wp-app.php

   1 <?php
   2 /**
   3  * Atom Publishing Protocol support for WordPress
   4  *
   5  * @author Original by Elias Torres <http://torrez.us/archives/2006/08/31/491/>
   6  * @author Modified by Dougal Campbell <http://dougal.gunters.org/>
   7  * @version 1.0.5-dc
   8  */
   9
  10 /**
  11  * WordPress is handling an Atom Publishing Protocol request.
  12  *
  13  * @var bool
  14  */
  15 define('APP_REQUEST', true);
  16
  17 /** Set up WordPress environment */
  18 require_once('./wp-load.php');
  19
  20 /** Post Template API */
  21 require_once(ABSPATH . WPINC . '/post-template.php');
  22
  23 /** Atom Publishing Protocol Class */
  24 require_once(ABSPATH . WPINC . '/atomlib.php');
  25
  26 /** Feed Handling API */
  27 require_once(ABSPATH . WPINC . '/feed.php');
  28
  29 /** Admin Image API for metadata updating */
  30 require_once(ABSPATH . '/wp-admin/includes/image.php');
  31
  32 $_SERVER['PATH_INFO'] = preg_replace( '/.*\/wp-app\.php/', '', $_SERVER['REQUEST_URI'] );
  33
  34 /**
  35  * Whether to enable Atom Publishing Protocol Logging.
  36  *
  37  * @name app_logging
  38  * @var int|bool
  39  */
  40 $app_logging = 0;
  41
  42 /**
  43  * Whether to always authenticate user. Permanently set to true.
  44  *
  45  * @name always_authenticate
  46  * @var int|bool
  47  * @todo Should be an option somewhere
  48  */
  49 $always_authenticate = 1;
  50
  51 /**
  52  * Writes logging info to a file.
  53  *
  54  * @since 2.2.0
  55  * @uses $app_logging
  56  * @package WordPress
  57  * @subpackage Logging
  58  *
  59  * @param string $label Type of logging
  60  * @param string $msg Information describing logging reason.
  61  */
  62 function log_app($label,$msg) {
  63         global $app_logging;
  64         if ($app_logging) {
  65                 $fp = fopen( 'wp-app.log', 'a+');
  66                 $date = gmdate( 'Y-m-d H:i:s' );
  67                 fwrite($fp, "\n\n$date - $label\n$msg\n");
  68                 fclose($fp);
  69         }
  70 }
  71
  72 if ( !function_exists('wp_set_current_user') ) :
  73 /**
  74  * @ignore
  75  */
  76 function wp_set_current_user($id, $name = '') {
  77         global $current_user;
  78
  79         if ( isset($current_user) && ($id == $current_user->ID) )
  80                 return $current_user;
  81
  82         $current_user = new WP_User($id, $name);
  83
  84         return $current_user;
  85 }
  86 endif;
  87
  88 /**
  89  * Filter to add more post statuses.
  90  *
  91  * @since 2.2.0
  92  *
  93  * @param string $where SQL statement to filter.
  94  * @return string Filtered SQL statement with added post_status for where clause.
  95  */
  96 function wa_posts_where_include_drafts_filter($where) {
  97         $where = str_replace("post_status = 'publish'","post_status = 'publish' OR post_status = 'future' OR post_status = 'draft' OR post_status = 'inherit'", $where);
  98         return $where;
  99
 100 }
 101 add_filter('posts_where', 'wa_posts_where_include_drafts_filter');
 102
 103 /**
 104  * WordPress AtomPub API implementation.
 105  *
 106  * @package WordPress
 107  * @subpackage Publishing
 108  * @since 2.2.0
 109  */
 110 class AtomServer {
 111
 112         /**
 113          * ATOM content type.
 114          *
 115          * @since 2.2.0
 116          * @var string
 117          */
 118         var $ATOM_CONTENT_TYPE = 'application/atom+xml';
 119
 120         /**
 121          * Categories ATOM content type.
 122          *
 123          * @since 2.2.0
 124          * @var string
 125          */
 126         var $CATEGORIES_CONTENT_TYPE = 'application/atomcat+xml';
 127
 128         /**
 129          * Service ATOM content type.
 130          *
 131          * @since 2.3.0
 132          * @var string
 133          */
 134         var $SERVICE_CONTENT_TYPE = 'application/atomsvc+xml';
 135
 136         /**
 137          * ATOM XML namespace.
 138          *
 139          * @since 2.3.0
 140          * @var string
 141          */
 142         var $ATOM_NS = 'http://www.w3.org/2005/Atom';
 143
 144         /**
 145          * ATOMPUB XML namespace.
 146          *
 147          * @since 2.3.0
 148          * @var string
 149          */
 150         var $ATOMPUB_NS = 'http://www.w3.org/2007/app';
 151
 152         /**
 153          * Entries path.
 154          *
 155          * @since 2.2.0
 156          * @var string
 157          */
 158         var $ENTRIES_PATH = "posts";
 159
 160         /**
 161          * Categories path.
 162          *
 163          * @since 2.2.0
 164          * @var string
 165          */
 166         var $CATEGORIES_PATH = "categories";
 167
 168         /**
 169          * Media path.
 170          *
 171          * @since 2.2.0
 172          * @var string
 173          */
 174         var $MEDIA_PATH = "attachments";
 175
 176         /**
 177          * Entry path.
 178          *
 179          * @since 2.2.0
 180          * @var string
 181          */
 182         var $ENTRY_PATH = "post";
 183
 184         /**
 185          * Service path.
 186          *
 187          * @since 2.2.0
 188          * @var string
 189          */
 190         var $SERVICE_PATH = "service";
 191
 192         /**
 193          * Media single path.
 194          *
 195          * @since 2.2.0
 196          * @var string
 197          */
 198         var $MEDIA_SINGLE_PATH = "attachment";
 199
 200         /**
 201          * ATOMPUB parameters.
 202          *
 203          * @since 2.2.0
 204          * @var array
 205          */
 206         var $params = array();
 207
 208         /**
 209          * Supported ATOMPUB media types.
 210          *
 211          * @since 2.3.0
 212          * @var array
 213          */
 214         var $media_content_types = array('image/*','audio/*','video/*');
 215
 216         /**
 217          * ATOMPUB content type(s).
 218          *
 219          * @since 2.2.0
 220          * @var array
 221          */
 222         var $atom_content_types = array('application/atom+xml');
 223
 224         /**
 225          * ATOMPUB methods.
 226          *
 227          * @since 2.2.0
 228          * @var unknown_type
 229          */
 230         var $selectors = array();
 231
 232         /**
 233          * Whether to do output.
 234          *
 235          * Support for head.
