Wordpress 2.8-scripts
[autoinstalls/wordpress.git] / 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                 $filetype = wp_check_filetype($location);
784
785                 if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
786                         $this->internal_error(__('Error ocurred while accessing post metadata for file location.'));
787
788                 status_header('200');
789                 header('Content-Type: ' . $entry['post_mime_type']);
790                 header('Connection: close');
791
792                 $fp = fopen($location, "rb");
793                 while(!feof($fp)) {
794                         echo fread($fp, 4096);
795                 }
796                 fclose($fp);
797
798                 log_app('function',"get_file($postID)");
799                 exit;
800         }
801
802         /**
803          * Upload file to blog and add attachment to post.
804          *
805          * @since 2.2.0
806          *
807          * @param int $postID Post ID.
808          */
809         function put_file($postID) {
810
811                 // first check if user can upload
812                 if(!current_user_can('upload_files'))
813                         $this->auth_required(__('You do not have permission to upload files.'));
814
815                 // check for not found
816                 global $entry;
817                 $this->set_current_entry($postID);
818
819                 // then whether user can edit the specific post
820                 if(!current_user_can('edit_post', $postID)) {
821                         $this->auth_required(__('Sorry, you do not have the right to edit this post.'));
822                 }
823
824                 $upload_dir = wp_upload_dir( );
825                 $location = get_post_meta($entry['ID'], '_wp_attached_file', true);
826                 $filetype = wp_check_filetype($location);
827
828                 $location = "{$upload_dir['basedir']}/{$location}";
829
830                 if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']))
831                         $this->internal_error(__('Error ocurred while accessing post metadata for file location.'));
832
833                 $fp = fopen("php://input", "rb");
834                 $localfp = fopen($location, "w+");
835                 while(!feof($fp)) {
836                         fwrite($localfp,fread($fp, 4096));
837                 }
838                 fclose($fp);
839                 fclose($localfp);
840
841                 $ID = $entry['ID'];
842                 $pubtimes = $this->get_publish_time($entry->published);
843                 $post_date = $pubtimes[0];
844                 $post_date_gmt = $pubtimes[1];
845                 $pubtimes = $this->get_publish_time($parsed->updated);
846                 $post_modified = $pubtimes[0];
847                 $post_modified_gmt = $pubtimes[1];
848
849                 $post_data = compact('ID', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt');
850                 $result = wp_update_post($post_data);
851
852                 if (!$result) {
853                         $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
854                 }
855
856                 wp_update_attachment_metadata( $postID, wp_generate_attachment_metadata( $postID, $location ) );
857
858                 log_app('function',"put_file($postID)");
859                 $this->ok();
860         }
861
862         /**
863          * Retrieve entries URL.
864          *
865          * @since 2.2.0
866          *
867          * @param int $page Page ID.
868          * @return string
869          */
870         function get_entries_url($page = null) {
871                 if($GLOBALS['post_type'] == 'attachment') {
872                         $path = $this->MEDIA_PATH;
873                 } else {
874                         $path = $this->ENTRIES_PATH;
875                 }
876                 $url = $this->app_base . $path;
877                 if(isset($page) && is_int($page)) {
878                         $url .= "/$page";
879                 }
880                 return $url;
881         }
882
883         /**
884          * Display entries URL.
885          *
886          * @since 2.2.0
887          *
888          * @param int $page Page ID.
889          */
890         function the_entries_url($page = null) {
891                 echo $this->get_entries_url($page);
892         }
893
894         /**
895          * Retrieve categories URL.
896          *
897          * @since 2.2.0
898          *
899          * @param mixed $deprecated Optional, not used.
900          * @return string
901          */
902         function get_categories_url($deprecated = '') {
903                 return $this->app_base . $this->CATEGORIES_PATH;
904         }
905
906         /**
907          * Display category URL.
908          *
909          * @since 2.2.0
910          */
911         function the_categories_url() {
912                 echo $this->get_categories_url();
913         }
914
915         /**
916          * Retrieve attachment URL.
