feat(writeapi): added group joining and deletion

src/controllers/write/groups.js

@@ -1,7 +1,9 @@
 'use strict';
 
+const user = require('../../user');
 const groups = require('../../groups');
 const events = require('../../events');
+const meta = require('../../meta');
 
 const helpers = require('../helpers');
 
@@ -26,6 +28,66 @@ Groups.create = async (req, res) => {
 	});
 };
 
+Groups.delete = async (req, res) => {
+	const group = await groups.getByGroupslug(req.params.slug, {
+		uid: req.user.uid,
+	});
+
+	if (groups.ephemeralGroups.includes(group.slug)) {
+		throw new Error('[[error:not-allowed]]');
+	}
+
+	if (group.system || (!group.isOwner && !res.locals.privileges.isAdmin && !res.locals.privileges.isGmod)) {
+		throw new Error('[[error:no-privileges]]');
+	}
+
+	await groups.destroy(group.name);
+	helpers.formatApiResponse(200, res);
+	logGroupEvent(req, 'group-delete', {
+		groupName: group.name,
+	});
+};
+
+Groups.join = async (req, res) => {
+	const group = await groups.getByGroupslug(req.params.slug, {
+		uid: req.params.uid,
+	});
+	const [isCallerOwner, userExists] = await Promise.all([
+		groups.ownership.isOwner(req.user.uid, group.name),
+		user.exists(req.user.uid),
+	]);
+
+	if (group.isMember) {
+		// No change
+		return helpers.formatApiResponse(200, res);
+	} else if (!userExists) {
+		throw new Error('[[error:invalid-uid]]');
+	}
+
+	// console.log(res.locals.privileges);
+	// return res.sendStatus(200);
+
+	if (!res.locals.privileges.isAdmin) {
+		// Admin and privilege groups unjoinable client-side
+		if (group.name === 'administrators' || groups.isPrivilegeGroup(group.name)) {
+			throw new Error('[[error:not-allowed]]');
+		}
+
+		if (!isCallerOwner && parseInt(meta.config.allowPrivateGroups, 10) !== 0 && group.private) {
+			await groups.requestMembership(group.name, req.params.uid);
+		} else {
+			await groups.join(group.name, req.params.uid);
+		}
+	} else {
+		await groups.join(group.name, req.params.uid);
+	}
+
+	helpers.formatApiResponse(200, res);
+	logGroupEvent(req, 'group-join', {
+		groupName: group.name,
+	});
+};
+
 function logGroupEvent(req, event, additional) {
 	events.log({
 		type: event,