<?php

/*

 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between

 * Version 1.1.6 (Caoineag beta 1)

 * Copyright (C) 2006-2008 Dan Fuhry

 * Installation package

 * sysreqs.php - Installer system-requirements page

 *

 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

 *

 * 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 details.

 */

if ( !defined('IN_ENANO_INSTALL') )

  die();

global $failed, $warned;

$failed = false;

$warned = false;

function run_test($code, $desc, $extended_desc, $warn = false)

{

  global $failed, $warned;

  static $cv = true;

  $cv = !$cv;

  $val = eval($code);

  if($val)

  {

    if($cv) $color='CCFFCC'; else $color='AAFFAA';

    echo "<tr><td style='background-color: #$color; width: 500px; padding: 5px;'>$desc</td><td style='padding-left: 10px;'><img alt='Test passed' src='../images/check.png' /></td></tr>";

  } elseif(!$val && $warn) {

    if($cv) $color='FFFFCC'; else $color='FFFFAA';

    echo "<tr><td style='background-color: #$color; width: 500px; padding: 5px;'>$desc<br /><b>$extended_desc</b></td><td style='padding-left: 10px;'><img alt='Test passed with warning' src='../images/checkunk.png' /></td></tr>";

    $warned = true;

  } else {

    if($cv) $color='FFCCCC'; else $color='FFAAAA';

    echo "<tr><td style='background-color: #$color; width: 500px; padding: 5px;'>$desc<br /><b>$extended_desc</b></td><td style='padding-left: 10px;'><img alt='Test failed' src='../images/checkbad.png' /></td></tr>";

    $failed = true;

  }

}

function is_apache()

{

  $r = strstr($_SERVER['SERVER_SOFTWARE'], 'Apache') ? true : false;

  return $r;

}

function write_test($filename)

{

  // We need to actually _open_ the file to make sure it can be written, because sometimes this fails even when is_writable() returns

  // true on Windows/IIS servers. Don't ask me why.

  $file = ENANO_ROOT . '/' . $filename;

  if ( is_dir($file) )

  {

    $file = rtrim($file, '/') . '/' . 'enanoinstalltest.txt';

    if ( file_exists($file) )

    {

      $fp = @fopen($file, 'a+');

      if ( !$fp )

        return false;

      fclose($fp);

      unlink($file);

      return true;

    }

    else

    {

      $fp = @fopen($file, 'w');

      if ( !$fp )

        return false;

      fclose($fp);

      unlink($file);

      return true;

    }

  }

  else

  {

    if ( file_exists($file) )

    {

      $fp = @fopen($file, 'a+');

      if ( !$fp )

        return false;

      fclose($fp);

      return true;

    }

    else

    {

      $fp = @fopen($file, 'w');

      if ( !$fp )

        return false;

      fclose($fp);

      return true;

    }

  }

}

$warnings = array();

$failed = false;

$have_dbms = false;

// Test: Apache

$req_apache = is_apache() ? 'good' : 'bad';

// Test: PHP

if ( version_compare(PHP_VERSION, '5.2.0', '>=') )

{

  $req_php = 'good';

}

else if ( version_compare(PHP_VERSION, '5.0.0', '>=') )

{

  $warnings[] = $lang->get('sysreqs_req_help_php', array('php_version' => PHP_VERSION));

  $req_php = 'warn';

}

else

{

  $failed = true;

  $req_php = 'bad';

}

$req_safemode = !intval(@ini_get('safe_mode'));

if ( !$req_safemode )

{

  $warnings[] = $lang->get('sysreqs_req_help_safemode');

  $failed = true;

}

// Test: MySQL

$req_mysql = function_exists('mysql_connect');

if ( $req_mysql )

  $have_dbms = true;

// Test: PostgreSQL

$req_pgsql = function_exists('pg_connect');

if ( $req_pgsql )

  $have_dbms = true;

if ( !$have_dbms )

  $failed = true;

// Test: File uploads

$req_uploads = intval(@ini_get('file_uploads'));

// Writability test: config

$req_config_w = write_test('config.new.php');

// Writability test: .htaccess

$req_htaccess_w = write_test('.htaccess.new');

// Writability test: files

$req_files_w = write_test('files');

// Writability test: cache

$req_cache_w = write_test('cache');

if ( !$req_config_w || !$req_htaccess_w || !$req_files_w || !$req_cache_w )

  $warnings[] = $lang->get('sysreqs_req_help_writable');

if ( !$req_config_w )

  $failed = true;

// Extension test: GD

$req_gd = function_exists('imagecreatefrompng') && function_exists('getimagesize') && function_exists('imagecreatetruecolor') && function_exists('imagecopyresampled');

if ( !$req_gd )

  $warnings[] = $lang->get('sysreqs_req_help_gd2');

// FS test: ImageMagick

$req_imagick = which('convert');

if ( !$req_imagick )

  $warnings[] = $lang->get('sysreqs_req_help_imagemagick');

// Extension test: GMP

$req_gmp = function_exists('gmp_init');

if ( !$req_gmp )

  $warnings[] = $lang->get('sysreqs_req_help_gmp');

// Extension test: Big_Int

$req_bigint = function_exists('bi_from_str');

if ( !$req_bigint && !$req_gmp )

  $warnings[] = $lang->get('sysreqs_req_help_bigint');

// Extension test: BCMath

$req_bcmath = function_exists('bcadd');

if ( !$req_bcmath && !$req_bigint && !$req_gmp )

  $warnings[] = $lang->get('sysreqs_req_help_bcmath');

?>

<form action="install.php?stage=database" method="post">

<?php

  echo '<input type="hidden" name="language" value="' . $lang_id . '" />';

