-
Notifications
You must be signed in to change notification settings - Fork 308
/
firefox_decrypt.py
executable file
·1227 lines (994 loc) · 38.5 KB
/
firefox_decrypt.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
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Based on original work from: www.dumpzilla.org
from __future__ import annotations
import argparse
import csv
import ctypes as ct
import json
import logging
import locale
import os
import platform
import sqlite3
import sys
import shutil
from base64 import b64decode
from getpass import getpass
from itertools import chain
from subprocess import run, PIPE, DEVNULL
from urllib.parse import urlparse
from configparser import ConfigParser
from typing import Optional, Iterator, Any
LOG: logging.Logger
VERBOSE = False
SYSTEM = platform.system()
SYS64 = sys.maxsize > 2**32
DEFAULT_ENCODING = "utf-8"
PWStore = list[dict[str, str]]
# NOTE: In 1.0.0-rc1 we tried to use locale information to encode/decode
# content passed to NSS. This was an attempt to address the encoding issues
# affecting Windows. However after additional testing Python now also defaults
# to UTF-8 for encoding.
# Some of the limitations of Windows have to do with poor support for UTF-8
# characters in cmd.exe. Terminal - https://github.com/microsoft/terminal or
# a Bash shell such as Git Bash - https://git-scm.com/downloads are known to
# provide a better user experience and are therefore recommended
def get_version() -> str:
"""Obtain version information from git if available otherwise use
the internal version number
"""
def internal_version():
return ".".join(map(str, __version_info__[:3])) + "".join(__version_info__[3:])
try:
p = run(["git", "describe", "--tags"], stdout=PIPE, stderr=DEVNULL, text=True)
except FileNotFoundError:
return internal_version()
if p.returncode:
return internal_version()
else:
return p.stdout.strip()
__version_info__ = (1, 1, 1, "+git")
__version__: str = get_version()
class NotFoundError(Exception):
"""Exception to handle situations where a credentials file is not found"""
pass
class Exit(Exception):
"""Exception to allow a clean exit from any point in execution"""
CLEAN = 0
ERROR = 1
MISSING_PROFILEINI = 2
MISSING_SECRETS = 3
BAD_PROFILEINI = 4
LOCATION_NO_DIRECTORY = 5
BAD_SECRETS = 6
BAD_LOCALE = 7
FAIL_LOCATE_NSS = 10
FAIL_LOAD_NSS = 11
FAIL_INIT_NSS = 12
FAIL_NSS_KEYSLOT = 13
FAIL_SHUTDOWN_NSS = 14
BAD_PRIMARY_PASSWORD = 15
NEED_PRIMARY_PASSWORD = 16
DECRYPTION_FAILED = 17
PASSSTORE_NOT_INIT = 20
PASSSTORE_MISSING = 21
PASSSTORE_ERROR = 22
READ_GOT_EOF = 30
MISSING_CHOICE = 31
NO_SUCH_PROFILE = 32
UNKNOWN_ERROR = 100
KEYBOARD_INTERRUPT = 102
def __init__(self, exitcode):
self.exitcode = exitcode
def __unicode__(self):
return f"Premature program exit with exit code {self.exitcode}"
class Credentials:
"""Base credentials backend manager"""
def __init__(self, db):
self.db = db
LOG.debug("Database location: %s", self.db)
if not os.path.isfile(db):
raise NotFoundError(f"ERROR - {db} database not found\n")
LOG.info("Using %s for credentials.", db)
def __iter__(self) -> Iterator[tuple[str, str, str, int]]:
pass
def done(self):
"""Override this method if the credentials subclass needs to do any
action after interaction
"""
pass
class SqliteCredentials(Credentials):
"""SQLite credentials backend manager"""
def __init__(self, profile):
db = os.path.join(profile, "signons.sqlite")
super(SqliteCredentials, self).__init__(db)
self.conn = sqlite3.connect(db)
self.c = self.conn.cursor()
def __iter__(self) -> Iterator[tuple[str, str, str, int]]:
