Repository navigation
Expand file tree
/
Copy pathoauth_main.py
More file actions
226 lines (196 loc) · 7.63 KB
/
Copy pathoauth_main.py
File metadata and controls
226 lines (196 loc) · 7.63 KB
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
# --------------------------- IMPORTS --------------------------- #
from datetime import datetime
import os
import urllib
from flask import Flask, abort, request, session, redirect, render_template, jsonify
from flask_cors import CORS
import requests
import requests.auth
from dotenv import load_dotenv
# ------------------------- END IMPORTS ------------------------- #
# adding session may have fixed the problem with session variable runtime error.
session = {}
session['bool'] = False
# loads the environment variables
load_dotenv()
CLIENT_ID = os.getenv("CLIENT_ID")
CLIENT_SECRET = os.getenv("CLIENT_SECRET")
REDIRECT_URI = os.getenv("REDIRECT_URI")
OAUTH_URL = os.getenv("OAUTH_URL")
BASE_URL = os.getenv("BASE_URL")
# end loading env variables
def gen_secret_key():
"""
DESCRIPTION:
Generates SECRET_KEY, used for existence session variables
INPUT:
N/A
OUTPUT:
return = randomly generated SECRET_KEY
"""
return os.urandom(16)
def gen_token_disp(token):
"""
DESCRIPTION:
Grabs the first and last 7 characters of the token and appends them to '...'
ex: D5tWEds...565EER_
INPUT:
token = access_token/refresh_token
OUTPUT:
return = concatinated string of auth
"""
return token[:7] + '...' + token[-7:]
def update_date(created_at):
'''
DESCRIPTION:
Turns unix time stamp into human readable time for the expire_date.Takes in unix created_at
time value and adds 7200 (2 hours) to the created_at value before converting time.
INPUTS:
created_at = the unix date and time of the authorization token creation.
OUTPUT:
return = returns the created_at unix date/time in a human-readable format
'''
return datetime.utcfromtimestamp(created_at).strftime('%Y-%m-%d %H:%M:%S')
def update_expire(created_at):
'''
DESCRIPTION:
Turns unix time stamp into human readable time for the expire_date.Takes in unix created_at
time value and adds 7200 (2 hours) to the created_at value before converting time.
INPUTS:
created_at = the unix date and time of the authorization token creation.
OUTPUT:
return = returns the expires_at unix date/time in a human-readable format.
'''
return datetime.utcfromtimestamp(created_at+7200).strftime('%Y-%m-%d %H:%M:%S')
def get_me(access_token):
'''
DESCRIPTION:
Calls /rest/v1.0/me endpoint and returns user login/id.
INPUTS:
access_token = access_token used as credentials to communicate with the API
OUTPUTS:
me_json['login'] = user's login name
me_json['id'] = user's login ID
'''
headers = {"Authorization": "Bearer " + access_token}
response = requests.get(BASE_URL+"/rest/v1.0/me", headers=headers)
me_json = response.json()
return me_json['login'], me_json['id']
def make_authorization_url():
'''
DESCRIPTION:
Creates the authorization URL to obtain the authorization code from Procore.
INPUTS:
N/A
OUTPUTS:
url: the url used to obtain the authorization code from the application.
'''
# Generate a random string for the state parameter
# Save it for use later to prevent xsrf attacks
params = {
"client_id": CLIENT_ID,
"response_type": "code",
"redirect_uri": REDIRECT_URI
}
url = OAUTH_URL + "/oauth/authorize?" + urllib.parse.urlencode(params)
return url
def get_token(code):
'''
DESCRIPTION:
Gets the access token by utilizating the authorization code that was
previously obtained from the authorization_url call.
INPUTS:
code = authorization code
OUTPUTS:
response_json["access_token"] = user's current access token
response_json["refresh_token"] = user's current refresh token
response_json['created_at'] = the date and time the user's access
token was generated
'''
client_auth = requests.auth.HTTPBasicAuth(CLIENT_ID, CLIENT_SECRET)
post_data = {"grant_type": "authorization_code",
"code": code,
"redirect_uri": REDIRECT_URI
}
response = requests.post(BASE_URL+"/oauth/token",
auth=client_auth,
data=post_data)
response_json = response.json()
return response_json["access_token"], response_json["refresh_token"], response_json['created_at']
# -------------------------app REDIRECTS --------------------------- #
app = Flask(__name__)
CORS(app)
# Need to use session variables which help us carry values of different webpages
app.secret_key = gen_secret_key()
@app.route('/', methods=["GET", "POST"])
def app_homepage():
return jsonify({"message": "Welcome. Please authenticate via /get_auth."})
@app.route('/get_auth', methods=["POST"])
def app_auth():
url = make_authorization_url()
return jsonify({"auth_url": url})
@app.route('/users/home', methods=['POST', 'GET'])
def app_callback():
if request.method == "GET":
if session.get('bool') is False:
code = request.args.get('code')
if not code:
return jsonify({"error": "Missing authorization code."}), 400
access_token, refresh_token, created_at = get_token(code)
session['access_token'] = access_token
session['refresh_token'] = refresh_token
session['created_at'] = update_date(created_at)
session['expires_at'] = update_expire(created_at)
session['bool'] = True
return jsonify({
"access_token": gen_token_disp(session.get('access_token')),
"created_at": session.get('created_at'),
"expires_at": session['expires_at'],
"refresh_token": gen_token_disp(session['refresh_token'])
})
@app.route('/users/me', methods=["GET"])
def app_page_me():
access_token = session.get('access_token')
if not access_token:
return jsonify({"error": "Not authenticated."}), 401
login, my_id = get_me(access_token)
return jsonify({"id": my_id, "login": login})
@app.route('/users/refreshtoken', methods=["POST"])
def app_refresh_token():
access_token = session.get('access_token')
refresh_token = session.get('refresh_token')
if not access_token or not refresh_token:
return jsonify({"error": "No token to refresh."}), 401
headers = {"Authorization": "Bearer " + access_token}
data = {
"client_id": CLIENT_ID,
"grant_type": "refresh_token",
"redirect_uri": REDIRECT_URI,
"client_secret": CLIENT_SECRET,
"refresh_token": refresh_token
}
response = requests.post(BASE_URL+'/oauth/token', data=data, headers=headers)
response_json = response.json()
session['access_token'] = response_json['access_token']
session['refresh_token'] = response_json['refresh_token']
session['created_at'] = update_date(response_json['created_at'])
session['expires_at'] = update_expire(response_json['created_at'])
return jsonify({
"access_token": gen_token_disp(session['access_token']),
"refresh_token": gen_token_disp(session['refresh_token']),
"created_at": session['created_at'],
"expires_at": session['expires_at']
})
@app.route('/users/revoketoken', methods=['POST'])
def app_revoke_token():
access_token = session.get('access_token')
if not access_token:
return jsonify({"error": "No token to revoke."}), 401
data = {
"client_id": CLIENT_ID,
"client_secret": CLIENT_SECRET,
"token": access_token
}
requests.post(BASE_URL+'/oauth/token', data=data)
session.clear()
return jsonify({"message": "Token revoked and session cleared."})