gitea/models/repo_watch.go
zeripath 9302eba971
DBContext is just a Context (#17100)
* DBContext is just a Context

This PR removes some of the specialness from the DBContext and makes it context
This allows us to simplify the GetEngine code to wrap around any context in future
and means that we can change our loadRepo(e Engine) functions to simply take contexts.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix unit tests

Signed-off-by: Andrew Thornton <art27@cantab.net>

* another place that needs to set the initial context

Signed-off-by: Andrew Thornton <art27@cantab.net>

* avoid race

Signed-off-by: Andrew Thornton <art27@cantab.net>

* change attachment error

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-09-23 23:45:36 +08:00

323 lines
8.9 KiB
Go

// Copyright 2017 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 models
import (
"fmt"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
)
// RepoWatchMode specifies what kind of watch the user has on a repository
type RepoWatchMode int8
const (
// RepoWatchModeNone don't watch
RepoWatchModeNone RepoWatchMode = iota // 0
// RepoWatchModeNormal watch repository (from other sources)
RepoWatchModeNormal // 1
// RepoWatchModeDont explicit don't auto-watch
RepoWatchModeDont // 2
// RepoWatchModeAuto watch repository (from AutoWatchOnChanges)
RepoWatchModeAuto // 3
)
// Watch is connection request for receiving repository notification.
type Watch struct {
ID int64 `xorm:"pk autoincr"`
UserID int64 `xorm:"UNIQUE(watch)"`
RepoID int64 `xorm:"UNIQUE(watch)"`
Mode RepoWatchMode `xorm:"SMALLINT NOT NULL DEFAULT 1"`
CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
}
func init() {
db.RegisterModel(new(Watch))
}
// getWatch gets what kind of subscription a user has on a given repository; returns dummy record if none found
func getWatch(e db.Engine, userID, repoID int64) (Watch, error) {
watch := Watch{UserID: userID, RepoID: repoID}
has, err := e.Get(&watch)
if err != nil {
return watch, err
}
if !has {
watch.Mode = RepoWatchModeNone
}
return watch, nil
}
// Decodes watchability of RepoWatchMode
func isWatchMode(mode RepoWatchMode) bool {
return mode != RepoWatchModeNone && mode != RepoWatchModeDont
}
// IsWatching checks if user has watched given repository.
func IsWatching(userID, repoID int64) bool {
watch, err := getWatch(db.GetEngine(db.DefaultContext), userID, repoID)
return err == nil && isWatchMode(watch.Mode)
}
func watchRepoMode(e db.Engine, watch Watch, mode RepoWatchMode) (err error) {
if watch.Mode == mode {
return nil
}
if mode == RepoWatchModeAuto && (watch.Mode == RepoWatchModeDont || isWatchMode(watch.Mode)) {
// Don't auto watch if already watching or deliberately not watching
return nil
}
hadrec := watch.Mode != RepoWatchModeNone
needsrec := mode != RepoWatchModeNone
repodiff := 0
if isWatchMode(mode) && !isWatchMode(watch.Mode) {
repodiff = 1
} else if !isWatchMode(mode) && isWatchMode(watch.Mode) {
repodiff = -1
}
watch.Mode = mode
if !hadrec && needsrec {
watch.Mode = mode
if _, err = e.Insert(watch); err != nil {
return err
}
} else if needsrec {
watch.Mode = mode
if _, err := e.ID(watch.ID).AllCols().Update(watch); err != nil {
return err
}
} else if _, err = e.Delete(Watch{ID: watch.ID}); err != nil {
return err
}
if repodiff != 0 {
_, err = e.Exec("UPDATE `repository` SET num_watches = num_watches + ? WHERE id = ?", repodiff, watch.RepoID)
}
return err
}
// WatchRepoMode watch repository in specific mode.
func WatchRepoMode(userID, repoID int64, mode RepoWatchMode) (err error) {
var watch Watch
if watch, err = getWatch(db.GetEngine(db.DefaultContext), userID, repoID); err != nil {
return err
}
return watchRepoMode(db.GetEngine(db.DefaultContext), watch, mode)
}
func watchRepo(e db.Engine, userID, repoID int64, doWatch bool) (err error) {
var watch Watch
if watch, err = getWatch(e, userID, repoID); err != nil {
return err
}
if !doWatch && watch.Mode == RepoWatchModeAuto {
err = watchRepoMode(e, watch, RepoWatchModeDont)
} else if !doWatch {
err = watchRepoMode(e, watch, RepoWatchModeNone)
} else {
err = watchRepoMode(e, watch, RepoWatchModeNormal)
}
return err
}
// WatchRepo watch or unwatch repository.
func WatchRepo(userID, repoID int64, watch bool) (err error) {
return watchRepo(db.GetEngine(db.DefaultContext), userID, repoID, watch)
}
func getWatchers(e db.Engine, repoID int64) ([]*Watch, error) {
watches := make([]*Watch, 0, 10)
return watches, e.Where("`watch`.repo_id=?", repoID).
And("`watch`.mode<>?", RepoWatchModeDont).
And("`user`.is_active=?", true).
And("`user`.prohibit_login=?", false).
