Introduces the concept of CLOUDINARY_CONNECTION_STRING

php/class-connect.php

@@ -105,6 +105,8 @@ public function __construct( Plugin $plugin ) {
 		add_action( 'update_option_cloudinary_connect', array( $this, 'updated_option' ) );
 		add_action( 'cloudinary_status', array( $this, 'check_status' ) );
 		add_action( 'cloudinary_version_upgrade', array( $this, 'upgrade_connection' ) );
+
+		add_filter( 'cloudinary_setting_get_value', array( $this, 'maybe_connection_string_constant' ), 10, 2 );
 	}
 
 	/**
@@ -729,6 +731,49 @@ public function upgrade_connection( $old_version ) {
 		}
 	}
 
+	/**
+	 * Checks if connection string constant is defined.
+	 *
+	 * @return bool
+	 */
+	public function has_connection_string_constant() {
+		return defined( 'CLOUDINARY_CONNECTION_STRING' );
+	}
+
+	/**
+	 * Filters the connection parts.
+	 *
+	 * @param mixed  $value   The default value.
+	 * @param string $setting The setting slug.
+	 *
+	 * @return mixed
+	 */
+	public function maybe_connection_string_constant( $value, $setting ) {
+		if ( ! $this->has_connection_string_constant() ) {
+			return $value;
+		}
+
+		static $url = null;
+
+		if ( empty( $url ) ) {
+			$url = str_replace( 'CLOUDINARY_URL=', '', CLOUDINARY_CONNECTION_STRING );
+		}
+
+		if ( 'cloudinary_url' === $setting ) {
+			$value = $url;
+		}
+
+		if ( 'signature' === $setting ) {
+			 $value = md5( $url );
+		}
+
+		if ( 'connect' === $setting ) {
+			$value['cloudinary_url'] = $url;
+		}
+
+		return $value;
+	}
+
 	/**
 	 * Check if the switch account param is set.
 	 *

php/ui/component/class-switch-cloud.php

@@ -8,6 +8,7 @@
 namespace Cloudinary\UI\Component;
 
 use Cloudinary\UI\Component;
+use function Cloudinary\get_plugin_instance;
 
 /**
  * Connect Link Component.
@@ -25,7 +26,8 @@ class Switch_Cloud extends Submit {
 	 */
 	protected function submit_button( $struct ) {
 
-		$url = add_query_arg(
+		$plugin = get_plugin_instance();
+		$url    = add_query_arg(
 			array(
 				'switch-account' => true,
 			),
@@ -40,6 +42,13 @@ protected function submit_button( $struct ) {
 			'button-primary',
 		);
 
+		if ( $plugin->get_component( 'connect' )->has_connection_string_constant() ) {
+			unset( $struct['attributes']['href'] );
+			$struct['element']                = 'button';
+			$struct['attributes']['disabled'] = 'disabled';
+			$struct['attributes']['title']    = __( 'Connection string defined by constant.', 'cloudinary' );
+		}
+
 		return $struct;
 	}
 }