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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' ) ) ) || ( isset( $tokens[ $t - 2 ][0] ) && T_OBJECT_OPERATOR == $tokens[ $t - 1 ][0] ) ) { 603 $ignore_functions[] = $tokens[ $t ][1]; 604 } 605 // Add this to our stack of unique references 606 $functions[] = $tokens[ $t ][1]; 607 } 608 } 609 610 $functions = array_unique( $functions ); 611 sort( $functions ); 612 613 /** 614 * Filters the list of functions and classes to be ignored from the documentation lookup. 615 * 616 * @since 2.8.0 617 * 618 * @param string[] $ignore_functions Array of names of functions and classes to be ignored. 619 */ 620 $ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions ); 621 622 $ignore_functions = array_unique( $ignore_functions ); 623 624 $out = array(); 625 foreach ( $functions as $function ) { 626 if ( in_array( $function, $ignore_functions ) ) { 627 continue; 628 } 629 $out[] = $function; 630 } 631 632 return $out; 633 } 634 635 /** 636 * Saves option for number of rows when listing posts, pages, comments, etc. 637 * 638 * @since 2.8.0 639 */ 640 function set_screen_options() { 641 642 if ( isset( $_POST['wp_screen_options'] ) && is_array( $_POST['wp_screen_options'] ) ) { 643 check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' ); 644 645 $user = wp_get_current_user(); 646 if ( ! $user ) { 647 return; 648 } 649 $option = $_POST['wp_screen_options']['option']; 650 $value = $_POST['wp_screen_options']['value']; 651 652 if ( $option != sanitize_key( $option ) ) { 653 return; 654 } 655 656 $map_option = $option; 657 $type = str_replace( 'edit_', '', $map_option ); 658 $type = str_replace( '_per_page', '', $type ); 659 if ( in_array( $type, get_taxonomies() ) ) { 660 $map_option = 'edit_tags_per_page'; 661 } elseif ( in_array( $type, get_post_types() ) ) { 662 $map_option = 'edit_per_page'; 663 } else { 664 $option = str_replace( '-', '_', $option ); 665 } 666 667 switch ( $map_option ) { 668 case 'edit_per_page': 669 case 'users_per_page': 670 case 'edit_comments_per_page': 671 case 'upload_per_page': 672 case 'edit_tags_per_page': 673 case 'plugins_per_page': 674 case 'export_personal_data_requests_per_page': 675 case 'remove_personal_data_requests_per_page': 676 // Network admin 677 case 'sites_network_per_page': 678 case 'users_network_per_page': 679 case 'site_users_network_per_page': 680 case 'plugins_network_per_page': 681 case 'themes_network_per_page': 682 case 'site_themes_network_per_page': 683 $value = (int) $value; 684 if ( $value < 1 || $value > 999 ) { 685 return; 686 } 687 break; 688 default: 689 /** 690 * Filters a screen option value before it is set. 691 * 692 * The filter can also be used to modify non-standard [items]_per_page 693 * settings. See the parent function for a full list of standard options. 694 * 695 * Returning false to the filter will skip saving the current option. 696 * 697 * @since 2.8.0 698 * 699 * @see set_screen_options() 700 * 701 * @param bool $keep Whether to save or skip saving the screen option value. Default false. 702 * @param string $option The option name. 703 * @param int $value The number of rows to use. 704 */ 705 $value = apply_filters( 'set-screen-option', false, $option, $value ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 706 707 if ( false === $value ) { 708 return; 709 } 710 break; 711 } 712 713 update_user_meta( $user->ID, $option, $value ); 714 715 $url = remove_query_arg( array( 'pagenum', 'apage', 'paged' ), wp_get_referer() ); 716 if ( isset( $_POST['mode'] ) ) { 717 $url = add_query_arg( array( 'mode' => $_POST['mode'] ), $url ); 718 } 719 720 wp_safe_redirect( $url ); 721 exit; 722 } 723 } 724 725 /** 726 * Check if rewrite rule for WordPress already exists in the IIS 7+ configuration file 727 * 728 * @since 2.8.0 729 * 730 * @return