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A pure-java CIFS/SMB client library
/* jcifs smb client library in Java
* Copyright (C) 2002 "Michael B. Allen"
* "Eric Glass"
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.http;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Authenticator;
import java.net.HttpURLConnection;
import java.net.PasswordAuthentication;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLDecoder;
import java.security.GeneralSecurityException;
import java.security.Permission;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSocketFactory;
import org.bouncycastle.util.encoders.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import jcifs.CIFSContext;
import jcifs.RuntimeCIFSException;
import jcifs.ntlmssp.NtlmFlags;
import jcifs.ntlmssp.NtlmMessage;
import jcifs.ntlmssp.Type1Message;
import jcifs.ntlmssp.Type2Message;
import jcifs.ntlmssp.Type3Message;
import jcifs.smb.NtlmPasswordAuthentication;
/**
* Wraps an HttpURLConnection to provide NTLM authentication
* services.
*
* Please read Using jCIFS NTLM Authentication for HTTP Connections.
*
* Warning: Do not use this if there is a chance that you might have multiple connections (even plain
* HttpURLConnections, for the complete JRE) to the same host with different or mixed anonymous/authenticated
* credentials. Authenticated connections can/will be reused.
*
* @deprecated This is broken by design, even a possible vulnerability. Deprecation is conditional on whether future JDK
* versions will allow to do this safely.
*/
@Deprecated
public class NtlmHttpURLConnection extends HttpURLConnection {
private static final Logger log = LoggerFactory.getLogger(NtlmHttpURLConnection.class);
private static final int MAX_REDIRECTS = Integer.parseInt(System.getProperty("http.maxRedirects", "20"));
private HttpURLConnection connection;
private Map> requestProperties;
private Map> headerFields;
private ByteArrayOutputStream cachedOutput;
private String authProperty;
private String authMethod;
private boolean handshakeComplete;
private CIFSContext transportContext;
/**
*
* @param connection
* connection to wrap
* @param tc
* context to use
*/
public NtlmHttpURLConnection ( HttpURLConnection connection, CIFSContext tc ) {
super(connection.getURL());
this.connection = connection;
this.transportContext = tc;
this.requestProperties = new HashMap<>();
copySettings();
}
/**
*
*/
private final void copySettings () {
try {
this.setRequestMethod(this.connection.getRequestMethod());
}
catch ( ProtocolException e ) {
throw new RuntimeCIFSException("Failed to set request method", e);
}
this.headerFields = null;
for ( Entry> property : this.connection.getRequestProperties().entrySet() ) {
String key = property.getKey();
StringBuffer value = new StringBuffer();
Iterator values = property.getValue().iterator();
while ( values.hasNext() ) {
value.append(values.next());
if ( values.hasNext() )
value.append(", ");
}
this.setRequestProperty(key, value.toString());
}
this.setAllowUserInteraction(this.connection.getAllowUserInteraction());
this.setDoInput(this.connection.getDoInput());
this.setDoOutput(this.connection.getDoOutput());
this.setIfModifiedSince(this.connection.getIfModifiedSince());
this.setUseCaches(this.connection.getUseCaches());
this.setReadTimeout(this.connection.getReadTimeout());
this.setConnectTimeout(this.connection.getConnectTimeout());
this.setInstanceFollowRedirects(this.connection.getInstanceFollowRedirects());
}
@Override
public void connect () throws IOException {
if ( this.connected )
return;
this.connection.connect();
this.connected = true;
}
private void handshake () {
if ( this.handshakeComplete )
return;
try {
doHandshake();
}
catch (
IOException |
GeneralSecurityException e ) {
throw new RuntimeCIFSException("NTLM handshake failed", e);
}
this.handshakeComplete = true;
}
@Override
public URL getURL () {
return this.connection.getURL();
}
@Override
public int getContentLength () {
handshake();
return this.connection.getContentLength();
}
@Override
public String getContentType () {
handshake();
return this.connection.getContentType();
}
@Override
public String getContentEncoding () {
handshake();
return this.connection.getContentEncoding();
}
@Override
public long getExpiration () {
handshake();
return this.connection.getExpiration();
}
@Override
public long getDate () {
handshake();
return this.connection.getDate();
}
@Override
public long getLastModified () {
handshake();
return this.connection.getLastModified();
}
@Override
public String getHeaderField ( String header ) {
handshake();
return this.connection.getHeaderField(header);
}
private Map> getHeaderFields0 () {
if ( this.headerFields != null )
return this.headerFields;
