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Current File : /srv/wp/nallaram.agtdemo.in/www/wp-content/plugins/envira-gallery-lite/includes/admin/addons.php
<?php
/**
 * Addons class.
 *
 * @since 1.5.0
 *
 * @package Envira_Gallery
 * @author  David Bisset
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Addons Helper
 *
 * @since 1.5.0
 */
class Envira_Gallery_Addons {

	/**
	 * Holds the class object.
	 *
	 * @since 1.5.0
	 *
	 * @var object
	 */
	public static $instance = null;

	/**
	 * Path to the file.
	 *
	 * @since 1.5.0
	 *
	 * @var string
	 */
	public $file = __FILE__;

	/**
	 * Holds the base class object.
	 *
	 * @since 1.5.0
	 *
	 * @var object
	 */
	public $base;

	/**
	 * Holds the submenu pagehook.
	 *
	 * @since 1.5.0
	 *
	 * @var string
	 */
	public $hook;

	/**
	 * Holds License Key.
	 *
	 * @var string
	 */
	public $key;

	/**
	 * Primary class constructor.
	 *
	 * @since 1.5.0
	 */
	public function __construct() {

		// Load the base class object.
		$this->base = Envira_Gallery_Lite::get_instance();

		// Add custom addons submenu.
		add_action( 'admin_menu', [ $this, 'admin_menu' ], 12 );

		// Add callbacks for addons tabs.
		add_action( 'envira_gallery_addons_section', [ $this, 'addons_content' ] );

		// Add the addons menu item to the Plugins table.
		add_filter( 'plugin_action_links_' . plugin_basename( $this->base->file ), [ $this, 'addons_link' ] );
	}

	/**
	 * Register the Addons submenu item for Envira.
	 *
	 * @since 1.5.0
	 */
	public function admin_menu() {

		// Register the submenu.
		$this->hook = add_submenu_page(
			'edit.php?post_type=envira',
			__( 'Envira Gallery Addons', 'envira-gallery-lite' ),
			'<span style="color:#7cc048"> ' . __( 'Addons', 'envira-gallery-lite' ) . '</span>',
			apply_filters( 'envira_gallery_menu_cap', 'manage_options' ),
			$this->base->plugin_slug . '-addons',
			[ $this, 'addons_page' ]
		);

		// If successful, load admin assets only on that page and check for addons refresh.
		if ( $this->hook ) {
			add_action( 'load-' . $this->hook, [ $this, 'maybe_refresh_addons' ] );
			add_action( 'load-' . $this->hook, [ $this, 'addons_page_assets' ] );
		}
	}

	/**
	 * Maybe refreshes the addons page.
	 *
	 * @since 1.5.0
	 *
	 * @return void Return early if not refreshing the addons.
	 */
	public function maybe_refresh_addons() {

		if ( ! $this->is_refreshing_addons() ) {
			return;
		}

		if ( ! $this->refresh_addons_action() ) {
			return;
		}

		$this->get_addons_data( $this->base->get_license_key() );
	}

	/**
	 * Loads assets for the addons page.
	 *
	 * @since 1.5.0
	 */
	public function addons_page_assets() {

		add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_admin_styles' ] );
		add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_admin_scripts' ] );
	}

	/**
	 * Register and enqueue addons page specific CSS.
	 *
	 * @since 1.5.0
	 */
	public function enqueue_admin_styles() {

		wp_register_style( $this->base->plugin_slug . '-addons-style', plugins_url( 'assets/css/addons.css', $this->base->file ), [], $this->base->version );
		wp_enqueue_style( $this->base->plugin_slug . '-addons-style' );

		// Run a hook to load in custom styles.
		do_action( 'envira_gallery_addons_styles' );
	}

	/**
	 * Register and enqueue addons page specific JS.
	 *
	 * @since 1.5.0
	 */
	public function enqueue_admin_scripts() {

		// List.js.
		wp_register_script( $this->base->plugin_slug . '-list-script', plugins_url( 'assets/js/min/list-min.js', $this->base->file ), [ 'jquery' ], $this->base->version, true );
		wp_enqueue_script( $this->base->plugin_slug . '-list-script' );

