gotosocial/internal/api/fileserver.go

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/*
GoToSocial
Copyright (C) 2021-2023 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/>.
*/
package api
import (
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/api/fileserver"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/middleware"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/router"
)
type Fileserver struct {
fileserver *fileserver.Module
}
// maxAge returns an appropriate max-age value for the
// storage method that's being used.
//
// The default max-age is very long to reflect that we
// never host different files at the same URL (since
// ULIDs are generated per piece of media), so we can
// easily prevent clients having to fetch files repeatedly.
//
// If we're using non-proxying s3, however, the max age is
// significantly shorter, to ensure that clients don't
// cache redirect responses to expired pre-signed URLs.
func maxAge() string {
if config.GetStorageBackend() == "s3" && !config.GetStorageS3Proxy() {
return "max-age=86400" // 24h
}
return "max-age=604800" // 7d
}
func (f *Fileserver) Route(r router.Router, m ...gin.HandlerFunc) {
fileserverGroup := r.AttachGroup("fileserver")
// attach middlewares appropriate for this group
fileserverGroup.Use(m...)
fileserverGroup.Use(middleware.CacheControl("private", maxAge()))
f.fileserver.Route(fileserverGroup.Handle)
}
func NewFileserver(p processing.Processor) *Fileserver {
return &Fileserver{
fileserver: fileserver.New(p),
}
}