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[MM-58492][MM-58523] Fixed some access control bugs around archived channels by replacing the permission check with HasPermissionToReadChannel (#27409)

Просмотр исходного кода 
* [MM-58492][MM-58523] Fixed some access control bugs around archived channels by replacing the permission check with HasPermissionToReadChannel

* Fix lint, add ChannelId to uploads

* Fix MMCTL tests and remove unnecessary check for the error message that doesn't work anyways

* Include channel map for getting flagged posts

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Этот коммит содержится в:
Devin Binnie
2024-07-29 10:05:20 -04:00
коммит произвёл GitHub
родитель 6ddf796384
Коммит aa85a13c8f
17 изменённых файлов: 162 добавлений и 43 удалений
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7
server/channels/api4/channel.go
Просмотреть файл

@@ -758,7 +758,12 @@ func getPinnedPosts(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), c.Params.ChannelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, c.Params.ChannelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}

7
server/channels/api4/channel_bookmark.go
Просмотреть файл

@@ -391,7 +391,12 @@ func listChannelBookmarksForChannel(c *Context, w http.ResponseWriter, r *http.R
return
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), c.Params.ChannelId, model.PermissionReadChannelContent) {
channel, appErr := c.App.GetChannel(c.AppContext, c.Params.ChannelId)
if appErr != nil {
c.Err = appErr
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}

2
server/channels/api4/channel_bookmark_test.go
Просмотреть файл

@@ -1375,7 +1375,7 @@ func TestListChannelBookmarksForChannel(t *testing.T) {
// an open channel for which the guest is a member but the basic
// user is not
onlyGuestChannel := th.CreateChannelWithClient(th.SystemAdminClient, model.ChannelTypeOpen)
onlyGuestChannel := th.CreateChannelWithClient(th.SystemAdminClient, model.ChannelTypePrivate)
th.AddUserToChannel(guest, onlyGuestChannel)
guestBookmark := createBookmark("guest", onlyGuestChannel.Id)

2
server/channels/api4/channel_test.go
Просмотреть файл

@@ -2916,7 +2916,7 @@ func TestGetPinnedPosts(t *testing.T) {
_, resp, err = client.GetPinnedPosts(context.Background(), GenerateTestID(), "")
require.Error(t, err)
CheckForbiddenStatus(t, resp)
CheckNotFoundStatus(t, resp)
_, resp, err = client.GetPinnedPosts(context.Background(), "junk", "")
require.Error(t, err)

35
server/channels/api4/file.go
Просмотреть файл

@@ -483,7 +483,12 @@ func getFile(c *Context, w http.ResponseWriter, r *http.Request) {
}
audit.AddEventParameterAuditable(auditRec, "file", info)
perm := c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), info.ChannelId, model.PermissionReadChannelContent)
channel, err := c.App.GetChannel(c.AppContext, info.ChannelId)
if err != nil {
c.Err = err
return
}
perm := c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)
if info.CreatorId == model.BookmarkFileOwner {
if !perm {
c.SetPermissionError(model.PermissionReadChannelContent)
@@ -521,7 +526,12 @@ func getFileThumbnail(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
perm := c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), info.ChannelId, model.PermissionReadChannelContent)
channel, err := c.App.GetChannel(c.AppContext, info.ChannelId)
if err != nil {
c.Err = err
return
}
perm := c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)
if info.CreatorId == model.BookmarkFileOwner {
if !perm {
c.SetPermissionError(model.PermissionReadChannelContent)
@@ -570,7 +580,12 @@ func getFileLink(c *Context, w http.ResponseWriter, r *http.Request) {
}
audit.AddEventParameterAuditable(auditRec, "file", info)
perm := c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), info.ChannelId, model.PermissionReadChannelContent)
channel, err := c.App.GetChannel(c.AppContext, info.ChannelId)
if err != nil {
c.Err = err
return
}
perm := c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)
if info.CreatorId == model.BookmarkFileOwner {
if !perm {
c.SetPermissionError(model.PermissionReadChannelContent)
@@ -609,7 +624,12 @@ func getFilePreview(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
perm := c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), info.ChannelId, model.PermissionReadChannelContent)
channel, err := c.App.GetChannel(c.AppContext, info.ChannelId)
if err != nil {
c.Err = err
return
}
perm := c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)
if info.CreatorId == model.BookmarkFileOwner {
if !perm {
c.SetPermissionError(model.PermissionReadChannelContent)
@@ -649,7 +669,12 @@ func getFileInfo(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
perm := c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), info.ChannelId, model.PermissionReadChannelContent)
channel, err := c.App.GetChannel(c.AppContext, info.ChannelId)
if err != nil {
c.Err = err
return
}
perm := c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)
if info.CreatorId == model.BookmarkFileOwner {
if !perm {
c.SetPermissionError(model.PermissionReadChannelContent)

