forgejo/services/webhook/discord.go
Kemal Zebari 30b8b45e5e
Truncate commit message during Discord webhook push events (#31970)
Resolves #31668.

(cherry picked from commit aadbe0488f454b9f7f5a56765f4530f9d1e2c6ec)
2024-09-29 10:25:52 +02:00

343 lines
10 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package webhook
import (
"context"
"errors"
"fmt"
"html/template"
"net/http"
"net/url"
"strconv"
"strings"
"unicode/utf8"
webhook_model "code.gitea.io/gitea/models/webhook"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
webhook_module "code.gitea.io/gitea/modules/webhook"
"code.gitea.io/gitea/services/forms"
"code.gitea.io/gitea/services/webhook/shared"
)
type discordHandler struct{}
func (discordHandler) Type() webhook_module.HookType { return webhook_module.DISCORD }
func (discordHandler) Icon(size int) template.HTML { return shared.ImgIcon("discord.png", size) }
func (discordHandler) UnmarshalForm(bind func(any)) forms.WebhookForm {
var form struct {
forms.WebhookCoreForm
PayloadURL string `binding:"Required;ValidUrl"`
Username string
IconURL string
}
bind(&form)
return forms.WebhookForm{
WebhookCoreForm: form.WebhookCoreForm,
URL: form.PayloadURL,
ContentType: webhook_model.ContentTypeJSON,
Secret: "",
HTTPMethod: http.MethodPost,
Metadata: &DiscordMeta{
Username: form.Username,
IconURL: form.IconURL,
},
}
}
type (
// DiscordEmbedFooter for Embed Footer Structure.
DiscordEmbedFooter struct {
Text string `json:"text"`
}
// DiscordEmbedAuthor for Embed Author Structure
DiscordEmbedAuthor struct {
Name string `json:"name"`
URL string `json:"url"`
IconURL string `json:"icon_url"`
}
// DiscordEmbedField for Embed Field Structure
DiscordEmbedField struct {
Name string `json:"name"`
Value string `json:"value"`
}
// DiscordEmbed is for Embed Structure
DiscordEmbed struct {
Title string `json:"title"`
Description string `json:"description"`
URL string `json:"url"`
Color int `json:"color"`
Footer DiscordEmbedFooter `json:"footer"`
Author DiscordEmbedAuthor `json:"author"`
Fields []DiscordEmbedField `json:"fields"`
}
// DiscordPayload represents
DiscordPayload struct {
Wait bool `json:"wait"`
Content string `json:"content"`
Username string `json:"username"`
AvatarURL string `json:"avatar_url,omitempty"`
TTS bool `json:"tts"`
Embeds []DiscordEmbed `json:"embeds"`
}
// DiscordMeta contains the discord metadata
DiscordMeta struct {
Username string `json:"username"`
IconURL string `json:"icon_url"`
}
)
// Metadata returns discord metadata
func (discordHandler) Metadata(w *webhook_model.Webhook) any {
s := &DiscordMeta{}
if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
log.Error("discordHandler.Metadata(%d): %v", w.ID, err)
}
return s
}
func color(clr string) int {
if clr != "" {
clr = strings.TrimLeft(clr, "#")
if s, err := strconv.ParseInt(clr, 16, 32); err == nil {
return int(s)
}
}
return 0
}
var (
greenColor = color("1ac600")
greenColorLight = color("bfe5bf")
yellowColor = color("ffd930")
greyColor = color("4f545c")
purpleColor = color("7289da")
orangeColor = color("eb6420")
orangeColorLight = color("e68d60")
redColor = color("ff3232")
)
// Create implements PayloadConvertor Create method
func (d discordConvertor) Create(p *api.CreatePayload) (DiscordPayload, error) {
// created tag/branch
refName := git.RefName(p.Ref).ShortName()
title := fmt.Sprintf("[%s] %s %s created", p.Repo.FullName, p.RefType, refName)
return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName), greenColor), nil
}
// Delete implements PayloadConvertor Delete method
func (d discordConvertor) Delete(p *api.DeletePayload) (DiscordPayload, error) {
// deleted tag/branch
refName := git.RefName(p.Ref).ShortName()
title := fmt.Sprintf("[%s] %s %s deleted", p.Repo.FullName, p.RefType, refName)
return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName), redColor), nil
}
// Fork implements PayloadConvertor Fork method
func (d discordConvertor) Fork(p *api.ForkPayload) (DiscordPayload, error) {
title := fmt.Sprintf("%s is forked to %s", p.Forkee.FullName, p.Repo.FullName)
return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL, greenColor), nil
}
// Push implements PayloadConvertor Push method
func (d discordConvertor) Push(p *api.PushPayload) (DiscordPayload, error) {
var (
branchName = git.RefName(p.Ref).ShortName()
commitDesc string
)
var titleLink string
if p.TotalCommits == 1 {
commitDesc = "1 new commit"
titleLink = p.Commits[0].URL
} else {
commitDesc = fmt.Sprintf("%d new commits", p.TotalCommits)
titleLink = p.CompareURL
}
if titleLink == "" {
titleLink = p.Repo.HTMLURL + "/src/" + util.PathEscapeSegments(branchName)
}
title := fmt.Sprintf("[%s:%s] %s", p.Repo.FullName, branchName, commitDesc)
var text string
// for each commit, generate attachment text
for i, commit := range p.Commits {
// limit the commit message display to just the summary, otherwise it would be hard to read
message := strings.TrimRight(strings.SplitN(commit.Message, "\n", 1)[0], "\r")
