6ea6f224b8
This commit corrects some cases in the discord webhook payload that do not align with the discord documentation
367 lines
11 KiB
Go
367 lines
11 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package webhook
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import (
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"context"
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"errors"
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"fmt"
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"html/template"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"unicode/utf8"
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webhook_model "code.gitea.io/gitea/models/webhook"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/util"
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webhook_module "code.gitea.io/gitea/modules/webhook"
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gitea_context "code.gitea.io/gitea/services/context"
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"code.gitea.io/gitea/services/forms"
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"code.gitea.io/gitea/services/webhook/shared"
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"gitea.com/go-chi/binding"
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)
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type discordHandler struct{}
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func (discordHandler) Type() webhook_module.HookType { return webhook_module.DISCORD }
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func (discordHandler) Icon(size int) template.HTML { return shared.ImgIcon("discord.png", size) }
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type discordForm struct {
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forms.WebhookCoreForm
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PayloadURL string `binding:"Required;ValidUrl"`
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Username string `binding:"Required;MaxSize(80)"`
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IconURL string `binding:"ValidUrl"`
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}
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var _ binding.Validator = &discordForm{}
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// Validate implements binding.Validator.
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func (d *discordForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
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ctx := gitea_context.GetWebContext(req)
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if len([]rune(d.IconURL)) > 2048 {
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errs = append(errs, binding.Error{
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FieldNames: []string{"IconURL"},
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Message: ctx.Locale.TrString("repo.settings.discord_icon_url.exceeds_max_length"),
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})
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}
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return errs
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}
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func (discordHandler) UnmarshalForm(bind func(any)) forms.WebhookForm {
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var form discordForm
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bind(&form)
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return forms.WebhookForm{
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WebhookCoreForm: form.WebhookCoreForm,
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URL: form.PayloadURL,
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ContentType: webhook_model.ContentTypeJSON,
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Secret: "",
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HTTPMethod: http.MethodPost,
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Metadata: &DiscordMeta{
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Username: form.Username,
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IconURL: form.IconURL,
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},
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}
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}
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type (
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// DiscordEmbedFooter for Embed Footer Structure.
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DiscordEmbedFooter struct {
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Text string `json:"text,omitempty"`
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}
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// DiscordEmbedAuthor for Embed Author Structure
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DiscordEmbedAuthor struct {
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Name string `json:"name"`
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URL string `json:"url"`
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IconURL string `json:"icon_url"`
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}
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// DiscordEmbedField for Embed Field Structure
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DiscordEmbedField struct {
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Name string `json:"name"`
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Value string `json:"value"`
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}
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// DiscordEmbed is for Embed Structure
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DiscordEmbed struct {
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Title string `json:"title"`
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Description string `json:"description"`
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URL string `json:"url"`
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Color int `json:"color"`
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Footer DiscordEmbedFooter `json:"footer"`
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Author DiscordEmbedAuthor `json:"author"`
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Fields []DiscordEmbedField `json:"fields,omitempty"`
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}
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// DiscordPayload represents
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DiscordPayload struct {
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Wait bool `json:"-"`
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Content string `json:"-"`
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Username string `json:"username"`
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AvatarURL string `json:"avatar_url,omitempty"`
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TTS bool `json:"-"`
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Embeds []DiscordEmbed `json:"embeds"`
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}
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// DiscordMeta contains the discord metadata
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DiscordMeta struct {
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Username string `json:"username"`
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IconURL string `json:"icon_url"`
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}
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)
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// Metadata returns discord metadata
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func (discordHandler) Metadata(w *webhook_model.Webhook) any {
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s := &DiscordMeta{}
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if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
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log.Error("discordHandler.Metadata(%d): %v", w.ID, err)
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}
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return s
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}
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func color(clr string) int {
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if clr != "" {
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clr = strings.TrimLeft(clr, "#")
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if s, err := strconv.ParseInt(clr, 16, 32); err == nil {
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return int(s)
