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import lodash from "lodash";
import { parse } from "flags/mod.ts";
import { dirname, fromFileUrl, SEP } from "path/mod.ts";
import { networkInterfaces } from "node:os";
const REFERER = "https://w.seu.edu.cn/";
const EPORTAL_API = "https://w.seu.edu.cn:802/eportal";
const headers = {
"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/117.0",
};
const PROG_PATH = Deno.args.includes("--is_compiled_binary")
? Deno.execPath()
: fromFileUrl(Deno.mainModule);
const CONFIG_FILE = `${dirname(PROG_PATH)}${SEP}credentials.json`;
(async () => {
const flags = parse(Deno.args, {
boolean: ["login", "logout"],
string: ["config"],
default: { login: true, config: CONFIG_FILE }
});
try {
const credentials = JSON.parse(await Deno.readTextFile(flags.config));
if (lodash.isEmpty(credentials.username) || lodash.isEmpty(credentials.password)) {
throw "Invalid credentials! ";
}
const { ipv4, ipv6, mac } = getNetIfInfo();
if (flags.logout) {
const LOGOUT_URL = `${EPORTAL_API}/?c=Portal&a=unbind_mac&callback=dr1004&user_account=&wlan_user_mac=${mac.replaceAll(":", "").toUpperCase()}&wlan_user_ip=${ipv4}&jsVersion=3.3.3`;
await logout(LOGOUT_URL);
} else {
const LOGIN_URL = `${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`;
await login(LOGIN_URL);
};
} catch (err) {
if (err instanceof SyntaxError) {
exitWithError("Parse json failed!");
} else if (err instanceof Deno.errors.NotFound) {
exitWithError(`${CONFIG_FILE} not found!`)
}
else {
console.error(`[ERROR]: ${err.toString()}`);
exitWithError('');
}
}
})();
function exitWithError(errstr) {
if (!lodash.isEmpty(errstr)) { console.error(errstr) };
Deno.exit(1);
}
function getNetIfInfo() {
let ipv4, ipv6, mac;
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;
}
}
mac = alias.mac;
}
return { ipv4, ipv6, mac };
}
async function login(LOGIN_URL) {
const resp = await fetch(LOGIN_URL, {
"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 == 1 || parsedData.ret_code == 2)) {
console.log("Already logged in!")
} else {
throw `Login failed.${lodash.isEmpty(parsedData.msg) ? '' : `\nServer responds message: ${parsedData.msg}`}`;
}
}
}
async function logout(LOGOUT_URL) {
const resp = await fetch(LOGOUT_URL, {
"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("Logout success!");
} else {
throw `Logout failed.${lodash.isEmpty(parsedData.msg) ? '' : `\nServer responds message: ${parsedData.msg}`}`;
}
}
}
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