You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
205 lines
8.7 KiB
205 lines
8.7 KiB
/*
|
|
* ============================================================================
|
|
* The Apache Software License, Version 1.1
|
|
* ============================================================================
|
|
*
|
|
* Copyright (C) 2002 The Apache Software Foundation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modifica-
|
|
* tion, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The end-user documentation included with the redistribution, if any, must
|
|
* include the following acknowledgment: "This product includes software
|
|
* developed by SuperBonBon Industries (http://www.sbbi.net/)."
|
|
* Alternately, this acknowledgment may appear in the software itself, if
|
|
* and wherever such third-party acknowledgments normally appear.
|
|
*
|
|
* 4. The names "UPNPLib" and "SuperBonBon Industries" must not be
|
|
* used to endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* info@sbbi.net.
|
|
*
|
|
* 5. Products derived from this software may not be called
|
|
* "SuperBonBon Industries", nor may "SBBI" appear in their name,
|
|
* without prior written permission of SuperBonBon Industries.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT,INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
|
|
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* This software consists of voluntary contributions made by many individuals
|
|
* on behalf of SuperBonBon Industries. For more information on
|
|
* SuperBonBon Industries, please see <http://www.sbbi.net/>.
|
|
*/
|
|
package net.yacy.upnp.messages;
|
|
|
|
import org.xml.sax.*;
|
|
import javax.xml.parsers.*;
|
|
import java.io.*;
|
|
import java.net.HttpURLConnection;
|
|
import java.net.URL;
|
|
|
|
import org.apache.commons.logging.Log;
|
|
import org.apache.commons.logging.LogFactory;
|
|
|
|
import net.yacy.upnp.services.*;
|
|
|
|
/**
|
|
* This class is used to create state variable messages to
|
|
* comminicate with the device
|
|
* @author <a href="mailto:superbonbon@sbbi.net">SuperBonBon</a>
|
|
* @version 1.0
|
|
*/
|
|
|
|
public class StateVariableMessage {
|
|
|
|
private final static Log log = LogFactory.getLog( StateVariableMessage.class );
|
|
|
|
private UPNPService service;
|
|
private ServiceStateVariable serviceStateVar;
|
|
|
|
protected StateVariableMessage( UPNPService service, ServiceStateVariable serviceStateVar ) {
|
|
this.service = service;
|
|
this.serviceStateVar = serviceStateVar;
|
|
}
|
|
|
|
/**
|
|
* Executes the state variable query and retuns the UPNP device response, according to the UPNP specs,
|
|
* this method could take up to 30 secs to process ( time allowed for a device to respond to a request )
|
|
* @return a state variable response object containing the variable value
|
|
* @throws IOException if some IOException occurs during message send and reception process
|
|
* @throws UPNPResponseException if an UPNP error message is returned from the server
|
|
* or if some parsing exception occurs ( detailErrorCode = 899, detailErrorDescription = SAXException message )
|
|
*/
|
|
public StateVariableResponse service() throws IOException, UPNPResponseException {
|
|
StateVariableResponse rtrVal = null;
|
|
UPNPResponseException upnpEx = null;
|
|
IOException ioEx = null;
|
|
StringBuffer body = new StringBuffer( 256 );
|
|
|
|
body.append( "<?xml version=\"1.0\"?>\r\n" );
|
|
body.append( "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"" );
|
|
body.append( " s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">" );
|
|
body.append( "<s:Body>" );
|
|
body.append( "<u:QueryStateVariable xmlns:u=\"urn:schemas-upnp-org:control-1-0\">" );
|
|
body.append( "<u:varName>" ).append( serviceStateVar.getName() ).append( "</u:varName>" );
|
|
body.append( "</u:QueryStateVariable>" );
|
|
body.append( "</s:Body>" );
|
|
