Merge pull request #138 from humanmade/backport-134-to-v6-branch

[Backport v6-branch] [Backport v7-branch] Add unsupported version warning

composer.json

@@ -18,7 +18,8 @@
 	"autoload": {
 		"files": [
 			"inc/namespace.php",
-			"inc/about/namespace.php"
+			"inc/about/namespace.php",
+			"inc/upgrades/namespace.php"
 		],
 		"classmap": [
 			"inc/"

inc/namespace.php

@@ -14,6 +14,39 @@
  */
 function bootstrap() {
 	About\bootstrap();
+	Upgrades\bootstrap();
+}
+
+/**
+ * Get the major version of Altis in use.
+ *
+ * @return int|null Major version if available, or null if invalid or development version.
+ */
+function get_version() : ?int {
+	$data = get_composer_data();
+	$core = $data['altis/core'] ?? null;
+	if ( ! $core ) {
+		// Uh… I guess there's no Altis here then!
+		return null;
+	}
+
+	// Cast to array for Composer v2 compat.
+	$core = (array) $core;
+
+	// Is this a dev version?
+	if ( substr( $core['version'], 0, 4 ) === 'dev-' ) {
+		return null;
+	}
+
+	$version = $core['version_normalized'];
+	$parts = explode( '.', $version, 2 );
+	if ( count( $parts ) < 2 ) {
+		// Invalid version, probably another development version.
+		return null;
+	}
+
+	$major = intval( $parts[0] );
+	return $major;
 }
 
