aboutsummaryrefslogtreecommitdiffstats
path: root/extract_token_from_browser.py
blob: 36fe49132b67e703cae3bf9e400bf28527acd312 (plain) (blame)
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
#!/usr/bin/env python3

from __future__ import annotations

import argparse
import json
import shutil
import sqlite3
import sys
import tempfile
from configparser import ConfigParser
from contextlib import contextmanager
from pathlib import Path
from sqlite3 import OperationalError
from typing import TYPE_CHECKING, Literal, assert_never

if TYPE_CHECKING:
    from _typeshed import StrPath


class AESCipher:
    def __init__(self, key):
        self.key = key

    def decrypt(self, text):
        cipher = AES.new(self.key, AES.MODE_CBC, IV=(b" " * 16))
        return self._unpad(cipher.decrypt(text))

    def _unpad(self, s):
        return s[: -ord(s[len(s) - 1 :])]


@contextmanager
def sqlite3_connect(path: StrPath):
    con = sqlite3.connect(f"file:{path}?immutable=1", uri=True)
    try:
        yield con
    finally:
        con.close()


def get_cookies(
    cookies_path: StrPath, cookie_query: str, params: tuple
) -> tuple[str, str | None]:
    with sqlite3_connect(cookies_path) as con:
        cookie_d_value = con.execute(cookie_query.format("d"), params).fetchone()
        cookie_ds_value = con.execute(cookie_query.format("ds"), params).fetchone()
        if cookie_d_value and cookie_ds_value:
            return cookie_d_value[0], cookie_ds_value[0]
        elif cookie_d_value:
            return cookie_d_value[0], None
        else:
            print(
                f"Couldn't find the 'd' cookie value in {cookies_path}", file=sys.stderr
            )
            sys.exit(1)


parser = argparse.ArgumentParser(
    description="Extract Slack tokens from the browser files"
)
parser.add_argument(
    "browser",
    help="Which browser to extract from",
    metavar="<browser>",
    choices=["firefox", "firefox-snap", "chromium", "chrome", "chrome-beta"],
)
parser.add_argument(
    "--profile", help="Profile to look up cookies for", metavar="<profile>", nargs="?"
)
parser.add_argument(
    "--container",
    help="Firefox container to look up cookies for",
    metavar="<id or name>",
    nargs="?",
)
parser.add_argument(
    "--no-secretstorage",
    help=(
        "Disable accessing freedesktop Secret D-Bus service, "
        "use the default password to decrypt Chrome cookies instead"
    ),
    action="store_true",
)
args = parser.parse_args()

browser: Literal["firefox", "chrome"]

if sys.platform.startswith("linux"):
    chrome_key_iterations = 1
    if args.browser == "firefox-snap":
        browser = "firefox"
        browser_data = Path.home().joinpath("snap/firefox/common/.mozilla/firefox")
    elif args.browser == "firefox":
        browser = "firefox"
        browser_data = Path.home().joinpath(".mozilla/firefox")
    elif args.browser == "chromium":
        browser = "chrome"
        browser_data = Path.home().joinpath(".config/chromium")
    elif args.browser in ["chrome", "chrome-beta"]:
        browser = "chrome"
        browser_data = Path.home().joinpath(".config/google-%s" % args.browser)
    else:
        print(
            f'Unsupported browser "{args.browser}" on platform Linux.', file=sys.stderr
        )
        sys.exit(1)
elif sys.platform.startswith("darwin"):
    chrome_key_iterations = 1003
    if args.browser in ["firefox", "firefox-snap"]:
        browser = "firefox"
        browser_data = Path.home().joinpath(
            "Library/Application Support/Firefox/Profiles"
        )
    elif args.browser == "chromium":
        browser = "chrome"
        browser_data = Path.home().joinpath("Library/Application Support/Chromium")
    elif args.browser in ["chrome", "chrome-beta"]:
        browser = "chrome"
        browser_data = Path.home().joinpath("Library/Application Support/Google/Chrome")
    else:
        print(
            f'Unsupported browser "{args.browser}" on platform macOS.', file=sys.stderr
        )
        sys.exit(1)
else:
    print("Currently only Linux and macOS is supported by this script", file=sys.stderr)
    sys.exit(1)

profile = args.profile

if browser == "firefox":
    default_profile_path = None
    if profile is not None:
        rel = browser_data.joinpath(profile)
        for p in [Path(profile), rel]:
            if p.exists():
                default_profile_path = p
                break

        if default_profile_path is None:
            print(f"Path {profile} doesn't exist", file=sys.stderr)
            sys.exit(1)
    else:
        profile_path = browser_data.joinpath("profiles.ini")
        profile_data = ConfigParser()
        profile_data.read(profile_path)

        for key in profile_data.sections():
            if not key.startswith("Install"):
                continue

            value = profile_data[key]
            if "Default" in value:
                default_profile_path = browser_data.joinpath(value["Default"])
                break

