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Merge branch 'dev' of github.com:GravitLauncher/Launcher into

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dev
This commit is contained in:
Zaxar163 2019-10-03 14:57:17 +02:00
commit e6333e057f
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19 changed files with 198 additions and 75 deletions
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9
LaunchServer/src/main/java/pro/gravit/launchserver/LaunchServer.java
View file

@ -405,6 +405,10 @@ public LaunchServer(LaunchServerDirectories directories, LaunchServerEnv env, La
Files.createDirectory(profilesDir);
syncProfilesDir();
if (config.netty != null)
nettyServerSocketHandler = new NettyServerSocketHandler(this);
else
nettyServerSocketHandler = null;
// post init modules
modulesManager.invokeEvent(new LaunchServerPostInitPhase(this));
if (config.components != null) {
@ -415,11 +419,6 @@ public LaunchServer(LaunchServerDirectories directories, LaunchServerEnv env, La
});
LogHelper.debug("PostInit components successful");
}
// start updater
if (config.netty != null)
nettyServerSocketHandler = new NettyServerSocketHandler(this);
else
nettyServerSocketHandler = null;
}
private LauncherBinary binary() {

3
LaunchServer/src/main/java/pro/gravit/launchserver/auth/protect/StdProtectHandler.java
View file

@ -4,6 +4,7 @@
import pro.gravit.utils.helper.SecurityHelper;
public class StdProtectHandler extends ProtectHandler {
public boolean checkSecure = true;
@Override
public String generateSecureToken(AuthResponse.AuthContext context) {
return SecurityHelper.randomStringToken();
@ -21,7 +22,7 @@ public boolean verifyClientSecureToken(String token, String secureKey) {
@Override
public boolean allowGetAccessToken(AuthResponse.AuthContext context) {
return (context.authType == AuthResponse.ConnectTypes.CLIENT);
return (context.authType == AuthResponse.ConnectTypes.CLIENT) && (!checkSecure || context.client.isSecure);
}
@Override

2
LaunchServer/src/main/java/pro/gravit/launchserver/binary/BuildContext.java
View file

@ -49,7 +49,7 @@ public void pushJarFile(ZipInputStream input) throws IOException {
public void pushJarFile(ZipInputStream input, Set<String> blacklist) throws IOException {
ZipEntry e = input.getNextEntry();
while (e != null) {
if (blacklist.contains(e.getName())) {
if (fileList.contains(e.getName()) || blacklist.contains(e.getName())) {
e = input.getNextEntry();
continue;
}

4
LaunchServer/src/main/java/pro/gravit/launchserver/binary/LauncherConfigurator.java
View file

@ -87,6 +87,10 @@ private void setStringField(String name, String value)
public void setGuardType(String key) {
setStringField("guardType", key);
}
public void setSecureCheck(String hash, String salt) {
setStringField("secureCheckHash", hash);
setStringField("secureCheckSalt", salt);
}
private void push(final int value) {
if (value >= -1 && value <= 5)

7
LaunchServer/src/main/java/pro/gravit/launchserver/binary/tasks/MainBuildTask.java
View file

@ -8,6 +8,8 @@
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Arrays;
import java.util.Base64;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarFile;
@ -133,6 +135,11 @@ public Path process(Path inputJar) throws IOException {
launcherConfigurator.setGuardType(server.config.launcher.guardType);
launcherConfigurator.setWarningMissArchJava(server.config.launcher.warningMissArchJava);
launcherConfigurator.setEnv(server.config.env);
String launcherSalt = SecurityHelper.randomStringToken();
byte[] launcherSecureHash = SecurityHelper.digest(SecurityHelper.DigestAlgorithm.SHA256,
server.runtime.clientCheckSecret.concat(".").concat(launcherSalt));
launcherConfigurator.setSecureCheck(Base64.getEncoder().encodeToString(launcherSecureHash), launcherSalt);
//LogHelper.debug("[checkSecure] %s: %s", launcherSalt, Arrays.toString(launcherSecureHash));
if (server.runtime.oemUnlockKey == null) server.runtime.oemUnlockKey = SecurityHelper.randomStringToken();
launcherConfigurator.setOemUnlockKey(server.runtime.oemUnlockKey);
server.buildHookManager.registerAllClientModuleClass(launcherConfigurator);

