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1 year ago
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AssetsDependencyInjector.php
3 years ago
Config.php
3 years ago
FileLog.php
2 years ago
Flags.php
2 years ago
GoogleFontsLocalLoader.php
2 years ago
GutenbergControls.php
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Migrations.php
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PluginsManager.php
2 years ago
GoogleFontsLocalLoader.php
508 lines
| 1 | <?php |
| 2 | |
| 3 | namespace Kubio; |
| 4 | |
| 5 | use IlluminateAgnostic\Arr\Support\Arr; |
| 6 | use Kubio\Core\StyleManager\Utils as StyleManagerUtils; |
| 7 | use Kubio\Core\Registry; |
| 8 | use Kubio\Core\Utils; |
| 9 | |
| 10 | class GoogleFontsLocalLoader { |
| 11 | |
| 12 | private static $instance = null; |
| 13 | |
| 14 | private $queries_transient = 'kubio_local_google_queries_transient'; |
| 15 | private $font_file_action = 'kubio_get_google_font_file'; |
| 16 | private $fonts_css_action = 'kubio_get_google_font_css'; |
| 17 | |
| 18 | private $uploads_dir = 'kubio-google-fonts-cache'; |
| 19 | |
| 20 | private $google_css_url = 'https://fonts.googleapis.com/css'; |
| 21 | private $google_font_url = 'https://fonts.gstatic.com/s'; |
| 22 | private $user_agent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0'; |
| 23 | |
| 24 | private $local_fonts_dir; |
| 25 | private $local_fonts_url; |
| 26 | |
| 27 | |
| 28 | /** |
| 29 | * |
| 30 | * @return GoogleFontsLocalLoader |
| 31 | */ |
| 32 | public static function getInstance() { |
| 33 | if ( ! static::$instance ) { |
| 34 | static::$instance = new static(); |
| 35 | } |
| 36 | |
| 37 | return static::$instance; |
| 38 | } |
| 39 | |
| 40 | public function __construct() { |
| 41 | |
| 42 | $upload_dir = wp_upload_dir(); |
| 43 | $upload_path = untrailingslashit( $upload_dir['basedir'] ); |
| 44 | |
| 45 | $this->local_fonts_dir = "{$upload_path}/{$this->uploads_dir}"; |
| 46 | $this->local_fonts_url = "{$upload_dir['baseurl']}/{$this->uploads_dir}"; |
| 47 | |
| 48 | if ( ! file_exists( $this->local_fonts_dir ) ) { |
| 49 | mkdir( $this->local_fonts_dir, 0777, true ); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | |
| 54 | public function resolveFontsCSS() { |
| 55 | $action = Arr::get( $_REQUEST, 'action' ); |
| 56 | |
| 57 | if ( $action !== $this->fonts_css_action ) { |
| 58 | return; |
| 59 | } |
| 60 | |
| 61 | header( 'Content-type: text/css' ); |
| 62 | header( 'Cache-control: public' ); |
| 63 | |
| 64 | $key = sanitize_key( Arr::get( $_REQUEST, 'key', '' ) ); |
| 65 | $cached = $this->getCachedDataByKey( $key ); |
| 66 | |
| 67 | if ( ! $cached ) { |
| 68 | die( '' ); |
| 69 | } |
| 70 | |
| 71 | $query = Arr::get( $cached, 'query' ); |
| 72 | $css = Arr::get( $cached, 'css' ); |
| 73 | |
| 74 | if ( ! $css ) { |
| 75 | $css = $this->getCSS( $query ); |
| 76 | $this->cacheQueryCSS( $query, $css ); |
| 77 | } |
| 78 | |
| 79 | $css = $this->replacePlaceholdersWithLocalCSS( $css ); |
| 80 | |
| 81 | if ( Utils::isDebug() ) { |
| 82 | $css = "/* {$this->google_css_url}?family={$query} */\n\n{$css}"; |
| 83 | } |
| 84 | |
| 85 | die( $css ); |
| 86 | |
| 87 | } |
| 88 | |
| 89 | private function getCSS( $query, $replace_urls = true ) { |
| 90 | $fonts_url = add_query_arg( |
| 91 | array( |
