pfSense

/*

 * diag_command.php

 *

 * part of pfSense (https://www.pfsense.org)

 * Copyright (c) 2004-2013 BSD Perimeter

 * Copyright (c) 2014-2020 Rubicon Communications, LLC (Netgate)

 * All rights reserved.

 *

 * Exec+ v1.02-000 - Copyright 2001-2003, All rights reserved

 *

 * originally based on m0n0wall (http://m0n0.ch/wall)

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 */

##|+PRIV

##|*NAME=Diagnostics: Command

##|*DESCR=Allow access to the 'Diagnostics: Command' page.

##|*WARN=standard-warning-root

##|*MATCH=diag_command.php*

##|-PRIV

$allowautocomplete = true;

require_once("guiconfig.inc");

if ($_POST['submit'] == "DOWNLOAD" && file_exists($_POST['dlPath'])) {

	session_cache_limiter('public');

	send_user_download('file', $_POST['dlPath']);

} else if ($_POST['submit'] == "UPLOAD" && is_uploaded_file($_FILES['ulfile']['tmp_name'])) {

	move_uploaded_file($_FILES['ulfile']['tmp_name'], $g["tmp_path"] . "/" . $_FILES['ulfile']['name']);

}

// Function: is Blank

function isBlank($arg) {

	return preg_match("/^\s*$/", $arg);

}

function puts($arg) {

$pgtitle = array(gettext("Diagnostics"), gettext("Command Prompt"));

include("head.inc");

?>

<script type="text/javascript">

	// Create recall buffer array (of encoded strings).

<?php

if (isBlank($_POST['txtRecallBuffer'])) {

	puts("	 var arrRecallBuffer = new Array;");

} else {

	puts("	 var arrRecallBuffer = new Array(");

	$arrBuffer = explode("&", $_POST['txtRecallBuffer']);

		puts("		'" . htmlspecialchars($arrBuffer[$i], ENT_QUOTES | ENT_HTML401) . "',");

	}

	puts("		'" . htmlspecialchars($arrBuffer[count($arrBuffer) - 1], ENT_QUOTES | ENT_HTML401) . "'");

}

	// Set pointer to end of recall buffer.

	// Functions to extend String class.

		if (!isBlank(form.txtCommand.value)) {

			if (isBlank(form.txtRecallBuffer.value)) {

				form.txtRecallBuffer.value = form.txtCommand.value.encode();

			} else {

				form.txtRecallBuffer.value += '&' + form.txtCommand.value.encode();

			}

		}

	// Function: btnRecall onClick (event handler)

		// If nothing in recall buffer, then error.

			alert('<?=gettext("Nothing to recall"); ?>!');

			form.txtCommand.focus();

		// Increment recall buffer pointer in positive or negative direction

		// Make sure the buffer stays circular.

		// Recall the command.

	// Function: Reset onClick (event handler)

		// Reset recall buffer pointer.

		// Clear form (could have spaces in it) and return focus ready for cmd.

		return true;

//]]>

</script>

<?php

if (isBlank($_POST['txtCommand']) && isBlank($_POST['txtPHPCommand']) && isBlank($ulmsg)) {

	print_callout(gettext("The capabilities offered here can be dangerous. No support is available. Use them at your own risk!"), 'danger', gettext('Advanced Users Only'));

}

if ($_POST['submit'] == "EXEC" && !isBlank($_POST['txtCommand'])):?>

	<div class="panel panel-success responsive">

		<div class="panel-heading"><h2 class="panel-title"><?=sprintf(gettext('Shell Output - %s'), htmlspecialchars($_POST['txtCommand']))?></h2></div>

		<div class="panel-body">

			<div class="content">

<?php

	putenv("PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin");

	$output = array();

?>

		</div>

<?php endif; ?>

<form action="diag_command.php" method="post" enctype="multipart/form-data" name="frmExecPlus" onsubmit="return frmExecPlus_onSubmit( this );">

	<div class="panel panel-default">

		<div class="panel-heading"><h2 class="panel-title"><?=gettext('Execute Shell Command')?></h2></div>

		<div class="panel-body">

			<div class="content">

				<input id="txtCommand" name="txtCommand" placeholder="Command" type="text" class="col-sm-7"	 value="<?=htmlspecialchars($_POST['txtCommand'])?>" />

