-
Notifications
You must be signed in to change notification settings - Fork 1
/
exchange.py
446 lines (379 loc) · 16.5 KB
/
exchange.py
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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
if __package__:
from .keystore import Keystore
else:
from keystore import Keystore
import hashlib
import hmac
import time
import webbrowser
from functools import partial
from http.server import BaseHTTPRequestHandler, HTTPServer
from urllib.parse import parse_qs, urlparse
from uuid import uuid4
import requests
from coinbase.rest import RESTClient # coinbase_v3
from coinbase.wallet.client import Client, OAuthClient # coinbase_v2
from pyjson5 import loads # , Json5DecoderException
# from json import dumps
# from requests import JSONDecodeError
from requests.auth import AuthBase
from requests.models import PreparedRequest, Response
MINUTE = 60 # seconds
# https://stackoverflow.com/a/52046062/4634229
class CbOaAuthHandler(BaseHTTPRequestHandler):
def __init__(self, exch, *args, **kwargs):
self.exch = exch
super().__init__(*args, **kwargs)
def do_GET(self):
parsed_path = urlparse(self.path)
self.exch._params = parse_qs(parsed_path.query)
self.send_response(200)
self.end_headers()
msg = """
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Redirecting to PyExch Github</title>
<meta http-equiv="refresh" content="3; url=https://github.com/brianddk/pyexch" />
</head>
<body>
<h1>Redirecting to github.com/brianddk/pyexch in 3... 2... 1...</h1>
</body>
</html>
"""
self.wfile.write(msg.encode("utf-8"))
# Mute the log to keep secrets off console
def log_message(self, format, *args):
return
class CbV2Auth(AuthBase):
def __init__(self, api_key, secret_key):
self.api_key = api_key
self.secret_key = secret_key
def __call__(self, request):
timestamp = str(int(time.time()))
message = timestamp + request.method + request.path_url + (request.body or "")
signature = hmac.new(
self.secret_key.encode(), message.encode(), hashlib.sha256
).hexdigest()
request.headers.update(
{
"CB-ACCESS-SIGN": signature,
"CB-ACCESS-TIMESTAMP": timestamp,
"CB-ACCESS-KEY": self.api_key,
"CB-VERSION": "2024-03-12",
"Content-Type": "application/json",
}
)
return request
class CbOa2Auth(AuthBase):
def __init__(self, token):
self.token = token
def __call__(self, request):
timestamp = str(int(time.time()))
request.headers.update(
{
"CB-ACCESS-TIMESTAMP": timestamp,
"CB-VERSION": "2024-03-12",
"Content-Type": "application/json",
"Authorization": "Bearer " + self.token,
}
)
return request
class Exchange:
@classmethod
def create(cls, keystore_json, default=None):
keystore = Keystore(keystore_json)
if default:
keystore.set("default", default)
if keystore.get("default"):
default = keystore.get("default")
if default and default.split(".")[0] == "coinbase" or keystore.get("coinbase"):
return Coinbase(keystore)
else:
return Exchange(keystore)
def __init__(self, keystore):
self.keystore = keystore
self._params = None
self._response = None
def my_ipv4(self):
return requests.get("https://v4.ident.me/").content.decode()
def my_ipv6(self):
return requests.get("https://v6.ident.me/").content.decode()
def new_uuid(self):
return uuid4()
def dbg(self):
token = self.keystore.get("coinbase.oauth2.token")
return f"DBG: {token[:4]}...{token[-4:]}"
def tick(self):
import time
expiration = self.keystore.get("coinbase.oauth2.expiration")
left = expiration - time.time()
hrs = left // (60 * 60)
min = (left - hrs * 60 * 60) // 60
sec = left - hrs * 60 * 60 - min * 60
return f"DBG: countdown {int(hrs):02}:{int(min):02}:{sec:0>02.2f}"
class Coinbase(Exchange):
def __init__(self, keystore):
super().__init__(keystore)
self._oa2_auth_handler = partial(CbOaAuthHandler, self)
if (
keystore.get("default") == "coinbase.v2_api"
and keystore.get("coinbase.v2_api.key")
and keystore.get("coinbase.v2_api.secret")
):
self.v2_client = Client(
keystore.get("coinbase.v2_api.key"),
keystore.get("coinbase.v2_api.secret"),
)
self.v2_req_auth = CbV2Auth(
keystore.get("coinbase.v2_api.key"),
keystore.get("coinbase.v2_api.secret"),
)
elif (
keystore.get("default") == "coinbase.oauth2"
and keystore.get("coinbase.oauth2.token")
and keystore.get("coinbase.oauth2.refresh")
):
self.oa2_client = OAuthClient(
keystore.get("coinbase.oauth2.token"),
keystore.get("coinbase.oauth2.refresh"),
)
