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FeedWordPress / 2011.0721
FeedWordPress v2011.0721
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feedwordpress / syndicatedpost.class.php

syndicatedpost.class.php in FeedWordPress 2011.0721, at syndicatedpost.class.php

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1 <?php
2 require_once(dirname(__FILE__).'/feedtime.class.php');
3
4 /**
5 * class SyndicatedPost: FeedWordPress uses to manage the conversion of
6 * incoming items from the feed parser into posts for the WordPress
7 * database. It contains several internal management methods primarily
8 * of interest to someone working on the FeedWordPress source, as well
9 * as some utility methods for extracting useful data from many
10 * different feed formats, which may be useful to FeedWordPress users
11 * who make use of feed data in PHP add-ons and filters.
12 *
13 * @version 2011.0601
14 */
15 class SyndicatedPost {
16 var $item = null; // MagpieRSS representation
17 var $entry = null; // SimplePie_Item representation
18
19 var $link = null;
20 var $feed = null;
21 var $feedmeta = null;
22
23 var $xmlns = array ();
24
25 var $post = array ();
26
27 var $named = array ();
28 var $preset_terms = array ();
29 var $feed_terms = array ();
30
31 var $_freshness = null;
32 var $_wp_id = null;
33
34 /**
35 * SyndicatedPost constructor: Given a feed item and the source from
36 * which it was taken, prepare a post that can be inserted into the
37 * WordPress database on request, or updated in place if it has already
38 * been syndicated.
39 *
40 * @param array $item The item syndicated from the feed.
41 * @param SyndicatedLink $source The feed it was syndicated from.
42 */
43 function SyndicatedPost ($item, &$source) {
44 global $wpdb;
45
46 if (is_array($item)
47 and isset($item['simplepie'])
48 and isset($item['magpie'])) :
49 $this->entry = $item['simplepie'];
50 $this->item = $item['magpie'];
51 $item = $item['magpie'];
52 elseif (is_a($item, 'SimplePie_Item')) :
53 $this->entry = $item;
54
55 // convert to Magpie for compat purposes
56 $mp = new MagpieFromSimplePie($source->simplepie, $this->entry);
57 $this->item = $mp->get_item();
58
59 // done with conversion object
60 $mp = NULL; unset($mp);
61 else :
62 $this->item = $item;
63 endif;
64
65 $this->link =& $source;
66 $this->feed = $source->magpie;
67 $this->feedmeta = $source->settings;
68
69 FeedWordPress::diagnostic('feed_items', 'Considering item ['.$this->guid().'] "'.$this->entry->get_title().'"');
70
71 # Dealing with namespaces can get so fucking fucked.
72 $this->xmlns['forward'] = $source->magpie->_XMLNS_FAMILIAR;
73 $this->xmlns['reverse'] = array();
74 foreach ($this->xmlns['forward'] as $url => $ns) :
75 if (!isset($this->xmlns['reverse'][$ns])) :
76 $this->xmlns['reverse'][$ns] = array();
77 endif;
78 $this->xmlns['reverse'][$ns][] = $url;
79 endforeach;
80
81 // Fucking SimplePie.
82 $this->xmlns['reverse']['rss'][] = '';
83
84 # These globals were originally an ugly kludge around a bug in
85 # apply_filters from WordPress 1.5. The bug was fixed in 1.5.1,
86 # and I sure hope at this point that nobody writing filters for
87 # FeedWordPress is still relying on them.
88 #
89 # Anyway, I hereby declare them DEPRECATED as of 8 February
90 # 2010. I'll probably remove the globals within 1-2 releases in
91 # the interests of code hygiene and memory usage. If you
92 # currently use them in your filters, I advise you switch off to
93 # accessing the public members SyndicatedPost::feed and
94 # SyndicatedPost::feedmeta.
95
96 global $fwp_channel, $fwp_feedmeta;
97 $fwp_channel = $this->feed; $fwp_feedmeta = $this->feedmeta;
98
99 // Trigger global syndicated_item filter.
100 $changed = apply_filters('syndicated_item', $this->item, $this);
101 $this->item = $changed;
102
103 // Allow for feed-specific syndicated_item filters.
104 $changed = apply_filters(
105 "syndicated_item_".$source->uri(),
106 $this->item,
107 $this
108 );
109 $this->item = $changed;
110
111 # Filters can halt further processing by returning NULL
112 if (is_null($this->item)) :
113 $this->post = NULL;
114 else :
115 # Note that nothing is run through $wpdb->escape() here.
116 # That's deliberate. The escaping is done at the point
117 # of insertion, not here, to avoid double-escaping and
118 # to avoid screwing with syndicated_post filters
119
120 $this->post['post_title'] = apply_filters(
121 'syndicated_item_title',
122 $this->entry->get_title(), $this
123 );
124
125 $this->named['author'] = apply_filters(
126 'syndicated_item_author',
127 $this->author(), $this
128 );
129 // This just gives us an alphanumeric name for the author.
130 // We look up (or create) the numeric ID for the author
131 // in SyndicatedPost::add().
132
133 $this->post['post_content'] = apply_filters(
134 'syndicated_item_content',
135 $this->content(), $this
136 );
137
138 $excerpt = apply_filters('syndicated_item_excerpt', $this->excerpt(), $this);
139 if (!empty($excerpt)):
140 $this->post['post_excerpt'] = $excerpt;
141 endif;
142
143 // Dealing with timestamps in WordPress is so fucking fucked.
144 $offset = (int) get_option('gmt_offset') * 60 * 60;
145 $post_date_gmt = $this->published(array('default' => -1));
146 $post_modified_gmt = $this->updated(array('default' => -1));
147
148 $this->post['post_date_gmt'] = gmdate('Y-m-d H:i:s', $post_date_gmt);
149 $this->post['post_date'] = gmdate('Y-m-d H:i:s', $post_date_gmt + $offset);
150 $this->post['post_modified_gmt'] = gmdate('Y-m-d H:i:s', $post_modified_gmt);
151 $this->post['post_modified'] = gmdate('Y-m-d H:i:s', $post_modified_gmt + $offset);
152
153 // Use feed-level preferences or the global default.
154 $this->post['post_status'] = $this->link->syndicated_status('post', 'publish');
155 $this->post['comment_status'] = $this->link->syndicated_status('comment', 'closed');
156 $this->post['ping_status'] = $this->link->syndicated_status('ping', 'closed');
157
158 // Unique ID (hopefully a unique tag: URI); failing that, the permalink
159 $this->post['guid'] = apply_filters('syndicated_item_guid', $this->guid(), $this);
160
161 // User-supplied custom settings to apply to each post. Do first so that FWP-generated custom settings will overwrite if necessary; thus preventing any munging
162 $default_custom_settings = get_option('feedwordpress_custom_settings');
163 if ($default_custom_settings and !is_array($default_custom_settings)) :
164 $default_custom_settings = unserialize($default_custom_settings);
165 endif;
166 if (!is_array($default_custom_settings)) :
167 $default_custom_settings = array();
168 endif;
169
170 $custom_settings = (isset($this->link->settings['postmeta']) ? $this->link->settings['postmeta'] : null);
171 if ($custom_settings and !is_array($custom_settings)) :
172 $custom_settings = unserialize($custom_settings);
173 endif;
174 if (!is_array($custom_settings)) :
175 $custom_settings = array();
176 endif;
177
178 $postMetaIn = array_merge($default_custom_settings, $custom_settings);
179 $postMetaOut = array();
180
181 // Big ugly fuckin loop to do any element substitutions
182 // that we may need.
183 foreach ($postMetaIn as $key => $values) :
184 if (is_string($values)) : $values = array($values); endif;
185
186 $postMetaOut[$key] = array();
187 foreach ($values as $value) :
188 if (preg_match('/\$\( ([^)]+) \)/x', $value, $ref)) :
189 $elements = $this->query($ref[1]);
190 foreach ($elements as $element) :
191 $postMetaOut[$key][] = str_replace(
192 $ref[0],
193 $element,
194 $value
195 );
196 endforeach;
197 else :
198 $postMetaOut[$key][] = $value;
199 endif;
200 endforeach;
201 endforeach;
202
203 foreach ($postMetaOut as $key => $values) :
204 $this->post['meta'][$key] = array();
205 foreach ($values as $value) :
206 $this->post['meta'][$key][] = apply_filters("syndicated_post_meta_{$key}", $value, $this);
207 endforeach;
208 endforeach;
209
210 // RSS 2.0 / Atom 1.0 enclosure support
211 $enclosures = $this->entry->get_enclosures();
212 if (is_array($enclosures)) : foreach ($enclosures as $enclosure) :
213 $this->post['meta']['enclosure'][] =
214 apply_filters('syndicated_item_enclosure_url', $enclosure->get_link(), $this)."\n".
215 apply_filters('syndicated_item_enclosure_length', $enclosure->get_length(), $this)."\n".
216 apply_filters('syndicated_item_enclosure_type', $enclosure->get_type(), $this);
217 endforeach; endif;
218
219 // In case you want to point back to the blog this was
220 // syndicated from.
221
222 $sourcemeta['syndication_source'] = apply_filters(
223 'syndicated_item_source_title',
224 $this->link->name(),
225 $this
226 );
227 $sourcemeta['syndication_source_uri'] = apply_filters(
228 'syndicated_item_source_link',
229 $this->link->homepage(),
230 $this
231 );
232 $sourcemeta['syndication_source_id'] = apply_filters(
233 'syndicated_item_source_id',
234 $this->link->guid(),
235 $this
236 );
237
238 // Make use of atom:source data, if present in an aggregated feed
239 $entry_source = $this->source();
240 if (!is_null($entry_source)) :
241 foreach ($entry_source as $what => $value) :
242 if (!is_null($value)) :
243 if ($what=='title') : $key = 'syndication_source';
244 elseif ($what=='feed') : $key = 'syndication_feed';
245 else : $key = "syndication_source_${what}";
246 endif;
247
248 $sourcemeta["${key}_original"] = apply_filters(
249 'syndicated_item_original_source_'.$what,
250 $value,
251 $this
252 );
253 endif;
254 endforeach;
255 endif;
256
257 foreach ($sourcemeta as $meta_key => $value) :
258 if (!is_null($value)) :
259 $this->post['meta'][$meta_key] = $value;
260 endif;
261 endforeach;
262
263 // Store information on human-readable and machine-readable comment URIs
264
265 // Human-readable comment URI
266 $commentLink = apply_filters('syndicated_item_comments', $this->comment_link(), $this);
267 if (!is_null($commentLink)) : $this->post['meta']['rss:comments'] = $commentLink; endif;
268
269 // Machine-readable content feed URI
270 $commentFeed = apply_filters('syndicated_item_commentrss', $this->comment_feed(), $this);
271 if (!is_null($commentFeed)) : $this->post['meta']['wfw:commentRSS'] = $commentFeed; endif;
272 // Yeah, yeah, now I know that it's supposed to be
273 // wfw:commentRss. Oh well. Path dependence, sucka.
