raspap-webgui-mirror/includes/internetRoute.php
zbchristian 4623060f08
Simplify and cleanup handling of return values of system calls
Handling of return values done in a single line.
Determine only, if access is possible not not (true, false). The actual displayed text has to be determined, when displaying the result of the access check.
2020-06-29 13:12:29 +02:00

30 lines
1.3 KiB
PHP

<?php
$rInfo=array();
// get all default routes
exec('ip route list | sed -rn "s/default via (([0-9]{1,3}\.){3}[0-9]{1,3}).*dev (\w*).*src (([0-9]{1,3}\.){3}[0-9]{1,3}).*/\3 \4 \1/p"', $routes);
if (!empty($routes) ) {
foreach ($routes as $i => $route) {
$prop=explode(' ', $route);
$rInfo[$i]["interface"]=$prop[0];
$rInfo[$i]["ip-address"]=$prop[1];
$rInfo[$i]["gateway"]=$prop[2];
// resolve the name of the gateway (if possible)
unset($host);
exec('host '.$prop[2].' | sed -rn "s/.*domain name pointer (.*)\./\1/p" | head -n 1', $host);
$rInfo[$i]["gw-name"] = empty($host) ? "*" : $host[0];
if (isset($checkAccess) && $checkAccess) {
// check internet connectivity w/ and w/o DNS resolution
unset($okip);
exec('ping -W1 -c 1 -I '.$prop[0].' '.ACCESS_CHECK_IP.' | sed -rn "s/.*icmp_seq=1.*time=.*/OK/p"',$okip);
$rInfo[$i]["access-ip"] = empty($okip) ? false : true;
unset($okdns);
exec('ping -W1 -c 1 -I '.$prop[0].' '.ACCESS_CHECK_DNS.' | sed -rn "s/.*icmp_seq=1.*time=.*/OK/p"',$okdns);
$rInfo[$i]["access-dns"] = empty($okdns) ? false : true;
}
}
} else {
$rInfo = array("error"=>"No route to the internet found");
}
$rInfo_json = json_encode($rInfo);
?>