| 92 | 'family' => urlencode( $query ), |
| 93 | 'display' => 'swap', |
| 94 | ), |
| 95 | $this->google_css_url |
| 96 | ); |
| 97 | |
| 98 | $response = wp_remote_get( |
| 99 | $fonts_url, |
| 100 | array( |
| 101 | 'user-agent' => $this->user_agent, |
| 102 | ) |
| 103 | ); |
| 104 | |
| 105 | if ( is_wp_error( $response ) ) { |
| 106 | return null; |
| 107 | } |
| 108 | |
| 109 | if ( wp_remote_retrieve_response_code( $response ) !== 200 ) { |
| 110 | return null; |
| 111 | } |
| 112 | |
| 113 | $css = wp_remote_retrieve_body( $response ); |
| 114 | |
| 115 | if ( $replace_urls ) { |
| 116 | $css = $this->replaceGoogleURLS( $css ); |
| 117 | } |
| 118 | |
| 119 | return $css; |
| 120 | } |
| 121 | |
| 122 | private function replaceGoogleURLS( $css ) { |
| 123 | |
| 124 | $google_font_url = $this->google_font_url; |
| 125 | $css = preg_replace_callback( |
| 126 | '#url\((.*?)\)#', |
| 127 | function( $matches ) use ( $google_font_url ) { |
| 128 | $url = str_replace( $google_font_url, '', Arr::get( $matches, 1, '' ) ); |
| 129 | |
| 130 | return "url({{{{$url}}}})"; |
| 131 | }, |
| 132 | $css |
| 133 | ); |
| 134 | |
| 135 | return $css; |
| 136 | } |
| 137 | |
| 138 | public function getLocalFontFilePath( $font_file ) { |
| 139 | $file_key = md5( $font_file ); |
| 140 | return "{$this->local_fonts_dir}/{$file_key}.woff2"; |
| 141 | } |
| 142 | |
| 143 | public function getLocalFontFileURL( $font_file ) { |
| 144 | $file_key = md5( $font_file ); |
| 145 | return "{$this->local_fonts_url}/{$file_key}.woff2"; |
| 146 | } |
| 147 | |
| 148 | public function saveFontContentToLocalFile( $font_file, $content ) { |
| 149 | $path = $this->getLocalFontFilePath( $font_file ); |
| 150 | return file_put_contents( $path, $content ); |
| 151 | } |
| 152 | |
| 153 | public function localFontFileExists( $font_file ) { |
| 154 | return file_exists( $this->getLocalFontFilePath( $font_file ) ); |
| 155 | } |
| 156 | |
| 157 | private function replacePlaceholdersWithLocalCSS( $css ) { |
| 158 | $self = $this; |
| 159 | $action = $this->font_file_action; |
| 160 | |
| 161 | $css = preg_replace_callback( |
| 162 | '#url\(\{\{\{(.*?)\}\}\}\)#', |
| 163 | function( $matches ) use ( $self, $action ) { |
| 164 | $font_file = Arr::get( $matches, 1, '' ); |
| 165 | |
| 166 | if ( $self->localFontFileExists( $font_file ) ) { |
| 167 | |
| 168 | $url = $self->getLocalFontFileURL( $font_file ); |
| 169 | } else { |
| 170 | $url = add_query_arg( |
| 171 | array( |
| 172 | 'font' => urlencode( $font_file ), |
| 173 | 'action' => $action, |
| 174 | 'security' => $self->createSecurityKey( "{$action}_{$font_file}" ), |
| 175 | ), |
| 176 | admin_url( 'admin-ajax.php' ) |
| 177 | ); |
| 178 | } |
| 179 | |
| 180 | return "url({$url})"; |
| 181 | }, |
| 182 | $css |
| 183 | ); |
| 184 | |
| 185 | return $css; |
| 186 | |
| 187 | } |
| 188 | |
| 189 | public function getCachedDataByKey( $key ) { |
| 190 | $transient = get_transient( $this->queries_transient ); |
| 191 | if ( ! is_array( $transient ) ) { |
| 192 | return null; |
| 193 | } |
| 194 | return Arr::get( $transient, $key ); |
| 195 | } |
| 196 | |
| 197 | public function getCachedQueryData( $query ) { |
| 198 | return $this->getCachedDataByKey( md5( $query ) ); |
| 199 | } |
| 200 | |
| 201 | public function cacheQueryCSS( $query, $css ) { |
| 202 | |