		// Addons.
		wp_register_script( $this->base->plugin_slug . '-addons-script', plugins_url( 'assets/js/addons.js', $this->base->file ), [ 'jquery' ], $this->base->version, true );
		wp_enqueue_script( $this->base->plugin_slug . '-addons-script' );
		wp_localize_script(
			$this->base->plugin_slug . '-addons-script',
			'envira_gallery_addons',
			[
				'activate_nonce'   => wp_create_nonce( 'envira-gallery-activate' ),
				'active'           => __( 'Status: Active', 'envira-gallery-lite' ),
				'activate'         => __( 'Activate', 'envira-gallery-lite' ),
				'get_addons_nonce' => wp_create_nonce( 'envira-gallery-get-addons' ),
				'activating'       => __( 'Activating...', 'envira-gallery-lite' ),
				'ajax'             => admin_url( 'admin-ajax.php' ),
				'deactivate'       => __( 'Deactivate', 'envira-gallery-lite' ),
				'deactivate_nonce' => wp_create_nonce( 'envira-gallery-deactivate' ),
				'deactivating'     => __( 'Deactivating...', 'envira-gallery-lite' ),
				'inactive'         => __( 'Status: Inactive', 'envira-gallery-lite' ),
				'install'          => __( 'Install', 'envira-gallery-lite' ),
				'install_nonce'    => wp_create_nonce( 'envira-gallery-install' ),
				'installing'       => __( 'Installing...', 'envira-gallery-lite' ),
				'proceed'          => __( 'Proceed', 'envira-gallery-lite' ),
			]
		);

		// Run a hook to load in custom scripts.
		do_action( 'envira_gallery_addons_scripts' );
	}

	/**
	 * Callback to output the Envira addons page.
	 *
	 * @since 1.5.0
	 */
	public function addons_page() {

		do_action( 'envira_head' );
		?>

		<div id="addon-heading" class="subheading clearfix">
			<h1><?php esc_html_e( 'Envira Gallery Addons', 'envira-gallery-lite' ); ?></h1>
			<form id="add-on-search">
				<span class="spinner"></span>
				<input id="add-on-searchbox" name="envira-addon-search" value="" placeholder="<?php esc_attr_e( 'Search Envira Addons', 'envira-gallery-lite' ); ?>" />
				<select id="envira-filter-select">
					<option value="sort-order"><?php esc_html_e( 'Most Popular', 'envira-gallery-lite' ); ?></option>
					<option value="asc"><?php esc_html_e( 'Sort Ascending (A-Z)', 'envira-gallery-lite' ); ?></option>
					<option value="desc"><?php esc_html_e( 'Sort Descending (Z-A)', 'envira-gallery-lite' ); ?></option>
				</select>
			</form>
		</div>

		<div id="envira-gallery-addons" class="wrap">
			<div class="envira-gallery envira-clear">
				<?php do_action( 'envira_gallery_addons_section' ); ?>
			</div>
		</div>
		<?php
	}

	/**
	 * Callback for displaying the UI for Addons.
	 *
	 * @since 1.5.0
	 */
	public function addons_content() {

		// If error(s) occured during license key verification, display them and exit now.
		if ( false !== $this->base->get_license_key_errors() ) {
			?>
			<div class="error below-h2">
				<p>
					<?php esc_html_e( 'In order to get access to Addons, you need to resolve your license key errors.', 'envira-gallery-lite' ); ?>
				</p>
			</div>
			<?php
			return;
		}

		// Get Addons.
		$addons = $this->get_addons();

		// If no Addon(s) were returned, our API call returned an error.
		// Show an error message with a button to reload the page, which will trigger another API call.
		if ( ! $addons ) {
			?>
			<form id="envira-addons-refresh-addons-form" method="post">
				<p>
					<?php esc_html_e( 'There was an issue retrieving the addons for this site. Please click on the button below the refresh the addons data.', 'envira-gallery-lite' ); ?>
				</p>
				<p>
					<?php if ( ! empty( $_SERVER['REQUEST_URI'] ) ) { ?>
					<a href="<?php echo esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ); ?>" class="button envira-button-dark"><?php esc_html_e( 'Refresh Addons', 'envira-gallery-lite' ); ?></a>
					<?php } ?>
				</p>
			</form>
			<?php
			return;
		}

