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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cms.servlet.connector;
import com.netscape.cms.servlet.common.*;
import com.netscape.cms.servlet.base.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import com.netscape.certsrv.common.*;
import com.netscape.certsrv.request.*;
import com.netscape.certsrv.base.*;
import com.netscape.certsrv.authority.*;
import com.netscape.certsrv.apps.CMS;
import com.netscape.certsrv.authentication.*;
import com.netscape.certsrv.authorization.*;
/**
* TokenKeyRecoveryServlet
* handles "key recovery service" requests from the
* netkey TPS
*
* @author Christina Fu (cfu)
* @version $Revision: 14561 $, $Date: 2007-05-01 10:28:56 -0700 (Tue, 01 May 2007) $
*/
//XXX add auditing later
public class TokenKeyRecoveryServlet extends CMSServlet {
private final static String INFO = "TokenKeyRecoveryServlet";
public final static String PROP_AUTHORITY = "authority";
protected ServletConfig mConfig = null;
protected IAuthority mAuthority = null;
public static int ERROR = 1;
IPrettyPrintFormat pp = CMS.getPrettyPrintFormat(":");
protected IAuthSubsystem mAuthSubsystem = null;
/**
* Constructs TokenKeyRecovery servlet.
*
*/
public TokenKeyRecoveryServlet() {
super();
}
public void init(ServletConfig config) throws ServletException {
super.init(config);
mConfig = config;
String authority = config.getInitParameter(PROP_AUTHORITY);
if (authority != null)
mAuthority = (IAuthority)
CMS.getSubsystem(authority);
mAuthSubsystem = (IAuthSubsystem) CMS.getSubsystem(CMS.SUBSYSTEM_AUTH);
}
/**
* Returns serlvet information.
*
* @return name of this servlet
*/
public String getServletInfo() {
return INFO;
}
/**
* Process the HTTP request.
*
* @param s The URL to decode
*/
protected String URLdecode(String s) {
if (s == null)
return null;
ByteArrayOutputStream out = new ByteArrayOutputStream(s.length());
for (int i = 0; i < s.length(); i++) {
int c = (int) s.charAt(i);
if (c == '+') {
out.write(' ');
} else if (c == '%') {
int c1 = Character.digit(s.charAt(++i), 16);
int c2 = Character.digit(s.charAt(++i), 16);
out.write((char) (c1 * 16 + c2));
} else {
out.write(c);
}
} // end for
return out.toString();
}
/*
* processTokenKeyRecovery
* handles netkey key recovery requests
* input params are:
* CUID - the CUID of the old token where the keys/certs were initially for
* userid - the userid that belongs to both the old token and the new token
* drm_trans_desKey - the des key generated for the NEW token
* wrapped with DRM transport key
* cert - the user cert corresponding to the key to be recovered
*
* operations:
* 1. unwrap des key with transport key, then url decode it
* 2. retrieve user private key
* 3. wrap user priv key with des key
* 4. send the following to RA:
* * des key wrapped(user priv key)
* (note: RA should have kek-wrapped des key from TKS)
* * recovery blob (used for recovery)
*
* output params are:
* status=value0
* publicKey=value1
* desKey-wrapped-userPrivateKey=value2
*/
private void processTokenKeyRecovery(HttpServletRequest req,
HttpServletResponse resp) throws EBaseException
{
IRequestQueue queue = mAuthority.getRequestQueue();
IRequest thisreq = null;
// IConfigStore sconfig = CMS.getConfigStore();
boolean missingParam = false;
String status = "0";
CMS.debug("processTokenKeyRecovery begins:");
String rCUID = req.getParameter("CUID");
String rUserid = req.getParameter("userid");
String rdesKeyString = req.getParameter("drm_trans_desKey");
String rCert = req.getParameter("cert");
if ((rCUID == null) || (rCUID.equals(""))) {
CMS.debug("TokenKeyRecoveryServlet: processTokenKeyRecovery(): missing request parameter: CUID");
missingParam = true;
}
if ((rUserid == null) || (rUserid.equals(""))) {
CMS.debug("TokenKeyRecoveryServlet: processTokenKeyRecovery(): missing request parameter: userid");
missingParam = true;
}
if ((rdesKeyString == null) ||
(rdesKeyString.equals(""))) {
CMS.debug("TokenKeyRecoveryServlet: processTokenKeyRecovery(): missing request parameter: DRM-transportKey-wrapped des key");
missingParam = true;
}
if ((rCert == null) || (rCert.equals(""))) {
