Add unique index for not-deleted domain names (#2853)

This is a backstop against multiple domain creations for the same domain
name getting through

core/src/test/java/google/registry/model/OteStatsTestHelper.java

@@ -14,17 +14,19 @@
 
 package google.registry.model;
 
+import static google.registry.persistence.transaction.TransactionManagerFactory.tm;
 import static google.registry.testing.DatabaseHelper.createTld;
 import static google.registry.testing.DatabaseHelper.persistActiveDomain;
 import static google.registry.testing.DatabaseHelper.persistActiveHost;
-import static google.registry.testing.DatabaseHelper.persistDeletedDomain;
 import static google.registry.testing.DatabaseHelper.persistDeletedHost;
+import static google.registry.testing.DatabaseHelper.persistDomainAsDeleted;
 import static google.registry.testing.DatabaseHelper.persistPremiumList;
 import static google.registry.testing.DatabaseHelper.persistResource;
 import static google.registry.testing.TestDataHelper.loadBytes;
 import static google.registry.util.DateTimeUtils.END_OF_TIME;
 import static org.joda.money.CurrencyUnit.USD;
 
+import google.registry.model.domain.Domain;
 import google.registry.model.domain.DomainHistory;
 import google.registry.model.eppcommon.Trid;
 import google.registry.model.host.HostHistory;
@@ -49,7 +51,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(persistActiveDomain("restored.tld"))
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_RESTORE)
             .setXmlBytes(getBytes("domain_restore.xml"))
@@ -84,7 +86,7 @@ public final class OteStatsTestHelper {
     DateTime now = DateTime.now(DateTimeZone.UTC);
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("exampleone.tld"))
+            .setDomain(loadOrCreateDomain("exampleone.tld"))
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_CREATE)
             .setXmlBytes(getBytes("domain_create_sunrise.xml"))
@@ -92,15 +94,16 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example-one.tld"))
+            .setDomain(loadOrCreateDomain("example-one.tld"))
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_CREATE)
             .setXmlBytes(getBytes("domain_create_claim_notice.xml"))
             .setModificationTime(now)
             .build());
+    Domain exampleDomain = loadOrCreateDomain("example.tld");
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_CREATE)
             .setXmlBytes(getBytes("domain_create_anchor_tenant_fee_standard.xml"))
@@ -108,7 +111,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_CREATE)
             .setXmlBytes(getBytes("domain_create_dsdata.xml"))
@@ -116,7 +119,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistDeletedDomain("example.tld", now))
+            .setDomain(persistDomainAsDeleted(loadOrCreateDomain("deleted.tld"), now))
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_DELETE)
             .setXmlBytes(getBytes("domain_delete.xml"))
@@ -124,7 +127,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_TRANSFER_APPROVE)
             .setXmlBytes(getBytes("domain_transfer_approve.xml"))
@@ -132,7 +135,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_TRANSFER_CANCEL)
             .setXmlBytes(getBytes("domain_transfer_cancel.xml"))
@@ -140,7 +143,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_TRANSFER_REJECT)
             .setXmlBytes(getBytes("domain_transfer_reject.xml"))
@@ -148,7 +151,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_TRANSFER_REQUEST)
             .setXmlBytes(getBytes("domain_transfer_request.xml"))
@@ -156,7 +159,7 @@ public final class OteStatsTestHelper {
             .build());
     persistResource(
         new DomainHistory.Builder()
-            .setDomain(persistActiveDomain("example.tld"))
+            .setDomain(exampleDomain)
             .setRegistrarId(oteAccount1)
             .setType(Type.DOMAIN_UPDATE)
             .setXmlBytes(getBytes("domain_update_with_secdns.xml"))
@@ -189,4 +192,12 @@ public final class OteStatsTestHelper {
   private static byte[] getBytes(String filename) throws IOException {
     return loadBytes(OteStatsTestHelper.class, filename).read();
   }
+
+  private static Domain loadOrCreateDomain(String domainName) {
+    return tm().transact(
+            () ->
+                EppResourceUtils.loadByForeignKey(
+                    Domain.class, domainName, tm().getTransactionTime()))
+        .orElseGet(() -> persistActiveDomain(domainName));
+  }
 }