		// If here, we have Addons to display, so let's output them now.
		// Get installed plugins and upgrade URL.
		$installed_plugins = get_plugins();
		$upgrade_url       = Envira_Gallery_Common_Admin::get_instance()->get_upgrade_link();
		?>
		<div id="envira-addons">
			<?php
			// Output Addons the User is licensed to use.
			if ( count( $addons['licensed'] ) > 0 ) {

				// sort by sort order (Popular) first by default.
				usort( $addons['licensed'], [ $this, 'sort_data_by_sort_order' ] );

				?>
				<div id="envira-addons-area-license" class="envira-addons-area licensed" class="envira-clear">
					<h3><?php esc_html_e( 'Available Addons', 'envira-gallery-lite' ); ?></h3>

					<div id="envira-addons-licensed" class="envira-addons">
						<!-- list container class required for list.js -->
						<div class="list">
							<?php
							foreach ( (array) $addons['licensed'] as $i => $addon ) {
								$this->get_addon_card( $addon, $i, true, $installed_plugins );
							}
							?>
						</div>
					</div>
				</div>
				<?php
			} // Close licensed addons

			// Output Addons the User isn't licensed to use.
			if ( count( $addons['unlicensed'] ) > 0 ) {

				// sort by sort order (Popular) first by default.
				usort( $addons['unlicensed'], [ $this, 'sort_data_by_sort_order' ] );

				?>
				<div id="envira-addons-area-unlicensed" class="envira-addons-area unlicensed" class="envira-clear">
					<h3><?php esc_html_e( 'Unlock More Addons', 'envira-gallery-lite' ); ?></h3>
					<?php /* translators: %s: url */ ?>
					<p><?php printf( wp_kses_post( __( '<strong>Want even more addons?</strong> <a href="%s">Upgrade your Envira Gallery account</a> and unlock the following addons.', 'envira-gallery-lite' ) ), esc_url( $upgrade_url ) ); ?></p>

					<div id="envira-addons-unlicensed" class="envira-addons">
						<?php
						foreach ( (array) $addons['unlicensed'] as $i => $addon ) {
							$this->get_addon_card( $addon, $i, false, $installed_plugins );
						}
						?>
					</div>
				</div>
				<?php
			} // Close unlicensed addons
			?>
		</div>
		<?php
	}

	/**
	 * Sorts by Sort order.
	 *
	 * @since 1.5.0
	 *
	 * @param   object $a    First element.
	 * @param   object $b    First element.
	 */
	public function sort_data_by_sort_order( $a, $b ) {
		return $b->sort_order - $a->sort_order;
	}

	/**
	 * Retrieves addons from the stored transient or remote server.
	 *
	 * @since 1.5.0
	 *
	 * @return bool | array    false | Array of licensed and unlicensed Addons.
	 */
	public function get_addons() {

		// Get license key and type.
		$key    = $this->base->get_license_key();
		$type   = $this->base->get_license_key_type();
		$addons = get_transient( '_eg_addons' );

		// Get addons data from transient or perform API query if no transient.
		if ( false === $addons ) {
			$addons = $this->get_addons_data( $key );
		}

		// If no Addons exist, return false.
		if ( ! $addons ) {
			return false;
		}

		// Iterate through Addons, to build two arrays:
		// - Addons the user is licensed to use,
		// - Addons the user isn't licensed to use.
		$results = [
			'licensed'   => [],
			'unlicensed' => [],
		];
		foreach ( (array) $addons as $i => $addon ) {

			if ( empty( $addon->sort_order ) ) {
				$addon->sort_order = 0; // assign a default sort order.
			}

