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// 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 (
"context"
"fmt"
activities_model "code.gitea.io/gitea/models/activities"
issues_model "code.gitea.io/gitea/models/issues"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
func fallbackMailSubject(issue *issues_model.Issue) string {
return fmt.Sprintf("[%s] %s (#%d)", issue.Repo.FullName(), issue.Title, issue.Index)
}
type mailCommentContext struct {
context.Context
Issue *issues_model.Issue
Doer *user_model.User
ActionType activities_model.ActionType
Content string
Comment *issues_model.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 (except for WIP pull requests) 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 []*user_model.User) error {
// Required by the mail composer; make sure to load these before calling the async function
if err := ctx.Issue.LoadRepo(ctx); 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 := issues_model.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 = issues_model.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 = issues_model.GetIssueWatchersIDs(ctx, 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
if !(ctx.Issue.IsPull && ctx.Issue.PullRequest.IsWorkInProgress() && ctx.ActionType != activities_model.ActionCreatePullRequest) {
ids, err = repo_model.GetRepoWatchersIDs(ctx, 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
if ctx.Doer.EmailNotificationsPreference != user_model.EmailNotificationsAndYourOwn {
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 = issues_model.GetIssueWatchersIDs(ctx, 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 := user_model.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 []*user_model.User, visited map[int64]bool, fromMention bool) error {
checkUnit := unit.TypeIssues
if ctx.Issue.IsPull {
checkUnit = unit.TypePullRequests
}
langMap := make(map[string][]*user_model.User)
for _, user := range users {
if !user.IsActive {
// Exclude deactivated users
continue
}
// 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 == user_model.EmailNotificationsEnabled ||
user.EmailNotificationsPreference == user_model.EmailNotificationsAndYourOwn ||
fromMention && user.EmailNotificationsPreference == user_model.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 !access_model.CheckRepoUnitUser(ctx, ctx.Issue.Repo, user, checkUnit) {
continue
}
langMap[user.Language] = append(langMap[user.Language], user)
}
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 *issues_model.Issue, doer *user_model.User, opType activities_model.ActionType, mentions []*user_model.User) error {
if setting.MailService == nil {
// No mail service configured
return nil
}
content := issue.Content
if opType == activities_model.ActionCloseIssue || opType == activities_model.ActionClosePullRequest ||
opType == activities_model.ActionReopenIssue || opType == activities_model.ActionReopenPullRequest ||
opType == activities_model.ActionMergePullRequest {
content = ""
}
if err := mailIssueCommentToParticipants(
&mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue,
Doer: doer,
ActionType: opType,
Content: content,
Comment: nil,
}, mentions); err != nil {
log.Error("mailIssueCommentToParticipants: %v", err)
}
return nil
}
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