<?php
/**
 * The MIME_Viewer_msword class renders out Microsoft Word
 * documents in HTML format by using the wvWare package.
 *
 * $Horde: horde/lib/MIME/Viewer/msword.php,v 1.18 2003/05/21 14:12:54 jan Exp $
 *
 * Copyright 1999-2003 Anil Madhavapeddy <anil@recoil.org>
 *
 * See the enclosed file COPYING for license information (LGPL). If you
 * did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
 *
 * @author  Anil Madhavapeddy <anil@recoil.org>
 * @version $Revision: 1.18 $
 * @since   Horde 1.3
 * @package horde.mime.viewer
 */
class MIME_Viewer_msword extends MIME_Viewer {

    /**
     * Render out the current data using wvWare.
     *
     * @access public
     *
     * @param optional array $params  Any parameters the Viewer may need.
     *
     * @return string  The rendered contents.
     */
    function render($params = array())
    {
        global $mime_drivers;

        /* Check to make sure the program actually exists. */
        if (!file_exists($mime_drivers['horde']['msword']['location'])) {
            return '<pre>' . sprintf(_("The program used to view this data type (%s) was not found on the system."), $mime_drivers['horde']['msword']['location']) . '</pre>';
        }

        $data = '';
        $tmp_word   = Horde::getTempFile('msword');
        $tmp_output = Horde::getTempFile('msword');
        $tmp_dir    = Horde::getTempDir();
        $tmp_file   = str_replace($tmp_dir . '/', '', $tmp_output);

        $version = explode('.', exec($mime_drivers['horde']['msword']['location'] . ' --version'));
        if (count($version) > 2 && ($version[0] > 0 || $version[1] >= 7)) {
            $args = " --targetdir=$tmp_dir $tmp_word $tmp_file";
        } else {
            $args = " $tmp_word $tmp_output";
        }

        $fh = fopen($tmp_word, 'w');
        fwrite($fh, $this->mime_part->getContents());
        fclose($fh);

        exec($mime_drivers['horde']['msword']['location'] . $args);

        if (!file_exists($tmp_output)) {
            return _("Unable to translate this Word document");
        }

        $fh = fopen($tmp_output, 'r');
        while (($rc = fgets($fh, 8192))) {
            $data .= $rc;
        }
        fclose($fh);
        
        return $data;
    }

    /**
     * Return the MIME content type of the rendered content.
     *
     * @access public
     *
     * @return string  The content type of the output. 
     */
    function getType()
    {
        return 'text/html';
    }

}
