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| 1 | <?php |
| 2 | /** |
| 3 | * Registry of Jetpack Forms integrations. |
| 4 | * |
| 5 | * @package automattic/jetpack-forms |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Forms\Integrations; |
| 9 | |
| 10 | /** |
| 11 | * Holds every integration known to Jetpack Forms, whether it ships with the package or |
| 12 | * comes from a third-party plugin. |
| 13 | * |
| 14 | * Registration is deliberately order-insensitive: `register()` only records an entry, and |
| 15 | * carries no requirement about when it is called or what has loaded first. Nothing about the |
| 16 | * order in which integrations arrive is meaningful — presentation order is decided by the |
| 17 | * layer that displays them, not here. |
| 18 | */ |
| 19 | class Integration_Registry { |
| 20 | |
| 21 | /** |
| 22 | * Shape of a valid integration slug. |
| 23 | * |
| 24 | * Either a bare name, or a `vendor/name` pair. The namespaced form is what new |
| 25 | * integrations should use; the bare form is kept valid because the bundled integrations |
| 26 | * already publish theirs through the REST API and store them in saved block attributes, |
| 27 | * where renaming them would orphan existing settings. |
| 28 | */ |
| 29 | public const SLUG_PATTERN = '#^[\w-]+(?:/[\w-]+)?$#'; |
| 30 | |
| 31 | /** |
| 32 | * Registered integrations, keyed by slug. |
| 33 | * |
| 34 | * @var array<string, array> |
| 35 | */ |
| 36 | private static $integrations = array(); |
| 37 | |
| 38 | /** |
| 39 | * Default shape of a registered integration. |
| 40 | * |
| 41 | * Every key a consumer may read is present after normalization, so callers never have to |
| 42 | * guard with isset() against an integration that declared only the keys it cared about. |
| 43 | * |
| 44 | * @var array |
| 45 | */ |
| 46 | private const DEFAULTS = array( |
| 47 | // Presentation metadata, mirrored into the REST responses. |
| 48 | 'type' => 'service', |
| 49 | 'file' => null, |
| 50 | 'settings_url' => null, |
| 51 | 'marketing_redirect_slug' => null, |
| 52 | 'title' => '', |
| 53 | 'subtitle' => '', |
| 54 | 'active_tooltip' => '', |
| 55 | 'enabled_by_default' => false, |
| 56 | 'icon_url' => null, |
| 57 | |
| 58 | // Behavior. |
| 59 | 'is_available' => null, |
| 60 | 'status_callback' => null, |
| 61 | 'on_submission' => null, |
| 62 | |
| 63 | // Storage. Null means per-form settings live in the shared `integrations` block |
| 64 | // attribute under this integration's slug. Integrations that predate that container |
| 65 | // name the top-level block attribute they already use, so their saved content keeps |
| 66 | // working untouched. See self::normalize_settings_attribute() for the accepted forms. |
| 67 | 'settings_attribute' => null, |
| 68 | |
| 69 | // Script handles registered with wp_register_script(), enqueued on the screens that |
| 70 | // render the integrations modal. |
| 71 | 'editor_script' => null, |
| 72 | 'dashboard_script' => null, |
| 73 | ); |
| 74 | |
| 75 | /** |
| 76 | * Register an integration. |
| 77 | * |
| 78 | * Re-registering a slug replaces the previous entry, which lets a plugin override a |
| 79 | * bundled integration. |
| 80 | * |
| 81 | * @param string $slug Unique slug, used as the REST identifier and the key in the shared |
| 82 | * `integrations` block attribute. New integrations should namespace |
| 83 | * it as `vendor/name` so two plugins cannot collide on a common name. |
| 84 | * A bare name stays valid — the bundled integrations predate the |
| 85 | * convention and keep theirs. |
| 86 | * @param array $args Integration definition. See self::DEFAULTS for supported keys. |
| 87 | * @return bool Whether the integration was registered. |
| 88 | */ |
| 89 | public static function register( $slug, array $args = array() ) { |
| 90 | if ( ! is_string( $slug ) || ! preg_match( self::SLUG_PATTERN, $slug ) ) { |
| 91 | $message = esc_html( 'Integration slugs must look like "name" or "vendor/name", using word characters and hyphens.' ); |
| 92 | _doing_it_wrong( __METHOD__, $message, 'jetpack-forms-$$next-version$$' ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- Escaped above. |
| 93 | return false; |
| 94 | } |
| 95 | |
| 96 | self::$integrations[ $slug ] = self::normalize( $args ); |
| 97 | |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Fill in every key a consumer may read. |
| 103 | * |
| 104 | * Also applied to integrations that arrive through the |
| 105 | * `jetpack_forms_supported_integrations` filter, which predates this registry and supplies |
| 106 | * only the presentation keys. |
| 107 | * |
