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FeedWordPress / 2011.0531
FeedWordPress v2011.0531
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feedwordpress / feedwordpress.php

feedwordpress.php in FeedWordPress 2011.0531, at feedwordpress.php

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1 <?php
2 /*
3 Plugin Name: FeedWordPress
4 Plugin URI: http://feedwordpress.radgeek.com/
5 Description: simple and flexible Atom/RSS syndication for WordPress
6 Version: 2011.0531
7 Author: Charles Johnson
8 Author URI: http://radgeek.com/
9 License: GPL
10 */
11
12 /**
13 * @package FeedWordPress
14 * @version 2011.0531
15 */
16
17 # This uses code derived from:
18 # - wp-rss-aggregate.php by Kellan Elliot-McCrea <kellan@protest.net>
19 # - MagpieRSS by Kellan Elliot-McCrea <kellan@protest.net>
20 # - Ultra-Liberal Feed Finder by Mark Pilgrim <mark@diveintomark.org>
21 # - WordPress Blog Tool and Publishing Platform <http://wordpress.org/>
22 # according to the terms of the GNU General Public License.
23 #
24 # INSTALLATION: see readme.txt or <http://projects.radgeek.com/install>
25 #
26 # USAGE: once FeedWordPress is installed, you manage just about everything from
27 # the WordPress Dashboard, under the Syndication menu. To ensure that fresh
28 # content is added as it becomes available, you can convince your contributors
29 # to put your XML-RPC URI (if WordPress is installed at
30 # <http://www.zyx.com/blog>, XML-RPC requests should be sent to
31 # <http://www.zyx.com/blog/xmlrpc.php>), or update manually under the
32 # Syndication menu, or set up automatic updates under Syndication --> Settings,
33 # or use a cron job.
34
35 # -- Don't change these unless you know what you're doing...
36
37 define ('FEEDWORDPRESS_VERSION', '2011.0531');
38 define ('FEEDWORDPRESS_AUTHOR_CONTACT', 'http://radgeek.com/contact');
39
40 if (!defined('FEEDWORDPRESS_BLEG')) :
41 define ('FEEDWORDPRESS_BLEG', true);
42 endif;
43
44 // Defaults
45 define ('DEFAULT_SYNDICATION_CATEGORY', 'Contributors');
46 define ('DEFAULT_UPDATE_PERIOD', 60); // value in minutes
47
48 if (isset($_REQUEST['feedwordpress_debug'])) :
49 $feedwordpress_debug = $_REQUEST['feedwordpress_debug'];
50 else :
51 $feedwordpress_debug = get_option('feedwordpress_debug');
52 if (is_string($feedwordpress_debug)) :
53 $feedwordpress_debug = ($feedwordpress_debug == 'yes');
54 endif;
55 endif;
56 define ('FEEDWORDPRESS_DEBUG', $feedwordpress_debug);
57
58 define ('FEEDWORDPRESS_CAT_SEPARATOR_PATTERN', '/[:\n]/');
59 define ('FEEDWORDPRESS_CAT_SEPARATOR', "\n");
60
61 define ('FEEDVALIDATOR_URI', 'http://feedvalidator.org/check.cgi');
62
63 define ('FEEDWORDPRESS_FRESHNESS_INTERVAL', 10*60); // Every ten minutes
64
65 define ('FWP_SCHEMA_HAS_USERMETA', 2966);
66 define ('FWP_SCHEMA_USES_ARGS_TAXONOMY', 12694); // Revision # for using $args['taxonomy'] to get link categories
67 define ('FWP_SCHEMA_20', 3308); // Database schema # for WP 2.0
68 define ('FWP_SCHEMA_21', 4772); // Database schema # for WP 2.1
69 define ('FWP_SCHEMA_23', 5495); // Database schema # for WP 2.3
70 define ('FWP_SCHEMA_25', 7558); // Database schema # for WP 2.5
71 define ('FWP_SCHEMA_26', 8201); // Database schema # for WP 2.6
72 define ('FWP_SCHEMA_27', 9872); // Database schema # for WP 2.7
73 define ('FWP_SCHEMA_28', 11548); // Database schema # for WP 2.8
74 define ('FWP_SCHEMA_29', 12329); // Database schema # for WP 2.9
75 define ('FWP_SCHEMA_30', 12694); // Database schema # for WP 3.0
76
77 if (FEEDWORDPRESS_DEBUG) :
78 // Help us to pick out errors, if any.
79 ini_set('error_reporting', E_ALL & ~E_NOTICE);
80 ini_set('display_errors', true);
81
82 // When testing we don't want cache issues to interfere. But this is
83 // a VERY BAD SETTING for a production server. Webmasters will eat your
84 // face for breakfast if you use it, and the baby Jesus will cry. So
85 // make sure FEEDWORDPRESS_DEBUG is FALSE for any site that will be
86 // used for more than testing purposes!
87 define('FEEDWORDPRESS_CACHE_AGE', 1);
88 define('FEEDWORDPRESS_CACHE_LIFETIME', 1);
89 define('FEEDWORDPRESS_FETCH_TIMEOUT_DEFAULT', 60);
90 else :
91 // Hold onto data all day for conditional GET purposes,
92 // but consider it stale after 1 min (requiring a conditional GET)
93 define('FEEDWORDPRESS_CACHE_LIFETIME', 24*60*60);
94 define('FEEDWORDPRESS_CACHE_AGE', 1*60);
95 define('FEEDWORDPRESS_FETCH_TIMEOUT_DEFAULT', 20);
96 endif;
97
98 // Use our the cache settings that we want.
99 add_filter('wp_feed_cache_transient_lifetime', array('FeedWordPress', 'cache_lifetime'));
100
101 // Ensure that we have SimplePie loaded up and ready to go.
102 // We no longer need a MagpieRSS upgrade module. Hallelujah!
103 if (!class_exists('SimplePie')) :
104 require_once(ABSPATH . WPINC . '/class-simplepie.php');
105 endif;
106 require_once(ABSPATH . WPINC . '/class-feed.php');
107
108 if (!function_exists('wp_insert_user')) :
109 require_once (ABSPATH . WPINC . '/registration.php'); // for wp_insert_user
110 endif;
111
112 $dir = dirname(__FILE__);
113 require_once("${dir}/admin-ui.php");
114 require_once("${dir}/feedwordpresssyndicationpage.class.php");
115 require_once("${dir}/compatability.php"); // Legacy API
116 require_once("${dir}/syndicatedpost.class.php");
117 require_once("${dir}/syndicatedlink.class.php");
118 require_once("${dir}/feedwordpresshtml.class.php");
119 require_once("${dir}/feedwordpress-content-type-sniffer.class.php");
120 require_once("${dir}/inspectpostmeta.class.php");
121 require_once("${dir}/syndicationdataqueries.class.php");
122
123 // Magic quotes are just about the stupidest thing ever.
124 if (is_array($_POST)) :
125 $fwp_post = $_POST;
126 if (get_magic_quotes_gpc()) :
127 $fwp_post = stripslashes_deep($fwp_post);
128 endif;
129 endif;
130
131 // Get the path relative to the plugins directory in which FWP is stored
132 preg_match (
133 '|'.preg_quote(WP_PLUGIN_DIR).'/(.+)$|',
134 dirname(__FILE__),
135 $ref
136 );
137
138 if (isset($ref[1])) :
139 $fwp_path = $ref[1];
140 else : // Something went wrong. Let's just guess.
141 $fwp_path = 'feedwordpress';
142 endif;
143
144 // If this is a FeedWordPress admin page, queue up scripts for AJAX functions that FWP uses
145 // If it is a display page or a non-FeedWordPress admin page, don't.
146 wp_register_style('feedwordpress-elements', WP_PLUGIN_URL.'/'.$fwp_path.'/feedwordpress-elements.css');
147 if (FeedWordPressSettingsUI::is_admin()) :
148 // For JavaScript that needs to be generated dynamically
149 add_action('admin_print_scripts', array('FeedWordPressSettingsUI', 'admin_scripts'));
150
151 // For CSS that needs to be generated dynamically.
152 add_action('admin_print_styles', array('FeedWordPressSettingsUI', 'admin_styles'));
153
154 wp_enqueue_style('dashboard');
155 wp_enqueue_style('feedwordpress-elements');
156
157 if (function_exists('wp_admin_css')) :
158 wp_admin_css('css/dashboard');
159 endif;
160 endif;
161
162 if (!FeedWordPress::needs_upgrade()) : // only work if the conditions are safe!
163
164 # Syndicated items are generally received in output-ready (X)HTML and
165 # should not be folded, crumpled, mutilated, or spindled by WordPress
166 # formatting filters. But we don't want to interfere with filters for
167 # any locally-authored posts, either.
168 #
169 # What WordPress should really have is a way for upstream filters to
170 # stop downstream filters from running at all. Since it doesn't, and
171 # since a downstream filter can't access the original copy of the text
172 # that is being filtered, what we will do here is (1) save a copy of the
173 # original text upstream, before any other filters run, and then (2)
174 # retrieve that copy downstream, after all the other filters run, *if*
175 # this is a syndicated post
176
177 add_filter('the_content', 'feedwordpress_preserve_syndicated_content', -10000);
178 add_filter('the_content', 'feedwordpress_restore_syndicated_content', 10000);
179
180 add_action('atom_entry', 'feedwordpress_item_feed_data');
181
182 # Filter in original permalinks if the user wants that
183 add_filter('post_link', 'syndication_permalink', /*priority=*/ 1, /*arguments=*/ 3);
184
185 # When foreign URLs are used for permalinks in feeds or display
186 # contexts, they need to be escaped properly.
187 add_filter('the_permalink', 'syndication_permalink_escaped');
188 add_filter('the_permalink_rss', 'syndication_permalink_escaped');
189
190 add_filter('post_comments_feed_link', 'syndication_comments_feed_link');
191
192 # WTF? By default, wp_insert_link runs incoming link_url and link_rss
193 # URIs through default filters that include `wp_kses()`. But `wp_kses()`
194 # just happens to escape any occurrence of & to &amp; -- which just
195 # happens to fuck up any URI with a & to separate GET parameters.
196 remove_filter('pre_link_rss', 'wp_filter_kses');
197 remove_filter('pre_link_url', 'wp_filter_kses');
198
199 # Admin menu
200 add_action('admin_menu', 'fwp_add_pages');
201 add_action('admin_notices', 'fwp_check_debug');
202
203 add_action('admin_menu', 'feedwordpress_add_post_edit_controls');
204 add_action('save_post', 'feedwordpress_save_post_edit_controls');
205
206 add_action('admin_footer', array('FeedWordPress', 'admin_footer'));
207
208 # Inbound XML-RPC update methods
209 $feedwordpressRPC = new FeedWordPressRPC;
210
211 # Outbound XML-RPC ping reform
212 remove_action('publish_post', 'generic_ping'); // WP 1.5.x
213 remove_action('do_pings', 'do_all_pings', 10, 1); // WP 2.1, 2.2
214 remove_action('publish_post', '_publish_post_hook', 5, 1); // WP 2.3
215
216 add_action('publish_post', 'fwp_publish_post_hook', 5, 1);
217 add_action('do_pings', 'fwp_do_pings', 10, 1);
218 add_action('feedwordpress_update', 'fwp_hold_pings');
219 add_action('feedwordpress_update_complete', 'fwp_release_pings');
220
221 add_action('syndicated_feed_error', array('FeedWordPressDiagnostic', 'feed_error'), 100, 3);
222
223 add_action('wp_footer', 'debug_out_feedwordpress_footer', -100);
224 add_action('admin_footer', 'debug_out_feedwordpress_footer', -100);
225
226 $feedwordpress = new FeedWordPress;
227
228 # Cron-less auto-update. Hooray!