			// Determine whether the user is licensed to use this Addon or not.
			if (
				empty( $type ) ||
				( in_array( 'advanced', $addon->categories, true ) && 'gold' !== $type && 'platinum' !== $type ) ||
				( in_array( 'basic', $addon->categories, true ) && ( 'silver' !== $type && 'gold' !== $type && 'platinum' !== $type ) )
			) {
				// Unlicensed.
				$results['unlicensed'][] = $addon;
				continue;
			}

			// Licensed.
			$results['licensed'][] = $addon;

		}

		// Return Addons, split by licensed and unlicensed.
		return $results;
	}

	/**
	 * Pings the remote server for addons data.
	 *
	 * @since 1.5.0
	 *
	 * @param   string $key    The user license key.
	 * @return  array               Array of addon data otherwise.
	 */
	public function get_addons_data( $key ) {

		$this->key = $key;

		// Get Addons
		// If the key is valid, we'll get personalised upgrade URLs for each Addon (if necessary) and plugin update information.
		$addons = $this->perform_remote_request( 'get-addons-data-v15', [ 'tgm-updater-key' => $key ] );

		// If there was an API error, set transient for only 10 minutes.
		if ( ! $addons ) {
			set_transient( '_eg_addons', false, 10 * MINUTE_IN_SECONDS );
			return false;
		}

		// If there was an error retrieving the addons, set the error.
		if ( isset( $addons->error ) ) {
			set_transient( '_eg_addons', false, 10 * MINUTE_IN_SECONDS );
			return false;
		}

		// Otherwise, our request worked. Save the data and return it.
		set_transient( '_eg_addons', $addons, DAY_IN_SECONDS );
		return $addons;
	}

	/**
	 * Flag to determine if addons are being refreshed.
	 *
	 * @since 1.5.0
	 *
	 * @return bool True if being refreshed, false otherwise.
	 */
	public function is_refreshing_addons() {

		return isset( $_POST['envira-gallery-refresh-addons'] ); // @codingStandardsIgnoreLine
	}

	/**
	 * Verifies nonces that allow addon refreshing.
	 *
	 * @since 1.5.0
	 *
	 * @return bool True if nonces check out, false otherwise.
	 */
	public function refresh_addons_action() {

		return isset( $_POST['envira-gallery-refresh-addons'] ) && wp_verify_nonce( sanitize_key( $_POST['envira-gallery-refresh-addons'] ), 'envira-gallery-refresh-addons' );
	}

	/**
	 * Retrieve the plugin basename from the plugin slug.
	 *
	 * @since 1.5.0
	 *
	 * @param string $slug The plugin slug.
	 * @return string      The plugin basename if found, else the plugin slug.
	 */
	public function get_plugin_basename_from_slug( $slug ) {

		$keys = array_keys( get_plugins() );

		foreach ( $keys as $key ) {
			if ( preg_match( '|^' . $slug . '|', $key ) ) {
				return $key;
			}
		}

		return $slug;
	}

	/**
	 * Add Addons page to plugin action links in the Plugins table.
	 *
	 * @since 1.5.0
	 *
	 * @param   array $links    Default plugin action links.
	 * @return  array   $links    Amended plugin action links.
	 */
	public function addons_link( $links ) {

		$addons_link = sprintf(
			'<a href="%s">%s</a>',
			esc_url(
				add_query_arg(
					[
						'post_type' => 'envira',
						'page'      => 'envira-gallery-lite-addons',
					],
					admin_url( 'edit.php' )
				)
			),
			__( 'Addons', 'envira-gallery-lite' )
		);
		array_unshift( $links, $addons_link );

