forgejo/services/mailer/mail_test.go
KN4CK3R fc037b4b82
Add support for incoming emails (#22056)
closes #13585
fixes #9067
fixes #2386
ref #6226
ref #6219
fixes #745

This PR adds support to process incoming emails to perform actions.
Currently I added handling of replies and unsubscribing from
issues/pulls. In contrast to #13585 the IMAP IDLE command is used
instead of polling which results (in my opinion 😉) in cleaner code.

Procedure:
- When sending an issue/pull reply email, a token is generated which is
present in the Reply-To and References header.
- IMAP IDLE waits until a new email arrives
- The token tells which action should be performed

A possible signature and/or reply gets stripped from the content.

I added a new service to the drone pipeline to test the receiving of
incoming mails. If we keep this in, we may test our outgoing emails too
in future.

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-01-14 23:57:10 +08:00

374 lines
14 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package mailer
import (
"bytes"
"context"
"fmt"
"html/template"
"regexp"
"strings"
"testing"
texttmpl "text/template"
activities_model "code.gitea.io/gitea/models/activities"
"code.gitea.io/gitea/models/db"
issues_model "code.gitea.io/gitea/models/issues"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unittest"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"github.com/stretchr/testify/assert"
)
const subjectTpl = `
{{.SubjectPrefix}}[{{.Repo}}] @{{.Doer.Name}} #{{.Issue.Index}} - {{.Issue.Title}}
`
const bodyTpl = `
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>{{.Subject}}</title>
</head>
<body>
<p>{{.Body}}</p>
<p>
---
<br>
<a href="{{.Link}}">View it on Gitea</a>.
</p>
</body>
</html>
`
func prepareMailerTest(t *testing.T) (doer *user_model.User, repo *repo_model.Repository, issue *issues_model.Issue, comment *issues_model.Comment) {
assert.NoError(t, unittest.PrepareTestDatabase())
mailService := setting.Mailer{
From: "test@gitea.com",
}
setting.MailService = &mailService
setting.Domain = "localhost"
doer = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
repo = unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1, Owner: doer})
issue = unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1, Repo: repo, Poster: doer})
assert.NoError(t, issue.LoadRepo(db.DefaultContext))
comment = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 2, Issue: issue})
return doer, repo, issue, comment
}
func TestComposeIssueCommentMessage(t *testing.T) {
doer, _, issue, comment := prepareMailerTest(t)
setting.IncomingEmail.Enabled = true
defer func() { setting.IncomingEmail.Enabled = false }()
subjectTemplates = texttmpl.Must(texttmpl.New("issue/comment").Parse(subjectTpl))
bodyTemplates = template.Must(template.New("issue/comment").Parse(bodyTpl))
recipients := []*user_model.User{{Name: "Test", Email: "test@gitea.com"}, {Name: "Test2", Email: "test2@gitea.com"}}
msgs, err := composeIssueCommentMessages(&mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: activities_model.ActionCommentIssue,
Content: "test body", Comment: comment,
}, "en-US", recipients, false, "issue comment")
assert.NoError(t, err)
assert.Len(t, msgs, 2)
gomailMsg := msgs[0].ToMessage()
replyTo := gomailMsg.GetHeader("Reply-To")[0]
subject := gomailMsg.GetHeader("Subject")[0]
assert.Len(t, gomailMsg.GetHeader("To"), 1, "exactly one recipient is expected in the To field")
tokenRegex := regexp.MustCompile(`\Aincoming\+(.+)@localhost\z`)
