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1 <?php 2 /** 3 * Misc WordPress Administration API. 4 * 5 * @package WordPress 6 * @subpackage Administration 7 */ 8 9 /** 10 * Returns whether the server is running Apache with the mod_rewrite module loaded. 11 * 12 * @since 2.0.0 13 * 14 * @return bool Whether the server is running Apache with the mod_rewrite module loaded. 15 */ 16 function got_mod_rewrite() { 17 $got_rewrite = apache_mod_loaded( 'mod_rewrite', true ); 18 19 /** 20 * Filters whether Apache and mod_rewrite are present. 21 * 22 * This filter was previously used to force URL rewriting for other servers, 23 * like nginx. Use the {@see 'got_url_rewrite'} filter in got_url_rewrite() instead. 24 * 25 * @since 2.5.0 26 * 27 * @see got_url_rewrite() 28 * 29 * @param bool $got_rewrite Whether Apache and mod_rewrite are present. 30 */ 31 return apply_filters( 'got_rewrite', $got_rewrite ); 32 } 33 34 /** 35 * Returns whether the server supports URL rewriting. 36 * 37 * Detects Apache's mod_rewrite, IIS 7.0+ permalink support, and nginx. 38 * 39 * @since 3.7.0 40 * 41 * @global bool $is_nginx 42 * 43 * @return bool Whether the server supports URL rewriting. 44 */ 45 function got_url_rewrite() { 46 $got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || iis7_supports_permalinks() ); 47 48 /** 49 * Filters whether URL rewriting is available. 50 * 51 * @since 3.7.0 52 * 53 * @param bool $got_url_rewrite Whether URL rewriting is available. 54 */ 55 return apply_filters( 'got_url_rewrite', $got_url_rewrite ); 56 } 57 58 /** 59 * Extracts strings from between the BEGIN and END markers in the .htaccess file. 60 * 61 * @since 1.5.0 62 * 63 * @param string $filename Filename to extract the strings from. 64 * @param string $marker The marker to extract the strings from. 65 * @return string[] An array of strings from a file (.htaccess) from between BEGIN and END markers. 66 */ 67 function extract_from_markers( $filename, $marker ) { 68 $result = array(); 69 70 if ( ! file_exists( $filename ) ) { 71 return $result; 72 } 73 74 $markerdata = explode( "\n", implode( '', file( $filename ) ) ); 75 76 $state = false; 77 foreach ( $markerdata as $markerline ) { 78 if ( false !== strpos( $markerline, '# END ' . $marker ) ) { 79 $state = false; 80 } 81 if ( $state ) { 82 if ( '#' === substr( $markerline, 0, 1 ) ) { 83 continue; 84 } 85 $result[] = $markerline; 86 } 87 if ( false !== strpos( $markerline, '# BEGIN ' . $marker ) ) { 88 $state = true; 89 } 90 } 91 92 return $result; 93 } 94 95 /** 96 * Inserts an array of strings into a file (.htaccess), placing it between 97 * BEGIN and END markers. 98 * 99 * Replaces existing marked info. Retains surrounding 100 * data. Creates file if none exists. 101 * 102 * @since 1.5.0 103 * 104 * @param string $filename Filename to alter. 105 * @param string $marker The marker to alter. 106 * @param array|string $insertion The new content to insert. 107 * @return bool True on write success, false on failure. 108 */ 109 function insert_with_markers( $filename, $marker, $insertion ) { 110 if ( ! file_exists( $filename ) ) { 111 if ( ! is_writable( dirname( $filename ) ) ) { 112 return false; 113 } 114 115 if ( ! touch( $filename ) ) { 116 return false; 117 } 118 119 // Make sure the file is created with a minimum set of permissions. 120 $perms = fileperms( $filename ); 121 if ( $perms ) { 122 chmod( $filename, $perms | 0644 ); 123 } 124 } elseif ( ! is_writeable( $filename ) ) { 125 return false; 126 } 127 128 if ( ! is_array( $insertion ) ) { 129 $insertion = explode( "\n", $insertion ); 130 } 131 132 $switched_locale = switch_to_locale( get_locale() ); 133 134 $instructions = sprintf( 135 /* translators: 1: Marker. */ 136 __( 137 'The directives (lines) between "BEGIN %1$s" and "END %1$s" are 138 dynamically generated, and should only be modified via WordPress filters. 139 Any changes to the directives between these markers will be overwritten.' 140 ), 141 $marker 142 ); 143 144 $instructions = explode( "\n", $instructions ); 145 foreach ( $instructions as $line => $text ) { 146 $instructions[ $line ] = '# ' . $text; 147 } 148 149 /** 150 * Filters the inline instructions inserted before the dynamically generated content. 151 * 152 * @since 5.3.0 153 * 154 * @param string[] $instructions Array of lines with inline instructions. 155 * @param string $marker The marker being inserted. 156 */ 157 $instructions = apply_filters( 'insert_with_markers_inline_instructions', $instructions, $marker ); 158 159 if ( $switched_locale ) { 160 restore_previous_locale(); 161 } 162 163 $insertion = array_merge( $instructions, $insertion ); 164 165 $start_marker = "# BEGIN {$marker}"; 166 $end_marker = "# END {$marker}"; 167 168 $fp = fopen( $filename, 'r+' ); 169 if ( ! $fp ) { 170 return false; 171 } 172 173 // Attempt to get a lock. If the filesystem supports locking, this will block until the lock is acquired. 174 flock( $fp, LOCK_EX ); 175 176 $lines = array(); 177 while ( ! feof( $fp ) ) { 178 $lines[] = rtrim( fgets( $fp ), "\r\n" ); 179 } 180 181 // Split out the existing file into the preceding lines, and those that appear after the marker. 182 $pre_lines = array(); 183 $post_lines = array(); 184 $existing_lines = array(); 185 $found_marker = false; 186 $found_end_marker = false; 187 foreach ( $lines as $line ) { 188 if ( ! $found_marker && false !== strpos( $line, $start_marker ) ) { 189 $found_marker = true; 190 continue; 191 } elseif ( ! $found_end_marker && false !