wp-includes/class-wp-atom-server.php

   1 <?php
   2
   3 /**
   4  * WordPress AtomPub API implementation.
   5  *
   6  * @package WordPress
   7  * @subpackage Publishing
   8  * @since 2.2.0
   9  */
  10 class wp_atom_server {
  11
  12         /**
  13          * ATOM content type.
  14          *
  15          * @since 2.2.0
  16          * @var string
  17          */
  18         var $ATOM_CONTENT_TYPE = 'application/atom+xml';
  19
  20         /**
  21          * Categories ATOM content type.
  22          *
  23          * @since 2.2.0
  24          * @var string
  25          */
  26         var $CATEGORIES_CONTENT_TYPE = 'application/atomcat+xml';
  27
  28         /**
  29          * Service ATOM content type.
  30          *
  31          * @since 2.3.0
  32          * @var string
  33          */
  34         var $SERVICE_CONTENT_TYPE = 'application/atomsvc+xml';
  35
  36         /**
  37          * ATOM XML namespace.
  38          *
  39          * @since 2.3.0
  40          * @var string
  41          */
  42         var $ATOM_NS = 'http://www.w3.org/2005/Atom';
  43
  44         /**
  45          * ATOMPUB XML namespace.
  46          *
  47          * @since 2.3.0
  48          * @var string
  49          */
  50         var $ATOMPUB_NS = 'http://www.w3.org/2007/app';
  51
  52         /**
  53          * Entries path.
  54          *
  55          * @since 2.2.0
  56          * @var string
  57          */
  58         var $ENTRIES_PATH = "posts";
  59
  60         /**
  61          * Categories path.
  62          *
  63          * @since 2.2.0
  64          * @var string
  65          */
  66         var $CATEGORIES_PATH = "categories";
  67
  68         /**
  69          * Media path.
  70          *
  71          * @since 2.2.0
  72          * @var string
  73          */
  74         var $MEDIA_PATH = "attachments";
  75
  76         /**
  77          * Entry path.
  78          *
  79          * @since 2.2.0
  80          * @var string
  81          */
  82         var $ENTRY_PATH = "post";
  83
  84         /**
  85          * Service path.
  86          *
  87          * @since 2.2.0
  88          * @var string
  89          */
  90         var $SERVICE_PATH = "service";
  91
  92         /**
  93          * Media single path.
  94          *
  95          * @since 2.2.0
  96          * @var string
  97          */
  98         var $MEDIA_SINGLE_PATH = "attachment";
  99
 100         /**
 101          * ATOMPUB parameters.
 102          *
 103          * @since 2.2.0
 104          * @var array
 105          */
 106         var $params = array();
 107
 108         /**
 109          * Supported ATOMPUB media types.
 110          *
 111          * @since 2.3.0
 112          * @var array
 113          */
 114         var $media_content_types = array('image/*','audio/*','video/*');
 115
 116         /**
 117          * ATOMPUB content type(s).
 118          *
 119          * @since 2.2.0
 120          * @var array
 121          */
 122         var $atom_content_types = array('application/atom+xml');
 123
 124         /**
 125          * ATOMPUB methods.
 126          *
 127          * @since 2.2.0
 128          * @var unknown_type
 129          */
 130         var $selectors = array();
 131
 132         /**
 133          * Whether to do output.
 134          *
 135          * Support for head.
 136          *
 137          * @since 2.2.0
 138          * @var bool
 139          */
 140         var $do_output = true;
 141
 142         /**
 143          * Constructor - Sets up object properties.
 144          *
 145          * @since 2.2.0
 146          * @return AtomServer
 147          */
 148         function __construct() {
 149
 150                 $var_by_ref = explode( '/', $_SERVER['SCRIPT_NAME'] );
 151                 $this->script_name = array_pop( $var_by_ref );
 152                 $this->app_base = site_url( $this->script_name . '/' );
 153
 154                 $this->selectors = array(
 155                         '@/service$@' =>
 156                                 array('GET' => 'get_service'),
 157                         '@/categories$@' =>
 158                                 array('GET' => 'get_categories_xml'),
 159                         '@/post/(\d+)$@' =>
 160                                 array('GET' => 'get_post',
 161                                                 'PUT' => 'put_post',
 162                                                 'DELETE' => 'delete_post'),
 163                         '@/posts/?(\d+)?$@' =>
 164                                 array('GET' => 'get_posts',
 165                                                 'POST' => 'create_post'),
 166                         '@/attachments/?(\d+)?$@' =>
 167                                 array('GET' => 'get_attachment',
 168                                                 'POST' => 'create_attachment'),
 169                         '@/attachment/file/(\d+)$@' =>
 170                                 array('GET' => 'get_file'),
 171                         '@/attachment/(\d+)$@' =>
 172                                 array('GET' => 'get_attachment',
 173                                                 'PUT' => 'put_attachment',
 174                                                 'DELETE' => 'delete_attachment'),
 175                 );
 176         }
 177
 178         /**
 179          * Handle ATOMPUB request.
 180          *
 181          * @since 2.2.0
 182          */
 183         function handle_request() {
 184
 185                 if ( !empty( $_SERVER['ORIG_PATH_INFO'] ) )
 186                         $path = $_SERVER['ORIG_PATH_INFO'];
 187                 else
 188                         $path = $_SERVER['PATH_INFO'];
 189
 190                 $method = $_SERVER['REQUEST_METHOD'];
 191
 192                 $this->process_conditionals();
 193                 //$this->process_conditionals();
 194
 195                 // exception case for HEAD (treat exactly as GET, but don't output)
 196                 if ($method == 'HEAD') {
 197                         $this->do_output = false;
 198                         $method = 'GET';
 199                 }
 200
 201                 // redirect to /service in case no path is found.
