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| 1 | <?php |
| 2 | /** |
| 3 | * The Jetpack Connection package Utils class file. |
| 4 | * |
| 5 | * @package automattic/jetpack-connection |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Connection; |
| 9 | |
| 10 | use Automattic\Jetpack\Tracking; |
| 11 | |
| 12 | /** |
| 13 | * Provides utility methods for the Connection package. |
| 14 | */ |
| 15 | class Utils { |
| 16 | |
| 17 | const DEFAULT_JETPACK__API_VERSION = 1; |
| 18 | const DEFAULT_JETPACK__API_BASE = 'https://jetpack.wordpress.com/jetpack.'; |
| 19 | const DEFAULT_JETPACK__WPCOM_JSON_API_BASE = 'https://public-api.wordpress.com'; |
| 20 | |
| 21 | /** |
| 22 | * Enters a user token into the user_tokens option |
| 23 | * |
| 24 | * @deprecated 1.24.0 Use Automattic\Jetpack\Connection\Tokens->update_user_token() instead. |
| 25 | * |
| 26 | * @param int $user_id The user id. |
| 27 | * @param string $token The user token. |
| 28 | * @param bool $is_master_user Whether the user is the master user. |
| 29 | * @return bool |
| 30 | */ |
| 31 | public static function update_user_token( $user_id, $token, $is_master_user ) { |
| 32 | _deprecated_function( __METHOD__, '1.24.0', 'Automattic\\Jetpack\\Connection\\Tokens->update_user_token' ); |
| 33 | return ( new Tokens() )->update_user_token( $user_id, $token, $is_master_user ); |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Filters the value of the api constant. |
| 38 | * |
| 39 | * @param String $constant_value The constant value. |
| 40 | * @param String $constant_name The constant name. |
| 41 | * @return mixed | null |
| 42 | */ |
| 43 | public static function jetpack_api_constant_filter( $constant_value, $constant_name ) { |
| 44 | if ( $constant_value !== null ) { |
| 45 | // If the constant value was already set elsewhere, use that value. |
| 46 | return $constant_value; |
| 47 | } |
| 48 | |
| 49 | if ( defined( "self::DEFAULT_$constant_name" ) ) { |
| 50 | return constant( "self::DEFAULT_$constant_name" ); |
| 51 | } |
| 52 | |
| 53 | return null; |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Add a filter to initialize default values of the constants. |
| 58 | */ |
| 59 | public static function init_default_constants() { |
| 60 | add_filter( |
| 61 | 'jetpack_constant_default_value', |
| 62 | array( __CLASS__, 'jetpack_api_constant_filter' ), |
| 63 | 10, |
| 64 | 2 |
| 65 | ); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Filters the registration request body to include tracking properties. |
| 70 | * |
| 71 | * @param array $properties Already prepared tracking properties. |
| 72 | * @return array amended properties. |
| 73 | */ |
| 74 | public static function filter_register_request_body( $properties ) { |
| 75 | $tracking = new Tracking(); |
| 76 | $tracks_identity = $tracking->tracks_get_identity( get_current_user_id() ); |
| 77 | |
| 78 | return array_merge( |
| 79 | $properties, |
| 80 | array( |
| 81 | '_ui' => $tracks_identity['_ui'], |
| 82 | '_ut' => $tracks_identity['_ut'], |
| 83 | ) |
| 84 | ); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Generate a new user from a SSO attempt. |
| 89 | * |
| 90 | * @param object $user_data WordPress.com user information. |
| 91 | */ |
| 92 | public static function generate_user( $user_data ) { |
| 93 | $username = $user_data->login; |
| 94 | /** |
| 95 | * Determines how many times the SSO module can attempt to randomly generate a user. |
| 96 | * |
| 97 | * @module sso |
| 98 | * |
| 99 | * @since jetpack-4.3.2 |
| 100 | * |
| 101 | * @param int 5 By default, SSO will attempt to random generate a user up to 5 times. |
| 102 | */ |
| 103 | $num_tries = (int) apply_filters( 'jetpack_sso_allowed_username_generate_retries', 5 ); |
| 104 | |
| 105 | $exists = username_exists( $username ); |
| 106 | $tries = 0; |
| 107 | while ( $exists && $tries++ < $num_tries ) { |
| 108 | $username = $user_data->login . '_' . $user_data->ID . '_' . wp_rand(); |
| 109 | $exists = username_exists( $username ); |
| 110 | } |
| 111 | |
| 112 | if ( $exists ) { |
| 113 | return false; |
| 114 | } |
| 115 | |
| 116 | $user = (object) array(); |
| 117 | $user->user_pass = wp_generate_password( 20 ); |
