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MeshAgent/modules/win-firewall.js
2020-02-07 08:18:37 -08:00

351 lines
12 KiB
JavaScript

/*
Copyright 2020 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
var promise = require('promise');
var winreg = require('win-registry');
function parseCmdletOutput(data)
{
var touched;
var ret = [];
var chunks = data.trim().split('\r\n\r\n');
var lines, x, obj;
for (var i = 0; i < chunks.length; ++i)
{
obj = {}; touched = false;
lines = chunks[i].split('\r\n');
for (x = 0; x < lines.length; ++x)
{
var d = lines[x].indexOf(':');
var key = lines[x].substring(0, d).trim();
var value = lines[x].substring(d + 1).trim();
if (key != "") { obj[key] = value; touched = true; }
}
if (touched) { ret.push(obj); }
}
return (ret);
}
function fetchPortFilters(rules)
{
var i;
if (!Array.isArray(rules))
{
rules = [rules];
}
for (i = 0; i < rules.length; ++i)
{
filter = winreg.QueryKey(winreg.HKEY.LocalMachine, 'SYSTEM\\CurrentControlSet\\Services\\SharedAccess\\Parameters\\FirewallPolicy\\FirewallRules', rules[i].Name);
tokens = filter.split('|');
for (k = 0; k < tokens.length; ++k)
{
if ((tokenX = tokens[k].indexOf('=')) > 0)
{
switch (tokens[k].substring(0, tokenX))
{
case 'Protocol':
rules[i].Protocol = tokens[k].substring(tokenX + 1);
break;
case 'LPort':
rules[i].LocalPort = tokens[k].substring(tokenX + 1);
break;
case 'RPort':
rules[i].RemotePort = tokens[k].substring(tokenX + 1);
break;
case 'App':
rules[i].Program = tokens[k].substring(tokenX + 1);
break;
}
}
}
}
}
function getFirewallRules(options)
{
var p = new promise(function (a, r) { this._res = a; this._rej = r; });
require('events').EventEmitter.call(p, true)
.createEvent('firewallRule');
var retVal = [], filter = [];
var command = 'Get-NetFirewallRule';
if (options.program) { command = 'Get-NetFirewallApplicationFilter -Program \\"' + options.program + '\\" | ' + command; }
if (require('os').arch() == 'x64')
{
p.child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
else
{
p.child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
p.options = options;
p.child.parent = p;
p.child.stdout.str = ''; p.child.stdout.on('data', function (c)
{
var command;
this.str += c.toString();
if(this.parent.parent.listenerCount('firewallRule')>0)
{
var i;
if((i=this.str.indexOf('\r\n\r\n'))>=0)
{
var filter, k, tokens, tokenX;
var j = this.str.substring(0, i);
this.str = this.str.substring(i + 4);
j = parseCmdletOutput(j);
fetchPortFilters(j);
for(i=0;i<j.length;++i)
{
this.parent.parent.emit('firewallRule', j[i]);
}
}
}
});
p.child.stderr.str = ''; p.child.stderr.on('data', function (c) { this.str += c.toString(); });
p.child.on('exit', function ()
{
var command, i, j, child, filter;
if (this.stderr.str.trim() != "") { this.parent._rej(this.stderr.str.trim()); return; }
if (this.parent.listenerCount('firewallRule') > 0)
{
this.parent._res();
return;
}
var objArr = parseCmdletOutput(this.stdout.str);
fetchPortFilters(objArr);
this.parent._res(objArr);
});
return (p);
}
function disableFirewallRules(options)
{
var ret = new promise(function (a, r) { this._res = a; this._rej = r; });
var p = getFirewallRules(options).on('firewallRule', function (r) { if (this._count == null) { this._count = 0; } ++this._count; });
p.options = options;
p.ret = ret;
p.then(function (a)
{
if(this._count > 0)
{
var command = 'Disable-NetFirewallRule';
if (this.options.program) { command = 'Get-NetFirewallApplicationFilter -Program \\"' + this.options.program + '\\" | ' + command; }
var child;
if (require('os').arch() == 'x64')
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
else
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
child.waitExit();
if (child.stderr.str.trim() != "")
{
this.ret._rej(child.stderr.str.trim());
}
else
{
this.ret._res();
}
}
}, function (e) { this.ret._rej(e); });
return (ret);
}
function enableFirewallRules(options)
{
var ret = new promise(function (a, r) { this._res = a; this._rej = r; });
var p = getFirewallRules(options).on('firewallRule', function (r) { if (this._count == null) { this._count = 0; } ++this._count; });
