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forgejo/services/actions/notifier.go
Lunny Xiao bd820aa9c5
Add context cache as a request level cache (#22294)
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.

But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.

The core context cache is here. It defines a new context
```go
type cacheContext struct {
	ctx  context.Context
	data map[any]map[any]any
        lock sync.RWMutex
}

var cacheContextKey = struct{}{}

func WithCacheContext(ctx context.Context) context.Context {
	return context.WithValue(ctx, cacheContextKey, &cacheContext{
		ctx:  ctx,
		data: make(map[any]map[any]any),
	})
}
```

Then you can use the below 4 methods to read/write/del the data within
the same context.

```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```

Then let's take a look at how `system.GetString` implement it.

```go
func GetSetting(ctx context.Context, key string) (string, error) {
	return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
		return cache.GetString(genSettingCacheKey(key), func() (string, error) {
			res, err := GetSettingNoCache(ctx, key)
			if err != nil {
				return "", err
			}
			return res.SettingValue, nil
		})
	})
}
```

First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.

An object stored in the context cache will only be destroyed after the
context disappeared.
2023-02-15 21:37:34 +08:00

528 lines
18 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package actions
import (
"context"
"code.gitea.io/gitea/models/db"
issues_model "code.gitea.io/gitea/models/issues"
packages_model "code.gitea.io/gitea/models/packages"
perm_model "code.gitea.io/gitea/models/perm"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification/base"
"code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
webhook_module "code.gitea.io/gitea/modules/webhook"
"code.gitea.io/gitea/services/convert"
)
type actionsNotifier struct {
base.NullNotifier
}
var _ base.Notifier = &actionsNotifier{}
// NewNotifier create a new actionsNotifier notifier
func NewNotifier() base.Notifier {
return &actionsNotifier{}
}
// NotifyNewIssue notifies issue created event
func (n *actionsNotifier) NotifyNewIssue(ctx context.Context, issue *issues_model.Issue, _ []*user_model.User) {
ctx = withMethod(ctx, "NotifyNewIssue")
if err := issue.LoadRepo(ctx); err != nil {
log.Error("issue.LoadRepo: %v", err)
return
}
if err := issue.LoadPoster(ctx); err != nil {
log.Error("issue.LoadPoster: %v", err)
return
}
mode, _ := access_model.AccessLevel(ctx, issue.Poster, issue.Repo)
newNotifyInputFromIssue(issue, webhook_module.HookEventIssues).WithPayload(&api.IssuePayload{
Action: api.HookIssueOpened,
Index: issue.Index,
Issue: convert.ToAPIIssue(ctx, issue),
Repository: convert.ToRepo(ctx, issue.Repo, mode),
Sender: convert.ToUser(ctx, issue.Poster, nil),
}).Notify(withMethod(ctx, "NotifyNewIssue"))
}
// NotifyIssueChangeStatus notifies close or reopen issue to notifiers
func (n *actionsNotifier) NotifyIssueChangeStatus(ctx context.Context, doer *user_model.User, commitID string, issue *issues_model.Issue, _ *issues_model.Comment, isClosed bool) {
ctx = withMethod(ctx, "NotifyIssueChangeStatus")
mode, _ := access_model.AccessLevel(ctx, issue.Poster, issue.Repo)
if issue.IsPull {
if err := issue.LoadPullRequest(ctx); err != nil {
log.Error("LoadPullRequest: %v", err)
return
}
// Merge pull request calls issue.changeStatus so we need to handle separately.
apiPullRequest := &api.PullRequestPayload{
Index: issue.Index,
PullRequest: convert.ToAPIPullRequest(db.DefaultContext, issue.PullRequest, nil),
Repository: convert.ToRepo(ctx, issue.Repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
CommitID: commitID,
}
if isClosed {
apiPullRequest.Action = api.HookIssueClosed
} else {
apiPullRequest.Action = api.HookIssueReOpened
}
newNotifyInputFromIssue(issue, webhook_module.HookEventPullRequest).
WithDoer(doer).
WithPayload(apiPullRequest).
Notify(ctx)
return
}
apiIssue := &api.IssuePayload{
Index: issue.Index,
Issue: convert.ToAPIIssue(ctx, issue),
Repository: convert.ToRepo(ctx, issue.Repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
}
if isClosed {
apiIssue.Action = api.HookIssueClosed
} else {
apiIssue.Action = api.HookIssueReOpened
}
newNotifyInputFromIssue(issue, webhook_module.HookEventIssues).
