org.apache.coyote.ajp.Constants Maven / Gradle / Ivy
The newest version!
/*
* 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.coyote.ajp;
import java.util.Hashtable;
/**
* Constants.
*
* @author Remy Maucherat
*/
public final class Constants {
public static final int DEFAULT_CONNECTION_TIMEOUT = -1;
// Prefix codes for message types from server to container
public static final byte JK_AJP13_FORWARD_REQUEST = 2;
public static final byte JK_AJP13_SHUTDOWN = 7; // XXX Unused
public static final byte JK_AJP13_PING_REQUEST = 8; // XXX Unused
public static final byte JK_AJP13_CPING_REQUEST = 10;
// Prefix codes for message types from container to server
public static final byte JK_AJP13_SEND_BODY_CHUNK = 3;
public static final byte JK_AJP13_SEND_HEADERS = 4;
public static final byte JK_AJP13_END_RESPONSE = 5;
public static final byte JK_AJP13_GET_BODY_CHUNK = 6;
public static final byte JK_AJP13_CPONG_REPLY = 9;
// Integer codes for common response header strings
public static final int SC_RESP_CONTENT_TYPE = 0xA001;
public static final int SC_RESP_CONTENT_LANGUAGE = 0xA002;
public static final int SC_RESP_CONTENT_LENGTH = 0xA003;
public static final int SC_RESP_DATE = 0xA004;
public static final int SC_RESP_LAST_MODIFIED = 0xA005;
public static final int SC_RESP_LOCATION = 0xA006;
public static final int SC_RESP_SET_COOKIE = 0xA007;
public static final int SC_RESP_SET_COOKIE2 = 0xA008;
public static final int SC_RESP_SERVLET_ENGINE = 0xA009;
public static final int SC_RESP_STATUS = 0xA00A;
public static final int SC_RESP_WWW_AUTHENTICATE = 0xA00B;
public static final int SC_RESP_AJP13_MAX = 11;
// Integer codes for common (optional) request attribute names
public static final byte SC_A_CONTEXT = 1; // XXX Unused
public static final byte SC_A_SERVLET_PATH = 2; // XXX Unused
public static final byte SC_A_REMOTE_USER = 3;
public static final byte SC_A_AUTH_TYPE = 4;
public static final byte SC_A_QUERY_STRING = 5;
public static final byte SC_A_JVM_ROUTE = 6;
public static final byte SC_A_SSL_CERT = 7;
public static final byte SC_A_SSL_CIPHER = 8;
public static final byte SC_A_SSL_SESSION = 9;
public static final byte SC_A_SSL_KEY_SIZE = 11;
public static final byte SC_A_SECRET = 12;
public static final byte SC_A_STORED_METHOD = 13;
// Used for attributes which are not in the list above
public static final byte SC_A_REQ_ATTRIBUTE = 10;
/**
* AJP private request attributes
*/
public static final String SC_A_REQ_LOCAL_ADDR = "AJP_LOCAL_ADDR";
public static final String SC_A_REQ_REMOTE_PORT = "AJP_REMOTE_PORT";
public static final String SC_A_SSL_PROTOCOL = "AJP_SSL_PROTOCOL";
// Terminates list of attributes
public static final byte SC_A_ARE_DONE = (byte)0xFF;
// Ajp13 specific - needs refactoring for the new model
/**
* Default maximum total byte size for an AJP packet
*/
public static final int MAX_PACKET_SIZE = 8192;
/**
* Size of basic packet header
*/
public static final int H_SIZE = 4;
/**
* Size of the header metadata
*/
public static final int READ_HEAD_LEN = 6;
public static final int SEND_HEAD_LEN = 8;
/**
* Default maximum size of data that can be sent in one packet
*/
public static final int MAX_READ_SIZE = MAX_PACKET_SIZE - READ_HEAD_LEN;
public static final int MAX_SEND_SIZE = MAX_PACKET_SIZE - SEND_HEAD_LEN;
// Translates integer codes to names of HTTP methods
private static final String [] methodTransArray = {
"OPTIONS",
"GET",
"HEAD",
"POST",
"PUT",
"DELETE",
"TRACE",
"PROPFIND",
"PROPPATCH",
"MKCOL",
"COPY",
"MOVE",
"LOCK",
"UNLOCK",
"ACL",
"REPORT",
"VERSION-CONTROL",
"CHECKIN",
"CHECKOUT",
"UNCHECKOUT",
"SEARCH",
"MKWORKSPACE",
"UPDATE",
"LABEL",
"MERGE",
"BASELINE-CONTROL",
"MKACTIVITY"
};
/**
* Converts an AJP coded HTTP method to the method name.
* @param code the coded value
* @return the string value of the method
*/
public static final String getMethodForCode(final int code) {
return methodTransArray[code];
}
public static final int SC_M_JK_STORED = (byte) 0xFF;
// id's for common request headers
public static final int SC_REQ_ACCEPT = 1;
public static final int SC_REQ_ACCEPT_CHARSET = 2;
public static final int SC_REQ_ACCEPT_ENCODING = 3;
public static final int SC_REQ_ACCEPT_LANGUAGE = 4;
public static final int SC_REQ_AUTHORIZATION = 5;
public static final int SC_REQ_CONNECTION = 6;
public static final int SC_REQ_CONTENT_TYPE = 7;
public static final int SC_REQ_CONTENT_LENGTH = 8;
public static final int SC_REQ_COOKIE = 9;
public static final int SC_REQ_COOKIE2 = 10;
public static final int SC_REQ_HOST = 11;
public static final int SC_REQ_PRAGMA = 12;
public static final int SC_REQ_REFERER = 13;
public static final int SC_REQ_USER_AGENT = 14;
// Translates integer codes to request header names
private static final String [] headerTransArray = {
"accept",
"accept-charset",
"accept-encoding",
"accept-language",
"authorization",
"connection",
"content-type",
"content-length",
"cookie",
"cookie2",
"host",
"pragma",
"referer",
"user-agent"
};
/**
* Converts an AJP coded HTTP request header to the header name.
* @param code the coded value
* @return the string value of the header name
*/
public static final String getHeaderForCode(final int code) {
return headerTransArray[code];
}
// Translates integer codes to response header names
private static final String [] responseTransArray = {
"Content-Type",
"Content-Language",
"Content-Length",
"Date",
"Last-Modified",
"Location",
"Set-Cookie",
"Set-Cookie2",
"Servlet-Engine",
"Status",
"WWW-Authenticate"
};
/**
* Converts an AJP coded response header name to the HTTP response header name.
* @param code the coded value
* @return the string value of the header
*/
public static final String getResponseHeaderForCode(final int code) {
return responseTransArray[code];
}
private static final Hashtable responseTransHash =
new Hashtable<>(20);
static {
try {
int i;
for (i = 0; i < SC_RESP_AJP13_MAX; i++) {
responseTransHash.put(getResponseHeaderForCode(i),
Integer.valueOf(0xA001 + i));
}
}
catch (Exception e) {
// Do nothing
}
}
public static final int getResponseAjpIndex(String header)
{
Integer i = responseTransHash.get(header);
if (i == null) {
return 0;
} else {
return i.intValue();
}
}
}