# powerkit/2.2.9/extensions/connect/class-powerkit-connect.php

Powerkit – Supercharge your WordPress Site, version 2.2.9. 1,069 lines.

- Page: https://pluginprobe.com/plugins/powerkit/2.2.9/code/extensions/connect/class-powerkit-connect.php
- Raw: https://pluginprobe.com/plugins/powerkit/2.2.9/raw/extensions/connect/class-powerkit-connect.php
- Modified: 2020-07-23T12:03:52+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/powerkit/2.2.9/code/extensions/connect/class-powerkit-connect.php#L10-L20`.

```php
<?php
/**
 * Connect
 *
 * @package    Powerkit
 * @subpackage Extensions
 */

/**
 * Init module
 */
class Powerkit_Connect extends Powerkit_Module {

	/**
	 * Register module
	 */
	public function register() {
		$this->name     = 'connect';
		$this->slug     = 'connect';
		$this->type     = 'extension';
		$this->category = 'basic';
		$this->public   = false;
		$this->enabled  = true;
	}

	/**
	 * Initialize module
	 */
	public function initialize() {
		add_action( 'powerkit_plugin_activation', array( $this, 'activation' ) );
		add_action( 'powerkit_plugin_deactivation', array( $this, 'deactivation' ) );
		add_action( 'event_access_token_refresh', array( $this, 'cron_access_token_refresh' ) );
		add_action( 'admin_menu', array( $this, 'register_options_page' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
		add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
		add_action( 'wp_ajax_powerkit_reset_cache', array( $this, 'ajax_reset_cache' ) );
		add_action( 'wp_ajax_nopriv_powerkit_reset_cache', array( $this, 'ajax_reset_cache' ) );
	}

	/**
	 * Plugin activation
	 *
	 * @param bool $networkwide The networkwide.
	 */
	public function activation( $networkwide ) {
		if ( ! wp_next_scheduled( 'event_access_token_refresh' ) ) {
			wp_schedule_event( time(), 'daily', 'event_access_token_refresh' );
		}
	}

	/**
	 * Plugin activation
	 *
	 * @param bool $networkwide The networkwide.
	 */
	public function deactivation( $networkwide ) {
		wp_clear_scheduled_hook( 'event_access_token_refresh' );
	}

	/**
	 * Register admin page
	 *
	 * @since 1.0.0
	 */
	public function register_options_page() {
		add_options_page( esc_html__( 'Connect', 'powerkit' ), esc_html__( 'Connect', 'powerkit' ), 'manage_options', powerkit_get_page_slug( $this->slug ), array( $this, 'build_options_page' ) );
	}

	/**
	 * Build admin page
	 *
	 * @since 1.0.0
	 */
	public function build_options_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You do not have sufficient rights to view this page.', 'powerkit' ) );
		}
		$this->logout_account();
		$this->save_options_page();
		$this->user_reset_cache();
		?>

			<div class="wrap">
				<h1><?php esc_html_e( 'Connect', 'powerkit' ); ?></h1>

				<div class="settings">
					<?php $connect_list = apply_filters( 'powerkit_register_connect_list', array() ); ?>

					<?php if ( $connect_list ) : ?>
						<div class="tabs">
							<?php
							$connect_list = array_values( $connect_list );

							$tab = isset( $_GET['tab'] ) ? esc_attr( $_GET['tab'] ) : $connect_list[0]['id']; // Input var ok; sanitization ok.
							?>

							<nav class="nav-tab-wrapper woo-nav-tab-wrapper">
								<?php
								foreach ( $connect_list as $item ) {
									$class = ( $item['id'] === $tab ) ? 'nav-tab-active' : ''; // Input var ok.
									printf(
										'<a class="nav-tab %4$s" href="%1$s&tab=%2$s">%3$s</a>',
										esc_url( powerkit_get_page_url( $this->slug ) ),
										esc_attr( $item['id'] ),
										esc_html( $item['name'] ),
										esc_attr( $class )
									);
								}
								?>
							</nav>

							<?php
							foreach ( $connect_list as $item ) {
								// Instagram tab.
								if ( 'instagram' === $item['id'] && $item['id'] === $tab ) { // Input var ok.
									?>
										<div id="tab-<?php echo esc_attr( $item['id'] ); ?>" class="tab-wrap">
											<?php $this->instagram_custom_tab( $tab ); ?>
										</div>
									<?php
									// Facebook tab.
								} elseif ( 'facebook' === $item['id'] && $item['id'] === $tab ) { // Input var ok.
									?>
										<div id="tab-<?php echo esc_attr( $item['id'] ); ?>" class="tab-wrap">
											<?php $this->facebook_custom_tab( $tab ); ?>
										</div>
									<?php
									// Twitter tab.
								} elseif ( 'twitter' === $item['id'] && $item['id'] === $tab ) { // Input var ok.