bool 731 * @param string $filename The file path to the configuration file 732 */ 733 function iis7_rewrite_rule_exists( $filename ) { 734 if ( ! file_exists( $filename ) ) { 735 return false; 736 } 737 if ( ! class_exists( 'DOMDocument', false ) ) { 738 return false; 739 } 740 741 $doc = new DOMDocument(); 742 if ( $doc->load( $filename ) === false ) { 743 return false; 744 } 745 $xpath = new DOMXPath( $doc ); 746 $rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 747 if ( $rules->length == 0 ) { 748 return false; 749 } else { 750 return true; 751 } 752 } 753 754 /** 755 * Delete WordPress rewrite rule from web.config file if it exists there 756 * 757 * @since 2.8.0 758 * 759 * @param string $filename Name of the configuration file 760 * @return bool 761 */ 762 function iis7_delete_rewrite_rule( $filename ) { 763 // If configuration file does not exist then rules also do not exist so there is nothing to delete 764 if ( ! file_exists( $filename ) ) { 765 return true; 766 } 767 768 if ( ! class_exists( 'DOMDocument', false ) ) { 769 return false; 770 } 771 772 $doc = new DOMDocument(); 773 $doc->preserveWhiteSpace = false; 774 775 if ( $doc->load( $filename ) === false ) { 776 return false; 777 } 778 $xpath = new DOMXPath( $doc ); 779 $rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 780 if ( $rules->length > 0 ) { 781 $child = $rules->item( 0 ); 782 $parent = $child->parentNode; 783 $parent->removeChild( $child ); 784 $doc->formatOutput = true; 785 saveDomDocument( $doc, $filename ); 786 } 787 return true; 788 } 789 790 /** 791 * Add WordPress rewrite rule to the IIS 7+ configuration file. 792 * 793 * @since 2.8.0 794 * 795 * @param string $filename The file path to the configuration file 796 * @param string $rewrite_rule The XML fragment with URL Rewrite rule 797 * @return bool 798 */ 799 function iis7_add_rewrite_rule( $filename, $rewrite_rule ) { 800 if ( ! class_exists( 'DOMDocument', false ) ) { 801 return false; 802 } 803 804 // If configuration file does not exist then we create one. 805 if ( ! file_exists( $filename ) ) { 806 $fp = fopen( $filename, 'w' ); 807 fwrite( $fp, '<configuration/>' ); 808 fclose( $fp ); 809 } 810 811 $doc = new DOMDocument(); 812 $doc->preserveWhiteSpace = false; 813 814 if ( $doc->load( $filename ) === false ) { 815 return false; 816 } 817 818 $xpath = new DOMXPath( $doc ); 819 820 // First check if the rule already exists as in that case there is no need to re-add it 821 $wordpress_rules = $xpath->query( '/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')] | /configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'WordPress\')]' ); 822 if ( $wordpress_rules->length > 0 ) { 823 return true; 824 } 825 826 // Check the XPath to the rewrite rule and create XML nodes if they do not exist 827 $xmlnodes = $xpath->query( '/configuration/system.webServer/rewrite/rules' ); 828 if ( $xmlnodes->length > 0 ) { 829 $rules_node = $xmlnodes->item( 0 ); 830 } else { 831 $rules_node = $doc->createElement( 'rules' ); 832 833 $xmlnodes = $xpath->query( '/configuration/system.webServer/rewrite' ); 834 if ( $xmlnodes->length > 0 ) { 835 $rewrite_node = $xmlnodes->item( 0 ); 836 $rewrite_node->appendChild( $rules_node ); 837 } else { 838 $rewrite_node = $doc->createElement( 'rewrite' ); 839 $rewrite_node->appendChild( $rules_node ); 840 841 $xmlnodes = $xpath->query( '/configuration/system.webServer' ); 842 if ( $xmlnodes->length > 0 ) { 843 $system_webServer_node = $xmlnodes->item( 0 ); 844 $system_webServer_node->appendChild( $rewrite_node ); 845 } else { 846 $system_webServer_node = $doc->createElement( 'system.webServer' ); 847 $system_webServer_node->appendChild( $rewrite_node ); 848 849 $xmlnodes = $xpath->query( '/configuration' ); 850 if ( $xmlnodes->length > 0 ) { 851 $config_node = $xmlnodes->item( 0 ); 852 $config_node->appendChild( $system_webServer_node ); 853 } else { 854 $config_node = $doc->createElement( 'configuration' ); 855 $doc->appendChild( $config_node ); 856 $config_node->appendChild( $system_webServer_node ); 857 } 858 } 859 } 860 } 861 862 $rule_fragment = $doc->createDocumentFragment(); 863 $rule_fragment->appendXML( $rewrite_rule ); 864 $rules_node->appendChild( $rule_fragment ); 865 866 $doc->encoding = 'UTF-8'; 867 $doc->formatOutput = true; 868 saveDomDocument( $doc, $filename ); 869 870 return true; 871 } 872 873 /** 874 * Saves the XML document into a file 875 * 876 * @since 2.8.0 877 * 878 * @param DOMDocument $doc 879 * @param string $filename 880 */ 881 function saveDomDocument( $doc, $filename ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid 882 $config = $doc->saveXML(); 883 $config = preg_replace( "/([^\r])\n/", "$1\r\n", $config ); 884 $fp = fopen( $filename, 'w' ); 885 fwrite( $fp, $config ); 886 fclose( $fp ); 887 } 888 889 /** 890 * Display the default admin color scheme picker (Used in user-edit.php) 891 * 892 * @since 3.0.0 893 * 894 * @global array $_wp_admin_css_colors 895 * 896 * @param int $user_id User ID. 897 */ 898 function admin_color_scheme_picker( $user_id ) { 899 global $_wp_admin_css_colors; 900 901 ksort( $_wp_admin_css_colors ); 902 903 if ( isset( $_wp_admin_css_colors['fresh'] ) ) { 904 // Set Default ('fresh') and Light should go first. 905 $_wp_admin_css_colors = array_filter( 906 array_merge( 907 array( 908 'fresh' => '', 909 'light' => '', 910 ), 911 $_wp_admin_css_colors 912 ) 913 ); 914 } 915 916 $current_color = get_user_option( 'admin_color', $user_id ); 917 918 if ( empty( $current_color ) || ! isset( $_wp_admin_css_colors[ $current_color ] ) ) { 919 $current_color = 'fresh'; 920 } 921 922 ?> 923 <fieldset id="color-picker" class="scheme-list"> 924 <legend class="screen-reader-text"><span><?php _e( 'Admin Color Scheme' ); ?></span></legend> 925 <?php 926 wp_nonce_field( 'save-color-scheme', 'color-nonce', false ); 927 foreach ( $_wp_admin_css_colors as $color => $color_info ) : 928 929 ?> 930 <div class="color-option <?php echo ( $color == $current_color ) ? 'selected' : ''; ?>"> 931 <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 ); ?> /> 932 <input type="hidden" class="css_url" value="<?php echo esc_url( $color_info->url ); ?>" /> 933 <input type="hidden" class="icon_colors" value="<?php echo esc_attr( wp_json_encode( array( 'icons' => $color_info->icon_colors ) ) ); ?>" /> 934 <label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label> 935 <table class="color-palette"> 936 <tr> 937 <?php 938 939 foreach ( $color_info->colors as $html_color ) { 940 ?> 941 <td style="background-color: <?php echo esc_attr( $html_color ); ?>"> </td> 942 <?php 943 } 944 945 ?> 946 </tr> 947 </table> 948 </div> 949 <?php 950 951 endforeach; 952 953 ?> 954 </fieldset> 955 <?php 956 } 957 958 /** 959 * 960 * @global array $_wp_admin_css_colors 961 */ 962 function wp_color_scheme_settings() { 963 global $_wp_admin_css_colors; 964 965 $color_scheme = get_user_option( 'admin_color' ); 966 967 // It's possible to have a color scheme set that is no longer registered. 968 if ( empty( $_wp_admin_css_colors[ $color_scheme ] ) ) { 969 $color_scheme = 'fresh'; 970 } 971 972 if ( ! empty( $_wp_admin_css_colors[ $color_scheme ]->icon_colors ) ) { 973 $icon_colors = $_wp_admin_css_colors[ $color_scheme ]->icon_colors; 974 } elseif ( ! empty( $_wp_admin_css_colors['fresh']->icon_colors ) ) { 975 $icon_colors = $_wp_admin_css_colors['fresh']->icon_colors; 976 } else { 977 // Fall back to the default set of icon colors if the default scheme is missing. 