/*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed with
* this work for additional information regarding copyright ownership .
* The ASF licenses this file to You 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 org.apache.tomcat.websocket;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import jakarta.websocket.ClientEndpointConfig;
import jakarta.websocket.Extension;
/**
* Internal implementation constants .
*/
public class Constants {
// OP Codes
public static final byte OPCODE_CONTINUATION = 0 x00;
public static final byte OPCODE_TEXT = 0 x01;
public static final byte OPCODE_BINARY = 0 x02;
public static final byte OPCODE_CLOSE = 0 x08;
public static final byte OPCODE_PING = 0 x09;
public static final byte OPCODE_PONG = 0 x0A;
// Internal OP Codes
// RFC 6455 limits OP Codes to 4 bits so these should never clash
// Always set bit 4 so these will be treated as control codes
static final byte INTERNAL_OPCODE_FLUSH = 0 x18;
// Buffers
static final int DEFAULT_BUFFER_SIZE = Integer
.getInteger("org.apache.tomcat.websocket.DEFAULT_BUFFER_SIZE" , 8 * 1024 ).intValue();
// Client connection
/**
* Property name to set to configure the value that is passed to
* { @ link javax . net . ssl . SSLEngine # setEnabledProtocols ( String [ ] ) } . The value should be a comma separated string .
*
* @ deprecated This will be removed in Tomcat 11 . Use { @ link ClientEndpointConfig # getSSLContext ( ) }
*/
@Deprecated(forRemoval = true , since = "Tomcat 10.1.x" )
public static final String SSL_PROTOCOLS_PROPERTY = "org.apache.tomcat.websocket.SSL_PROTOCOLS" ;
@Deprecated(forRemoval = true , since = "Tomcat 10.1.x" )
public static final String SSL_TRUSTSTORE_PROPERTY = "org.apache.tomcat.websocket.SSL_TRUSTSTORE" ;
@Deprecated(forRemoval = true , since = "Tomcat 10.1.x" )
public static final String SSL_TRUSTSTORE_PWD_PROPERTY = "org.apache.tomcat.websocket.SSL_TRUSTSTORE_PWD" ;
@Deprecated(forRemoval = true , since = "Tomcat 10.1.x" )
public static final String SSL_TRUSTSTORE_PWD_DEFAULT = "changeit" ;
/**
* Property name to set to configure used SSLContext . The value should be an instance of SSLContext . If this
* property is present , the SSL_TRUSTSTORE * properties are ignored .
*
* @ deprecated This will be removed in Tomcat 11 . Use { @ link ClientEndpointConfig # getSSLContext ( ) }
*/
@Deprecated(forRemoval = true , since = "Tomcat 10.1.x" )
public static final String SSL_CONTEXT_PROPERTY = "org.apache.tomcat.websocket.SSL_CONTEXT" ;
/**
* Property name to set to configure the timeout ( in milliseconds ) when establishing a WebSocket connection to
* server . The default is { @ link # IO_TIMEOUT_MS_DEFAULT } .
