Resteasy Rest Client: Fix truststore password issue with Vert.x

The truststore password was being sent as empty ("") in the JksOptions. This caused the following exception:

```
Caused by: io.vertx.core.VertxException: java.security.UnrecoverableKeyException: Get Key failed: Given final block not properly padded. Such issues can arise if a bad key is used during decryption. 
[09:59:27.352] [INFO] [client]  at io.vertx.core.net.impl.SSLHelper.getContext(SSLHelper.java:480) 
[09:59:27.353] [INFO] [client]  at io.vertx.core.net.impl.SSLHelper.getContext(SSLHelper.java:469) 
[09:59:27.353] [INFO] [client]  at io.vertx.core.net.impl.SSLHelper.validate(SSLHelper.java:507) 
[09:59:27.353] [INFO] [client]  at io.vertx.core.net.impl.NetClientImpl.<init>(NetClientImpl.java:95) 
[09:59:27.353] [INFO] [client]  at io.vertx.core.http.impl.HttpClientImpl.<init>(HttpClientImpl.java:155) 
[09:59:27.354] [INFO] [client]  at io.vertx.core.impl.VertxImpl.createHttpClient(VertxImpl.java:338) 
[09:59:27.354] [INFO] [client]  at io.vertx.core.impl.VertxImpl.createHttpClient(VertxImpl.java:350) 
[09:59:27.354] [INFO] [client]  at org.jboss.resteasy.reactive.client.impl.ClientImpl.<init>(ClientImpl.java:170) 
[09:59:27.354] [INFO] [client]  at org.jboss.resteasy.reactive.client.impl.ClientBuilderImpl.build(ClientBuilderImpl.java:244) 
[09:59:27.354] [INFO] [client]  at io.quarkus.rest.client.reactive.runtime.RestClientBuilderImpl.build(RestClientBuilderImpl.java:332) 
[09:59:27.355] [INFO] [client]  at io.quarkus.rest.client.reactive.runtime.RestClientCDIDelegateBuilder.build(RestClientCDIDelegateBuilder.java:64) 
[09:59:27.355] [INFO] [client]  at io.quarkus.rest.client.reactive.runtime.RestClientCDIDelegateBuilder.createDelegate(RestClientCDIDelegateBuilder.java:42) 
[09:59:27.355] [INFO] [client]  at io.quarkus.rest.client.reactive.runtime.RestClientReactiveCDIWrapperBase.<init>(RestClientReactiveCDIWrapperBase.java:20) 
[09:59:27.355] [INFO] [client]  at io.jester.examples.quarkus.greetings.Client$$CDIWrapper.<init>(Unknown Source) 
[09:59:27.356] [INFO] [client]  at io.jester.examples.quarkus.greetings.Client$$CDIWrapper_ClientProxy.<init>(Unknown Source) 
[09:59:27.356] [INFO] [client]  at io.jester.examples.quarkus.greetings.Client$$CDIWrapper_Bean.proxy(Unknown Source) 
[09:59:27.356] [INFO] [client]  at io.jester.examples.quarkus.greetings.Client$$CDIWrapper_Bean.get(Unknown Source) 
[09:59:27.356] [INFO] [client]  at io.jester.examples.quarkus.greetings.Client$$CDIWrapper_Bean.get(Unknown Source) 
[09:59:27.357] [INFO] [client]  ... 26 more 
[09:59:27.357] [INFO] [client] Caused by: java.security.UnrecoverableKeyException: Get Key failed: Given final block not properly padded. Such issues can arise if a bad key is used during decryption. 
[09:59:27.357] [INFO] [client]  at java.base/sun.security.pkcs12.PKCS12KeyStore.engineGetKey(PKCS12KeyStore.java:446) 
[09:59:27.357] [INFO] [client]  at java.base/sun.security.util.KeyStoreDelegator.engineGetKey(KeyStoreDelegator.java:90) 
[09:59:27.357] [INFO] [client]  at java.base/java.security.KeyStore.getKey(KeyStore.java:1057) 
[09:59:27.357] [INFO] [client]  at io.vertx.core.net.impl.KeyStoreHelper.<init>(KeyStoreHelper.java:109) 
[09:59:27.358] [INFO] [client]  at io.vertx.core.net.KeyStoreOptionsBase.getHelper(KeyStoreOptionsBase.java:187) 
[09:59:27.358] [INFO] [client]  at io.vertx.core.net.KeyStoreOptionsBase.getTrustManagerFactory(KeyStoreOptionsBase.java:217) 
[09:59:27.358] [INFO] [client]  at io.vertx.core.net.impl.SSLHelper.getTrustMgrFactory(SSLHelper.java:327) 
[09:59:27.358] [INFO] [client]  at io.vertx.core.net.impl.SSLHelper.getContext(SSLHelper.java:478) 
[09:59:27.358] [INFO] [client]  ... 43 more 
[09:59:27.359] [INFO] [client] Caused by: javax.crypto.BadPaddingException: Given final block not properly padded. Such issues can arise if a bad key is used during decryption. 
[09:59:27.359] [INFO] [client]  at java.base/com.sun.crypto.provider.CipherCore.unpad(CipherCore.java:975) 
[09:59:27.359] [INFO] [client]  at java.base/com.sun.crypto.provider.CipherCore.fillOutputBuffer(CipherCore.java:1056) 
[09:59:27.359] [INFO] [client]  at java.base/com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:853) 
[09:59:27.359] [INFO] [client]  at java.base/com.sun.crypto.provider.PKCS12PBECipherCore.implDoFinal(PKCS12PBECipherCore.java:408) 
[09:59:27.360] [INFO] [client]  at java.base/com.sun.crypto.provider.PKCS12PBECipherCore$PBEWithSHA1AndDESede.engineDoFinal(PKCS12PBECipherCore.java:440) 
[09:59:27.360] [INFO] [client]  at java.base/javax.crypto.Cipher.doFinal(Cipher.java:2202) 
[09:59:27.360] [INFO] [client]  at java.base/sun.security.pkcs12.PKCS12KeyStore.lambda$engineGetKey$0(PKCS12KeyStore.java:387) 
[09:59:27.360] [INFO] [client]  at java.base/sun.security.pkcs12.PKCS12KeyStore$RetryWithZero.run(PKCS12KeyStore.java:283) 
[09:59:27.360] [INFO] [client]  at java.base/sun.security.pkcs12.PKCS12KeyStore.engineGetKey(PKCS12KeyStore.java:381) 
[09:59:27.361] [INFO] [client]  ... 50 more 
```

extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/RestClientBuilderImpl.java

@@ -95,6 +95,11 @@ public RestClientBuilderImpl trustStore(KeyStore trustStore) {
         return this;
     }
 
+    public RestClientBuilderImpl trustStore(KeyStore trustStore, String trustStorePassword) {
+        clientBuilder.trustStore(trustStore, trustStorePassword.toCharArray());
+        return this;
+    }
+
     @Override
     public RestClientBuilderImpl keyStore(KeyStore keyStore, String keystorePassword) {
         clientBuilder.keyStore(keyStore, keystorePassword);

extensions/resteasy-reactive/rest-client-reactive/runtime/src/main/java/io/quarkus/rest/client/reactive/runtime/RestClientCDIDelegateBuilder.java

@@ -182,7 +182,7 @@ private void configureShared(RestClientBuilder builder) {
         }
     }
 
-    private void configureSsl(RestClientBuilder builder) {
+    private void configureSsl(RestClientBuilderImpl builder) {
 
         Optional<String> maybeTrustStore = oneOf(clientConfigByClassName().trustStore, clientConfigByConfigKey().trustStore,
                 configRoot.trustStore);
@@ -249,7 +249,7 @@ private void registerKeyStore(String keyStorePath, RestClientBuilder builder) {
         }
     }
 
-    private void registerTrustStore(String trustStorePath, RestClientBuilder builder) {
+    private void registerTrustStore(String trustStorePath, RestClientBuilderImpl builder) {
         Optional<String> maybeTrustStorePassword = oneOf(clientConfigByClassName().trustStorePassword,
                 clientConfigByConfigKey().trustStorePassword, configRoot.trustStorePassword);
         Optional<String> maybeTrustStoreType = oneOf(clientConfigByClassName().trustStoreType,
@@ -269,7 +269,7 @@ private void registerTrustStore(String trustStorePath, RestClientBuilder builder
                         e);
             }
 