 202                 if (strlen($path) == 0 || $path == '/')
 203                         $this->redirect($this->get_service_url());
 204
 205                 // check to see if AtomPub is enabled
 206                 if ( !get_option( 'enable_app' ) )
 207                         $this->forbidden( sprintf( __( 'AtomPub services are disabled on this site. An admin user can enable them at %s' ), admin_url('options-writing.php') ) );
 208
 209                 // dispatch
 210                 foreach ( $this->selectors as $regex => $funcs ) {
 211                         if ( preg_match($regex, $path, $matches) ) {
 212                                 if ( isset($funcs[$method]) ) {
 213
 214                                         // authenticate regardless of the operation and set the current
 215                                         // user. each handler will decide if auth is required or not.
 216                                         if ( !$this->authenticate() ) {
 217                                                 $this->auth_required('Credentials required.');
 218                                         }
 219
 220                                         array_shift($matches);
 221                                         call_user_func_array(array($this,$funcs[$method]), $matches);
 222                                         wp_die();
 223                                 } else {
 224                                         // only allow what we have handlers for...
 225                                         $this->not_allowed(array_keys($funcs));
 226                                 }
 227                         }
 228                 }
 229
 230                 // oops, nothing found
 231                 $this->not_found();
 232         }
 233
 234         /**
 235          * Retrieve XML for ATOMPUB service.
 236          *
 237          * @since 2.2.0
 238          */
 239         function get_service() {
 240
 241                 if ( !current_user_can( 'edit_posts' ) )
 242                         $this->auth_required( __( 'Sorry, you do not have the right to access this site.' ) );
 243
 244                 $entries_url = esc_attr($this->get_entries_url());
 245                 $categories_url = esc_attr($this->get_categories_url());
 246                 $media_url = esc_attr($this->get_attachments_url());
 247                 $accepted_media_types = '';
 248                 foreach ($this->media_content_types as $med) {
 249                         $accepted_media_types = $accepted_media_types . "<accept>" . $med . "</accept>";
 250                 }
 251                 $atom_prefix="atom";
 252                 $atom_blogname = get_bloginfo('name');
 253                 $service_doc = <<<EOD
 254 <service xmlns="$this->ATOMPUB_NS" xmlns:$atom_prefix="$this->ATOM_NS">
 255   <workspace>
 256     <$atom_prefix:title>$atom_blogname Workspace</$atom_prefix:title>
 257     <collection href="$entries_url">
 258       <$atom_prefix:title>$atom_blogname Posts</$atom_prefix:title>
 259       <accept>$this->ATOM_CONTENT_TYPE;type=entry</accept>
 260       <categories href="$categories_url" />
 261     </collection>
 262     <collection href="$media_url">
 263       <$atom_prefix:title>$atom_blogname Media</$atom_prefix:title>
 264       $accepted_media_types
 265     </collection>
 266   </workspace>
 267 </service>
 268
 269 EOD;
 270
 271                 $this->output($service_doc, $this->SERVICE_CONTENT_TYPE);
 272         }
 273
 274         /**
 275          * Retrieve categories list in XML format.
 276          *
 277          * @since 2.2.0
 278          */
 279         function get_categories_xml() {
 280
 281                 if ( !current_user_can( 'edit_posts' ) )
 282                         $this->auth_required( __( 'Sorry, you do not have the right to access this site.' ) );
 283
 284                 $home = esc_attr(get_bloginfo_rss('url'));
 285
 286                 $categories = "";
 287                 $cats = get_categories(array('hierarchical' => 0, 'hide_empty' => 0));
 288                 foreach ( (array) $cats as $cat ) {
 289                         $categories .= "    <category term=\"" . esc_attr($cat->name) . "\" />\n";
 290                 }
 291                 $output = <<<EOD
 292 <app:categories xmlns:app="$this->ATOMPUB_NS"
 293         xmlns="$this->ATOM_NS"
 294         fixed="yes" scheme="$home">
 295         $categories
 296 </app:categories>
 297 EOD;
 298                 $this->output($output, $this->CATEGORIES_CONTENT_TYPE);
 299         }
 300
 301         /**
 302          * Create new post.
 303          *
 304          * @since 2.2.0
 305          */
 306         function create_post() {
 307                 global $user_ID;
 308                 $this->get_accepted_content_type($this->atom_content_types);
 309
 310                 $parser = new AtomParser();
 311                 if ( !$parser->parse() )
 312                         $this->client_error();
 313
 314                 $entry = array_pop($parser->feed->entries);
 315
 316                 $publish = ! ( isset( $entry->draft ) && 'yes' == trim( $entry->draft ) );
 317                 $cap = ($publish) ? 'publish_posts' : 'edit_posts';
 318
 319                 if ( !current_user_can($cap) )
 320                         $this->auth_required(__('Sorry, you do not have the right to edit/publish new posts.'));
 321
 322                 $catnames = array();
 323                 if ( !empty( $entry->categories ) ) {
 324                         foreach ( $entry->categories as $cat ) {
 325                                 array_push($catnames, $cat["term"]);
 326                         }
 327                 }
 328
 329                 $wp_cats = get_categories(array('hide_empty' => false));
 330
 331                 $post_category = array();
 332
 333                 foreach ( $wp_cats as $cat ) {
 334                         if ( in_array($cat->name, $catnames) )
 335                                 array_push($post_category, $cat->term_id);
 336                 }
 337
 338                 $blog_ID = get_current_blog_id();
 339                 $post_status = ($publish) ? 'publish' : 'draft';
 340                 $post_author = (int) $user_ID;
 341
 342                 $post_title   = '';
 343                 $post_content = '';
 344                 $post_excerpt = '';
 345                 $pubtimes     = '';
 346
 347                 if ( isset( $entry->title ) && is_array( $entry->title ) && !empty( $entry->title[1] ) )
 348                         $post_title = (string) $entry->title[1];
 349                 if ( isset( $entry->content ) && is_array( $entry->content ) && !empty( $entry->content[1] ) )
 350                         $post_content = (string) $entry->content[1];
 351                 if ( isset( $entry->summary ) && is_array( $entry->summary ) && !empty( $entry->summary[1] ) )
 352                         $post_excerpt = (string) $entry->summary[1];
 353                 if ( !empty( $entry->published ) )
 354                         $pubtimes = (string) $entry->published;
 355
 356                 $pubtimes = $this->get_publish_time( $pubtimes );
 357
 358                 $post_date = $pubtimes[0];
 359                 $post_date_gmt = $pubtimes[1];
 360
 361                 if ( isset( $_SERVER['HTTP_SLUG'] ) )
 362                         $post_name = $_SERVER['HTTP_SLUG'];
 363
 364                 $post_data = compact('blog_ID', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_name');
 365
 366                 $this->escape($post_data);
 367
 368                 $postID = wp_insert_post($post_data);
 369                 if ( is_wp_error( $postID ) )
 370                         $this->internal_error($postID->get_error_message());
 371
 372                 if ( !$postID )
 373                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 374
 375                 // getting warning here about unable to set headers
 376                 // because something in the cache is printing to the buffer
 377                 // could we clean up wp_set_post_categories or cache to not print
 378                 // this could affect our ability to send back the right headers
 379                 @wp_set_post_categories($postID, $post_category);
 380
 381                 do_action( 'atompub_create_post', $postID, $entry );
 382
 383                 $output = $this->get_entry($postID);
 384
 385                 $this->created($postID, $output);
 386         }
 387
 388         /**
 389          * Retrieve post.
