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Implementation of discord webhook (#2402)
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* implementation of discord webhook

* fix webhooks

* fix typo and unnecessary color values

* fix typo

* fix imports and revert changes to webhook_slack.go
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lunny authored Aug 28, 2017
1 parent e41da38 commit ced50e0
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Showing 11 changed files with 427 additions and 14 deletions.
33 changes: 25 additions & 8 deletions models/webhook.go
Original file line number Diff line number Diff line change
Expand Up @@ -13,15 +13,14 @@ import (
"strings"
"time"

"github.com/go-xorm/xorm"
gouuid "github.com/satori/go.uuid"

api "code.gitea.io/sdk/gitea"

"code.gitea.io/gitea/modules/httplib"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/sync"
api "code.gitea.io/sdk/gitea"

"github.com/go-xorm/xorm"
gouuid "github.com/satori/go.uuid"
)

// HookQueue is a global queue of web hooks
Expand Down Expand Up @@ -150,6 +149,15 @@ func (w *Webhook) GetSlackHook() *SlackMeta {
return s
}

// GetDiscordHook returns discord metadata
func (w *Webhook) GetDiscordHook() *DiscordMeta {
s := &DiscordMeta{}
if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
log.Error(4, "webhook.GetDiscordHook(%d): %v", w.ID, err)
}
return s
}

// History returns history of webhook by given conditions.
func (w *Webhook) History(page int) ([]*HookTask, error) {
return HookTasks(w.ID, page)
Expand Down Expand Up @@ -314,12 +322,14 @@ const (
GOGS HookTaskType = iota + 1
SLACK
GITEA
DISCORD
)

var hookTaskTypes = map[string]HookTaskType{
"gitea": GITEA,
"gogs": GOGS,
"slack": SLACK,
"gitea": GITEA,
"gogs": GOGS,
"slack": SLACK,
"discord": DISCORD,
}

// ToHookTaskType returns HookTaskType by given name.
Expand All @@ -336,6 +346,8 @@ func (t HookTaskType) Name() string {
return "gogs"
case SLACK:
return "slack"
case DISCORD:
return "discord"
}
return ""
}
Expand Down Expand Up @@ -515,6 +527,11 @@ func PrepareWebhooks(repo *Repository, event HookEventType, p api.Payloader) err
if err != nil {
return fmt.Errorf("GetSlackPayload: %v", err)
}
case DISCORD:
payloader, err = GetDiscordPayload(p, event, w.Meta)
if err != nil {
return fmt.Errorf("GetDiscordPayload: %v", err)
}
default:
p.SetSecret(w.Secret)
payloader = p
Expand Down
252 changes: 252 additions & 0 deletions models/webhook_discord.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,252 @@
package models

import (
"encoding/json"
"errors"
"fmt"
"strconv"
"strings"

"code.gitea.io/git"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/sdk/gitea"
)

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"`
TTS bool `json:"tts"`
Embeds []DiscordEmbed `json:"embeds"`
}

// DiscordMeta contains the discord metadata
DiscordMeta struct {
Username string `json:"username"`
IconURL string `json:"icon_url"`
}
)

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 (
successColor = color("1ac600")
warnColor = color("ffd930")
failedColor = color("ff3232")
)

// SetSecret sets the discord secret
func (p *DiscordPayload) SetSecret(_ string) {}

// JSONPayload Marshals the DiscordPayload to json
func (p *DiscordPayload) JSONPayload() ([]byte, error) {
data, err := json.MarshalIndent(p, "", " ")
if err != nil {
return []byte{}, err
}
return data, nil
}

func getDiscordCreatePayload(p *api.CreatePayload, meta *DiscordMeta) (*DiscordPayload, error) {
// created tag/branch
refName := git.RefEndName(p.Ref)
title := fmt.Sprintf("[%s] %s %s created", p.Repo.FullName, p.RefType, refName)

return &DiscordPayload{
Username: meta.Username,
AvatarURL: meta.IconURL,
Embeds: []DiscordEmbed{
{
Title: title,
URL: p.Repo.HTMLURL + "/src/" + refName,
Color: successColor,
Author: DiscordEmbedAuthor{
Name: p.Sender.UserName,
URL: setting.AppURL + p.Sender.UserName,
IconURL: p.Sender.AvatarURL,
},
},
},
}, nil
}

func getDiscordPushPayload(p *api.PushPayload, meta *DiscordMeta) (*DiscordPayload, error) {
var (
branchName = git.RefEndName(p.Ref)
commitDesc string
)

var titleLink string
if len(p.Commits) == 1 {
commitDesc = "1 new commit"
titleLink = p.Commits[0].URL
} else {
commitDesc = fmt.Sprintf("%d new commits", len(p.Commits))
titleLink = p.CompareURL
}
if titleLink == "" {
titleLink = p.Repo.HTMLURL + "/src/" + 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 {
text += fmt.Sprintf("[%s](%s) %s - %s", commit.ID[:7], commit.URL,
strings.TrimRight(commit.Message, "\r\n"), commit.Author.Name)
// add linebreak to each commit but the last
if i < len(p.Commits)-1 {
text += "\n"
}
}

fmt.Println(text)

