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package weed_server
import (
"errors"
"github.com/seaweedfs/seaweedfs/weed/util/version"
"net/http"
"strconv"
"strings"
"github.com/seaweedfs/seaweedfs/weed/glog"
ui "github.com/seaweedfs/seaweedfs/weed/server/filer_ui"
"github.com/seaweedfs/seaweedfs/weed/stats"
"github.com/seaweedfs/seaweedfs/weed/util"
)
// listDirectoryHandler lists directories and folders under a directory
// files are sorted by name and paginated via "lastFileName" and "limit".
// sub directories are listed on the first page, when "lastFileName"
// is empty.
func (fs *FilerServer) listDirectoryHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
if fs.option.ExposeDirectoryData == false {
writeJsonError(w, r, http.StatusForbidden, errors.New("ui is disabled"))
return
}
stats.FilerHandlerCounter.WithLabelValues(stats.DirList).Inc()
path := r.URL.Path
if strings.HasSuffix(path, "/") && len(path) > 1 {
path = path[:len(path)-1]
}
limit, limitErr := strconv.Atoi(r.FormValue("limit"))
if limitErr != nil {
limit = fs.option.DirListingLimit
}
lastFileName := r.FormValue("lastFileName")
namePattern := r.FormValue("namePattern")
namePatternExclude := r.FormValue("namePatternExclude")
entries, shouldDisplayLoadMore, err := fs.filer.ListDirectoryEntries(ctx, util.FullPath(path), lastFileName, false, int64(limit), "", namePattern, namePatternExclude)
if err != nil {
glog.V(0).Infof("listDirectory %s %s %d: %s", path, lastFileName, limit, err)
w.WriteHeader(http.StatusNotFound)
return
}
if path == "/" {
path = ""
}
emptyFolder := true
if len(entries) > 0 {
lastFileName = entries[len(entries)-1].Name()
emptyFolder = false
}
glog.V(4).Infof("listDirectory %s, last file %s, limit %d: %d items", path, lastFileName, limit, len(entries))
if r.Header.Get("Accept") == "application/json" {
writeJsonQuiet(w, r, http.StatusOK, struct {
Version string
Path string
Entries interface{}
Limit int
LastFileName string
ShouldDisplayLoadMore bool
EmptyFolder bool
}{
version.Version(),
path,
entries,
limit,
lastFileName,
shouldDisplayLoadMore,
emptyFolder,
})
return
}
err = ui.StatusTpl.Execute(w, struct {
Version string
Path string
Breadcrumbs []ui.Breadcrumb
Entries interface{}
Limit int
LastFileName string
ShouldDisplayLoadMore bool
EmptyFolder bool
ShowDirectoryDelete bool
}{
version.Version(),
path,
ui.ToBreadcrumb(path),
entries,
limit,
lastFileName,
shouldDisplayLoadMore,
emptyFolder,
fs.option.ShowUIDirectoryDelete,
})
if err != nil {
glog.V(0).Infof("Template Execute Error: %v", err)
}
}
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