LOG.debug("Reading password database in SQLite format")
self.c.execute(
"SELECT hostname, encryptedUsername, encryptedPassword, encType "
"FROM moz_logins"
)
for i in self.c:
# yields hostname, encryptedUsername, encryptedPassword, encType
yield i
def done(self):
"""Close the sqlite cursor and database connection"""
super(SqliteCredentials, self).done()
self.c.close()
self.conn.close()
class JsonCredentials(Credentials):
"""JSON credentials backend manager"""
def __init__(self, profile):
db = os.path.join(profile, "logins.json")
super(JsonCredentials, self).__init__(db)
def __iter__(self) -> Iterator[tuple[str, str, str, int]]:
with open(self.db) as fh:
LOG.debug("Reading password database in JSON format")
data = json.load(fh)
try:
logins = data["logins"]
except Exception:
LOG.error(f"Unrecognized format in {self.db}")
raise Exit(Exit.BAD_SECRETS)
for i in logins:
try:
yield (
i["hostname"],
i["encryptedUsername"],
i["encryptedPassword"],
i["encType"],
)
except KeyError:
# This should handle deleted passwords that still maintain
# a record in the JSON file - GitHub issue #99
LOG.info(f"Skipped record {i} due to missing fields")
def find_nss(locations: list[str], nssname: str) -> ct.CDLL:
"""Locate nss is one of the many possible locations"""
fail_errors: list[tuple[str, str]] = []
OS = ("Windows", "Darwin")
for loc in locations:
nsslib = os.path.join(loc, nssname)
LOG.debug("Loading NSS library from %s", nsslib)
if SYSTEM in OS:
# On windows in order to find DLLs referenced by nss3.dll
# we need to have those locations on PATH
os.environ["PATH"] = ";".join([loc, os.environ["PATH"]])
LOG.debug("PATH is now %s", os.environ["PATH"])
# However this doesn't seem to work on all setups and needs to be
# set before starting python so as a workaround we chdir to
# Firefox's nss3.dll/libnss3.dylib location
if loc:
if not os.path.isdir(loc):
# No point in trying to load from paths that don't exist
continue
workdir = os.getcwd()
os.chdir(loc)
try:
nss: ct.CDLL = ct.CDLL(nsslib)
except OSError as e:
fail_errors.append((nsslib, str(e)))
else:
LOG.debug("Loaded NSS library from %s", nsslib)
return nss
finally:
if SYSTEM in OS and loc:
# Restore workdir changed above
os.chdir(workdir)
else:
LOG.error(
"Couldn't find or load '%s'. This library is essential "
"to interact with your Mozilla profile.",
nssname,
)
LOG.error(
"If you are seeing this error please perform a system-wide "
"search for '%s' and file a bug report indicating any "
"location found. Thanks!",
nssname,
)
LOG.error(
"Alternatively you can try launching firefox_decrypt "
"from the location where you found '%s'. "
"That is 'cd' or 'chdir' to that location and run "
"firefox_decrypt from there.",
nssname,
)
LOG.error(
"Please also include the following on any bug report. "
"Errors seen while searching/loading NSS:"
)
for target, error in fail_errors:
LOG.error("Error when loading %s was %s", target, error)
raise Exit(Exit.FAIL_LOCATE_NSS)
def load_libnss():
"""Load libnss into python using the CDLL interface"""
locations: list[str] = [
os.environ.get("NSS_LIB_PATH", ""),
]
if SYSTEM == "Windows":
nssname = "nss3.dll"
if not SYS64:
locations += [
"", # Current directory or system lib finder
"C:\\Program Files (x86)\\Mozilla Firefox",
"C:\\Program Files (x86)\\Firefox Developer Edition",
"C:\\Program Files (x86)\\Mozilla Thunderbird",
"C:\\Program Files (x86)\\Nightly",
"C:\\Program Files (x86)\\SeaMonkey",
"C:\\Program Files (x86)\\Waterfox",
]
locations += [
"", # Current directory or system lib finder
os.path.expanduser("~\\AppData\\Local\\Mozilla Firefox"),
