mirror of
https://github.com/jwinterm/modoboa.git
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275 lines
9.9 KiB
Python
275 lines
9.9 KiB
Python
# coding: utf-8
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from django import forms
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from django.conf import settings
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from django.utils.translation import ugettext as _, ugettext_lazy
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from modoboa.lib.formutils import YesNoField, SeparatorField, InlineRadioSelect
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from modoboa.lib.cryptutils import random_key
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from modoboa.lib import parameters
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def enabled_applications():
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"""Return the list of currently enabled extensions
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We check if the table exists before trying to fetch activated
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extensions because the admin module is always imported by Django,
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even before the database exists (example: the first ``syncdb``).
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:return: a list
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"""
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from modoboa.core.models import Extension
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from modoboa.lib.dbutils import db_table_exists
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result = [("core", "core")]
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if db_table_exists("core_extension"):
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exts = Extension.objects.filter(enabled=True)
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result += [(ext.name, ext.name) for ext in exts]
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return sorted(result, key=lambda e: e[0])
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class GeneralParametersForm(parameters.AdminParametersForm):
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app = "core"
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sep1 = SeparatorField(label=ugettext_lazy("Authentication"))
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authentication_type = forms.ChoiceField(
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label=ugettext_lazy("Authentication type"),
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choices=[('local', ugettext_lazy("Local")),
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('ldap', "LDAP")],
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initial="local",
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help_text=ugettext_lazy("The backend used for authentication"),
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widget=InlineRadioSelect
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)
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password_scheme = forms.ChoiceField(
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label=ugettext_lazy("Default password scheme"),
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choices=[("crypt", "crypt"),
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("md5", "md5"),
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("md5crypt", "md5crypt"),
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("sha256", "sha256"),
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("plain", "plain")],
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initial="md5crypt",
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help_text=ugettext_lazy("Scheme used to crypt mailbox passwords")
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)
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secret_key = forms.CharField(
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label=ugettext_lazy("Secret key"),
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initial=random_key(),
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help_text=ugettext_lazy("Key used to encrypt/decrypt passwords")
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)
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# LDAP specific settings
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ldap_sep = SeparatorField(label=ugettext_lazy("LDAP settings"))
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ldap_server_address = forms.CharField(
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label=ugettext_lazy("Server address"),
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initial="localhost",
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help_text=ugettext_lazy("The IP address of the DNS name of the LDAP server")
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)
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ldap_server_port = forms.IntegerField(
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label=ugettext_lazy("Server port"),
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initial=389,
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help_text=ugettext_lazy("The TCP port number used by the LDAP server")
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)
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ldap_secured = YesNoField(
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label=ugettext_lazy("Use a secured connection"),
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initial="no",
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help_text=ugettext_lazy("Use an SSL/TLS connection to access the LDAP server")
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)
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ldap_auth_method = forms.ChoiceField(
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label=ugettext_lazy("Authentication method"),
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choices=[('searchbind', ugettext_lazy("Search and bind")),
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('directbind', ugettext_lazy("Direct bind"))],
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initial='searchbind',
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help_text=ugettext_lazy("Choose the authentication method to use"),
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widget=InlineRadioSelect
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)
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ldap_bind_dn = forms.CharField(
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label=ugettext_lazy("Bind DN"),
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initial='',
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help_text=ugettext_lazy("The distinguished name to use when binding to the LDAP server. Leave empty for an anonymous bind"),
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required=False
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)
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ldap_bind_password = forms.CharField(
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label=ugettext_lazy("Bind password"),
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initial='',
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help_text=ugettext_lazy("The password to use when binding to the LDAP server (with 'Bind DN')"),
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widget=forms.PasswordInput,
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required=False
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)
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ldap_search_base = forms.CharField(
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label=ugettext_lazy("Search base"),
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initial="",
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help_text=ugettext_lazy("The distinguished name of the search base"),
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required=False
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)
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ldap_search_filter = forms.CharField(
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label=ugettext_lazy("Search filter"),
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initial="(mail=%(user)s)",
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help_text=ugettext_lazy("An optional filter string (e.g. '(objectClass=person)'). In order to be valid, it must be enclosed in parentheses."),
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required=False
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)
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ldap_user_dn_template = forms.CharField(
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label=ugettext_lazy("User DN template"),
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initial="",
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help_text=ugettext_lazy("The template used to construct a user's DN. It should contain one placeholder (ie. %(user)s)"),
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required=False
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)
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ldap_password_attribute = forms.CharField(
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label=ugettext_lazy("Password attribute"),
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initial="userPassword",
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help_text=ugettext_lazy("The attribute used to store user passwords")
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)
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ldap_is_active_directory = YesNoField(
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label=ugettext_lazy("Active Directory"),
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initial="no",
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help_text=ugettext_lazy("Tell if the LDAP server is an Active Directory one")
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)
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sep3 = SeparatorField(label=ugettext_lazy("Miscellaneous"))
