func GetMatchedSession(w http.ResponseWriter, r *http.Request) (*MySession, error) {
sessionId := hmSessionCookie.GetOne(SESSION_COOKIE_KEY, r)
if len(sessionId) == 0 {
warningMsg := fmt.Sprintf("Not found matched session! No session cookie!")
go_lib.LogWarnln(warningMsg)
return nil, nil
}
sessionkey := generateSessionKey(sessionId)
exists, err := dao.Exists(sessionkey)
if err != nil {
return nil, err
}
if !exists {
warningMsg := fmt.Sprintf("Not found matched session! No session in storage! (sessionId=%s, sessionKey=%s)", sessionId, sessionkey)
go_lib.LogWarnln(warningMsg)
return nil, nil
}
grantors, err := dao.GetHash(sessionkey, SESSION_GRANTORS_KEY)
if err != nil {
return nil, err
}
if len(grantors) == 0 {
warningMsg := fmt.Sprintf("Not found grantor from session (sessionKey=%s, attribute=%s)!\n", sessionkey, SESSION_GRANTORS_KEY)
go_lib.LogWarnln(warningMsg)
return nil, nil
}
groupName, err := dao.GetHash(sessionkey, SESSION_GROUP_KEY)
if err != nil {
return nil, err
}
if len(groupName) == 0 {
warningMsg := fmt.Sprintf("Not found group name from session (sessionKey=%s, attribute=%s)!\n", sessionkey, SESSION_GROUP_KEY)
go_lib.LogWarnln(warningMsg)
return nil, err
}
servivalSecondsLiterals, err := dao.GetHash(sessionkey, SESSION_SURVIVAL_SECONDS_KEY)
if err != nil {
return nil, err
}
if len(servivalSecondsLiterals) == 0 {
warningMsg := fmt.Sprintf("Not found session servival seconds. Use default value '0'. (sessionKey=%s, attribute=%s)!\n", sessionkey, SESSION_SURVIVAL_SECONDS_KEY)
go_lib.LogWarnln(warningMsg)
return nil, err
}
hmSession := &MySession{key: sessionkey, sessionId: sessionId, w: w, r: r}
return hmSession, nil
}
func (self *MySession) Initialize(
grantors string,
// survivalSeconds:
// '<0'- Don't set/Delete cookie;
// '0' - Set temporary cookie;
// '>0'- Set long term cookie according to this value & Set session expires
survivalSeconds int,
w http.ResponseWriter,
r *http.Request) error {
if len(grantors) == 0 {
errorMsg := fmt.Sprintln("The session grantors is EMPTY!")
return errors.New(errorMsg)
}
if w == nil {
errorMsg := fmt.Sprintln("The pointer of http response writer is NIL!")
return errors.New(errorMsg)
}
if r == nil {
errorMsg := fmt.Sprintln("The pointer of http request is NIL!")
return errors.New(errorMsg)
}
self.w = w
self.r = r
self.sessionId = generateSessionId(grantors, r)
self.key = generateSessionKey(self.sessionId)
go_lib.LogInfof("Initialize session (key=%s, grantors=%s)...\n", self.key, grantors)
exists, err := dao.Exists(self.key)
if err != nil {
return err
}
if exists {
_, err = dao.DelKey(self.key)
if err != nil {
return err
}
}
_, err = dao.SetHash(self.key, SESSION_GRANTORS_KEY, grantors)
if err != nil {
return err
}
_, err = dao.SetHash(self.key, SESSION_SURVIVAL_SECONDS_KEY, strconv.FormatInt(int64(survivalSeconds), 10))
if err != nil {
return err
}
cookieMaxAge := survivalSeconds
if survivalSeconds <= 0 {
cookieMaxAge = -1
}
go_lib.LogInfof("Set session cookie (value=%s, grantors=%s, maxAge=%d)...\n", self.sessionId, grantors, cookieMaxAge)
result := hmSessionCookie.SetOne(self.w, SESSION_COOKIE_KEY, self.sessionId, cookieMaxAge)
if result {
go_lib.LogInfof("Session cookie setting (value=%s, grantors=%s, maxAge=%d) is successful.\n", self.sessionId, grantors, cookieMaxAge)
} else {
go_lib.LogWarnf("Session cookie setting (value=%s, grantors=%s, maxAge=%d) is failing!\n", self.sessionId, grantors, cookieMaxAge)
}
if survivalSeconds > 0 {
done, err := dao.SetExpires(self.key, uint64(survivalSeconds))
if err != nil || !done {
warningMsg := fmt.Sprintf("Setting session expires failed! (key=%s, survivalSeconds=%d, error=%s)\n", self.key, survivalSeconds, err)
go_lib.LogWarnln(warningMsg)
}
}
_, err = dao.SetHash(SESSION_MAP_KEY, grantors, self.key)
if err != nil {
return err
}
return nil
}