274
275 // Store information to identify the feed that this came from
276 if (isset($this->feedmeta['link/uri'])) :
277 $this->post['meta']['syndication_feed'] = $this->feedmeta['link/uri'];
278 endif;
279 if (isset($this->feedmeta['link/id'])) :
280 $this->post['meta']['syndication_feed_id'] = $this->feedmeta['link/id'];
281 endif;
282
283 if (isset($this->item['source_link_self'])) :
284 $this->post['meta']['syndication_feed_original'] = $this->item['source_link_self'];
285 endif;
286
287 // In case you want to know the external permalink...
288 $this->post['meta']['syndication_permalink'] = apply_filters('syndicated_item_link', $this->permalink());
289
290 // Store a hash of the post content for checking whether something needs to be updated
291 $this->post['meta']['syndication_item_hash'] = $this->update_hash();
292
293 // Categories: start with default categories, if any.
294 $cats = array();
295 if ('no' != $this->link->setting('add/category', NULL, 'yes')) :
296 $fc = get_option("feedwordpress_syndication_cats");
297 if ($fc) :
298 $cats = array_merge($cats, explode("\n", $fc));
299 endif;
300 endif;
301
302 $fc = $this->link->setting('cats', NULL, array());
303 if (is_array($fc)) :
304 $cats = array_merge($cats, $fc);
305 endif;
306 $this->preset_terms['category'] = $cats;
307
308 // Now add categories from the post, if we have 'em
309 $cats = array();
310 $post_cats = $this->entry->get_categories();
311 if (is_array($post_cats)) : foreach ($post_cats as $cat) :
312 $cat_name = $cat->get_term();
313 if (!$cat_name) : $cat_name = $cat->get_label(); endif;
314
315 if ($this->link->setting('cat_split', NULL, NULL)) :
316 $pcre = "\007".$this->feedmeta['cat_split']."\007";
317 $cats = array_merge(
318 $cats,
319 preg_split(
320 $pcre,
321 $cat_name,
322 -1 /*=no limit*/,
323 PREG_SPLIT_NO_EMPTY
324 )
325 );
326 else :
327 $cats[] = $cat_name;
328 endif;
329 endforeach; endif;
330
331 $this->feed_terms['category'] = apply_filters('syndicated_item_categories', $cats, $this);
332
333 // Tags: start with default tags, if any
334 $tags = array();
335 if ('no' != $this->link->setting('add/post_tag', NULL, 'yes')) :
336 $ft = get_option("feedwordpress_syndication_tags", NULL);
337 $tags = (is_null($ft) ? array() : explode(FEEDWORDPRESS_CAT_SEPARATOR, $ft));
338 endif;
339
340 $ft = $this->link->setting('tags', NULL, array());
341 if (is_array($ft)) :
342 $tags = array_merge($tags, $ft);
343 endif;
344 $this->preset_terms['post_tag'] = $tags;
345
346 // Scan post for /a[@rel='tag'] and use as tags if present
347 $tags = $this->inline_tags();
348 $this->feed_terms['post_tag'] = apply_filters('syndicated_item_tags', $tags, $this);
349
350 $taxonomies = $this->link->taxonomies();
351 $feedTerms = $this->link->setting('terms', NULL, array());
352 $globalTerms = get_option('feedwordpress_syndication_terms', array());
353
354 $specials = array('category' => 'cats', 'post_tag' => 'tags');
355 foreach ($taxonomies as $tax) :
356 if (!isset($specials[$tax])) :
357 $terms = array();
358
359 // See if we should get the globals
360 if ('no' != $this->link->setting("add/$tax", NULL, 'yes')) :
361 if (isset($globalTerms[$tax])) :
362 $terms = $globalTerms[$tax];
363 endif;
364 endif;
365
366 // Now merge in the locals
367 if (isset($feedTerms[$tax])) :
368 $terms = array_merge($terms, $feedTerms[$tax]);
369 endif;
370
371 // That's all, folks.
372 $this->preset_terms[$tax] = $terms;
373 endif;
374 endforeach;
375
376 $this->post['post_type'] = apply_filters('syndicated_post_type', $this->link->setting('syndicated post type', 'syndicated_post_type', 'post'), $this);
377 endif;
378 } /* SyndicatedPost::SyndicatedPost() */
379
380 #####################################
381 #### EXTRACT DATA FROM FEED ITEM ####
382 #####################################
383
384 /**
385 * SyndicatedPost::query uses an XPath-like syntax to query arbitrary
386 * elements within the syndicated item.
387 *
388 * @param string $path
389 * @returns array of string values representing contents of matching
390 * elements or attributes
391 */
392 function query ($path) {
393 $urlHash = array();
394
395 // Allow {url} notation for namespaces. URLs will contain : and /, so...
396 preg_match_all('/{([^}]+)}/', $path, $match, PREG_SET_ORDER);
397 foreach ($match as $ref) :
398 $urlHash[md5($ref[1])] = $ref[1];
399 endforeach;
400
401 foreach ($urlHash as $hash => $url) :
402 $path = str_replace('{'.$url.'}', '{#'.$hash.'}', $path);
403 endforeach;
404
405 $path = explode('/', $path);
406 foreach ($path as $index => $node) :
407 if (preg_match('/{#([^}]+)}/', $node, $ref)) :
408 if (isset($urlHash[$ref[1]])) :
409 $path[$index] = str_replace(
410 '{#'.$ref[1].'}',
411 '{'.$urlHash[$ref[1]].'}',
412 $node
413 );
414 endif;
415 endif;
416 endforeach;
417
418 // Start out with a get_item_tags query.
419 $node = '';
420 while (strlen($node)==0 and !is_null($node)) :
421 $node = array_shift($path);
422 endwhile;
423
424 switch ($node) :
425 case 'feed' :
426 case 'channel' :
427 $node = array_shift($path);
428 $data = $this->get_feed_root_element();
429 $data = array_merge($data, $this->get_feed_channel_elements());
430 break;
431 case 'item' :
432 $node = array_shift($path);
433 default :
434 $data = array($this->entry->data);
435 $method = NULL;
436 endswitch;
437
438 while (!is_null($node)) :
439 if (strlen($node) > 0) :
440 $matches = array();
441
442 list($axis, $element) = $this->xpath_name_and_axis($node);
443
444 foreach ($data as $datum) :
445 if (!is_string($datum) and isset($datum[$axis])) :
446 foreach ($datum[$axis] as $ns => $elements) :
447 if (isset($elements[$element])) :
448 // Potential match.
449 // Check namespace.
450 if (is_string($elements[$element])) : // Attribute
451 $addenda = array($elements[$element]);
452 $contexts = array($datum);
453 else : // Element
454 $addenda = $elements[$element];
455 $contexts = $elements[$element];
456 endif;
457
458 foreach ($addenda as $index => $addendum) :
459 $context = $contexts[$index];
460
461 $namespaces = $this->xpath_possible_namespaces($node, $context);
462 if (in_array($ns, $namespaces)) :
463 $matches[] = $addendum;
464 endif;
465 endforeach;
466 endif;
467 endforeach;
468 endif;
469 endforeach;
470
471 $data = $matches;
472 endif;
473 $node = array_shift($path);
474 endwhile;
475
476 $matches = array();
477 foreach ($data as $datum) :
478 if (is_string($datum)) :
479 $matches[] = $datum;
480 elseif (isset($datum['data'])) :
481 $matches[] = $datum['data'];
482 endif;
483 endforeach;
484 return $matches;
485 } /* SyndicatedPost::query() */
486
487 function get_feed_root_element () {
488 $matches = array();
489 foreach ($this->link->simplepie->data['child'] as $ns => $root) :
490 foreach ($root as $element => $data) :
491 $matches = array_merge($matches, $data);
492 endforeach;
493 endforeach;
494 return $matches;
495 } /* SyndicatedPost::get_feed_root_element() */
496
497 function get_feed_channel_elements () {
498 $rss = array(
499 SIMPLEPIE_NAMESPACE_RSS_090,
500 SIMPLEPIE_NAMESPACE_RSS_10,
501 'http://backend.userland.com/RSS2',
502 SIMPLEPIE_NAMESPACE_RSS_20,
503 );
504
505 $matches = array();
506 foreach ($rss as $ns) :
507 $data = $this->link->simplepie->get_feed_tags($ns, 'channel');
508 if (!is_null($data)) :
509 $matches = array_merge($matches, $data);
510 endif;
511 endforeach;
512 return $matches;
513 } /* SyndicatedPost::get_feed_channel_elements() */
514
515 function xpath_default_namespace () {
516 // Get the default namespace.
517 $type = $this->link->simplepie->get_type();
518 if ($type & SIMPLEPIE_TYPE_ATOM_10) :
519 $defaultNS = SIMPLEPIE_NAMESPACE_ATOM_10;
520 elseif ($type & SIMPLEPIE_TYPE_ATOM_03) :
521 $defaultNS = SIMPLEPIE_NAMESPACE_ATOM_03;
522 elseif ($type & SIMPLEPIE_TYPE_RSS_090) :
523 $defaultNS = SIMPLEPIE_NAMESPACE_RSS_090;
524 elseif ($type & SIMPLEPIE_TYPE_RSS_10) :
525 $defaultNS = SIMPLEPIE_NAMESPACE_RSS_10;
526 elseif ($type & SIMPLEPIE_TYPE_RSS_20) :
527 $defaultNS = SIMPLEPIE_NAMESPACE_RSS_20;
528 else :
529 $defaultNS = SIMPLEPIE_NAMESPACE_RSS_20;
530 endif;
531 return $defaultNS;
532 } /* SyndicatedPost::xpath_default_namespace() */
533
534 function xpath_name_and_axis ($node) {
535 $ns = NULL; $element = NULL;
536
537 if (substr($node, 0, 1)=='@') :
538 $axis = 'attribs'; $node = substr($node, 1);
539 else :
540 $axis = 'child';
541 endif;
542
543 if (preg_match('/^{([^}]*)}(.*)$/', $node, $ref)) :
544 $element = $ref[2];
545 elseif (strpos($node, ':') !== FALSE) :
546 list($xmlns, $element) = explode(':', $node, 2);
547 else :
548 $element = $node;
549 endif;
550 return array($axis, $element);
551 } /* SyndicatedPost::xpath_local_name () */
552
553 function xpath_possible_namespaces ($node, $datum = array()) {
554 $ns = NULL; $element = NULL;
555
556 if (substr($node, 0, 1)=='@') :
557 $attr = '@'; $node = substr($node, 1);
558 else :
559 $attr = '';
560 endif;
561
562 if (preg_match('/^{([^}]*)}(.*)$/', $node, $ref)) :
563 $ns = array($ref[1]);
564 elseif (strpos($node, ':') !== FALSE) :
565 list($xmlns, $element) = explode(':', $node, 2);
566
567 if (isset($this->xmlns['reverse'][$xmlns])) :
568 $ns = $this->xmlns['reverse'][$xmlns];
569 else :
570 $ns = array($xmlns);
571 endif;
572
573 // Fucking SimplePie. For attributes in default xmlns.
