forgejo/services/mailer/mail.go
Earl Warren d4a0db7706
[BRANDING] add X-Forgejo-* headers
(cherry picked from commit 0a3388f93f)
(cherry picked from commit 7eba0a440a)
(cherry picked from commit eb9646c7ef)
(cherry picked from commit f1972578f5)

Conflicts:
(cherry picked from commit 7f96222fb4)
(cherry picked from commit e3c7c9fe7b)
(cherry picked from commit 84fdead902)
(cherry picked from commit 85148e1196)
(cherry picked from commit c0086bd70d)
(cherry picked from commit d1e31ef318)
(cherry picked from commit 681d3ed5c4)
(cherry picked from commit 76a3001f5b)
(cherry picked from commit a55a9567d3)
(cherry picked from commit aa7adc167d)
(cherry picked from commit d5354cb52c)
(cherry picked from commit 472c489996)
(cherry picked from commit dc816d065b)
(cherry picked from commit 4795f9ea85)
(cherry picked from commit ddd4ae5343)
(cherry picked from commit 0e95f2a36b)
(cherry picked from commit 47a41a4e7b)
(cherry picked from commit d4416fcd3e)
(cherry picked from commit f279d153b6)
(cherry picked from commit 959f908ffd)
(cherry picked from commit 82df953101)
(cherry picked from commit 8f8c9fd9e3)
2023-08-22 10:00:42 +02:00

549 lines
17 KiB
Go

// Copyright 2016 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package mailer
import (
"bytes"
"context"
"fmt"
"html/template"
"mime"
"regexp"
"strconv"
"strings"
texttmpl "text/template"
"time"
activities_model "code.gitea.io/gitea/models/activities"
issues_model "code.gitea.io/gitea/models/issues"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"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"
incoming_payload "code.gitea.io/gitea/services/mailer/incoming/payload"
"code.gitea.io/gitea/services/mailer/token"
"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]+`)
)
// SendTestMail sends a test mail
func SendTestMail(email string) error {
if setting.MailService == nil {
// No mail service configured
return nil
}
return gomail.Send(Sender, NewMessage(email, "Gitea Test Email!", "Gitea Test Email!").ToMessage())
}
// sendUserMail sends a mail to the user
func sendUserMail(language string, u *user_model.User, tpl base.TplName, code, subject, info string) {
locale := translation.NewLocale(language)
data := map[string]any{
"DisplayName": u.DisplayName(),
"ActiveCodeLives": timeutil.MinutesToFriendly(setting.Service.ActiveCodeLives, locale),
"ResetPwdCodeLives": timeutil.MinutesToFriendly(setting.Service.ResetPwdCodeLives, locale),
"Code": code,
"Language": locale.Language(),
// helper
"locale": locale,
"Str2html": templates.Str2html,
"DotEscape": templates.DotEscape,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(tpl), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage(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 *user_model.User) {
if setting.MailService == nil {
// No mail service configured
return
}
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 *user_model.User) {
if setting.MailService == nil {
// No mail service configured
return
}
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 *user_model.User, email *user_model.EmailAddress) {
if setting.MailService == nil {
// No mail service configured
return
}
locale := translation.NewLocale(u.Language)
data := map[string]any{
"DisplayName": u.DisplayName(),
"ActiveCodeLives": timeutil.MinutesToFriendly(setting.Service.ActiveCodeLives, locale),
"Code": u.GenerateEmailActivateCode(email.Email),
"Email": email.Email,
"Language": locale.Language(),
// helper
"locale": locale,
"Str2html": templates.Str2html,
"DotEscape": templates.DotEscape,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailAuthActivateEmail), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage(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 *user_model.User) {
if setting.MailService == nil || !u.IsActive {
// No mail service configured OR user is inactive
return
}
locale := translation.NewLocale(u.Language)
data := map[string]any{
"DisplayName": u.DisplayName(),
"Username": u.Name,
"Language": locale.Language(),
// helper
"locale": locale,
"Str2html": templates.Str2html,
"DotEscape": templates.DotEscape,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailAuthRegisterNotify), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage(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 *user_model.User, repo *repo_model.Repository) {
