zulip/zephyr/lib/avatar.py

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from __future__ import absolute_import
import hashlib
from zephyr.lib.utils import make_safe_digest
def gravatar_hash(email):
"""Compute the Gravatar hash for an email address."""
# Non-ASCII characters aren't permitted by the currently active e-mail
# RFCs. However, the IETF has published https://tools.ietf.org/html/rfc4952,
# outlining internationalization of email addresses, and regardless if we
# typo an address or someone manages to give us a non-ASCII address, let's
# not error out on it.
return make_safe_digest(email.lower(), hashlib.md5)