229 $autoUpdateHook = get_option('feedwordpress_automatic_updates');
230 if ($autoUpdateHook != 'init') :
231 $autoUpdateHook = 'shutdown';
232 endif;
233 add_action($autoUpdateHook, array(&$feedwordpress, 'auto_update'));
234 add_action('init', array(&$feedwordpress, 'init'));
235 add_action('shutdown', array(&$feedwordpress, 'email_diagnostic_log'));
236 add_action('wp_dashboard_setup', array(&$feedwordpress, 'dashboard_setup'));
237
238 # Default sanitizers
239 add_filter('syndicated_item_content', array('SyndicatedPost', 'resolve_relative_uris'), 0, 2);
240 add_filter('syndicated_item_content', array('SyndicatedPost', 'sanitize_content'), 0, 2);
241
242 else :
243 # Hook in the menus, which will just point to the upgrade interface
244 add_action('admin_menu', 'fwp_add_pages');
245 endif; // if (!FeedWordPress::needs_upgrade())
246
247 ################################################################################
248 ## LOGGING FUNCTIONS: log status updates to error_log if you want it ###########
249 ################################################################################
250
251 class FeedWordPressDiagnostic {
252 function feed_error ($error, $old, $link) {
253 $wpError = $error['object'];
254 $url = $link->uri();
255
256 $mesgs = $wpError->get_error_messages();
257 foreach ($mesgs as $mesg) :
258 $mesg = esc_html($mesg);
259 FeedWordPress::diagnostic(
260 'updated_feeds:errors',
261 "Feed Error: [${url}] update returned error: $mesg"
262 );
263
264 $hours = get_option('feedwordpress_diagnostics_persistent_errors_hours', 2);
265 $span = ($error['ts'] - $error['since']);
266
267 if ($span >= ($hours * 60 * 60)) :
268 $since = date('r', $error['since']);
269 $mostRecent = date('r', $error['ts']);
270 FeedWordPress::diagnostic(
271 'updated_feeds:errors:persistent',
272 "Feed Update Error: [${url}] returning errors"
273 ." since ${since}:<br/><code>$mesg</code>",
274 $url, $error['since'], $error['ts']
275 );
276 endif;
277 endforeach;
278 }
279
280 function admin_emails ($id = '') {
281 $users = get_users_of_blog($id);
282 $recipients = array();
283 foreach ($users as $user) :
284 $user_id = (isset($user->user_id) ? $user->user_id : $user->ID);
285 $dude = new WP_User($user_id);
286 if ($dude->has_cap('administrator')) :
287 if ($dude->user_email) :
288 $recipients[] = $dude->user_email;
289 endif;
290 endif;
291 endforeach;
292 return $recipients;
293 }
294 } /* class FeedWordPressDiagnostic */
295
296 function debug_out_human_readable_bytes ($quantity) {
297 $quantity = (int) $quantity;
298 $magnitude = 'B';
299 $orders = array('KB', 'MB', 'GB', 'TB');
300 while (($quantity > (1024*100)) and (count($orders) > 0)) :
301 $quantity = floor($quantity / 1024);
302 $magnitude = array_shift($orders);
303 endwhile;
304 return "${quantity} ${magnitude}";
305 }
306
307 function debug_out_feedwordpress_footer () {
308 if (FeedWordPress::diagnostic_on('memory_usage')) :
309 if (function_exists('memory_get_usage')) :
310 FeedWordPress::diagnostic ('memory_usage', "Memory: Current usage: ".debug_out_human_readable_bytes(memory_get_usage()));
311 endif;
312 if (function_exists('memory_get_peak_usage')) :
313 FeedWordPress::diagnostic ('memory_usage', "Memory: Peak usage: ".debug_out_human_readable_bytes(memory_get_peak_usage()));
314 endif;
315 endif;
316 } /* debug_out_feedwordpress_footer() */
317
318 ################################################################################
319 ## TEMPLATE API: functions to make your templates syndication-aware ############
320 ################################################################################
321
322 /**
323 * is_syndicated: Tests whether the current post in a Loop context, or a post
324 * given by ID number, was syndicated by FeedWordPress. Useful for templates
325 * to determine whether or not to retrieve syndication-related meta-data in
326 * displaying a post.
327 *
328 * @param int $id The post to check for syndicated status. Defaults to the current post in a Loop context.
329 * @return bool TRUE if the post's meta-data indicates it was syndicated; FALSE otherwise
330 */
331 function is_syndicated ($id = NULL) {
332 return (strlen(get_syndication_feed_id($id)) > 0);
333 } /* function is_syndicated() */
334
335 function feedwordpress_display_url ($url, $before = 60, $after = 0) {
336 $bits = parse_url($url);
337
338 // Strip out crufty subdomains
339 if (isset($bits['host'])) :
340 $bits['host'] = preg_replace('/^www[0-9]*\./i', '', $bits['host']);
341 endif;
342
343 // Reassemble bit-by-bit with minimum of crufty elements
344 $url = (isset($bits['user'])?$bits['user'].'@':'')
345 .(isset($bits['host'])?$bits['host']:'')
346 .(isset($bits['path'])?$bits['path']:'')
347 .(isset($uri_bits['port'])?':'.$uri_bits['port']:'')
348 .(isset($bits['query'])?'?'.$bits['query']:'');
349
350 if (strlen($url) > ($before+$after)) :
351 $url = substr($url, 0, $before).'…'.substr($url, 0 - $after, $after);
352 endif;
353
354 return $url;
355 } /* feedwordpress_display_url () */
356
357 function get_syndication_source_property ($original, $id, $local, $remote = NULL) {
358 $ret = NULL;
359 if (is_null($original)) :
360 $original = FeedWordPress::use_aggregator_source_data();
361 endif;
362
363 if (is_null($remote)) :
364 $remote = $local . '_original';
365 endif;
366
367 $vals = ($original ? get_post_custom_values($remote, $id) : array());
368 if (count($vals) < 1) :
369 $vals = get_post_custom_values($local, $id);
370 endif;
371
372 if (count($vals) > 0) :
373 $ret = $vals[0];
374 endif;
375 return $ret;
376 } /* function get_syndication_source_property () */
377
378 function the_syndication_source_link ($original = NULL, $id = NULL) { echo get_syndication_source_link($original, $id); }
379 function get_syndication_source_link ($original = NULL, $id = NULL) {
380 return get_syndication_source_property($original, $id, 'syndication_source_uri');
381 } /* function get_syndication_source_link() */
382
383 function the_syndication_source ($original = NULL, $id = NULL) { echo get_syndication_source($original, $id); }
384 function get_syndication_source ($original = NULL, $id = NULL) {
385 $ret = get_syndication_source_property($original, $id, 'syndication_source');
386 if (is_null($ret) or strlen(trim($ret)) == 0) : // Fall back to URL of blog
387 $ret = feedwordpress_display_url(get_syndication_source_link());
388 endif;
389 return $ret;
390 } /* function get_syndication_source() */
391
392 function the_syndication_feed ($original = NULL, $id = NULL) { echo get_syndication_feed($original, $id); }
393 function get_syndication_feed ($original = NULL, $id = NULL) {
394 return get_syndication_source_property($original, $id, 'syndication_feed');
395 } /* function get_syndication_feed() */
396
397 function the_syndication_feed_guid ($original = NULL, $id = NULL) { echo get_syndication_feed_guid($original, $id); }
398 function get_syndication_feed_guid ($original = NULL, $id = NULL) {
399 $ret = get_syndication_source_property($original, $id, 'syndication_source_id');
400 if (is_null($ret) or strlen(trim($ret))==0) : // Fall back to URL of feed
401 $ret = get_syndication_feed();
402 endif;
403 return $ret;
404 } /* function get_syndication_feed_guid () */
405
406 function get_syndication_feed_id ($id = NULL) { list($u) = get_post_custom_values('syndication_feed_id', $id); return $u; }
407 function the_syndication_feed_id ($id = NULL) { echo get_syndication_feed_id($id); }
408
409 $feedwordpress_linkcache = array (); // only load links from database once
410 function get_syndication_feed_object ($id = NULL) {
411 global $feedwordpress_linkcache;
412
413 $link = NULL;
414
415 $feed_id = get_syndication_feed_id($id);
416 if (strlen($feed_id) > 0):
417 if (isset($feedwordpress_linkcache[$feed_id])) :
418 $link = $feedwordpress_linkcache[$feed_id];
419 else :
420 $link = new SyndicatedLink($feed_id);
421 $feedwordpress_linkcache[$feed_id] = $link;
422 endif;
423 endif;
424 return $link;
425 }
426
427 function get_feed_meta ($key, $id = NULL) {
428 $ret = NULL;
429
430 $link = get_syndication_feed_object($id);
431 if (is_object($link) and isset($link->settings[$key])) :
432 $ret = $link->settings[$key];
433 endif;
434 return $ret;
435 } /* get_feed_meta() */
436
437 function get_syndication_permalink ($id = NULL) {
438 list($u) = get_post_custom_values('syndication_permalink', $id); return $u;
439 }
440 function the_syndication_permalink ($id = NULL) {
441 echo get_syndication_permalink($id);
442 }
443
444 /**
445 * get_local_permalink: returns a string containing the internal permalink
446 * for a post (whether syndicated or not) on your local WordPress installation.
447 * This may be useful if you want permalinks to point to the original source of
448 * an article for most purposes, but want to retrieve a URL for the local
449 * representation of the post for one or two limited purposes (for example,
450 * linking to a comments page on your local aggregator site).
451 *
452 * @param $id The numerical ID of the post to get the permalink for. If empty,
453 * defaults to the current post in a Loop context.
454 * @return string The URL of the local permalink for this post.
455 *
456 * @uses get_permalink()
457 * @global $feedwordpress_the_original_permalink
458 *
459 * @since 2010.0217
460 */
461 function get_local_permalink ($id = NULL) {
462 global $feedwordpress_the_original_permalink;
463
464 // get permalink, and thus activate filter and force global to be filled
465 // with original URL.
466 $url = get_permalink($id);
467 return $feedwordpress_the_original_permalink;
468 } /* get_local_permalink() */
469
470 /**
471 * the_original_permalink: displays the contents of get_original_permalink()
472 *
473 * @param $id The numerical ID of the post to get the permalink for. If empty,
474 * defaults to the current post in a Loop context.
