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Page: http.modules
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Caplets Changing the Prompt Compilation on Android Compilation on Linux and macOS Compilation on Windows Cross Compilation ( ARM example ) Home Interactive Mode Known Issues Using with Docker any.proxy api.rest arp.spoof ble caplets.update dhcp6.spoof dns.spoof events.stream gps hid http.modules http.proxy http.server https.proxy https.server mac.changer mysql.server net.probe net.recon net.sniff packet.proxy syn.scan tcp.modules tcp.proxy ticker update.check wifi wol
8 http.modules
yungtravla edited this page 2018-06-30 10:49:37 +10:00
Table of Contents

The http.proxy and https.proxy modules can be scripted using javascript files that must declare at least one of the following functions:

// called when the script is loaded
function onLoad() {

}

// called when the request is received by the proxy
// and before it is sent to the real server.
function onRequest(req, res) {

}

// called when the request is sent to the real server
// and a response is received
function onResponse(req, res) {

}

// called every time an unknown session command is typed,
// proxy modules can optionally handle custom commands this way:
function onCommand(cmd) {
    if( cmd == "test" ) {
        /*
         * Custom session command logic here.
         */

        // tell the session we handled this command
        return true
    }
}

Modules can change the req request and res response objects, for instance the web-override.cap caplet is using the onRequest function in order to override every request before it is executed with a fake response:

function onRequest(req, res) {
    res.Status      = 200;
    res.ContentType = "text/html";
    res.Body        = readFile("caplets/www/index.html");
    headers         = res.Headers.split("\r\n")
    for (var i = 0; i < headers.length; i++) {
        header_name = headers[i].replace(/:.*/, "")
        res.RemoveHeader(header_name);
    }
    res.SetHeader("Connection", "close");
}

The login-man-abuse.cap caplet instead will use the onResponse handler to inject its malicious javascript file in every html response:

function onResponse(req, res) {
    if( res.ContentType.indexOf('text/html') == 0 ){
        var body = res.ReadBody();
        if( body.indexOf('</head>') != -1 ) {
            res.Body = body.replace( 
                '</head>', 
                '<script type="text/javascript">' + "\n" +
                    AbuserJavascript +
                '</script>' +
                '</head>'
            ); 
        }
    }
}

Builtin Functions

Modules can use the following builtin functions.

function description
readFile("/path/to/file") Return the contents of a file as a string.
writeFile("/path/to/file", "hello world") Write the string hello world to a file, returns null or an error message.
log_debug("message") Log a message in the interactive session (its level will be DEBUG).
log_info("message") Log a message in the interactive session (its level will be INFO).
log_warn("message") Log a message in the interactive session (its level will be WARNING).
log_error("message") Log a message in the interactive session (its level will be ERROR).
log_fatal("message") Log a message in the interactive session (its level will be FATAL).
log("message") Shortcut for log_info("message").
btoa("message") Encode a message to base64.
atob("bWVzc2FnZQ==") Decode a message from base64.
env("iface.ipv4") Read a variable.
env("foo", "bar") Set a variable.

Modules

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