 236          *
 237          * @since 2.2.0
 238          * @var bool
 239          */
 240         var $do_output = true;
 241
 242         /**
 243          * PHP4 constructor - Sets up object properties.
 244          *
 245          * @since 2.2.0
 246          * @return AtomServer
 247          */
 248         function AtomServer() {
 249
 250                 $this->script_name = array_pop(explode('/',$_SERVER['SCRIPT_NAME']));
 251                 $this->app_base = get_bloginfo('url') . '/' . $this->script_name . '/';
 252                 if ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) {
 253                         $this->app_base = preg_replace( '/^http:\/\//', 'https://', $this->app_base );
 254                 }
 255
 256                 $this->selectors = array(
 257                         '@/service$@' =>
 258                                 array('GET' => 'get_service'),
 259                         '@/categories$@' =>
 260                                 array('GET' => 'get_categories_xml'),
 261                         '@/post/(\d+)$@' =>
 262                                 array('GET' => 'get_post',
 263                                                 'PUT' => 'put_post',
 264                                                 'DELETE' => 'delete_post'),
 265                         '@/posts/?(\d+)?$@' =>
 266                                 array('GET' => 'get_posts',
 267                                                 'POST' => 'create_post'),
 268                         '@/attachments/?(\d+)?$@' =>
 269                                 array('GET' => 'get_attachment',
 270                                                 'POST' => 'create_attachment'),
 271                         '@/attachment/file/(\d+)$@' =>
 272                                 array('GET' => 'get_file',
 273                                                 'PUT' => 'put_file',
 274                                                 'DELETE' => 'delete_file'),
 275                         '@/attachment/(\d+)$@' =>
 276                                 array('GET' => 'get_attachment',
 277                                                 'PUT' => 'put_attachment',
 278                                                 'DELETE' => 'delete_attachment'),
 279                 );
 280         }
 281
 282         /**
 283          * Handle ATOMPUB request.
 284          *
 285          * @since 2.2.0
 286          */
 287         function handle_request() {
 288                 global $always_authenticate;
 289
 290                 if( !empty( $_SERVER['ORIG_PATH_INFO'] ) )
 291                         $path = $_SERVER['ORIG_PATH_INFO'];
 292                 else
 293                         $path = $_SERVER['PATH_INFO'];
 294
 295                 $method = $_SERVER['REQUEST_METHOD'];
 296
 297                 log_app('REQUEST',"$method $path\n================");
 298
 299                 $this->process_conditionals();
 300                 //$this->process_conditionals();
 301
 302                 // exception case for HEAD (treat exactly as GET, but don't output)
 303                 if($method == 'HEAD') {
 304                         $this->do_output = false;
 305                         $method = 'GET';
 306                 }
 307
 308                 // redirect to /service in case no path is found.
 309                 if(strlen($path) == 0 || $path == '/') {
 310                         $this->redirect($this->get_service_url());
 311                 }
 312
 313                 // check to see if AtomPub is enabled
 314                 if( !get_option( 'enable_app' ) )
 315                         $this->forbidden( sprintf( __( 'AtomPub services are disabled on this blog.  An admin user can enable them at %s' ), admin_url('options-writing.php') ) );
 316
 317                 // dispatch
 318                 foreach($this->selectors as $regex => $funcs) {
 319                         if(preg_match($regex, $path, $matches)) {
 320                         if(isset($funcs[$method])) {
 321
 322                                 // authenticate regardless of the operation and set the current
 323                                 // user. each handler will decide if auth is required or not.
 324                                 if(!$this->authenticate()) {
 325                                         if ($always_authenticate) {
 326                                                 $this->auth_required('Credentials required.');
 327                                         }
 328                                 }
 329
 330                                 array_shift($matches);
 331                                 call_user_func_array(array(&$this,$funcs[$method]), $matches);
 332                                 exit();
 333                         } else {
 334                                 // only allow what we have handlers for...
 335                                 $this->not_allowed(array_keys($funcs));
 336                         }
 337                         }
 338                 }
 339
 340                 // oops, nothing found
 341                 $this->not_found();
 342         }
 343
 344         /**
 345          * Retrieve XML for ATOMPUB service.
 346          *
 347          * @since 2.2.0
 348          */
 349         function get_service() {
 350                 log_app('function','get_service()');
 351
 352                 if( !current_user_can( 'edit_posts' ) )
 353                         $this->auth_required( __( 'Sorry, you do not have the right to access this blog.' ) );
 354
 355                 $entries_url = esc_attr($this->get_entries_url());
 356                 $categories_url = esc_attr($this->get_categories_url());
 357                 $media_url = esc_attr($this->get_attachments_url());
 358                 foreach ($this->media_content_types as $med) {
 359                         $accepted_media_types = $accepted_media_types . "<accept>" . $med . "</accept>";
 360                 }
 361                 $atom_prefix="atom";
 362                 $atom_blogname=get_bloginfo('name');
 363                 $service_doc = <<<EOD
 364 <service xmlns="$this->ATOMPUB_NS" xmlns:$atom_prefix="$this->ATOM_NS">
 365   <workspace>
 366     <$atom_prefix:title>$atom_blogname Workspace</$atom_prefix:title>
 367     <collection href="$entries_url">
 368       <$atom_prefix:title>$atom_blogname Posts</$atom_prefix:title>
 369       <accept>$this->ATOM_CONTENT_TYPE;type=entry</accept>
 370       <categories href="$categories_url" />
 371     </collection>
 372     <collection href="$media_url">
 373       <$atom_prefix:title>$atom_blogname Media</$atom_prefix:title>
 374       $accepted_media_types
 375     </collection>
 376   </workspace>
 377 </service>
 378
 379 EOD;
 380
 381                 $this->output($service_doc, $this->SERVICE_CONTENT_TYPE);
 382         }
 383
 384         /**
 385          * Retrieve categories list in XML format.
 386          *
 387          * @since 2.2.0
 388          */
 389         function get_categories_xml() {
 390                 log_app('function','get_categories_xml()');
 391
 392                 if( !current_user_can( 'edit_posts' ) )
 393                         $this->auth_required( __( 'Sorry, you do not have the right to access this blog.' ) );
 394
 395                 $home = esc_attr(get_bloginfo_rss('home'));
 396
 397                 $categories = "";
 398                 $cats = get_categories("hierarchical=0&hide_empty=0");
 399                 foreach ((array) $cats as $cat) {
 400                         $categories .= "    <category term=\"" . esc_attr($cat->name) .  "\" />\n";
 401 }
 402                 $output = <<<EOD
 403 <app:categories xmlns:app="$this->ATOMPUB_NS"
 404         xmlns="$this->ATOM_NS"
 405         fixed="yes" scheme="$home">
 406         $categories
 407 </app:categories>
 408 EOD;
 409         $this->output($output, $this->CATEGORIES_CONTENT_TYPE);
 410 }
 411
 412         /**
 413          * Create new post.