p.options = options;
p.ret = ret;
p.then(function (a)
{
if (this._count > 0)
{
var command = 'Enable-NetFirewallRule';
if (this.options.program) { command = 'Get-NetFirewallApplicationFilter -Program \\"' + this.options.program + '\\" | ' + command; }
var child;
if (require('os').arch() == 'x64')
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
else
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
child.waitExit();
if (child.stderr.str.trim() != "")
{
this.ret._rej(child.stderr.str.trim());
}
else
{
this.ret._res();
}
}
}, function (e) { this.ret._rej(e); });
return (ret);
}
function verifyValues(optionsInput, keyName, keyValues, defaultValue)
{
var i, j, tmp, ok;
for (var key in optionsInput)
{
if(keyName.toLowerCase() == key.toLowerCase())
{
tmp = optionsInput[key];
delete optionsInput[key];
if (keyValues == null)
{
optionsInput[keyName] = tmp;
return;
}
else
{
if (tmp!=null) { tmp = tmp.toString().split(','); }
for (j = 0; j < tmp.length; ++j)
{
ok = false;
for (i=0;i<keyValues.length;++i)
{
if (keyValues[i].toString().toLowerCase() == tmp[j].toString().trim().toLowerCase())
{
optionsInput[keyName] = (optionsInput[keyName] == null ? keyValues[i] : (optionsInput[keyName] + ', ' + keyValues[i]));
ok = true;
break;
}
}
if (!ok)
{
throw ('Invalid value for [' + keyName + ']: ' + tmp[j]);
}
}
if (optionsInput[keyName] != null) { return; }
}
}
}
// If we got here, then the key doesn't exist... Check to see if we need to put in a default value
if(defaultValue != null)
{
optionsInput[keyName] = defaultValue;
}
}
function convertOptions(options)
{
verifyValues(options, 'Action', ['NotConfigured', 'Allow', 'Block']);
verifyValues(options, 'Authentication', ['NotRequired', 'Required', 'NoEncap']);
verifyValues(options, 'Description');
verifyValues(options, 'Direction', ['Inbound', 'Outbound']);
verifyValues(options, 'DisplayName');
verifyValues(options, 'DynamicTarget', ['Any', 'ProximityApps', 'ProximitySharing', 'WifiDirectPrinting', 'WifiDirectDisplay', 'WifiDirectDevices'], 'Any');
verifyValues(options, 'EdgeTraversalPolicy', ['Block', 'Allow', 'DeferToUser', 'DeferToApp']);
verifyValues(options, 'Enabled', ['True', 'False'], 'True');
verifyValues(options, 'Encryption', ['NotRequired', 'Required', 'Dynamic']);
verifyValues(options, 'InterfaceType', ['Any', 'Wired', 'Wireless', 'RemoteAccess]'], 'Any');
verifyValues(options, 'LocalAddress');
verifyValues(options, 'LocalOnlyMapping', ['True', 'False']);
verifyValues(options, 'LocalPort');
verifyValues(options, 'LocalUser');
verifyValues(options, 'LooseSourceMapping', ['True', 'False']);
verifyValues(options, 'Name');
verifyValues(options, 'OverrideBlockRules', ['True', 'False']);
verifyValues(options, 'Owner');
verifyValues(options, 'Package');
verifyValues(options, 'Platform');
verifyValues(options, 'PolicyStore');
verifyValues(options, 'Profile', ['Any', 'Domain', 'Private', 'Public', 'NotApplicable'], 'Any');
verifyValues(options, 'Program');
verifyValues(options, 'Protocol');
verifyValues(options, 'RemoteAddress');
verifyValues(options, 'RemoteMachine');
verifyValues(options, 'RemotePort');
return (options);
}
function addFirewallRule(options)
{
var command = 'New-NetFirewallRule';
var val = convertOptions(options);
var key;
console.log(JSON.stringify(val, null, 1));
for (key in val)
{
if (val[key].toString().indexOf(' ') >= 0)
{
command += (' -' + key + ' \\"' + val[key] + '\\"');
}
else
{
command += (' -' + key + ' ' + val[key] + '');
}
}
console.log(command);
var child;
if (require('os').arch() == 'x64')
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
else
{
child = require('child_process').execFile(process.env['windir'] + '\\System32\\WindowsPowerShell\\v1.0\\powershell.exe', ['/C "' + command + '"']);
}
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); });
child.waitExit();
if(child.stderr.str.trim() != '')
{
throw (child.stderr.str.trim());
}
}
module.exports =
{
getFirewallRules: getFirewallRules,
disableFirewallRules: disableFirewallRules,
enableFirewallRules: enableFirewallRules,
addFirewallRule: addFirewallRule
};