14
server/channels/api4/integration_action.go
Просмотреть файл

@@ -44,7 +44,12 @@ func doPostAction(c *Context, w http.ResponseWriter, r *http.Request) {
c.Err = model.NewAppError("DoPostAction", "api.post.do_action.action_integration.app_error", nil, "", http.StatusBadRequest).Wrap(err)
return
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), cookie.ChannelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, cookie.ChannelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}
@@ -108,7 +113,12 @@ func submitDialog(c *Context, w http.ResponseWriter, r *http.Request) {
submit.UserId = c.AppContext.Session().UserId
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), submit.ChannelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, submit.ChannelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}

2
server/channels/api4/integration_action_test.go
Просмотреть файл

@@ -334,7 +334,7 @@ func TestSubmitDialog(t *testing.T) {
submit.ChannelId = model.NewId()
submitResp, resp, err = client.SubmitInteractiveDialog(context.Background(), submit)
require.Error(t, err)
CheckForbiddenStatus(t, resp)
CheckNotFoundStatus(t, resp)
assert.Nil(t, submitResp)
submit.URL = ts.URL

79
server/channels/api4/post.go
Просмотреть файл

@@ -257,15 +257,20 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), channelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, channelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}
if !*c.App.Config().TeamSettings.ExperimentalViewArchivedChannels {
channel, err := c.App.GetChannel(c.AppContext, channelId)
if err != nil {
c.Err = err
channel, appErr := c.App.GetChannel(c.AppContext, channelId)
if appErr != nil {
c.Err = appErr
return
}
if channel.DeleteAt != 0 {
@@ -275,7 +280,6 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
}
var list *model.PostList
var err *model.AppError
etag := ""
if since > 0 {
@@ -341,7 +345,12 @@ func getPostsForChannelAroundLastUnread(c *Context, w http.ResponseWriter, r *ht
}
channelId := c.Params.ChannelId
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), channelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, channelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}
@@ -423,6 +432,20 @@ func getFlaggedPostsForUser(c *Context, w http.ResponseWriter, r *http.Request)
return
}
channelMap := make(map[string]*model.Channel)
channelIds := []string{}
for _, post := range posts.Posts {
channelIds = append(channelIds, post.ChannelId)
}
channels, err := c.App.GetChannels(c.AppContext, channelIds)
if err != nil {
c.Err = err
return
}
for _, channel := range channels {
channelMap[channel.Id] = channel
}
pl := model.NewPostList()
channelReadPermission := make(map[string]bool)
@@ -432,7 +455,11 @@ func getFlaggedPostsForUser(c *Context, w http.ResponseWriter, r *http.Request)
if !ok {
allowed = false
if c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), post.ChannelId, model.PermissionReadChannelContent) {
channel, ok := channelMap[post.ChannelId]
if !ok {
continue
}
if c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
allowed = true
}
@@ -523,23 +550,28 @@ func getPostsByIds(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
var posts = []*model.Post{}
channelMap := make(map[string]*model.Channel)
channelIds := []string{}
for _, post := range postsList {
var channel *model.Channel
if val, ok := channelMap[post.ChannelId]; ok {
channel = val
} else {
channel, appErr = c.App.GetChannel(c.AppContext, post.ChannelId)
if appErr != nil {
c.Err = appErr
return
}
channelMap[channel.Id] = channel
channelIds = append(channelIds, post.ChannelId)
}
channels, appErr := c.App.GetChannels(c.AppContext, channelIds)
if appErr != nil {
c.Err = appErr
return
}
for _, channel := range channels {
channelMap[channel.Id] = channel
}
var posts = []*model.Post{}
for _, post := range postsList {
channel, ok := channelMap[post.ChannelId]
if !ok {
continue
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), channel.Id, model.PermissionReadChannelContent) {
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
if channel.Type != model.ChannelTypeOpen || (channel.Type == model.ChannelTypeOpen && !c.App.SessionHasPermissionToTeam(*c.AppContext.Session(), channel.TeamId, model.PermissionReadPublicChannel)) {
continue
}
@@ -1031,7 +1063,12 @@ func saveIsPinnedPost(c *Context, w http.ResponseWriter, isPinned bool) {
auditRec.AddEventPriorState(post)
auditRec.AddEventObjectType("post")
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), post.ChannelId, model.PermissionReadChannelContent) {
channel, err := c.App.GetChannel(c.AppContext, post.ChannelId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}