== strpos( $line, $end_marker ) ) { 192 $found_end_marker = true; 193 continue; 194 } 195 if ( ! $found_marker ) { 196 $pre_lines[] = $line; 197 } elseif ( $found_marker && $found_end_marker ) { 198 $post_lines[] = $line; 199 } else { 200 $existing_lines[] = $line; 201 } 202 } 203 204 // Check to see if there was a change. 205 if ( $existing_lines === $insertion ) { 206 flock( $fp, LOCK_UN ); 207 fclose( $fp ); 208 209 return true; 210 } 211 212 // Generate the new file data. 213 $new_file_data = implode( 214 "\n", 215 array_merge( 216 $pre_lines, 217 array( $start_marker ), 218 $insertion, 219 array( $end_marker ), 220 $post_lines 221 ) 222 ); 223 224 // Write to the start of the file, and truncate it to that length. 225 fseek( $fp, 0 ); 226 $bytes = fwrite( $fp, $new_file_data ); 227 if ( $bytes ) { 228 ftruncate( $fp, ftell( $fp ) ); 229 } 230 fflush( $fp ); 231 flock( $fp, LOCK_UN ); 232 fclose( $fp ); 233 234 return (bool) $bytes; 235 } 236 237 /** 238 * Updates the htaccess file with the current rules if it is writable. 239 * 240 * Always writes to the file if it exists and is writable to ensure that we 241 * blank out old rules. 242 * 243 * @since 1.5.0 244 * 245 * @global WP_Rewrite $wp_rewrite WordPress rewrite component. 246 * 247 * @return bool|null True on write success, false on failure. Null in multisite. 248 */ 249 function save_mod_rewrite_rules() { 250 if ( is_multisite() ) { 251 return; 252 } 253 254 global $wp_rewrite; 255 256 // Ensure get_home_path() is declared. 257 require_once ABSPATH . 'wp-admin/includes/file.php'; 258 259 $home_path = get_home_path(); 260 $htaccess_file = $home_path . '.htaccess'; 261 262 /* 263 * If the file doesn't already exist check for write access to the directory 264 * and whether we have some rules. Else check for write access to the file. 265 */ 266 if ( ( ! file_exists( $htaccess_file ) && is_writable( $home_path ) && $wp_rewrite->using_mod_rewrite_permalinks() ) || is_writable( $htaccess_file ) ) { 267 if ( got_mod_rewrite() ) { 268 $rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() ); 269 return insert_with_markers( $htaccess_file, 'WordPress', $rules ); 270 } 271 } 272 273 return false; 274 } 275 276 /** 277 * Updates the IIS web.config file with the current rules if it is writable. 278 * If the permalinks do not require rewrite rules then the rules are deleted from the web.config file. 279 * 280 * @since 2.8.0 281 * 282 * @global WP_Rewrite $wp_rewrite WordPress rewrite component. 283 * 284 * @return bool|null True on write success, false on failure. Null in multisite. 285 */ 286 function iis7_save_url_rewrite_rules() { 287 if ( is_multisite() ) { 288 return; 289 } 290 291 global $wp_rewrite; 292 293 // Ensure get_home_path() is declared. 294 require_once ABSPATH . 'wp-admin/includes/file.php'; 295 296 $home_path = get_home_path(); 297 $web_config_file = $home_path . 'web.config'; 298 299 // Using win_is_writable() instead of is_writable() because of a bug in Windows PHP. 300 if ( iis7_supports_permalinks() && ( ( ! file_exists( $web_config_file ) && win_is_writable( $home_path ) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable( $web_config_file ) ) ) { 301 $rule = $wp_rewrite->iis7_url_rewrite_rules( false ); 302 if ( ! empty( $rule ) ) { 303 return iis7_add_rewrite_rule( $web_config_file, $rule ); 304 } else { 305 return iis7_delete_rewrite_rule( $web_config_file ); 306 } 307 } 308 return false; 309 } 310 311 /** 312 * Update the "recently-edited" file for the plugin or theme editor. 313 * 314 * @since 1.5.0 315 * 316 * @param string $file 317 */ 318 function update_recently_edited( $file ) { 319 $oldfiles = (array) get_option( 'recently_edited' ); 320 if ( $oldfiles ) { 321 $oldfiles = array_reverse( $oldfiles ); 322 $oldfiles[] = $file; 323 $oldfiles = array_reverse( $oldfiles ); 324 $oldfiles = array_unique( $oldfiles ); 325 if ( 5 < count( $oldfiles ) ) { 326 array_pop( $oldfiles ); 327 } 328 } else { 329 $oldfiles[] = $file; 330 } 331 update_option( 'recently_edited', $oldfiles ); 332 } 333 334 /** 335 * Makes a tree structure for the theme editor's file list. 336 * 337 * @since 4.9.0 338 * @access private 339 * 340 * @param array $allowed_files List of theme file paths. 341 * @return array Tree structure for listing theme files. 342 */ 343 function wp_make_theme_file_tree( $allowed_files ) { 344 $tree_list = array(); 345 foreach ( $allowed_files as $file_name => $absolute_filename ) { 346 $list = explode( '/', $file_name ); 347 $last_dir = &$tree_list; 348 foreach ( $list as $dir ) { 349 $last_dir =& $last_dir[ $dir ]; 350 } 351 $last_dir = $file_name; 352 } 353 return $tree_list; 354 } 355 356 /** 357 * Outputs the formatted file list for the theme editor. 358 * 359 * @since 4.9.0 360 * @access private 361 * 362 * @global string $relative_file Name of the file being edited relative to the 363 * theme directory. 364 * @global string $stylesheet The stylesheet name of the theme being edited. 365 * 366 * @param array|string $tree List of file/folder paths, or filename. 367 * @param int $level The aria-level for the current iteration. 368 * @param int $size The aria-setsize for the current iteration. 369 * @param int $index The aria-posinset for the current iteration. 370 */ 371 function wp_print_theme_file_tree( $tree, $level = 2, $size = 1, $index = 1 ) { 372 global $relative_file, $stylesheet; 373 374 if ( is_array( $tree ) ) { 375 $index = 0; 376 $size = count( $tree ); 377 foreach ( $tree as $label => $theme_file ) : 378 $index++; 379 if ( ! is_array( $theme_file ) ) { 380 wp_print_theme_file_tree( $theme_file, $level, $index, $size ); 381 continue; 382 } 383 ?> 384 <li role="treeitem" aria-expanded="true" tabindex="-1" 385 aria-level="<?php echo esc_attr( $level ); ?