<h2>File Contents: /home/planet5/public_html/wp-content/plugins/wpseo-video/classes/class-wpseo-video-bootstrap.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/public_html/wp-content/plugins/wpseo-video/classes/class-wpseo-video-bootstrap.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
/**
 * Yoast SEO Video plugin file.
 *
 * @package Yoast\VideoSEO
 */

/**
 * Bootstraps the Video SEO Module.
 *
 * Makes sure the environment has all the elements we need to be able to run.
 * Notifies the user when certain elements are missing.
 */
class WPSEO_Video_Bootstrap {

	/**
	 * Queued admin notices.
	 *
	 * @var array
	 */
	protected $admin_notices = array();

	/**
	 * Adds hooks to integrate with WordPress.
	 *
	 * @return void
	 */
	public function add_hooks() {
		// Always load the translations to make sure the notifications are translated as well.
		add_action( &#039;admin_init&#039;, array( &#039;WPSEO_Video_Utils&#039;, &#039;load_textdomain&#039; ), 1 );

		// Enable Yoast usage tracking.
		add_filter( &#039;wpseo_enable_tracking&#039;, &#039;__return_true&#039; );

		$can_activate = $this-&gt;can_activate();
		if ( ! $can_activate ) {
			$this-&gt;add_admin_notices_hook();

			return;
		}

		$this-&gt;add_integration_hooks();
	}

	/**
	 * Shows any queued admin notices.
	 *
	 * @return void
	 */
	public function show_admin_notices() {
		if ( empty( $this-&gt;admin_notices ) ) {
			return;
		}

		if ( $this-&gt;is_iframe_request() ) {
			return;
		}

		foreach ( $this-&gt;admin_notices as $admin_notice ) {
			$this-&gt;display_admin_notice( $admin_notice );
		}
	}

	/**
	 * Adds hooks to load the video integrations.
	 *
	 * @return void
	 */
	protected function add_integration_hooks() {
		add_action( &#039;plugins_loaded&#039;, array( $this, &#039;load_metabox_integration&#039; ), 10 );
		add_action( &#039;plugins_loaded&#039;, array( $this, &#039;load_sitemap_integration&#039; ), 20 );
		add_action( &#039;plugins_loaded&#039;, array( $this, &#039;load_schema_integration&#039; ), 20 );
	}

	/**
	 * Loads the metabox integration.
	 *
	 * @return void
	 */
	public function load_metabox_integration() {
		WPSEO_Meta_Video::init();
	}

	/**
	 * Loads the sitemap integration.
	 *
	 * @return void
	 */
	public function load_sitemap_integration() {
		$GLOBALS[&#039;wpseo_video_xml&#039;] = new WPSEO_Video_Sitemap();
	}

	/**
	 * Loads the Schema integration.
	 *
	 * @return void
	 */
	public function load_schema_integration() {
		$GLOBALS[&#039;wpseo_video_schema&#039;] = new WPSEO_Video_Schema();
	}

	/**
	 * Checks if the plugin can be activated.
	 *
	 * @return bool True if the plugin has the environment to work in.
	 */
	protected function can_activate() {
		if ( ! $this-&gt;is_spl_autoload_available() ) {
			$this-&gt;add_admin_notice(
				esc_html__(
					&#039;The PHP SPL extension seems to be unavailable. Please ask your web host to enable it.&#039;,
					&#039;yoast-video-seo&#039;
				),
				true
			);
		}

		if ( ! $this-&gt;is_wordpress_up_to_date() ) {
			$this-&gt;add_admin_notice(
				esc_html__(
					&#039;Please upgrade WordPress to the latest version to allow WordPress and the Video SEO module to work properly.&#039;,
					&#039;yoast-video-seo&#039;
				)
			);
		}

		if ( ! $this-&gt;is_yoast_seo_active() ) {
			$this-&gt;add_admin_notice( $this-&gt;get_wpseo_missing_error() );
		}

		// Allow beta version.
		if ( $this-&gt;is_yoast_seo_active() &amp;&amp; ! $this-&gt;is_yoast_seo_up_to_date() ) {
			$this-&gt;add_admin_notice(
				sprintf(
					/* translators: $1$s expands to Yoast SEO. */
					esc_html__(
						&#039;Please upgrade the %1$s plugin to the latest version to allow the Video SEO module to work.&#039;,
						&#039;yoast-video-seo&#039;
					),
					&#039;Yoast SEO&#039;
				)
			);
		}

		return empty( $this-&gt;admin_notices );
	}

	/**
	 * Retrieves the message to show to make sure Yoast SEO gets activated.
	 *
	 * @return string The message to present to the user.
	 */
	protected function get_wpseo_missing_error() {
		if ( ! $this-&gt;user_can_activate_plugins() ) {
			return $this-&gt;get_install_by_admin_message();
		}

		return $this-&gt;get_install_plugin_message();
	}

	/**
	 * Queues an admin notification.
	 *
	 * @param string $message    Message to be shown.
	 * @param bool   $use_prefix Optional. Use the default prefix or not.
	 *
	 * @return void
	 */
	protected function add_admin_notice( $message, $use_prefix = false ) {
		$prefix = &#039;&#039;;

		if ( $use_prefix ) {
			$prefix = esc_html( $this-&gt;get_admin_notice_prefix() ) . &#039; &#039;;
		}

