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//
// Copyright 2017 The jetcd authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

syntax = "proto3";

import "kv.proto";
import "auth.proto";

package etcdserverpb;

option java_multiple_files = true;
option java_package = "com.coreos.jetcd.api";
option java_outer_classname = "JetcdProto";
option objc_class_prefix = "Jetcd";

service KV {
  // Range gets the keys in the range from the key-value store.
  rpc Range(RangeRequest) returns (RangeResponse) {}

  // Put puts the given key into the key-value store.
  // A put request increments the revision of the key-value store
  // and generates one event in the event history.
  rpc Put(PutRequest) returns (PutResponse) {}

  // DeleteRange deletes the given range from the key-value store.
  // A delete request increments the revision of the key-value store
  // and generates a delete event in the event history for every deleted key.
  rpc DeleteRange(DeleteRangeRequest) returns (DeleteRangeResponse) {}

  // Txn processes multiple requests in a single transaction.
  // A txn request increments the revision of the key-value store
  // and generates events with the same revision for every completed request.
  // It is not allowed to modify the same key several times within one txn.
  rpc Txn(TxnRequest) returns (TxnResponse) {}

  // Compact compacts the event history in the etcd key-value store. The key-value
  // store should be periodically compacted or the event history will continue to grow
  // indefinitely.
  rpc Compact(CompactionRequest) returns (CompactionResponse) {}
}

service Watch {
  // Watch watches for events happening or that have happened. Both input and output
  // are streams; the input stream is for creating and canceling watchers and the output
  // stream sends events. One watch RPC can watch on multiple key ranges, streaming events
  // for several watches at once. The entire event history can be watched starting from the
  // last compaction revision.
  rpc Watch(stream WatchRequest) returns (stream WatchResponse) {}
}

service Lease {
  // LeaseGrant creates a lease which expires if the server does not receive a keepAlive
  // within a given time to live period. All keys attached to the lease will be expired and
  // deleted if the lease expires. Each expired key generates a delete event in the event history.
  rpc LeaseGrant(LeaseGrantRequest) returns (LeaseGrantResponse) {}

  // LeaseRevoke revokes a lease. All keys attached to the lease will expire and be deleted.
  rpc LeaseRevoke(LeaseRevokeRequest) returns (LeaseRevokeResponse) {}

  // LeaseKeepAlive keeps the lease alive by streaming keep alive requests from the client
  // to the server and streaming keep alive responses from the server to the client.
  rpc LeaseKeepAlive(stream LeaseKeepAliveRequest) returns (stream LeaseKeepAliveResponse) {}

  // LeaseTimeToLive retrieves lease information.
  rpc LeaseTimeToLive(LeaseTimeToLiveRequest) returns (LeaseTimeToLiveResponse) {}

  // TODO(xiangli) List all existing Leases?
}

service Cluster {
  // MemberAdd adds a member into the cluster.
  rpc MemberAdd(MemberAddRequest) returns (MemberAddResponse) {}

  // MemberRemove removes an existing member from the cluster.
  rpc MemberRemove(MemberRemoveRequest) returns (MemberRemoveResponse) {}

  // MemberUpdate updates the member configuration.
  rpc MemberUpdate(MemberUpdateRequest) returns (MemberUpdateResponse) {}

  // MemberList lists all the members in the cluster.
  rpc MemberList(MemberListRequest) returns (MemberListResponse) {}
}

service Maintenance {
  // Alarm activates, deactivates, and queries alarms regarding cluster health.
  rpc Alarm(AlarmRequest) returns (AlarmResponse) {}

  // Status gets the status of the member.
  rpc Status(StatusRequest) returns (StatusResponse) {}

  // Defragment defragments a member's backend database to recover storage space.
  rpc Defragment(DefragmentRequest) returns (DefragmentResponse) {}

  // Hash returns the hash of the local KV state for consistency checking purpose.
  // This is designed for testing; do not use this in production when there
  // are ongoing transactions.
  rpc Hash(HashRequest) returns (HashResponse) {}

  // Snapshot sends a snapshot of the entire backend from a member over a stream to a client.
  rpc Snapshot(SnapshotRequest) returns (stream SnapshotResponse) {}
}

service Auth {
  // AuthEnable enables authentication.
  rpc AuthEnable(AuthEnableRequest) returns (AuthEnableResponse) {}

  // AuthDisable disables authentication.
  rpc AuthDisable(AuthDisableRequest) returns (AuthDisableResponse) {}

