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https://github.com/GNS3/gns3-server
synced 2024-11-24 09:18:08 +00:00
Do not use the md5 from cache for a missing image
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parent
4aadfa3b67
commit
a8e69d9a0b
@ -27,7 +27,7 @@ def md5sum(path):
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:returns: Digest of the image
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"""
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if path is None or len(path) == 0:
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if path is None or len(path) == 0 or not os.path.exists(path):
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return None
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try:
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@ -36,14 +36,18 @@ def md5sum(path):
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except OSError:
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pass
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m = hashlib.md5()
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with open(path, 'rb') as f:
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while True:
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buf = f.read(128)
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if not buf:
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break
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m.update(buf)
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digest = m.hexdigest()
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try:
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m = hashlib.md5()
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with open(path, 'rb') as f:
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while True:
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buf = f.read(128)
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if not buf:
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break
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m.update(buf)
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digest = m.hexdigest()
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except OSError as e:
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log.error("Can't create digest of %s: %s", path, str(e))
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return None
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try:
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with open('{}.md5sum'.format(path), 'w+') as f:
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@ -34,12 +34,24 @@ def test_md5sum(tmpdir):
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def test_md5sum_existing_digest(tmpdir):
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fake_img = str(tmpdir / 'hello')
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with open(fake_img, 'w+') as f:
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f.write('hello')
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with open(str(tmpdir / 'hello.md5sum'), 'w+') as f:
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f.write('aaaaa02abc4b2a76b9719d911017c592')
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assert md5sum(fake_img) == 'aaaaa02abc4b2a76b9719d911017c592'
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def test_md5sum_existing_digest_but_missing_image(tmpdir):
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fake_img = str(tmpdir / 'hello')
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with open(str(tmpdir / 'hello.md5sum'), 'w+') as f:
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f.write('aaaaa02abc4b2a76b9719d911017c592')
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assert md5sum(fake_img) is None
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def test_md5sum_none(tmpdir):
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assert md5sum(None) is None
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