-            builder.trustStore(trustStore);
+            builder.trustStore(trustStore, password);
         } catch (KeyStoreException e) {
             throw new IllegalArgumentException("Failed to initialize trust store from " + trustStorePath, e);
         }

extensions/resteasy-reactive/rest-client-reactive/runtime/src/test/java/io/quarkus/rest/client/reactive/runtime/RestClientCDIDelegateBuilderTest.java

@@ -109,7 +109,7 @@ public void testClientSpecificConfigs() {
         Mockito.verify(restClientBuilderMock).register(MyResponseFilter1.class);
         Mockito.verify(restClientBuilderMock).queryParamStyle(QueryParamStyle.COMMA_SEPARATED);
 
-        Mockito.verify(restClientBuilderMock).trustStore(Mockito.any());
+        Mockito.verify(restClientBuilderMock).trustStore(Mockito.any(), Mockito.anyString());
         Mockito.verify(restClientBuilderMock).keyStore(Mockito.any(), Mockito.anyString());
     }
 
@@ -151,7 +151,7 @@ public void testGlobalConfigs() {
         Mockito.verify(restClientBuilderMock).register(MyResponseFilter2.class);
         Mockito.verify(restClientBuilderMock).queryParamStyle(QueryParamStyle.MULTI_PAIRS);
 
-        Mockito.verify(restClientBuilderMock).trustStore(Mockito.any());
+        Mockito.verify(restClientBuilderMock).trustStore(Mockito.any(), Mockito.anyString());
         Mockito.verify(restClientBuilderMock).keyStore(Mockito.any(), Mockito.anyString());
     }
 

independent-projects/resteasy-reactive/client/runtime/src/main/java/org/jboss/resteasy/reactive/client/impl/ClientBuilderImpl.java

@@ -46,6 +46,7 @@ public class ClientBuilderImpl extends ClientBuilder {
     private char[] keystorePassword;
     private SSLContext sslContext;
     private KeyStore trustStore;
+    private char[] trustStorePassword;
 
     private String proxyHost;
     private int proxyPort;
@@ -88,7 +89,12 @@ public ClientBuilder keyStore(KeyStore keyStore, char[] password) {
 
     @Override
     public ClientBuilder trustStore(KeyStore trustStore) {
+        return trustStore(trustStore, null);
+    }
+
+    public ClientBuilder trustStore(KeyStore trustStore, char[] password) {
         this.trustStore = trustStore;
+        this.trustStorePassword = password;
         return this;
     }
 
@@ -164,7 +170,7 @@ public ClientBuilder clientLogger(ClientLogger clientLogger) {
     @Override
     public ClientImpl build() {
         Buffer keyStore = asBuffer(this.keyStore, keystorePassword);
-        Buffer trustStore = asBuffer(this.trustStore, EMPTY_CHAR_ARARAY);
+        Buffer trustStore = asBuffer(this.trustStore, this.trustStorePassword);
 
         HttpClientOptions options = Optional.ofNullable(configuration.getFromContext(HttpClientOptions.class))
                 .orElseGet(HttpClientOptions::new);
@@ -185,7 +191,7 @@ public ClientImpl build() {
             if (trustStore != null) {
                 JksOptions jks = new JksOptions();
                 jks.setValue(trustStore);
-                jks.setPassword("");
+                jks.setPassword(trustStorePassword == null ? "" : new String(trustStorePassword));
                 options.setTrustStoreOptions(jks);
             }
         }

integration-tests/rest-client-reactive/pom.xml

@@ -11,6 +11,11 @@
     <artifactId>quarkus-integration-test-rest-client-reactive</artifactId>
     <name>Quarkus - Integration Tests - REST Client Reactive</name>
 
+    <properties>
+        <self-signed.trust-store>${project.build.directory}/self-signed.p12</self-signed.trust-store>
+        <self-signed.trust-store-password>changeit</self-signed.trust-store-password>
+    </properties>
+
     <!--todo add ssl tests-->
 