self._response = self.oa2_refresh()
self._response = dict(msg="REDACTED") if self._response else self._response
self.oa2_req_auth = CbOa2Auth(
keystore.get("coinbase.oauth2.token"),
)
elif (
keystore.get("default") == "coinbase.v3_api"
and keystore.get("coinbase.v3_api.key")
and keystore.get("coinbase.v3_api.secret")
):
self.v3_client = RESTClient(
api_key=keystore.get("coinbase.v3_api.key"),
api_secret=keystore.get("coinbase.v3_api.secret"),
)
def get(self, uri, params=None):
self._response = None
trim_str = "https://api.coinbase.com"
uri = uri.replace(trim_str, "")
if params:
self._params = data_toDict(params)
if self.keystore.get("default") == "coinbase.oauth2":
if trim_cmp(trim_str, uri, self.keystore.get("coinbase.oauth2.auth_url")):
self._response = self.oa2_auth()
self._response = (
dict(msg="REDACTED") if self._response else self._response
)
else:
self._response = self.oa2_client._get(uri, params=params)
elif self.keystore.get("default") == "coinbase.v2_api":
self._response = self.v2_client._get(uri, params=params)
elif self.keystore.get("default") == "coinbase.v3_api":
self._response = self.v3_client.get(uri, params=params)
else:
print("todo unknown get") # todo unknown get
return data_toDict(self._response)
def post(self, uri, params=None):
data = params
self._response = None
trim_str = "https://api.coinbase.com"
uri = uri.replace(trim_str, "")
if data:
self._params = data_toDict(data)
if self.keystore.get("default") == "coinbase.oauth2":
if trim_cmp(trim_str, uri, self.keystore.get("coinbase.oauth2.token_url")):
self._response = self.oa2_refresh(force=True)
self._response = (
dict(msg="REDACTED") if self._response else self._response
)
elif trim_cmp(
trim_str, uri, self.keystore.get("coinbase.oauth2.revoke_url")
):
self._response = self.oa2_revoke()
else:
self._response = self.oa2_client._post(uri, data=data)
elif self.keystore.get("default") == "coinbase.v2_api":
self._response = self.v2_client._post(uri, data=data)
elif self.keystore.get("default") == "coinbase.v3_api":
self._response = self.v3_client.post(uri, data=data)
else:
print("todo unknown post") # todo unknown get
return data_toDict(self._response)
def put(self, uri, params=None):
data = params
self._response = None
trim_str = "https://api.coinbase.com"
uri = uri.replace(trim_str, "")
if data:
self._params = data_toDict(data)
if self.keystore.get("default") == "coinbase.oauth2":
self._response = self.oa2_client._put(uri, data=data)
elif self.keystore.get("default") == "coinbase.v2_api":
self._response = self.v2_client._put(uri, data=data)
elif self.keystore.get("default") == "coinbase.v3_api":
self._response = self.v3_client.put(uri, data=data)
else:
print("todo unknown post") # todo unknown get
return data_toDict(self._response)
def delete(self, uri, params=None):
self._response = None
trim_str = "https://api.coinbase.com"
uri = uri.replace(trim_str, "")
# No CB endpoint is using params or data on delete
# If added back, remember to put it in the calls below.
# data = params
# if data:
# self._params = data_toDict(data)
if self.keystore.get("default") == "coinbase.oauth2":
self._response = self.oa2_client._delete(uri)
elif self.keystore.get("default") == "coinbase.v2_api":
self._response = self.v2_client._delete(uri)
elif self.keystore.get("default") == "coinbase.v3_api":
self._response = self.v3_client.delete(uri)
else:
print("todo unknown post") # todo unknown get
return data_toDict(self._response)
def _raw_get(self, uri, params=None):
self._response = None
if params:
self._params = data_toDict(params)
if self.keystore.get("default") == "coinbase.oauth2":
if uri == self.keystore.get("coinbase.oauth2.auth_url"):
self._response = self.oa2_auth()
else:
self._response = requests.get(
uri, auth=self.oa2_req_auth, params=params
)
elif self.keystore.get("default") == "coinbase.v2_api":
self._response = requests.get(uri, auth=self.v2_req_auth, params=params)
elif self.keystore.get("default") == "coinbase.v3_api":
print("todo v3_api get fix") # Add some v3 get code
else:
print("todo unknown get") # todo unknown get
return data_toDict(self._response)
def oa2_auth(self):
# https://stackoverflow.com/a/49957974/4634229
self._params = dict(
response_type="code",
client_id=self.keystore.get("coinbase.oauth2.id"),
scope=self.keystore.get("coinbase.oauth2.scope"),
)
