146 lines
4.6 KiB
Go
146 lines
4.6 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package media
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import (
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"errors"
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"fmt"
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"github.com/sirupsen/logrus"
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/oauth"
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)
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// MediaCreatePOSTHandler swagger:operation POST /api/v1/media mediaCreate
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//
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// Upload a new media attachment.
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//
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// ---
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// tags:
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// - media
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//
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// consumes:
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// - multipart/form-data
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//
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// produces:
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// - application/json
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//
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// parameters:
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// - name: description
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// in: formData
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// description: |-
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// Image or media description to use as alt-text on the attachment.
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// This is very useful for users of screenreaders.
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// May or may not be required, depending on your instance settings.
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// type: string
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// - name: focus
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// in: formData
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// description: |-
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// Focus of the media file.
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// If present, it should be in the form of two comma-separated floats between -1 and 1.
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// For example: `-0.5,0.25`.
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// type: string
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// - name: file
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// in: formData
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// description: The media attachment to upload.
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// type: file
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// required: true
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//
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// security:
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// - OAuth2 Bearer:
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// - write:media
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//
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// responses:
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// '200':
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// description: The newly-created media attachment.
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// schema:
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// "$ref": "#/definitions/attachment"
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// '400':
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// description: bad request
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// '401':
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// description: unauthorized
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// '403':
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// description: forbidden
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// '422':
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// description: unprocessable
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func (m *Module) MediaCreatePOSTHandler(c *gin.Context) {
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l := logrus.WithField("func", "statusCreatePOSTHandler")
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authed, err := oauth.Authed(c, true, true, true, true) // posting new media is serious business so we want *everything*
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if err != nil {
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l.Debugf("couldn't auth: %s", err)
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c.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
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return
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}
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// extract the media create form from the request context
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l.Tracef("parsing request form: %s", c.Request.Form)
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form := &model.AttachmentRequest{}
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if err := c.ShouldBind(&form); err != nil {
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l.Debugf("error parsing form: %s", err)
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c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Errorf("could not parse form: %s", err)})
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return
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}
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// Give the fields on the request form a first pass to make sure the request is superficially valid.
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l.Tracef("validating form %+v", form)
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if err := validateCreateMedia(form, m.config.MediaConfig); err != nil {
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l.Debugf("error validating form: %s", err)
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c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
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return
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}
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l.Debug("calling processor media create func")
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apiAttachment, err := m.processor.MediaCreate(c.Request.Context(), authed, form)
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if err != nil {
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l.Debugf("error creating attachment: %s", err)
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c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, apiAttachment)
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}
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func validateCreateMedia(form *model.AttachmentRequest, config *config.MediaConfig) error {
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// check there actually is a file attached and it's not size 0
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if form.File == nil {
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return errors.New("no attachment given")
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}
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// a very superficial check to see if no size limits are exceeded
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// we still don't actually know which media types we're dealing with but the other handlers will go into more detail there
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maxSize := config.MaxVideoSize
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if config.MaxImageSize > maxSize {
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maxSize = config.MaxImageSize
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}
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if form.File.Size > int64(maxSize) {
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return fmt.Errorf("file size limit exceeded: limit is %d bytes but attachment was %d bytes", maxSize, form.File.Size)
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}
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if len(form.Description) < config.MinDescriptionChars || len(form.Description) > config.MaxDescriptionChars {
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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))
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}
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// TODO: validate focus here
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return nil
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}
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