mirror of https://github.com/zulip/zulip.git
221 lines
9.5 KiB
Python
221 lines
9.5 KiB
Python
from __future__ import absolute_import
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from django import forms
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from django.conf import settings
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from django.contrib.auth.forms import SetPasswordForm, AuthenticationForm, \
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PasswordResetForm
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from django.core.exceptions import ValidationError
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from django.core.urlresolvers import reverse
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from django.db.models.query import QuerySet
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from django.utils.translation import ugettext as _
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from jinja2 import Markup as mark_safe
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from zerver.lib.actions import do_change_password, is_inactive, user_email_is_unique
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from zerver.lib.name_restrictions import is_reserved_subdomain, is_disposable_domain
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from zerver.lib.utils import get_subdomain, check_subdomain
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from zerver.models import Realm, get_user_profile_by_email, UserProfile, \
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completely_open, get_realm, get_realm_by_email_domain, get_realm_by_string_id, \
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get_unique_open_realm, email_to_domain, email_allowed_for_realm
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from zproject.backends import password_auth_enabled
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import logging
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import re
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import DNS
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from six import text_type
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from typing import Any, Callable, Optional
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MIT_VALIDATION_ERROR = u'That user does not exist at MIT or is a ' + \
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u'<a href="https://ist.mit.edu/email-lists">mailing list</a>. ' + \
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u'If you want to sign up an alias for Zulip, ' + \
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u'<a href="mailto:support@zulipchat.com">contact us</a>.'
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WRONG_SUBDOMAIN_ERROR = "Your Zulip account is not a member of the " + \
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"organization associated with this subdomain. " + \
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"Please contact %s with any questions!" % (settings.ZULIP_ADMINISTRATOR,)
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def get_registration_string(domain):
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# type: (text_type) -> text_type
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register_url = reverse('register') + domain
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register_account_string = _('The organization with the domain already exists. '
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'Please register your account <a href=%(url)s>here</a>.') % {'url': register_url}
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return register_account_string
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def email_is_not_mit_mailing_list(email):
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# type: (text_type) -> None
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"""Prevent MIT mailing lists from signing up for Zulip"""
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if "@mit.edu" in email:
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username = email.rsplit("@", 1)[0]
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# Check whether the user exists and can get mail.
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try:
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DNS.dnslookup("%s.pobox.ns.athena.mit.edu" % username, DNS.Type.TXT)
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except DNS.Base.ServerError as e:
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if e.rcode == DNS.Status.NXDOMAIN:
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raise ValidationError(mark_safe(MIT_VALIDATION_ERROR))
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else:
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raise
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class RegistrationForm(forms.Form):
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full_name = forms.CharField(max_length=100)
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# The required-ness of the password field gets overridden if it isn't
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# actually required for a realm
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password = forms.CharField(widget=forms.PasswordInput, max_length=100,
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required=False)
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realm_name = forms.CharField(max_length=100, required=False)
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realm_subdomain = forms.CharField(max_length=40, required=False)
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realm_org_type = forms.ChoiceField(((Realm.COMMUNITY, 'Community'),
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(Realm.CORPORATE, 'Corporate')),
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initial=Realm.COMMUNITY, required=False)
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if settings.TERMS_OF_SERVICE:
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terms = forms.BooleanField(required=True)
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def clean_realm_subdomain(self):
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# type: () -> str
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if settings.REALMS_HAVE_SUBDOMAINS:
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error_strings = {
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'too short': _("Subdomain needs to have length 3 or greater."),
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'extremal dash': _("Subdomain cannot start or end with a '-'."),
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'bad character': _("Subdomain can only have lowercase letters, numbers, and '-'s."),
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'unavailable': _("Subdomain unavailable. Please choose a different one.")}
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else:
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error_strings = {
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'too short': _("Short name needs at least 3 characters."),
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'extremal dash': _("Short name cannot start or end with a '-'."),
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'bad character': _("Short name can only have lowercase letters, numbers, and '-'s."),
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'unavailable': _("Short name unavailable. Please choose a different one.")}
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subdomain = self.cleaned_data['realm_subdomain']
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if not subdomain:
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return ''
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if len(subdomain) < 3:
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raise ValidationError(error_strings['too short'])
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if subdomain[0] == '-' or subdomain[-1] == '-':
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raise ValidationError(error_strings['extremal dash'])
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if not re.match('^[a-z0-9-]*$', subdomain):
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raise ValidationError(error_strings['bad character'])
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if is_reserved_subdomain(subdomain) or \
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get_realm_by_string_id(subdomain) is not None:
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raise ValidationError(error_strings['unavailable'])
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return subdomain
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class ToSForm(forms.Form):
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terms = forms.BooleanField(required=True)
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class HomepageForm(forms.Form):
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# This form is important because it determines whether users can
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# register for our product. Be careful when modifying the
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# validators.
