sc0ttkclark/skc-404.php

## skc-404.php
<?php

/**
 * Handle 404's in a way that can trick Slack and other link previews.
 */
function skc_404_handler() {
	$video_urls = [
		'https://www.youtube.com/watch?v=JB3INq8n9is',
		'https://www.youtube.com/watch?v=jY5Mo_7kLFE',
		'https://www.youtube.com/watch?v=rbsPu1z3ugQ',
		'https://www.youtube.com/watch?v=f-tLr7vONmc',
		'https://www.youtube.com/watch?v=dQw4w9WgXcQ',
	];

	if ( is_admin() || ! is_404() ) {
		return;
	}

	shuffle( $video_urls );

	$video_url = reset( $video_urls );
	$video_url = str_replace( 'watch?v=', 'embed/', $video_url );

	status_header( 200 );

	$year  = date_i18n( 'Y' );
	$month = date_i18n( 'm' );
	$day   = date_i18n( 'd' );

	$date_format = 'F Y';

	// Detect y + y/m + y/m/d formatting in URL.
	$parts = current( explode( '?', $_SERVER['REQUEST_URI'] ) );
	$parts = explode( '/', trim( $parts, '/' ) );

	$path = basename( implode( '/', $parts ) );

	$title_text = ucwords( str_replace( '-', ' ', $path ) );

	if ( ! empty( $parts[0] ) && is_numeric( $parts[0] ) ) {
		$year = (int) $parts[0];

		if ( ! empty( $parts[1] ) && is_numeric( $parts[1] ) ) {
			$month = (int) $parts[1];

			if ( ! empty( $parts[2] ) && is_numeric( $parts[2] ) ) {
				$day = (int) $parts[2];

				$date_format = 'F dS, Y';
			}
		}
	}

	// Set up timestamp.
	$time = strtotime( $year . '-' . $month . '-' . $day );

	// Set page title.
	$title = $title_text . ' - ' . date_i18n( $date_format, $time ) . ' - Scott Kingsley Clark';

	$is_are = 'is';

	// Try to english a little.
	if ( 's' === substr( $title_text, - 1 ) ) {
		$is_are = 'are';
	}

	// Set content dynamically.
	$rando = [
		$title_text . ' ' . $is_are . ' happening, it\'s time that I made an announcement.',
		$title_text . ' ' . $is_are . ' a big deal right now, I think I should explain further.',
	];

	shuffle( $text );

	$text = reset( $text );

	if ( 'will-never-give-you-up' === $path ) {
		$text = 'An imporant announcement about what is going on in the world of Scott(TM)';
	}

	// Output main HTML.
	?>
	<!DOCTYPE html>
	<html class="no-js" lang="en-US" prefix="og: http://ogp.me/ns#">
	<head>
		<meta http-equiv="content-type" content="text/html" charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
		<link rel="profile" href="http://gmpg.org/xfn/11">
		<link rel="canonical" href="https://www.scottkclark.com<?php echo esc_attr( $_SERVER['REQUEST_URI'] ); ?>" />
		<meta property="og:locale" content="en_US" />
		<meta property="og:type" content="website" />
		<meta property="og:title" content="<?php echo esc_attr( $title ); ?>" />
		<meta property="og:description" content="<?php echo esc_attr( $text ); ?>" />
		<meta property="og:url" content="https://www.scottkclark.com<?php echo esc_attr( $_SERVER['REQUEST_URI'] ); ?>" />
		<meta property="og:site_name" content="Scott Kingsley Clark" />
		<meta property="og:image" content="https://www.scottkclark.com/wp-content/uploads/2021/01/the-events-calendar-logo-300x70.png" />
		<meta property="og:image" content="https://www.scottkclark.com/wp-content/uploads/2017/08/pods-logo-green@2x.png" />
		<link rel="icon" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-32x32.jpeg" sizes="32x32" />
		<link rel="icon" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-192x192.jpeg" sizes="192x192" />
		<link rel="apple-touch-icon-precomposed" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-180x180.jpeg" />
		<meta name="msapplication-TileImage" content="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-270x270.jpeg" />
		<title><?php echo esc_html( $title ); ?></title>
		<!-- Global site tag (gtag.js) - Google Analytics -->
		<script async src="https://www.googletagmanager.com/gtag/js?id=UA-7609391-1"></script>
		<script>
			window.dataLayer = window.dataLayer || [];

