/*
* Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.net.www.protocol.http;
import java.net.URL;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.PasswordAuthentication;
import sun.net.www.HeaderParser;
/**
* BasicAuthentication: Encapsulate an http server authentication using
* the "basic" scheme.
*
* @author Bill Foote
* @version 1.27, 05/05/07
*/
class BasicAuthentication extends AuthenticationInfo {
private static final long serialVersionUID = 100L;
static final char BASIC_AUTH = 'B';
/** The authentication string for this host, port, and realm. This is
a simple BASE64 encoding of "login:password". */
String auth;
/**
* Create a BasicAuthentication
*/
public BasicAuthentication(boolean isProxy, String host, int port,
String realm, PasswordAuthentication pw) {
super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
BASIC_AUTH, host, port, realm);
String plain = pw.getUserName() + ":";
byte[] nameBytes = null;
try {
nameBytes = plain.getBytes("ISO-8859-1");
} catch (java.io.UnsupportedEncodingException uee) {
assert false;
}
// get password bytes
char[] passwd = pw.getPassword();
byte[] passwdBytes = new byte[passwd.length];
for (int i=0; i<passwd.length; i++)
passwdBytes[i] = (byte)passwd[i];
// concatenate user name and password bytes and encode them
byte[] concat = new byte[nameBytes.length + passwdBytes.length];
System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length);
System.arraycopy(passwdBytes, 0, concat, nameBytes.length,
passwdBytes.length);
this.auth = "Basic " + (new sun.misc.BASE64Encoder()).encode(concat);
this.pw = pw;
}
/**
* Create a BasicAuthentication
*/
public BasicAuthentication(boolean isProxy, String host, int port,
String realm, String auth) {
super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
BASIC_AUTH, host, port, realm);
this.auth = "Basic " + auth;
}
/**
* Create a BasicAuthentication
*/
public BasicAuthentication(boolean isProxy, URL url, String realm,
PasswordAuthentication pw) {
super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
BASIC_AUTH, url, realm);
String plain = pw.getUserName() + ":";
byte[] nameBytes = null;
try {
nameBytes = plain.getBytes("ISO-8859-1");
} catch (java.io.UnsupportedEncodingException uee) {
assert false;
}
// get password bytes
char[] passwd = pw.getPassword();
byte[] passwdBytes = new byte[passwd.length];
for (int i=0; i<passwd.length; i++)
passwdBytes[i] = (byte)passwd[i];
// concatenate user name and password bytes and encode them
byte[] concat = new byte[nameBytes.length + passwdBytes.length];
System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length);
System.arraycopy(passwdBytes, 0, concat, nameBytes.length,
passwdBytes.length);
this.auth = "Basic " + (new sun.misc.BASE64Encoder()).encode(concat);
this.pw = pw;
}
/**
* Create a BasicAuthentication
*/
public BasicAuthentication(boolean isProxy, URL url, String realm,
String auth) {
super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
BASIC_AUTH, url, realm);
this.auth = "Basic " + auth;
}
/**
* @return true if this authentication supports preemptive authorization
*/
boolean supportsPreemptiveAuthorization() {
return true;
}
/**
* @return the name of the HTTP header this authentication wants set
*/
String getHeaderName() {
if (type == SERVER_AUTHENTICATION) {
return "Authorization";
} else {
return "Proxy-authorization";
}
}
/**
* Set header(s) on the given connection. This will only be called for
* definitive (i.e. non-preemptive) authorization.
* @param conn The connection to apply the header(s) to
* @param p A source of header values for this connection, if needed.
* @param raw The raw header values for this connection, if needed.
* @return true if all goes well, false if no headers were set.
*/
boolean setHeaders(HttpURLConnection conn, HeaderParser p, String raw) {
conn.setAuthenticationProperty(getHeaderName(), getHeaderValue(null,null));
return true;
}
/**
* @return the value of the HTTP header this authentication wants set
*/
String getHeaderValue(URL url, String method) {
/* For Basic the authorization string does not depend on the request URL
* or the request method
*/
return auth;
}
/**
* For Basic Authentication, the security parameters can never be stale.
* In other words there is no possibility to reuse the credentials.
* They are always either valid or invalid.
*/
boolean isAuthorizationStale (String header) {
return false;
}
/**
* For Basic Authentication, there is no security information in the
* response
*/
void checkResponse (String header, String method, URL url) {
}
/**
* @return the common root path between npath and path.
* This is used to detect when we have an authentication for two
* paths and the root of th authentication space is the common root.
*/
static String getRootPath(String npath, String opath) {
int index = 0;
int toindex;
/* Must normalize so we don't get confused by ../ and ./ segments */
try {
npath = new URI (npath).normalize().getPath();
opath = new URI (opath).normalize().getPath();
} catch (URISyntaxException e) {
/* ignore error and use the old value */
}
while (index < opath.length()) {
toindex = opath.indexOf('/', index+1);
if (toindex != -1 && opath.regionMatches(0, npath, 0, toindex+1))
index = toindex;
else
return opath.substring(0, index+1);
}
/*should not reach here. If we do simply return npath*/
return npath;
}
}
|