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Mediahandler (#21) 

Media GET and media PUT handlers
This commit is contained in:
Tobi Smethurst 2021-05-10 16:29:05 +02:00 committed by GitHub
parent dc338dc881
commit 742f985d5b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 322 additions and 56 deletions
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3
internal/api/client/auth/middleware.go
View File

@ -35,9 +35,10 @@ func (m *Module) OauthTokenMiddleware(c *gin.Context) {
ti, err := m.server.ValidationBearerToken(c.Request)
if err != nil {
l.Trace("no valid token presented: continuing with unauthenticated request")
l.Tracef("could not validate token: %s", err)
return
}
l.Trace("continuing with unauthenticated request")
c.Set(oauth.SessionAuthorizedToken, ti)
l.Tracef("set gin context %s to %+v", oauth.SessionAuthorizedToken, ti)

11
internal/api/client/fileserver/servefile.go
View File

@ -78,7 +78,7 @@ func (m *FileServer) ServeFile(c *gin.Context) {
return
}
content, err := m.processor.MediaGet(authed, &model.GetContentRequestForm{
content, err := m.processor.FileGet(authed, &model.GetContentRequestForm{
AccountID: accountID,
MediaType: mediaType,
MediaSize: mediaSize,
@ -90,5 +90,14 @@ func (m *FileServer) ServeFile(c *gin.Context) {
return
}
// TODO: do proper content negotiation here -- if the requester only accepts text/html we should try to serve them *something*
// This is mostly needed because when sharing a link to a gts-hosted file on something like mastodon, the masto servers will
// attempt to look up the content to provide a preview of the link, and they ask for text/html.
if c.NegotiateFormat(content.ContentType) == "" {
l.Debugf("couldn't negotiate content for Accept headers %+v: we have content type %s", c.Request.Header.Get("Accepted"), content.ContentType)
c.AbortWithStatus(http.StatusNotAcceptable)
return
}
c.DataFromReader(http.StatusOK, content.ContentLength, content.ContentType, bytes.NewReader(content.Content), nil)
}

6
internal/api/client/media/media.go
View File

@ -33,6 +33,10 @@ import (
// BasePath is the base API path for making media requests
const BasePath = "/api/v1/media"
// IDKey is the key for media attachment IDs
const IDKey = "id"
// BasePathWithID corresponds to a media attachment with the given ID
const BasePathWithID = BasePath + "/:" + IDKey
// Module implements the ClientAPIModule interface for media
type Module struct {
@ -53,6 +57,8 @@ func New(config *config.Config, processor message.Processor, log *logrus.Logger)
// Route satisfies the RESTAPIModule interface
func (m *Module) Route(s router.Router) error {
s.AttachHandler(http.MethodPost, BasePath, m.MediaCreatePOSTHandler)
s.AttachHandler(http.MethodGet, BasePathWithID, m.MediaGETHandler)
s.AttachHandler(http.MethodPut, BasePathWithID, m.MediaPUTHandler)
return nil
}

10
internal/api/client/media/mediacreate.go
View File

@ -41,8 +41,8 @@ func (m *Module) MediaCreatePOSTHandler(c *gin.Context) {
// extract the media create form from the request context
l.Tracef("parsing request form: %s", c.Request.Form)
form := &model.AttachmentRequest{}
if err := c.ShouldBind(form); err != nil || form == nil {
var form model.AttachmentRequest
if err := c.ShouldBind(&form); err != nil {
l.Debugf("could not parse form from request: %s", err)
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one or more required form values"})
return
@ -50,19 +50,19 @@ func (m *Module) MediaCreatePOSTHandler(c *gin.Context) {
// Give the fields on the request form a first pass to make sure the request is superficially valid.
l.Tracef("validating form %+v", form)
if err := validateCreateMedia(form, m.config.MediaConfig); err != nil {
if err := validateCreateMedia(&form, m.config.MediaConfig); err != nil {
l.Debugf("error validating form: %s", err)
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
mastoAttachment, err := m.processor.MediaCreate(authed, form)
mastoAttachment, err := m.processor.MediaCreate(authed, &form)
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
c.JSON(http.StatusAccepted, mastoAttachment)
c.JSON(http.StatusOK, mastoAttachment)
}
func validateCreateMedia(form *model.AttachmentRequest, config *config.MediaConfig) error {