WithDoer(doer).
WithPayload(apiIssue).
Notify(ctx)
}
func (n *actionsNotifier) NotifyIssueChangeLabels(ctx context.Context, doer *user_model.User, issue *issues_model.Issue,
_, _ []*issues_model.Label,
) {
ctx = withMethod(ctx, "NotifyIssueChangeLabels")
var err error
if err = issue.LoadRepo(ctx); err != nil {
log.Error("LoadRepo: %v", err)
return
}
if err = issue.LoadPoster(ctx); err != nil {
log.Error("LoadPoster: %v", err)
return
}
mode, _ := access_model.AccessLevel(ctx, issue.Poster, issue.Repo)
if issue.IsPull {
if err = issue.LoadPullRequest(ctx); err != nil {
log.Error("loadPullRequest: %v", err)
return
}
if err = issue.PullRequest.LoadIssue(ctx); err != nil {
log.Error("LoadIssue: %v", err)
return
}
newNotifyInputFromIssue(issue, webhook_module.HookEventPullRequestLabel).
WithDoer(doer).
WithPayload(&api.PullRequestPayload{
Action: api.HookIssueLabelUpdated,
Index: issue.Index,
PullRequest: convert.ToAPIPullRequest(ctx, issue.PullRequest, nil),
Repository: convert.ToRepo(ctx, issue.Repo, perm_model.AccessModeNone),
Sender: convert.ToUser(ctx, doer, nil),
}).
Notify(ctx)
return
}
newNotifyInputFromIssue(issue, webhook_module.HookEventIssueLabel).
WithDoer(doer).
WithPayload(&api.IssuePayload{
Action: api.HookIssueLabelUpdated,
Index: issue.Index,
Issue: convert.ToAPIIssue(ctx, issue),
Repository: convert.ToRepo(ctx, issue.Repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
}).
Notify(ctx)
}
// NotifyCreateIssueComment notifies comment on an issue to notifiers
func (n *actionsNotifier) NotifyCreateIssueComment(ctx context.Context, doer *user_model.User, repo *repo_model.Repository,
issue *issues_model.Issue, comment *issues_model.Comment, _ []*user_model.User,
) {
ctx = withMethod(ctx, "NotifyCreateIssueComment")
mode, _ := access_model.AccessLevel(ctx, doer, repo)
if issue.IsPull {
newNotifyInputFromIssue(issue, webhook_module.HookEventPullRequestComment).
WithDoer(doer).
WithPayload(&api.IssueCommentPayload{
Action: api.HookIssueCommentCreated,
Issue: convert.ToAPIIssue(ctx, issue),
Comment: convert.ToComment(ctx, comment),
Repository: convert.ToRepo(ctx, repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
IsPull: true,
}).
Notify(ctx)
return
}
newNotifyInputFromIssue(issue, webhook_module.HookEventIssueComment).
WithDoer(doer).
WithPayload(&api.IssueCommentPayload{
Action: api.HookIssueCommentCreated,
Issue: convert.ToAPIIssue(ctx, issue),
Comment: convert.ToComment(ctx, comment),
Repository: convert.ToRepo(ctx, repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
IsPull: false,
}).
Notify(ctx)
}
func (n *actionsNotifier) NotifyNewPullRequest(ctx context.Context, pull *issues_model.PullRequest, _ []*user_model.User) {
ctx = withMethod(ctx, "NotifyNewPullRequest")
if err := pull.LoadIssue(ctx); err != nil {
log.Error("pull.LoadIssue: %v", err)
return
}
if err := pull.Issue.LoadRepo(ctx); err != nil {
log.Error("pull.Issue.LoadRepo: %v", err)
return
}
if err := pull.Issue.LoadPoster(ctx); err != nil {
log.Error("pull.Issue.LoadPoster: %v", err)
return
}
mode, _ := access_model.AccessLevel(ctx, pull.Issue.Poster, pull.Issue.Repo)
newNotifyInputFromIssue(pull.Issue, webhook_module.HookEventPullRequest).
