Add Docker /v2/_catalog endpoint (#20469) (#20556)

* Added properties for packages.
* Fixed authenticate header format.
* Added _catalog endpoint.
* Check owner visibility.
* Extracted condition.
* Added test for _catalog.

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

models/migrations/v219.go

@@ -0,0 +1,31 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"time"
+
+	"code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func addSyncOnCommitColForPushMirror(x *xorm.Engine) error {
+	type PushMirror struct {
+		ID         int64            `xorm:"pk autoincr"`
+		RepoID     int64            `xorm:"INDEX"`
+		Repo       *repo.Repository `xorm:"-"`
+		RemoteName string
+
+		SyncOnCommit   bool `xorm:"NOT NULL DEFAULT true"`
+		Interval       time.Duration
+		CreatedUnix    timeutil.TimeStamp `xorm:"created"`
+		LastUpdateUnix timeutil.TimeStamp `xorm:"INDEX last_update"`
+		LastError      string             `xorm:"text"`
+	}
+
+	return x.Sync2(new(PushMirror))
+}