mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-15 17:49:20 +08:00
307 lines
10 KiB
Go
307 lines
10 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package webhook
|
|
|
|
import (
|
|
"crypto/sha1"
|
|
"errors"
|
|
"fmt"
|
|
"html"
|
|
"net/http"
|
|
"net/url"
|
|
"regexp"
|
|
"strings"
|
|
|
|
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"
|
|
)
|
|
|
|
const matrixPayloadSizeLimit = 1024 * 64
|
|
|
|
// MatrixMeta contains the Matrix metadata
|
|
type MatrixMeta struct {
|
|
HomeserverURL string `json:"homeserver_url"`
|
|
Room string `json:"room_id"`
|
|
AccessToken string `json:"access_token"`
|
|
MessageType int `json:"message_type"`
|
|
}
|
|
|
|
var messageTypeText = map[int]string{
|
|
1: "m.notice",
|
|
2: "m.text",
|
|
}
|
|
|
|
// GetMatrixHook returns Matrix metadata
|
|
func GetMatrixHook(w *webhook_model.Webhook) *MatrixMeta {
|
|
s := &MatrixMeta{}
|
|
if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
|
|
log.Error("webhook.GetMatrixHook(%d): %v", w.ID, err)
|
|
}
|
|
return s
|
|
}
|
|
|
|
// MatrixPayloadUnsafe contains the (unsafe) payload for a Matrix room
|
|
type MatrixPayloadUnsafe struct {
|
|
MatrixPayloadSafe
|
|
AccessToken string `json:"access_token"`
|
|
}
|
|
|
|
var _ PayloadConvertor = &MatrixPayloadUnsafe{}
|
|
|
|
// safePayload "converts" a unsafe payload to a safe payload
|
|
func (m *MatrixPayloadUnsafe) safePayload() *MatrixPayloadSafe {
|
|
return &MatrixPayloadSafe{
|
|
Body: m.Body,
|
|
MsgType: m.MsgType,
|
|
Format: m.Format,
|
|
FormattedBody: m.FormattedBody,
|
|
Commits: m.Commits,
|
|
}
|
|
}
|
|
|
|
// MatrixPayloadSafe contains (safe) payload for a Matrix room
|
|
type MatrixPayloadSafe struct {
|
|
Body string `json:"body"`
|
|
MsgType string `json:"msgtype"`
|
|
Format string `json:"format"`
|
|
FormattedBody string `json:"formatted_body"`
|
|
Commits []*api.PayloadCommit `json:"io.gitea.commits,omitempty"`
|
|
}
|
|
|
|
// JSONPayload Marshals the MatrixPayloadUnsafe to json
|
|
func (m *MatrixPayloadUnsafe) JSONPayload() ([]byte, error) {
|
|
data, err := json.MarshalIndent(m, "", " ")
|
|
if err != nil {
|
|
return []byte{}, err
|
|
}
|
|
return data, nil
|
|
}
|
|
|
|
// MatrixLinkFormatter creates a link compatible with Matrix
|
|
func MatrixLinkFormatter(url, text string) string {
|
|
return fmt.Sprintf(`<a href="%s">%s</a>`, html.EscapeString(url), html.EscapeString(text))
|
|
}
|
|
|
|
// MatrixLinkToRef Matrix-formatter link to a repo ref
|
|
func MatrixLinkToRef(repoURL, ref string) string {
|
|
refName := git.RefEndName(ref)
|
|
switch {
|
|
case strings.HasPrefix(ref, git.BranchPrefix):
|
|
return MatrixLinkFormatter(repoURL+"/src/branch/"+util.PathEscapeSegments(refName), refName)
|
|
case strings.HasPrefix(ref, git.TagPrefix):
|
|
return MatrixLinkFormatter(repoURL+"/src/tag/"+util.PathEscapeSegments(refName), refName)
|
|
default:
|
|
return MatrixLinkFormatter(repoURL+"/src/commit/"+util.PathEscapeSegments(refName), refName)
|
|
}
|
|
}
|
|
|
|
// Create implements PayloadConvertor Create method
|
|
func (m *MatrixPayloadUnsafe) Create(p *api.CreatePayload) (api.Payloader, error) {
|
|
repoLink := MatrixLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
|
|
refLink := MatrixLinkToRef(p.Repo.HTMLURL, p.Ref)
|
|
text := fmt.Sprintf("[%s:%s] %s created by %s", repoLink, refLink, p.RefType, p.Sender.UserName)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Delete composes Matrix payload for delete a branch or tag.