475 *
476 * @uses get_local_permalinks()
477 * @uses apply_filters
478 *
479 * @since 2010.0217
480 */
481 function the_local_permalink ($id = NULL) {
482 print apply_filters('the_permalink', get_local_permalink($id));
483 } /* function the_local_permalink() */
484
485 ################################################################################
486 ## FILTERS: syndication-aware handling of post data for templates and feeds ####
487 ################################################################################
488
489 $feedwordpress_the_syndicated_content = NULL;
490 $feedwordpress_the_original_permalink = NULL;
491
492 function feedwordpress_preserve_syndicated_content ($text) {
493 global $feedwordpress_the_syndicated_content;
494
495 $globalExpose = (get_option('feedwordpress_formatting_filters') == 'yes');
496 $localExpose = get_post_custom_values('_feedwordpress_formatting_filters');
497 $expose = ($globalExpose or ((count($localExpose) > 0) and $localExpose[0]));
498
499 if ( is_syndicated() and !$expose ) :
500 $feedwordpress_the_syndicated_content = $text;
501 else :
502 $feedwordpress_the_syndicated_content = NULL;
503 endif;
504 return $text;
505 }
506
507 function feedwordpress_restore_syndicated_content ($text) {
508 global $feedwordpress_the_syndicated_content;
509
510 if ( !is_null($feedwordpress_the_syndicated_content) ) :
511 $text = $feedwordpress_the_syndicated_content;
512 endif;
513
514 return $text;
515 }
516
517 function feedwordpress_item_feed_data () {
518 // In a post context....
519 if (is_syndicated()) :
520 ?>
521 <source>
522 <title><?php print htmlspecialchars(get_syndication_source()); ?></title>
523 <link rel="alternate" type="text/html" href="<?php print htmlspecialchars(get_syndication_source_link()); ?>" />
524 <link rel="self" href="<?php print htmlspecialchars(get_syndication_feed()); ?>" />
525 <?php
526 $id = get_syndication_feed_guid();
527 if (strlen($id) > 0) :
528 ?>
529 <id><?php print htmlspecialchars($id); ?></id>
530 <?php
531 endif;
532 $updated = get_feed_meta('feed/updated');
533 if (strlen($updated) > 0) : ?>
534 <updated><?php print $updated; ?></updated>
535 <?php
536 endif;
537 ?>
538 </source>
539 <?php
540 endif;
541 }
542
543 /**
544 * syndication_permalink: Allow WordPress to use the original remote URL of
545 * syndicated posts as their permalink. Can be turned on or off by by setting in
546 * Syndication => Posts & Links. Saves the old internal permalink in a global
547 * variable for later use.
548 *
549 * @param string $permalink The internal permalink
550 * @return string The new permalink. Same as the old if the post is not
551 * syndicated, or if FWP is set to use internal permalinks, or if the post
552 * was syndicated, but didn't have a proper permalink recorded.
553 *
554 * @uses SyndicatedLink::setting()
555 * @uses get_syndication_permalink()
556 * @uses get_syndication_feed_object()
557 * @uses url_to_postid()
558 * @global $id
559 * @global $feedwordpress_the_original_permalink
560 */
561 function syndication_permalink ($permalink = '', $post = null, $leavename = false) {
562 global $id;
563 global $feedwordpress_the_original_permalink;
564
565 // Save the local permalink in case we need to retrieve it later.
566 $feedwordpress_the_original_permalink = $permalink;
567
568 if (is_object($post) and isset($post->ID) and !empty($post->ID)) :
569 // Use the post ID we've been provided with.
570 $postId = $post->ID;
571 elseif (is_string($permalink) and strlen($permalink) > 0) :
572 // Map this permalink to a post ID so we can get the correct
573 // permalink even outside of the Post Loop. Props Björn.
574 $postId = url_to_postid($permalink);
575 else :
576 // If the permalink string is empty but Post Loop context
577 // provides an id.
578 $postId = $id;
579 endif;
580
581 $munge = false;
582 $link = get_syndication_feed_object($postId);
583 if (is_object($link)) :
584 $munge = ($link->setting('munge permalink', 'munge_permalink', 'yes') != 'no');
585 endif;
586
587 if ($munge):
588 $uri = get_syndication_permalink($postId);
589 $permalink = ((strlen($uri) > 0) ? $uri : $permalink);
590 endif;
591 return $permalink;
592 } /* function syndication_permalink () */
593
594 /**
595 * syndication_permalink_escaped: Escape XML special characters in syndicated
596 * permalinks when used in feed contexts and HTML display contexts.
597 *
598 * @param string $permalink
599 * @return string
600 *
601 * @uses is_syndicated()
602 * @uses FeedWordPress::munge_permalinks()
603 *
604 */
605 function syndication_permalink_escaped ($permalink) {
606 /* FIXME: This should review link settings not just global settings */
607 if (is_syndicated() and FeedWordPress::munge_permalinks()) :
608 // This is a foreign link; WordPress can't vouch for its not
609 // having any entities that need to be &-escaped. So we'll do
610 // it here.
611 $permalink = esc_html($permalink);
612 endif;
613 return $permalink;
614 } /* function syndication_permalink_escaped() */
615
616 /**
617 * syndication_comments_feed_link: Escape XML special characters in comments
618 * feed links
619 *
620 * @param string $link
621 * @return string
622 *
623 * @uses is_syndicated()
624 * @uses FeedWordPress::munge_permalinks()
625 */
626 function syndication_comments_feed_link ($link) {
627 global $feedwordpress_the_original_permalink, $id;
628
629 if (is_syndicated() and FeedWordPress::munge_permalinks()) :
630 // If the source post provided a comment feed URL using
631 // wfw:commentRss or atom:link/@rel="replies" we can make use of
632 // that value here.
633 $source = get_syndication_feed_object();
634 $replacement = NULL;
635 if ($source->setting('munge comments feed links', 'munge_comments_feed_links', 'yes') != 'no') :
636 $commentFeeds = get_post_custom_values('wfw:commentRSS');
637 if (
638 is_array($commentFeeds)
639 and (count($commentFeeds) > 0)
640 and (strlen($commentFeeds[0]) > 0)
641 ) :
642 $replacement = $commentFeeds[0];
643
644 // This is a foreign link; WordPress can't vouch for its not
645 // having any entities that need to be &-escaped. So we'll do it
646 // here.
647 $replacement = esc_html($replacement);
648 endif;
649 endif;
650
651 if (is_null($replacement)) :
652 // Q: How can we get the proper feed format, since the
653 // format is, stupidly, not passed to the filter?
654 // A: Kludge kludge kludge kludge!
655 $fancy_permalinks = ('' != get_option('permalink_structure'));
656 if ($fancy_permalinks) :
657 preg_match('|/feed(/([^/]+))?/?$|', $link, $ref);
658
659 $format = (isset($ref[2]) ? $ref[2] : '');
660 if (strlen($format) == 0) : $format = get_default_feed(); endif;
661
662 $replacement = trailingslashit($feedwordpress_the_original_permalink) . 'feed';
663 if ($format != get_default_feed()) :
664 $replacement .= '/'.$format;
665 endif;
666 $replacement = user_trailingslashit($replacement, 'single_feed');
667 else :
668 // No fancy permalinks = no problem
669 // WordPress doesn't call get_permalink() to
670 // generate the comment feed URL, so the
671 // comments feed link is never munged by FWP.
672 endif;
673 endif;
674
675 if (!is_null($replacement)) : $link = $replacement; endif;
676 endif;
677 return $link;
678 } /* function syndication_comments_feed_link() */
679
680 ################################################################################
681 ## ADMIN MENU ADD-ONS: register Dashboard management pages #####################
682 ################################################################################
683
684 function fwp_add_pages () {
685 $menu_cap = FeedWordPress::menu_cap();
686 $settings_cap = FeedWordPress::menu_cap(/*sub=*/ true);
687 $syndicationMenu = FeedWordPress::path('syndication.php');
688
689 add_menu_page(
690 'Syndicated Sites', 'Syndication',
691 $menu_cap,
692 $syndicationMenu,
693 NULL,
694 WP_PLUGIN_URL.'/'.FeedWordPress::path('feedwordpress-tiny.png')
695 );
696
697 do_action('feedwordpress_admin_menu_pre_feeds', $menu_cap, $settings_cap);
698 add_submenu_page(
699 $syndicationMenu, 'Syndicated Feeds & Updates', 'Feeds & Updates',
700 $settings_cap, FeedWordPress::path('feeds-page.php')
701 );
702
703 do_action('feedwordpress_admin_menu_pre_posts', $menu_cap, $settings_cap);
704 add_submenu_page(
705 $syndicationMenu, 'Syndicated Posts & Links', 'Posts & Links',
706 $settings_cap, FeedWordPress::path('posts-page.php')
707 );
708
709 do_action('feedwordpress_admin_menu_pre_authors', $menu_cap, $settings_cap);
710 add_submenu_page(
711 $syndicationMenu, 'Syndicated Authors', 'Authors',
712 $settings_cap, FeedWordPress::path('authors-page.php')
713 );
714
715 do_action('feedwordpress_admin_menu_pre_categories', $menu_cap, $settings_cap);
716 add_submenu_page(
717 $syndicationMenu, 'Categories'.FEEDWORDPRESS_AND_TAGS, 'Categories'.FEEDWORDPRESS_AND_TAGS,
718 $settings_cap, FeedWordPress::path('categories-page.php')
719 );
720
721 do_action('feedwordpress_admin_menu_pre_performance', $menu_cap, $settings_cap);
722 add_submenu_page(
723 $syndicationMenu, 'FeedWordPress Performance', 'Performance',
724 $settings_cap, FeedWordPress::path('performance-page.php')
725 );
726
727 do_action('feedwordpress_admin_menu_pre_diagnostics', $menu_cap, $settings_cap);
728 add_submenu_page(
729 $syndicationMenu, 'FeedWordPress Diagnostics', 'Diagnostics',
730 $settings_cap, FeedWordPress::path('diagnostics-page.php')
731 );
732 } /* function fwp_add_pages () */
733
734 function fwp_check_debug () {
735 // This is a horrible fucking kludge that I have to do because the
736 // admin notice code is triggered before the code that updates the
737 // setting.
738 if (isset($_POST['feedwordpress_debug'])) :
739 $feedwordpress_debug = $_POST['feedwordpress_debug'];
740 else :
741 $feedwordpress_debug = get_option('feedwordpress_debug');
742 endif;
743 if ($feedwordpress_debug==='yes') :
744 ?>
745 <div class="error">
746 <p><strong>FeedWordPress warning.</strong> Debugging mode is <strong>ON</strong>.
