54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
from django.conf import settings
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from django.utils.http import urlencode
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from django.utils.translation import gettext_lazy as _
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from wagtail.compat import AUTH_USER_APP_LABEL, AUTH_USER_MODEL_NAME
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from wagtail.coreutils import safe_md5
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delete_user_perm = "{}.delete_{}".format(
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AUTH_USER_APP_LABEL, AUTH_USER_MODEL_NAME.lower()
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)
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def user_can_delete_user(current_user, user_to_delete):
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if not current_user.has_perm(delete_user_perm):
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return False
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if current_user == user_to_delete:
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# users may not delete themselves
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return False
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if user_to_delete.is_superuser and not current_user.is_superuser:
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# ordinary users may not delete superusers
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return False
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return True
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def get_gravatar_url(email, size=50):
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default = "mm"
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size = (
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int(size) * 2
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) # requested at retina size by default and scaled down at point of use with css
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gravatar_provider_url = getattr(
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settings, "WAGTAIL_GRAVATAR_PROVIDER_URL", "//www.gravatar.com/avatar"
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)
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if (not email) or (gravatar_provider_url is None):
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return None
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email_bytes = email.lower().encode("utf-8")
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hash = safe_md5(email_bytes, usedforsecurity=False).hexdigest()
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gravatar_url = "{gravatar_provider_url}/{hash}?{params}".format(
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gravatar_provider_url=gravatar_provider_url.rstrip("/"),
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hash=hash,
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params=urlencode({"s": size, "d": default}),
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)
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return gravatar_url
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def get_deleted_user_display_name(user_id):
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# Use a string placeholder as the user id could be non-numeric
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return _("user %(id)s (deleted)") % {"id": user_id}
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