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jkoschke
2022-08-26 12:49:14 +02:00
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tests/node_modules/wireless-tools/iwlist.js generated vendored Normal file
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/*
* 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 **iwlist** command is used to get detailed information from a
* wireless interface.
*
* @static
* @category iwlist
*
*/
var iwlist = module.exports = {
exec: child_process.exec,
scan: scan
};
/**
* Returns a truthy if the network has an ssid; falsy otherwise.
*
* @private
* @static
* @category iwlist
* @param {object} network The scanned network object.
* @returns {string} The ssid.
*
*/
function has_ssid(network) {
return network.ssid;
}
/**
* Returns a truthy if the network has any key; falsy otherwise.
*
* @private
* @static
* @category iwlist
* @param {object} network The scanned network object.
* @returns {boolean} True if any key.
*
*/
function has_keys(network) {
return Object.keys(network).length !== 0;
}
/**
* A comparison function to sort networks ordered by signal strength.
*
* @private
* @static
* @category iwlist
* @param {object} a A scanned network object.
* @param {object} b Another scanned network object.
* @returns {number} The comparison value.
*
*/
function by_signal(a, b) {
return b.signal - a.signal;
}
/**
* Parses a scanned wireless network cell.
*
* @private
* @static
* @category iwlist
* @param {string} cell The section of stdout for the cell.
* @returns {object} The scanned network object.
*
*/
function parse_cell(cell) {
var parsed = { };
var match;
if ((match = cell.match(/Address\s*[:|=]\s*([A-Fa-f0-9:]{17})/))) {
parsed.address = match[1].toLowerCase();
}
if ((match = cell.match(/Channel\s*([0-9]+)/))) {
parsed.channel = parseInt(match[1], 10);
}
if ((match = cell.match(/Frequency\s*[:|=]\s*([0-9\.]+)\s*GHz/))) {
parsed.frequency = parseFloat(match[1]);
}
if ((match = cell.match(/Mode\s*[:|=]\s*([^\s]+)/))) {
parsed.mode = match[1].toLowerCase();
}
if ((match = cell.match(/Quality\s*[:|=]\s*([0-9]+)/))) {
parsed.quality = parseInt(match[1], 10);
}
if ((match = cell.match(/Signal level\s*[:|=]\s*(-?[0-9]+)/))) {
parsed.signal = parseInt(match[1], 10);
}
if ((match = cell.match(/Noise level\s*[:|=]\s*(-?[0-9]+)/))) {
parsed.noise = parseInt(match[1], 10);
}
if ((match = cell.match(/ESSID\s*[:|=]\s*"([^"]+)"/))) {
parsed.ssid = match[1];
}
if ((match = cell.match(/WPA2\s+Version/))) {
parsed.security = 'wpa2';
}
else if ((match = cell.match(/WPA\s+Version/))) {
parsed.security = 'wpa';
}
else if ((match = cell.match(/Encryption key\s*[:|=]\s*on/))) {
parsed.security = 'wep';
}
else if ((match = cell.match(/Encryption key\s*[:|=]\s*off/))) {
parsed.security = 'open';
}
return parsed;
}
/**
* Parses all scanned wireless network cells.
*
* @private
* @static
* @category iwlist
* @param {function} callback The callback function.
*
*/
function parse_scan(show_hidden, callback) {
return function(error, stdout, stderr) {
if (error) callback(error);
else
if (show_hidden) {
callback(error, stdout
.split(/Cell [0-9]+ -/)
.map(parse_cell)
.filter(has_keys)
.sort(by_signal));
} else {
callback(error, stdout
.split(/Cell [0-9]+ -/)
.map(parse_cell)
.filter(has_ssid)
.sort(by_signal));
}
};
}
/**
* The **iwlist scan** command is used to scan for wireless networks
* visible to a wireless interface. For convenience, the networks are
* sorted by signal strength.
*
* @static
* @category iwlist
* @param {string} interface The wireless network interface.
* @param {function} callback The callback function.
* @example
*
* var iwlist = require('wireless-tools/iwlist');
*
* iwlist.scan('wlan0', function(err, networks) {
* console.log(networks);
* });
*
* iwlist.scan({ iface : 'wlan0', show_hidden: true }, function(err, networks) {
* console.log(networks);
* });
*
* // =>
* [
* {
* address: '00:0b:81:ab:14:22',
* ssid: 'BlueberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wpa',
* quality: 48,
* signal: 87
* },
* {
* address: '00:0b:81:95:12:21',
* ssid: 'RaspberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wpa2',
* quality: 58,
* signal: 83
* },
* {
* address: '00:0b:81:cd:f2:04',
* ssid: 'BlackberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wep',
* quality: 48,
* signal: 80
* },
* {
* address: '00:0b:81:fd:42:14',
* ssid: 'CranberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'open',
* quality: 32,
* signal: 71
* }
* ]
*
* [
* {
* address: '00:0b:81:ab:14:22',
* ssid: 'BlueberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wpa',
* quality: 48,
* signal: 87
* },
* {
* address: '00:0b:81:95:12:21',
* ssid: 'RaspberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wpa2',
* quality: 58,
* signal: 83
* },
* {
* address: '00:0b:81:cd:f2:04',
* ssid: 'BlackberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'wep',
* quality: 48,
* signal: 80
* },
* {
* address: '00:0b:81:fd:42:14',
* ssid: 'CranberryPi',
* mode: 'master',
* frequency: 2.437,
* channel: 6,
* security: 'open',
* quality: 32,
* signal: 71
* },
* {
* address: '2c:c5:d3:02:ae:4c',
* channel: 100,
* frequency: 5.5,
* mode: 'master',
* quality: 66,
* signal: -44,
* security: 'wpa2'
* }
* ]
*
*/
function scan(options, callback) {
var interface, show_hidden
if (typeof options === 'string') {
var interface = options;
var show_hidden = false;
} else {
var interface = options.iface;
var show_hidden = options.show_hidden || false;
}
var extra_params = '';
if (options.ssid) {
extra_params = ' essid ' + options.ssid;
}
this.exec('iwlist ' + interface + ' scan' + extra_params, parse_scan(show_hidden, callback));
}