574 $defaultNS = $this->xpath_default_namespace();
575 if (isset($this->xmlns['forward'][$defaultNS])
576 and ($xmlns==$this->xmlns['forward'][$defaultNS])) :
577 $ns[] = '';
578 endif;
579
580 if (isset($datum['xmlns'])) :
581 if (isset($datum['xmlns'][$xmlns])) :
582 $ns[] = $datum['xmlns'][$xmlns];
583 endif;
584 endif;
585 else :
586 // Often in SimplePie, the default namespace gets stored
587 // as an empty string rather than a URL.
588 $ns = array($this->xpath_default_namespace(), '');
589 endif;
590 return array_unique($ns);
591 } /* SyndicatedPost::xpath_possible_namespaces() */
592
593 function content () {
594 $content = NULL;
595 if (isset($this->item['atom_content'])) :
596 $content = $this->item['atom_content'];
597 elseif (isset($this->item['xhtml']['body'])) :
598 $content = $this->item['xhtml']['body'];
599 elseif (isset($this->item['xhtml']['div'])) :
600 $content = $this->item['xhtml']['div'];
601 elseif (isset($this->item['content']['encoded']) and $this->item['content']['encoded']):
602 $content = $this->item['content']['encoded'];
603 elseif (isset($this->item['description'])) :
604 $content = $this->item['description'];
605 endif;
606 return $content;
607 } /* SyndicatedPost::content() */
608
609 function excerpt () {
610 # Identify and sanitize excerpt: atom:summary, or rss:description
611 $excerpt = $this->entry->get_description();
612
613 # Many RSS feeds use rss:description, inadvisably, to
614 # carry the entire post (typically with escaped HTML).
615 # If that's what happened, we don't want the full
616 # content for the excerpt.
617 $content = $this->content();
618
619 // Ignore whitespace, case, and tag cruft.
620 $theExcerpt = preg_replace('/\s+/', '', strtolower(strip_tags($excerpt)));
621 $theContent = preg_replace('/\s+/', '', strtolower(strip_tags($content)));
622
623 if ( empty($excerpt) or $theExcerpt == $theContent ) :
624 # If content is available, generate an excerpt.
625 if ( strlen(trim($content)) > 0 ) :
626 $excerpt = strip_tags($content);
627 if (strlen($excerpt) > 255) :
628 $excerpt = substr($excerpt,0,252).'...';
629 endif;
630 endif;
631 endif;
632 return $excerpt;
633 } /* SyndicatedPost::excerpt() */
634
635 function permalink () {
636 // Handles explicit <link> elements and also RSS 2.0 cases with
637 // <guid isPermaLink="true">, etc. Hooray!
638 $permalink = $this->entry->get_link();
639 return $permalink;
640 }
641
642 function created ($params = array()) {
643 $unfiltered = false; $default = NULL;
644 extract($params);
645
646 $date = '';
647 if (isset($this->item['dc']['created'])) :
648 $date = $this->item['dc']['created'];
649 elseif (isset($this->item['dcterms']['created'])) :
650 $date = $this->item['dcterms']['created'];
651 elseif (isset($this->item['created'])): // Atom 0.3
652 $date = $this->item['created'];
653 endif;
654
655 $time = new FeedTime($date);
656 $ts = $time->timestamp();
657 if (!$unfiltered) :
658 apply_filters('syndicated_item_created', $ts, $this);
659 endif;
660 return $ts;
661 } /* SyndicatedPost::created() */
662
663 function published ($params = array(), $default = NULL) {
664 $fallback = true; $unfiltered = false;
665 if (!is_array($params)) : // Old style
666 $fallback = $params;
667 else : // New style
668 extract($params);
669 endif;
670
671 $date = '';
672 $ts = null;
673
674 # RSS is a fucking mess. Figure out whether we have a date in
675 # <dc:date>, <issued>, <pubDate>, etc., and get it into Unix
676 # epoch format for reformatting. If we can't find anything,
677 # we'll use the last-updated time.
678 if (isset($this->item['dc']['date'])): // Dublin Core
679 $date = $this->item['dc']['date'];
680 elseif (isset($this->item['dcterms']['issued'])) : // Dublin Core extensions
681 $date = $this->item['dcterms']['issued'];
682 elseif (isset($this->item['published'])) : // Atom 1.0
683 $date = $this->item['published'];
684 elseif (isset($this->item['issued'])): // Atom 0.3
685 $date = $this->item['issued'];
686 elseif (isset($this->item['pubdate'])): // RSS 2.0
687 $date = $this->item['pubdate'];
688 endif;
689
690 if (strlen($date) > 0) :
691 $time = new FeedTime($date);
692 $ts = $time->timestamp();
693 elseif ($fallback) : // Fall back to <updated> / <modified> if present
694 $ts = $this->updated(/*fallback=*/ false, /*default=*/ $default);
695 endif;
696
697 # If everything failed, then default to the current time.
698 if (is_null($ts)) :
699 if (-1 == $default) :
700 $ts = time();
701 else :
702 $ts = $default;
703 endif;
704 endif;
705
706 if (!$unfiltered) :
707 $ts = apply_filters('syndicated_item_published', $ts, $this);
708 endif;
709 return $ts;
710 } /* SyndicatedPost::published() */
711
712 function updated ($params = array(), $default = -1) {
713 $fallback = true; $unfiltered = false;
714 if (!is_array($params)) : // Old style
715 $fallback = $params;
716 else : // New style
717 extract($params);
718 endif;
719
720 $date = '';
721 $ts = null;
722
723 # As far as I know, only dcterms and Atom have reliable ways to
724 # specify when something was *modified* last. If neither is
725 # available, then we'll try to get the time of publication.
726 if (isset($this->item['dc']['modified'])) : // Not really correct
727 $date = $this->item['dc']['modified'];
728 elseif (isset($this->item['dcterms']['modified'])) : // Dublin Core extensions
729 $date = $this->item['dcterms']['modified'];
730 elseif (isset($this->item['modified'])): // Atom 0.3
731 $date = $this->item['modified'];
732 elseif (isset($this->item['updated'])): // Atom 1.0
733 $date = $this->item['updated'];
734 endif;
735
736 if (strlen($date) > 0) :
737 $time = new FeedTime($date);
738 $ts = $time->timestamp();
739 elseif ($fallback) : // Fall back to issued / dc:date
740 $ts = $this->published(/*fallback=*/ false, /*default=*/ $default);
741 endif;
742
743 # If everything failed, then default to the current time.
744 if (is_null($ts)) :
745 if (-1 == $default) :
746 $ts = time();
747 else :
748 $ts = $default;
749 endif;
750 endif;
751
752 if (!$unfiltered) :
753 apply_filters('syndicated_item_updated', $ts, $this);
754 endif;
755 return $ts;
756 } /* SyndicatedPost::updated() */
757
758 var $_hashes = array();
759 function stored_hashes ($id = NULL) {
760 if (is_null($id)) :
761 $id = $this->wp_id();
762 endif;
763
764 if (!isset($this->_hashes[$id])) :
765 $this->_hashes[$id] = get_post_custom_values(
766 'syndication_item_hash', $id
767 );
768 if (is_null($this->_hashes[$id])) :
769 $this->_hashes[$id] = array();
770 endif;
771 endif;
772 return $this->_hashes[$id];
773 }
774
775 function update_hash () {
776 return md5(serialize($this->item));
777 } /* SyndicatedPost::update_hash() */
778
779 /*static*/ function normalize_guid_prefix () {
780 return trailingslashit(get_bloginfo('url')).'?guid=';
781 }
782
783 /*static*/ function normalize_guid ($guid) {
784 $guid = trim($guid);
785 if (preg_match('/^[0-9a-z]{32}$/i', $guid)) : // MD5
786 $guid = SyndicatedPost::normalize_guid_prefix().strtolower($guid);
787 elseif ((strlen(esc_url($guid)) == 0) or (esc_url($guid) != $guid)) :
788 $guid = SyndicatedPost::normalize_guid_prefix().md5($guid);
789 endif;
790 $guid = trim($guid);
791 return $guid;
792 } /* SyndicatedPost::normalize_guid() */
793
794 function guid () {
795 $guid = null;
796 if (isset($this->item['id'])): // Atom 0.3 / 1.0
797 $guid = $this->item['id'];
798 elseif (isset($this->item['atom']['id'])) : // Namespaced Atom
799 $guid = $this->item['atom']['id'];
800 elseif (isset($this->item['guid'])) : // RSS 2.0
801 $guid = $this->item['guid'];
802 elseif (isset($this->item['dc']['identifier'])) : // yeah, right
803 $guid = $this->item['dc']['identifier'];
804 endif;
805
806 // Un-set or too long to use as-is. Generate a tag: URI.
807 if (is_null($guid) or strlen($guid) > 250) :
808 // In case we need to check this again
809 $original_guid = $guid;
810
811 // The feed does not seem to have provided us with a
812 // usable unique identifier, so we'll have to cobble
813 // together a tag: URI that might work for us. The base
814 // of the URI will be the host name of the feed source ...
815 $bits = parse_url($this->link->uri());
816 $guid = 'tag:'.$bits['host'];
817
818 // Some ill-mannered feeds (for example, certain feeds
819 // coming from Google Calendar) have extraordinarily long
820 // guids -- so long that they exceed the 255 character
821 // width of the WordPress guid field. But if the string
822 // gets clipped by MySQL, uniqueness tests will fail
823 // forever after and the post will be endlessly
824 // reduplicated. So, instead, Guids Of A Certain Length
825 // are hashed down into a nice, manageable tag: URI.
826 if (!is_null($original_guid)) :
827 $guid .= ',2010-12-03:id.'.md5($original_guid);
828
829 // If we have a date of creation, then we can use that
830 // to uniquely identify the item. (On the other hand, if
831 // the feed producer was consicentious enough to
832 // generate dates of creation, she probably also was
833 // conscientious enough to generate unique identifiers.)
834 elseif (!is_null($this->created())) :
835 $guid .= '://post.'.date('YmdHis', $this->created());
836
837 // Otherwise, use both the URI of the item, *and* the
838 // item's title. We have to use both because titles are
839 // often not unique, and sometimes links aren't unique
840 // either (e.g. Bitch (S)HITLIST, Mozilla Dot Org news,
841 // some podcasts). But it's rare to have *both* the same
842 // title *and* the same link for two different items. So
843 // this is about the best we can do.
