mirror of
https://codeberg.org/forgejo/forgejo
synced 2024-11-22 09:54:24 +01:00
307 lines
9.8 KiB
Go
307 lines
9.8 KiB
Go
// Copyright 2014 The Gogs 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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"errors"
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"fmt"
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"regexp"
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"strings"
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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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webhook_module "code.gitea.io/gitea/modules/webhook"
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)
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// SlackMeta contains the slack metadata
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type SlackMeta struct {
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Channel string `json:"channel"`
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Username string `json:"username"`
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IconURL string `json:"icon_url"`
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Color string `json:"color"`
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}
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// GetSlackHook returns slack metadata
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func GetSlackHook(w *webhook_model.Webhook) *SlackMeta {
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s := &SlackMeta{}
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if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
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log.Error("webhook.GetSlackHook(%d): %v", w.ID, err)
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}
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return s
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}
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// SlackPayload contains the information about the slack channel
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type SlackPayload struct {
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Channel string `json:"channel"`
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Text string `json:"text"`
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Color string `json:"-"`
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Username string `json:"username"`
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IconURL string `json:"icon_url"`
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UnfurlLinks int `json:"unfurl_links"`
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LinkNames int `json:"link_names"`
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Attachments []SlackAttachment `json:"attachments"`
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}
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// SlackAttachment contains the slack message
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type SlackAttachment struct {
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Fallback string `json:"fallback"`
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Color string `json:"color"`
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Title string `json:"title"`
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TitleLink string `json:"title_link"`
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Text string `json:"text"`
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}
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// JSONPayload Marshals the SlackPayload to json
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func (s *SlackPayload) JSONPayload() ([]byte, error) {
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data, err := json.MarshalIndent(s, "", " ")
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if err != nil {
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return []byte{}, err
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}
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return data, nil
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}
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// SlackTextFormatter replaces &, <, > with HTML characters
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// see: https://api.slack.com/docs/formatting
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func SlackTextFormatter(s string) string {
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// replace & < >
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s = strings.ReplaceAll(s, "&", "&")
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s = strings.ReplaceAll(s, "<", "<")
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s = strings.ReplaceAll(s, ">", ">")
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return s
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}
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// SlackShortTextFormatter replaces &, <, > with HTML characters
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func SlackShortTextFormatter(s string) string {
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s = strings.Split(s, "\n")[0]
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// replace & < >
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s = strings.ReplaceAll(s, "&", "&")
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s = strings.ReplaceAll(s, "<", "<")
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s = strings.ReplaceAll(s, ">", ">")
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return s
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}
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// SlackLinkFormatter creates a link compatible with slack
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func SlackLinkFormatter(url, text string) string {
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return fmt.Sprintf("<%s|%s>", url, SlackTextFormatter(text))
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}
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// SlackLinkToRef slack-formatter link to a repo ref
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func SlackLinkToRef(repoURL, ref string) string {
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url := git.RefURL(repoURL, ref)
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refName := git.RefName(ref).ShortName()
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return SlackLinkFormatter(url, refName)
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}
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var _ PayloadConvertor = &SlackPayload{}
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// Create implements PayloadConvertor Create method
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func (s *SlackPayload) Create(p *api.CreatePayload) (api.Payloader, error) {
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repoLink := SlackLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
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refLink := SlackLinkToRef(p.Repo.HTMLURL, p.Ref)
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text := fmt.Sprintf("[%s:%s] %s created by %s", repoLink, refLink, p.RefType, p.Sender.UserName)
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return s.createPayload(text, nil), nil
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}
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// Delete composes Slack payload for delete a branch or tag.
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func (s *SlackPayload) Delete(p *api.DeletePayload) (api.Payloader, error) {
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refName := git.RefName(p.Ref).ShortName()
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repoLink := SlackLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
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text := fmt.Sprintf("[%s:%s] %s deleted by %s", repoLink, refName, p.RefType, p.Sender.UserName)
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return s.createPayload(text, nil), nil
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}
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// Fork composes Slack payload for forked by a repository.
