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Commitd1297f6

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Merge pull request#1198 from RyaxTech/replace-password-in-uri-by-stars
Replace password in URI by stars if present to avoid leaking secrets in logs
2 parentsd906f31 +d283c83 commitd1297f6

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5 files changed

+81
-14
lines changed

5 files changed

+81
-14
lines changed

‎git/cmd.py‎

Lines changed: 13 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -29,7 +29,7 @@
2929
is_win,
3030
)
3131
fromgit.excimportCommandError
32-
fromgit.utilimportis_cygwin_git,cygpath,expand_path
32+
fromgit.utilimportis_cygwin_git,cygpath,expand_path,remove_password_if_present
3333

3434
from .excimport (
3535
GitCommandError,
@@ -83,8 +83,8 @@ def pump_stream(cmdline, name, stream, is_decode, handler):
8383
line=line.decode(defenc)
8484
handler(line)
8585
exceptExceptionasex:
86-
log.error("Pumping %r of cmd(%s) failed due to: %r",name,cmdline,ex)
87-
raiseCommandError(['<%s-pump>'%name]+cmdline,ex)fromex
86+
log.error("Pumping %r of cmd(%s) failed due to: %r",name,remove_password_if_present(cmdline),ex)
87+
raiseCommandError(['<%s-pump>'%name]+remove_password_if_present(cmdline),ex)fromex
8888
finally:
8989
stream.close()
9090

@@ -406,7 +406,7 @@ def read_all_from_possibly_closed_stream(stream):
406406
ifstatus!=0:
407407
errstr=read_all_from_possibly_closed_stream(self.proc.stderr)
408408
log.debug('AutoInterrupt wait stderr: %r'% (errstr,))
409-
raiseGitCommandError(self.args,status,errstr)
409+
raiseGitCommandError(remove_password_if_present(self.args),status,errstr)
410410
# END status handling
411411
returnstatus
412412
# END auto interrupt
@@ -683,8 +683,10 @@ def execute(self, command,
683683
:note:
684684
If you add additional keyword arguments to the signature of this method,
685685
you must update the execute_kwargs tuple housed in this module."""
686+
# Remove password for the command if present
687+
redacted_command=remove_password_if_present(command)
686688
ifself.GIT_PYTHON_TRACEand (self.GIT_PYTHON_TRACE!='full'oras_process):
687-
log.info(' '.join(command))
689+
log.info(' '.join(redacted_command))
688690

689691
# Allow the user to have the command executed in their working dir.
690692
cwd=self._working_diroros.getcwd()
@@ -705,7 +707,7 @@ def execute(self, command,
705707
ifis_win:
706708
cmd_not_found_exception=OSError
707709
ifkill_after_timeout:
708-
raiseGitCommandError(command,'"kill_after_timeout" feature is not supported on Windows.')
710+
raiseGitCommandError(redacted_command,'"kill_after_timeout" feature is not supported on Windows.')
709711
else:
710712
ifsys.version_info[0]>2:
711713
cmd_not_found_exception=FileNotFoundError# NOQA # exists, flake8 unknown @UndefinedVariable
@@ -720,7 +722,7 @@ def execute(self, command,
720722
ifistream:
721723
istream_ok="<valid stream>"
722724
log.debug("Popen(%s, cwd=%s, universal_newlines=%s, shell=%s, istream=%s)",
723-
command,cwd,universal_newlines,shell,istream_ok)
725+
redacted_command,cwd,universal_newlines,shell,istream_ok)
724726
try:
725727
proc=Popen(command,
726728
env=env,
@@ -736,7 +738,7 @@ def execute(self, command,
736738
**subprocess_kwargs
737739
)
738740
exceptcmd_not_found_exceptionaserr:
739-
raiseGitCommandNotFound(command,err)fromerr
741+
raiseGitCommandNotFound(redacted_command,err)fromerr
740742

741743
ifas_process:
742744
returnself.AutoInterrupt(proc,command)
@@ -786,7 +788,7 @@ def _kill_process(pid):
786788
watchdog.cancel()
787789
ifkill_check.isSet():
788790
stderr_value= ('Timeout: the command "%s" did not complete in %d '
789-
'secs.'% (" ".join(command),kill_after_timeout))
791+
'secs.'% (" ".join(redacted_command),kill_after_timeout))
790792
ifnotuniversal_newlines:
791793
stderr_value=stderr_value.encode(defenc)
792794
# strip trailing "\n"
@@ -810,7 +812,7 @@ def _kill_process(pid):
810812
proc.stderr.close()
811813

812814
ifself.GIT_PYTHON_TRACE=='full':
813-
cmdstr=" ".join(command)
815+
cmdstr=" ".join(redacted_command)
814816

815817
defas_text(stdout_value):
816818
returnnotoutput_streamandsafe_decode(stdout_value)or'<OUTPUT_STREAM>'
@@ -826,7 +828,7 @@ def as_text(stdout_value):
826828
# END handle debug printing
827829

828830
ifwith_exceptionsandstatus!=0:
829-
raiseGitCommandError(command,status,stderr_value,stdout_value)
831+
raiseGitCommandError(redacted_command,status,stderr_value,stdout_value)
830832

831833
ifisinstance(stdout_value,bytes)andstdout_as_string:# could also be output_stream
832834
stdout_value=safe_decode(stdout_value)