|
|
func (m *MatrixPayloadUnsafe) Delete(p *api.DeletePayload) (api.Payloader, error) {
|
|
refName := git.RefEndName(p.Ref)
|
|
repoLink := MatrixLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
|
|
text := fmt.Sprintf("[%s:%s] %s deleted by %s", repoLink, refName, p.RefType, p.Sender.UserName)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Fork composes Matrix payload for forked by a repository.
|
|
func (m *MatrixPayloadUnsafe) Fork(p *api.ForkPayload) (api.Payloader, error) {
|
|
baseLink := MatrixLinkFormatter(p.Forkee.HTMLURL, p.Forkee.FullName)
|
|
forkLink := MatrixLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
|
|
text := fmt.Sprintf("%s is forked to %s", baseLink, forkLink)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Issue implements PayloadConvertor Issue method
|
|
func (m *MatrixPayloadUnsafe) Issue(p *api.IssuePayload) (api.Payloader, error) {
|
|
text, _, _, _ := getIssuesPayloadInfo(p, MatrixLinkFormatter, true)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// IssueComment implements PayloadConvertor IssueComment method
|
|
func (m *MatrixPayloadUnsafe) IssueComment(p *api.IssueCommentPayload) (api.Payloader, error) {
|
|
text, _, _ := getIssueCommentPayloadInfo(p, MatrixLinkFormatter, true)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Release implements PayloadConvertor Release method
|
|
func (m *MatrixPayloadUnsafe) Release(p *api.ReleasePayload) (api.Payloader, error) {
|
|
text, _ := getReleasePayloadInfo(p, MatrixLinkFormatter, true)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Push implements PayloadConvertor Push method
|
|
func (m *MatrixPayloadUnsafe) Push(p *api.PushPayload) (api.Payloader, error) {
|
|
var commitDesc string
|
|
|
|
if len(p.Commits) == 1 {
|
|
commitDesc = "1 commit"
|
|
} else {
|
|
commitDesc = fmt.Sprintf("%d commits", len(p.Commits))
|
|
}
|
|
|
|
repoLink := MatrixLinkFormatter(p.Repo.HTMLURL, p.Repo.FullName)
|
|
branchLink := MatrixLinkToRef(p.Repo.HTMLURL, p.Ref)
|
|
text := fmt.Sprintf("[%s] %s pushed %s to %s:<br>", repoLink, p.Pusher.UserName, commitDesc, branchLink)
|
|
|
|
// for each commit, generate a new line text
|
|
for i, commit := range p.Commits {
|
|
text += fmt.Sprintf("%s: %s - %s", MatrixLinkFormatter(commit.URL, commit.ID[:7]), commit.Message, commit.Author.Name)
|
|
// add linebreak to each commit but the last
|
|
if i < len(p.Commits)-1 {
|
|
text += "<br>"
|
|
}
|
|
|
|
}
|
|
|
|
return getMatrixPayloadUnsafe(text, p.Commits, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// PullRequest implements PayloadConvertor PullRequest method
|
|
func (m *MatrixPayloadUnsafe) PullRequest(p *api.PullRequestPayload) (api.Payloader, error) {
|
|
text, _, _, _ := getPullRequestPayloadInfo(p, MatrixLinkFormatter, true)
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Review implements PayloadConvertor Review method
|
|
func (m *MatrixPayloadUnsafe) Review(p *api.PullRequestPayload, event webhook_model.HookEventType) (api.Payloader, error) {
|
|
senderLink := MatrixLinkFormatter(setting.AppURL+url.PathEscape(p.Sender.UserName), p.Sender.UserName)
|
|
title := fmt.Sprintf("#%d %s", p.Index, p.PullRequest.Title)
|
|
titleLink := fmt.Sprintf("%s/pulls/%d", p.Repository.HTMLURL, p.Index)
|
|
repoLink := MatrixLinkFormatter(p.Repository.HTMLURL, p.Repository.FullName)
|
|
var text string
|
|
|
|
switch p.Action {
|
|
case api.HookIssueReviewed:
|
|
action, err := parseHookPullRequestEventType(event)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
text = fmt.Sprintf("[%s] Pull request review %s: [%s](%s) by %s", repoLink, action, title, titleLink, senderLink)
|
