Authentication#

User registration#

The default setup for Weblate is to use python-social-auth, a form on the website to handle registration of new users. After confirming their e-mail a new user can contribute or authenticate by using one of the third party services.

You can also turn off registration of new users using REGISTRATION_OPEN.

The authentication attempts are subject to Rate limiting.

Authentication backends#

The built-in solution of Django is used for authentication, including various social options to do so. Using it means you can import the user database of other Django-based projects (see Migrating from Pootle).

Django can additionally be set up to authenticate against other means too.

See also

Authentication settings describes how to configure authentication in the official Docker image.

Password authentication#

The default settings.py comes with a reasonable set of AUTH_PASSWORD_VALIDATORS:

Passwords can’t be too similar to your other personal info.
Passwords must contain at least 10 characters.
Passwords can’t be a commonly used password.
Passwords can’t be entirely numeric.
Passwords can’t consist of a single character or only whitespace.
Passwords can’t match a password you have used in the past.

You can customize this setting to match your password policy.

Additionally you can also install django-zxcvbn-password which gives quite realistic estimates of password difficulty and allows rejecting passwords below a certain threshold.

SAML authentication#

New in version 4.1.1.

Please follow the Python Social Auth instructions for configuration. Notable differences:

Weblate supports single IDP which has to be called weblate in SOCIAL_AUTH_SAML_ENABLED_IDPS.
The SAML XML metadata URL is /accounts/metadata/saml/.
Following settings are automatically filled in: SOCIAL_AUTH_SAML_SP_ENTITY_ID, SOCIAL_AUTH_SAML_TECHNICAL_CONTACT, SOCIAL_AUTH_SAML_SUPPORT_CONTACT

Example configuration:

# Authentication configuration
AUTHENTICATION_BACKENDS = (
    "social_core.backends.email.EmailAuth",
    "social_core.backends.saml.SAMLAuth",
    "weblate.accounts.auth.WeblateUserBackend",
)

# Social auth backends setup
SOCIAL_AUTH_SAML_SP_ENTITY_ID = f"https://{SITE_DOMAIN}/accounts/metadata/saml/"
SOCIAL_AUTH_SAML_SP_PUBLIC_CERT = "-----BEGIN CERTIFICATE-----"
SOCIAL_AUTH_SAML_SP_PRIVATE_KEY = "-----BEGIN PRIVATE KEY-----"
SOCIAL_AUTH_SAML_ENABLED_IDPS = {
    "weblate": {
        "entity_id": "https://idp.testshib.org/idp/shibboleth",
        "url": "https://idp.testshib.org/idp/profile/SAML2/Redirect/SSO",
        "x509cert": "MIIEDjCCAvagAwIBAgIBADA ... 8Bbnl+ev0peYzxFyF5sQA==",
        "attr_name": "full_name",
        "attr_username": "username",
        "attr_email": "email",
    }
}
SOCIAL_AUTH_SAML_ORG_INFO = {
    "en-US": {
        "name": "example",
        "displayname": "Example Inc.",
        "url": "http://example.com"
    }
}
SOCIAL_AUTH_SAML_TECHNICAL_CONTACT = {
    "givenName": "Tech Gal",
    "emailAddress": "technical@example.com"
}
SOCIAL_AUTH_SAML_SUPPORT_CONTACT = {
    "givenName": "Support Guy",
    "emailAddress": "support@example.com"
}

The default configuration extracts user details from following attributes, configure your IDP to provide them:

Attribute	SAML URI reference
Full name	`urn:oid:2.5.4.3`
First name	`urn:oid:2.5.4.42`
Last name	`urn:oid:2.5.4.4`
E-mail	`urn:oid:0.9.2342.19200300.100.1.3`
Username	`urn:oid:0.9.2342.19200300.100.1.1`

Hint

The example above and the Docker image define an IDP called weblate. You might need to configure this string as Relay in your IDP.

See also

Configuring SAML in Docker, SAML

LDAP authentication#

LDAP authentication can be best achieved using the django-auth-ldap package. You can install it via usual means:

# Using PyPI
pip install django-auth-ldap>=1.3.0

# Using apt-get
apt-get install python-django-auth-ldap

Hint

This package is included in the Docker container, see Installing using Docker.

Note

There are some incompatibilities in the Python LDAP 3.1.0 module, which might prevent you from using that version. If you get error AttributeError: ‘module’ object has no attribute ‘_trace_level’, downgrading python-ldap to 3.0.0 might help.

Once you have the package installed, you can hook it into the Django authentication:

# Add LDAP backed, keep Django one if you want to be able to sign in
# even without LDAP for admin account
AUTHENTICATION_BACKENDS = (
    "django_auth_ldap.backend.LDAPBackend",
    "weblate.accounts.auth.WeblateUserBackend",
)

# LDAP server address
AUTH_LDAP_SERVER_URI = "ldaps://ldap.example.net"

# DN to use for authentication
AUTH_LDAP_USER_DN_TEMPLATE = "cn=%(user)s,o=Example"
# Depending on your LDAP server, you might use a different DN
# like:
# AUTH_LDAP_USER_DN_TEMPLATE = 'ou=users,dc=example,dc=com'

# List of attributes to import from LDAP upon sign in
# Weblate stores full name of the user in the full_name attribute
AUTH_LDAP_USER_ATTR_MAP = {
    "full_name": "name",
    # Use the following if your LDAP server does not have full name
    # Weblate will merge them later
    # 'first_name': 'givenName',
    # 'last_name': 'sn',
    # Email is required for Weblate (used in VCS commits)
    "email": "mail",
}

# Hide the registration form
REGISTRATION_OPEN = False

Note

You should remove 'social_core.backends.email.EmailAuth' from the AUTHENTICATION_BACKENDS setting, otherwise users will be able to set their password in Weblate, and authenticate using that. Keeping 'weblate.accounts.auth.WeblateUserBackend' is still needed in order to make permissions and facilitate anonymous users. It will also allow you to sign in using a local admin account, if you have created it (e.g. by using createadmin).

