auth.proto

// Copyright (c) Abstract Machines
// SPDX-License-Identifier: Apache-2.0

syntax = "proto3";

package magistrala;
option go_package = "./magistrala";

// ThingsService is a service that provides things authorization functionalities
// for magistrala services.
service ThingsService {
  // Authorize checks if the thing is authorized to perform
  // the action on the channel.
  rpc Authorize(ThingsAuthzReq) returns (ThingsAuthzRes) {}
}

service TokenService {
  rpc Issue(IssueReq) returns (Token) {}
  rpc Refresh(RefreshReq) returns (Token) {}
}

// AuthService is a service that provides authentication and authorization
// functionalities for magistrala services.
service AuthService {
  rpc Authorize(AuthZReq) returns (AuthZRes) {}
  rpc Authenticate(AuthNReq) returns (AuthNRes) {}
}

// DomainsService is a service that provides access to domains
// functionalities for magistrala services.
service DomainsService {
  rpc DeleteUserFromDomains(DeleteUserReq) returns (DeleteUserRes) {}
}

// If a token is not carrying any information itself, the type
// field can be used to determine how to validate the token.
// Also, different tokens can be encoded in different ways.
message Token {
  string access_token = 1;
  optional string refresh_token = 2;
  string access_type = 3;
}

message AuthNReq {
  string token = 1;
}

message AuthNRes {
  string id = 1; // change "id" to "subject", sub in jwt = user + domain id
  string user_id = 2; // user id
  string domain_id = 3; // domain id
}

message IssueReq {
  string user_id = 1;
  uint32 type = 2;
}

message RefreshReq {
  string refresh_token = 1;
}

message AuthZReq {
  string domain = 1;           // Domain
  string subject_type = 2;     // Thing or User
  string subject_kind = 3;     // ID or Token
  string subject_relation = 4; // Subject relation
  string subject = 5;          // Subject value (id or token, depending on kind)
  string relation = 6;         // Relation to filter
  string permission = 7;       // Action
  string object = 8;           // Object ID
  string object_type = 9;      // Thing, User, Group
}

message AuthZRes {
  bool authorized = 1;
  string id = 2;
}

message DeleteUserRes {
  bool deleted = 1;
}

message DeleteUserReq {
  string id = 1;
}

message ThingsAuthzReq {
  string channel_id = 1;
  string thing_id = 2;
  string thing_key = 3;
  string permission = 4;
}

message ThingsAuthzRes {
  bool authorized = 1;
  string id = 2;
}