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Socket.IO server implemented on Java
/**
* Copyright 2012 Nikita Koksharov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.corundumstudio.socketio;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
import com.corundumstudio.socketio.handler.SuccessAuthorizationListener;
import com.corundumstudio.socketio.listener.DefaultExceptionListener;
import com.corundumstudio.socketio.listener.ExceptionListener;
import com.corundumstudio.socketio.protocol.JsonSupport;
import com.corundumstudio.socketio.store.MemoryStoreFactory;
import com.corundumstudio.socketio.store.StoreFactory;
import javax.net.ssl.KeyManagerFactory;
public class Configuration {
private ExceptionListener exceptionListener = new DefaultExceptionListener();
private String context = "/socket.io";
private List transports = Arrays.asList(Transport.WEBSOCKET, Transport.POLLING);
private int bossThreads = 0; // 0 = current_processors_amount * 2
private int workerThreads = 0; // 0 = current_processors_amount * 2
private boolean useLinuxNativeEpoll;
private boolean allowCustomRequests = false;
private int upgradeTimeout = 10000;
private int pingTimeout = 60000;
private int pingInterval = 25000;
private int firstDataTimeout = 5000;
private int maxHttpContentLength = 64 * 1024;
private int maxFramePayloadLength = 64 * 1024;
private String packagePrefix;
private String hostname;
private int port = -1;
private String sslProtocol = "TLSv1";
private String keyStoreFormat = "JKS";
private InputStream keyStore;
private String keyStorePassword;
private String trustStoreFormat = "JKS";
private InputStream trustStore;
private String trustStorePassword;
private String keyManagerFactoryAlgorithm = KeyManagerFactory.getDefaultAlgorithm();
private boolean preferDirectBuffer = true;
private SocketConfig socketConfig = new SocketConfig();
private StoreFactory storeFactory = new MemoryStoreFactory();
private JsonSupport jsonSupport;
private AuthorizationListener authorizationListener = new SuccessAuthorizationListener();
private AckMode ackMode = AckMode.AUTO_SUCCESS_ONLY;
private boolean addVersionHeader = true;
private String origin;
private boolean httpCompression = true;
private boolean websocketCompression = true;
public Configuration() {
}
/**
* Defend from further modifications by cloning
*
* @param conf - Configuration object to clone
*/
Configuration(Configuration conf) {
setBossThreads(conf.getBossThreads());
setWorkerThreads(conf.getWorkerThreads());
setUseLinuxNativeEpoll(conf.isUseLinuxNativeEpoll());
setPingInterval(conf.getPingInterval());
setPingTimeout(conf.getPingTimeout());
setHostname(conf.getHostname());
setPort(conf.getPort());
if (conf.getJsonSupport() == null) {
try {
getClass().getClassLoader().loadClass("com.fasterxml.jackson.databind.ObjectMapper");
try {
Class jjs = getClass().getClassLoader().loadClass("com.corundumstudio.socketio.protocol.JacksonJsonSupport");
JsonSupport js = (JsonSupport) jjs.getConstructor().newInstance();
conf.setJsonSupport(js);
} catch (Exception e) {
throw new IllegalArgumentException(e);
}
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Can't find jackson lib in classpath", e);
}
}
setJsonSupport(new JsonSupportWrapper(conf.getJsonSupport()));
setContext(conf.getContext());
setAllowCustomRequests(conf.isAllowCustomRequests());
setKeyStorePassword(conf.getKeyStorePassword());
setKeyStore(conf.getKeyStore());
setKeyStoreFormat(conf.getKeyStoreFormat());
setTrustStore(conf.getTrustStore());
setTrustStoreFormat(conf.getTrustStoreFormat());
setTrustStorePassword(conf.getTrustStorePassword());
setKeyManagerFactoryAlgorithm(conf.getKeyManagerFactoryAlgorithm());
setTransports(conf.getTransports().toArray(new Transport[conf.getTransports().size()]));
setMaxHttpContentLength(conf.getMaxHttpContentLength());
setPackagePrefix(conf.getPackagePrefix());
setPreferDirectBuffer(conf.isPreferDirectBuffer());
setStoreFactory(conf.getStoreFactory());
setAuthorizationListener(conf.getAuthorizationListener());
setExceptionListener(conf.getExceptionListener());
setSocketConfig(conf.getSocketConfig());
setAckMode(conf.getAckMode());
setMaxFramePayloadLength(conf.getMaxFramePayloadLength());
setUpgradeTimeout(conf.getUpgradeTimeout());
setAddVersionHeader(conf.isAddVersionHeader());
setOrigin(conf.getOrigin());
setSSLProtocol(conf.getSSLProtocol());
setHttpCompression(conf.isHttpCompression());
setWebsocketCompression(conf.isWebsocketCompression());
}
public JsonSupport getJsonSupport() {
return jsonSupport;
}
/**
* Allows to setup custom implementation of
* JSON serialization/deserialization
*
* @param jsonSupport - json mapper
*
* @see JsonSupport
*/
public void setJsonSupport(JsonSupport jsonSupport) {