 414          *
 415          * @since 2.2.0
 416          */
 417         function create_post() {
 418                 global $blog_id, $user_ID;
 419                 $this->get_accepted_content_type($this->atom_content_types);
 420
 421                 $parser = new AtomParser();
 422                 if(!$parser->parse()) {
 423                         $this->client_error();
 424                 }
 425
 426                 $entry = array_pop($parser->feed->entries);
 427
 428                 log_app('Received entry:', print_r($entry,true));
 429
 430                 $catnames = array();
 431                 foreach($entry->categories as $cat)
 432                         array_push($catnames, $cat["term"]);
 433
 434                 $wp_cats = get_categories(array('hide_empty' => false));
 435
 436                 $post_category = array();
 437
 438                 foreach($wp_cats as $cat) {
 439                         if(in_array($cat->name, $catnames))
 440                                 array_push($post_category, $cat->term_id);
 441                 }
 442
 443                 $publish = (isset($entry->draft) && trim($entry->draft) == 'yes') ? false : true;
 444
 445                 $cap = ($publish) ? 'publish_posts' : 'edit_posts';
 446
 447                 if(!current_user_can($cap))
 448                         $this->auth_required(__('Sorry, you do not have the right to edit/publish new posts.'));
 449
 450                 $blog_ID = (int ) $blog_id;
 451                 $post_status = ($publish) ? 'publish' : 'draft';
 452                 $post_author = (int) $user_ID;
 453                 $post_title = $entry->title[1];
 454                 $post_content = $entry->content[1];
 455                 $post_excerpt = $entry->summary[1];
 456                 $pubtimes = $this->get_publish_time($entry->published);
 457                 $post_date = $pubtimes[0];
 458                 $post_date_gmt = $pubtimes[1];
 459
 460                 if ( isset( $_SERVER['HTTP_SLUG'] ) )
 461                         $post_name = $_SERVER['HTTP_SLUG'];
 462
 463                 $post_data = compact('blog_ID', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_name');
 464
 465                 $this->escape($post_data);
 466                 log_app('Inserting Post. Data:', print_r($post_data,true));
 467
 468                 $postID = wp_insert_post($post_data);
 469                 if ( is_wp_error( $postID ) )
 470                         $this->internal_error($postID->get_error_message());
 471
 472                 if (!$postID)
 473                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 474
 475                 // getting warning here about unable to set headers
 476                 // because something in the cache is printing to the buffer
 477                 // could we clean up wp_set_post_categories or cache to not print
 478                 // this could affect our ability to send back the right headers
 479                 @wp_set_post_categories($postID, $post_category);
 480
 481                 do_action( 'atompub_create_post', $postID, $entry );
 482
 483                 $output = $this->get_entry($postID);
 484
 485                 log_app('function',"create_post($postID)");
 486                 $this->created($postID, $output);
 487         }
 488
 489         /**
 490          * Retrieve post.
 491          *
 492          * @since 2.2.0
 493          *
 494          * @param int $postID Post ID.
 495          */
 496         function get_post($postID) {
 497                 global $entry;
 498
 499                 if( !current_user_can( 'edit_post', $postID ) )
 500                         $this->auth_required( __( 'Sorry, you do not have the right to access this post.' ) );
 501
 502                 $this->set_current_entry($postID);
 503                 $output = $this->get_entry($postID);
 504                 log_app('function',"get_post($postID)");
 505                 $this->output($output);
 506
 507         }
 508
 509         /**
 510          * Update post.
 511          *
 512          * @since 2.2.0
 513          *
 514          * @param int $postID Post ID.
 515          */
 516         function put_post($postID) {
 517                 // checked for valid content-types (atom+xml)
 518                 // quick check and exit
 519                 $this->get_accepted_content_type($this->atom_content_types);
 520
 521                 $parser = new AtomParser();
 522                 if(!$parser->parse()) {
 523                         $this->bad_request();
 524                 }
 525
 526                 $parsed = array_pop($parser->feed->entries);
 527
 528                 log_app('Received UPDATED entry:', print_r($parsed,true));
 529
 530                 // check for not found
 531                 global $entry;
 532                 $this->set_current_entry($postID);
 533
 534                 if(!current_user_can('edit_post', $entry['ID']))
 535                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 536
 537                 $publish = (isset($parsed->draft) && trim($parsed->draft) == 'yes') ? false : true;
 538                 $post_status = ($publish) ? 'publish' : 'draft';
 539
 540                 extract($entry);
 541
 542                 $post_title = $parsed->title[1];
 543                 $post_content = $parsed->content[1];
 544                 $post_excerpt = $parsed->summary[1];
 545                 $pubtimes = $this->get_publish_time($entry->published);
 546                 $post_date = $pubtimes[0];
 547                 $post_date_gmt = $pubtimes[1];
 548                 $pubtimes = $this->get_publish_time($parsed->updated);
 549                 $post_modified = $pubtimes[0];
 550                 $post_modified_gmt = $pubtimes[1];
 551
 552                 $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt');
 553                 $this->escape($postdata);
 554
 555                 $result = wp_update_post($postdata);
 556
 557                 if (!$result) {
 558                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.'));
 559                 }
 560
 561                 do_action( 'atompub_put_post', $ID, $parsed );
 562
 563                 log_app('function',"put_post($postID)");
 564                 $this->ok();
 565         }
 566
 567         /**
 568          * Remove post.
 569          *
 570          * @since 2.2.0
 571          *
 572          * @param int $postID Post ID.
 573          */
 574         function delete_post($postID) {
 575
 576                 // check for not found
 577                 global $entry;
 578                 $this->set_current_entry($postID);
 579
 580                 if(!current_user_can('edit_post', $postID)) {
 581                         $this->auth_required(__('Sorry, you do not have the right to delete this post.'));
 582                 }
 583
 584                 if ($entry['post_type'] == 'attachment') {
 585                         $this->delete_attachment($postID);
 586                 } else {
 587                         $result = wp_delete_post($postID);
 588
 589                         if (!$result) {
 590                                 $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.'));
 591                         }
 592
 593                         log_app('function',"delete_post($postID)");
 594                         $this->ok();
 595                 }
 596
 597         }
 598
 599         /**
 600          * Retrieve attachment.
 601          *
 602          * @since 2.2.0
 603          *
 604          * @param int $postID Optional. Post ID.