body.append( "</s:Envelope>" );
|
|
|
|
if ( log.isDebugEnabled() ) log.debug( "POST prepared for URL " + service.getControlURL() );
|
|
URL url = new URL( service.getControlURL().toString() );
|
|
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
|
|
conn.setDoInput( true );
|
|
conn.setDoOutput( true );
|
|
conn.setUseCaches( false );
|
|
conn.setRequestMethod( "POST" );
|
|
HttpURLConnection.setFollowRedirects( false );
|
|
//conn.setConnectTimeout( 30000 );
|
|
conn.setRequestProperty( "HOST", url.getHost() + ":" + url.getPort() );
|
|
conn.setRequestProperty( "SOAPACTION", "\"urn:schemas-upnp-org:control-1-0#QueryStateVariable\"" );
|
|
conn.setRequestProperty( "CONTENT-TYPE", "text/xml; charset=\"utf-8\"" );
|
|
conn.setRequestProperty( "CONTENT-LENGTH", Integer.toString( body.length() ) );
|
|
OutputStream out = conn.getOutputStream();
|
|
out.write( body.toString().getBytes() );
|
|
out.flush();
|
|
conn.connect();
|
|
InputStream input = null;
|
|
|
|
if ( log.isDebugEnabled() ) log.debug( "executing query :\n" + body );
|
|
try {
|
|
input = conn.getInputStream();
|
|
} catch ( IOException ex ) {
|
|
// java can throw an exception if he error code is 500 or 404 or something else than 200
|
|
// but the device sends 500 error message with content that is required
|
|
// this content is accessible with the getErrorStream
|
|
input = conn.getErrorStream();
|
|
}
|
|
|
|
if ( input != null ) {
|
|
int response = conn.getResponseCode();
|
|
String responseBody = getResponseBody( input );
|
|
if ( log.isDebugEnabled() ) log.debug( "received response :\n" + responseBody );
|
|
SAXParserFactory saxParFact = SAXParserFactory.newInstance();
|
|
saxParFact.setValidating( false );
|
|
saxParFact.setNamespaceAware( true );
|
|
StateVariableResponseParser msgParser = new StateVariableResponseParser( serviceStateVar );
|
|
StringReader stringReader = new StringReader( responseBody );
|
|
InputSource src = new InputSource( stringReader );
|
|
try {
|
|
SAXParser parser = saxParFact.newSAXParser();
|
|
parser.parse( src, msgParser );
|
|
} catch ( ParserConfigurationException confEx ) {
|
|
// should never happen
|
|
// we throw a runtimeException to notify the env problem
|
|
throw new RuntimeException( "ParserConfigurationException during SAX parser creation, please check your env settings:" + confEx.getMessage() );
|
|
} catch ( SAXException saxEx ) {
|
|
// kind of tricky but better than nothing..
|
|
upnpEx = new UPNPResponseException( 899, saxEx.getMessage() );
|
|
} finally {
|
|
try {
|
|
input.close();
|
|
} catch ( IOException ex ) {
|
|
// ignoring
|
|
}
|
|
}
|
|
if ( upnpEx == null ) {
|
|
if ( response == HttpURLConnection.HTTP_OK ) {
|
|
rtrVal = msgParser.getStateVariableResponse();
|
|
} else if ( response == HttpURLConnection.HTTP_INTERNAL_ERROR ) {
|
|
upnpEx = msgParser.getUPNPResponseException();
|
|
} else {
|
|
ioEx = new IOException( "Unexpected server HTTP response:" + response );
|
|
}
|
|
}
|
|
}
|
|
try {
|
|
out.close();
|
|
} catch ( IOException ex ) {
|
|
// ignore
|
|
}
|
|
conn.disconnect();
|
|
if ( upnpEx != null ) {
|
|
throw upnpEx;
|
|
}
|
|
if ( rtrVal == null && ioEx == null ) {
|
|
ioEx = new IOException( "Unable to receive a response from the UPNP device" );
|
|
}
|
|
if ( ioEx != null ) {
|
|
throw ioEx;
|
|
}
|
|
return rtrVal;
|
|
}
|
|
|
|
private String getResponseBody( InputStream in ) throws IOException {
|
|
byte[] buffer = new byte[256];
|
|
int readen = 0;
|
|
StringBuilder content = new StringBuilder( 256 );
|
|
while ( ( readen = in.read( buffer ) ) != -1 ) {
|
|
content.append( new String( buffer, 0 , readen ) );
|
|
}
|
|
// some devices add \0 chars at XML message end
|
|
// which causes XML parsing errors...
|
|
int len = content.length();
|
|
while ( content.charAt( len-1 ) == '\0' ) {
|
|
len--;
|
|
content.setLength( len );
|
|
}
|
|
return content.toString().trim();
|
|
}
|
|
}
|