this.jsonSupport = jsonSupport;
}
public String getHostname() {
return hostname;
}
/**
* Optional parameter. If not set then bind address
* will be 0.0.0.0 or ::0
*
* @param hostname - name of host
*/
public void setHostname(String hostname) {
this.hostname = hostname;
}
public int getPort() {
return port;
}
public void setPort(int port) {
this.port = port;
}
public int getBossThreads() {
return bossThreads;
}
public void setBossThreads(int bossThreads) {
this.bossThreads = bossThreads;
}
public int getWorkerThreads() {
return workerThreads;
}
public void setWorkerThreads(int workerThreads) {
this.workerThreads = workerThreads;
}
/**
* Ping interval
*
* @param heartbeatIntervalSecs - time in milliseconds
*/
public void setPingInterval(int heartbeatIntervalSecs) {
this.pingInterval = heartbeatIntervalSecs;
}
public int getPingInterval() {
return pingInterval;
}
/**
* Ping timeout
* Use 0 to disable it
*
* @param heartbeatTimeoutSecs - time in milliseconds
*/
public void setPingTimeout(int heartbeatTimeoutSecs) {
this.pingTimeout = heartbeatTimeoutSecs;
}
public int getPingTimeout() {
return pingTimeout;
}
public boolean isHeartbeatsEnabled() {
return pingTimeout > 0;
}
public String getContext() {
return context;
}
public void setContext(String context) {
this.context = context;
}
public boolean isAllowCustomRequests() {
return allowCustomRequests;
}
/**
* Allow to service custom requests differs from socket.io protocol.
* In this case it's necessary to add own handler which handle them
* to avoid hang connections.
* Default is {@code false}
*
* @param allowCustomRequests - {@code true} to allow
*/
public void setAllowCustomRequests(boolean allowCustomRequests) {
this.allowCustomRequests = allowCustomRequests;
}
/**
* SSL key store password
*
* @param keyStorePassword - password of key store
*/
public void setKeyStorePassword(String keyStorePassword) {
this.keyStorePassword = keyStorePassword;
}
public String getKeyStorePassword() {
return keyStorePassword;
}
/**
* SSL key store stream, maybe appointed to any source
*
* @param keyStore - key store input stream
*/
public void setKeyStore(InputStream keyStore) {
this.keyStore = keyStore;
}
public InputStream getKeyStore() {
return keyStore;
}
/**
* Key store format
*
* @param keyStoreFormat - key store format
*/
public void setKeyStoreFormat(String keyStoreFormat) {
this.keyStoreFormat = keyStoreFormat;
}
public String getKeyStoreFormat() {
return keyStoreFormat;
}
/**
* Set maximum http content length limit
*
* @param value
* the maximum length of the aggregated http content.
*/
public void setMaxHttpContentLength(int value) {
this.maxHttpContentLength = value;
}
public int getMaxHttpContentLength() {
return maxHttpContentLength;
}
/**
* Transports supported by server
*
* @param transports - list of transports
*/
public void setTransports(Transport ... transports) {
if (transports.length == 0) {
throw new IllegalArgumentException("Transports list can't be empty");
}
this.transports = Arrays.asList(transports);
}
public List getTransports() {
return transports;
}
/**
* Package prefix for sending json-object from client
* without full class name.
*
* With defined package prefix socket.io client
* just need to define '@class: 'SomeType'' in json object
* instead of '@class: 'com.full.package.name.SomeType''
*
* @param packagePrefix - prefix string
*
*/
public void setPackagePrefix(String packagePrefix) {
this.packagePrefix = packagePrefix;
}
public String getPackagePrefix() {
return packagePrefix;
}
/**
* Buffer allocation method used during packet encoding.
* Default is {@code true}
*
* @param preferDirectBuffer {@code true} if a direct buffer should be tried to be used as target for
* the encoded messages. If {@code false} is used it will allocate a heap
* buffer, which is backed by an byte array.
*/
public void setPreferDirectBuffer(boolean preferDirectBuffer) {
this.preferDirectBuffer = preferDirectBuffer;
}
public boolean isPreferDirectBuffer() {
return preferDirectBuffer;
}
/**
* Data store - used to store session data and implements distributed pubsub.
* Default is {@code MemoryStoreFactory}
*
* @param clientStoreFactory - implements StoreFactory
*
* @see com.corundumstudio.socketio.store.MemoryStoreFactory
* @see com.corundumstudio.socketio.store.RedissonStoreFactory
* @see com.corundumstudio.socketio.store.HazelcastStoreFactory
*/
public void setStoreFactory(StoreFactory clientStoreFactory) {
this.storeFactory = clientStoreFactory;
}
public StoreFactory getStoreFactory() {
return storeFactory;
}
/**
* Authorization listener invoked on every handshake.
* Accepts or denies a client by {@code AuthorizationListener.isAuthorized} method.
