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
236
237
238
239
240
241
242
243
244
245
|
from datetime import datetime, timedelta
from collections import OrderedDict
import backoff
import requests
import singer
from singer import metrics
from singer import utils
BASE_URL = 'https://www.googleapis.com'
GOOGLE_TOKEN_URI = 'https://oauth2.googleapis.com/token'
LOGGER = singer.get_logger()
class Server5xxError(Exception):
pass
class Server429Error(Exception):
pass
class GoogleError(Exception):
pass
class GoogleBadRequestError(GoogleError):
pass
class GoogleUnauthorizedError(GoogleError):
pass
class GooglePaymentRequiredError(GoogleError):
pass
class GoogleNotFoundError(GoogleError):
pass
class GoogleMethodNotAllowedError(GoogleError):
pass
class GoogleConflictError(GoogleError):
pass
class GoogleGoneError(GoogleError):
pass
class GooglePreconditionFailedError(GoogleError):
pass
class GoogleRequestEntityTooLargeError(GoogleError):
pass
class GoogleRequestedRangeNotSatisfiableError(GoogleError):
pass
class GoogleExpectationFailedError(GoogleError):
pass
class GoogleForbiddenError(GoogleError):
pass
class GoogleUnprocessableEntityError(GoogleError):
pass
class GooglePreconditionRequiredError(GoogleError):
pass
class GoogleInternalServiceError(GoogleError):
pass
# Error Codes: https://developers.google.com/webmaster-tools/search-console-api-original/v3/errors
ERROR_CODE_EXCEPTION_MAPPING = {
400: GoogleBadRequestError,
401: GoogleUnauthorizedError,
402: GooglePaymentRequiredError,
403: GoogleForbiddenError,
404: GoogleNotFoundError,
405: GoogleMethodNotAllowedError,
409: GoogleConflictError,
410: GoogleGoneError,
412: GooglePreconditionFailedError,
413: GoogleRequestEntityTooLargeError,
416: GoogleRequestedRangeNotSatisfiableError,
417: GoogleExpectationFailedError,
422: GoogleUnprocessableEntityError,
428: GooglePreconditionRequiredError,
500: GoogleInternalServiceError}
def get_exception_for_error_code(error_code):
return ERROR_CODE_EXCEPTION_MAPPING.get(error_code, GoogleError)
def raise_for_error(response):
try:
response.raise_for_status()
except (requests.HTTPError, requests.ConnectionError) as error:
try:
content_length = len(response.content)
if content_length == 0:
# There is nothing we can do here since Google has neither sent
# us a 2xx response nor a response content.
return
response = response.json()
if ('error' in response) or ('errorCode' in response):
message = '%s: %s' % (response.get('error', str(error)),
response.get('message', 'Unknown Error'))
error_code = response.get('error', {}).get('code')
ex = get_exception_for_error_code(error_code)
raise ex(message)
raise GoogleError(error)
except (ValueError, TypeError):
raise GoogleError(error)
class GoogleClient: # pylint: disable=too-many-instance-attributes
def __init__(self,
client_id,
client_secret,
refresh_token,
user_agent=None):
self.__client_id = client_id
self.__client_secret = client_secret
self.__refresh_token = refresh_token
self.__user_agent = user_agent
self.__access_token = None
self.__expires = None
self.__session = requests.Session()
self.base_url = None
def __enter__(self):
self.get_access_token()
return self
def __exit__(self, exception_type, exception_value, traceback):
self.__session.close()
@backoff.on_exception(backoff.expo,
Server5xxError,
max_tries=5,
factor=2)
def get_access_token(self):
# The refresh_token never expires and may be used many times to generate each access_token
# Since the refresh_token does not expire, it is not included in get access_token response
if self.__access_token is not None and self.__expires > datetime.utcnow():
return
headers = {}
if self.__user_agent:
headers['User-Agent'] = self.__user_agent
response = self.__session.post(
url=GOOGLE_TOKEN_URI,
headers=headers,
data={
'grant_type': 'refresh_token',
'client_id': self.__client_id,
'client_secret': self.__client_secret,
'refresh_token': self.__refresh_token,
})
if response.status_code >= 500:
raise Server5xxError()
if response.status_code != 200:
raise_for_error(response)
data = response.json()
self.__access_token = data['access_token']
self.__expires = datetime.utcnow() + timedelta(seconds=data['expires_in'])
LOGGER.info('Authorized, token expires = {}'.format(self.__expires))
# Rate Limit: https://developers.google.com/sheets/api/limits
# 100 request per 100 seconds per User
@backoff.on_exception(backoff.expo,
(Server5xxError, ConnectionError, Server429Error),
max_tries=7,
factor=3)
@utils.ratelimit(100, 100)
def request(self, method, path=None, url=None, api=None, **kwargs):
self.get_access_token()
self.base_url = 'https://sheets.googleapis.com/v4'
if api == 'files':
self.base_url = 'https://www.googleapis.com/drive/v3'
if not url and path:
url = '{}/{}'.format(self.base_url, path)
# endpoint = stream_name (from sync.py API call)
if 'endpoint' in kwargs:
endpoint = kwargs['endpoint']
del kwargs['endpoint']
else:
endpoint = None
LOGGER.info('{} URL = {}'.format(endpoint, url))
if 'headers' not in kwargs:
kwargs['headers'] = {}
kwargs['headers']['Authorization'] = 'Bearer {}'.format(self.__access_token)
if self.__user_agent:
kwargs['headers']['User-Agent'] = self.__user_agent
if method == 'POST':
kwargs['headers']['Content-Type'] = 'application/json'
with metrics.http_request_timer(endpoint) as timer:
response = self.__session.request(method, url, **kwargs)
timer.tags[metrics.Tag.http_status_code] = response.status_code
if response.status_code >= 500:
raise Server5xxError()
#Use retry functionality in backoff to wait and retry if
#response code equals 429 because rate limit has been exceeded
if response.status_code == 429:
raise Server429Error()
if response.status_code != 200:
raise_for_error(response)
# Ensure keys and rows are ordered as received from API
return response.json(object_pairs_hook=OrderedDict)
def get(self, path, api, **kwargs):
return self.request(method='GET', path=path, api=api, **kwargs)
def post(self, path, api, **kwargs):
return self.request(method='POST', path=path, api=api, **kwargs)
|