978 $icon_colors = array( 979 'base' => '#a0a5aa', 980 'focus' => '#00a0d2', 981 'current' => '#fff', 982 ); 983 } 984 985 echo '<script type="text/javascript">var _wpColorScheme = ' . wp_json_encode( array( 'icons' => $icon_colors ) ) . ";</script>\n"; 986 } 987 988 /** 989 * @since 3.3.0 990 */ 991 function _ipad_meta() { 992 if ( wp_is_mobile() ) { 993 ?> 994 <meta name="viewport" id="viewport-meta" content="width=device-width, initial-scale=1"> 995 <?php 996 } 997 } 998 999 /** 1000 * Check lock status for posts displayed on the Posts screen 1001 * 1002 * @since 3.6.0 1003 * 1004 * @param array $response The Heartbeat response. 1005 * @param array $data The $_POST data sent. 1006 * @param string $screen_id The screen id. 1007 * @return array The Heartbeat response. 1008 */ 1009 function wp_check_locked_posts( $response, $data, $screen_id ) { 1010 $checked = array(); 1011 1012 if ( array_key_exists( 'wp-check-locked-posts', $data ) && is_array( $data['wp-check-locked-posts'] ) ) { 1013 foreach ( $data['wp-check-locked-posts'] as $key ) { 1014 $post_id = absint( substr( $key, 5 ) ); 1015 if ( ! $post_id ) { 1016 continue; 1017 } 1018 1019 $user_id = wp_check_post_lock( $post_id ); 1020 if ( $user_id ) { 1021 $user = get_userdata( $user_id ); 1022 if ( $user && current_user_can( 'edit_post', $post_id ) ) { 1023 $send = array( 1024 /* translators: %s: User's display name. */ 1025 'text' => sprintf( __( '%s is currently editing' ), $user->display_name ), 1026 ); 1027 1028 $avatar = get_avatar( $user->ID, 18 ); 1029 if ( $avatar && preg_match( "|src='([^']+)'|", $avatar, $matches ) ) { 1030 $send['avatar_src'] = $matches[1]; 1031 } 1032 1033 $checked[ $key ] = $send; 1034 } 1035 } 1036 } 1037 } 1038 1039 if ( ! empty( $checked ) ) { 1040 $response['wp-check-locked-posts'] = $checked; 1041 } 1042 1043 return $response; 1044 } 1045 1046 /** 1047 * Check lock status on the New/Edit Post screen and refresh the lock 1048 * 1049 * @since 3.6.0 1050 * 1051 * @param array $response The Heartbeat response. 1052 * @param array $data The $_POST data sent. 1053 * @param string $screen_id The screen id. 1054 * @return array The Heartbeat response. 1055 */ 1056 function wp_refresh_post_lock( $response, $data, $screen_id ) { 1057 if ( array_key_exists( 'wp-refresh-post-lock', $data ) ) { 1058 $received = $data['wp-refresh-post-lock']; 1059 $send = array(); 1060 1061 $post_id = absint( $received['post_id'] ); 1062 if ( ! $post_id ) { 1063 return $response; 1064 } 1065 1066 if ( ! current_user_can( 'edit_post', $post_id ) ) { 1067 return $response; 1068 } 1069 1070 $user_id = wp_check_post_lock( $post_id ); 1071 $user = get_userdata( $user_id ); 1072 if ( $user ) { 1073 $error = array( 1074 /* translators: %s: User's display name. */ 1075 'text' => sprintf( __( '%s has taken over and is currently editing.' ), $user->display_name ), 1076 ); 1077 1078 $avatar = get_avatar( $user->ID, 64 ); 1079 if ( $avatar ) { 1080 if ( preg_match( "|src='([^']+)'|", $avatar, $matches ) ) { 1081 $error['avatar_src'] = $matches[1]; 1082 } 1083 } 1084 1085 $send['lock_error'] = $error; 1086 } else { 1087 $new_lock = wp_set_post_lock( $post_id ); 1088 if ( $new_lock ) { 1089 $send['new_lock'] = implode( ':', $new_lock ); 1090 } 1091 } 1092 1093 $response['wp-refresh-post-lock'] = $send; 1094 } 1095 1096 return $response; 1097 } 1098 1099 /** 1100 * Check nonce expiration on the New/Edit Post screen and refresh if needed 1101 * 1102 * @since 3.6.0 1103 * 1104 * @param array $response The Heartbeat response. 1105 * @param array $data The $_POST data sent. 1106 * @param string $screen_id The screen id. 1107 * @return array The Heartbeat response. 