forgejo/services/webhook/msteams.go
zeripath bbffcc3aec
Multiple Escaping Improvements (#17551)
There are multiple places where Gitea does not properly escape URLs that it is building and there are multiple places where it builds urls when there is already a simpler function available to use this.
    
This is an extensive PR attempting to fix these issues.

1. The first commit in this PR looks through all href, src and links in the Gitea codebase and has attempted to catch all the places where there is potentially incomplete escaping.
2. Whilst doing this we will prefer to use functions that create URLs over recreating them by hand.
3. All uses of strings should be directly escaped - even if they are not currently expected to contain escaping characters. The main benefit to doing this will be that we can consider relaxing the constraints on user names and reponames in future. 
4. The next commit looks at escaping in the wiki and re-considers the urls that are used there. Using the improved escaping here wiki files containing '/'. (This implementation will currently still place all of the wiki files the root directory of the repo but this would not be difficult to change.)
5. The title generation in feeds is now properly escaped.
6. EscapePound is no longer needed - urls should be PathEscaped / QueryEscaped as necessary but then re-escaped with Escape when creating html with locales Signed-off-by: Andrew Thornton <art27@cantab.net>

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-11-16 18:18:25 +00:00

330 lines
8.5 KiB
Go

// Copyright 2019 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 (
"fmt"
"strings"
webhook_model "code.gitea.io/gitea/models/webhook"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/json"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
)
type (
// MSTeamsFact for Fact Structure
MSTeamsFact struct {
Name string `json:"name"`
Value string `json:"value"`
}
// MSTeamsSection is a MessageCard section
MSTeamsSection struct {
ActivityTitle string `json:"activityTitle"`
ActivitySubtitle string `json:"activitySubtitle"`
ActivityImage string `json:"activityImage"`
Facts []MSTeamsFact `json:"facts"`
Text string `json:"text"`
}
// MSTeamsAction is an action (creates buttons, links etc)
MSTeamsAction struct {
Type string `json:"@type"`
Name string `json:"name"`
Targets []MSTeamsActionTarget `json:"targets,omitempty"`
}
// MSTeamsActionTarget is the actual link to follow, etc
MSTeamsActionTarget struct {
Os string `json:"os"`
URI string `json:"uri"`
}
// MSTeamsPayload is the parent object
MSTeamsPayload struct {
Type string `json:"@type"`
Context string `json:"@context"`
ThemeColor string `json:"themeColor"`
Title string `json:"title"`
Summary string `json:"summary"`
Sections []MSTeamsSection `json:"sections"`
PotentialAction []MSTeamsAction `json:"potentialAction"`
}
)
// JSONPayload Marshals the MSTeamsPayload to json
func (m *MSTeamsPayload) JSONPayload() ([]byte, error) {
data, err := json.MarshalIndent(m, "", " ")
if err != nil {
return []byte{}, err
}
return data, nil
}
var (
_ PayloadConvertor = &MSTeamsPayload{}
)
// Create implements PayloadConvertor Create method
func (m *MSTeamsPayload) Create(p *api.CreatePayload) (api.Payloader, error) {
// created tag/branch
refName := git.RefEndName(p.Ref)
title := fmt.Sprintf("[%s] %s %s created", p.Repo.FullName, p.RefType, refName)
return createMSTeamsPayload(
p.Repo,
p.Sender,
title,
"",
p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName),
greenColor,
&MSTeamsFact{fmt.Sprintf("%s:", p.RefType), refName},
), nil
}
// Delete implements PayloadConvertor Delete method
func (m *MSTeamsPayload) Delete(p *api.DeletePayload) (api.Payloader, error) {
// deleted tag/branch
refName := git.RefEndName(p.Ref)
title := fmt.Sprintf("[%s] %s %s deleted", p.Repo.FullName, p.RefType, refName)
return createMSTeamsPayload(
p.Repo,
p.Sender,
title,
"",
p.Repo.HTMLURL+"/src/"+util.PathEscapeSegments(refName),
yellowColor,
&MSTeamsFact{fmt.Sprintf("%s:", p.RefType), refName},
), nil
}
// Fork implements PayloadConvertor Fork method
func (m *MSTeamsPayload) Fork(p *api.ForkPayload) (api.Payloader, error) {
title := fmt.Sprintf("%s is forked to %s", p.Forkee.FullName, p.Repo.FullName)
