<?php

  class mw_env_cli extends mw_env{

    var $argv;
    var $etat;
    var $login;
    var $password;
    var $params;
    var $INITED;

    function run_cli($argv){
      if(PHP_SAPI != "cli"){
        $this->INITED = false;
        return "php cli uniquement";
      }
      if(!isset($argv) || !$argv){
        $this->INITED = false;
        return "variable argv non disponible";
      }
      $this->argv = $argv;
      $this->etat = "";
      $this->login = "";
      $this->password = "";
      $this->params = array();
      $this->INITED = true;
      if(
            (($res = $this->parse_cli_arguments()) !== true)
        ||  (($res = $this->init_cli_user()) !== true)
      ){
        return $res;
      }
      $this->run($this->etat, array("get" => $this->params));
      return true;
    }

    function inited(){
      return isset($this->INITED) && $this->INITED;
    }

    function parse_cli_arguments(){
      if(!$this->inited()) return "cli not inited";
      $FIRST = false;
      $SECOND = false;
      foreach($this->argv as $cmd_arg){
        if(!$FIRST){
          $FIRST = true;
          continue;
        }
        elseif(!$SECOND){
          $SECOND = true;
          if(($k = strpos($cmd_arg, "=")) === false){
            $this->etat = $cmd_arg;
            if(($k = strpos($this->etat, "@")) !== false){
              $this->login = explode(":", substr($this->etat, 0, $k));
              if(isset($this->login[1])) $this->password = $this->login[1];
              $this->login = $this->login[0];
              $this->etat = substr($this->etat, $k + 1);
            }
            continue;
          }
        }
        if(strlen($cmd_arg)){
          $param_name = "";
          $param_value = "";
          if(($k = strpos($cmd_arg, "=")) === false){
            foreach($this->get_PARAMS() as $_key => $_value) if(strcmp($cmd_arg, $_value) == 0){
              $param_name = $_key;
              break;
            }
          }
          elseif($k != 0){
            $_cmd_arg = substr($cmd_arg, 0, $k);
            foreach($this->get_PARAMS() as $_key => $_value) if(strcmp($_cmd_arg, $_value) == 0){
              $param_name = $_key;
              $param_value = substr($cmd_arg, $k + 1);
              break;
            }
          }
          if($param_name){
            $this->params[$param_name] = $param_value;
          }
        }
      }
      $this->etat = $this->valid_etat($this->etat);
      if($this->etat === false) return "etat invalide";
      return true;
    }

    function init_cli_user(){
      if(!$this->inited()) return "cli not inited";
      $data = $this->data();
      if($this->login){
        if(!$this->password){
          $this->password = $this->cmd_prompt("password: ", true);
          echo "\n";
        }
        if(!($user = $data->user($this->login)) || (md5($this->password) != $user["password"])){
          return "indentification incorrecte";
        }
        $data->set_session_user($user);
      }
      if(!$this->action_allowed($this->etat, false)){
        $this->login = $this->cmd_prompt("login: ");
        $this->password = $this->cmd_prompt("password: ", true);
        echo "\n";
        if(!($user = $data->user($this->login)) || (md5($this->password) != $user["password"])){
          return "indentification incorrecte";
        }
        $data->set_session_user($user);
        if(!$this->action_allowed($this->etat, false)){
          return "permission refusee pour cette action";
        }
      }
      return true;
    }

    function cmd_prompt($prompt, $SILENT = false){
      if(preg_match('/^win/i', PHP_OS)){
        $vbscript = sys_get_temp_dir().'prompt_password.vbs';
        file_put_contents(
          $vbscript,
          'wscript.echo(InputBox("'
          .addslashes($prompt)
          .'", "", "'.$prompt.'"))'
        );
        $command = "cscript //nologo " . escapeshellarg($vbscript);
        $password = rtrim(shell_exec($command));
        unlink($vbscript);
        return $password;
      }
      else{
        $command = "/usr/bin/env bash -c 'echo OK'";
        if(rtrim(shell_exec($command)) !== 'OK') return false;
        $command =
         "/usr/bin/env bash -c 'read".($SILENT ? " -s" : "")." -p \""
        .addslashes($prompt)
        ."\" mypassword && echo \$mypassword'";
        return rtrim(shell_exec($command));
      }
    }

  }

?>