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import lodash from "lodash";
import { networkInterfaces } from "node:os";
const REFERER = "https://w.seu.edu.cn/";
const EPORTAL_API = "https://w.seu.edu.cn:802/eportal";
(async () => {
try {
const credentials = JSON.parse(await Deno.readTextFile("./credentials.json"));
if (lodash.isEmpty(credentials.username) || lodash.isEmpty(credentials.password)) {
throw "Invalid credentials! ";
}
const { ipv4, ipv6 } = getIP();
let headers = {
"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/117.0",
};
const resp = await fetch(`${EPORTAL_API}/?c=Portal&a=login&callback=dr1004&login_method=1&user_account=%2C0%2C${credentials.username}&user_password=${credentials.password}&wlan_user_ip=${lodash.isEmpty(ipv4) ? '' : ipv4}&wlan_user_ipv6=${lodash.isEmpty(ipv6) ? '' : ipv6}&wlan_user_mac=000000000000&wlan_ac_ip=&wlan_ac_name=&jsVersion=3.3.3`, {
"credentials": "include",
headers,
"referrer": REFERER,
"mode": "cors"
});
if (resp.ok) {
const resp_text = await resp.text();
const re = /dr1004\((.*?)\)/g;
const match = re.exec(resp_text);
if (lodash.isEmpty(match) || match.length <= 1) {
throw "No match in response!";
}
const parsedData = JSON.parse(match[1]);
if (parsedData.result == 1) {
console.log("Login success!");
} else if (parsedData.result == 0 && parsedData.ret_code == 2) {
console.log("Already logged in!")
} else {
throw `Login failed.\nresponse JSON: ${match[1]}`;
}
}
} catch (err) {
console.log(err);
if (err instanceof SyntaxError) {
exitWithError("Parse json failed!");
} else if (err instanceof Deno.errors.NotFound) {
exitWithError("./credentials.json not found!")
}
else {
exitWithError('');
}
}
})();
function exitWithError(errstr) {
console.error(errstr);
Deno.exit(1);
}
function getIP() {
let ipv4, ipv6;
const netIf = networkInterfaces();
const wlanIf = netIf.wlan0 || netIf.WLAN;
if (lodash.isEmpty(wlanIf)) {
exitWithError("No valid wireless network interface Found!");
}
for (let i = 0; i < wlanIf.length; i++) {
var alias = wlanIf[i];
if (alias.family === 'IPv4' && !alias.internal) {
const re = /^169.254.*/g;
if (lodash.isEmpty(alias.address.match(re))) {
ipv4 = alias.address;
}
} else if (alias.family === 'IPv6' && !alias.internal) {
const re = /^fe80::*/g;
if (lodash.isEmpty(alias.address.match(re))) {
ipv6 = alias.address;
}
}
}
return { ipv4, ipv6 };
}
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