wp/app/themes/dwp/functions.php

<?php

/*************************************************
// ############### parent theme ################## //
**************************************************/
add_action( 'wp_enqueue_scripts', 'enqueue_parent_styles' );
function enqueue_parent_styles() {
   wp_enqueue_style( 'parent-style', get_template_directory_uri().'/style.css' );
}


/*************************************************
// ############### require ################## //
**************************************************/
//require get_stylesheet_directory() . '/inc/cust-func.php';


/*************************************************
// ############### wp_head ################## //
**************************************************/
remove_action('wp_head', 'index_rel_link' );
remove_action('wp_head', 'rel_canonical');
remove_action('wp_head', 'start_post_rel_link', 10);
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10);
remove_action('wp_head', 'wp_shortlink_wp_head', 10);
remove_action('wp_head', 'parent_post_rel_link', 10);
remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'feed_links_extra', 3 );
remove_action('wp_head', 'feed_links', 2 );
remove_action('wp_head', 'wp_oembed_add_discovery_links', 10);
remove_action('wp_head', 'wp_oembed_add_host_js', 10);
remove_action('wp_head', 'rest_output_link_wp_head', 10);
remove_action('template_redirect', 'rest_output_link_header', 11, 0);

function dwp_remove_wp_ver_css_js( $src ) {
    if ( strpos( $src, 'ver=' ) )
        $src = remove_query_arg( 'ver', $src );
    return $src;
}
add_filter( 'style_loader_src', 'dwp_remove_wp_ver_css_js', 9999 );
add_filter( 'script_loader_src', 'dwp_remove_wp_ver_css_js', 9999 );

add_filter( 'xmlrpc_enabled', '__return_false' );
add_filter( 'wp_headers', 'dwp_disable_x_pingback' );
function dwp_disable_x_pingback( $headers ) {
  unset( $headers['X-Pingback'] );
  return $headers;
}


/*************************************************
// ###############  Emojis  ################## //
**************************************************/
function dwp_disable_emojis() {
	remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
	remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
	remove_action( 'wp_print_styles', 'print_emoji_styles' );
	remove_action( 'admin_print_styles', 'print_emoji_styles' );
	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
	remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
	//add_filter( 'tiny_mce_plugins', 'disable_emojis_tinymce' );
	add_filter( 'emoji_svg_url', '__return_false' );
}
add_action( 'init', 'dwp_disable_emojis' );


/*************************************************
// ############  style-admin.css  ############## //
**************************************************/
add_action('admin_enqueue_scripts', 'dwp_admin_theme_style');
function dwp_admin_theme_style() {
    wp_enqueue_style('dwp-theme', get_stylesheet_directory_uri() . '/style-admin.css');
}


/*************************************************
// ##############  Admin pages  ################ //
**************************************************/
add_action( 'admin_menu', 'dwp_remove_admin_pages', 99 );
function dwp_remove_admin_pages() {
	/*
	remove_menu_page( 'tools.php' );
	remove_menu_page( 'edit.php?post_type=page' );
	remove_menu_page( 'edit.php?post_type=portfolio' );
	remove_menu_page( 'edit-comments.php' );
	remove_menu_page( 'edit.php' );
	remove_submenu_page('edit.php', 'edit-tags.php?taxonomy=category');
	remove_submenu_page('edit.php', 'edit-tags.php?taxonomy=post_tag');
	remove_menu_page( 'upload.php' );
	remove_menu_page( 'themes.php' );
	remove_menu_page( 'plugins.php' );
	remove_menu_page( 'users.php' );
	remove_menu_page( 'profile.php' );
	remove_menu_page( 'options-general.php' );
	*/
}

/*************************************************
// ######### email from:/reply-to  ############# //
**************************************************/
add_filter('wp_mail_from', 'dwp_fromemail');
function dwp_fromemail($email) {
	$wpfrom = get_option('admin_email');
    return $wpfrom;
}


/*************************************************
// ######### rm 'WordPress' admin title  ####### //
**************************************************/
add_filter('admin_title', 'dwp_admin_title', 10, 2);
function dwp_admin_title($admin_title, $title) {
    return get_bloginfo('name').' - '.$title;
}