  // Authenticate processes an authenticate request.
  rpc Authenticate(AuthenticateRequest) returns (AuthenticateResponse) {}

  // UserAdd adds a new user.
  rpc UserAdd(AuthUserAddRequest) returns (AuthUserAddResponse) {}

  // UserGet gets detailed user information.
  rpc UserGet(AuthUserGetRequest) returns (AuthUserGetResponse) {}

  // UserList gets a list of all users.
  rpc UserList(AuthUserListRequest) returns (AuthUserListResponse) {}

  // UserDelete deletes a specified user.
  rpc UserDelete(AuthUserDeleteRequest) returns (AuthUserDeleteResponse) {}

  // UserChangePassword changes the password of a specified user.
  rpc UserChangePassword(AuthUserChangePasswordRequest) returns (AuthUserChangePasswordResponse) {}

  // UserGrant grants a role to a specified user.
  rpc UserGrantRole(AuthUserGrantRoleRequest) returns (AuthUserGrantRoleResponse) {}

  // UserRevokeRole revokes a role of specified user.
  rpc UserRevokeRole(AuthUserRevokeRoleRequest) returns (AuthUserRevokeRoleResponse) {}

  // RoleAdd adds a new role.
  rpc RoleAdd(AuthRoleAddRequest) returns (AuthRoleAddResponse) {}

  // RoleGet gets detailed role information.
  rpc RoleGet(AuthRoleGetRequest) returns (AuthRoleGetResponse) {}

  // RoleList gets lists of all roles.
  rpc RoleList(AuthRoleListRequest) returns (AuthRoleListResponse) {}

  // RoleDelete deletes a specified role.
  rpc RoleDelete(AuthRoleDeleteRequest) returns (AuthRoleDeleteResponse) {}

  // RoleGrantPermission grants a permission of a specified key or range to a specified role.
  rpc RoleGrantPermission(AuthRoleGrantPermissionRequest) returns (AuthRoleGrantPermissionResponse) {}

  // RoleRevokePermission revokes a key or range permission of a specified role.
  rpc RoleRevokePermission(AuthRoleRevokePermissionRequest) returns (AuthRoleRevokePermissionResponse) {}
}

message ResponseHeader {
  // cluster_id is the ID of the cluster which sent the response.
  uint64 cluster_id = 1;
  // member_id is the ID of the member which sent the response.
  uint64 member_id = 2;
  // revision is the key-value store revision when the request was applied.
  int64 revision = 3;
  // raft_term is the raft term when the request was applied.
  uint64 raft_term = 4;
}

message RangeRequest {
  enum SortOrder {
    NONE = 0; // default, no sorting
    ASCEND = 1; // lowest target value first
    DESCEND = 2; // highest target value first
  }
  enum SortTarget {
    KEY = 0;
    VERSION = 1;
    CREATE = 2;
    MOD = 3;
    VALUE = 4;
  }

  // key is the first key for the range. If range_end is not given, the request only looks up key.
  bytes key = 1;
  // range_end is the upper bound on the requested range [key, range_end).
  // If range_end is '\0', the range is all keys >= key.
  // If range_end is key plus one (e.g., "aa"+1 == "ab", "a\xff"+1 == "b"),
  // then the range request gets all keys prefixed with key.
  // If both key and range_end are '\0', then the range request returns all keys.
  bytes range_end = 2;
  // limit is a limit on the number of keys returned for the request. When limit is set to 0,
  // it is treated as no limit.
  int64 limit = 3;
  // revision is the point-in-time of the key-value store to use for the range.
  // If revision is less or equal to zero, the range is over the newest key-value store.
  // If the revision has been compacted, ErrCompacted is returned as a response.
  int64 revision = 4;

  // sort_order is the order for returned sorted results.
  SortOrder sort_order = 5;

  // sort_target is the key-value field to use for sorting.
  SortTarget sort_target = 6;

  // serializable sets the range request to use serializable member-local reads.
  // Range requests are linearizable by default; linearizable requests have higher
  // latency and lower throughput than serializable requests but reflect the current
  // consensus of the cluster. For better performance, in exchange for possible stale reads,
  // a serializable range request is served locally without needing to reach consensus
  // with other nodes in the cluster.
  bool serializable = 7;

  // keys_only when set returns only the keys and not the values.
  bool keys_only = 8;

  // count_only when set returns only the count of the keys in the range.
  bool count_only = 9;

