install/includes/stages/sysreqs.php
author Dan
Thu, 17 Dec 2009 04:27:50 -0500
changeset 1168 277a9cdead3e
parent 1144 fcb2be1428e7
child 1227 bdac73ed481e
permissions -rw-r--r--
Namespace_Default: added a workaround for an inconsistency in SQL. Basically, if you join the same table multiple times under multiple aliases, COUNT() always uses the first instance. Was affecting the comment counter in the "discussion" button.

<?php

/*
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
 * Copyright (C) 2006-2009 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();

require_once(ENANO_ROOT . '/install/includes/libenanoinstall.php');

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;
}

$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';
}

// Test: Safe Mode
$req_safemode = !intval(@ini_get('safe_mode'));
if ( !$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'));

// Test: ctype validation
$req_ctype = function_exists('ctype_digit');
if ( !$req_ctype )
  $failed = true;

// 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');

$crypto_backend = install_get_crypto_backend();

if ( $crypto_backend == 'none' )
  $warnings[] = $lang->get('sysreqs_req_help_crypto_none');
else if ( $crypto_backend == 'bcmath' )
  $warnings[] = $lang->get('sysreqs_req_help_crypto_bcmath');

?>

<div style="float: right; padding-top: 10px;">
  <form action="install.php?stage=sysreqs" method="post">
  <?php
    echo '<input type="hidden" name="language" value="' . $lang_id . '" />';
  ?>
  <button style="display: block; padding-bottom: 3px;">
  <img alt=" " src="images/recheck.png" style="position: relative; top: 3px; left: -2px;" />
    <?php echo $lang->get('sysreqs_btn_refresh'); ?>
  </button>
  </form>
</div>

<h3><?php echo $lang->get('sysreqs_heading'); ?></h3>
 <p><?php echo $lang->get('sysreqs_blurb'); ?></p>
 
<span class="menuclear"></span>

<form action="install.php?stage=database" method="post">
<?php
  echo '<input type="hidden" name="language" value="' . $lang_id . '" />';
?>

<?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">

<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>
  <td><?php echo $lang->get('sysreqs_req_ctype'); ?></td>
  <?php
  if ( $req_ctype ):
    echo '<td class="good">' . $lang->get('sysreqs_req_supported') . '</td>';
  else:
    echo '<td class="bad">' . $lang->get('sysreqs_req_unsupported') . '</td>';
  endif;
  ?>
</tr>

<tr>
  <td>
    <?php echo $lang->get('sysreqs_req_crypto'); ?>
  </td>
  <?php
  if ( in_array($crypto_backend, array('bcmath', 'bigint', 'gmp')) )
  {
    echo '<td class="good">' . $lang->get("sysreqs_req_{$crypto_backend}") . '</td>';
  }
  else
  {
    echo '<td class="bad">' . $lang->get("sysreqs_req_notfound") . '</td>';
  }
  ?>
</tr>

<!-- Database -->

<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>

</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>