747 While it remains on, FeedWordPress displays many diagnostic error messages,
748 warnings, and notices that are ordinarily suppressed, and also turns off all
749 caching of feeds. Use with caution: this setting is absolutely inappropriate
750 for a production server.</p>
751 </div>
752 <?php
753 endif;
754 } /* function fwp_check_debug () */
755
756 ################################################################################
757 ## fwp_hold_pings() and fwp_release_pings(): Outbound XML-RPC ping reform ####
758 ## ... 'coz it's rude to send 500 pings the first time your aggregator runs ####
759 ################################################################################
760
761 $fwp_held_ping = NULL; // NULL: not holding pings yet
762
763 function fwp_hold_pings () {
764 global $fwp_held_ping;
765 if (is_null($fwp_held_ping)):
766 $fwp_held_ping = 0; // 0: ready to hold pings; none yet received
767 endif;
768 }
769
770 function fwp_release_pings () {
771 global $fwp_held_ping;
772 if ($fwp_held_ping):
773 if (function_exists('wp_schedule_single_event')) :
774 wp_schedule_single_event(time(), 'do_pings');
775 else :
776 generic_ping($fwp_held_ping);
777 endif;
778 endif;
779 $fwp_held_ping = NULL; // NULL: not holding pings anymore
780 }
781
782 function fwp_do_pings () {
783 if (!is_null($fwp_held_ping) and $post_id) : // Defer until we're done updating
784 $fwp_held_ping = $post_id;
785 elseif (function_exists('do_all_pings')) :
786 do_all_pings();
787 else :
788 generic_ping($fwp_held_ping);
789 endif;
790 }
791
792 function fwp_publish_post_hook ($post_id) {
793 global $fwp_held_ping;
794
795 if (!is_null($fwp_held_ping)) : // Syndicated post. Don't mark with _pingme
796 if ( defined('XMLRPC_REQUEST') )
797 do_action('xmlrpc_publish_post', $post_id);
798 if ( defined('APP_REQUEST') )
799 do_action('app_publish_post', $post_id);
800
801 if ( defined('WP_IMPORTING') )
802 return;
803
804 // Defer sending out pings until we finish updating
805 $fwp_held_ping = $post_id;
806 else :
807 if (function_exists('_publish_post_hook')) : // WordPress 2.3
808 _publish_post_hook($post_id);
809 endif;
810 endif;
811 }
812
813 function feedwordpress_add_post_edit_controls () {
814 add_meta_box('feedwordpress-post-controls', __('Syndication'), 'feedwordpress_post_edit_controls', 'post', 'side', 'high');
815 if (FeedWordPress::diagnostic_on('syndicated_posts:static_meta_data')) :
816 $GLOBALS['inspectPostMeta'] = new InspectPostMeta;
817 endif;
818 } // function FeedWordPress::postEditControls
819
820 function feedwordpress_post_edit_controls () {
821 global $post;
822
823 $frozen_values = get_post_custom_values('_syndication_freeze_updates', $post->ID);
824 $frozen_post = (count($frozen_values) > 0 and 'yes' == $frozen_values[0]);
825
826 if (is_syndicated($post->ID)) :
827 ?>
828 <p>This is a syndicated post, which originally appeared at
829 <cite><?php print esc_html(get_syndication_source(NULL, $post->ID)); ?></cite>.
830 <a href="<?php print esc_html(get_syndication_permalink($post->ID)); ?>">View original post</a>.</p>
831
832 <p><input type="hidden" name="feedwordpress_noncename" id="feedwordpress_noncename" value="<?php print wp_create_nonce(plugin_basename(__FILE__)); ?>" />
833 <label><input type="checkbox" name="freeze_updates" value="yes" <?php if ($frozen_post) : ?>checked="checked"<?php endif; ?> /> <strong>Manual editing.</strong>
834 If set, FeedWordPress will not overwrite the changes you make manually
835 to this post, if the syndicated content is updated on the
836 feed.</label></p>
837 <?php
838 else :
839 ?>
840 <p>This post was created locally at this website.</p>
841 <?php
842 endif;
843 } // function feedwordpress_post_edit_controls () */
844
845 function feedwordpress_save_post_edit_controls ( $post_id ) {
846 global $post;
847
848 if (!isset($_POST['feedwordpress_noncename']) or !wp_verify_nonce($_POST['feedwordpress_noncename'], plugin_basename(__FILE__))) :
849 return $post_id;
850 endif;
851
852 // Verify if this is an auto save routine. If it is our form has
853 // not been submitted, so we don't want to do anything.
854 if ( defined('DOING_AUTOSAVE') and DOING_AUTOSAVE ) :
855 return $post_id;
856 endif;
857
858 // Check permissions
859 if ( !current_user_can( 'edit_'.$_POST['post_type'], $post_id) ) :
860 return $post_id;
861 endif;
862
863 // OK, we're golden. Now let's save some data.
864 if (isset($_POST['freeze_updates'])) :
865 update_post_meta($post_id, '_syndication_freeze_updates', $_POST['freeze_updates']);
866 $ret = $_POST['freeze_updates'];
867 else :
868 delete_post_meta($post_id, '_syndication_freeze_updates');
869 $ret = NULL;
870 endif;
871
872 return $ret;
873 } // function feedwordpress_save_edit_controls
874
875 ################################################################################
876 ## class FeedWordPress #########################################################
877 ################################################################################
878
879 // class FeedWordPress: handles feed updates and plugs in to the XML-RPC interface
880 class FeedWordPress {
881 var $strip_attrs = array (
882 array('[a-z]+', 'style'),
883 array('[a-z]+', 'target'),
884 );
885 var $uri_attrs = array (
886 array('a', 'href'),
887 array('applet', 'codebase'),
888 array('area', 'href'),
889 array('blockquote', 'cite'),
890 array('body', 'background'),
891 array('del', 'cite'),
892 array('form', 'action'),
893 array('frame', 'longdesc'),
894 array('frame', 'src'),
895 array('iframe', 'longdesc'),
896 array('iframe', 'src'),
897 array('head', 'profile'),
898 array('img', 'longdesc'),
899 array('img', 'src'),
900 array('img', 'usemap'),
901 array('input', 'src'),
902 array('input', 'usemap'),
903 array('ins', 'cite'),
904 array('link', 'href'),
905 array('object', 'classid'),
906 array('object', 'codebase'),
907 array('object', 'data'),
908 array('object', 'usemap'),
909 array('q', 'cite'),
910 array('script', 'src')
911 );
912
913 var $feeds = NULL;
914
915 # function FeedWordPress (): Contructor; retrieve a list of feeds
916 function FeedWordPress () {
917 $this->feeds = array ();
918 $links = FeedWordPress::syndicated_links();
919 if ($links): foreach ($links as $link):
920 $this->feeds[] = new SyndicatedLink($link);
921 endforeach; endif;
922 } // FeedWordPress::FeedWordPress ()
923
924 # function update (): polls for updates on one or more Contributor feeds
925 #
926 # Arguments:
927 # ----------
928 # * $uri (string): either the URI of the feed to poll, the URI of the
929 # (human-readable) website whose feed you want to poll, or NULL.
930 #
931 # If $uri is NULL, then FeedWordPress will poll any feeds that are
932 # ready for polling. It will not poll feeds that are marked as
933 # "Invisible" Links (signifying that the subscription has been
934 # de-activated), or feeds that are not yet stale according to their
935 # TTL setting (which is either set in the feed, or else set
936 # randomly within a window of 30 minutes - 2 hours).
937 #
938 # Returns:
939 # --------
940 # * Normally returns an associative array, with 'new' => the number
941 # of new posts added during the update, and 'updated' => the number
942 # of old posts that were updated during the update. If both numbers
943 # are zero, there was no change since the last poll on that URI.
944 #
945 # * Returns NULL if URI it was passed was not a URI that this
946 # installation of FeedWordPress syndicates.
947 #
948 # Effects:
949 # --------
950 # * One or more feeds are polled for updates
951 #
952 # * If the feed Link does not have a hardcoded name set, its Link
953 # Name is synchronized with the feed's title element
954 #
955 # * If the feed Link does not have a hardcoded URI set, its Link URI
956 # is synchronized with the feed's human-readable link element
957 #
958 # * If the feed Link does not have a hardcoded description set, its
959 # Link Description is synchronized with the feed's description,
960 # tagline, or subtitle element.
961 #
962 # * The time of polling is recorded in the feed's settings, and the
963 # TTL (time until the feed is next available for polling) is set
964 # either from the feed (if it is supplied in the ttl or syndication
965 # module elements) or else from a randomly-generated time window
966 # (between 30 minutes and 2 hours).
967 #
968 # * New posts from the polled feed are added to the WordPress store.
969 #
970 # * Updates to existing posts since the last poll are mirrored in the
971 # WordPress store.
972 #
973 function update ($uri = null, $crash_ts = null) {
974 global $wpdb;
975
976 if (FeedWordPress::needs_upgrade()) : // Will make duplicate posts if we don't hold off
977 return NULL;
978 endif;
979
980 if (!is_null($uri) and $uri != '*') :
981 $uri = trim($uri);
982 else : // Update all
983 update_option('feedwordpress_last_update_all', time());
984 endif;
985
986 do_action('feedwordpress_update', $uri);
987
988 if (is_null($crash_ts)) :
989 $crash_ts = $this->crash_ts();
990 endif;
991
992 // Randomize order for load balancing purposes
993 $feed_set = $this->feeds;
994 shuffle($feed_set);
995
996 $feed_set = apply_filters('feedwordpress_update_feeds', $feed_set, $uri);
997
998 // Loop through and check for new posts
999 $delta = NULL;
1000 foreach ($feed_set as $feed) :
1001 if (!is_null($crash_ts) and (time() > $crash_ts)) : // Check whether we've exceeded the time limit
1002 break;
1003 endif;
1004
1005 $pinged_that = (is_null($uri) or ($uri=='*') or in_array($uri, array($feed->uri(), $feed->homepage())));
1006
1007 if (!is_null($uri)) : // A site-specific ping always updates
1008 $timely = true;
1009 else :
1010 $timely = $feed->stale();
1011 endif;
1012
1013 if ($pinged_that and is_null($delta)) : // If at least one feed was hit for updating...
1014 $delta = array('new' => 0, 'updated' => 0); // ... don't return error condition
1015 endif;
1016
1017 if ($pinged_that and $timely) :
1018 do_action('feedwordpress_check_feed', $feed->settings);
1019 $start_ts = time();
1020 $added = $feed->poll($crash_ts);
1021 do_action('feedwordpress_check_feed_complete', $feed->settings, $added, time() - $start_ts);
1022
1023 if (is_array($added)) : // Success
1024 if (isset($added['new'])) : $delta['new'] += $added['new']; endif;
1025 if (isset($added['updated'])) : $delta['updated'] += $added['updated']; endif;
1026 endif;
1027 endif;
1028 endforeach;
1029
1030 do_action('feedwordpress_update_complete', $delta);
1031
1032 return $delta;
1033 }
1034
1035 function crash_ts ($default = NULL) {
1036 $crash_dt = (int) get_option('feedwordpress_update_time_limit', 0);
1037 if ($crash_dt > 0) :
1038 $crash_ts = time() + $crash_dt;
1039 else :
1040 $crash_ts = $default;
1041 endif;
1042 return $crash_ts;
1043 }
1044
1045 function stale () {
1046 if (get_option('feedwordpress_automatic_updates')) :
1047 // Do our best to avoid possible simultaneous
1048 // updates by getting up-to-the-minute settings.
1049
1050 $last = get_option('feedwordpress_last_update_all');
1051
1052 // If we haven't updated all yet, give it a time window
1053 if (false === $last) :
1054 $ret = false;
1055 update_option('feedwordpress_last_update_all', time());
1056
1057 // Otherwise, check against freshness interval
1058 elseif (is_numeric($last)) : // Expect a timestamp
1059 $freshness = get_option('feedwordpress_freshness');
1060 if (false === $freshness) : // Use default
1061 $freshness = FEEDWORDPRESS_FRESHNESS_INTERVAL;
1062 endif;
1063 $ret = ( (time() - $last) > $freshness);
1064
1065 // This should never happen.