6
LaunchServer/src/main/java/pro/gravit/launchserver/command/hash/DownloadAssetCommand.java
View file

@ -30,7 +30,8 @@ public String getUsageDescription() {
@Override
public void invoke(String... args) throws Exception {
verifyArgs(args, 2);
Version version = Version.byName(args[0]);
//Version version = Version.byName(args[0]);
String versionName = args[0];
String dirName = IOHelper.verifyFileName(args[1]);
Path assetDir = server.updatesDir.resolve(dirName);
@ -40,7 +41,8 @@ public void invoke(String... args) throws Exception {
// Download required asset
LogHelper.subInfo("Downloading asset, it may take some time");
HttpDownloader.downloadZip(server.mirrorManager.getDefaultMirror().getAssetsURL(version.name), assetDir);
//HttpDownloader.downloadZip(server.mirrorManager.getDefaultMirror().getAssetsURL(version.name), assetDir);
server.mirrorManager.downloadZip(assetDir,"assets/%s.zip", versionName);
// Finished
server.syncUpdatesDir(Collections.singleton(dirName));

13
LaunchServer/src/main/java/pro/gravit/launchserver/command/hash/DownloadClientCommand.java
View file

@ -7,6 +7,7 @@
import java.nio.file.Path;
import java.util.Collections;
import com.google.gson.JsonElement;
import pro.gravit.launcher.Launcher;
import pro.gravit.launcher.profiles.ClientProfile;
import pro.gravit.launcher.profiles.ClientProfile.Version;
@ -36,7 +37,8 @@ public String getUsageDescription() {
@Override
public void invoke(String... args) throws IOException, CommandException {
verifyArgs(args, 2);
Version version = Version.byName(args[0]);
//Version version = Version.byName(args[0]);
String versionName = args[0];
String dirName = IOHelper.verifyFileName(args[1]);
Path clientDir = server.updatesDir.resolve(args[1]);
@ -46,14 +48,19 @@ public void invoke(String... args) throws IOException, CommandException {
// Download required client
LogHelper.subInfo("Downloading client, it may take some time");
HttpDownloader.downloadZip(server.mirrorManager.getDefaultMirror().getClientsURL(version.name), clientDir);
//HttpDownloader.downloadZip(server.mirrorManager.getDefaultMirror().getClientsURL(version.name), clientDir);
server.mirrorManager.downloadZip(clientDir,"clients/%s.zip", versionName);
// Create profile file
LogHelper.subInfo("Creaing profile file: '%s'", dirName);
ClientProfile client;
String profilePath = String.format("pro/gravit/launchserver/defaults/profile%s.cfg", version.name);
String profilePath = String.format("pro/gravit/launchserver/defaults/profile%s.cfg", versionName);
try (BufferedReader reader = IOHelper.newReader(IOHelper.getResourceURL(profilePath))) {
client = Launcher.gsonManager.configGson.fromJson(reader, ClientProfile.class);
} catch (IOException e)
{
JsonElement clientJson = server.mirrorManager.jsonRequest(null, "GET", "clients/%s.json", versionName);
client = Launcher.gsonManager.configGson.fromJson(clientJson, ClientProfile.class);
}
client.setTitle(dirName);
client.setDir(dirName);

3
LaunchServer/src/main/java/pro/gravit/launchserver/config/LaunchServerRuntimeConfig.java
View file

@ -7,13 +7,16 @@ public class LaunchServerRuntimeConfig {
public String clientToken;
public String oemUnlockKey;
public String registerApiKey;
public String clientCheckSecret;
public void verify() {
if (clientToken == null) LogHelper.error("[RuntimeConfig] clientToken must not be null");
if (clientCheckSecret == null) { LogHelper.warning("[RuntimeConfig] clientCheckSecret must not be null"); clientCheckSecret = SecurityHelper.randomStringToken(); }
}
public void reset() {
clientToken = SecurityHelper.randomStringToken();
registerApiKey = SecurityHelper.randomStringToken();
clientCheckSecret = SecurityHelper.randomStringToken();
}
}