2
server/channels/api4/post_test.go
Просмотреть файл

@@ -1831,7 +1831,7 @@ func TestGetPostsForChannel(t *testing.T) {
_, resp, err := client.GetPostsForChannel(context.Background(), model.NewId(), 0, 60, "", false, false)
require.Error(t, err)
CheckForbiddenStatus(t, resp)
CheckNotFoundStatus(t, resp)
client.Logout(context.Background())
_, resp, err = client.GetPostsForChannel(context.Background(), model.NewId(), 0, 60, "", false, false)

12
server/channels/api4/preference.go
Просмотреть файл

@@ -113,6 +113,7 @@ func updatePreferences(c *Context, w http.ResponseWriter, r *http.Request) {
}
var sanitizedPreferences model.Preferences
channelMap := make(map[string]*model.Channel)
for _, pref := range preferences {
if pref.Category == model.PreferenceCategoryFlaggedPost {
@@ -122,7 +123,16 @@ func updatePreferences(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
if !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), post.ChannelId, model.PermissionReadChannelContent) {
channel, ok := channelMap[post.ChannelId]
if !ok {
channel, err = c.App.GetChannel(c.AppContext, post.ChannelId)
if err != nil {
c.Err = err
return
}
}
if !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.SetPermissionError(model.PermissionReadChannelContent)
return
}

8
server/channels/api4/webhook.go
Просмотреть файл

@@ -51,7 +51,7 @@ func createIncomingHook(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
if channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), channel.Id, model.PermissionReadChannelContent) {
if channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.LogAudit("fail - bad channel permissions")
c.SetPermissionError(model.PermissionReadChannelContent)
return
@@ -155,7 +155,7 @@ func updateIncomingHook(c *Context, w http.ResponseWriter, r *http.Request) {
return
}
if channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), channel.Id, model.PermissionReadChannelContent) {
if channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel) {
c.LogAudit("fail - bad channel permissions")
c.SetPermissionError(model.PermissionReadChannelContent)
return
@@ -260,7 +260,7 @@ func getIncomingHook(c *Context, w http.ResponseWriter, r *http.Request) {
}
if !c.App.SessionHasPermissionToTeam(*c.AppContext.Session(), hook.TeamId, model.PermissionManageIncomingWebhooks) ||
(channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), hook.ChannelId, model.PermissionReadChannelContent)) {
(channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)) {
c.LogAudit("fail - bad permissions")
c.SetPermissionError(model.PermissionManageIncomingWebhooks)
return
@@ -314,7 +314,7 @@ func deleteIncomingHook(c *Context, w http.ResponseWriter, r *http.Request) {
auditRec.AddMeta("team_id", hook.TeamId)
if !c.App.SessionHasPermissionToTeam(*c.AppContext.Session(), hook.TeamId, model.PermissionManageIncomingWebhooks) ||
(channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToChannel(c.AppContext, *c.AppContext.Session(), hook.ChannelId, model.PermissionReadChannelContent)) {
(channel.Type != model.ChannelTypeOpen && !c.App.SessionHasPermissionToReadChannel(c.AppContext, *c.AppContext.Session(), channel)) {
c.LogAudit("fail - bad permissions")
c.SetPermissionError(model.PermissionManageIncomingWebhooks)
return

1
server/channels/app/app_iface.go
Просмотреть файл

@@ -1105,6 +1105,7 @@ type AppIface interface {
SessionHasPermissionToCreateJob(session model.Session, job *model.Job) (bool, *model.Permission)
SessionHasPermissionToGroup(session model.Session, groupID string, permission *model.Permission) bool
SessionHasPermissionToManageJob(session model.Session, job *model.Job) (bool, *model.Permission)
SessionHasPermissionToReadChannel(c request.CTX, session model.Session, channel *model.Channel) bool
SessionHasPermissionToReadJob(session model.Session, jobType string) (bool, *model.Permission)
SessionHasPermissionToTeam(session model.Session, teamID string, permission *model.Permission) bool
SessionHasPermissionToUser(session model.Session, userID string) bool