if setting.MailService == nil || !u.IsActive {
// No mail service configured OR the user is inactive
return
}
locale := translation.NewLocale(u.Language)
repoName := repo.FullName()
subject := locale.Tr("mail.repo.collaborator.added.subject", doer.DisplayName(), repoName)
data := map[string]any{
"Subject": subject,
"RepoName": repoName,
"Link": repo.HTMLURL(),
"Language": locale.Language(),
// helper
"locale": locale,
"Str2html": templates.Str2html,
"DotEscape": templates.DotEscape,
}
var content bytes.Buffer
if err := bodyTemplates.ExecuteTemplate(&content, string(mailNotifyCollaborator), data); err != nil {
log.Error("Template: %v", err)
return
}
msg := NewMessage(u.Email, subject, content.String())
msg.Info = fmt.Sprintf("UID: %d, add collaborator", u.ID)
SendAsync(msg)
}
func composeIssueCommentMessages(ctx *mailCommentContext, lang string, recipients []*user_model.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 []*issues_model.Comment
)
commentType := issues_model.CommentTypeComment
if ctx.Comment != nil {
commentType = ctx.Comment.Type
link = ctx.Issue.HTMLURL() + "#" + ctx.Comment.HashTag()
} else {
link = ctx.Issue.HTMLURL()
}
reviewType := issues_model.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{
Ctx: ctx,
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([]*issues_model.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]any{
"FallbackSubject": fallback,
"Body": body,
"Link": link,
"Issue": ctx.Issue,
"Comment": ctx.Comment,
"IsPull": ctx.Issue.IsPull,
"User": ctx.Issue.Repo.MustOwner(ctx),
"Repo": ctx.Issue.Repo.FullName(),
"Doer": ctx.Doer,
"IsMention": fromMention,
"SubjectPrefix": prefix,
"ActionType": actType,
"ActionName": actName,
"ReviewComments": reviewComments,
"Language": locale.Language(),
"CanReply": setting.IncomingEmail.Enabled && commentType != issues_model.CommentTypePullRequestPush,
// helper
"locale": locale,
"Str2html": templates.Str2html,
"DotEscape": templates.DotEscape,
}
var mailSubject bytes.Buffer
if err := subjectTemplates.ExecuteTemplate(&mailSubject, 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, tplName, mailMeta); err != nil {
log.Error("ExecuteTemplate [%s]: %v", tplName+"/body", err)
}
// Make sure to compose independent messages to avoid leaking user emails
msgID := createReference(ctx.Issue, ctx.Comment, ctx.ActionType)
reference := createReference(ctx.Issue, nil, activities_model.ActionType(0))
var replyPayload []byte
if ctx.Comment != nil && ctx.Comment.Type == issues_model.CommentTypeCode {
replyPayload, err = incoming_payload.CreateReferencePayload(ctx.Comment)
} else {
replyPayload, err = incoming_payload.CreateReferencePayload(ctx.Issue)
}
if err != nil {
return nil, err
}
unsubscribePayload, err := incoming_payload.CreateReferencePayload(ctx.Issue)
if err != nil {
return nil, err
}
msgs := make([]*Message, 0, len(recipients))
for _, recipient := range recipients {
msg := NewMessageFrom(recipient.Email, ctx.Doer.DisplayName(), setting.MailService.FromEmail, subject, mailBody.String())
msg.Info = fmt.Sprintf("Subject: %s, %s", subject, info)
msg.SetHeader("Message-ID", msgID)
msg.SetHeader("In-Reply-To", reference)
references := []string{reference}
listUnsubscribe := []string{"<" + ctx.Issue.HTMLURL() + ">"}
if setting.IncomingEmail.Enabled {
if ctx.Comment != nil {
token, err := token.CreateToken(token.ReplyHandlerType, recipient, replyPayload)
if err != nil {
log.Error("CreateToken failed: %v", err)
} else {
replyAddress := strings.Replace(setting.IncomingEmail.ReplyToAddress, setting.IncomingEmail.TokenPlaceholder, token, 1)
msg.ReplyTo = replyAddress
msg.SetHeader("List-Post", fmt.Sprintf("<mailto:%s>", replyAddress))
references = append(references, fmt.Sprintf("<reply-%s@%s>", token, setting.Domain))
}
}
token, err := token.CreateToken(token.UnsubscribeHandlerType, recipient, unsubscribePayload)
if err != nil {
log.Error("CreateToken failed: %v", err)
} else {
unsubAddress := strings.Replace(setting.IncomingEmail.ReplyToAddress, setting.IncomingEmail.TokenPlaceholder, token, 1)
listUnsubscribe = append(listUnsubscribe, "<mailto:"+unsubAddress+">")
}
}
msg.SetHeader("References", references...)