917          *
918          * @since 2.2.0
919          *
920          * @param int $page Page ID.
921          * @return string
922          */
923         function get_attachments_url($page = null) {
924                 $url = $this->app_base . $this->MEDIA_PATH;
925                 if(isset($page) && is_int($page)) {
926                         $url .= "/$page";
927                 }
928                 return $url;
929         }
930
931         /**
932          * Display attachment URL.
933          *
934          * @since 2.2.0
935          *
936          * @param int $page Page ID.
937          */
938         function the_attachments_url($page = null) {
939                 echo $this->get_attachments_url($page);
940         }
941
942         /**
943          * Retrieve service URL.
944          *
945          * @since 2.3.0
946          *
947          * @return string
948          */
949         function get_service_url() {
950                 return $this->app_base . $this->SERVICE_PATH;
951         }
952
953         /**
954          * Retrieve entry URL.
955          *
956          * @since 2.7.0
957          *
958          * @param int $postID Post ID.
959          * @return string
960          */
961         function get_entry_url($postID = null) {
962                 if(!isset($postID)) {
963                         global $post;
964                         $postID = (int) $post->ID;
965                 }
966
967                 $url = $this->app_base . $this->ENTRY_PATH . "/$postID";
968
969                 log_app('function',"get_entry_url() = $url");
970                 return $url;
971         }
972
973         /**
974          * Display entry URL.
975          *
976          * @since 2.7.0
977          *
978          * @param int $postID Post ID.
979          */
980         function the_entry_url($postID = null) {
981                 echo $this->get_entry_url($postID);
982         }
983
984         /**
985          * Retrieve media URL.
986          *
987          * @since 2.2.0
988          *
989          * @param int $postID Post ID.
990          * @return string
991          */
992         function get_media_url($postID = null) {
993                 if(!isset($postID)) {
994                         global $post;
995                         $postID = (int) $post->ID;
996                 }
997
998                 $url = $this->app_base . $this->MEDIA_SINGLE_PATH ."/file/$postID";
999
1000                 log_app('function',"get_media_url() = $url");
1001                 return $url;
1002         }
1003
1004         /**
1005          * Display the media URL.
1006          *
1007          * @since 2.2.0
1008          *
1009          * @param int $postID Post ID.
1010          */
1011         function the_media_url($postID = null) {
1012                 echo $this->get_media_url($postID);
1013         }
1014
1015         /**
1016          * Set the current entry to post ID.
1017          *
1018          * @since 2.2.0
1019          *
1020          * @param int $postID Post ID.
1021          */
1022         function set_current_entry($postID) {
1023                 global $entry;
1024                 log_app('function',"set_current_entry($postID)");
1025
1026                 if(!isset($postID)) {
1027                         // $this->bad_request();
1028                         $this->not_found();
1029                 }
1030
1031                 $entry = wp_get_single_post($postID,ARRAY_A);
1032
1033                 if(!isset($entry) || !isset($entry['ID']))
1034                         $this->not_found();
1035
1036                 return;
1037         }
1038
1039         /**
1040          * Display posts XML.
1041          *
1042          * @since 2.2.0
1043          *
1044          * @param int $page Optional. Page ID.
1045          * @param string $post_type Optional, default is 'post'. Post Type.
1046          */
1047         function get_posts($page = 1, $post_type = 'post') {
1048                         log_app('function',"get_posts($page, '$post_type')");
1049                         $feed = $this->get_feed($page, $post_type);
1050                         $this->output($feed);
1051         }
1052
1053         /**
1054          * Display attachment XML.
1055          *
1056          * @since 2.2.0
1057          *
1058          * @param int $page Page ID.
1059          * @param string $post_type Optional, default is 'attachment'. Post type.
1060          */
1061         function get_attachments($page = 1, $post_type = 'attachment') {
1062                 log_app('function',"get_attachments($page, '$post_type')");
1063                 $GLOBALS['post_type'] = $post_type;
1064                 $feed = $this->get_feed($page, $post_type);
1065                 $this->output($feed);
1066         }
1067
1068         /**
1069          * Retrieve feed XML.