assert.Regexp(t, tokenRegex, replyTo)
token := tokenRegex.FindAllStringSubmatch(replyTo, 1)[0][1]
assert.Equal(t, "Re: ", subject[:4], "Comment reply subject should contain Re:")
assert.Equal(t, "Re: [user2/repo1] @user2 #1 - issue1", subject)
assert.Equal(t, "<user2/repo1/issues/1@localhost>", gomailMsg.GetHeader("In-Reply-To")[0], "In-Reply-To header doesn't match")
assert.ElementsMatch(t, []string{"<user2/repo1/issues/1@localhost>", "<reply-" + token + "@localhost>"}, gomailMsg.GetHeader("References"), "References header doesn't match")
assert.Equal(t, "<user2/repo1/issues/1/comment/2@localhost>", gomailMsg.GetHeader("Message-ID")[0], "Message-ID header doesn't match")
assert.Equal(t, "<mailto:"+replyTo+">", gomailMsg.GetHeader("List-Post")[0])
assert.Len(t, gomailMsg.GetHeader("List-Unsubscribe"), 2) // url + mailto
}
func TestComposeIssueMessage(t *testing.T) {
doer, _, issue, _ := prepareMailerTest(t)
subjectTemplates = texttmpl.Must(texttmpl.New("issue/new").Parse(subjectTpl))
bodyTemplates = template.Must(template.New("issue/new").Parse(bodyTpl))
recipients := []*user_model.User{{Name: "Test", Email: "test@gitea.com"}, {Name: "Test2", Email: "test2@gitea.com"}}
msgs, err := composeIssueCommentMessages(&mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: activities_model.ActionCreateIssue,
Content: "test body",
}, "en-US", recipients, false, "issue create")
assert.NoError(t, err)
assert.Len(t, msgs, 2)
gomailMsg := msgs[0].ToMessage()
mailto := gomailMsg.GetHeader("To")
subject := gomailMsg.GetHeader("Subject")
messageID := gomailMsg.GetHeader("Message-ID")
inReplyTo := gomailMsg.GetHeader("In-Reply-To")
references := gomailMsg.GetHeader("References")
assert.Len(t, mailto, 1, "exactly one recipient is expected in the To field")
assert.Equal(t, "[user2/repo1] @user2 #1 - issue1", subject[0])
assert.Equal(t, "<user2/repo1/issues/1@localhost>", inReplyTo[0], "In-Reply-To header doesn't match")
assert.Equal(t, "<user2/repo1/issues/1@localhost>", references[0], "References header doesn't match")
assert.Equal(t, "<user2/repo1/issues/1@localhost>", messageID[0], "Message-ID header doesn't match")
assert.Empty(t, gomailMsg.GetHeader("List-Post")) // incoming mail feature disabled
assert.Len(t, gomailMsg.GetHeader("List-Unsubscribe"), 1) // url without mailto
}
func TestTemplateSelection(t *testing.T) {
doer, repo, issue, comment := prepareMailerTest(t)
recipients := []*user_model.User{{Name: "Test", Email: "test@gitea.com"}}
subjectTemplates = texttmpl.Must(texttmpl.New("issue/default").Parse("issue/default/subject"))
texttmpl.Must(subjectTemplates.New("issue/new").Parse("issue/new/subject"))
texttmpl.Must(subjectTemplates.New("pull/comment").Parse("pull/comment/subject"))
texttmpl.Must(subjectTemplates.New("issue/close").Parse("")) // Must default to fallback subject
bodyTemplates = template.Must(template.New("issue/default").Parse("issue/default/body"))
template.Must(bodyTemplates.New("issue/new").Parse("issue/new/body"))
template.Must(bodyTemplates.New("pull/comment").Parse("pull/comment/body"))
template.Must(bodyTemplates.New("issue/close").Parse("issue/close/body"))
expect := func(t *testing.T, msg *Message, expSubject, expBody string) {
subject := msg.ToMessage().GetHeader("Subject")
msgbuf := new(bytes.Buffer)
_, _ = msg.ToMessage().WriteTo(msgbuf)
wholemsg := msgbuf.String()
assert.Equal(t, []string{expSubject}, subject)
assert.Contains(t, wholemsg, expBody)
}