WithPayload(&api.PullRequestPayload{
Action: api.HookIssueOpened,
Index: pull.Issue.Index,
PullRequest: convert.ToAPIPullRequest(ctx, pull, nil),
Repository: convert.ToRepo(ctx, pull.Issue.Repo, mode),
Sender: convert.ToUser(ctx, pull.Issue.Poster, nil),
}).
WithPullRequest(pull).
Notify(ctx)
}
func (n *actionsNotifier) NotifyCreateRepository(ctx context.Context, doer, u *user_model.User, repo *repo_model.Repository) {
ctx = withMethod(ctx, "NotifyCreateRepository")
newNotifyInput(repo, doer, webhook_module.HookEventRepository).WithPayload(&api.RepositoryPayload{
Action: api.HookRepoCreated,
Repository: convert.ToRepo(ctx, repo, perm_model.AccessModeOwner),
Organization: convert.ToUser(ctx, u, nil),
Sender: convert.ToUser(ctx, doer, nil),
}).Notify(ctx)
}
func (n *actionsNotifier) NotifyForkRepository(ctx context.Context, doer *user_model.User, oldRepo, repo *repo_model.Repository) {
ctx = withMethod(ctx, "NotifyForkRepository")
oldMode, _ := access_model.AccessLevel(ctx, doer, oldRepo)
mode, _ := access_model.AccessLevel(ctx, doer, repo)
// forked webhook
newNotifyInput(oldRepo, doer, webhook_module.HookEventFork).WithPayload(&api.ForkPayload{
Forkee: convert.ToRepo(ctx, oldRepo, oldMode),
Repo: convert.ToRepo(ctx, repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
}).Notify(ctx)
u := repo.MustOwner(ctx)
// Add to hook queue for created repo after session commit.
if u.IsOrganization() {
newNotifyInput(repo, doer, webhook_module.HookEventRepository).
WithRef(oldRepo.DefaultBranch).
WithPayload(&api.RepositoryPayload{
Action: api.HookRepoCreated,
Repository: convert.ToRepo(ctx, repo, perm_model.AccessModeOwner),
Organization: convert.ToUser(ctx, u, nil),
Sender: convert.ToUser(ctx, doer, nil),
}).Notify(ctx)
}
}
func (n *actionsNotifier) NotifyPullRequestReview(ctx context.Context, pr *issues_model.PullRequest, review *issues_model.Review, _ *issues_model.Comment, _ []*user_model.User) {
ctx = withMethod(ctx, "NotifyPullRequestReview")
var reviewHookType webhook_module.HookEventType
switch review.Type {
case issues_model.ReviewTypeApprove:
reviewHookType = webhook_module.HookEventPullRequestReviewApproved
case issues_model.ReviewTypeComment:
reviewHookType = webhook_module.HookEventPullRequestComment
case issues_model.ReviewTypeReject:
reviewHookType = webhook_module.HookEventPullRequestReviewRejected
default:
// unsupported review webhook type here
log.Error("Unsupported review webhook type")
return
}
if err := pr.LoadIssue(ctx); err != nil {
log.Error("pr.LoadIssue: %v", err)
return
}
mode, err := access_model.AccessLevel(ctx, review.Issue.Poster, review.Issue.Repo)
if err != nil {
log.Error("models.AccessLevel: %v", err)
return
}
newNotifyInput(review.Issue.Repo, review.Reviewer, reviewHookType).
WithRef(review.CommitID).
WithPayload(&api.PullRequestPayload{
Action: api.HookIssueReviewed,
Index: review.Issue.Index,
PullRequest: convert.ToAPIPullRequest(db.DefaultContext, pr, nil),
Repository: convert.ToRepo(ctx, review.Issue.Repo, mode),
Sender: convert.ToUser(ctx, review.Reviewer, nil),
Review: &api.ReviewPayload{
Type: string(reviewHookType),
Content: review.Content,
},
}).Notify(ctx)
}
func (*actionsNotifier) NotifyMergePullRequest(ctx context.Context, doer *user_model.User, pr *issues_model.PullRequest) {
ctx = withMethod(ctx, "NotifyMergePullRequest")
// Reload pull request information.
if err := pr.LoadAttributes(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
if err := pr.LoadIssue(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
if err := pr.Issue.LoadRepo(db.DefaultContext); err != nil {
log.Error("pr.Issue.LoadRepo: %v", err)
return
}
mode, err := access_model.AccessLevel(ctx, doer, pr.Issue.Repo)
if err != nil {
log.Error("models.AccessLevel: %v", err)
return
}
// Merge pull request calls issue.changeStatus so we need to handle separately.
apiPullRequest := &api.PullRequestPayload{
Index: pr.Issue.Index,
PullRequest: convert.ToAPIPullRequest(db.DefaultContext, pr, nil),
Repository: convert.ToRepo(ctx, pr.Issue.Repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
Action: api.HookIssueClosed,
}
newNotifyInput(pr.Issue.Repo, doer, webhook_module.HookEventPullRequest).
