Add config option to disable message deletion forwarding

config/config.sample.yaml

@@ -4,6 +4,7 @@ bridge:
   disablePresence: false
   disableTypingNotifications: false
   disableDiscordMentions: false
+  disableDeletionForwarding: false
 auth:
   clientID: "12345" # Get from discord
   secret: "blah"

config/config.schema.yaml

@@ -16,6 +16,8 @@ properties:
             type: "boolean"
           disableDiscordMentions:
             type: "boolean"
+          disableDeletionForwarding:
+            type: "boolean"
     auth:
         type: "object"
         required: ["botToken"]

src/bot.ts

@@ -65,7 +65,9 @@ export class DiscordBot {
       client.on("guildMemberAdd", (newMember) => { this.AddGuildMember(newMember); });
       client.on("guildMemberRemove", (oldMember) => { this.RemoveGuildMember(oldMember); });
       client.on("guildMemberUpdate", (_, newMember) => { this.UpdateGuildMember(newMember); });
+      if (!this.config.bridge.disableDeletionForwarding) {
         client.on("messageDelete", (msg) => {this.DeleteDiscordMessage(msg); });
+      }
       client.on("message", (msg) => { Bluebird.delay(MSG_PROCESS_DELAY).then(() => {
           this.OnMessage(msg);
         });
@@ -256,6 +258,7 @@ export class DiscordBot {
         const channel = <Discord.TextChannel> this.bot.guilds.get(storeEvent.GuildId)
                         .channels.get(storeEvent.ChannelId);
         const msg = await channel.fetchMessage(storeEvent.DiscordId);
+        if (!this.config.bridge.disableDeletionForwarding) {
           try {
               await msg.delete();
               log.info("DiscordBot", `Deleted message`);
@@ -264,6 +267,7 @@ export class DiscordBot {
           }
         }
     }
+  }
 
   public OnUserQuery (userId: string): any {
     return false;

src/config.ts

@@ -14,6 +14,7 @@ class DiscordBridgeConfigBridge {
   public disablePresence: boolean;
   public disableTypingNotifications: boolean;
   public disableDiscordMentions: boolean;
+  public disableDeletionForwarding: boolean;
 }
 
 class DiscordBridgeConfigDatabase {