class-wikimedia.php
272 lines
| 1 | <?php |
| 2 | if ( ! defined( 'ABSPATH' ) ) |
| 3 | exit; |
| 4 | |
| 5 | /** |
| 6 | * Responsive Lightbox Remote Library Wikimedia class. |
| 7 | * |
| 8 | * Library: https://commons.wikimedia.org |
| 9 | * API: https://commons.wikimedia.org/w/api.php?action=help&modules=query%2Ballimages |
| 10 | * |
| 11 | * @class Responsive_Lightbox_Remote_Library_Wikimedia |
| 12 | */ |
| 13 | class Responsive_Lightbox_Remote_Library_Wikimedia extends Responsive_Lightbox_Remote_Library_API { |
| 14 | |
| 15 | /** |
| 16 | * Class constructor. |
| 17 | * |
| 18 | * @return void |
| 19 | */ |
| 20 | public function __construct() { |
| 21 | // provider slug |
| 22 | $this->slug = 'wikimedia'; |
| 23 | |
| 24 | // provider name |
| 25 | $this->name = __( 'Wikimedia', 'responsive-lightbox' ); |
| 26 | |
| 27 | // default values |
| 28 | $this->defaults = [ |
| 29 | 'active' => false |
| 30 | ]; |
| 31 | |
| 32 | // setting fields |
| 33 | $this->fields = [ |
| 34 | 'title' => $this->name, |
| 35 | 'section' => 'responsive_lightbox_remote_library_providers', |
| 36 | 'type' => 'custom', |
| 37 | 'callback' => [ $this, 'render_field' ] |
| 38 | ]; |
| 39 | |
| 40 | // response data |
| 41 | $this->response_data_args = [ |
| 42 | 'continue' |
| 43 | ]; |
| 44 | |
| 45 | // add provider |
| 46 | parent::add_provider( $this ); |
| 47 | |
| 48 | // handle last page |
| 49 | add_filter( 'rl_remote_library_query_last_page', [ $this, 'handle_last_page' ], 10, 3 ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Render field. |
| 54 | * |
| 55 | * @return string |
| 56 | */ |
| 57 | public function render_field() { |
| 58 | return ' |
| 59 | <p><label><input id="rl_wikimedia_active" type="checkbox" name="responsive_lightbox_remote_library[wikimedia][active]" value="1" ' . checked( $this->rl->options['remote_library']['wikimedia']['active'], true, false ) . ' />' . esc_html__( 'Enable Wikimedia.', 'responsive-lightbox' ) . '</label></p>'; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Validate settings. |
| 64 | * |
| 65 | * @param array $input POST data |
| 66 | * @return array |
| 67 | */ |
| 68 | public function validate_settings( $input ) { |
| 69 | if ( ! isset( $_POST['responsive_lightbox_remote_library'] ) ) |
| 70 | $input['wikimedia'] = $this->rl->defaults['remote_library']['wikimedia']; |
| 71 | else { |
| 72 | // active |
| 73 | $input['wikimedia']['active'] = isset( $_POST['responsive_lightbox_remote_library']['wikimedia']['active'] ); |
| 74 | } |
| 75 | |
| 76 | return $input; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Prepare data to run remote query. |
| 81 | * |
| 82 | * @param string $search_phrase Search phrase |
| 83 | * @param array $args Provider arguments |
| 84 | * @return void |
| 85 | */ |
| 86 | public function prepare_query( $search_phrase, $args = [] ) { |
| 87 | // check page parameter |
| 88 | if ( isset( $args['preview_page'] ) ) |
| 89 | $args['preview_page'] = (int) $args['preview_page']; |
| 90 | else |
| 91 | $args['preview_page'] = 1; |
| 92 | |
| 93 | if ( $args['preview_page'] < 1 ) |
| 94 | $args['preview_page'] = 1; |
| 95 | |
| 96 | // check limit |
| 97 | if ( isset( $args['limit'] ) && ( $limit = (int) $args['limit'] ) > 0 ) |
| 98 | $args['preview_per_page'] = $limit; |
| 99 | else { |
| 100 | // check per page parameter |
| 101 | if ( isset( $args['preview_per_page'] ) ) |