os.path.expanduser("~\\AppData\\Local\\Firefox Developer Edition"),
os.path.expanduser("~\\AppData\\Local\\Mozilla Thunderbird"),
os.path.expanduser("~\\AppData\\Local\\Nightly"),
os.path.expanduser("~\\AppData\\Local\\SeaMonkey"),
os.path.expanduser("~\\AppData\\Local\\Waterfox"),
"C:\\Program Files\\Mozilla Firefox",
"C:\\Program Files\\Firefox Developer Edition",
"C:\\Program Files\\Mozilla Thunderbird",
"C:\\Program Files\\Nightly",
"C:\\Program Files\\SeaMonkey",
"C:\\Program Files\\Waterfox",
]
# If either of the supported software is in PATH try to use it
software = ["firefox", "thunderbird", "waterfox", "seamonkey"]
for binary in software:
location: Optional[str] = shutil.which(binary)
if location is not None:
nsslocation: str = os.path.join(os.path.dirname(location), nssname)
locations.append(nsslocation)
elif SYSTEM == "Darwin":
nssname = "libnss3.dylib"
locations += [
"", # Current directory or system lib finder
"/usr/local/lib/nss",
"/usr/local/lib",
"/opt/local/lib/nss",
"/sw/lib/firefox",
"/sw/lib/mozilla",
"/usr/local/opt/nss/lib", # nss installed with Brew on Darwin
"/opt/homebrew/lib", # nss installed with Brew on Darwin/Apple Silicon
"/opt/pkg/lib/nss", # installed via pkgsrc
"/Applications/Firefox.app/Contents/MacOS", # default manual install location
"/Applications/Thunderbird.app/Contents/MacOS",
"/Applications/SeaMonkey.app/Contents/MacOS",
"/Applications/Waterfox.app/Contents/MacOS",
]
else:
nssname = "libnss3.so"
if SYS64:
locations += [
"", # Current directory or system lib finder
"/usr/lib64",
"/usr/lib64/nss",
"/usr/lib",
"/usr/lib/nss",
"/usr/local/lib",
"/usr/local/lib/nss",
"/opt/local/lib",
"/opt/local/lib/nss",
os.path.expanduser("~/.nix-profile/lib"),
]
else:
locations += [
"", # Current directory or system lib finder
"/usr/lib",
"/usr/lib/nss",
"/usr/lib32",
"/usr/lib32/nss",
"/usr/lib64",
"/usr/lib64/nss",
"/usr/local/lib",
"/usr/local/lib/nss",
"/opt/local/lib",
"/opt/local/lib/nss",
os.path.expanduser("~/.nix-profile/lib"),
]
# If this succeeds libnss was loaded
return find_nss(locations, nssname)
class c_char_p_fromstr(ct.c_char_p):
"""ctypes char_p override that handles encoding str to bytes"""
def from_param(self):
return self.encode(DEFAULT_ENCODING)
class NSSProxy:
class SECItem(ct.Structure):
"""struct needed to interact with libnss"""
_fields_ = [
("type", ct.c_uint),
("data", ct.c_char_p), # actually: unsigned char *
("len", ct.c_uint),
]
def decode_data(self):
_bytes = ct.string_at(self.data, self.len)
return _bytes.decode(DEFAULT_ENCODING)
class PK11SlotInfo(ct.Structure):
"""Opaque structure representing a logical PKCS slot"""
def __init__(self, non_fatal_decryption=False):
# Locate libnss and try loading it
self.libnss = load_libnss()
self.non_fatal_decryption = non_fatal_decryption
SlotInfoPtr = ct.POINTER(self.PK11SlotInfo)
SECItemPtr = ct.POINTER(self.SECItem)
self._set_ctypes(ct.c_int, "NSS_Init", c_char_p_fromstr)
self._set_ctypes(ct.c_int, "NSS_Shutdown")
self._set_ctypes(SlotInfoPtr, "PK11_GetInternalKeySlot")
self._set_ctypes(None, "PK11_FreeSlot", SlotInfoPtr)
self._set_ctypes(ct.c_int, "PK11_NeedLogin", SlotInfoPtr)
self._set_ctypes(
ct.c_int, "PK11_CheckUserPassword", SlotInfoPtr, c_char_p_fromstr
)
self._set_ctypes(
ct.c_int, "PK11SDR_Decrypt", SECItemPtr, SECItemPtr, ct.c_void_p
)
self._set_ctypes(None, "SECITEM_ZfreeItem", SECItemPtr, ct.c_int)
# for error handling
self._set_ctypes(ct.c_int, "PORT_GetError")
self._set_ctypes(ct.c_char_p, "PR_ErrorToName", ct.c_int)
self._set_ctypes(ct.c_char_p, "PR_ErrorToString", ct.c_int, ct.c_uint32)