844 else :
845 $link = $this->permalink();
846 if (is_null($link)) : $link = $this->link->uri(); endif;
847 $guid .= '://'.md5($link.'/'.$this->item['title']);
848 endif;
849 endif;
850 return $guid;
851 } /* SyndicatedPost::guid() */
852
853 function author () {
854 $author = array ();
855
856 if (isset($this->item['author_name'])):
857 $author['name'] = $this->item['author_name'];
858 elseif (isset($this->item['dc']['creator'])):
859 $author['name'] = $this->item['dc']['creator'];
860 elseif (isset($this->item['dc']['contributor'])):
861 $author['name'] = $this->item['dc']['contributor'];
862 elseif (isset($this->feed->channel['dc']['creator'])) :
863 $author['name'] = $this->feed->channel['dc']['creator'];
864 elseif (isset($this->feed->channel['dc']['contributor'])) :
865 $author['name'] = $this->feed->channel['dc']['contributor'];
866 elseif (isset($this->feed->channel['author_name'])) :
867 $author['name'] = $this->feed->channel['author_name'];
868 elseif ($this->feed->is_rss() and isset($this->item['author'])) :
869 // The author element in RSS is allegedly an
870 // e-mail address, but lots of people don't use
871 // it that way. So let's make of it what we can.
872 $author = parse_email_with_realname($this->item['author']);
873
874 if (!isset($author['name'])) :
875 if (isset($author['email'])) :
876 $author['name'] = $author['email'];
877 else :
878 $author['name'] = $this->feed->channel['title'];
879 endif;
880 endif;
881 elseif ($this->link->name()) :
882 $author['name'] = $this->link->name();
883 else :
884 $url = parse_url($this->link->uri());
885 $author['name'] = $url['host'];
886 endif;
887
888 if (isset($this->item['author_email'])):
889 $author['email'] = $this->item['author_email'];
890 elseif (isset($this->feed->channel['author_email'])) :
891 $author['email'] = $this->feed->channel['author_email'];
892 endif;
893
894 if (isset($this->item['author_uri'])):
895 $author['uri'] = $this->item['author_uri'];
896 elseif (isset($this->item['author_url'])):
897 $author['uri'] = $this->item['author_url'];
898 elseif (isset($this->feed->channel['author_uri'])) :
899 $author['uri'] = $this->item['author_uri'];
900 elseif (isset($this->feed->channel['author_url'])) :
901 $author['uri'] = $this->item['author_url'];
902 elseif (isset($this->feed->channel['link'])) :
903 $author['uri'] = $this->feed->channel['link'];
904 endif;
905
906 return $author;
907 } /* SyndicatedPost::author() */
908
909 /**
910 * SyndicatedPost::inline_tags: Return a list of all the tags embedded
911 * in post content using the a[@rel="tag"] microformat.
912 *
913 * @since 2010.0630
914 * @return array of string values containing the name of each tag
915 */
916 function inline_tags () {
917 $tags = array();
918 $content = $this->content();
919 $pattern = FeedWordPressHTML::tagWithAttributeRegex('a', 'rel', 'tag');
920 preg_match_all($pattern, $content, $refs, PREG_SET_ORDER);
921 if (count($refs) > 0) :
922 foreach ($refs as $ref) :
923 $tag = FeedWordPressHTML::tagWithAttributeMatch($ref);
924 $tags[] = $tag['content'];
925 endforeach;
926 endif;
927 return $tags;
928 }
929
930 /**
931 * SyndicatedPost::isTaggedAs: Test whether a feed item is
932 * tagged / categorized with a given string. Case and leading and
933 * trailing whitespace are ignored.
934 *
935 * @param string $tag Tag to check for
936 *
937 * @return bool Whether or not at least one of the categories / tags on
938 * $this->item is set to $tag (modulo case and leading and trailing
939 * whitespace)
940 */
941 function isTaggedAs ($tag) {
942 $desiredTag = strtolower(trim($tag)); // Normalize case and whitespace
943
944 // Check to see if this is tagged with $tag
945 $currentCategory = 'category';
946 $currentCategoryNumber = 1;
947
948 // If we have the new MagpieRSS, the number of category elements
949 // on this item is stored under index "category#".
950 if (isset($this->item['category#'])) :
951 $numberOfCategories = (int) $this->item['category#'];
952
953 // We REALLY shouldn't have the old and busted MagpieRSS, but in
954 // case we do, it doesn't support multiple categories, but there
955 // might still be a single value under the "category" index.
956 elseif (isset($this->item['category'])) :
957 $numberOfCategories = 1;
958
959 // No standard category or tag elements on this feed item.
960 else :
961 $numberOfCategories = 0;
962
963 endif;
964
965 $isSoTagged = false; // Innocent until proven guilty
966
967 // Loop through category elements; if there are multiple
968 // elements, they are indexed as category, category#2,
969 // category#3, ... category#N
970 while ($currentCategoryNumber <= $numberOfCategories) :
971 if ($desiredTag == strtolower(trim($this->item[$currentCategory]))) :
972 $isSoTagged = true; // Got it!
973 break;
974 endif;
975
976 $currentCategoryNumber += 1;
977 $currentCategory = 'category#'.$currentCategoryNumber;
978 endwhile;
979
980 return $isSoTagged;
981 } /* SyndicatedPost::isTaggedAs() */
982
983 /**
984 * SyndicatedPost::enclosures: returns an array with any enclosures
985 * that may be attached to this syndicated item.
986 *
987 * @param string $type If you only want enclosures that match a certain
988 * MIME type or group of MIME types, you can limit the enclosures
989 * that will be returned to only those with a MIME type which
990 * matches this regular expression.
991 * @return array
992 */
993 function enclosures ($type = '/.*/') {
994 $enclosures = array();
995
996 if (isset($this->item['enclosure#'])) :
997 // Loop through enclosure, enclosure#2, enclosure#3, ....
998 for ($i = 1; $i <= $this->item['enclosure#']; $i++) :
999 $eid = (($i > 1) ? "#{$id}" : "");
1000
1001 // Does it match the type we want?
1002 if (preg_match($type, $this->item["enclosure{$eid}@type"])) :
1003 $enclosures[] = array(
1004 "url" => $this->item["enclosure{$eid}@url"],
1005 "type" => $this->item["enclosure{$eid}@type"],
1006 "length" => $this->item["enclosure{$eid}@length"],
1007 );
1008 endif;
1009 endfor;
1010 endif;
1011 return $enclosures;
1012 } /* SyndicatedPost::enclosures() */
1013
1014 function source ($what = NULL) {
1015 $ret = NULL;
1016 $source = $this->entry->get_source();
1017 if ($source) :
1018 $ret = array();
1019 $ret['title'] = $source->get_title();
1020 $ret['uri'] = $source->get_link();
1021 $ret['feed'] = $source->get_link(0, 'self');
1022
1023 if ($id_tags = $source->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'id')) :
1024 $ret['id'] = $id_tags[0]['data'];
1025 elseif ($id_tags = $source->get_source_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'id')) :
1026 $ret['id'] = $id_tags[0]['data'];
1027 elseif ($id_tags = $source->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'guid')) :
1028 $ret['id'] = $id_tags[0]['data'];
1029 elseif ($id_tags = $source->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'guid')) :
1030 $ret['id'] = $id_tags[0]['data'];
1031 elseif ($id_tags = $source->get_source_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'guid')) :
1032 $ret['id'] = $id_tags[0]['data'];
1033 endif;
1034 endif;
1035
1036 if (!is_null($what) and is_scalar($what)) :
1037 $ret = $ret[$what];
1038 endif;
1039 return $ret;
1040 }
1041
1042 function comment_link () {
1043 $url = null;
1044
1045 // RSS 2.0 has a standard <comments> element:
1046 // "<comments> is an optional sub-element of <item>. If present,
1047 // it is the url of the comments page for the item."
1048 // <http://cyber.law.harvard.edu/rss/rss.html#ltcommentsgtSubelementOfLtitemgt>
1049 if (isset($this->item['comments'])) :
1050 $url = $this->item['comments'];
1051 endif;
1052
1053 // The convention in Atom feeds is to use a standard <link>
1054 // element with @rel="replies" and @type="text/html".
1055 // Unfortunately, SimplePie_Item::get_links() allows us to filter
1056 // by the value of @rel, but not by the value of @type. *sigh*
1057
1058 // Try Atom 1.0 first
1059 $linkElements = $this->entry->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link');
1060
1061 // Fall back and try Atom 0.3
1062 if (is_null($linkElements)) : $linkElements = $this->entry->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'); endif;
1063
1064 // Now loop through the elements, screening by @rel and @type
1065 if (is_array($linkElements)) : foreach ($linkElements as $link) :
1066 $rel = (isset($link['attribs']['']['rel']) ? $link['attribs']['']['rel'] : 'alternate');
1067 $type = (isset($link['attribs']['']['type']) ? $link['attribs']['']['type'] : NULL);
1068 $href = (isset($link['attribs']['']['href']) ? $link['attribs']['']['href'] : NULL);
1069
1070 if (strtolower($rel)=='replies' and $type=='text/html' and !is_null($href)) :
1071 $url = $href;
1072 endif;
1073 endforeach; endif;
1074
1075 return $url;
1076 }
1077
1078 function comment_feed () {
1079 $feed = null;
1080
1081 // Well Formed Web comment feeds extension for RSS 2.0
1082 // <http://www.sellsbrothers.com/spout/default.aspx?content=archive.htm#exposingRssComments>
1083 //
1084 // N.B.: Correct capitalization is wfw:commentRss, but
1085 // wfw:commentRSS is common in the wild (partly due to a typo in
1086 // the original spec). In any case, our item array is normalized
1087 // to all lowercase anyways.
1088 if (isset($this->item['wfw']['commentrss'])) :
1089 $feed = $this->item['wfw']['commentrss'];
1090 endif;
1091
1092 // In Atom 1.0, the convention is to use a standard link element
1093 // with @rel="replies". Sometimes this is also used to pass a
1094 // link to the human-readable comments page, so we also need to
1095 // check link/@type for a feed MIME type.