msg.SetHeader("List-Unsubscribe", listUnsubscribe...)
for key, value := range generateAdditionalHeaders(ctx, actType, recipient) {
msg.SetHeader(key, value)
}
msgs = append(msgs, msg)
}
return msgs, nil
}
func createReference(issue *issues_model.Issue, comment *issues_model.Comment, actionType activities_model.ActionType) string {
var path string
if issue.IsPull {
path = "pulls"
} else {
path = "issues"
}
var extra string
if comment != nil {
extra = fmt.Sprintf("/comment/%d", comment.ID)
} else {
switch actionType {
case activities_model.ActionCloseIssue, activities_model.ActionClosePullRequest:
extra = fmt.Sprintf("/close/%d", time.Now().UnixNano()/1e6)
case activities_model.ActionReopenIssue, activities_model.ActionReopenPullRequest:
extra = fmt.Sprintf("/reopen/%d", time.Now().UnixNano()/1e6)
case activities_model.ActionMergePullRequest, activities_model.ActionAutoMergePullRequest:
extra = fmt.Sprintf("/merge/%d", time.Now().UnixNano()/1e6)
case activities_model.ActionPullRequestReadyForReview:
extra = fmt.Sprintf("/ready/%d", time.Now().UnixNano()/1e6)
}
}
return fmt.Sprintf("<%s/%s/%d%s@%s>", issue.Repo.FullName(), path, issue.Index, extra, setting.Domain)
}
func generateAdditionalHeaders(ctx *mailCommentContext, reason string, recipient *user_model.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()),
"X-Mailer": "Gitea",
"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-Forgejo-Reason": reason,
"X-Forgejo-Sender": ctx.Doer.DisplayName(),
"X-Forgejo-Recipient": recipient.DisplayName(),
"X-Forgejo-Recipient-Address": recipient.Email,
"X-Forgejo-Repository": repo.Name,
"X-Forgejo-Repository-Path": repo.FullName(),
"X-Forgejo-Repository-Link": repo.HTMLURL(),
"X-Forgejo-Issue-ID": strconv.FormatInt(ctx.Issue.Index, 10),
"X-Forgejo-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(ctx context.Context, issue *issues_model.Issue, doer *user_model.User, content string, comment *issues_model.Comment, recipients []*user_model.User) error {
if setting.MailService == nil {
// No mail service configured
return nil
}
if err := issue.LoadRepo(ctx); err != nil {
log.Error("Unable to load repo [%d] for issue #%d [%d]. Error: %v", issue.RepoID, issue.Index, issue.ID, err)
return err
}
langMap := make(map[string][]*user_model.User)
for _, user := range recipients {
if !user.IsActive {
// don't send emails to inactive users
continue
}
langMap[user.Language] = append(langMap[user.Language], user)
}
for lang, tos := range langMap {
msgs, err := composeIssueCommentMessages(&mailCommentContext{
Context: ctx,
Issue: issue,
Doer: doer,
ActionType: activities_model.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 activities_model.ActionType) and the name of the template to use (based on availability)
func actionToTemplate(issue *issues_model.Issue, actionType activities_model.ActionType,
commentType issues_model.CommentType, reviewType issues_model.ReviewType,
) (typeName, name, template string) {
if issue.IsPull {
typeName = "pull"
} else {
typeName = "issue"
}
switch actionType {
case activities_model.ActionCreateIssue, activities_model.ActionCreatePullRequest:
name = "new"
case activities_model.ActionCommentIssue, activities_model.ActionCommentPull:
name = "comment"
case activities_model.ActionCloseIssue, activities_model.ActionClosePullRequest:
name = "close"
case activities_model.ActionReopenIssue, activities_model.ActionReopenPullRequest:
name = "reopen"
case activities_model.ActionMergePullRequest, activities_model.ActionAutoMergePullRequest:
name = "merge"
case activities_model.ActionPullReviewDismissed:
name = "review_dismissed"
case activities_model.ActionPullRequestReadyForReview:
name = "ready_for_review"
default:
switch commentType {
case issues_model.CommentTypeReview:
switch reviewType {
case issues_model.ReviewTypeApprove:
name = "approve"
case issues_model.ReviewTypeReject:
name = "reject"
default:
name = "review"
}
case issues_model.CommentTypeCode:
name = "code"
case issues_model.CommentTypeAssignees:
name = "assigned"
case issues_model.CommentTypePullRequestPush:
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 typeName, name, template
}