?>

<h3><?php echo $lang->get('sysreqs_heading'); ?></h3>

 <p><?php echo $lang->get('sysreqs_blurb'); ?></p>

<?php

if ( !empty($warnings) ):

?>

  <div class="sysreqs_warning">

    <h3><?php echo $lang->get('sysreqs_summary_warn_title'); ?></h3>

    <p><?php echo $lang->get('sysreqs_summary_warn_body'); ?></p>

    <ul>

      <li><?php echo implode("</li>\n      <li>", $warnings); ?></li>

    </ul>

  </div>

<?php

endif;

if ( !$have_dbms ):

?>

  <div class="sysreqs_error">

    <h3><?php echo $lang->get('sysreqs_err_no_dbms_title'); ?></h3>

    <p><?php echo $lang->get('sysreqs_err_no_dbms_body'); ?></p>

  </div>

<?php

endif;

if ( empty($warnings) && !$failed ):

?>

  <div class="sysreqs_success">

    <h3><?php echo $lang->get('sysreqs_summary_pass_title'); ?></h3>

    <p><?php echo $lang->get('sysreqs_summary_pass_body'); ?></p>

  </div>

  <div style="text-align: center;">

    <input type="submit" value="<?php echo $lang->get('meta_btn_continue'); ?>" />

  </div>

<?php

endif;

if ( $failed ):

?>

  <div class="sysreqs_error">

    <h3><?php echo $lang->get('sysreqs_summary_fail_title'); ?></h3>

    <p><?php echo $lang->get('sysreqs_summary_fail_body'); ?></p>

  </div>

<?php

endif;        

?>

<table border="0" cellspacing="0" cellpadding="0" class="sysreqs">

<?php

/*

  </div>

<?php

}

else

{

  if ( $failed )

  {

    echo '<div class="pagenav"><table border="0" cellspacing="0" cellpadding="0">';

    run_test('return false;', $lang->get('sysreqs_summary_fail_title'), $lang->get('sysreqs_summary_fail_body'));

    echo '</table></div>';

  }

}

*/

?>

<tr>

  <th colspan="2"><?php echo $lang->get('sysreqs_heading_serverenv'); ?></th>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_apache'); ?></td>

  <?php

  if ( $req_apache ):

    echo '<td class="good">' . $lang->get('sysreqs_req_found') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_php'); ?></td>

  <td class="<?php echo $req_php; ?>">v<?php echo PHP_VERSION; ?></td>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_safemode'); ?></td>

  <?php

  if ( $req_safemode ):

    echo '<td class="good">' . $lang->get('sysreqs_req_disabled') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_enabled') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_uploads'); ?></td>

  <?php

  if ( $req_uploads ):

    echo '<td class="good">' . $lang->get('sysreqs_req_enabled') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_disabled') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <th colspan="2"><?php echo $lang->get('sysreqs_heading_dbms'); ?></th>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_mysql'); ?></td>

  <?php

  if ( $req_mysql ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td><?php echo $lang->get('sysreqs_req_postgresql'); ?></td>

  <?php

  if ( $req_pgsql ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <th colspan="2"><?php echo $lang->get('sysreqs_heading_files'); ?></th>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_config_writable'); ?>

  </td>

  <?php

  if ( $req_config_w ):

    echo '<td class="good">' . $lang->get('sysreqs_req_writable') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_unwritable') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_htaccess_writable'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_htaccess_writable'); ?></small>

  </td>

  <?php

  if ( $req_htaccess_w ):

    echo '<td class="good">' . $lang->get('sysreqs_req_writable') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_unwritable') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_files_writable'); ?>

  </td>

  <?php

  if ( $req_files_w ):

    echo '<td class="good">' . $lang->get('sysreqs_req_writable') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_unwritable') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_cache_writable'); ?>

  </td>

  <?php

  if ( $req_cache_w ):

    echo '<td class="good">' . $lang->get('sysreqs_req_writable') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_unwritable') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <th colspan="2"><?php echo $lang->get('sysreqs_heading_images'); ?></th>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_gd2'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_gd2'); ?></small>

  </td>

  <?php

  if ( $req_gd ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_imagemagick'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_imagemagick'); ?></small>

  </td>

  <?php

  if ( $req_imagick ):

    echo '<td class="good">' . $lang->get('sysreqs_req_found') . ' <small>(' . htmlspecialchars($req_imagick) . ')</small></td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <th colspan="2"><?php echo $lang->get('sysreqs_heading_crypto'); ?></th>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_gmp'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_gmp'); ?></small>

  </td>

  <?php

  if ( $req_gmp ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_bigint'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_bigint'); ?></small>

  </td>

  <?php

  if ( $req_bigint ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

<tr>

  <td>

    <?php echo $lang->get('sysreqs_req_bcmath'); ?><br />

    <small><?php echo $lang->get('sysreqs_req_hint_bcmath'); ?></small>

  </td>

  <?php

  if ( $req_bcmath ):

    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';

  else:

    echo '<td class="bad">' . $lang->get('sysreqs_req_notfound') . '</td>';

  endif;

  ?>

</tr>

</table>

<?php

if ( !$failed ):

?>

    <table border="0">

    <tr>

      <td>

        <input type="submit" value="<?php echo $lang->get('meta_btn_continue'); ?>" />

      </td>

      <td>

        <p>

          <span style="font-weight: bold;"><?php echo $lang->get('meta_lbl_before_continue'); ?></span><br />

          &bull; <?php echo $lang->get('sysreqs_objective_scalebacks'); ?><br />

          &bull; <?php echo $lang->get('license_objective_have_db_info'); ?>

        </p>

      </td>

    </tr>

    </table>

<?php

endif;

?>

</form>