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

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export.php

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