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email = forms.EmailField(validators=[is_inactive])
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def __init__(self, *args, **kwargs):
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# type: (*Any, **Any) -> None
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self.string_id = kwargs.get("string_id")
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if "string_id" in kwargs:
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del kwargs["string_id"]
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super(HomepageForm, self).__init__(*args, **kwargs)
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def clean_email(self):
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# type: () -> str
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"""Returns the email if and only if the user's email address is
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allowed to join the realm they are trying to join."""
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email = self.cleaned_data['email']
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if get_unique_open_realm():
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return email
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# Otherwise, the user is trying to join a specific realm.
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realm = None
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if self.string_id:
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realm = get_realm_by_string_id(self.string_id)
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elif not settings.REALMS_HAVE_SUBDOMAINS:
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realm = get_realm_by_email_domain(email)
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if realm is None:
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if settings.REALMS_HAVE_SUBDOMAINS:
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raise ValidationError(_("The organization you are trying to join does not exist."))
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else:
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raise ValidationError(_("Your email address does not correspond to any existing organization."))
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if realm.invite_required:
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raise ValidationError(_("Please request an invite from the organization administrator."))
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if not email_allowed_for_realm(email, realm):
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raise ValidationError(
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_("The organization you are trying to join, %(string_id)s, only allows users with e-mail "
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"addresses within the organization. Please try a different e-mail address."
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% {'string_id': realm.string_id}))
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if realm.is_zephyr_mirror_realm:
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email_is_not_mit_mailing_list(email)
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return email
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def email_is_not_disposable(email):
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# type: (text_type) -> None
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if is_disposable_domain(email_to_domain(email)):
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raise ValidationError(_("Please use your real email address."))
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class RealmCreationForm(forms.Form):
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# This form determines whether users can
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# create a new realm. Be careful when modifying the
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# validators.
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email = forms.EmailField(validators=[user_email_is_unique, email_is_not_disposable])
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def __init__(self, *args, **kwargs):
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# type: (*Any, **Any) -> None
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self.domain = kwargs.get("domain")
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if "domain" in kwargs:
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del kwargs["domain"]
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super(RealmCreationForm, self).__init__(*args, **kwargs)
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class LoggingSetPasswordForm(SetPasswordForm):
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def save(self, commit=True):
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# type: (bool) -> UserProfile
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do_change_password(self.user, self.cleaned_data['new_password1'],
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log=True, commit=commit)
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return self.user
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class ZulipPasswordResetForm(PasswordResetForm):
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def get_users(self, email):
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# type: (str) -> QuerySet
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"""Given an email, return matching user(s) who should receive a reset.
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This is modified from the original in that it allows non-bot
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users who don't have a usable password to reset their
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passwords.
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"""
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if not password_auth_enabled:
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logging.info("Password reset attempted for %s even though password auth is disabled." % (email,))
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return []
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result = UserProfile.objects.filter(email__iexact=email, is_active=True,
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is_bot=False)
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if len(result) == 0:
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logging.info("Password reset attempted for %s; no active account." % (email,))
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return result
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class CreateUserForm(forms.Form):
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full_name = forms.CharField(max_length=100)
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email = forms.EmailField()
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class OurAuthenticationForm(AuthenticationForm):
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def clean_username(self):
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# type: () -> str
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email = self.cleaned_data['username']
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try:
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user_profile = get_user_profile_by_email(email)
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except UserProfile.DoesNotExist:
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return email
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if user_profile.realm.deactivated:
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error_msg = u"""Sorry for the trouble, but %s has been deactivated.
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Please contact %s to reactivate this group.""" % (
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user_profile.realm.name,
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settings.ZULIP_ADMINISTRATOR)
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raise ValidationError(mark_safe(error_msg))
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if not check_subdomain(get_subdomain(self.request), user_profile.realm.subdomain):
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logging.warning("User %s attempted to password login to wrong subdomain %s" %
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(user_profile.email, get_subdomain(self.request)))
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raise ValidationError(mark_safe(WRONG_SUBDOMAIN_ERROR))
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return email
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