return createMSTeamsPayload(
p.Repo,
p.Sender,
title,
"",
p.Repo.HTMLURL,
greenColor,
&MSTeamsFact{"Forkee:", p.Forkee.FullName},
), nil
}
// Push implements PayloadConvertor Push method
func (m *MSTeamsPayload) Push(p *api.PushPayload) (api.Payloader, 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/" + 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 {
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\n"
}
}
return createMSTeamsPayload(
p.Repo,
p.Sender,
title,
text,
titleLink,
greenColor,
&MSTeamsFact{"Commit count:", fmt.Sprintf("%d", len(p.Commits))},
), nil
}
// Issue implements PayloadConvertor Issue method
func (m *MSTeamsPayload) Issue(p *api.IssuePayload) (api.Payloader, error) {
title, _, attachmentText, color := getIssuesPayloadInfo(p, noneLinkFormatter, false)
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
attachmentText,
p.Issue.HTMLURL,
color,
&MSTeamsFact{"Issue #:", fmt.Sprintf("%d", p.Issue.ID)},
), nil
}
// IssueComment implements PayloadConvertor IssueComment method
func (m *MSTeamsPayload) IssueComment(p *api.IssueCommentPayload) (api.Payloader, error) {
title, _, color := getIssueCommentPayloadInfo(p, noneLinkFormatter, false)
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
p.Comment.Body,
p.Comment.HTMLURL,
color,
&MSTeamsFact{"Issue #:", fmt.Sprintf("%d", p.Issue.ID)},
), nil
}
// PullRequest implements PayloadConvertor PullRequest method
func (m *MSTeamsPayload) PullRequest(p *api.PullRequestPayload) (api.Payloader, error) {
title, _, attachmentText, color := getPullRequestPayloadInfo(p, noneLinkFormatter, false)
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
attachmentText,
p.PullRequest.HTMLURL,
color,
&MSTeamsFact{"Pull request #:", fmt.Sprintf("%d", p.PullRequest.ID)},
), nil
}
// Review implements PayloadConvertor Review method
func (m *MSTeamsPayload) Review(p *api.PullRequestPayload, event webhook_model.HookEventType) (api.Payloader, error) {
var text, title string
var color int
switch p.Action {
case api.HookIssueReviewed:
action, err := parseHookPullRequestEventType(event)
if err != nil {
return nil, 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_model.HookEventPullRequestReviewApproved:
color = greenColor
case webhook_model.HookEventPullRequestReviewRejected:
color = redColor
case webhook_model.HookEventPullRequestComment:
color = greyColor
default:
color = yellowColor
}
}
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
text,
p.PullRequest.HTMLURL,
color,
&MSTeamsFact{"Pull request #:", fmt.Sprintf("%d", p.PullRequest.ID)},
), nil
}
// Repository implements PayloadConvertor Repository method
func (m *MSTeamsPayload) Repository(p *api.RepositoryPayload) (api.Payloader, 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 = yellowColor
}
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
"",
url,
color,
nil,
), nil
}
// Release implements PayloadConvertor Release method
func (m *MSTeamsPayload) Release(p *api.ReleasePayload) (api.Payloader, error) {
title, color := getReleasePayloadInfo(p, noneLinkFormatter, false)
return createMSTeamsPayload(
p.Repository,
p.Sender,
title,
"",
p.Release.URL,
color,
&MSTeamsFact{"Tag:", p.Release.TagName},
), nil
}
// GetMSTeamsPayload converts a MSTeams webhook into a MSTeamsPayload
func GetMSTeamsPayload(p api.Payloader, event webhook_model.HookEventType, meta string) (api.Payloader, error) {
return convertPayloader(new(MSTeamsPayload), p, event)
}
func createMSTeamsPayload(r *api.Repository, s *api.User, title, text, actionTarget string, color int, fact *MSTeamsFact) *MSTeamsPayload {
facts := []MSTeamsFact{
{
Name: "Repository:",
Value: r.FullName,
},
}
if fact != nil {
facts = append(facts, *fact)
}
return &MSTeamsPayload{
Type: "MessageCard",
Context: "https://schema.org/extensions",
ThemeColor: fmt.Sprintf("%x", color),
Title: title,
Summary: title,
Sections: []MSTeamsSection{
{
ActivityTitle: s.FullName,
ActivitySubtitle: s.UserName,
ActivityImage: s.AvatarURL,
Text: text,
Facts: facts,
},
},
PotentialAction: []MSTeamsAction{
{
Type: "OpenUri",
Name: "View in Gitea",
Targets: []MSTeamsActionTarget{
{
Os: "default",
URI: actionTarget,
},
},
},
},
}
}