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GitPython/fuzzing/fuzz-targets/fuzz_submodule.py at 3.2.1 · gitpython-developers/GitPython · GitHub
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GitPython
/
fuzzing
/
fuzz-targets
/
fuzz_submodule.py
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GitPython
/
fuzzing
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fuzz-targets
/
fuzz_submodule.py
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import
atheris
import
sys
import
os
import
tempfile
from
configparser
import
ParsingError
from
utils
import
(
setup_git_environment
,
handle_exception
,
get_max_filename_length
,
)
# Setup the Git environment
setup_git_environment
()
from
git
import
Repo
,
GitCommandError
,
InvalidGitRepositoryError
def
sanitize_input
(
input_str
,
max_length
=
255
):
"""Sanitize and truncate inputs to avoid invalid Git operations."""
sanitized
=
""
.
join
(
ch
for
ch
in
input_str
if
ch
.
isalnum
()
or
ch
in
(
"-"
,
"_"
,
"."
))
return
sanitized
[:
max_length
]
def
TestOneInput
(
data
):
fdp
=
atheris
.
FuzzedDataProvider
(
data
)
with
tempfile
.
TemporaryDirectory
()
as
repo_temp_dir
:
repo
=
Repo
.
init
(
path
=
repo_temp_dir
)
repo
.
index
.
commit
(
"Initial commit"
)
try
:
with
tempfile
.
TemporaryDirectory
()
as
submodule_temp_dir
:
sub_repo
=
Repo
.
init
(
submodule_temp_dir
,
bare
=
fdp
.
ConsumeBool
())
commit_message
=
sanitize_input
(
fdp
.
ConsumeUnicodeNoSurrogates
(
fdp
.
ConsumeIntInRange
(
1
,
512
)))
sub_repo
.
index
.
commit
(
commit_message
)
submodule_name
=
sanitize_input
(
fdp
.
ConsumeUnicodeNoSurrogates
(
fdp
.
ConsumeIntInRange
(
1
,
get_max_filename_length
(
repo
.
working_tree_dir
))
)
)
submodule_path
=
os
.
path
.
relpath
(
os
.
path
.
join
(
repo
.
working_tree_dir
,
submodule_name
),
start
=
repo
.
working_tree_dir
,
)
# Ensure submodule_path is valid
if
not
submodule_name
or
submodule_name
.
startswith
(
"/"
)
or
".."
in
submodule_name
:
return
-
1
# Reject invalid input so they are not added to the corpus
submodule
=
repo
.
create_submodule
(
submodule_name
,
submodule_path
,
url
=
sub_repo
.
git_dir
)
repo
.
index
.
commit
(
"Added submodule"
)
with
submodule
.
config_writer
()
as
writer
:
key_length
=
fdp
.
ConsumeIntInRange
(
1
,
max
(
1
,
fdp
.
remaining_bytes
()))
value_length
=
fdp
.
ConsumeIntInRange
(
1
,
max
(
1
,
fdp
.
remaining_bytes
()))
writer
.
set_value
(
sanitize_input
(
fdp
.
ConsumeUnicodeNoSurrogates
(
key_length
)),
sanitize_input
(
fdp
.
ConsumeUnicodeNoSurrogates
(
value_length
)),
)
writer
.
release
()
submodule
.
update
(
init
=
fdp
.
ConsumeBool
(),
dry_run
=
fdp
.
ConsumeBool
(),
force
=
fdp
.
ConsumeBool
(),
)
submodule_repo
=
submodule
.
module
()
new_file_name
=
sanitize_input
(
fdp
.
ConsumeUnicodeNoSurrogates
(
fdp
.
ConsumeIntInRange
(
1
,
get_max_filename_length
(
submodule_repo
.
working_tree_dir
))
)
)
new_file_path
=
os
.
path
.
join
(
submodule_repo
.
working_tree_dir
,
new_file_name
)
with
open
(
new_file_path
,
"wb"
)
as
new_file
:
new_file
.
write
(
fdp
.
ConsumeBytes
(
fdp
.
ConsumeIntInRange
(
1
,
512
)))
submodule_repo
.
index
.
add
([
new_file_path
])
submodule_repo
.
index
.
commit
(
"Added new file to submodule"
)
repo
.
submodule_update
(
recursive
=
fdp
.
ConsumeBool
())
submodule_repo
.
head
.
reset
(
commit
=
"HEAD~1"
,
working_tree
=
fdp
.
ConsumeBool
(),
head
=
fdp
.
ConsumeBool
(),
)
module_option_value
,
configuration_option_value
=
fdp
.
PickValueInList
(
[(
True
,
False
), (
False
,
True
), (
True
,
True
)]
)
submodule
.
remove
(
module
=
module_option_value
,
configuration
=
configuration_option_value
,
dry_run
=
fdp
.
ConsumeBool
(),
force
=
fdp
.
ConsumeBool
(),
)
repo
.
index
.
commit
(
f"Removed submodule
{
submodule_name
}
"
)
except
(
ParsingError
,
GitCommandError
,
InvalidGitRepositoryError
,
FileNotFoundError
,
FileExistsError
,
IsADirectoryError
,
NotADirectoryError
,
BrokenPipeError
,
PermissionError
,
):
return
-
1
except
Exception
as
e
:
return
handle_exception
(
e
)
def
main
():
atheris
.
instrument_all
()
atheris
.
Setup
(
sys
.
argv
,
TestOneInput
)
atheris
.
Fuzz
()
if
__name__
==
"__main__"
:
main
()
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