Mediahandler (#21)

Media GET and media PUT handlers

internal/api/client/auth/middleware.go

@@ -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)
 

internal/api/client/fileserver/servefile.go

@@ -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)
 }

internal/api/client/media/media.go

@@ -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
 }
 

internal/api/client/media/mediacreate.go

@@ -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{}
+	var form model.AttachmentRequest
-	if err := c.ShouldBind(form); err != nil || form == nil {
+	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 {

internal/api/client/media/mediaget.go

@@ -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)
+}

internal/api/client/media/mediaupdate.go

@@ -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
+}

internal/api/client/status/statuscreate.go

@@ -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)

internal/api/model/attachment.go

@@ -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"`
+	File        *multipart.FileHeader `form:"file" binding:"required"`
-	Thumbnail   *multipart.FileHeader `form:"thumbnail"`
+	Description string                `form:"description" json:"description" xml:"description"`
-	Description string                `form:"description"`
+	Focus       string                `form:"focus" json:"focus" xml:"focus"`
-	Focus       string                `form:"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"`

internal/api/model/status.go

@@ -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

internal/gtsmodel/account.go

@@ -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

internal/media/media.go

@@ -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)
 	}

internal/message/mediaprocess.go

@@ -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
+	focusx, focusy, err := parseFocus(form.Focus)
-	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)
 	if err != nil {
-			return nil, fmt.Errorf("improperly formatted focus %s: %s", form.Focus, err)
+		return nil, 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)
 	}
 	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
+}

internal/message/processor.go

@@ -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 handles the GET of a media attachment with the given ID
-	MediaGet(authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error)
+	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)

internal/oauth/server.go

@@ -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.

internal/oauth/tokenstore.go

@@ -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,
 	}
 }