		// If lite, show a link where they can get pro from.
		if ( ! class_exists( 'Envira_Gallery' ) ) {
			$get_pro = '<a title="' . esc_attr__( 'Get Envira Gallery Pro', 'envira-gallery-lite' ) . '" target="_blank" rel="noopener" href="' . Envira_Gallery_Common_Admin::get_instance()->get_upgrade_link( 'https://enviragallery.com/lite', 'pluginlisting', 'liteplugin' ) . '" style="font-weight:700; color: #1da867;">' . esc_html__( 'Get Envira Gallery Pro', 'envira-gallery-lite' ) . '</a>';
			array_unshift( $links, $get_pro );
		}

		return $links;
	}

	/**
	 * Outputs the addon "box" on the addons page.
	 *
	 * @since 1.5.0
	 *
	 * @param   object $addon              Addon data from the API / transient call.
	 * @param   int    $counter            Index of this Addon in the collection.
	 * @param   bool   $is_licensed        Whether the Addon is licensed for use.
	 * @param   array  $installed_plugins  Installed WordPress Plugins.
	 */
	public function get_addon_card( $addon, $counter = 0, $is_licensed = false, $installed_plugins = false ) {

		// Setup some vars.
		$plugin_basename = $this->get_plugin_basename_from_slug( $addon->slug );
		$categories      = implode( ',', $addon->categories );
		if ( ! $installed_plugins ) {
			$installed_plugins = get_plugins();
		}

		// If the Addon doesn't supply an upgrade_url key, it's because the user hasn't provided a license
		// get_upgrade_link() will return the Lite or Pro link as necessary for us.
		if ( ! isset( $addon->upgrade_url ) ) {
			$addon->upgrade_url = Envira_Gallery_Common_Admin::get_instance()->get_upgrade_link( false, 'addonspage', str_replace( '-', '', str_replace( 'envira-', '', $addon->slug ) ) . 'addonupgradenowbutton' );
		}

		$sort_order   = isset( $addon->sort_order ) && false !== $addon->sort_order ? intval( $addon->sort_order ) : 0;
		$most_popular = isset( $addon->most_popular ) && false !== $addon->most_popular ? true : false;

		// Output the card.
		?>
		<div class="envira-addon" data-addon-title="<?php echo esc_html( $addon->title ); ?>" data-sort-order="<?php echo esc_attr( $sort_order ); ?>">
			<?php if ( $most_popular ) { ?>
				<div class="addon-tag">Most Popular</div>
			<?php } ?>
			<h3 class="envira-addon-title"><?php echo esc_html( $addon->title ); ?></h3>
			<?php
			if ( ! empty( $addon->image ) ) {
				?>
				<img class="envira-addon-thumb" src="<?php echo esc_url( $addon->image ); ?>" alt="<?php echo esc_attr( $addon->title ); ?>" />
				<?php
			}
			?>