| 203 | $transient = get_transient( $this->queries_transient ); |
| 204 | if ( ! is_array( $transient ) ) { |
| 205 | $transient = array(); |
| 206 | } |
| 207 | |
| 208 | Arr::set( |
| 209 | $transient, |
| 210 | md5( $query ), |
| 211 | array( |
| 212 | 'query' => $query, |
| 213 | 'css' => $css, |
| 214 | ) |
| 215 | ); |
| 216 | |
| 217 | set_transient( $this->queries_transient, $transient ); |
| 218 | } |
| 219 | |
| 220 | public function addQueryToCache( $query ) { |
| 221 | $transient = get_transient( $this->queries_transient ); |
| 222 | if ( ! is_array( $transient ) ) { |
| 223 | $transient = array(); |
| 224 | } |
| 225 | |
| 226 | $key = md5( $query ); |
| 227 | |
| 228 | if ( isset( $transient[ $key ] ) ) { |
| 229 | return; |
| 230 | } |
| 231 | |
| 232 | Arr::set( |
| 233 | $transient, |
| 234 | $key, |
| 235 | array( |
| 236 | 'query' => $query, |
| 237 | ) |
| 238 | ); |
| 239 | set_transient( $this->queries_transient, $transient ); |
| 240 | } |
| 241 | |
| 242 | |
| 243 | public function enqueueFonts( $query ) { |
| 244 | $cached = $this->getCachedQueryData( $query ); |
| 245 | if ( ! $cached ) { |
| 246 | $this->addQueryToCache( |
| 247 | $query, |
| 248 | array( |
| 249 | 'query' => $query, |
| 250 | ) |
| 251 | ); |
| 252 | } |
| 253 | |
| 254 | wp_enqueue_style( |
| 255 | 'kubio-local-google-fonts', |
| 256 | add_query_arg( |
| 257 | array( |
| 258 | 'action' => $this->fonts_css_action, |
| 259 | 'key' => md5( $query ), |
| 260 | ), |
| 261 | site_url() |
| 262 | ) |
| 263 | ); |
| 264 | } |
| 265 | |
| 266 | public function getFontsQuery( $withGeneralSettings = true ) { |
| 267 | |
| 268 | $fonts = array(); |
| 269 | |
| 270 | if ( $withGeneralSettings ) { |
| 271 | // get global google fonts |
| 272 | $fonts = \kubio_get_global_data( 'fonts.google', array() ); |
| 273 | } |
| 274 | |
| 275 | // add current rendered fonts variants |
| 276 | $rendered_fonts = Registry::getInstance()->getRenderedFonts(); |
| 277 | foreach ( $rendered_fonts as $family => $variants ) { |
| 278 | $fonts[] = array( |
| 279 | 'family' => $family, |
| 280 | 'variants' => $variants, |
| 281 | ); |
| 282 | } |
| 283 | |
| 284 | $fonts = apply_filters( 'kubio/google_fonts', $fonts ); |
| 285 | |
| 286 | if ( ! count( $fonts ) ) { |
| 287 | return null; |
| 288 | } |
| 289 | |
| 290 | // merge fonts by family |
| 291 | $mapped_fonts = array(); |
| 292 | foreach ( $fonts as $font_data ) { |
| 293 | $family = $font_data['family']; |
| 294 | $mapped_fonts[ $family ] = isset( $mapped_fonts[ $family ] ) ? $mapped_fonts[ $family ] : array(); |
| 295 | $mapped_fonts[ $family ] = array_merge( $mapped_fonts[ $family ], $font_data['variants'] ); |
| 296 | |
| 297 | } |
| 298 | |
| 299 | // build fonts query |
| 300 | $groups = array(); |
| 301 | foreach ( $mapped_fonts as $family => $weights ) { |
| 302 | |
| 303 | // add the default if necessary 400 and normailize weights array - ensure proper caching by sorting the weights and removing duplicates |
| 304 | $groups[] = $family . ':' . implode( ',', StyleManagerUtils::normalizeFontWeights( $weights ) ); |
| 305 | } |
| 306 | $fonts_query = implode( '|', $groups ); |
| 307 | |
| 308 | return $fonts_query; |
| 309 | } |
| 310 | |
| 311 | public function getFontsMap( $query, $subset = 'latin' ) { |
| 312 | |
