diff options
Diffstat (limited to 'lib/gitlab/auth/ldap/config.rb')
| -rw-r--r-- | lib/gitlab/auth/ldap/config.rb | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/lib/gitlab/auth/ldap/config.rb b/lib/gitlab/auth/ldap/config.rb new file mode 100644 index 00000000000..77185f52ced --- /dev/null +++ b/lib/gitlab/auth/ldap/config.rb @@ -0,0 +1,237 @@ +# Load a specific server configuration +module Gitlab + module Auth + module LDAP + class Config + NET_LDAP_ENCRYPTION_METHOD = { + simple_tls: :simple_tls, + start_tls: :start_tls, + plain: nil + }.freeze + + attr_accessor :provider, :options + + def self.enabled? + Gitlab.config.ldap.enabled + end + + def self.servers + Gitlab.config.ldap['servers']&.values || [] + end + + def self.available_servers + return [] unless enabled? + + Array.wrap(servers.first) + end + + def self.providers + servers.map { |server| server['provider_name'] } + end + + def self.valid_provider?(provider) + providers.include?(provider) + end + + def self.invalid_provider(provider) + raise "Unknown provider (#{provider}). Available providers: #{providers}" + end + + def initialize(provider) + if self.class.valid_provider?(provider) + @provider = provider + else + self.class.invalid_provider(provider) + end + + @options = config_for(@provider) # Use @provider, not provider + end + + def enabled? + base_config.enabled + end + + def adapter_options + opts = base_options.merge( + encryption: encryption_options + ) + + opts.merge!(auth_options) if has_auth? + + opts + end + + def omniauth_options + opts = base_options.merge( + base: base, + encryption: options['encryption'], + filter: omniauth_user_filter, + name_proc: name_proc, + disable_verify_certificates: !options['verify_certificates'] + ) + + if has_auth? + opts.merge!( + bind_dn: options['bind_dn'], + password: options['password'] + ) + end + + opts[:ca_file] = options['ca_file'] if options['ca_file'].present? + opts[:ssl_version] = options['ssl_version'] if options['ssl_version'].present? + + opts + end + + def base + options['base'] + end + + def uid + options['uid'] + end + + def sync_ssh_keys? + sync_ssh_keys.present? + end + + # The LDAP attribute in which the ssh keys are stored + def sync_ssh_keys + options['sync_ssh_keys'] + end + + def user_filter + options['user_filter'] + end + + def constructed_user_filter + @constructed_user_filter ||= Net::LDAP::Filter.construct(user_filter) + end + + def group_base + options['group_base'] + end + + def admin_group + options['admin_group'] + end + + def active_directory + options['active_directory'] + end + + def block_auto_created_users + options['block_auto_created_users'] + end + + def attributes + default_attributes.merge(options['attributes']) + end + + def timeout + options['timeout'].to_i + end + + def has_auth? + options['password'] || options['bind_dn'] + end + + def allow_username_or_email_login + options['allow_username_or_email_login'] + end + + def lowercase_usernames + options['lowercase_usernames'] + end + + def name_proc + if allow_username_or_email_login + proc { |name| name.gsub(/@.*\z/, '') } + else + proc { |name| name } + end + end + + def default_attributes + { + 'username' => %w(uid sAMAccountName userid), + 'email' => %w(mail email userPrincipalName), + 'name' => 'cn', + 'first_name' => 'givenName', + 'last_name' => 'sn' + } + end + + protected + + def base_options + { + host: options['host'], + port: options['port'] + } + end + + def base_config + Gitlab.config.ldap + end + + def config_for(provider) + base_config.servers.values.find { |server| server['provider_name'] == provider } + end + + def encryption_options + method = translate_method(options['encryption']) + return nil unless method + + { + method: method, + tls_options: tls_options(method) + } + end + + def translate_method(method_from_config) + NET_LDAP_ENCRYPTION_METHOD[method_from_config.to_sym] + end + + def tls_options(method) + return { verify_mode: OpenSSL::SSL::VERIFY_NONE } unless method + + opts = if options['verify_certificates'] + OpenSSL::SSL::SSLContext::DEFAULT_PARAMS + else + # It is important to explicitly set verify_mode for two reasons: + # 1. The behavior of OpenSSL is undefined when verify_mode is not set. + # 2. The net-ldap gem implementation verifies the certificate hostname + # unless verify_mode is set to VERIFY_NONE. + { verify_mode: OpenSSL::SSL::VERIFY_NONE } + end + + opts[:ca_file] = options['ca_file'] if options['ca_file'].present? + opts[:ssl_version] = options['ssl_version'] if options['ssl_version'].present? + + opts + end + + def auth_options + { + auth: { + method: :simple, + username: options['bind_dn'], + password: options['password'] + } + } + end + + def omniauth_user_filter + uid_filter = Net::LDAP::Filter.eq(uid, '%{username}') + + if user_filter.present? + Net::LDAP::Filter.join(uid_filter, constructed_user_filter).to_s + else + uid_filter.to_s + end + end + end + end + end +end |