// a limit of 50 is set because GitHub does the same
if utf8.RuneCountInString(message) > 50 {
message = fmt.Sprintf("%.47s...", message)
}
text += fmt.Sprintf("[%s](%s) %s - %s", commit.ID[:7], commit.URL, message, commit.Author.Name)
// add linebreak to each commit but the last
if i < len(p.Commits)-1 {
text += "\n"
}
}
return d.createPayload(p.Sender, title, text, titleLink, greenColor), nil
}
// Issue implements PayloadConvertor Issue method
func (d discordConvertor) Issue(p *api.IssuePayload) (DiscordPayload, error) {
title, _, text, color := getIssuesPayloadInfo(p, noneLinkFormatter, false)
return d.createPayload(p.Sender, title, text, p.Issue.HTMLURL, color), nil
}
// IssueComment implements PayloadConvertor IssueComment method
func (d discordConvertor) IssueComment(p *api.IssueCommentPayload) (DiscordPayload, error) {
title, _, color := getIssueCommentPayloadInfo(p, noneLinkFormatter, false)
return d.createPayload(p.Sender, title, p.Comment.Body, p.Comment.HTMLURL, color), nil
}
// PullRequest implements PayloadConvertor PullRequest method
func (d discordConvertor) PullRequest(p *api.PullRequestPayload) (DiscordPayload, error) {
title, _, text, color := getPullRequestPayloadInfo(p, noneLinkFormatter, false)
return d.createPayload(p.Sender, title, text, p.PullRequest.HTMLURL, color), nil
}
// Review implements PayloadConvertor Review method
func (d discordConvertor) Review(p *api.PullRequestPayload, event webhook_module.HookEventType) (DiscordPayload, error) {
var text, title string
var color int
if p.Action == api.HookIssueReviewed {
action, err := parseHookPullRequestEventType(event)
if err != nil {
return DiscordPayload{}, err
}
title = fmt.Sprintf("[%s] Pull request review %s: #%d %s", p.Repository.FullName, action, p.Index, p.PullRequest.Title)
text = p.Review.Content
switch event {
case webhook_module.HookEventPullRequestReviewApproved:
color = greenColor
case webhook_module.HookEventPullRequestReviewRejected:
color = redColor
case webhook_module.HookEventPullRequestReviewComment:
color = greyColor
default:
color = yellowColor
}
}
return d.createPayload(p.Sender, title, text, p.PullRequest.HTMLURL, color), nil
}
// Repository implements PayloadConvertor Repository method
func (d discordConvertor) Repository(p *api.RepositoryPayload) (DiscordPayload, error) {
var title, url string
var color int
switch p.Action {
case api.HookRepoCreated:
title = fmt.Sprintf("[%s] Repository created", p.Repository.FullName)
url = p.Repository.HTMLURL
color = greenColor
case api.HookRepoDeleted:
title = fmt.Sprintf("[%s] Repository deleted", p.Repository.FullName)
color = redColor
}
return d.createPayload(p.Sender, title, "", url, color), nil
}
// Wiki implements PayloadConvertor Wiki method
func (d discordConvertor) Wiki(p *api.WikiPayload) (DiscordPayload, error) {
text, color, _ := getWikiPayloadInfo(p, noneLinkFormatter, false)
htmlLink := p.Repository.HTMLURL + "/wiki/" + url.PathEscape(p.Page)
var description string
if p.Action != api.HookWikiDeleted {
description = p.Comment
}
return d.createPayload(p.Sender, text, description, htmlLink, color), nil
}
// Release implements PayloadConvertor Release method
func (d discordConvertor) Release(p *api.ReleasePayload) (DiscordPayload, error) {
text, color := getReleasePayloadInfo(p, noneLinkFormatter, false)
return d.createPayload(p.Sender, text, p.Release.Note, p.Release.HTMLURL, color), nil
}
func (d discordConvertor) Package(p *api.PackagePayload) (DiscordPayload, error) {
text, color := getPackagePayloadInfo(p, noneLinkFormatter, false)
return d.createPayload(p.Sender, text, "", p.Package.HTMLURL, color), nil
}
type discordConvertor struct {
Username string
AvatarURL string
}
var _ shared.PayloadConvertor[DiscordPayload] = discordConvertor{}
func (discordHandler) NewRequest(ctx context.Context, w *webhook_model.Webhook, t *webhook_model.HookTask) (*http.Request, []byte, error) {
meta := &DiscordMeta{}
if err := json.Unmarshal([]byte(w.Meta), meta); err != nil {
return nil, nil, fmt.Errorf("discordHandler.NewRequest meta json: %w", err)
}
sc := discordConvertor{
Username: meta.Username,
AvatarURL: meta.IconURL,
}
return shared.NewJSONRequest(sc, w, t, true)
}
func parseHookPullRequestEventType(event webhook_module.HookEventType) (string, error) {
switch event {
case webhook_module.HookEventPullRequestReviewApproved:
return "approved", nil
case webhook_module.HookEventPullRequestReviewRejected:
return "rejected", nil
case webhook_module.HookEventPullRequestReviewComment:
return "comment", nil
default:
return "", errors.New("unknown event type")
}
}
func (d discordConvertor) createPayload(s *api.User, title, text, url string, color int) DiscordPayload {
return DiscordPayload{
Username: d.Username,
AvatarURL: d.AvatarURL,
Embeds: []DiscordEmbed{
{
Title: title,
Description: text,
URL: url,
Color: color,
Author: DiscordEmbedAuthor{
Name: s.UserName,
URL: setting.AppURL + s.UserName,
IconURL: s.AvatarURL,
},
},
},
}
}