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add uri salt when creating ABID

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Nick Sweeting 2024-08-17 19:30:58 -07:00
parent fbb58c51a7
commit b7745ae37a
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1 changed files with 9 additions and 4 deletions
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13
archivebox/abid_utils/abid.py
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@ -21,6 +21,11 @@ ABID_RAND_LEN = 6
DEFAULT_ABID_PREFIX = 'obj_'
# allows people to keep their uris secret on a per-instance basis by changing the salt.
# the default means everyone can share the same namespace for URI hashes,
# meaning anyone who has a URI and wants to check if you have it can guess the ABID
DEFAULT_ABID_URI_SALT = '687c2fff14e3a7780faa5a40c237b19b5b51b089'
class ABID(NamedTuple):
"""
@ -97,7 +102,7 @@ class ABID(NamedTuple):
####################################################
def uri_hash(uri: Union[str, bytes]) -> str:
def uri_hash(uri: Union[str, bytes], salt: str=DEFAULT_ABID_URI_SALT) -> str:
"""
'E4A5CCD9AF4ED2A6E0954DF19FD274E9CDDB4853051F033FD518BFC90AA1AC25'
"""
@ -115,7 +120,7 @@ def uri_hash(uri: Union[str, bytes]) -> str:
except AttributeError:
pass
uri_bytes = uri_str.encode('utf-8')
uri_bytes = uri_str.encode('utf-8') + salt.encode('utf-8')
return hashlib.sha256(uri_bytes).hexdigest().upper()
@ -130,12 +135,12 @@ def abid_part_from_prefix(prefix: Optional[str]) -> str:
assert len(prefix) == 3
return prefix + '_'
def abid_part_from_uri(uri: str) -> str:
def abid_part_from_uri(uri: str, salt: str=DEFAULT_ABID_URI_SALT) -> str:
"""
'E4A5CCD9' # takes first 8 characters of sha256(url)
"""
uri = str(uri)
return uri_hash(uri)[:ABID_URI_LEN]
return uri_hash(uri, salt=salt)[:ABID_URI_LEN]
def abid_part_from_ts(ts: Optional[datetime]) -> str:
"""