<?php

//
// SoftNAS getsupport.php script
// Copyright 2015 SoftNAS, Inc. - All Rights Reserved
// https://www.softnas.com/helpdesk
// support@softnas.com
//

logit('SoftNAS Support Reporting Utility Starting');

$URL_SUPPORT_API=getenv('URL_SUPPORT_API');
if (!$URL_SUPPORT_API) {
	$BRANCH = getenv('BRANCH');
	if (empty($BRANCH)) {
		$URL_SUPPORT_API='https://www.softnas.com/getsupport/';
	} else {
		$URL_SUPPORT_API='https://www.softnas.com/getsupport/' . $BRANCH . '/';
	}
}
$URL_HELP='https://www.softnas.com/helpdesk';
$EMAIL_HELP='support@softnas.com';
$SOFTNAS_BASE='/var/www/softnas';
$SOFTNAS_LOGS=$SOFTNAS_BASE . '/logs';
$SOFTNAS_CONFIG=$SOFTNAS_BASE . '/config/softnas.ini';

// Terminate with the specified error message
function onFatalError($msg) {
	global $URL_HELP;
	global $EMAIL_HELP;

	echo 'ERROR: ' . $msg . "\n";
	echo 'For help with this error, please visit: ' . $URL_HELP . ' or email ' . $EMAIL_HELP . "\n";
	logit('SoftNAS Support Reporting Utility Exiting with ERROR');
	die;
}

function logit($msg) {
	echo date("YmdHis") . ' ' . $msg . "\n"; 
}

if (!file_exists($SOFTNAS_BASE)) {
	onFatalError('This does not appear to be a SoftNAS Cloud virtual appliance');
}

logit('Reading SoftNAS configuration data');
$softnas_config = parse_ini_file($SOFTNAS_CONFIG, true);
if (!$softnas_config) {
	onFatalError('Unable to parse the SoftNAS system configuration file');
}

if ($argc > 1) {
	$email = $argv[1];
	$support_ticket = array_key_exists(2, $argv) ? $argv[2] : "none";
} else {
	$email = "";
	$support_ticket = "none";
}
if (empty($email)) {
	$email = getenv('EMAIL');
}
if (empty($email)) {
	$email = $softnas_config['support']['useremail'];
}
if (empty($email)) {
	onFatalError('You must provide a valid email address that is registered with the SoftNAS Helpdesk');
}
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
	onFatalError('The provided email address does not appear to be a valid email: ' . $email);
}

$softnas_id = $softnas_config['system']['platform'] . ":" . $softnas_config['system']['hwid'];
if (empty($softnas_id)) {
	onFatalError('Unable to retrieve the system identification string');
}
$request = array('email' => $email, 'instance_id' => $softnas_id . '_Support_Ticket=' . $support_ticket);
$diag_script = tempnam('/tmp','sndiag');
if (FALSE == $diag_script) {
	onFatalError('Unable to create a temporary file. Perhaps the root file system is full or mounted read only?');
}
$diag_log = tempnam('/var/www/softnas/logs/','diaglog-');
if (FALSE == $diag_log) {
	onFatalError('Unable to create a temporary file. Perhaps the root file system is full or mounted read only?');
}
chmod($diag_log,0644);

logit('Retrieving diagnostics module from SoftNAS');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $URL_SUPPORT_API . '/diagnostics.src');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
if (!$output) {
	$info = curl_getinfo($ch);
	onFatalError('Diagnostics module retrieval failure: ' . $info['http_code'] . ' ' . curl_error($ch));
}
$info = curl_getinfo($ch);
if ($info['http_code'] != 200) {
	onFatalError('Diagnostics module HTTP Failure: Response Code ' . $info['http_code'] . "\n" . $output);
}
curl_close($ch);
if (FALSE == file_put_contents($diag_script,$output)) {
	onFatalError('Failed to write diagnostics module to ' . $diag_script);
}

logit('Requesting an upload URL from SoftNAS');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $URL_SUPPORT_API);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
$output = curl_exec($ch);
if (!$output) {
	$info = curl_getinfo($ch);
	onFatalError('API Failure: ' . $info['http_code'] . ' ' . curl_error($ch));
}
$info = curl_getinfo($ch);
if ($info['http_code'] != 200) {
	onFatalError('HTTP Failure: Response Code ' . $info['http_code'] . "\n" . $output);
}
curl_close($ch);

$response = json_decode($output,true);
if (!$response) {
	onFatalError('Invalid Response: ' . $output);
}

if ($response['success'] != true) {
	onFatalError('Request Failed: ' . $response['msg']);
}

$upload_url = $response['url_put'];
if (!$upload_url) {
	onFatalError('The API indicated the operation was successful but failed to provide an upload URL for the support report');
}
$download_url = $response['url_get'];
if (!$download_url) {
	onFatalError('The API indicated the operation was successful but failed to provide a download URL for the support report');
}

logit("After this process is complete, your support report can be accessed\nfor 7 days at the following URL:\n\n" . $download_url . "\n\n");

logit('Starting diagnostics gathering process...');
if (FALSE == chmod($diag_script,0700)) {
	onFatalError('Unable to set executable');
}
if (FALSE === system('nohup ' . $diag_script . " '$upload_url'" .' &> ' . $diag_log . ' </dev/null &')) {
	onFatalError('Failed to start the diagnostics script');
}

logit('Diagnostics are now being gathered in the background.');
logit('A log file is being generated: ' . $diag_log);
logit('You can monitor the progress and result of this process by running the command:');
logit('cat ' . $diag_log);

?>