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./othercms/wordpress-6.0/wp-admin/includes/theme-install.php
<?php
/**
 * WordPress Theme Installation Administration API
 *
 * @package WordPress
 * @subpackage Administration
 */

$themes_allowedtags = array(
   
'a'       => array(
       
'href'   => array(),
       
'title'  => array(),
       
'target' => array(),
    ),
   
'abbr'    => array( 'title' => array() ),
   
'acronym' => array( 'title' => array() ),
   
'code'    => array(),
   
'pre'     => array(),
   
'em'      => array(),
   
'strong'  => array(),
   
'div'     => array(),
   
'p'       => array(),
   
'ul'      => array(),
   
'ol'      => array(),
   
'li'      => array(),
   
'h1'      => array(),
   
'h2'      => array(),
   
'h3'      => array(),
   
'h4'      => array(),
   
'h5'      => array(),
   
'h6'      => array(),
   
'img'     => array(
       
'src'   => array(),
       
'class' => array(),
       
'alt'   => array(),
    ),
);

$theme_field_defaults = array(
   
'description'  => true,
   
'sections'     => false,
   
'tested'       => true,
   
'requires'     => true,
   
'rating'       => true,
   
'downloaded'   => true,
   
'downloadlink' => true,
   
'last_updated' => true,
   
'homepage'     => true,
   
'tags'         => true,
   
'num_ratings'  => true,
);

/**
 * Retrieves the list of WordPress theme features (aka theme tags).
 *
 * @since 2.8.0
 *
 * @deprecated 3.1.0 Use get_theme_feature_list() instead.
 *
 * @return array
 */
function install_themes_feature_list() {
   
_deprecated_function( __FUNCTION__, '3.1.0', 'get_theme_feature_list()' );

   
$cache = get_transient( 'wporg_theme_feature_list' );
    if ( !
$cache ) {
       
set_transient( 'wporg_theme_feature_list', array(), 3 * HOUR_IN_SECONDS );
    }

    if (
$cache ) {
        return
$cache;
    }

   
$feature_list = themes_api( 'feature_list', array() );
    if (
is_wp_error( $feature_list ) ) {
        return array();
    }

   
set_transient( 'wporg_theme_feature_list', $feature_list, 3 * HOUR_IN_SECONDS );

    return
$feature_list;
}

/**
 * Displays search form for searching themes.
 *
 * @since 2.8.0
 *
 * @param bool $type_selector
 */
function install_theme_search_form( $type_selector = true ) {
   
$type = isset( $_REQUEST['type'] ) ? wp_unslash( $_REQUEST['type'] ) : 'term';
   
$term = isset( $_REQUEST['s'] ) ? wp_unslash( $_REQUEST['s'] ) : '';
    if ( !
$type_selector ) {
        echo
'<p class="install-help">' . __( 'Search for themes by keyword.' ) . '</p>';
    }
   
?>
<form id="search-themes" method="get">
    <input type="hidden" name="tab" value="search" />
    <?php if ( $type_selector ) : ?>
   <label class="screen-reader-text" for="typeselector"><?php _e( 'Type of search' ); ?></label>
    <select    name="type" id="typeselector">
    <option value="term" <?php selected( 'term', $type ); ?>><?php _e( 'Keyword' ); ?></option>
    <option value="author" <?php selected( 'author', $type ); ?>><?php _e( 'Author' ); ?></option>
    <option value="tag" <?php selected( 'tag', $type ); ?>><?php _ex( 'Tag', 'Theme Installer' ); ?></option>
    </select>
    <label class="screen-reader-text" for="s">
        <?php
       
switch ( $type ) {
            case
'term':
               
_e( 'Search by keyword' );
                break;
            case
'author':
               
_e( 'Search by author' );
                break;
            case
'tag':
               
_e( 'Search by tag' );
                break;
        }
       
?>
   </label>
    <?php else : ?>
   <label class="screen-reader-text" for="s"><?php _e( 'Search by keyword' ); ?></label>
    <?php endif; ?>
   <input type="search" name="s" id="s" size="30" value="<?php echo esc_attr( $term ); ?>" autofocus="autofocus" />
    <?php submit_button( __( 'Search' ), '', 'search', false ); ?>
</form>
    <?php
}

