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Clean up and document clean_email code path.

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This commit is contained in:
Tim Abbott
2016-07-26 17:39:14 -07:00
parent 375551aaa6
commit ed6c134cf4
1 changed files with 33 additions and 9 deletions
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42
zerver/forms.py
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@@ -41,16 +41,18 @@ def get_registration_string(domain):
'Please register your account <a href=%(url)s>here</a>.') % {'url': register_url}
return register_account_string
def has_valid_realm(value):
# type: (str) -> bool
# Checks if there is a realm without invite_required
# matching the domain of the input e-mail.
def get_valid_realm(value):
# type: (str) -> Optional[Realm]
"""Checks if there is a realm without invite_required
matching the domain of the input e-mail."""
realm = get_realm(resolve_email_to_domain(value))
return realm is not None and not realm.invite_required
if realm is None or realm.invite_required:
return None
return realm
def not_mit_mailing_list(value):
# type: (str) -> bool
# I don't want ec-discuss signed up for Zulip
"""Prevent MIT mailing lists from signing up for Zulip"""
if "@mit.edu" in value:
username = value.rsplit("@", 1)[0]
# Check whether the user exists and can get mail.
@@ -94,11 +96,33 @@ class HomepageForm(forms.Form):
def clean_email(self):
# type: () -> str
"""Returns the email if and only if the user's email address is
allowed to join the realm they are trying to join."""
data = self.cleaned_data['email']
if (get_unique_open_realm() or
completely_open(self.domain) or
(has_valid_realm(data) and not_mit_mailing_list(data))):
# If the server has a unique open realm, pass
if get_unique_open_realm():
return data
# If a realm is specified and that realm is open, pass
if completely_open(self.domain):
return data
# If no realm is specified, fail
realm = get_valid_realm(data)
if realm is None:
raise ValidationError(mark_safe(SIGNUP_STRING))
# If it's a clear realm not used for Zephyr mirroring, pass
if not realm.is_zephyr_mirror_realm:
return data
# At this point, the user is trying to join a Zephyr mirroring
# realm. We confirm that they are a real account (not a
# mailing list), and if so, let them in.
if not_mit_mailing_list(data):
return data
# Otherwise, the user is an MIT mailing list, and we return failure
raise ValidationError(mark_safe(SIGNUP_STRING))
class RealmCreationForm(forms.Form):