core/src/test/java/google/registry/rdap/RdapJsonFormatterTest.java

@@ -112,6 +112,11 @@ class RdapJsonFormatterTest {
     hostNotLinked =
         makeAndPersistHost(
             "ns5.cat.みんな", null, null, clock.nowUtc().minusYears(5), "unicoderegistrar");
+    // Create an unused domain that references hostBoth and hostNoAddresses so that
+    // they will have "associated" (ie, StatusValue.LINKED) status.
+    Domain dog =
+        persistResource(
+            makeDomain("dog.みんな", null, null, null, hostBoth, hostNoAddresses, registrar));
     hostSuperordinatePendingTransfer =
         persistResource(
             makeAndPersistHost(
@@ -119,8 +124,7 @@ class RdapJsonFormatterTest {
                 .asBuilder()
                 .setSuperordinateDomain(
                     persistResource(
-                            makeDomain("dog.みんな", null, null, null, null, null, registrar)
-                                .asBuilder()
+                            dog.asBuilder()
                                 .addStatusValue(StatusValue.PENDING_TRANSFER)
                                 .setTransferData(
                                     new DomainTransferData.Builder()
@@ -150,9 +154,6 @@ class RdapJsonFormatterTest {
                 .setCreationTimeForTest(clock.nowUtc())
                 .setLastEppUpdateTime(null)
                 .build());
-    // Create an unused domain that references hostBoth and hostNoAddresses so that
-    // they will have "associated" (ie, StatusValue.LINKED) status.
-    persistResource(makeDomain("dog.みんな", null, null, null, hostBoth, hostNoAddresses, registrar));
 
     // history entries
     // We create 3 "transfer approved" entries, to make sure we only save the last one

core/src/test/java/google/registry/reporting/spec11/Spec11EmailUtilsTest.java

@@ -253,7 +253,7 @@ class Spec11EmailUtilsTest {
     // Create an inactive domain and an active domain with the same name.
     persistResource(loadByEntity(aDomain).asBuilder().addStatusValue(SERVER_HOLD).build());
     Host host = persistActiveHost("ns1.example.com");
-    aDomain = persistDomainWithHost("a.com", host);
+    aDomain = persistResource(aDomain.asBuilder().setNameservers(host.createVKey()).build());
 
     emailUtils.emailSpec11Reports(
         date,

core/src/test/java/google/registry/tools/DeleteAllocationTokensCommandTest.java

@@ -43,10 +43,14 @@ class DeleteAllocationTokensCommandTest extends CommandTestCase<DeleteAllocation
   private AllocationToken preNot2;
   private AllocationToken othrRed;
   private AllocationToken othrNot;
+  private Domain exampleDomain;
+  private Domain foobarDomain;
 
   @BeforeEach
   void beforeEach() {
     createTlds("foo", "bar");
+    exampleDomain = persistActiveDomain("example.foo");
+    foobarDomain = persistActiveDomain("foo.bar");
     preRed1 = persistToken("prefix12345AA", null, true);
     preRed2 = persistToken("prefixgh8907a", null, true);
     preNot1 = persistToken("prefix2978204", null, false);
@@ -97,8 +101,8 @@ class DeleteAllocationTokensCommandTest extends CommandTestCase<DeleteAllocation
 
   @Test
   void test_defaultOptions_doesntDeletePerDomainTokens() throws Exception {
-    AllocationToken preDom1 = persistToken("prefixasdfg897as", "foo.bar", false);
-    AllocationToken preDom2 = persistToken("prefix98HAZXadbn", "foo.bar", true);
+    AllocationToken preDom1 = persistToken("prefixasdfg897as", foobarDomain, false);
+    AllocationToken preDom2 = persistToken("prefix98HAZXadbn", foobarDomain, true);
     runCommandForced("--prefix", "prefix");
     assertNonexistent(preNot1, preNot2);
     assertThat(reloadTokens(preRed1, preRed2, preDom1, preDom2, othrRed, othrNot))
@@ -107,8 +111,8 @@ class DeleteAllocationTokensCommandTest extends CommandTestCase<DeleteAllocation
 
   @Test
   void test_withDomains_doesDeletePerDomainTokens() throws Exception {
-    AllocationToken preDom1 = persistToken("prefixasdfg897as", "foo.bar", false);
-    AllocationToken preDom2 = persistToken("prefix98HAZXadbn", "foo.bar", true);
+    AllocationToken preDom1 = persistToken("prefixasdfg897as", foobarDomain, false);
+    AllocationToken preDom2 = persistToken("prefix98HAZXadbn", foobarDomain, true);
     runCommandForced("--prefix", "prefix", "--with_domains");
     assertNonexistent(preNot1, preNot2, preDom1);
     assertThat(reloadTokens(preRed1, preRed2, preDom2, othrRed, othrNot))
@@ -164,17 +168,15 @@ class DeleteAllocationTokensCommandTest extends CommandTestCase<DeleteAllocation
     assertThat(thrown).hasMessageThat().isEqualTo("Provided prefix should not be blank");
   }
 