def _set_ctypes(self, restype, name, *argtypes):
"""Set input/output types on libnss C functions for automatic type casting"""
res = getattr(self.libnss, name)
res.argtypes = argtypes
res.restype = restype
# Transparently handle decoding to string when returning a c_char_p
if restype == ct.c_char_p:
def _decode(result, func, *args):
try:
return result.decode(DEFAULT_ENCODING)
except AttributeError:
return result
res.errcheck = _decode
setattr(self, "_" + name, res)
def initialize(self, profile: str):
# The sql: prefix ensures compatibility with both
# Berkley DB (cert8) and Sqlite (cert9) dbs
profile_path = "sql:" + profile
LOG.debug("Initializing NSS with profile '%s'", profile_path)
err_status: int = self._NSS_Init(profile_path)
LOG.debug("Initializing NSS returned %s", err_status)
if err_status:
self.handle_error(
Exit.FAIL_INIT_NSS,
"Couldn't initialize NSS, maybe '%s' is not a valid profile?",
profile,
)
def shutdown(self):
err_status: int = self._NSS_Shutdown()
if err_status:
self.handle_error(
Exit.FAIL_SHUTDOWN_NSS,
"Couldn't shutdown current NSS profile",
)
def authenticate(self, profile, interactive):
"""Unlocks the profile if necessary, in which case a password
will prompted to the user.
"""
LOG.debug("Retrieving internal key slot")
keyslot = self._PK11_GetInternalKeySlot()
LOG.debug("Internal key slot %s", keyslot)
if not keyslot:
self.handle_error(
Exit.FAIL_NSS_KEYSLOT,
"Failed to retrieve internal KeySlot",
)
try:
if self._PK11_NeedLogin(keyslot):
password: str = ask_password(profile, interactive)
LOG.debug("Authenticating with password '%s'", password)
err_status: int = self._PK11_CheckUserPassword(keyslot, password)
LOG.debug("Checking user password returned %s", err_status)
if err_status:
self.handle_error(
Exit.BAD_PRIMARY_PASSWORD,
"Primary password is not correct",
)
else:
LOG.info("No Primary Password found - no authentication needed")
finally:
# Avoid leaking PK11KeySlot
self._PK11_FreeSlot(keyslot)
def handle_error(self, exitcode: int, *logerror: Any):
"""If an error happens in libnss, handle it and print some debug information"""
if logerror:
LOG.error(*logerror)
else:
LOG.debug("Error during a call to NSS library, trying to obtain error info")
code = self._PORT_GetError()
name = self._PR_ErrorToName(code)
name = "NULL" if name is None else name
# 0 is the default language (localization related)
text = self._PR_ErrorToString(code, 0)
LOG.debug("%s: %s", name, text)
raise Exit(exitcode)
def decrypt(self, data64):
data = b64decode(data64)
inp = self.SECItem(0, data, len(data))
out = self.SECItem(0, None, 0)
err_status: int = self._PK11SDR_Decrypt(inp, out, None)
LOG.debug("Decryption of data returned %s", err_status)
try:
if err_status: # -1 means password failed, other status are unknown
error_msg = (
"Username/Password decryption failed. "
"Credentials damaged or cert/key file mismatch."
)
if self.non_fatal_decryption:
raise ValueError(error_msg)
else:
self.handle_error(Exit.DECRYPTION_FAILED, error_msg)
res = out.decode_data()
finally:
# Avoid leaking SECItem
self._SECITEM_ZfreeItem(out, 0)
return res
class MozillaInteraction:
"""
Abstraction interface to Mozilla profile and lib NSS
"""
def __init__(self, non_fatal_decryption=False):
self.profile = None
self.proxy = NSSProxy(non_fatal_decryption)
def load_profile(self, profile):
"""Initialize the NSS library and profile"""
self.profile = profile
self.proxy.initialize(self.profile)
def authenticate(self, interactive):
"""Authenticate the the current profile is protected by a primary password,
prompt the user and unlock the profile.
