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beaver-builder-lite-version / includes / export.php

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export.php

455 lines

1	<?php
2	/**
3	* Modified version of the WordPress Export Administration API
4	* that lets us export single posts and selected groups of posts.
5	*
6	* @package WordPress
7	* @subpackage Administration
8	*/
9
10	/**
11	* Generates the WXR export file for download.
12	*
13	* @since 2.1.0
14	*
15	* @global wpdb $wpdb
16	* @global WP_Post $post
17	*
18	* @param array $post_ids
19	*/
20	function fl_export_wp( $post_ids = array() ) {
21	global $wpdb, $post;
22
23	if ( empty( $post_ids ) ) {
24	return;
25	}
26
27	$sitename = sanitize_key( get_bloginfo( 'name' ) );
28	if ( ! empty( $sitename ) ) {
29	$sitename .= '.';
30	}
31	$date = date( 'Y-m-d' );
32	$wp_filename = $sitename . 'wordpress.' . $date . '.xml';
33	/**
34	* Filter the export filename.
35	*
36	* @since 4.4.0
37	*
38	* @param string $wp_filename The name of the file for download.
39	* @param string $sitename The site name.
40	* @param string $date Today's date, formatted.
41	*/
42	$filename = apply_filters( 'export_wp_filename', $wp_filename, $sitename, $date );
43
44	header( 'Content-Description: File Transfer' );
45	header( 'Content-Disposition: attachment; filename=' . $filename );
46	header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true );
47
48	/**
49	* Wrap given string in XML CDATA tag.
50	*
51	* @since 2.1.0
52	*
53	* @param string $str String to wrap in XML CDATA tag.
54	* @return string
55	*/
56	function wxr_cdata( $str ) {
57	if ( ! seems_utf8( $str ) ) {
58	$str = utf8_encode( $str );
59	}
60	// $str = ent2ncr(esc_html($str));
61	$str = '<![CDATA[' . str_replace( ']]>', ']]]]><![CDATA[>', $str ) . ']]>';
62
63	return $str;
64	}
65
66	/**
67	* Return the URL of the site
68	*
69	* @since 2.5.0
70	*
71	* @return string Site URL.
72	*/
73	function wxr_site_url() {
74	// Multisite: the base URL.
75	if ( is_multisite() ) {
76	return network_home_url();
77	} // End if().
78	else { return get_bloginfo_rss( 'url' );
79	}
80	}
81
82	/**
83	* Output a cat_name XML tag from a given category object
84	*
85	* @since 2.1.0
86	*
87	* @param object $category Category Object
88	*/
89	function wxr_cat_name( $category ) {
90	if ( empty( $category->name ) ) {
91	return;
92	}
93
94	echo '<wp:cat_name>' . wxr_cdata( $category->name ) . '</wp:cat_name>';
95	}
96
97	/**
98	* Output a category_description XML tag from a given category object
99	*
100	* @since 2.1.0
101	*
102	* @param object $category Category Object
103	*/
104	function wxr_category_description( $category ) {
105	if ( empty( $category->description ) ) {
106	return;
107	}
108
109	echo '<wp:category_description>' . wxr_cdata( $category->description ) . '</wp:category_description>';
110	}
111
112	/**
113	* Output a tag_name XML tag from a given tag object
114	*
115	* @since 2.3.0
116	*
117	* @param object $tag Tag Object
118	*/
119	function wxr_tag_name( $tag ) {
120	if ( empty( $tag->name ) ) {
121	return;
122	}
123
124	echo '<wp:tag_name>' . wxr_cdata( $tag->name ) . '</wp:tag_name>';
125	}
126
127	/**
128	* Output a tag_description XML tag from a given tag object
129	*
130	* @since 2.3.0
131	*
132	* @param object $tag Tag Object
133	*/
134	function wxr_tag_description( $tag ) {
135	if ( empty( $tag->description ) ) {
136	return;
137	}
138
139	echo '<wp:tag_description>' . wxr_cdata( $tag->description ) . '</wp:tag_description>';
140	}
141
142	/**
143	* Output a term_name XML tag from a given term object
144	*
145	* @since 2.9.0
146	*
147	* @param object $term Term Object
148	*/
149	function wxr_term_name( $term ) {
150	if ( empty( $term->name ) ) {
151	return;
152	}
153
154	echo '<wp:term_name>' . wxr_cdata( $term->name ) . '</wp:term_name>';
155	}
156
157	/**
158	* Output a term_description XML tag from a given term object
159	*
160	* @since 2.9.0
161	*
162	* @param object $term Term Object
163	*/
164	function wxr_term_description( $term ) {
165	if ( empty( $term->description ) ) {
166	return;
167	}
168
169	echo '<wp:term_description>' . wxr_cdata( $term->description ) . '</wp:term_description>';
170	}
171
172	/**
173	* Output list of authors with posts
174	*
175	* @since 3.1.0
176	*
177	* @global wpdb $wpdb WordPress database abstraction object.