8
server/channels/app/authorization.go
Просмотреть файл

@@ -371,6 +371,14 @@ func (a *App) SessionHasPermissionToManageBot(rctx request.CTX, session model.Se
return nil
}
func (a *App) SessionHasPermissionToReadChannel(c request.CTX, session model.Session, channel *model.Channel) bool {
if session.IsUnrestricted() {
return true
}
return a.HasPermissionToReadChannel(c, session.UserId, channel)
}
func (a *App) HasPermissionToReadChannel(c request.CTX, userID string, channel *model.Channel) bool {
if !*a.Config().TeamSettings.ExperimentalViewArchivedChannels && channel.DeleteAt != 0 {
return false

17
server/channels/app/opentracing/opentracing_layer.go
Просмотреть файл

@@ -16443,6 +16443,23 @@ func (a *OpenTracingAppLayer) SessionHasPermissionToManageJob(session model.Sess
return resultVar0, resultVar1
}
func (a *OpenTracingAppLayer) SessionHasPermissionToReadChannel(c request.CTX, session model.Session, channel *model.Channel) bool {
origCtx := a.ctx
span, newCtx := tracing.StartSpanWithParentByContext(a.ctx, "app.SessionHasPermissionToReadChannel")
a.ctx = newCtx
a.app.Srv().Store().SetContext(newCtx)
defer func() {
a.app.Srv().Store().SetContext(origCtx)
a.ctx = origCtx
}()
defer span.Finish()
resultVar0 := a.app.SessionHasPermissionToReadChannel(c, session, channel)
return resultVar0
}
func (a *OpenTracingAppLayer) SessionHasPermissionToReadJob(session model.Session, jobType string) (bool, *model.Permission) {
origCtx := a.ctx
span, newCtx := tracing.StartSpanWithParentByContext(a.ctx, "app.SessionHasPermissionToReadJob")

2
server/channels/app/post.go
Просмотреть файл

@@ -2087,7 +2087,7 @@ func (a *App) GetPostIfAuthorized(c request.CTX, postID string, session *model.S
return nil, err
}
if !a.SessionHasPermissionToChannel(c, *session, channel.Id, model.PermissionReadChannelContent) {
if !a.SessionHasPermissionToReadChannel(c, *session, channel) {
if channel.Type == model.ChannelTypeOpen && !*a.Config().ComplianceSettings.Enable {
if !a.SessionHasPermissionToTeam(*session, channel.TeamId, model.PermissionReadPublicChannel) {
return nil, model.MakePermissionError(session, []*model.Permission{model.PermissionReadPublicChannel})

1
server/channels/app/upload.go
Просмотреть файл

@@ -271,6 +271,7 @@ func (a *App) UploadData(c request.CTX, us *model.UploadSession, rd io.Reader) (
}
info.CreatorId = us.UserId
info.ChannelId = us.ChannelId
info.Path = us.Path
info.RemoteId = model.NewString(us.RemoteId)
if us.ReqFileId != "" {

6
server/cmd/mmctl/commands/post_e2e_test.go
Просмотреть файл

@@ -19,7 +19,7 @@ func (s *MmctlE2ETestSuite) TestPostListCmd() {
channelName := model.NewRandomString(10)
channelDisplayName := "channelDisplayName"
channel, err := s.th.App.CreateChannel(s.th.Context, &model.Channel{Name: channelName, DisplayName: channelDisplayName, Type: model.ChannelTypeOpen, TeamId: s.th.BasicTeam.Id}, false)
channel, err := s.th.App.CreateChannel(s.th.Context, &model.Channel{Name: channelName, DisplayName: channelDisplayName, Type: model.ChannelTypePrivate, TeamId: s.th.BasicTeam.Id}, false)
s.Require().Nil(err)
post1, err := s.th.App.CreatePost(s.th.Context, &model.Post{Message: model.NewRandomString(15), UserId: s.th.BasicUser.Id, ChannelId: channel.Id}, channel, false, false)
@@ -65,7 +65,7 @@ func (s *MmctlE2ETestSuite) TestPostListCmd() {
err := postListCmdF(s.th.Client, cmd, []string{teamName + ":" + channelName})
s.Require().NotNil(err)
s.Require().Contains(err.Error(), "You do not have the appropriate permissions.")
//s.Require().Contains(err.Error(), "You do not have the appropriate permissions.")
})
s.RunForSystemAdminAndLocal("List all posts for a channel with since flag", func(c client.Client) {
@@ -104,7 +104,7 @@ func (s *MmctlE2ETestSuite) TestPostListCmd() {
err := postListCmdF(s.th.Client, cmd, []string{teamName + ":" + channelName})
s.Require().NotNil(err)
s.Require().Contains(err.Error(), "You do not have the appropriate permissions.")
//s.Require().Contains(err.Error(), "You do not have the appropriate permissions.")
})
}