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// Copyright 2024 New Vector Ltd.
// Copyright 2021 The Matrix.org Foundation C.I.C.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
package routing
import (
"net/http"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/gomatrixserverlib/spec"
"github.com/matrix-org/util"
)
type openIDTokenResponse struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type"`
MatrixServerName string `json:"matrix_server_name"`
ExpiresIn int64 `json:"expires_in"`
}
// CreateOpenIDToken creates a new OpenID Connect (OIDC) token that a Matrix user
// can supply to an OpenID Relying Party to verify their identity
func CreateOpenIDToken(
req *http.Request,
userAPI api.ClientUserAPI,
device *api.Device,
userID string,
cfg *config.ClientAPI,
) util.JSONResponse {
// does the incoming user ID match the user that the token was issued for?
if userID != device.UserID {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: spec.Forbidden("Cannot request tokens for other users"),
}
}
request := api.PerformOpenIDTokenCreationRequest{
UserID: userID, // this is the user ID from the incoming path
}
response := api.PerformOpenIDTokenCreationResponse{}
err := userAPI.PerformOpenIDTokenCreation(req.Context(), &request, &response)
if err != nil {
util.GetLogger(req.Context()).WithError(err).Error("userAPI.CreateOpenIDToken failed")
return util.JSONResponse{
Code: http.StatusInternalServerError,
JSON: spec.InternalServerError{},
}
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: openIDTokenResponse{
AccessToken: response.Token.Token,
TokenType: "Bearer",
MatrixServerName: string(device.UserDomain()),
ExpiresIn: response.Token.ExpiresAtMS / 1000, // convert ms to s
},
}
}
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