gtsocial-umbx

mediacreate.go (5363B)

---

 // GoToSocial
 // Copyright (C) GoToSocial Authors admin@gotosocial.org
 // SPDX-License-Identifier: AGPL-3.0-or-later
 //
 // 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/>.
 
 package media
 
 import (
 	"errors"
 	"fmt"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
 	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
 	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
 	"github.com/superseriousbusiness/gotosocial/internal/oauth"
 )
 
 // MediaCreatePOSTHandler swagger:operation POST /api/{api_version}/media mediaCreate
 //
 // Upload a new media attachment.
 //
 //	---
 //	tags:
 //	- media
 //
 //	consumes:
 //	- multipart/form-data
 //
 //	produces:
 //	- application/json
 //
 //	parameters:
 //	-
 //		name: api_version
 //		type: string
 //		in: path
 //		description: Version of the API to use. Must be either `v1` or `v2`.
 //		required: true
 //	-
 //		name: description
 //		in: formData
 //		description: >-
 //			Image or media description to use as alt-text on the attachment.
 //			This is very useful for users of screenreaders!
 //			May or may not be required, depending on your instance settings.
 //		type: string
 //	-
 //		name: focus
 //		in: formData
 //		description: >-
 //			Focus of the media file.
 //			If present, it should be in the form of two comma-separated floats between -1 and 1.
 //			For example: `-0.5,0.25`.
 //		type: string
 //		default: "0,0"
 //	-
 //		name: file
 //		in: formData
 //		description: The media attachment to upload.
 //		type: file
 //		required: true
 //
 //	security:
 //	- OAuth2 Bearer:
 //		- write:media
 //
 //	responses:
 //		'200':
 //			description: The newly-created media attachment.
 //			schema:
 //				"$ref": "#/definitions/attachment"
 //		'400':
 //			description: bad request
 //		'401':
 //			description: unauthorized
 //		'422':
 //			description: unprocessable
 //		'500':
 //			description: internal server error
 func (m *Module) MediaCreatePOSTHandler(c *gin.Context) {
 	apiVersion := c.Param(APIVersionKey)
 	if apiVersion != APIv1 && apiVersion != APIv2 {
 		err := errors.New("api version must be one of v1 or v2 for this path")
 		apiutil.ErrorHandler(c, gtserror.NewErrorNotFound(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
 	authed, err := oauth.Authed(c, true, true, true, true)
 	if err != nil {
 		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
 	if _, err := apiutil.NegotiateAccept(c, apiutil.JSONAcceptHeaders...); err != nil {
 		apiutil.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
 	form := &apimodel.AttachmentRequest{}
 	if err := c.ShouldBind(&form); err != nil {
 		apiutil.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
 	if err := validateCreateMedia(form); err != nil {
 		apiutil.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
 	apiAttachment, errWithCode := m.processor.Media().Create(c.Request.Context(), authed.Account, form)
 	if errWithCode != nil {
 		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
 		return
 	}
 
 	if apiVersion == APIv2 {
 		// the mastodon v2 media API specifies that the URL should be null
 		// and that the client should call /api/v1/media/:id to get the URL
 		//
 		// so even though we have the URL already, remove it now to comply
 		// with the api
 		apiAttachment.URL = nil
 	}
 
 	c.JSON(http.StatusOK, apiAttachment)
 }
 
 func validateCreateMedia(form *apimodel.AttachmentRequest) error {
 	// check there actually is a file attached and it's not size 0
 	if form.File == nil {
 		return errors.New("no attachment given")
 	}
 
 	maxVideoSize := config.GetMediaVideoMaxSize()
 	maxImageSize := config.GetMediaImageMaxSize()
 	minDescriptionChars := config.GetMediaDescriptionMinChars()
 	maxDescriptionChars := config.GetMediaDescriptionMaxChars()
 
 	// a very superficial check to see if no size limits are exceeded
 	// we still don't actually know which media types we're dealing with but the other handlers will go into more detail there
 	maxSize := maxVideoSize
 	if maxImageSize > maxSize {
 		maxSize = maxImageSize
 	}
 
 	if form.File.Size > int64(maxSize) {
 		return fmt.Errorf("file size limit exceeded: limit is %d bytes but attachment was %d bytes", maxSize, form.File.Size)
 	}
 
 	if length := len([]rune(form.Description)); length > maxDescriptionChars {
 		return fmt.Errorf("image description length must be between %d and %d characters (inclusive), but provided image description was %d chars", minDescriptionChars, maxDescriptionChars, length)
 	}
 
 	return nil
 }