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fix(api): close auth, billing and authorization bypasses (#2065)

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Hampus authored and GitHub committed 2026-08-29 02:59:38 +02:00
1 parent 9a54bbba2d
commit 5474be3efa
23 files changed
+217 -78
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fluxer_api/src/api/channel/services/channel_data/ChannelOperationsService.ts
+25 -6
View File
@@ -186,12 +186,7 @@ export class ChannelOperationsService {
let permissionOverwrites = channel.permissionOverwrites;
if (data.permission_overwrites !== undefined) {
const guildId = createGuildID(BigInt(guild.id));
const canManageRoles = await this.gatewayService.checkPermission({
guildId,
userId,
permission: Permissions.MANAGE_ROLES,
});
if (!canManageRoles) throw new MissingPermissionsError();
await checkPermission(Permissions.MANAGE_ROLES);
const isOwner = guild.owner_id === userId.toString();
const channelPermissions = await this.gatewayService.getUserPermissions({
guildId,
@@ -205,6 +200,17 @@ export class ChannelOperationsService {
throw new MissingPermissionsError();
}
}
const nextDeny = new Map<RoleID | UserID, bigint>();
for (const overwrite of data.permission_overwrites ?? []) {
const targetKey = overwrite.type === 0 ? createRoleID(overwrite.id) : createUserID(overwrite.id);
nextDeny.set(targetKey, (overwrite.deny ? BigInt(overwrite.deny) : 0n) & ALL_PERMISSIONS);
}
for (const [targetId, existing] of previousPermissionOverwrites ?? []) {
const removedDeny = existing.deny & ~(nextDeny.get(targetId) ?? 0n);
if ((removedDeny & ~channelPermissions) !== 0n) {
throw new MissingPermissionsError();
}
}
}
permissionOverwrites = new Map();
for (const overwrite of data.permission_overwrites ?? []) {
@@ -590,6 +596,7 @@ export class ChannelOperationsService {
const canManageRoles = await this.gatewayService.checkPermission({
guildId: channel.guildId,
userId: params.userId,
channelId: channel.id,
permission: Permissions.MANAGE_ROLES,
});
if (!canManageRoles) throw new MissingPermissionsError();
@@ -615,6 +622,8 @@ export class ChannelOperationsService {
const sanitizedDeny = protectedBits.deny;
const hasAdministrator = (userPermissions & Permissions.ADMINISTRATOR) !== 0n;
if (!hasAdministrator && (sanitizedAllow & ~userPermissions) !== 0n) throw new MissingPermissionsError();
const removedDeny = (existing?.deny ?? 0n) & ~sanitizedDeny;
if (!hasAdministrator && (removedDeny & ~userPermissions) !== 0n) throw new MissingPermissionsError();
const previousPermissionOverwrites = channel.permissionOverwrites;
const overwrites = new Map(channel.permissionOverwrites ?? []);
overwrites.set(
@@ -697,6 +706,7 @@ export class ChannelOperationsService {
const canManageRoles = await this.gatewayService.checkPermission({
guildId: channel.guildId,
userId: params.userId,
channelId: channel.id,
permission: Permissions.MANAGE_ROLES,
});
if (!canManageRoles) throw new MissingPermissionsError();
@@ -705,6 +715,15 @@ export class ChannelOperationsService {
const removedRole = overwrites.get(createRoleID(params.overwriteId));
const removedUser = overwrites.get(createUserID(params.overwriteId));
const removed = removedRole ?? removedUser;
if (removed) {
const userPermissions = await this.gatewayService.getUserPermissions({
guildId: channel.guildId,
userId: params.userId,
channelId: channel.id,
});
const hasAdministrator = (userPermissions & Permissions.ADMINISTRATOR) !== 0n;
if (!hasAdministrator && (removed.deny & ~userPermissions) !== 0n) throw new MissingPermissionsError();
}
overwrites.delete(createRoleID(params.overwriteId));
overwrites.delete(createUserID(params.overwriteId));
const updated = await this.channelRepository.channelData.upsert({