 605          */
 606         function get_attachment($postID = null) {
 607                 if( !current_user_can( 'upload_files' ) )
 608                         $this->auth_required( __( 'Sorry, you do not have permission to upload files.' ) );
 609
 610                 if (!isset($postID)) {
 611                         $this->get_attachments();
 612                 } else {
 613                         $this->set_current_entry($postID);
 614                         $output = $this->get_entry($postID, 'attachment');
 615                         log_app('function',"get_attachment($postID)");
 616                         $this->output($output);
 617                 }
 618         }
 619
 620         /**
 621          * Create new attachment.
 622          *
 623          * @since 2.2.0
 624          */
 625         function create_attachment() {
 626
 627                 $type = $this->get_accepted_content_type();
 628
 629                 if(!current_user_can('upload_files'))
 630                         $this->auth_required(__('You do not have permission to upload files.'));
 631
 632                 $fp = fopen("php://input", "rb");
 633                 $bits = null;
 634                 while(!feof($fp)) {
 635                         $bits .= fread($fp, 4096);
 636                 }
 637                 fclose($fp);
 638
 639                 $slug = '';
 640                 if ( isset( $_SERVER['HTTP_SLUG'] ) )
 641                         $slug = sanitize_file_name( $_SERVER['HTTP_SLUG'] );
 642                 elseif ( isset( $_SERVER['HTTP_TITLE'] ) )
 643                         $slug = sanitize_file_name( $_SERVER['HTTP_TITLE'] );
 644                 elseif ( empty( $slug ) ) // just make a random name
 645                         $slug = substr( md5( uniqid( microtime() ) ), 0, 7);
 646                 $ext = preg_replace( '|.*/([a-z0-9]+)|', '$1', $_SERVER['CONTENT_TYPE'] );
 647                 $slug = "$slug.$ext";
 648                 $file = wp_upload_bits( $slug, NULL, $bits);
 649
 650                 log_app('wp_upload_bits returns:',print_r($file,true));
 651
 652                 $url = $file['url'];
 653                 $file = $file['file'];
 654
 655                 do_action('wp_create_file_in_uploads', $file); // replicate
 656
 657                 // Construct the attachment array
 658                 $attachment = array(
 659                         'post_title' => $slug,
 660                         'post_content' => $slug,
 661                         'post_status' => 'attachment',
 662                         'post_parent' => 0,
 663                         'post_mime_type' => $type,
 664                         'guid' => $url
 665                         );
 666
 667                 // Save the data
 668                 $postID = wp_insert_attachment($attachment, $file);
 669
 670                 if (!$postID)
 671                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 672
 673                 $output = $this->get_entry($postID, 'attachment');
 674
 675                 $this->created($postID, $output, 'attachment');
 676                 log_app('function',"create_attachment($postID)");
 677         }
 678
 679         /**
 680          * Update attachment.
 681          *
 682          * @since 2.2.0
 683          *
 684          * @param int $postID Post ID.
 685          */
 686         function put_attachment($postID) {
 687                 // checked for valid content-types (atom+xml)
 688                 // quick check and exit
 689                 $this->get_accepted_content_type($this->atom_content_types);
 690
 691                 $parser = new AtomParser();
 692                 if(!$parser->parse()) {
 693                         $this->bad_request();
 694                 }
 695
 696                 $parsed = array_pop($parser->feed->entries);
 697
 698                 // check for not found
 699                 global $entry;
 700                 $this->set_current_entry($postID);
 701
 702                 if(!current_user_can('edit_post', $entry['ID']))
 703                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 704
 705                 extract($entry);
 706
 707                 $post_title = $parsed->title[1];
 708                 $post_content = $parsed->summary[1];
 709                 $pubtimes = $this->get_publish_time($parsed->updated);
 710                 $post_modified = $pubtimes[0];
 711                 $post_modified_gmt = $pubtimes[1];
 712
 713                 $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_modified', 'post_modified_gmt');
 714                 $this->escape($postdata);
 715
 716                 $result = wp_update_post($postdata);
 717
 718                 if (!$result) {
 719                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.'));
 720                 }
 721
 722                 log_app('function',"put_attachment($postID)");
 723                 $this->ok();
 724         }
 725
 726         /**
 727          * Remove attachment.
 728          *
 729          * @since 2.2.0
 730          *
 731          * @param int $postID Post ID.
 732          */
 733         function delete_attachment($postID) {
 734                 log_app('function',"delete_attachment($postID). File '$location' deleted.");
 735
 736                 // check for not found
 737                 global $entry;
 738                 $this->set_current_entry($postID);
 739
 740                 if(!current_user_can('edit_post', $postID)) {
 741                         $this->auth_required(__('Sorry, you do not have the right to delete this post.'));
 742                 }
 743
 744                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 745                 $filetype = wp_check_filetype($location);
 746
 747                 if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
 748                         $this->internal_error(__('Error ocurred while accessing post metadata for file location.'));
 749
 750                 // delete file
 751                 @unlink($location);
 752
 753                 // delete attachment
 754                 $result = wp_delete_post($postID);
 755
 756                 if (!$result) {
 757                         $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.'));
 758                 }
 759
 760                 log_app('function',"delete_attachment($postID). File '$location' deleted.");
 761                 $this->ok();
 762         }
 763
 764         /**
 765          * Retrieve attachment from post.
 766          *
 767          * @since 2.2.0
 768          *
 769          * @param int $postID Post ID.
 770          */
 771         function get_file($postID) {
 772
 773                 // check for not found
 774                 global $entry;
 775                 $this->set_current_entry($postID);
 776
 777                 // then whether user can edit the specific post
 778                 if(!current_user_can('edit_post', $postID)) {
 779                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 780                 }
 781
 782                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 783                 $location = get_option ('upload_path') . '/' . $location;
 784                 $filetype = wp_check_filetype($location);
 785
 786                 if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
 787                         $this->internal_error(__('Error ocurred while accessing post metadata for file location.'));
 788
 789                 status_header('200');
 790                 header('Content-Type: ' . $entry['post_mime_type']);
 791                 header('Connection: close');
 792
 793                 if ($fp = fopen($location, "rb")) {
 794                         status_header('200');
 795                         header('Content-Type: ' . $entry['post_mime_type']);
 796                         header('Connection: close');
 797
 798                         while(!feof($fp)) {
 799                                 echo fread($fp, 4096);
 800                         }
 801
 802                         fclose($fp);
 803                 } else {
 804                         status_header ('404');
 805                 }
 806
 807                 log_app('function',"get_file($postID)");
 808                 exit;
 809         }
 810
 811         /**
 812          * Upload file to blog and add attachment to post.
 813          *
 814          * @since 2.2.0
 815          *
 816          * @param int $postID Post ID.
