wireless-tools
Version:
Wireless tools for Node.js
416 lines (357 loc) • 10.8 kB
JavaScript
/*
* Copyright (c) 2015 Christopher M. Baker
*
* 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.
*
*/
var child_process = require('child_process');
/**
* The **wpa_cli** command is used to configure wpa network interfaces.
*
* @private
* @category wpa_cli
*
*/
var wpa_cli = module.exports = {
exec: child_process.exec,
status: status,
bssid: bssid,
reassociate: reassociate,
set: set,
add_network: add_network,
set_network: set_network,
enable_network: enable_network,
disable_network: disable_network,
remove_network: remove_network,
select_network: select_network,
scan: scan,
scan_results: scan_results,
save_config: save_config
};
/**
* Parses the status for a wpa network interface.
*
* @private
* @static
* @category wpa_cli
* @param {string} block The section of stdout for the interface.
* @returns {object} The parsed wpa status.
*
*/
function parse_status_block(block) {
var match;
var parsed = {};
if ((match = block.match(/bssid=([A-Fa-f0-9:]{17})/))) {
parsed.bssid = match[1].toLowerCase();
}
if ((match = block.match(/freq=([0-9]+)/))) {
parsed.frequency = parseInt(match[1], 10);
}
if ((match = block.match(/mode=([^\s]+)/))) {
parsed.mode = match[1];
}
if ((match = block.match(/key_mgmt=([^\s]+)/))) {
parsed.key_mgmt = match[1].toLowerCase();
}
if ((match = block.match(/[^b]ssid=([^\n]+)/))) {
parsed.ssid = match[1];
}
if ((match = block.match(/[^b]pairwise_cipher=([^\n]+)/))) {
parsed.pairwise_cipher = match[1];
}
if ((match = block.match(/[^b]group_cipher=([^\n]+)/))) {
parsed.group_cipher = match[1];
}
if ((match = block.match(/p2p_device_address=([A-Fa-f0-9:]{17})/))) {
parsed.p2p_device_address = match[1];
}
if ((match = block.match(/wpa_state=([^\s]+)/))) {
parsed.wpa_state = match[1];
}
if ((match = block.match(/ip_address=([^\n]+)/))) {
parsed.ip = match[1];
}
if ((match = block.match(/[^_]address=([A-Fa-f0-9:]{17})/))) {
parsed.mac = match[1].toLowerCase();
}
if ((match = block.match(/uuid=([^\n]+)/))) {
parsed.uuid = match[1];
}
if ((match = block.match(/[^s]id=([0-9]+)/))) {
parsed.id = parseInt(match[1], 10);
}
return parsed;
}
/**
* Parses the result for a wpa command over an interface.
*
* @private
* @static
* @category wpa_cli
* @param {string} block The section of stdout for the command.
* @returns {object} The parsed wpa command result.
*
*/
function parse_command_block(block) {
var match;
var parsed = {
result: block.match(/^([^\s]+)/)[1]
};
return parsed;
}
/**
* Parses the status for a wpa wireless network interface.
*
* @private
* @static
* @category wpa_cli
* @param {function} callback The callback function.
*
*/
function parse_status_interface(callback) {
return function(error, stdout, stderr) {
if (error) {
callback(error);
} else {
callback(error, parse_status_block(stdout.trim()));
}
};
}
/**
* Parses the result for a wpa command over an interface.
*
* @private
* @static
* @category wpa_cli
* @param {function} callback The callback function.
*
*/
function parse_command_interface(callback) {
return function(error, stdout, stderr) {
if (error) {
callback(error);
} else {
var output = parse_command_block(stdout.trim());
if (output.result === 'FAIL') {
callback(new Error(output.result));
} else {
callback(error, parse_command_block(stdout.trim()));
}
}
};
}
/**
* Parses the results of a scan_result request.
*
* @private
* @static
* @category wpa_cli
* @param {string} block The section of stdout for the interface.
* @returns {object} The parsed scan results.
