ssb: Better errors for failing to decrypt private messages.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🦀",
-	"previous": "&XjeQP84BXBKSEViNV3c10QisKyGv14Kngfwx3IqorX8=.sha256"
+	"previous": "&SM9hI4To1+vk52CT8S2VvnhAynikIX27IFxqZIfNGAY=.sha256"
 }

apps/ssb/tf-tab-news.js

@@ -112,6 +112,7 @@ class TfTabNewsElement extends LitElement {
 	unread_status(channel) {
 		if (
 			this.channels_latest[channel] &&
+			this.channels_latest[channel] > 0 &&
 			(this.channels_unread[channel] === undefined ||
 				this.channels_unread[channel] <= this.channels_latest[channel])
 		) {

src/ssb.js.c

@@ -2238,6 +2238,8 @@ static void _tf_ssb_private_message_decrypt_work(tf_ssb_t* ssb, void* user_data)
 	tf_ssb_release_db_reader(ssb, db);
 
 	if (found)
+	{
+		if (work->message_size >= strlen(".box") && memcmp(work->message + work->message_size - strlen(".box"), ".box", strlen(".box")) == 0)
 		{
 			uint8_t* decoded = tf_malloc(work->message_size);
 			int decoded_length = tf_base64_decode(work->message, work->message_size - strlen(".box"), decoded, work->message_size);
@@ -2283,11 +2285,16 @@ static void _tf_ssb_private_message_decrypt_work(tf_ssb_t* ssb, void* user_data)
 			}
 			else
 			{
-			work->error = "Encrypted message was not long enough to contains its one-time public key.";
+				work->error = "Encrypted message was not long enough to contain its one-time public key.";
 			}
 			tf_free(decoded);
 		}
 		else
+		{
+			work->error = "Message does not end in \".box\".";
+		}
+	}
+	else
 	{
 		work->error = "Private key not found for user.";
 	}