automod: don't use log system for alert actions, require channel id directly instead; allow disabling logging from specific rules

src/data/DefaultLogMessages.json

@@ -58,6 +58,5 @@
   "POSTED_SCHEDULED_MESSAGE": "\uD83D\uDCE8 Posted scheduled message (`{messageId}`) to {channelMention(channel)} as scheduled by {userMention(author)}",
 
   "BOT_ALERT": "⚠ {tmplEval(body)}",
-  "AUTOMOD_ALERT": "{text}",
   "AUTOMOD_ACTION": "\uD83E\uDD16 Automod rule **{rule}** triggered by {userMention(user)}. Actions taken: **{actionsTaken}**\n{matchSummary}"
 }

src/data/LogType.ts

@@ -58,6 +58,5 @@ export enum LogType {
   POSTED_SCHEDULED_MESSAGE,
 
   BOT_ALERT,
-  AUTOMOD_ALERT,
   AUTOMOD_ACTION,
 }

src/plugins/Automod.ts

@@ -13,11 +13,12 @@ import {
   SECONDS,
   stripObjectToScalars,
   tNullable,
+  UnknownUser,
   verboseChannelMention,
 } from "../utils";
 import { decorators as d } from "knub";
 import { mergeConfig } from "knub/dist/configUtils";
-import { Invite, Member, Message } from "eris";
+import { Invite, Member, Message, TextChannel } from "eris";
 import escapeStringRegexp from "escape-string-regexp";
 import { SimpleCache } from "../SimpleCache";
 import { Queue } from "../Queue";
@@ -32,6 +33,7 @@ import { GuildArchives } from "../data/GuildArchives";
 import { GuildLogs } from "../data/GuildLogs";
 import { SavedMessage } from "../data/entities/SavedMessage";
 import moment from "moment-timezone";
+import { renderTemplate } from "../templateFormatter";
 
 type MessageInfo = { channelId: string; messageId: string };
 
@@ -81,7 +83,7 @@ interface RaidSpamTriggerMatchResult extends TriggerMatchResult {
 interface OtherSpamTriggerMatchResult extends TriggerMatchResult {
   type: "otherspam";
   actionType: RecentActionType;
-  userIds: string[];
+  userId: string;
 }
 
 type AnyTriggerMatchResult =
@@ -233,6 +235,7 @@ const BanAction = t.type({
 });
 
 const AlertAction = t.type({
+  channel: t.string,
   text: t.string,
 });
 
@@ -240,6 +243,8 @@ const ChangeNicknameAction = t.type({
   name: t.string,
 });
 
+const LogAction = t.boolean;
+
 /**
  * FULL CONFIG SCHEMA
  */
@@ -273,6 +278,7 @@ const Rule = t.type({
     ban: tNullable(BanAction),
     alert: tNullable(AlertAction),
     change_nickname: tNullable(ChangeNicknameAction),
+    log: tNullable(LogAction),
   }),
 });
 type TRule = t.TypeOf<typeof Rule>;
@@ -487,6 +493,13 @@ export class AutomodPlugin extends ZeppelinPlugin<TConfigSchema> {
             }
           }
         }
+
+        // Enable logging of automod actions by default
+        if (rule["actions"] && typeof rule["actions"] === "object") {
+          if (rule["actions"]["log"] == null) {
+            rule["actions"]["log"] = true;
+          }
+        }
       }
     }
 
@@ -1153,10 +1166,7 @@ export class AutomodPlugin extends ZeppelinPlugin<TConfigSchema> {
     }
 
     if (rule.actions.change_nickname) {
-      const userIdsToChange =
-        matchResult.type === "raidspam" || matchResult.type === "otherspam"
-          ? matchResult.userIds
-          : [matchResult.userId];
+      const userIdsToChange = matchResult.type === "raidspam" ? matchResult.userIds : [matchResult.userId];
 
       for (const userId of userIdsToChange) {
         if (this.recentNicknameChanges.has(userId)) continue;
@@ -1175,30 +1185,45 @@ export class AutomodPlugin extends ZeppelinPlugin<TConfigSchema> {
       actionsTaken.push("nickname");
     }
 
-    if (rule.actions.alert || matchResult.type !== "raidspam") {
-      const user = await this.resolveUser((matchResult as any).userId || "0");
+    // Don't wait for the rest before continuing to other automod items in the queue
+    (async () => {
+      const user = matchResult.type !== "raidspam" ? this.getUser(matchResult.userId) : new UnknownUser();
+      const users = matchResult.type === "raidspam" ? matchResult.userIds.map(id => this.getUser(id)) : [];
+      const safeUser = stripObjectToScalars(user);
+      const safeUsers = users.map(u => stripObjectToScalars(u));
 
       if (rule.actions.alert) {
-        const text = rule.actions.alert.text;
-        this.getLogs().log(LogType.AUTOMOD_ALERT, {
-          rule: rule.name,
-          user: stripObjectToScalars(user),
-          text,
-          matchSummary,
-        });
-
-        actionsTaken.push("alert");
+        const channel = this.guild.channels.get(rule.actions.alert.channel);
+        if (channel && channel instanceof TextChannel) {
+          const text = rule.actions.alert.text;
+          const rendered = await renderTemplate(rule.actions.alert.text, {
+            rule: rule.name,
+            user: safeUser,
+            users: safeUsers,
+            text,
+            matchSummary,
+          });
+          channel.createMessage(rendered);
+          actionsTaken.push("alert");
+        } else {
+          this.getLogs().log(LogType.BOT_ALERT, {
+            body: `Invalid channel id \`${rule.actions.alert.channel}\` for alert action in automod rule **${
+              rule.name
+            }**`,
+          });
+        }
       }
 
-      if (matchResult.type !== "raidspam") {
+      if (rule.actions.log) {
         this.getLogs().log(LogType.AUTOMOD_ACTION, {
           rule: rule.name,
-          user: stripObjectToScalars(user),
+          user: safeUser,
+          users: safeUsers,
           actionsTaken: actionsTaken.length ? actionsTaken.join(", ") : "<none>",
           matchSummary,
         });
       }
-    }
+    })();
   }
 
   protected onMessageCreate(msg: SavedMessage) {

src/plugins/ZeppelinPlugin.ts

@@ -204,6 +204,11 @@ export class ZeppelinPlugin<TConfig extends {} = IBasePluginConfig> extends Plug
     return this.getMergedOptions();
   }
 
+  getUser(userResolvable: string): User | UnknownUser {
+    const id = resolveUserId(this.bot, userResolvable);
+    return id ? this.bot.users.get(id) || new UnknownUser({ id }) : new UnknownUser();
+  }
+
   /**
    * Resolves a user from the passed string. The passed string can be a user id, a user mention, a full username (with discrim), etc.
    * If the user is not found in the cache, it's fetched from the API.