Use transfer acceleration

// FREEBIE

pom.xml

@@ -66,7 +66,7 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-s3</artifactId>
-            <version>1.10.6</version>
+            <version>1.11.115</version>
         </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>

src/main/java/org/whispersystems/textsecuregcm/util/UrlSigner.java

@@ -21,6 +21,7 @@ import com.amazonaws.auth.AWSCredentials;
 import com.amazonaws.auth.BasicAWSCredentials;
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.AmazonS3Client;
+import com.amazonaws.services.s3.S3ClientOptions;
 import com.amazonaws.services.s3.model.GeneratePresignedUrlRequest;
 import org.whispersystems.textsecuregcm.configuration.S3Configuration;
 
@@ -42,10 +43,12 @@ public class UrlSigner {
   public URL getPreSignedUrl(long attachmentId, HttpMethod method) {
     AmazonS3                    client  = new AmazonS3Client(credentials);
     GeneratePresignedUrlRequest request = new GeneratePresignedUrlRequest(bucket, String.valueOf(attachmentId), method);
-
+    
     request.setExpiration(new Date(System.currentTimeMillis() + DURATION));
     request.setContentType("application/octet-stream");
 
+    client.setS3ClientOptions(S3ClientOptions.builder().setAccelerateModeEnabled(true).build());
+
     return client.generatePresignedUrl(request);
   }
 

src/test/java/org/whispersystems/textsecuregcm/tests/util/UrlSignerTest.java

@@ -0,0 +1,30 @@
+package org.whispersystems.textsecuregcm.tests.util;
+
+import com.amazonaws.HttpMethod;
+import org.junit.Test;
+import org.whispersystems.textsecuregcm.configuration.S3Configuration;
+import org.whispersystems.textsecuregcm.util.UrlSigner;
+
+import java.net.URL;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class UrlSignerTest {
+
+  @Test
+  public void testTransferAcceleration() {
+    S3Configuration configuration = mock(S3Configuration.class);
+    when(configuration.getAccessKey()).thenReturn("foo");
+    when(configuration.getAccessSecret()).thenReturn("bar");
+    when(configuration.getAttachmentsBucket()).thenReturn("attachments-test");
+
+    UrlSigner signer = new UrlSigner(configuration);
+    URL url = signer.getPreSignedUrl(1234, HttpMethod.GET);
+
+    System.out.println("The URL: " + url);
+    assertThat(url).hasHost("attachments-test.s3-accelerate.amazonaws.com");
+  }
+
+}