WordPress/WordPress

<?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
        /* translators: Hidden accessibility text. */
        _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':
                /* translators: Hidden accessibility text. */
                _e( 'Search by keyword' );
                break;
            case 'author':
                /* translators: Hidden accessibility text. */
                _e( 'Search by author' );
                break;
            case 'tag':
                /* translators: Hidden accessibility text. */
                _e( 'Search by tag' );
                break;
        }
        ?>
    </label>
    <?php else : ?>
    <label class="screen-reader-text" for="s">
        <?php
        /* translators: Hidden accessibility text. */
        _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
}

/**
 * Displays a form to upload themes from zip files.
 *
 * @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 esc_url( self_admin_url( 'update.php?action=upload-theme' ) ); ?>">
    <?php wp_nonce_field( 'theme-upload' ); ?>
    <label class="screen-reader-text" for="themezip">
        <?php
        /* translators: Hidden accessibility text. */
        _e( 'Theme zip file' );
        ?>
    </label>
    <input type="file" id="themezip" name="themezip" accept=".zip" />
    <?php submit_button( _x( 'Install Now', 'theme' ), '', '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;
}