forgejo/services/mailer/mail_issue.go
Lunny Xiao 9d99f6ab19
Refactor renders (#15175)
* Refactor renders

* Some performance optimization

* Fix comment

* Transform reader

* Fix csv test

* Fix test

* Fix tests

* Improve optimaziation

* Fix test

* Fix test

* Detect file encoding with reader

* Improve optimaziation

* reduce memory usage

* improve code

* fix build

* Fix test

* Fix for go1.15

* Fix render

* Fix comment

* Fix lint

* Fix test

* Don't use NormalEOF when unnecessary

* revert change on util.go

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* rename function

* Take NormalEOF back

Co-authored-by: zeripath <art27@cantab.net>
2021-04-19 18:25:08 -04:00

176 lines
5.4 KiB
Go

// Copyright 2019 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 mailer
import (
"fmt"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
)
func fallbackMailSubject(issue *models.Issue) string {
return fmt.Sprintf("[%s] %s (#%d)", issue.Repo.FullName(), issue.Title, issue.Index)
}
type mailCommentContext struct {
Issue *models.Issue
Doer *models.User
ActionType models.ActionType
Content string
Comment *models.Comment
}
const (
// MailBatchSize set the batch size used in mailIssueCommentBatch
MailBatchSize = 100
)
// mailIssueCommentToParticipants can be used for both new issue creation and comment.
// This function sends two list of emails:
// 1. Repository watchers and users who are participated in comments.
// 2. Users who are not in 1. but get mentioned in current issue/comment.
func mailIssueCommentToParticipants(ctx *mailCommentContext, mentions []*models.User) error {
// Required by the mail composer; make sure to load these before calling the async function
if err := ctx.Issue.LoadRepo(); err != nil {
return fmt.Errorf("LoadRepo(): %v", err)
}
if err := ctx.Issue.LoadPoster(); err != nil {
return fmt.Errorf("LoadPoster(): %v", err)
}
if err := ctx.Issue.LoadPullRequest(); err != nil {
return fmt.Errorf("LoadPullRequest(): %v", err)
}
// Enough room to avoid reallocations
unfiltered := make([]int64, 1, 64)
// =========== Original poster ===========
unfiltered[0] = ctx.Issue.PosterID
// =========== Assignees ===========
ids, err := models.GetAssigneeIDsByIssue(ctx.Issue.ID)
if err != nil {
return fmt.Errorf("GetAssigneeIDsByIssue(%d): %v", ctx.Issue.ID, err)
}
unfiltered = append(unfiltered, ids...)
// =========== Participants (i.e. commenters, reviewers) ===========
ids, err = models.GetParticipantsIDsByIssueID(ctx.Issue.ID)
if err != nil {
return fmt.Errorf("GetParticipantsIDsByIssueID(%d): %v", ctx.Issue.ID, err)
}
unfiltered = append(unfiltered, ids...)
// =========== Issue watchers ===========
ids, err = models.GetIssueWatchersIDs(ctx.Issue.ID, true)
if err != nil {
return fmt.Errorf("GetIssueWatchersIDs(%d): %v", ctx.Issue.ID, err)
}
unfiltered = append(unfiltered, ids...)
// =========== Repo watchers ===========
// Make repo watchers last, since it's likely the list with the most users
ids, err = models.GetRepoWatchersIDs(ctx.Issue.RepoID)
if err != nil {
return fmt.Errorf("GetRepoWatchersIDs(%d): %v", ctx.Issue.RepoID, err)
}
unfiltered = append(ids, unfiltered...)
visited := make(map[int64]bool, len(unfiltered)+len(mentions)+1)
// Avoid mailing the doer
visited[ctx.Doer.ID] = true
// =========== Mentions ===========
if err = mailIssueCommentBatch(ctx, mentions, visited, true); err != nil {
return fmt.Errorf("mailIssueCommentBatch() mentions: %v", err)
}
// Avoid mailing explicit unwatched
ids, err = models.GetIssueWatchersIDs(ctx.Issue.ID, false)
if err != nil {
return fmt.Errorf("GetIssueWatchersIDs(%d): %v", ctx.Issue.ID, err)
}
for _, i := range ids {
visited[i] = true
}
unfilteredUsers, err := models.GetMaileableUsersByIDs(unfiltered, false)
if err != nil {
return err
}
if err = mailIssueCommentBatch(ctx, unfilteredUsers, visited, false); err != nil {
return fmt.Errorf("mailIssueCommentBatch(): %v", err)
}
return nil
}
func mailIssueCommentBatch(ctx *mailCommentContext, users []*models.User, visited map[int64]bool, fromMention bool) error {
checkUnit := models.UnitTypeIssues
if ctx.Issue.IsPull {
checkUnit = models.UnitTypePullRequests
}
langMap := make(map[string][]string)
for _, user := range users {
// At this point we exclude:
// user that don't have all mails enabled or users only get mail on mention and this is one ...
if !(user.EmailNotificationsPreference == models.EmailNotificationsEnabled ||
fromMention && user.EmailNotificationsPreference == models.EmailNotificationsOnMention) {
continue
}
// if we have already visited this user we exclude them
if _, ok := visited[user.ID]; ok {
continue
}
// now mark them as visited
visited[user.ID] = true
// test if this user is allowed to see the issue/pull
if !ctx.Issue.Repo.CheckUnitUser(user, checkUnit) {
continue
}
langMap[user.Language] = append(langMap[user.Language], user.Email)
}
for lang, receivers := range langMap {
// because we know that the len(receivers) > 0 and we don't care about the order particularly
// working backwards from the last (possibly) incomplete batch. If len(receivers) can be 0 this
// starting condition will need to be changed slightly
for i := ((len(receivers) - 1) / MailBatchSize) * MailBatchSize; i >= 0; i -= MailBatchSize {
msgs, err := composeIssueCommentMessages(ctx, lang, receivers[i:], fromMention, "issue comments")
if err != nil {
return err
}
SendAsyncs(msgs)
receivers = receivers[:i]
}
}
return nil
}
// MailParticipants sends new issue thread created emails to repository watchers
// and mentioned people.
func MailParticipants(issue *models.Issue, doer *models.User, opType models.ActionType, mentions []*models.User) error {
if err := mailIssueCommentToParticipants(
&mailCommentContext{
Issue: issue,
Doer: doer,
ActionType: opType,
Content: issue.Content,
Comment: nil,
}, mentions); err != nil {
log.Error("mailIssueCommentToParticipants: %v", err)
}
return nil
}