     <dependencies>
@@ -165,6 +170,31 @@
                     </execution>
                 </executions>
             </plugin>
+
+            <plugin>
+                <groupId>uk.co.automatictester</groupId>
+                <artifactId>truststore-maven-plugin</artifactId>
+                <version>${truststore-maven-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>self-signed-truststore</id>
+                        <phase>generate-test-resources</phase>
+                        <goals>
+                            <goal>generate-truststore</goal>
+                        </goals>
+                        <configuration>
+                            <truststoreFormat>PKCS12</truststoreFormat>
+                            <truststoreFile>${self-signed.trust-store}</truststoreFile>
+                            <truststorePassword>${self-signed.trust-store-password}</truststorePassword>
+                            <servers>
+                                <server>self-signed.badssl.com:443</server>
+                            </servers>
+                            <trustAllCertificates>true</trustAllCertificates>
+                            <includeCertificates>LEAF</includeCertificates>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 

integration-tests/rest-client-reactive/src/main/java/io/quarkus/it/rest/client/main/ClientCallingResource.java

@@ -21,6 +21,7 @@
 
 import io.opentelemetry.sdk.testing.exporter.InMemorySpanExporter;
 import io.quarkus.it.rest.client.main.MyResponseExceptionMapper.MyException;
+import io.quarkus.it.rest.client.main.selfsigned.ExternalSelfSignedClient;
 import io.smallrye.mutiny.Uni;
 import io.vertx.core.Future;
 import io.vertx.core.json.Json;
@@ -44,6 +45,9 @@ public class ClientCallingResource {
     @RestClient
     FaultToleranceOnInterfaceClient faultToleranceOnInterfaceClient;
 
+    @RestClient
+    ExternalSelfSignedClient externalSelfSignedClient;
+
     @Inject
     InMemorySpanExporter inMemorySpanExporter;
 
@@ -165,6 +169,9 @@ void init(@Observes Router router) {
         });
 
         router.get("/with%20space").handler(rc -> rc.response().setStatusCode(200).end());
+
+        router.get("/self-signed").blockingHandler(
+                rc -> rc.response().setStatusCode(200).end(String.valueOf(externalSelfSignedClient.invoke().getStatus())));
     }
 
     private Future<Void> success(RoutingContext rc, String body) {

integration-tests/rest-client-reactive/src/main/java/io/quarkus/it/rest/client/main/selfsigned/ExternalSelfSignedClient.java

@@ -0,0 +1,15 @@
+package io.quarkus.it.rest.client.main.selfsigned;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.core.Response;
+
+import org.eclipse.microprofile.faulttolerance.Retry;
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+@RegisterRestClient(baseUri = "https://self-signed.badssl.com/", configKey = "self-signed")
+public interface ExternalSelfSignedClient {
+
+    @GET
+    @Retry(delay = 1000)
+    Response invoke();
+}

integration-tests/rest-client-reactive/src/main/resources/application.properties

@@ -1,4 +1,7 @@
 w-exception-mapper/mp-rest/url=${test.url}
 w-fault-tolerance/mp-rest/url=${test.url}
 io.quarkus.it.rest.client.main.ParamClient/mp-rest/url=${test.url}
-io.quarkus.it.rest.client.multipart.MultipartClient/mp-rest/url=${test.url}
+io.quarkus.it.rest.client.multipart.MultipartClient/mp-rest/url=${test.url}
+# HTTPS
+quarkus.rest-client.self-signed.trust-store=${self-signed.trust-store}
+quarkus.rest-client.self-signed.trust-store-password=${self-signed.trust-store-password}

integration-tests/rest-client-reactive/src/test/java/io/quarkus/it/rest/client/selfsigned/ExternalSelfSignedTestCase.java

@@ -0,0 +1,21 @@
+package io.quarkus.it.rest.client.selfsigned;
+
+import static io.restassured.RestAssured.when;
+import static org.hamcrest.Matchers.is;
+
+import org.junit.jupiter.api.Test;
+
+import io.quarkus.test.junit.QuarkusTest;
+
+@QuarkusTest
+public class ExternalSelfSignedTestCase {
+
+    @Test
+    public void should_accept_self_signed_certs() {
+        when()
+                .get("/self-signed")
+                .then()
+                .statusCode(200)
+                .body(is("200"));
+    }
+}