Added functionality for Apple Wallet.

composer.json

@@ -0,0 +1,17 @@
+{
+  "require": {
+    "google/auth": "^1.18",
+    "guzzlehttp/guzzle": "*",
+    "google/apiclient": "^2.15",
+    "google/apiclient-services": "~0.300",
+    "pkpass/pkpass": "^2.3"
+  },
+  "scripts": {
+    "pre-autoload-dump": "Google\\Task\\Composer::cleanup"
+  },
+  "extra": {
+    "google/apiclient-services": [
+      "Walletobjects"
+    ]
+  }
+}

includes/apple-wallet.php

@@ -0,0 +1,191 @@
+<?php
+/**
+ * All code pertaining to Apple Wallet logic should be in this file.
+ * @since TBD.
+ */
+use PKPass\PKPass;
+
+// Require the autoloader file.
+require plugin_dir_path( __DIR__ ) . 'vendor/autoload.php';
+
+/**
+ * Determine if the device shown is a valid Apple device or browser.
+ * @since TBD
+ * @return boolean True if the device is an Apple device or browser.
+ */
+function pmpro_membership_card_should_show_wallet() {
+    $userAgent = $_SERVER['HTTP_USER_AGENT'];
+
+    // Check for iOS devices (iPhone or iPad)
+    $is_ios_device = strpos( $userAgent, 'iPhone' ) !== false || strpos( $userAgent, 'iPad' ) !== false;
+
+    // Check for macOS devices (Macintosh)
+    $is_mac = strpos( $userAgent, 'Macintosh' ) !== false;
+
+    // Check for Safari browser
+    $is_safari = strpos( $userAgent, 'Safari' ) !== false;
+
+    return $is_safari || $is_ios_device || $is_mac;
+}
+
+/**
+ * Function to generate the Apple Wallet Pass
+ * @since TBD
+ */
+function pmpro_membership_card_generate_apple_pass( $user = NULL ) {
+	global $current_user;
+
+	// Don't show in the admin area.
+	if ( is_admin() ) {
+		return;
+	}
+
+
+	// It's not an Apple device, lets not show it.
+	if ( ! pmpro_membership_card_should_show_wallet() ) {
+		return;
+	}
+
+
+	// If no user object passed through, let's use the current user.
+	if ( empty( $user->ID ) ) {
+		$user = $current_user;
+	}
+
+	// If the member doens't have any level, let's not show the button.
+	if ( ! pmpro_hasMembershipLevel( $user->ID ) ) {
+		return;
+	}
+
+	// Let's show the add to wallet button
+	if ( empty( $_REQUEST['pmpro_membership_add_to_wallet'] ) ) {
+		ob_start();
+		?>
+		<div id="pmpro_membership_add_apple_wallet">
+			<?php 
+			$wallet_query_args = array( 
+				'pmpro_membership_add_to_wallet' => 'true',
+				'pmpro_membership_wallet_nonce' => wp_create_nonce( 'pmpro_membership_add_to_wallet' )
+			);
+			?>
+			<a href="<?php echo esc_url( add_query_arg( $wallet_query_args ) ); ?>" id="pmpro_membership_card_add_to_apple"><img src="<?php echo plugin_dir_url( __FILE__ ) . 'images/add-to-apple-wallet.svg'; ?>" alt="Add to Apple Pay" /></a>
+		</div>
+		<?php
+		return ob_get_clean();
+	} else {
+
+		//If nonce isn't valid, don't run any code and die quietly.
+		if ( ! wp_verify_nonce( $_REQUEST['pmpro_membership_wallet_nonce'], 'pmpro_membership_add_to_wallet' ) ) {
+			return;
+		}
+
+		// No certificate and password is found. Let's not proceed.
+		if ( ! defined( 'PMPRO_APPLE_WALLET_CERT' ) && !defined( 'PMPRO_APPLE_WALLET_CERT_PASS' ) ) {
+			return;
+		}
+
+		$certificate_url = PMPRO_APPLE_WALLET_CERT;
+		$certificate_pass = PMPRO_APPLE_WALLET_CERT_PASS;
+
+		// Instantiate the PKPass class.
+		$pass = new PKPass( $certificate_url, $certificate_pass );
+
+		// Get all levels as a comma-separated string
+		$levels = $user->membership_levels;
+		$levels = array_slice( $levels, 0, 3 );
+		$level_names = wp_list_pluck( $levels, 'name' );
+		sort( $level_names );
