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mirror of https://github.com/billz/raspap-webgui.git synced 2023-10-10 13:37:24 +02:00
raspap-webgui/includes/wifi_functions.php
2019-08-19 18:06:15 +02:00

99 lines
3.4 KiB
PHP

<?php
include_once('functions.php');
function knownWifiStations(&$networks)
{
// Find currently configured networks
exec(' sudo cat ' . RASPI_WPA_SUPPLICANT_CONFIG, $known_return);
foreach ($known_return as $line) {
if (preg_match('/network\s*=/', $line)) {
$network = array('visible' => false, 'configured' => true, 'connected' => false);
} elseif ($network !== null) {
if (preg_match('/^\s*}\s*$/', $line)) {
$networks[$ssid] = $network;
$network = null;
$ssid = null;
} elseif ($lineArr = preg_split('/\s*=\s*/', trim($line))) {
switch (strtolower($lineArr[0])) {
case 'ssid':
$ssid = trim($lineArr[1], '"');
break;
case 'psk':
if (array_key_exists('passphrase', $network)) {
break;
}
case '#psk':
$network['protocol'] = 'WPA';
case 'wep_key0': // Untested
$network['passphrase'] = trim($lineArr[1], '"');
break;
case 'key_mgmt':
if (! array_key_exists('passphrase', $network) && $lineArr[1] === 'NONE') {
$network['protocol'] = 'Open';
}
break;
case 'priority':
$network['priority'] = trim($lineArr[1], '"');
break;
}
}
}
}
}
function nearbyWifiStations(&$networks, $cached = true)
{
$cacheTime = filemtime(RASPI_WPA_SUPPLICANT_CONFIG);
$cacheKey = "nearby_wifi_stations_$cacheTime";
if ($cached == false) {
deleteCache($cacheKey);
}
$scan_results = cache($cacheKey, function() {
exec('sudo wpa_cli -i ' . RASPI_WIFI_CLIENT_INTERFACE . ' scan');
sleep(3);
exec('sudo wpa_cli -i ' . RASPI_WIFI_CLIENT_INTERFACE . ' scan_results', $stdout);
array_shift($stdout);
return implode("\n", $stdout);
});
foreach (explode("\n", $scan_results) as $network) {
$arrNetwork = preg_split("/[\t]+/", $network); // split result into array
// If network is saved
if (array_key_exists(4, $arrNetwork) && array_key_exists($arrNetwork[4], $networks)) {
$networks[$arrNetwork[4]]['visible'] = true;
$networks[$arrNetwork[4]]['channel'] = ConvertToChannel($arrNetwork[1]);
// TODO What if the security has changed?
} else {
$networks[$arrNetwork[4]] = array(
'configured' => false,
'protocol' => ConvertToSecurity($arrNetwork[3]),
'channel' => ConvertToChannel($arrNetwork[1]),
'passphrase' => '',
'visible' => true,
'connected' => false
);
}
// Save RSSI
if (array_key_exists(4, $arrNetwork)) {
$networks[$arrNetwork[4]]['RSSI'] = $arrNetwork[2];
}
}
}
function connectedWifiStations(&$networks)
{
exec('iwconfig ' . RASPI_WIFI_CLIENT_INTERFACE, $iwconfig_return);
foreach ($iwconfig_return as $line) {
if (preg_match('/ESSID:\"([^"]+)\"/i', $line, $iwconfig_ssid)) {
$networks[$iwconfig_ssid[1]]['connected'] = true;
}
}
}