"""
self.proxy.authenticate(self.profile, interactive)
def unload_profile(self):
"""Shutdown NSS and deactivate current profile"""
self.proxy.shutdown()
def decrypt_passwords(self) -> PWStore:
"""Decrypt requested profile using the provided password.
Returns all passwords in a list of dicts
"""
credentials: Credentials = self.obtain_credentials()
LOG.info("Decrypting credentials")
outputs: PWStore = []
url: str
user: str
passw: str
enctype: int
for url, user, passw, enctype in credentials:
# enctype informs if passwords need to be decrypted
if enctype:
try:
LOG.debug("Decrypting username data '%s'", user)
user = self.proxy.decrypt(user)
LOG.debug("Decrypting password data '%s'", passw)
passw = self.proxy.decrypt(passw)
except (TypeError, ValueError) as e:
LOG.warning(
"Failed to decode username or password for entry from URL %s",
url,
)
LOG.debug(e, exc_info=True)
user = "*** decryption failed ***"
passw = "*** decryption failed ***"
LOG.debug(
"Decoded username '%s' and password '%s' for website '%s'",
user,
passw,
url,
)
output = {"url": url, "user": user, "password": passw}
outputs.append(output)
if not outputs:
LOG.warning("No passwords found in selected profile")
# Close credential handles (SQL)
credentials.done()
return outputs
def obtain_credentials(self) -> Credentials:
"""Figure out which of the 2 possible backend credential engines is available"""
credentials: Credentials
try:
credentials = JsonCredentials(self.profile)
except NotFoundError:
try:
credentials = SqliteCredentials(self.profile)
except NotFoundError:
LOG.error(
"Couldn't find credentials file (logins.json or signons.sqlite)."
)
raise Exit(Exit.MISSING_SECRETS)
return credentials
class OutputFormat:
def __init__(self, pwstore: PWStore, cmdargs: argparse.Namespace):
self.pwstore = pwstore
self.cmdargs = cmdargs
def output(self):
pass
class HumanOutputFormat(OutputFormat):
def output(self):
for output in self.pwstore:
record: str = (
f"\nWebsite: {output['url']}\n"
f"Username: '{output['user']}'\n"
f"Password: '{output['password']}'\n"
)
sys.stdout.write(record)
class JSONOutputFormat(OutputFormat):
def output(self):
sys.stdout.write(json.dumps(self.pwstore, indent=2))
# Json dumps doesn't add the final newline
sys.stdout.write("\n")
class CSVOutputFormat(OutputFormat):
def __init__(self, pwstore: PWStore, cmdargs: argparse.Namespace):
super().__init__(pwstore, cmdargs)
self.delimiter = cmdargs.csv_delimiter
self.quotechar = cmdargs.csv_quotechar
self.header = cmdargs.csv_header
def output(self):
csv_writer = csv.DictWriter(
sys.stdout,
fieldnames=["url", "user", "password"],
lineterminator="\n",
delimiter=self.delimiter,
quotechar=self.quotechar,
quoting=csv.QUOTE_ALL,
)
if self.header:
csv_writer.writeheader()
for output in self.pwstore:
csv_writer.writerow(output)
class TabularOutputFormat(CSVOutputFormat):
def __init__(self, pwstore: PWStore, cmdargs: argparse.Namespace):
super().__init__(pwstore, cmdargs)
self.delimiter = "\t"
self.quotechar = "'"
class PassOutputFormat(OutputFormat):
def __init__(self, pwstore: PWStore, cmdargs: argparse.Namespace):
super().__init__(pwstore, cmdargs)
self.prefix = cmdargs.pass_prefix
self.cmd = cmdargs.pass_cmd
self.username_prefix = cmdargs.pass_username_prefix
self.always_with_login = cmdargs.pass_always_with_login
def output(self):
self.test_pass_cmd()
self.preprocess_outputs()
self.export()
def test_pass_cmd(self) -> None:
"""Check if pass from passwordstore.org is installed
If it is installed but not initialized, initialize it
"""
LOG.debug("Testing if password store is installed and configured")
try:
p = run([self.cmd, "ls"], capture_output=True, text=True)
except FileNotFoundError as e:
if e.errno == 2:
LOG.error("Password store is not installed and exporting was requested")
raise Exit(Exit.PASSSTORE_MISSING)
else:
LOG.error("Unknown error happened.")