			function gtag() {
				dataLayer.push( arguments );
			}

			gtag( 'js', new Date() );

			gtag( 'config', 'UA-7609391-1', { 'custom_map' : { 'dimension1' : 'viewtype' } } );
			gtag( 'event', 'viewtype_dimension', { 'viewtype' : 'LOL404' } );
		</script>
	</head>
	<body>
	<?php
	$is_slack    = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'slack' );
	$is_facebook = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'facebook' );
	$is_linkedin = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'linkedin' );
	$is_twitter  = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'twitter' );

	if ( ! $is_slack && ! $is_facebook && ! $is_linkedin && ! $is_twitter && empty( $_GET['skcdebug'] ) ) {
		// Embed the video!
		?>
		<style type="text/css">
			body, html {
				width:  100%;
				height: 100%;
				margin: 0;
				background: #000;
				color: #FFF;
				font-family: Archivo, 'Helvetica Neue', sans-serif;
				font-size: 0.9em;
			}

			a, a:visited, a:hover, a:active, a:focus {
				color: #FFF;
			}
		</style>
		<iframe width="100%" height="94%" src="<?php echo esc_url( $video_url ); ?>?autoplay=1" frameborder="0" allowfullscreen allow="autoplay; fullscreen"></iframe>

		<p align="center">
			<strong>All of my favs:</strong>
			<?php foreach ( $video_urls as $vid_url ) : ?>
				<a href="<?php echo esc_url( $vid_url ); ?>" target="_blank" rel="noopener"><?php echo esc_html( $vid_url ); ?></a>&nbsp;
			<?php endforeach; ?>
		</p>
		<?php
	} else {
		// Output lots of content so the link preview has something to see.
		?>
		<p class="testing-12939j yes maybe"><?php echo implode( '</p><p class="testing-12939j yes maybe">', array_fill( 0, 5000, esc_html( $text ) ) ); ?></p>
	<?php } ?>
	</body>
	</html>
	<?php
	die();
}

add_action( 'template_redirect', 'skc_404_handler' );
	<?php

	/**
	* Handle 404's in a way that can trick Slack and other link previews.
	*/
	function skc_404_handler() {
	$video_urls = [
	'https://www.youtube.com/watch?v=JB3INq8n9is',
	'https://www.youtube.com/watch?v=jY5Mo_7kLFE',
	'https://www.youtube.com/watch?v=rbsPu1z3ugQ',
	'https://www.youtube.com/watch?v=f-tLr7vONmc',
	'https://www.youtube.com/watch?v=dQw4w9WgXcQ',
	];

	if ( is_admin() \|\| ! is_404() ) {
	return;
	}

	shuffle( $video_urls );

	$video_url = reset( $video_urls );
	$video_url = str_replace( 'watch?v=', 'embed/', $video_url );

	status_header( 200 );

	$year = date_i18n( 'Y' );
	$month = date_i18n( 'm' );
	$day = date_i18n( 'd' );

	$date_format = 'F Y';

	// Detect y + y/m + y/m/d formatting in URL.
	$parts = current( explode( '?', $_SERVER['REQUEST_URI'] ) );
	$parts = explode( '/', trim( $parts, '/' ) );

	$path = basename( implode( '/', $parts ) );

	$title_text = ucwords( str_replace( '-', ' ', $path ) );

	if ( ! empty( $parts[0] ) && is_numeric( $parts[0] ) ) {
	$year = (int) $parts[0];

	if ( ! empty( $parts[1] ) && is_numeric( $parts[1] ) ) {
	$month = (int) $parts[1];

	if ( ! empty( $parts[2] ) && is_numeric( $parts[2] ) ) {
	$day = (int) $parts[2];

	$date_format = 'F dS, Y';
	}
	}
	}

	// Set up timestamp.
	$time = strtotime( $year . '-' . $month . '-' . $day );

	// Set page title.
	$title = $title_text . ' - ' . date_i18n( $date_format, $time ) . ' - Scott Kingsley Clark';

	$is_are = 'is';

	// Try to english a little.
	if ( 's' === substr( $title_text, - 1 ) ) {
	$is_are = 'are';
	}