51
internal/api/client/media/mediaget.go Normal file
View File

@ -0,0 +1,51 @@
package media
import (
"net/http"
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
)
/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// MediaGETHandler allows the owner of an attachment to get information about that attachment before it's used in a status.
func (m *Module) MediaGETHandler(c *gin.Context) {
l := m.log.WithField("func", "MediaGETHandler")
authed, err := oauth.Authed(c, true, true, true, true)
if err != nil {
l.Debugf("couldn't auth: %s", err)
c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
return
}
attachmentID := c.Param(IDKey)
if attachmentID == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "no attachment ID given in request"})
return
}
attachment, errWithCode := m.processor.MediaGet(authed, attachmentID)
if errWithCode != nil {
c.JSON(errWithCode.Code(),gin.H{"error": errWithCode.Safe()})
return
}
c.JSON(http.StatusOK, attachment)
}

87
internal/api/client/media/mediaupdate.go Normal file
View File

@ -0,0 +1,87 @@
package media
import (
"errors"
"fmt"
"net/http"
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
)
/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// MediaPUTHandler allows the owner of an attachment to update information about that attachment before it's used in a status.
func (m *Module) MediaPUTHandler(c *gin.Context) {
l := m.log.WithField("func", "MediaGETHandler")
authed, err := oauth.Authed(c, true, true, true, true)
if err != nil {
l.Debugf("couldn't auth: %s", err)
c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
return
}
attachmentID := c.Param(IDKey)
if attachmentID == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "no attachment ID given in request"})
return
}
// extract the media update form from the request context
l.Tracef("parsing request form: %s", c.Request.Form)
var form model.AttachmentUpdateRequest
if err := c.ShouldBind(&form); err != nil {
l.Debugf("could not parse form from request: %s", err)
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one or more required form values"})
return
}
// Give the fields on the request form a first pass to make sure the request is superficially valid.
l.Tracef("validating form %+v", form)
if err := validateUpdateMedia(&form, m.config.MediaConfig); err != nil {
l.Debugf("error validating form: %s", err)
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
attachment, errWithCode := m.processor.MediaUpdate(authed, attachmentID, &form)
if errWithCode != nil {
c.JSON(errWithCode.Code(), gin.H{"error": errWithCode.Safe()})
return
}
c.JSON(http.StatusOK, attachment)
}
func validateUpdateMedia(form *model.AttachmentUpdateRequest, config *config.MediaConfig) error {
if form.Description != nil {
if len(*form.Description) < config.MinDescriptionChars || len(*form.Description) > config.MaxDescriptionChars {
return fmt.Errorf("image description length must be between %d and %d characters (inclusive), but provided image description was %d chars", config.MinDescriptionChars, config.MaxDescriptionChars, len(*form.Description))
}
}
if form.Focus == nil && form.Description == nil {
return errors.New("focus and description were both nil, there's nothing to update")
}
return nil
}

3
internal/api/client/status/statuscreate.go
View File

@ -49,13 +49,14 @@ func (m *Module) StatusCreatePOSTHandler(c *gin.Context) {
}
// extract the status create form from the request context
l.Tracef("parsing request form: %s", c.Request.Form)
l.Debugf("parsing request form: %s", c.Request.Form)
form := &model.AdvancedStatusCreateForm{}
if err := c.ShouldBind(form); err != nil || form == nil {
l.Debugf("could not parse form from request: %s", err)
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one or more required form values"})
return
}
l.Debugf("handling status request form: %+v", form)
// Give the fields on the request form a first pass to make sure the request is superficially valid.
l.Tracef("validating form %+v", form)

16
internal/api/model/attachment.go
View File

@ -23,10 +23,16 @@ import "mime/multipart"
// AttachmentRequest represents the form data parameters submitted by a client during a media upload request.
// See: https://docs.joinmastodon.org/methods/statuses/media/
type AttachmentRequest struct {
File *multipart.FileHeader `form:"file"`
Thumbnail *multipart.FileHeader `form:"thumbnail"`
Description string `form:"description"`
Focus string `form:"focus"`
File *multipart.FileHeader `form:"file" binding:"required"`
Description string `form:"description" json:"description" xml:"description"`
Focus string `form:"focus" json:"focus" xml:"focus"`
}
// AttachmentRequest represents the form data parameters submitted by a client during a media update/PUT request.
// See: https://docs.joinmastodon.org/methods/statuses/media/
type AttachmentUpdateRequest struct {
Description *string `form:"description" json:"description" xml:"description"`
Focus *string `form:"focus" json:"focus" xml:"focus"`
}
// Attachment represents the object returned to a client after a successful media upload request.
@ -57,7 +63,7 @@ type Attachment struct {
// See https://docs.joinmastodon.org/methods/statuses/media/#focal-points points for more.
Meta MediaMeta `json:"meta,omitempty"`
// Alternate text that describes what is in the media attachment, to be used for the visually impaired or when media attachments do not load.
Description string `json:"description,omitempty"`
Description string `json:"description"`
// A hash computed by the BlurHash algorithm, for generating colorful preview thumbnails when media has not been downloaded yet.
// See https://github.com/woltapp/blurhash
Blurhash string `json:"blurhash,omitempty"`

