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Fix retrieving cross-signing signatures in /user/devices/{userId} (#2368)

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* Fix retrieving cross-signing signatures in `/user/devices/{userId}`

We need to know the target device IDs in order to get the signatures and we weren't populating those.

* Fix up signature retrieval

* Fix SQLite

* Always include the target's own signatures as well as the requesting user
This commit is contained in:
Neil Alexander 2022-04-22 14:58:24 +01:00 • committed by GitHub
parent c07f347f00
commit 6d78c4d67d
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
8 changed files with 52 additions and 26 deletions
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30
keyserver/internal/internal.go
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@ -313,9 +313,31 @@ func (a *KeyInternalAPI) QueryKeys(ctx context.Context, req *api.QueryKeysReques
// Finally, append signatures that we know about
// TODO: This is horrible because we need to round-trip the signature from
// JSON, add the signatures and marshal it again, for some reason?
for userID, forUserID := range res.DeviceKeys {
for keyID, key := range forUserID {
sigMap, err := a.DB.CrossSigningSigsForTarget(ctx, userID, gomatrixserverlib.KeyID(keyID))
for targetUserID, masterKey := range res.MasterKeys {
for targetKeyID := range masterKey.Keys {
sigMap, err := a.DB.CrossSigningSigsForTarget(ctx, req.UserID, targetUserID, targetKeyID)
if err != nil {
logrus.WithError(err).Errorf("a.DB.CrossSigningSigsForTarget failed")
continue
}
if len(sigMap) == 0 {
continue
}
for sourceUserID, forSourceUser := range sigMap {
for sourceKeyID, sourceSig := range forSourceUser {
if _, ok := masterKey.Signatures[sourceUserID]; !ok {
masterKey.Signatures[sourceUserID] = map[gomatrixserverlib.KeyID]gomatrixserverlib.Base64Bytes{}
}
masterKey.Signatures[sourceUserID][sourceKeyID] = sourceSig
}
}
}
}
for targetUserID, forUserID := range res.DeviceKeys {
for targetKeyID, key := range forUserID {
sigMap, err := a.DB.CrossSigningSigsForTarget(ctx, req.UserID, targetUserID, gomatrixserverlib.KeyID(targetKeyID))
if err != nil {
logrus.WithError(err).Errorf("a.DB.CrossSigningSigsForTarget failed")
continue
@ -339,7 +361,7 @@ func (a *KeyInternalAPI) QueryKeys(ctx context.Context, req *api.QueryKeysReques
}
}
if js, err := json.Marshal(deviceKey); err == nil {
res.DeviceKeys[userID][keyID] = js
res.DeviceKeys[targetUserID][targetKeyID] = js
}
}
}