svarzee.gps.gpsoauth.Gpsoauth Maven / Gradle / Ivy
package svarzee.gps.gpsoauth;
import java.io.IOException;
import java.lang.reflect.Field;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509TrustManager;
import net.iharder.Base64;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import svarzee.gps.gpsoauth.config.GpsoauthConfig;
import svarzee.gps.gpsoauth.config.GpsoauthConfigFactory;
import svarzee.gps.gpsoauth.config.GpsoauthConfigFileFactory;
import xxx.sun.security.ssl.SSLSocketFactoryImpl;
import static java.lang.Long.parseLong;
import static net.iharder.Base64.URL_SAFE;
public class Gpsoauth {
private final Util util;
private final CipherUtil cipherUtil;
private final GpsoauthConfig config;
private final OkHttpClient httpClient;
private static X509TrustManager trustManager(SSLSocketFactory sslSocketFactory) {
try {
Class sslContextClass = Class.forName("xxx.sun.security.ssl.SSLContextImpl");
Object context = readFieldOrNull(sslSocketFactory, sslContextClass, "context");
if (context == null) throw new IllegalStateException("Failed to create X509TrustManager.");
X509TrustManager trustManager = readFieldOrNull(context, X509TrustManager.class, "trustManager");
if (trustManager == null) throw new IllegalStateException("Failed to create X509TrustManager.");
return trustManager;
} catch (ClassNotFoundException e) {
throw new IllegalStateException("Failed to create X509TrustManager.");
}
}
private static T readFieldOrNull(Object instance, Class fieldType, String fieldName) {
for (Class c = instance.getClass(); c != Object.class; c = c.getSuperclass()) {
try {
Field field = c.getDeclaredField(fieldName);
field.setAccessible(true);
Object value = field.get(instance);
if (value == null || !fieldType.isInstance(value)) return null;
return fieldType.cast(value);
} catch (NoSuchFieldException ignored) {
// ignore
} catch (Exception e) {
throw new AssertionError();
}
}
if (!fieldName.equals("delegate")) {
Object delegate = readFieldOrNull(instance, Object.class, "delegate");
if (delegate != null) return readFieldOrNull(delegate, fieldType, fieldName);
}
return null;
}
private static OkHttpClient createOkHttpClient() {
SSLSocketFactoryImpl sslSocketFactory;
try {
sslSocketFactory = new SSLSocketFactoryImpl();
} catch (Exception e) {
throw new IllegalStateException("Failed to create SSLSocketFactoryImpl.");
}
return new OkHttpClient
.Builder()
.sslSocketFactory(sslSocketFactory, trustManager(sslSocketFactory))
.build();
}
public Gpsoauth() {
this(createOkHttpClient());
}
public Gpsoauth(OkHttpClient httpClient) {
this(httpClient, new GpsoauthConfigFileFactory("gpsoauth.properties"));
}
public Gpsoauth(OkHttpClient httpClient, GpsoauthConfigFactory gpsoauthConfigFactory) {
this.util = new Util();
this.cipherUtil = new CipherUtil();
this.config = gpsoauthConfigFactory.load();
this.httpClient = httpClient;
}
/**
* If expiry is not received then its value defaults to -1.