91
LaunchServer/src/main/java/pro/gravit/launchserver/manangers/MirrorManager.java
View file

@ -1,33 +1,36 @@
package pro.gravit.launchserver.manangers;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import com.google.gson.JsonElement;
import pro.gravit.utils.HTTPRequest;
import pro.gravit.utils.HttpDownloader;
import pro.gravit.utils.helper.IOHelper;
import pro.gravit.utils.helper.LogHelper;
public class MirrorManager {
public class Mirror {
URL url;
String assetsURLMask;
String clientsURLMask;
public static class Mirror {
String baseUrl;
boolean enabled;
Mirror(String url) {
assetsURLMask = url.concat("assets/%s.zip");
clientsURLMask = url.concat("clients/%s.zip");
//assetsURLMask = url.concat("assets/%s.zip");
//clientsURLMask = url.concat("clients/%s.zip");
baseUrl = url;
}
private URL formatArg(String mask, String arg) throws MalformedURLException {
return new URL(String.format(mask, IOHelper.urlEncode(arg)));
private URL formatArgs(String mask, Object... args) throws MalformedURLException {
Object[] data = Arrays.stream(args).map(e -> IOHelper.urlEncode(e.toString())).toArray();
return new URL(baseUrl.concat(String.format(mask, data)));
}
public URL getAssetsURL(String assets) throws MalformedURLException {
return formatArg(assetsURLMask, assets);
}
public URL getClientsURL(String client) throws MalformedURLException {
return formatArg(clientsURLMask, client);
public URL getURL(String mask, Object... args) throws MalformedURLException {
return formatArgs(mask, args);
}
}
@ -38,13 +41,14 @@ public void addMirror(String mirror) {
Mirror m = new Mirror(mirror);
m.enabled = true;
if (defaultMirror == null) defaultMirror = m;
list.add(m);
}
public void addMirror(String mirror, boolean enabled) throws MalformedURLException {
Mirror m = new Mirror(mirror);
m.url = new URL(mirror);
m.enabled = enabled;
if (defaultMirror == null && enabled) defaultMirror = m;
list.add(m);
}
public Mirror getDefaultMirror() {
@ -66,4 +70,61 @@ public void enableMirror(int index) {
public int size() {
return list.size();
}
public boolean downloadZip(Mirror mirror, Path path, String mask, Object... args) throws IOException
{
if(!mirror.enabled) return false;
URL url = mirror.getURL(mask, args);
LogHelper.debug("Try download %s", url.toString());
try {
HttpDownloader.downloadZip(url, path);
} catch (IOException e)
{
LogHelper.error("Download %s failed(%s: %s)", url.toString(), e.getClass().getName(), e.getMessage());
return false;
}
return true;
}
public void downloadZip(Path path, String mask, Object... args) throws IOException
{
if(downloadZip(defaultMirror, path, mask, args))
{
return;
}
for(Mirror mirror : list)
{
if(mirror != defaultMirror)
{
if(downloadZip(mirror, path, mask, args)) return;
}
}
throw new IOException(String.format("Error download %s. All mirrors return error", path.toString()));
}
public JsonElement jsonRequest(Mirror mirror, JsonElement request, String method, String mask, Object... args) throws IOException
{
if(!mirror.enabled) return null;
URL url = mirror.getURL(mask, args);
try {
return HTTPRequest.jsonRequest(request, method, url);
} catch (IOException e)
{
LogHelper.error("JsonRequest %s failed(%s: %s)", url.toString(), e.getClass().getName(), e.getMessage());
return null;
}
}
public JsonElement jsonRequest(JsonElement request, String method, String mask, Object... args) throws IOException
{
JsonElement result = jsonRequest(defaultMirror, request, method, mask, args);
if(result != null) return result;
for(Mirror mirror : list)
{
if(mirror != defaultMirror)
{
result = jsonRequest(mirror, request, method, mask, args);
if(result != null) return result;
}
}
throw new IOException("Error jsonRequest. All mirrors return error");
}
}

