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| 1 | <?php |
| 2 | /** |
| 3 | * Class WPCom_Themes_Api. |
| 4 | * Retrieves themes from the WordPress.com themes API. |
| 5 | * |
| 6 | * @package automattic/jetpack-mu-wpcom |
| 7 | */ |
| 8 | |
| 9 | /** |
| 10 | * Fetches themes from the WordPress.com themes API. |
| 11 | */ |
| 12 | class WPCom_Themes_Api { |
| 13 | |
| 14 | /** |
| 15 | * The URL of the WordPress.com themes API. |
| 16 | */ |
| 17 | const WP_COM_THEMES_API_URL = 'https://public-api.wordpress.com/wpcom/v2/themes?_envelope=1&page=1&number=1000'; |
| 18 | |
| 19 | /** |
| 20 | * The URL of the WordPress.com theme API. |
| 21 | */ |
| 22 | const WP_COM_THEME_API_URL = 'https://public-api.wordpress.com/rest/v1.2/themes/%s?http_envelope=1'; |
| 23 | |
| 24 | /** |
| 25 | * Cache handler. |
| 26 | * |
| 27 | * @var WPCom_Themes_Cache $cache |
| 28 | */ |
| 29 | private WPCom_Themes_Cache $cache; |
| 30 | |
| 31 | /** |
| 32 | * Class constructor. |
| 33 | * |
| 34 | * @param WPCom_Themes_Cache $cache Cache handler. |
| 35 | */ |
| 36 | public function __construct( WPCom_Themes_Cache $cache ) { |
| 37 | $this->cache = $cache; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Returns an array of themes fetched from the WordPress.com themes API. |
| 42 | * Caching is used to avoid fetching the themes on every request. |
| 43 | * |
| 44 | * @param string $cache_key Key of the cache where the API response will be cached. |
| 45 | * @param array $params Query params to pass to the API URL. |
| 46 | * |
| 47 | * @return array<stdClass> An array with all the WPCom themes. |
| 48 | */ |
| 49 | protected function fetch_themes( string $cache_key, array $params = array() ): array { |
| 50 | $url = add_query_arg( $params, self::WP_COM_THEMES_API_URL ); |
| 51 | |
| 52 | return $this->cache->run_cached( |
| 53 | $cache_key, |
| 54 | function () use ( $url ) { |
| 55 | $body = $this->handle_request( $url ); |
| 56 | |
| 57 | // Null, not an empty array: run_cached() stores anything else. |
| 58 | return isset( $body->themes ) && is_array( $body->themes ) ? $body->themes : null; |
| 59 | } |
| 60 | ) ?? array(); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Fetches the response from the given URL. |
| 65 | * |
| 66 | * @param string $url URL to fetch. |
| 67 | * |
| 68 | * @return ?stdClass Response body. |
| 69 | */ |
| 70 | protected function handle_request( string $url ): ?stdClass { |
| 71 | $response = wp_remote_get( esc_url_raw( $url ) ); |
| 72 | if ( 200 === wp_remote_retrieve_response_code( $response ) ) { |
| 73 | $body_json = json_decode( wp_remote_retrieve_body( $response ) ); |
| 74 | |
| 75 | if ( isset( $body_json->body ) ) { |
| 76 | return $body_json->body; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | return null; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Returns all the WP.com themes. |
| 85 | * |
| 86 | * @return array<stdClass> An array with all the WPCom themes. |
| 87 | */ |
| 88 | public function fetch_all_non_delisted_themes(): array { |
| 89 | return $this->fetch_themes( 'wpcom-themes-all' ); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Returns the WP.com theme with the given slug. |
| 94 | * |
| 95 | * @param string $slug Theme slug. |
| 96 | * |
| 97 | * @return stdClass|null A WPCom theme object or null if not found. |
| 98 | */ |
| 99 | public function fetch_theme( string $slug ): ?stdClass { |
| 100 | $url = sprintf( self::WP_COM_THEME_API_URL, $slug ); |
| 101 | |
| 102 | $theme = $this->cache->run_cached( |
| 103 | 'wpcom-themes-' . $slug, |
| 104 | fn() => $this->handle_request( $url ) |
| 105 | ); |
| 106 | |
| 107 | if ( ! $theme || isset( $theme->error ) ) { |
| 108 | return null; |
| 109 | } |
| 110 | |
| 111 | return $theme; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Returns the collection of the recommended WP.com themes. |
| 116 | * |
| 117 | * @return array<stdClass> An array with all the recommended WPCom themes. |
| 118 | */ |
| 119 | public function fetch_recommended_themes(): array { |
| 120 | return $this->fetch_themes( |
| 121 | 'wpcom-themes-recommended', |
| 122 | array( 'collection' => 'recommended' ) |
| 123 | ); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Returns the WP.com themes that match the given search term. |
| 128 | * |
| 129 | * @param string $search Search term. |
| 130 | * |
| 131 | * @return array<stdClass> An array with all the matching WPCom themes. |
| 132 | */ |
| 133 | public function search_themes( string $search ): array { |
| 134 | return $this->fetch_themes( |
| 135 | 'wpcom-themes-search-' . md5( $search ), |
| 136 | array( |
| 137 | 'search' => $search, |
| 138 | 'sort' => 'date', |
| 139 | ) |
| 140 | ); |
| 141 | } |
| 142 | } |