<?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>