gutenberg / lib / edit-site-export.php

edit-site-export.php in Gutenberg 9.4.1, at lib/edit-site-export.php

118 lines 3.2 KB

Raw Download Zip

1	<?php
2	/**
3	* REST endpoint for exporting the contents of the Edit Site Page editor.
4	*
5	* @package gutenberg
6	*/
7
8	/**
9	* Output a ZIP file with an export of the current templates
10	* and template parts from the site editor, and close the connection.
11	*/
12	function gutenberg_edit_site_export() {
13	// Theme templates and template parts need to be synchronized
14	// before the export.
15	_gutenberg_synchronize_theme_templates( 'template-part' );
16	_gutenberg_synchronize_theme_templates( 'template' );
17
18	// Create ZIP file and directories.
19	$filename = tempnam( get_temp_dir(), 'edit-site-export' );
20	$zip = new ZipArchive();
21	$zip->open( $filename, ZipArchive::OVERWRITE );
22	$zip->addEmptyDir( 'theme' );
23	$zip->addEmptyDir( 'theme/block-templates' );
24	$zip->addEmptyDir( 'theme/block-template-parts' );
25
26	$theme = wp_get_theme()->get_stylesheet();
27
28	// Load templates into the zip file.
29	$template_query = new WP_Query(
30	array(
31	'post_type' => 'wp_template',
32	'post_status' => array( 'publish', 'auto-draft' ),
33	'meta_key' => 'theme',
34	'meta_value' => $theme,
35	'posts_per_page' => -1,
36	'no_found_rows' => true,
37	)
38	);
39	while ( $template_query->have_posts() ) {
40	$template = $template_query->next_post();
41	$zip->addFromString(
42	'theme/block-templates/' . $template->post_name . '.html',
43	gutenberg_strip_post_ids_from_template_part_blocks( $template->post_content )
44	);
45	}
46
47	// Load template parts into the zip file.
48	$template_part_query = new WP_Query(
49	array(
50	'post_type' => 'wp_template_part',
51	'post_status' => array( 'publish', 'auto-draft' ),
52	'meta_key' => 'theme',
53	'meta_value' => $theme,
54	'posts_per_page' => -1,
55	'no_found_rows' => true,
56	)
57	);
58	while ( $template_part_query->have_posts() ) {
59	$template_part = $template_part_query->next_post();
60	$zip->addFromString(
61	'theme/block-template-parts/' . $template_part->post_name . '.html',
62	gutenberg_strip_post_ids_from_template_part_blocks( $template_part->post_content )
63	);
64	}
65
66	// Send back the ZIP file.
67	$zip->close();
68	header( 'Content-Type: application/zip' );
69	header( 'Content-Disposition: attachment; filename=edit-site-export.zip' );
70	header( 'Content-Length: ' . filesize( $filename ) );
71	flush();
72	echo readfile( $filename );
73	die();
74	}
75
76	add_action(
77	'rest_api_init',
78	function () {
79	register_rest_route(
80	'__experimental/edit-site/v1',
81	'/export',
82	array(
83	'methods' => 'GET',
84	'callback' => 'gutenberg_edit_site_export',
85	'permission_callback' => function () {
86	return current_user_can( 'edit_theme_options' );
87	},
88	)
89	);
90	}
91	);
92
93	/**
94	* Remove post id attributes from template part blocks.
95	*
96	* This is needed so that Gutenberg loads the HTML file of the template, instead of looking for a template part post.
97	*
98	* @param string $template_content Template content to modify.
99	*
100	* @return string Potentially modified template content.
101	*/
102	function gutenberg_strip_post_ids_from_template_part_blocks( $template_content ) {
103	$blocks = parse_blocks( $template_content );
104
105	array_walk(
106	$blocks,
107	function( &$block ) {
108	if ( 'core/template-part' !== $block['blockName'] ) {
109	return;
110	}
111
112	unset( $block['attrs']['postId'] );
113	}
114	);
115
116	return serialize_blocks( $blocks );
117	}
118