 390          *
 391          * @since 2.2.0
 392          *
 393          * @param int $postID Post ID.
 394          */
 395         function get_post($postID) {
 396                 global $entry;
 397
 398                 if ( ! get_post( $postID ) || ! current_user_can( 'edit_post', $postID ) )
 399                         $this->auth_required( __( 'Sorry, you do not have the right to access this post.' ) );
 400
 401                 $this->set_current_entry($postID);
 402                 $output = $this->get_entry($postID);
 403                 $this->output($output);
 404
 405         }
 406
 407         /**
 408          * Update post.
 409          *
 410          * @since 2.2.0
 411          *
 412          * @param int $postID Post ID.
 413          */
 414         function put_post($postID) {
 415                 // checked for valid content-types (atom+xml)
 416                 // quick check and exit
 417                 $this->get_accepted_content_type($this->atom_content_types);
 418
 419                 $parser = new AtomParser();
 420                 if ( !$parser->parse() )
 421                         $this->bad_request();
 422
 423                 $parsed = array_pop($parser->feed->entries);
 424
 425                 // check for not found
 426                 global $entry;
 427                 $this->set_current_entry($postID);
 428
 429                 if ( !current_user_can('edit_post', $postID) )
 430                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 431
 432                 $publish = ! ( isset($parsed->draft) && 'yes' == trim($parsed->draft) );
 433
 434                 if ( $publish && ! current_user_can( 'publish_posts' ) )
 435                         $this->auth_required( __( 'Sorry, you do not have the right to publish this post.' ) );
 436
 437                 $post_status = ($publish) ? 'publish' : 'draft';
 438
 439                 extract($entry);
 440
 441                 $post_title = $parsed->title[1];
 442                 $post_content = $parsed->content[1];
 443                 $post_excerpt = $parsed->summary[1];
 444                 $pubtimes = $this->get_publish_time($entry->published);
 445                 $post_date = $pubtimes[0];
 446                 $post_date_gmt = $pubtimes[1];
 447                 $pubtimes = $this->get_publish_time($parsed->updated);
 448                 $post_modified = $pubtimes[0];
 449                 $post_modified_gmt = $pubtimes[1];
 450
 451                 $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt');
 452                 $this->escape($postdata);
 453
 454                 $result = wp_update_post($postdata);
 455
 456                 if ( !$result )
 457                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.'));
 458
 459                 do_action( 'atompub_put_post', $ID, $parsed );
 460
 461                 $this->ok();
 462         }
 463
 464         /**
 465          * Remove post.
 466          *
 467          * @since 2.2.0
 468          *
 469          * @param int $postID Post ID.
 470          */
 471         function delete_post($postID) {
 472
 473                 // check for not found
 474                 global $entry;
 475                 $this->set_current_entry($postID);
 476
 477                 if ( !current_user_can('delete_post', $postID) )
 478                         $this->auth_required(__('Sorry, you do not have the right to delete this post.'));
 479
 480                 if ( $entry['post_type'] == 'attachment' ) {
 481                         $this->delete_attachment($postID);
 482                 } else {
 483                         $result = wp_delete_post($postID);
 484
 485                         if ( !$result ) {
 486                                 $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.'));
 487                         }
 488
 489                         $this->ok();
 490                 }
 491
 492         }
 493
 494         /**
 495          * Retrieve attachment.
 496          *
 497          * @since 2.2.0
 498          *
 499          * @param int $postID Optional. Post ID.
 500          */
 501         function get_attachment($postID = null) {
 502                 if ( !current_user_can( 'upload_files' ) )
 503                         $this->auth_required( __( 'You do not have permission to upload files.' ) );
 504
 505                 if ( !isset($postID) ) {
 506                         $this->get_attachments();
 507                 } else {
 508                         if ( ! current_user_can( 'edit_post', $postID ) )
 509                                 $this->auth_required( __( 'Sorry, you do not have the right to edit this post.' ) );
 510
 511                         $this->set_current_entry($postID);
 512                         $output = $this->get_entry($postID, 'attachment');
 513                         $this->output($output);
 514                 }
 515         }
 516
 517         /**
 518          * Create new attachment.