1096 //
1097 // Which is why I'm not using the SimplePie_Item::get_links()
1098 // method here, incidentally: it doesn't allow you to filter by
1099 // @type. *sigh*
1100 if (isset($this->item['link_replies'])) :
1101 // There may be multiple <link rel="replies"> elements; feeds have a feed MIME type
1102 $N = isset($this->item['link_replies#']) ? $this->item['link_replies#'] : 1;
1103 for ($i = 1; $i <= $N; $i++) :
1104 $currentElement = 'link_replies'.(($i > 1) ? '#'.$i : '');
1105 if (isset($this->item[$currentElement.'@type'])
1106 and preg_match("\007application/(atom|rss|rdf)\+xml\007i", $this->item[$currentElement.'@type'])) :
1107 $feed = $this->item[$currentElement];
1108 endif;
1109 endfor;
1110 endif;
1111 return $feed;
1112 } /* SyndicatedPost::comment_feed() */
1113
1114 ##################################
1115 #### BUILT-IN CONTENT FILTERS ####
1116 ##################################
1117
1118 var $uri_attrs = array (
1119 array('a', 'href'),
1120 array('applet', 'codebase'),
1121 array('area', 'href'),
1122 array('blockquote', 'cite'),
1123 array('body', 'background'),
1124 array('del', 'cite'),
1125 array('form', 'action'),
1126 array('frame', 'longdesc'),
1127 array('frame', 'src'),
1128 array('iframe', 'longdesc'),
1129 array('iframe', 'src'),
1130 array('head', 'profile'),
1131 array('img', 'longdesc'),
1132 array('img', 'src'),
1133 array('img', 'usemap'),
1134 array('input', 'src'),
1135 array('input', 'usemap'),
1136 array('ins', 'cite'),
1137 array('link', 'href'),
1138 array('object', 'classid'),
1139 array('object', 'codebase'),
1140 array('object', 'data'),
1141 array('object', 'usemap'),
1142 array('q', 'cite'),
1143 array('script', 'src')
1144 ); /* var SyndicatedPost::$uri_attrs */
1145
1146 var $_base = null;
1147
1148 function resolve_single_relative_uri ($refs) {
1149 $tag = FeedWordPressHTML::attributeMatch($refs);
1150 $url = SimplePie_Misc::absolutize_url($tag['value'], $this->_base);
1151 return $tag['prefix'] . $url . $tag['suffix'];
1152 } /* function SyndicatedPost::resolve_single_relative_uri() */
1153
1154 function resolve_relative_uris ($content, $obj) {
1155 $set = $obj->link->setting('resolve relative', 'resolve_relative', 'yes');
1156 if ($set and $set != 'no') :
1157 // Fallback: if we don't have anything better, use the
1158 // item link from the feed
1159 $obj->_base = $obj->permalink(); // Reset the base for resolving relative URIs
1160
1161 // What we should do here, properly, is to use
1162 // SimplePie_Item::get_base() -- but that method is
1163 // currently broken. Or getting down and dirty in the
1164 // SimplePie representation of the content tags and
1165 // grabbing the xml_base member for the content element.
1166 // Maybe someday...
1167
1168 foreach ($obj->uri_attrs as $pair) :
1169 list($tag, $attr) = $pair;
1170 $pattern = FeedWordPressHTML::attributeRegex($tag, $attr);
1171 $content = preg_replace_callback (
1172 $pattern,
1173 array(&$obj, 'resolve_single_relative_uri'),
1174 $content
1175 );
1176 endforeach;
1177 endif;
1178
1179 return $content;
1180 } /* function SyndicatedPost::resolve_relative_uris () */
1181
1182 var $strip_attrs = array (
1183 array('[a-z]+', 'target'),
1184 // array('[a-z]+', 'style'),
1185 // array('[a-z]+', 'on[a-z]+'),
1186 );
1187
1188 function strip_attribute_from_tag ($refs) {
1189 $tag = FeedWordPressHTML::attributeMatch($refs);
1190 return $tag['before_attribute'].$tag['after_attribute'];
1191 }
1192
1193 function sanitize_content ($content, $obj) {
1194 # This kind of sucks. I intend to replace it with
1195 # lib_filter sometime soon.
1196 foreach ($obj->strip_attrs as $pair):
1197 list($tag,$attr) = $pair;
1198 $pattern = FeedWordPressHTML::attributeRegex($tag, $attr);
1199
1200 $content = preg_replace_callback (
1201 $pattern,
1202 array(&$obj, 'strip_attribute_from_tag'),
1203 $content
1204 );
1205 endforeach;
1206 return $content;
1207 } /* SyndicatedPost::sanitize() */
1208
1209 #####################
1210 #### POST STATUS ####
1211 #####################
1212
1213 /**
1214 * SyndicatedPost::filtered: check whether or not this post has been
1215 * screened out by a registered filter.
1216 *
1217 * @return bool TRUE iff post has been filtered out by a previous filter
1218 */
1219 function filtered () {
1220 return is_null($this->post);
1221 } /* SyndicatedPost::filtered() */
1222
1223 /**
1224 * SyndicatedPost::freshness: check whether post is a new post to be
1225 * inserted, a previously syndicated post that needs to be updated to
1226 * match the latest revision, or a previously syndicated post that is
1227 * still up-to-date.
1228 *
1229 * @return int A status code representing the freshness of the post
1230 * 0 = post already syndicated; no update needed
1231 * 1 = post already syndicated, but needs to be updated to latest
1232 * 2 = post has not yet been syndicated; needs to be created
1233 */
1234 function freshness () {
1235 global $wpdb;
1236
1237 if ($this->filtered()) : // This should never happen.
1238 FeedWordPress::critical_bug('SyndicatedPost', $this, __LINE__, __FILE__);
1239 endif;
1240
1241 if (is_null($this->_freshness)) : // Not yet checked and cached.
1242 $guid = $wpdb->escape($this->guid());
1243
1244 $q = new WP_Query(array(
1245 'fields' => '_synfresh', // id, guid, post_modified_gmt
1246 'ignore_sticky_posts' => true,
1247 'guid' => $this->guid(),
1248 ));
1249
1250 $old_post = NULL;
1251 if ($q->have_posts()) :
1252 while ($q->have_posts()) : $q->the_post();
1253 $old_post = $q->post;
1254 endwhile;
1255 endif;
1256
1257 if (is_null($old_post)) : // No post with this guid
1258 FeedWordPress::diagnostic('feed_items:freshness', 'Item ['.$this->guid().'] "'.$this->entry->get_title().'" is a NEW POST.');
1259 $this->_wp_id = NULL;
1260 $this->_freshness = 2; // New content
1261 else :
1262 preg_match('/([0-9]+)-([0-9]+)-([0-9]+) ([0-9]+):([0-9]+):([0-9]+)/', $old_post->post_modified_gmt, $backref);
1263
1264 $last_rev_ts = gmmktime($backref[4], $backref[5], $backref[6], $backref[2], $backref[3], $backref[1]);
1265 $updated_ts = $this->updated(/*fallback=*/ true, /*default=*/ NULL);
1266
1267 // Check timestamps...
1268 $updated = (
1269 !is_null($updated_ts)
1270 and ($updated_ts > $last_rev_ts)
1271 );
1272
1273
1274 if (!$updated) :
1275 // Or the hash...
1276 $hash = $this->update_hash();
1277 $seen = $this->stored_hashes($old_post->ID);
1278 if (count($seen) > 0) :
1279 $updated = !in_array($hash, $seen); // Not seen yet?
1280 else :
1281 $updated = true; // Can't find syndication meta-data
1282 endif;
1283 endif;
1284
1285 $frozen = false;
1286 if ($updated) : // Ignore if the post is frozen
1287 $frozen = ('yes' == $this->link->setting('freeze updates', 'freeze_updates', NULL));
1288 if (!$frozen) :
1289 $frozen_values = get_post_custom_values('_syndication_freeze_updates', $old_post->ID);
1290 $frozen = (count($frozen_values) > 0 and 'yes' == $frozen_values[0]);
1291 endif;
1292 endif;
1293 $updated = ($updated and !$frozen);
1294
1295 if ($updated) :
1296 FeedWordPress::diagnostic('feed_items:freshness', 'Item ['.$this->guid().'] "'.$this->entry->get_title().'" is an update of an existing post.');
1297 $this->_freshness = 1; // Updated content
1298 $this->_wp_id = $old_post->ID;
1299
1300 // We want this to keep a running list of all the
1301 // processed update hashes.
1302 $this->post['meta']['syndication_item_hash'] = array_merge(
1303 $this->stored_hashes(),
1304 array($this->update_hash())
1305 );
1306 else :
1307 FeedWordPress::diagnostic('feed_items:freshness', 'Item ['.$this->guid().'] "'.$this->entry->get_title().'" is a duplicate of an existing post.');
1308 $this->_freshness = 0; // Same old, same old
1309 $this->_wp_id = $old_post->ID;
1310 endif;
1311 endif;
1312 endif;
1313 return $this->_freshness;
1314 }
1315
1316 #################################################
1317 #### INTERNAL STORAGE AND MANAGEMENT METHODS ####
1318 #################################################
1319
1320 function wp_id () {
1321 if ($this->filtered()) : // This should never happen.
1322 FeedWordPress::critical_bug('SyndicatedPost', $this, __LINE__, __FILE__);
1323 endif;
1324
1325 if (is_null($this->_wp_id) and is_null($this->_freshness)) :
1326 $fresh = $this->freshness(); // sets WP DB id in the process
1327 endif;
1328 return $this->_wp_id;
1329 }
1330
1331 function store () {
1332 global $wpdb;
1333
1334 if ($this->filtered()) : // This should never happen.