LOG.error("Error was '%s'", e)
raise Exit(Exit.UNKNOWN_ERROR)
LOG.debug("pass returned:\nStdout: %s\nStderr: %s", p.stdout, p.stderr)
if p.returncode != 0:
if 'Try "pass init"' in p.stderr:
LOG.error("Password store was not initialized.")
LOG.error("Initialize the password store manually by using 'pass init'")
raise Exit(Exit.PASSSTORE_NOT_INIT)
else:
LOG.error("Unknown error happened when running 'pass'.")
LOG.error("Stdout: %s\nStderr: %s", p.stdout, p.stderr)
raise Exit(Exit.UNKNOWN_ERROR)
def preprocess_outputs(self):
# Format of "self.to_export" should be:
# {"address": {"login": "password", ...}, ...}
self.to_export: dict[str, dict[str, str]] = {}
for record in self.pwstore:
url = record["url"]
user = record["user"]
passw = record["password"]
# Keep track of web-address, username and passwords
# If more than one username exists for the same web-address
# the username will be used as name of the file
address = urlparse(url)
if address.netloc not in self.to_export:
self.to_export[address.netloc] = {user: passw}
else:
self.to_export[address.netloc][user] = passw
def export(self):
"""Export given passwords to password store
Format of "to_export" should be:
{"address": {"login": "password", ...}, ...}
"""
LOG.info("Exporting credentials to password store")
if self.prefix:
prefix = f"{self.prefix}/"
else:
prefix = self.prefix
LOG.debug("Using pass prefix '%s'", prefix)
for address in self.to_export:
for user, passw in self.to_export[address].items():
# When more than one account exist for the same address, add
# the login to the password identifier
if self.always_with_login or len(self.to_export[address]) > 1:
passname = f"{prefix}{address}/{user}"
else:
passname = f"{prefix}{address}"
LOG.info("Exporting credentials for '%s'", passname)
data = f"{passw}\n{self.username_prefix}{user}\n"
LOG.debug("Inserting pass '%s' '%s'", passname, data)
# NOTE --force is used. Existing passwords will be overwritten
cmd: list[str] = [
self.cmd,
"insert",
"--force",
"--multiline",
passname,
]
LOG.debug("Running command '%s' with stdin '%s'", cmd, data)
p = run(cmd, input=data, capture_output=True, text=True)
if p.returncode != 0:
LOG.error(
"ERROR: passwordstore exited with non-zero: %s", p.returncode
)
LOG.error("Stdout: %s\nStderr: %s", p.stdout, p.stderr)
raise Exit(Exit.PASSSTORE_ERROR)
LOG.debug("Successfully exported '%s'", passname)
def get_sections(profiles):
"""
Returns hash of profile numbers and profile names.
"""
sections = {}
i = 1
for section in profiles.sections():
if section.startswith("Profile"):
sections[str(i)] = profiles.get(section, "Path")
i += 1
else:
continue
return sections
def print_sections(sections, textIOWrapper=sys.stderr):
"""
Prints all available sections to an textIOWrapper (defaults to sys.stderr)
"""
for i in sorted(sections):
textIOWrapper.write(f"{i} -> {sections[i]}\n")
textIOWrapper.flush()
def ask_section(sections: ConfigParser):
"""
Prompt the user which profile should be used for decryption
"""
# Do not ask for choice if user already gave one
choice = "ASK"
while choice not in sections:
sys.stderr.write("Select the Mozilla profile you wish to decrypt\n")
print_sections(sections)
try:
choice = input()
except EOFError:
LOG.error("Could not read Choice, got EOF")
raise Exit(Exit.READ_GOT_EOF)
try:
final_choice = sections[choice]
except KeyError:
LOG.error("Profile No. %s does not exist!", choice)
raise Exit(Exit.NO_SUCH_PROFILE)
LOG.debug("Profile selection matched %s", final_choice)
return final_choice
def ask_password(profile: str, interactive: bool) -> str:
"""
Prompt for profile password
"""
passwd: str
passmsg = f"\nPrimary Password for profile {profile}: "
if sys.stdin.isatty() and interactive:
passwd = getpass(passmsg)
else:
sys.stderr.write("Reading Primary password from standard input:\n")
sys.stderr.flush()