1066 else :
1067 FeedWordPress::critical_bug('FeedWordPress::stale::last', $last, __LINE__, __FILE__);
1068 endif;
1069
1070 else :
1071 $ret = false;
1072 endif;
1073 return $ret;
1074 } // FeedWordPress::stale()
1075
1076 function init () {
1077 $this->clear_cache_magic_url();
1078 $this->update_magic_url();
1079 } /* FeedWordPress::init() */
1080
1081 function dashboard_setup () {
1082 $see_it = FeedWordPress::menu_cap();
1083
1084 if (current_user_can($see_it)) :
1085 // Get the stylesheet
1086 wp_enqueue_style('feedwordpress-elements');
1087
1088 $widget_id = 'feedwordpress_dashboard';
1089 $widget_name = __('Syndicated Sources');
1090 $column = 'side';
1091 $priority = 'core';
1092
1093 // I would love to use wp_add_dashboard_widget() here and save
1094 // myself some trouble. But WP 3 does not yet have any way to
1095 // push a dashboard widget onto the side, or to give it a default
1096 // location.
1097 add_meta_box(
1098 /*id=*/ $widget_id,
1099 /*title=*/ $widget_name,
1100 /*callback=*/ array(&$this, 'dashboard'),
1101 /*page=*/ 'dashboard',
1102 /*context=*/ $column,
1103 /*priority=*/ $priority
1104 );
1105 /*control_callback= array(&$this, 'dashboard_control') */
1106
1107 // This is kind of rude, I know, but the dashboard widget isn't
1108 // worth much if users don't know that it exists, and I don't
1109 // know of any better way to reorder the boxen.
1110 //
1111 // Gleefully ripped off of codex.wordpress.org/Dashboard_Widgets_API
1112
1113 // Globalize the metaboxes array, this holds all the widgets for wp-admin
1114 global $wp_meta_boxes;
1115
1116 // Get the regular dashboard widgets array
1117 // (which has our new widget already but at the end)
1118
1119 $normal_dashboard = $wp_meta_boxes['dashboard'][$column][$priority];
1120
1121 // Backup and delete our new dashbaord widget from the end of the array
1122 if (isset($normal_dashboard[$widget_id])) :
1123 $backup = array();
1124 $backup[$widget_id] = $normal_dashboard[$widget_id];
1125 unset($normal_dashboard[$widget_id]);
1126
1127 // Merge the two arrays together so our widget is at the
1128 // beginning
1129 $sorted_dashboard = array_merge($backup, $normal_dashboard);
1130
1131 // Save the sorted array back into the original metaboxes
1132 $wp_meta_boxes['dashboard'][$column][$priority] = $sorted_dashboard;
1133 endif;
1134 endif;
1135 } /* FeedWordPress::dashboard_setup () */
1136
1137 function dashboard () {
1138 $syndicationPage = new FeedWordPressSyndicationPage(dirname(__FILE__).'/syndication.php');
1139 $syndicationPage->dashboard_box($syndicationPage);
1140 } /* FeedWordPress::dashboard () */
1141
1142 function update_magic_url () {
1143 global $wpdb;
1144
1145 // Explicit update request in the HTTP request (e.g. from a cron job)
1146 if ($this->update_requested()) :
1147 $this->update($this->update_requested_url());
1148
1149 if (FEEDWORDPRESS_DEBUG and count($wpdb->queries) > 0) :
1150 $mysqlTime = 0.0;
1151 $byTime = array();
1152 foreach ($wpdb->queries as $query) :
1153 $time = $query[1] * 1000000.0;
1154 $mysqlTime += $query[1];
1155 if (!isset($byTime[$time])) : $byTime[$time] = array(); endif;
1156 $byTime[$time][] = $query[0]. ' // STACK: ' . $query[2];
1157 endforeach;
1158 krsort($byTime);
1159
1160 foreach ($byTime as $time => $querySet) :
1161 foreach ($querySet as $query) :
1162 print "[".(sprintf('%4.4f', $time/1000.0)) . "ms] $query\n";
1163 endforeach;
1164 endforeach;
1165 echo $this->log_prefix()."$wpdb->num_queries queries. $mysqlTime seconds in MySQL. Total of "; timer_stop(1); print " seconds.";
1166 endif;
1167
1168 debug_out_feedwordpress_footer();
1169
1170 // Magic URL should return nothing but a 200 OK header packet
1171 // when successful.
1172 exit;
1173 endif;
1174 } /* FeedWordPress::magic_update_url () */
1175
1176 function clear_cache_magic_url () {
1177 if ($this->clear_cache_requested()) :
1178 $this->clear_cache();
1179 endif;
1180 } /* FeedWordPress::clear_cache_magic_url() */
1181
1182 function clear_cache_requested () {
1183 return (
1184 isset($_GET['clear_cache'])
1185 and $_GET['clear_cache']
1186 );
1187 } /* FeedWordPress::clear_cache_requested() */
1188
1189 function update_requested () {
1190 return (
1191 isset($_REQUEST['update_feedwordpress'])
1192 and $_REQUEST['update_feedwordpress']
1193 );
1194 } // FeedWordPress::update_requested()
1195
1196 function update_requested_url () {
1197 $ret = null;
1198
1199 if (($_REQUEST['update_feedwordpress']=='*')
1200 or (preg_match('|^http://.*|i', $_REQUEST['update_feedwordpress']))) :
1201 $ret = $_REQUEST['update_feedwordpress'];
1202 endif;
1203
1204 return $ret;
1205 } // FeedWordPress::update_requested_url()
1206
1207 function auto_update () {
1208 if ($this->stale()) :
1209 $this->update();
1210 endif;
1211 } /* FeedWordPress::auto_update () */
1212
1213 function find_link ($uri, $field = 'link_rss') {
1214 global $wpdb;
1215
1216 $unslashed = untrailingslashit($uri);
1217 $slashed = trailingslashit($uri);
1218 $link_id = $wpdb->get_var($wpdb->prepare("
1219 SELECT link_id FROM $wpdb->links WHERE $field IN ('%s', '%s')
1220 LIMIT 1", $unslashed, $slashed
1221 ));
1222
1223 return $link_id;
1224 } /* FeedWordPress::find_link () */
1225
1226 function syndicate_link ($name, $uri, $rss) {
1227 // Get the category ID#
1228 $cat_id = FeedWordPress::link_category_id();
1229 if (!is_wp_error($cat_id)) :
1230 $link_category = array($cat_id);
1231 else :
1232 $link_category = array();
1233 endif;
1234
1235 // WordPress gets cranky if there's no homepage URI
1236 if (!is_string($uri) or strlen($uri)<1) : $uri = $rss; endif;
1237
1238 // Check if this feed URL is already being syndicated.
1239 $link_id = wp_insert_link(array(
1240 "link_id" => FeedWordPress::find_link($rss), // insert if nothing was found; else update
1241 "link_rss" => $rss,
1242 "link_name" => $name,
1243 "link_url" => $uri,
1244 "link_category" => $link_category,
1245 "link_visible" => 'Y', // reactivate if inactivated
1246 ));
1247
1248 return $link_id;
1249 } /* function FeedWordPress::syndicate_link() */
1250
1251 /*static*/ function syndicated_status ($what, $default) {
1252 $ret = get_option("feedwordpress_syndicated_{$what}_status");
1253 if (!$ret) :
1254 $ret = $default;
1255 endif;
1256 return $ret;
1257 } /* FeedWordPress::syndicated_status() */
1258
1259 function on_unfamiliar ($what = 'author') {
1260 switch ($what) :
1261 case 'category' : $suffix = ':category'; break;
1262 case 'post_tag' : $suffix = ':post_tag'; break;
1263 default: $suffix = '';
1264 endswitch;
1265
1266 return get_option('feedwordpress_unfamiliar_'.$what, 'create'.$suffix);
1267 } // function FeedWordPress::on_unfamiliar()
1268
1269 function null_email_set () {
1270 $base = get_option('feedwordpress_null_email_set');
1271
1272 if ($base===false) :
1273 $ret = array('noreply@blogger.com'); // default
1274 else :
1275 $ret = array_map('strtolower',
1276 array_map('trim', explode("\n", $base)));
1277 endif;
1278 $ret = apply_filters('syndicated_item_author_null_email_set', $ret);
1279 return $ret;
1280
1281 } /* FeedWordPress::null_email_set () */
1282
1283 function is_null_email ($email) {
1284 $ret = in_array(strtolower(trim($email)), FeedWordPress::null_email_set());
1285 $ret = apply_filters('syndicated_item_author_is_null_email', $ret, $email);
1286 return $ret;
1287 } /* FeedWordPress::is_null_email () */
1288
1289 function use_aggregator_source_data () {
1290 $ret = get_option('feedwordpress_use_aggregator_source_data');
1291 return apply_filters('syndicated_post_use_aggregator_source_data', ($ret=='yes'));
1292 }
1293
1294 /**
1295 * FeedWordPress::munge_permalinks: check whether or not FeedWordPress
1296 * should rewrite permalinks for syndicated items to reflect their
1297 * original location.
1298 *
1299 * @return bool TRUE if FeedWordPress SHOULD rewrite permalinks; FALSE otherwise
1300 */
1301 /*static*/ function munge_permalinks () {
1302 return (get_option('feedwordpress_munge_permalink', /*default=*/ 'yes') != 'no');
1303 } /* FeedWordPress::munge_permalinks() */
1304
1305 function syndicated_links ($args = array()) {
1306 $contributors = FeedWordPress::link_category_id();
1307 if (!is_wp_error($contributors)) :
1308 $links = get_bookmarks(array_merge(
1309 array("category" => $contributors),
1310 $args
1311 ));
1312 else :
1313 $links = array();
1314 endif;
1315 return $links;
1316 } // function FeedWordPress::syndicated_links()
1317
1318 function link_category_id () {
1319 global $wpdb, $wp_db_version;
1320
1321 $cat_id = get_option('feedwordpress_cat_id');
1322
1323 // If we don't yet have the category ID stored, search by name
1324 if (!$cat_id) :
1325 $cat_id = FeedWordPressCompatibility::link_category_id(DEFAULT_SYNDICATION_CATEGORY);
1326
1327 if ($cat_id) :
1328 // We found it; let's stamp it.
1329 update_option('feedwordpress_cat_id', $cat_id);
1330 endif;
1331
1332 // If we *do* have the category ID stored, verify that it exists
1333 else :
1334 $cat_id = FeedWordPressCompatibility::link_category_id((int) $cat_id, 'cat_id');
1335 endif;
1336
1337 // If we could not find an appropriate link category,
1338 // make a new one for ourselves.
1339 if (!$cat_id) :
1340 $cat_id = FeedWordPressCompatibility::insert_link_category(DEFAULT_SYNDICATION_CATEGORY);
1341 if (!is_wp_error($cat_id)) :
1342 // Stamp it
1343 update_option('feedwordpress_cat_id', $cat_id);
1344 endif;
1345 endif;
1346
1347 return $cat_id;
1348 } // function FeedWordPress::link_category_id()
1349
1350 # Upgrades and maintenance...
