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|
# These calls help to authenticate to LDAP by providing username and password
#
# Since multiple LDAP servers are supported, it will loop through all of them
# until a valid bind is found
#
module Gitlab
module LDAP
class Authentication
def self.login(login, password)
return unless Gitlab::LDAP::Config.enabled?
return unless login.present? && password.present?
auth = nil
# loop through providers until valid bind
providers.find do |provider|
auth = new(provider)
auth.login(login, password) # true will exit the loop
end
# If (login, password) was invalid for all providers, the value of auth is now the last
# Gitlab::LDAP::Authentication instance we tried.
auth.user
end
def self.providers
Gitlab::LDAP::Config.providers
end
attr_accessor :provider, :ldap_user
def initialize(provider)
@provider = provider
end
def login(login, password)
@ldap_user = adapter.bind_as(
filter: user_filter(login),
size: 1,
password: password
)
end
def adapter
OmniAuth::LDAP::Adaptor.new(config.options.symbolize_keys)
end
def config
Gitlab::LDAP::Config.new(provider)
end
def user_filter(login)
filter = Net::LDAP::Filter.equals(config.uid, login)
# Apply LDAP user filter if present
if config.user_filter.present?
filter = Net::LDAP::Filter.join(filter, config.constructed_user_filter)
end
filter
end
def user
return nil unless ldap_user
Gitlab::LDAP::User.find_by_uid_and_provider(ldap_user.dn, provider)
end
end
end
end
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