>" 386 aria-setsize="<?php echo esc_attr( $size ); ?>" 387 aria-posinset="<?php echo esc_attr( $index ); ?>"> 388 <span class="folder-label"><?php echo esc_html( $label ); ?> <span class="screen-reader-text"><?php _e( 'folder' ); ?></span><span aria-hidden="true" class="icon"></span></span> 389 <ul role="group" class="tree-folder"><?php wp_print_theme_file_tree( $theme_file, $level + 1, $index, $size ); ?></ul> 390 </li> 391 <?php 392 endforeach; 393 } else { 394 $filename = $tree; 395 $url = add_query_arg( 396 array( 397 'file' => rawurlencode( $tree ), 398 'theme' => rawurlencode( $stylesheet ), 399 ), 400 self_admin_url( 'theme-editor.php' ) 401 ); 402 ?> 403 <li role="none" class="<?php echo esc_attr( $relative_file === $filename ? 'current-file' : '' ); ?>"> 404 <a role="treeitem" tabindex="<?php echo esc_attr( $relative_file === $filename ? '0' : '-1' ); ?>" 405 href="<?php echo esc_url( $url ); ?>" 406 aria-level="<?php echo esc_attr( $level ); ?>" 407 aria-setsize="<?php echo esc_attr( $size ); ?>" 408 aria-posinset="<?php echo esc_attr( $index ); ?>"> 409 <?php 410 $file_description = esc_html( get_file_description( $filename ) ); 411 if ( $file_description !== $filename && wp_basename( $filename ) !== $file_description ) { 412 $file_description .= '<br /><span class="nonessential">(' . esc_html( $filename ) . ')</span>'; 413 } 414 415 if ( $relative_file === $filename ) { 416 echo '<span class="notice notice-info">' . $file_description . '</span>'; 417 } else { 418 echo $file_description; 419 } 420 ?> 421 </a> 422 </li> 423 <?php 424 } 425 } 426 427 /** 428 * Makes a tree structure for the plugin editor's file list. 429 * 430 * @since 4.9.0 431 * @access private 432 * 433 * @param array $plugin_editable_files List of plugin file paths. 434 * @return array Tree structure for listing plugin files. 435 */ 436 function wp_make_plugin_file_tree( $plugin_editable_files ) { 437 $tree_list = array(); 438 foreach ( $plugin_editable_files as $plugin_file ) { 439 $list = explode( '/', preg_replace( '#^.+?/#', '', $plugin_file ) ); 440 $last_dir = &$tree_list; 441 foreach ( $list as $dir ) { 442 $last_dir =& $last_dir[ $dir ]; 443 } 444 $last_dir = $plugin_file; 445 } 446 return $tree_list; 447 } 448 449 /** 450 * Outputs the formatted file list for the plugin editor. 451 * 452 * @since 4.9.0 453 * @access private 454 * 455 * @param array|string $tree List of file/folder paths, or filename. 456 * @param string $label Name of file or folder to print. 457 * @param int $level The aria-level for the current iteration. 458 * @param int $size The aria-setsize for the current iteration. 459 * @param int $index The aria-posinset for the current iteration. 460 */ 461 function wp_print_plugin_file_tree( $tree, $label = '', $level = 2, $size = 1, $index = 1 ) { 462 global $file, $plugin; 463 if ( is_array( $tree ) ) { 464 $index = 0; 465 $size = count( $tree ); 466 foreach ( $tree as $label => $plugin_file ) : 467 $index++; 468 if ( ! is_array( $plugin_file ) ) { 469 wp_print_plugin_file_tree( $plugin_file, $label, $level, $index, $size ); 470 continue; 471 } 472 ?> 473 <li role="treeitem" aria-expanded="true" tabindex="-1" 474 aria-level="<?php echo esc_attr( $level ); ?>" 475 aria-setsize="<?php echo esc_attr( $size ); ?>" 476 aria-posinset="<?php echo esc_attr( $index ); ?>"> 477 <span class="folder-label"><?php echo esc_html( $label ); ?> <span class="screen-reader-text"><?php _e( 'folder' ); ?></span><span aria-hidden="true" class="icon"></span></span> 478 <ul role="group" class="tree-folder"><?php wp_print_plugin_file_tree( $plugin_file, '', $level + 1, $index, $size ); ?></ul> 479 </li> 480 <?php 481 endforeach; 482 } else { 483 $url = add_query_arg( 484 array( 485 'file' => rawurlencode( $tree ), 486 'plugin' => rawurlencode( $plugin ), 487 ), 488 self_admin_url( 'plugin-editor.php' ) 489 ); 490 ?> 491 <li role="none" class="<?php echo esc_attr( $file === $tree ? 'current-file' : '' ); ?>"> 492 <a role="treeitem" tabindex="<?php echo esc_attr( $file === $tree ? '0' : '-1' ); ?>" 493 href="<?php echo esc_url( $url ); ?>" 494 aria-level="<?php echo esc_attr( $level ); ?>" 495 aria-setsize="<?php echo esc_attr( $size ); ?>" 496 aria-posinset="<?php echo esc_attr( $index ); ?>"> 497 <?php 498 if ( $file === $tree ) { 499 echo '<span class="notice notice-info">' . esc_html( $label ) . '</span>'; 500 } else { 501 echo esc_html( $label ); 502 } 503 ?> 504 </a> 505 </li> 506 <?php 507 } 508 } 509 510 /** 511 * Flushes rewrite rules if siteurl, home or page_on_front changed. 512 * 513 * @since 2.1.0 514 * 515 * @param string $old_value 516 * @param string $value 517 */ 518 function update_home_siteurl( $old_value, $value ) { 519 if ( wp_installing() ) { 520 return; 521 } 522 523 if ( is_multisite() && ms_is_switched() ) { 524 delete_option( 'rewrite_rules' ); 525 } else { 526 flush_rewrite_rules(); 527 } 528 } 529 530 531 /** 532 * Resets global variables based on $_GET and $_POST 533 * 534 * This function resets global variables based on the names passed 535 * in the $vars array to the value of $_POST[$var] or $_GET[$var] or '' 536 * if neither is defined. 537 * 538 * @since 2.0.0 539 * 540 * @param array $vars An array of globals to reset. 541 */ 542 function wp_reset_vars( $vars ) { 543 foreach ( $vars as $var ) { 544 if ( empty( $_POST[ $var ] ) ) { 545 if ( empty( $_GET[ $var ] ) ) { 546 $GLOBALS[ $var ] = ''; 547 } else { 548 $GLOBALS[ $var ] = $_GET[ $var ]; 549 } 550 } else { 551 $GLOBALS[ $var ] = $_POST[ $var ]; 552 } 553 } 554 } 555 556 /** 557 * Displays the given administration message. 