Allow fetching conversation messages by a specific type.

app/sql.js

@@ -1310,20 +1310,41 @@ async function getUnreadByConversation(conversationId) {
 
 async function getMessagesByConversation(
   conversationId,
-  { limit = 100, receivedAt = Number.MAX_VALUE } = {}
+  { limit = 100, receivedAt = Number.MAX_VALUE, type = null } = {}
 ) {
-  const rows = await db.all(
+  let rows = [];
-    `SELECT json FROM messages WHERE
+  // Filter by a specific type of message
+  if (type) {
+    rows = await db.all(`
+      SELECT json FROM messages WHERE
+        conversationId = $conversationId AND
+        received_at < $received_at AND
+        type = $type
+      ORDER BY received_at DESC
+      LIMIT $limit;
+    `,
+      {
+        $conversationId: conversationId,
+        $received_at: receivedAt,
+        $limit: limit,
+        $type: type,
+      }
+    );
+  } else {
+    rows = await db.all(`
+      SELECT json FROM messages WHERE
         conversationId = $conversationId AND
         received_at < $received_at
       ORDER BY received_at DESC
-     LIMIT $limit;`,
+      LIMIT $limit;
+    `,
       {
         $conversationId: conversationId,
         $received_at: receivedAt,
         $limit: limit,
       }
     );
+  }
  
   return map(rows, row => jsonToObject(row.json));
 }

js/models/conversations.js

@@ -237,7 +237,10 @@
       // Go through the messages and check for any pending friend requests
       const messages = await window.Signal.Data.getMessagesByConversation(
         this.id,
-        { MessageCollection: Whisper.MessageCollection }
+        { 
+          type: 'friend-request',
+          MessageCollection: Whisper.MessageCollection,
+        }
       );
 
       for (const message of messages.models) {
@@ -250,7 +253,10 @@
       // Theoretically all ouur messages could be friend requests, thus we have to unfortunately go through each one :(
       const messages = await window.Signal.Data.getMessagesByConversation(
         this.id,
-        { MessageCollection: Whisper.MessageCollection }
+        { 
+          type: 'friend-request',
+          MessageCollection: Whisper.MessageCollection,
+        }
       );
 
       // We are most likely to find the friend request in the more recent conversations first

js/modules/data.js

@@ -776,11 +776,12 @@ async function getUnreadByConversation(conversationId, { MessageCollection }) {
 
 async function getMessagesByConversation(
   conversationId,
-  { limit = 100, receivedAt = Number.MAX_VALUE, MessageCollection }
+  { limit = 100, receivedAt = Number.MAX_VALUE, MessageCollection, type = null }
 ) {
   const messages = await channels.getMessagesByConversation(conversationId, {
     limit,
     receivedAt,
+    type,
   });
 
   return new MessageCollection(messages);