msg := testComposeIssueCommentMessage(t, &mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: activities_model.ActionCreateIssue,
Content: "test body",
}, recipients, false, "TestTemplateSelection")
expect(t, msg, "issue/new/subject", "issue/new/body")
msg = testComposeIssueCommentMessage(t, &mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: activities_model.ActionCommentIssue,
Content: "test body", Comment: comment,
}, recipients, false, "TestTemplateSelection")
expect(t, msg, "issue/default/subject", "issue/default/body")
pull := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2, Repo: repo, Poster: doer})
comment = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 4, Issue: pull})
msg = testComposeIssueCommentMessage(t, &mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: pull, Doer: doer, ActionType: activities_model.ActionCommentPull,
Content: "test body", Comment: comment,
}, recipients, false, "TestTemplateSelection")
expect(t, msg, "pull/comment/subject", "pull/comment/body")
msg = testComposeIssueCommentMessage(t, &mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: activities_model.ActionCloseIssue,
Content: "test body", Comment: comment,
}, recipients, false, "TestTemplateSelection")
expect(t, msg, "Re: [user2/repo1] issue1 (#1)", "issue/close/body")
}
func TestTemplateServices(t *testing.T) {
doer, _, issue, comment := prepareMailerTest(t)
assert.NoError(t, issue.LoadRepo(db.DefaultContext))
expect := func(t *testing.T, issue *issues_model.Issue, comment *issues_model.Comment, doer *user_model.User,
actionType activities_model.ActionType, fromMention bool, tplSubject, tplBody, expSubject, expBody string,
) {
subjectTemplates = texttmpl.Must(texttmpl.New("issue/default").Parse(tplSubject))
bodyTemplates = template.Must(template.New("issue/default").Parse(tplBody))
recipients := []*user_model.User{{Name: "Test", Email: "test@gitea.com"}}
msg := testComposeIssueCommentMessage(t, &mailCommentContext{
Context: context.TODO(), // TODO: use a correct context
Issue: issue, Doer: doer, ActionType: actionType,
Content: "test body", Comment: comment,
}, recipients, fromMention, "TestTemplateServices")
subject := msg.ToMessage().GetHeader("Subject")
msgbuf := new(bytes.Buffer)
_, _ = msg.ToMessage().WriteTo(msgbuf)
wholemsg := msgbuf.String()
assert.Equal(t, []string{expSubject}, subject)
assert.Contains(t, wholemsg, "\r\n"+expBody+"\r\n")
}
expect(t, issue, comment, doer, activities_model.ActionCommentIssue, false,
"{{.SubjectPrefix}}[{{.Repo}}]: @{{.Doer.Name}} commented on #{{.Issue.Index}} - {{.Issue.Title}}",
"//{{.ActionType}},{{.ActionName}},{{if .IsMention}}norender{{end}}//",
"Re: [user2/repo1]: @user2 commented on #1 - issue1",
"//issue,comment,//")
expect(t, issue, comment, doer, activities_model.ActionCommentIssue, true,
"{{if .IsMention}}must render{{end}}",
"//subject is: {{.Subject}}//",
"must render",
"//subject is: must render//")
expect(t, issue, comment, doer, activities_model.ActionCommentIssue, true,
"{{.FallbackSubject}}",
"//{{.SubjectPrefix}}//",
"Re: [user2/repo1] issue1 (#1)",
"//Re: //")
}
func testComposeIssueCommentMessage(t *testing.T, ctx *mailCommentContext, recipients []*user_model.User, fromMention bool, info string) *Message {
msgs, err := composeIssueCommentMessages(ctx, "en-US", recipients, fromMention, info)
assert.NoError(t, err)
assert.Len(t, msgs, 1)
return msgs[0]
}
func TestGenerateAdditionalHeaders(t *testing.T) {
doer, _, issue, _ := prepareMailerTest(t)
