1 /* 2 * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Sun designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Sun in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 22 * CA 95054 USA or visit www.sun.com if you need additional information or 23 * have any questions. 24 */ 25 26 package sun.net.www.protocol.http; 27 28 import java.net.URL; 29 import java.net.URI; 30 import java.net.URISyntaxException; 31 import java.net.PasswordAuthentication; 32 import sun.net.www.HeaderParser; 33 34 35 /** 36 * BasicAuthentication: Encapsulate an http server authentication using 37 * the "basic" scheme. 38 * 39 * @author Bill Foote 40 */ 41 42 43 class BasicAuthentication extends AuthenticationInfo { 44 45 private static final long serialVersionUID = 100L; 46 47 /** The authentication string for this host, port, and realm. This is 48 a simple BASE64 encoding of "login:password". */ 49 String auth; 50 51 /** 52 * Create a BasicAuthentication 53 */ 54 public BasicAuthentication(boolean isProxy, String host, int port, 55 String realm, PasswordAuthentication pw) { 56 super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, 57 AuthScheme.BASIC, host, port, realm); 58 String plain = pw.getUserName() + ":"; 59 byte[] nameBytes = null; 60 try { 61 nameBytes = plain.getBytes("ISO-8859-1"); 62 } catch (java.io.UnsupportedEncodingException uee) { 63 assert false; 64 } 65 66 // get password bytes 67 char[] passwd = pw.getPassword(); 68 byte[] passwdBytes = new byte[passwd.length]; 69 for (int i=0; i<passwd.length; i++) 70 passwdBytes[i] = (byte)passwd[i]; 71 72 // concatenate user name and password bytes and encode them 73 byte[] concat = new byte[nameBytes.length + passwdBytes.length]; 74 System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length); 75 System.arraycopy(passwdBytes, 0, concat, nameBytes.length, 76 passwdBytes.length); 77 this.auth = "Basic " + (new sun.misc.BASE64Encoder()).encode(concat); 78 this.pw = pw; 79 } 80 81 /** 82 * Create a BasicAuthentication 83 */ 84 public BasicAuthentication(boolean isProxy, String host, int port, 85 String realm, String auth) { 86 super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, 87 AuthScheme.BASIC, host, port, realm); 88 this.auth = "Basic " + auth; 89 } 90 91 /** 92 * Create a BasicAuthentication 93 */ 94 public BasicAuthentication(boolean isProxy, URL url, String realm, 95 PasswordAuthentication pw) { 96 super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, 97 AuthScheme.BASIC, url, realm); 98 String plain = pw.getUserName() + ":"; 99 byte[] nameBytes = null; 100 try { 101 nameBytes = plain.getBytes("ISO-8859-1"); 102 } catch (java.io.UnsupportedEncodingException uee) { 103 assert false; 104 } 105 106 // get password bytes 107 char[] passwd = pw.getPassword(); 108 byte[] passwdBytes = new byte[passwd.length]; 109 for (int i=0; i<passwd.length; i++) 110 passwdBytes[i] = (byte)passwd[i]; 111 112 // concatenate user name and password bytes and encode them 113 byte[] concat = new byte[nameBytes.length + passwdBytes.length]; 114 System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length); 115 System.arraycopy(passwdBytes, 0, concat, nameBytes.length, 116 passwdBytes.length); 117 this.auth = "Basic " + (new sun.misc.BASE64Encoder()).encode(concat); 118 this.pw = pw; 119 } 120 121 /** 122 * Create a BasicAuthentication 123 */ 124 public BasicAuthentication(boolean isProxy, URL url, String realm, 125 String auth) { 126 super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, 127 AuthScheme.BASIC, url, realm); 128 this.auth = "Basic " + auth; 129 } 130 131 /** 132 * @return true if this authentication supports preemptive authorization 133 */ 134 @Override 135 public boolean supportsPreemptiveAuthorization() { 136 return true; 137 } 138 139 /** 140 * Set header(s) on the given connection. This will only be called for 141 * definitive (i.e. non-preemptive) authorization. 142 * @param conn The connection to apply the header(s) to 143 * @param p A source of header values for this connection, if needed. 144 * @param raw The raw header values for this connection, if needed. 145 * @return true if all goes well, false if no headers were set. 146 */ 147 @Override 148 public boolean setHeaders(HttpURLConnection conn, HeaderParser p, String raw) { 149 conn.setAuthenticationProperty(getHeaderName(), getHeaderValue(null,null)); 150 return true; 151 } 152 153 /** 154 * @return the value of the HTTP header this authentication wants set 155 */ 156 @Override 157 public String getHeaderValue(URL url, String method) { 158 /* For Basic the authorization string does not depend on the request URL 159 * or the request method 160 */ 161 return auth; 162 } 163 164 /** 165 * For Basic Authentication, the security parameters can never be stale. 166 * In other words there is no possibility to reuse the credentials. 167 * They are always either valid or invalid. 168 */ 169 @Override 170 public boolean isAuthorizationStale (String header) { 171 return false; 172 } 173 174 /** 175 * @return the common root path between npath and path. 176 * This is used to detect when we have an authentication for two 177 * paths and the root of th authentication space is the common root. 178 */ 179 180 static String getRootPath(String npath, String opath) { 181 int index = 0; 182 int toindex; 183 184 /* Must normalize so we don't get confused by ../ and ./ segments */ 185 try { 186 npath = new URI (npath).normalize().getPath(); 187 opath = new URI (opath).normalize().getPath(); 188 } catch (URISyntaxException e) { 189 /* ignore error and use the old value */ 190 } 191 192 while (index < opath.length()) { 193 toindex = opath.indexOf('/', index+1); 194 if (toindex != -1 && opath.regionMatches(0, npath, 0, toindex+1)) 195 index = toindex; 196 else 197 return opath.substring(0, index+1); 198 } 199 /*should not reach here. If we do simply return npath*/ 200 return npath; 201 } 202 203 }