1070          *
1071          * @since 2.2.0
1072          *
1073          * @param int $page Page ID.
1074          * @param string $post_type Optional, default is post. Post type.
1075          * @return string
1076          */
1077         function get_feed($page = 1, $post_type = 'post') {
1078                 global $post, $wp, $wp_query, $posts, $wpdb, $blog_id;
1079                 log_app('function',"get_feed($page, '$post_type')");
1080                 ob_start();
1081
1082                 $this->ENTRY_PATH = $post_type;
1083
1084                 if(!isset($page)) {
1085                         $page = 1;
1086                 }
1087                 $page = (int) $page;
1088
1089                 $count = get_option('posts_per_rss');
1090
1091                 wp('posts_per_page=' . $count . '&offset=' . ($count * ($page-1) . '&orderby=modified'));
1092
1093                 $post = $GLOBALS['post'];
1094                 $posts = $GLOBALS['posts'];
1095                 $wp = $GLOBALS['wp'];
1096                 $wp_query = $GLOBALS['wp_query'];
1097                 $wpdb = $GLOBALS['wpdb'];
1098                 $blog_id = (int) $GLOBALS['blog_id'];
1099                 log_app('function',"query_posts(# " . print_r($wp_query, true) . "#)");
1100
1101                 log_app('function',"total_count(# $wp_query->max_num_pages #)");
1102                 $last_page = $wp_query->max_num_pages;
1103                 $next_page = (($page + 1) > $last_page) ? NULL : $page + 1;
1104                 $prev_page = ($page - 1) < 1 ? NULL : $page - 1;
1105                 $last_page = ((int)$last_page == 1 || (int)$last_page == 0) ? NULL : (int) $last_page;
1106                 $self_page = $page > 1 ? $page : NULL;
1107 ?><feed xmlns="<?php echo $this->ATOM_NS ?>" xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>">
1108 <id><?php $this->the_entries_url() ?></id>
1109 <updated><?php echo mysql2date('Y-m-d\TH:i:s\Z', get_lastpostmodified('GMT'), false); ?></updated>
1110 <title type="text"><?php bloginfo_rss('name') ?></title>
1111 <subtitle type="text"><?php bloginfo_rss("description") ?></subtitle>
1112 <link rel="first" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url() ?>" />
1113 <?php if(isset($prev_page)): ?>
1114 <link rel="previous" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($prev_page) ?>" />
1115 <?php endif; ?>
1116 <?php if(isset($next_page)): ?>
1117 <link rel="next" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($next_page) ?>" />
1118 <?php endif; ?>
1119 <link rel="last" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($last_page) ?>" />
1120 <link rel="self" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($self_page) ?>" />
1121 <rights type="text">Copyright <?php echo date('Y'); ?></rights>
1122 <?php the_generator( 'atom' ); ?>
1123 <?php if ( have_posts() ) {
1124                         while ( have_posts() ) {
1125                                 the_post();
1126                                 $this->echo_entry();
1127                         }
1128                 }
1129 ?></feed>
1130 <?php
1131                 $feed = ob_get_contents();
1132                 ob_end_clean();
1133                 return $feed;
1134         }
1135
1136         /**
1137          * Display entry XML.
1138          *
1139          * @since 2.2.0
1140          *
1141          * @param int $postID Post ID.
1142          * @param string $post_type Optional, default is post. Post type.
1143          * @return string.
