gotosocial/internal/web/etag.go
tobi 80663061d8
[feature] Add opt-in RSS feed for account's latest Public posts (#897)
* start adding rss functionality

* add gorilla/feeds dependency

* first bash at building rss feed
still needs work, this is an interim commit

* tidy up a bit

* add publicOnly option to GetAccountLastPosted

* implement rss endpoint

* fix test

* add initial user docs for rss

* update rss logo

* docs update

* add rssFeed to frontend

* feed -> feed.rss

* enableRSS

* increase rss logo size a lil bit

* add rss toggle

* move emojify to text package

* fiddle with rss feed formatting

* add Text field to test statuses

* move status to rss item to typeconverter

* update bun schema for enablerss

* simplify 304 checking

* assume account not rss

* update tests

* update swagger docs

* allow more characters in title, trim nicer

* update last posted to be more consistent
2022-10-08 14:00:39 +02:00

62 lines
1.6 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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 web
import (
// nolint:gosec
"crypto/sha1"
"encoding/hex"
"io"
"time"
"github.com/superseriousbusiness/gotosocial/internal/log"
"codeberg.org/gruf/go-cache/v2"
)
func newETagCache() cache.Cache[string, eTagCacheEntry] {
eTagCache := cache.New[string, eTagCacheEntry]()
eTagCache.SetTTL(time.Hour, false)
if !eTagCache.Start(time.Minute) {
log.Panic("could not start eTagCache")
}
return eTagCache
}
type eTagCacheEntry struct {
eTag string
lastModified time.Time
}
// generateEtag generates a strong (byte-for-byte) etag using
// the entirety of the provided reader.
func generateEtag(r io.Reader) (string, error) {
// nolint:gosec
hash := sha1.New()
if _, err := io.Copy(hash, r); err != nil {
return "", err
}
b := make([]byte, 0, sha1.Size)
b = hash.Sum(b)
return `"` + hex.EncodeToString(b) + `"`, nil
}