* Accepts all clients by default.
*
* @param authorizationListener - authorization listener itself
*
* @see com.corundumstudio.socketio.AuthorizationListener
*/
public void setAuthorizationListener(AuthorizationListener authorizationListener) {
this.authorizationListener = authorizationListener;
}
public AuthorizationListener getAuthorizationListener() {
return authorizationListener;
}
/**
* Exception listener invoked on any exception in
* SocketIO listener
*
* @param exceptionListener - listener
*
* @see com.corundumstudio.socketio.listener.ExceptionListener
*/
public void setExceptionListener(ExceptionListener exceptionListener) {
this.exceptionListener = exceptionListener;
}
public ExceptionListener getExceptionListener() {
return exceptionListener;
}
public SocketConfig getSocketConfig() {
return socketConfig;
}
/**
* TCP socket configuration
*
* @param socketConfig - config
*/
public void setSocketConfig(SocketConfig socketConfig) {
this.socketConfig = socketConfig;
}
/**
* Auto ack-response mode
* Default is {@code AckMode.AUTO_SUCCESS_ONLY}
*
* @see AckMode
*
* @param ackMode - ack mode
*/
public void setAckMode(AckMode ackMode) {
this.ackMode = ackMode;
}
public AckMode getAckMode() {
return ackMode;
}
public String getTrustStoreFormat() {
return trustStoreFormat;
}
public void setTrustStoreFormat(String trustStoreFormat) {
this.trustStoreFormat = trustStoreFormat;
}
public InputStream getTrustStore() {
return trustStore;
}
public void setTrustStore(InputStream trustStore) {
this.trustStore = trustStore;
}
public String getTrustStorePassword() {
return trustStorePassword;
}
public void setTrustStorePassword(String trustStorePassword) {
this.trustStorePassword = trustStorePassword;
}
public String getKeyManagerFactoryAlgorithm() {
return keyManagerFactoryAlgorithm;
}
public void setKeyManagerFactoryAlgorithm(String keyManagerFactoryAlgorithm) {
this.keyManagerFactoryAlgorithm = keyManagerFactoryAlgorithm;
}
/**
* Set maximum websocket frame content length limit
*
* @param maxFramePayloadLength - length
*/
public void setMaxFramePayloadLength(int maxFramePayloadLength) {
this.maxFramePayloadLength = maxFramePayloadLength;
}
public int getMaxFramePayloadLength() {
return maxFramePayloadLength;
}
/**
* Transport upgrade timeout in milliseconds
*
* @param upgradeTimeout - upgrade timeout
*/
public void setUpgradeTimeout(int upgradeTimeout) {
this.upgradeTimeout = upgradeTimeout;
}
public int getUpgradeTimeout() {
return upgradeTimeout;
}
/**
* Adds Server header with lib version to http response.
*
* Default is true
*
* @param addVersionHeader - true to add header
*/
public void setAddVersionHeader(boolean addVersionHeader) {
this.addVersionHeader = addVersionHeader;
}
public boolean isAddVersionHeader() {
return addVersionHeader;
}
/**
* Set Access-Control-Allow-Origin header value for http each
* response.
* Default is null
*
* If value is null then request ORIGIN header value used.
*
* @param origin - origin
*/
public void setOrigin(String origin) {
this.origin = origin;
}
public String getOrigin() {
return origin;
}
public boolean isUseLinuxNativeEpoll() {
return useLinuxNativeEpoll;
}
public void setUseLinuxNativeEpoll(boolean useLinuxNativeEpoll) {
this.useLinuxNativeEpoll = useLinuxNativeEpoll;
}
/**
* Set the name of the requested SSL protocol
*
* @param sslProtocol - name of protocol
*/
public void setSSLProtocol(String sslProtocol) {
this.sslProtocol = sslProtocol;
}
public String getSSLProtocol() {
return sslProtocol;
}
/**
* Timeout between channel opening and first data transfer
* Helps to avoid 'silent channel' attack and prevents
* 'Too many open files' problem in this case
*
* @param firstDataTimeout - timeout value
*/
public void setFirstDataTimeout(int firstDataTimeout) {
this.firstDataTimeout = firstDataTimeout;
}
public int getFirstDataTimeout() {
return firstDataTimeout;
}
/**
* Activate http protocol compression. Uses {@code gzip} or
* {@code deflate} encoding choice depends on the {@code "Accept-Encoding"} header value.
*
* Default is true
*
* @param httpCompression - true to use http compression
*/
public void setHttpCompression(boolean httpCompression) {
this.httpCompression = httpCompression;
}
public boolean isHttpCompression() {
return httpCompression;
}
/**
* Activate websocket protocol compression.
* Uses {@code permessage-deflate} encoding only.
*
* Default is true
*
* @param websocketCompression - true to use websocket compression
*/
public void setWebsocketCompression(boolean websocketCompression) {
this.websocketCompression = websocketCompression;
}
public boolean isWebsocketCompression() {
return websocketCompression;
}
}
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