/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.platform.web.servlet;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.platform.api.engine.IActionSequenceResource;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.repository2.unified.RepositoryFilePermission;
import org.pentaho.platform.engine.core.system.PentahoSystem;
import org.pentaho.platform.engine.services.actionsequence.ActionSequenceResource;
import org.pentaho.platform.util.StringUtil;
import org.pentaho.platform.util.messages.LocaleHelper;
import org.pentaho.platform.web.servlet.messages.Messages;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class GetResource extends ServletBase {
private static final long serialVersionUID = 1L;
@Override
protected void doGet( final HttpServletRequest arg0, final HttpServletResponse arg1 ) throws ServletException,
IOException {
doPost( arg0, arg1 );
}
private static final Log logger = LogFactory.getLog( GetResource.class );
@Override
public Log getLogger() {
return GetResource.logger;
}
@Override
protected void doPost( final HttpServletRequest request, final HttpServletResponse response )
throws ServletException, IOException {
// TODO perform any authorization here...
// TODO support caching
PentahoSystem.systemEntryPoint();
try {
IPentahoSession session = getPentahoSession( request );
String resource = request.getParameter( "resource" ); //$NON-NLS-1$
if ( ( resource == null ) || StringUtil.doesPathContainParentPathSegment( resource ) ) {
error( Messages.getInstance().getErrorString( "GetResource.ERROR_0001_RESOURCE_PARAMETER_MISSING" ) ); //$NON-NLS-1$
response.setStatus( HttpServletResponse.SC_SERVICE_UNAVAILABLE );
return;
}
String resLower = resource.toLowerCase();
String resourcePath;
if ( resLower.endsWith( ".xsl" ) ) { //$NON-NLS-1$
resourcePath = "system/custom/xsl/" + resource; //$NON-NLS-1$
} else if ( resLower.endsWith( ".mondrian.xml" ) ) { //$NON-NLS-1$
resourcePath = resource;
} else if ( resLower.endsWith( ".jpg" ) || resLower.endsWith( ".jpeg" )
|| resLower.endsWith( ".gif" ) || resLower.endsWith(
".png" ) || resLower.endsWith( ".bmp" ) ) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
resourcePath = resource;
} else if ( resLower.endsWith( ".properties" ) ) { //$NON-NLS-1$
resourcePath = resource;
} else if ( resLower.endsWith( ".jar" ) ) { //$NON-NLS-1$
resourcePath = resource;
} else {
error( Messages.getInstance().getErrorString( "GetResource.ERROR_0002_INVALID_FILE", resource ) ); //$NON-NLS-1$
response.setStatus( HttpServletResponse.SC_SERVICE_UNAVAILABLE );
return;
}
IActionSequenceResource asqr =
new ActionSequenceResource( "", IActionSequenceResource.SOLUTION_FILE_RESOURCE, "", //$NON-NLS-1$ //$NON-NLS-2$
resourcePath );
InputStream in = asqr.getInputStream( RepositoryFilePermission.READ, LocaleHelper.getLocale() );
if ( in == null ) {
error( Messages.getInstance().getErrorString( "GetResource.ERROR_0003_RESOURCE_MISSING", resourcePath ) ); //$NON-NLS-1$
response.setStatus( HttpServletResponse.SC_SERVICE_UNAVAILABLE );
return;
}
String mimeType = getServletContext().getMimeType( resourcePath );
String resourceName = resourcePath;
if ( resourcePath.indexOf( "/" ) != -1 ) { //$NON-NLS-1$
resourceName = resourcePath.substring( resourcePath.lastIndexOf( "/" ) + 1 ); //$NON-NLS-1$
}
response.setHeader( "content-disposition", "attachment;filename=" + resourceName ); //$NON-NLS-1$ //$NON-NLS-2$
if ( ( null == mimeType ) || ( mimeType.length() <= 0 ) ) {
// Hard coded to PNG because BIRT does not give us a mime type at
// all...
response.setContentType( "image/png" ); //$NON-NLS-1$
} else {
response.setContentType( mimeType );
}
response.setCharacterEncoding( LocaleHelper.getSystemEncoding() );
response.setHeader( "expires", "0" ); //$NON-NLS-1$ //$NON-NLS-2$
// Open the input and output streams
OutputStream out = response.getOutputStream();
try {
// Copy the contents of the file to the output stream
byte[] buf = new byte[1024];
int count = 0;
int totalBytes = 0;
while ( ( count = in.read( buf ) ) >= 0 ) {
out.write( buf, 0, count );
totalBytes += count;
}
response.setContentLength( totalBytes );
} finally {
in.close();
out.close();
}
} finally {
PentahoSystem.systemExitPoint();
}
}
}