-  private static AllocationToken persistToken(
-      String token, @Nullable String domainName, boolean redeemed) {
+  private AllocationToken persistToken(String token, @Nullable Domain domain, boolean redeemed) {
     AllocationToken.Builder builder =
         new AllocationToken.Builder()
             .setToken(token)
             .setTokenType(SINGLE_USE)
-            .setDomainName(domainName);
+            .setDomainName(domain == null ? null : domain.getDomainName());
     if (redeemed) {
-      String domainToPersist = domainName != null ? domainName : "example.foo";
-      Domain domain = persistActiveDomain(domainToPersist);
-      HistoryEntryId historyEntryId = new HistoryEntryId(domain.getRepoId(), 1051L);
+      String repoId = domain == null ? exampleDomain.getRepoId() : domain.getRepoId();
+      HistoryEntryId historyEntryId = new HistoryEntryId(repoId, 1051L);
       builder.setRedemptionHistoryId(historyEntryId);
     }
     return persistResource(builder.build());

core/src/test/resources/google/registry/rdap/rdapjson_host_pending_transfer.json

@@ -1,6 +1,6 @@
 {
   "objectClassName" : "nameserver",
-  "handle" : "C-ROID",
+  "handle" : "D-ROID",
   "ldhName" : "ns1.dog.xn--q9jyb4c",
   "unicodeName" : "ns1.dog.みんな",
   "status" : ["active", "pending transfer"],

