source: trunk/prototype/modules/filters/interceptors/FilterMapping.php @ 5630

<?php
/**
*
* Copyright (C) 2011 Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License version 3 as published by
* the Free Software Foundation with the addition of the following permission
* added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED
* WORK IN WHICH THE COPYRIGHT IS OWNED BY FUNAMBOL, FUNAMBOL DISCLAIMS THE
* WARRANTY OF NON INFRINGEMENT  OF THIRD PARTY RIGHTS.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*
* This code is based on the OpenXchange Connector and on the Prognus pSync
* Connector both developed by the community and licensed under the GPL
* version 2 or above as published by the Free Software Foundation.
*
* You can contact Prognus Software Livre headquarters at Av. Tancredo Neves,
* 6731, PTI, Bl. 05, Esp. 02, Sl. 10, Foz do Iguaçu - PR - Brasil or at
* e-mail address prognus@prognus.com.br.
*
* Descrição rápida do arquivo
*
* Arquivo responsável pela manipulação dos filtros
*
* @package    filters
* @license    http://www.gnu.org/copyleft/gpl.html GPL
* @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
* @version    1.0
* @sponsor    Caixa EconÃŽmica Federal
* @since      Arquivo disponibilizado na versão 2.4
*/



/**
* Classe responsável pela manipulação dos filtros.
*
*
* @package    prototype
* @license    http://www.gnu.org/copyleft/gpl.html GPL
* @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
* @author     Airton Bordin Junior
* @author     Gustavo Pereira dos Santos
* @version    1.0
* @since      Classe disponibilizada na versão 2.4
*/
class FilterMapping
{
        
        var $service;
        
        
        /**
        * Método que formata o Script de acordo com a sintaxe do Sieve.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <Array> <$rules> <Array com as regras do usuário>
        * @return     <Regra de acordo com a sintaxe do Sieve>
        * @access     <public>
        */
        public function formatSieveScript( $rules )
    {
        
                $require_fileinto = $require_flag = $require_reject = $require_vacation = $require_body = $require_imapflag = $vacation = $startswith = $endswith = false;

                $script_rules = $script_header = $script_criteria = $vacation_action = "";

                $i = 0;

                foreach( $rules as $name => $data )
                {
                        /* Usado na opção Bloquear usuário do ExpressoMail */
                        if($data['block']) {
                                ($i >0) ? $script_match = 'elsif anyof' : $script_match = 'if anyof';
                                $script_match = $script_match . "(address :is \"from\" [\"" .$data['name'] . "\"]) {\r\n";  
                                $script_match .= "fileinto \"INBOX/Spam\"; \r\n}\r\n";
                                $script_rules .= $script_match;
                                $script_match = "";
                                $script_criteria = "";
                                $require_fileinto = true;
                                $i++;
                                continue;
                        }
                        
                        if( $data['enabled'] == 'false' )
                                continue;

                        $vacation = false;
                        $criteria = $data['criteria'];
                        $action   = $data['actions'];
                        
                        ($i >0) ? $script_match = 'els' : $script_match = '';
                        $data['isExact'] == 'false' ?  $script_match .= 'if anyof (' : $script_match .= 'if allof (';

                        for ($j=0; $j<count($criteria); $j++)
                        {                                       
                                switch($criteria[$j]['field']) {
                                        case 'To':    
                                        case 'to':    
                                        case 'CC':
                                        case 'Cc':
                                                $criteria[$j]['field'] = "[\"To\", \"TO\", \"Cc\", \"CC\"]"; 
                                                $script_criteria .= "address :";
                                                break;
                                        case 'from':
                                                $criteria[$j]['field'] = "\"" . $criteria[$j]['field'] . "\"";
                                                $script_criteria .= "address :";
                                                break;
                                        case 'size':    
                                                $criteria[$j]['field'] = '';
                                                $script_criteria .= "size :";
                                                break;
                                        case 'subject':
                                                $criteria[$j]['field'] = "\"" . $criteria[$j]['field'] . "\"";
                                                $criteria[$j]['value'] = "" . imap_8bit($criteria[$j]['value']) . "\", \"" . base64_encode($criteria[$j]['value']) . "";
                                                $script_criteria .= "header :";
                                                break;
                                        case 'body':
                                                $criteria[$j]['field'] = '';
                                                $script_criteria .= "body :";
                                                $require_body = true;
                                                break;
                                        case 'vacation':
                                                continue;
                                        default:
                                                $script_criteria .= "header :";
                                                break;
                                }
                                