Join("INNER", "`user`", "`user`.id = `watch`.user_id").
Find(&watches)
}
// GetWatchers returns all watchers of given repository.
func GetWatchers(repoID int64) ([]*Watch, error) {
return getWatchers(db.GetEngine(db.DefaultContext), repoID)
}
// GetRepoWatchersIDs returns IDs of watchers for a given repo ID
// but avoids joining with `user` for performance reasons
// User permissions must be verified elsewhere if required
func GetRepoWatchersIDs(repoID int64) ([]int64, error) {
return getRepoWatchersIDs(db.GetEngine(db.DefaultContext), repoID)
}
func getRepoWatchersIDs(e db.Engine, repoID int64) ([]int64, error) {
ids := make([]int64, 0, 64)
return ids, e.Table("watch").
Where("watch.repo_id=?", repoID).
And("watch.mode<>?", RepoWatchModeDont).
Select("user_id").
Find(&ids)
}
// GetWatchers returns range of users watching given repository.
func (repo *Repository) GetWatchers(opts ListOptions) ([]*User, error) {
sess := db.GetEngine(db.DefaultContext).Where("watch.repo_id=?", repo.ID).
Join("LEFT", "watch", "`user`.id=`watch`.user_id").
And("`watch`.mode<>?", RepoWatchModeDont)
if opts.Page > 0 {
sess = setSessionPagination(sess, &opts)
users := make([]*User, 0, opts.PageSize)
return users, sess.Find(&users)
}
users := make([]*User, 0, 8)
return users, sess.Find(&users)
}
func notifyWatchers(e db.Engine, actions ...*Action) error {
var watchers []*Watch
var repo *Repository
var err error
var permCode []bool
var permIssue []bool
var permPR []bool
for _, act := range actions {
repoChanged := repo == nil || repo.ID != act.RepoID
if repoChanged {
// Add feeds for user self and all watchers.
watchers, err = getWatchers(e, act.RepoID)
if err != nil {
return fmt.Errorf("get watchers: %v", err)
}
}
// Add feed for actioner.
act.UserID = act.ActUserID
if _, err = e.InsertOne(act); err != nil {
return fmt.Errorf("insert new actioner: %v", err)
}
if repoChanged {
act.loadRepo()
repo = act.Repo
// check repo owner exist.
if err := act.Repo.getOwner(e); err != nil {
return fmt.Errorf("can't get repo owner: %v", err)
}
} else if act.Repo == nil {
act.Repo = repo
}
// Add feed for organization
if act.Repo.Owner.IsOrganization() && act.ActUserID != act.Repo.Owner.ID {
act.ID = 0
act.UserID = act.Repo.Owner.ID
if _, err = e.InsertOne(act); err != nil {
return fmt.Errorf("insert new actioner: %v", err)
}
}
if repoChanged {
permCode = make([]bool, len(watchers))
permIssue = make([]bool, len(watchers))
permPR = make([]bool, len(watchers))
for i, watcher := range watchers {
user, err := getUserByID(e, watcher.UserID)
if err != nil {
permCode[i] = false
permIssue[i] = false
permPR[i] = false
continue
}
perm, err := getUserRepoPermission(e, repo, user)
if err != nil {
permCode[i] = false
permIssue[i] = false
permPR[i] = false
continue
}
permCode[i] = perm.CanRead(UnitTypeCode)
permIssue[i] = perm.CanRead(UnitTypeIssues)
permPR[i] = perm.CanRead(UnitTypePullRequests)
}
}
for i, watcher := range watchers {
if act.ActUserID == watcher.UserID {
continue
}
act.ID = 0
act.UserID = watcher.UserID
act.Repo.Units = nil
switch act.OpType {
case ActionCommitRepo, ActionPushTag, ActionDeleteTag, ActionPublishRelease, ActionDeleteBranch:
if !permCode[i] {
continue
}
case ActionCreateIssue, ActionCommentIssue, ActionCloseIssue, ActionReopenIssue:
if !permIssue[i] {
continue
}
case ActionCreatePullRequest, ActionCommentPull, ActionMergePullRequest, ActionClosePullRequest, ActionReopenPullRequest:
if !permPR[i] {
continue
}
}
if _, err = e.InsertOne(act); err != nil {
return fmt.Errorf("insert new action: %v", err)
}
}
}
return nil
}
// NotifyWatchers creates batch of actions for every watcher.
func NotifyWatchers(actions ...*Action) error {
return notifyWatchers(db.GetEngine(db.DefaultContext), actions...)
}
// NotifyWatchersActions creates batch of actions for every watcher.
func NotifyWatchersActions(acts []*Action) error {
sess := db.NewSession(db.DefaultContext)
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
for _, act := range acts {
if err := notifyWatchers(sess, act); err != nil {
return err
}
}
return sess.Commit()
}
func watchIfAuto(e db.Engine, userID, repoID int64, isWrite bool) error {
if !isWrite || !setting.Service.AutoWatchOnChanges {
return nil
}
watch, err := getWatch(e, userID, repoID)
if err != nil {
return err
}
if watch.Mode != RepoWatchModeNone {
return nil
}
return watchRepoMode(e, watch, RepoWatchModeAuto)
}
// WatchIfAuto subscribes to repo if AutoWatchOnChanges is set
func WatchIfAuto(userID, repoID int64, isWrite bool) error {
return watchIfAuto(db.GetEngine(db.DefaultContext), userID, repoID, isWrite)
}