14
LaunchServer/src/main/java/pro/gravit/launchserver/socket/LauncherNettyServer.java
View file

@ -56,15 +56,15 @@ public void initChannel(SocketChannel ch) {
ChannelPipeline pipeline = ch.pipeline();
NettyConnectContext context = new NettyConnectContext();
//p.addLast(new LoggingHandler(LogLevel.INFO));
pipeline.addLast(new HttpServerCodec());
pipeline.addLast(new HttpObjectAggregator(65536));
pipeline.addLast("http-codec", new HttpServerCodec());
pipeline.addLast("http-codec-compressor",new HttpObjectAggregator(65536));
if (server.config.netty.ipForwarding)
pipeline.addLast(new NettyIpForwardHandler(context));
pipeline.addLast(new WebSocketServerCompressionHandler());
pipeline.addLast(new WebSocketServerProtocolHandler(WEBSOCKET_PATH, null, true));
pipeline.addLast("forward-http", new NettyIpForwardHandler(context));
pipeline.addLast("websock-comp", new WebSocketServerCompressionHandler());
pipeline.addLast("websock-codec", new WebSocketServerProtocolHandler(WEBSOCKET_PATH, null, true));
if (server.config.netty.fileServerEnabled)
pipeline.addLast(new FileServerHandler(server.updatesDir, true, config.showHiddenFiles));
pipeline.addLast(new WebSocketFrameHandler(context, server, service));
pipeline.addLast("fileserver", new FileServerHandler(server.updatesDir, true, config.showHiddenFiles));
pipeline.addLast("launchserver", new WebSocketFrameHandler(context, server, service));
pipelineHook.hook(context, ch);
}
});

2
LaunchServer/src/main/java/pro/gravit/launchserver/socket/WebSocketService.java
View file

@ -37,7 +37,6 @@
public class WebSocketService {
public final ChannelGroup channels;
public static ProviderMap<WebSocketServerResponse> providers = new ProviderMap<>();
public final BiHookSet<TextWebSocketFrame, ChannelHandlerContext> packetHook = new BiHookSet<>();
public static class WebSocketRequestContext
{
public WebSocketServerResponse response;
@ -65,7 +64,6 @@ public WebSocketService(ChannelGroup channels, LaunchServer server) {
private final Gson gson;
public void process(ChannelHandlerContext ctx, TextWebSocketFrame frame, Client client, String ip) {
if (packetHook.hook(frame, ctx)) return;
String request = frame.text();
WebSocketServerResponse response = gson.fromJson(request, WebSocketServerResponse.class);
process(ctx, response, client, ip);

15
LaunchServer/src/main/java/pro/gravit/launchserver/socket/response/auth/AuthResponse.java
View file

@ -71,7 +71,7 @@ public void execute(ChannelHandlerContext ctx, Client clientData) throws Excepti
AuthProviderPair pair;
if (auth_id.isEmpty()) pair = server.config.getAuthProviderPair();
else pair = server.config.getAuthProviderPair(auth_id);
AuthContext context = new AuthContext(0, login, customText, client, null, ip, authType);
AuthContext context = new AuthContext(clientData, login, customText, client, hwid, ip, authType);
AuthProvider provider = pair.provider;
server.authHookManager.preHook.hook(context, clientData);
provider.preAuth(login, password, customText, ip);
@ -130,24 +130,23 @@ public void execute(ChannelHandlerContext ctx, Client clientData) throws Excepti
}
public static class AuthContext {
public AuthContext(long session, String login, String customText, String client, String hwid, String ip, ConnectTypes authType) {
this.session = session;
public AuthContext(Client client, String login, String customText, String profileName, HWID hwid, String ip, ConnectTypes authType) {
this.client = client;
this.login = login;
this.customText = customText;
this.client = client;
this.profileName = profileName;
this.hwid = hwid;
this.ip = ip;
this.authType = authType;
}
public long session;
public String login;
@Deprecated
public int password_length; //Use AuthProvider for get password
public String client;
public String hwid;
public String profileName;
public HWID hwid;
public String customText;
public String ip;
public ConnectTypes authType;
public Client client;
}
}