                                switch ($criteria[$j]['operator']) {
                                        case '>':
                                                $criteria[$j]['operator'] = "over";
                                                break;
                                        case '<':
                                                $criteria[$j]['operator'] = "under";
                                                break;
                                        case '=':
                                                $criteria[$j]['operator'] = "is";
                                                $criteria[$j]['value'] = "[\"" . $criteria[$j]['value'] . "\"]";
                                                break;
                                        case '*':
                                                $criteria[$j]['operator'] = "contains";
                                                $criteria[$j]['value'] = "[\"" . $criteria[$j]['value'] . "\"]";
                                                break;                                          
                                        case '^':
                                                $criteria[$j]['operator'] = "matches";
                                                $criteria[$j]['value'] = "[\"" . $criteria[$j]['value'] . "*\"]";
                                                $startswith = true;
                                                break;
                                        case '$':
                                                $criteria[$j]['operator'] = "matches";
                                                $criteria[$j]['value'] = "[\"*" . $criteria[$j]['value'] . "\"]";
                                                $endswith = true;
                                                break;
                                        /* 
                                           TO-DO:
                                           Arrrumar regra do "não contém".
                                        */
                                        case '!*':
                                                $criteria[$j]['operator'] = "contains";
                                                $criteria[$j]['value'] = "[\"" . $criteria[$j]['value'] . "\"]";
                                                break;
                                }
                                
                                if ($criteria[$j]['field'] == "" || $criteria[$j]['field'] == "\"subject\"" || $startswith || $endswith)
                                {
                                        $script_criteria .= $criteria[$j]['operator'] . " " . $criteria[$j]['field'] . " " . $criteria[$j]['value'] . ", "; 
                                        $startswith = $endswith = false;
                                }
                                else
                                        $script_criteria .= $criteria[$j]['operator'] . " " . $criteria[$j]['field'] . " " . $criteria[$j]['value'] . ", ";
                        }
                        $script_criteria = substr($script_criteria,0,-2);
                        /* if ($vacation == false) */ 
                        $script_criteria .= ")"; 

                        $script_action = " {\r\n ";
                        for ($k=0; $k<count($action); $k++)
                        {
                                switch ($action[$k]['type']) {
                                        case 'redirect':
                                                break;
                                        case 'reject':
                                                $require_reject = true;
                                                break;
                                        case 'fileinto':
                                                $require_fileinto = true;
                                                break;
                                        case 'vacation':
                                                $require_vacation = true;
                                                $action[$k]['parameter'] = "\"" . $action[$k]['parameter'] . "\"";
                                                $vacation_action = " :subject \"Fora do Escritório\" " . $action[$k]['parameter'] . ";";
                                                $vacation = true;
                                                continue;
                                        case 'setflag':
                                                $require_flag = true;
                                                $action[$k]['parameter'] = "\\\\" . $action[$k]['parameter'];
                                                break;
                                        case 'discard':
                                                break;
                                }
                                if ($vacation == false) $script_action .= $action[$k]['type'] . " \"" . $action[$k]['parameter'] . "\";\r\n ";
                        }

                        $script_action .= "}";
                        
                        if($vacation != true)
                                $script_rules .= $script_match . $script_criteria . $script_action . "\r\n";

                        if($data['id'] != "vacation")
                                $i++;
                        $script_match = "";
                        $script_criteria = "";
                        
                }

                if($require_reject || $require_fileinto || $require_vacation || $require_body || $require_flag)
                {
                        $script_header .= "require [";
                        $require_reject ? $script_header .= "\"reject\", " : ""; 
                        $require_fileinto ? $script_header .= "\"fileinto\", " : ""; 
                        $require_vacation? $script_header .= "\"vacation\", " : "";  
                        $require_flag ? $script_header .= "\"imapflags\", " : "";  
                        $require_body ? $script_header .= "\"body\", " : "";  /* tem que instalar as extensões no Cyrus */
                        $script_header = substr($script_header,0,-2);
                        $script_header .= "];\r\n";
                }

                if( $vacation_action )
                {
                  $script_rules .= "vacation" . $vacation_action . "\r\n";
                }

                $json_data = json_encode($rules);
                
                $script_begin = "#Filtro gerado por Expresso Livre versão 2.4\r\n\r\n";

                $content = $script_begin . $script_header . $script_rules . "\r\n\r\n#PseudoScript#" . "\r\n#" . $json_data;
                //$content = ""; 
                return( $content );
        }
        

        /**
        * Método que faz o parsing do Script Sieve, transformando em Array.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <String> <$script> <Script Sieve com as regras do usuário>
        * @return     <Regras do usuário em Array>
        * @access     <public>
        */
        public function parseSieveScript( $script )
        {
                $pos = strripos($script, "#PseudoScript#");
                $pseudo_script = substr( $script, $pos+17 );