  // min_mod_revision is the lower bound for returned key mod revisions; all keys with
  // lesser mod revisions will be filtered away.
  int64 min_mod_revision = 10;

  // max_mod_revision is the upper bound for returned key mod revisions; all keys with
  // greater mod revisions will be filtered away.
  int64 max_mod_revision = 11;

  // min_create_revision is the lower bound for returned key create revisions; all keys with
  // lesser create trevisions will be filtered away.
  int64 min_create_revision = 12;

  // max_create_revision is the upper bound for returned key create revisions; all keys with
  // greater create revisions will be filtered away.
  int64 max_create_revision = 13;
}

message RangeResponse {
  ResponseHeader header = 1;
  // kvs is the list of key-value pairs matched by the range request.
  // kvs is empty when count is requested.
  repeated mvccpb.KeyValue kvs = 2;
  // more indicates if there are more keys to return in the requested range.
  bool more = 3;
  // count is set to the number of keys within the range when requested.
  int64 count = 4;
}

message PutRequest {
  // key is the key, in bytes, to put into the key-value store.
  bytes key = 1;
  // value is the value, in bytes, to associate with the key in the key-value store.
  bytes value = 2;
  // lease is the lease ID to associate with the key in the key-value store. A lease
  // value of 0 indicates no lease.
  int64 lease = 3;

  // If prev_kv is set, etcd gets the previous key-value pair before changing it.
  // The previous key-value pair will be returned in the put response.
  bool prev_kv = 4;

  // If ignore_value is set, etcd updates the key using its current value.
  // Returns an error if the key does not exist.
  bool ignore_value = 5;

  // If ignore_lease is set, etcd updates the key using its current lease.
  // Returns an error if the key does not exist.
  bool ignore_lease = 6;
}

message PutResponse {
  ResponseHeader header = 1;
  // if prev_kv is set in the request, the previous key-value pair will be returned.
  mvccpb.KeyValue prev_kv = 2;
}

message DeleteRangeRequest {
  // key is the first key to delete in the range.
  bytes key = 1;
  // range_end is the key following the last key to delete for the range [key, range_end).
  // If range_end is not given, the range is defined to contain only the key argument.
  // If range_end is one bit larger than the given key, then the range is all the keys
  // with the prefix (the given key).
  // If range_end is '\0', the range is all keys greater than or equal to the key argument.
  bytes range_end = 2;

  // If prev_kv is set, etcd gets the previous key-value pairs before deleting it.
  // The previous key-value pairs will be returned in the delete response.
  bool prev_kv = 3;
}

message DeleteRangeResponse {
  ResponseHeader header = 1;
  // deleted is the number of keys deleted by the delete range request.
  int64 deleted = 2;
  // if prev_kv is set in the request, the previous key-value pairs will be returned.
  repeated mvccpb.KeyValue prev_kvs = 3;
}

message RequestOp {
  // request is a union of request types accepted by a transaction.
  oneof request {
    RangeRequest request_range = 1;
    PutRequest request_put = 2;
    DeleteRangeRequest request_delete_range = 3;
    TxnRequest request_txn = 4;
  }
}

message ResponseOp {
  // response is a union of response types returned by a transaction.
  oneof response {
    RangeResponse response_range = 1;
    PutResponse response_put = 2;
    DeleteRangeResponse response_delete_range = 3;
    TxnResponse response_txn = 4;
  }
}

message Compare {
  enum CompareResult {
    EQUAL = 0;
    GREATER = 1;
    LESS = 2;
    NOT_EQUAL = 3;
  }
  enum CompareTarget {
    VERSION = 0;
    CREATE = 1;
    MOD = 2;
    VALUE= 3;
  }
  // result is logical comparison operation for this comparison.
  CompareResult result = 1;
  // target is the key-value field to inspect for the comparison.
  CompareTarget target = 2;
  // key is the subject key for the comparison operation.
  bytes key = 3;
  oneof target_union {
    // version is the version of the given key
    int64 version = 4;
    // create_revision is the creation revision of the given key
    int64 create_revision = 5;
    // mod_revision is the last modified revision of the given key.
    int64 mod_revision = 6;
    // value is the value of the given key, in bytes.
    bytes value = 7;
  }
  // range_end compares the given target to all keys in the range [key, range_end).
  // See RangeRequest for more details on key ranges.
  bytes range_end = 8;
  // TODO: fill out with most of the rest of RangeRequest fields when needed.
}

