func Delete(domain string, dir string) error {
if domain == "" {
return errors.New("empty domain")
}
fileMutex.Lock()
defer fileMutex.Unlock()
if dir == "" {
dir = NGX_CONF_PATH
}
file := path.Join(dir, "conf.d", fmt.Sprintf("%s.conf", domain))
filebak := path.Join(dir, "conf.d", fmt.Sprintf("%s.conf.bak", domain))
exist := util.Exist(filebak)
if exist {
os.Remove(filebak)
}
err := os.Rename(file, file+".bak")
if err != nil {
util.Log("rename app conf file error, name: " + file)
return errors.New("delete file failed")
}
return nil
}
// prepend servers specified
func NewServer(conf *model.NgxConfWrapper) error {
file := buildFile(conf)
exist := util.Exist(file)
switch exist {
case true: // prepend server
return insertServer(conf)
case false: // new app and backend servers
return newApp(conf)
}
return nil
}
func DeleteServer(conf *model.NgxConfWrapper) (int, error) {
file := buildFile(conf)
exist := util.Exist(file)
if !exist {
return 0, errors.New("no such app domain")
}
// servers to deleted
servers := genServers(conf)
fileMutex.Lock()
defer fileMutex.Unlock()
fil, err := os.OpenFile(file, os.O_RDWR|os.O_CREATE, 0644)
if err != nil {
return 0, errors.New("open file failed")
}
defer fil.Close()
buffer.Reset()
scanner := bufio.NewScanner(fil)
flag := false
for scanner.Scan() {
line := scanner.Text()
for _, server := range servers {
if strings.Contains(line, server) {
flag = true
break
}
}
if !flag {
// write other lines to buffer
buffer.Write([]byte(line))
buffer.Write([]byte{'\n'})
}
flag = false
}
fil2, err := os.OpenFile(file+".tmp", os.O_RDWR|os.O_CREATE, 0644)
fil2.Write(buffer.Bytes())
fil2.Sync()
fil2.Close()
os.Rename(file, file+".bak")
os.Rename(file+".tmp", file)
return len(servers), nil
}