|
}
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// Repository implements PayloadConvertor Repository method
|
|
func (m *MatrixPayloadUnsafe) Repository(p *api.RepositoryPayload) (api.Payloader, error) {
|
|
senderLink := MatrixLinkFormatter(setting.AppURL+p.Sender.UserName, p.Sender.UserName)
|
|
repoLink := MatrixLinkFormatter(p.Repository.HTMLURL, p.Repository.FullName)
|
|
var text string
|
|
|
|
switch p.Action {
|
|
case api.HookRepoCreated:
|
|
text = fmt.Sprintf("[%s] Repository created by %s", repoLink, senderLink)
|
|
case api.HookRepoDeleted:
|
|
text = fmt.Sprintf("[%s] Repository deleted by %s", repoLink, senderLink)
|
|
}
|
|
|
|
return getMatrixPayloadUnsafe(text, nil, m.AccessToken, m.MsgType), nil
|
|
}
|
|
|
|
// GetMatrixPayload converts a Matrix webhook into a MatrixPayloadUnsafe
|
|
func GetMatrixPayload(p api.Payloader, event webhook_model.HookEventType, meta string) (api.Payloader, error) {
|
|
s := new(MatrixPayloadUnsafe)
|
|
|
|
matrix := &MatrixMeta{}
|
|
if err := json.Unmarshal([]byte(meta), &matrix); err != nil {
|
|
return s, errors.New("GetMatrixPayload meta json:" + err.Error())
|
|
}
|
|
|
|
s.AccessToken = matrix.AccessToken
|
|
s.MsgType = messageTypeText[matrix.MessageType]
|
|
|
|
return convertPayloader(s, p, event)
|
|
}
|
|
|
|
func getMatrixPayloadUnsafe(text string, commits []*api.PayloadCommit, accessToken, msgType string) *MatrixPayloadUnsafe {
|
|
p := MatrixPayloadUnsafe{}
|
|
p.AccessToken = accessToken
|
|
p.FormattedBody = text
|
|
p.Body = getMessageBody(text)
|
|
p.Format = "org.matrix.custom.html"
|
|
p.MsgType = msgType
|
|
p.Commits = commits
|
|
return &p
|
|
}
|
|
|
|
var urlRegex = regexp.MustCompile(`<a [^>]*?href="([^">]*?)">(.*?)</a>`)
|
|
|
|
func getMessageBody(htmlText string) string {
|
|
htmlText = urlRegex.ReplaceAllString(htmlText, "[$2]($1)")
|
|
htmlText = strings.ReplaceAll(htmlText, "<br>", "\n")
|
|
return htmlText
|
|
}
|
|
|
|
// getMatrixHookRequest creates a new request which contains an Authorization header.
|
|
// The access_token is removed from t.PayloadContent
|
|
func getMatrixHookRequest(w *webhook_model.Webhook, t *webhook_model.HookTask) (*http.Request, error) {
|
|
payloadunsafe := MatrixPayloadUnsafe{}
|
|
if err := json.Unmarshal([]byte(t.PayloadContent), &payloadunsafe); err != nil {
|
|
log.Error("Matrix Hook delivery failed: %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
payloadsafe := payloadunsafe.safePayload()
|
|
|
|
var payload []byte
|
|
var err error
|
|
if payload, err = json.MarshalIndent(payloadsafe, "", " "); err != nil {
|
|
return nil, err
|
|
}
|
|
if len(payload) >= matrixPayloadSizeLimit {
|
|
return nil, fmt.Errorf("getMatrixHookRequest: payload size %d > %d", len(payload), matrixPayloadSizeLimit)
|
|
}
|
|
t.PayloadContent = string(payload)
|
|
|
|
txnID, err := getMatrixTxnID(payload)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("getMatrixHookRequest: unable to hash payload: %+v", err)
|
|
}
|
|
|
|
url := fmt.Sprintf("%s/%s", w.URL, url.PathEscape(txnID))
|
|
|
|
req, err := http.NewRequest(w.HTTPMethod, url, strings.NewReader(string(payload)))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
req.Header.Set("Content-Type", "application/json")
|
|
req.Header.Add("Authorization", "Bearer "+payloadunsafe.AccessToken)
|
|
|
|
return req, nil
|
|
}
|
|
|
|
// getMatrixTxnID creates a txnID based on the payload to ensure idempotency
|
|
func getMatrixTxnID(payload []byte) (string, error) {
|
|
h := sha1.New()
|
|
_, err := h.Write(payload)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return fmt.Sprintf("%x", h.Sum(nil)), nil
|
|
}
|