558 * 559 * @since 2.1.0 560 * 561 * @param string|WP_Error $message 562 */ 563 function show_message( $message ) { 564 if ( is_wp_error( $message ) ) { 565 if ( $message->get_error_data() && is_string( $message->get_error_data() ) ) { 566 $message = $message->get_error_message() . ': ' . $message->get_error_data(); 567 } else { 568 $message = $message->get_error_message(); 569 } 570 } 571 echo "<p>$message</p>\n"; 572 wp_ob_end_flush_all(); 573 flush(); 574 } 575 576 /** 577 * @since 2.8.0 578 * 579 * @param string $content 580 * @return array 581 */ 582 function wp_doc_link_parse( $content ) { 583 if ( ! is_string( $content ) || empty( $content ) ) { 584 return array(); 585 } 586 587 if ( ! function_exists( 'token_get_all' ) ) { 588 return array(); 589 } 590 591 $tokens = token_get_all( $content ); 592 $count = count( $tokens ); 593 $functions = array(); 594 $ignore_functions = array(); 595 for ( $t = 0; $t < $count - 2; $t++ ) { 596 if ( ! is_array( $tokens[ $t ] ) ) { 597 continue; 598 } 599 600 if ( T_STRING == $tokens[ $t ][0] && ( '(' === $tokens[ $t + 1 ] || '(' === $tokens[ $t + 2 ] ) ) { 601 // If it's a function or class defined locally, there's not going to be any docs available. 602 if ( ( isset( $tokens[ $t - 2 ][1] ) && in_array( $tokens[ $t - 2 ][1], array( 'function', 'class' ), true ) ) 603 || ( isset( $tokens[ $t - 2 ][0] ) && T_OBJECT_OPERATOR == $tokens[ $t - 1 ][0] ) 604 ) { 605 $ignore_functions[] = $tokens[ $t ][1]; 606 } 607 // Add this to our stack of unique references. 608 $functions[] = $tokens[ $t ][1]; 609 } 610 } 611 612 $functions = array_unique( $functions ); 613 sort( $functions ); 614 615 /** 616 * Filters the list of functions and classes to be ignored from the documentation lookup. 617 * 618 * @since 2.8.0 619 * 620 * @param string[] $ignore_functions Array of names of functions and classes to be ignored. 621 */ 622 $ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions ); 623 624 $ignore_functions = array_unique( $ignore_functions ); 625 626 $out = array(); 627 foreach ( $functions as $function ) { 628 if ( in_array( $function, $ignore_functions, true ) ) { 629 continue; 630 } 631 $out[] = $function; 632 } 633 634 return $out; 635 } 636 637 /** 638 * Saves option for number of rows when listing posts, pages, comments, etc. 639 * 640 * @since 2.8.0 641 */ 642 function set_screen_options() { 643 644 if ( isset( $_POST['wp_screen_options'] ) && is_array( $_POST['wp_screen_options'] ) ) { 645 check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' ); 646 647 $user = wp_get_current_user(); 648 if ( ! $user ) { 649 return; 650 } 651 $option = $_POST['wp_screen_options']['option']; 652 $value = $_POST['wp_screen_options']['value']; 653 654 if ( sanitize_key( $option ) != $option ) { 655 return; 656 } 657 658 $map_option = $option; 659 $type = str_replace( 'edit_', '', $map_option ); 660 $type = str_replace( '_per_page', '', $type ); 661 if ( in_array( $type, get_taxonomies(), true ) ) { 662 $map_option = 'edit_tags_per_page'; 663 } elseif ( in_array( $type, get_post_types(), true ) ) { 664 $map_option = 'edit_per_page'; 665 } else { 666 $option = str_replace( '-', '_', $option ); 667 } 668 669 switch ( $map_option ) { 670 case 'edit_per_page': 671 case 'users_per_page': 672 case 'edit_comments_per_page': 673 case 'upload_per_page': 674 case 'edit_tags_per_page': 675 case 'plugins_per_page': 676 case 'export_personal_data_requests_per_page': 677 case 'remove_personal_data_requests_per_page': 678 // Network admin. 679 case 'sites_network_per_page': 680 case 'users_network_per_page': 681 case 'site_users_network_per_page': 682 case 'plugins_network_per_page': 683 case 'themes_network_per_page': 684 case 'site_themes_network_per_page': 685 $value = (int) $value; 686 if ( $value < 1 || $value > 999 ) { 687 return; 688 } 689 break; 690 default: 691 /** 692 * Filters a screen option value before it is set. 693 * 694 * The filter can also be used to modify non-standard [items]_per_page 695 * settings. See the parent function for a full list of standard options. 696 * 697 * Returning false to the filter will skip saving the current option. 698 * 699 * @since 2.8.0 700 * 701 * @see set_screen_options() 702 * 703 * @param bool $keep Whether to save or skip saving the screen option value. Default false. 704 * @param string $option The option name. 705 * @param int $value The number of rows to use. 706 */ 707 $value = apply_filters( 'set-screen-option', false, $option, $value ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 708 709 if ( false === $value ) { 710 return; 711 } 712 break; 713 } 714 715 update_user_meta( $user->ID, $option, $value ); 716 717 $url = remove_query_arg( array( 'pagenum', 'apage', 'paged' ), wp_get_referer() ); 718 if ( isset( $_POST['mode'] ) ) { 719 $url = add_query_arg( array( 'mode' => $_POST['mode'] ), $url ); 720 } 721 722 wp_safe_redirect( $url ); 723 exit; 724 } 725 } 726 727 /** 728 * Check if rewrite rule for WordPress already exists in the IIS 7+ configuration file 729 * 730 * @since 2.8.0 731 * 732 * @return bool 733 * @param string $filename The file path to the configuration file 734 */ 735 function iis7_rewrite_rule_exists( $filename ) { 736 if ( ! file_exists( $filename ) ) { 737 return false; 738 } 739 if ( ! class_exists( 'DOMDocument', false ) ) { 740 return false; 741 } 742 743 $doc = new DOMDocument(); 744 if ( $doc->load( $filename ) === false ) { 745 return false; 746 } 747 $xpath = new DOMXPath( $doc ); 748 $rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 749 if ( 0 == $rules->length ) { 750 return false; 751 } else { 752 return true; 753 } 754 } 755 756 /** 757 * Delete WordPress rewrite rule from web.config file if it exists there 758 * 759 * @since 2.8.0 760 * 761 * @param string $filename Name of the configuration file 762 * @return bool 763 */ 764 function iis7_delete_rewrite_rule( $filename ) { 765 // If configuration file does not exist then rules also do not exist, so there is nothing to delete. 