1144          */
1145         function get_entry($postID, $post_type = 'post') {
1146                 log_app('function',"get_entry($postID, '$post_type')");
1147                 ob_start();
1148                 switch($post_type) {
1149                         case 'post':
1150                                 $varname = 'p';
1151                                 break;
1152                         case 'attachment':
1153                                 $this->ENTRY_PATH = 'attachment';
1154                                 $varname = 'attachment_id';
1155                                 break;
1156                 }
1157                 query_posts($varname . '=' . $postID);
1158                 if ( have_posts() ) {
1159                         while ( have_posts() ) {
1160                                 the_post();
1161                                 $this->echo_entry();
1162                                 log_app('$post',print_r($GLOBALS['post'],true));
1163                                 $entry = ob_get_contents();
1164                                 break;
1165                         }
1166                 }
1167                 ob_end_clean();
1168
1169                 log_app('get_entry returning:',$entry);
1170                 return $entry;
1171         }
1172
1173         /**
1174          * Display post content XML.
1175          *
1176          * @since 2.3.0
1177          */
1178         function echo_entry() { ?>
1179 <entry xmlns="<?php echo $this->ATOM_NS ?>"
1180        xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>">
1181         <id><?php the_guid($GLOBALS['post']->ID); ?></id>
1182 <?php list($content_type, $content) = prep_atom_text_construct(get_the_title()); ?>
1183         <title type="<?php echo $content_type ?>"><?php echo $content ?></title>
1184         <updated><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></updated>
1185         <published><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></published>
1186         <app:edited><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></app:edited>
1187         <app:control>
1188                 <app:draft><?php echo ($GLOBALS['post']->post_status == 'draft' ? 'yes' : 'no') ?></app:draft>
1189         </app:control>
1190         <author>
1191                 <name><?php the_author()?></name>
1192 <?php if ( get_the_author_meta('url') && get_the_author_meta('url') != 'http://' ) { ?>
1193                 <uri><?php the_author_meta('url') ?></uri>
1194 <?php } ?>
1195         </author>
1196 <?php if($GLOBALS['post']->post_type == 'attachment') { ?>
1197         <link rel="edit-media" href="<?php $this->the_media_url() ?>" />
1198         <content type="<?php echo $GLOBALS['post']->post_mime_type ?>" src="<?php the_guid(); ?>"/>
1199 <?php } else { ?>
1200         <link href="<?php the_permalink_rss() ?>" />
1201 <?php if ( strlen( $GLOBALS['post']->post_content ) ) :
1202 list($content_type, $content) = prep_atom_text_construct(get_the_content()); ?>
1203         <content type="<?php echo $content_type ?>"><?php echo $content ?></content>
1204 <?php endif; ?>
1205 <?php } ?>
1206         <link rel="edit" href="<?php $this->the_entry_url() ?>" />
1207         <?php the_category_rss( 'atom' ); ?>
1208 <?php list($content_type, $content) = prep_atom_text_construct(get_the_excerpt()); ?>
1209         <summary type="<?php echo $content_type ?>"><?php echo $content ?></summary>
1210 </entry>
1211 <?php }
1212
1213         /**
1214          * Set 'OK' (200) status header.
1215          *
1216          * @since 2.2.0
1217          */
1218         function ok() {
1219                 log_app('Status','200: OK');
1220                 header('Content-Type: text/plain');
1221                 status_header('200');
1222                 exit;
1223         }
1224
1225         /**
1226          * Set 'No Content' (204) status header.
1227          *
1228          * @since 2.2.0
1229          */
1230         function no_content() {
1231                 log_app('Status','204: No Content');
1232                 header('Content-Type: text/plain');
1233                 status_header('204');
1234                 echo "Deleted.";
1235                 exit;
1236         }
1237
1238         /**
1239          * Display 'Internal Server Error' (500) status header.
1240          *
1241          * @since 2.2.0
1242          *
1243          * @param string $msg Optional. Status string.
1244          */
1245         function internal_error($msg = 'Internal Server Error') {
1246                 log_app('Status','500: Server Error');
1247                 header('Content-Type: text/plain');
1248                 status_header('500');
1249                 echo $msg;
1250                 exit;
1251         }
1252
1253         /**
1254          * Set 'Bad Request' (400) status header.