WithRef(pr.MergedCommitID).
WithPayload(apiPullRequest).
WithPullRequest(pr).
Notify(ctx)
}
func (n *actionsNotifier) NotifyPushCommits(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, opts *repository.PushUpdateOptions, commits *repository.PushCommits) {
ctx = withMethod(ctx, "NotifyPushCommits")
apiPusher := convert.ToUser(ctx, pusher, nil)
apiCommits, apiHeadCommit, err := commits.ToAPIPayloadCommits(ctx, repo.RepoPath(), repo.HTMLURL())
if err != nil {
log.Error("commits.ToAPIPayloadCommits failed: %v", err)
return
}
newNotifyInput(repo, pusher, webhook_module.HookEventPush).
WithRef(opts.RefFullName).
WithPayload(&api.PushPayload{
Ref: opts.RefFullName,
Before: opts.OldCommitID,
After: opts.NewCommitID,
CompareURL: setting.AppURL + commits.CompareURL,
Commits: apiCommits,
HeadCommit: apiHeadCommit,
Repo: convert.ToRepo(ctx, repo, perm_model.AccessModeOwner),
Pusher: apiPusher,
Sender: apiPusher,
}).
Notify(ctx)
}
func (n *actionsNotifier) NotifyCreateRef(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, refType, refFullName, refID string) {
ctx = withMethod(ctx, "NotifyCreateRef")
apiPusher := convert.ToUser(ctx, pusher, nil)
apiRepo := convert.ToRepo(ctx, repo, perm_model.AccessModeNone)
refName := git.RefEndName(refFullName)
newNotifyInput(repo, pusher, webhook_module.HookEventCreate).
WithRef(refName).
WithPayload(&api.CreatePayload{
Ref: refName,
Sha: refID,
RefType: refType,
Repo: apiRepo,
Sender: apiPusher,
}).
Notify(ctx)
}
func (n *actionsNotifier) NotifyDeleteRef(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, refType, refFullName string) {
ctx = withMethod(ctx, "NotifyDeleteRef")
apiPusher := convert.ToUser(ctx, pusher, nil)
apiRepo := convert.ToRepo(ctx, repo, perm_model.AccessModeNone)
refName := git.RefEndName(refFullName)
newNotifyInput(repo, pusher, webhook_module.HookEventDelete).
WithRef(refName).
WithPayload(&api.DeletePayload{
Ref: refName,
RefType: refType,
PusherType: api.PusherTypeUser,
Repo: apiRepo,
Sender: apiPusher,
}).
Notify(ctx)
}
func (n *actionsNotifier) NotifySyncPushCommits(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, opts *repository.PushUpdateOptions, commits *repository.PushCommits) {
ctx = withMethod(ctx, "NotifySyncPushCommits")
apiPusher := convert.ToUser(ctx, pusher, nil)
apiCommits, apiHeadCommit, err := commits.ToAPIPayloadCommits(db.DefaultContext, repo.RepoPath(), repo.HTMLURL())
if err != nil {
log.Error("commits.ToAPIPayloadCommits failed: %v", err)
return
}
newNotifyInput(repo, pusher, webhook_module.HookEventPush).
WithRef(opts.RefFullName).
WithPayload(&api.PushPayload{
Ref: opts.RefFullName,
Before: opts.OldCommitID,
After: opts.NewCommitID,
CompareURL: setting.AppURL + commits.CompareURL,
Commits: apiCommits,
TotalCommits: commits.Len,
HeadCommit: apiHeadCommit,
Repo: convert.ToRepo(ctx, repo, perm_model.AccessModeOwner),
Pusher: apiPusher,
Sender: apiPusher,
}).