									?>
										<div id="tab-<?php echo esc_attr( $item['id'] ); ?>" class="tab-wrap">
											<?php $this->twitter_custom_tab( $tab ); ?>
										</div>
									<?php
								} elseif ( $item['id'] === $tab ) {
									?>
									<form class="basic" method="post">
										<div id="tab-<?php echo esc_attr( $item['id'] ); ?>" class="tab-wrap">
											<!-- Render Fields -->
											<?php
											if ( isset( $item['fields'] ) && $item['fields'] ) {
												?>
												<table class="form-table">
													<tbody>
														<?php
														foreach ( $item['fields'] as $field ) {
															?>
																<tr>
																	<th scope="row"><label class="title" for="<?php echo esc_attr( $field['key'] ); ?>"><?php echo esc_html( $field['caption'] ); ?></label></th>
																	<td>
																		<input class="regular-text" id="<?php echo esc_attr( $field['key'] ); ?>" name="<?php echo esc_attr( $field['key'] ); ?>" type="text" value="<?php echo esc_attr( powerkit_connect( $field['key'] ) ); ?>" />

																		<?php if ( isset( $field['instruction'] ) ) { ?>
																			<p><?php echo wp_kses_post( $field['instruction'] ); ?></p>
																		<?php } ?>
																	</td>
																</tr>
															<?php
														}
														?>
													</tbody>
												</table>
												<?php
											}
											?>
										</div>

										<?php wp_nonce_field(); ?>

										<p class="submit">
											<input class="button button-primary" name="save_settings" type="submit" value="<?php esc_html_e( 'Save changes', 'powerkit' ); ?>" />
										</p>
									</form>
									<?php
								}
							}
							?>
						</div>

						<hr>

						<form method="post" class="form-reset">
							<?php wp_nonce_field(); ?>

							<p class="submit"><input class="button" name="powerkit_reset_cache" type="submit" value="<?php esc_html_e( 'Reset cache', 'powerkit' ); ?>" /></p>
						</form>
					<?php else : ?>
						<p class="submit">
							<?php esc_html_e( 'The list of social network settings is empty!!!', 'powerkit' ); ?>
						</p>
					<?php endif; ?>
				</div>
			</div>

			<style>
			.tab-badge-success {
				display: inline-block;
				border: 1px solid #46b450;
				padding: 0.5rem 0.75rem;
				color: #32373c;
				font-weight: 600;
				border-radius: 5px;
				margin-top: 1rem;
			}
			</style>
		<?php
	}

	/**
	 * Get API data
	 *
	 * @param mixed $type The type of data.
	 */
	public function api_get_data( $type ) {

		wp_verify_nonce( null );

		if ( ! $type ) {
			return;
		}

		// Set types.
		$types = array();

		if ( is_string( $type ) ) {
			$types[] = $type;
		} elseif ( is_array( $type ) ) {
			$types = $type;
		}

		// Get data.
		if ( isset( $_REQUEST['api_data'] ) ) { // Input var ok; sanitization ok.

			$data = json_decode( base64_decode( $_REQUEST['api_data'] ), true );

			if ( ! is_array( $data ) ) {
				return;
			}

			if ( ! isset( $data['type'] ) || ! isset( $data['marker'] ) ) {
				return;
			}

			// Check type.
			if ( ! in_array( $data['type'], $types, true ) ) {
				return;
			}

			// Check marker.
			if ( get_transient( $data['marker'] ) ) {
				return;
			}

			// Add marker to DB.
			set_transient( $data['marker'], true, HOUR_IN_SECONDS );

			return $data;
		}
	}

	/**
	 * Get API message
	 *
	 * @param mixed $status The status of data.
	 */
	public function api_get_message( $status ) {

		$message = esc_html__( 'Something went wrong, please contact the plugin administrator.', 'powerkit' );

		// Check type status.
		if ( ! is_numeric( $status ) && is_string( $status ) ) {
			if ( empty( $status ) ) {
				$message = esc_html__( 'Failed to get status, please contact the plugin administrator.', 'powerkit' );
			}

			// If the status is a message.
			$message = $status;
		}

		// Common.
		if ( 200 === $status ) {
			$message = esc_html__( 'Successfully connected.', 'powerkit' );
		}
		if ( 201 === $status ) {
			$message = esc_html__( 'Successfully connected, please select a profile!', 'powerkit' );
		}
		if ( 401 === $status ) {
			$message = esc_html__( 'Access code not available.', 'powerkit' );
		}

		// Instagram.
		if ( 4101 === $status ) {
			$message = esc_html__( "Can't Get Short-Lived Token.", 'powerkit' );
		}
		if ( 4102 === $status ) {
			$message = esc_html__( "Can't Get Long-Lived Token.", 'powerkit' );
		}

		// Facebook.
		if ( 4201 === $status ) {
			$message = esc_html__( "Can't Get Short-Lived Token.", 'powerkit' );
		}
		if ( 4202 === $status ) {
			$message = esc_html__( "Can't Get Long-Lived Token.", 'powerkit' );
		}
		if ( 4203 === $status || 4204 === $status ) {
			$message = esc_html__( "Couldn't find Business Profile.", 'powerkit' );
		}
		if ( 4205 === $status || 4206 === $status ) {
			$message = sprintf( __( 'No Facebook pages linked to your Instagram Business account were found. Please link a public Facebook page to your Instagram Business account and connect again. See <a target="_blank" href="%s">this article</a> for details.', 'powerkit' ), 'https://help.instagram.com/399237934150902' );
		}

		// Twitter.
		if ( 4301 === $status ) {
			$message = esc_html__( "Can't Get Request Token.", 'powerkit' );
		}
		if ( 4302 === $status ) {
			$message = esc_html__( 'Something went wrong, try again or contact the plugin administrator.', 'powerkit' );
		}

		return $message;
	}

	/**
	 * Instagram custom tab
	 *
	 * @param string $tab The name of tab.