ctx := &mailCommentContext{Context: context.TODO() /* TODO: use a correct context */, Issue: issue, Doer: doer}
recipient := &user_model.User{Name: "Test", Email: "test@gitea.com"}
headers := generateAdditionalHeaders(ctx, "dummy-reason", recipient)
expected := map[string]string{
"List-ID": "user2/repo1 <repo1.user2.localhost>",
"List-Archive": "<https://try.gitea.io/user2/repo1>",
"X-Gitea-Reason": "dummy-reason",
"X-Gitea-Sender": "< U<se>r Tw<o > ><",
"X-Gitea-Recipient": "Test",
"X-Gitea-Recipient-Address": "test@gitea.com",
"X-Gitea-Repository": "repo1",
"X-Gitea-Repository-Path": "user2/repo1",
"X-Gitea-Repository-Link": "https://try.gitea.io/user2/repo1",
"X-Gitea-Issue-ID": "1",
"X-Gitea-Issue-Link": "https://try.gitea.io/user2/repo1/issues/1",
}
for key, value := range expected {
if assert.Contains(t, headers, key) {
assert.Equal(t, value, headers[key])
}
}
}
func Test_createReference(t *testing.T) {
_, _, issue, comment := prepareMailerTest(t)
_, _, pullIssue, _ := prepareMailerTest(t)
pullIssue.IsPull = true
type args struct {
issue *issues_model.Issue
comment *issues_model.Comment
actionType activities_model.ActionType
}
tests := []struct {
name string
args args
prefix string
}{
{
name: "Open Issue",
args: args{
issue: issue,
actionType: activities_model.ActionCreateIssue,
},
prefix: fmt.Sprintf("<%s/issues/%d@%s>", issue.Repo.FullName(), issue.Index, setting.Domain),
},
{
name: "Open Pull",
args: args{
issue: pullIssue,
actionType: activities_model.ActionCreatePullRequest,
},
prefix: fmt.Sprintf("<%s/pulls/%d@%s>", issue.Repo.FullName(), issue.Index, setting.Domain),
},
{
name: "Comment Issue",
args: args{
issue: issue,
comment: comment,
actionType: activities_model.ActionCommentIssue,
},
prefix: fmt.Sprintf("<%s/issues/%d/comment/%d@%s>", issue.Repo.FullName(), issue.Index, comment.ID, setting.Domain),
},
{
name: "Comment Pull",
args: args{
issue: pullIssue,
comment: comment,
actionType: activities_model.ActionCommentPull,
},
prefix: fmt.Sprintf("<%s/pulls/%d/comment/%d@%s>", issue.Repo.FullName(), issue.Index, comment.ID, setting.Domain),
},
{
name: "Close Issue",
args: args{
issue: issue,
actionType: activities_model.ActionCloseIssue,
},
prefix: fmt.Sprintf("<%s/issues/%d/close/", issue.Repo.FullName(), issue.Index),
},
{
name: "Close Pull",
args: args{
issue: pullIssue,
actionType: activities_model.ActionClosePullRequest,
},
prefix: fmt.Sprintf("<%s/pulls/%d/close/", issue.Repo.FullName(), issue.Index),
},
{
name: "Reopen Issue",
args: args{
issue: issue,
actionType: activities_model.ActionReopenIssue,
},
prefix: fmt.Sprintf("<%s/issues/%d/reopen/", issue.Repo.FullName(), issue.Index),
},
{
name: "Reopen Pull",
args: args{
issue: pullIssue,
actionType: activities_model.ActionReopenPullRequest,
},
prefix: fmt.Sprintf("<%s/pulls/%d/reopen/", issue.Repo.FullName(), issue.Index),
},
{
name: "Merge Pull",
args: args{
issue: pullIssue,
actionType: activities_model.ActionMergePullRequest,
},
prefix: fmt.Sprintf("<%s/pulls/%d/merge/", issue.Repo.FullName(), issue.Index),
},
{
name: "Ready Pull",
args: args{
issue: pullIssue,
actionType: activities_model.ActionPullRequestReadyForReview,
},
prefix: fmt.Sprintf("<%s/pulls/%d/ready/", issue.Repo.FullName(), issue.Index),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := createReference(tt.args.issue, tt.args.comment, tt.args.actionType)
if !strings.HasPrefix(got, tt.prefix) {
t.Errorf("createReference() = %v, want %v", got, tt.prefix)
}
})
}
}