Using bind password#

If you can not use direct bind for authentication, you will need to use search, and provide a user to bind for the search. For example:

import ldap
from django_auth_ldap.config import LDAPSearch

AUTH_LDAP_BIND_DN = ""
AUTH_LDAP_BIND_PASSWORD = ""
AUTH_LDAP_USER_SEARCH = LDAPSearch(
    "ou=users,dc=example,dc=com", ldap.SCOPE_SUBTREE, "(uid=%(user)s)"
)

Active Directory integration#

import ldap
from django_auth_ldap.config import LDAPSearch, NestedActiveDirectoryGroupType

AUTH_LDAP_BIND_DN = "CN=ldap,CN=Users,DC=example,DC=com"
AUTH_LDAP_BIND_PASSWORD = "password"

# User and group search objects and types
AUTH_LDAP_USER_SEARCH = LDAPSearch(
    "CN=Users,DC=example,DC=com", ldap.SCOPE_SUBTREE, "(sAMAccountName=%(user)s)"
)

# Make selected group a superuser in Weblate
AUTH_LDAP_USER_FLAGS_BY_GROUP = {
    # is_superuser means user has all permissions
    "is_superuser": "CN=weblate_AdminUsers,OU=Groups,DC=example,DC=com",
}

# Map groups from AD to Weblate
AUTH_LDAP_GROUP_SEARCH = LDAPSearch(
    "OU=Groups,DC=example,DC=com", ldap.SCOPE_SUBTREE, "(objectClass=group)"
)
AUTH_LDAP_GROUP_TYPE = NestedActiveDirectoryGroupType()
AUTH_LDAP_FIND_GROUP_PERMS = True

# Optionally enable group mirroring from LDAP to Weblate
# AUTH_LDAP_MIRROR_GROUPS = True

CAS authentication#

CAS authentication can be achieved using a package such as django-cas-ng.

Step one is disclosing the e-mail field of the user via CAS. This has to be configured on the CAS server itself, and requires you run at least CAS v2 since CAS v1 doesn’t support attributes at all.

Step two is updating Weblate to use your CAS server and attributes.

To install django-cas-ng:

pip install django-cas-ng

Once you have the package installed you can hook it up to the Django authentication system by modifying the settings.py file:

# Add CAS backed, keep the Django one if you want to be able to sign in
# even without LDAP for the admin account
AUTHENTICATION_BACKENDS = (
    "django_cas_ng.backends.CASBackend",
    "weblate.accounts.auth.WeblateUserBackend",
)

# CAS server address
CAS_SERVER_URL = "https://cas.example.net/cas/"

# Add django_cas_ng somewhere in the list of INSTALLED_APPS
INSTALLED_APPS = (..., "django_cas_ng")

Finally, a signal can be used to map the e-mail field to the user object. For this to work you have to import the signal from the django-cas-ng package and connect your code with this signal. Doing this in settings file can cause problems, therefore it’s suggested to put it:

In your app config’s django.apps.AppConfig.ready() method
In the project’s urls.py file (when no models exist)

from django_cas_ng.signals import cas_user_authenticated
from django.dispatch import receiver


@receiver(cas_user_authenticated)
def update_user_email_address(sender, user=None, attributes=None, **kwargs):
    # If your CAS server does not always include the email attribute
    # you can wrap the next two lines of code in a try/catch block.
    user.email = attributes["email"]
    user.save()

See also

Django CAS NG

Configuring third party Django authentication#

Generally any Django authentication plugin should work with Weblate. Just follow the instructions for the plugin, just remember to keep the Weblate user backend installed.

See also

LDAP authentication, CAS authentication

Typically the installation will consist of adding an authentication backend to AUTHENTICATION_BACKENDS and installing an authentication app (if there is any) into INSTALLED_APPS:

AUTHENTICATION_BACKENDS = (
    # Add authentication backend here
    "weblate.accounts.auth.WeblateUserBackend",
)

INSTALLED_APPS += (
    # Install authentication app here
)

Authentication#

User registration#

Authentication backends#

Social authentication#

OpenID authentication#

GitHub authentication#

GitHub EE authentication#

Bitbucket authentication#

Google OAuth 2#

Facebook OAuth 2#

GitLab OAuth 2#

Microsoft Azure Active Directory#

Slack#

Overriding authentication method names and icons#

Turning off password authentication#

Password authentication#

SAML authentication#

LDAP authentication#

Using bind password#

Active Directory integration#

CAS authentication#

Configuring third party Django authentication#