766 if ( ! file_exists( $filename ) ) { 767 return true; 768 } 769 770 if ( ! class_exists( 'DOMDocument', false ) ) { 771 return false; 772 } 773 774 $doc = new DOMDocument(); 775 $doc->preserveWhiteSpace = false; 776 777 if ( $doc->load( $filename ) === false ) { 778 return false; 779 } 780 $xpath = new DOMXPath( $doc ); 781 $rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 782 if ( $rules->length > 0 ) { 783 $child = $rules->item( 0 ); 784 $parent = $child->parentNode; 785 $parent->removeChild( $child ); 786 $doc->formatOutput = true; 787 saveDomDocument( $doc, $filename ); 788 } 789 return true; 790 } 791 792 /** 793 * Add WordPress rewrite rule to the IIS 7+ configuration file. 794 * 795 * @since 2.8.0 796 * 797 * @param string $filename The file path to the configuration file 798 * @param string $rewrite_rule The XML fragment with URL Rewrite rule 799 * @return bool 800 */ 801 function iis7_add_rewrite_rule( $filename, $rewrite_rule ) { 802 if ( ! class_exists( 'DOMDocument', false ) ) { 803 return false; 804 } 805 806 // If configuration file does not exist then we create one. 807 if ( ! file_exists( $filename ) ) { 808 $fp = fopen( $filename, 'w' ); 809 fwrite( $fp, '<configuration/>' ); 810 fclose( $fp ); 811 } 812 813 $doc = new DOMDocument(); 814 $doc->preserveWhiteSpace = false; 815 816 if ( $doc->load( $filename ) === false ) { 817 return false; 818 } 819 820 $xpath = new DOMXPath( $doc ); 821 822 // First check if the rule already exists as in that case there is no need to re-add it. 823 $wordpress_rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 824 if ( $wordpress_rules->length > 0 ) { 825 return true; 826 } 827 828 // Check the XPath to the rewrite rule and create XML nodes if they do not exist. 829 $xmlnodes = $xpath->query( '/configuration/system.webServer/rewrite/rules' ); 830 if ( $xmlnodes->length > 0 ) { 831 $rules_node = $xmlnodes->item( 0 ); 832 } else { 833 $rules_node = $doc->createElement( 'rules' ); 834 835 $xmlnodes = $xpath->query( '/configuration/system.webServer/rewrite' ); 836 if ( $xmlnodes->length > 0 ) { 837 $rewrite_node = $xmlnodes->item( 0 ); 838 $rewrite_node->appendChild( $rules_node ); 839 } else { 840 $rewrite_node = $doc->createElement( 'rewrite' ); 841 $rewrite_node->appendChild( $rules_node ); 842 843 $xmlnodes = $xpath->query( '/configuration/system.webServer' ); 844 if ( $xmlnodes->length > 0 ) { 845 $system_webServer_node = $xmlnodes->item( 0 ); 846 $system_webServer_node->appendChild( $rewrite_node ); 847 } else { 848 $system_webServer_node = $doc->createElement( 'system.webServer' ); 849 $system_webServer_node->appendChild( $rewrite_node ); 850 851 $xmlnodes = $xpath->query( '/configuration' ); 852 if ( $xmlnodes->length > 0 ) { 853 $config_node = $xmlnodes->item( 0 ); 854 $config_node->appendChild( $system_webServer_node ); 855 } else { 856 $config_node = $doc->createElement( 'configuration' ); 857 $doc->appendChild( $config_node ); 858 $config_node->appendChild( $system_webServer_node ); 859 } 860 } 861 } 862 } 863 864 $rule_fragment = $doc->createDocumentFragment(); 865 $rule_fragment->appendXML( $rewrite_rule ); 866 $rules_node->appendChild( $rule_fragment ); 867 868 $doc->encoding = 'UTF-8'; 869 $doc->formatOutput = true; 870 saveDomDocument( $doc, $filename ); 871 872 return true; 873 } 874 875 /** 876 * Saves the XML document into a file 877 * 878 * @since 2.8.0 879 * 880 * @param DOMDocument $doc 881 * @param string $filename 882 */ 883 function saveDomDocument( $doc, $filename ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid 884 $config = $doc->saveXML(); 885 $config = preg_replace( "/([^\r])\n/", "$1\r\n", $config ); 886 $fp = fopen( $filename, 'w' ); 887 fwrite( $fp, $config ); 888 fclose( $fp ); 889 } 890 891 /** 892 * Display the default admin color scheme picker (Used in user-edit.php) 893 * 894 * @since 3.0.0 895 * 896 * @global array $_wp_admin_css_colors 897 * 898 * @param int $user_id User ID. 899 */ 900 function admin_color_scheme_picker( $user_id ) { 901 global $_wp_admin_css_colors; 902 903 ksort( $_wp_admin_css_colors ); 904 905 if ( isset( $_wp_admin_css_colors['fresh'] ) ) { 906 // Set Default ('fresh') and Light should go first. 907 $_wp_admin_css_colors = array_filter( 908 array_merge( 909 array( 910 'fresh' => '', 911 'light' => '', 912 ), 913 $_wp_admin_css_colors 914 ) 915 ); 916 } 917 918 $current_color = get_user_option( 'admin_color', $user_id ); 919 920 if ( empty( $current_color ) || ! isset( $_wp_admin_css_colors[ $current_color ] ) ) { 921 $current_color = 'fresh'; 922 } 923 924 ?> 925 <fieldset id="color-picker" class="scheme-list"> 926 <legend class="screen-reader-text"><span><?php _e( 'Admin Color Scheme' ); ?></span></legend> 927 <?php 928 wp_nonce_field( 'save-color-scheme', 'color-nonce', false ); 929 foreach ( $_wp_admin_css_colors as $color => $color_info ) : 930 931 ?> 932 <div class="color-option <?php echo ( $color == $current_color ) ? 'selected' : ''; ?>"> 933 <input name="admin_color" id="admin_color_<?php echo esc_attr( $color ); ?>" type="radio" value="<?php echo esc_attr( $color ); ?>" class="tog" <?php checked( $color, $current_color ); ?> /> 934 <input type="hidden" class="css_url" value="<?php echo esc_url( $color_info->url ); ?