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}
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}
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return 0
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}
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var (
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greenColor = color("1ac600")
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greenColorLight = color("bfe5bf")
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yellowColor = color("ffd930")
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greyColor = color("4f545c")
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purpleColor = color("7289da")
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orangeColor = color("eb6420")
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orangeColorLight = color("e68d60")
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redColor = color("ff3232")
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)
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// Create implements PayloadConvertor Create method
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func (d discordConvertor) Create(p *api.CreatePayload) (DiscordPayload, error) {
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// created tag/branch
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refName := git.RefName(p.Ref).ShortName()
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title := fmt.Sprintf("[%s] %s %s created", p.Repo.FullName, p.RefType, refName)
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return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName), greenColor), nil
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}
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// Delete implements PayloadConvertor Delete method
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func (d discordConvertor) Delete(p *api.DeletePayload) (DiscordPayload, error) {
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// deleted tag/branch
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refName := git.RefName(p.Ref).ShortName()
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title := fmt.Sprintf("[%s] %s %s deleted", p.Repo.FullName, p.RefType, refName)
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return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName), redColor), nil
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}
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// Fork implements PayloadConvertor Fork method
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func (d discordConvertor) Fork(p *api.ForkPayload) (DiscordPayload, error) {
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title := fmt.Sprintf("%s is forked to %s", p.Forkee.FullName, p.Repo.FullName)
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return d.createPayload(p.Sender, title, "", p.Repo.HTMLURL, greenColor), nil
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}
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// Push implements PayloadConvertor Push method
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func (d discordConvertor) Push(p *api.PushPayload) (DiscordPayload, error) {
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var (
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branchName = git.RefName(p.Ref).ShortName()
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commitDesc string
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)
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var titleLink string
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if p.TotalCommits == 1 {
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commitDesc = "1 new commit"
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titleLink = p.Commits[0].URL
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} else {
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commitDesc = fmt.Sprintf("%d new commits", p.TotalCommits)
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titleLink = p.CompareURL
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}
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if titleLink == "" {
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titleLink = p.Repo.HTMLURL + "/src/" + util.PathEscapeSegments(branchName)
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}
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title := fmt.Sprintf("[%s:%s] %s", p.Repo.FullName, branchName, commitDesc)
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var text string
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// for each commit, generate attachment text
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for i, commit := range p.Commits {
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// limit the commit message display to just the summary, otherwise it would be hard to read
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message := strings.TrimRight(strings.SplitN(commit.Message, "\n", 1)[0], "\r")
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// a limit of 50 is set because GitHub does the same
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if utf8.RuneCountInString(message) > 50 {
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message = fmt.Sprintf("%.47s...", message)
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}
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text += fmt.Sprintf("[%s](%s) %s - %s", commit.ID[:7], commit.URL, message, commit.Author.Name)
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// add linebreak to each commit but the last
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if i < len(p.Commits)-1 {
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text += "\n"
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}
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}
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return d.createPayload(p.Sender, title, text, titleLink, greenColor), nil
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}
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// Issue implements PayloadConvertor Issue method
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func (d discordConvertor) Issue(p *api.IssuePayload) (DiscordPayload, error) {
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title, _, text, color := getIssuesPayloadInfo(p, noneLinkFormatter, false)
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return d.createPayload(p.Sender, title, text, p.Issue.HTMLURL, color), nil
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}
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// IssueComment implements PayloadConvertor IssueComment method
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func (d discordConvertor) IssueComment(p *api.IssueCommentPayload) (DiscordPayload, error) {
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title, _, color := getIssueCommentPayloadInfo(p, noneLinkFormatter, false)
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return d.createPayload(p.Sender, title, p.Comment.Body, p.Comment.HTMLURL, color), nil
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}
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// PullRequest implements PayloadConvertor PullRequest method
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func (d discordConvertor) PullRequest(p *api.PullRequestPayload) (DiscordPayload, error) {
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title, _, text, color := getPullRequestPayloadInfo(p, noneLinkFormatter, false)
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return d.createPayload(p.Sender, title, text, p.PullRequest.HTMLURL, color), nil
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}
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// Review implements PayloadConvertor Review method
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func (d discordConvertor) Review(p *api.PullRequestPayload, event webhook_module.HookEventType) (DiscordPayload, error) {
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var text, title string
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var color int
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if p.Action == api.HookIssueReviewed {
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action, err := parseHookPullRequestEventType(event)
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if err != nil {
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return DiscordPayload{}, err
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}
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title = fmt.Sprintf("[%s] Pull request review %s: #%d %s", p.Repository.FullName, action, p.Index, p.PullRequest.Title)