 /**

inc/upgrades/namespace.php

@@ -0,0 +1,248 @@
+<?php
+/**
+ * Upgrade notice.
+ *
+ * @package altis/core
+ */
+
+namespace Altis\Upgrades;
+
+use Altis;
+
+/**
+ * Bootstrap the actions.
+ */
+function bootstrap() {
+	add_action( 'wp_network_dashboard_setup', __NAMESPACE__ . '\\register_widget' );
+	add_action( 'wp_dashboard_setup', __NAMESPACE__ . '\\register_widget' );
+}
+
+/**
+ * Register our dashboard widget.
+ */
+function register_widget() {
+	if ( ! current_user_can( 'edit_options' ) ) {
+		return;
+	}
+
+	if ( is_version_supported() ) {
+		return;
+	}
+
+	add_action( 'admin_head-index.php', function () {
+		?>
+		<style>
+			#altis-upgrade-warning {
+				position: relative;
+				margin: 40px 0 10px;
+				padding: 8px 12px;
+				border: 2px solid #df3232;
+				border-radius: 1px;
+				box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
+				background: #fff;
+				font-size: 13px;
+				line-height: 1.7;
+			}
+
+			#altis-upgrade-warning h1 {
+				background: #df3232;
+				color: #f0f0f0;
+				padding: 8px 12px;
+				margin: -8px -12px 0;
+				font-weight: bold;
+			}
+
+			#altis-upgrade-warning h1 .dashicons {
+				color: #df3232;
+				color: #f0f0f0;
+				font-size: 23px;
+				height: 23px;
+				width: 23px;
+				line-height: 1.3;
+			}
+
+			#altis-upgrade-warning p {
+				font-size: 14px;
+			}
+
+			#altis-upgrade-warning p:last-of-type {
+				margin-bottom: 4px;
+			}
+
+			#altis-upgrade-warning .button .dashicons-external {
+				line-height: 43px;
+			}
+		</style>
+		<?php
+	} );
+
+	add_action( 'all_admin_notices', function () {
+		global $pagenow;
+		if ( $pagenow !== 'index.php' ) {
+			return;
+		}
+
+		render_widget();
+	} );
+}
+
+/**
+ * Get the supported version information from docs.altis-dxp.com.
+ *
+ * @param bool $skip_cache True to override the cache.
+ * @return array|null Data from altis-dxp.com
+ */
+function get_supported_version_info( bool $skip_cache = false ) : ?array {
+	$releases = wp_cache_get( 'releases', 'altis-core' );
+	if ( ! empty( $releases ) && ! $skip_cache ) {
+		return $releases;
+	}
+
+	// Fetch releases data.
+	$response = wp_remote_get( 'https://docs.altis-dxp.com/releases.json' );
+
+	// Handle any error response.
+	if ( is_wp_error( $response ) ) {
+		/**
+		 * The wp_remote_get error response.
+		 *
+		 * @var WP_Error $response
+		 */
+		trigger_error( $response->get_error_message(), E_USER_WARNING );
+		return null;
+	}
+
+	// Parse JSON.
+	$releases = json_decode( wp_remote_retrieve_body( $response ), ARRAY_A );
+	if ( json_last_error() !== JSON_ERROR_NONE ) {
+		trigger_error( json_last_error_msg(), E_USER_WARNING );
+		return null;
+	}
+
+	// Ensure releases are sorted by date.
+	array_multisort(
+		array_map( 'strtotime', array_column( $releases, 'date' ) ),
+		SORT_DESC,
+		$releases
+	);
+
+	wp_cache_set( 'releases', $releases, 'altis-core', WEEK_IN_SECONDS );
+
+	return $releases;
+}
+
+/**
+ * Get data for current version of Altis.
+ *
+ * @return array|null
+ */
+function get_current_version_info() : ?array {
+	$releases = get_supported_version_info();
+	if ( empty( $releases ) ) {
+		return null;
+	}
+
+	$version = Altis\get_version();
+
+	foreach ( $releases as $release ) {
+		if ( $release['version'] === $version ) {
+			return $release;
+		}
+	}
+
+	return null;
+}
+
+/**
+ * Is this site on the latest version of Altis?
+ *
+ * If we can't resolve the release data assume current version is latest.
+ *
+ * @return bool
+ */
+function is_version_latest() : bool {
+	$version = Altis\get_version();
+	$releases = get_supported_version_info();
+	return $version === ( $releases[0]['version'] ?? $version );
+}
+
+/**
+ * Is this site on a supported version of Altis?
+ *
+ * If version information cannot be resolved assume it is supported.
+ *
+ * @return bool
+ */
+function is_version_supported() : bool {
+	$release = get_current_version_info();
+	return $release['supported'] ?? true;
+}
+
+/**
+ * Render the unsupported version widget.
+ *
+ * @return void
+ */
+function render_widget() {
+	$version = Altis\get_version();
+	$releases = get_supported_version_info();
+	if ( empty( $releases ) ) {
+		return;
+	}
+
+	$latest = $releases[0];
+
+	?>
+	<div class="wrap">
+		<div id="altis-upgrade-warning">
+			<h1>
+				<span aria-hidden="true" class="dashicons dashicons-warning"></span>
+				<span class="screen-reader-text"><?php esc_html_e( 'Warning:', 'altis' ) ?></span>
+				<?php esc_html_e( 'Altis Upgrade Required', 'altis' ) ?>
+			</h1>
+			<p>
+			<?php
+				echo esc_html( sprintf(
+					__( 'You are running an unsupported version of Altis (Altis v%d).', 'altis' ),
+					$version
+				) );
+			?>
+			</p>
+
+			<p>
+			<?php
+				// phpcs:ignore
+				echo clean_html( sprintf(
+					__( 'The latest version of Altis is <a href="%s">Altis v%d</a>, released on %s.', 'altis' ),
+					$latest['blog'] ?: "https://github.com/humanmade/altis/releases/tag/{$latest['tag']}",
+					$latest['version'],
+					date_i18n( get_option( 'date_format' ), strtotime( $latest['date'] ) )
+				), 'a' );
+			?>
+			</p>
+
+			<p><?php esc_html_e( 'Newer versions of Altis are faster and come with new features included in your existing licensing cost.', 'altis' ) ?></p>
+
+			<p class="button-container">
+				<a
+					class="button button-primary button-hero"
+					href="https://docs.altis-dxp.com/guides/upgrading/"
+					target="_blank"
+					rel="noopener noreferrer"
+				>
+					<?php
+						// phpcs:ignore
+						echo clean_html( sprintf(
+							'%1$s <span class="screen-reader-text">%2$s</span>',
+							__( 'Learn more about Altis upgrades' ),
+							/* translators: Accessibility text. */
+							__( '(opens in a new tab)' )
+						), 'span' );
+					?>
+					<span aria-hidden="true" class="dashicons dashicons-external"></span>
+				</a>
+			</p>
+		</div>
+	</div>
+	<?php
+}