1351 function needs_upgrade () {
1352 global $wpdb;
1353 $fwp_db_version = get_option('feedwordpress_version');
1354 $ret = false; // innocent until proven guilty
1355 if (!$fwp_db_version or $fwp_db_version < FEEDWORDPRESS_VERSION) :
1356 // This is an older version or a fresh install. Does it
1357 // require a database upgrade or database initialization?
1358 if ($fwp_db_version <= 0.96) :
1359 // Yes. Check to see whether this is a fresh install or an upgrade.
1360 $syn = $wpdb->get_col("
1361 SELECT post_id
1362 FROM $wpdb->postmeta
1363 WHERE meta_key = 'syndication_feed'
1364 ");
1365 if (count($syn) > 0) : // contains at least one syndicated post
1366 $ret = true;
1367 else : // fresh install; brand it as ours
1368 update_option('feedwordpress_version', FEEDWORDPRESS_VERSION);
1369 endif;
1370 elseif ($fwp_db_version < 2009.0707) :
1371 // We need to clear out any busted AJAX crap
1372 $wpdb->query("
1373 DELETE FROM $wpdb->usermeta
1374 WHERE LOCATE('feedwordpress', meta_key)
1375 AND LOCATE('box', meta_key);
1376 ");
1377
1378 update_option('feedwordpress_version', FEEDWORDPRESS_VERSION);
1379 elseif ($fwp_db_version < 2010.0814) :
1380 // Change in terminology.
1381 if (get_option('feedwordpress_unfamiliar_category', 'create')=='default') :
1382 update_option('feedwordpress_unfamiliar_category', 'null');
1383 endif;
1384 foreach (FeedWordPress::syndicated_links() as $link) :
1385 $sub = new SyndicatedLink($link);
1386
1387 $remap_uf = array(
1388 'default' => 'null',
1389 'filter' => 'null',
1390 'create' => 'create:category',
1391 'tag' => 'create:post_tag'
1392 );
1393 if (isset($sub->settings['unfamiliar category'])) :
1394 if ($sub->settings['unfamiliar category']=='filter') :
1395 $sub->settings['match/filter'] = array('category');
1396 endif;
1397 foreach ($remap_uf as $from => $to) :
1398 if ($sub->settings['unfamiliar category']==$from) :
1399 $sub->settings['unfamiliar category'] = $to;
1400 endif;
1401 endforeach;
1402 endif;
1403
1404 if (isset($sub->settings['add global categories'])) :
1405 $sub->settings['add/category'] = $sub->settings['add global categories'];
1406 unset($sub->settings['add global categories']);
1407 endif;
1408
1409 $sub->save_settings(/*reload=*/ true);
1410 endforeach;
1411 update_option('feedwordpress_version', FEEDWORDPRESS_VERSION);
1412 else :
1413 // No. Just brand it with the new version.
1414 update_option('feedwordpress_version', FEEDWORDPRESS_VERSION);
1415 endif;
1416 endif;
1417 return $ret;
1418 }
1419
1420 function upgrade_database ($from = NULL) {
1421 global $wpdb;
1422
1423 if (is_null($from) or $from <= 0.96) : $from = 0.96; endif;
1424
1425 switch ($from) :
1426 case 0.96:
1427 // Dropping legacy upgrade code. If anyone is still
1428 // using 0.96 and just now decided to upgrade, well, I'm
1429 // sorry about that. You'll just have to cope with a few
1430 // duplicate posts.
1431
1432 // Mark the upgrade as successful.
1433 update_option('feedwordpress_version', FEEDWORDPRESS_VERSION);
1434 endswitch;
1435 echo "<p>Upgrade complete. FeedWordPress is now ready to use again.</p>";
1436 } /* FeedWordPress::upgrade_database() */
1437
1438 function has_guid_index () {
1439 global $wpdb;
1440
1441 $found = false; // Guilty until proven innocent.
1442
1443 $results = $wpdb->get_results("
1444 SHOW INDEXES FROM {$wpdb->posts}
1445 ");
1446 if ($results) :
1447 foreach ($results as $index) :
1448 if (isset($index->Column_name)
1449 and ('guid' == $index->Column_name)) :
1450 $found = true;
1451 endif;
1452 endforeach;
1453 endif;
1454 return $found;
1455 } /* FeedWordPress::has_guid_index () */
1456
1457 function create_guid_index () {
1458 global $wpdb;
1459
1460 $wpdb->query("
1461 CREATE INDEX {$wpdb->posts}_guid_idx ON {$wpdb->posts}(guid)
1462 ");
1463 } /* FeedWordPress::create_guid_index () */
1464
1465 function remove_guid_index () {
1466 global $wpdb;
1467
1468 $wpdb->query("
1469 DROP INDEX {$wpdb->posts}_guid_idx ON {$wpdb->posts}
1470 ");
1471 }
1472
1473 /*static*/ function fetch_timeout () {
1474 return apply_filters(
1475 'feedwordpress_fetch_timeout',
1476 intval(get_option('feedwordpress_fetch_timeout', FEEDWORDPRESS_FETCH_TIMEOUT_DEFAULT))
1477 );
1478 }
1479
1480 /*static*/ function fetch ($url, $params = array()) {
1481 $force_feed = true; // Default
1482
1483 // Allow user to change default feed-fetch timeout with a global setting. Props Erigami Scholey-Fuller <http://www.piepalace.ca/blog/2010/11/feedwordpress-broke-my-heart.html> 'timeout' =>
1484 $timeout = FeedWordPress::fetch_timeout();
1485
1486 if (!is_array($params)) :
1487 $force_feed = $params;
1488 else : // Parameter array
1489 $args = shortcode_atts(array(
1490 'force_feed' => $force_feed,
1491 'timeout' => $timeout
1492 ), $params);
1493
1494 extract($args);
1495 endif;
1496 $timeout = intval($timeout);
1497
1498 $pie_class = apply_filters('feedwordpress_simplepie_class', 'SimplePie');
1499 $cache_class = apply_filters('feedwordpress_cache_class', 'WP_Feed_Cache');
1500 $file_class = apply_filters('feedwordpress_file_class', 'FeedWordPress_File');
1501 $parser_class = apply_filters('feedwordpress_parser_class', 'FeedWordPress_Parser');
1502
1503 $sniffer_class = apply_filters('feedwordpress_sniffer_class', 'FeedWordPress_Content_Type_Sniffer');
1504
1505 $feed = new $pie_class;
1506 $feed->set_feed_url($url);
1507 $feed->set_cache_class($cache_class);
1508 $feed->set_timeout($timeout);
1509
1510 //$feed->set_file_class('WP_SimplePie_File');
1511 $feed->set_content_type_sniffer_class($sniffer_class);
1512 $feed->set_file_class($file_class);
1513 $feed->set_parser_class($parser_class);
1514 $feed->force_feed($force_feed);
1515 $feed->set_cache_duration(FeedWordPress::cache_duration());
1516 $feed->init();
1517 $feed->handle_content_type();
1518
1519 if ($feed->error()) :
1520 $ret = new WP_Error('simplepie-error', $feed->error());
1521 else :
1522 $ret = $feed;
1523 endif;
1524 return $ret;
1525 } /* FeedWordPress::fetch () */
1526
1527 function clear_cache () {
1528 global $wpdb;
1529
1530 // Just in case, clear out any old MagpieRSS cache records.
1531 $magpies = $wpdb->query("
1532 DELETE FROM {$wpdb->options}
1533 WHERE option_name LIKE 'rss_%' AND LENGTH(option_name) > 32
1534 ");
1535
1536 // The WordPress SimplePie module stores its cached feeds as
1537 // transient records in the options table. The data itself is
1538 // stored in `_transient_feed_{md5 of url}` and the last-modified
1539 // timestamp in `_transient_feed_mod_{md5 of url}`. Timeouts for
1540 // these records are stored in `_transient_timeout_feed_{md5}`.
1541 // Since the md5 is always 32 characters in length, the
1542 // option_name is always over 32 characters.
1543 $simplepies = $wpdb->query("
1544 DELETE FROM {$wpdb->options}
1545 WHERE option_name LIKE '_transient%_feed_%' AND LENGTH(option_name) > 32
1546 ");
1547 $simplepies = (int) ($simplepies / 4); // Each transient has 4 rows: the data, the modified timestamp; and the timeouts for each
1548
1549 return ($magpies + $simplepies);
1550 } /* FeedWordPress::clear_cache () */
1551
1552 function cache_duration () {
1553 $duration = NULL;
1554 if (defined('FEEDWORDPRESS_CACHE_AGE')) :
1555 $duration = FEEDWORDPRESS_CACHE_AGE;
1556 endif;
1557 return $duration;
1558 }
1559 function cache_lifetime ($duration) {
1560 // Check for explicit setting of a lifetime duration
1561 if (defined('FEEDWORDPRESS_CACHE_LIFETIME')) :
1562 $duration = FEEDWORDPRESS_CACHE_LIFETIME;
1563
1564 // Fall back to the cache freshness duration
1565 elseif (defined('FEEDWORDPRESS_CACHE_AGE')) :
1566 $duration = FEEDWORDPRESS_CACHE_AGE;
1567 endif;
1568
1569 // Fall back to WordPress default
1570 return $duration;
1571 } /* FeedWordPress::cache_lifetime () */
1572
1573 # Utility functions for handling text settings
1574 function negative ($f, $setting) {
1575 $nego = array ('n', 'no', 'f', 'false');
1576 return (isset($f[$setting]) and in_array(strtolower($f[$setting]), $nego));
1577 }
1578
1579 function affirmative ($f, $setting) {
1580 $affirmo = array ('y', 'yes', 't', 'true', 1);
1581 return (isset($f[$setting]) and in_array(strtolower($f[$setting]), $affirmo));
1582 }
1583
1584 # Internal debugging functions
1585 function critical_bug ($varname, $var, $line, $file = NULL) {
1586 global $wp_version;
1587
1588 if (!is_null($file)) :
1589 $location = "line # ${line} of ".basename($file);
1590 else :
1591 $location = "line # ${line}";
1592 endif;
1593
1594 print '<p><strong>Critical error:</strong> There may be a bug in FeedWordPress. Please <a href="'.FEEDWORDPRESS_AUTHOR_CONTACT.'">contact the author</a> and paste the following information into your e-mail:</p>';
1595 print "\n<plaintext>";
1596 print "Triggered at ${location}\n";
1597 print "FeedWordPress: ".FEEDWORDPRESS_VERSION."\n";
1598 print "WordPress: {$wp_version}\n";
1599 print "PHP: ".phpversion()."\n";
1600 print "Error data: ";
1601 print $varname.": "; var_dump($var); echo "\n";
1602 die;
1603 }
1604
1605 function noncritical_bug ($varname, $var, $line, $file = NULL) {
1606 if (FEEDWORDPRESS_DEBUG) : // halt only when we are doing debugging
1607 FeedWordPress::critical_bug($varname, $var, $line, $file);
1608 endif;
1609 }
1610
1611 function val ($v, $no_newlines = false) {
1612 ob_start();
1613 var_dump($v);
1614 $out = ob_get_contents(); ob_end_clean();
1615
1616 if ($no_newlines) :
1617 $out = preg_replace('/\s+/', " ", $out);
1618 endif;
1619 return $out;
1620 } /* FeedWordPress::val () */
1621
1622 function diagnostic_on ($level) {
1623 $show = get_option('feedwordpress_diagnostics_show', array());
1624 return (in_array($level, $show));
1625 } /* FeedWordPress::diagnostic_on () */
1626
1627 function diagnostic ($level, $out, $persist = NULL, $since = NULL, $mostRecent = NULL) {
1628 global $feedwordpress_admin_footer;
1629
1630 $output = get_option('feedwordpress_diagnostics_output', array());
1631 $dlog = get_option('feedwordpress_diagnostics_log', array());
1632
1633 $diagnostic_nesting = count(explode(":", $level));
1634
1635 if (FeedWordPress::diagnostic_on($level)) :
1636 foreach ($output as $method) :
1637 switch ($method) :
1638 case 'echo' :
1639 if (!FeedWordPress::update_requested()) :
1640 echo "<div><pre><strong>Diag".str_repeat('====', $diagnostic_nesting-1).'|</strong> '.$out."</pre></div>";
1641 endif;
1642 break;
1643 case 'echo_in_cronjob' :
1644 if (FeedWordPress::update_requested()) :
1645 echo FeedWordPress::log_prefix()." ".$out."\n";
1646 endif;
1647 break;
1648 case 'admin_footer' :
1649 $feedwordpress_admin_footer[] = $out;
1650 break;
1651 case 'error_log' :
1652 error_log(FeedWordPress::log_prefix().' '.$out);
1653 break;
1654 case 'email' :
1655 if (is_null($persist)) :
1656 $sect = 'occurrent';
1657 $hook = (isset($dlog['mesg'][$sect]) ? count($dlog['mesg'][$sect]) : 0);
1658 $line = array("Time" => time(), "Message" => $out);
1659 else :
1660 $sect = 'persistent';
1661 $hook = md5($level."\n".$persist);
1662 $line = array("Since" => $since, "Message" => $out, "Most Recent" => $mostRecent);
1663 endif;
1664
1665 if (!isset($dlog['mesg'])) : $dlog['mesg'] = array(); endif;
1666 if (!isset($dlog['mesg'][$sect])) : $dlog['mesg'][$sect] = array(); endif;
1667
1668 $dlog['mesg'][$sect][$hook] = $line;
1669 endswitch;
1670 endforeach;
1671 endif;
1672
1673 update_option('feedwordpress_diagnostics_log', $dlog);
1674 } /* FeedWordPress::diagnostic () */
1675
1676 function email_diagnostic_log () {
1677 $dlog = get_option('feedwordpress_diagnostics_log', array());
1678
1679 if (isset($dlog['schedule']) and isset($dlog['schedule']['last'])) :
1680 if (time() > ($dlog['schedule']['last'] + $dlog['schedule']['freq'])) :
1681 // No news is good news; only send if
1682 // there are some messages to send.