1108 */ 1109 function wp_refresh_post_nonces( $response, $data, $screen_id ) { 1110 if ( array_key_exists( 'wp-refresh-post-nonces', $data ) ) { 1111 $received = $data['wp-refresh-post-nonces']; 1112 $response['wp-refresh-post-nonces'] = array( 'check' => 1 ); 1113 1114 $post_id = absint( $received['post_id'] ); 1115 if ( ! $post_id ) { 1116 return $response; 1117 } 1118 1119 if ( ! current_user_can( 'edit_post', $post_id ) ) { 1120 return $response; 1121 } 1122 1123 $response['wp-refresh-post-nonces'] = array( 1124 'replace' => array( 1125 'getpermalinknonce' => wp_create_nonce( 'getpermalink' ), 1126 'samplepermalinknonce' => wp_create_nonce( 'samplepermalink' ), 1127 'closedpostboxesnonce' => wp_create_nonce( 'closedpostboxes' ), 1128 '_ajax_linking_nonce' => wp_create_nonce( 'internal-linking' ), 1129 '_wpnonce' => wp_create_nonce( 'update-post_' . $post_id ), 1130 ), 1131 ); 1132 } 1133 1134 return $response; 1135 } 1136 1137 /** 1138 * Add the latest Heartbeat and REST-API nonce to the Heartbeat response. 1139 * 1140 * @since 5.0.0 1141 * 1142 * @param array $response The Heartbeat response. 1143 * @return array The Heartbeat response. 1144 */ 1145 function wp_refresh_heartbeat_nonces( $response ) { 1146 // Refresh the Rest API nonce. 1147 $response['rest_nonce'] = wp_create_nonce( 'wp_rest' ); 1148 1149 // Refresh the Heartbeat nonce. 1150 $response['heartbeat_nonce'] = wp_create_nonce( 'heartbeat-nonce' ); 1151 return $response; 1152 } 1153 1154 /** 1155 * Disable suspension of Heartbeat on the Add/Edit Post screens. 1156 * 1157 * @since 3.8.0 1158 * 1159 * @global string $pagenow 1160 * 1161 * @param array $settings An array of Heartbeat settings. 1162 * @return array Filtered Heartbeat settings. 1163 */ 1164 function wp_heartbeat_set_suspension( $settings ) { 1165 global $pagenow; 1166 1167 if ( 'post.php' === $pagenow || 'post-new.php' === $pagenow ) { 1168 $settings['suspension'] = 'disable'; 1169 } 1170 1171 return $settings; 1172 } 1173 1174 /** 1175 * Autosave with heartbeat 1176 * 1177 * @since 3.9.0 1178 * 1179 * @param array $response The Heartbeat response. 1180 * @param array $data The $_POST data sent. 1181 * @return array The Heartbeat response. 1182 */ 1183 function heartbeat_autosave( $response, $data ) { 1184 if ( ! empty( $data['wp_autosave'] ) ) { 1185 $saved = wp_autosave( $data['wp_autosave'] ); 1186 1187 if ( is_wp_error( $saved ) ) { 1188 $response['wp_autosave'] = array( 1189 'success' => false, 1190 'message' => $saved->get_error_message(), 1191 ); 1192 } elseif ( empty( $saved ) ) { 1193 $response['wp_autosave'] = array( 1194 'success' => false, 1195 'message' => __( 'Error while saving.' ), 1196 ); 1197 } else { 1198 /* translators: Draft saved date format, see https://secure.php.net/date */ 1199 $draft_saved_date_format = __( 'g:i:s a' ); 1200 $response['wp_autosave'] = array( 1201 'success' => true, 1202 /* translators: %s: Date and time. */ 1203 'message' => sprintf( __( 'Draft saved at %s.' ), date_i18n( $draft_saved_date_format ) ), 1204 ); 1205 } 1206 } 1207 1208 return $response; 1209 } 1210 1211 /** 1212 * Remove single-use URL parameters and create canonical link based on new URL. 1213 * 1214 * Remove specific query string parameters from a URL, create the canonical link, 1215 * put it in the admin header, and change the current URL to match. 1216 * 1217 * @since 4.2.0 1218 */ 1219 function wp_admin_canonical_url() { 1220 $removable_query_args = wp_removable_query_args(); 1221 1222 if ( empty( $removable_query_args ) ) { 1223 return; 1224 } 1225 1226 // Ensure we're using an absolute URL. 1227 $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1228 $filtered_url = remove_query_arg( $removable_query_args, $current_url ); 1229 ?> 1230 <link id="wp-admin-canonical" rel="canonical" href="<?php echo esc_url( $filtered_url ); ?>" /> 1231 <script> 1232 if ( window.history.replaceState ) { 1233 window.history.replaceState( null, null, document.getElementById( 'wp-admin-canonical' ).href + window.location.hash ); 1234 } 1235 </script> 1236 <?php 1237 } 1238 1239 /** 1240 * Send a referrer policy header so referrers are not sent externally from administration screens. 