	 */
	public function instagram_custom_tab( $tab ) {

		$api_data = $this->api_get_data( array( 'instagram-connect', 'facebook-connect' ) );

		// Update connect settigs.
		if ( is_array( $api_data ) && ! empty( $api_data ) ) {
			$ig_status       = isset( $api_data['status'] ) && $api_data['status'] ? $api_data['status'] : null;
			$ig_access_token = isset( $api_data['access_token'] ) && $api_data['access_token'] ? $api_data['access_token'] : null;
			$ig_user_id      = isset( $api_data['user_id'] ) && $api_data['user_id'] ? $api_data['user_id'] : null;
			$ig_username     = isset( $api_data['username'] ) && $api_data['username'] ? $api_data['username'] : null;

			if ( ( 200 === $ig_status ) && $ig_access_token && $ig_user_id ) {
				update_option( 'powerkit_connect_instagram_app_type', 'instagram-connect' === $api_data['type'] ? 'personal' : 'business' );
				update_option( 'powerkit_connect_instagram_app_access_token', $ig_access_token );
				update_option( 'powerkit_connect_instagram_app_user_id', $ig_user_id );
				update_option( 'powerkit_connect_instagram_app_username', $ig_username ? $ig_username : $ig_user_id );
				update_option( 'powerkit_connect_instagram_app_refresh_time', time() + ( DAY_IN_SECONDS * 30 ) );

				$this->location_reset_cache( 'instagram' );
			}
		}

		// Notice.
		if ( isset( $ig_status ) && ( 200 === $ig_status || 201 === $ig_status ) ) {
			?>
				<div class="notice notice-success is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $ig_status ) ) ); ?></p>
				</div>
			<?php
		} elseif ( isset( $ig_status ) && $ig_status ) {
			?>
				<div class="notice notice-error is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $ig_status ) ) ); ?></p>
				</div>
			<?php
		}
		?>

		<?php
		// Select Business Profile.
		if ( is_array( $api_data ) && ! empty( $api_data ) && 'facebook-connect' === $api_data['type'] ) {
			$ig_type         = isset( $api_data['type'] ) && $api_data['type'] ? $api_data['type'] : null;
			$ig_status       = isset( $api_data['status'] ) && $api_data['status'] ? $api_data['status'] : null;
			$ids_business    = isset( $api_data['ids_business'] ) && $api_data['ids_business'] ? $api_data['ids_business'] : null;
			$ig_access_token = isset( $api_data['access_token'] ) && $api_data['access_token'] ? $api_data['access_token'] : null;

			if ( is_array( $ids_business ) && $ids_business ) {
				$form_business = true;
				?>
				<form method="post" id="form_business">
					<?php wp_nonce_field(); ?>

					<h3><?php esc_html_e( 'Instagram Business Profiles for This Account', 'powerkit' ); ?></h3>

					<p><?php esc_html_e( 'You need to select a Business profile below.', 'powerkit' ); ?></p>

					<?php
					$id_counter = 0;
					foreach ( $ids_business as $item ) {
						$id_counter++;

						$data = array(
							'status'       => 200,
							'type'         => $ig_type,
							'access_token' => $ig_access_token,
							'user_id'      => $item['id'],
							'username'     => $item['username'],
						);

						// Generate marker.
						$data['marker'] = md5( uniqid( 'connect', true ) );

						// Set API data.
						$api_data = base64_encode( json_encode( $data ) );
						?>
						<label>
							<input type="radio" name="api_data" <?php checked( $id_counter, 1 ); ?> value="<?php echo esc_attr( $api_data ); ?>">

							<?php echo esc_attr( $item['name'] ); ?> (<?php echo esc_attr( $item['id'] ); ?>)
						</label>
						<?php
					}
					?>
					<p class="submit">
						<input class="button" id="save_business" type="submit" value="<?php esc_html_e( 'Select this profile', 'powerkit' ); ?>" />
					</p>
				</form>

				<script>
				window.onbeforeunload = function(e) {
					return '<?php esc_html_e( 'You need to select a Business profile', 'powerkit' ); ?>';
				};

				document.getElementById( 'form_business' ).onsubmit = function(e) {
					window.onbeforeunload = null;

					return true;
				};
				</script>
				<?php
			}
		}
		?>

		<?php
		// Display information or sign buttons.