/**
 * Displays tags filter for themes.
 *
 * @since 2.8.0
 */
function install_themes_dashboard() {
   
install_theme_search_form( false );
   
?>
<h4><?php _e( 'Feature Filter' ); ?></h4>
<p class="install-help"><?php _e( 'Find a theme based on specific features.' ); ?></p>

<form method="get">
    <input type="hidden" name="tab" value="search" />
    <?php
    $feature_list
= get_theme_feature_list();
    echo
'<div class="feature-filter">';

    foreach ( (array)
$feature_list as $feature_name => $features ) {
       
$feature_name = esc_html( $feature_name );
        echo
'<div class="feature-name">' . $feature_name . '</div>';

        echo
'<ol class="feature-group">';
        foreach (
$features as $feature => $feature_name ) {
           
$feature_name = esc_html( $feature_name );
           
$feature      = esc_attr( $feature );
           
?>

<li>
    <input type="checkbox" name="features[]" id="feature-id-<?php echo $feature; ?>" value="<?php echo $feature; ?>" />
    <label for="feature-id-<?php echo $feature; ?>"><?php echo $feature_name; ?></label>
</li>

<?php    } ?>
</ol>
<br class="clear" />
        <?php
   
}
   
?>

</div>
<br class="clear" />
    <?php submit_button( __( 'Find Themes' ), '', 'search' ); ?>
</form>
    <?php
}

/**
 * @since 2.8.0
 */
function install_themes_upload() {
   
?>
<p class="install-help"><?php _e( 'If you have a theme in a .zip format, you may install or update it by uploading it here.' ); ?></p>
<form method="post" enctype="multipart/form-data" class="wp-upload-form" action="<?php echo self_admin_url( 'update.php?action=upload-theme' ); ?>">
    <?php wp_nonce_field( 'theme-upload' ); ?>
   <label class="screen-reader-text" for="themezip"><?php _e( 'Theme zip file' ); ?></label>
    <input type="file" id="themezip" name="themezip" accept=".zip" />
    <?php submit_button( __( 'Install Now' ), '', 'install-theme-submit', false ); ?>
</form>
    <?php
}

/**
 * Prints a theme on the Install Themes pages.
 *
 * @deprecated 3.4.0
 *
 * @global WP_Theme_Install_List_Table $wp_list_table
 *
 * @param object $theme
 */
function display_theme( $theme ) {
   
_deprecated_function( __FUNCTION__, '3.4.0' );
    global
$wp_list_table;
    if ( ! isset(
$wp_list_table ) ) {
       
$wp_list_table = _get_list_table( 'WP_Theme_Install_List_Table' );
    }
   
$wp_list_table->prepare_items();
   
$wp_list_table->single_row( $theme );
}

/**
 * Displays theme content based on theme list.
 *
 * @since 2.8.0
 *
 * @global WP_Theme_Install_List_Table $wp_list_table
 */
function display_themes() {
    global
$wp_list_table;

    if ( ! isset(
$wp_list_table ) ) {
       
$wp_list_table = _get_list_table( 'WP_Theme_Install_List_Table' );
    }
   
$wp_list_table->prepare_items();
   
$wp_list_table->display();

}

/**
 * Displays theme information in dialog box form.
 *
 * @since 2.8.0
 *
 * @global WP_Theme_Install_List_Table $wp_list_table
 */
function install_theme_information() {
    global
$wp_list_table;

   
$theme = themes_api( 'theme_information', array( 'slug' => wp_unslash( $_REQUEST['theme'] ) ) );

    if (
is_wp_error( $theme ) ) {
       
wp_die( $theme );
    }

   
iframe_header( __( 'Theme Installation' ) );
    if ( ! isset(
$wp_list_table ) ) {
       
$wp_list_table = _get_list_table( 'WP_Theme_Install_List_Table' );
    }
   
$wp_list_table->theme_installer_single( $theme );
   
iframe_footer();
    exit;
}