>" /> 935 <input type="hidden" class="icon_colors" value="<?php echo esc_attr( wp_json_encode( array( 'icons' => $color_info->icon_colors ) ) ); ?>" /> 936 <label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label> 937 <table class="color-palette"> 938 <tr> 939 <?php 940 941 foreach ( $color_info->colors as $html_color ) { 942 ?> 943 <td style="background-color: <?php echo esc_attr( $html_color ); ?>"> </td> 944 <?php 945 } 946 947 ?> 948 </tr> 949 </table> 950 </div> 951 <?php 952 953 endforeach; 954 955 ?> 956 </fieldset> 957 <?php 958 } 959 960 /** 961 * 962 * @global array $_wp_admin_css_colors 963 */ 964 function wp_color_scheme_settings() { 965 global $_wp_admin_css_colors; 966 967 $color_scheme = get_user_option( 'admin_color' ); 968 969 // It's possible to have a color scheme set that is no longer registered. 970 if ( empty( $_wp_admin_css_colors[ $color_scheme ] ) ) { 971 $color_scheme = 'fresh'; 972 } 973 974 if ( ! empty( $_wp_admin_css_colors[ $color_scheme ]->icon_colors ) ) { 975 $icon_colors = $_wp_admin_css_colors[ $color_scheme ]->icon_colors; 976 } elseif ( ! empty( $_wp_admin_css_colors['fresh']->icon_colors ) ) { 977 $icon_colors = $_wp_admin_css_colors['fresh']->icon_colors; 978 } else { 979 // Fall back to the default set of icon colors if the default scheme is missing. 980 $icon_colors = array( 981 'base' => '#a0a5aa', 982 'focus' => '#00a0d2', 983 'current' => '#fff', 984 ); 985 } 986 987 echo '<script type="text/javascript">var _wpColorScheme = ' . wp_json_encode( array( 'icons' => $icon_colors ) ) . ";</script>\n"; 988 } 989 990 /** 991 * @since 3.3.0 992 */ 993 function _ipad_meta() { 994 if ( wp_is_mobile() ) { 995 ?> 996 <meta name="viewport" id="viewport-meta" content="width=device-width, initial-scale=1"> 997 <?php 998 } 999 } 1000 1001 /** 1002 * Check lock status for posts displayed on the Posts screen 1003 * 1004 * @since 3.6.0 1005 * 1006 * @param array $response The Heartbeat response. 1007 * @param array $data The $_POST data sent. 1008 * @param string $screen_id The screen id. 1009 * @return array The Heartbeat response. 1010 */ 1011 function wp_check_locked_posts( $response, $data, $screen_id ) { 1012 $checked = array(); 1013 1014 if ( array_key_exists( 'wp-check-locked-posts', $data ) && is_array( $data['wp-check-locked-posts'] ) ) { 1015 foreach ( $data['wp-check-locked-posts'] as $key ) { 1016 $post_id = absint( substr( $key, 5 ) ); 1017 if ( ! $post_id ) { 1018 continue; 1019 } 1020 1021 $user_id = wp_check_post_lock( $post_id ); 1022 if ( $user_id ) { 1023 $user = get_userdata( $user_id ); 1024 if ( $user && current_user_can( 'edit_post', $post_id ) ) { 1025 $send = array( 1026 /* translators: %s: User's display name. */ 1027 'text' => sprintf( __( '%s is currently editing' ), $user->display_name ), 1028 ); 1029 1030 $avatar = get_avatar( $user->ID, 18 ); 1031 if ( $avatar && preg_match( "|src='([^']+)'|", $avatar, $matches ) ) { 1032 $send['avatar_src'] = $matches[1]; 1033 } 1034 1035 $checked[ $key ] = $send; 1036 } 1037 } 1038 } 1039 } 1040 1041 if ( ! empty( $checked ) ) { 1042 $response['wp-check-locked-posts'] = $checked; 1043 } 1044 1045 return $response; 1046 } 1047 1048 /** 1049 * Check lock status on the New/Edit Post screen and refresh the lock 1050 * 1051 * @since 3.6.0 1052 * 1053 * @param array $response The Heartbeat response. 1054 * @param array $data The $_POST data sent. 1055 * @param string $screen_id The screen id. 1056 * @return array The Heartbeat response. 1057 */ 1058 function wp_refresh_post_lock( $response, $data, $screen_id ) { 1059 if ( array_key_exists( 'wp-refresh-post-lock', $data ) ) { 1060 $received = $data['wp-refresh-post-lock']; 1061 $send = array(); 1062 1063 $post_id = absint( $received['post_id'] ); 1064 if ( ! $post_id ) { 1065 return $response; 1066 } 1067 1068 if ( ! current_user_can( 'edit_post', $post_id ) ) { 1069 return $response; 1070 } 1071 1072 $user_id = wp_check_post_lock( $post_id ); 1073 $user = get_userdata( $user_id ); 1074 if ( $user ) { 1075 $error = array( 1076 /* translators: %s: User's display name. */ 1077 'text' => sprintf( __( '%s has taken over and is currently editing.' ), $user->display_name ), 1078 ); 1079 1080 $avatar = get_avatar( $user->ID, 64 ); 1081 if ( $avatar ) { 1082 if ( preg_match( "|src='([^']+)'|", $avatar, $matches ) ) { 1083 $error['avatar_src'] = $matches[1]; 1084 } 1085 } 1086 1087 $send['lock_error'] = $error; 1088 } else { 1089 $new_lock = wp_set_post_lock( $post_id ); 1090 if ( $new_lock ) { 1091 $send['new_lock'] = implode( ':', $new_lock ); 1092 } 1093 } 1094 1095 $response['wp-refresh-post-lock'] = $send; 1096 } 1097 1098 return $response; 1099 } 1100 1101 /** 1102 * Check nonce expiration on the New/Edit Post screen and refresh if needed 1103 * 1104 * @since 3.6.0 1105 * 1106 * @param array $response The Heartbeat response. 1107 * @param array $data The $_POST data sent. 1108 * @param string $screen_id The screen id. 1109 * @return array The Heartbeat response. 1110 */ 1111 function wp_refresh_post_nonces( $response, $data, $screen_id ) { 1112 if ( array_key_exists( 'wp-refresh-post-nonces', $data ) ) { 1113 $received = $data['wp-refresh-post-nonces']; 1114 $response['wp-refresh-post-nonces'] = array( 'check' => 1 ); 1115 1116 $post_id = absint( $received['post_id'] ); 1117 if ( ! $post_id ) { 1118 return $response; 1119 } 1120 1121 if ( ! current_user_can( 'edit_post', $post_id ) ) { 1122 return $response; 1123 } 1124 1125 $response['wp-refresh-post-nonces'] = array( 1126 'replace' => array( 1127 'getpermalinknonce' => wp_create_nonce( 'getpermalink' ), 1128 'samplepermalinknonce' => wp_create_nonce( 'samplepermalink' ), 1129 'closedpostboxesnonce' => wp_create_nonce( 'closedpostboxes' ), 1130 '_ajax_linking_nonce' => wp_create_nonce( 'internal-linking' ), 1131 '_wpnonce' => wp_create_nonce( 'update-post_' . $post_id ), 1132 ), 1133 ); 1134 } 1135 1136 return $response; 1137 } 1138 1139 /** 1140 * Add the latest Heartbeat and REST-API nonce to the Heartbeat response. 