fix(security): transcript access control (closes #555)

src/autocomplete/ticket.js

@@ -18,12 +18,13 @@ module.exports = class TicketCompleter extends Autocompleter {
 	}
 
 	async getOptions(value, {
-		guildId,
+		interaction,
 		open,
 		userId,
 	}) {
 		/** @type {import("client")} */
 		const client = this.client;
+		const guildId = interaction.guild.id;
 		const cacheKey = [guildId, userId, open].join('/');
 
 		let tickets = await this.cache.get(cacheKey);
@@ -34,21 +35,16 @@ module.exports = class TicketCompleter extends Autocompleter {
 				where: { id: guildId },
 			});
 			tickets = await client.prisma.ticket.findMany({
-				include: {
+				include: { category: true },
-					category: {
-						select: {
-							emoji: true,
-							name: true,
-						},
-					},
-				},
 				where: {
 					createdById: userId,
 					guildId,
 					open,
 				},
 			});
-			tickets = tickets.map(ticket => {
+			tickets = tickets
+				.filter(ticket => client.commands.commands.slash.get('transcript').shouldAllowAccess(interaction, ticket))
+				.map(ticket => {
 					const date = new Date(ticket.createdAt).toLocaleString([locale, 'en-GB'], { dateStyle: 'short' });
 					const topic = ticket.topic ? '- ' + decrypt(ticket.topic).replace(/\n/g, ' ').substring(0, 50) : '';
 					const category = emoji.hasEmoji(ticket.category.emoji) ? emoji.get(ticket.category.emoji) + ' ' + ticket.category.name : ticket.category.name;
@@ -77,7 +73,7 @@ module.exports = class TicketCompleter extends Autocompleter {
 		const userId = otherMember || interaction.user.id;
 		await interaction.respond(
 			await this.getOptions(value, {
-				guildId: interaction.guild.id,
+				interaction,
 				open: ['add', 'close', 'force-close', 'remove'].includes(command.name),  // false for `new`, `transcript` etc
 				userId,
 			}),

src/commands/slash/tickets.js

@@ -1,5 +1,8 @@
 const { SlashCommand } = require('@eartharoid/dbf');
-const { ApplicationCommandOptionType } = require('discord.js');
+const {
+	ApplicationCommandOptionType,
+	PermissionsBitField,
+} = require('discord.js');
 const { isStaff } = require('../../lib/users');
 const ExtendedEmbedBuilder = require('../../lib/embed');
 const Cryptr = require('cryptr');
@@ -60,12 +63,45 @@ module.exports = class TicketsSlashCommand extends SlashCommand {
 		}
 
 		const fields = [];
+		let base_filter;
+
+		if (member.id === interaction.member.id) {
+			base_filter = {
+				createdById: member.id,
+				guildId: interaction.guild.id,
+			};
+		} else {
+			const { categories } = await client.prisma.guild.findUnique({
+				select: {
+					categories: {
+						select: {
+							id: true,
+							staffRoles: true,
+						},
+					},
+				},
+				where: { id: interaction.guild.id },
+			});
+			const allow_category_ids = (
+				(
+					client.supers.includes(interaction.member.id) ||
+					interaction.member.permissions.has(PermissionsBitField.Flags.ManageGuild)
+				)
+					? categories
+					: categories.filter(c => c.staffRoles.some(id => interaction.member.roles.cache.has(id)))
+			)
+				.map(c => c.id);
+			base_filter = {
+				categoryId: { in: allow_category_ids },
+				createdById: member.id,
+				guildId: interaction.guild.id,
+			};
+		}
 
 		const open = await client.prisma.ticket.findMany({
 			include: { category: true },
 			where: {
-				createdById: member.id,
+				...base_filter,
-				guildId: interaction.guild.id,
 				open: true,
 			},
 		});
@@ -75,8 +111,7 @@ module.exports = class TicketsSlashCommand extends SlashCommand {
 			orderBy: { createdAt: 'desc' },
 			take: 10, // max 10 rows
 			where: {
-				createdById: member.id,
+				...base_filter,
-				guildId: interaction.guild.id,
 				open: false,
 			},
 		});
@@ -84,8 +119,8 @@ module.exports = class TicketsSlashCommand extends SlashCommand {
 		if (open.length >= 1) {
 			fields.push({
 				name: getMessage('commands.slash.tickets.response.fields.open.name'),
-				value: open.map(ticket =>{
+				value: open.map(ticket => {
-					const topic = ticket.topic ? `- \`${decrypt(ticket.topic).replace(/\n/g, ' ').slice(0, 30) }\`` : '';
+					const topic = ticket.topic ? `- \`${decrypt(ticket.topic).replace(/\n/g, ' ').slice(0, 30)}\`` : '';
 					return `> <#${ticket.id}> ${topic}`;
 				}).join('\n'),
 			});

src/commands/slash/transcript.js

@@ -1,12 +1,14 @@
 const { SlashCommand } = require('@eartharoid/dbf');
-const { ApplicationCommandOptionType } = require('discord.js');
+const {
+	ApplicationCommandOptionType,
+	PermissionsBitField,
+} = require('discord.js');
 const fs = require('fs');
 const { join } = require('path');
 const Mustache = require('mustache');
 const { AttachmentBuilder } = require('discord.js');
 const Cryptr = require('cryptr');
 const { decrypt } = new Cryptr(process.env.ENCRYPTION_KEY);
-const { isStaff } = require('../../lib/users');
 const ExtendedEmbedBuilder = require('../../lib/embed');
 
 module.exports = class TranscriptSlashCommand extends SlashCommand {
@@ -46,6 +48,15 @@ module.exports = class TranscriptSlashCommand extends SlashCommand {
 		);
 	}
 
+	shouldAllowAccess(interaction, ticket)  {
+		if (interaction.guild.id !== ticket.guildId) return false;
+		if (ticket.createdById === interaction.member.id) return true;
+		if (interaction.client.supers.includes(interaction.member.id)) return true;
+		if (interaction.member.permissions.has(PermissionsBitField.Flags.ManageGuild)) return true;
+		if (interaction.member.roles.cache.filter(role => ticket.category.staffRoles.includes(role.id)).size > 0) return true;
+		return false;
+	}
+
 	async fillTemplate(ticket) {
 		/** @type {import("client")} */
 		const client = this.client;
@@ -146,10 +157,7 @@ module.exports = class TranscriptSlashCommand extends SlashCommand {
 
 		if (!ticket) throw new Error(`Ticket ${ticketId} does not exist`);
 
-		if (
+		if (!this.shouldAllowAccess(interaction, ticket)) {
-			ticket.createdById !== interaction.member.id &&
-			!(await isStaff(interaction.guild, interaction.member.id))
-		) {
 			const settings = await client.prisma.guild.findUnique({ where: { id: interaction.guild.id } });
 			const getMessage = client.i18n.getLocale(settings.locale);
 			return await interaction.editReply({