dendrite/keyserver/storage/interface.go

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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// 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.
package storage
import (
"context"
"encoding/json"
"github.com/matrix-org/dendrite/keyserver/api"
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"github.com/matrix-org/dendrite/keyserver/types"
"github.com/matrix-org/gomatrixserverlib"
)
type Database interface {
// ExistingOneTimeKeys returns a map of keyIDWithAlgorithm to key JSON for the given parameters. If no keys exist with this combination
// of user/device/key/algorithm 4-uple then it is omitted from the map. Returns an error when failing to communicate with the database.
ExistingOneTimeKeys(ctx context.Context, userID, deviceID string, keyIDsWithAlgorithms []string) (map[string]json.RawMessage, error)
// StoreOneTimeKeys persists the given one-time keys.
StoreOneTimeKeys(ctx context.Context, keys api.OneTimeKeys) (*api.OneTimeKeysCount, error)
// OneTimeKeysCount returns a count of all OTKs for this device.
OneTimeKeysCount(ctx context.Context, userID, deviceID string) (*api.OneTimeKeysCount, error)
// DeviceKeysJSON populates the KeyJSON for the given keys. If any proided `keys` have a `KeyJSON` or `StreamID` already then it will be replaced.
DeviceKeysJSON(ctx context.Context, keys []api.DeviceMessage) error
// StoreLocalDeviceKeys persists the given keys. Keys with the same user ID and device ID will be replaced. An empty KeyJSON removes the key
// for this (user, device).
// The `StreamID` for each message is set on successful insertion. In the event the key already exists, the existing StreamID is set.
// Returns an error if there was a problem storing the keys.
StoreLocalDeviceKeys(ctx context.Context, keys []api.DeviceMessage) error
// StoreRemoteDeviceKeys persists the given keys. Keys with the same user ID and device ID will be replaced. An empty KeyJSON removes the key
// for this (user, device). Does not modify the stream ID for keys. User IDs in `clearUserIDs` will have all their device keys deleted prior
// to insertion - use this when you have a complete snapshot of a user's keys in order to track device deletions correctly.
StoreRemoteDeviceKeys(ctx context.Context, keys []api.DeviceMessage, clearUserIDs []string) error
// PrevIDsExists returns true if all prev IDs exist for this user.
PrevIDsExists(ctx context.Context, userID string, prevIDs []int) (bool, error)
// DeviceKeysForUser returns the device keys for the device IDs given. If the length of deviceIDs is 0, all devices are selected.
// If there are some missing keys, they are omitted from the returned slice. There is no ordering on the returned slice.
DeviceKeysForUser(ctx context.Context, userID string, deviceIDs []string) ([]api.DeviceMessage, error)
// DeleteDeviceKeys removes the device keys for a given user/device, and any accompanying
// cross-signing signatures relating to that device.
DeleteDeviceKeys(ctx context.Context, userID string, deviceIDs []gomatrixserverlib.KeyID) error
// ClaimKeys based on the 3-uple of user_id, device_id and algorithm name. Returns the keys claimed. Returns no error if a key
// cannot be claimed or if none exist for this (user, device, algorithm), instead it is omitted from the returned slice.
ClaimKeys(ctx context.Context, userToDeviceToAlgorithm map[string]map[string]string) ([]api.OneTimeKeys, error)
// StoreKeyChange stores key change metadata and returns the device change ID which represents the position in the /sync stream for this device change.
// `userID` is the the user who has changed their keys in some way.
StoreKeyChange(ctx context.Context, userID string) (int64, error)
// KeyChanges returns a list of user IDs who have modified their keys from the offset given (exclusive) to the offset given (inclusive).
// A to offset of types.OffsetNewest means no upper limit.
// Returns the offset of the latest key change.
KeyChanges(ctx context.Context, fromOffset, toOffset int64) (userIDs []string, latestOffset int64, err error)
// StaleDeviceLists returns a list of user IDs ending with the domains provided who have stale device lists.
// If no domains are given, all user IDs with stale device lists are returned.
StaleDeviceLists(ctx context.Context, domains []gomatrixserverlib.ServerName) ([]string, error)
// MarkDeviceListStale sets the stale bit for this user to isStale.
MarkDeviceListStale(ctx context.Context, userID string, isStale bool) error
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CrossSigningKeysForUser(ctx context.Context, userID string) (map[gomatrixserverlib.CrossSigningKeyPurpose]gomatrixserverlib.CrossSigningKey, error)
CrossSigningKeysDataForUser(ctx context.Context, userID string) (types.CrossSigningKeyMap, error)
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CrossSigningSigsForTarget(ctx context.Context, targetUserID string, targetKeyID gomatrixserverlib.KeyID) (types.CrossSigningSigMap, error)
StoreCrossSigningKeysForUser(ctx context.Context, userID string, keyMap types.CrossSigningKeyMap) error
StoreCrossSigningSigsForTarget(ctx context.Context, originUserID string, originKeyID gomatrixserverlib.KeyID, targetUserID string, targetKeyID gomatrixserverlib.KeyID, signature gomatrixserverlib.Base64Bytes) error
}