/*************************************************
// ############## login/out  ################### //
**************************************************/
add_action('wp_logout','dwp_redirect_after_logout');
function dwp_redirect_after_logout(){
  wp_safe_redirect( home_url() );
  exit();
}
add_filter( 'login_headertext', 'dwp_login_title' );
function dwp_login_title() {
	return get_option( 'blogname' );
}
add_filter( 'login_headerurl', 'dwp_login_url' );
function dwp_login_url($url) {
	return home_url();
}
//add_filter( 'login_redirect', 'dwp_login_redirect', 10, 3 );
//function dwp_login_redirect( $redirect_to, $request, $user ){
//    return home_url();
//}
add_action( 'login_enqueue_scripts', 'dwp_login_logo' );
function dwp_login_logo() { ?>
    <style type="text/css">
      body.login {
        background-color: #333;
      }
      #login h1 a, .login h1 a {
        background-image: url(<?php echo get_stylesheet_directory_uri(); ?>/img/logo.png);
        height:130px;
        width:320px;
        background-size: 320px 130px;
        background-repeat: no-repeat;
        padding-bottom: 10px;
      }
    </style>
<?php }


/*************************************************
// ############ admin menu order  ############## //
**************************************************/
add_filter( 'custom_menu_order', '__return_true' );
add_filter( 'menu_order', 'dwp_change_menu_order' );
function dwp_change_menu_order( $menu_order ) {
    return array(
        'index.php',
        'edit.php',
        'edit.php?post_type=page',
        'upload.php',
    );
}


/*************************************************
// #############  Admin Bar  ################## //
**************************************************/
add_filter('show_admin_bar', '__return_false');
add_filter('show_recent_comments_widget_style', function() { return false; });

add_action( 'admin_bar_menu', 'dwp_remove_adminbar', 999 );
function dwp_remove_adminbar( $wp_admin_bar ) {
	$wp_admin_bar->remove_node( 'wp-logo' );
	$wp_admin_bar->remove_menu( 'edit' );
	$wp_admin_bar->remove_menu( 'new-user' );
	$wp_admin_bar->remove_menu( 'new-post' );
	$wp_admin_bar->remove_menu( 'new-page' );
	$wp_admin_bar->remove_node( 'new-media' );
	$wp_admin_bar->remove_menu( 'edit-profile' );
	$wp_admin_bar->remove_menu( 'comments' );
}
function dwp_remove_new_content(){
    global $wp_admin_bar;
    $wp_admin_bar->remove_menu( 'new-content' );
}
add_action( 'wp_before_admin_bar_render', 'dwp_remove_new_content' );


/*************************************************
// ############ admin footer  ############## //
**************************************************/
add_filter('admin_footer_text', '__return_empty_string', 1000);
add_filter('update_footer', '__return_empty_string', 1000);


/*************************************************
// ############ dashboard items ################ //
**************************************************/
remove_action('welcome_panel', 'wp_welcome_panel');
add_filter('screen_options_show_screen', '__return_false');
add_action('admin_head', 'dwp_remove_help_tabs');
function dwp_remove_help_tabs() {
    $screen = get_current_screen();
    $screen->remove_help_tabs();
}
add_action( 'admin_init', 'dwp_remove_dashboard_meta' );
function dwp_remove_dashboard_meta() {
	remove_meta_box( 'dashboard_site_health', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_plugins', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_primary', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_secondary', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );
  remove_meta_box( 'dashboard_quick_press', 'dashboard', 'side' );
}


/*************************************************
// ####### comments on attachments ############# //
**************************************************/
add_action( 'pre_comment_on_post', 'dwp_remove_comments_from_attachments', 10, 2 );
function dwp_remove_comments_from_attachments( $open, $post_id ){
    return ( 'attachment' == get_post_type( $post_id )  ) ? false : $open;
}
add_filter( 'comments_open', 'dwp_filter_media_comment_status', 10 , 2 );
function dwp_filter_media_comment_status( $open, $post_id ) {
	$post = get_post( $post_id );
	if( $post->post_type == 'attachment' ) {
		return false;
	}
	return $open;
}


/*************************************************
// ####### menus for logged in/out ############# //
  create two menus named 'logged-in' & 'logged-out
  in top-navigation location of theme
**************************************************/
add_filter( 'wp_nav_menu_args', 'dwp_nav_menu_args' );
function dwp_nav_menu_args( $args = '' ) {
	if( is_user_logged_in() ) {
		if( 'top-navigation' == $args['theme_location'] ) {
			$args['menu'] = 'logged-in';
		}
	} else {
		if( 'top-navigation' == $args['theme_location'] ) {
			$args['menu'] = 'logged-out';
		}
	}
	return $args;
}


