Add hasEmailAddress to IdentifiedUser

This allows validation code to pass in an email address
for checking, and lets IdentifiedUser worry about how
that occurs.

This refactoring opens the door to delegating the check
to backend systems that are not able to supply the entire
valid email list for a user.

Change-Id: I3db2b34d311d0c8f6f5c0cfdaa109d44fd79e264

gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/account/AccountSecurityImpl.java

@@ -144,7 +144,7 @@ class AccountSecurityImpl extends BaseServiceImplementation implements
           me.setFullName(Strings.emptyToNull(name));
         }
         if (!Strings.isNullOrEmpty(emailAddr)
-            && !self.getEmailAddresses().contains(emailAddr)) {
+            && !self.hasEmailAddress(emailAddr)) {
           throw new Failure(new PermissionDeniedException("Email address must be verified"));
         }
         me.setPreferredEmail(Strings.emptyToNull(emailAddr));

gerrit-server/src/main/java/com/google/gerrit/server/IdentifiedUser.java

@@ -270,6 +270,10 @@ public class IdentifiedUser extends CurrentUser {
     return diffPref;
   }
 
+  public boolean hasEmailAddress(String email) {
+    return getEmailAddresses().contains(email);
+  }
+
   public Set<String> getEmailAddresses() {
     if (emailAddresses == null) {
       emailAddresses = state().getEmailAddresses();

gerrit-server/src/main/java/com/google/gerrit/server/account/Emails.java

@@ -66,7 +66,7 @@ public class Emails implements
         throw new ResourceNotFoundException();
       }
       return new AccountResource.Email(rsrc.getUser(), email);
-    } else if (rsrc.getUser().getEmailAddresses().contains(id.get())) {
+    } else if (rsrc.getUser().hasEmailAddress(id.get())) {
       return new AccountResource.Email(rsrc.getUser(), id.get());
     } else {
       throw new ResourceNotFoundException();

gerrit-server/src/main/java/com/google/gerrit/server/git/MergeUtil.java

@@ -379,8 +379,7 @@ public class MergeUtil {
 
       final Timestamp dt = submitter.getGranted();
       final TimeZone tz = myIdent.getTimeZone();
-      if (emails.size() == 1
-          && who.getEmailAddresses().contains(emails.iterator().next())) {
+      if (emails.size() == 1 && who.hasEmailAddress(emails.iterator().next())) {
         authorIdent =
             new PersonIdent(codeReviewCommits.get(0).getAuthorIdent(), dt, tz);
       } else {

gerrit-server/src/main/java/com/google/gerrit/server/git/ReceiveCommits.java

@@ -2279,7 +2279,7 @@ public class ReceiveCommits {
           break;
         }
 
-        if (defaultName && currentUser.getEmailAddresses().contains(
+        if (defaultName && currentUser.hasEmailAddress(
               c.getCommitterIdent().getEmailAddress())) {
           try {
             Account a = db.accounts().get(currentUser.getAccountId());

gerrit-server/src/main/java/com/google/gerrit/server/git/validators/CommitValidators.java

@@ -394,7 +394,7 @@ public class CommitValidators {
             if (e != null) {
               sboAuthor |= author.getEmailAddress().equals(e);
               sboCommitter |= committer.getEmailAddress().equals(e);
-              sboMe |= currentUser.getEmailAddresses().contains(e);
+              sboMe |= currentUser.hasEmailAddress(e);
             }
           }
         }
@@ -425,7 +425,7 @@ public class CommitValidators {
       IdentifiedUser currentUser = (IdentifiedUser) refControl.getCurrentUser();
       final PersonIdent author = receiveEvent.commit.getAuthorIdent();
 
-      if (!currentUser.getEmailAddresses().contains(author.getEmailAddress())
+      if (!currentUser.hasEmailAddress(author.getEmailAddress())
           && !refControl.canForgeAuthor()) {
         List<CommitValidationMessage> messages = new LinkedList<>();
 
@@ -454,8 +454,7 @@ public class CommitValidators {
         CommitReceivedEvent receiveEvent) throws CommitValidationException {
       IdentifiedUser currentUser = (IdentifiedUser) refControl.getCurrentUser();
       final PersonIdent committer = receiveEvent.commit.getCommitterIdent();
-      if (!currentUser.getEmailAddresses()
-          .contains(committer.getEmailAddress())
+      if (!currentUser.hasEmailAddress(committer.getEmailAddress())
           && !refControl.canForgeCommitter()) {
         List<CommitValidationMessage> messages = new LinkedList<>();
         messages.add(getInvalidEmailError(receiveEvent.commit, "committer", committer,

gerrit-server/src/main/java/com/google/gerrit/server/project/RefControl.java

@@ -297,7 +297,7 @@ public class RefControl {
         if (getCurrentUser().isIdentifiedUser()) {
           final IdentifiedUser user = (IdentifiedUser) getCurrentUser();
           final String addr = tagger.getEmailAddress();
-          valid = user.getEmailAddresses().contains(addr);
+          valid = user.hasEmailAddress(addr);
         } else {
           valid = false;
         }