2
internal/api/model/status.go
View File

@ -88,7 +88,7 @@ type StatusCreateRequest struct {
// Text content of the status. If media_ids is provided, this becomes optional. Attaching a poll is optional while status is provided.
Status string `form:"status"`
// Array of Attachment ids to be attached as media. If provided, status becomes optional, and poll cannot be used.
MediaIDs []string `form:"media_ids"`
MediaIDs []string `form:"media_ids" json:"media_ids" xml:"media_ids"`
// Poll to include with this status.
Poll *PollRequest `form:"poll"`
// ID of the status being replied to, if status is a reply

6
internal/gtsmodel/account.go
View File

@ -76,15 +76,15 @@ type Account struct {
*/
// Does this account need an approval for new followers?
Locked bool
Locked bool `pg:",default:true"`
// Should this account be shown in the instance's profile directory?
Discoverable bool
// Default post privacy for this account
Privacy Visibility
// Set posts from this account to sensitive by default?
Sensitive bool
Sensitive bool `pg:",default:false"`
// What language does this account post in?
Language string
Language string `pg:",default:en"`
/*
ACTIVITYPUB THINGS

5
internal/media/media.go
View File

@ -410,22 +410,25 @@ func (mh *mediaHandler) processHeaderOrAvi(imageBytes []byte, contentType string
var clean []byte
var err error
var original *imageAndMeta
switch contentType {
case MIMEJpeg:
if clean, err = purgeExif(imageBytes); err != nil {
return nil, fmt.Errorf("error cleaning exif data: %s", err)
}
original, err = deriveImage(clean, contentType)
case MIMEPng:
if clean, err = purgeExif(imageBytes); err != nil {
return nil, fmt.Errorf("error cleaning exif data: %s", err)
}
original, err = deriveImage(clean, contentType)
case MIMEGif:
clean = imageBytes
original, err = deriveGif(clean, contentType)
default:
return nil, errors.New("media type unrecognized")
}
original, err := deriveImage(clean, contentType)
if err != nil {
return nil, fmt.Errorf("error parsing image: %s", err)
}