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func (s *SlackPayload) Fork(p *api.ForkPayload) (api.Payloader, error) {
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baseLink := SlackLinkFormatter(p.Forkee.HTMLURL, p.Forkee.FullName)
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forkLink := SlackLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
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text := fmt.Sprintf("%s is forked to %s", baseLink, forkLink)
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return s.createPayload(text, nil), nil
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}
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// Issue implements PayloadConvertor Issue method
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func (s *SlackPayload) Issue(p *api.IssuePayload) (api.Payloader, error) {
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text, issueTitle, attachmentText, color := getIssuesPayloadInfo(p, SlackLinkFormatter, true)
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var attachments []SlackAttachment
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if attachmentText != "" {
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attachmentText = SlackTextFormatter(attachmentText)
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issueTitle = SlackTextFormatter(issueTitle)
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attachments = append(attachments, SlackAttachment{
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Color: fmt.Sprintf("%x", color),
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Title: issueTitle,
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TitleLink: p.Issue.HTMLURL,
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Text: attachmentText,
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})
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}
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return s.createPayload(text, attachments), nil
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}
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// IssueComment implements PayloadConvertor IssueComment method
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func (s *SlackPayload) IssueComment(p *api.IssueCommentPayload) (api.Payloader, error) {
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text, issueTitle, color := getIssueCommentPayloadInfo(p, SlackLinkFormatter, true)
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return s.createPayload(text, []SlackAttachment{{
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Color: fmt.Sprintf("%x", color),
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Title: issueTitle,
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TitleLink: p.Comment.HTMLURL,
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Text: SlackTextFormatter(p.Comment.Body),
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}}), nil
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}
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// Wiki implements PayloadConvertor Wiki method
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func (s *SlackPayload) Wiki(p *api.WikiPayload) (api.Payloader, error) {
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text, _, _ := getWikiPayloadInfo(p, SlackLinkFormatter, true)
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return s.createPayload(text, nil), nil
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}
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// Release implements PayloadConvertor Release method
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func (s *SlackPayload) Release(p *api.ReleasePayload) (api.Payloader, error) {
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text, _ := getReleasePayloadInfo(p, SlackLinkFormatter, true)
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return s.createPayload(text, nil), nil
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}
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// Push implements PayloadConvertor Push method
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func (s *SlackPayload) Push(p *api.PushPayload) (api.Payloader, error) {
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// n new commits
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var (
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commitDesc string
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commitString string
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)
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if p.TotalCommits == 1 {
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commitDesc = "1 new commit"
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} else {
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commitDesc = fmt.Sprintf("%d new commits", p.TotalCommits)
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}
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if len(p.CompareURL) > 0 {
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commitString = SlackLinkFormatter(p.CompareURL, commitDesc)
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} else {
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commitString = commitDesc
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}
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repoLink := SlackLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
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branchLink := SlackLinkToRef(p.Repo.HTMLURL, p.Ref)
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text := fmt.Sprintf("[%s:%s] %s pushed by %s", repoLink, branchLink, commitString, p.Pusher.UserName)
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var attachmentText 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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attachmentText += fmt.Sprintf("%s: %s - %s", SlackLinkFormatter(commit.URL, commit.ID[:7]), SlackShortTextFormatter(commit.Message), SlackTextFormatter(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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attachmentText += "\n"
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}
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}
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return s.createPayload(text, []SlackAttachment{{
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Color: s.Color,
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Title: p.Repo.HTMLURL,
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TitleLink: p.Repo.HTMLURL,
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Text: attachmentText,
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}}), nil
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}
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// PullRequest implements PayloadConvertor PullRequest method
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func (s *SlackPayload) PullRequest(p *api.PullRequestPayload) (api.Payloader, error) {
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text, issueTitle, attachmentText, color := getPullRequestPayloadInfo(p, SlackLinkFormatter, true)
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var attachments []SlackAttachment
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if attachmentText != "" {
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attachmentText = SlackTextFormatter(p.PullRequest.Body)
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issueTitle = SlackTextFormatter(issueTitle)
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attachments = append(attachments, SlackAttachment{
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Color: fmt.Sprintf("%x", color),
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Title: issueTitle,
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TitleLink: p.PullRequest.HTMLURL,
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Text: attachmentText,
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})
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}
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return s.createPayload(text, attachments), nil
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}
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// Review implements PayloadConvertor Review method
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func (s *SlackPayload) Review(p *api.PullRequestPayload, event webhook_module.HookEventType) (api.Payloader, error) {
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senderLink := SlackLinkFormatter(setting.AppURL+p.Sender.UserName, p.Sender.UserName)
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title := fmt.Sprintf("#%d %s", p.Index, p.PullRequest.Title)
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titleLink := fmt.Sprintf("%s/pulls/%d", p.Repository.HTMLURL, p.Index)
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repoLink := SlackLinkFormatter(p.Repository.HTMLURL, p.Repository.FullName)
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var text string
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switch p.Action {
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case api.HookIssueReviewed:
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action, err := parseHookPullRequestEventType(event)
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if err != nil {
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return nil, err
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}
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text = fmt.Sprintf("[%s] Pull request review %s: [%s](%s) by %s", repoLink, action, title, titleLink, senderLink)
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}
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return s.createPayload(text, nil), nil
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}
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// Repository implements PayloadConvertor Repository method
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func (s *SlackPayload) Repository(p *api.RepositoryPayload) (api.Payloader, error) {
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senderLink := SlackLinkFormatter(setting.AppURL+p.Sender.UserName, p.Sender.UserName)
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repoLink := SlackLinkFormatter(p.Repository.HTMLURL, p.Repository.FullName)
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var text string
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switch p.Action {
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case api.HookRepoCreated:
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text = fmt.Sprintf("[%s] Repository created by %s", repoLink, senderLink)
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case api.HookRepoDeleted:
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text = fmt.Sprintf("[%s] Repository deleted by %s", repoLink, senderLink)
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}
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return s.createPayload(text, nil), nil
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}
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func (s *SlackPayload) createPayload(text string, attachments []SlackAttachment) *SlackPayload {
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return &SlackPayload{
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Channel: s.Channel,
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Text: text,
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Username: s.Username,
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IconURL: s.IconURL,
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Attachments: attachments,
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}
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}
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// GetSlackPayload converts a slack webhook into a SlackPayload
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func GetSlackPayload(p api.Payloader, event webhook_module.HookEventType, meta string) (api.Payloader, error) {
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s := new(SlackPayload)
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slack := &SlackMeta{}
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if err := json.Unmarshal([]byte(meta), &slack); err != nil {
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return s, errors.New("GetSlackPayload meta json:" + err.Error())
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}
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s.Channel = slack.Channel
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s.Username = slack.Username
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s.IconURL = slack.IconURL
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s.Color = slack.Color
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return convertPayloader(s, p, event)
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}
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var slackChannel = regexp.MustCompile(`^#?[a-z0-9_-]{1,80}$`)
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// IsValidSlackChannel validates a channel name conforms to what slack expects:
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// https://api.slack.com/methods/conversations.rename#naming
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// Conversation names can only contain lowercase letters, numbers, hyphens, and underscores, and must be 80 characters or less.
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// Gitea accepts if it starts with a #.
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func IsValidSlackChannel(name string) bool {
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return slackChannel.MatchString(name)
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}
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