1255          *
1256          * @since 2.2.0
1257          */
1258         function bad_request() {
1259                 log_app('Status','400: Bad Request');
1260                 header('Content-Type: text/plain');
1261                 status_header('400');
1262                 exit;
1263         }
1264
1265         /**
1266          * Set 'Length Required' (411) status header.
1267          *
1268          * @since 2.2.0
1269          */
1270         function length_required() {
1271                 log_app('Status','411: Length Required');
1272                 header("HTTP/1.1 411 Length Required");
1273                 header('Content-Type: text/plain');
1274                 status_header('411');
1275                 exit;
1276         }
1277
1278         /**
1279          * Set 'Unsupported Media Type' (415) status header.
1280          *
1281          * @since 2.2.0
1282          */
1283         function invalid_media() {
1284                 log_app('Status','415: Unsupported Media Type');
1285                 header("HTTP/1.1 415 Unsupported Media Type");
1286                 header('Content-Type: text/plain');
1287                 exit;
1288         }
1289
1290         /**
1291          * Set 'Forbidden' (403) status header.
1292          *
1293          * @since 2.6.0
1294          */
1295         function forbidden($reason='') {
1296                 log_app('Status','403: Forbidden');
1297                 header('Content-Type: text/plain');
1298                 status_header('403');
1299                 echo $reason;
1300                 exit;
1301         }
1302
1303         /**
1304          * Set 'Not Found' (404) status header.
1305          *
1306          * @since 2.2.0
1307          */
1308         function not_found() {
1309                 log_app('Status','404: Not Found');
1310                 header('Content-Type: text/plain');
1311                 status_header('404');
1312                 exit;
1313         }
1314
1315         /**
1316          * Set 'Not Allowed' (405) status header.
1317          *
1318          * @since 2.2.0
1319          */
1320         function not_allowed($allow) {
1321                 log_app('Status','405: Not Allowed');
1322                 header('Allow: ' . join(',', $allow));
1323                 status_header('405');
1324                 exit;
1325         }
1326
1327         /**
1328          * Display Redirect (302) content and set status headers.
1329          *
1330          * @since 2.3.0
1331          */
1332         function redirect($url) {
1333
1334                 log_app('Status','302: Redirect');
1335                 $escaped_url = esc_attr($url);
1336                 $content = <<<EOD
1337 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1338 <html>
1339   <head>
1340     <title>302 Found</title>
1341   </head>
1342 <body>
1343   <h1>Found</h1>
1344   <p>The document has moved <a href="$escaped_url">here</a>.</p>
1345   </body>
1346 </html>
1347
1348 EOD;
1349                 header('HTTP/1.1 302 Moved');
1350                 header('Content-Type: text/html');
1351                 header('Location: ' . $url);
1352                 echo $content;
1353                 exit;
1354
1355         }
1356
1357         /**
1358          * Set 'Client Error' (400) status header.
1359          *
1360          * @since 2.2.0
1361          */
1362         function client_error($msg = 'Client Error') {
1363                 log_app('Status','400: Client Error');
1364                 header('Content-Type: text/plain');
1365                 status_header('400');
1366                 exit;
1367         }
1368
1369         /**
1370          * Set created status headers (201).
1371          *
1372          * Sets the 'content-type', 'content-location', and 'location'.
1373          *
1374          * @since 2.2.0
1375          */
1376         function created($post_ID, $content, $post_type = 'post') {
1377                 log_app('created()::$post_ID',"$post_ID, $post_type");
1378                 $edit = $this->get_entry_url($post_ID);
1379                 switch($post_type) {
1380                         case 'post':
1381                                 $ctloc = $this->get_entry_url($post_ID);
1382                                 break;
1383                         case 'attachment':
1384                                 $edit = $this->app_base . "attachments/$post_ID";
1385                                 break;
1386                 }
1387                 header("Content-Type: $this->ATOM_CONTENT_TYPE");
1388                 if(isset($ctloc))
1389                         header('Content-Location: ' . $ctloc);
1390                 header('Location: ' . $edit);
1391                 status_header('201');
1392                 echo $content;
1393                 exit;
1394         }
1395
1396         /**
1397          * Set 'Auth Required' (401) headers.