 817          */
 818         function put_file($postID) {
 819
 820                 // first check if user can upload
 821                 if(!current_user_can('upload_files'))
 822                         $this->auth_required(__('You do not have permission to upload files.'));
 823
 824                 // check for not found
 825                 global $entry;
 826                 $this->set_current_entry($postID);
 827
 828                 // then whether user can edit the specific post
 829                 if(!current_user_can('edit_post', $postID)) {
 830                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
 831                 }
 832
 833                 $upload_dir = wp_upload_dir( );
 834                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
 835                 $filetype = wp_check_filetype($location);
 836
 837                 $location = "{$upload_dir['basedir']}/{$location}";
 838
 839                 if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
 840                         $this->internal_error(__('Error ocurred while accessing post metadata for file location.'));
 841
 842                 $fp = fopen("php://input", "rb");
 843                 $localfp = fopen($location, "w+");
 844                 while(!feof($fp)) {
 845                         fwrite($localfp,fread($fp, 4096));
 846                 }
 847                 fclose($fp);
 848                 fclose($localfp);
 849
 850                 $ID = $entry['ID'];
 851                 $pubtimes = $this->get_publish_time($entry->published);
 852                 $post_date = $pubtimes[0];
 853                 $post_date_gmt = $pubtimes[1];
 854                 $pubtimes = $this->get_publish_time($parsed->updated);
 855                 $post_modified = $pubtimes[0];
 856                 $post_modified_gmt = $pubtimes[1];
 857
 858                 $post_data = compact('ID', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt');
 859                 $result = wp_update_post($post_data);
 860
 861                 if (!$result) {
 862                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
 863                 }
 864
 865                 wp_update_attachment_metadata( $postID, wp_generate_attachment_metadata( $postID, $location ) );
 866
 867                 log_app('function',"put_file($postID)");
 868                 $this->ok();
 869         }
 870
 871         /**
 872          * Retrieve entries URL.
 873          *
 874          * @since 2.2.0
 875          *
 876          * @param int $page Page ID.
 877          * @return string
 878          */
 879         function get_entries_url($page = null) {
 880                 if($GLOBALS['post_type'] == 'attachment') {
 881                         $path = $this->MEDIA_PATH;
 882                 } else {
 883                         $path = $this->ENTRIES_PATH;
 884                 }
 885                 $url = $this->app_base . $path;
 886                 if(isset($page) && is_int($page)) {
 887                         $url .= "/$page";
 888                 }
 889                 return $url;
 890         }
 891
 892         /**
 893          * Display entries URL.
 894          *
 895          * @since 2.2.0
 896          *
 897          * @param int $page Page ID.
 898          */
 899         function the_entries_url($page = null) {
 900                 echo $this->get_entries_url($page);
 901         }
 902
 903         /**
 904          * Retrieve categories URL.
 905          *
 906          * @since 2.2.0
 907          *
 908          * @param mixed $deprecated Optional, not used.
 909          * @return string
 910          */
 911         function get_categories_url($deprecated = '') {
 912                 return $this->app_base . $this->CATEGORIES_PATH;
 913         }
 914
 915         /**
 916          * Display category URL.
 917          *
 918          * @since 2.2.0
 919          */
 920         function the_categories_url() {
 921                 echo $this->get_categories_url();
 922         }
 923
 924         /**
 925          * Retrieve attachment URL.
 926          *
 927          * @since 2.2.0
 928          *
 929          * @param int $page Page ID.
 930          * @return string
 931          */
 932         function get_attachments_url($page = null) {
 933                 $url = $this->app_base . $this->MEDIA_PATH;
 934                 if(isset($page) && is_int($page)) {
 935                         $url .= "/$page";
 936                 }
 937                 return $url;
 938         }
 939
 940         /**
 941          * Display attachment URL.
 942          *
 943          * @since 2.2.0
 944          *
 945          * @param int $page Page ID.
 946          */
 947         function the_attachments_url($page = null) {
 948                 echo $this->get_attachments_url($page);
 949         }
 950
 951         /**
 952          * Retrieve service URL.
 953          *
 954          * @since 2.3.0
 955          *
 956          * @return string
 957          */
 958         function get_service_url() {
 959                 return $this->app_base . $this->SERVICE_PATH;
 960         }
 961
 962         /**
 963          * Retrieve entry URL.
 964          *
 965          * @since 2.7.0
 966          *
 967          * @param int $postID Post ID.
 968          * @return string
 969          */
 970         function get_entry_url($postID = null) {
 971                 if(!isset($postID)) {
 972                         global $post;
 973                         $postID = (int) $post->ID;
 974                 }
 975
 976                 $url = $this->app_base . $this->ENTRY_PATH . "/$postID";
 977
 978                 log_app('function',"get_entry_url() = $url");
 979                 return $url;
 980         }
 981
 982         /**
 983          * Display entry URL.
 984          *
 985          * @since 2.7.0
 986          *
 987          * @param int $postID Post ID.
 988          */
 989         function the_entry_url($postID = null) {
 990                 echo $this->get_entry_url($postID);
 991         }
 992
 993         /**
 994          * Retrieve media URL.
 995          *
 996          * @since 2.2.0
 997          *
 998          * @param int $postID Post ID.
 999          * @return string
1000          */
1001         function get_media_url($postID = null) {
1002                 if(!isset($postID)) {
1003                         global $post;
1004                         $postID = (int) $post->ID;
1005                 }
1006
1007                 $url = $this->app_base . $this->MEDIA_SINGLE_PATH ."/file/$postID";
1008
1009                 log_app('function',"get_media_url() = $url");
1010                 return $url;
1011         }
1012
1013         /**
1014          * Display the media URL.
1015          *
1016          * @since 2.2.0
1017          *
1018          * @param int $postID Post ID.
1019          */
1020         function the_media_url($postID = null) {
1021                 echo $this->get_media_url($postID);
1022         }
1023
1024         /**
1025          * Set the current entry to post ID.
1026          *
1027          * @since 2.2.0
1028          *
1029          * @param int $postID Post ID.
1030          */
1031         function set_current_entry($postID) {
1032                 global $entry;
1033                 log_app('function',"set_current_entry($postID)");
1034
1035                 if(!isset($postID)) {
1036                         // $this->bad_request();
1037                         $this->not_found();
1038                 }
1039
1040                 $entry = wp_get_single_post($postID,ARRAY_A);
1041
1042                 if(!isset($entry) || !isset($entry['ID']))
1043                         $this->not_found();
1044
1045                 return;
1046         }
1047
1048         /**
1049          * Display posts XML.
1050          *
1051          * @since 2.2.0
1052          *
1053          * @param int $page Optional. Page ID.
1054          * @param string $post_type Optional, default is 'post'. Post Type.
1055          */
1056         function get_posts($page = 1, $post_type = 'post') {
1057                         log_app('function',"get_posts($page, '$post_type')");
1058                         $feed = $this->get_feed($page, $post_type);
1059                         $this->output($feed);
1060         }
1061
1062         /**
1063          * Display attachment XML.
