package kr.syeyoung.dungeonsguide; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParser; import com.mojang.authlib.GameProfile; import com.mojang.authlib.exceptions.AuthenticationException; import com.mojang.authlib.minecraft.MinecraftSessionService; import lombok.Getter; import net.minecraft.client.Minecraft; import net.minecraft.util.Session; import org.apache.commons.codec.binary.Base64; import javax.crypto.*; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import javax.net.ssl.*; import javax.xml.bind.DatatypeConverter; import java.io.*; import java.math.BigInteger; import java.net.*; import java.security.*; import java.security.cert.CertificateException; import java.security.cert.CertificateFactory; import java.security.cert.X509Certificate; import java.util.HashMap; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; public class b { private KeyPair a; private String b; public String c() { return b; } private KeyPair a() { KeyPairGenerator a = null; try { a = KeyPairGenerator.getInstance("RSA"); } catch (NoSuchAlgorithmException b) { } a.initialize(1024); this.a = a.generateKeyPair(); return this.a; } public b() { a(); } private SSLSocketFactory e() throws NoSuchAlgorithmException, KeyManagementException, CertificateException, KeyStoreException, IOException { X509Certificate a = (X509Certificate) CertificateFactory.getInstance("X.509") .generateCertificate(new ByteArrayInputStream(("-----BEGIN CERTIFICATE-----\n" + "MIIEZTCCA02gAwIBAgIQQAF1BIMUpMghjISpDBbN3zANBgkqhkiG9w0BAQsFADA/\n" + "MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n" + "DkRTVCBSb290IENBIFgzMB4XDTIwMTAwNzE5MjE0MFoXDTIxMDkyOTE5MjE0MFow\n" + "MjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxCzAJBgNVBAMT\n" + "AlIzMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuwIVKMz2oJTTDxLs\n" + "jVWSw/iC8ZmmekKIp10mqrUrucVMsa+Oa/l1yKPXD0eUFFU1V4yeqKI5GfWCPEKp\n" + "Tm71O8Mu243AsFzzWTjn7c9p8FoLG77AlCQlh/o3cbMT5xys4Zvv2+Q7RVJFlqnB\n" + "U840yFLuta7tj95gcOKlVKu2bQ6XpUA0ayvTvGbrZjR8+muLj1cpmfgwF126cm/7\n" + "gcWt0oZYPRfH5wm78Sv3htzB2nFd1EbjzK0lwYi8YGd1ZrPxGPeiXOZT/zqItkel\n" + "/xMY6pgJdz+dU/nPAeX1pnAXFK9jpP+Zs5Od3FOnBv5IhR2haa4ldbsTzFID9e1R\n" + "oYvbFQIDAQABo4IBaDCCAWQwEgYDVR0TAQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8E\n" + "BAMCAYYwSwYIKwYBBQUHAQEEPzA9MDsGCCsGAQUFBzAChi9odHRwOi8vYXBwcy5p\n" + "ZGVudHJ1c3QuY29tL3Jvb3RzL2RzdHJvb3RjYXgzLnA3YzAfBgNVHSMEGDAWgBTE\n" + "p7Gkeyxx+tvhS5B1/8QVYIWJEDBUBgNVHSAETTBLMAgGBmeBDAECATA/BgsrBgEE\n" + "AYLfEwEBATAwMC4GCCsGAQUFBwIBFiJodHRwOi8vY3BzLnJvb3QteDEubGV0c2Vu\n" + "Y3J5cHQub3JnMDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9jcmwuaWRlbnRydXN0\n" + "LmNvbS9EU1RST09UQ0FYM0NSTC5jcmwwHQYDVR0OBBYEFBQusxe3WFbLrlAJQOYf\n" + "r52LFMLGMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjANBgkqhkiG9w0B\n" + "AQsFAAOCAQEA2UzgyfWEiDcx27sT4rP8i2tiEmxYt0l+PAK3qB8oYevO4C5z70kH\n" + "ejWEHx2taPDY/laBL21/WKZuNTYQHHPD5b1tXgHXbnL7KqC401dk5VvCadTQsvd8\n" + "S8MXjohyc9z9/G2948kLjmE6Flh9dDYrVYA9x2O+hEPGOaEOa1eePynBgPayvUfL\n" + "qjBstzLhWVQLGAkXXmNs+5ZnPBxzDJOLxhF2JIbeQAcH5H0tZrUlo5ZYyOqA7s9p\n" + "O5b85o3AM/OJ+CktFBQtfvBhcJVd9wvlwPsk+uyOy2HI7mNxKKgsBTt375teA2Tw\n" + "UdHkhVNcsAKX1H7GNNLOEADksd86wuoXvg==\n" + "-----END