Description: Misc WordPress Administration API.
1 <?php 2 /** 3 * Misc WordPress Administration API. 4 * 5 * @package WordPress 6 * @subpackage Administration 7 */ 8 9 /** 10 * {@internal Missing Short Description}} 11 * 12 * @since 2.0.0 13 * 14 * @return unknown 15 */ 16 function got_mod_rewrite() { 17 $got_rewrite = apache_mod_loaded('mod_rewrite', true); 18 return apply_filters('got_rewrite', $got_rewrite); 19 } 20 21 /** 22 * {@internal Missing Short Description}} 23 * 24 * @since 1.5.0 25 * 26 * @param unknown_type $filename 27 * @param unknown_type $marker 28 * @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers. 29 */ 30 function extract_from_markers( $filename, $marker ) { 31 $result = array (); 32 33 if (!file_exists( $filename ) ) { 34 return $result; 35 } 36 37 if ( $markerdata = explode( "\n", implode( '', file( $filename ) ) )); 38 { 39 $state = false; 40 foreach ( $markerdata as $markerline ) { 41 if (strpos($markerline, '# END ' . $marker) !== false) 42 $state = false; 43 if ( $state ) 44 $result[] = $markerline; 45 if (strpos($markerline, '# BEGIN ' . $marker) !== false) 46 $state = true; 47 } 48 } 49 50 return $result; 51 } 52 53 /** 54 * {@internal Missing Short Description}} 55 * 56 * Inserts an array of strings into a file (.htaccess ), placing it between 57 * BEGIN and END markers. Replaces existing marked info. Retains surrounding 58 * data. Creates file if none exists. 59 * 60 * @since 1.5.0 61 * 62 * @param unknown_type $filename 63 * @param unknown_type $marker 64 * @param unknown_type $insertion 65 * @return bool True on write success, false on failure. 66 */ 67 function insert_with_markers( $filename, $marker, $insertion ) { 68 if (!file_exists( $filename ) || is_writeable( $filename ) ) { 69 if (!file_exists( $filename ) ) { 70 $markerdata = ''; 71 } else { 72 $markerdata = explode( "\n", implode( '', file( $filename ) ) ); 73 } 74 75 if ( !$f = @fopen( $filename, 'w' ) ) 76 return false; 77 78 $foundit = false; 79 if ( $markerdata ) { 80 $state = true; 81 foreach ( $markerdata as $n => $markerline ) { 82 if (strpos($markerline, '# BEGIN ' . $marker) !== false) 83 $state = false; 84 if ( $state ) { 85 if ( $n + 1 < count( $markerdata ) ) 86 fwrite( $f, "{$markerline}\n" ); 87 else 88 fwrite( $f, "{$markerline}" ); 89 } 90 if (strpos($markerline, '# END ' . $marker) !== false) { 91 fwrite( $f, "# BEGIN {$marker}\n" ); 92 if ( is_array( $insertion )) 93 foreach ( $insertion as $insertline ) 94 fwrite( $f, "{$insertline}\n" ); 95 fwrite( $f, "# END {$marker}\n" ); 96 $state = true; 97 $foundit = true; 98 } 99 } 100 } 101 if (!$foundit) { 102 fwrite( $f, "\n# BEGIN {$marker}\n" ); 103 foreach ( $insertion as $insertline ) 104 fwrite( $f, "{$insertline}\n" ); 105 fwrite( $f, "# END {$marker}\n" ); 106 } 107 fclose( $f ); 108 return true; 109 } else { 110 return false; 111 } 112 } 113 114 /** 115 * Updates the htaccess file with the current rules if it is writable. 116 * 117 * Always writes to the file if it exists and is writable to ensure that we 118 * blank out old rules. 119 * 120 * @since 1.5.0 121 */ 122 function save_mod_rewrite_rules() { 123 if ( is_multisite() ) 124 return; 125 126 global $wp_rewrite; 127 128 $home_path = get_home_path(); 129 $htaccess_file = $home_path.'.htaccess'; 130 131 // If the file doesn't already exist check for write access to the directory and whether we have some rules. 132 // else check for write access to the file. 133 if ((!file_exists($htaccess_file) && is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks()) || is_writable($htaccess_file)) { 134 if ( got_mod_rewrite() ) { 135 $rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() ); 136 return insert_with_markers( $htaccess_file, 'WordPress', $rules ); 137 } 138 } 139 140 return false; 141 } 142 143 /** 144 * Updates the IIS web.config file with the current rules if it is writable. 145 * If the permalinks do not require rewrite rules then the rules are deleted from the web.config file. 146 * 147 * @since 2.8.0 148 * 149 * @return bool True if web.config was updated successfully 150 */ 151 function iis7_save_url_rewrite_rules(){ 152 if ( is_multisite() ) 153 return; 154 155 global $wp_rewrite; 156 157 $home_path = get_home_path(); 158 $web_config_file = $home_path . 