		$this-&gt;admin_notices[] = $prefix . $message;
	}

	/**
	 * Registers the admin notices hooks to display messages.
	 *
	 * @return void
	 */
	protected function add_admin_notices_hook() {
		$hook = &#039;admin_notices&#039;;
		if ( $this-&gt;use_multisite_notifications() ) {
			$hook = &#039;network_&#039; . $hook;
		}

		add_action( $hook, array( $this, &#039;show_admin_notices&#039; ) );
	}

	/**
	 * Displays an admin notice.
	 *
	 * @param string $admin_notice Notice to display.
	 *
	 * @return void
	 */
	protected function display_admin_notice( $admin_notice ) {
		echo &#039;&lt;div class=&quot;error&quot;&gt;&lt;p&gt;&#039; . $admin_notice . &#039;&lt;/p&gt;&lt;/div&gt;&#039;;
	}

	/**
	 * Checks if the user can install or activate plugins.
	 *
	 * @return bool True if the user can activate plugins.
	 */
	protected function user_can_activate_plugins() {
		return current_user_can( &#039;install_plugins&#039; ) || current_user_can( &#039;activate_plugins&#039; );
	}

	/**
	 * Checks if the current request is an iFrame request.
	 *
	 * @return bool True if this request is an iFrame request.
	 */
	protected function is_iframe_request() {
		return defined( &#039;IFRAME_REQUEST&#039; ) &amp;&amp; IFRAME_REQUEST !== false;
	}

	/**
	 * Checks whether we should use multisite notifications or not.
	 *
	 * @return bool True if we want to use multisite notifications.
	 */
	protected function use_multisite_notifications() {
		return is_multisite() &amp;&amp; is_network_admin();
	}

	/**
	 * Retrieves the plugin page URL to use.
	 *
	 * @return string Plugin page URL to use.
	 */
	protected function get_plugin_page_url() {
		$page_slug = &#039;plugin-install.php&#039;;

		if ( $this-&gt;use_multisite_plugin_page() ) {
			return network_admin_url( $page_slug );
		}

		return admin_url( $page_slug );
	}

	/**
	 * Checks if we should use the multisite plugin page.
	 *
	 * @return bool True if we are on multisite and super admin.
	 */
	protected function use_multisite_plugin_page() {
		return is_multisite() === true &amp;&amp; is_super_admin();
	}

	/**
	 * Checks if SPL Autoload is available.
	 *
	 * @return bool True if SPL Autoload is available.
	 */
	protected function is_spl_autoload_available() {
		return function_exists( &#039;spl_autoload_register&#039; );
	}

	/**
	 * Checks if WordPress is at a mimimal required version.
	 *
	 * @return bool True if WordPress is at a minimal required version.
	 */
	protected function is_wordpress_up_to_date() {
		return version_compare( $GLOBALS[&#039;wp_version&#039;], &#039;5.2&#039;, &#039;&gt;=&#039; );
	}

	/**
	 * Checks if Yoast SEO is active.
	 *
	 * @return bool True if Yoast SEO is active.
	 */
	public function is_yoast_seo_active() {
		return defined( &#039;WPSEO_VERSION&#039; );
	}

	/**
	 * Checks if Yoast SEO is at a minimum required version.
	 *
	 * @return bool True if Yoast SEO is at a minimal required version.
	 */
	protected function is_yoast_seo_up_to_date() {
		return $this-&gt;is_yoast_seo_active() &amp;&amp; version_compare( WPSEO_VERSION, &#039;12.8-RC0&#039;, &#039;&gt;=&#039; );
	}

	/**
	 * Returns the admin notice prefix string.
	 *
	 * @return string The string to prefix the admin notice with.
	 */
	protected function get_admin_notice_prefix() {
		return __( &#039;Activation of Video SEO failed:&#039;, &#039;yoast-video-seo&#039; );
	}

	/**
	 * Generates the message to display to install Yoast SEO by proxy.
	 *
	 * @return string The message to show to inform the user to install Yoast SEO.
	 */
	protected function get_install_by_admin_message() {
		return sprintf(
			/* translators: %1$s expands to Yoast SEO. */
			esc_html__(
				&#039;Please ask the (network) admin to install &amp; activate %1$s and then enable its XML sitemap functionality to allow the Video SEO module to work.&#039;,
				&#039;yoast-video-seo&#039;
			),
			&#039;Yoast SEO&#039;
		);
	}

	/**
	 * Generates the message to display to install Yoast SEO.
	 *
	 * @return string The message to show to inform the user to install Yoast SEO.
	 */
	protected function get_install_plugin_message() {
		$url = add_query_arg(
			array(
				&#039;tab&#039;                 =&gt; &#039;search&#039;,
				&#039;type&#039;                =&gt; &#039;term&#039;,
				&#039;s&#039;                   =&gt; &#039;wordpress+seo&#039;,
				&#039;plugin-search-input&#039; =&gt; &#039;Search+Plugins&#039;,
			),
			$this-&gt;get_plugin_page_url()
		);

		return sprintf(
			/* translators: %1$s and %3$s expand to anchor tags with a link to the download page for Yoast SEO . %2$s expands to Yoast SEO. */
			esc_html__(
				&#039;Please %1$sinstall &amp; activate %2$s%3$s and then enable its XML sitemap functionality to allow the Video SEO module to work.&#039;,
				&#039;yoast-video-seo&#039;
			),
			&#039;&lt;a href=&quot;&#039; . esc_url( $url ) . &#039;&quot;&gt;&#039;,
			&#039;Yoast SEO&#039;,
			&#039;&lt;/a&gt;&#039;
		);
	}
}
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