1683 $body = NULL;
1684 foreach ($dlog['mesg'] as $sect => $mesgs) :
1685 if (count($mesgs) > 0) :
1686 if (is_null($body)) : $body = ''; endif;
1687
1688 $paradigm = reset($mesgs);
1689 $body .= "<h2>".ucfirst($sect)." issues</h2>\n"
1690 ."<table>\n"
1691 ."<thead><tr>\n";
1692 foreach ($paradigm as $col => $value) :
1693 $body .= '<th scope="col">'.$col."</th>\n";
1694 endforeach;
1695 $body .= "</tr></thead>\n"
1696 ."<tbody>\n";
1697
1698 foreach ($mesgs as $line) :
1699 $body .= "<tr>\n";
1700 foreach ($line as $col => $cell) :
1701 if (is_numeric($cell)) :
1702 $cell = date('j-M-y, h:i a', $cell);
1703 endif;
1704 $class = strtolower(preg_replace('/\s+/', '-', $col));
1705 $body .= "<td class=\"$class\">${cell}</td>";
1706 endforeach;
1707 $body .= "</tr>\n";
1708 endforeach;
1709
1710 $body .= "</tbody>\n</table>\n\n";
1711 endif;
1712 endforeach;
1713
1714 if (!is_null($body)) :
1715 $home = feedwordpress_display_url(get_bloginfo('url'));
1716 $subj = $home . " syndication issues for ".date('j-M-y', time());
1717 $agent = 'FeedWordPress '.FEEDWORDPRESS_VERSION;
1718 $body = <<<EOMAIL
1719 <html>
1720 <head>
1721 <title>$subj</title>
1722 <style type="text/css">
1723 body { background-color: white; color: black; }
1724 table { width: 100%; border: 1px solid black; }
1725 table thead tr th { background-color: #ff7700; color: white; border-bottom: 1px solid black; }
1726 table thead tr { border-bottom: 1px solid black; }
1727 table tr { vertical-align: top; }
1728 table .since { width: 20%; }
1729 table .time { width: 20%; }
1730 table .most-recently { width: 20%; }
1731 table .message { width: auto; }
1732 </style>
1733 </head>
1734 <body>
1735 <h1>Syndication Issues encountered by $agent on $home</h1>
1736 $body
1737 </body>
1738 </html>
1739
1740 EOMAIL;
1741
1742 $ded = get_option('feedwordpress_diagnostics_email_destination', 'admins');
1743
1744 // e-mail address
1745 if (preg_match('/^mailto:(.*)$/', $ded, $ref)) :
1746 $recipients = array($ref[1]);
1747
1748 // userid
1749 elseif (preg_match('/^user:(.*)$/', $ded, $ref)) :
1750 $userdata = get_userdata((int) $ref[1]);
1751 $recipients = array($userdata->user_email);
1752
1753 // admins
1754 else :
1755 $recipients = FeedWordPressDiagnostic::admin_emails();
1756 endif;
1757
1758 foreach ($recipients as $email) :
1759 add_filter('wp_mail_content_type', array('FeedWordPress', 'allow_html_mail'));
1760 wp_mail($email, $subj, $body);
1761 remove_filter('wp_mail_content_type', array('FeedWordPress', 'allow_html_mail'));
1762 endforeach;
1763 endif;
1764
1765 // Clear the logs
1766 $dlog['mesg']['persistent'] = array();
1767 $dlog['mesg']['occurrent'] = array();
1768
1769 // Set schedule for next update
1770 $dlog['schedule']['last'] = time();
1771 endif;
1772 else :
1773 $dlog['schedule'] = array(
1774 'freq' => 24 /*hr*/ * 60 /*min*/ * 60 /*s*/,
1775 'last' => time(),
1776 );
1777 endif;
1778
1779 update_option('feedwordpress_diagnostics_log', $dlog);
1780 } /* FeedWordPress::email_diagnostic_log () */
1781
1782 function allow_html_mail () {
1783 return 'text/html';
1784 } /* FeedWordPress::allow_html_mail () */
1785
1786 function admin_footer () {
1787 global $feedwordpress_admin_footer;
1788 foreach ($feedwordpress_admin_footer as $line) :
1789 echo '<div><pre>'.$line.'</pre></div>';
1790 endforeach;
1791 } /* FeedWordPress::admin_footer () */
1792
1793 function log_prefix ($date = false) {
1794 $home = get_bloginfo('url');
1795 $prefix = '['.feedwordpress_display_url($home).'] [feedwordpress] ';
1796 if ($date) :
1797 $prefix = "[".date('Y-m-d H:i:s')."]".$prefix;
1798 endif;
1799 return $prefix;
1800 } /* FeedWordPress::log_prefix () */
1801
1802 function menu_cap ($sub = false) {
1803 if ($sub) :
1804 $cap = apply_filters('feedwordpress_menu_settings_capacity', 'manage_options');
1805 else :
1806 $cap = apply_filters('feedwordpress_menu_main_capacity', 'manage_links');
1807 endif;
1808 return $cap;
1809 } /* FeedWordPress::menu_cap () */
1810
1811 function path ($filename = '') {
1812 global $fwp_path;
1813
1814 $path = $fwp_path;
1815 if (strlen($filename) > 0) :
1816 $path .= '/'.$filename;
1817 endif;
1818 return $path;
1819 }
1820
1821 function param ($key, $type = 'REQUEST', $default = NULL) {
1822 $where = '_'.strtoupper($type);
1823 $ret = $default;
1824 if (isset($GLOBALS[$where]) and is_array($GLOBALS[$where])) :
1825 if (isset($GLOBALS[$where][$key])) :
1826 $ret = $GLOBALS[$where][$key];
1827 if (get_magic_quotes_gpc()) :
1828 $ret = stripslashes_deep($ret);
1829 endif;
1830 endif;
1831 endif;
1832 return $ret;
1833 }
1834 function post ($key, $default = NULL) {
1835 return FeedWordPress::param($key, 'POST');
1836 }
1837 } // class FeedWordPress
1838
1839 class FeedWordPress_File extends WP_SimplePie_File {
1840 function FeedWordPress_File ($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) {
1841 WP_SimplePie_File::WP_SimplePie_File($url, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
1842
1843 // SimplePie makes a strongly typed check against integers with
1844 // this, but WordPress puts a string in. Which causes caching
1845 // to break and fall on its ass when SimplePie is getting a 304,
1846 // but doesn't realize it because this member is "304" instead.
1847 $this->status_code = (int) $this->status_code;
1848 }
1849 } /* class FeedWordPress_File () */
1850
1851 class FeedWordPress_Parser extends SimplePie_Parser {
1852 function parse (&$data, $encoding) {
1853 // Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
1854 if (strtoupper($encoding) === 'US-ASCII')
1855 {
1856 $this->encoding = 'UTF-8';
1857 }
1858 else
1859 {
1860 $this->encoding = $encoding;
1861 }
1862
1863 // Strip BOM:
1864 // UTF-32 Big Endian BOM
1865 if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
1866 {
1867 $data = substr($data, 4);
1868 }
1869 // UTF-32 Little Endian BOM
1870 elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
1871 {
1872 $data = substr($data, 4);
1873 }
1874 // UTF-16 Big Endian BOM
1875 elseif (substr($data, 0, 2) === "\xFE\xFF")
1876 {
1877 $data = substr($data, 2);
1878 }
1879 // UTF-16 Little Endian BOM
1880 elseif (substr($data, 0, 2) === "\xFF\xFE")
1881 {
1882 $data = substr($data, 2);
1883 }
1884 // UTF-8 BOM
1885 elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
1886 {
1887 $data = substr($data, 3);
1888 }
1889
1890 if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false)
1891 {
1892 $declaration =& new SimplePie_XML_Declaration_Parser(substr($data, 5, $pos - 5));
1893 if ($declaration->parse())
1894 {
1895 $data = substr($data, $pos + 2);
1896 $data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
1897 }
1898 else
1899 {
1900 $this->error_string = 'SimplePie bug! Please report this!';
1901 return false;
1902 }
1903 }
1904
1905 $return = true;
1906
1907 static $xml_is_sane = null;
1908 if ($xml_is_sane === null)
1909 {
1910 $parser_check = xml_parser_create();
1911 xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
1912 xml_parser_free($parser_check);
1913 $xml_is_sane = isset($values[0]['value']);
1914 }
1915
1916 // Create the parser
1917 if ($xml_is_sane)
1918 {
1919 $xml = xml_parser_create_ns($this->encoding, $this->separator);
1920 xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
1921 xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
1922 xml_set_object($xml, $this);
1923 xml_set_character_data_handler($xml, 'cdata');
1924 xml_set_element_handler($xml, 'tag_open', 'tag_close');
1925 xml_set_start_namespace_decl_handler($xml, 'start_xmlns');
1926
1927 // Parse!
