Handle null AccessControlPolicy.aclList

Also add toString methods.

src/main/java/org/gaul/s3proxy/AccessControlPolicy.java

@@ -20,6 +20,7 @@ import java.util.Collection;
 
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
+import com.google.common.base.Objects;
 
 /** Represent an Amazon AccessControlPolicy for a container or object. */
 // CHECKSTYLE:OFF
@@ -29,11 +30,27 @@ final class AccessControlPolicy {
     @JacksonXmlProperty(localName = "AccessControlList")
     AccessControlList aclList;
 
+    @Override
+    public String toString() {
+        return Objects.toStringHelper(AccessControlList.class)
+                .add("owner", owner)
+                .add("aclList", aclList)
+                .toString();
+    }
+
     static final class Owner {
         @JacksonXmlProperty(localName = "ID")
         String id;
         @JacksonXmlProperty(localName = "DisplayName")
         String displayName;
+
+        @Override
+        public String toString() {
+            return Objects.toStringHelper(Owner.class)
+                    .add("id", id)
+                    .add("displayName", displayName)
+                    .toString();
+        }
     }
 
     static final class AccessControlList {
@@ -41,12 +58,27 @@ final class AccessControlPolicy {
         @JacksonXmlElementWrapper(useWrapping = false)
         Collection<Grant> grants;
 
+        @Override
+        public String toString() {
+            return Objects.toStringHelper(AccessControlList.class)
+                    .add("grants", grants)
+                    .toString();
+        }
+
         static final class Grant {
             @JacksonXmlProperty(localName = "Grantee")
             Grantee grantee;
             @JacksonXmlProperty(localName = "Permission")
             String permission;
 
+            @Override
+            public String toString() {
+                return Objects.toStringHelper(Grant.class)
+                        .add("grantee", grantee)
+                        .add("permission", permission)
+                        .toString();
+            }
+
             static final class Grantee {
                 @JacksonXmlProperty(namespace = "xsi", localName = "type",
                         isAttribute = true)
@@ -59,6 +91,17 @@ final class AccessControlPolicy {
                 String emailAddress;
                 @JacksonXmlProperty(localName = "URI")
                 String uri;
+
+                @Override
+                public String toString() {
+                    return Objects.toStringHelper(Grantee.class)
+                            .add("type", type)
+                            .add("id", id)
+                            .add("displayName", displayName)
+                            .add("emailAddress", emailAddress)
+                            .add("uri", uri)
+                            .toString();
+                }
             }
         }
     }

src/main/java/org/gaul/s3proxy/S3ProxyHandler.java

@@ -889,19 +889,21 @@ final class S3ProxyHandler extends AbstractHandler {
 
         boolean ownerFullControl = false;
         boolean allUsersRead = false;
-        for (AccessControlPolicy.AccessControlList.Grant grant :
-                policy.aclList.grants) {
-            if (grant.grantee.type.equals("CanonicalUser") &&
-                    grant.grantee.id.equals(FAKE_OWNER_ID) &&
-                    grant.permission.equals("FULL_CONTROL")) {
-                ownerFullControl = true;
-            } else if (grant.grantee.type.equals("Group") &&
-                    grant.grantee.uri.equals("http://acs.amazonaws.com/" +
-                            "groups/global/AllUsers") &&
-                    grant.permission.equals("READ")) {
-                allUsersRead = true;
-            } else {
-                throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED);
+        if (policy.aclList != null) {
+            for (AccessControlPolicy.AccessControlList.Grant grant :
+                    policy.aclList.grants) {
+                if (grant.grantee.type.equals("CanonicalUser") &&
+                        grant.grantee.id.equals(FAKE_OWNER_ID) &&
+                        grant.permission.equals("FULL_CONTROL")) {
+                    ownerFullControl = true;
+                } else if (grant.grantee.type.equals("Group") &&
+                        grant.grantee.uri.equals("http://acs.amazonaws.com/" +
+                                "groups/global/AllUsers") &&
+                        grant.permission.equals("READ")) {
+                    allUsersRead = true;
+                } else {
+                    throw new S3Exception(S3ErrorCode.NOT_IMPLEMENTED);
+                }
             }
         }