1241 * 1242 * @since 4.9.0 1243 */ 1244 function wp_admin_headers() { 1245 $policy = 'strict-origin-when-cross-origin'; 1246 1247 /** 1248 * Filters the admin referrer policy header value. 1249 * 1250 * @since 4.9.0 1251 * @since 4.9.5 The default value was changed to 'strict-origin-when-cross-origin'. 1252 * 1253 * @link https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy 1254 * 1255 * @param string $policy The admin referrer policy header value. Default 'strict-origin-when-cross-origin'. 1256 */ 1257 $policy = apply_filters( 'admin_referrer_policy', $policy ); 1258 1259 header( sprintf( 'Referrer-Policy: %s', $policy ) ); 1260 } 1261 1262 /** 1263 * Outputs JS that reloads the page if the user navigated to it with the Back or Forward button. 1264 * 1265 * Used on the Edit Post and Add New Post screens. Needed to ensure the page is not loaded from browser cache, 1266 * so the post title and editor content are the last saved versions. Ideally this script should run first in the head. 1267 * 1268 * @since 4.6.0 1269 */ 1270 function wp_page_reload_on_back_button_js() { 1271 ?> 1272 <script> 1273 if ( typeof performance !== 'undefined' && performance.navigation && performance.navigation.type === 2 ) { 1274 document.location.reload( true ); 1275 } 1276 </script> 1277 <?php 1278 } 1279 1280 /** 1281 * Send a confirmation request email when a change of site admin email address is attempted. 1282 * 1283 * The new site admin address will not become active until confirmed. 1284 * 1285 * @since 3.0.0 1286 * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific. 1287 * 1288 * @param string $old_value The old site admin email address. 1289 * @param string $value The proposed new site admin email address. 1290 */ 1291 function update_option_new_admin_email( $old_value, $value ) { 1292 if ( $value == get_option( 'admin_email' ) || ! is_email( $value ) ) { 1293 return; 1294 } 1295 1296 $hash = md5( $value . time() . wp_rand() ); 1297 $new_admin_email = array( 1298 'hash' => $hash, 1299 'newemail' => $value, 1300 ); 1301 update_option( 'adminhash', $new_admin_email ); 1302 1303 $switched_locale = switch_to_locale( get_user_locale() ); 1304 1305 /* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */ 1306 $email_text = __( 1307 'Howdy ###USERNAME###, 1308 1309 You recently requested to have the administration email address on 1310 your site changed. 1311 1312 If this is correct, please click on the following link to change it: 1313 ###ADMIN_URL### 1314 1315 You can safely ignore and delete this email if you do not want to 1316 take this action. 1317 1318 This email has been sent to ###EMAIL### 1319 1320 Regards, 1321 All at ###SITENAME### 1322 ###SITEURL###' 1323 ); 1324 1325 /** 1326 * Filters the text of the email sent when a change of site admin email address is attempted. 1327 * 1328 * The following strings have a special meaning and will get replaced dynamically: 1329 * ###USERNAME### The current user's username. 1330 * ###ADMIN_URL### The link to click on to confirm the email change. 1331 * ###EMAIL### The proposed new site admin email address. 1332 * ###SITENAME### The name of the site. 1333 * ###SITEURL### The URL to the site. 1334 * 1335 * @since MU (3.0.0) 1336 * @since 4.9.0 This filter is no longer Multisite specific. 1337 * 1338 * @param string $email_text Text in the email. 1339 * @param array $new_admin_email { 1340 * Data relating to the new site admin email address. 1341 * 1342 * @type string $hash The secure hash used in the confirmation link URL. 1343 * @type string $newemail The proposed new site admin email address. 