        if default_profile_path is None or not default_profile_path.exists():
            print(
                "Default profile detection failed; try specifying --profile",
                file=sys.stderr,
            )
            sys.exit(1)

    cookies_path = default_profile_path.joinpath("cookies.sqlite")

    if args.container:
        try:
            ctx_id = int(args.container)
        except ValueError:
            # non-numeric container ID, try to find by name
            ctx_id = None
            with open(default_profile_path.joinpath("containers.json"), "rb") as fp:
                containers = json.load(fp)
                for i in containers["identities"]:
                    if "name" in i and i["name"] == args.container:
                        ctx_id = i["userContextId"]
                        break
            if ctx_id is None:
                print(
                    f"Couldn't find Firefox container '{args.container}'",
                    file=sys.stderr,
                )
                sys.exit(1)

        userctx = f"^userContextId={ctx_id}"
    else:
        userctx = ""

    cookie_query = (
        "SELECT value FROM moz_cookies WHERE originAttributes = ? "
        "AND host = '.slack.com' AND name = '{}'"
    )
    cookie_d_value, cookie_ds_value = get_cookies(
        cookies_path, cookie_query, (userctx,)
    )

    storage_path = default_profile_path.joinpath(
        f"storage/default/https+++app.slack.com{userctx}/ls/data.sqlite"
    )
    storage_query = "SELECT compression_type, conversion_type, value FROM data WHERE key = 'localConfig_v2'"
    local_config = None

    try:
        with sqlite3_connect(storage_path) as con:
            is_compressed, conversion, payload = con.execute(storage_query).fetchone()

        if is_compressed:
            from snappy import snappy

            payload = snappy.decompress(payload)

        if conversion == 1:
            local_config_str = payload.decode("utf-8")
        else:
            # untested; possibly Windows-only?
            local_config_str = payload.decode("utf-16")

        local_config = json.loads(local_config_str)
    except (OperationalError, TypeError):
        pass

elif browser == "chrome":
    import secretstorage
    from Crypto.Cipher import AES
    from Crypto.Protocol.KDF import PBKDF2
    from plyvel import DB
    from plyvel._plyvel import IOError as pIOErr
    from secretstorage.exceptions import SecretStorageException

    if not profile:
        profile = "Default"

    default_profile_path = browser_data.joinpath(profile)

    cookies_path = default_profile_path.joinpath("Cookies")
    cookie_query = (
        "SELECT encrypted_value FROM cookies WHERE "
        "host_key = '.slack.com' AND name = '{}'"
    )
    cookie_d_value, cookie_ds_value = get_cookies(cookies_path, cookie_query, ())

    if args.no_secretstorage:
        passwd = "peanuts"
    else:
        bus = secretstorage.dbus_init()
        try:
            collection = secretstorage.get_default_collection(bus)
            for item in collection.get_all_items():
                if item.get_label() == "Chrome Safe Storage":
                    passwd = item.get_secret()
                    break
            else:
                raise Exception("Chrome password not found!")
        except SecretStorageException:
            print(
                "Error communicating org.freedesktop.secrets, trying 'peanuts' "
                "as a password",
                file=sys.stderr,
            )
            passwd = "peanuts"

    salt = b"saltysalt"
    length = 16
    key = PBKDF2(passwd, salt, length, chrome_key_iterations)
    cipher = AESCipher(key)

    cookie_d_value = cipher.decrypt(cookie_d_value[3:]).decode("utf8")
    if cookie_ds_value:
        cookie_ds_value = cipher.decrypt(cookie_ds_value[3:]).decode("utf8")

    local_storage_path = default_profile_path.joinpath("Local Storage")
    leveldb_path = local_storage_path.joinpath("leveldb")
    leveldb_key = b"_https://app.slack.com\x00\x01localConfig_v2"
    try:
        db = DB(str(leveldb_path))
        local_storage_value = db.get(leveldb_key)
    except pIOErr:
        with tempfile.TemporaryDirectory(
            dir=local_storage_path, prefix="leveldb-", suffix=".tmp"
        ) as tmp_dir:
            shutil.copytree(leveldb_path, tmp_dir, dirs_exist_ok=True)
            db = DB(tmp_dir)
            local_storage_value = db.get(leveldb_key)

    local_config = json.loads(local_storage_value[1:]) if local_storage_value else None

else:
    assert_never(browser)

if cookie_ds_value:
    cookie_value = f"d={cookie_d_value};d-s={cookie_ds_value}"
else:
    cookie_value = cookie_d_value

if local_config:
    teams = [
        team
        for team in local_config["teams"].values()
        if not team["id"].startswith("E")
    ]
else:
    teams = [
        {
            "token": "<token>",
            "name": (
                "Couldn't find any tokens automatically, but you can try to extract "
                "it manually as described in the readme and register the team like this"
            ),
        }
    ]

register_commands = [
    f"{team['name']}:\n/slack register {team['token']}:{cookie_value}" for team in teams
]
print("\n\n".join(register_commands))