<?php
/*
	autoconfigbackup.inc
	part of pfSense (https://www.pfSense.org/)
	Copyright (C) 2008-2015 Electric Sheep Fencing LP
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/
require_once("filter.inc");
require_once("notices.inc");

$pf_version = substr(trim(file_get_contents("/etc/version")), 0, 3);
if ($pf_version < 2.0) {
	require_once("crypt_acb.php");
}

// Plugin moved to save only
unlink_if_exists("/usr/local/pkg/parse_config/parse_config_upload.inc");
unlink_if_exists("/usr/local/pkg/parse_config/parse_config_upload.php");

// Ensures patches match
function custom_php_validation_command($post, &$input_errors) {
	global $_POST, $savemsg, $config;

	if (!$post['username']) {
		$input_errors[] = "Username is required.";
	}

	if (!$post['password'] or !$post['passwordagain']) {
		$input_errors[] = "The subscription password is required.";
	}

	if (!$post['crypto_password'] or !$post['crypto_password2']) {
		$input_errors[] = "The encryption password is required.";
	}

	if ($post['password'] <> $post['passwordagain']) {
		$input_errors[] = "Sorry, the entered portal.pfsense.org passwords do not match.";
	}

	if ($post['crypto_password'] <> $post['crypto_password2']) {
		$input_errors[] = "Sorry, the entered encryption passwords do not match.";
	}

	if ($post['testconnection']) {
		$status = test_connection($post);
		if ($status) {
			$savemsg = "Connection to portal.pfsense.org was tested with no errors.";
		}
	}

	// We do not need to store this value.
	unset($_POST['testconnection']);
}

function configure_proxy() {
	global $config;
	$ret = array();
	if (!empty($config['system']['proxyurl'])) {
		$ret[CURLOPT_PROXY] = $config['system']['proxyurl'];
		if (!empty($config['system']['proxyport'])) {
			$ret[CURLOPT_PROXYPORT] = $config['system']['proxyport'];
		}
		if (!empty($config['system']['proxyuser']) && !empty($config['system']['proxypass'])) {
			$ret[CURLOPT_PROXYAUTH] = CURLAUTH_ANY | CURLAUTH_ANYSAFE;
			$ret[CURLOPT_PROXYUSERPWD] = "{$config['system']['proxyuser']}:{$config['system']['proxypass']}";
		}
	}
	return $ret;
}

function test_connection($post) {
	global $savemsg, $config, $g;

	// Do nothing when booting
	if (platform_booting()) {
		return;
	}

	// Seperator used during client / server communications
	$oper_sep = "\|\|";

	// Encryption password
	$decrypt_password = $post['crypto_password'];

	// Defined username
	$username = $post['username'];

	// Defined password
	$password = $post['password'];

	// Set hostname
	$hostname = $config['system']['hostname'] . "." . $config['system']['domain'];

	// URL to restore.php
	$get_url = "https://portal.pfsense.org/pfSconfigbackups/restore.php";

	// Populate available backups
	$curl_session = curl_init();
	curl_setopt($curl_session, CURLOPT_URL, $get_url);
	curl_setopt($curl_session, CURLOPT_HTTPHEADER, array("Authorization: Basic " . base64_encode("{$username}:{$password}")));
	curl_setopt($curl_session, CURLOPT_SSL_VERIFYPEER, 0);
	curl_setopt($curl_session, CURLOPT_POST, 1);
	curl_setopt($curl_session, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($curl_session, CURLOPT_CONNECTTIMEOUT, 55);
	curl_setopt($curl_session, CURLOPT_TIMEOUT, 30);
	curl_setopt($curl_session, CURLOPT_USERAGENT, $g['product_name'] . '/' . rtrim(file_get_contents("/etc/version")));
	// Proxy
	curl_setopt_array($curl_session, configure_proxy());

	curl_setopt($curl_session, CURLOPT_POSTFIELDS, "action=showbackups&hostname={$hostname}");
	$data = curl_exec($curl_session);

	if (curl_errno($curl_session)) {
		return("An error occurred " . curl_error($curl_session));
	} else {
		curl_close($curl_session);
	}
	return;
}

function upload_config($reasonm = "") {
	global $config, $g, $input_errors;

	// Do nothing when booting
	if (platform_booting()) {
		return;
	}

	/*
	 * pfSense upload config to pfSense.org script
	 * This file plugs into config.inc (/usr/local/pkg/parse_config)
	 * and runs every time the running firewall filter changes.
	 *
	 */

	if (file_exists("/tmp/acb_nooverwrite")) {
		unlink("/tmp/acb_nooverwrite");
		$nooverwrite = "true";
	} else {
		$nooverwrite = "false";
	}