| 108 | * @param array $args A partial integration definition. |
| 109 | * @return array The definition with every supported key present. |
| 110 | */ |
| 111 | public static function normalize( array $args ) { |
| 112 | $args = array_merge( self::DEFAULTS, $args ); |
| 113 | |
| 114 | $args['settings_attribute'] = self::normalize_settings_attribute( $args['settings_attribute'] ); |
| 115 | |
| 116 | return $args; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Remove a registered integration. |
| 121 | * |
| 122 | * @param string $slug Integration slug. |
| 123 | * @return void |
| 124 | */ |
| 125 | public static function unregister( $slug ) { |
| 126 | unset( self::$integrations[ $slug ] ); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * Get a single registered integration. |
| 131 | * |
| 132 | * @param string $slug Integration slug. |
| 133 | * @return array|null The normalized definition, or null when nothing is registered. |
| 134 | */ |
| 135 | public static function get( $slug ) { |
| 136 | return self::$integrations[ $slug ] ?? null; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Get every registered integration, including ones that are not currently available. |
| 141 | * |
| 142 | * @return array<string, array> Definitions keyed by slug, in registration order. |
| 143 | */ |
| 144 | public static function all() { |
| 145 | return self::$integrations; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Get the integrations that are currently available. |
| 150 | * |
| 151 | * An integration with no `is_available` callback is always available. This is the hook a |
| 152 | * feature flag uses, so a flagged-off integration is absent from the REST responses and |
| 153 | * the UI entirely rather than shown in a disabled state. |
| 154 | * |
| 155 | * @return array<string, array> Available definitions keyed by slug. |
| 156 | */ |
| 157 | public static function available() { |
| 158 | return array_filter( |
| 159 | self::$integrations, |
| 160 | function ( $args ) { |
| 161 | if ( null === $args['is_available'] ) { |
| 162 | return true; |
| 163 | } |
| 164 | |
| 165 | return is_callable( $args['is_available'] ) && (bool) call_user_func( $args['is_available'] ); |
| 166 | } |
| 167 | ); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Put a declared `settings_attribute` into a single internal shape. |
| 172 | * |
| 173 | * Two forms are accepted, because the block attributes that predate the shared container |
| 174 | * are not uniformly shaped: |
| 175 | * |
| 176 | * - `'salesforceData'` — the attribute holds the whole settings object. |
| 177 | * - `array( 'name' => 'jetpackCRM', 'maps_to' => 'enabled' )` — the attribute holds a |
| 178 | * single scalar, which stands for one named setting. `jetpackCRM` is a bare boolean, so |
| 179 | * without this form it could not be expressed at all. |
| 180 | * |
| 181 | * @param mixed $declared The value passed at registration. |
| 182 | * @return array|null Normalized as array{name: string, maps_to: string|null}, or null. |
| 183 | */ |
| 184 | private static function normalize_settings_attribute( $declared ) { |
| 185 | if ( is_string( $declared ) && '' !== $declared ) { |
| 186 | return array( |
| 187 | 'name' => $declared, |
| 188 | 'maps_to' => null, |
| 189 | ); |
| 190 | } |
| 191 | |
| 192 | if ( is_array( $declared ) && ! empty( $declared['name'] ) && is_string( $declared['name'] ) ) { |
| 193 | $maps_to = isset( $declared['maps_to'] ) && is_string( $declared['maps_to'] ) && '' !== $declared['maps_to'] |
| 194 | ? $declared['maps_to'] |
| 195 | : null; |
| 196 | |
| 197 | return array( |
| 198 | 'name' => $declared['name'], |
| 199 | 'maps_to' => $maps_to, |
| 200 | ); |
| 201 | } |
| 202 | |
| 203 | return null; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * How a form stores settings for an integration. |
| 208 | * |
| 209 | * @param string $slug Integration slug. |
| 210 | * @return array|null array{name: string, maps_to: string|null} for an integration using a |
| 211 | * legacy top-level block attribute, or null when it uses the shared |
| 212 | * `integrations` container. |
| 213 | */ |
| 214 | public static function get_settings_attribute( $slug ) { |
| 215 | $args = self::get( $slug ); |
| 216 | |
| 217 | return $args ? $args['settings_attribute'] : null; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Reset the registry. |
| 222 | * |
| 223 | * Only intended for tests, which need a clean registry between cases. |
| 224 | * |
| 225 | * @return void |
| 226 | */ |
| 227 | public static function reset() { |
| 228 | self::$integrations = array(); |
| 229 | } |
| 230 | } |