 519          *
 520          * @since 2.2.0
 521          */
 522         function create_attachment() {
 523
 524                 $type = $this->get_accepted_content_type();
 525
 526                 if ( !current_user_can('upload_files') )
 527                         $this->auth_required( __( 'You do not have permission to upload files.' ) );
 528
 529                 $fp = fopen("php://input", "rb");
 530                 $bits = null;
 531                 while ( !feof($fp) ) {
 532                         $bits .= fread($fp, 4096);
 533                 }
 534                 fclose($fp);
 535
 536                 $slug = '';
 537                 if ( isset( $_SERVER['HTTP_SLUG'] ) )
 538                         $slug = $_SERVER['HTTP_SLUG'];
 539                 elseif ( isset( $_SERVER['HTTP_TITLE'] ) )
 540                         $slug = $_SERVER['HTTP_TITLE'];
 541                 elseif ( empty( $slug ) ) // just make a random name
 542                         $slug = substr( md5( uniqid( microtime() ) ), 0, 7);
 543                 $ext = preg_replace( '|.*/([a-z0-9]+)|', '$1', $_SERVER['CONTENT_TYPE'] );
 544                 $slug = sanitize_file_name( "$slug.$ext" );
 545                 $file = wp_upload_bits( $slug, null, $bits);
 546
 547                 $url = $file['url'];
 548                 $file = $file['file'];
 549
 550                 do_action('wp_create_file_in_uploads', $file); // replicate
 551
 552                 // Construct the attachment array
 553                 $attachment = array(
 554                         'post_title' => $slug,
 555                         'post_content' => $slug,
 556                         'post_status' => 'attachment',
 557                         'post_parent' => 0,
 558                         'post_mime_type' => $type,
 559                         'guid' => $url
 560                         );
 561
 562                 // Save the data
 563                 $postID = wp_insert_attachment($attachment, $file);
 564
 565                 if (!$postID)
 566                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 567
 568                 $output = $this->get_entry($postID, 'attachment');
 569
 570                 $this->created($postID, $output, 'attachment');
 571         }
 572
 573         /**
 574          * Update attachment.
 575          *
 576          * @since 2.2.0
 577          *
 578          * @param int $postID Post ID.
 579          */
 580         function put_attachment($postID) {
 581                 // checked for valid content-types (atom+xml)
 582                 // quick check and exit
 583                 $this->get_accepted_content_type($this->atom_content_types);
 584
 585                 $parser = new AtomParser();
 586                 if (!$parser->parse()) {
 587                         $this->bad_request();
 588                 }
 589
 590                 $parsed = array_pop($parser->feed->entries);
 591
 592                 // check for not found
 593                 global $entry;
 594                 $this->set_current_entry($postID);
 595
 596                 if ( !current_user_can('edit_post', $entry['ID']) || 'attachment' != $entry['post_type'] )
 597                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 598
 599                 extract($entry);
 600
 601                 $post_title = $parsed->title[1];
 602                 $post_content = $parsed->summary[1];
 603                 $pubtimes = $this->get_publish_time($parsed->updated);
 604                 $post_modified = $pubtimes[0];
 605                 $post_modified_gmt = $pubtimes[1];
 606
 607                 $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_modified', 'post_modified_gmt');
 608                 $this->escape($postdata);
 609
 610                 $result = wp_update_post($postdata);
 611
 612                 if ( !$result )
 613                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.'));
 614
 615                 $this->ok();
 616         }
 617
 618         /**
 619          * Remove attachment.
 620          *
 621          * @since 2.2.0
 622          *
 623          * @param int $postID Post ID.
 624          */
 625         function delete_attachment($postID) {
 626
 627                 // check for not found
 628                 global $entry;
 629                 $this->set_current_entry($postID);
 630
 631                 if ( !current_user_can('delete_post', $postID) )
 632                         $this->auth_required(__('Sorry, you do not have the right to delete this post.'));
 633
 634                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 635                 $filetype = wp_check_filetype($location);
 636
 637                 if ( !isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']) )
 638                         $this->internal_error(__('Error occurred while accessing post metadata for file location.'));
 639
 640                 // delete attachment
 641                 $result = wp_delete_attachment($postID);
 642
 643                 if ( !$result )
 644                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.'));
 645
 646                 $this->ok();
 647         }
 648
 649         /**
 650          * Retrieve attachment from post.
 651          *
 652          * @since 2.2.0
 653          *
 654          * @param int $postID Post ID.
 655          */
 656         function get_file($postID) {
 657
 658                 // check for not found
 659                 global $entry;
 660                 $this->set_current_entry($postID);
 661
 662                 // then whether user can edit the specific post
 663                 if ( !current_user_can('edit_post', $postID) )
 664                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 665
 666                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 667                 $location = get_option ('upload_path') . '/' . $location;
 668                 $filetype = wp_check_filetype($location);
 669
 670                 if ( !isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']) )
 671                         $this->internal_error(__('Error occurred while accessing post metadata for file location.'));
 672
 673                 status_header('200');
 674                 header('Content-Type: ' . $entry['post_mime_type']);
 675                 header('Connection: close');
 676
 677                 if ( $fp = fopen($location, "rb") ) {
 678                         status_header('200');
 679                         header('Content-Type: ' . $entry['post_mime_type']);
 680                         header('Connection: close');
 681
 682                         while ( !feof($fp) ) {
 683                                 echo fread($fp, 4096);
 684                         }
 685
 686                         fclose($fp);
 687                 } else {
 688                         status_header ('404');
 689                 }
 690
 691                 wp_die();
 692         }
 693
 694         /**
 695          * Upload file to blog and add attachment to post.
 696          *
 697          * @since 2.2.0
 698          *
 699          * @param int $postID Post ID.
 700          */
 701         function put_file($postID) {
 702
 703                 // first check if user can upload
 704                 if ( !current_user_can('upload_files') )
 705                         $this->auth_required(__('You do not have permission to upload files.'));
 706
 707                 // check for not found
 708                 global $entry;
 709                 $this->set_current_entry($postID);
 710
 711                 // then whether user can edit the specific post
 712                 if ( !current_user_can('edit_post', $postID) )
 713                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 714
 715                 $upload_dir = wp_upload_dir( );
 716                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 717                 $filetype = wp_check_filetype($location);
 718
 719                 $location = "{$upload_dir['basedir']}/{$location}";
 720
 721                 if (!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
 722                         $this->internal_error(__('Error occurred while accessing post metadata for file location.'));
 723
 724                 $fp = fopen("php://input", "rb");
 725                 $localfp = fopen($location, "w+");
 726                 while ( !feof($fp) ) {
 727                         fwrite($localfp,fread($fp, 4096));
 728                 }
 729                 fclose($fp);
 730                 fclose($localfp);
 731
 732                 $ID = $entry['ID'];
 733                 $pubtimes = $this->get_publish_time($entry->published);
 734                 $post_date = $pubtimes[0];
 735                 $post_date_gmt = $pubtimes[1];
 736                 $pubtimes = $this->get_publish_time($parsed->updated);
 737                 $post_modified = $pubtimes[0];
 738                 $post_modified_gmt = $pubtimes[1];
 739
 740                 $post_data = compact('ID', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt');
 741                 $result = wp_update_post($post_data);
 742
 743                 if ( !$result )
 744                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 745
 746                 wp_update_attachment_metadata( $postID, wp_generate_attachment_metadata( $postID, $location ) );
 747
 748                 $this->ok();
 749         }
 750
 751         /**
 752          * Retrieve entries URL.