# rule https://forums.coinbasecloud.dev/t/walletsend-is-limited-1-00-day-per-user/866/2
# broke https://forums.coinbasecloud.dev/t/oauth-application-maximum-of-1-00-per-month/7096/13
# Confirmed this meta tags allow to set the send limit. Next is to try a send with CB-2FA-TOKEN
# header: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/sign-in-with-coinbase-2fa
if "wallet:transactions:send" in self.keystore.get("coinbase.oauth2.scope"):
self._params.update(
{
"meta[send_limit_amount]": 1,
"meta[send_limit_currency]": "USD",
"meta[send_limit_period]": "day",
}
)
req = PreparedRequest()
req.prepare_url(self.keystore.get("coinbase.oauth2.auth_url"), self._params)
webbrowser.open(req.url)
assert (
self.keystore.get("coinbase.oauth2.redirect_url").split(":")[1]
== "//localhost"
)
port = (
self.keystore.get("coinbase.oauth2.redirect_url")
.split(":")[2]
.split("/")[0]
)
# _oa2_auth_handler holds a pointer to Exchange.self to modify self._params
# Blocking call waiting for server to handle one request
run_server(int(port), self._oa2_auth_handler)
qparams = self._params
# print(qparams)
# self.keystore.set('coinbase.oauth2.login_identifier', qparams['login_identifier'][0])
# self.keystore.set('coinbase.oauth2.state', qparams['state'][0])
uri = self.keystore.get("coinbase.oauth2.token_url")
self._params = dict(
grant_type="authorization_code",
code=qparams["code"][0],
client_id=self.keystore.get("coinbase.oauth2.id"),
client_secret=self.keystore.get("coinbase.oauth2.secret"),
redirect_uri=self.keystore.get("coinbase.oauth2.redirect_url"),
)
# self.keystore.print()
# print(dumps(params, indent=2))
self._response = requests.post(uri, data=self._params)
if self._response:
data = self._response.json()
self.keystore.set("coinbase.oauth2.expiration", data["expired_at"])
self.keystore.set("coinbase.oauth2.token", data["access_token"])
self.keystore.set("coinbase.oauth2.refresh", data["refresh_token"])
self.keystore.save()
else:
print(self._response)
return data_toDict(self._response)
def oa2_refresh(self, force=False):
utime = time.time()
if (
int(self.keystore.get("coinbase.oauth2.expiration")) - utime > MINUTE
and not force
):
return dict() # no need to refresh, not forced
uri = self.keystore.get("coinbase.oauth2.token_url")
self._params = dict(
grant_type="refresh_token",
client_id=self.keystore.get("coinbase.oauth2.id"),
client_secret=self.keystore.get("coinbase.oauth2.secret"),
refresh_token=self.keystore.get("coinbase.oauth2.refresh"),
)
self._response = requests.post(uri, data=self._params)
if self._response:
data = self._response.json()
self.keystore.set("coinbase.oauth2.expiration", data["expired_at"])
self.keystore.set("coinbase.oauth2.token", data["access_token"])
self.keystore.set("coinbase.oauth2.refresh", data["refresh_token"])
self.oa2_client.access_token = data["access_token"]
self.oa2_client.refresh_token = data["refresh_token"]
self.keystore.save()
else:
print(self._response)
return data_toDict(self._response)
def oa2_revoke(self):
# todo: CVE broke? https://forums.coinbasecloud.dev/t/did-oauth2-revoke-uri-stop-doing-work/7394
uri = self.keystore.get("coinbase.oauth2.revoke_url")
self._params = dict(
token=self.keystore.get("coinbase.oauth2.token"),
client_id=self.keystore.get("coinbase.oauth2.id"),
client_secret=self.keystore.get("coinbase.oauth2.secret"),
)
self._response = requests.post(uri, data=self._params)
return data_toDict(self._response)
def run_server(port, handler):
server_address = ("", port)
httpd = HTTPServer(server_address, handler)
print(f"Server listening on port {port}...")
httpd.handle_request()
def data_toDict(data):
# bugbug: This should never happen, but the cloudflare (or whoever) server sometimes returns
# Requests.Response.content as <type 'str'> and other times as <type 'bytes'>. This breaks
# Requests.Response.json() since it expects 'bytes'
# https://github.com/psf/requests/blob/d63e94f/src/requests/models.py#L942
if type(data) is dict:
return data
if type(data) is Response:
if type(data.content) is str:
data = data.content
else:
try:
return data.json()
except Exception: # as e:
return dict()
if type(data) is str:
try:
return loads(data)
except Exception: # as e:
return dict()
def trim_cmp(trim_str, str_a, str_b):
str_a = str_a.replace(trim_str, "")
str_b = str_b.replace(trim_str, "")
return str_a == str_b