1064          *
1065          * @since 2.2.0
1066          *
1067          * @param int $page Page ID.
1068          * @param string $post_type Optional, default is 'attachment'. Post type.
1069          */
1070         function get_attachments($page = 1, $post_type = 'attachment') {
1071                 log_app('function',"get_attachments($page, '$post_type')");
1072                 $GLOBALS['post_type'] = $post_type;
1073                 $feed = $this->get_feed($page, $post_type);
1074                 $this->output($feed);
1075         }
1076
1077         /**
1078          * Retrieve feed XML.
1079          *
1080          * @since 2.2.0
1081          *
1082          * @param int $page Page ID.
1083          * @param string $post_type Optional, default is post. Post type.
1084          * @return string
1085          */
1086         function get_feed($page = 1, $post_type = 'post') {
1087                 global $post, $wp, $wp_query, $posts, $wpdb, $blog_id;
1088                 log_app('function',"get_feed($page, '$post_type')");
1089                 ob_start();
1090
1091                 $this->ENTRY_PATH = $post_type;
1092
1093                 if(!isset($page)) {
1094                         $page = 1;
1095                 }
1096                 $page = (int) $page;
1097
1098                 $count = get_option('posts_per_rss');
1099
1100                 wp('posts_per_page=' . $count . '&offset=' . ($count * ($page-1) . '&orderby=modified'));
1101
1102                 $post = $GLOBALS['post'];
1103                 $posts = $GLOBALS['posts'];
1104                 $wp = $GLOBALS['wp'];
1105                 $wp_query = $GLOBALS['wp_query'];
1106                 $wpdb = $GLOBALS['wpdb'];
1107                 $blog_id = (int) $GLOBALS['blog_id'];
1108                 log_app('function',"query_posts(# " . print_r($wp_query, true) . "#)");
1109
1110                 log_app('function',"total_count(# $wp_query->max_num_pages #)");
1111                 $last_page = $wp_query->max_num_pages;
1112                 $next_page = (($page + 1) > $last_page) ? NULL : $page + 1;
1113                 $prev_page = ($page - 1) < 1 ? NULL : $page - 1;
1114                 $last_page = ((int)$last_page == 1 || (int)$last_page == 0) ? NULL : (int) $last_page;
1115                 $self_page = $page > 1 ? $page : NULL;
1116 ?><feed xmlns="<?php echo $this->ATOM_NS ?>" xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>">
1117 <id><?php $this->the_entries_url() ?></id>
1118 <updated><?php echo mysql2date('Y-m-d\TH:i:s\Z', get_lastpostmodified('GMT'), false); ?></updated>
1119 <title type="text"><?php bloginfo_rss('name') ?></title>
1120 <subtitle type="text"><?php bloginfo_rss("description") ?></subtitle>
1121 <link rel="first" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url() ?>" />
1122 <?php if(isset($prev_page)): ?>
1123 <link rel="previous" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($prev_page) ?>" />
1124 <?php endif; ?>
1125 <?php if(isset($next_page)): ?>
1126 <link rel="next" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($next_page) ?>" />
1127 <?php endif; ?>
1128 <link rel="last" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($last_page) ?>" />
1129 <link rel="self" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($self_page) ?>" />
1130 <rights type="text">Copyright <?php echo date('Y'); ?></rights>
1131 <?php the_generator( 'atom' ); ?>
1132 <?php if ( have_posts() ) {
1133                         while ( have_posts() ) {
1134                                 the_post();
1135                                 $this->echo_entry();
1136                         }
1137                 }
1138 ?></feed>
1139 <?php
1140                 $feed = ob_get_contents();
1141                 ob_end_clean();
1142                 return $feed;
1143         }
1144
1145         /**
1146          * Display entry XML.
1147          *
1148          * @since 2.2.0
1149          *
1150          * @param int $postID Post ID.
1151          * @param string $post_type Optional, default is post. Post type.
1152          * @return string.
1153          */
1154         function get_entry($postID, $post_type = 'post') {
1155                 log_app('function',"get_entry($postID, '$post_type')");
1156                 ob_start();
1157                 switch($post_type) {
1158                         case 'post':
1159                                 $varname = 'p';
1160                                 break;
1161                         case 'attachment':
1162                                 $this->ENTRY_PATH = 'attachment';
1163                                 $varname = 'attachment_id';
1164                                 break;
1165                 }
1166                 query_posts($varname . '=' . $postID);
1167                 if ( have_posts() ) {
1168                         while ( have_posts() ) {
1169                                 the_post();
1170                                 $this->echo_entry();
1171                                 log_app('$post',print_r($GLOBALS['post'],true));
1172                                 $entry = ob_get_contents();
1173                                 break;
1174                         }
1175                 }
1176                 ob_end_clean();
1177
1178                 log_app('get_entry returning:',$entry);
1179                 return $entry;
1180         }
1181
1182         /**
1183          * Display post content XML.
1184          *
1185          * @since 2.3.0
1186          */
1187         function echo_entry() { ?>
1188 <entry xmlns="<?php echo $this->ATOM_NS ?>"
1189        xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>">
1190         <id><?php the_guid($GLOBALS['post']->ID); ?></id>
1191 <?php list($content_type, $content) = prep_atom_text_construct(get_the_title()); ?>
1192         <title type="<?php echo $content_type ?>"><?php echo $content ?></title>
1193         <updated><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></updated>
1194         <published><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></published>
1195         <app:edited><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></app:edited>
1196         <app:control>
1197                 <app:draft><?php echo ($GLOBALS['post']->post_status == 'draft' ? 'yes' : 'no') ?></app:draft>
1198         </app:control>
1199         <author>
1200                 <name><?php the_author()?></name>
1201 <?php if ( get_the_author_meta('url') && get_the_author_meta('url') != 'http://' ) { ?>
1202                 <uri><?php the_author_meta('url') ?></uri>
1203 <?php } ?>
1204         </author>
1205 <?php if($GLOBALS['post']->post_type == 'attachment') { ?>
1206         <link rel="edit-media" href="<?php $this->the_media_url() ?>" />
1207         <content type="<?php echo $GLOBALS['post']->post_mime_type ?>" src="<?php the_guid(); ?>"/>
1208 <?php } else { ?>
1209         <link href="<?php the_permalink_rss() ?>" />
1210 <?php if ( strlen( $GLOBALS['post']->post_content ) ) :
1211 list($content_type, $content) = prep_atom_text_construct(get_the_content()); ?>
1212         <content type="<?php echo $content_type ?>"><?php echo $content ?></content>
1213 <?php endif; ?>
1214 <?php } ?>
1215         <link rel="edit" href="<?php $this->the_entry_url() ?>" />
1216         <?php the_category_rss( 'atom' ); ?>
1217 <?php list($content_type, $content) = prep_atom_text_construct(get_the_excerpt()); ?>
1218         <summary type="<?php echo $content_type ?>"><?php echo $content ?></summary>
1219 </entry>
1220 <?php }
1221
1222         /**
1223          * Set 'OK' (200) status header.
