ehough/check.php

## check.php
<?php
/**
 * Copyright (c) 2012 - 2015 Eric Hough (eric@tubepress.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
    "http://www.w3.org/TR/html4/strict.dtd">

<html>
<head>
    <title>TubePress Requirements Check</title>
</head>
<body>
<p>Check TubePress requirements...</p>

<?php

@ini_set('display_errors', 1);

function msg($color, $text)
{
    global $detail;

    echo "<span style=\"color: $color\">$text</span>";

    if ($detail !== null) {

        echo " <span style=\"font-size:smaller; color:gray\">($detail)</span>";
    }

    echo "<br /><br />";
}

function pass()
{
    global $passCount;

    $passCount++;

    msg('green', 'OK');
}

function fail()
{
    global $failureCount;

    $failureCount++;

    msg('red', 'FAIL');
}

function warn()
{
    global $warningCount;

    $warningCount++;

    msg('orange', 'WARN');
}

function findExtension($name)
{
    $extensions = get_loaded_extensions();

    foreach ($extensions as $extension) {

        if (strcasecmp($extension, $name) === 0) {

            return $extension;
        }
    }

    return null;
}

function gatherExtensionDetails($name)
{
    $extension = findExtension($name);

    if ($extension === null) {

        return false;
    }

    return array($extension, phpversion($extension));
}

function passExtensionDontCareVersion($results)
{
    global $detail;

    if (isset($results[1]) && $results[1] !== false) {

        $detail = 'detected ' . $results[0] . ' extension version ' . $results[1];

    } else {

        $detail = 'detected ' . $results[0] . ' extension';
    }

    pass();
}

function passExtensionDoCareVersion($results)
{
    global $detail;

    if (isset($results[1]) && $results[1] !== false) {

        $detail = 'detected ' . $results[0] . ' extension version ' . $results[1];
        pass();

    } else {

        $detail = $results[0] . ' detected, but unable to determine version - please manually verify the version below.';
        warn();
    }
}

function phpVersionCheck()
{
    global $detail;

    $detail = 'detected PHP version ' . PHP_VERSION;

    if (version_compare(PHP_VERSION, '5.2.9') >= 0) {

        pass();
        return true;

    } else {

        fail();
        return false;
    }
}

function mbstringExtensionCheck()
{
    $results = gatherExtensionDetails('mbstring');

    if ($results === false) {

        global $detail;

        $detail = 'mbstring extension is missing, but this extension is only required if you intend to run TubePress Pro in a standalone PHP environment';

        warn();
        return true;
    }

    passExtensionDontCareVersion($results);
    return true;
}

function apcExtensionCheck()
{
    $apcResults  = gatherExtensionDetails('apc');
	$apcuResults = gatherExtensionDetails('apcu');

    if ($apcResults !== false) {

        global $detail;

        $detail = 'APC extension is loaded. This extension is obsolete and not compatible with TubePress.';

		if ($apcuResults !== false) {

			warn();
			return true;
		}

        fail();
        return false;
    }

    return true;
}


$checks = array(

    array('phpVersion', 'PHP version'),
    array('mbstringExtension', 'mbstring extension'),
    array('apcExtension', 'APC extension'),
);

global $detail, $failureCount, $warningCount, $passCount;

$checksIndex  = 1;
$checksCount  = count($checks);
$detail       = null;
$failureCount = 0;
$warningCount = 0;
$passCount    = 0;


foreach ($checks as $check) {

    $detail = null;

    echo "\n<i>Check ($checksIndex / $checksCount):</i> " . $check[1] . '... ';

    $checksIndex++;

    if (call_user_func($check[0] . 'Check') === false) {

        break;
    }
}

if ($failureCount > 0) {

    echo "<span style=\"font-size: larger; color: red\">This server does not meet the requirements for TubePress</span>";

} else {

    if ($warningCount > 0) {

        echo "<span style=\"font-size: larger; color: orange\">Checks passed, but there were warnings. This server <i>might</i> meet the requirements for TubePress</span>";

    } else {

        echo "<span style=\"font-size: larger; color: green\">All checks passed! This server meets the requirements for TubePress</span>";
    }
}

echo "<br /><br />";

phpinfo();
?>
</body>
</html>
	<?php
	/**
	* Copyright (c) 2012 - 2015 Eric Hough (eric@tubepress.com)
	*
	* Permission is hereby granted, free of charge, to any person obtaining
	* a copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	* THE SOFTWARE.
	*/
	?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd">