 753          *
 754          * @since 2.2.0
 755          *
 756          * @param int $page Page ID.
 757          * @return string
 758          */
 759         function get_entries_url($page = null) {
 760                 if ( isset($GLOBALS['post_type']) && ( $GLOBALS['post_type'] == 'attachment' ) )
 761                         $path = $this->MEDIA_PATH;
 762                 else
 763                         $path = $this->ENTRIES_PATH;
 764                 $url = $this->app_base . $path;
 765                 if ( isset($page) && is_int($page) )
 766                         $url .= "/$page";
 767                 return $url;
 768         }
 769
 770         /**
 771          * Display entries URL.
 772          *
 773          * @since 2.2.0
 774          *
 775          * @param int $page Page ID.
 776          */
 777         function the_entries_url($page = null) {
 778                 echo $this->get_entries_url($page);
 779         }
 780
 781         /**
 782          * Retrieve categories URL.
 783          *
 784          * @since 2.2.0
 785          *
 786          * @param mixed $deprecated Not used.
 787          * @return string
 788          */
 789         function get_categories_url($deprecated = '') {
 790                 if ( !empty( $deprecated ) )
 791                         _deprecated_argument( __FUNCTION__, '2.5' );
 792                 return $this->app_base . $this->CATEGORIES_PATH;
 793         }
 794
 795         /**
 796          * Display category URL.
 797          *
 798          * @since 2.2.0
 799          */
 800         function the_categories_url() {
 801                 echo $this->get_categories_url();
 802         }
 803
 804         /**
 805          * Retrieve attachment URL.
 806          *
 807          * @since 2.2.0
 808          *
 809          * @param int $page Page ID.
 810          * @return string
 811          */
 812         function get_attachments_url($page = null) {
 813                 $url = $this->app_base . $this->MEDIA_PATH;
 814                 if (isset($page) && is_int($page)) {
 815                         $url .= "/$page";
 816                 }
 817                 return $url;
 818         }
 819
 820         /**
 821          * Display attachment URL.
 822          *
 823          * @since 2.2.0
 824          *
 825          * @param int $page Page ID.
 826          */
 827         function the_attachments_url($page = null) {
 828                 echo $this->get_attachments_url($page);
 829         }
 830
 831         /**
 832          * Retrieve service URL.
 833          *
 834          * @since 2.3.0
 835          *
 836          * @return string
 837          */
 838         function get_service_url() {
 839                 return $this->app_base . $this->SERVICE_PATH;
 840         }
 841
 842         /**
 843          * Retrieve entry URL.
 844          *
 845          * @since 2.7.0
 846          *
 847          * @param int $postID Post ID.
 848          * @return string
 849          */
 850         function get_entry_url($postID = null) {
 851                 if (!isset($postID)) {
 852                         global $post;
 853                         $postID = (int) $post->ID;
 854                 }
 855
 856                 $url = $this->app_base . $this->ENTRY_PATH . "/$postID";
 857
 858                 return $url;
 859         }
 860
 861         /**
 862          * Display entry URL.
 863          *
 864          * @since 2.7.0
 865          *
 866          * @param int $postID Post ID.
 867          */
 868         function the_entry_url($postID = null) {
 869                 echo $this->get_entry_url($postID);
 870         }
 871
 872         /**
 873          * Retrieve media URL.
 874          *
 875          * @since 2.2.0
 876          *
 877          * @param int $postID Post ID.
 878          * @return string
 879          */
 880         function get_media_url($postID = null) {
 881                 if (!isset($postID)) {
 882                         global $post;
 883                         $postID = (int) $post->ID;
 884                 }
 885
 886                 $url = $this->app_base . $this->MEDIA_SINGLE_PATH ."/file/$postID";
 887
 888                 return $url;
 889         }
 890
 891         /**
 892          * Display the media URL.
 893          *
 894          * @since 2.2.0
 895          *
 896          * @param int $postID Post ID.
 897          */
 898         function the_media_url($postID = null) {
 899                 echo $this->get_media_url($postID);
 900         }
 901
 902         /**
 903          * Set the current entry to post ID.
 904          *
 905          * @since 2.2.0
 906          *
 907          * @param int $postID Post ID.
 908          */
 909         function set_current_entry($postID) {
 910                 global $entry;
 911
 912                 if (!isset($postID)) {
 913                         // $this->bad_request();
 914                         $this->not_found();
 915                 }
 916
 917                 $entry = wp_get_single_post($postID,ARRAY_A);
 918
 919                 if (!isset($entry) || !isset($entry['ID']))
 920                         $this->not_found();
 921
 922                 return;
 923         }
 924
 925         /**
 926          * Display posts XML.
 927          *
 928          * @since 2.2.0
 929          *
 930          * @param int $page Optional. Page ID.
 931          * @param string $post_type Optional, default is 'post'. Post Type.
 932          */
 933         function get_posts($page = 1, $post_type = 'post') {
 934                 $feed = $this->get_feed($page, $post_type);
 935                 $this->output($feed);
 936         }
 937
 938         /**
 939          * Display attachment XML.
 940          *
 941          * @since 2.2.0
 942          *
 943          * @param int $page Page ID.
 944          * @param string $post_type Optional, default is 'attachment'. Post type.
 945          */
 946         function get_attachments($page = 1, $post_type = 'attachment') {
 947                 $GLOBALS['post_type'] = $post_type;
 948                 $feed = $this->get_feed($page, $post_type);
 949                 $this->output($feed);
 950         }
 951
 952         /**
 953          * Retrieve feed XML.
 954          *
 955          * @since 2.2.0
 956          *
 957          * @param int $page Page ID.