*/
public static final String IO_TIMEOUT_MS_PROPERTY = "org.apache.tomcat.websocket.IO_TIMEOUT_MS" ;
public static final long IO_TIMEOUT_MS_DEFAULT = 5000 ;
// RFC 2068 recommended a limit of 5
// Most browsers have a default limit of 20
public static final String MAX_REDIRECTIONS_PROPERTY = "org.apache.tomcat.websocket.MAX_REDIRECTIONS" ;
public static final int MAX_REDIRECTIONS_DEFAULT = 20 ;
// HTTP upgrade header names and values
public static final String HOST_HEADER_NAME = "Host" ;
public static final String UPGRADE_HEADER_NAME = "Upgrade" ;
public static final String UPGRADE_HEADER_VALUE = "websocket" ;
public static final String ORIGIN_HEADER_NAME = "Origin" ;
public static final String CONNECTION_HEADER_NAME = "Connection" ;
public static final String CONNECTION_HEADER_VALUE = "upgrade" ;
public static final String LOCATION_HEADER_NAME = "Location" ;
public static final String AUTHORIZATION_HEADER_NAME = "Authorization" ;
public static final String WWW_AUTHENTICATE_HEADER_NAME = "WWW-Authenticate" ;
public static final String PROXY_AUTHORIZATION_HEADER_NAME = "Proxy-Authorization" ;
public static final String PROXY_AUTHENTICATE_HEADER_NAME = "Proxy-Authenticate" ;
public static final String WS_VERSION_HEADER_NAME = "Sec-WebSocket-Version" ;
public static final String WS_VERSION_HEADER_VALUE = "13" ;
public static final String WS_KEY_HEADER_NAME = "Sec-WebSocket-Key" ;
public static final String WS_PROTOCOL_HEADER_NAME = "Sec-WebSocket-Protocol" ;
public static final String WS_EXTENSIONS_HEADER_NAME = "Sec-WebSocket-Extensions" ;
// HTTP status codes
public static final int MULTIPLE_CHOICES = 300 ;
public static final int MOVED_PERMANENTLY = 301 ;
public static final int FOUND = 302 ;
public static final int SEE_OTHER = 303 ;
public static final int USE_PROXY = 305 ;
public static final int TEMPORARY_REDIRECT = 307 ;
public static final int UNAUTHORIZED = 401 ;
public static final int PROXY_AUTHENTICATION_REQUIRED = 407 ;
// Configuration for Origin header in client
static final String DEFAULT_ORIGIN_HEADER_VALUE = System
.getProperty("org.apache.tomcat.websocket.DEFAULT_ORIGIN_HEADER_VALUE" );
// Configuration for blocking sends
public static final String BLOCKING_SEND_TIMEOUT_PROPERTY = "org.apache.tomcat.websocket.BLOCKING_SEND_TIMEOUT" ;
// Milliseconds so this is 20 seconds
public static final long DEFAULT_BLOCKING_SEND_TIMEOUT = 20 * 1000 ;
// Configuration for read idle timeout on WebSocket session
public static final String READ_IDLE_TIMEOUT_MS = "org.apache.tomcat.websocket.READ_IDLE_TIMEOUT_MS" ;
// Configuration for write idle timeout on WebSocket session
public static final String WRITE_IDLE_TIMEOUT_MS = "org.apache.tomcat.websocket.WRITE_IDLE_TIMEOUT_MS" ;
// Configuration for background processing checks intervals
static final int DEFAULT_PROCESS_PERIOD = Integer
.getInteger("org.apache.tomcat.websocket.DEFAULT_PROCESS_PERIOD" , 10 ).intValue();
public static final String WS_AUTHENTICATION_USER_NAME = "org.apache.tomcat.websocket.WS_AUTHENTICATION_USER_NAME" ;
public static final String WS_AUTHENTICATION_PASSWORD = "org.apache.tomcat.websocket.WS_AUTHENTICATION_PASSWORD" ;
public static final String WS_AUTHENTICATION_REALM = "org.apache.tomcat.websocket.WS_AUTHENTICATION_REALM" ;
public static final String WS_AUTHENTICATION_PROXY_USER_NAME = "org.apache.tomcat.websocket.WS_AUTHENTICATION_PROXY_USER_NAME" ;
public static final String WS_AUTHENTICATION_PROXY_PASSWORD = "org.apache.tomcat.websocket.WS_AUTHENTICATION_PROXY_PASSWORD" ;
public static final String WS_AUTHENTICATION_PROXY_REALM = "org.apache.tomcat.websocket.WS_AUTHENTICATION_PROXY_REALM" ;
public static final List<Extension> INSTALLED_EXTENSIONS;
static {
List<Extension> installed = new ArrayList<>(1 );
installed.add(new WsExtension("permessage-deflate" ));
INSTALLED_EXTENSIONS = Collections.unmodifiableList(installed);
}
private Constants() {
// Hide default constructor
}
}
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