178	*
179	* @param array $post_ids Array of post IDs to filter the query by. Optional.
180	*/
181	function wxr_authors_list( array $post_ids = null ) {
182	global $wpdb;
183
184	if ( ! empty( $post_ids ) ) {
185	$post_ids = array_map( 'absint', $post_ids );
186	$and = 'AND ID IN ( ' . implode( ', ', $post_ids ) . ')';
187	} else {
188	$and = '';
189	}
190
191	$authors = array();
192	// @codingStandardsIgnoreStart
193	$results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft' $and" );
194	// @codingStandardsIgnoreEnd
195	foreach ( (array) $results as $result ) {
196	$authors[] = get_userdata( $result->post_author );
197	}
198
199	$authors = array_filter( $authors );
200
201	foreach ( $authors as $author ) {
202	echo "\t<wp:author>";
203	echo '<wp:author_id>' . intval( $author->ID ) . '</wp:author_id>';
204	echo '<wp:author_login>' . wxr_cdata( $author->user_login ) . '</wp:author_login>';
205	echo '<wp:author_email>' . wxr_cdata( $author->user_email ) . '</wp:author_email>';
206	echo '<wp:author_display_name>' . wxr_cdata( $author->display_name ) . '</wp:author_display_name>';
207	echo '<wp:author_first_name>' . wxr_cdata( $author->first_name ) . '</wp:author_first_name>';
208	echo '<wp:author_last_name>' . wxr_cdata( $author->last_name ) . '</wp:author_last_name>';
209	echo "</wp:author>\n";
210	}
211	}
212
213	/**
214	* Ouput all navigation menu terms
215	*
216	* @since 3.1.0
217	*/
218	function wxr_nav_menu_terms() {
219	$nav_menus = wp_get_nav_menus();
220	if ( empty( $nav_menus ) \|\| ! is_array( $nav_menus ) ) {
221	return;
222	}
223
224	foreach ( $nav_menus as $menu ) {
225	echo "\t<wp:term>";
226	echo '<wp:term_id>' . intval( $menu->term_id ) . '</wp:term_id>';
227	echo '<wp:term_taxonomy>nav_menu</wp:term_taxonomy>';
228	echo '<wp:term_slug>' . wxr_cdata( $menu->slug ) . '</wp:term_slug>';
229	wxr_term_name( $menu );
230	echo "</wp:term>\n";
231	}
232	}
233
234	/**
235	* Output list of taxonomy terms, in XML tag format, associated with a post
236	*
237	* @since 2.3.0
238	*/
239	function wxr_post_taxonomy() {
240	$post = get_post();
241
242	$taxonomies = get_object_taxonomies( $post->post_type );
243	if ( empty( $taxonomies ) ) {
244	return;
245	}
246	$terms = wp_get_object_terms( $post->ID, $taxonomies );
247
248	foreach ( (array) $terms as $term ) {
249	echo "\t\t<category domain=\"{$term->taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "</category>\n";
250	}
251	}
252
253	/**
254	*
255	* @param bool $return_me
256	* @param string $meta_key
257	* @return bool
258	*/
259	function wxr_filter_postmeta( $return_me, $meta_key ) {
260	if ( '_edit_lock' == $meta_key ) {
261	$return_me = true;
262	}
263	return $return_me;
264	}
265	add_filter( 'wxr_export_skip_postmeta', 'wxr_filter_postmeta', 10, 2 );
266
267	echo '<?xml version="1.0" encoding="' . get_bloginfo( 'charset' ) . "\" ?>\n";
268
269	?>
270	<!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. -->
271	<!-- It contains information about your site's posts, pages, comments, categories, and other content. -->
272	<!-- You may use this file to transfer that content from one site to another. -->
273	<!-- This file is not intended to serve as a complete backup of your site. -->
274
275	<!-- To import this information into a WordPress site follow these steps: -->