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log_maximum_age = forms.IntegerField(
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label=ugettext_lazy("Maximum log record age"),
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initial=365,
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help_text=ugettext_lazy("The maximum age in days of a log record")
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)
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items_per_page = forms.IntegerField(
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label=ugettext_lazy("Items per page"),
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initial=30,
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help_text=ugettext_lazy("Number of displayed items per page")
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)
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default_top_redirection = forms.ChoiceField(
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label=ugettext_lazy("Default top redirection"),
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choices=[],
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initial="core",
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help_text=ugettext_lazy("The default redirection used when no application is specified")
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)
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# Visibility rules
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visibility_rules = {
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"ldap_sep": "authentication_type=ldap",
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"ldap_server_address": "authentication_type=ldap",
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"ldap_server_port": "authentication_type=ldap",
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"ldap_secured": "authentication_type=ldap",
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"ldap_auth_method": "authentication_type=ldap",
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"ldap_bind_dn": "ldap_auth_method=searchbind",
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"ldap_bind_password": "ldap_auth_method=searchbind",
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"ldap_search_base": "ldap_auth_method=searchbind",
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"ldap_search_filter": "ldap_auth_method=searchbind",
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"ldap_user_dn_template": "ldap_auth_method=directbind",
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"ldap_password_attribute": "authentication_type=ldap",
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"ldap_is_active_directory": "authentication_type=ldap"
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}
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def __init__(self, *args, **kwargs):
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super(GeneralParametersForm, self).__init__(*args, **kwargs)
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self.fields["default_top_redirection"].choices = enabled_applications()
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def clean_ldap_user_dn_template(self):
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tpl = self.cleaned_data["ldap_user_dn_template"]
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try:
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test = tpl % {"user": "toto"}
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except ValueError:
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raise forms.ValidationError(_("Invalid syntax"))
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return tpl
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def clean(self):
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"""Custom validation method
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Depending on 'ldap_auth_method' value, we check for different
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required parameters.
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"""
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super(GeneralParametersForm, self).clean()
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if len(self._errors):
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raise forms.ValidationError(self._errors)
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cleaned_data = self.cleaned_data
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if cleaned_data["authentication_type"] != "ldap":
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return cleaned_data
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if cleaned_data["ldap_auth_method"] == "searchbind":
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required_fields = ["ldap_search_base", "ldap_search_filter"]
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else:
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required_fields = ["ldap_user_dn_template"]
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for f in required_fields:
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if not f in cleaned_data or cleaned_data[f] == u'':
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self._errors[f] = self.error_class([_("This field is required")])
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return cleaned_data
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def to_django_settings(self):
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"""Apply LDAP related parameters to Django settings
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Doing so, we can use the django_auth_ldap module.
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"""
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try:
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import ldap
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from django_auth_ldap.config import LDAPSearch
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ldap_available = True
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except ImportError:
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ldap_available = False
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values = self.get_current_values()
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if not ldap_available or values["authentication_type"] != "ldap":
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return
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if not hasattr(settings, "AUTH_LDAP_USER_ATTR_MAP"):
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setattr(settings, "AUTH_LDAP_USER_ATTR_MAP", {
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"first_name": "givenName",
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"email": "mail",
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"last_name": "sn"
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})
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ldap_uri = 'ldaps://' if values["ldap_secured"] == "yes" else "ldap://"
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ldap_uri += "%s:%s" % (values["ldap_server_address"], values["ldap_server_port"])
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setattr(settings, "AUTH_LDAP_SERVER_URI", ldap_uri)
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if values["ldap_auth_method"] == "searchbind":
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setattr(settings, "AUTH_LDAP_BIND_DN", values["ldap_bind_dn"])
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setattr(settings, "AUTH_LDAP_BIND_PASSWORD", values["ldap_bind_password"])
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search = LDAPSearch(
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values["ldap_search_base"], ldap.SCOPE_SUBTREE,
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values["ldap_search_filter"]
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)
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setattr(settings, "AUTH_LDAP_USER_SEARCH", search)
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else:
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setattr(settings, "AUTH_LDAP_USER_DN_TEMPLATE", values["ldap_user_dn_template"])
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if values["ldap_is_active_directory"] == "yes":
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if not hasattr(settings, "AUTH_LDAP_GLOBAL_OPTIONS"):
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setattr(settings, "AUTH_LDAP_GLOBAL_OPTIONS", {
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ldap.OPT_REFERRALS: False
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})
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else:
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settings.AUTH_LDAP_GLOBAL_OPTIONS[ldap.OPT_REFERRALS] = False
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def translate_language_code(value):
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if "-" in value:
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return value.split("-")[0]
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return value
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class UserSettings(parameters.UserParametersForm):
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app = "core"
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sep = SeparatorField(label=ugettext_lazy("Display"))
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lang = forms.ChoiceField(
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initial=translate_language_code(settings.LANGUAGE_CODE),
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label=ugettext_lazy("Prefered language"),
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choices=[("cs", "čeština"), ("de", "deutsch"),
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("en", "english"), ("es", "español"),
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("fr", "français"), ("it", "italiano"),
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("pt", "português"), ("sv", "svenska")],
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help_text=ugettext_lazy("Prefered language to display pages")
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)
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