1224          *
1225          * @since 2.2.0
1226          */
1227         function ok() {
1228                 log_app('Status','200: OK');
1229                 header('Content-Type: text/plain');
1230                 status_header('200');
1231                 exit;
1232         }
1233
1234         /**
1235          * Set 'No Content' (204) status header.
1236          *
1237          * @since 2.2.0
1238          */
1239         function no_content() {
1240                 log_app('Status','204: No Content');
1241                 header('Content-Type: text/plain');
1242                 status_header('204');
1243                 echo "Deleted.";
1244                 exit;
1245         }
1246
1247         /**
1248          * Display 'Internal Server Error' (500) status header.
1249          *
1250          * @since 2.2.0
1251          *
1252          * @param string $msg Optional. Status string.
1253          */
1254         function internal_error($msg = 'Internal Server Error') {
1255                 log_app('Status','500: Server Error');
1256                 header('Content-Type: text/plain');
1257                 status_header('500');
1258                 echo $msg;
1259                 exit;
1260         }
1261
1262         /**
1263          * Set 'Bad Request' (400) status header.
1264          *
1265          * @since 2.2.0
1266          */
1267         function bad_request() {
1268                 log_app('Status','400: Bad Request');
1269                 header('Content-Type: text/plain');
1270                 status_header('400');
1271                 exit;
1272         }
1273
1274         /**
1275          * Set 'Length Required' (411) status header.
1276          *
1277          * @since 2.2.0
1278          */
1279         function length_required() {
1280                 log_app('Status','411: Length Required');
1281                 header("HTTP/1.1 411 Length Required");
1282                 header('Content-Type: text/plain');
1283                 status_header('411');
1284                 exit;
1285         }
1286
1287         /**
1288          * Set 'Unsupported Media Type' (415) status header.
1289          *
1290          * @since 2.2.0
1291          */
1292         function invalid_media() {
1293                 log_app('Status','415: Unsupported Media Type');
1294                 header("HTTP/1.1 415 Unsupported Media Type");
1295                 header('Content-Type: text/plain');
1296                 exit;
1297         }
1298
1299         /**
1300          * Set 'Forbidden' (403) status header.
1301          *
1302          * @since 2.6.0
1303          */
1304         function forbidden($reason='') {
1305                 log_app('Status','403: Forbidden');
1306                 header('Content-Type: text/plain');
1307                 status_header('403');
1308                 echo $reason;
1309                 exit;
1310         }
1311
1312         /**
1313          * Set 'Not Found' (404) status header.
1314          *
1315          * @since 2.2.0
1316          */
1317         function not_found() {
1318                 log_app('Status','404: Not Found');
1319                 header('Content-Type: text/plain');
1320                 status_header('404');
1321                 exit;
1322         }
1323
1324         /**
1325          * Set 'Not Allowed' (405) status header.
1326          *
1327          * @since 2.2.0
1328          */
1329         function not_allowed($allow) {
1330                 log_app('Status','405: Not Allowed');
1331                 header('Allow: ' . join(',', $allow));
1332                 status_header('405');
1333                 exit;
1334         }
1335
1336         /**
1337          * Display Redirect (302) content and set status headers.
1338          *
1339          * @since 2.3.0
1340          */
1341         function redirect($url) {
1342
1343                 log_app('Status','302: Redirect');
1344                 $escaped_url = esc_attr($url);
1345                 $content = <<<EOD
1346 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1347 <html>
1348   <head>
1349     <title>302 Found</title>
1350   </head>
1351 <body>
1352   <h1>Found</h1>
1353   <p>The document has moved <a href="$escaped_url">here</a>.</p>
1354   </body>
1355 </html>
1356
1357 EOD;
1358                 header('HTTP/1.1 302 Moved');
1359                 header('Content-Type: text/html');
1360                 header('Location: ' . $url);
1361                 echo $content;
1362                 exit;
1363
1364         }
1365
1366         /**
1367          * Set 'Client Error' (400) status header.
1368          *
1369          * @since 2.2.0
1370          */
1371         function client_error($msg = 'Client Error') {
1372                 log_app('Status','400: Client Error');
1373                 header('Content-Type: text/plain');
1374                 status_header('400');
1375                 exit;
1376         }
1377
1378         /**
1379          * Set created status headers (201).
1380          *
1381          * Sets the 'content-type', 'content-location', and 'location'.
1382          *
1383          * @since 2.2.0
1384          */
1385         function created($post_ID, $content, $post_type = 'post') {
1386                 log_app('created()::$post_ID',"$post_ID, $post_type");
1387                 $edit = $this->get_entry_url($post_ID);
1388                 switch($post_type) {
1389                         case 'post':
1390                                 $ctloc = $this->get_entry_url($post_ID);
1391                                 break;
1392                         case 'attachment':
1393                                 $edit = $this->app_base . "attachments/$post_ID";
1394                                 break;
1395                 }
1396                 header("Content-Type: $this->ATOM_CONTENT_TYPE");
1397                 if(isset($ctloc))
1398                         header('Content-Location: ' . $ctloc);
1399                 header('Location: ' . $edit);
1400                 status_header('201');
1401                 echo $content;
1402                 exit;
1403         }
1404
1405         /**
1406          * Set 'Auth Required' (401) headers.
1407          *
1408          * @since 2.2.0
1409          *
1410          * @param string $msg Status header content and HTML content.
1411          */
1412         function auth_required($msg) {
1413                 log_app('Status','401: Auth Required');
1414                 nocache_headers();
1415                 header('WWW-Authenticate: Basic realm="WordPress Atom Protocol"');
1416                 header("HTTP/1.1 401 $msg");
1417                 header('Status: 401 ' . $msg);
1418                 header('Content-Type: text/html');
1419                 $content = <<<EOD
1420 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1421 <html>
1422   <head>
1423     <title>401 Unauthorized</title>
1424   </head>
1425 <body>
1426     <h1>401 Unauthorized</h1>
1427     <p>$msg</p>
1428   </body>
1429 </html>
1430
1431 EOD;
1432                 echo $content;
1433                 exit;
1434         }
1435
1436         /**
1437          * Display XML and set headers with content type.
1438          *
1439          * @since 2.2.0
1440          *
1441          * @param string $xml Display feed content.
1442          * @param string $ctype Optional, default is 'atom+xml'. Feed content type.
