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// Copyright 2016 The Gogs Authors. All rights reserved.
// 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 (
"bytes"
"fmt"
"html/template"
"mime"
"regexp"
"strconv"
"strings"
texttmpl "text/template"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/emoji"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/templates"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/translation"
"gopkg.in/gomail.v2"
)
const (
mailAuthActivate base.TplName = "auth/activate"
mailAuthActivateEmail base.TplName = "auth/activate_email"
mailAuthResetPassword base.TplName = "auth/reset_passwd"
mailAuthRegisterNotify base.TplName = "auth/register_notify"
mailNotifyCollaborator base.TplName = "notify/collaborator"
mailRepoTransferNotify base.TplName = "notify/repo_transfer"
// There's no actual limit for subject in RFC 5322
mailMaxSubjectRunes = 256
)
var (
bodyTemplates *template.Template
subjectTemplates *texttmpl.Template
subjectRemoveSpaces = regexp.MustCompile(`[\s]+`)
)
// InitMailRender initializes the mail renderer
func InitMailRender(subjectTpl *texttmpl.Template, bodyTpl *template.Template) {
subjectTemplates = subjectTpl
bodyTemplates = bodyTpl
}
// SendTestMail sends a test mail
func SendTestMail(email string) error {
return gomail.Send(Sender, NewMessage([]string{email}, "Gitea Test Email!", "Gitea Test Email!").ToMessage())
}
// sendUserMail sends a mail to the user
func sendUserMail(language string, u *models.User, tpl base.TplName, code, subject, info string) {
locale := translation.NewLocale(language)
data := map[string]interface{}{
"DisplayName": u.DisplayName(),
"ActiveCodeLives": timeutil.MinutesToFriendly(setting.Service.ActiveCodeLives, language),
"ResetPwdCodeLives": timeutil.MinutesToFriendly(setting.Service.ResetPwdCodeLives, language),
"Code": code,
"Language": locale.Language(),
// helper
"i18n": locale,
"Str2html": templates.Str2html,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(tpl), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage([]string{u.Email}, subject, content.String())
msg.Info = fmt.Sprintf("UID: %d, %s", u.ID, info)
SendAsync(msg)
}
// SendActivateAccountMail sends an activation mail to the user (new user registration)
func SendActivateAccountMail(locale translation.Locale, u *models.User) {
sendUserMail(locale.Language(), u, mailAuthActivate, u.GenerateEmailActivateCode(u.Email), locale.Tr("mail.activate_account"), "activate account")
}
// SendResetPasswordMail sends a password reset mail to the user
func SendResetPasswordMail(u *models.User) {
locale := translation.NewLocale(u.Language)
sendUserMail(u.Language, u, mailAuthResetPassword, u.GenerateEmailActivateCode(u.Email), locale.Tr("mail.reset_password"), "recover account")
}
// SendActivateEmailMail sends confirmation email to confirm new email address
func SendActivateEmailMail(u *models.User, email *models.EmailAddress) {
locale := translation.NewLocale(u.Language)
data := map[string]interface{}{
"DisplayName": u.DisplayName(),
"ActiveCodeLives": timeutil.MinutesToFriendly(setting.Service.ActiveCodeLives, locale.Language()),
"Code": u.GenerateEmailActivateCode(email.Email),
"Email": email.Email,
"Language": locale.Language(),
// helper
"i18n": locale,
"Str2html": templates.Str2html,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailAuthActivateEmail), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage([]string{email.Email}, locale.Tr("mail.activate_email"), content.String())
msg.Info = fmt.Sprintf("UID: %d, activate email", u.ID)
SendAsync(msg)
}
// SendRegisterNotifyMail triggers a notify e-mail by admin created a account.
func SendRegisterNotifyMail(u *models.User) {
locale := translation.NewLocale(u.Language)
data := map[string]interface{}{
"DisplayName": u.DisplayName(),
"Username": u.Name,
"Language": locale.Language(),
// helper
"i18n": locale,
"Str2html": templates.Str2html,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailAuthRegisterNotify), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage([]string{u.Email}, locale.Tr("mail.register_notify"), content.String())
msg.Info = fmt.Sprintf("UID: %d, registration notify", u.ID)
SendAsync(msg)
}
// SendCollaboratorMail sends mail notification to new collaborator.