'web.config'; 159 160 // Using win_is_writable() instead of is_writable() because of a bug in Windows PHP 161 if ( iis7_supports_permalinks() && ( ( ! file_exists($web_config_file) && win_is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable($web_config_file) ) ) { 162 $rule = $wp_rewrite->iis7_url_rewrite_rules(false, '', ''); 163 if ( ! empty($rule) ) { 164 return iis7_add_rewrite_rule($web_config_file, $rule); 165 } else { 166 return iis7_delete_rewrite_rule($web_config_file); 167 } 168 } 169 return false; 170 } 171 172 /** 173 * {@internal Missing Short Description}} 174 * 175 * @since 1.5.0 176 * 177 * @param unknown_type $file 178 */ 179 function update_recently_edited( $file ) { 180 $oldfiles = (array ) get_option( 'recently_edited' ); 181 if ( $oldfiles ) { 182 $oldfiles = array_reverse( $oldfiles ); 183 $oldfiles[] = $file; 184 $oldfiles = array_reverse( $oldfiles ); 185 $oldfiles = array_unique( $oldfiles ); 186 if ( 5 < count( $oldfiles )) 187 array_pop( $oldfiles ); 188 } else { 189 $oldfiles[] = $file; 190 } 191 update_option( 'recently_edited', $oldfiles ); 192 } 193 194 /** 195 * If siteurl, home or page_on_front changed, flush rewrite rules. 196 * 197 * @since 2.1.0 198 * 199 * @param string $old_value 200 * @param string $value 201 */ 202 function update_home_siteurl( $old_value, $value ) { 203 if ( defined( "WP_INSTALLING" ) ) 204 return; 205 206 // If home changed, write rewrite rules to new location. 207 flush_rewrite_rules(); 208 } 209 210 add_action( 'update_option_home', 'update_home_siteurl', 10, 2 ); 211 add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 ); 212 add_action( 'update_option_page_on_front', 'update_home_siteurl', 10, 2 ); 213 214 /** 215 * Shorten an URL, to be used as link text 216 * 217 * @since 1.2.1 218 * 219 * @param string $url 220 * @return string 221 */ 222 function url_shorten( $url ) { 223 $short_url = str_replace( 'http://', '', stripslashes( $url )); 224 $short_url = str_replace( 'www.', '', $short_url ); 225 $short_url = untrailingslashit( $short_url ); 226 if ( strlen( $short_url ) > 35 ) 227 $short_url = substr( $short_url, 0, 32 ) . '...'; 228 return $short_url; 229 } 230 231 /** 232 * Resets global variables based on $_GET and $_POST 233 * 234 * This function resets global variables based on the names passed 235 * in the $vars array to the value of $_POST[$var] or $_GET[$var] or '' 236 * if neither is defined. 237 * 238 * @since 2.0.0 239 * 240 * @param array $vars An array of globals to reset. 241 */ 242 function wp_reset_vars( $vars ) { 243 for ( $i=0; $i<count( $vars ); $i += 1 ) { 244 $var = $vars[$i]; 245 global $$var; 246 247 if ( empty( $_POST[$var] ) ) { 248 if ( empty( $_GET[$var] ) ) 249 $$var = ''; 250 else 251 $$var = $_GET[$var]; 252 } else { 253 $$var = $_POST[$var]; 254 } 255 } 256 } 257 258 /** 259 * {@internal Missing Short Description}} 260 * 261 * @since 2.1.0 262 * 263 * @param unknown_type $message 264 */ 265 function show_message($message) { 266 if ( is_wp_error($message) ){ 267 if ( $message->get_error_data() ) 268 $message = $message->get_error_message() . ': ' . $message->get_error_data(); 269 else 270 $message = $message->get_error_message(); 271 } 272 echo "<p>$message</p>\n"; 273 wp_ob_end_flush_all(); 274 flush(); 275 } 276 277 function wp_doc_link_parse( $content ) { 278 if ( !is_string( $content ) || empty( $content ) ) 279 return array(); 280 281 if ( !function_exists('token_get_all') ) 282 return array(); 283 284 $tokens = token_get_all( $content ); 285 $functions = array(); 286 $ignore_functions = array(); 287 for ( $t = 0, $count = count( $tokens ); $t < $count; $t++ ) { 288 if ( !is_array( $tokens[$t] ) ) continue; 289 if ( T_STRING == $tokens[$t][0] && ( '(' == $tokens[ $t + 1 ] || '(' == $tokens[ $t + 2 ] ) ) { 290 // If it's a function or class defined locally, there's not going to be any docs available 291 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] ) ) { 