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| 1 | <?php |
| 2 | /** |
| 3 | * Force Jetpack 2FA Functionality |
| 4 | * |
| 5 | * Ported from original repo at https://github.com/automattic/jetpack-force-2fa |
| 6 | * |
| 7 | * @package automattic/jetpack-connection |
| 8 | */ |
| 9 | |
| 10 | namespace Automattic\Jetpack\Connection\SSO; |
| 11 | |
| 12 | use Automattic\Jetpack\Connection\SSO; |
| 13 | use Automattic\Jetpack\Modules; |
| 14 | use WP_Error; |
| 15 | |
| 16 | /** |
| 17 | * Force users to use two-factor authentication. |
| 18 | * |
| 19 | * @phan-constructor-used-for-side-effects |
| 20 | */ |
| 21 | class Force_2FA { |
| 22 | /** |
| 23 | * The role to force 2FA for. |
| 24 | * |
| 25 | * Defaults to manage_options via the plugins_loaded function. |
| 26 | * Can be modified with the jetpack_force_2fa_cap filter. |
| 27 | * |
| 28 | * @var string |
| 29 | */ |
| 30 | private $role; |
| 31 | |
| 32 | /** |
| 33 | * Constructor. |
| 34 | */ |
| 35 | public function __construct() { |
| 36 | add_action( 'after_setup_theme', array( $this, 'plugins_loaded' ) ); |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * Load the plugin via the plugins_loaded hook. |
| 41 | */ |
| 42 | public function plugins_loaded() { |
| 43 | /** |
| 44 | * Filter the role to force 2FA for. |
| 45 | * Defaults to manage_options. |
| 46 | * |
| 47 | * @param string $role The role to force 2FA for. |
| 48 | * @return string |
| 49 | * @since jetpack-12.7 |
| 50 | * @module SSO |
| 51 | */ |
| 52 | $this->role = apply_filters( 'jetpack_force_2fa_cap', 'manage_options' ); |
| 53 | |
| 54 | // Bail if Jetpack SSO is not active |
| 55 | if ( ! ( new Modules() )->is_active( 'sso' ) ) { |
| 56 | add_action( 'admin_notices', array( $this, 'admin_notice' ) ); |
| 57 | return; |
| 58 | } |
| 59 | |
| 60 | $this->force_2fa(); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Display an admin notice if Jetpack SSO is not active. |
| 65 | */ |
| 66 | public function admin_notice() { |
| 67 | /** |
| 68 | * Filter if an admin notice is deplayed when Force 2FA is required, but SSO is not enabled. |
| 69 | * Defaults to true. |
| 70 | * |
| 71 | * @param bool $display_notice Whether to display the notice. |
| 72 | * @return bool |
| 73 | * @since jetpack-12.7 |
| 74 | * @module SSO |
| 75 | */ |
| 76 | if ( apply_filters( 'jetpack_force_2fa_dependency_notice', true ) && current_user_can( $this->role ) ) { |
| 77 | wp_admin_notice( |
| 78 | esc_html__( 'Jetpack Force 2FA requires Jetpackās SSO feature.', 'jetpack-connection' ), |
| 79 | array( |
| 80 | 'type' => 'warning', |
| 81 | ) |
| 82 | ); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Force 2FA when using Jetpack SSO and force Jetpack SSO. |
| 88 | * |
| 89 | * @return void |
| 90 | */ |
| 91 | private function force_2fa() { |
| 92 | // Allows WP.com login to a local account if it matches the local account. |
| 93 | add_filter( 'jetpack_sso_match_by_email', '__return_true', 9999 ); |
| 94 | |
| 95 | // multisite |
| 96 | if ( is_multisite() ) { |
| 97 | |
| 98 | // Hide the login form |
| 99 | add_filter( 'jetpack_remove_login_form', '__return_true', 9999 ); |
| 100 | add_filter( 'jetpack_sso_bypass_login_forward_wpcom', '__return_true', 9999 ); |
| 101 | add_filter( 'jetpack_sso_display_disclaimer', '__return_false', 9999 ); |
| 102 | |
| 103 | add_filter( |
| 104 | 'wp_authenticate_user', |
| 105 | function () { |
| 106 | return new WP_Error( 'wpcom-required', $this->get_login_error_message() ); }, |
| 107 | 9999 |
| 108 | ); |
| 109 | |
| 110 | add_filter( 'jetpack_sso_require_two_step', '__return_true' ); |
| 111 | |
| 112 | add_filter( 'allow_password_reset', '__return_false' ); |
| 113 | } else { |
| 114 | // Not multisite. |
| 115 | |
| 116 | // Completely disable the standard login form for admins. |
| 117 | add_filter( |
| 118 | 'wp_authenticate_user', |
| 119 | function ( $user ) { |
| 120 | if ( is_wp_error( $user ) ) { |
| 121 | return $user; |
| 122 | } |
| 123 | if ( $user->has_cap( $this->role ) ) { |
| 124 | return new WP_Error( 'wpcom-required', $this->get_login_error_message(), $user->user_login ); |
| 125 | } |
| 126 | return $user; |
| 127 | }, |
| 128 | 9999 |
| 129 | ); |
| 130 | |
| 131 | add_filter( |
| 132 | 'allow_password_reset', |
| 133 | function ( $allow, $user_id ) { |
| 134 | if ( user_can( $user_id, $this->role ) ) { |
| 135 | return false; |
| 136 | } |
| 137 | return $allow; }, |
| 138 | 9999, |
| 139 | 2 |
| 140 | ); |
| 141 | |
| 142 | add_action( 'jetpack_sso_pre_handle_login', array( $this, 'jetpack_set_two_step' ) ); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Specifically set the two step filter for Jetpack SSO. |
| 148 | * |
| 149 | * @param Object $user_data The user data from WordPress.com. |
| 150 | * |
| 151 | * @return void |
| 152 | */ |
| 153 | public function jetpack_set_two_step( $user_data ) { |
| 154 | $user = SSO::get_user_by_wpcom_id( $user_data->ID ); |
| 155 | |
| 156 | // Borrowed from Jetpack. Ignores the match_by_email setting. |
| 157 | if ( empty( $user ) ) { |
| 158 | $user = get_user_by( 'email', $user_data->email ); |
| 159 | } |
| 160 | |
| 161 | if ( $user && $user->has_cap( $this->role ) ) { |
| 162 | add_filter( 'jetpack_sso_require_two_step', '__return_true' ); |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Get the login error message. |
| 168 | * |
| 169 | * @return string |
| 170 | */ |
| 171 | private function get_login_error_message() { |
| 172 | /** |
| 173 | * Filter the login error message. |
| 174 | * Defaults to a message that explains the user must use a WordPress.com account with 2FA enabled. |
| 175 | * |
| 176 | * @param string $message The login error message. |
| 177 | * @return string |
| 178 | * @since jetpack-12.7 |
| 179 | * @module SSO |
| 180 | */ |
| 181 | return apply_filters( |
| 182 | 'jetpack_force_2fa_login_error_message', |
| 183 | sprintf( 'For added security, please log in using your WordPress.com account.<br /><br />Note: Your account must have <a href="%1$s" target="_blank">Two Step Authentication</a> enabled, which can be configured from <a href="%2$s" target="_blank">Security Settings</a>.', 'https://support.wordpress.com/security/two-step-authentication/', 'https://wordpress.com/me/security/two-step' ) |
| 184 | ); |
| 185 | } |
| 186 | } |