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avoid overwriting another user's database

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Should fix issue #39
This commit is contained in:
Joel Schaerer 2011-03-30 20:03:38 +02:00
parent 36daeb1e32
commit 1bc3440968
1 changed files with 19 additions and 16 deletions
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@ -49,6 +49,9 @@ def dicadd(dic, key, increment=1):
def save(path_dict, dic_file): def save(path_dict, dic_file):
"""Save the database in an atomic way, and preserve """Save the database in an atomic way, and preserve
a backup file.""" a backup file."""
# If the dic_file exists, check that it belongs to us
# Otherwise, fail quietly
if (not os.path.exists(dic_file)) or os.getuid() == os.stat(dic_file)[4]:
temp = NamedTemporaryFile(dir=CONFIG_DIR, delete=False) temp = NamedTemporaryFile(dir=CONFIG_DIR, delete=False)
pickle.dump(path_dict, temp, -1) pickle.dump(path_dict, temp, -1)
temp.flush() temp.flush()