1<?php
2/**
3 * Install plugin administration panel.
4 *
5 * @package WordPress
6 * @subpackage Administration
7 */
8// TODO: Route this page via a specific iframe handler instead of the do_action below.
9if ( ! defined( 'IFRAME_REQUEST' ) && isset( $_GET['tab'] ) && ( 'plugin-information' === $_GET['tab'] ) ) {
10	define( 'IFRAME_REQUEST', true );
11}
12
13/**
14 * WordPress Administration Bootstrap.
15 */
16require_once __DIR__ . '/admin.php';
17
18if ( ! current_user_can( 'install_plugins' ) ) {
19	wp_die( __( 'Sorry, you are not allowed to install plugins on this site.' ) );
20}
21
22if ( is_multisite() && ! is_network_admin() ) {
23	wp_redirect( network_admin_url( 'plugin-install.php' ) );
24	exit;
25}
26
27$wp_list_table = _get_list_table( 'WP_Plugin_Install_List_Table' );
28$pagenum       = $wp_list_table->get_pagenum();
29
30if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) {
31	$location = remove_query_arg( '_wp_http_referer', wp_unslash( $_SERVER['REQUEST_URI'] ) );
32
33	if ( ! empty( $_REQUEST['paged'] ) ) {
34		$location = add_query_arg( 'paged', (int) $_REQUEST['paged'], $location );
35	}
36
37	wp_redirect( $location );
38	exit;
39}
40
41$wp_list_table->prepare_items();
42
43$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );
44
45if ( $pagenum > $total_pages && $total_pages > 0 ) {
46	wp_redirect( add_query_arg( 'paged', $total_pages ) );
47	exit;
48}
49
50$title       = __( 'Add Plugins' );
51$parent_file = 'plugins.php';
52
53wp_enqueue_script( 'plugin-install' );
54if ( 'plugin-information' != $tab ) {
55	add_thickbox();
56}
57
58$body_id = $tab;
59
60wp_enqueue_script( 'updates' );
61
62/**
63 * Fires before each tab on the Install Plugins screen is loaded.
64 *
65 * The dynamic portion of the action hook, `$tab`, allows for targeting
66 * individual tabs, for instance 'install_plugins_pre_plugin-information'.
67 *
68 * @since 2.7.0
69 */
70do_action( "install_plugins_pre_{$tab}" );
71
72/*
73 * Call the pre upload action on every non-upload plugin installation screen
74 * because the form is always displayed on these screens.
75 */
76if ( 'upload' !== $tab ) {
77	/** This action is documented in wp-admin/plugin-install.php */
78	do_action( 'install_plugins_pre_upload' );
79}
80
81get_current_screen()->add_help_tab(
82	array(
83		'id'      => 'overview',
84		'title'   => __( 'Overview' ),
85		'content' =>
86				'<p>' . sprintf(
87					/* translators: %s: https://wordpress.org/plugins/ */
88					__( 'Plugins hook into WordPress to extend its functionality with custom features. Plugins are developed independently from the core WordPress application by thousands of developers all over the world. All plugins in the official <a href="%s">WordPress Plugin Directory</a> are compatible with the license WordPress uses.' ),
89					__( 'https://wordpress.org/plugins/' )
90				) . '</p>' .
91				'<p>' . __( 'You can find new plugins to install by searching or browsing the directory right here in your own Plugins section.' ) . ' <span id="live-search-desc" class="hide-if-no-js">' . __( 'The search results will be updated as you type.' ) . '</span></p>',
92
93	)
94);
95get_current_screen()->add_help_tab(
96	array(
97		'id'      => 'adding-plugins',
98		'title'   => __( 'Adding Plugins' ),
99		'content' =>
100				'<p>' . __( 'If you know what you&#8217;re looking for, Search is your best bet. The Search screen has options to search the WordPress Plugin Directory for a particular Term, Author, or Tag. You can also search the directory by selecting popular tags. Tags in larger type mean more plugins have been labeled with that tag.' ) . '</p>' .
101				'<p>' . __( 'If you just want to get an idea of what&#8217;s available, you can browse Featured and Popular plugins by using the links above the plugins list. These sections rotate regularly.' ) . '</p>' .
102				'<p>' . __( 'You can also browse a user&#8217;s favorite plugins, by using the Favorites link above the plugins list and entering their WordPress.org username.' ) . '</p>' .
103				'<p>' . __( 'If you want to install a plugin that you&#8217;ve downloaded elsewhere, click the Upload Plugin button above the plugins list. You will be prompted to upload the .zip package, and once uploaded, you can activate the new plugin.' ) . '</p>',
104	)
105);
106
107get_current_screen()->set_help_sidebar(
108	'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
109	'<p>' . __( '<a href="https://wordpress.org/support/article/plugins-add-new-screen/">Documentation on Installing Plugins</a>' ) . '</p>' .
110	'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'
111);
112
113get_current_screen()->set_screen_reader_content(
114	array(
115		'heading_views'      => __( 'Filter plugins list' ),
116		'heading_pagination' => __( 'Plugins list navigation' ),
117		'heading_list'       => __( 'Plugins list' ),
118	)
119);
120
121/**
122 * WordPress Administration Template Header.
123 */
124require_once ABSPATH . 'wp-admin/admin-header.php';
125?>
126<div class="wrap <?php echo esc_attr( "plugin-install-tab-$tab" ); ?>">
127<h1 class="wp-heading-inline">
128<?php
129echo esc_html( $title );
130?>
131</h1>
132
133<?php
134if ( ! empty( $tabs['upload'] ) && current_user_can( 'upload_plugins' ) ) {
135	printf(
136		' <a href="%s" class="upload-view-toggle page-title-action"><span class="upload">%s</span><span class="browse">%s</span></a>',
137		( 'upload' === $tab ) ? self_admin_url( 'plugin-install.php' ) : self_admin_url( 'plugin-install.php?tab=upload' ),
138		__( 'Upload Plugin' ),
139		__( 'Browse Plugins' )
140	);
141}
142?>
143
144<hr class="wp-header-end">
145
146<?php
147/*
148 * Output the upload plugin form on every non-upload plugin installation screen, so it can be
149 * displayed via JavaScript rather then opening up the devoted upload plugin page.
150 */
151if ( 'upload' !== $tab ) {
152	?>
153	<div class="upload-plugin-wrap">
154		<?php
155		/** This action is documented in wp-admin/plugin-install.php */
156		do_action( 'install_plugins_upload' );
157		?>
158	</div>
159	<?php
160	$wp_list_table->views();
161}
162
163/**
164 * Fires after the plugins list table in each tab of the Install Plugins screen.
165 *
166 * The dynamic portion of the action hook, `$tab`, allows for targeting
167 * individual tabs, for instance 'install_plugins_plugin-information'.
168 *
169 * @since 2.7.0
170 *
171 * @param int $paged The current page number of the plugins list table.
172 */
173do_action( "install_plugins_{$tab}", $paged );
174?>
175
176	<span class="spinner"></span>
177</div>
178
179<?php
180wp_print_request_filesystem_credentials_modal();
181wp_print_admin_notice_templates();
182
183/**
184 * WordPress Administration Template Footer.
185 */
186require_once ABSPATH . 'wp-admin/admin-footer.php';
187