org.apache.catalina.connector

Class CoyoteAdapter

java.lang.Object

org.apache.catalina.connector.CoyoteAdapter

All Implemented Interfaces:

Adapter

public class CoyoteAdapter
extends Object
implements Adapter

Implementation of a request processor which delegates the processing to a Coyote processor.

Author:

Craig R. McClanahan, Remy Maucherat

Field Summary

Fields

Modifier and Type	Field and Description
static int	ADAPTER_NOTES
protected static boolean	ALLOW_BACKSLASH
protected static StringManager	sm The string manager for this package.

Constructor Summary

Constructors

Constructor and Description
CoyoteAdapter(Connector connector) Construct a new CoyoteProcessor associated with the specified connector.

Method Summary

Modifier and Type	Method and Description
boolean	asyncDispatch(Request req, Response res, SocketEvent status)
static boolean	checkNormalize(MessageBytes uriMB) Check that the URI is normalized following character decoding.
void	checkRecycled(Request req, Response res) Assert that request and response have been recycled.
protected void	convertMB(MessageBytes mb) Character conversion of the a US-ASCII MessageBytes.
protected void	convertURI(MessageBytes uri, Request request) Character conversion of the URI.
protected static void	copyBytes(byte[] b, int dest, int src, int len) Copy an array of bytes to a different position.
String	getDomain() Provide the name of the domain to use to register MBeans for components associated with the connector.
void	log(Request req, Response res, long time)
static boolean	normalize(MessageBytes uriMB) This method normalizes "\", "//", "/./" and "/../".
protected void	parsePathParameters(Request req, Request request) Extract the path parameters from the request.
protected void	parseSessionCookiesId(Request request) Parse session id in URL.
protected void	parseSessionSslId(Request request) Look for SSL session ID if required.
protected boolean	postParseRequest(Request req, Request request, Response res, Response response) Perform the necessary processing after the HTTP headers have been parsed to enable the request/response pair to be passed to the start of the container pipeline for processing.
boolean	prepare(Request req, Response res) Prepare the given request/response for processing.
void	service(Request req, Response res) Service method.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ADAPTER_NOTES

public static final int ADAPTER_NOTES

See Also:

Constant Field Values

ALLOW_BACKSLASH

protected static final boolean ALLOW_BACKSLASH

sm

protected static final StringManager sm

The string manager for this package.

Constructor Detail

CoyoteAdapter

public CoyoteAdapter(Connector connector)

Construct a new CoyoteProcessor associated with the specified connector.

Parameters:

connector - CoyoteConnector that owns this processor

Method Detail

asyncDispatch

public boolean asyncDispatch(Request req,
                             Response res,
                             SocketEvent status)
                      throws Exception

Specified by:

asyncDispatch in interface Adapter

Throws:

Exception

service

public void service(Request req,
                    Response res)
             throws Exception

Service method.

Specified by:

service in interface Adapter

Parameters:

req - The request object

res - The response object

Throws:

Exception - if an error happens during handling of the request. Common errors are:

• IOException if an input/output error occurs and we are processing an included servlet (otherwise it is swallowed and handled by the top level error handler mechanism)
• ServletException if a servlet throws an exception and we are processing an included servlet (otherwise it is swallowed and handled by the top level error handler mechanism)

Tomcat should be able to handle and log any other exception ( including runtime exceptions )

prepare

public boolean prepare(Request req,
                       Response res)
                throws IOException,
                       ServletException

Description copied from interface: Adapter

Prepare the given request/response for processing. This method requires that the request object has been populated with the information available from the HTTP headers.

Specified by:

prepare in interface Adapter

Parameters:

req - The request object

res - The response object

Returns:

true if processing can continue, otherwise false in which case an appropriate error will have been set on the response

Throws:

IOException

ServletException

log

public void log(Request req,
                Response res,
                long time)

Specified by:

log in interface Adapter

checkRecycled

public void checkRecycled(Request req,
                          Response res)

Description copied from interface: Adapter

Assert that request and response have been recycled. If they have not then log a warning and force a recycle. This method is called as a safety check when a processor is being recycled and may be returned to a pool for reuse.

Specified by:

checkRecycled in interface Adapter

Parameters:

req - Request

res - Response

getDomain

public String getDomain()

Description copied from interface: Adapter

Provide the name of the domain to use to register MBeans for components associated with the connector.

Specified by:

getDomain in interface Adapter

Returns:

The MBean domain name

postParseRequest

protected boolean postParseRequest(Request req,
                                   Request request,
                                   Response res,
                                   Response response)
                            throws IOException,
                                   ServletException

Perform the necessary processing after the HTTP headers have been parsed to enable the request/response pair to be passed to the start of the container pipeline for processing.

Parameters:

req - The coyote request object

request - The catalina request object

res - The coyote response object

response - The catalina response object

Returns:

true if the request should be passed on to the start of the container pipeline, otherwise false

Throws:

IOException - If there is insufficient space in a buffer while processing headers

ServletException - If the supported methods of the target servlet cannot be determined

parsePathParameters

protected void parsePathParameters(Request req,
                                   Request request)

Extract the path parameters from the request. This assumes parameters are of the form /path;name=value;name2=value2/ etc. Currently only really interested in the session ID that will be in this form. Other parameters can safely be ignored.

Parameters:

req - The Coyote request object

request - The Servlet request object

parseSessionSslId

protected void parseSessionSslId(Request request)

Look for SSL session ID if required. Only look for SSL Session ID if it is the only tracking method enabled.

Parameters:

request - The Servlet request obejct

parseSessionCookiesId

protected void parseSessionCookiesId(Request request)

Parse session id in URL.

Parameters:

request - The Servlet request obejct

convertURI

protected void convertURI(MessageBytes uri,
                          Request request)
                   throws IOException

Character conversion of the URI.

Parameters:

uri - MessageBytes object containing the URI

request - The Servlet request obejct

Throws:

IOException - if a IO exception occurs sending an error to the client

convertMB

protected void convertMB(MessageBytes mb)

Character conversion of the a US-ASCII MessageBytes.

Parameters:

mb - The MessageBytes instance contaning the bytes that should be converted to chars

normalize

public static boolean normalize(MessageBytes uriMB)

This method normalizes "\", "//", "/./" and "/../".

Parameters:

uriMB - URI to be normalized

Returns:

false if normalizing this URI would require going above the root, or if the URI contains a null byte, otherwise true

checkNormalize

public static boolean checkNormalize(MessageBytes uriMB)

Check that the URI is normalized following character decoding. This method checks for "\", 0, "//", "/./" and "/../".

Parameters:

uriMB - URI to be checked (should be chars)

Returns:

false if sequences that are supposed to be normalized are still present in the URI, otherwise true

copyBytes

protected static void copyBytes(byte[] b,
                                int dest,
                                int src,
                                int len)

Copy an array of bytes to a different position. Used during normalization.

Parameters:

b - The bytes that should be copied

dest - Destination offset

src - Source offset

len - Length