1335 FeedWordPress::critical_bug('SyndicatedPost', $this, __LINE__, __FILE__);
1336 endif;
1337
1338 $freshness = $this->freshness();
1339 if ($freshness > 0) :
1340 # -- Look up, or create, numeric ID for author
1341 $this->post['post_author'] = $this->author_id (
1342 $this->link->setting('unfamiliar author', 'unfamiliar_author', 'create')
1343 );
1344
1345 if (is_null($this->post['post_author'])) :
1346 FeedWordPress::diagnostic('feed_items:rejected', 'Filtered out item ['.$this->guid().'] without syndication: no author available');
1347 $this->post = NULL;
1348 endif;
1349 endif;
1350
1351 if (!$this->filtered() and $freshness > 0) :
1352 $consider = array(
1353 'category' => array('abbr' => 'cats', 'domain' => array('category', 'post_tag')),
1354 'post_tag' => array('abbr' => 'tags', 'domain' => array('post_tag')),
1355 );
1356
1357 $termSet = array(); $valid = null;
1358 foreach ($consider as $what => $taxes) :
1359 if (!is_null($this->post)) : // Not filtered out yet
1360 # -- Look up, or create, numeric ID for categories
1361 $taxonomies = $this->link->setting("match/".$taxes['abbr'], 'match_'.$taxes['abbr'], $taxes['domain']);
1362
1363 // Eliminate dummy variables
1364 $taxonomies = array_filter($taxonomies, 'remove_dummy_zero');
1365
1366 $terms = $this->category_ids (
1367 $this->feed_terms[$what],
1368 $this->link->setting("unfamiliar {$what}", "unfamiliar_{$what}", 'create:'.$what),
1369 /*taxonomies=*/ $taxonomies,
1370 array(
1371 'singleton' => false, // I don't like surprises
1372 'filters' => true,
1373 )
1374 );
1375
1376 if (is_null($terms) or is_null($termSet)) :
1377 // filtered out -- no matches
1378 else :
1379 $valid = true;
1380
1381 // filter mode off, or at least one match
1382 foreach ($terms as $tax => $term_ids) :
1383 if (!isset($termSet[$tax])) :
1384 $termSet[$tax] = array();
1385 endif;
1386 $termSet[$tax] = array_merge($termSet[$tax], $term_ids);
1387 endforeach;
1388 endif;
1389 endif;
1390 endforeach;
1391
1392 if (is_null($valid)) : // Plonked
1393 $this->post = NULL;
1394 else : // We can proceed
1395 $this->post['tax_input'] = array();
1396 foreach ($termSet as $tax => $term_ids) :
1397 if (!isset($this->post['tax_input'][$tax])) :
1398 $this->post['tax_input'][$tax] = array();
1399 endif;
1400 $this->post['tax_input'][$tax] = array_merge(
1401 $this->post['tax_input'][$tax],
1402 $term_ids
1403 );
1404 endforeach;
1405
1406 // Now let's add on the feed and global presets
1407 foreach ($this->preset_terms as $tax => $term_ids) :
1408 if (!isset($this->post['tax_input'][$tax])) :
1409 $this->post['tax_input'][$tax] = array();
1410 endif;
1411
1412 $this->post['tax_input'][$tax] = array_merge (
1413 $this->post['tax_input'][$tax],
1414 $this->category_ids (
1415 /*terms=*/ $term_ids,
1416 /*unfamiliar=*/ 'create:'.$tax, // These are presets; for those added in a tagbox editor, the tag may not yet exist
1417 /*taxonomies=*/ array($tax),
1418 array(
1419 'singleton' => true,
1420 ))
1421 );
1422 endforeach;
1423 endif;
1424 endif;
1425
1426 if (!$this->filtered() and $freshness > 0) :
1427 // Filter some individual fields
1428
1429 // Allow filters to set post slug. Props niska.
1430 $post_name = apply_filters('syndicated_post_slug', NULL, $this);
1431 if (!empty($post_name)) :
1432 $this->post['post_name'] = $post_name;
1433 endif;
1434
1435 $this->post = apply_filters('syndicated_post', $this->post, $this);
1436
1437 // Allow for feed-specific syndicated_post filters.
1438 $this->post = apply_filters(
1439 "syndicated_post_".$this->link->uri(),
1440 $this->post,
1441 $this
1442 );
1443 endif;
1444
1445 // Hook in early to make sure these get inserted if at all possible
1446 add_action(
1447 /*hook=*/ 'transition_post_status',
1448 /*callback=*/ array(&$this, 'add_rss_meta'),
1449 /*priority=*/ -10000, /* very early */
1450 /*arguments=*/ 3
1451 );
1452
1453 $retval = array(1 => 'updated', 2 => 'new');
1454
1455 $ret = false;
1456 if (!$this->filtered() and isset($retval[$freshness])) :
1457 $diag = array(
1458 1 => 'Updating existing post # '.$this->wp_id().', "'.$this->post['post_title'].'"',
1459 2 => 'Inserting new post "'.$this->post['post_title'].'"',
1460 );
1461 FeedWordPress::diagnostic('syndicated_posts', $diag[$freshness]);
1462
1463 $this->insert_post(/*update=*/ ($freshness == 1));
1464
1465 $hook = array( 1 => 'update_syndicated_item', 2 => 'post_syndicated_item' );
1466 do_action($hook[$freshness], $this->wp_id(), $this);
1467
1468 $ret = $retval[$freshness];
1469 endif;
1470
1471 // Remove add_rss_meta hook
1472 remove_action(
1473 /*hook=*/ 'transition_post_status',
1474 /*callback=*/ array(&$this, 'add_rss_meta'),
1475 /*priority=*/ -10000, /* very early */
1476 /*arguments=*/ 3
1477 );
1478
1479 return $ret;
1480 } /* function SyndicatedPost::store () */
1481
1482 function insert_post ($update = false) {
1483 global $wpdb;
1484
1485 $dbpost = $this->normalize_post(/*new=*/ true);
1486 if (!is_null($dbpost)) :
1487 $dbpost['post_pingback'] = false; // Tell WP 2.1 and 2.2 not to process for pingbacks
1488
1489 // This is a ridiculous fucking kludge necessitated by WordPress 2.6 munging authorship meta-data
1490 add_action('_wp_put_post_revision', array($this, 'fix_revision_meta'));
1491
1492 // Kludge to prevent kses filters from stripping the
1493 // content of posts when updating without a logged in
1494 // user who has `unfiltered_html` capability.
1495 $mungers = array('wp_filter_kses', 'wp_filter_post_kses');
1496 $removed = array();
1497 foreach ($mungers as $munger) :
1498 if (has_filter('content_save_pre', $munger)) :
1499 remove_filter('content_save_pre', $munger);
1500 $removed[] = $munger;
1501 endif;
1502 endforeach;
1503
1504 if ($update and function_exists('get_post_field')) :
1505 // Don't munge status fields that the user may
1506 // have reset manually
1507 $doNotMunge = array('post_status', 'comment_status', 'ping_status');
1508
1509 foreach ($doNotMunge as $field) :
1510 $dbpost[$field] = get_post_field($field, $this->wp_id());
1511 endforeach;
1512 endif;
1513
1514 // WP3's wp_insert_post scans current_user_can() for the
1515 // tax_input, with no apparent way to override. Ugh.
1516 add_action(
1517 /*hook=*/ 'transition_post_status',
1518 /*callback=*/ array(&$this, 'add_terms'),
1519 /*priority=*/ -10001, /* very early */
1520 /*arguments=*/ 3
1521 );
1522
1523 // WP3 appears to override whatever you give it for
1524 // post_modified. Ugh.
1525 add_action(
1526 /*hook=*/ 'transition_post_status',
1527 /*callback=*/ array(&$this, 'fix_post_modified_ts'),
1528 /*priority=*/ -10000, /* very early */
1529 /*arguments=*/ 3
1530 );
1531
1532 if ($update) :
1533 $this->post['ID'] = $this->wp_id();
1534 $dbpost['ID'] = $this->post['ID'];
1535 endif;
1536
1537 $this->_wp_id = wp_insert_post($dbpost, /*return wp_error=*/ true);
1538
1539 remove_action(
1540 /*hook=*/ 'transition_post_status',
1541 /*callback=*/ array(&$this, 'add_terms'),
1542 /*priority=*/ -10001, /* very early */
1543 /*arguments=*/ 3
1544 );
1545
1546 remove_action(
1547 /*hook=*/ 'transition_post_status',
1548 /*callback=*/ array(&$this, 'fix_post_modified_ts'),
1549 /*priority=*/ -10000, /* very early */
1550 /*arguments=*/ 3
1551 );
1552
1553 // Turn off ridiculous fucking kludges #1 and #2
1554 remove_action('_wp_put_post_revision', array($this, 'fix_revision_meta'));
1555 foreach ($removed as $filter) :
1556 add_filter('content_save_pre', $removed);
1557 endforeach;
1558
1559 $this->validate_post_id($dbpost, $update, array(__CLASS__, __FUNCTION__));
1560 endif;
1561 } /* function SyndicatedPost::insert_post () */
1562
1563 function insert_new () {
1564 $this->insert_post(/*update=*/ false);
1565 } /* SyndicatedPost::insert_new() */
1566
1567 function update_existing () {
1568 $this->insert_post(/*update=*/ true);
1569 } /* SyndicatedPost::update_existing() */
1570
1571 /**
1572 * SyndicatedPost::normalize_post()
1573 *
1574 * @param bool $new If true, this post is to be inserted anew. If false, it is an update of an existing post.
1575 * @return array A normalized representation of the post ready to be inserted into the database or sent to the WordPress API functions
1576 */
1577 function normalize_post ($new = true) {
1578 global $wpdb;
1579
1580 $out = $this->post;
1581
1582 $fullPost = $out['post_title'].$out['post_content'];
1583 $fullPost .= (isset($out['post_excerpt']) ? $out['post_excerpt'] : '');
1584 if (strlen($fullPost) < 1) :
1585 // FIXME: Option for filtering out empty posts
1586 endif;
1587 if (strlen($out['post_title'])==0) :
1588 $offset = (int) get_option('gmt_offset') * 60 * 60;
1589 if (isset($this->post['meta']['syndication_source'])) :
1590 $source_title = $this->post['meta']['syndication_source'];
1591 else :
1592 $feed_url = parse_url($this->post['meta']['syndication_feed']);
1593 $source_title = $feed_url['host'];
1594 endif;
1595
1596 $out['post_title'] = $source_title
1597 .' '.gmdate('Y-m-d H:i:s', $this->published() + $offset);
1598 // FIXME: Option for what to fill a blank title with...
1599 endif;
1600
1601 // Normalize the guid if necessary.
1602 $out['guid'] = SyndicatedPost::normalize_guid($out['guid']);
1603
1604 // Why the fuck doesn't wp_insert_post already do this?
1605 foreach ($out as $key => $value) :
1606 if (is_string($value)) :
1607 $out[$key] = $wpdb->escape($value);
1608 else :
1609 $out[$key] = $value;
1610 endif;
1611 endforeach;
1612
1613 return $out;
1614 }
1615
1616 /**
1617 * SyndicatedPost::validate_post_id()
1618 *
1619 * @param array $dbpost An array representing the post we attempted to insert or update
1620 * @param mixed $ns A string or array representing the namespace (class, method) whence this method was called.
1621 */
1622 function validate_post_id ($dbpost, $is_update, $ns) {
1623 if (is_array($ns)) : $ns = implode('::', $ns);
1624 else : $ns = (string) $ns; endif;
1625
1626 // This should never happen.
1627 if (!is_numeric($this->_wp_id) or ($this->_wp_id == 0)) :
1628 $verb = ($is_update ? 'update existing' : 'insert new');
1629 $guid = $this->guid();
1630 $url = $this->permalink();
1631 $feed = $this->link->uri(array('add_params' => true));
1632
1633 // wp_insert_post failed. Diagnostics, or barf up a critical bug
1634 // notice if we are in debug mode.