		if ( powerkit_connect( 'instagram_app_access_token' ) ) {
			?>

			<?php if ( 'business' === powerkit_connect( 'instagram_app_type' ) ) { ?>
				<h3><?php esc_html_e( 'Business Instagram Account', 'powerkit' ); ?></h3>
			<?php } else { ?>
				<h3><?php esc_html_e( 'Personal Instagram Account', 'powerkit' ); ?></h3>
			<?php } ?>

			<p><span class="tab-badge-success"><?php esc_html_e( '✓ Account', 'powerkit' ); ?> (<a href="https://www.instagram.com/<?php echo esc_attr( powerkit_connect( 'instagram_app_username' ) ); ?>" target="_blank"><?php echo esc_attr( powerkit_connect( 'instagram_app_username' ) ); ?></a>) <?php esc_html_e( 'successfully connected', 'powerkit' ); ?></span></p>

			<p><?php esc_html_e( 'Your Instagram User ID:', 'powerkit' ); ?> <code><?php echo esc_attr( powerkit_connect( 'instagram_app_username' ) ); ?></code> <?php esc_html_e( 'Please use this ID in settings when requested.', 'powerkit' ); ?></p>

			<form method="post" class="form-logout">
				<?php wp_nonce_field(); ?>

				<input type="hidden" name="logout_account_type" value="instagram">

				<p class="submit">
					<input class="button button-primary" name="logout_account" type="submit" value="<?php esc_html_e( 'Disconnect', 'powerkit' ); ?>" />
				</p>
			</form>

		<?php } elseif ( ! isset( $form_business ) ) { ?>

			<h3><?php esc_html_e( 'Personal Account', 'powerkit' ); ?></h3>

			<div class="notice inline">
				<p><?php echo sprintf( __( 'The number of followers, likes, comments and profile image are not available to Instagram personal accounts. Please add these <a href="%s" target="_blank">manually</a> in the Manual Settings.', 'powerkit' ), admin_url( 'options-general.php?page=powerkit_social_links' ) ); ?></p>
			</div>

			<p><?php esc_html_e( 'Used for displaying user feeds from a Personal Instagram account.', 'powerkit' ); ?></p>

			<?php
				$app_authorize = add_query_arg(
					array(
						'app_id'        => powerkit_connect( 'instagram_app_id' ),
						'redirect_uri'  => rawurlencode( powerkit_connect( 'instagram_app_url' ) ),
						'response_type' => 'code',
						'scope'         => 'user_profile,user_media',
						'state'         => base64_encode( sprintf( '%s&tab=%s', powerkit_get_page_url( $this->slug ), $tab ) ),
					),
					'https://www.instagram.com/oauth/authorize'
				);
			?>

			<p>
				<a class="button button-primary" href="<?php echo esc_url( $app_authorize ); ?>">
					<?php esc_html_e( 'Connect', 'powerkit' ); ?>
				</a>
			</p>

			<hr>

			<h3><?php esc_html_e( 'Business Account', 'powerkit' ); ?></h3>

			<div class="notice inline">
				<p><?php echo sprintf( __( 'Please make sure you link your Instagram Business account to a Facebook page. This is required to display number of followers, likes, comments and profile image. Please follow <a href="%s" target="_blank">this link</a> to learn more about linking your Instagram account to a Facebook page.', 'powerkit' ), 'https://help.instagram.com/399237934150902' ); ?></p>
			</div>

			<p><?php esc_html_e( 'Used for displaying user feeds from an Instagram Business or Creator account.', 'powerkit' ); ?></p>

			<?php
				$app_authorize = add_query_arg(
					array(
						'client_id'    => powerkit_connect( 'instagram_app_fb_client_id' ),
						'redirect_uri' => rawurlencode( powerkit_connect( 'instagram_app_fb_url' ) ),
						'scope'        => 'manage_pages,instagram_basic',
						'state'        => base64_encode( sprintf( '%s&tab=%s', powerkit_get_page_url( $this->slug ), $tab ) ),
					),
					'https://www.facebook.com/dialog/oauth'
				);
			?>

			<p>
				<a class="button button-primary" href="<?php echo esc_url( $app_authorize ); ?>">
					<?php esc_html_e( 'Connect', 'powerkit' ); ?>
				</a>
			</p>
			<?php
		}
		?>

		<hr>

		<form class="basic" method="post">
			<h3><?php esc_html_e( 'Manual Settings', 'powerkit' ); ?></h3>

			<table class="form-table">
				<tbody>
					<tr>
						<th scope="row">
							<label for="powerkit_connect_instagram_following" class="title">
								<?php esc_html_e( 'Following', 'powerkit' ); ?>
							</label>
						</th>
						<td>
							<input class="regular-text" name="powerkit_connect_instagram_following" id="powerkit_connect_instagram_following" type="number" value="<?php echo esc_attr( get_option( 'powerkit_connect_instagram_following' ) ); ?>" />
						</td>
					</tr>
					<tr>
						<th scope="row">
							<label for="powerkit_connect_instagram_custom_followers" class="title">
								<?php esc_html_e( 'Followers', 'powerkit' ); ?>
							</label>
						</th>
						<td>
							<input class="regular-text" name="powerkit_connect_instagram_custom_followers" id="powerkit_connect_instagram_custom_followers" type="number" value="<?php echo esc_attr( get_option( 'powerkit_connect_instagram_custom_followers' ) ); ?>" />
							<p class="description">
								<?php esc_html_e( 'The number of followers is automatically retrieved from Instagram for Business accounts.', 'powerkit' ); ?>
								<br>
								<?php echo sprintf( __( 'Please note, this value is displayed in the Instagram feed only. You may change the number of followers in Social Links on <a href="%s" target="_blank">this page</a>.', 'powerkit' ), admin_url( 'options-general.php?page=powerkit_social_links' ) ); ?>
							</p>
						</td>
					</tr>
					<tr>
						<th scope="row">
							<label for="powerkit_connect_instagram_custom_name" class="title">
								<?php esc_html_e( 'Name', 'powerkit' ); ?>
							</label>
