func initFileSystems() (fss []fsi.FileSystem, c aetest.Context) {
var err error
c, err = aetest.NewContext(nil)
if err != nil {
log.Fatal(err)
}
// defer c.Close()
// Not here, but instead at the start of the test-funcs
// We cant make variadic options generic,
// since they need the concrete filesystem type.
fs1 := dsfs.New(
dsfs.MountName(dsfs.MountPointLast()),
dsfs.AeContext(c),
)
fs3 := osfs.New()
fs4 := memfs.New(
memfs.Ident("m"),
)
fss = []fsi.FileSystem{fs1, fs3, fs4}
return fss, c
}
//
// A static fileserver is NOT working
// Since we need an appengine.context
//
// UNUSED, NOT WORKING
func serveDsFs(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
// Examples
http.Handle("/img/", http.StripPrefix("/img/", http.FileServer(http.Dir("./img/"))))
http.Handle("/css/", http.StripPrefix("/css/", http.FileServer(http.Dir("./css/"))))
http.Handle("/tmp/", http.StripPrefix("/tmp/", http.FileServer(http.Dir("c:\\temp"))))
c := appengine.NewContext(r)
cx = c
mountPoint = dsfs.MountPointLast()
fs1 := dsfs.New(
dsfs.MountName(mountPoint),
dsfs.AeContext(c),
)
httpFSys := &httpfs.HttpFs{SourceFs: fs1}
// HERE is the trouble!
http.Handle("/tmp1/", http.StripPrefix("/tmp1/", http.FileServer(httpFSys.Dir("./"))))
wpf(w, "serving %v", mountPoint)
// time.Sleep(5 * time.Second)
}
func lastMountPoint(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
wpf(w, tplx.ExecTplHelper(tplx.Head, map[string]interface{}{"HtmlTitle": "last Mountpoint"}))
defer wpf(w, tplx.Foot)
wpf(w, "<pre>\n")
defer wpf(w, "\n</pre>")
wpf(w, "reset %v\n", dsfs.MountPointLast())
}
func DeleteSubtree(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
lg, lge := loghttp.Logger(w, r)
err := r.ParseForm()
lge(err)
wpf(w, tplx.ExecTplHelper(tplx.Head, map[string]interface{}{"HtmlTitle": "Delete Subtree for curr FS"}))
defer wpf(w, tplx.Foot)
if r.Method == "POST" {
wpf(w, "<pre>\n")
defer wpf(w, "\n</pre>")
mountPoint := dsfs.MountPointLast()
if len(r.FormValue("mountname")) > 0 {
mountPoint = r.FormValue("mountname")
}
lg("mount point is %v", mountPoint)
pathPrefix := "impossible-value"
if len(r.FormValue("pathprefix")) > 0 {
pathPrefix = r.FormValue("pathprefix")
}
lg("pathprefix is %v", pathPrefix)
fs := getFS(appengine.NewContext(r), mountPoint)
lg("created fs %v-%v ", fs.Name(), fs.String())
lg("removing %q - and its subtree ...", pathPrefix)
err := fs.RemoveAll(pathPrefix)
lge(err)
errMc := memcache.Flush(appengine.NewContext(r))
lge(errMc)
if err == nil && errMc == nil {
lg("success")
}
} else {
tData := map[string]string{"Url": UriDeleteSubtree}
err := tplBase.ExecuteTemplate(w, "tplName01", tData)
lge(err)
}
}
func receiveUpload(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
lg, _ := loghttp.Logger(w, r)
c := appengine.NewContext(r)
// parsing multipart before anything else
err := r.ParseMultipartForm(1024 * 1024 * 2)
if err != nil {
lg("Multipart parsing failed: %v", err)
return
}
wpf(w, tplx.ExecTplHelper(tplx.Head, map[string]interface{}{"HtmlTitle": "Receive an Upload"}))
defer wpf(w, tplx.Foot)
wpf(w, "<pre>")
defer wpf(w, "</pre>")
fields := []string{"getparam1", "mountname", "description"}
for _, v := range fields {
lg("%12v => %q", v, r.FormValue(v))
}
mountPoint := dsfs.MountPointLast()
if len(r.FormValue("mountname")) > 0 {
mountPoint = r.FormValue("mountname")
}
lg("mount point is %v", mountPoint)
fs1 := dsfs.New(
dsfs.MountName(mountPoint),
dsfs.AeContext(c),
)
// As closure, since we cannot define dsfs.dsFileSys as parameter
funcSave := func(argName string, data []byte) (error, *bytes.Buffer) {
b1 := new(bytes.Buffer)
fs1 := dsfs.New(
dsfs.MountName(mountPoint),
dsfs.AeContext(c),
)
dir, bname := fs1.SplitX(argName)
err := fs1.MkdirAll(dir, 0777)
wpf(b1, "mkdir %v - %v\n", dir, err)
if err != nil {
return err, b1
}
err = fs1.WriteFile(path.Join(dir, bname), data, 0777)
wpf(b1, "saved file content to %v - %v\n", argName, err)
return err, b1
}
ff := "filefield"
file, handler, err := r.FormFile(ff)
if err != nil {
lg("error calling FormFile from %q => %v", ff, err)
return
}
if handler == nil {
lg("no multipart file %q", ff)
} else {
lg("extracted file %v", handler.Filename)
data, err := ioutil.ReadAll(file)
if err != nil {
lg("ReadAll on uploaded file failed: %v", err)
return
}
defer file.Close()
lg("extracted file content; %v bytes", len(data))
newFilename := docRootDataStore + handler.Filename
ext := path.Ext(newFilename)
if ext == ".zip" {
lg("found zip - treat as dir-tree %q", newFilename)
r, err := zip.NewReader(file, int64(len(data)))
if err != nil {
lg("open as zip failed: %v", err)
return
}
for _, f := range r.File {
newFilename = docRootDataStore + f.Name
dir, bname := fs1.SplitX(newFilename)
if f.FileInfo().IsDir() {
lg("\t dir %s", newFilename)
err := fs1.MkdirAll(path.Join(dir, bname), 0777)
if err != nil {
lg("MkdirAll %v failed: %v", newFilename, err)
return
}
} else {
lg("\t file %s", newFilename)
rc, err := f.Open()
if err != nil {
return
}
defer func(rc io.ReadCloser) {
if err := rc.Close(); err != nil {
panic(err)
}
}(rc)
bts := new(bytes.Buffer)
size, err := io.Copy(bts, rc)
if err != nil {
lg("Could not copy from zipped file %v: %v", newFilename, err)
return
}
err = common.WriteFile(fsi.FileSystem(fs1), path.Join(dir, bname), bts.Bytes())
// err = fs1.WriteFile(path.Join(dir, bname), bts.Bytes(), 0777)
if err != nil {
lg("WriteFile of zipped file %v failed: %v", newFilename, err)
return
}
lg("\t saved %v - %v Bytes", newFilename, size)
}
}
} else {
err, b2 := funcSave(newFilename, data)
lg("%s", b2)
if err != nil {
return
}
}
errMc := memcache.Flush(appengine.NewContext(r))
if errMc != nil {
lg("Error flushing memache: %v", errMc)
return
}
lg("--------------------\n")
}
}
