fix(forums): validate guild forum inputs

2026-06-20 07:26:18 +00:00 · 2026-06-15 20:13:42 +02:00
parent c48e01cb8e
commit c98261d8c3
11 changed files with 201 additions and 8 deletions
@@ -0,0 +1,62 @@
+package com.eu.habbo.messages.incoming.guilds.forums;
+
+import org.junit.jupiter.api.Test;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class GuildForumInputGuardContractTest {
+    @Test
+    void forumHandlersValidateClientProvidedIds() throws Exception {
+        Path base = Path.of("src/main/java/com/eu/habbo/messages/incoming/guilds/forums");
+
+        for (String handler : List.of(
+                "GuildForumPostThreadEvent.java",
+                "GuildForumModerateMessageEvent.java",
+                "GuildForumModerateThreadEvent.java",
+                "GuildForumThreadUpdateEvent.java",
+                "GuildForumThreadsEvent.java",
+                "GuildForumThreadsMessagesEvent.java",
+                "GuildForumMarkAsReadEvent.java",
+                "GuildForumUpdateSettingsEvent.java"
+        )) {
+            String source = Files.readString(base.resolve(handler));
+
+            assertTrue(source.contains("GuildForumInputGuard.isPositiveId"),
+                    handler + " must reject zero or negative client-provided ids");
+        }
+    }
+
+    @Test
+    void forumHandlersBoundExpensiveClientInputs() throws Exception {
+        Path base = Path.of("src/main/java/com/eu/habbo/messages/incoming/guilds/forums");
+
+        String messages = Files.readString(base.resolve("GuildForumThreadsMessagesEvent.java"));
+        String markRead = Files.readString(base.resolve("GuildForumMarkAsReadEvent.java"));
+        String settings = Files.readString(base.resolve("GuildForumUpdateSettingsEvent.java"));
+        String moderateThread = Files.readString(base.resolve("GuildForumModerateThreadEvent.java"));
+        String moderateMessage = Files.readString(base.resolve("GuildForumModerateMessageEvent.java"));
+
+        assertTrue(messages.contains("GuildForumInputGuard.isValidPage(index, limit)"),
+                "thread message reads must bound index/limit before fetching comments");
+        assertTrue(markRead.contains("GuildForumInputGuard.isValidMarkReadBatch(count)"),
+                "mark-as-read must bound the client-provided batch count before DB writes");
+        assertTrue(settings.contains("GuildForumInputGuard.isSettingsState"),
+                "forum settings must reject unknown SettingsState values");
+        assertTrue(moderateThread.contains("GuildForumInputGuard.isThreadModerationState(state)"),
+                "thread moderation must reject unknown ForumThreadState values");
+        assertTrue(moderateMessage.contains("GuildForumInputGuard.isMessageModerationState(state)"),
+                "message moderation must reject unknown ForumThreadState values");
+    }
+
+    @Test
+    void forumPostsNormalizeTextBeforeFiltering() throws Exception {
+        String source = Files.readString(Path.of("src/main/java/com/eu/habbo/messages/incoming/guilds/forums/GuildForumPostThreadEvent.java"));
+
+        assertTrue(source.contains("GuildForumInputGuard.normalize(this.packet.readString())"),
+                "forum post subject and body should be normalized before word filtering and length checks");
+    }
+}
@@ -0,0 +1,41 @@
+package com.eu.habbo.messages.incoming.guilds.forums;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class GuildForumInputGuardTest {
+    @Test
+    void normalizesNullableText() {
+        assertEquals("", GuildForumInputGuard.normalize(null));
+        assertEquals("hello", GuildForumInputGuard.normalize("  hello  "));
+    }
+
+    @Test
+    void validatesIdsAndPaging() {
+        assertFalse(GuildForumInputGuard.isPositiveId(0));
+        assertTrue(GuildForumInputGuard.isPositiveId(1));
+        assertFalse(GuildForumInputGuard.isValidPage(-1, 20));
+        assertFalse(GuildForumInputGuard.isValidPage(0, 0));
+        assertTrue(GuildForumInputGuard.isValidPage(0, GuildForumInputGuard.MAX_PAGE_LIMIT));
+        assertFalse(GuildForumInputGuard.isValidPage(0, GuildForumInputGuard.MAX_PAGE_LIMIT + 1));
+    }
+
+    @Test
+    void validatesBatchAndStates() {
+        assertFalse(GuildForumInputGuard.isValidMarkReadBatch(0));
+        assertTrue(GuildForumInputGuard.isValidMarkReadBatch(GuildForumInputGuard.MAX_MARK_READ_BATCH));
+        assertFalse(GuildForumInputGuard.isValidMarkReadBatch(GuildForumInputGuard.MAX_MARK_READ_BATCH + 1));
+
+        assertTrue(GuildForumInputGuard.isSettingsState(0));
+        assertTrue(GuildForumInputGuard.isSettingsState(3));
+        assertFalse(GuildForumInputGuard.isSettingsState(4));
+
+        assertTrue(GuildForumInputGuard.isThreadModerationState(20));
+        assertFalse(GuildForumInputGuard.isThreadModerationState(999));
+        assertTrue(GuildForumInputGuard.isMessageModerationState(10));
+        assertFalse(GuildForumInputGuard.isMessageModerationState(0));
+    }
+}