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| 1 | <?php |
| 2 | namespace Automattic\Jetpack_Boost\Data_Sync; |
| 3 | |
| 4 | use Automattic\Jetpack\Boost_Core\Lib\Transient; |
| 5 | use Automattic\Jetpack\Boost_Speed_Score\Speed_Score_Graph_History_Request; |
| 6 | use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Entry_Can_Get; |
| 7 | use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Entry_Can_Set; |
| 8 | use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Lazy_Entry; |
| 9 | use Automattic\Jetpack_Boost\Admin\Admin; |
| 10 | use Automattic\Jetpack_Boost\Lib\Connection; |
| 11 | |
| 12 | class Performance_History_Entry implements Lazy_Entry, Entry_Can_Get, Entry_Can_Set { |
| 13 | /** |
| 14 | * How many older windows one request may ask about. Kept in step with |
| 15 | * olderWindowLimit in _inc/overview/lib/use-history-range.ts. |
| 16 | */ |
| 17 | private const OLDER_WINDOW_LIMIT = 6; |
| 18 | |
| 19 | /** |
| 20 | * Daily recording only lands scores in windows that end today, so an older window keeps |
| 21 | * whatever it holds until this expiry passes or Connection::register() clears the cache. |
| 22 | */ |
| 23 | private const OLDER_WINDOW_TTL = 12 * 60 * 60; |
| 24 | |
| 25 | private const CACHE_PREFIX = 'older_history_'; |
| 26 | |
| 27 | private $start_date; |
| 28 | private $end_date; |
| 29 | private $surface_errors = false; |
| 30 | private $older_windows = array(); |
| 31 | |
| 32 | public function __construct() { |
| 33 | // Default to the last 30 days |
| 34 | $this->start_date = ( time() - 60 * 60 * 24 * 30 ) * 1000; |
| 35 | $this->end_date = time() * 1000; |
| 36 | } |
| 37 | |
| 38 | public function get( $_fallback = false ) { |
| 39 | if ( $this->older_windows ) { |
| 40 | return $this->get_older_history(); |
| 41 | } |
| 42 | |
| 43 | $request = new Speed_Score_Graph_History_Request( $this->start_date, $this->end_date, array() ); |
| 44 | $result = $request->execute(); |
| 45 | |
| 46 | /** This filter is documented in app/admin/class-admin.php */ |
| 47 | if ( is_wp_error( $result ) && $this->surface_errors && apply_filters( Admin::MODERNIZATION_FILTER, true ) ) { |
| 48 | throw new \RuntimeException( $result->get_error_message() ); |
| 49 | } |
| 50 | |
| 51 | if ( is_wp_error( $result ) || empty( $result['data'] ) ) { |
| 52 | return array( |
| 53 | 'startDate' => $this->start_date, |
| 54 | 'endDate' => $this->end_date, |
| 55 | 'periods' => array(), |
| 56 | 'annotations' => array(), |
| 57 | ); |
| 58 | } |
| 59 | |
| 60 | $annotations = $result['data']['annotations'] ?? array(); |
| 61 | // Sanitize the annotations |
| 62 | foreach ( $annotations as $key => $annotation ) { |
| 63 | $annotations[ $key ] = array( |
| 64 | 'timestamp' => $annotation['timestamp'], |
| 65 | 'text' => wp_kses_post( $annotation['text'] ), |
| 66 | ); |
| 67 | } |
| 68 | |
| 69 | return array( |
| 70 | 'startDate' => $result['data']['_meta']['start'], |
| 71 | 'endDate' => $result['data']['_meta']['end'], |
| 72 | 'periods' => $result['data']['periods'], |
| 73 | 'annotations' => $annotations, |
| 74 | ); |
| 75 | } |
| 76 | |
| 77 | private function get_older_history() { |
| 78 | $history = array( |
| 79 | 'startDate' => $this->start_date, |
| 80 | 'endDate' => $this->end_date, |
| 81 | 'periods' => array(), |
| 82 | 'annotations' => array(), |
| 83 | ); |
| 84 | |
| 85 | foreach ( $this->older_windows as $window ) { |
| 86 | $periods = $this->get_older_window_periods( $window ); |
| 87 | if ( $periods ) { |
| 88 | $history['periods'] = $periods; |
| 89 | break; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | return $history; |
| 94 | } |
| 95 | |
| 96 | private function get_older_window_periods( $window ) { |
| 97 | $cache_key = self::CACHE_PREFIX . md5( wp_json_encode( array( Connection::wpcom_blog_id(), $window ), JSON_UNESCAPED_SLASHES ) ); |
| 98 | $cached = Transient::get( $cache_key ); |
| 99 | if ( null !== $cached ) { |
| 100 | return $cached; |
| 101 | } |
| 102 | |
| 103 | $request = new Speed_Score_Graph_History_Request( $window['startDate'], $window['endDate'], array() ); |
| 104 | $result = $request->execute(); |
| 105 | if ( is_wp_error( $result ) ) { |
| 106 | throw new \RuntimeException( $result->get_error_message() ); |
| 107 | } |
| 108 | |
| 109 | // A response without history reads as an empty window, matching the single-window path above. |
| 110 | $data = $result['data'] ?? array(); |
| 111 | if ( ! is_array( $data ) || ( array() !== $data && ! isset( $data['periods'] ) ) ) { |
| 112 | throw new \RuntimeException( 'Invalid performance history response.' ); |
| 113 | } |
| 114 | $periods = $data['periods'] ?? array(); |
| 115 | if ( ! is_array( $periods ) ) { |
| 116 | throw new \RuntimeException( 'Invalid performance history periods.' ); |
| 117 | } |
| 118 | |
| 119 | $found = array(); |
| 120 | foreach ( $periods as $period ) { |
| 121 | if ( ! isset( $period['timestamp'] ) || ! is_numeric( $period['timestamp'] ) ) { |
| 122 | throw new \RuntimeException( 'Invalid performance history timestamp.' ); |
| 123 | } |
| 124 | if ( $period['timestamp'] >= $window['startDate'] && $period['timestamp'] <= $window['endDate'] ) { |
| 125 | $found[] = $period; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | Transient::set( $cache_key, $found, self::OLDER_WINDOW_TTL ); |
| 130 | return $found; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Forget every cached older window, for when registering the site alters what history exists. |
| 135 | */ |
| 136 | public static function clear_cache() { |
| 137 | Transient::delete_by_prefix( self::CACHE_PREFIX ); |
| 138 | } |
| 139 | |
| 140 | public function set( $value ) { |
| 141 | $older_windows = $value['olderWindows'] ?? array(); |
| 142 | if ( true === ( $value['checkOlderWindows'] ?? false ) && ! $older_windows ) { |
| 143 | throw new \RuntimeException( 'Older history windows are missing or malformed.' ); |
| 144 | } |
| 145 | if ( count( $older_windows ) > self::OLDER_WINDOW_LIMIT ) { |
| 146 | throw new \RuntimeException( 'At most ' . self::OLDER_WINDOW_LIMIT . ' older history windows are supported.' ); |
| 147 | } |
| 148 | |
| 149 | $this->start_date = $value['startDate']; |
| 150 | $this->end_date = $value['endDate']; |
| 151 | $this->surface_errors = true === ( $value['surfaceErrors'] ?? false ); |
| 152 | $this->older_windows = $older_windows; |
| 153 | } |
| 154 | } |