/*************************************************
// ############ user last login ################ //
**************************************************/
add_action( 'wp_login', 'dwp_login_timestamp', 20, 2 );
function dwp_login_timestamp( $user_login, $user ) {
	update_user_meta( $user->ID, 'last_login', time() );
}
add_filter( 'manage_users_columns', 'dwp_user_last_login_column' );
function dwp_user_last_login_column( $columns ) {
	$columns['last_login'] = 'Last Login';
	return $columns;
}
add_filter( 'manage_users_custom_column', 'dwp_last_login_column', 10, 3 );
function dwp_last_login_column( $output, $column_id, $user_id ){
	if( $column_id == 'last_login' ) {
		$last_login = get_user_meta( $user_id, 'last_login', true );
		$date_format = 'j M, Y';
		$output = $last_login ? date( $date_format, $last_login ) : '-';
	}
	return $output;
}
add_filter( 'manage_users_sortable_columns', 'dwp_sortable_columns' );
function dwp_sortable_columns( $columns ) {
	return wp_parse_args( array(
	 	'last_login' => 'last_login'
	), $columns );
}
add_action( 'pre_get_users', 'dwp_sort_last_login_column' );
function dwp_sort_last_login_column( $query ) {
	if( !is_admin() ) {
		return $query;
	}
	$screen = get_current_screen();
	if( isset( $screen->id ) && $screen->id !== 'users' ) {
		return $query;
	}
	if( isset( $_GET[ 'orderby' ] ) && $_GET[ 'orderby' ] == 'last_login' ) {
		$query->query_vars['meta_key'] = 'last_login';
		$query->query_vars['orderby'] = 'meta_value';
	}
	return $query;
}


/*************************************************
// ########## Howdy email/adminbar ############# //
**************************************************/
add_filter( 'gettext', 'dwp_change_howdy_text', 10, 2 );
function dwp_change_howdy_text( $translation, $original ) {
    if( 'Howdy, %1$s' == $original )
        $translation = '%1$s';
    return $translation;
}
add_filter( 'admin_bar_menu', 'dwp_replace_howdy', 25 );
function dwp_replace_howdy( $wp_admin_bar ) {
	$my_account = $wp_admin_bar->get_node('my-account');
	$newtext = str_replace( 'Howdy,', '', $my_account->title );
	$wp_admin_bar->add_node( array(
		'id' => 'my-account',
		'title' => $newtext,
	) );
}


/*************************************************
// ############### user profile ################ //
**************************************************/
if(is_admin()){
  remove_action("admin_color_scheme_picker", "admin_color_scheme_picker");
}
add_action( 'personal_options_update', 'dwp_save_extra_user_profile_fields' );
add_action( 'edit_user_profile_update', 'dwp_save_extra_user_profile_fields' );

add_action( 'show_user_profile', 'dwp_extra_user_profile_fields' );
add_action( 'edit_user_profile', 'dwp_extra_user_profile_fields' );

function dwp_extra_user_profile_fields( $user ) { ?>
    <br>
		<h3><?php _e("User Information", "blank"); ?></h3>
		<p>This information is useful for adminstrative purposes</p>

    <table class="form-table">
    <tr>
        <th><label for="address"><?php _e("Phone"); ?></label></th>
        <td>
            <input type="text" name="phone" id="phone" value="<?php echo esc_attr( get_the_author_meta( 'address', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your phone number."); ?></span>
        </td>
    </tr>
    <tr>
        <th><label for="address"><?php _e("Address"); ?></label></th>
        <td>
            <input type="text" name="address" id="address" value="<?php echo esc_attr( get_the_author_meta( 'address', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your address."); ?></span>
        </td>
    </tr>
    <tr>
        <th><label for="city"><?php _e("City"); ?></label></th>
        <td>
            <input type="text" name="city" id="city" value="<?php echo esc_attr( get_the_author_meta( 'city', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your city."); ?></span>
        </td>
    </tr>
    <tr>
    <th><label for="postalcode"><?php _e("Postal Code"); ?></label></th>
        <td>
            <input type="text" name="postalcode" id="postalcode" value="<?php echo esc_attr( get_the_author_meta( 'postalcode', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your postal code."); ?></span>
        </td>
    </tr>
		</table>
		<br>
		<h3><?php _e("User Accounts", "blank"); ?></h3>
		<p>This information is useful for the OpenGraph Protocol</p>
    <tr>
		<table class="form-table">
    <th><label for="postalcode"><?php _e("Facebook Username"); ?></label></th>
        <td>
            <input type="text" name="facebook-username" id="facebook-username" value="<?php echo esc_attr( get_the_author_meta( 'facebook-username', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your Facebook username."); ?></span>
        </td>
    </tr>
    <tr>
    <th><label for="postalcode"><?php _e("Twitter Username"); ?></label></th>
        <td>
            <input type="text" name="twitter-username" id="twitter-username" value="<?php echo esc_attr( get_the_author_meta( 'twitter-username', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your Twitter username."); ?></span>
        </td>
    </tr>
    </table>
<?php }

add_action( 'personal_options_update', 'dwp_save_extra_user_profile_fields' );
add_action( 'edit_user_profile_update', 'dwp_save_extra_user_profile_fields' );

function dwp_save_extra_user_profile_fields( $user_id ) {
    if ( !current_user_can( 'edit_user', $user_id ) ) {
        return false;
    }
		update_user_meta( $user_id, 'phone', $_POST['phone'] );
    update_user_meta( $user_id, 'address', $_POST['address'] );
    update_user_meta( $user_id, 'city', $_POST['city'] );
    update_user_meta( $user_id, 'postalcode', $_POST['postalcode'] );
		update_user_meta( $user_id, 'facebook-username', $_POST['facebook-username'] );
		update_user_meta( $user_id, 'twitter-username', $_POST['twitter-username'] );
}