135
internal/message/mediaprocess.go
View File

@ -9,6 +9,7 @@ import (
"strings"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
@ -17,6 +18,8 @@ import (
func (p *processor) MediaCreate(authed *oauth.Auth, form *apimodel.AttachmentRequest) (*apimodel.Attachment, error) {
// First check this user/account is permitted to create media
// There's no point continuing otherwise.
//
// TODO: move this check to the oauth.Authed function and do it for all accounts
if authed.User.Disabled || !authed.User.Approved || !authed.Account.SuspendedAt.IsZero() {
return nil, errors.New("not authorized to post new media")
}
@ -49,34 +52,9 @@ func (p *processor) MediaCreate(authed *oauth.Auth, form *apimodel.AttachmentReq
attachment.Description = form.Description
// now parse the focus parameter
// TODO: tidy this up into a separate function and just return an error so all the c.JSON and return calls are obviated
var focusx, focusy float32
if form.Focus != "" {
spl := strings.Split(form.Focus, ",")
if len(spl) != 2 {
return nil, fmt.Errorf("improperly formatted focus %s", form.Focus)
}
xStr := spl[0]
yStr := spl[1]
if xStr == "" || yStr == "" {
return nil, fmt.Errorf("improperly formatted focus %s", form.Focus)
}
fx, err := strconv.ParseFloat(xStr, 32)
focusx, focusy, err := parseFocus(form.Focus)
if err != nil {
return nil, fmt.Errorf("improperly formatted focus %s: %s", form.Focus, err)
}
if fx > 1 || fx < -1 {
return nil, fmt.Errorf("improperly formatted focus %s", form.Focus)
}
focusx = float32(fx)
fy, err := strconv.ParseFloat(yStr, 32)
if err != nil {
return nil, fmt.Errorf("improperly formatted focus %s: %s", form.Focus, err)
}
if fy > 1 || fy < -1 {
return nil, fmt.Errorf("improperly formatted focus %s", form.Focus)
}
focusy = float32(fy)
return nil, err
}
attachment.FileMeta.Focus.X = focusx
attachment.FileMeta.Focus.Y = focusy
@ -96,7 +74,70 @@ func (p *processor) MediaCreate(authed *oauth.Auth, form *apimodel.AttachmentReq
return &mastoAttachment, nil
}
func (p *processor) MediaGet(authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error) {
func (p *processor) MediaGet(authed *oauth.Auth, mediaAttachmentID string) (*apimodel.Attachment, ErrorWithCode) {
attachment := &gtsmodel.MediaAttachment{}
if err := p.db.GetByID(mediaAttachmentID, attachment); err != nil {
if _, ok := err.(db.ErrNoEntries); ok {
// attachment doesn't exist
return nil, NewErrorNotFound(errors.New("attachment doesn't exist in the db"))
}
return nil, NewErrorNotFound(fmt.Errorf("db error getting attachment: %s", err))
}
if attachment.AccountID != authed.Account.ID {
return nil, NewErrorNotFound(errors.New("attachment not owned by requesting account"))
}
a, err := p.tc.AttachmentToMasto(attachment)
if err != nil {
return nil, NewErrorNotFound(fmt.Errorf("error converting attachment: %s", err))
}
return &a, nil
}
func (p *processor) MediaUpdate(authed *oauth.Auth, mediaAttachmentID string, form *apimodel.AttachmentUpdateRequest) (*apimodel.Attachment, ErrorWithCode) {
attachment := &gtsmodel.MediaAttachment{}
if err := p.db.GetByID(mediaAttachmentID, attachment); err != nil {
if _, ok := err.(db.ErrNoEntries); ok {
// attachment doesn't exist
return nil, NewErrorNotFound(errors.New("attachment doesn't exist in the db"))
}
return nil, NewErrorNotFound(fmt.Errorf("db error getting attachment: %s", err))
}
if attachment.AccountID != authed.Account.ID {
return nil, NewErrorNotFound(errors.New("attachment not owned by requesting account"))
}
if form.Description != nil {
attachment.Description = *form.Description
if err := p.db.UpdateByID(mediaAttachmentID, attachment); err != nil {
return nil, NewErrorInternalError(fmt.Errorf("database error updating description: %s", err))
}
}
if form.Focus != nil {
focusx, focusy, err := parseFocus(*form.Focus)
if err != nil {
return nil, NewErrorBadRequest(err)
}
attachment.FileMeta.Focus.X = focusx
attachment.FileMeta.Focus.Y = focusy
if err := p.db.UpdateByID(mediaAttachmentID, attachment); err != nil {
return nil, NewErrorInternalError(fmt.Errorf("database error updating focus: %s", err))
}
}
a, err := p.tc.AttachmentToMasto(attachment)
if err != nil {
return nil, NewErrorNotFound(fmt.Errorf("error converting attachment: %s", err))
}
return &a, nil
}
func (p *processor) FileGet(authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error) {
// parse the form fields
mediaSize, err := media.ParseMediaSize(form.MediaSize)
if err != nil {
@ -186,3 +227,41 @@ func (p *processor) MediaGet(authed *oauth.Auth, form *apimodel.GetContentReques
content.Content = bytes
return content, nil
}
func parseFocus(focus string) (focusx, focusy float32, err error) {
if focus == "" {
return
}
spl := strings.Split(focus, ",")
if len(spl) != 2 {
err = fmt.Errorf("improperly formatted focus %s", focus)
return
}
xStr := spl[0]
yStr := spl[1]
if xStr == "" || yStr == "" {
err = fmt.Errorf("improperly formatted focus %s", focus)
return
}
fx, err := strconv.ParseFloat(xStr, 32)
if err != nil {
err = fmt.Errorf("improperly formatted focus %s: %s", focus, err)
return
}
if fx > 1 || fx < -1 {
err = fmt.Errorf("improperly formatted focus %s", focus)
return
}
focusx = float32(fx)
fy, err := strconv.ParseFloat(yStr, 32)
if err != nil {
err = fmt.Errorf("improperly formatted focus %s: %s", focus, err)
return
}
if fy > 1 || fy < -1 {
err = fmt.Errorf("improperly formatted focus %s", focus)
return
}
focusy = float32(fy)
return
}

