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fix: Improve port scan performance #4

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fix: Improve port scan performance #4

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48 changes: 28 additions & 20 deletions port_scanner/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -270,7 +270,8 @@ <h3 class="desc" id="likely_online" hidden>Hosts likely online in the network: <

async function scan_host() {
var host = test_address.value;
var ports = [ 80 ]
var ports = [ 80 ];
var counter = 0;

if ( ports_range.value == "nmap" ) {
ports = NMAP_TOP_1000;
Expand All @@ -288,30 +289,37 @@ <h3 class="desc" id="likely_online" hidden>Hosts likely online in the network: <
refresh_to_cancel.hidden = false;
address_scan_button.hidden = true;

for (let i = 0; i < ports.length; i++) {
let _temp_port = new Port( host, ports[ i ], PROTOCOL )
let _latency = await scan_port_object( _temp_port );
// Create an array with Promises for each port
const promises = ports.map(async port => {
let _temp_port = new Port(host, port, PROTOCOL)
let _latency = await scan_port_object(_temp_port);

_currently.innerText = `${i}/${ports.length}`;
counter++;
_currently.innerText = `${counter}/${ports.length}`;

// Unsafe port
if ( _latency <= 2 ) {
_temp_port.state = 2
continue;
if (_latency <= 2) {
_temp_port.state = 2;
return _temp_port;
}

// Port Open
if (( CLOSED_LATENCY / _latency ) > 1.3) {
_temp_port.state = 1
create_card( host, ports[ i ], i )

//console.log( "" + ports[ i ] + " is likely open .." )
continue;
if ((CLOSED_LATENCY / _latency) > 1.3) {
_temp_port.state = 1;
return _temp_port;
}

// Port is closed.
_temp_port.state = 0
}
_temp_port.state = 0;
return _temp_port;
});

// Use Promise.all to scan the ports simultaneously
const results = await Promise.all(promises);

// Filter out unsafe or closed ports and process the open ones
const validPorts = results.filter(port => port.state == 1);
validPorts.forEach(port => create_card(host, port));

currently.hidden = true;
_currently.hidden = true;
Expand Down Expand Up @@ -351,14 +359,14 @@ <h3 class="desc" id="likely_online" hidden>Hosts likely online in the network: <
//
// Create Port cards
//
function create_card( address, port, state ) {
function create_card( address, port ) {
var _link = document.createElement( "a" )
_link.target = "_blank"
_link.href = `http://${ address }:${ port }/`
_link.innerText = `http://${ address }:${ port }/`
_link.href = `http://${ address }:${ port.port }/`
_link.innerText = `http://${ address }:${ port.port }/`

var _description = document.createElement( "p" )
_description.innerText = `Port ${ port } is possibly open: `
_description.innerText = `Port ${ port.port } is possibly open: `
_description.appendChild( _link )

ports.appendChild( document.createElement( "p" ) )
Expand Down