| 118 | $user->user_login = wp_slash( $username ); |
| 119 | $user->user_email = wp_slash( $user_data->email ); |
| 120 | $user->display_name = $user_data->display_name; |
| 121 | $user->first_name = $user_data->first_name; |
| 122 | $user->last_name = $user_data->last_name; |
| 123 | $user->url = $user_data->url; |
| 124 | $user->description = $user_data->description; |
| 125 | |
| 126 | if ( isset( $user_data->role ) && $user_data->role ) { |
| 127 | $user->role = $user_data->role; |
| 128 | } |
| 129 | |
| 130 | $created_user_id = wp_insert_user( $user ); |
| 131 | |
| 132 | // `clean_user_cache()` calls `exists()` on anything non-numeric, which a WP_Error does not have. |
| 133 | if ( is_wp_error( $created_user_id ) ) { |
| 134 | return false; |
| 135 | } |
| 136 | |
| 137 | self::set_wpcom_user_id( $created_user_id, (int) $user_data->ID ); |
| 138 | return get_userdata( $created_user_id ); |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Get the WordPress.com user ID bound to a local user. |
| 143 | * |
| 144 | * The `wpcom_user_id` meta is a durable, one-to-one, WordPress.com-asserted identity binding, |
| 145 | * not a cache of any one token: SSO and Premium Content read and write it too, and it outlives |
| 146 | * the connection that first established it. Do not drop it because a token went away. |
| 147 | * |
| 148 | * @since 9.2.0 |
| 149 | * |
| 150 | * @param int $user_id The local WordPress user ID. |
| 151 | * @return int The WordPress.com user ID, or 0 when none is bound. |
| 152 | */ |
| 153 | public static function get_wpcom_user_id( $user_id ) { |
| 154 | return (int) get_user_meta( absint( $user_id ), 'wpcom_user_id', true ); |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Bind a WordPress.com user ID to a local user, removing it from any other user first. |
| 159 | * |
| 160 | * Two local users answering to the same WordPress.com identity would make owner resolution |
| 161 | * ambiguous, so the previous holder is cleared. That only holds for writes routed through here: |
| 162 | * Premium Content writes the same key directly, so uniqueness is not guaranteed site-wide. On |
| 163 | * multisite the lookup is scoped to the current site. |
| 164 | * |
| 165 | * @since 9.2.0 |
| 166 | * |
| 167 | * @param int $user_id The local WordPress user ID. |
| 168 | * @param int $wpcom_user_id The WordPress.com user ID. |
| 169 | */ |
| 170 | public static function set_wpcom_user_id( $user_id, $wpcom_user_id ) { |
| 171 | $user_id = absint( $user_id ); |
| 172 | $wpcom_user_id = absint( $wpcom_user_id ); |
| 173 | |
| 174 | // 0 is what `get_wpcom_user_id()` returns for "nothing bound", so it is not storable. |
| 175 | if ( ! $user_id || ! $wpcom_user_id ) { |
| 176 | return; |
| 177 | } |
| 178 | |
| 179 | $existing = new \WP_User_Query( |
| 180 | array( |
| 181 | 'meta_key' => 'wpcom_user_id', |
| 182 | 'meta_value' => $wpcom_user_id, |
| 183 | 'exclude' => array( $user_id ), |
| 184 | 'fields' => 'ID', |
| 185 | 'count_total' => false, |
| 186 | ) |
| 187 | ); |
| 188 | |
| 189 | foreach ( $existing->get_results() as $stale_user_id ) { |
| 190 | delete_user_meta( $stale_user_id, 'wpcom_user_id' ); |
| 191 | clean_user_cache( $stale_user_id ); |
| 192 | } |
| 193 | |
| 194 | update_user_meta( $user_id, 'wpcom_user_id', $wpcom_user_id ); |
| 195 | clean_user_cache( $user_id ); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Drop the WordPress.com user ID bound to a local user. |
| 200 | * |
| 201 | * Only for when the binding itself is known to be wrong — a token replaced with a different |
| 202 | * WordPress.com account. A disconnect does not make it wrong, and other subsystems store their |
| 203 | * own meaning in this key. |
| 204 | * |
| 205 | * @since 9.2.0 |
| 206 | * |
| 207 | * @param int $user_id The local WordPress user ID. |
| 208 | */ |
| 209 | public static function delete_wpcom_user_id( $user_id ) { |
| 210 | $user_id = absint( $user_id ); |
| 211 | |
| 212 | // `clean_user_cache()` bumps the site-wide users cache salt, so skip it on the common |
| 213 | // no-op path where there was nothing bound. |
| 214 | if ( delete_user_meta( $user_id, 'wpcom_user_id' ) ) { |
| 215 | clean_user_cache( $user_id ); |
| 216 | } |
| 217 | } |
| 218 | } |