159 lines
3.2 KiB
Go
159 lines
3.2 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package migrations
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import (
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"code.gitea.io/gitea/modules/setting"
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"github.com/go-xorm/xorm"
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)
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func removeStaleWatches(x *xorm.Engine) error {
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type Watch struct {
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ID int64
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UserID int64
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RepoID int64
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}
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type IssueWatch struct {
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ID int64
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UserID int64
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RepoID int64
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IsWatching bool
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}
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type Repository struct {
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ID int64
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IsPrivate bool
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OwnerID int64
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}
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type Access struct {
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UserID int64
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RepoID int64
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Mode int
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}
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const (
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// AccessModeNone no access
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AccessModeNone int = iota // 0
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// AccessModeRead read access
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AccessModeRead // 1
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)
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accessLevel := func(userID int64, repo *Repository) (int, error) {
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mode := AccessModeNone
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if !repo.IsPrivate {
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mode = AccessModeRead
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}
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if userID == 0 {
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return mode, nil
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}
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if userID == repo.OwnerID {
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return 4, nil
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}
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a := &Access{UserID: userID, RepoID: repo.ID}
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if has, err := x.Get(a); !has || err != nil {
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return mode, err
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}
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return a.Mode, nil
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}
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sess := x.NewSession()
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defer sess.Close()
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if err := sess.Begin(); err != nil {
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return err
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}
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repoCache := make(map[int64]*Repository)
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err := x.BufferSize(setting.IterateBufferSize).Iterate(new(Watch),
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func(idx int, bean interface{}) error {
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watch := bean.(*Watch)
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repo := repoCache[watch.RepoID]
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if repo == nil {
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repo = &Repository{
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ID: watch.RepoID,
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}
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if _, err := x.Get(repo); err != nil {
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return err
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}
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repoCache[watch.RepoID] = repo
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}
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// Remove watches from now unaccessible repositories
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mode, err := accessLevel(watch.UserID, repo)
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if err != nil {
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return err
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}
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has := AccessModeRead <= mode
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if has {
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return nil
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}
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if _, err = sess.Delete(&Watch{0, watch.UserID, repo.ID}); err != nil {
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return err
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}
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_, err = sess.Exec("UPDATE `repository` SET num_watches = num_watches - 1 WHERE id = ?", repo.ID)
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return err
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})
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if err != nil {
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return err
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}
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repoCache = make(map[int64]*Repository)
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err = x.BufferSize(setting.IterateBufferSize).
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Distinct("issue_watch.user_id", "issue.repo_id").
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Join("INNER", "issue", "issue_watch.issue_id = issue.id").
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Where("issue_watch.is_watching = ?", true).
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Iterate(new(IssueWatch),
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func(idx int, bean interface{}) error {
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watch := bean.(*IssueWatch)
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repo := repoCache[watch.RepoID]
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if repo == nil {
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repo = &Repository{
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ID: watch.RepoID,
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}
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if _, err := x.Get(repo); err != nil {
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return err
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}
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repoCache[watch.RepoID] = repo
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}
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// Remove issue watches from now unaccssible repositories
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mode, err := accessLevel(watch.UserID, repo)
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if err != nil {
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return err
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}
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has := AccessModeRead <= mode
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if has {
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return nil
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}
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iw := &IssueWatch{
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IsWatching: false,
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}
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_, err = sess.
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Join("INNER", "issue", "`issue`.id = `issue_watch`.issue_id AND `issue`.repo_id = ?", watch.RepoID).
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Cols("is_watching", "updated_unix").
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Where("`issue_watch`.user_id = ?", watch.UserID).
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Update(iw)
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return err
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})
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if err != nil {
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return err
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}
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return sess.Commit()
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}
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