func handleViewerView(w http.ResponseWriter, r *http.Request) {
page_index_str := r.FormValue("page")
session_id := r.FormValue("id")
page_index32, err := strconv.ParseInt(page_index_str, 10, 32)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
page_index := int(page_index32)
session_info, session_exists, err := sessions.GetSessionInfo(session_id)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
if !session_exists {
http.NotFound(w, r)
return
}
files, err := ioutil.ReadDir(session_info.StagingPath)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
var page_list []string
for _, f := range files {
// fmt.Printf(":%s\n", f.Name())
if !f.IsDir() {
page_list = append(page_list, f.Name())
}
}
if page_index >= len(page_list) || page_index < 0 {
http.NotFound(w, r)
return
}
sort.Strings(page_list)
target_page_name := page_list[page_index]
session_info.LastAccessedTime = time.Now()
session_info.LastRemoteAddr = r.RemoteAddr
session_info.LastPageIndex = page_index
err = sessions.UpdateSessionInfo(session_info)
page_path := filepath.Join(session_info.StagingPath, target_page_name)
fmt.Printf("serving up page: %s\n", page_path)
http.ServeFile(w, r, page_path)
}
func handleViewerThumbnail(w http.ResponseWriter, r *http.Request) {
session_id := r.FormValue("id")
page_index_str := r.FormValue("page")
page_index32, err := strconv.ParseInt(page_index_str, 10, 32)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
page_index := int(page_index32)
session_info, session_exists, err := sessions.GetSessionInfo(session_id)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
if !session_exists {
http.NotFound(w, r)
return
}
files, err := ioutil.ReadDir(session_info.StagingPath)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
var page_list []string
for _, f := range files {
if !f.IsDir() {
page_list = append(page_list, f.Name())
}
}
// page_index := session_info.LastPageIndex
if page_index >= len(page_list) || page_index < 0 {
http.NotFound(w, r)
return
}
sort.Strings(page_list)
target_page_name := page_list[page_index]
page_path := filepath.Join(session_info.StagingPath, target_page_name)
fmt.Printf("serving up thumb: %s\n", page_path)
// w.Header().Add("Cache-control", "no-cache")
// w.Header().Add("Cache-directive", "no-cache")
// w.Header().Add("Pragma", "no-cache")
// w.Header().Add("Pragma-directive", "no-cache")
// w.Header().Add("Expires", "0")
http.ServeFile(w, r, page_path)
}