1141 * 1142 * @since 5.0.0 1143 * 1144 * @param array $response The Heartbeat response. 1145 * @return array The Heartbeat response. 1146 */ 1147 function wp_refresh_heartbeat_nonces( $response ) { 1148 // Refresh the Rest API nonce. 1149 $response['rest_nonce'] = wp_create_nonce( 'wp_rest' ); 1150 1151 // Refresh the Heartbeat nonce. 1152 $response['heartbeat_nonce'] = wp_create_nonce( 'heartbeat-nonce' ); 1153 return $response; 1154 } 1155 1156 /** 1157 * Disable suspension of Heartbeat on the Add/Edit Post screens. 1158 * 1159 * @since 3.8.0 1160 * 1161 * @global string $pagenow 1162 * 1163 * @param array $settings An array of Heartbeat settings. 1164 * @return array Filtered Heartbeat settings. 1165 */ 1166 function wp_heartbeat_set_suspension( $settings ) { 1167 global $pagenow; 1168 1169 if ( 'post.php' === $pagenow || 'post-new.php' === $pagenow ) { 1170 $settings['suspension'] = 'disable'; 1171 } 1172 1173 return $settings; 1174 } 1175 1176 /** 1177 * Autosave with heartbeat 1178 * 1179 * @since 3.9.0 1180 * 1181 * @param array $response The Heartbeat response. 1182 * @param array $data The $_POST data sent. 1183 * @return array The Heartbeat response. 1184 */ 1185 function heartbeat_autosave( $response, $data ) { 1186 if ( ! empty( $data['wp_autosave'] ) ) { 1187 $saved = wp_autosave( $data['wp_autosave'] ); 1188 1189 if ( is_wp_error( $saved ) ) { 1190 $response['wp_autosave'] = array( 1191 'success' => false, 1192 'message' => $saved->get_error_message(), 1193 ); 1194 } elseif ( empty( $saved ) ) { 1195 $response['wp_autosave'] = array( 1196 'success' => false, 1197 'message' => __( 'Error while saving.' ), 1198 ); 1199 } else { 1200 /* translators: Draft saved date format, see https://www.php.net/date */ 1201 $draft_saved_date_format = __( 'g:i:s a' ); 1202 $response['wp_autosave'] = array( 1203 'success' => true, 1204 /* translators: %s: Date and time. */ 1205 'message' => sprintf( __( 'Draft saved at %s.' ), date_i18n( $draft_saved_date_format ) ), 1206 ); 1207 } 1208 } 1209 1210 return $response; 1211 } 1212 1213 /** 1214 * Remove single-use URL parameters and create canonical link based on new URL. 1215 * 1216 * Remove specific query string parameters from a URL, create the canonical link, 1217 * put it in the admin header, and change the current URL to match. 1218 * 1219 * @since 4.2.0 1220 */ 1221 function wp_admin_canonical_url() { 1222 $removable_query_args = wp_removable_query_args(); 1223 1224 if ( empty( $removable_query_args ) ) { 1225 return; 1226 } 1227 1228 // Ensure we're using an absolute URL. 1229 $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1230 $filtered_url = remove_query_arg( $removable_query_args, $current_url ); 1231 ?> 1232 <link id="wp-admin-canonical" rel="canonical" href="<?php echo esc_url( $filtered_url ); ?>" /> 1233 <script> 1234 if ( window.history.replaceState ) { 1235 window.history.replaceState( null, null, document.getElementById( 'wp-admin-canonical' ).href + window.location.hash ); 1236 } 1237 </script> 1238 <?php 1239 } 1240 1241 /** 1242 * Send a referrer policy header so referrers are not sent externally from administration screens. 1243 * 1244 * @since 4.9.0 1245 */ 1246 function wp_admin_headers() { 1247 $policy = 'strict-origin-when-cross-origin'; 1248 1249 /** 1250 * Filters the admin referrer policy header value. 1251 * 1252 * @since 4.9.0 1253 * @since 4.9.5 The default value was changed to 'strict-origin-when-cross-origin'. 1254 * 1255 * @link https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy 1256 * 1257 * @param string $policy The admin referrer policy header value. Default 'strict-origin-when-cross-origin'. 1258 */ 1259 $policy = apply_filters( 'admin_referrer_policy', $policy ); 1260 1261 header( sprintf( 'Referrer-Policy: %s', $policy ) ); 1262 } 1263 1264 /** 1265 * Outputs JS that reloads the page if the user navigated to it with the Back or Forward button. 1266 * 1267 * Used on the Edit Post and Add New Post screens. Needed to ensure the page is not loaded from browser cache, 1268 * so the post title and editor content are the last saved versions. Ideally this script should run first in the head. 1269 * 1270 * @since 4.6.0 1271 */ 1272 function wp_page_reload_on_back_button_js() { 1273 ?> 1274 <script> 1275 if ( typeof performance !== 'undefined' && performance.navigation && performance.navigation.type === 2 ) { 1276 document.location.reload( true ); 1277 } 1278 </script> 1279 <?php 1280 } 1281 1282 /** 1283 * Send a confirmation request email when a change of site admin email address is attempted. 1284 * 1285 * The new site admin address will not become active until confirmed. 1286 * 1287 * @since 3.0.0 1288 * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific. 1289 * 1290 * @param string $old_value The old site admin email address. 1291 * @param string $value The proposed new site admin email address. 