	<html>
	<head>
	<title>TubePress Requirements Check</title>
	</head>
	<body>
	<p>Check TubePress requirements...</p>

	<?php

	@ini_set('display_errors', 1);

	function msg($color, $text)
	{
	global $detail;

	echo "<span style=\"color: $color\">$text</span>";

	if ($detail !== null) {

	echo " <span style=\"font-size:smaller; color:gray\">($detail)</span>";
	}

	echo "<br /><br />";
	}

	function pass()
	{
	global $passCount;

	$passCount++;

	msg('green', 'OK');
	}

	function fail()
	{
	global $failureCount;

	$failureCount++;

	msg('red', 'FAIL');
	}

	function warn()
	{
	global $warningCount;

	$warningCount++;

	msg('orange', 'WARN');
	}

	function findExtension($name)
	{
	$extensions = get_loaded_extensions();

	foreach ($extensions as $extension) {

	if (strcasecmp($extension, $name) === 0) {

	return $extension;
	}
	}

	return null;
	}

	function gatherExtensionDetails($name)
	{
	$extension = findExtension($name);

	if ($extension === null) {

	return false;
	}

	return array($extension, phpversion($extension));
	}

	function passExtensionDontCareVersion($results)
	{
	global $detail;

	if (isset($results[1]) && $results[1] !== false) {

	$detail = 'detected ' . $results[0] . ' extension version ' . $results[1];

	} else {

	$detail = 'detected ' . $results[0] . ' extension';
	}

	pass();
	}

	function passExtensionDoCareVersion($results)
	{
	global $detail;

	if (isset($results[1]) && $results[1] !== false) {

	$detail = 'detected ' . $results[0] . ' extension version ' . $results[1];
	pass();

	} else {

	$detail = $results[0] . ' detected, but unable to determine version - please manually verify the version below.';
	warn();
	}
	}

	function phpVersionCheck()
	{
	global $detail;

	$detail = 'detected PHP version ' . PHP_VERSION;

	if (version_compare(PHP_VERSION, '5.2.9') >= 0) {

	pass();
	return true;

	} else {

	fail();
	return false;
	}
	}

	function mbstringExtensionCheck()
	{
	$results = gatherExtensionDetails('mbstring');

	if ($results === false) {

	global $detail;

	$detail = 'mbstring extension is missing, but this extension is only required if you intend to run TubePress Pro in a standalone PHP environment';

	warn();
	return true;
	}

	passExtensionDontCareVersion($results);
	return true;
	}

	function apcExtensionCheck()
	{
	$apcResults = gatherExtensionDetails('apc');
	$apcuResults = gatherExtensionDetails('apcu');

	if ($apcResults !== false) {

	global $detail;

	$detail = 'APC extension is loaded. This extension is obsolete and not compatible with TubePress.';

	if ($apcuResults !== false) {

	warn();
	return true;
	}

	fail();
	return false;
	}

	return true;
	}


	$checks = array(

	array('phpVersion', 'PHP version'),
	array('mbstringExtension', 'mbstring extension'),
	array('apcExtension', 'APC extension'),
	);

	global $detail, $failureCount, $warningCount, $passCount;

	$checksIndex = 1;
	$checksCount = count($checks);
	$detail = null;
	$failureCount = 0;
	$warningCount = 0;
	$passCount = 0;


	foreach ($checks as $check) {

	$detail = null;

	echo "\n<i>Check ($checksIndex / $checksCount):</i> " . $check[1] . '... ';

	$checksIndex++;

	if (call_user_func($check[0] . 'Check') === false) {

	break;
	}
	}

	if ($failureCount > 0) {

	echo "<span style=\"font-size: larger; color: red\">This server does not meet the requirements for TubePress</span>";

	} else {

	if ($warningCount > 0) {

	echo "<span style=\"font-size: larger; color: orange\">Checks passed, but there were warnings. This server <i>might</i> meet the requirements for TubePress</span>";

	} else {

	echo "<span style=\"font-size: larger; color: green\">All checks passed! This server meets the requirements for TubePress</span>";
	}
	}

	echo "<br /><br />";

	phpinfo();
	?>
	</body>
	</html>