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session.go
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session.go
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package session
import (
"os"
"fmt"
"time"
"errors"
"../algorithms"
)
const default_session_folder = "./sessions"
var session_folder string = default_session_folder
func getCurrentTimestamp () string {
return time.Now().Format("2006-01-02-150405")
}
func SetSessionFolder (folder string) { // basic public setter
if folder == "" {
session_folder = default_session_folder
} else {
session_folder = folder
}
}
func SessionFolderExists () bool {
fullPath := session_folder
// check if folder exists ...
_, err := os.Stat(fullPath)
return err == nil
}
func CreateSessionFolder () bool {
err := os.Mkdir(session_folder, 0755)
return err == nil
}
func CreateSessionFileName () string {
str := session_folder+"/Session - "
str += fmt.Sprintf ("%s.txt", getCurrentTimestamp())
return str
}
func CreateSessionFile (filename string) (*os.File, error, bool) {
var err error
var handle *os.File
fmt.Println (filename)
handle, err = os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
if err != nil {
return nil, err, false
}
return handle, nil, true
}
func StartSession (handle *os.File, algorithm int) error {
if handle == nil {
return errors.New ("Invalid session file handle")
}
str := fmt.Sprintf ("--- Session started : %s\n", getCurrentTimestamp ())
handle.WriteString (str)
// dump algorith type being used
str = fmt.Sprintf("Algorithm being used is '%s'\n\n", algorithms.GetAlgorithmDescription(algorithm))
handle.WriteString(str)
return nil
}
func EndSession (handle *os.File) error {
str := fmt.Sprintf ("--- Session ended : %s\n", getCurrentTimestamp ())
handle.WriteString (str)
return handle.Close ()
}