‎git/repo/base.py‎

Lines changed: 5 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -25,7 +25,7 @@
2525
fromgit.objectsimportSubmodule,RootModule,Commit
2626
fromgit.refsimportHEAD,Head,Reference,TagReference
2727
fromgit.remoteimportRemote,add_progress,to_progress_instance
28-
fromgit.utilimportActor,finalize_process,decygpath,hex_to_bin,expand_path
28+
fromgit.utilimportActor,finalize_process,decygpath,hex_to_bin,expand_path,remove_password_if_present
2929
importos.pathasosp
3030

3131
from .funimportrev_parse,is_git_dir,find_submodule_git_dir,touch,find_worktree_git_dir
@@ -1018,7 +1018,10 @@ def _clone(cls, git: 'Git', url: PathLike, path: PathLike, odb_default_type: Typ
10181018
finalize_process,decode_streams=False)
10191019
else:
10201020
(stdout,stderr)=proc.communicate()
1021-
log.debug("Cmd(%s)'s unused stdout: %s",getattr(proc,'args',''),stdout)
1021+
cmdline=getattr(proc,'args','')
1022+
cmdline=remove_password_if_present(cmdline)
1023+
1024+
log.debug("Cmd(%s)'s unused stdout: %s",cmdline,stdout)
10221025
finalize_process(proc,stderr=stderr)
10231026

10241027
# our git command could have a different working dir than our actual

‎git/util.py‎

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,7 @@
1717
fromsysimportmaxsize
1818
importtime
1919
fromunittestimportSkipTest
20+
fromurllib.parseimporturlsplit,urlunsplit
2021

2122
# typing ---------------------------------------------------------
2223

@@ -362,6 +363,34 @@ def expand_path(p: PathLike, expand_vars: bool = True) -> Optional[PathLike]:
362363
exceptException:
363364
returnNone
364365

366+
367+
defremove_password_if_present(cmdline):
368+
"""
369+
Parse any command line argument and if on of the element is an URL with a
370+
password, replace it by stars (in-place).
371+
372+
If nothing found just returns the command line as-is.
373+
374+
This should be used for every log line that print a command line.
375+
"""
376+
new_cmdline= []
377+
forindex,to_parseinenumerate(cmdline):
378+
new_cmdline.append(to_parse)
379+
try:
380+
url=urlsplit(to_parse)
381+
# Remove password from the URL if present
382+
ifurl.passwordisNone:
383+
continue
384+
385+
edited_url=url._replace(
386+
netloc=url.netloc.replace(url.password,"*****"))
387+
new_cmdline[index]=urlunsplit(edited_url)
388+
exceptValueError:
389+
# This is not a valid URL
390+
continue
391+
returnnew_cmdline
392+
393+
365394
#} END utilities
366395

367396
#{ Classes

‎test/test_repo.py‎

Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -238,6 +238,21 @@ def test_clone_from_with_path_contains_unicode(self):
238238
exceptUnicodeEncodeError:
239239
self.fail('Raised UnicodeEncodeError')
240240

241+
@with_rw_directory
242+
deftest_leaking_password_in_clone_logs(self,rw_dir):
243+
password="fakepassword1234"
244+
try:
245+
Repo.clone_from(
246+
url="https://fakeuser:{}@fakerepo.example.com/testrepo".format(
247+
password),
248+
to_path=rw_dir)
249+
exceptGitCommandErroraserr:
250+
assertpasswordnotinstr(err),"The error message '%s' should not contain the password"%err
251+
# Working example from a blank private project
252+
Repo.clone_from(
253+
url="https://gitlab+deploy-token-392045:mLWhVus7bjLsy8xj8q2V@gitlab.com/mercierm/test_git_python",
254+
to_path=rw_dir)
255+
241256
@with_rw_repo('HEAD')
242257
deftest_max_chunk_size(self,repo):
243258
classTestOutputStream(TestBase):

‎test/test_util.py‎

Lines changed: 19 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -30,7 +30,8 @@
3030
Actor,
3131
IterableList,
3232
cygpath,
33-
decygpath
33+
decygpath,
34+
remove_password_if_present,
3435
)
3536

3637

@@ -322,3 +323,20 @@ def test_pickle_tzoffset(self):
322323
t2=pickle.loads(pickle.dumps(t1))
323324
self.assertEqual(t1._offset,t2._offset)
324325
self.assertEqual(t1._name,t2._name)
326+
327+
deftest_remove_password_from_command_line(self):
328+
password="fakepassword1234"
329+
url_with_pass="https://fakeuser:{}@fakerepo.example.com/testrepo".format(password)
330+
url_without_pass="https://fakerepo.example.com/testrepo"
331+
332+
cmd_1= ["git","clone","-v",url_with_pass]
333+
cmd_2= ["git","clone","-v",url_without_pass]
334+
cmd_3= ["no","url","in","this","one"]
335+
336+
redacted_cmd_1=remove_password_if_present(cmd_1)
337+
assertpasswordnotin" ".join(redacted_cmd_1)
338+
# Check that we use a copy
339+
assertcmd_1isnotredacted_cmd_1
340+
assertpasswordin" ".join(cmd_1)
341+
assertcmd_2==remove_password_if_present(cmd_2)
342+
assertcmd_3==remove_password_if_present(cmd_3)

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