 958          * @param string $post_type Optional, default is post. Post type.
 959          * @return string
 960          */
 961         function get_feed($page = 1, $post_type = 'post') {
 962                 global $post, $wp, $wp_query, $posts, $wpdb, $blog_id;
 963                 ob_start();
 964
 965                 $this->ENTRY_PATH = $post_type;
 966
 967                 if (!isset($page)) {
 968                         $page = 1;
 969                 }
 970                 $page = (int) $page;
 971
 972                 $count = get_option('posts_per_rss');
 973
 974                 wp('posts_per_page=' . $count . '&offset=' . ($count * ($page-1)) . '&orderby=modified&perm=readable');
 975
 976                 $post = $GLOBALS['post'];
 977                 $posts = $GLOBALS['posts'];
 978                 $wp = $GLOBALS['wp'];
 979                 $wp_query = $GLOBALS['wp_query'];
 980                 $wpdb = $GLOBALS['wpdb'];
 981                 $blog_id = (int) $GLOBALS['blog_id'];
 982
 983                 $last_page = $wp_query->max_num_pages;
 984                 $next_page = (($page + 1) > $last_page) ? null : $page + 1;
 985                 $prev_page = ($page - 1) < 1 ? null : $page - 1;
 986                 $last_page = ((int)$last_page == 1 || (int)$last_page == 0) ? null : (int) $last_page;
 987                 $self_page = $page > 1 ? $page : null;
 988 ?><feed xmlns="<?php echo $this->ATOM_NS ?>" xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php bloginfo_rss( 'language' ); ?>" <?php do_action('app_ns'); ?> >
 989 <id><?php $this->the_entries_url() ?></id>
 990 <updated><?php echo mysql2date('Y-m-d\TH:i:s\Z', get_lastpostmodified('GMT'), false); ?></updated>
 991 <title type="text"><?php bloginfo_rss('name') ?></title>
 992 <subtitle type="text"><?php bloginfo_rss("description") ?></subtitle>
 993 <link rel="first" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url() ?>" />
 994 <?php if (isset($prev_page)): ?>
 995 <link rel="previous" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($prev_page) ?>" />
 996 <?php endif; ?>
 997 <?php if (isset($next_page)): ?>
 998 <link rel="next" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($next_page) ?>" />
 999 <?php endif; ?>
1000 <link rel="last" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($last_page) ?>" />
1001 <link rel="self" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($self_page) ?>" />
1002 <rights type="text">Copyright <?php echo date('Y'); ?></rights>
1003 <?php do_action('app_head'); ?>
1004 <?php if ( have_posts() ) {
1005                         while ( have_posts() ) {
1006                                 the_post();
1007                                 $this->echo_entry();
1008                         }
1009                 }
1010 ?></feed>
1011 <?php
1012                 $feed = ob_get_contents();
1013                 ob_end_clean();
1014                 return $feed;
1015         }
1016
1017         /**
1018          * Display entry XML.
1019          *
1020          * @since 2.2.0
1021          *
1022          * @param int $postID Post ID.
1023          * @param string $post_type Optional, default is post. Post type.
1024          * @return string.
1025          */
1026         function get_entry($postID, $post_type = 'post') {
1027                 ob_start();
1028                 switch($post_type) {
1029                         case 'post':
1030                                 $varname = 'p';
1031                                 break;
1032                         case 'attachment':
1033                                 $this->ENTRY_PATH = 'attachment';
1034                                 $varname = 'attachment_id';
1035                                 break;
1036                 }
1037                 query_posts($varname . '=' . $postID);
1038                 if ( have_posts() ) {
1039                         while ( have_posts() ) {
1040                                 the_post();
1041                                 $this->echo_entry();
1042                                 $entry = ob_get_contents();
1043                                 break;
1044                         }
1045                 }
1046                 ob_end_clean();
1047
1048                 return $entry;
1049         }
1050
1051         /**
1052          * Display post content XML.
1053          *
1054          * @since 2.3.0
1055          */
1056         function echo_entry() { ?>
1057 <entry xmlns="<?php echo $this->ATOM_NS ?>"
1058        xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php bloginfo_rss( 'language' ); ?>">
1059         <id><?php the_guid( $GLOBALS['post']->ID ); ?></id>
1060 <?php list($content_type, $content) = prep_atom_text_construct(get_the_title()); ?>
1061         <title type="<?php echo $content_type ?>"><?php echo $content ?></title>
1062         <updated><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></updated>
1063         <published><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></published>
1064         <app:edited><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></app:edited>
1065         <app:control>
1066                 <app:draft><?php echo ($GLOBALS['post']->post_status == 'draft' ? 'yes' : 'no') ?></app:draft>
1067         </app:control>
1068         <author>
1069                 <name><?php the_author()?></name>
1070 <?php if ( get_the_author_meta('url') && get_the_author_meta('url') != 'http://' ) { ?>
1071                 <uri><?php the_author_meta('url') ?></uri>
1072 <?php } ?>
1073         </author>
1074 <?php if ($GLOBALS['post']->post_type == 'attachment') { ?>
1075         <link rel="edit-media" href="<?php $this->the_media_url() ?>" />
1076         <content type="<?php echo $GLOBALS['post']->post_mime_type ?>" src="<?php the_guid() ; ?>"/>
1077 <?php } else { ?>
1078         <link href="<?php the_permalink_rss() ?>" />
1079 <?php if ( strlen( $GLOBALS['post']->post_content ) ) :
1080 list($content_type, $content) = prep_atom_text_construct(get_the_content()); ?>
1081         <content type="<?php echo $content_type ?>"><?php echo $content ?></content>
1082 <?php endif; ?>
1083 <?php } ?>
1084         <link rel="edit" href="<?php $this->the_entry_url() ?>" />
1085         <?php the_category_rss( 'atom' ); ?>
1086 <?php list($content_type, $content) = prep_atom_text_construct(get_the_excerpt()); ?>
1087         <summary type="<?php echo $content_type ?>"><?php echo $content ?></summary>
1088         <?php do_action('app_entry'); ?>
1089 </entry>
1090 <?php }
1091
1092         /**
1093          * Set 'OK' (200) status header.