1635 $mesg = "Failed to $verb item [$guid]. WordPress API returned no valid post ID.\n"
1636 ."\t\tID = ".serialize($this->_wp_id)."\n"
1637 ."\t\tURL = ".FeedWordPress::val($url)
1638 ."\t\tFeed = ".FeedWordPress::val($feed);
1639 FeedWordPress::diagnostic('updated_feeds:errors', "WordPress API error: $mesg");
1640 FeedWordPress::diagnostic('feed_items:rejected', $mesg);
1641
1642 $mesg = <<<EOM
1643 The WordPress API returned an invalid post ID
1644 when FeedWordPress tried to $verb item $guid
1645 [URL: $url]
1646 from the feed at $feed
1647
1648 $ns::_wp_id
1649 EOM;
1650 FeedWordPress::noncritical_bug(
1651 /*message=*/ $mesg,
1652 /*var =*/ array(
1653 "\$this->_wp_id" => $this->_wp_id,
1654 "\$dbpost" => $dbpost,
1655 ),
1656 /*line # =*/ __LINE__, /*filename=*/ __FILE__
1657 );
1658 endif;
1659 } /* SyndicatedPost::validate_post_id() */
1660
1661 /**
1662 * SyndicatedPost::fix_revision_meta() - Fixes the way WP 2.6+ fucks up
1663 * meta-data (authorship, etc.) when storing revisions of an updated
1664 * syndicated post.
1665 *
1666 * In their infinite wisdom, the WordPress coders have made it completely
1667 * impossible for a plugin that uses wp_insert_post() to set certain
1668 * meta-data (such as the author) when you store an old revision of an
1669 * updated post. Instead, it uses the WordPress defaults (= currently
1670 * active user ID if the process is running with a user logged in, or
1671 * = #0 if there is no user logged in). This results in bogus authorship
1672 * data for revisions that are syndicated from off the feed, unless we
1673 * use a ridiculous kludge like this to end-run the munging of meta-data
1674 * by _wp_put_post_revision.
1675 *
1676 * @param int $revision_id The revision ID to fix up meta-data
1677 */
1678 function fix_revision_meta ($revision_id) {
1679 global $wpdb;
1680
1681 $post_author = (int) $this->post['post_author'];
1682
1683 $revision_id = (int) $revision_id;
1684 $wpdb->query("
1685 UPDATE $wpdb->posts
1686 SET post_author={$this->post['post_author']}
1687 WHERE post_type = 'revision' AND ID='$revision_id'
1688 ");
1689 } /* SyndicatedPost::fix_revision_meta () */
1690
1691 /**
1692 * SyndicatedPost::add_terms() -- if FeedWordPress is processing an
1693 * automatic update, that generally means that wp_insert_post() is being
1694 * called under the user credentials of whoever is viewing the blog at
1695 * the time -- which usually means no user at all. But wp_insert_post()
1696 * checks current_user_can() before assigning any of the terms in a
1697 * post's tax_input structure -- which is unfortunate, since
1698 * current_user_can() always returns FALSE when there is no current user
1699 * logged in. Meaning that automatic updates get no terms assigned.
1700 *
1701 * So, wp_insert_post() is not going to do the term assignments for us.
1702 * If you want something done right....
1703 *
1704 * @param string $new_status Unused action parameter.
1705 * @param string $old_status Unused action parameter.
1706 * @param object $post The database record for the post just inserted.
1707 */
1708 function add_terms ($new_status, $old_status, $post) {
1709 if ($new_status!='inherit') : // Bail if we are creating a revision.
1710 if ( is_array($this->post) and isset($this->post['tax_input']) and is_array($this->post['tax_input']) ) :
1711 foreach ($this->post['tax_input'] as $taxonomy => $terms) :
1712 if (is_array($terms)) :
1713 $terms = array_filter($terms); // strip out empties
1714 endif;
1715 wp_set_post_terms($post->ID, $terms, $taxonomy);
1716 endforeach;
1717 endif;
1718 endif;
1719 } /* SyndicatedPost::add_terms () */
1720
1721 /**
1722 * SyndicatedPost::fix_post_modified_ts() -- We would like to set
1723 * post_modified and post_modified_gmt to reflect the value of
1724 * <atom:updated> or equivalent elements on the feed. Unfortunately,
1725 * wp_insert_post() refuses to acknowledge explicitly-set post_modified
1726 * fields and overwrites them, either with the post_date (if new) or the
1727 * current timestamp (if updated).
1728 *
1729 * So, wp_insert_post() is not going to do the last-modified assignments
1730 * for us. If you want something done right....
1731 *
1732 * @param string $new_status Unused action parameter.
1733 * @param string $old_status Unused action parameter.
1734 * @param object $post The database record for the post just inserted.
1735 */
1736 function fix_post_modified_ts ($new_status, $old_status, $post) {
1737 global $wpdb;
1738 if ($new_status!='inherit') : // Bail if we are creating a revision.
1739 $wpdb->update( $wpdb->posts, /*data=*/ array(
1740 'post_modified' => $this->post['post_modified'],
1741 'post_modified_gmt' => $this->post['post_modified_gmt'],
1742 ), /*where=*/ array('ID' => $post->ID) );
1743 endif;
1744 } /* SyndicatedPost::fix_post_modified_ts () */
1745
1746 /**
1747 * SyndicatedPost::add_rss_meta: adds interesting meta-data to each entry
1748 * using the space for custom keys. The set of keys and values to add is
1749 * specified by the keys and values of $post['meta']. This is used to
1750 * store anything that the WordPress user might want to access from a
1751 * template concerning the post's original source that isn't provided
1752 * for by standard WP meta-data (i.e., any interesting data about the
1753 * syndicated post other than author, title, timestamp, categories, and
1754 * guid). It's also used to hook into WordPress's support for
1755 * enclosures.
1756 *
1757 * @param string $new_status Unused action parameter.
1758 * @param string $old_status Unused action parameter.
1759 * @param object $post The database record for the post just inserted.
1760 */
1761 function add_rss_meta ($new_status, $old_status, $post) {
1762 global $wpdb;
1763 if ($new_status!='inherit') : // Bail if we are creating a revision.
1764 FeedWordPress::diagnostic('syndicated_posts:meta_data', 'Adding post meta-data: {'.implode(", ", array_keys($this->post['meta'])).'}');
1765
1766 if ( is_array($this->post) and isset($this->post['meta']) and is_array($this->post['meta']) ) :
1767 $postId = $post->ID;
1768
1769 // Aggregated posts should NOT send out pingbacks.
1770 // WordPress 2.1-2.2 claim you can tell them not to
1771 // using $post_pingback, but they don't listen, so we
1772 // make sure here.
1773 $result = $wpdb->query("
1774 DELETE FROM $wpdb->postmeta
1775 WHERE post_id='$postId' AND meta_key='_pingme'
1776 ");
1777
1778 foreach ( $this->post['meta'] as $key => $values ) :
1779 $eKey = $wpdb->escape($key);
1780
1781 // If this is an update, clear out the old
1782 // values to avoid duplication.
1783 $result = $wpdb->query("
1784 DELETE FROM $wpdb->postmeta
1785 WHERE post_id='$postId' AND meta_key='$eKey'
1786 ");
1787
1788 // Allow for either a single value or an array
1789 if (!is_array($values)) $values = array($values);
1790 foreach ( $values as $value ) :
1791 FeedWordPress::diagnostic('syndicated_posts:meta_data', "Adding post meta-datum to post [$postId]: [$key] = ".FeedWordPress::val($value, /*no newlines=*/ true));
1792 add_post_meta($postId, $key, $value, /*unique=*/ false);
1793 endforeach;
1794 endforeach;
1795 endif;
1796 endif;
1797 } /* SyndicatedPost::add_rss_meta () */
1798
1799 /**
1800 * SyndicatedPost::author_id (): get the ID for an author name from
1801 * the feed. Create the author if necessary.
1802 *
1803 * @param string $unfamiliar_author
1804 *
1805 * @return NULL|int The numeric ID of the author to attribute the post to
1806 * NULL if the post should be filtered out.
1807 */
1808 function author_id ($unfamiliar_author = 'create') {
1809 global $wpdb;
1810
1811 $a = $this->named['author'];
1812
1813 $source = $this->source();
1814 $forbidden = apply_filters('feedwordpress_forbidden_author_names',
1815 array('admin', 'administrator', 'www', 'root'));
1816
1817 // Prepare the list of candidates to try for author name: name from
1818 // feed, original source title (if any), immediate source title live
1819 // from feed, subscription title, prettied version of feed homepage URL,
1820 // prettied version of feed URL, or, failing all, use "unknown author"
1821 // as last resort
1822
1823 $candidates = array();
1824 $candidates[] = $a['name'];
1825 if (!is_null($source)) : $candidates[] = $source['title']; endif;
1826 $candidates[] = $this->link->name(/*fromFeed=*/ true);
1827 $candidates[] = $this->link->name(/*fromFeed=*/ false);
1828 if (strlen($this->link->homepage()) > 0) : $candidates[] = feedwordpress_display_url($this->link->homepage()); endif;
1829 $candidates[] = feedwordpress_display_url($this->link->uri());
1830 $candidates[] = 'unknown author';
1831
1832 // Pick the first one that works from the list, screening against empty
1833 // or forbidden names.
1834
1835 $author = NULL;
1836 while (is_null($author) and ($candidate = each($candidates))) :
1837 if (!is_null($candidate['value'])
1838 and (strlen(trim($candidate['value'])) > 0)
1839 and !in_array(strtolower(trim($candidate['value'])), $forbidden)) :
1840 $author = $candidate['value'];
1841 endif;
1842 endwhile;
1843
1844 $email = (isset($a['email']) ? $a['email'] : NULL);
1845 $authorUrl = (isset($a['uri']) ? $a['uri'] : NULL);
1846
1847
1848 $hostUrl = $this->link->homepage();
1849 if (is_null($hostUrl) or (strlen($hostUrl) < 0)) :
1850 $hostUrl = $this->link->uri();
1851 endif;
1852
1853 $match_author_by_email = !('yes' == get_option("feedwordpress_do_not_match_author_by_email"));
1854 if ($match_author_by_email and !FeedWordPress::is_null_email($email)) :
1855 $test_email = $email;
1856 else :
1857 $test_email = NULL;
1858 endif;
1859
1860 // Never can be too careful...
1861 $login = sanitize_user($author, /*strict=*/ true);
1862
1863 // Possible for, e.g., foreign script author names
1864 if (strlen($login) < 1) :
1865 // No usable characters in author name for a login.
1866 // (Sometimes results from, e.g., foreign scripts.)
1867 //
1868 // We just need *something* in Western alphanumerics,
1869 // so let's try the domain name.
1870 //
1871 // Uniqueness will be guaranteed below if necessary.
1872
1873 $url = parse_url($hostUrl);
1874
1875 $login = sanitize_user($url['host'], /*strict=*/ true);
1876 if (strlen($login) < 1) :
1877 // This isn't working. Frak it.