1344 * } 1345 */ 1346 $content = apply_filters( 'new_admin_email_content', $email_text, $new_admin_email ); 1347 1348 $current_user = wp_get_current_user(); 1349 $content = str_replace( '###USERNAME###', $current_user->user_login, $content ); 1350 $content = str_replace( '###ADMIN_URL###', esc_url( self_admin_url( 'options.php?adminhash=' . $hash ) ), $content ); 1351 $content = str_replace( '###EMAIL###', $value, $content ); 1352 $content = str_replace( '###SITENAME###', wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), $content ); 1353 $content = str_replace( '###SITEURL###', home_url(), $content ); 1354 1355 wp_mail( 1356 $value, 1357 sprintf( 1358 /* translators: New admin email address notification email subject. %s: Site title. */ 1359 __( '[%s] New Admin Email Address' ), 1360 wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ) 1361 ), 1362 $content 1363 ); 1364 1365 if ( $switched_locale ) { 1366 restore_previous_locale(); 1367 } 1368 } 1369 1370 /** 1371 * Appends '(Draft)' to draft page titles in the privacy page dropdown 1372 * so that unpublished content is obvious. 1373 * 1374 * @since 4.9.8 1375 * @access private 1376 * 1377 * @param string $title Page title. 1378 * @param WP_Post $page Page data object. 1379 * 1380 * @return string Page title. 1381 */ 1382 function _wp_privacy_settings_filter_draft_page_titles( $title, $page ) { 1383 if ( 'draft' === $page->post_status && 'privacy' === get_current_screen()->id ) { 1384 /* translators: %s: Page title. */ 1385 $title = sprintf( __( '%s (Draft)' ), $title ); 1386 } 1387 1388 return $title; 1389 } 1390 1391 /** 1392 * Checks if the user needs to update PHP. 1393 * 1394 * @since 5.1.0 1395 * @since 5.1.1 Added the {@see 'wp_is_php_version_acceptable'} filter. 1396 * 1397 * @return array|false $response Array of PHP version data. False on failure. 1398 */ 1399 function wp_check_php_version() { 1400 $version = phpversion(); 1401 $key = md5( $version ); 1402 1403 $response = get_site_transient( 'php_check_' . $key ); 1404 if ( false === $response ) { 1405 $url = 'http://api.wordpress.org/core/serve-happy/1.0/'; 1406 if ( wp_http_supports( array( 'ssl' ) ) ) { 1407 $url = set_url_scheme( $url, 'https' ); 1408 } 1409 1410 $url = add_query_arg( 'php_version', $version, $url ); 1411 1412 $response = wp_remote_get( $url ); 1413 1414 if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { 1415 return false; 1416 } 1417 1418 /** 1419 * Response should be an array with: 1420 * 'recommended_version' - string - The PHP version recommended by WordPress. 1421 * 'is_supported' - boolean - Whether the PHP version is actively supported. 1422 * 'is_secure' - boolean - Whether the PHP version receives security updates. 1423 * 'is_acceptable' - boolean - Whether the PHP version is still acceptable for WordPress. 1424 */ 1425 $response = json_decode( wp_remote_retrieve_body( $response ), true ); 1426 1427 if ( ! is_array( $response ) ) { 1428 return false; 1429 } 1430 1431 set_site_transient( 'php_check_' . $key, $response, WEEK_IN_SECONDS ); 1432 } 1433 1434 if ( isset( $response['is_acceptable'] ) && $response['is_acceptable'] ) { 1435 /** 1436 * Filters whether the active PHP version is considered acceptable by WordPress. 1437 * 1438 * Returning false will trigger a PHP version warning to show up in the admin dashboard to administrators. 1439 * 1440 * This filter is only run if the wordpress.org Serve Happy API considers the PHP version acceptable, ensuring 1441 * that this filter can only make this check stricter, but not loosen it. 1442 * 1443 * @since 5.1.1 1444 * 1445 * @param bool $is_acceptable Whether the PHP version is considered acceptable. Default true. 1446 * @param string $version PHP version checked. 1447 */ 1448 $response['is_acceptable'] = (bool) apply_filters( 'wp_is_php_version_acceptable', true, $version ); 1449 } 1450 1451 return $response; 1452 }
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| Generated: Sat Jan 18 01:00:03 2020 | Cross-referenced by PHPXref 0.7.1 |