+		$user_levels = implode( ', ', $level_names );
+
+
+		/**
+		 * Arguments used for Apple Wallet Pass.
+		 * @param array $args The arguments for the Apple Wallet Pass.
+		 * @param user $user The WordPress user.
+		 */
+		$args = apply_filters( 'pmpro_membership_card_apple_wallet_args', array(
+			'site_name' => get_bloginfo('name'),
+			'serial_number' => $user->ID,
+			'member_name' => pmpro_membership_card_return_user_name( $user ),
+			'background_color' => 'rgb(255,255,255)',
+			'membership_name' => $user->membership_level->name,
+			'membership_since' => date_i18n( get_option( 'date_format' ), pmpro_getMemberStartDate( $user->ID ) ),
+			'membership_enddate' => pmpro_membership_card_return_end_date( $user ),
+			'barcode_message' => sprintf( __( '%s - %s - expires %s', 'pmpro-membership-card' ), pmpro_membership_card_return_user_name( $user ), $user->membership_level->name, pmpro_membership_card_return_end_date( $user ) )
+			), $user );
+
+
+		$pass->setData('{
+		"passTypeIdentifier": "pass.pmpro",
+		"teamIdentifier": "RGZMG86H2D",
+		"formatVersion": 1,
+		"organizationName": "Paid Memberships Pro",
+		"serialNumber": "' . esc_html( $args['serial_number'] ) . '",
+		"backgroundColor": "' . esc_html( $args['background_color'] ) . '",
+		"logoText": "' . esc_html( $args['site_name'] ) . '",
+		"description": "' . esc_html__( 'Membership Card', 'pmpro-membership-card' ) . '",
+		"generic": {
+			"primaryFields": [
+				{
+					"key" : "member",
+					"label" : "Member Name",
+					"value" : "' .  esc_html( $args['member_name'] ) . '"
+				}
+			],
+			"secondaryFields": [
+				{
+					"key" : "membership_level",
+					"label" : "Membership Level",
+					"value" : "' . esc_html( $args['membership_name'] ) . '"
+				},
+				{
+					"key": "membership_since",
+					"label": "Membership Since",
+					"value": "' . esc_html( $args['membership_since'] ) . '"
+				}
+			],
+			"auxiliaryFields": [
+				{
+					"key": "membership_status",
+					"label": "Status",
+					"value": "' . esc_html__( 'Active', 'pmpro-membership-card' ) . '"
+				},
+				{
+					"key": "membership_enddate",
+					"label": "Membership Expires",
+					"value": "' . esc_html( $args['membership_enddate'] ) . '"
+				}
+			]
+		},
+		"barcode": {
+			"message": "' . esc_html( $args['barcode_message'] ) . '",
+			"format": "PKBarcodeFormatQR",
+			"messageEncoding": "iso-8859-1"
+		},
+		}');
+
+		/**
+		 * Assets for the pass. This allows developers to change or add new assets to the pass.
+		 * Note: The icon.png is the only required file. The files have to confirm to the icon.png, logo.png, thumbnail.png as no other file names will work.
+		 * @param array $assets The assets for the pass with a key => path to file value.
+		 * @since TBD
+		 */
+		$assets = apply_filters( 'pmpro_membership_card_apple_wallet_assets', array(
+			'logo' => plugin_dir_path( __FILE__ ) . 'images/logo.png',
+			'thumbnail' => plugin_dir_path( __FILE__ ) . 'images/thumbnail.png',
+			'icon' => plugin_dir_path( __FILE__ ) . 'images/icon.png',
+			'icon@2x' => plugin_dir_path( __FILE__ ) . 'images/[email protected]'
+		) );
+
+		// Loop through to add assets to the pass.
+		foreach( $assets as $key => $path ) {
+			if ( file_exists( $path ) ) {
+				$pass->addFile( esc_url( $path ) );
+			}
+		}
+
+		// Generate the pass and let the browser open it.
+		$pass->create(true);
+}
+}
+add_shortcode( 'pmpro_membership_card_show_wallet', 'pmpro_membership_card_generate_apple_pass' );