Slack: move botToken to AuthHub when needed (#458)

* Slack: move `botToken` to AuthHub when needed

* update

* Slack (patch) move AuthHub code

* deps

* tests

* remove engine dep change

* Update package.json

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update test/slack/lib.test.js

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix rabbit!

* 🐇 test

* call AuthHub instead of engine

* update tests

* - register `/auth-hub/send-message` only in AuthHub
- add `x-appmixer-version-slack` when calling authhub
- tests

* add version endpoint for AuthHub and comment out unused code

* remove unused dependency 'form-data' from package-lock.json

* update axios to version 1.8.4 and clean up package.json

* update

* update

* deps

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: jirihofman

package-lock.json

@@ -5,10 +5,12 @@
         "test-unit-coverage": "nyc --reporter=lcov --reporter=text-summary mocha --recursive --exit"
     },
     "devDependencies": {
+        "@slack/web-api": "^7.3.1",
         "axios": "^0.22.0",
         "content-type": "^1.0.4",
         "eslint": "^8.43.0",
         "form-data": "4.0.0",
+        "html-entities": "^1.2.0",
         "ip-address": "^10.0.1",
         "jmespath": "0.16.0",
         "json-pointer": "0.6.2",

package.json

@@ -1,6 +1,6 @@
 {
     "name": "appmixer.slack",
-    "version": "4.1.3",
+    "version": "4.1.4",
     "engine": ">=6.0.0",
     "changelog": {
         "1.0.1": [
@@ -37,6 +37,9 @@
             "(breaking change) Added payload authentication for triggers. Will require setting `signingSecret` in the connector configuration.",
             "Added options to SendChannelMessage and SendPrivateChannelMessage to send messages as a bot user.",
             "Fixed and issue when NewChannelMessageRT trigger did not register messages containing some special UTF characters."
+        ],
+        "4.1.4": [
+            "Improve `botToken` handling in SendChannelMessage and SendPrivateChannelMessage components when using the default configuration."
         ]
     }
 }

src/appmixer/slack/bundle.json

@@ -4,6 +4,8 @@
 const pathModule = require('path');
 const Entities = require('html-entities').AllHtmlEntities;
 const { WebClient } = require('@slack/web-api');
+// TODO: Uncomment when https://github.com/clientIO/appmixer-core/issues/2889 is fixed
+// const slackConnectorVersion = require('./bundle.json').version;
 
 module.exports = {
 
@@ -24,16 +26,40 @@ module.exports = {
         if (asBot === true) {
             // Make sure the bot token is used.
             token = context.config?.botToken;
-            if (!token) {
+            if (!token && !context.config?.usesAuthHub) {
                 throw new context.CancelError('Bot token is required for sending messages as bot. Please provide it in the connector configuration.');
             }
 
             ({ iconUrl, username } = context.messages.message.content);
         }
 
         let entities = new Entities();
+
+        if (context.config?.usesAuthHub && asBot) {
+            // Send into AuthHub route
+            const authHubUrl = process.env.AUTH_HUB_URL + '/plugins/appmixer/slack/auth-hub/send-message';
+            const { data } = await context.httpRequest({
+                url: authHubUrl,
+                method: 'POST',
+                headers: {
+                    Authorization: `Bearer ${process.env.AUTH_HUB_TOKEN}`
+                    // 'x-appmixer-version-slack': slackConnectorVersion
+                },
+                data: {
+                    iconUrl,
+                    username,
+                    channelId,
+                    text: entities.decode(message)
+                }
+            });
+
+            return data;
+        }
+
         const web = new WebClient(token);
 
+        // Auth token or Bot token is set. AuthHub is not used.
+        // Directly send as bot.
         const response = await web.chat.postMessage({
             icon_url: iconUrl,
             username,

src/appmixer/slack/lib.js

@@ -15,4 +15,3 @@ module.exports = {
         return context.sendJson(message, 'newMessage');
     }
 };
-