292 $ignore_functions[] = $tokens[$t][1]; 293 } 294 // Add this to our stack of unique references 295 $functions[] = $tokens[$t][1]; 296 } 297 } 298 299 $functions = array_unique( $functions ); 300 sort( $functions ); 301 $ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions ); 302 $ignore_functions = array_unique( $ignore_functions ); 303 304 $out = array(); 305 foreach ( $functions as $function ) { 306 if ( in_array( $function, $ignore_functions ) ) 307 continue; 308 $out[] = $function; 309 } 310 311 return $out; 312 } 313 314 /** 315 * Saves option for number of rows when listing posts, pages, comments, etc. 316 * 317 * @since 2.8 318 **/ 319 function set_screen_options() { 320 321 if ( isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options']) ) { 322 check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' ); 323 324 if ( !$user = wp_get_current_user() ) 325 return; 326 $option = $_POST['wp_screen_options']['option']; 327 $value = $_POST['wp_screen_options']['value']; 328 329 if ( $option != sanitize_key( $option ) ) 330 return; 331 332 $map_option = $option; 333 $type = str_replace('edit_', '', $map_option); 334 $type = str_replace('_per_page', '', $type); 335 if ( in_array( $type, get_taxonomies() ) ) 336 $map_option = 'edit_tags_per_page'; 337 elseif ( in_array( $type, get_post_types() ) ) 338 $map_option = 'edit_per_page'; 339 else 340 $option = str_replace('-', '_', $option); 341 342 switch ( $map_option ) { 343 case 'edit_per_page': 344 case 'users_per_page': 345 case 'edit_comments_per_page': 346 case 'upload_per_page': 347 case 'edit_tags_per_page': 348 case 'plugins_per_page': 349 // Network admin 350 case 'sites_network_per_page': 351 case 'users_network_per_page': 352 case 'site_users_network_per_page': 353 case 'plugins_network_per_page': 354 case 'themes_network_per_page': 355 case 'site_themes_network_per_page': 356 $value = (int) $value; 357 if ( $value < 1 || $value > 999 ) 358 return; 359 break; 360 default: 361 $value = apply_filters('set-screen-option', false, $option, $value); 362 if ( false === $value ) 363 return; 364 break; 365 } 366 367 update_user_meta($user->ID, $option, $value); 368 wp_safe_redirect( remove_query_arg( array('pagenum', 'apage', 'paged'), wp_get_referer() ) ); 369 exit; 370 } 371 } 372 373 /** 374 * Check if rewrite rule for WordPress already exists in the IIS 7 configuration file 375 * 376 * @since 2.8.0 377 * 378 * @return bool 379 * @param string $filename The file path to the configuration file 380 */ 381 function iis7_rewrite_rule_exists($filename) { 382 if ( ! file_exists($filename) ) 383 return false; 384 if ( ! class_exists('DOMDocument') ) 385 return false; 386 387 $doc = new DOMDocument(); 388 if ( $doc->load($filename) === false ) 389 return false; 390 $xpath = new DOMXPath($doc); 391 $rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]'); 392 if ( $rules->length == 0 ) 393 return false; 394 else 395 return true; 396 } 397 398 /** 399 * Delete WordPress rewrite rule from web.config file if it exists there 400 * 401 * @since 2.8.0 402 * 403 * @param string $filename Name of the configuration file 404 * @return bool 405 */ 406 function iis7_delete_rewrite_rule($filename) { 407 // If configuration file does not exist then rules also do not exist so there is nothing to delete 408 if ( ! file_exists($filename) ) 409 return true; 410 411 if ( ! class_exists('DOMDocument') ) 412 return false; 413 414 $doc = new DOMDocument(); 415 $doc->preserveWhiteSpace = false; 416 417 if ( $doc -> load($filename) === false ) 418 return false; 419 $xpath = new DOMXPath($doc); 420 $rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]'); 421 if ( $rules->length > 0 ) { 422 $child = $rules->item(0); 423 $parent = $child->parentNode; 424 $parent->removeChild($child); 425 $doc->formatOutput = true; 426 saveDomDocument($doc, $filename); 427 } 428 return true; 429 } 430 431 /** 432 * Add WordPress rewrite rule to the IIS 7 configuration file. 433 * 434 * @since 2.8.0 435 * 436 * @param string $filename The file path to the configuration file 437 * @param