Map> map = new HashMap<>();
String key = this.connection.getHeaderFieldKey(0);
String value = this.connection.getHeaderField(0);
for ( int i = 1; key != null || value != null; i++ ) {
List values = map.get(key);
if ( values == null ) {
values = new ArrayList<>();
map.put(key, values);
}
values.add(value);
key = this.connection.getHeaderFieldKey(i);
value = this.connection.getHeaderField(i);
}
for ( Entry> entry : map.entrySet() ) {
entry.setValue(Collections.unmodifiableList(entry.getValue()));
}
return ( this.headerFields = Collections.unmodifiableMap(map) );
}
@Override
public Map> getHeaderFields () {
if ( this.headerFields != null )
return this.headerFields;
handshake();
return getHeaderFields0();
}
@Override
public int getHeaderFieldInt ( String header, int def ) {
handshake();
return this.connection.getHeaderFieldInt(header, def);
}
@Override
public long getHeaderFieldDate ( String header, long def ) {
handshake();
return this.connection.getHeaderFieldDate(header, def);
}
@Override
public String getHeaderFieldKey ( int index ) {
handshake();
return this.connection.getHeaderFieldKey(index);
}
@Override
public String getHeaderField ( int index ) {
handshake();
return this.connection.getHeaderField(index);
}
@Override
public Object getContent () throws IOException {
handshake();
return this.connection.getContent();
}
@Override
public Object getContent ( Class[] classes ) throws IOException {
handshake();
return this.connection.getContent(classes);
}
@Override
public Permission getPermission () throws IOException {
return this.connection.getPermission();
}
@Override
public InputStream getInputStream () throws IOException {
handshake();
return this.connection.getInputStream();
}
@SuppressWarnings ( "resource" )
@Override
public OutputStream getOutputStream () throws IOException {
connect();
OutputStream output = this.connection.getOutputStream();
this.cachedOutput = new ByteArrayOutputStream();
return new CacheStream(output, this.cachedOutput);
}
@Override
public String toString () {
return this.connection.toString();
}
@Override
public void setDoInput ( boolean doInput ) {
this.connection.setDoInput(doInput);
this.doInput = doInput;
}
@Override
public boolean getDoInput () {
return this.connection.getDoInput();
}
@Override
public void setDoOutput ( boolean doOutput ) {
this.connection.setDoOutput(doOutput);
this.doOutput = doOutput;
}
@Override
public boolean getDoOutput () {
return this.connection.getDoOutput();
}
@Override
public void setAllowUserInteraction ( boolean allowUserInteraction ) {
this.connection.setAllowUserInteraction(allowUserInteraction);
this.allowUserInteraction = allowUserInteraction;
}
@Override
public boolean getAllowUserInteraction () {
return this.connection.getAllowUserInteraction();
}
@Override
public void setUseCaches ( boolean useCaches ) {
this.connection.setUseCaches(useCaches);
this.useCaches = useCaches;
}
@Override
public boolean getUseCaches () {
return this.connection.getUseCaches();
}
@Override
public void setIfModifiedSince ( long ifModifiedSince ) {
this.connection.setIfModifiedSince(ifModifiedSince);
this.ifModifiedSince = ifModifiedSince;
}
@Override
public long getIfModifiedSince () {
return this.connection.getIfModifiedSince();
}
@Override
public boolean getDefaultUseCaches () {
return this.connection.getDefaultUseCaches();
}
@Override
public void setDefaultUseCaches ( boolean defaultUseCaches ) {
this.connection.setDefaultUseCaches(defaultUseCaches);
}
@Override
public int getConnectTimeout () {
return this.connection.getConnectTimeout();
}
@Override
public void setConnectTimeout ( int timeout ) {
this.connection.setConnectTimeout(timeout);
}
@Override
public int getReadTimeout () {
return this.connection.getReadTimeout();
}
@Override
public void setReadTimeout ( int timeout ) {
this.connection.setReadTimeout(timeout);
}
@Override
public void setRequestProperty ( String key, String value ) {
if ( key == null )
throw new NullPointerException();
List values = new ArrayList<>();
values.add(value);
boolean found = false;
for ( Entry> entry : this.requestProperties.entrySet() ) {
if ( key.equalsIgnoreCase(entry.getKey()) ) {
entry.setValue(values);
found = true;
break;
}
}
if ( !found )
this.requestProperties.put(key, values);
this.connection.setRequestProperty(key, value);
}
@Override
public void addRequestProperty ( String key, String value ) {
if ( key == null )
throw new NullPointerException();
List values = null;
for ( Entry> entry : this.requestProperties.entrySet() ) {
if ( key.equalsIgnoreCase(entry.getKey()) ) {
values = entry.getValue();
values.add(value);
break;
}
}
if ( values == null ) {
values = new ArrayList<>();
values.add(value);
this.requestProperties.put(key, values);
}
// 1.3-compatible.
