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package com.github.stom79.mytransl.client;
/* Copyright 2017 Thomas Schneider
*
* This file is a part of MyTransL
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* MyTransL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with MyTransL; if not,
* see <http://www.gnu.org/licenses>. */
import android.os.Build;
import com.github.stom79.mytransl.BuildConfig;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import javax.net.ssl.HttpsURLConnection;
/**
* Created by @stom79 on 27/11/2017.
* Manages GET and POST calls
* Changed 10/01/2021
*/
public class Client {
private static final String USER_AGENT = "MyTransL/" + BuildConfig.VERSION_NAME + " Android/" + Build.VERSION.RELEASE;
public Client() {
}
/***
* Get call to the translator API
* @param urlConnection - String url to query
* @param timeout - int a timeout
* @return response - String
* @throws IOException - Exception
* @throws NoSuchAlgorithmException - Exception
* @throws KeyManagementException - Exception
* @throws HttpsConnectionException - Exception
*/
@SuppressWarnings({"SameParameterValue"})
public String get(String urlConnection, int timeout) throws IOException, NoSuchAlgorithmException, KeyManagementException, HttpsConnectionException {
URL url = new URL(urlConnection);
HttpsURLConnection httpsURLConnection = (HttpsURLConnection) url.openConnection();
httpsURLConnection.setConnectTimeout(timeout * 1000);
httpsURLConnection.setRequestProperty("http.keepAlive", "false");
httpsURLConnection.setRequestProperty("User-Agent", USER_AGENT);
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP)
httpsURLConnection.setSSLSocketFactory(new TLSSocketFactory());
httpsURLConnection.setRequestMethod("GET");
//Read the reply
if (httpsURLConnection.getResponseCode() >= 200 && httpsURLConnection.getResponseCode() < 400) {
Reader in;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getInputStream(), StandardCharsets.UTF_8));
} else {
//noinspection CharsetObjectCanBeUsed
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getInputStream(), "UTF-8"));
}
StringBuilder sb = new StringBuilder();
for (int c; (c = in.read()) >= 0; )
sb.append((char) c);
httpsURLConnection.disconnect();
in.close();
return sb.toString();
} else {
Reader in;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getErrorStream(), StandardCharsets.UTF_8));
} else {
//noinspection CharsetObjectCanBeUsed
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getErrorStream(), "UTF-8"));
}
StringBuilder sb = new StringBuilder();// TODO Auto-generated catch block
for (int c; (c = in.read()) >= 0; )
sb.append((char) c);
httpsURLConnection.disconnect();
throw new HttpsConnectionException(httpsURLConnection.getResponseCode(), sb.toString());
}
}
/***
* POST call to the translator API
* @param urlConnection - String url to query
* @param timeout - int a timeout
* @param jsonObject - parameters to send (JSON)
* @return response - String
* @throws IOException - Exception
* @throws NoSuchAlgorithmException - Exception
* @throws KeyManagementException - Exception
* @throws HttpsConnectionException - Exception
*/
@SuppressWarnings({"SameParameterValue", "unused", "RedundantSuppression"})
public String post(String urlConnection, int timeout, JSONObject jsonObject) throws IOException, NoSuchAlgorithmException, KeyManagementException, HttpsConnectionException {
URL url = new URL(urlConnection);
HttpsURLConnection httpsURLConnection = (HttpsURLConnection) url.openConnection();
byte[] postDataBytes;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
postDataBytes = jsonObject.toString().getBytes(StandardCharsets.UTF_8);
} else {
//noinspection CharsetObjectCanBeUsed
postDataBytes = jsonObject.toString().getBytes("utf-8");
}
httpsURLConnection.setRequestProperty("User-Agent", USER_AGENT);
httpsURLConnection.setConnectTimeout(timeout * 1000);
httpsURLConnection.setDoInput(true);
httpsURLConnection.setDoOutput(true);
httpsURLConnection.setUseCaches(false);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
httpsURLConnection.setSSLSocketFactory(new TLSSocketFactory());
httpsURLConnection.setRequestMethod("POST");
httpsURLConnection.setRequestProperty("Content-Type", "application/json");
httpsURLConnection.setRequestProperty("Accept", "application/json");
httpsURLConnection.setRequestProperty("Content-Length", String.valueOf(postDataBytes.length));
// Send POST output
DataOutputStream printout = new DataOutputStream(httpsURLConnection.getOutputStream());
httpsURLConnection.getOutputStream().write(postDataBytes);
printout.flush();
printout.close();
//Read the reply
if (httpsURLConnection.getResponseCode() >= 200 && httpsURLConnection.getResponseCode() < 400) {
Reader in;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getInputStream(), StandardCharsets.UTF_8));
} else {
//noinspection CharsetObjectCanBeUsed
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getInputStream(), "UTF-8"));
}
StringBuilder sb = new StringBuilder();
for (int c; (c = in.read()) >= 0; )
sb.append((char) c);
httpsURLConnection.disconnect();
in.close();
return sb.toString();
} else {
Reader in;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getErrorStream(), StandardCharsets.UTF_8));
} else {
//noinspection CharsetObjectCanBeUsed
in = new BufferedReader(new InputStreamReader(httpsURLConnection.getErrorStream(), "UTF-8"));
}
StringBuilder sb = new StringBuilder();
for (int c; (c = in.read()) >= 0; )
sb.append((char) c);
httpsURLConnection.disconnect();
throw new HttpsConnectionException(httpsURLConnection.getResponseCode(), sb.toString());
}
}
}
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