			<p class="envira-addon-excerpt"><?php echo esc_html( $addon->excerpt ); ?></p>

			<?php
			// If the Addon is unlicensed, show the upgrade button.
			if ( ! $is_licensed ) {
				?>
				<div class="envira-addon-active envira-addon-message">
					<div class="interior">
						<div class="envira-addon-upgrade">
							<a href="<?php echo esc_url( $addon->upgrade_url ); ?>" target="_blank" class="button envira-button-dark envira-addon-upgrade-button"  rel="<?php echo esc_attr( $plugin_basename ); ?>">
								<?php esc_html_e( 'Upgrade Now', 'envira-gallery-lite' ); ?>
							</a>
							<span class="spinner envira-gallery-spinner"></span>
						</div>
					</div>
				</div>
				<?php
				// Addon is licensed.
				// If the plugin is not installed, display an install message and button.
			} elseif ( ! isset( $installed_plugins[ $plugin_basename ] ) ) {
				?>
				<div class="envira-addon-not-installed envira-addon-message">
					<div class="interior">
						<span class="addon-status"><?php esc_html_e( 'Status:', 'envira-gallery-lite' ); ?>&nbsp;<span><?php esc_html_e( 'Not Installed', 'envira-gallery-lite' ); ?></span></span>
						<div class="envira-addon-action">
							<a class="button envira-button-dark envira-addon-action-button envira-install-addon" href="#" rel="<?php echo esc_url( $addon->url ); ?>">
								<i class="envira-cloud-download"></i>
								<?php esc_html_e( 'Install', 'envira-gallery-lite' ); ?>
							</a>
							<span class="spinner envira-gallery-spinner"></span>
						</div>
					</div>
				</div>
				<?php
				// Plugin is installed.
			} elseif ( is_plugin_active( $plugin_basename ) ) {
				// Plugin is active. Display the active message and deactivate button.
				?>
				<div class="envira-addon-active envira-addon-message">
					<div class="interior">
						<span class="addon-status"><?php esc_html_e( 'Status:', 'envira-gallery-lite' ); ?>&nbsp;<span><?php esc_html_e( 'Active', 'envira-gallery-lite' ); ?></span></span>
						<div class="envira-addon-action">
							<a class="button envira-button-dark envira-addon-action-button envira-deactivate-addon" href="#" rel="<?php echo esc_attr( $plugin_basename ); ?>">
								<i class="envira-toggle-on"></i>
								<?php esc_html_e( 'Deactivate', 'envira-gallery-lite' ); ?>
							</a>
							<span class="spinner envira-gallery-spinner"></span>
						</div>
					</div>
				</div>
				<?php
			} else {
				// Plugin is inactivate. Display the inactivate mesage and activate button.
				?>
				<div class="envira-addon-inactive envira-addon-message">
					<div class="interior">
						<span class="addon-status"><?php esc_html_e( 'Status:', 'envira-gallery-lite' ); ?>&nbsp;<span><?php esc_html_e( 'Inactive', 'envira-gallery-lite' ); ?></span></span>
						<div class="envira-addon-action">
							<a class="button envira-button-dark envira-addon-action-button envira-activate-addon" href="#" rel="<?php echo esc_attr( $plugin_basename ); ?>">
								<i class="envira-toggle-on"></i>
								<?php esc_html_e( 'Activate', 'envira-gallery-lite' ); ?>
							</a>
							<span class="spinner envira-gallery-spinner"></span>
						</div>
					</div>
				</div>
				<?php
			}
			?>
		</div>
		<?php
	}
	/**
	 * Queries the remote URL via wp_remote_post and returns a json decoded response.
	 *
	 * @since 1.0.0
	 *
	 * @param string $action        The name of the $_POST action var.
	 * @param array  $body           The content to retrieve from the remote URL.
	 * @param array  $headers        The headers to send to the remote URL.
	 * @param string $return_format The format for returning content from the remote URL.
	 * @return string|bool          Json decoded response on success, false on failure.
	 */
	public function perform_remote_request( $action, $body = [], $headers = [], $return_format = 'json' ) {

		// Build the body of the request.
		$body = wp_parse_args(
			$body,
			[
				'tgm-updater-action'     => $action,
				'tgm-updater-key'        => $this->key,
				'tgm-updater-wp-version' => get_bloginfo( 'version' ),
				'tgm-updater-referer'    => site_url(),
			]
		);
		$body = http_build_query( $body, '', '&' );

		// Build the headers of the request.
		$headers = wp_parse_args(
			$headers,
			[
				'Content-Type'   => 'application/x-www-form-urlencoded',
				'Content-Length' => strlen( $body ),
			]
		);

		// Setup variable for wp_remote_post.
		$post = [
			'headers' => $headers,
			'body'    => $body,
		];

		// Perform the query and retrieve the response.
		$response      = wp_remote_post( 'https://enviragallery.com', $post );
		$response_code = wp_remote_retrieve_response_code( $response );
		$response_body = wp_remote_retrieve_body( $response );

		// Bail out early if there are any errors.
		if ( 200 !== $response_code || is_wp_error( $response_body ) ) {
			return false;
		}

		// Return the json decoded content.
		return json_decode( $response_body );
	}

	/**
	 * Returns the singleton instance of the class.
	 *
	 * @since 1.5.0
	 *
	 * @return object The Envira_Gallery_Addons object.
	 */
	public static function get_instance() {

		if ( ! isset( self::$instance ) && ! ( self::$instance instanceof Envira_Gallery_Addons ) ) {
			self::$instance = new Envira_Gallery_Addons();
		}

		return self::$instance;
	}
}

// Load the addons class.
$envira_gallery_addons = Envira_Gallery_Addons::get_instance();

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