	// Define some needed variables
	if (file_exists("/cf/conf/lastpfSbackup.txt")) {
		$last_backup_date = str_replace("\n", "", file_get_contents("/cf/conf/lastpfSbackup.txt"));
	} else {
		$last_backup_date = "";
	}

	$last_config_change = $config['revision']['time'];
	$hostname = $config['system']['hostname'] . "." . $config['system']['domain'];
	if ($reasonm) {
		$reason = $reasonm;
	} else {
		$reason	= $config['revision']['description'];
	}
	$username = $config['installedpackages']['autoconfigbackup']['config'][0]['username'];
	$password = $config['installedpackages']['autoconfigbackup']['config'][0]['password'];
	$encryptpw = $config['installedpackages']['autoconfigbackup']['config'][0]['crypto_password'];

	// Define upload_url, must be present after other variable definitions due to username, password
	$upload_url = "https://portal.pfsense.org/pfSconfigbackups/backup.php";

	if (!$username or !$password or !$encryptpw) {
		if (!file_exists("/cf/conf/autoconfigback.notice")) {
			$notice_text = "Either the username, password or encryption password is not set for Automatic Configuration Backup.";
			$notice_text .= " Please correct this in Diagnostics -> AutoConfigBackup -> Settings.";
			//log_error($notice_text);
			//file_notice("AutoConfigBackup", $notice_text, $notice_text, "");
			conf_mount_rw();
			touch("/cf/conf/autoconfigback.notice");
			conf_mount_ro();
		}
	} else {
		/* If configuration has changed, upload to pfS */
		if ($last_backup_date <> $last_config_change) {

			// Mount RW (if needed)
			conf_mount_rw();

			$notice_text = "Beginning https://portal.pfsense.org configuration backup.";
			log_error($notice_text);
			update_filter_reload_status($notice_text);

			// Encrypt config.xml
			$data = file_get_contents("/cf/conf/config.xml");
			$raw_config_sha256_hash = trim(shell_exec("/sbin/sha256 /cf/conf/config.xml | /usr/bin/awk '{ print $4 }'"));
			$data = encrypt_data($data, $encryptpw);
			tagfile_reformat($data, $data, "config.xml");

			$post_fields = array(
				'reason' => urlencode((string)$reason),
				'hostname' => urlencode($hostname),
				'configxml' => urlencode($data),
				'nooverwrite' => urlencode($nooverwrite),
				'raw_config_sha256_hash' => urlencode($raw_config_sha256_hash)
			);

			// URL-ify the data for the POST
			foreach ($post_fields as $key=>$value) {
				$fields_string .= $key . '=' . $value . '&';
			}
			rtrim($fields_string,'&');

			// Check configuration into the ESF repo
			$curl_session = curl_init();
			curl_setopt($curl_session, CURLOPT_URL, $upload_url);
			curl_setopt($curl_session, CURLOPT_HTTPHEADER, array("Authorization: Basic " . base64_encode("{$username}:{$password}")));
			curl_setopt($curl_session, CURLOPT_POST, count($post_fields));
			curl_setopt($curl_session, CURLOPT_POSTFIELDS, $fields_string);
			curl_setopt($curl_session, CURLOPT_RETURNTRANSFER, 1);
			curl_setopt($curl_session, CURLOPT_SSL_VERIFYPEER, 0);
			curl_setopt($curl_session, CURLOPT_CONNECTTIMEOUT, 55);
			curl_setopt($curl_session, CURLOPT_TIMEOUT, 30);
			curl_setopt($curl_session, CURLOPT_USERAGENT, $g['product_name'] . '/' . rtrim(file_get_contents("/etc/version")));
			// Proxy
			curl_setopt_array($curl_session, configure_proxy());

			$data = curl_exec($curl_session);
			if (curl_errno($curl_session)) {
				$fd = fopen("/tmp/backupdebug.txt", "w");
				fwrite($fd, $upload_url . "" . $fields_string . "\n\n");
				fwrite($fd, $data);
				fwrite($fd, curl_error($curl_session));
				fclose($fd);
			} else {
				curl_close($curl_session);
			}

			if (!strstr($data, "500")) {
				$notice_text = "An error occurred while uploading your pfSense configuration to portal.pfsense.org";
				log_error($notice_text . " - " . $data);
				file_notice("autoconfigurationbackup", $notice_text, $data, "");
				update_filter_reload_status($notice_text . " - " . $data);
			} else {
				// Update last pfS backup time
				$fd = fopen("/cf/conf/lastpfSbackup.txt", "w");
				fwrite($fd, $config['revision']['time']);
				fclose($fd);
				$notice_text = "End of portal.pfsense.org configuration backup (success).";
				log_error($notice_text);
				update_filter_reload_status($notice_text);
			}

			// Mount image RO (if needed)
			conf_mount_ro();

		} else {
			// Debugging
			//log_error("No https://portal.pfsense.org backup required.");
		}
	}
}

?>