				<br /><br />

					<button type="button" class="btn btn-success btn-sm" name="btnRecallPrev" onclick="btnRecall_onClick( this.form, -1 );" title="<?=gettext("Recall Previous Command")?>">

						<i class="fa fa-angle-double-left"></i>

					<button name="submit" type="submit" class="btn btn-warning btn-sm" value="EXEC" title="<?=gettext("Execute the entered command")?>">

						<i class="fa fa-bolt"></i>

						<?=gettext("Execute"); ?>

					<button type="button" class="btn btn-success btn-sm" name="btnRecallNext" onclick="btnRecall_onClick( this.form,  1 );" title="<?=gettext("Recall Next Command")?>">

						<i class="fa fa-angle-double-right"></i>

					</button>

					<button style="margin-left: 10px;" type="button" class="btn btn-default btn-sm" onclick="return Reset_onClick( this.form );" title="<?=gettext("Clear command entry")?>">

						<i class="fa fa-undo"></i>

			</div>

		</div>

		<div class="panel-heading"><h2 class="panel-title"><?=gettext('Download File')?></h2></div>

		<div class="panel-body">

			<div class="content">

				<input name="dlPath" type="text" id="dlPath" placeholder="File to download" class="col-sm-4" value="<?=htmlspecialchars($_REQUEST['dlPath']);?>"/>

				<br /><br />

				<button name="submit" type="submit" class="btn btn-primary btn-sm" id="download" value="DOWNLOAD">

			</div>

		</div>

<?php

	if ($ulmsg) {

		print_info_box($ulmsg, 'success', false);

	}

?>

		<div class="panel-heading"><h2 class="panel-title"><?=gettext('Upload File')?></h2></div>

		<div class="panel-body">

			<div class="content">

				<button name="submit" type="submit" class="btn btn-primary btn-sm" id="upload" value="UPLOAD">

			</div>

		</div>

	// Experimental version. Writes the user's php code to a file and executes it via a new instance of PHP

	if ($_POST['submit'] == "EXECPHP" && !isBlank($_POST['txtPHPCommand'])) {

		safe_mkdir($g['tmp_path_user_code']);     //create if doesn't exist

		$phpcode = <<<END_FILE

// USER CODE STARTS HERE:

%s

		exec("/usr/local/bin/php -d log_errors=off {$tmpfile}", $output, $retval);

		$errmsg_found = preg_match("`error.*:.* (?:in|File:) {$tmpfile}(?:\(| on line |, Line: )(\d+)(?:, Message:|\).* eval\(\)'d code|$)`i", implode("\n", $output), $matches);

		if ($retval || $errmsg_found) {

			 *   "PHP ERROR: Type: NN, File: FILE, Line: NN, Message: ERR_DETAILS"

			 *   "Parse error: syntax error, unexpected end of file in FILE(NN) : eval()'d code on line 1" [the number in (..) is the error line]

			*/

			if ($matches[1] > $lineno_correction) {

			$syntax_output = array();

			$margin_layout = '%3s %' . strlen(count($syntax_output)) . 'd:';

			for ($lineno = 1; $lineno < count($syntax_output) - $lineno_correction; $lineno++) {

				$margin = str_replace(' ', ' ', sprintf($margin_layout, ($lineno == $errline ? '>>>' : ''), $lineno));

			}

			print_info_box($errtext, 'danger');

		}

		$output = implode("\n", $output);

//		echo eval($_POST['txtPHPCommand']);

		puts("</div>");

?>

<script type="text/javascript">

	events.push(function() {

		// scroll error locator if needed (does nothing if no error)

		// Scroll to the bottom of the page to more easily see the results of a PHP exec command

//]]>

</script>

}

?>

	<div class="panel panel-default responsive">

		<div class="panel-heading"><h2 class="panel-title"><?=gettext('Execute PHP Commands')?></h2></div>

		<div class="panel-body">

			<div class="content">

				<button name="submit" type="submit" class="btn btn-warning btn-sm" value="EXECPHP" title="<?=gettext("Execute this PHP Code")?>">

					<i class="fa fa-bolt"></i>

					<?=gettext("Execute")?>

				<?=gettext("Example"); ?>: <code>print("Hello World!");</code>

		</div>

</form>

include("foot.inc");

if ($_POST) {