                $return = json_decode( $pseudo_script, true );

                return $return;
        }

        var $rules = false;

        /**
        * Construtor da classe.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @access     <public>
        */
        public function __construct()
        { 
                $this->service = Controller::service("Sieve");
        }

        
        /**
        * Método que recupera as regras do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @return     <Regras do usuário>
        * @access     <public>
        */
        public function getRules()
        {
                $this->rules = Controller::find( array( 'concept' => 'filter' ) );

                if( !$this->rules ) {
                        $this->rules = array();
                }
                return( $this->rules );
        }

        
        /**
        * Método que aplica o filtro para as mensagens do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @access     <public>
        */
        public function applySieveFilter( &$uri , &$result , &$criteria , $original  )
        {
                 $result['id'] = $uri['id'];

                 if( $original['properties']['applyMessages'] )
                 {
                      $filter = Controller::read($uri);

                      $proc = array();
                      $proc['keep'] = false;
                      
                      foreach ($filter['actions'] as $v){
                              if($v['type'] == 'keep')
                                      $proc['keep'] = true;
                              else{
                                      $proc['type'] = $v['type'];
                                      $proc['parameter'] = $v['parameter'];
                              }
                      }

                      $imap = Controller::service( 'Imap' );
                      $imap->apliSieveFilter($original['properties']['applyMessages'] , $proc ); 
                      return $result;
                  }
        }

        
        /**
        * Método que lê o script do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @return     <Script do usuário>
        * @access     <public>
        */
        public function readUserScript( &$uri , &$params , &$criteria , $original )
        {  
                $uri['id'] = $this->service->config['user'];
        }
  
  
        /**
        * Método que seta o script do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @return     <Script do usuário>
        * @access     <public>
        */
        public function setRule( &$uri , &$params , &$criteria , $original  )
        {
                if( !$this->rules )
                $this->rules = $this->getRules();

            $uri['id'] = $params['id'] = isset($params['id']) ? $params['id'] : urlencode($params['name']);

            $i = 0;

            for( ; isset($this->rules[$i]) && $this->rules[$i]['id'] !== $params['id']; $i++ );

            $this->rules[$i] = array_merge( ( isset($this->rules[$i]) ? $this->rules[$i] : array() ), $params );

            $params = array( 'name' => $this->service->config['user'],
                             'content' => $this->formatSieveScript( $this->rules ),
                             'active' => true );
        }

        
        /**
        * Método que deleta o script do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @access     <public>
        */
        public function deleteRule( &$uri, &$params, &$criteria, $original )
        {
                if( !$this->rules ) {   
                        $this->rules = $this->getRules();
                }         
                $params['id'] = $uri['id'];

                $update = false;
                
                $rules = array();

                foreach( $this->rules as $i => $rule )
                        if( $rule['id'] !== $uri['id'] )
                                $rules[] = $this->rules[$i];

                $this->rules = $rules;
                
                $uri['id'] = '';

                $params = array( 'name' => $this->service->config['user'],
                           'content' => $this->formatSieveScript( $this->rules ),
                           'active' => true );

                $URI = Controller::URI( $uri['concept'], $this->service->config['user'] );
                $this->service->update( $URI, $params );
        
                return( false );
        }

        
        /**
        * Método que pega o script do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @return     <Script do usuário>
        * @access     <public>
        */
        public function getSieveRule( &$uri , &$params , &$criteria , $original )
        {         
                $script = $this->parseSieveScript( $params['content'] );

                foreach( $script as $i => $rule )
                        if( $rule['name'] === $original['id'] )
                                return( $params = $rule );
        }

        
        /**
        * Método que lista as regras do usuário.
        *
        * @license    http://www.gnu.org/copyleft/gpl.html GPL
        * @author     Consórcio Expresso Livre - 4Linux (www.4linux.com.br) e Prognus Software Livre (www.prognus.com.br)
        * @sponsor    Caixa EconÃŽmica Federal
        * @author     Airton Bordin Junior
        * @author         Gustavo Pereira dos Santos    
        * @param      <$uri> 
        * @param      <$result> 
        * @param      <$criteria> 
        * @param      <$original> 
        * @return     <Regras do usuário>
        * @access     <public>
        */
        public function listSieveRules( &$uri , &$params , &$criteria , $original  )
        {
                $return = $params = $this->parseSieveScript( $params[0]['content'] ); 
                return( $return );
        }
}