/*************************************************
// ############# OpenGraph meta ################ //
**************************************************/
add_filter('language_attributes', 'dwp_doctype_opengraph');
function dwp_doctype_opengraph($output) {
    return $output . '
    xmlns:og="http://opengraphprotocol.org/schema/"
    xmlns:fb="http://www.facebook.com/2008/fbml"';
}
add_action('wp_head', 'dwp_opengraph', 5);
function dwp_opengraph() {
  global $post;
  if (is_single()) {
    if (has_post_thumbnail($post->ID)) {
      $img_src = wp_get_attachment_image_src(get_post_thumbnail_id( $post->ID ), 'full'); $img_src = $img_src[0];
    } elseif ( metadata_exists( 'post', get_the_ID(), 'featured_image_url' ) ){
      $img_src = get_post_meta( get_the_ID(), 'featured_image_url', true );
    } else {
      $img_src = get_stylesheet_directory_uri() . '/img/opengraph_image.jpg';
    }
    if($excerpt = $post->post_excerpt) {
      $excerpt = strip_tags($post->post_excerpt);
      $excerpt = str_replace("", "'", $excerpt);
    } else {
      $excerpt = get_bloginfo('description');
    }
?>
  <meta property="og:title" content="<?php echo the_title(); ?>"/>
  <meta property="og:description" content="<?php echo $excerpt; ?>"/>
  <meta property="og:type" content="article"/>
  <meta property="og:url" content="<?php echo the_permalink(); ?>"/>
  <meta property="og:site_name" content="<?php echo get_bloginfo(); ?>"/>
  <meta property="og:image" content="<?php echo $img_src; ?>"/>
  <meta property="fb:app_id" content="203136806559589" />
  <meta name="twitter:site" content="@<?php echo get_user_meta( get_current_user_id(), 'twitter-username', true );?>">
  <meta name="twitter:creator" content="@<?php echo get_user_meta( get_current_user_id(), 'twitter-username', true );?>">
  <meta name="twitter:title" content="<?php echo the_title(); ?>">
  <meta name="twitter:description" content="<?php echo $excerpt; ?>">
  <meta name="twitter:image" content="<?php echo $img_src; ?>">
<?php
    } else {
      return;
    }
	 $content = do_shortcode( apply_filters( 'the_content', $post->post_content ) );
	 $media_url = get_post_meta( get_the_ID(), 'media', true );
	 $media = get_media_embedded_in_content( $content );
	 if( !empty($media) ) {
		 $video_url = $media[0];
	?>
	<meta property="og:video" content="<?php echo $media_url; ?>" />
	<meta property="og:video:secure_url" content="<?php echo $media_url; ?>" />
	<meta property="og:video:width" content="1280" />
	<meta property="og:video:height" content="720" />
	<meta property="og:video:type" content="video/mp4" />
	<meta name="twitter:card" content="player">
	<meta name="twitter:player" content="<?php echo get_permalink();?>container/" />
	<meta name="twitter:player:width" content="1280" />
	<meta name="twitter:player:height" content="720" />
	<meta name="twitter:player:stream" content="<?php echo $media_url; ?>" />
	<meta name="twitter:player:stream:content_type" content="video/mp4" />
<?php
    } else {
?>
  <meta name="twitter:card" content="summary_large_image">
<?php
    }
}
add_action( 'init', 'dwp_read_container_endpoint' );
function dwp_read_container_endpoint(){
	add_rewrite_endpoint( 'container', EP_PERMALINK);
}
add_filter( 'single_template', 'dwp_read_container_template' );
function dwp_read_container_template( $template = '' ) {
    global $wp_query;
    if( ! array_key_exists( 'container', $wp_query->query_vars ) ) return $template;
    $template = locate_template( 'single-container.php' );
    return $template;
}
add_shortcode( 'video', 'dwp_video_embed' );
function dwp_video_embed( $attr, $content='' ) {
  if ( ! isset( $attr['poster'] ) && has_post_thumbnail() ) {
	$poster = get_post_meta( get_the_ID(), 'media-poster', true );
    $attr['poster'] = $poster;
  }
  return wp_video_shortcode( $attr, $content );
}