# Ability to read the password from stdin (echo "pass" | ./firefox_...)
passwd = sys.stdin.readline().rstrip("\n")
return passwd
def read_profiles(basepath):
"""
Parse Firefox profiles in provided location.
If list_profiles is true, will exit after listing available profiles.
"""
profileini = os.path.join(basepath, "profiles.ini")
LOG.debug("Reading profiles from %s", profileini)
if not os.path.isfile(profileini):
LOG.warning("profile.ini not found in %s", basepath)
raise Exit(Exit.MISSING_PROFILEINI)
# Read profiles from Firefox profile folder
profiles = ConfigParser()
profiles.read(profileini, encoding=DEFAULT_ENCODING)
LOG.debug("Read profiles %s", profiles.sections())
return profiles
def get_profile(
basepath: str, interactive: bool, choice: Optional[str], list_profiles: bool
):
"""
Select profile to use by either reading profiles.ini or assuming given
path is already a profile
If interactive is false, will not try to ask which profile to decrypt.
choice contains the choice the user gave us as an CLI arg.
If list_profiles is true will exits after listing all available profiles.
"""
try:
profiles: ConfigParser = read_profiles(basepath)
except Exit as e:
if e.exitcode == Exit.MISSING_PROFILEINI:
LOG.warning("Continuing and assuming '%s' is a profile location", basepath)
profile = basepath
if list_profiles:
LOG.error("Listing single profiles not permitted.")
raise
if not os.path.isdir(profile):
LOG.error("Profile location '%s' is not a directory", profile)
raise
else:
raise
else:
if list_profiles:
LOG.debug("Listing available profiles...")
print_sections(get_sections(profiles), sys.stdout)
raise Exit(Exit.CLEAN)
sections = get_sections(profiles)
if len(sections) == 1:
section = sections["1"]
elif choice is not None:
try:
section = sections[choice]
except KeyError:
LOG.error("Profile No. %s does not exist!", choice)
raise Exit(Exit.NO_SUCH_PROFILE)
elif not interactive:
LOG.error(
"Don't know which profile to decrypt. "
"We are in non-interactive mode and -c/--choice wasn't specified."
)
raise Exit(Exit.MISSING_CHOICE)
else:
# Ask user which profile to open
section = ask_section(sections)
section = section
profile = os.path.join(basepath, section)
if not os.path.isdir(profile):
LOG.error(
"Profile location '%s' is not a directory. Has profiles.ini been tampered with?",
profile,
)
raise Exit(Exit.BAD_PROFILEINI)
return profile
# From https://bugs.python.org/msg323681
class ConvertChoices(argparse.Action):
"""Argparse action that interprets the `choices` argument as a dict
mapping the user-specified choices values to the resulting option
values.
"""
def __init__(self, *args, choices, **kwargs):
super().__init__(*args, choices=choices.keys(), **kwargs)
self.mapping = choices
def __call__(self, parser, namespace, value, option_string=None):
setattr(namespace, self.dest, self.mapping[value])
def parse_sys_args() -> argparse.Namespace:
"""Parse command line arguments"""
if SYSTEM == "Windows":
profile_path = os.path.join(os.environ["APPDATA"], "Mozilla", "Firefox")
elif os.uname()[0] == "Darwin":
profile_path = "~/Library/Application Support/Firefox"
else:
profile_path = "~/.mozilla/firefox"
parser = argparse.ArgumentParser(
description="Access Firefox/Thunderbird profiles and decrypt existing passwords"
)
parser.add_argument(
"profile",
nargs="?",
default=profile_path,
help=f"Path to profile folder (default: {profile_path})",