1928 if (!xml_parse($xml, $data, true))
1929 {
1930 $this->error_code = xml_get_error_code($xml);
1931 $this->error_string = xml_error_string($this->error_code);
1932 $return = false;
1933 }
1934
1935 $this->current_line = xml_get_current_line_number($xml);
1936 $this->current_column = xml_get_current_column_number($xml);
1937 $this->current_byte = xml_get_current_byte_index($xml);
1938 xml_parser_free($xml);
1939
1940 return $return;
1941 }
1942 else
1943 {
1944 libxml_clear_errors();
1945 $xml =& new XMLReader();
1946 $xml->xml($data);
1947 while (@$xml->read())
1948 {
1949 switch ($xml->nodeType)
1950 {
1951
1952 case constant('XMLReader::END_ELEMENT'):
1953 if ($xml->namespaceURI !== '')
1954 {
1955 $tagName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
1956 }
1957 else
1958 {
1959 $tagName = $xml->localName;
1960 }
1961 $this->tag_close(null, $tagName);
1962 break;
1963 case constant('XMLReader::ELEMENT'):
1964 $empty = $xml->isEmptyElement;
1965 if ($xml->namespaceURI !== '')
1966 {
1967 $tagName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
1968 }
1969 else
1970 {
1971 $tagName = $xml->localName;
1972 }
1973 $attributes = array();
1974 while ($xml->moveToNextAttribute())
1975 {
1976 if ($xml->namespaceURI !== '')
1977 {
1978 $attrName = "{$xml->namespaceURI}{$this->separator}{$xml->localName}";
1979 }
1980 else
1981 {
1982 $attrName = $xml->localName;
1983 }
1984 $attributes[$attrName] = $xml->value;
1985 }
1986
1987 foreach ($attributes as $attr => $value) :
1988 list($ns, $local) = $this->split_ns($attr);
1989 if ($ns=='http://www.w3.org/2000/xmlns/') :
1990 if ('xmlns' == $local) : $local = false; endif;
1991 $this->start_xmlns(null, $local, $value);
1992 endif;
1993 endforeach;
1994
1995 $this->tag_open(null, $tagName, $attributes);
1996 if ($empty)
1997 {
1998 $this->tag_close(null, $tagName);
1999 }
2000 break;
2001 case constant('XMLReader::TEXT'):
2002
2003 case constant('XMLReader::CDATA'):
2004 $this->cdata(null, $xml->value);
2005 break;
2006 }
2007 }
2008 if ($error = libxml_get_last_error())
2009 {
2010 $this->error_code = $error->code;
2011 $this->error_string = $error->message;
2012 $this->current_line = $error->line;
2013 $this->current_column = $error->column;
2014 return false;
2015 }
2016 else
2017 {
2018 return true;
2019 }
2020 }
2021 } /* FeedWordPress_Parser::parse() */
2022
2023 var $xmlns_stack = array();
2024 var $xmlns_current = array();
2025 function tag_open ($parser, $tag, $attributes) {
2026 $ret = parent::tag_open($parser, $tag, $attributes);
2027 if ($this->current_xhtml_construct < 0) :
2028 $this->data['xmlns'] = $this->xmlns_current;
2029 $this->xmlns_stack[] = $this->xmlns_current;
2030 endif;
2031 return $ret;
2032 }
2033
2034 function tag_close($parser, $tag) {
2035 if ($this->current_xhtml_construct < 0) :
2036 $this->xmlns_current = array_pop($this->xmlns_stack);
2037 endif;
2038 $ret = parent::tag_close($parser, $tag);
2039 return $ret;
2040 }
2041
2042 function start_xmlns ($parser, $prefix, $uri) {
2043 if (!$prefix) :
2044 $prefix = '';
2045 endif;
2046 if ($this->current_xhtml_construct < 0) :
2047 $this->xmlns_current[$prefix] = $uri;
2048 endif;
2049 return true;
2050 } /* FeedWordPress_Parser::start_xmlns() */
2051 }
2052
2053 $feedwordpress_admin_footer = array();
2054
2055 ################################################################################
2056 ## XML-RPC HOOKS: accept XML-RPC update pings from Contributors ################
2057 ################################################################################
2058
2059 class FeedWordPressRPC {
2060 function FeedWordPressRPC () {
2061 add_filter('xmlrpc_methods', array(&$this, 'xmlrpc_methods'));
2062 }
2063
2064 function xmlrpc_methods ($args = array()) {
2065 $args['weblogUpdates.ping'] = array(&$this, 'ping');
2066 $args['feedwordpress.subscribe'] = array(&$this, 'subscribe');
2067 $args['feedwordpress.deactivate'] = array(&$this, 'deactivate');
2068 $args['feedwordpress.delete'] = array(&$this, 'delete');
2069 $args['feedwordpress.nuke'] = array(&$this, 'nuke');
2070 return $args;
2071 }
2072
2073 function ping ($args) {
2074 global $feedwordpress;
2075
2076 $delta = @$feedwordpress->update($args[1]);
2077 if (is_null($delta)):
2078 return array('flerror' => true, 'message' => "Sorry. I don't syndicate <$args[1]>.");
2079 else:
2080 $mesg = array();
2081 if (isset($delta['new'])) { $mesg[] = ' '.$delta['new'].' new posts were syndicated'; }
2082 if (isset($delta['updated'])) { $mesg[] = ' '.$delta['updated'].' existing posts were updated'; }
2083
2084 return array('flerror' => false, 'message' => "Thanks for the ping.".implode(' and', $mesg));
2085 endif;
2086 }
2087
2088 function validate (&$args) {
2089 global $wp_xmlrpc_server;
2090
2091 // First two params are username/password
2092 $username = $wp_xmlrpc_server->escape(array_shift($args));
2093 $password = $wp_xmlrpc_server->escape(array_shift($args));
2094
2095 $ret = array();
2096 if ( !$user = $wp_xmlrpc_server->login($username, $password) ) :
2097 $ret = $wp_xmlrpc_server->error;
2098 elseif (!current_user_can('manage_links')) :
2099 $ret = new IXR_Error(401, 'Sorry, you cannot change the subscription list.');
2100 endif;
2101 return $ret;
2102 }
2103
2104 function subscribe ($args) {
2105 $ret = $this->validate($args);
2106 if (is_array($ret)) : // Success
2107 // The remaining params are feed URLs
2108 foreach ($args as $arg) :
2109 $finder = new FeedFinder($arg, /*verify=*/ false, /*fallbacks=*/ 1);
2110 $feeds = array_values(array_unique($finder->find()));
2111
2112 if (count($feeds) > 0) :
2113 $link_id = FeedWordPress::syndicate_link(
2114 /*title=*/ feedwordpress_display_url($feeds[0]),
2115 /*homepage=*/ $feeds[0],
2116 /*feed=*/ $feeds[0]
2117 );
2118 $ret[] = array(
2119 'added',
2120 $feeds[0],
2121 $arg,
2122 );
2123 else :
2124 $ret[] = array(
2125 'error',
2126 $arg
2127 );
2128 endif;
2129 endforeach;
2130 endif;
2131 return $ret;
2132 } /* FeedWordPressRPC::subscribe () */
2133
2134 function unsubscribe ($method, $args) {
2135 $ret = $this->validate($args);
2136 if (is_array($ret)) : // Success
2137 // The remaining params are feed URLs
2138 foreach ($args as $arg) :
2139 $link_id = FeedWordPress::find_link($arg);
2140
2141 if (!$link_id) :
2142 $link_id = FeedWordPress::find_link($arg, 'link_url');
2143 endif;
2144
2145 if ($link_id) :
2146 $link = new SyndicatedLink($link_id);
2147
2148 $link->{$method}();
2149 $ret[] = array(
2150 'deactivated',
2151 $arg,
2152 );
2153 else :
2154 $ret[] = array(
2155 'error',
2156 $arg,
2157 );
2158 endif;
2159 endforeach;
2160 endif;
2161 return $ret;
2162 } /* FeedWordPress::unsubscribe () */
2163
2164 function deactivate ($args) {
2165 return $this->unsubscribe('deactivate', $args);
2166 } /* FeedWordPressRPC::deactivate () */
2167
2168 function delete ($args) {
2169 return $this->unsubscribe('delete', $args);
2170 } /* FeedWordPressRPC::delete () */
2171
2172 function nuke ($args) {
2173 return $this->unsubscribe('nuke', $args);
2174 } /* FeedWordPressRPC::nuke () */
2175 } /* class FeedWordPressRPC */
2176
2177 // take your best guess at the realname and e-mail, given a string
2178 define('FWP_REGEX_EMAIL_ADDY', '([^@"(<\s]+@[^"@(<\s]+\.[^"@(<\s]+)');
2179 define('FWP_REGEX_EMAIL_NAME', '("([^"]*)"|([^"<(]+\S))');
2180 define('FWP_REGEX_EMAIL_POSTFIX_NAME', '/^\s*'.FWP_REGEX_EMAIL_ADDY."\s+\(".FWP_REGEX_EMAIL_NAME.'\)\s*$/');
2181 define('FWP_REGEX_EMAIL_PREFIX_NAME', '/^\s*'.FWP_REGEX_EMAIL_NAME.'\s*<'.FWP_REGEX_EMAIL_ADDY.'>\s*$/');
2182 define('FWP_REGEX_EMAIL_JUST_ADDY', '/^\s*'.FWP_REGEX_EMAIL_ADDY.'\s*$/');
2183 define('FWP_REGEX_EMAIL_JUST_NAME', '/^\s*'.FWP_REGEX_EMAIL_NAME.'\s*$/');
2184
2185 function parse_email_with_realname ($email) {
2186 if (preg_match(FWP_REGEX_EMAIL_POSTFIX_NAME, $email, $matches)) :
2187 ($ret['name'] = $matches[3]) or ($ret['name'] = $matches[2]);
2188 $ret['email'] = $matches[1];
2189 elseif (preg_match(FWP_REGEX_EMAIL_PREFIX_NAME, $email, $matches)) :
2190 ($ret['name'] = $matches[2]) or ($ret['name'] = $matches[3]);
2191 $ret['email'] = $matches[4];
2192 elseif (preg_match(FWP_REGEX_EMAIL_JUST_ADDY, $email, $matches)) :
2193 $ret['name'] = NULL; $ret['email'] = $matches[1];
2194 elseif (preg_match(FWP_REGEX_EMAIL_JUST_NAME, $email, $matches)) :
2195 $ret['email'] = NULL;
2196 ($ret['name'] = $matches[2]) or ($ret['name'] = $matches[3]);
2197 else :
2198 $ret['name'] = NULL; $ret['email'] = NULL;
2199 endif;
2200 return $ret;
2201 }
2202
2203