func SendCollaboratorMail(u, doer *models.User, repo *models.Repository) {
locale := translation.NewLocale(u.Language)
repoName := repo.FullName()
subject := locale.Tr("mail.repo.collaborator.added.subject", doer.DisplayName(), repoName)
data := map[string]interface{}{
"Subject": subject,
"RepoName": repoName,
"Link": repo.HTMLURL(),
"Language": locale.Language(),
// helper
"i18n": locale,
"Str2html": templates.Str2html,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailNotifyCollaborator), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage([]string{u.Email}, subject, content.String())
msg.Info = fmt.Sprintf("UID: %d, add collaborator", u.ID)
SendAsync(msg)
}
func composeIssueCommentMessages(ctx *mailCommentContext, lang string, recipients []*models.User, fromMention bool, info string) ([]*Message, error) {
var (
subject string
link string
prefix string
// Fall back subject for bad templates, make sure subject is never empty
fallback string
reviewComments []*models.Comment
)
commentType := models.CommentTypeComment
if ctx.Comment != nil {
commentType = ctx.Comment.Type
link = ctx.Issue.HTMLURL() + "#" + ctx.Comment.HashTag()
} else {
link = ctx.Issue.HTMLURL()
}
reviewType := models.ReviewTypeComment
if ctx.Comment != nil && ctx.Comment.Review != nil {
reviewType = ctx.Comment.Review.Type
}
// This is the body of the new issue or comment, not the mail body
body, err := markdown.RenderString(&markup.RenderContext{
URLPrefix: ctx.Issue.Repo.HTMLURL(),
Metas: ctx.Issue.Repo.ComposeMetas(),
}, ctx.Content)
if err != nil {
return nil, err
}
actType, actName, tplName := actionToTemplate(ctx.Issue, ctx.ActionType, commentType, reviewType)
if actName != "new" {
prefix = "Re: "
}
fallback = prefix + fallbackMailSubject(ctx.Issue)
if ctx.Comment != nil && ctx.Comment.Review != nil {
reviewComments = make([]*models.Comment, 0, 10)
for _, lines := range ctx.Comment.Review.CodeComments {
for _, comments := range lines {
reviewComments = append(reviewComments, comments...)
}
}
}
locale := translation.NewLocale(lang)
mailMeta := map[string]interface{}{
"FallbackSubject": fallback,
"Body": body,
"Link": link,
"Issue": ctx.Issue,
"Comment": ctx.Comment,
"IsPull": ctx.Issue.IsPull,
"User": ctx.Issue.Repo.MustOwner(),
"Repo": ctx.Issue.Repo.FullName(),
"Doer": ctx.Doer,
"IsMention": fromMention,
"SubjectPrefix": prefix,
"ActionType": actType,
"ActionName": actName,
"ReviewComments": reviewComments,
"Language": locale.Language(),
// helper
"i18n": locale,
"Str2html": templates.Str2html,
}
var mailSubject bytes.Buffer
if err := subjectTemplates.ExecuteTemplate(&mailSubject, string(tplName), mailMeta); err == nil {
subject = sanitizeSubject(mailSubject.String())
if subject == "" {
subject = fallback
}
} else {
log.Error("ExecuteTemplate [%s]: %v", tplName+"/subject", err)
}
subject = emoji.ReplaceAliases(subject)
mailMeta["Subject"] = subject
var mailBody bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&mailBody, string(tplName), mailMeta); err != nil {
log.Error("ExecuteTemplate [%s]: %v", string(tplName)+"/body", err)
}
// Make sure to compose independent messages to avoid leaking user emails
msgs := make([]*Message, 0, len(recipients))
for _, recipient := range recipients {
msg := NewMessageFrom([]string{recipient.Email}, ctx.Doer.DisplayName(), setting.MailService.FromEmail, subject, mailBody.String())
msg.Info = fmt.Sprintf("Subject: %s, %s", subject, info)
// Set Message-ID on first message so replies know what to reference
if actName == "new" {
msg.SetHeader("Message-ID", "<"+ctx.Issue.ReplyReference()+">")
} else {
msg.SetHeader("In-Reply-To", "<"+ctx.Issue.ReplyReference()+">")
msg.SetHeader("References", "<"+ctx.Issue.ReplyReference()+">")
}
for key, value := range generateAdditionalHeaders(ctx, actType, recipient) {
msg.SetHeader(key, value)
}
msgs = append(msgs, msg)
}
return msgs, nil
}