276	<!-- 1. Log in to that site as an administrator. -->
277	<!-- 2. Go to Tools: Import in the WordPress admin panel. -->
278	<!-- 3. Install the "WordPress" importer from the list. -->
279	<!-- 4. Activate & Run Importer. -->
280	<!-- 5. Upload this file using the form provided on that page. -->
281	<!-- 6. You will first be asked to map the authors in this export file to users -->
282	<!-- on the site. For each author, you may choose to map to an -->
283	<!-- existing user on the site or to create a new user. -->
284	<!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. -->
285	<!-- contained in this file into your site. -->
286
287	<?php the_generator( 'export' ); ?>
288	<rss version="2.0"
289	xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/"
290	xmlns:content="http://purl.org/rss/1.0/modules/content/"
291	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
292	xmlns:dc="http://purl.org/dc/elements/1.1/"
293	xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/"
294	>
295
296	<channel>
297	<title><?php bloginfo_rss( 'name' ); ?></title>
298	<link><?php bloginfo_rss( 'url' ); ?></link>
299	<description><?php bloginfo_rss( 'description' ); ?></description>
300	<pubDate><?php echo date( 'D, d M Y H:i:s +0000' ); ?></pubDate>
301	<language><?php bloginfo_rss( 'language' ); ?></language>
302	<wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version>
303	<wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url>
304	<wp:base_blog_url><?php bloginfo_rss( 'url' ); ?></wp:base_blog_url>
305
306	<?php wxr_authors_list( $post_ids ); ?>
307
308	<?php
309	/** This action is documented in wp-includes/feed-rss2.php */
310	do_action( 'rss2_head' );
311	?>
312
313	<?php if ( $post_ids ) {
314	/**
315	* @global WP_Query $wp_query
316	*/
317	global $wp_query;
318
319	// Fake being in the loop.
320	$wp_query->in_the_loop = true;
321
322	// Fetch 20 posts at a time rather than loading the entire table into memory.
323	while ( $next_posts = array_splice( $post_ids, 0, 20 ) ) {
324	$where = 'WHERE ID IN (' . join( ',', $next_posts ) . ')';
325	// @codingStandardsIgnoreStart
326	$posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" );
327	// @codingStandardsIgnoreEnd
328
329	// Begin Loop.
330	foreach ( $posts as $post ) {
331	setup_postdata( $post );
332	$is_sticky = is_sticky( $post->ID ) ? 1 : 0;
333	?>
334	<item>
335	<title><?php
336	/** This filter is documented in wp-includes/feed.php */
337	echo apply_filters( 'the_title_rss', $post->post_title );
338	?></title>
339	<link><?php the_permalink_rss() ?></link>
340	<pubDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_post_time( 'Y-m-d H:i:s', true ), false ); ?></pubDate>
341	<dc:creator><?php echo wxr_cdata( get_the_author_meta( 'login' ) ); ?></dc:creator>
342	<guid isPermaLink="false"><?php the_guid(); ?></guid>
343	<description></description>
344	<content:encoded><?php
345	/**
346	* Filter the post content used for WXR exports.
347	*
348	* @since 2.5.0
349	*
350	* @param string $post_content Content of the current post.
351	*/
352	echo wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) );
353	?></content:encoded>
354	<excerpt:encoded><?php
355	/**
356	* Filter the post excerpt used for WXR exports.
357	*
358	* @since 2.6.0
359	*
360	* @param string $post_excerpt Excerpt for the current post.