						</th>
						<td>
							<input class="regular-text" name="powerkit_connect_instagram_custom_name" id="powerkit_connect_instagram_custom_name" type="text" value="<?php echo esc_attr( get_option( 'powerkit_connect_instagram_custom_name' ) ); ?>" />
							<p class="description"><?php esc_html_e( 'Name is automatically retrieved from Instagram for Business accounts.', 'powerkit' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row">
							<label for="powerkit_connect_instagram_custom_avatar" class="title">
								<?php esc_html_e( 'Profile Image', 'powerkit' ); ?>
							</label>
						</th>
						<td>
							<input placeholder="https://example.com/avatar.jpg" class="regular-text" name="powerkit_connect_instagram_custom_avatar" id="powerkit_connect_instagram_custom_avatar" type="text" value="<?php echo esc_attr( get_option( 'powerkit_connect_instagram_custom_avatar' ) ); ?>" />
							<p class="description"><?php esc_html_e( 'Avatar is automatically retrieved from Instagram for Business accounts.', 'powerkit' ); ?></p>
						</td>
					</tr>
				</tbody>
			</table>

			<?php wp_nonce_field(); ?>

			<p class="submit">
				<input class="button button-primary" name="save_instagram_settings" type="submit" value="<?php esc_html_e( 'Save settings', 'powerkit' ); ?>" />
			</p>
		</form>
		<?php
	}

	/**
	 * Facebook custom tab
	 *
	 * @param string $tab The name of tab.
	 */
	public function facebook_custom_tab( $tab ) {

		$api_data = $this->api_get_data( 'facebook-connect' );

		// Update connect settigs.
		if ( is_array( $api_data ) && ! empty( $api_data ) && 'facebook-connect' === $api_data['type'] ) {
			$fb_status       = isset( $api_data['status'] ) && $api_data['status'] ? $api_data['status'] : null;
			$fb_content      = isset( $api_data['content'] ) && $api_data['content'] ? $api_data['content'] : null;
			$fb_access_token = isset( $api_data['access_token'] ) && $api_data['access_token'] ? $api_data['access_token'] : null;
			$fb_accounts     = isset( $api_data['ids_accounts'] ) && $api_data['ids_accounts'] ? $api_data['ids_accounts'] : array();

			if ( 200 === $fb_status && $fb_access_token ) {
				update_option( 'powerkit_connect_facebook_app_access_token', $fb_access_token );
				update_option( 'powerkit_connect_facebook_app_accounts', $fb_accounts );
				update_option( 'powerkit_connect_facebook_app_refresh', true );

				$this->location_reset_cache( 'facebook' );
			}
		}

		// Notice.
		if ( isset( $fb_status ) && ( 200 === $fb_status ) ) {
			?>
				<div class="notice notice-success is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $fb_status ) ) ); ?></p>
				</div>
			<?php
		} elseif ( isset( $fb_status ) && $fb_status ) {
			?>
				<div class="notice notice-error is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $fb_status ) ) ); ?></p>
				</div>
			<?php
		}
		?>

		<?php
		// Display information or sign buttons.
		if ( powerkit_connect( 'facebook_app_access_token' ) ) {
			?>

			<h3><?php esc_html_e( 'Facebook Account', 'powerkit' ); ?></h3>

			<p><span class="tab-badge-success"><?php esc_html_e( '✓ Account successfully connected', 'powerkit' ); ?></span></p>

			<?php
			$accounts = powerkit_connect( 'facebook_app_accounts' );

			if ( $accounts ) {
				$usernames = array();

				foreach ( $accounts as $account ) {
					if ( isset( $account['username'] ) ) {
						$usernames[] = sprintf( '<code>%s</code>', $account['username'] );
					} else {
						$usernames[] = sprintf( '<code>%s</code>', $account['id'] );
					}
				}

				if ( 1 === count( $usernames ) ) {
					?>
					<p><?php esc_html_e( 'Your Facebook page ID:', 'powerkit' ); ?> <?php echo wp_kses_post( implode( ', ', $usernames ) ); ?><?php esc_html_e( '. Please use this ID in settings when requested.', 'powerkit' ); ?></p>
					<?php
				} else {
					?>
					<p><?php esc_html_e( 'Available Facebook page IDs:', 'powerkit' ); ?> <?php echo wp_kses_post( implode( ', ', $usernames ) ); ?><?php esc_html_e( '. Please use one of these IDs in settings when requested.', 'powerkit' ); ?></p>
					<?php

				}
			}
			?>

			<form method="post" class="form-logout">
				<?php wp_nonce_field(); ?>

				<input type="hidden" name="logout_account_type" value="facebook">

				<p class="submit">
					<input class="button button-primary" name="logout_account" type="submit" value="<?php esc_html_e( 'Disconnect', 'powerkit' ); ?>" />
				</p>
			</form>
		<?php } else { ?>

				<h3><?php esc_html_e( 'Facebook Account', 'powerkit' ); ?></h3>

				<p><?php echo sprintf( __( 'Connect your Facebook account to automatically fetch the number of followers of your Facebook page. You may also change this number manually on <a href="%s" target="_blank">this page</a>.', 'powerkit' ), admin_url( 'options-general.php?page=powerkit_social_links' ) ); ?></p>

				<?php
					$app_authorize = add_query_arg(
						array(
							'client_id'    => powerkit_connect( 'facebook_app_id' ),
							'redirect_uri' => rawurlencode( powerkit_connect( 'facebook_app_url' ) ),
							'scope'        => 'manage_pages',
							'state'        => base64_encode( sprintf( '%s&tab=%s', powerkit_get_page_url( $this->slug ), $tab ) ),
						),
						'https://www.facebook.com/dialog/oauth'
					);
				?>

				<p>
					<a class="button button-primary" href="<?php echo esc_url( $app_authorize ); ?>">
						<?php esc_html_e( 'Connect', 'powerkit' ); ?>
					</a>
				</p>
			<?php
		}
	}

	/**
	 * Facebook custom tab
	 *
	 * @param string $tab The name of tab.
