feat: Security

toju-app/src/app/infrastructure/mobile/logic/mobile-sqlite-row-mapper.rules.ts

@@ -23,6 +23,8 @@ export interface MessageRow {
   linkMetadata?: string | null;
   kind?: string | null;
   systemEvent?: string | null;
+  revision?: number | null;
+  headHash?: string | null;
 }
 
 export interface UserRow {
@@ -102,7 +104,9 @@ export function messageToRow(message: Message): MessageRow {
     replyToId: message.replyToId ?? null,
     linkMetadata: encodeJson(message.linkMetadata),
     kind: message.kind ?? null,
-    systemEvent: message.systemEvent ?? null
+    systemEvent: message.systemEvent ?? null,
+    revision: message.revision ?? 0,
+    headHash: message.headHash ?? null
   };
 }
 
@@ -116,6 +120,8 @@ export function rowToMessage(row: MessageRow, reactions: Reaction[] = []): Messa
     content: row.content,
     timestamp: row.timestamp,
     editedAt: row.editedAt ?? undefined,
+    revision: row.revision ?? 0,
+    headHash: row.headHash ?? undefined,
     isDeleted: row.isDeleted === 1,
     replyToId: row.replyToId ?? undefined,
     linkMetadata: decodeJson(row.linkMetadata),

toju-app/src/app/infrastructure/mobile/logic/mobile-sqlite-schema.rules.ts

@@ -2,7 +2,7 @@
 export const MOBILE_SQLITE_DATABASE_NAME = 'metoyou';
 
 /** Bump when adding DDL statements; stored in meta table. */
-export const MOBILE_SQLITE_SCHEMA_VERSION = 2;
+export const MOBILE_SQLITE_SCHEMA_VERSION = 3;
 
 const META_SCHEMA_VERSION_KEY = 'mobile_sqlite_schema_version';
 
@@ -23,7 +23,9 @@ export function buildMobileSqliteSchemaStatements(): string[] {
       replyToId TEXT,
       linkMetadata TEXT,
       kind TEXT,
-      systemEvent TEXT
+      systemEvent TEXT,
+      revision INTEGER NOT NULL DEFAULT 0,
+      headHash TEXT
     )`,
     'CREATE INDEX IF NOT EXISTS idx_messages_room_id ON messages(roomId)',
     'CREATE INDEX IF NOT EXISTS idx_messages_timestamp ON messages(timestamp)',
@@ -136,6 +138,11 @@ const SCHEMA_V2_MESSAGE_COLUMNS = [
   'ALTER TABLE messages ADD COLUMN systemEvent TEXT'
 ];
 
+const SCHEMA_V3_MESSAGE_COLUMNS = [
+  'ALTER TABLE messages ADD COLUMN revision INTEGER NOT NULL DEFAULT 0',
+  'ALTER TABLE messages ADD COLUMN headHash TEXT'
+];
+
 /** Returns DDL statements that still need to run for the stored schema version. */
 export function resolveMobileSqliteMigrationStatements(storedVersion: number): string[] {
   if (storedVersion >= MOBILE_SQLITE_SCHEMA_VERSION) {
@@ -153,5 +160,10 @@ export function resolveMobileSqliteMigrationStatements(storedVersion: number): s
     statements.push(`INSERT OR REPLACE INTO meta (key, value) VALUES ('${META_SCHEMA_VERSION_KEY}', '2')`);
   }
 
+  if (storedVersion < 3) {
+    statements.push(...SCHEMA_V3_MESSAGE_COLUMNS);
+    statements.push(`INSERT OR REPLACE INTO meta (key, value) VALUES ('${META_SCHEMA_VERSION_KEY}', '3')`);
+  }
+
   return statements;
 }