17
LaunchServer/src/main/java/pro/gravit/launchserver/socket/response/update/LauncherResponse.java
View file

@ -8,6 +8,8 @@
import pro.gravit.launchserver.socket.Client;
import pro.gravit.launchserver.socket.response.SimpleResponse;
import pro.gravit.utils.Version;
import pro.gravit.utils.helper.LogHelper;
import pro.gravit.utils.helper.SecurityHelper;
public class LauncherResponse extends SimpleResponse {
public Version version;
@ -15,6 +17,9 @@ public class LauncherResponse extends SimpleResponse {
public byte[] digest;
public int launcher_type;
public String secureHash;
public String secureSalt;
@Override
public String getType() {
return "launcher";
@ -33,6 +38,7 @@ public void execute(ChannelHandlerContext ctx, Client client) {
if (hash == null) service.sendObjectAndClose(ctx, new LauncherRequestEvent(true, server.config.netty.launcherURL));
if (Arrays.equals(bytes, hash)) {
client.checkSign = true;
client.isSecure = checkSecure(secureHash, secureSalt);
sendResult(new LauncherRequestEvent(false, server.config.netty.launcherURL));
} else {
sendResultAndClose(new LauncherRequestEvent(true, server.config.netty.launcherURL));
@ -43,12 +49,21 @@ public void execute(ChannelHandlerContext ctx, Client client) {
if (hash == null) sendResultAndClose(new LauncherRequestEvent(true, server.config.netty.launcherEXEURL));
if (Arrays.equals(bytes, hash)) {
client.checkSign = true;
client.isSecure = checkSecure(secureHash, secureSalt);
sendResult(new LauncherRequestEvent(false, server.config.netty.launcherEXEURL));
} else {
sendResultAndClose(new LauncherRequestEvent(true, server.config.netty.launcherEXEURL));
}
} else sendError("Request launcher type error");
}
private boolean checkSecure(String hash, String salt)
{
if(hash == null || salt == null) return false;
byte[] normal_hash = SecurityHelper.digest(SecurityHelper.DigestAlgorithm.SHA256,
server.runtime.clientCheckSecret.concat(".").concat(salt));
byte[] launcher_hash = Base64.getDecoder().decode(hash);
//LogHelper.debug("[checkSecure] %s vs %s", Arrays.toString(normal_hash), Arrays.toString(launcher_hash));
return Arrays.equals(normal_hash, launcher_hash);
}
}

37
Launcher/src/main/java/pro/gravit/launcher/LauncherAgent.java
View file

@ -32,18 +32,33 @@ public boolean isAgentStarted() {
public static void premain(String agentArgument, Instrumentation instrumentation) {
System.out.println("Launcher Agent");
checkAgentStacktrace();
inst = instrumentation;
SafeExitJVMLegacy.class.getName();
SafeExitJVM.class.getName();
NativeJVMHalt.class.getName();
NativeJVMHalt.initFunc();
boolean bad = false;
try {
for (StackTraceElement e : new Throwable().getStackTrace())
if (Class.forName(e.getClassName()).getClassLoader() != Runtime.class.getClassLoader() && Class.forName(e.getClassName()) != LauncherAgent.class) bad = true;
} catch(Throwable e) { bad = true; }
if (bad) NativeJVMHalt.haltA(-17);
else isAgentStarted = true;
//SafeExitJVMLegacy.class.getName();
//SafeExitJVM.class.getName();
//NativeJVMHalt.class.getName();
//NativeJVMHalt.initFunc();
isAgentStarted = true;
}
public static void checkAgentStacktrace()
{
RuntimeException ex = new SecurityException("Error check agent stacktrace");
boolean isFoundNative = false;
boolean foundPreMain = false;
for(StackTraceElement e : ex.getStackTrace())
{
if(e.isNativeMethod())
{
if(!isFoundNative) isFoundNative = true;
else throw ex;
}
if(e.getMethodName().equals("premain"))
{
if(!foundPreMain) foundPreMain = true;
else throw ex;
}
}
if(!isFoundNative || !foundPreMain) throw ex;
}
public static boolean isStarted() {

14
Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java
View file

@ -595,15 +595,11 @@ public static interface ParamsAPI {
public static ParamsAPI container = new ParamsAPI() {
@Override
public ParamContainer read() throws Exception {
ParamContainer p = new ParamContainer();
ParamContainer p;
try (Socket socket = IOHelper.newSocket()) {
socket.connect(new InetSocketAddress(SOCKET_HOST, SOCKET_PORT));
try (HInput input = new HInput(socket.getInputStream())) {
p.params = new Params(input);
p.profile = Launcher.gsonManager.gson.fromJson(input.readString(0), ClientProfile.class);
p.assetHDir = new HashedDir(input);
p.clientHDir = new HashedDir(input);
ClientHookManager.paramsInputHook.hook(input);
p = new ParamContainer(input);
}
}
return p;
@ -630,11 +626,7 @@ public void write(ParamContainer p) throws Exception {
return;
}
try (HOutput output = new HOutput(client.getOutputStream())) {
p.params.write(output);
output.writeString(Launcher.gsonManager.gson.toJson(p.profile), 0);
p.assetHDir.write(output);
p.clientHDir.write(output);
ClientHookManager.paramsOutputHook.hook(output);
p.write(output);
}
clientStarted = true;
}