	// Set content dynamically.
	$rando = [
	$title_text . ' ' . $is_are . ' happening, it\'s time that I made an announcement.',
	$title_text . ' ' . $is_are . ' a big deal right now, I think I should explain further.',
	];

	shuffle( $text );

	$text = reset( $text );

	if ( 'will-never-give-you-up' === $path ) {
	$text = 'An imporant announcement about what is going on in the world of Scott(TM)';
	}

	// Output main HTML.
	?>
	<!DOCTYPE html>
	<html class="no-js" lang="en-US" prefix="og: http://ogp.me/ns#">
	<head>
	<meta http-equiv="content-type" content="text/html" charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
	<link rel="profile" href="http://gmpg.org/xfn/11">
	<link rel="canonical" href="https://www.scottkclark.com<?php echo esc_attr( $_SERVER['REQUEST_URI'] ); ?>" />
	<meta property="og:locale" content="en_US" />
	<meta property="og:type" content="website" />
	<meta property="og:title" content="<?php echo esc_attr( $title ); ?>" />
	<meta property="og:description" content="<?php echo esc_attr( $text ); ?>" />
	<meta property="og:url" content="https://www.scottkclark.com<?php echo esc_attr( $_SERVER['REQUEST_URI'] ); ?>" />
	<meta property="og:site_name" content="Scott Kingsley Clark" />
	<meta property="og:image" content="https://www.scottkclark.com/wp-content/uploads/2021/01/the-events-calendar-logo-300x70.png" />
	<meta property="og:image" content="https://www.scottkclark.com/wp-content/uploads/2017/08/pods-logo-green@2x.png" />
	<link rel="icon" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-32x32.jpeg" sizes="32x32" />
	<link rel="icon" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-192x192.jpeg" sizes="192x192" />
	<link rel="apple-touch-icon-precomposed" href="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-180x180.jpeg" />
	<meta name="msapplication-TileImage" content="https://www.scottkclark.com/wp-content/uploads/2017/08/cropped-23858759ec12476f5c1df5aff33ef8f8-270x270.jpeg" />
	<title><?php echo esc_html( $title ); ?></title>
	<!-- Global site tag (gtag.js) - Google Analytics -->
	<script async src="https://www.googletagmanager.com/gtag/js?id=UA-7609391-1"></script>
	<script>
	window.dataLayer = window.dataLayer \|\| [];

	function gtag() {
	dataLayer.push( arguments );
	}

	gtag( 'js', new Date() );

	gtag( 'config', 'UA-7609391-1', { 'custom_map' : { 'dimension1' : 'viewtype' } } );
	gtag( 'event', 'viewtype_dimension', { 'viewtype' : 'LOL404' } );
	</script>
	</head>
	<body>
	<?php
	$is_slack = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'slack' );
	$is_facebook = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'facebook' );
	$is_linkedin = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'linkedin' );
	$is_twitter = false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'twitter' );

	if ( ! $is_slack && ! $is_facebook && ! $is_linkedin && ! $is_twitter && empty( $_GET['skcdebug'] ) ) {
	// Embed the video!
	?>
	<style type="text/css">
	body, html {
	width: 100%;
	height: 100%;
	margin: 0;
	background: #000;
	color: #FFF;
	font-family: Archivo, 'Helvetica Neue', sans-serif;
	font-size: 0.9em;
	}

	a, a:visited, a:hover, a:active, a:focus {
	color: #FFF;
	}
	</style>
	<iframe width="100%" height="94%" src="<?php echo esc_url( $video_url ); ?>?autoplay=1" frameborder="0" allowfullscreen allow="autoplay; fullscreen"></iframe>

	<p align="center">
	<strong>All of my favs:</strong>
	<?php foreach ( $video_urls as $vid_url ) : ?>
	<a href="<?php echo esc_url( $vid_url ); ?>" target="_blank" rel="noopener"><?php echo esc_html( $vid_url ); ?></a>
	<?php endforeach; ?>
	</p>
	<?php
	} else {
	// Output lots of content so the link preview has something to see.
	?>
	<p class="testing-12939j yes maybe"><?php echo implode( '</p><p class="testing-12939j yes maybe">', array_fill( 0, 5000, esc_html( $text ) ) ); ?></p>
	<?php } ?>
	</body>
	</html>
	<?php
	die();
	}

	add_action( 'template_redirect', 'skc_404_handler' );