org.ws4d.java.communication.protocol.http

Class HTTPUtil

java.lang.Object

org.ws4d.java.communication.protocol.http.HTTPUtil

public class HTTPUtil
extends java.lang.Object

HTTP support class. All RFC methods are here!

Field Summary

Fields

Modifier and Type	Field and Description
static HashSet	HTTP_HEADER_CASE_INSENSITIVE_VALUES List with header fieldvalues who are case-insensitive.

Method Summary

Modifier and Type	Method and Description
static byte[]	camelCase(java.lang.String s)
static java.lang.String	getHttpBasicAuthorizationField(UserCredentialInfo info)
static java.lang.String[]	getUserCredentialInfo(java.lang.String basicAuthorizationField)
static boolean	isHTTPS(URI uri)
static void	readChunkExtensions(java.io.InputStream in, HashMap chunkextensions) Reads the chunk extension from stream.
static org.ws4d.java.communication.protocol.http.HTTPChunkHeader	readChunkHeader(java.io.InputStream in, boolean secure) Reads the HTTP chunk header from stream.
static java.lang.String	readElement(java.io.InputStream in) Reads a single element from the input stream.
static java.lang.String	readElement(java.io.InputStream in, int maxlen) Reads a single element from the input stream.
static void	readHeaderFields(java.io.InputStream in, HashMap headerfields) Reads a HTTP header fields from the input stream.
static java.lang.String	readRequestLine(java.io.InputStream in) Reads a single protocol line from the input stream.
static java.lang.String	readRequestVersion(java.io.InputStream in) Reads the HTTP version from the input stream.

Methods inherited from class java.lang.Object

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

Field Detail

HTTP_HEADER_CASE_INSENSITIVE_VALUES

public static final HashSet HTTP_HEADER_CASE_INSENSITIVE_VALUES

List with header fieldvalues who are case-insensitive.

Method Detail

readElement

public static java.lang.String readElement(java.io.InputStream in)
                                    throws java.io.IOException

Reads a single element from the input stream. Elements are separated by space characters. (see RFC2616 5.1)

Parameters:

in - input stream to read from.

Returns:

the read element.

Throws:

java.io.IOException

readRequestLine

public static java.lang.String readRequestLine(java.io.InputStream in)
                                        throws java.io.IOException

Reads a single protocol line from the input stream. HTTP defines the sequence CR LF as the end-of-line marker. (see RFC2616 2.2)

Parameters:

in - input stream to read from.

Returns:

the protocol line.

Throws:

java.io.IOException

readElement

public static java.lang.String readElement(java.io.InputStream in,
                                           int maxlen)
                                    throws java.io.IOException

Reads a single element from the input stream. Elements are separated by space characters. (see RFC2616 5.1). Stops after given amount of bytes.

Parameters:

in - in input stream to read from.

maxlen - max length to read from stream.

Returns:

the read element.

Throws:

java.io.IOException

readRequestVersion

public static java.lang.String readRequestVersion(java.io.InputStream in)
                                           throws java.io.IOException,
                                                  ProtocolException

Reads the HTTP version from the input stream. (see RFC2616 3.1)

Parameters:

in - input stream to read from.

Returns:

the read element.

Throws:

java.io.IOException

ProtocolException

readHeaderFields

public static void readHeaderFields(java.io.InputStream in,
                                    HashMap headerfields)
                             throws java.io.IOException,
                                    ProtocolException

Reads a HTTP header fields from the input stream. To learn more about HTTP header fields, take a look at RFC2616 4.2, 4.5, 5.3, 6.2, 7.1

Parameters:

in - the input stream to read from.

headerfields - Hashtable to store the fields in.

Throws:

java.io.IOException

ProtocolException

readChunkHeader

public static org.ws4d.java.communication.protocol.http.HTTPChunkHeader readChunkHeader(java.io.InputStream in,
                                                                                        boolean secure)
                                                                                 throws java.io.IOException,
                                                                                        ProtocolException

Reads the HTTP chunk header from stream.

Parameters:

in - Stream from which to read the header.

Returns:

a HTTPChunkHeader.

Throws:

java.io.IOException

ProtocolException

readChunkExtensions

public static void readChunkExtensions(java.io.InputStream in,
                                       HashMap chunkextensions)
                                throws java.io.IOException,
                                       ProtocolException

Reads the chunk extension from stream. (RFC 2616, 3.6.1)

Parameters:

in - the stream to read from.

chunkextensions - Map to store the fields in.

Throws:

java.io.IOException

ProtocolException

camelCase

public static byte[] camelCase(java.lang.String s)

isHTTPS

public static boolean isHTTPS(URI uri)

Parameters:

uri -

Returns:

true if schema of uri is "https"

getHttpBasicAuthorizationField

public static java.lang.String getHttpBasicAuthorizationField(UserCredentialInfo info)

getUserCredentialInfo

public static java.lang.String[] getUserCredentialInfo(java.lang.String basicAuthorizationField)