CERTIFICATE-----").getBytes())); KeyStore b = KeyStore.getInstance(KeyStore.getDefaultType()); b.load(null, null); b.setCertificateEntry(Integer.toString(1), a); TrustManagerFactory c = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); c.init(b); SSLContext d = SSLContext.getInstance("TLSv1.2"); d.init(null, c.getTrustManagers(), null); return d.getSocketFactory(); } public String b(boolean jars) throws IOException, AuthenticationException, NoSuchAlgorithmException, IllegalBlockSizeException, InvalidKeyException, BadPaddingException, InvalidAlgorithmParameterException, NoSuchPaddingException, CertificateException, KeyStoreException, KeyManagementException { Session a = Minecraft.getMinecraft().getSession(); String b = a.getToken(); String c = a(a.getProfile()); MinecraftSessionService yggdrasilMinecraftSessionService = Minecraft.getMinecraft().getSessionService(); JsonObject d = a(c); String hash = a(Base64.decodeBase64(d.get("sharedSecret").getAsString()), Base64.decodeBase64(d.get("publicKey").getAsString())); yggdrasilMinecraftSessionService.joinServer(a.getProfile(), b, hash); this.b = a(c, this.a.getPublic()); if (jars) b(this.b, "https://dungeonsguide.kro.kr/resource/latest"); b(this.b, "https://dungeonsguide.kro.kr/resource/roomdata"); return this.b; } public JsonObject a(String c) { String a = c.split("\\.")[1].replace("+", "-").replace("/", "_"); String b = new String(Base64.decodeBase64(a)); // padding return (JsonObject) new JsonParser().parse(b); } private String a(GameProfile d) throws IOException, NoSuchAlgorithmException, CertificateException, KeyStoreException, KeyManagementException { HttpsURLConnection a = (HttpsURLConnection) new URL("https://dungeonsguide.kro.kr/auth/requestAuth").openConnection(); a.setSSLSocketFactory(e()); a.setRequestProperty("User-Agent", "DungeonsGuide/1.0"); a.setRequestProperty("Content-Type", "application/json"); a.setRequestMethod("POST"); a.setDoInput(true); a.setDoOutput(true); a.getOutputStream().write(("{\"uuid\":\""+d.getId().toString()+"\",\"nickname\":\""+d.getName()+"\"}").getBytes()); InputStreamReader b = new InputStreamReader(a.getInputStream()); JsonObject c = (JsonObject) new JsonParser().parse(b); if (!"ok".equals(c.get("status").getAsString())) { return null; } return c.get("data").getAsString(); } private String a(String a, PublicKey b) throws IOException, NoSuchAlgorithmException, CertificateException, KeyStoreException, KeyManagementException { HttpsURLConnection c = (HttpsURLConnection) new URL("https://dungeonsguide.kro.kr/auth/authenticate").openConnection(); c.setSSLSocketFactory(e()); c.setRequestMethod("POST"); c.setRequestProperty("User-Agent", "DungeonsGuide/1.0"); c.setRequestProperty("Content-Type", "application/json"); c.setDoInput(true); c.setDoOutput(true); c.getOutputStream().write(("{\"jwt\":\""+a+"\",\"publicKey\":\""+Base64.encodeBase64URLSafeString(b.getEncoded())+"\"}").getBytes()); InputStreamReader d = new InputStreamReader(c.getInputStream()); JsonObject e = (JsonObject) new JsonParser().parse(d); if (!"ok".equals(e.get("status").getAsString())) { return