9
internal/message/processor.go
View File

@ -74,13 +74,18 @@ type Processor interface {
// AppCreate processes the creation of a new API application
AppCreate(authed *oauth.Auth, form *apimodel.ApplicationCreateRequest) (*apimodel.Application, error)
// FileGet handles the fetching of a media attachment file via the fileserver.
FileGet(authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error)
// InstanceGet retrieves instance information for serving at api/v1/instance
InstanceGet(domain string) (*apimodel.Instance, ErrorWithCode)
// MediaCreate handles the creation of a media attachment, using the given form.
MediaCreate(authed *oauth.Auth, form *apimodel.AttachmentRequest) (*apimodel.Attachment, error)
// MediaGet handles the fetching of a media attachment, using the given request form.
MediaGet(authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error)
// MediaGet handles the GET of a media attachment with the given ID
MediaGet(authed *oauth.Auth, attachmentID string) (*apimodel.Attachment, ErrorWithCode)
// MediaUpdate handles the PUT of a media attachment with the given ID and form
MediaUpdate(authed *oauth.Auth, attachmentID string, form *apimodel.AttachmentUpdateRequest) (*apimodel.Attachment, ErrorWithCode)
// StatusCreate processes the given form to create a new status, returning the api model representation of that status if it's OK.
StatusCreate(authed *oauth.Auth, form *apimodel.AdvancedStatusCreateForm) (*apimodel.Status, error)

5
internal/oauth/server.go
View File

@ -72,7 +72,10 @@ func New(database db.DB, log *logrus.Logger) Server {
manager := manage.NewDefaultManager()
manager.MapTokenStorage(ts)
manager.MapClientStorage(cs)
manager.SetAuthorizeCodeTokenCfg(manage.DefaultAuthorizeCodeTokenCfg)
manager.SetAuthorizeCodeTokenCfg(&manage.Config{
AccessTokenExp: 0, // access tokens don't expire -- they must be revoked
IsGenerateRefresh: false, // don't use refresh tokens
})
sc := &server.Config{
TokenType: "Bearer",
// Must follow the spec.

27
internal/oauth/tokenstore.go
View File

@ -202,17 +202,17 @@ func TokenToPGToken(tkn *models.Token) *Token {
// going to cause all sorts of interesting problems. So check first to make sure that the ExpiresIn is not equal
// to the zero value of a time.Duration, which is 0s. If it *is* empty/nil, just leave the ExpiresAt at nil as well.
var cea time.Time
cea := time.Time{}
if tkn.CodeExpiresIn != 0*time.Second {
cea = now.Add(tkn.CodeExpiresIn)
}
var aea time.Time
aea := time.Time{}
if tkn.AccessExpiresIn != 0*time.Second {
aea = now.Add(tkn.AccessExpiresIn)
}
var rea time.Time
rea := time.Time{}
if tkn.RefreshExpiresIn != 0*time.Second {
rea = now.Add(tkn.RefreshExpiresIn)
}
@ -240,6 +240,21 @@ func TokenToPGToken(tkn *models.Token) *Token {
func TokenToOauthToken(pgt *Token) *models.Token {
now := time.Now()
var codeExpiresIn time.Duration
if !pgt.CodeExpiresAt.IsZero() {
codeExpiresIn = pgt.CodeExpiresAt.Sub(now)
}
var accessExpiresIn time.Duration
if !pgt.AccessExpiresAt.IsZero() {
accessExpiresIn = pgt.AccessExpiresAt.Sub(now)
}
var refreshExpiresIn time.Duration
if !pgt.RefreshExpiresAt.IsZero() {
refreshExpiresIn = pgt.RefreshExpiresAt.Sub(now)
}
return &models.Token{
ClientID: pgt.ClientID,
UserID: pgt.UserID,
@ -249,12 +264,12 @@ func TokenToOauthToken(pgt *Token) *models.Token {
CodeChallenge: pgt.CodeChallenge,
CodeChallengeMethod: pgt.CodeChallengeMethod,
CodeCreateAt: pgt.CodeCreateAt,
CodeExpiresIn: pgt.CodeExpiresAt.Sub(now),
CodeExpiresIn: codeExpiresIn,
Access: pgt.Access,
AccessCreateAt: pgt.AccessCreateAt,
AccessExpiresIn: pgt.AccessExpiresAt.Sub(now),
AccessExpiresIn: accessExpiresIn,
Refresh: pgt.Refresh,
RefreshCreateAt: pgt.RefreshCreateAt,
RefreshExpiresIn: pgt.RefreshExpiresAt.Sub(now),
RefreshExpiresIn: refreshExpiresIn,
}
}