*/
function parse_scan_results(block) {
var match;
var results = [];
var lines;
lines = block.split('\n').map(function(item) { return item + "\n"; });
lines.forEach(function(entry){
var parsed = {};
if ((match = entry.match(/([A-Fa-f0-9:]{17})\t/))) {
parsed.bssid = match[1].toLowerCase();
}
if ((match = entry.match(/\t([\d]+)\t+/))) {
parsed.frequency = parseInt(match[1], 10);
}
if ((match = entry.match(/([-][0-9]+)\t/))) {
parsed.signalLevel = parseInt(match[1], 10);
}
if ((match = entry.match(/\t(\[.+\])\t/))) {
parsed.flags = match[1];
}
if ((match = entry.match(/\t([^\t]{1,32}(?=\n))/))) {
parsed.ssid = match[1];
}
if(!(Object.keys(parsed).length === 0 && parsed.constructor === Object)){
results.push(parsed);
}
});
return results;
}
/**
* Parses the status for a scan_results request.
*
* @private
* @static
* @category wpa_cli
* @param {function} callback The callback function.
*
*/
function parse_scan_results_interface(callback) {
return function(error, stdout, stderr) {
if (error) {
callback(error);
} else {
callback(error, parse_scan_results(stdout.trim()));
}
};
}
/**
* Parses the status for wpa network interface.
*
* @private
* @static
* @category wpa
* @param {string} [interface] The wireless network interface.
* @param {function} callback The callback function.
* @example
*
* var wpa_cli = require('wireless-tools/wpa_cli');
*
* wpa_cli.status('wlan0', function(err, status) {
* console.dir(status);
* wpa_cli.bssid('wlan0', '2c:f5:d3:02:ea:dd', 'Fake-Wifi', function(err, data){
* console.dir(data);
* wpa_cli.bssid('wlan0', 'Fake-Wifi', '2c:f5:d3:02:ea:dd', function(err, data){
* if (err) {
* console.dir(err);
* wpa_cli.reassociate('wlan0', function(err, data) {
* console.dir(data);
* });
* }
* });
* });
* });
*
*
*
* // =>
* {
* bssid: '2c:f5:d3:02:ea:d9',
* frequency: 2412,
* mode: 'station',
* key_mgmt: 'wpa2-psk',
* ssid: 'Fake-Wifi',
* pairwise_cipher: 'CCMP',
* group_cipher: 'CCMP',
* p2p_device_address: 'e4:28:9c:a8:53:72',
* wpa_state: 'COMPLETED',
* ip: '10.34.141.168',
* mac: 'e4:28:9c:a8:53:72',
* uuid: 'e1cda789-8c88-53e8-ffff-31c304580c1e',
* id: 0
* }
*
* OK
*
* FAIL
*
* OK
*
*/
function status(interface, callback) {
var command = [ 'wpa_cli -i', interface, 'status'].join(' ');
return this.exec(command, parse_status_interface(callback));
}
function bssid(interface, ap, ssid, callback) {
var command = ['wpa_cli -i', interface, 'bssid', ssid, ap].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function reassociate(interface, callback) {
var command = ['wpa_cli -i',
interface,
'reassociate'].join(' ');
return this.exec(command, parse_command_interface(callback));
}
/* others commands not tested
//ap_scan 1
// set_network 0 0 scan_ssid 1
// set: set,
// add_network: add_network,
// set_network: set_network,
// enable_network: enable_network
*/
function set(interface, variable, value, callback) {
var command = ['wpa_cli -i',
interface,
'set',
variable,
value ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function add_network(interface, callback) {
var command = ['wpa_cli -i',
interface,
'add_network' ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function set_network(interface, id, variable, value, callback) {
var command = ['wpa_cli -i',
interface,
'set_network',
id,
variable,
value ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function enable_network(interface, id, callback) {
var command = ['wpa_cli -i',
interface,
'enable_network',
id ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function disable_network(interface, id, callback) {
var command = ['wpa_cli -i',
interface,
'disable_network',
id ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function remove_network(interface, id, callback) {
var command = ['wpa_cli -i',
interface,
'remove_network',
id ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function select_network(interface, id, callback) {
var command = ['wpa_cli -i',
interface,
'select_network',
id ].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function scan(interface, callback) {
var command = ['wpa_cli -i',
interface,
'scan'].join(' ');
return this.exec(command, parse_command_interface(callback));
}
function scan_results(interface, callback) {
var command = ['wpa_cli -i',
interface,
'scan_results'].join(' ');
return this.exec(command, parse_scan_results_interface(callback));
}
function save_config(interface, callback) {
var command = ['wpa_cli -i',
interface,
'save_config'].join(' ');
return this.exec(command, parse_command_interface(callback));
}