1094          *
1095          * @since 2.2.0
1096          */
1097         function ok() {
1098                 header('Content-Type: text/plain');
1099                 status_header('200');
1100                 wp_die();
1101         }
1102
1103         /**
1104          * Set 'No Content' (204) status header.
1105          *
1106          * @since 2.2.0
1107          */
1108         function no_content() {
1109                 header('Content-Type: text/plain');
1110                 status_header('204');
1111                 echo "Moved to Trash.";
1112                 wp_die();
1113         }
1114
1115         /**
1116          * Display 'Internal Server Error' (500) status header.
1117          *
1118          * @since 2.2.0
1119          *
1120          * @param string $msg Optional. Status string.
1121          */
1122         function internal_error($msg = 'Internal Server Error') {
1123                 header('Content-Type: text/plain');
1124                 status_header('500');
1125                 echo $msg;
1126                 wp_die();
1127         }
1128
1129         /**
1130          * Set 'Bad Request' (400) status header.
1131          *
1132          * @since 2.2.0
1133          */
1134         function bad_request() {
1135                 header('Content-Type: text/plain');
1136                 status_header('400');
1137                 wp_die();
1138         }
1139
1140         /**
1141          * Set 'Length Required' (411) status header.
1142          *
1143          * @since 2.2.0
1144          */
1145         function length_required() {
1146                 header("HTTP/1.1 411 Length Required");
1147                 header('Content-Type: text/plain');
1148                 status_header('411');
1149                 wp_die();
1150         }
1151
1152         /**
1153          * Set 'Unsupported Media Type' (415) status header.
1154          *
1155          * @since 2.2.0
1156          */
1157         function invalid_media() {
1158                 header("HTTP/1.1 415 Unsupported Media Type");
1159                 header('Content-Type: text/plain');
1160                 wp_die();
1161         }
1162
1163         /**
1164          * Set 'Forbidden' (403) status header.
1165          *
1166          * @since 2.6.0
1167          */
1168         function forbidden($reason='') {
1169                 header('Content-Type: text/plain');
1170                 status_header('403');
1171                 echo $reason;
1172                 wp_die();
1173         }
1174
1175         /**
1176          * Set 'Not Found' (404) status header.
1177          *
1178          * @since 2.2.0
1179          */
1180         function not_found() {
1181                 header('Content-Type: text/plain');
1182                 status_header('404');
1183                 wp_die();
1184         }
1185
1186         /**
1187          * Set 'Not Allowed' (405) status header.
1188          *
1189          * @since 2.2.0
1190          */
1191         function not_allowed($allow) {
1192                 header('Allow: ' . join(',', $allow));
1193                 status_header('405');
1194                 wp_die();
1195         }
1196
1197         /**
1198          * Display Redirect (302) content and set status headers.
1199          *
1200          * @since 2.3.0
1201          */
1202         function redirect($url) {
1203                 $escaped_url = esc_attr($url);
1204                 $content = <<<EOD
1205 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1206 <html>
1207   <head>
1208     <title>302 Found</title>
1209   </head>
1210 <body>
1211   <h1>Found</h1>
1212   <p>The document has moved <a href="$escaped_url">here</a>.</p>
1213   </body>
1214 </html>
1215
1216 EOD;
1217                 header('HTTP/1.1 302 Moved');
1218                 header('Content-Type: text/html');
1219                 header('Location: ' . $url);
1220                 echo $content;
1221                 wp_die();
1222
1223         }
1224
1225         /**
1226          * Set 'Client Error' (400) status header.
1227          *
1228          * @since 2.2.0
1229          */
1230         function client_error($msg = 'Client Error') {
1231                 header('Content-Type: text/plain');
1232                 status_header('400');
1233                 wp_die();
1234         }
1235
1236         /**
1237          * Set created status headers (201).
1238          *
1239          * Sets the 'content-type', 'content-location', and 'location'.
1240          *
1241          * @since 2.2.0
1242          */
1243         function created($post_ID, $content, $post_type = 'post') {
1244                 $edit = $this->get_entry_url($post_ID);
1245                 switch($post_type) {
1246                         case 'post':
1247                                 $ctloc = $this->get_entry_url($post_ID);
1248                                 break;
1249                         case 'attachment':
1250                                 $edit = $this->app_base . "attachments/$post_ID";
1251                                 break;
1252                 }
1253                 header("Content-Type: $this->ATOM_CONTENT_TYPE");
1254                 if (isset($ctloc))
1255                         header('Content-Location: ' . $ctloc);
1256                 header('Location: ' . $edit);
1257                 status_header('201');
1258                 echo $content;
1259                 wp_die();
1260         }
1261
1262         /**
1263          * Set 'Auth Required' (401) headers.
1264          *
1265          * @since 2.2.0
1266          *
1267          * @param string $msg Status header content and HTML content.
1268          */
1269         function auth_required($msg) {
1270                 nocache_headers();
1271                 header('WWW-Authenticate: Basic realm="WordPress Atom Protocol"');
1272                 header("HTTP/1.1 401 $msg");
1273                 header('Status: 401 ' . $msg);
1274                 header('Content-Type: text/html');
1275                 $content = <<<EOD
1276 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1277 <html>
1278   <head>
1279     <title>401 Unauthorized</title>
1280   </head>
1281 <body>
1282     <h1>401 Unauthorized</h1>
1283     <p>$msg</p>
1284   </body>
1285 </html>
1286
1287 EOD;
1288                 echo $content;
1289                 wp_die();
1290         }
1291
1292         /**
1293          * Display XML and set headers with content type.
1294          *
1295          * @since 2.2.0
1296          *
1297          * @param string $xml Display feed content.
1298          * @param string $ctype Optional, default is 'atom+xml'. Feed content type.