2
LauncherAPI/src/main/java/pro/gravit/launcher/AutogenConfig.java
View file

@ -10,6 +10,8 @@ public class AutogenConfig {
public String guardLicenseName;
public String guardLicenseKey;
public String guardLicenseEncryptKey;
public String secureCheckHash;
public String secureCheckSalt;
public int env;
public boolean isWarningMissArchJava;
// 0 - Dev (дебаг включен по умолчанию, все сообщения)

9
LauncherAPI/src/main/java/pro/gravit/launcher/LauncherConfig.java
View file

@ -43,10 +43,15 @@ public static AutogenConfig getAutogenConfig() {
public final String guardLicenseKey;
public final String guardLicenseEncryptKey;
public final String guardType;
public final String secureCheckHash;
public final String secureCheckSalt;
@LauncherAPI
public LauncherConfig(HInput input) throws IOException, InvalidKeySpecException {
publicKey = SecurityHelper.toPublicRSAKey(input.readByteArray(SecurityHelper.CRYPTO_MAX_LENGTH));
secureCheckHash = config.secureCheckHash;
secureCheckSalt = config.secureCheckSalt;
projectname = config.projectname;
clientPort = config.clientPort;
secretKeyClient = config.secretKeyClient;
@ -92,6 +97,8 @@ public LauncherConfig(String address, RSAPublicKey publicKey, Map<String, byte[]
isWarningMissArchJava = true;
isNettyEnabled = false;
environment = LauncherEnvironment.STD;
secureCheckSalt = null;
secureCheckHash = null;
}
@LauncherAPI
@ -108,6 +115,8 @@ public LauncherConfig(String address, RSAPublicKey publicKey, Map<String, byte[]
isWarningMissArchJava = true;
isNettyEnabled = false;
environment = LauncherEnvironment.STD;
secureCheckSalt = null;
secureCheckHash = null;
}
@Override

6
LauncherAPI/src/main/java/pro/gravit/launcher/request/update/LauncherRequest.java
View file

@ -24,6 +24,10 @@ public final class LauncherRequest extends Request<LauncherRequestEvent> impleme
@LauncherNetworkAPI
public byte[] digest;
@LauncherNetworkAPI
public String secureHash;
@LauncherNetworkAPI
public String secureSalt;
@LauncherNetworkAPI
public int launcher_type = EXE_BINARY ? 2 : 1;
@LauncherAPI
public static final Path BINARY_PATH = IOHelper.getCodeSource(Launcher.class);
@ -89,6 +93,8 @@ public LauncherRequest() {
} catch (IOException e) {
LogHelper.error(e);
}
secureHash = Launcher.getConfig().secureCheckHash;
secureSalt = Launcher.getConfig().secureCheckSalt;
}
@Override

19
LauncherCore/src/main/java/pro/gravit/utils/HTTPRequest.java
View file

@ -39,19 +39,22 @@ public static int sendCrashreport(String strurl, String data) throws IOException
}
public static JsonElement jsonRequest(JsonElement request, URL url) throws IOException {
return jsonRequest(request, "POST", url);
}
public static JsonElement jsonRequest(JsonElement request, String method, URL url) throws IOException {
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
if(request != null) connection.setDoOutput(true);
connection.setRequestMethod(method);
if(request != null) connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
connection.setRequestProperty("Accept", "application/json");
if (TIMEOUT > 0)
connection.setConnectTimeout(TIMEOUT);
OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(), Charset.forName("UTF-8"));
writer.write(request.toString());
writer.flush();
writer.close();
if(request != null) try (OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(), StandardCharsets.UTF_8)) {
writer.write(request.toString());
writer.flush();
}
InputStreamReader reader;
int statusCode = connection.getResponseCode();