package eftr2.dataservice2;
import android.util.Log;
import com.google.gson.Gson;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;
import org.apache.http.Header;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.*;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.Map;
public abstract class BaseHttpClient {
private static final String TAG = "eftr2.dataservice2.BaseHttpClient";
final static String JsonMIMEType = "application/json";
final static String USER_AGENT = "EFTRM";
private final static String ENCODING = "UTF-8";
private final IUserIdenityService identityService;
private final AsyncHttpClient client;
protected final Gson gson = new Gson();
private final String baseUri;
public BaseHttpClient(String baseUri, IUserIdenityService identityService){
this.baseUri = baseUri;
this.identityService = identityService;
String login = this.identityService.getLogin();
String password = this.identityService.getPassword();
this.client = AsyncHttpClientFactory.getAsyncHttpClient(login, password);
}
/**
* @param path - ресурс на бекенде
* @param params - параметры GET запроса
* @param onResponce - callback для функции
* @throws UnsupportedEncodingException
*/
protected void GetAsync(String path, Map<String, String> params, final ResponseHandler<BaseResponse> onResponce) {
// валидация входных параметров
if (path == null || path.length() == 0)
throw new InvalidParameterException("Invalid pathAndQuery parameter");
if (params == null) params = new HashMap<String, String>();
// отправляем запрос
client.get(
null, // android specific
baseUri + path, // endpoint
new RequestParams(params),
getResponseHandler(onResponce));
}
/**
* @param path - ресурс на бекенде
* @param model - модель объекта
* @param onResponse - callback для функции
* @throws UnsupportedEncodingException
*/
protected void PostAsync(String path, Object model, final ResponseHandler<BaseResponse> onResponse)
{
// валидация входных параметров
if (path == null || path.length() == 0)
throw new InvalidParameterException("Invalid pathAndQuery parameter");
if(model==null) model = new Object();
try
{
Log.d(TAG, "url = " + baseUri + path);
client.post(
null,
baseUri + path, // endpoint
new StringEntity(gson.toJson(model), ENCODING), // Body
JsonMIMEType,
getResponseHandler(onResponse));
}
catch(final Exception e){
if(onResponse!=null){
onResponse.OnDone(new BaseResponse(true, "599", e.getMessage(), null));
}
}
}
private AsyncHttpResponseHandler getResponseHandler(final ResponseHandler<BaseResponse> onResponce) {
return new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
Log.i(TAG, "");
final boolean isFailed = statusCode > 300;
onResponce.OnDone(
new BaseResponse(
isFailed,
isFailed ? String.valueOf(statusCode) : null,
null,
responseBody
)
);
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
Log.e(TAG, "");
final boolean isFailed = statusCode > 300;
onResponce.OnDone(
new BaseResponse(
isFailed,
String.valueOf(statusCode),
isFailed ? error.getMessage() : null,
responseBody
)
);
}
};
}
}
class AsyncHttpClientFactory
{
public static AsyncHttpClient getAsyncHttpClient(String login, String password){
AsyncHttpClient client = new AsyncHttpClient();
KeyStore trustStore = null;
try {
trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);
final MySSLSocketFactory sf = new MySSLSocketFactory(trustStore);
sf.setHostnameVerifier(MySSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
client.setSSLSocketFactory(sf);
} catch (Exception e) {
throw new RuntimeException("Can't initiate client");
}
client.addHeader("Accept", BaseHttpClient.JsonMIMEType);
client.setBasicAuth(login, password);
//этот метод НЕ работает с упреждающей посылкой basic auth хедера, он сначала пытается всё сделать без посыла авторизации, ожидая что его пошлют на авторизационный урл, и после этого он пошлёт авторизацию...
//подробнее http://stackoverflow.com/questions/15110497/asynchttpclient-authentication-failed
//так что тупо запихаем хедер руками
//client.addHeader("Authorization", "Basic " + Base64.encodeToString((login+":"+password).getBytes(), Base64.NO_WRAP));
//client.setEnableRedirects(true);
client.setUserAgent(BaseHttpClient.USER_AGENT);
return client;
}
}
class MySSLSocketFactory extends SSLSocketFactory {
SSLContext sslContext = SSLContext.getInstance("TLS");
public MySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
super(truststore);
TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
sslContext.init(null, new TrustManager[] { tm }, null);
}
@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
}
@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
}