*/
public AuthToken login(String username,
String password,
String androidId,
String service,
String app,
String clientSig) throws IOException, TokenRequestFailed {
String masterToken = performMasterLoginForToken(username, password, androidId);
return performOAuthForToken(username, masterToken, androidId, service, app, clientSig);
}
public Response performMasterLogin(String username, String password, String androidId) throws IOException {
return performMasterLogin(
username, password, androidId, "ac2dm", "us", "us", "en", "17"
);
}
public Response performMasterLogin(String username,
String password,
String androidId,
String service,
String deviceCountry,
String operatorCountry,
String lang,
String sdkVersion) throws IOException {
byte[] signature = cipherUtil
.createSignature(
username,
password,
config.getModulus(),
config.getExponent()
);
String b64Signature = Base64.encodeBytes(signature, URL_SAFE);
FormBody formBody = new FormBody.Builder()
.add("accountType", "HOSTED_OR_GOOGLE")
.add("Email", username)
.add("has_permission", "1")
.add("add_account", "1")
.add("EncryptedPasswd", b64Signature)
.add("service", service)
.add("source", "android")
.add("androidId", androidId)
.add("device_country", deviceCountry)
.add("operatorCountry", operatorCountry)
.add("lang", lang)
.add("sdk_version", sdkVersion)
.build();
Request request = new Request.Builder()
.url("https://android.clients.google.com/auth")
.post(formBody)
.header("User-Agent", config.getUserAgent())
.build();
return httpClient.newCall(request).execute();
}
public String performMasterLoginForToken(String username, String password, String androidId) throws IOException, TokenRequestFailed {
return performMasterLoginForToken(
username, password, androidId, "ac2dm", "us", "us", "en", "17"
);
}
public String performMasterLoginForToken(String username,
String password,
String androidId,
String service,
String deviceCountry,
String operatorCountry,
String lang,
String sdkVersion) throws IOException, TokenRequestFailed {
try (Response response = performMasterLogin(username, password, androidId, service, deviceCountry, operatorCountry, lang, sdkVersion)) {
if (response.code() != 200) throw new TokenRequestFailed();
String responseBody = response.body().string();
Try token = util.extractValue(responseBody, "Token");
if (token.isFailure()) throw new TokenRequestFailed();
else return token.get();
}
}
public Response performOAuth(String username,
String masterToken,
String androidId,
String service,
String app,
String clientSig) throws IOException {
return performOAuth(
username, masterToken, androidId, service, app, clientSig, "us", "us", "en", "17"
);
}
public Response performOAuth(String username,
String masterToken,
String androidId,
String service,
String app,
String clientSig,
String deviceCountry,
String operatorCountry,
String lang,
String sdkVersion) throws IOException {
FormBody formBody = new FormBody.Builder()
.add("accountType", "HOSTED_OR_GOOGLE")
.add("Email", username)
.add("has_permission", "1")
.add("EncryptedPasswd", masterToken)
.add("service", service)
.add("source", "android")
.add("androidId", androidId)
.add("app", app)
.add("client_sig", clientSig)
.add("device_country", deviceCountry)
.add("operatorCountry", operatorCountry)
.add("lang", lang)
.add("sdk_version", sdkVersion)
.build();
Request request = new Request.Builder()
.url("https://android.clients.google.com/auth")
.post(formBody)
.header("User-Agent", config.getUserAgent())
.build();
return httpClient.newCall(request).execute();
}
/**
* If expiry is not received then its value defaults to -1.
*/
public AuthToken performOAuthForToken(String username,
String masterToken,
String androidId,
String service,
String app,
String clientSig) throws IOException, TokenRequestFailed {
return performOAuthForToken(
username, masterToken, androidId, service, app, clientSig, "us", "us", "en", "17"
);
}
/**
* If expiry is not received then its value defaults to -1.
*/
public AuthToken performOAuthForToken(String username,
String masterToken,
String androidId,
String service,
String app,
String clientSig,
String deviceCountry,
String operatorCountry,
String lang,
String sdkVersion) throws IOException, TokenRequestFailed {
try (Response response = performOAuth(
username, masterToken, androidId, service, app, clientSig, deviceCountry, operatorCountry, lang, sdkVersion
)) {
if (response.code() != 200) throw new TokenRequestFailed();
String responseBody = response.body().string();
Try token = util.extractValue(responseBody, "Auth");
Try expiry = util.extractValue(responseBody, "Expiry");
if (token.isFailure() || expiry.isFailure()) throw new TokenRequestFailed();
return new AuthToken(token.get(), expiry.isFailure() ? -1 : parseLong(expiry.get()));
}
}
public static class TokenRequestFailed extends Exception {
}
}
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