	 */
	public function twitter_custom_tab( $tab ) {

		$api_data = $this->api_get_data( 'twitter-connect' );

		// Update connect settigs.
		if ( is_array( $api_data ) && ! empty( $api_data ) && 'twitter-connect' === $api_data['type'] ) {
			$tw_status             = isset( $api_data['status'] ) && $api_data['status'] ? $api_data['status'] : null;
			$tw_user_id            = isset( $api_data['user_id'] ) && $api_data['user_id'] ? $api_data['user_id'] : null;
			$tw_screen_name        = isset( $api_data['screen_name'] ) && $api_data['screen_name'] ? $api_data['screen_name'] : null;
			$tw_oauth_token        = isset( $api_data['oauth_token'] ) && $api_data['oauth_token'] ? $api_data['oauth_token'] : null;
			$tw_oauth_token_secret = isset( $api_data['oauth_token_secret'] ) && $api_data['oauth_token_secret'] ? $api_data['oauth_token_secret'] : null;

			if ( 200 === $tw_status && $tw_oauth_token && $tw_oauth_token_secret ) {
				update_option( 'powerkit_connect_twitter_app_user_id', $tw_user_id );
				update_option( 'powerkit_connect_twitter_app_screen_name', $tw_screen_name );
				update_option( 'powerkit_connect_twitter_app_oauth_token', $tw_oauth_token );
				update_option( 'powerkit_connect_twitter_app_oauth_token_secret', $tw_oauth_token_secret );

				$this->location_reset_cache( 'twitter' );
			}
		}

		// Notice.
		if ( isset( $tw_status ) && ( 200 === $tw_status ) ) {
			?>
				<div class="notice notice-success is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $tw_status ) ) ); ?></p>
				</div>
			<?php
		} elseif ( isset( $tw_status ) && $tw_status ) {
			?>
				<div class="notice notice-error is-dismissible">
					<p><?php echo wp_kses_post( wp_unslash( $this->api_get_message( $tw_status ) ) ); ?></p>
				</div>
			<?php
		}
		?>

		<?php
		// Display information or sign buttons.
		if ( powerkit_connect( 'twitter_app_oauth_token' ) ) {
			?>

			<h3><?php esc_html_e( 'Twitter Account', 'powerkit' ); ?></h3>

			<p><span class="tab-badge-success"><?php esc_html_e( '✓ Account', 'powerkit' ); ?> (<a href="https://twitter.com/<?php echo esc_attr( powerkit_connect( 'twitter_app_screen_name' ) ); ?>" target="_blank"><?php echo esc_attr( powerkit_connect( 'twitter_app_screen_name' ) ); ?></a>) <?php esc_html_e( 'successfully connected', 'powerkit' ); ?></span></p>

			<p><?php esc_html_e( 'Your Twitter User ID:', 'powerkit' ); ?> <code><?php echo esc_attr( powerkit_connect( 'twitter_app_screen_name' ) ); ?></code> <?php esc_html_e( 'Please use this ID in settings when requested.', 'powerkit' ); ?></p>

			<form method="post" class="form-logout">
				<?php wp_nonce_field(); ?>

				<input type="hidden" name="logout_account_type" value="twitter">

				<p class="submit">
					<input class="button button-primary" name="logout_account" type="submit" value="<?php esc_html_e( 'Disconnect', 'powerkit' ); ?>" />
				</p>
			</form>
		<?php } else { ?>
				<h3><?php esc_html_e( 'Twitter Account', 'powerkit' ); ?></h3>

				<p><?php echo sprintf( __( 'Connect your Twitter account to display your Twitter feed and the number of followers in Social Links. You may also change the number of followers manually on <a href="%s" target="_blank">this page</a>.', 'powerkit' ), admin_url( 'options-general.php?page=powerkit_social_links' ) ); ?></p>

				<?php
					$app_authorize = add_query_arg(
						array(
							'state' => rawurlencode( sprintf( '%s&tab=%s', powerkit_get_page_url( $this->slug ), $tab ) ),
						),
						powerkit_connect( 'twitter_app_url' )
					);
				?>

				<p>
					<a class="button button-primary" href="<?php echo esc_url( $app_authorize ); ?>">
						<?php esc_html_e( 'Connect', 'powerkit' ); ?>
					</a>
				</p>
			<?php
		}
	}

	/**
	 * Settings save
	 */
	public function save_options_page() {
		if ( ! isset( $_POST['_wpnonce'] ) || ! wp_verify_nonce( $_POST['_wpnonce'] ) ) { // Input var ok; sanitization ok.