// From google paxosdb paper:
// Our implementation hinges around a powerful primitive which we call MultiOp. All other database
// operations except for iteration are implemented as a single call to MultiOp. A MultiOp is applied atomically
// and consists of three components:
// 1. A list of tests called guard. Each test in guard checks a single entry in the database. It may check
// for the absence or presence of a value, or compare with a given value. Two different tests in the guard
// may apply to the same or different entries in the database. All tests in the guard are applied and
// MultiOp returns the results. If all tests are true, MultiOp executes t op (see item 2 below), otherwise
// it executes f op (see item 3 below).
// 2. A list of database operations called t op. Each operation in the list is either an insert, delete, or
// lookup operation, and applies to a single database entry. Two different operations in the list may apply
// to the same or different entries in the database. These operations are executed
// if guard evaluates to
// true.
// 3. A list of database operations called f op. Like t op, but executed if guard evaluates to false.
message TxnRequest {
  // compare is a list of predicates representing a conjunction of terms.
  // If the comparisons succeed, then the success requests will be processed in order,
  // and the response will contain their respective responses in order.
  // If the comparisons fail, then the failure requests will be processed in order,
  // and the response will contain their respective responses in order.
  repeated Compare compare = 1;
  // success is a list of requests which will be applied when compare evaluates to true.
  repeated RequestOp success = 2;
  // failure is a list of requests which will be applied when compare evaluates to false.
  repeated RequestOp failure = 3;
}

message TxnResponse {
  ResponseHeader header = 1;
  // succeeded is set to true if the compare evaluated to true or false otherwise.
  bool succeeded = 2;
  // responses is a list of responses corresponding to the results from applying
  // success if succeeded is true or failure if succeeded is false.
  repeated ResponseOp responses = 3;
}

// CompactionRequest compacts the key-value store up to a given revision. All superseded keys
// with a revision less than the compaction revision will be removed.
message CompactionRequest {
  // revision is the key-value store revision for the compaction operation.
  int64 revision = 1;
  // physical is set so the RPC will wait until the compaction is physically
  // applied to the local database such that compacted entries are totally
  // removed from the backend database.
  bool physical = 2;
}

message CompactionResponse {
  ResponseHeader header = 1;
}

message HashRequest {
}

message HashResponse {
  ResponseHeader header = 1;
  // hash is the hash value computed from the responding member's key-value store.
  uint32 hash = 2;
}

message SnapshotRequest {
}

message SnapshotResponse {
  // header has the current key-value store information. The first header in the snapshot
  // stream indicates the point in time of the snapshot.
  ResponseHeader header = 1;

  // remaining_bytes is the number of blob bytes to be sent after this message
  uint64 remaining_bytes = 2;

  // blob contains the next chunk of the snapshot in the snapshot stream.
  bytes blob = 3;
}

message WatchRequest {
  // request_union is a request to either create a new watcher or cancel an existing watcher.
  oneof request_union {
    WatchCreateRequest create_request = 1;
    WatchCancelRequest cancel_request = 2;
  }
}

message WatchCreateRequest {
  // key is the key to register for watching.
  bytes key = 1;
  // range_end is the end of the range [key, range_end) to watch. If range_end is not given,
  // only the key argument is watched. If range_end is equal to '\0', all keys greater than
  // or equal to the key argument are watched.
  // If the range_end is one bit larger than the given key,
  // then all keys with the prefix (the given key) will be watched.
  bytes range_end = 2;
  // start_revision is an optional revision to watch from (inclusive). No start_revision is "now".
  int64 start_revision = 3;
  // progress_notify is set so that the etcd server will periodically send a WatchResponse with
  // no events to the new watcher if there are no recent events. It is useful when clients
  // wish to recover a disconnected watcher starting from a recent known revision.
  // The etcd server may decide how often it will send notifications based on current load.
  bool progress_notify = 4;

  enum FilterType {
    // filter out put event.
    NOPUT = 0;
    // filter out delete event.
    NODELETE = 1;
  }
  // filters filter the events at server side before it sends back to the watcher.
  repeated FilterType filters = 5;