1443          */
1444         function output($xml, $ctype = 'application/atom+xml') {
1445                         status_header('200');
1446                         $xml = '<?xml version="1.0" encoding="' . strtolower(get_option('blog_charset')) . '"?>'."\n".$xml;
1447                         header('Connection: close');
1448                         header('Content-Length: '. strlen($xml));
1449                         header('Content-Type: ' . $ctype);
1450                         header('Content-Disposition: attachment; filename=atom.xml');
1451                         header('Date: '. date('r'));
1452                         if($this->do_output)
1453                                 echo $xml;
1454                         log_app('function', "output:\n$xml");
1455                         exit;
1456         }
1457
1458         /**
1459          * Sanitize content for database usage.
1460          *
1461          * @since 2.2.0
1462          *
1463          * @param array $array Sanitize array and multi-dimension array.
1464          */
1465         function escape(&$array) {
1466                 global $wpdb;
1467
1468                 foreach ($array as $k => $v) {
1469                                 if (is_array($v)) {
1470                                                 $this->escape($array[$k]);
1471                                 } else if (is_object($v)) {
1472                                                 //skip
1473                                 } else {
1474                                                 $array[$k] = $wpdb->escape($v);
1475                                 }
1476                 }
1477         }
1478
1479         /**
1480          * Access credential through various methods and perform login.
1481          *
1482          * @since 2.2.0
1483          *
1484          * @return bool
1485          */
1486         function authenticate() {
1487                 log_app("authenticate()",print_r($_ENV, true));
1488
1489                 // if using mod_rewrite/ENV hack
1490                 // http://www.besthostratings.com/articles/http-auth-php-cgi.html
1491                 if(isset($_SERVER['HTTP_AUTHORIZATION'])) {
1492                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1493                                 explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
1494                 } else if (isset($_SERVER['REDIRECT_REMOTE_USER'])) {
1495                         // Workaround for setups that do not forward HTTP_AUTHORIZATION
1496                         // See http://trac.wordpress.org/ticket/7361
1497                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1498                                 explode(':', base64_decode(substr($_SERVER['REDIRECT_REMOTE_USER'], 6)));
1499                 }
1500
1501                 // If Basic Auth is working...
1502                 if(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
1503                         log_app("Basic Auth",$_SERVER['PHP_AUTH_USER']);
1504                 }
1505
1506                 $user = wp_authenticate($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
1507                 if ( $user && !is_wp_error($user) ) {
1508                         wp_set_current_user($user->ID);
1509                         log_app("authenticate()", $user->user_login);
1510                         return true;
1511                 }
1512
1513                 return false;
1514         }
1515
1516         /**
1517          * Retrieve accepted content types.
1518          *
1519          * @since 2.2.0
1520          *
1521          * @param array $types Optional. Content Types.
1522          * @return string
1523          */
1524         function get_accepted_content_type($types = null) {
1525
1526                 if(!isset($types)) {
1527                         $types = $this->media_content_types;
1528                 }
1529
1530                 if(!isset($_SERVER['CONTENT_LENGTH']) || !isset($_SERVER['CONTENT_TYPE'])) {
1531                         $this->length_required();
1532                 }
1533
1534                 $type = $_SERVER['CONTENT_TYPE'];
1535                 list($type,$subtype) = explode('/',$type);
1536                 list($subtype) = explode(";",$subtype); // strip MIME parameters
1537                 log_app("get_accepted_content_type", "type=$type, subtype=$subtype");
1538
1539                 foreach($types as $t) {
1540                         list($acceptedType,$acceptedSubtype) = explode('/',$t);
1541                         if($acceptedType == '*' || $acceptedType == $type) {
1542                                 if($acceptedSubtype == '*' || $acceptedSubtype == $subtype)
1543                                         return $type . "/" . $subtype;
1544                         }
1545                 }
1546
1547                 $this->invalid_media();
1548         }
1549
1550         /**
1551          * Process conditionals for posts.
1552          *
1553          * @since 2.2.0
1554          */
1555         function process_conditionals() {
1556
1557                 if(empty($this->params)) return;
1558                 if($_SERVER['REQUEST_METHOD'] == 'DELETE') return;
1559
1560                 switch($this->params[0]) {
1561                         case $this->ENTRY_PATH:
1562                                 global $post;
1563                                 $post = wp_get_single_post($this->params[1]);
1564                                 $wp_last_modified = get_post_modified_time('D, d M Y H:i:s', true);
1565                                 $post = NULL;
1566                                 break;
1567                         case $this->ENTRIES_PATH:
1568                                 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
1569                                 break;
1570                         default:
1571                                 return;
1572                 }
1573                 $wp_etag = md5($wp_last_modified);
1574                 @header("Last-Modified: $wp_last_modified");
1575                 @header("ETag: $wp_etag");
1576
1577                 // Support for Conditional GET
1578                 if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
1579                         $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
1580                 else
1581                         $client_etag = false;
1582
1583                 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
1584                 // If string is empty, return 0. If not, attempt to parse into a timestamp
1585                 $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
1586
1587                 // Make a timestamp for our most recent modification...
1588                 $wp_modified_timestamp = strtotime($wp_last_modified);
1589
1590                 if ( ($client_last_modified && $client_etag) ?
1591                 (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
1592                 (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
1593                         status_header( 304 );
1594                         exit;
1595                 }
1596         }
1597
1598         /**
1599          * Convert RFC3339 time string to timestamp.
1600          *
1601          * @since 2.3.0
1602          *
1603          * @param string $str String to time.
1604          * @return bool|int false if format is incorrect.
1605          */
1606         function rfc3339_str2time($str) {
1607
1608                 $match = false;
1609                 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, $match))
1610                         return false;
1611
1612                 if($match[3] == 'Z')
1613                         $match[3] == '+0000';
1614
1615                 return strtotime($match[1] . " " . $match[2] . " " . $match[3]);
1616         }
1617
1618         /**
1619          * Retrieve published time to display in XML.
1620          *
1621          * @since 2.3.0
1622          *
1623          * @param string $published Time string.
1624          * @return string
1625          */
1626         function get_publish_time($published) {
1627
1628                 $pubtime = $this->rfc3339_str2time($published);
1629
1630                 if(!$pubtime) {
1631                         return array(current_time('mysql'),current_time('mysql',1));
1632                 } else {
1633                         return array(date("Y-m-d H:i:s", $pubtime), gmdate("Y-m-d H:i:s", $pubtime));
1634                 }
1635         }
1636
1637 }
1638
1639 /**
1640  * AtomServer
1641  * @var AtomServer
1642  * @global object $server
1643  */
1644 $server = new AtomServer();
1645 $server->handle_request();
1646
1647 ?>