func generateAdditionalHeaders(ctx *mailCommentContext, reason string, recipient *models.User) map[string]string {
repo := ctx.Issue.Repo
return map[string]string{
// https://datatracker.ietf.org/doc/html/rfc2919
"List-ID": fmt.Sprintf("%s <%s.%s.%s>", repo.FullName(), repo.Name, repo.OwnerName, setting.Domain),
// https://datatracker.ietf.org/doc/html/rfc2369
"List-Archive": fmt.Sprintf("<%s>", repo.HTMLURL()),
//"List-Post": https://github.com/go-gitea/gitea/pull/13585
//"List-Unsubscribe": https://github.com/go-gitea/gitea/issues/10808, https://github.com/go-gitea/gitea/issues/13283
"X-Gitea-Reason": reason,
"X-Gitea-Sender": ctx.Doer.DisplayName(),
"X-Gitea-Recipient": recipient.DisplayName(),
"X-Gitea-Recipient-Address": recipient.Email,
"X-Gitea-Repository": repo.Name,
"X-Gitea-Repository-Path": repo.FullName(),
"X-Gitea-Repository-Link": repo.HTMLURL(),
"X-Gitea-Issue-ID": strconv.FormatInt(ctx.Issue.Index, 10),
"X-Gitea-Issue-Link": ctx.Issue.HTMLURL(),
"X-GitHub-Reason": reason,
"X-GitHub-Sender": ctx.Doer.DisplayName(),
"X-GitHub-Recipient": recipient.DisplayName(),
"X-GitHub-Recipient-Address": recipient.Email,
"X-GitLab-NotificationReason": reason,
"X-GitLab-Project": repo.Name,
"X-GitLab-Project-Path": repo.FullName(),
"X-GitLab-Issue-IID": strconv.FormatInt(ctx.Issue.Index, 10),
}
}
func sanitizeSubject(subject string) string {
runes := []rune(strings.TrimSpace(subjectRemoveSpaces.ReplaceAllLiteralString(subject, " ")))
if len(runes) > mailMaxSubjectRunes {
runes = runes[:mailMaxSubjectRunes]
}
// Encode non-ASCII characters
return mime.QEncoding.Encode("utf-8", string(runes))
}
// SendIssueAssignedMail composes and sends issue assigned email
func SendIssueAssignedMail(issue *models.Issue, doer *models.User, content string, comment *models.Comment, recipients []*models.User) error {
langMap := make(map[string][]*models.User)
for _, user := range recipients {
langMap[user.Language] = append(langMap[user.Language], user)
}
for lang, tos := range langMap {
msgs, err := composeIssueCommentMessages(&mailCommentContext{
Issue: issue,
Doer: doer,
ActionType: models.ActionType(0),
Content: content,
Comment: comment,
}, lang, tos, false, "issue assigned")
if err != nil {
return err
}
SendAsyncs(msgs)
}
return nil
}
// actionToTemplate returns the type and name of the action facing the user
// (slightly different from models.ActionType) and the name of the template to use (based on availability)
func actionToTemplate(issue *models.Issue, actionType models.ActionType,
commentType models.CommentType, reviewType models.ReviewType) (typeName, name, template string) {
if issue.IsPull {
typeName = "pull"
} else {
typeName = "issue"
}
switch actionType {
case models.ActionCreateIssue, models.ActionCreatePullRequest:
name = "new"
case models.ActionCommentIssue, models.ActionCommentPull:
name = "comment"
case models.ActionCloseIssue, models.ActionClosePullRequest:
name = "close"
case models.ActionReopenIssue, models.ActionReopenPullRequest:
name = "reopen"
case models.ActionMergePullRequest:
name = "merge"
case models.ActionPullReviewDismissed:
name = "review_dismissed"
case models.ActionPullRequestReadyForReview:
name = "ready_for_review"
default:
switch commentType {
case models.CommentTypeReview:
switch reviewType {
case models.ReviewTypeApprove:
name = "approve"
case models.ReviewTypeReject:
name = "reject"
default:
name = "review"
}
case models.CommentTypeCode:
name = "code"
case models.CommentTypeAssignees:
name = "assigned"
case models.CommentTypePullPush:
name = "push"
default:
name = "default"
}
}
template = typeName + "/" + name
ok := bodyTemplates.Lookup(template) != nil
if !ok && typeName != "issue" {
template = "issue/" + name
ok = bodyTemplates.Lookup(template) != nil
}
if !ok {
template = typeName + "/default"
ok = bodyTemplates.Lookup(template) != nil
}
if !ok {
template = "issue/default"
}
return
}
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