Source code template for External Web Portal (Controller 3.1.4 or above)
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This document outlines the requirements when establishing an external web portal server. In Omada Controller, External Web Portal can only be used when the portal authentication type is External Radius Server.
The below picture depicts the workflow among the wireless client, EAP, Omada Controller, External Web Portal and the Radius Server. It will help you better understand the requirements of establishing an External Web Portal server. (Note: The portal API of Omada Controller has changed in Omada Controller 3.1.4, if you have upgraded the Omada Controller 3.1.4 from older version Omada Controller, you may need to update your External Web Portal.)
- Wireless client is connected to the SSID of the wireless network and try to access the internet. EAP device intercepts client’s HTTP request and then redirects it to the Omada Controller. (Step 1 and Step 2)
- The Omada Controller then redirects the client’s request to the external portal page by replying a HTTP response with status code 302 Found to the client. (Step 3 and Step 4)
- Client sends HTTP GET request to external web portal with parameter “?target=target_controller_ip&targetPort=target_controller_port&clientMac=client_mac&clientIp=client_ip&raidusServerIp=radius_server_ip&ap=ap_mac&ssid=ssid&radioId=radio_id(0 for 2.4G radio, 1 for 5G radio)&redirectUrl=redirecturl(if you did not set the redirect URL after wireless clients passing the portal authentication, the default redirect URL depends on the wireless clients) ”. for example, “http://172.30.30.113?target=172.30.30.113&targetPort=8088&clientMac=F8-1E-DF-AA-AA-AA&clientIP=172.30.30.103&raidusServerIp=172.30.30.120&ap=AC-84-C6-BB-BB-BB&ssid=eap_test&radioId=1&redirectUrl=https%3A%2F%2F www.tp-link.com (Step 5)
- External web portal server should be able to get the value of the clientMac, clientIp, ap, ssid, radioId, redirectUrlparameters. Then external web portal server should return a page with a form. This form will collect the information of username, password, clientMac, clientIp, ap, ssid, radioId, redirectUrl
For example:
<form id="form">
<div><span>username:</span><input type="text" id="username" name="username"/> </div>
<div><span>password:</span><input type="password" id="password" name="password"/></div>
<div style="display:none"><input type="text" id="clientMac" name="clientMac" /></div>
<div style="display:none"><input name="clientIp" id="clientIp"/></div>
<div style="display:none"><input name="ap" id="ap"/></div>
<div style="display:none"><input name="ssid" id="ssid"/></div>
<div style="display:none"><input name="radioId" id="radioId"/></div>
<div style="display:none"><input name="redirectUrl" id="redirectUrl"/></div>
<button type="submit">submit</button>
</form>
Please note that the “id” of these elements in your form should be the same as this example. The method to get the value of “username” and “password” can be defined by yourself, but the value of “clientMac”, “clientIp”, “ap”, “ssid”, “radioId”, “redirectUrl” must be obtained from the Http Request’s URL.
(Step 6)
5. The form should be POST to http://target_controller_ip:targetport/portal/radius/auth after submit. (Step7)
6. Omada Controller communicates with radius server to verify the username and password. (Step 8 and Step 9)
7. If the authentication is passed, i.e., Access-Accept is received from radius server, Omada Controller will redirect a built-in success page or a predefined webpage according to the configuration to clients. (Step 10)
The below html template is a simple demo for you to develop your External Web Portal working with Omada Controller:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<div id="errorHint" style="color:red"></div>
<form id="form">
<div><span>username:</span><input type="text" id="username" name="username"/> </div>
<div><span>password:</span><input type="password" id="password" name="password"/></div>
<div style="display:none"><input type="text" id="clientMac" name="clientMac" /></div>
<div style="display:none"><input name="clientIp" id="clientIp"/></div>
<div style="display:none"><input name="ap" id="ap"/></div>
<div style="display:none"><input name="ssid" id="ssid"/></div>
<div style="display:none"><input name="radioId" id="radioId"/></div>
<div style="display:none"><input name="redirectUrl" id="redirectUrl"/></div>
<button type="submit">submit</button>
</form>
<script type="text/javascript">
var errorHint = getQueryString("errorHint")
if (errorHint != null){
document.getElementById("errorHint").innerHTML = errorHint.replace(new RegExp('\\+', 'g'), ' ');
}
var submitUrl = "http://" + getQueryString("target") + ":" + getQueryString("targetPort") + "/portal/radius/auth";
document.getElementById("form").action = submitUrl;
document.getElementById("clientMac").value = getQueryString("clientMac");
document.getElementById("clientIp").value = getQueryString("clientIp");
document.getElementById("ap").value = getQueryString("ap");
document.getElementById("ssid").value = getQueryString("ssid");
document.getElementById("radioId").value = getQueryString("radioId");
document.getElementById("redirectUrl").value = getQueryString("redirectUrl");
function getQueryString(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]); return null;
}
</script>
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