			return;
		}

		if ( isset( $_POST['save_settings'] ) ) { // Input var ok.
			// Save social params.
			$connect_list = apply_filters( 'powerkit_register_connect_list', array() );
			foreach ( $connect_list as $item ) {
				$id = $item['id'];
				if ( isset( $item['fields'] ) && $item['fields'] ) {
					foreach ( $item['fields'] as $field ) {
						if ( isset( $_POST[ $field['key'] ] ) ) { // Input var ok.
							update_option( $field['key'], sanitize_text_field( wp_unslash( $_POST[ $field['key'] ] ) ) ); // Input var ok.
						}
					}
				}
			}

			self::reset_cache();

			printf( '<div id="message" class="updated fade"><p><strong>%s</strong></p></div>', esc_html__( 'The settings are saved.', 'powerkit' ) );
		}

		if ( isset( $_POST['save_instagram_settings'] ) ) { // Input var ok.
			// Custom fields.
			if ( isset( $_POST['powerkit_connect_instagram_following'] ) ) { // Input var ok.
				update_option( 'powerkit_connect_instagram_following', sanitize_text_field( wp_unslash( $_POST['powerkit_connect_instagram_following'] ) ) ); // Input var ok.
			}
			if ( isset( $_POST['powerkit_connect_instagram_custom_followers'] ) ) { // Input var ok.
				update_option( 'powerkit_connect_instagram_custom_followers', sanitize_text_field( wp_unslash( $_POST['powerkit_connect_instagram_custom_followers'] ) ) ); // Input var ok.
			}
			if ( isset( $_POST['powerkit_connect_instagram_custom_name'] ) ) { // Input var ok.
				update_option( 'powerkit_connect_instagram_custom_name', sanitize_text_field( wp_unslash( $_POST['powerkit_connect_instagram_custom_name'] ) ) ); // Input var ok.
			}
			if ( isset( $_POST['powerkit_connect_instagram_custom_avatar'] ) ) { // Input var ok.
				update_option( 'powerkit_connect_instagram_custom_avatar', sanitize_text_field( wp_unslash( $_POST['powerkit_connect_instagram_custom_avatar'] ) ) ); // Input var ok.
			}

			$this->location_reset_cache( 'instagram' );

			printf( '<div id="message" class="updated fade"><p><strong>%s</strong></p></div>', esc_html__( 'The settings are saved.', 'powerkit' ) );
		}
	}

	/**
	 * Logout account
	 *
	 * @since 1.0.0
	 */
	public function logout_account() {
		if ( ! isset( $_POST['_wpnonce'] ) || ! wp_verify_nonce( $_POST['_wpnonce'] ) ) { // Input var ok; sanitization ok.
			return;
		}

		if ( isset( $_POST['logout_account'] ) ) { // Input var ok.

			// Logout Instagram.
			if ( isset( $_POST['logout_account_type'] ) && 'instagram' === $_POST['logout_account_type'] ) {
				delete_option( 'powerkit_connect_instagram_app_type' );
				delete_option( 'powerkit_connect_instagram_app_access_token' );
				delete_option( 'powerkit_connect_instagram_app_user_id' );
				delete_option( 'powerkit_connect_instagram_app_username' );
				delete_option( 'powerkit_connect_instagram_app_refresh_time' );
			}

			// Logout Facebook.
			if ( isset( $_POST['logout_account_type'] ) && 'facebook' === $_POST['logout_account_type'] ) {
				delete_option( 'powerkit_connect_facebook_app_access_token' );
				delete_option( 'powerkit_connect_facebook_app_accounts' );
			}

			// Logout Facebook.
			if ( isset( $_POST['logout_account_type'] ) && 'twitter' === $_POST['logout_account_type'] ) {
				delete_option( 'powerkit_connect_twitter_app_user_id' );
				delete_option( 'powerkit_connect_twitter_app_screen_name' );
				delete_option( 'powerkit_connect_twitter_app_oauth_token' );
				delete_option( 'powerkit_connect_twitter_app_oauth_token_secret' );
			}

			if ( isset( $_POST['logout_account_type'] ) ) {
				$this->location_reset_cache( $_POST['logout_account_type'] );
			}

			printf( '<div id="message" class="updated fade"><p><strong>%s</strong></p></div>', esc_html__( 'Account disabled successfully.', 'powerkit' ) );
		}
	}

	/**
	 * Tab reset cache
	 *
	 * @param string $slug Slug of tab.