Notify(ctx)
}
func (n *actionsNotifier) NotifySyncCreateRef(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, refType, refFullName, refID string) {
ctx = withMethod(ctx, "NotifySyncCreateRef")
n.NotifyCreateRef(ctx, pusher, repo, refType, refFullName, refID)
}
func (n *actionsNotifier) NotifySyncDeleteRef(ctx context.Context, pusher *user_model.User, repo *repo_model.Repository, refType, refFullName string) {
ctx = withMethod(ctx, "NotifySyncDeleteRef")
n.NotifyDeleteRef(ctx, pusher, repo, refType, refFullName)
}
func (n *actionsNotifier) NotifyNewRelease(ctx context.Context, rel *repo_model.Release) {
ctx = withMethod(ctx, "NotifyNewRelease")
notifyRelease(ctx, rel.Publisher, rel, rel.Sha1, api.HookReleasePublished)
}
func (n *actionsNotifier) NotifyUpdateRelease(ctx context.Context, doer *user_model.User, rel *repo_model.Release) {
ctx = withMethod(ctx, "NotifyUpdateRelease")
notifyRelease(ctx, doer, rel, rel.Sha1, api.HookReleaseUpdated)
}
func (n *actionsNotifier) NotifyDeleteRelease(ctx context.Context, doer *user_model.User, rel *repo_model.Release) {
ctx = withMethod(ctx, "NotifyDeleteRelease")
notifyRelease(ctx, doer, rel, rel.Sha1, api.HookReleaseDeleted)
}
func (n *actionsNotifier) NotifyPackageCreate(ctx context.Context, doer *user_model.User, pd *packages_model.PackageDescriptor) {
ctx = withMethod(ctx, "NotifyPackageCreate")
notifyPackage(ctx, doer, pd, api.HookPackageCreated)
}
func (n *actionsNotifier) NotifyPackageDelete(ctx context.Context, doer *user_model.User, pd *packages_model.PackageDescriptor) {
ctx = withMethod(ctx, "NotifyPackageDelete")
notifyPackage(ctx, doer, pd, api.HookPackageDeleted)
}
func (n *actionsNotifier) NotifyAutoMergePullRequest(ctx context.Context, doer *user_model.User, pr *issues_model.PullRequest) {
ctx = withMethod(ctx, "NotifyAutoMergePullRequest")
n.NotifyMergePullRequest(ctx, doer, pr)
}
func (n *actionsNotifier) NotifyPullRequestSynchronized(ctx context.Context, doer *user_model.User, pr *issues_model.PullRequest) {
ctx = withMethod(ctx, "NotifyPullRequestSynchronized")
if err := pr.LoadIssue(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
if err := pr.Issue.LoadRepo(db.DefaultContext); err != nil {
log.Error("pr.Issue.LoadRepo: %v", err)
return
}
newNotifyInput(pr.Issue.Repo, doer, webhook_module.HookEventPullRequestSync).
WithPayload(&api.PullRequestPayload{
Action: api.HookIssueSynchronized,
Index: pr.Issue.Index,
PullRequest: convert.ToAPIPullRequest(ctx, pr, nil),
Repository: convert.ToRepo(ctx, pr.Issue.Repo, perm_model.AccessModeNone),
Sender: convert.ToUser(ctx, doer, nil),
}).
WithPullRequest(pr).
Notify(ctx)
}
func (n *actionsNotifier) NotifyPullRequestChangeTargetBranch(ctx context.Context, doer *user_model.User, pr *issues_model.PullRequest, oldBranch string) {
ctx = withMethod(ctx, "NotifyPullRequestChangeTargetBranch")
if err := pr.LoadIssue(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
if err := pr.Issue.LoadRepo(db.DefaultContext); err != nil {
log.Error("pr.Issue.LoadRepo: %v", err)
return
}
mode, _ := access_model.AccessLevel(ctx, pr.Issue.Poster, pr.Issue.Repo)
newNotifyInput(pr.Issue.Repo, doer, webhook_module.HookEventPullRequest).
WithPayload(&api.PullRequestPayload{
Action: api.HookIssueEdited,
Index: pr.Issue.Index,
Changes: &api.ChangesPayload{
Ref: &api.ChangesFromPayload{
From: oldBranch,
},
},
PullRequest: convert.ToAPIPullRequest(ctx, pr, nil),
Repository: convert.ToRepo(ctx, pr.Issue.Repo, mode),
Sender: convert.ToUser(ctx, doer, nil),
}).
WithPullRequest(pr).
Notify(ctx)
}