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365fe0b3d5
Fixes #2665. Regenerated by tabbott with `lint --fix` after a rebase and change in parameters. Note from tabbott: In a few cases, this converts technical debt in the form of unsorted imports into different technical debt in the form of our largest files having very long, ugly import sequences at the start. I expect this change will increase pressure for us to split those files, which isn't a bad thing. Signed-off-by: Anders Kaseorg <anders@zulip.com>
41 lines
1.7 KiB
Python
41 lines
1.7 KiB
Python
import hashlib
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from django.conf import settings
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from zerver.lib.utils import make_safe_digest
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from zerver.models import UserProfile
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def gravatar_hash(email: str) -> str:
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"""Compute the Gravatar hash for an email address."""
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# Non-ASCII characters aren't permitted by the currently active e-mail
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# RFCs. However, the IETF has published https://tools.ietf.org/html/rfc4952,
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# outlining internationalization of email addresses, and regardless if we
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# typo an address or someone manages to give us a non-ASCII address, let's
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# not error out on it.
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return make_safe_digest(email.lower(), hashlib.md5)
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def user_avatar_hash(uid: str) -> str:
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# WARNING: If this method is changed, you may need to do a migration
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# similar to zerver/migrations/0060_move_avatars_to_be_uid_based.py .
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# The salt probably doesn't serve any purpose now. In the past we
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# used a hash of the email address, not the user ID, and we salted
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# it in order to make the hashing scheme different from Gravatar's.
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user_key = uid + settings.AVATAR_SALT
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return make_safe_digest(user_key, hashlib.sha1)
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def user_avatar_path(user_profile: UserProfile) -> str:
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# WARNING: If this method is changed, you may need to do a migration
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# similar to zerver/migrations/0060_move_avatars_to_be_uid_based.py .
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return user_avatar_path_from_ids(user_profile.id, user_profile.realm_id)
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def user_avatar_path_from_ids(user_profile_id: int, realm_id: int) -> str:
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user_id_hash = user_avatar_hash(str(user_profile_id))
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return f'{str(realm_id)}/{user_id_hash}'
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def user_avatar_content_hash(ldap_avatar: bytes) -> str:
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return hashlib.sha256(ldap_avatar).hexdigest()
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