1292 */ 1293 function update_option_new_admin_email( $old_value, $value ) { 1294 if ( get_option( 'admin_email' ) === $value || ! is_email( $value ) ) { 1295 return; 1296 } 1297 1298 $hash = md5( $value . time() . wp_rand() ); 1299 $new_admin_email = array( 1300 'hash' => $hash, 1301 'newemail' => $value, 1302 ); 1303 update_option( 'adminhash', $new_admin_email ); 1304 1305 $switched_locale = switch_to_locale( get_user_locale() ); 1306 1307 /* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */ 1308 $email_text = __( 1309 'Howdy ###USERNAME###, 1310 1311 You recently requested to have the administration email address on 1312 your site changed. 1313 1314 If this is correct, please click on the following link to change it: 1315 ###ADMIN_URL### 1316 1317 You can safely ignore and delete this email if you do not want to 1318 take this action. 1319 1320 This email has been sent to ###EMAIL### 1321 1322 Regards, 1323 All at ###SITENAME### 1324 ###SITEURL###' 1325 ); 1326 1327 /** 1328 * Filters the text of the email sent when a change of site admin email address is attempted. 1329 * 1330 * The following strings have a special meaning and will get replaced dynamically: 1331 * ###USERNAME### The current user's username. 1332 * ###ADMIN_URL### The link to click on to confirm the email change. 1333 * ###EMAIL### The proposed new site admin email address. 1334 * ###SITENAME### The name of the site. 1335 * ###SITEURL### The URL to the site. 1336 * 1337 * @since MU (3.0.0) 1338 * @since 4.9.0 This filter is no longer Multisite specific. 1339 * 1340 * @param string $email_text Text in the email. 1341 * @param array $new_admin_email { 1342 * Data relating to the new site admin email address. 1343 * 1344 * @type string $hash The secure hash used in the confirmation link URL. 1345 * @type string $newemail The proposed new site admin email address. 1346 * } 1347 */ 1348 $content = apply_filters( 'new_admin_email_content', $email_text, $new_admin_email ); 1349 1350 $current_user = wp_get_current_user(); 1351 $content = str_replace( '###USERNAME###', $current_user->user_login, $content ); 1352 $content = str_replace( '###ADMIN_URL###', esc_url( self_admin_url( 'options.php?adminhash=' . $hash ) ), $content ); 1353 $content = str_replace( '###EMAIL###', $value, $content ); 1354 $content = str_replace( '###SITENAME###', wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), $content ); 1355 $content = str_replace( '###SITEURL###', home_url(), $content ); 1356 1357 wp_mail( 1358 $value, 1359 sprintf( 1360 /* translators: New admin email address notification email subject. %s: Site title. */ 1361 __( '[%s] New Admin Email Address' ), 1362 wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ) 1363 ), 1364 $content 1365 ); 1366 1367 if ( $switched_locale ) { 1368 restore_previous_locale(); 1369 } 1370 } 1371 1372 /** 1373 * Appends '(Draft)' to draft page titles in the privacy page dropdown 1374 * so that unpublished content is obvious. 1375 * 1376 * @since 4.9.8 1377 * @access private 1378 * 1379 * @param string $title Page title. 1380 * @param WP_Post $page Page data object. 1381 * 1382 * @return string Page title. 1383 */ 1384 function _wp_privacy_settings_filter_draft_page_titles( $title, $page ) { 1385 if ( 'draft' === $page->post_status && 'privacy' === get_current_screen()->id ) { 1386 /* translators: %s: Page title. */ 1387 $title = sprintf( __( '%s (Draft)' ), $title ); 1388 } 1389 1390 return $title; 1391 } 1392 1393 /** 1394 * Checks if the user needs to update PHP. 1395 * 1396 * @since 5.1.0 1397 * @since 5.1.1 Added the {@see 'wp_is_php_version_acceptable'} filter. 1398 * 1399 * @return array|false $response Array of PHP version data. False on failure. 1400 */ 1401 function wp_check_php_version() { 1402 $version = phpversion(); 1403 $key = md5( $version ); 1404 1405 $response = get_site_transient( 'php_check_' . $key ); 1406 if ( false === $response ) { 1407 $url = 'http://api.wordpress.org/core/serve-happy/1.0/'; 1408 if ( wp_http_supports( array( 'ssl' ) ) ) { 1409 $url = set_url_scheme( $url, 'https' ); 1410 } 1411 1412 $url = add_query_arg( 'php_version', $version, $url ); 1413 1414 $response = wp_remote_get( $url ); 1415 1416 if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { 1417 return false; 1418 } 1419 1420 /** 1421 * Response should be an array with: 1422 * 'recommended_version' - string - The PHP version recommended by WordPress. 1423 * 'is_supported' - boolean - Whether the PHP version is actively supported. 1424 * 'is_secure' - boolean - Whether the PHP version receives security updates. 1425 * 'is_acceptable' - boolean - Whether the PHP version is still acceptable for WordPress. 1426 */ 1427 $response = json_decode( wp_remote_retrieve_body( $response ), true ); 1428 1429 if ( ! is_array( $response ) ) { 1430 return false; 1431 } 1432 1433 set_site_transient( 'php_check_' . $key, $response, WEEK_IN_SECONDS ); 1434 } 1435 1436 if ( isset( $response['is_acceptable'] ) && $response['is_acceptable'] ) { 1437 /** 1438 * Filters whether the active PHP version is considered acceptable by WordPress. 1439 * 1440 * Returning false will trigger a PHP version warning to show up in the admin dashboard to administrators. 1441 * 1442 * This filter is only run if the wordpress.org Serve Happy API considers the PHP version acceptable, ensuring 1443 * that this filter can only make this check stricter, but not loosen it. 1444 * 1445 * @since 5.1.1 1446 * 1447 * @param bool $is_acceptable Whether the PHP version is considered acceptable. Default true. 1448 * @param string $version PHP version checked. 1449 */ 1450 $response['is_acceptable'] = (bool) apply_filters( 'wp_is_php_version_acceptable', true, $version ); 1451 } 1452 1453 return $response; 1454 }
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| Generated: Thu Jun 4 01:00:04 2020 | Cross-referenced by PHPXref 0.7.1 |