1878 $login = 'syndicated';
1879 endif;
1880 endif;
1881
1882 $login = apply_filters('pre_user_login', $login);
1883
1884 $nice_author = sanitize_title($author);
1885 $nice_author = apply_filters('pre_user_nicename', $nice_author);
1886
1887 $reg_author = $wpdb->escape(preg_quote($author));
1888 $author = $wpdb->escape($author);
1889 $email = $wpdb->escape($email);
1890 $test_email = $wpdb->escape($test_email);
1891 $authorUrl = $wpdb->escape($authorUrl);
1892
1893 // Check for an existing author rule....
1894 if (isset($this->link->settings['map authors']['name']['*'])) :
1895 $author_rule = $this->link->settings['map authors']['name']['*'];
1896 elseif (isset($this->link->settings['map authors']['name'][strtolower(trim($author))])) :
1897 $author_rule = $this->link->settings['map authors']['name'][strtolower(trim($author))];
1898 else :
1899 $author_rule = NULL;
1900 endif;
1901
1902 // User name is mapped to a particular author. If that author ID exists, use it.
1903 if (is_numeric($author_rule) and get_userdata((int) $author_rule)) :
1904 $id = (int) $author_rule;
1905
1906 // User name is filtered out
1907 elseif ('filter' == $author_rule) :
1908 $id = NULL;
1909
1910 else :
1911 // Check the database for an existing author record that might fit
1912
1913 // First try the user core data table.
1914 $id = $wpdb->get_var(
1915 "SELECT ID FROM $wpdb->users
1916 WHERE TRIM(LCASE(display_name)) = TRIM(LCASE('$author'))
1917 OR TRIM(LCASE(user_login)) = TRIM(LCASE('$author'))
1918 OR (
1919 LENGTH(TRIM(LCASE(user_email))) > 0
1920 AND TRIM(LCASE(user_email)) = TRIM(LCASE('$test_email'))
1921 )");
1922
1923 // If that fails, look for aliases in the user meta data table
1924 if (is_null($id)) :
1925 $id = $wpdb->get_var(
1926 "SELECT user_id FROM $wpdb->usermeta
1927 WHERE
1928 (meta_key = 'description' AND TRIM(LCASE(meta_value)) = TRIM(LCASE('$author')))
1929 OR (
1930 meta_key = 'description'
1931 AND TRIM(LCASE(meta_value))
1932 RLIKE CONCAT(
1933 '(^|\\n)a\\.?k\\.?a\\.?( |\\t)*:?( |\\t)*',
1934 TRIM(LCASE('$reg_author')),
1935 '( |\\t|\\r)*(\\n|\$)'
1936 )
1937 )
1938 ");
1939 endif;
1940
1941 // ... if you don't find one, then do what you need to do
1942 if (is_null($id)) :
1943 if ($unfamiliar_author === 'create') :
1944 $userdata = array();
1945
1946 // WordPress 3 is going to pitch a fit if we attempt to register
1947 // more than one user account with an empty e-mail address, so we
1948 // need *something* here. Ugh.
1949 if (strlen($email) == 0 or FeedWordPress::is_null_email($email)) :
1950 $url = parse_url($hostUrl);
1951 $email = $nice_author.'@'.$url['host'];
1952 endif;
1953
1954 #-- user table data
1955 $userdata['ID'] = NULL; // new user
1956 $userdata['user_login'] = $login;
1957 $userdata['user_nicename'] = $nice_author;
1958 $userdata['user_pass'] = substr(md5(uniqid(microtime())), 0, 6); // just something random to lock it up
1959 $userdata['user_email'] = $email;
1960 $userdata['user_url'] = $authorUrl;
1961 $userdata['nickname'] = $author;
1962 $parts = preg_split('/\s+/', trim($author), 2);
1963 if (isset($parts[0])) : $userdata['first_name'] = $parts[0]; endif;
1964 if (isset($parts[1])) : $userdata['last_name'] = $parts[1]; endif;
1965 $userdata['display_name'] = $author;
1966 $userdata['role'] = 'contributor';
1967
1968 do { // Keep trying until you get it right. Or until PHP crashes, I guess.
1969 $id = wp_insert_user($userdata);
1970 if (is_wp_error($id)) :
1971 $codes = $id->get_error_code();
1972 switch ($codes) :
1973 case 'empty_user_login' :
1974 case 'existing_user_login' :
1975 // Add a random disambiguator
1976 $userdata['user_login'] .= substr(md5(uniqid(microtime())), 0, 6);
1977 break;
1978 case 'existing_user_email' :
1979 // No disassemble!
1980 $parts = explode('@', $userdata['user_email'], 2);
1981
1982 // Add a random disambiguator as a gmail-style username extension
1983 $parts[0] .= '+'.substr(md5(uniqid(microtime())), 0, 6);
1984
1985 // Reassemble
1986 $userdata['user_email'] = $parts[0].'@'.$parts[1];
1987 break;
1988 endswitch;
1989 endif;
1990 } while (is_wp_error($id));
1991 elseif (is_numeric($unfamiliar_author) and get_userdata((int) $unfamiliar_author)) :
1992 $id = (int) $unfamiliar_author;
1993 elseif ($unfamiliar_author === 'default') :
1994 $id = 1;
1995 endif;
1996 endif;
1997 endif;
1998
1999 if ($id) :
2000 $this->link->settings['map authors']['name'][strtolower(trim($author))] = $id;
2001
2002 // Multisite: Check whether the author has been recorded
2003 // on *this* blog before. If not, put her down as a
2004 // Contributor for *this* blog.
2005 $user = new WP_User((int) $id);
2006 if (empty($user->roles)) :
2007 $user->add_role('contributor');
2008 endif;
2009 endif;
2010 return $id;
2011 } /* function SyndicatedPost::author_id () */
2012
2013 /**
2014 * category_ids: look up (and create) category ids from a list of categories
2015 *
2016 * @param array $cats
2017 * @param string $unfamiliar_category
2018 * @param array|null $taxonomies
2019 * @return array
2020 */
2021 function category_ids ($cats, $unfamiliar_category = 'create', $taxonomies = NULL, $params = array()) {
2022 $singleton = (isset($params['singleton']) ? $params['singleton'] : true);
2023 $allowFilters = (isset($params['filters']) ? $params['filters'] : false);
2024
2025 $catTax = 'category';
2026
2027 if (is_null($taxonomies)) :
2028 $taxonomies = array('category');
2029 endif;
2030
2031 // We need to normalize whitespace because (1) trailing
2032 // whitespace can cause PHP and MySQL not to see eye to eye on
2033 // VARCHAR comparisons for some versions of MySQL (cf.
2034 // <http://dev.mysql.com/doc/mysql/en/char.html>), and (2)
2035 // because I doubt most people want to make a semantic
2036 // distinction between 'Computers' and 'Computers '
2037 $cats = array_map('trim', $cats);
2038
2039 $terms = array();
2040 foreach ($taxonomies as $tax) :
2041 $terms[$tax] = array();
2042 endforeach;
2043
2044 foreach ($cats as $cat_name) :
2045 if (preg_match('/^{([^#}]*)#([0-9]+)}$/', $cat_name, $backref)) :
2046 $cat_id = (int) $backref[2];
2047 $tax = $backref[1];
2048 if (strlen($tax) < 1) :
2049 $tax = $catTax;
2050 endif;
2051
2052 $term = term_exists($cat_id, $tax);
2053 if (!is_wp_error($term) and !!$term) :
2054 if (!isset($terms[$tax])) :
2055 $terms[$tax] = array();
2056 endif;
2057 $terms[$tax][] = $cat_id;
2058 endif;
2059 elseif (strlen($cat_name) > 0) :
2060 $familiar = false;
2061 foreach ($taxonomies as $tax) :
2062 if ($tax!='category' or strtolower($cat_name)!='uncategorized') :
2063 $term = term_exists($cat_name, $tax);
2064 if (!is_wp_error($term) and !!$term) :
2065 $familiar = true;
2066
2067 if (is_array($term)) :
2068 $term_id = (int) $term['term_id'];
2069 else :
2070 $term_id = (int) $term;
2071 endif;
2072
2073 if (!isset($terms[$tax])) :
2074 $terms[$tax] = array();
2075 endif;
2076 $terms[$tax][] = $term_id;
2077 break; // We're done here.
2078 endif;
2079 endif;
2080 endforeach;
2081
2082 if (!$familiar) :
2083 if ('tag'==$unfamiliar_category) :
2084 $unfamiliar_category = 'create:post_tag';
2085 endif;
2086
2087 if (preg_match('/^create(:(.*))?$/i', $unfamiliar_category, $ref)) :
2088 $tax = $catTax; // Default
2089 if (isset($ref[2]) and strlen($ref[2]) > 2) :
2090 $tax = $ref[2];
2091 endif;
2092 $term = wp_insert_term($cat_name, $tax);
2093 if (is_wp_error($term)) :
2094 FeedWordPress::noncritical_bug('term insertion problem', array('cat_name' => $cat_name, 'term' => $term, 'this' => $this), __LINE__, __FILE__);
2095 else :
2096 if (!isset($terms[$tax])) :
2097 $terms[$tax] = array();
2098 endif;
2099 $terms[$tax][] = (int) $term['term_id'];
2100 endif;
2101 endif;
2102 endif;
2103 endif;
2104 endforeach;
2105
2106 $filtersOn = $allowFilters;
2107 if ($allowFilters) :
2108 $filters = array_filter(
2109 $this->link->setting('match/filter', 'match_filter', array()),
2110 'remove_dummy_zero'
2111 );
2112 $filtersOn = ($filtersOn and is_array($filters) and (count($filters) > 0));
2113 endif;
2114
2115 // Check for filter conditions
2116 foreach ($terms as $tax => $term_ids) :
2117 if ($filtersOn
2118 and (count($term_ids)==0)
2119 and in_array($tax, $filters)) :
2120 $terms = NULL; // Drop the post
2121 break;
2122 else :
2123 $terms[$tax] = array_unique($term_ids);
2124 endif;
2125 endforeach;
2126
2127 if ($singleton and count($terms)==1) : // If we only searched one, just return the term IDs
2128 $terms = end($terms);
2129 endif;
2130 return $terms;
2131 } // function SyndicatedPost::category_ids ()
2132
2133 function use_api ($tag) {
2134 global $wp_db_version;
2135 switch ($tag) :
2136 case 'wp_insert_post':
2137 // Before 2.2, wp_insert_post does too much of the wrong stuff to use it
2138 // In 1.5 it was such a resource hog it would make PHP segfault on big updates
2139 $ret = (isset($wp_db_version) and $wp_db_version > FWP_SCHEMA_21);
2140 break;
2141 case 'post_status_pending':
2142 $ret = (isset($wp_db_version) and $wp_db_version > FWP_SCHEMA_23);
2143 break;
2144 endswitch;
2145 return $ret;
2146 } // function SyndicatedPost::use_api ()
2147
2148 } /* class SyndicatedPost */
2149
2150