StringBuffer buffer = new StringBuffer();
Iterator propertyValues = values.iterator();
while ( propertyValues.hasNext() ) {
buffer.append(propertyValues.next());
if ( propertyValues.hasNext() ) {
buffer.append(", ");
}
}
this.connection.setRequestProperty(key, buffer.toString());
}
@Override
public String getRequestProperty ( String key ) {
return this.connection.getRequestProperty(key);
}
@Override
public Map> getRequestProperties () {
Map> map = new HashMap<>();
for ( Entry> entry : this.requestProperties.entrySet() ) {
map.put(entry.getKey(), Collections.unmodifiableList(entry.getValue()));
}
return Collections.unmodifiableMap(map);
}
@Override
public void setInstanceFollowRedirects ( boolean instanceFollowRedirects ) {
this.connection.setInstanceFollowRedirects(instanceFollowRedirects);
}
@Override
public boolean getInstanceFollowRedirects () {
return this.connection.getInstanceFollowRedirects();
}
@Override
public void setRequestMethod ( String requestMethod ) throws ProtocolException {
this.connection.setRequestMethod(requestMethod);
this.method = requestMethod;
}
@Override
public String getRequestMethod () {
return this.connection.getRequestMethod();
}
@Override
public int getResponseCode () throws IOException {
handshake();
return this.connection.getResponseCode();
}
@Override
public String getResponseMessage () throws IOException {
handshake();
return this.connection.getResponseMessage();
}
@Override
public void disconnect () {
this.connection.disconnect();
this.handshakeComplete = false;
this.connected = false;
}
@Override
public boolean usingProxy () {
return this.connection.usingProxy();
}
@Override
public InputStream getErrorStream () {
handshake();
return this.connection.getErrorStream();
}
private int parseResponseCode () throws IOException {
try {
String response = this.connection.getHeaderField(0);
int index = response.indexOf(' ');
while ( response.charAt(index) == ' ' )
index++;
return Integer.parseInt(response.substring(index, index + 3));
}
catch ( Exception ex ) {
throw new IOException(ex.getMessage());
}
}
private void doHandshake () throws IOException, GeneralSecurityException {
connect();
try {
int response = parseResponseCode();
if ( response != HTTP_UNAUTHORIZED && response != HTTP_PROXY_AUTH ) {
return;
}
NtlmMessage type1 = attemptNegotiation(response);
if ( type1 == null )
return; // no NTLM
int attempt = 0;
while ( attempt < MAX_REDIRECTS ) {
this.connection.setRequestProperty(this.authProperty, this.authMethod + ' ' + Base64.toBase64String(type1.toByteArray()));
this.connection.connect(); // send type 1
response = parseResponseCode();
if ( response != HTTP_UNAUTHORIZED && response != HTTP_PROXY_AUTH ) {
return;
}
NtlmMessage type3 = attemptNegotiation(response);
if ( type3 == null )
return;
this.connection.setRequestProperty(this.authProperty, this.authMethod + ' ' + Base64.toBase64String(type3.toByteArray()));
this.connection.connect(); // send type 3
if ( this.cachedOutput != null && this.doOutput ) {
@SuppressWarnings ( "resource" )
OutputStream output = this.connection.getOutputStream();
this.cachedOutput.writeTo(output);
output.flush();
}
response = parseResponseCode();
if ( response != HTTP_UNAUTHORIZED && response != HTTP_PROXY_AUTH ) {
return;
}
attempt++;
if ( this.allowUserInteraction && attempt < MAX_REDIRECTS ) {
reconnect();
}
else {
break;
}
}
throw new IOException("Unable to negotiate NTLM authentication.");
}
finally {
this.cachedOutput = null;
}
}
private NtlmMessage attemptNegotiation ( int response ) throws IOException, GeneralSecurityException {
this.authProperty = null;
this.authMethod = null;
try ( InputStream errorStream = this.connection.getErrorStream() ) {
if ( errorStream != null && errorStream.available() != 0 ) {
byte[] buf = new byte[1024];
while ( ( errorStream.read(buf, 0, 1024) ) != -1 );
}
String authHeader;
if ( response == HTTP_UNAUTHORIZED ) {
authHeader = "WWW-Authenticate";
this.authProperty = "Authorization";
}
else {
authHeader = "Proxy-Authenticate";
this.authProperty = "Proxy-Authorization";
}
String authorization = null;
List methods = getHeaderFields0().get(authHeader);
if ( methods == null )
return null;
Iterator iterator = methods.iterator();
while ( iterator.hasNext() ) {
String currentAuthMethod = iterator.next();
if ( currentAuthMethod.startsWith("NTLM") ) {
if ( currentAuthMethod.length() == 4 ) {
this.authMethod = "NTLM";
break;
}
if ( currentAuthMethod.indexOf(' ') != 4 )
continue;
this.authMethod = "NTLM";
authorization = currentAuthMethod.substring(5).trim();
break;
}
else if ( currentAuthMethod.startsWith("Negotiate") ) {