361	*/
362	echo wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) );
363	?></excerpt:encoded>
364	<wp:post_id><?php echo intval( $post->ID ); ?></wp:post_id>
365	<wp:post_date><?php echo wxr_cdata( $post->post_date ); ?></wp:post_date>
366	<wp:post_date_gmt><?php echo wxr_cdata( $post->post_date_gmt ); ?></wp:post_date_gmt>
367	<wp:comment_status><?php echo wxr_cdata( $post->comment_status ); ?></wp:comment_status>
368	<wp:ping_status><?php echo wxr_cdata( $post->ping_status ); ?></wp:ping_status>
369	<wp:post_name><?php echo wxr_cdata( $post->post_name ); ?></wp:post_name>
370	<wp:status><?php echo wxr_cdata( $post->post_status ); ?></wp:status>
371	<wp:post_parent><?php echo intval( $post->post_parent ); ?></wp:post_parent>
372	<wp:menu_order><?php echo intval( $post->menu_order ); ?></wp:menu_order>
373	<wp:post_type><?php echo wxr_cdata( $post->post_type ); ?></wp:post_type>
374	<wp:post_password><?php echo wxr_cdata( $post->post_password ); ?></wp:post_password>
375	<wp:is_sticky><?php echo intval( $is_sticky ); ?></wp:is_sticky>
376	<?php if ( 'attachment' == $post->post_type ) : ?>
377	<wp:attachment_url><?php echo wxr_cdata( wp_get_attachment_url( $post->ID ) ); ?></wp:attachment_url>
378	<?php endif; ?>
379	<?php wxr_post_taxonomy(); ?>
380	<?php $postmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID ) );
381	foreach ( $postmeta as $meta ) :
382	/**
383	* Filter whether to selectively skip post meta used for WXR exports.
384	*
385	* Returning a truthy value to the filter will skip the current meta
386	* object from being exported.
387	*
388	* @since 3.3.0
389	*
390	* @param bool $skip Whether to skip the current post meta. Default false.
391	* @param string $meta_key Current meta key.
392	* @param object $meta Current meta object.
393	*/
394	if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) ) {
395	continue;
396	}
397	?>
398	<wp:postmeta>
399	<wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key>
400	<wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
401	</wp:postmeta>
402	<?php endforeach;
403
404	$_comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) );
405	$comments = array_map( 'get_comment', $_comments );
406	foreach ( $comments as $c ) : ?>
407	<wp:comment>
408	<wp:comment_id><?php echo intval( $c->comment_ID ); ?></wp:comment_id>
409	<wp:comment_author><?php echo wxr_cdata( $c->comment_author ); ?></wp:comment_author>
410	<wp:comment_author_email><?php echo wxr_cdata( $c->comment_author_email ); ?></wp:comment_author_email>
411	<wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url>
412	<wp:comment_author_IP><?php echo wxr_cdata( $c->comment_author_IP ); ?></wp:comment_author_IP>
413	<wp:comment_date><?php echo wxr_cdata( $c->comment_date ); ?></wp:comment_date>
414	<wp:comment_date_gmt><?php echo wxr_cdata( $c->comment_date_gmt ); ?></wp:comment_date_gmt>
415	<wp:comment_content><?php echo wxr_cdata( $c->comment_content ) ?></wp:comment_content>
416	<wp:comment_approved><?php echo wxr_cdata( $c->comment_approved ); ?></wp:comment_approved>
417	<wp:comment_type><?php echo wxr_cdata( $c->comment_type ); ?></wp:comment_type>
418	<wp:comment_parent><?php echo intval( $c->comment_parent ); ?></wp:comment_parent>
419	<wp:comment_user_id><?php echo intval( $c->user_id ); ?></wp:comment_user_id>
420	<?php $c_meta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->commentmeta WHERE comment_id = %d", $c->comment_ID ) );
421	foreach ( $c_meta as $meta ) :
422	/**
423	* Filter whether to selectively skip comment meta used for WXR exports.
424	*
425	* Returning a truthy value to the filter will skip the current meta
426	* object from being exported.
427	*
428	* @since 4.0.0
429	*
430	* @param bool $skip Whether to skip the current comment meta. Default false.
431	* @param string $meta_key Current meta key.
432	* @param object $meta Current meta object.
433	*/
434	if ( apply_filters( 'wxr_export_skip_commentmeta', false, $meta->meta_key, $meta ) ) {
435	continue;
436	}
437	?>
438	<wp:commentmeta>
439	<wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key>
440	<wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
441	</wp:commentmeta>
442	<?php endforeach; ?>
443	</wp:comment>
444	<?php endforeach; ?>
445	</item>
446	<?php
447	}// End foreach().
448	}// End while().
449	}// End if().
450	?>
451	</channel>
452	</rss>
453	<?php
454	}
455