Method QuerySignatures

keyserver/internal/cross_signing.go:523–584

(ctx context.Context, req *api.QuerySignaturesRequest, res *api.QuerySignaturesResponse)

}

func (a *KeyInternalAPI) QuerySignatures(ctx context.Context, req *api.QuerySignaturesRequest, res *api.QuerySignaturesResponse) {
	for targetUserID, forTargetUser := range req.TargetIDs {
		keyMap, err := a.DB.CrossSigningKeysForUser(ctx, targetUserID)
		if err != nil && err != sql.ErrNoRows {
			res.Error = &api.KeyError{
				Err: fmt.Sprintf("a.DB.CrossSigningKeysForUser: %s", err),
			}
			continue
		}

		for targetPurpose, targetKey := range keyMap {
			switch targetPurpose {
			case gomatrixserverlib.CrossSigningKeyPurposeMaster:
				if res.MasterKeys == nil {
					res.MasterKeys = map[string]gomatrixserverlib.CrossSigningKey{}
				}
				res.MasterKeys[targetUserID] = targetKey

			case gomatrixserverlib.CrossSigningKeyPurposeSelfSigning:
				if res.SelfSigningKeys == nil {
					res.SelfSigningKeys = map[string]gomatrixserverlib.CrossSigningKey{}
				}
				res.SelfSigningKeys[targetUserID] = targetKey

			case gomatrixserverlib.CrossSigningKeyPurposeUserSigning:
				if res.UserSigningKeys == nil {
					res.UserSigningKeys = map[string]gomatrixserverlib.CrossSigningKey{}
				}
				res.UserSigningKeys[targetUserID] = targetKey
			}
		}

		for _, targetKeyID := range forTargetUser {
			// Get own signatures only.
			sigMap, err := a.DB.CrossSigningSigsForTarget(ctx, targetUserID, targetUserID, targetKeyID)
			if err != nil && err != sql.ErrNoRows {
				res.Error = &api.KeyError{
					Err: fmt.Sprintf("a.DB.CrossSigningSigsForTarget: %s", err),
				}
				return
			}

			for sourceUserID, forSourceUser := range sigMap {
				for sourceKeyID, sourceSig := range forSourceUser {
					if res.Signatures == nil {
						res.Signatures = map[string]map[gomatrixserverlib.KeyID]types.CrossSigningSigMap{}
					}
					if _, ok := res.Signatures[targetUserID]; !ok {
						res.Signatures[targetUserID] = map[gomatrixserverlib.KeyID]types.CrossSigningSigMap{}
					}
					if _, ok := res.Signatures[targetUserID][targetKeyID]; !ok {
						res.Signatures[targetUserID][targetKeyID] = types.CrossSigningSigMap{}
					}
					if _, ok := res.Signatures[targetUserID][targetKeyID][sourceUserID]; !ok {
						res.Signatures[targetUserID][targetKeyID][sourceUserID] = map[gomatrixserverlib.KeyID]gomatrixserverlib.Base64Bytes{}
					}
					res.Signatures[targetUserID][targetKeyID][sourceUserID][sourceKeyID] = sourceSig
				}