  // If prev_kv is set, created watcher gets the previous KV before the event happens.
  // If the previous KV is already compacted, nothing will be returned.
  bool prev_kv = 6;
}

message WatchCancelRequest {
  // watch_id is the watcher id to cancel so that no more events are transmitted.
  int64 watch_id = 1;
}

message WatchResponse {
  ResponseHeader header = 1;
  // watch_id is the ID of the watcher that corresponds to the response.
  int64 watch_id = 2;
  // created is set to true if the response is for a create watch request.
  // The client should record the watch_id and expect to receive events for
  // the created watcher from the same stream.
  // All events sent to the created watcher will attach with the same watch_id.
  bool created = 3;
  // canceled is set to true if the response is for a cancel watch request.
  // No further events will be sent to the canceled watcher.
  bool canceled = 4;
  // compact_revision is set to the minimum index if a watcher tries to watch
  // at a compacted index.
  //
  // This happens when creating a watcher at a compacted revision or the watcher cannot
  // catch up with the progress of the key-value store.
  //
  // The client should treat the watcher as canceled and should not try to create any
  // watcher with the same start_revision again.
  int64 compact_revision  = 5;

  // cancel_reason indicates the reason for canceling the watcher.
  string cancel_reason = 6;

  repeated mvccpb.Event events = 11;
}

message LeaseGrantRequest {
  // TTL is the advisory time-to-live in seconds.
  int64 TTL = 1;
  // ID is the requested ID for the lease. If ID is set to 0, the lessor chooses an ID.
  int64 ID = 2;
}

message LeaseGrantResponse {
  ResponseHeader header = 1;
  // ID is the lease ID for the granted lease.
  int64 ID = 2;
  // TTL is the server chosen lease time-to-live in seconds.
  int64 TTL = 3;
  string error = 4;
}

message LeaseRevokeRequest {
  // ID is the lease ID to revoke. When the ID is revoked, all associated keys will be deleted.
  int64 ID = 1;
}

message LeaseRevokeResponse {
  ResponseHeader header = 1;
}

message LeaseKeepAliveRequest {
  // ID is the lease ID for the lease to keep alive.
  int64 ID = 1;
}

message LeaseKeepAliveResponse {
  ResponseHeader header = 1;
  // ID is the lease ID from the keep alive request.
  int64 ID = 2;
  // TTL is the new time-to-live for the lease.
  int64 TTL = 3;
}

message LeaseTimeToLiveRequest {
  // ID is the lease ID for the lease.
  int64 ID = 1;
  // keys is true to query all the keys attached to this lease.
  bool keys = 2;
}

message LeaseTimeToLiveResponse {
  ResponseHeader header = 1;
  // ID is the lease ID from the keep alive request.
  int64 ID = 2;
  // TTL is the remaining TTL in seconds for the lease; the lease will expire in under TTL+1 seconds.
  int64 TTL = 3;
  // GrantedTTL is the initial granted time in seconds upon lease creation/renewal.
  int64 grantedTTL = 4;
  // Keys is the list of keys attached to this lease.
  repeated bytes keys = 5;
}

message Member {
  // ID is the member ID for this member.
  uint64 ID = 1;
  // name is the human-readable name of the member. If the member is not started, the name will be an empty string.
  string name = 2;
  // peerURLs is the list of URLs the member exposes to the cluster for communication.
  repeated string peerURLs = 3;
  // clientURLs is the list of URLs the member exposes to clients for communication. If the member is not started, clientURLs will be empty.
  repeated string clientURLs = 4;
}

message MemberAddRequest {
  // peerURLs is the list of URLs the added member will use to communicate with the cluster.
  repeated string peerURLs = 1;
}

message MemberAddResponse {
  ResponseHeader header = 1;
  // member is the member information for the added member.
  Member member = 2;
  // members is a list of all members after adding the new member.
  repeated Member members = 3;
}

message MemberRemoveRequest {
  // ID is the member ID of the member to remove.
  uint64 ID = 1;
}

message MemberRemoveResponse {
  ResponseHeader header = 1;
  // members is a list of all members after removing the member.
  repeated Member members = 2;
}

message MemberUpdateRequest {
  // ID is the member ID of the member to update.
  uint64 ID = 1;
  // peerURLs is the new list of URLs the member will use to communicate with the cluster.
  repeated string peerURLs = 2;
}

message MemberUpdateResponse{
  ResponseHeader header = 1;
  // members is a list of all members after updating the member.
  repeated Member members = 2;
}

message MemberListRequest {
}

message MemberListResponse {
  ResponseHeader header = 1;
  // members is a list of all members associated with the cluster.
  repeated Member members = 2;
}

message DefragmentRequest {
}

message DefragmentResponse {
  ResponseHeader header = 1;
}

enum AlarmType {
  NONE = 0; // default, used to query if any alarm is active
  NOSPACE = 1; // space quota is exhausted
}