return &DiscordPayload{
Username: meta.Username,
AvatarURL: meta.IconURL,
Embeds: []DiscordEmbed{
{
Title: title,
Description: text,
URL: titleLink,
Color: successColor,
Author: DiscordEmbedAuthor{
Name: p.Sender.UserName,
URL: setting.AppURL + p.Sender.UserName,
IconURL: p.Sender.AvatarURL,
},
},
},
}, nil
}

func getDiscordPullRequestPayload(p *api.PullRequestPayload, meta *DiscordMeta) (*DiscordPayload, error) {
var text, title string
var color int
switch p.Action {
case api.HookIssueOpened:
title = fmt.Sprintf("[%s] Pull request opened: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueClosed:
if p.PullRequest.HasMerged {
title = fmt.Sprintf("[%s] Pull request merged: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
color = successColor
} else {
title = fmt.Sprintf("[%s] Pull request closed: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
color = failedColor
}
text = p.PullRequest.Body
case api.HookIssueReOpened:
title = fmt.Sprintf("[%s] Pull request re-opened: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueEdited:
title = fmt.Sprintf("[%s] Pull request edited: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueAssigned:
title = fmt.Sprintf("[%s] Pull request assigned to %s: #%d %s", p.Repository.FullName,
p.PullRequest.Assignee.UserName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = successColor
case api.HookIssueUnassigned:
title = fmt.Sprintf("[%s] Pull request unassigned: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueLabelUpdated:
title = fmt.Sprintf("[%s] Pull request labels updated: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueLabelCleared:
title = fmt.Sprintf("[%s] Pull request labels cleared: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
case api.HookIssueSynchronized:
title = fmt.Sprintf("[%s] Pull request synchronized: #%d %s", p.Repository.FullName, p.Index, p.PullRequest.Title)
text = p.PullRequest.Body
color = warnColor
}

return &DiscordPayload{
Username: meta.Username,
AvatarURL: meta.IconURL,
Embeds: []DiscordEmbed{
{
Title: title,
Description: text,
URL: p.PullRequest.HTMLURL,
Color: color,
Author: DiscordEmbedAuthor{
Name: p.Sender.UserName,
URL: setting.AppURL + p.Sender.UserName,
IconURL: p.Sender.AvatarURL,
},
},
},
}, nil
}

// GetDiscordPayload converts a discord webhook into a DiscordPayload
func GetDiscordPayload(p api.Payloader, event HookEventType, meta string) (*DiscordPayload, error) {
s := new(DiscordPayload)

discord := &DiscordMeta{}
if err := json.Unmarshal([]byte(meta), &discord); err != nil {
return s, errors.New("GetDiscordPayload meta json:" + err.Error())
}

switch event {
case HookEventCreate:
return getDiscordCreatePayload(p.(*api.CreatePayload), discord)
case HookEventPush:
return getDiscordPushPayload(p.(*api.PushPayload), discord)
case HookEventPullRequest:
return getDiscordPullRequestPayload(p.(*api.PullRequestPayload), discord)
}

return s, nil
}
13 changes: 13 additions & 0 deletions modules/auth/repo_form.go
Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,19 @@ func (f *NewSlackHookForm) Validate(ctx *macaron.Context, errs binding.Errors) b
return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewDiscordHookForm form for creating discord hook
type NewDiscordHookForm struct {
PayloadURL string `binding:"Required;ValidUrl"`
Username string
IconURL string
WebhookForm
}

// Validate validates the fields
func (f *NewDiscordHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
return validate(errs, ctx.Data, f, ctx.Locale)
}

// .___
// | | ______ ________ __ ____
// | |/ ___// ___/ | \_/ __ \
Expand Down
2 changes: 1 addition & 1 deletion modules/setting/setting.go
Original file line number Diff line number Diff line change
Expand Up @@ -1367,7 +1367,7 @@ func newWebhookService() {
Webhook.QueueLength = sec.Key("QUEUE_LENGTH").MustInt(1000)
Webhook.DeliverTimeout = sec.Key("DELIVER_TIMEOUT").MustInt(5)
Webhook.SkipTLSVerify = sec.Key("SKIP_TLS_VERIFY").MustBool()
Webhook.Types = []string{"gitea", "gogs", "slack"}
Webhook.Types = []string{"gitea", "gogs", "slack", "discord"}
Webhook.PagingNum = sec.Key("PAGING_NUM").MustInt(10)
}

Expand Down
3 changes: 3 additions & 0 deletions options/locale/locale_en-US.ini
Original file line number Diff line number Diff line change
Expand Up @@ -879,6 +879,8 @@ settings.content_type = Content Type
settings.secret = Secret
settings.slack_username = Username
settings.slack_icon_url = Icon URL
settings.discord_username = Username
settings.discord_icon_url = Icon URL
settings.slack_color = Color
settings.event_desc = When should this webhook be triggered?
settings.event_push_only = Just the <code>push</code> event.
Expand All @@ -902,6 +904,7 @@ settings.add_slack_hook_desc = Add <a href="%s">Slack</a> integration to your re
settings.slack_token = Token
settings.slack_domain = Domain
settings.slack_channel = Channel
settings.add_discord_hook_desc = Add <a href="%s">Discord</a> integration to your repository.
settings.deploy_keys = Deploy Keys
settings.add_deploy_key = Add Deploy Key
settings.deploy_key_desc = Deploy keys have read-only access. They are not the same as personal account SSH keys.
Expand Down
Binary file added public/img/discord.png
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