Use ssl.enabled flag when RabbitMQ address has no protocol

See gh-19109

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/amqp/RabbitProperties.java

@@ -188,7 +188,7 @@ public class RabbitProperties {
 	private List<Address> parseAddresses(String addresses) {
 		List<Address> parsedAddresses = new ArrayList<>();
 		for (String address : StringUtils.commaDelimitedListToStringArray(addresses)) {
-			parsedAddresses.add(new Address(address));
+			parsedAddresses.add(new Address(address, getSsl().isEnabled()));
 		}
 		return parsedAddresses;
 	}
@@ -968,21 +968,24 @@ public class RabbitProperties {
 
 		private boolean secureConnection;
 
-		private Address(String input) {
+		private Address(String input, boolean sslEnabled) {
 			input = input.trim();
-			input = trimPrefix(input);
+			input = trimPrefix(input, sslEnabled);
 			input = parseUsernameAndPassword(input);
 			input = parseVirtualHost(input);
 			parseHostAndPort(input);
 		}
 
-		private String trimPrefix(String input) {
+		private String trimPrefix(String input, boolean sslEnabled) {
 			if (input.startsWith(PREFIX_AMQP_SECURE)) {
 				this.secureConnection = true;
 				return input.substring(PREFIX_AMQP_SECURE.length());
 			}
 			if (input.startsWith(PREFIX_AMQP)) {
-				input = input.substring(PREFIX_AMQP.length());
+				return input.substring(PREFIX_AMQP.length());
+			}
+			if (sslEnabled) {
+				this.secureConnection = true;
 			}
 			return input;
 		}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/amqp/RabbitPropertiesTests.java

@@ -101,6 +101,21 @@ public class RabbitPropertiesTests {
 		assertThat(this.properties.determinePort()).isEqualTo(5671);
 	}
 
+	@Test
+	public void determinePortReturnsDefaultAmqpsPortWhenFirstAddressHasNoExplicitPort() {
+		this.properties.setPort(1234);
+		this.properties.setAddresses("rabbit1.example.com,rabbit2.example.com:2345");
+		assertThat(this.properties.determinePort()).isEqualTo(5672);
+	}
+
+	@Test
+	public void determinePortReturnsDefaultAmqpsPortWhenFirstAddressHasNoExplicitPortButSslEnabled() {
+		this.properties.getSsl().setEnabled(true);
+		this.properties.setPort(1234);
+		this.properties.setAddresses("rabbit1.example.com,rabbit2.example.com:2345");
+		assertThat(this.properties.determinePort()).isEqualTo(5671);
+	}
+
 	@Test
 	public void virtualHostDefaultsToNull() {
 		assertThat(this.properties.getVirtualHost()).isNull();
@@ -240,6 +255,20 @@ public class RabbitPropertiesTests {
 		assertThat(this.properties.getSsl().determineEnabled()).isTrue();
 	}
 
+	@Test
+	public void determineSslUsingAddressWithoutAmpqsDefersToSslFlagProperty() {
+		this.properties.getSsl().setEnabled(true);
+		this.properties.setAddresses("root:password@otherhost");
+		assertThat(this.properties.getSsl().determineEnabled()).isTrue();
+	}
+
+	@Test
+	public void determineSslUsingAddressWithoutAmpqDefersToSslFlagProperty() {
+		this.properties.getSsl().setEnabled(false);
+		this.properties.setAddresses("root:password@otherhost");
+		assertThat(this.properties.getSsl().determineEnabled()).isFalse();
+	}
+
 	@Test
 	public void determineSslUsingAmqpReturnsStateOfFirstAddress() {
 		this.properties.setAddresses("amqp://root:password@otherhost,amqps://root:password2@otherhost2");