1299          */
1300         function output($xml, $ctype = 'application/atom+xml') {
1301                 status_header('200');
1302                 $xml = '<?xml version="1.0" encoding="' . strtolower(get_option('blog_charset')) . '"?>'."\n".$xml;
1303                 header('Connection: close');
1304                 header('Content-Length: '. strlen($xml));
1305                 header('Content-Type: ' . $ctype);
1306                 header('Content-Disposition: attachment; filename=atom.xml');
1307                 header('Date: '. date('r'));
1308                 if ($this->do_output)
1309                         echo $xml;
1310                 wp_die();
1311         }
1312
1313         /**
1314          * Sanitize content for database usage.
1315          *
1316          * @since 2.2.0
1317          *
1318          * @param array $array Sanitize array and multi-dimension array.
1319          */
1320         function escape(&$array) {
1321                 global $wpdb;
1322
1323                 foreach ($array as $k => $v) {
1324                                 if (is_array($v)) {
1325                                                 $this->escape($array[$k]);
1326                                 } else if (is_object($v)) {
1327                                                 //skip
1328                                 } else {
1329                                                 $array[$k] = $wpdb->escape($v);
1330                                 }
1331                 }
1332         }
1333
1334         /**
1335          * Access credential through various methods and perform login.
1336          *
1337          * @since 2.2.0
1338          *
1339          * @return bool
1340          */
1341         function authenticate() {
1342
1343                 // if using mod_rewrite/ENV hack
1344                 // http://www.besthostratings.com/articles/http-auth-php-cgi.html
1345                 if (isset($_SERVER['HTTP_AUTHORIZATION'])) {
1346                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1347                                 explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
1348                 } else if (isset($_SERVER['REDIRECT_REMOTE_USER'])) {
1349                         // Workaround for setups that do not forward HTTP_AUTHORIZATION
1350                         // See http://trac.wordpress.org/ticket/7361
1351                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1352                                 explode(':', base64_decode(substr($_SERVER['REDIRECT_REMOTE_USER'], 6)));
1353                 }
1354
1355                 // If Basic Auth is working...
1356                 if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
1357
1358                         $user = wp_authenticate($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
1359                         if ( $user && !is_wp_error($user) ) {
1360                                 wp_set_current_user($user->ID);
1361                                 return true;
1362                         }
1363                 }
1364
1365                 return false;
1366         }
1367
1368         /**
1369          * Retrieve accepted content types.
1370          *
1371          * @since 2.2.0
1372          *
1373          * @param array $types Optional. Content Types.
1374          * @return string
1375          */
1376         function get_accepted_content_type($types = null) {
1377
1378                 if (!isset($types)) {
1379                         $types = $this->media_content_types;
1380                 }
1381
1382                 if (!isset($_SERVER['CONTENT_LENGTH']) || !isset($_SERVER['CONTENT_TYPE'])) {
1383                         $this->length_required();
1384                 }
1385
1386                 $type = $_SERVER['CONTENT_TYPE'];
1387                 list($type,$subtype) = explode('/',$type);
1388                 list($subtype) = explode(";",$subtype); // strip MIME parameters
1389
1390                 foreach($types as $t) {
1391                         list($acceptedType,$acceptedSubtype) = explode('/',$t);
1392                         if ($acceptedType == '*' || $acceptedType == $type) {
1393                                 if ($acceptedSubtype == '*' || $acceptedSubtype == $subtype)
1394                                         return $type . "/" . $subtype;
1395                         }
1396                 }
1397
1398                 $this->invalid_media();
1399         }
1400
1401         /**
1402          * Process conditionals for posts.
1403          *
1404          * @since 2.2.0
1405          */
1406         function process_conditionals() {
1407
1408                 if (empty($this->params)) return;
1409                 if ($_SERVER['REQUEST_METHOD'] == 'DELETE') return;
1410
1411                 switch($this->params[0]) {
1412                         case $this->ENTRY_PATH:
1413                                 global $post;
1414                                 $post = wp_get_single_post($this->params[1]);
1415                                 $wp_last_modified = get_post_modified_time('D, d M Y H:i:s', true);
1416                                 $post = null;
1417                                 break;
1418                         case $this->ENTRIES_PATH:
1419                                 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
1420                                 break;
1421                         default:
1422                                 return;
1423                 }
1424                 $wp_etag = md5($wp_last_modified);
1425                 @header("Last-Modified: $wp_last_modified");
1426                 @header("ETag: $wp_etag");
1427
1428                 // Support for Conditional GET
1429                 if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
1430                         $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
1431                 else
1432                         $client_etag = false;
1433
1434                 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
1435                 // If string is empty, return 0. If not, attempt to parse into a timestamp
1436                 $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
1437
1438                 // Make a timestamp for our most recent modification...
1439                 $wp_modified_timestamp = strtotime($wp_last_modified);
1440
1441                 if ( ($client_last_modified && $client_etag) ?
1442                 (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
1443                 (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
1444                         status_header( 304 );
1445                         wp_die();
1446                 }
1447         }
1448
1449         /**
1450          * Convert RFC3339 time string to timestamp.
1451          *
1452          * @since 2.3.0
1453          *
1454          * @param string $str String to time.
1455          * @return bool|int false if format is incorrect.
1456          */
1457         function rfc3339_str2time($str) {
1458
1459                 $match = false;
1460                 if (!preg_match("/(\d{4}-\d{2}-\d{2})T(\d{2}\:\d{2}\:\d{2})\.?\d{0,3}(Z|[+-]+\d{2}\:\d{2})/", $str, $match))
1461                         return false;
1462
1463                 if ($match[3] == 'Z')
1464                         $match[3] = '+0000';
1465
1466                 return strtotime($match[1] . " " . $match[2] . " " . $match[3]);
1467         }
1468
1469         /**
1470          * Retrieve published time to display in XML.
1471          *
1472          * @since 2.3.0
1473          *
1474          * @param string $published Time string.
1475          * @return string
1476          */
1477         function get_publish_time($published) {
1478
1479                 $pubtime = $this->rfc3339_str2time($published);
1480
1481                 if (!$pubtime) {
1482                         return array(current_time('mysql'),current_time('mysql',1));
1483                 } else {
1484                         return array(date("Y-m-d H:i:s", $pubtime), gmdate("Y-m-d H:i:s", $pubtime));
1485                 }
1486         }
1487
1488 }