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<?php
/**
* @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( 'admin_init', array( 'WPSEO_Video_Utils', 'load_textdomain' ), 1 );
$can_activate = $this->can_activate();
if ( ! $can_activate ) {
$this->add_admin_notices_hook();
return;
}
$this->add_integration_hooks();
}
/**
* Shows any queued admin notices.
*
* @return void
*/
public function show_admin_notices() {
if ( empty( $this->admin_notices ) ) {
return;
}
if ( $this->is_iframe_request() ) {
return;
}
foreach ( $this->admin_notices as $admin_notice ) {
$this->display_admin_notice( $admin_notice );
}
}
/**
* Adds hooks to load the video integrations.
*
* @return void
*/
protected function add_integration_hooks() {
add_action( 'plugins_loaded', array( $this, 'load_metabox_integration' ), 10 );
add_action( 'plugins_loaded', array( $this, 'load_sitemap_integration' ), 20 );
add_action( 'plugins_loaded', array( $this, 'load_schema_integration' ), 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['wpseo_video_xml'] = new WPSEO_Video_Sitemap();
}
/**
* Loads the Schema integration.
*
* @return void
*/
public function load_schema_integration() {
$GLOBALS['wpseo_video_schema'] = 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->is_spl_autoload_available() ) {
$this->add_admin_notice(
esc_html__(
'The PHP SPL extension seems to be unavailable. Please ask your web host to enable it.',
'yoast-video-seo'
),
true
);
}
if ( ! $this->is_wordpress_up_to_date() ) {
$this->add_admin_notice(
esc_html__(
'Please upgrade WordPress to the latest version to allow WordPress and the Video SEO module to work properly.',
'yoast-video-seo'
)
);
}
if ( ! $this->is_yoast_seo_active() ) {
$this->add_admin_notice( $this->get_wpseo_missing_error() );
}
// Allow beta version.
if ( $this->is_yoast_seo_active() && ! $this->is_yoast_seo_up_to_date() ) {
$this->add_admin_notice(
sprintf(
/* translators: $1$s expands to Yoast SEO. */
esc_html__(
'Please upgrade the %1$s plugin to the latest version to allow the Video SEO module to work.',
'yoast-video-seo'
),
'Yoast SEO'
)
);
}
return empty( $this->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->user_can_activate_plugins() ) {
return $this->get_install_by_admin_message();
}
return $this->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 = '';
if ( $use_prefix ) {
$prefix = esc_html( $this->get_admin_notice_prefix() ) . ' ';
}
$this->admin_notices[] = $prefix . $message;
}
/**
* Registers the admin notices hooks to display messages.
*
* @return void
*/
protected function add_admin_notices_hook() {
$hook = 'admin_notices';
if ( $this->use_multisite_notifications() ) {
$hook = 'network_' . $hook;
}
add_action( $hook, array( $this, 'show_admin_notices' ) );
}
/**
* Displays an admin notice.
*
* @param string $admin_notice Notice to display.
*
* @return void
*/
protected function display_admin_notice( $admin_notice ) {
echo '<div class="error"><p>' . $admin_notice . '</p></div>';
}
/**
* 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( 'install_plugins' ) || current_user_can( 'activate_plugins' );
}
/**
* 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( 'IFRAME_REQUEST' ) && 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() && 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 = 'plugin-install.php';
if ( $this->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 && 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( 'spl_autoload_register' );
}
/**
* 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['wp_version'], '4.9', '>=' );
}
/**
* Checks if Yoast SEO is active.
*
* @return bool True if Yoast SEO is active.
*/
public function is_yoast_seo_active() {
return defined( 'WPSEO_VERSION' );
}
/**
* 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() {
// At least 11.9, in which we've refactored the metabox API for addons.
return $this->is_yoast_seo_active() && version_compare( WPSEO_VERSION, '11.9-beta0', '>=' );
}
/**
* Returns the admin notice prefix string.
*
* @return string The string to prefix the admin notice with.
*/
protected function get_admin_notice_prefix() {
return __( 'Activation of Video SEO failed:', 'yoast-video-seo' );
}
/**
* Generates the message to display to install Yoast SEO by proxy.
*
* @return string The message to show to inform the user to install Yoast SEO.
*/
protected function get_install_by_admin_message() {
return sprintf(
/* translators: %1$s expands to Yoast SEO. */
esc_html__(
'Please ask the (network) admin to install & activate %1$s and then enable its XML sitemap functionality to allow the Video SEO module to work.',
'yoast-video-seo'
),
'Yoast SEO'
);
}
/**
* 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(
'tab' => 'search',
'type' => 'term',
's' => 'wordpress+seo',
'plugin-search-input' => 'Search+Plugins',
),
$this->get_plugin_page_url()
);
return sprintf(
/* translators: %1$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__(
'Please %1$sinstall & activate %2$s%3$s and then enable its XML sitemap functionality to allow the Video SEO module to work.',
'yoast-video-seo'
),
'<a href="' . esc_url( $url ) . '">',
'Yoast SEO',
'</a>'
);
}
}