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text = p.Review.Content
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switch event {
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case webhook_module.HookEventPullRequestReviewApproved:
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color = greenColor
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case webhook_module.HookEventPullRequestReviewRejected:
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color = redColor
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case webhook_module.HookEventPullRequestReviewComment:
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color = greyColor
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default:
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color = yellowColor
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}
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}
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return d.createPayload(p.Sender, title, text, p.PullRequest.HTMLURL, color), nil
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}
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// Repository implements PayloadConvertor Repository method
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func (d discordConvertor) Repository(p *api.RepositoryPayload) (DiscordPayload, error) {
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var title, url string
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var color int
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switch p.Action {
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case api.HookRepoCreated:
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title = fmt.Sprintf("[%s] Repository created", p.Repository.FullName)
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url = p.Repository.HTMLURL
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color = greenColor
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case api.HookRepoDeleted:
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title = fmt.Sprintf("[%s] Repository deleted", p.Repository.FullName)
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color = redColor
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}
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return d.createPayload(p.Sender, title, "", url, color), nil
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}
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// Wiki implements PayloadConvertor Wiki method
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func (d discordConvertor) Wiki(p *api.WikiPayload) (DiscordPayload, error) {
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text, color, _ := getWikiPayloadInfo(p, noneLinkFormatter, false)
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htmlLink := p.Repository.HTMLURL + "/wiki/" + url.PathEscape(p.Page)
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var description string
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if p.Action != api.HookWikiDeleted {
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description = p.Comment
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}
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return d.createPayload(p.Sender, text, description, htmlLink, color), nil
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}
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// Release implements PayloadConvertor Release method
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func (d discordConvertor) Release(p *api.ReleasePayload) (DiscordPayload, error) {
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text, color := getReleasePayloadInfo(p, noneLinkFormatter, false)
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return d.createPayload(p.Sender, text, p.Release.Note, p.Release.HTMLURL, color), nil
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}
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func (d discordConvertor) Package(p *api.PackagePayload) (DiscordPayload, error) {
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text, color := getPackagePayloadInfo(p, noneLinkFormatter, false)
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return d.createPayload(p.Sender, text, "", p.Package.HTMLURL, color), nil
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}
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type discordConvertor struct {
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Username string
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AvatarURL string
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}
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var _ shared.PayloadConvertor[DiscordPayload] = discordConvertor{}
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func (discordHandler) NewRequest(ctx context.Context, w *webhook_model.Webhook, t *webhook_model.HookTask) (*http.Request, []byte, error) {
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meta := &DiscordMeta{}
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if err := json.Unmarshal([]byte(w.Meta), meta); err != nil {
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return nil, nil, fmt.Errorf("discordHandler.NewRequest meta json: %w", err)
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}
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sc := discordConvertor{
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Username: meta.Username,
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AvatarURL: meta.IconURL,
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}
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return shared.NewJSONRequest(sc, w, t, true)
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}
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func parseHookPullRequestEventType(event webhook_module.HookEventType) (string, error) {
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switch event {
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case webhook_module.HookEventPullRequestReviewApproved:
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return "approved", nil
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case webhook_module.HookEventPullRequestReviewRejected:
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return "rejected", nil
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case webhook_module.HookEventPullRequestReviewComment:
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return "comment", nil
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default:
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return "", errors.New("unknown event type")
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}
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}
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func (d discordConvertor) createPayload(s *api.User, title, text, url string, color int) DiscordPayload {
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if len([]rune(title)) > 256 {
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title = fmt.Sprintf("%.253s...", title)
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}
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if len([]rune(text)) > 4096 {
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text = fmt.Sprintf("%.4093s...", text)
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}
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return DiscordPayload{
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Username: d.Username,
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AvatarURL: d.AvatarURL,
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Embeds: []DiscordEmbed{
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{
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Title: title,
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Description: text,
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URL: url,
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Color: color,
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Author: DiscordEmbedAuthor{
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Name: s.UserName,
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URL: setting.AppURL + s.UserName,
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IconURL: s.AvatarURL,
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},
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},
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},
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}
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}
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