db/src/main/resources/sql/er_diagram/brief_er_diagram.html

@@ -261,11 +261,11 @@ td.section {
     </tr>
     <tr>
      <td class="property_name">generated on</td>
-     <td class="property_value">2025-10-10 17:24:50</td>
+     <td class="property_value">2025-10-23 21:01:05</td>
     </tr>
     <tr>
      <td class="property_name">last flyway file</td>
-     <td id="lastFlywayFile" class="property_value">V213__graceperiodhistory_history_revision_id_hash.sql</td>
+     <td id="lastFlywayFile" class="property_value">V214__domain_unique_domain_name_active.sql</td>
     </tr>
    </tbody>
   </table>
@@ -273,7 +273,7 @@ td.section {
   <p>&nbsp;</p>
   <svg viewBox="0.00 0.00 4903.00 3732.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="erDiagram" style="overflow: hidden; width: 100%; height: 800px">
    <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 3728)">
-    <title>SchemaCrawler_Diagram</title> <polygon fill="white" stroke="transparent" points="-4,4 -4,-3728 4899,-3728 4899,4 -4,4" /> <text text-anchor="start" x="4655" y="-29.8" font-family="Helvetica,sans-Serif" font-size="14.00">generated by</text> <text text-anchor="start" x="4738" y="-29.8" font-family="Helvetica,sans-Serif" font-size="14.00">SchemaCrawler 16.27.1</text> <text text-anchor="start" x="4654" y="-10.8" font-family="Helvetica,sans-Serif" font-size="14.00">generated on</text> <text text-anchor="start" x="4738" y="-10.8" font-family="Helvetica,sans-Serif" font-size="14.00">2025-10-10 17:24:50</text> <polygon fill="none" stroke="#888888" points="4651,-4 4651,-44 4887,-44 4887,-4 4651,-4" /> <!-- allocationtoken_a08ccbef -->
+    <title>SchemaCrawler_Diagram</title> <polygon fill="white" stroke="transparent" points="-4,4 -4,-3728 4899,-3728 4899,4 -4,4" /> <text text-anchor="start" x="4655" y="-29.8" font-family="Helvetica,sans-Serif" font-size="14.00">generated by</text> <text text-anchor="start" x="4738" y="-29.8" font-family="Helvetica,sans-Serif" font-size="14.00">SchemaCrawler 16.27.1</text> <text text-anchor="start" x="4654" y="-10.8" font-family="Helvetica,sans-Serif" font-size="14.00">generated on</text> <text text-anchor="start" x="4738" y="-10.8" font-family="Helvetica,sans-Serif" font-size="14.00">2025-10-23 21:01:05</text> <polygon fill="none" stroke="#888888" points="4651,-4 4651,-44 4887,-44 4887,-4 4651,-4" /> <!-- allocationtoken_a08ccbef -->
     <g id="node1" class="node">
      <title>allocationtoken_a08ccbef</title> <polygon fill="#e9c2f2" stroke="transparent" points="481.5,-978 481.5,-997 667.5,-997 667.5,-978 481.5,-978" /> <text text-anchor="start" x="483.5" y="-984.8" font-family="Helvetica,sans-Serif" font-weight="bold" font-style="italic" font-size="14.00">public."AllocationToken"</text> <polygon fill="#e9c2f2" stroke="transparent" points="667.5,-978 667.5,-997 741.5,-997 741.5,-978 667.5,-978" /> <text text-anchor="start" x="702.5" y="-983.8" font-family="Helvetica,sans-Serif" font-size="14.00">[table]</text> <text text-anchor="start" x="483.5" y="-965.8" font-family="Helvetica,sans-Serif" font-weight="bold" font-style="italic" font-size="14.00">token</text> <text text-anchor="start" x="661.5" y="-964.8" font-family="Helvetica,sans-Serif" font-size="14.00"> </text> <text text-anchor="start" x="669.5" y="-964.8" font-family="Helvetica,sans-Serif" font-size="14.00">text not null</text> <text text-anchor="start" x="483.5" y="-945.8" font-family="Helvetica,sans-Serif" font-size="14.00">domain_name</text> <text text-anchor="start" x="661.5" y="-945.8" font-family="Helvetica,sans-Serif" font-size="14.00"> </text> <text text-anchor="start" x="669.5" y="-945.8" font-family="Helvetica,sans-Serif" font-size="14.00">text</text> <text text-anchor="start" x="483.5" y="-926.8" font-family="Helvetica,sans-Serif" font-size="14.00">redemption_domain_repo_id</text> <text text-anchor="start" x="661.5" y="-926.8" font-family="Helvetica,sans-Serif" font-size="14.00"> </text> <text text-anchor="start" x="669.5" y="-926.8" font-family="Helvetica,sans-Serif" font-size="14.00">text</text> <text text-anchor="start" x="483.5" y="-907.8" font-family="Helvetica,sans-Serif" font-size="14.00">token_type</text> <text text-anchor="start" x="661.5" y="-907.8" font-family="Helvetica,sans-Serif" font-size="14.00"> </text> <text text-anchor="start" x="669.5" y="-907.8" font-family="Helvetica,sans-Serif" font-size="14.00">text</text> <polygon fill="none" stroke="#888888" points="480.5,-901.5 480.5,-998.5 742.5,-998.5 742.5,-901.5 480.5,-901.5" />
     </g>

db/src/main/resources/sql/flyway.txt

@@ -211,3 +211,4 @@ V210__allocationtoken_token_hash.sql
 V211__domainhistoryhost_history_revision_id_hash.sql
 V212__domaindsdatahistory_history_revision_id_hash.sql
 V213__graceperiodhistory_history_revision_id_hash.sql
+V214__domain_unique_domain_name_active.sql

db/src/main/resources/sql/flyway/V214__domain_unique_domain_name_active.sql

@@ -0,0 +1,16 @@
+-- Copyright 2025 The Nomulus Authors. All Rights Reserved.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+
+CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS domain_no_duplicate_active ON "Domain"
+  (domain_name) WHERE (deletion_time = '294247-01-10T04:00:54.775Z');

db/src/main/resources/sql/schema/nomulus.golden.sql

@@ -1987,6 +1987,13 @@ CREATE INDEX domain_history_to_ds_data_history_idx ON public."DomainDsDataHistor
 CREATE INDEX domain_history_to_transaction_record_idx ON public."DomainTransactionRecord" USING btree (domain_repo_id, history_revision_id);
 
 
+--
+-- Name: domain_no_duplicate_active; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE UNIQUE INDEX domain_no_duplicate_active ON public."Domain" USING btree (domain_name) WHERE (deletion_time = '294247-01-10 04:00:54.775+00'::timestamp with time zone);
+
+
 --
 -- Name: domaindsdatahistory_domain_history_revision_id_hash; Type: INDEX; Schema: public; Owner: -
 --