message AlarmRequest {
  enum AlarmAction {
    GET = 0;
    ACTIVATE = 1;
    DEACTIVATE = 2;
  }
  // action is the kind of alarm request to issue. The action
  // may GET alarm statuses, ACTIVATE an alarm, or DEACTIVATE a
  // raised alarm.
  AlarmAction action = 1;
  // memberID is the ID of the member associated with the alarm. If memberID is 0, the
  // alarm request covers all members.
  uint64 memberID = 2;
  // alarm is the type of alarm to consider for this request.
  AlarmType alarm = 3;
}

message AlarmMember {
  // memberID is the ID of the member associated with the raised alarm.
  uint64 memberID = 1;
  // alarm is the type of alarm which has been raised.
  AlarmType alarm = 2;
}

message AlarmResponse {
  ResponseHeader header = 1;
  // alarms is a list of alarms associated with the alarm request.
  repeated AlarmMember alarms = 2;
}

message StatusRequest {
}

message StatusResponse {
  ResponseHeader header = 1;
  // version is the cluster protocol version used by the responding member.
  string version = 2;
  // dbSize is the size of the backend database, in bytes, of the responding member.
  int64 dbSize = 3;
  // leader is the member ID which the responding member believes is the current leader.
  uint64 leader = 4;
  // raftIndex is the current raft index of the responding member.
  uint64 raftIndex = 5;
  // raftTerm is the current raft term of the responding member.
  uint64 raftTerm = 6;
}

message AuthEnableRequest {
}

message AuthDisableRequest {
}

message AuthenticateRequest {
  string name = 1;
  string password = 2;
}

message AuthUserAddRequest {
  string name = 1;
  string password = 2;
}

message AuthUserGetRequest {
  string name = 1;
}

message AuthUserDeleteRequest {
  // name is the name of the user to delete.
  string name = 1;
}

message AuthUserChangePasswordRequest {
  // name is the name of the user whose password is being changed.
  string name = 1;
  // password is the new password for the user.
  string password = 2;
}

message AuthUserGrantRoleRequest {
  // user is the name of the user which should be granted a given role.
  string user = 1;
  // role is the name of the role to grant to the user.
  string role = 2;
}

message AuthUserRevokeRoleRequest {
  string name = 1;
  string role = 2;
}

message AuthRoleAddRequest {
  // name is the name of the role to add to the authentication system.
  string name = 1;
}

message AuthRoleGetRequest {
  string role = 1;
}

message AuthUserListRequest {
}

message AuthRoleListRequest {
}

message AuthRoleDeleteRequest {
  string role = 1;
}

message AuthRoleGrantPermissionRequest {
  // name is the name of the role which will be granted the permission.
  string name = 1;
  // perm is the permission to grant to the role.
  authpb.Permission perm = 2;
}

message AuthRoleRevokePermissionRequest {
  string role = 1;
  string key = 2;
  string range_end = 3;
}

message AuthEnableResponse {
  ResponseHeader header = 1;
}

message AuthDisableResponse {
  ResponseHeader header = 1;
}

message AuthenticateResponse {
  ResponseHeader header = 1;
  // token is an authorized token that can be used in succeeding RPCs
  string token = 2;
}

message AuthUserAddResponse {
  ResponseHeader header = 1;
}

message AuthUserGetResponse {
  ResponseHeader header = 1;

  repeated string roles = 2;
}

message AuthUserDeleteResponse {
  ResponseHeader header = 1;
}

message AuthUserChangePasswordResponse {
  ResponseHeader header = 1;
}

message AuthUserGrantRoleResponse {
  ResponseHeader header = 1;
}

message AuthUserRevokeRoleResponse {
  ResponseHeader header = 1;
}

message AuthRoleAddResponse {
  ResponseHeader header = 1;
}

message AuthRoleGetResponse {
  ResponseHeader header = 1;

  repeated authpb.Permission perm = 2;
}

message AuthRoleListResponse {
  ResponseHeader header = 1;

  repeated string roles = 2;
}

message AuthUserListResponse {
  ResponseHeader header = 1;

  repeated string users = 2;
}

message AuthRoleDeleteResponse {
  ResponseHeader header = 1;
}

message AuthRoleGrantPermissionResponse {
  ResponseHeader header = 1;
}

message AuthRoleRevokePermissionResponse {
  ResponseHeader header = 1;
}




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