	 */
	public function location_reset_cache( $slug ) {

		// Base.
		$list = array(
			'powerkit_social_follow',
			'powerkit_social_links_counter',
		);

		// Instagram.
		if ( 'instagram' === $slug ) {
			$list = array_merge(
				$list,
				array(
					'powerkit_instagram_data',
					'powerkit_instagram_recent',
				)
			);

		}

		// Twitter.
		if ( 'twitter' === $slug ) {
			$list = array_merge(
				$list,
				array(
					'powerkit_twitter_data',
					'powerkit_twitter_block_cache',
					'powerkit_twitter_shortcode_cache',
					'powerkit_twitter_widget_cache',
				)
			);
		}

		self::reset_cache( $list );
	}

	/**
	 * User reset cache
	 *
	 * @param bool $forcibly Force clear the cache.
	 */
	public function user_reset_cache( $forcibly = false ) {
		if ( ! isset( $_POST['_wpnonce'] ) || ! wp_verify_nonce( $_POST['_wpnonce'] ) ) { // Input var ok; sanitization ok.
			return;
		}

		if ( isset( $_POST['powerkit_reset_cache'] ) ) { // Input var ok.
			self::reset_cache();
		}
	}

	/**
	 * Ajax Reset cache
	 */
	public function ajax_reset_cache() {
		wp_verify_nonce( null );

		$list = apply_filters( 'powerkit_ajax_reset_cache', array() );

		if ( ! isset( $_POST['page'] ) ) { // Input var ok.
			return false;
		}

		$page = sanitize_key( $_POST['page'] ); // Input var ok; sanitization ok.

		if ( ! isset( $list[ $page ] ) ) {
			return false;
		}

		self::reset_cache( $list[ $page ] );

		die();
	}

	/**
	 * Cron refresh access token
	 */
	public function cron_access_token_refresh() {
		self::access_token_refresh( 'instagram' );
	}

	/**
	 * Refresh access token
	 *
	 * @param string $type                   The type.
	 * @param bool   $should_attempt_refresh The refresh.
	 */
	public static function access_token_refresh( $type, $should_attempt_refresh = false ) {

		if ( 'instagram' === $type && 'personal' === powerkit_connect( 'instagram_app_type' ) ) {

			if ( (int) get_option( 'powerkit_connect_instagram_app_refresh_time' ) < time() ) {
				$should_attempt_refresh = true;
			}

			if ( $should_attempt_refresh ) {

				update_option( 'powerkit_connect_instagram_app_refresh_time', time() + ( DAY_IN_SECONDS * 30 ) );

				$remote_link = add_query_arg(
					array(
						'grant_type'   => 'ig_refresh_token',
						'access_token' => powerkit_connect( 'instagram_app_access_token' ),
					),
					'https://graph.instagram.com/refresh_access_token'
				);

				$response = wp_safe_remote_get(
					$remote_link,
					array(
						'timeout' => 3,
					)
				);

				$response = wp_remote_retrieve_body( $response );

				$data = json_decode( $response, true );

				// Update settings.
				if ( isset( $data['access_token'] ) ) {
					update_option( 'powerkit_connect_instagram_app_access_token', $data['access_token'] );
				}
			}
		}
	}

	/**
	 * Reset cache
	 *
	 * @param array $list Reset list.
	 */
	public static function reset_cache( $list = false ) {
		if ( is_array( $list ) ) {

			$list = $list;

		} elseif ( is_string( $list ) && $list ) {

			$list = explode( ' ', $list );

		} else {
			$list = apply_filters( 'powerkit_reset_cache', array() );

			$puck = array();

			foreach ( $list as $item ) {
				if ( is_array( $item ) ) {
					$puck = array_merge( $puck, $item );
				} elseif ( is_string( $item ) ) {
					$puck = array_merge( $puck, explode( ' ', $item ) );
				}
			}

			$list = $puck;
		}

		if ( $list ) {
			global $wpdb;

			foreach ( $list as $option_name ) {
				$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name LIKE '%%%s%%'", $option_name ) ); // db call ok; no-cache ok.
				$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->postmeta WHERE meta_key LIKE '%%%s%%'", $option_name ) ); // db call ok; no-cache ok.
			}

			printf( '<div id="message" class="updated fade"><p><strong>%s</strong></p></div>', esc_html__( 'Cache purged.', 'powerkit' ) );
		}
	}

	/**
	 * Register the stylesheets and JavaScript for the admin area.
	 *
	 * @param string $page Current page.
	 */
	public function enqueue_scripts( $page ) {
		if ( is_customize_preview() || 'toplevel_page_powerkit_manager' === $page ) {

			wp_enqueue_script( 'admin-powerkit-connect', plugin_dir_url( __FILE__ ) . 'js/admin-powerkit-connect.js', array( 'jquery' ), powerkit_get_setting( 'version' ), false );

			wp_localize_script(
				'admin-powerkit-connect',
				'pk_connect',
				array(
					'ajax_url' => admin_url( 'admin-ajax.php' ),
				)
			);
		}
	}
}

new Powerkit_Connect();

```