| 313 | $css = $this->getCSS( $query, false ); |
| 314 | |
| 315 | if ( $subset === 'all' ) { |
| 316 | $subset_regex = '/\/\*([^*\/]*)\*\//i'; |
| 317 | preg_match_all( $subset_regex, $css, $matches, PREG_SET_ORDER ); |
| 318 | $subsets_list = array(); |
| 319 | foreach ( $matches as $match ) { |
| 320 | $current_subset = trim( $match[1] ); |
| 321 | if ( ! in_array( $current_subset, $subsets_list ) ) { |
| 322 | $subsets_list[] = $current_subset; |
| 323 | } |
| 324 | } |
| 325 | $all_fonts = array(); |
| 326 | foreach ( $subsets_list as $subset_item ) { |
| 327 | $fonts = $this->getFontsMap( $query, $subset_item ); |
| 328 | $all_fonts = array_merge( $all_fonts, $fonts ); |
| 329 | } |
| 330 | |
| 331 | //sorts fonts faces |
| 332 | usort( |
| 333 | $all_fonts, |
| 334 | function( $a, $b ) { |
| 335 | return array( $a['font-family'], $a['font-style'], $a['font-weight'], $a['subset'] ) |
| 336 | <=> |
| 337 | array( $b['font-family'], $b['font-style'], $b['font-weight'], $b['subset'] ); |
| 338 | } |
| 339 | ); |
| 340 | return $all_fonts; |
| 341 | } |
| 342 | |
| 343 | // prepare subset |
| 344 | $css = preg_replace( '#/\*\s+?(' . $subset . ")\s+?\*/(.*\n?)@font-face#", 'is_subset_match', $css ); |
| 345 | |
| 346 | // remove comments |
| 347 | $css = preg_replace( '#/\*(.*?)\*/#', '', $css ); |
| 348 | $css = preg_replace( '#format\((.*?)\)#', '', $css ); |
| 349 | $css = preg_replace( '#url\(https://(.*?)\)#', '$1', $css ); |
| 350 | |
| 351 | $re = '/is_subset_match.*{\K[^}]*(?=})/'; |
| 352 | preg_match_all( $re, $css, $matches, PREG_SET_ORDER ); |
| 353 | |
| 354 | $parsed = array(); |
| 355 | $keys = array( 'font-family', 'src', 'font-style', 'font-weight', 'unicode-range' ); |
| 356 | if ( $matches ) { |
| 357 | |
| 358 | foreach ( $matches as $k => $ff ) { |
| 359 | |
| 360 | $css = $ff[0]; |
| 361 | $attrs = explode( ';', $css ); |
| 362 | |
| 363 | $props = array(); |
| 364 | foreach ( $attrs as $attr ) { |
| 365 | if ( strlen( trim( $attr ) ) > 0 ) { |
| 366 | $pair = explode( ':', trim( $attr ) ); |
| 367 | if ( in_array( $pair[0], $keys ) ) { |
| 368 | $value = trim( $pair[1] ); |
| 369 | |
| 370 | if ( $pair[0] === 'font-family' ) { |
| 371 | $value = str_replace( "'", '', $value ); |
| 372 | } |
| 373 | |
| 374 | if ( $pair[0] === 'font-weight' ) { |
| 375 | $value = intval( $value ); |
| 376 | } |
| 377 | |
| 378 | if ( $pair[0] === 'src' ) { |
| 379 | $value = "https://{$value}"; |
| 380 | } |
| 381 | |
| 382 | $props[ trim( $pair[0] ) ] = $value; |
| 383 | } |
| 384 | } |
| 385 | } |
| 386 | $props['subset'] = $subset; |
| 387 | $parsed[ $k ] = $props; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | return $parsed; |
| 392 | } |
| 393 | |
| 394 | public function resolveFont() { |
| 395 | |
| 396 | $font_file = sanitize_text_field( Arr::get( $_REQUEST, 'font', '' ) ); |
| 397 | $security_key = sanitize_text_field( Arr::get( $_REQUEST, 'security', '' ) ); |
| 398 | |
| 399 | $valid_nonce = $this->verifySecurityKey( $security_key, "{$this->font_file_action}_{$font_file}" ); |
| 400 | |
| 401 | if ( ! $valid_nonce ) { |
| 402 | wp_die( __( 'Frobidden', 'kubio' ), 403 ); |
| 403 | } |
| 404 | |
| 405 | $content = $this->resolveFontFileContent( $font_file ); |
| 406 | |
| 407 | if ( is_wp_error( $content ) ) { |
| 408 | wp_die( $content, 404 ); |
| 409 | } |