CMS.debug("TokenKeyRecoveryServlet: processTokenKeyRecovery(): missing request parameter: cert");
missingParam = true;
}
String selectedToken = null;
if (!missingParam) {
thisreq = queue.newRequest(IRequest.NETKEY_KEYRECOVERY_REQUEST);
thisreq.setExtData(IRequest.REQUESTOR_TYPE, IRequest.REQUESTOR_NETKEY_RA);
thisreq.setExtData(IRequest.NETKEY_ATTR_CUID, rCUID);
thisreq.setExtData(IRequest.NETKEY_ATTR_USERID, rUserid);
thisreq.setExtData(IRequest.NETKEY_ATTR_DRMTRANS_DES_KEY, rdesKeyString);
thisreq.setExtData(IRequest.NETKEY_ATTR_USER_CERT, rCert);
//XXX auto process for netkey
queue.processRequest( thisreq );
// IService svc = (IService) new TokenKeyRecoveryService(kra);
// svc.serviceRequest(thisreq);
Integer result = thisreq.getExtDataInInteger(IRequest.RESULT);
if (result != null) {
// sighs! tps thinks 0 is good, and drm thinks 1 is good
if (result.intValue() == 1)
status ="0";
else
status = result.toString();
} else
status = "7";
CMS.debug("processTokenKeyRecovery finished");
} // ! missingParam
String value = "";
resp.setContentType("text/html");
String outputString = "";
String wrappedPrivKeyString = "";
String publicKeyString = "";
/* if is RECOVERY_PROTOTYPE
String recoveryBlobString = "";
IKeyRecord kr = (IKeyRecord) thisreq.get("keyRecord");
byte publicKey_b[] = kr.getPublicKeyData();
BigInteger serialNo = kr.getSerialNumber();
String serialNumberString =
com.netscape.cmsutil.util.Utils.SpecialEncode(serialNo.toByteArray());
recoveryBlobString = (String)
thisreq.get("recoveryBlob");
*/
if( thisreq == null ) {
CMS.debug( "TokenKeyRecoveryServlet::processTokenKeyRecovery() - "
+ "thisreq is null!" );
throw new EBaseException( "thisreq is null" );
}
publicKeyString = thisreq.getExtDataInString("public_key");
wrappedPrivKeyString = thisreq.getExtDataInString("wrappedUserPrivate");
/*
if (selectedToken == null)
status = "4";
*/
if (!status.equals("0"))
value = "status="+status;
else {
StringBuffer sb = new StringBuffer();
sb.append("status=0&");
sb.append("wrapped_priv_key=");
sb.append(wrappedPrivKeyString);
sb.append("&public_key=");
sb.append(publicKeyString);
value = sb.toString();
}
CMS.debug("ProcessTokenKeyRecovery:outputString.encode " +value);
try{
resp.setContentLength(value.length());
CMS.debug("TokenKeyRecoveryServlet:outputString.length " +value.length());
OutputStream ooss = resp.getOutputStream();
ooss.write(value.getBytes());
ooss.flush();
mRenderResult = false;
} catch (IOException e) {
CMS.debug("TokenKeyRecoveryServlet: " + e.toString());
}
}
/*
* For TokenKeyRecovery
*
* input:
* CUID=value0
* trans-wrapped-desKey=value1
*
* output:
* status=value0
* publicKey=value1
* desKey-wrapped-userPrivateKey=value2
* proofOfArchival=value3
*/
public void process(CMSRequest cmsReq) throws EBaseException {
HttpServletRequest req = cmsReq.getHttpReq();
HttpServletResponse resp = cmsReq.getHttpResp();
IAuthToken authToken = authenticate(cmsReq);
AuthzToken authzToken = null;
try {
authzToken = authorize(mAclMethod, authToken,
mAuthzResourceName, "submit");
} catch (Exception e) {
}
if (authzToken == null) {
try{
resp.setContentType("text/html");
String value = "unauthorized=";
CMS.debug("TokenKeyRecoveryServlet: Unauthorized");
resp.setContentLength(value.length());
OutputStream ooss = resp.getOutputStream();
ooss.write(value.getBytes());
ooss.flush();
mRenderResult = false;
}catch (Exception e) {
CMS.debug("TokenKeyRecoveryServlet: " + e.toString());
}
cmsReq.setStatus(CMSRequest.UNAUTHORIZED);
return;
}
// begin Netkey serverSideKeyGen and archival
CMS.debug("TokenKeyRecoveryServlet: processTokenKeyRecovery would be called");
processTokenKeyRecovery(req, resp);
return;
// end Netkey functions
}
/** XXX remember to check peer SSL cert and get RA id later
*
* Serves HTTP admin request.
*
* @param req HTTP request
* @param resp HTTP response
*/
public void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String scope = req.getParameter(Constants.OP_SCOPE);
String op = req.getParameter(Constants.OP_TYPE);
super.service(req, resp);
}
}
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