| 102 | $args['preview_per_page'] = (int) $args['preview_per_page']; |
| 103 | else |
| 104 | $args['preview_per_page'] = 20; |
| 105 | |
| 106 | if ( $args['preview_per_page'] < 5 || $args['preview_per_page'] > 200 ) |
| 107 | $args['preview_per_page'] = 20; |
| 108 | } |
| 109 | |
| 110 | // set query arguments |
| 111 | $this->query_args = $args; |
| 112 | |
| 113 | $query_args = [ |
| 114 | 'action' => 'query', |
| 115 | 'format' => 'json', |
| 116 | 'list' => 'allimages', |
| 117 | 'aiprefix' => urlencode( $search_phrase ), |
| 118 | 'ailimit' => $args['preview_per_page'], |
| 119 | 'aisort' => 'name', |
| 120 | 'aidir' => 'ascending', |
| 121 | 'aiprop' => 'url|size|extmetadata|dimensions' |
| 122 | ]; |
| 123 | |
| 124 | if ( isset( $args['response_data']['wikimedia']['continue']['aicontinue'] ) ) |
| 125 | $query_args['aicontinue'] = $args['response_data']['wikimedia']['continue']['aicontinue']; |
| 126 | |
| 127 | // set query string |
| 128 | $this->query = add_query_arg( $query_args, 'https://commons.wikimedia.org/w/api.php' ); |
| 129 | |
| 130 | // set query remote arguments |
| 131 | $this->query_remote_args = [ |
| 132 | 'timeout' => 30, |
| 133 | 'headers' => [ |
| 134 | 'User-Agent' => __( 'Responsive Lightbox', 'responsive-lightbox' ) . ' ' . $this->rl->defaults['version'] |
| 135 | ] |
| 136 | ]; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Get images from media provider. |
| 141 | * |
| 142 | * @param mixed $response Remote response |
| 143 | * @param array $args Query arguments |
| 144 | * @return array|WP_Error |
| 145 | */ |
| 146 | public function get_query_results( $response, $args = [] ) { |
| 147 | $results = []; |
| 148 | $error = new WP_Error( 'rl_remote_library_wikimedia_get_query_results', __( 'Parsing request error', 'responsive-lightbox' ) ); |
| 149 | |
| 150 | // retrieve body |
| 151 | $response_body = wp_remote_retrieve_body( $response ); |
| 152 | |
| 153 | // any data? |
| 154 | if ( $response_body !== '' ) { |
| 155 | $response_json = json_decode( $response_body, true ); |
| 156 | |
| 157 | // invalid data? |
| 158 | if ( $response_json === null || ( isset( $response_json['success'] ) && $response_json['success'] === false ) ) |
| 159 | $results = $error; |
| 160 | else { |
| 161 | // set response data |
| 162 | $this->response_data = $response_json; |
| 163 | |
| 164 | // get results |
| 165 | $results = isset( $response_json['query'] ) && is_array( $response_json['query'] ) && isset( $response_json['query']['allimages'] ) && is_array( $response_json['query']['allimages'] ) ? $response_json['query']['allimages'] : []; |
| 166 | |
| 167 | // sanitize images |
| 168 | $results = $this->sanitize_results( $results ); |
| 169 | } |
| 170 | } else |
| 171 | $results = $error; |
| 172 | |
| 173 | return $results; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Handle query last page. |
| 178 | * |
| 179 | * @param bool $last Whether is it last page |
| 180 | * @param array $result Query result |
| 181 | * @param array $args Query arguments |
| 182 | * @return bool |
| 183 | */ |
| 184 | public function handle_last_page( $last, $result, $args ) { |
| 185 | if ( $args['media_provider'] === 'wikimedia' && empty( $result['data']['wikimedia']['continue'] ) ) |
| 186 | return true; |
| 187 | |
| 188 | return $last; |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Sanitize single result. |