string $rewrite_rule The XML fragment with URL Rewrite rule 438 * @return bool 439 */ 440 function iis7_add_rewrite_rule($filename, $rewrite_rule) { 441 if ( ! class_exists('DOMDocument') ) 442 return false; 443 444 // If configuration file does not exist then we create one. 445 if ( ! file_exists($filename) ) { 446 $fp = fopen( $filename, 'w'); 447 fwrite($fp, '<configuration/>'); 448 fclose($fp); 449 } 450 451 $doc = new DOMDocument(); 452 $doc->preserveWhiteSpace = false; 453 454 if ( $doc->load($filename) === false ) 455 return false; 456 457 $xpath = new DOMXPath($doc); 458 459 // First check if the rule already exists as in that case there is no need to re-add it 460 $wordpress_rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]'); 461 if ( $wordpress_rules->length > 0 ) 462 return true; 463 464 // Check the XPath to the rewrite rule and create XML nodes if they do not exist 465 $xmlnodes = $xpath->query('/configuration/system.webServer/rewrite/rules'); 466 if ( $xmlnodes->length > 0 ) { 467 $rules_node = $xmlnodes->item(0); 468 } else { 469 $rules_node = $doc->createElement('rules'); 470 471 $xmlnodes = $xpath->query('/configuration/system.webServer/rewrite'); 472 if ( $xmlnodes->length > 0 ) { 473 $rewrite_node = $xmlnodes->item(0); 474 $rewrite_node->appendChild($rules_node); 475 } else { 476 $rewrite_node = $doc->createElement('rewrite'); 477 $rewrite_node->appendChild($rules_node); 478 479 $xmlnodes = $xpath->query('/configuration/system.webServer'); 480 if ( $xmlnodes->length > 0 ) { 481 $system_webServer_node = $xmlnodes->item(0); 482 $system_webServer_node->appendChild($rewrite_node); 483 } else { 484 $system_webServer_node = $doc->createElement('system.webServer'); 485 $system_webServer_node->appendChild($rewrite_node); 486 487 $xmlnodes = $xpath->query('/configuration'); 488 if ( $xmlnodes->length > 0 ) { 489 $config_node = $xmlnodes->item(0); 490 $config_node->appendChild($system_webServer_node); 491 } else { 492 $config_node = $doc->createElement('configuration'); 493 $doc->appendChild($config_node); 494 $config_node->appendChild($system_webServer_node); 495 } 496 } 497 } 498 } 499 500 $rule_fragment = $doc->createDocumentFragment(); 501 $rule_fragment->appendXML($rewrite_rule); 502 $rules_node->appendChild($rule_fragment); 503 504 $doc->encoding = "UTF-8"; 505 $doc->formatOutput = true; 506 saveDomDocument($doc, $filename); 507 508 return true; 509 } 510 511 /** 512 * Saves the XML document into a file 513 * 514 * @since 2.8.0 515 * 516 * @param DOMDocument $doc 517 * @param string $filename 518 */ 519 function saveDomDocument($doc, $filename) { 520 $config = $doc->saveXML(); 521 $config = preg_replace("/([^\r])\n/", "$1\r\n", $config); 522 $fp = fopen($filename, 'w'); 523 fwrite($fp, $config); 524 fclose($fp); 525 } 526 527 /** 528 * Display the default admin color scheme picker (Used in user-edit.php) 529 * 530 * @since 3.0.0 531 */ 532 function admin_color_scheme_picker() { 533 global $_wp_admin_css_colors, $user_id; ?> 534 <fieldset><legend class="screen-reader-text"><span><?php _e('Admin Color Scheme')?></span></legend> 535 <?php 536 $current_color = get_user_option('admin_color', $user_id); 537 if ( empty($current_color) ) 538 $current_color = 'fresh'; 539 foreach ( $_wp_admin_css_colors as $color => $color_info ): ?> 540 <div class="color-option"><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); ?> /> 541 <table class="color-palette"> 542 <tr> 543 <?php foreach ( $color_info->colors as $html_color ): ?> 544 <td style="background-color: <?php echo esc_attr( $html_color ); ?>" title="<?php echo esc_attr( $color ); ?>"> </td> 545 <?php endforeach; ?> 546 </tr> 547 </table> 548 549 <label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label> 550 </div> 551 <?php endforeach; ?> 552 </fieldset> 553 <?php 554 } 555 556 function _ipad_meta() { 557 if ( wp_is_mobile() ) { 558 ?> 559 <meta name="viewport" id="viewport-meta" content="width=device-width, initial-scale=1"> 560 <?php 561 } 562 } 563 add_action('admin_head', '_ipad_meta');
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