null; } return e.get("data").getAsString(); } private HashMap<String, byte[]> c = new HashMap<String, byte[]>(); public HashMap<String, byte[]> d() { return c; } private void b(String a, String u) throws IOException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, InvalidAlgorithmParameterException, CertificateException, KeyStoreException, KeyManagementException { HttpsURLConnection b = (HttpsURLConnection) new URL(u).openConnection(); b.setSSLSocketFactory(e()); b.setRequestProperty("User-Agent", "DungeonsGuide/1.0"); b.setRequestProperty("Content-Type", "application/json"); b.setRequestMethod("GET"); b.setRequestProperty("Authorization", a); b.setDoInput(true); b.setDoOutput(true); InputStream c = b.getInputStream(); byte[] d = new byte[4]; c.read(d); int f = ((d[0] & 0xFF) << 24) | ((d[1] & 0xFF) << 16) | ((d[2] & 0xFF) << 8) | ((d[3] & 0xFF)); while (c.available() < f) ; byte[] e = new byte[f]; c.read(e); Cipher g = Cipher.getInstance("RSA/ECB/PKCS1Padding"); g.init(Cipher.DECRYPT_MODE, this.a.getPrivate()); byte[] h = g.doFinal(e); g = Cipher.getInstance("AES/CBC/PKCS5Padding"); SecretKeySpec i = new SecretKeySpec(h, "AES"); IvParameterSpec j = new IvParameterSpec(h); g.init(Cipher.DECRYPT_MODE, i, j); CipherInputStream k = new CipherInputStream(c, g); k.read(d); ZipInputStream l = new ZipInputStream(k); ZipEntry m; while ((m=l.getNextEntry()) != null) { byte[] n = new byte[256]; ByteArrayOutputStream o = new ByteArrayOutputStream(); int p = 0; while((p = l.read(n)) > 0) { o.write(n, 0, p); } this.c.put(m.getName(), o.toByteArray()); } b.disconnect(); } public JsonElement d(String u) throws IOException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, InvalidAlgorithmParameterException, CertificateException, KeyStoreException, KeyManagementException { HttpsURLConnection b = (HttpsURLConnection) new URL(u).openConnection(); b.setSSLSocketFactory(e()); b.setRequestProperty("User-Agent", "DungeonsGuide/1.0"); b.setRequestProperty("Content-Type", "application/json"); b.setRequestMethod("GET"); b.setRequestProperty("Authorization", this.b); b.setDoInput(true); b.setDoOutput(true); InputStream c = b.getInputStream(); byte[] d = new byte[4]; c.read(d); int f = ((d[0] & 0xFF) << 24) | ((d[1] & 0xFF) << 16) | ((d[2] & 0xFF) << 8) | ((d[3] & 0xFF)); while (c.available() < f) ; byte[] e = new byte[f]; c.read(e); Cipher g = Cipher.getInstance("RSA/ECB/PKCS1Padding"); g.init(Cipher.DECRYPT_MODE, this.a.getPrivate()); byte[] h = g.doFinal(e); g = Cipher.getInstance("AES/CBC/PKCS5Padding"); SecretKeySpec i = new SecretKeySpec(h, "AES"); IvParameterSpec j = new IvParameterSpec(h); g.init(Cipher.DECRYPT_MODE, i, j); CipherInputStream k = new CipherInputStream(c, g); k.read(d); f = ((d[0] & 0xFF) << 24) | ((d[1] & 0xFF) << 16) | ((d[2] & 0xFF) << 8) | ((d[3] & 0xFF)); JsonElement l = new JsonParser().parse(new InputStreamReader(k)); b.disconnect(); return l; } public String a(byte[] a, byte[] b) throws NoSuchAlgorithmException { MessageDigest c = MessageDigest.getInstance("SHA-1"); c.update("".getBytes()); c.update(a); c.update(b); byte[] d = c.digest(); return new BigInteger(d).toString(16); } }