mirror of
https://github.com/1f349/dendrite.git
synced 2024-12-28 19:16:29 +00:00
097cdf879c
* s/Base64String/Base64Bytes/g Requires https://github.com/matrix-org/gomatrixserverlib/pull/203 to land first * update gmsl
87 lines
3.1 KiB
Go
87 lines
3.1 KiB
Go
// 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.
|
|
|
|
// +build wasm
|
|
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/libp2p/go-libp2p-core/peer"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
)
|
|
|
|
const libp2pMatrixKeyID = "ed25519:libp2p-dendrite"
|
|
|
|
type libp2pKeyFetcher struct {
|
|
}
|
|
|
|
// FetchKeys looks up a batch of public keys.
|
|
// Takes a map from (server name, key ID) pairs to timestamp.
|
|
// The timestamp is when the keys need to be vaild up to.
|
|
// Returns a map from (server name, key ID) pairs to server key objects for
|
|
// that server name containing that key ID
|
|
// The result may have fewer (server name, key ID) pairs than were in the request.
|
|
// The result may have more (server name, key ID) pairs than were in the request.
|
|
// Returns an error if there was a problem fetching the keys.
|
|
func (f *libp2pKeyFetcher) FetchKeys(
|
|
ctx context.Context,
|
|
requests map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.Timestamp,
|
|
) (map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult, error) {
|
|
res := make(map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult)
|
|
for req := range requests {
|
|
if req.KeyID != libp2pMatrixKeyID {
|
|
return nil, fmt.Errorf("FetchKeys: cannot fetch key with ID %s, should be %s", req.KeyID, libp2pMatrixKeyID)
|
|
}
|
|
|
|
// The server name is a libp2p peer ID
|
|
peerIDStr := string(req.ServerName)
|
|
peerID, err := peer.Decode(peerIDStr)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to decode peer ID from server name '%s': %w", peerIDStr, err)
|
|
}
|
|
pubKey, err := peerID.ExtractPublicKey()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to extract public key from peer ID: %w", err)
|
|
}
|
|
pubKeyBytes, err := pubKey.Raw()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to extract raw bytes from public key: %w", err)
|
|
}
|
|
b64Key := gomatrixserverlib.Base64Bytes(pubKeyBytes)
|
|
res[req] = gomatrixserverlib.PublicKeyLookupResult{
|
|
VerifyKey: gomatrixserverlib.VerifyKey{
|
|
Key: b64Key,
|
|
},
|
|
ExpiredTS: gomatrixserverlib.PublicKeyNotExpired,
|
|
ValidUntilTS: gomatrixserverlib.AsTimestamp(time.Now().Add(24 * time.Hour * 365)),
|
|
}
|
|
}
|
|
return res, nil
|
|
}
|
|
|
|
// FetcherName returns the name of this fetcher, which can then be used for
|
|
// logging errors etc.
|
|
func (f *libp2pKeyFetcher) FetcherName() string {
|
|
return "libp2pKeyFetcher"
|
|
}
|
|
|
|
// no-op function for storing keys - we don't do any work to fetch them so don't bother storing.
|
|
func (f *libp2pKeyFetcher) StoreKeys(ctx context.Context, results map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult) error {
|
|
return nil
|
|
}
|