1398          *
1399          * @since 2.2.0
1400          *
1401          * @param string $msg Status header content and HTML content.
1402          */
1403         function auth_required($msg) {
1404                 log_app('Status','401: Auth Required');
1405                 nocache_headers();
1406                 header('WWW-Authenticate: Basic realm="WordPress Atom Protocol"');
1407                 header("HTTP/1.1 401 $msg");
1408                 header('Status: 401 ' . $msg);
1409                 header('Content-Type: text/html');
1410                 $content = <<<EOD
1411 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
1412 <html>
1413   <head>
1414     <title>401 Unauthorized</title>
1415   </head>
1416 <body>
1417     <h1>401 Unauthorized</h1>
1418     <p>$msg</p>
1419   </body>
1420 </html>
1421
1422 EOD;
1423                 echo $content;
1424                 exit;
1425         }
1426
1427         /**
1428          * Display XML and set headers with content type.
1429          *
1430          * @since 2.2.0
1431          *
1432          * @param string $xml Display feed content.
1433          * @param string $ctype Optional, default is 'atom+xml'. Feed content type.
1434          */
1435         function output($xml, $ctype = 'application/atom+xml') {
1436                         status_header('200');
1437                         $xml = '<?xml version="1.0" encoding="' . strtolower(get_option('blog_charset')) . '"?>'."\n".$xml;
1438                         header('Connection: close');
1439                         header('Content-Length: '. strlen($xml));
1440                         header('Content-Type: ' . $ctype);
1441                         header('Content-Disposition: attachment; filename=atom.xml');
1442                         header('Date: '. date('r'));
1443                         if($this->do_output)
1444                                 echo $xml;
1445                         log_app('function', "output:\n$xml");
1446                         exit;
1447         }
1448
1449         /**
1450          * Sanitize content for database usage.
1451          *
1452          * @since 2.2.0
1453          *
1454          * @param array $array Sanitize array and multi-dimension array.
1455          */
1456         function escape(&$array) {
1457                 global $wpdb;
1458
1459                 foreach ($array as $k => $v) {
1460                                 if (is_array($v)) {
1461                                                 $this->escape($array[$k]);
1462                                 } else if (is_object($v)) {
1463                                                 //skip
1464                                 } else {
1465                                                 $array[$k] = $wpdb->escape($v);
1466                                 }
1467                 }
1468         }
1469
1470         /**
1471          * Access credential through various methods and perform login.
1472          *
1473          * @since 2.2.0
1474          *
1475          * @return bool
1476          */
1477         function authenticate() {
1478                 log_app("authenticate()",print_r($_ENV, true));
1479
1480                 // if using mod_rewrite/ENV hack
1481                 // http://www.besthostratings.com/articles/http-auth-php-cgi.html
1482                 if(isset($_SERVER['HTTP_AUTHORIZATION'])) {
1483                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1484                                 explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
1485                 } else if (isset($_SERVER['REDIRECT_REMOTE_USER'])) {
1486                         // Workaround for setups that do not forward HTTP_AUTHORIZATION
1487                         // See http://trac.wordpress.org/ticket/7361
1488                         list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
1489                                 explode(':', base64_decode(substr($_SERVER['REDIRECT_REMOTE_USER'], 6)));
1490                 }
1491
1492                 // If Basic Auth is working...
1493                 if(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
1494                         log_app("Basic Auth",$_SERVER['PHP_AUTH_USER']);
1495                 }
1496
1497                 $user = wp_authenticate($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
1498                 if ( $user && !is_wp_error($user) ) {
1499                         wp_set_current_user($user->ID);
1500                         log_app("authenticate()", $user->user_login);
1501                         return true;
1502                 }
1503
1504                 return false;
1505         }
1506
1507         /**
1508          * Retrieve accepted content types.
1509          *
1510          * @since 2.2.0
1511          *
1512          * @param array $types Optional. Content Types.