| 410 | |
| 411 | $this_year = strtotime( date( 'Y' ) . '-01-01' ); |
| 412 | header( 'Content-type: font/woff2' ); |
| 413 | header( 'Cache-control: public' ); |
| 414 | header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s', $this_year ) . ' GMT' ); |
| 415 | header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', $this_year + YEAR_IN_SECONDS ) . ' GMT' ); |
| 416 | header( 'Etag: ' . md5( base64_encode( $content ) ) ); |
| 417 | |
| 418 | die( $content ); |
| 419 | } |
| 420 | |
| 421 | private function resolveFontFileContent( $font_file ) { |
| 422 | if ( $this->localFontFileExists( $font_file ) ) { |
| 423 | return file_get_contents( $this->getLocalFontFilePath( $font_file ) ); |
| 424 | } |
| 425 | |
| 426 | if ( ! is_writable( $this->local_fonts_dir ) ) { |
| 427 | return new \WP_Error( 'folder_not_writable' ); |
| 428 | } |
| 429 | |
| 430 | $google_font_url = "{$this->google_font_url}/{$font_file}"; |
| 431 | |
| 432 | $reponse = wp_remote_get( $google_font_url ); |
| 433 | if ( is_wp_error( $reponse ) ) { |
| 434 | return new \WP_Error( 'could_not_retrieve_url' ); |
| 435 | } |
| 436 | |
| 437 | $content = wp_remote_retrieve_body( $reponse ); |
| 438 | |
| 439 | $this->saveFontContentToLocalFile( $font_file, $content ); |
| 440 | |
| 441 | return $content; |
| 442 | |
| 443 | } |
| 444 | |
| 445 | private function getSecuritySalt() { |
| 446 | if ( defined( 'NONCE_KEY' ) ) { |
| 447 | return NONCE_KEY; |
| 448 | } |
| 449 | |
| 450 | if ( define( 'SECURE_AUTH_KEY' ) ) { |
| 451 | return SECURE_AUTH_KEY; |
| 452 | } |
| 453 | |
| 454 | if ( define( 'AUTH_KEY' ) ) { |
| 455 | return AUTH_KEY; |
| 456 | } |
| 457 | |
| 458 | if ( define( 'SECURE_AUTH_SALT' ) ) { |
| 459 | return SECURE_AUTH_SALT; |
| 460 | } |
| 461 | |
| 462 | if ( define( 'AUTH_SALT' ) ) { |
| 463 | return AUTH_SALT; |
| 464 | } |
| 465 | |
| 466 | $pro_activation_time = Flags::get( 'kubio_pro_activation_time' ); |
| 467 | |
| 468 | if ( $pro_activation_time ) { |
| 469 | return $pro_activation_time; |
| 470 | } |
| 471 | |
| 472 | $activation_time = Flags::get( 'kubio_activation_time' ); |
| 473 | |
| 474 | if ( $activation_time ) { |
| 475 | return $activation_time; |
| 476 | } |
| 477 | |
| 478 | return uniqid( time() ); |
| 479 | } |
| 480 | |
| 481 | public function createSecurityKey( $action ) { |
| 482 | return wp_hash( $this->getSecuritySalt() . '|' . $action ); |
| 483 | } |
| 484 | |
| 485 | public function verifySecurityKey( $nonce, $action ) { |
| 486 | return $nonce === $this->createSecurityKey( $action ); |
| 487 | } |
| 488 | |
| 489 | |
| 490 | public function addAdminAjaxActions() { |
| 491 | add_action( "wp_ajax_{$this->font_file_action}", array( $this, 'resolveFont' ) ); |
| 492 | add_action( "wp_ajax_nopriv_{$this->font_file_action}", array( $this, 'resolveFont' ) ); |
| 493 | |
| 494 | add_action( 'plugins_loaded', array( $this, 'resolveFontsCSS' ) ); |
| 495 | |
| 496 | } |
| 497 | |
| 498 | public static function enqueuLocalGoogleFonts( $fonts_query ) { |
| 499 | return GoogleFontsLocalLoader::getInstance()->enqueueFonts( $fonts_query ); |
| 500 | } |
| 501 | |
| 502 | |
| 503 | public static function registerFontResolver() { |
| 504 | return GoogleFontsLocalLoader::getInstance()->addAdminAjaxActions(); |
| 505 | } |
| 506 | |
| 507 | } |
| 508 |