PLT-7718 Patch for files (#7564)

* Patch for files

* Fix merge

* Fix tests

* Fix another test

app/authorization.go

@@ -4,6 +4,7 @@
 package app
 
 import (
+	"net/http"
 	"strings"
 
 	l4g "github.com/alecthomas/log4go"
@@ -50,6 +51,8 @@ func (a *App) SessionHasPermissionToChannel(session model.Session, channelId str
 	channel, err := a.GetChannel(channelId)
 	if err == nil && channel.TeamId != "" {
 		return SessionHasPermissionToTeam(session, channel.TeamId, permission)
+	} else if err != nil && err.StatusCode == http.StatusNotFound {
+		return false
 	}
 
 	return SessionHasPermissionTo(session, permission)

app/file.go

@@ -291,8 +291,11 @@ func (a *App) UploadFiles(teamId string, channelId string, userId string, fileHe
 	return resStruct, nil
 }
 
-func (a *App) DoUploadFile(now time.Time, teamId string, channelId string, userId string, rawFilename string, data []byte) (*model.FileInfo, *model.AppError) {
+func (a *App) DoUploadFile(now time.Time, rawTeamId string, rawChannelId string, rawUserId string, rawFilename string, data []byte) (*model.FileInfo, *model.AppError) {
 	filename := filepath.Base(rawFilename)
+	teamId := filepath.Base(rawTeamId)
+	channelId := filepath.Base(rawChannelId)
+	userId := filepath.Base(rawUserId)
 
 	info, err := model.GetInfoForBytes(filename, data)
 	if err != nil {

app/file_test.go

@@ -85,4 +85,18 @@ func TestDoUploadFile(t *testing.T) {
 	if info3.Path != fmt.Sprintf("20080305/teams/%v/channels/%v/users/%v/%v/%v", teamId, channelId, userId, info3.Id, filename) {
 		t.Fatal("stored file at incorrect path", info3.Path)
 	}
+
+	info4, err := th.App.DoUploadFile(time.Date(2009, 3, 5, 1, 2, 3, 4, time.Local), "../../"+teamId, "../../"+channelId, "../../"+userId, "../../"+filename, data)
+	if err != nil {
+		t.Fatal(err)
+	} else {
+		defer func() {
+			<-th.App.Srv.Store.FileInfo().PermanentDelete(info3.Id)
+			utils.RemoveFile(info3.Path)
+		}()
+	}
+
+	if info4.Path != fmt.Sprintf("20090305/teams/%v/channels/%v/users/%v/%v/%v", teamId, channelId, userId, info4.Id, filename) {
+		t.Fatal("stored file at incorrect path", info4.Path)
+	}
 }