1513          * @return string
1514          */
1515         function get_accepted_content_type($types = null) {
1516
1517                 if(!isset($types)) {
1518                         $types = $this->media_content_types;
1519                 }
1520
1521                 if(!isset($_SERVER['CONTENT_LENGTH']) || !isset($_SERVER['CONTENT_TYPE'])) {
1522                         $this->length_required();
1523                 }
1524
1525                 $type = $_SERVER['CONTENT_TYPE'];
1526                 list($type,$subtype) = explode('/',$type);
1527                 list($subtype) = explode(";",$subtype); // strip MIME parameters
1528                 log_app("get_accepted_content_type", "type=$type, subtype=$subtype");
1529
1530                 foreach($types as $t) {
1531                         list($acceptedType,$acceptedSubtype) = explode('/',$t);
1532                         if($acceptedType == '*' || $acceptedType == $type) {
1533                                 if($acceptedSubtype == '*' || $acceptedSubtype == $subtype)
1534                                         return $type . "/" . $subtype;
1535                         }
1536                 }
1537
1538                 $this->invalid_media();
1539         }
1540
1541         /**
1542          * Process conditionals for posts.
1543          *
1544          * @since 2.2.0
1545          */
1546         function process_conditionals() {
1547
1548                 if(empty($this->params)) return;
1549                 if($_SERVER['REQUEST_METHOD'] == 'DELETE') return;
1550
1551                 switch($this->params[0]) {
1552                         case $this->ENTRY_PATH:
1553                                 global $post;
1554                                 $post = wp_get_single_post($this->params[1]);
1555                                 $wp_last_modified = get_post_modified_time('D, d M Y H:i:s', true);
1556                                 $post = NULL;
1557                                 break;
1558                         case $this->ENTRIES_PATH:
1559                                 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
1560                                 break;
1561                         default:
1562                                 return;
1563                 }
1564                 $wp_etag = md5($wp_last_modified);
1565                 @header("Last-Modified: $wp_last_modified");
1566                 @header("ETag: $wp_etag");
1567
1568                 // Support for Conditional GET
1569                 if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
1570                         $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
1571                 else
1572                         $client_etag = false;
1573
1574                 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
1575                 // If string is empty, return 0. If not, attempt to parse into a timestamp
1576                 $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
1577
1578                 // Make a timestamp for our most recent modification...
1579                 $wp_modified_timestamp = strtotime($wp_last_modified);
1580
1581                 if ( ($client_last_modified && $client_etag) ?
1582                 (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
1583                 (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
1584                         status_header( 304 );
1585                         exit;
1586                 }
1587         }
1588
1589         /**
1590          * Convert RFC3339 time string to timestamp.
1591          *
1592          * @since 2.3.0
1593          *
1594          * @param string $str String to time.
1595          * @return bool|int false if format is incorrect.
1596          */
1597         function rfc3339_str2time($str) {
1598
1599                 $match = false;
1600                 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, $match))
1601                         return false;
1602
1603                 if($match[3] == 'Z')
1604                         $match[3] == '+0000';
1605
1606                 return strtotime($match[1] . " " . $match[2] . " " . $match[3]);
1607         }
1608
1609         /**
1610          * Retrieve published time to display in XML.
1611          *
1612          * @since 2.3.0
1613          *
1614          * @param string $published Time string.
1615          * @return string
1616          */
1617         function get_publish_time($published) {
1618
1619                 $pubtime = $this->rfc3339_str2time($published);
1620
1621                 if(!$pubtime) {
1622                         return array(current_time('mysql'),current_time('mysql',1));
1623                 } else {
1624                         return array(date("Y-m-d H:i:s", $pubtime), gmdate("Y-m-d H:i:s", $pubtime));
1625                 }
1626         }
1627
1628 }
1629
1630 /**
1631  * AtomServer
1632  * @var AtomServer
1633  * @global object $server
1634  */
1635 $server = new AtomServer();
1636 $server->handle_request();
1637
1638 ?>