| 193 | * |
| 194 | * @param array $result Single result |
| 195 | * @return array|false |
| 196 | */ |
| 197 | public function sanitize_result( $result ) { |
| 198 | // allow only jpg, png and gif images |
| 199 | if ( preg_match( '/\.(jpe?g|gif|png)$/i', $result['url'] ) !== 1 ) |
| 200 | return false; |
| 201 | |
| 202 | // get part of an url |
| 203 | $url = explode( 'https://upload.wikimedia.org/wikipedia/commons/', $result['url'] ); |
| 204 | |
| 205 | // set dimensions |
| 206 | $width = (int) $result['width']; |
| 207 | $height = (int) $result['height']; |
| 208 | |
| 209 | // calculate ratio |
| 210 | $ratio = $width / $height; |
| 211 | |
| 212 | // try to get thumbnail url and dimensions |
| 213 | if ( ! empty( $url[1] ) ) { |
| 214 | $thumbnail_url = $result['url']; |
| 215 | $thumbnail_width = 0; |
| 216 | $thumbnail_height = 0; |
| 217 | |
| 218 | $name = explode( '/', $url[1] ); |
| 219 | |
| 220 | if ( ! empty( $name[2] ) ) { |
| 221 | // standard smallest size |
| 222 | $thumbnail_width = 240; |
| 223 | |
| 224 | // calculate new height based on original ratio |
| 225 | $thumbnail_height = (int) floor( $thumbnail_width / $ratio ); |
| 226 | |
| 227 | // use larger size if height is less than 150 pixels |
| 228 | if ( $thumbnail_height < 150 ) { |
| 229 | $thumbnail_width = 480; |
| 230 | |
| 231 | // calculate new height based on original ratio |
| 232 | $thumbnail_height = (int) floor( $thumbnail_width / $ratio ); |
| 233 | } |
| 234 | |
| 235 | $thumbnail_url = 'https://upload.wikimedia.org/wikipedia/commons/thumb/' . $url[1] . '/' . $thumbnail_width . 'px-' . $name[2]; |
| 236 | } |
| 237 | } else { |
| 238 | $thumbnail_url = $result['url']; |
| 239 | $thumbnail_width = $width; |
| 240 | $thumbnail_height = $height; |
| 241 | } |
| 242 | |
| 243 | $imagedata = [ |
| 244 | 'id' => 0, |
| 245 | 'link' => '', |
| 246 | 'source' => esc_url_raw( $result['descriptionshorturl'] ), |
| 247 | 'title' => sanitize_text_field( $result['title'] ), |
| 248 | 'caption' => $this->get_attribution( 'Wikimedia', $result['descriptionshorturl'] ), |
| 249 | 'description' => isset( $result['extmetadata']['ImageDescription']['value'] ) ? sanitize_text_field( $result['extmetadata']['ImageDescription']['value'] ) : '', |
| 250 | 'alt' => isset( $result['extmetadata']['Categories']['value'] ) ? str_replace( '|', ', ', sanitize_text_field( $result['extmetadata']['Categories']['value'] ) ) : '', |
| 251 | 'url' => esc_url_raw( $result['url'] ), |
| 252 | 'width' => $width, |
| 253 | 'height' => $height, |
| 254 | 'orientation' => $height > $width ? 'portrait' : 'landscape', |
| 255 | 'thumbnail_url' => esc_url_raw( $thumbnail_url ), |
| 256 | 'thumbnail_width' => $thumbnail_width, |
| 257 | 'thumbnail_height' => $thumbnail_height, |
| 258 | 'thumbnail_orientation' => $thumbnail_height > $thumbnail_width ? 'portrait' : 'landscape', |
| 259 | 'media_provider' => 'wikimedia', |
| 260 | 'filename' => sanitize_file_name( $result['name'] ), |
| 261 | 'dimensions' => $width . ' x ' . $height, |
| 262 | 'type' => 'image' |
| 263 | ]; |
| 264 | |
| 265 | // create thumbnail link |
| 266 | $imagedata['thumbnail_link'] = $this->rl->galleries->get_gallery_image_link( $imagedata, 'thumbnail' ); |
| 267 | |
| 268 | return $imagedata; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | new Responsive_Lightbox_Remote_Library_Wikimedia(); |