if ( currentAuthMethod.length() == 9 ) {
this.authMethod = "Negotiate";
break;
}
if ( currentAuthMethod.indexOf(' ') != 9 )
continue;
this.authMethod = "Negotiate";
authorization = currentAuthMethod.substring(10).trim();
break;
}
}
if ( this.authMethod == null )
return null;
NtlmMessage message = ( authorization != null ) ? new Type2Message(Base64.decode(authorization)) : null;
reconnect();
if ( message == null ) {
message = new Type1Message(this.transportContext);
if ( this.transportContext.getConfig().getLanManCompatibility() > 2 ) {
message.setFlag(NtlmFlags.NTLMSSP_REQUEST_TARGET, true);
}
}
else if ( this.transportContext.getCredentials() instanceof NtlmPasswordAuthentication ) {
NtlmPasswordAuthentication npa = (NtlmPasswordAuthentication) this.transportContext.getCredentials();
String domain = npa.getUserDomain();
String user = !npa.isAnonymous() ? npa.getUsername() : null;
String password = npa.getPassword();
String userInfo = this.url.getUserInfo();
if ( userInfo != null ) {
userInfo = URLDecoder.decode(userInfo, "UTF-8");
int index = userInfo.indexOf(':');
user = ( index != -1 ) ? userInfo.substring(0, index) : userInfo;
if ( index != -1 )
password = userInfo.substring(index + 1);
index = user.indexOf('\\');
if ( index == -1 )
index = user.indexOf('/');
domain = ( index != -1 ) ? user.substring(0, index) : domain;
user = ( index != -1 ) ? user.substring(index + 1) : user;
}
if ( user == null ) {
if ( !this.allowUserInteraction )
return null;
try {
URL u = getURL();
String protocol = u.getProtocol();
int port = u.getPort();
if ( port == -1 ) {
port = "https".equalsIgnoreCase(protocol) ? 443 : 80;
}
PasswordAuthentication auth = Authenticator.requestPasswordAuthentication(null, port, protocol, "", this.authMethod);
if ( auth == null )
return null;
user = auth.getUserName();
password = new String(auth.getPassword());
}
catch ( Exception ex ) {
log.debug("Interactive authentication failed", ex);
}
}
Type2Message type2 = (Type2Message) message;
message = new Type3Message(
this.transportContext,
type2,
null,
password,
domain,
user,
this.transportContext.getNameServiceClient().getLocalHost().getHostName(),
0);
}
return message;
}
}
private void reconnect () throws IOException {
int readTimeout = getReadTimeout();
int connectTimeout = getConnectTimeout();
HostnameVerifier hv = null;
SSLSocketFactory ssf = null;
if ( this.connection instanceof HttpsURLConnection ) {
hv = ( (HttpsURLConnection) this.connection ).getHostnameVerifier();
ssf = ( (HttpsURLConnection) this.connection ).getSSLSocketFactory();
}
this.connection = (HttpURLConnection) this.connection.getURL().openConnection();
if ( this.connection instanceof HttpsURLConnection ) {
if ( hv != null ) {
( (HttpsURLConnection) this.connection ).setHostnameVerifier(hv);
}
if ( ssf != null ) {
( (HttpsURLConnection) this.connection ).setSSLSocketFactory(ssf);
}
}
this.connection.setRequestMethod(this.method);
this.headerFields = null;
for ( Entry> property : this.requestProperties.entrySet() ) {
String key = property.getKey();
StringBuffer value = new StringBuffer();
Iterator values = property.getValue().iterator();
while ( values.hasNext() ) {
value.append(values.next());
if ( values.hasNext() )
value.append(", ");
}
this.connection.setRequestProperty(key, value.toString());
}
this.connection.setAllowUserInteraction(this.allowUserInteraction);
this.connection.setDoInput(this.doInput);
this.connection.setDoOutput(this.doOutput);
this.connection.setIfModifiedSince(this.ifModifiedSince);
this.connection.setInstanceFollowRedirects(this.instanceFollowRedirects);
this.connection.setUseCaches(this.useCaches);
this.connection.setReadTimeout(readTimeout);
this.connection.setConnectTimeout(connectTimeout);
}
private static class CacheStream extends OutputStream {
private final OutputStream stream;
private final OutputStream collector;
public CacheStream ( OutputStream stream, OutputStream collector ) {
this.stream = stream;
this.collector = collector;
}
@Override
public void close () throws IOException {
this.stream.close();
this.collector.close();
}
@Override
public void flush () throws IOException {
this.stream.flush();
this.collector.flush();
}
@Override
public void write ( byte[] b ) throws IOException {
this.stream.write(b);
this.collector.write(b);
}
@Override
public void write ( byte[] b, int off, int len ) throws IOException {
this.stream.write(b, off, len);
this.collector.write(b, off, len);
}
@Override
public void write ( int b ) throws IOException {
this.stream.write(b);
this.collector.write(b);
}
}
}
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