach policy to certificate
cert_obj.attach_policy(policy_name)
def update_credential_file():
with open('configure.json') as configure_file:
json_text = json.load(configure_file)
source_dir = os.path.expanduser(json_text['FreeRTOS_source_dir'])
thing_name = json_text['thing_name']
# Read cert_pem from file
cert_pem_filename = thing_name + '_cert_pem_file.pem'
try:
cert_pem_file = open(cert_pem_filename, 'r')
except IOError:
print("{} file not found. Run prerequisite step"
.format(cert_pem_filename))
sys.exit(1)
else:
cert_pem = cert_pem_file.read()
# Read private_key_pem from file
private_key_pem_filename = thing_name + '_private_key_pem_file.pem'
try:
private_key_pem_file = open(private_key_pem_filename, 'r')
except IOError:
print("{} file not found. Run prerequisite step"
.format(private_key_pem_filename))
sys.exit(1)
else:
private_key_pem = private_key_pem_file.read()
# Modify 'iot_clientcredential.h' file
misc.write_client_credentials(
source_dir,
thing_name=thing_name,
client_certificate_pem=cert_pem,
client_private_key_pem=private_key_pem,
cleanup=False)
def delete_prereq():
with open('configure.json') as configure_file:
json_text = json.load(configure_file)
# Delete Thing
thing_name = json_text['thing_name']
thing_obj = thing.Thing(thing_name)
if thing_obj.exists():
thing_obj.delete()
# Delete certificate
cert_id_filename = thing_name + '_cert_id_file.txt'
if os.path.exists(cert_id_filename):
cert_id_file = open(cert_id_filename, 'r')
cert_id = cert_id_file.read()
cert_obj = certs.Certificate(cert_id)
cert_obj.delete()
cert_id_file.close()
cert_id_file_path = os.path.abspath(cert_id_filename)
os.chmod(cert_id_file_path, 0o666)
os.remove(cert_id_filename)
# Delete cert_pem file and private_key_pem file
cert_pem_filename = thing_name + '_cert_pem_file.pem'
if os.path.exists(cert_pem_filename):
cert_pem_file_path = os.path.abspath(cert_pem_filename)
os.chmod(cert_pem_file_path, 0o666)
os.remove(cert_pem_filename)
private_key_pem_filename = thing_name + '_private_key_pem_file.pem'
if os.path.exists(private_key_pem_filename):
private_key_pem_file_path = os.path.abspath(private_key_pem_filename)
os.chmod(private_key_pem_file_path, 0o666)
os.remove(private_key_pem_filename)
# Delete policy
policy_name = thing_name + '_amazon_freertos_policy'
policy_obj = policy.Policy(policy_name)
if policy_obj.exists():
policy_obj.delete()
def cleanup_creds():
with open('configure.json') as file:
json_text = json.load(file)
source_dir = os.path.expanduser(json_text['FreeRTOS_source_dir'])
# Cleanup 'iot_clientcredential.h' file
misc.write_client_credentials(source_dir, cleanup=True)
def setup():
prereq()
update_credential_file()
print("Setup Completed")
def cleanup():
delete_prereq()
cleanup_creds()
print("Cleanup Completed")
def list_certificates():
client = boto3.client('iot')
certs = client.list_certificates()['certificates']
pp.pprint(certs)
def list_things():
client = boto3.client('iot')
things = client.list_things()['things']
pp.pprint(things)
def list_policies():
client = boto3.client('iot')
policies = client.list_policies()['policies']
pp.pprint(policies)
if __name__ == "__main__":
arg_parser = argparse.ArgumentParser()
subparsers = arg_parser.add_subparsers(help='Available commands',
dest='command')
subparsers.add_parser('setup', help='Setup AWS IoT')
subparsers.add_parser('cleanup', help='Cleanup AWS IoT')
subparsers.add_parser('list_certificates', help='List certificates')
subparsers.add_parser('list_things', help='List things')
subparsers.add_parser('list_policies', help='List policies')
subparsers.add_parser('prereq', help='Setup prerequisites for AWS IoT')
subparsers.add_parser('update_creds', help='Update credential files')
subparsers.add_parser('delete_prereq', help='Delete prerequisites created')
subparsers.add_parser('cleanup_creds', help='Cleanup credential files')
args = arg_parser.parse_args()
check_aws_configuration()
if args.command == 'setup':
setup()
elif args.command == 'cleanup':
cleanup()
elif args.command == 'list_certificates':
list_certificates()
elif args.command == 'list_things':
list_things()
elif args.command == 'list_policies':
list_policies()
elif args.command == 'prereq':
prereq()
elif args.command == 'update_creds':
update_credential_file()
elif args.command == 'delete_prereq':
delete_prereq()
elif args.command == 'cleanup_creds':
cleanup_creds()
else:
print("Command does not exist")
sys.exit(1)
|
