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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.aaf
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
* * ============LICENSE_END====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package com.att.authz.cm.service;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import com.att.authz.cm.api.API_Cert;
import com.att.authz.cm.ca.CA;
import com.att.authz.cm.cert.BCFactory;
import com.att.authz.cm.cert.CSRMeta;
import com.att.authz.cm.data.CertDrop;
import com.att.authz.cm.data.CertRenew;
import com.att.authz.cm.data.CertReq;
import com.att.authz.cm.data.CertResp;
import com.att.authz.cm.validation.Validator;
import com.att.authz.env.AuthzTrans;
import com.att.authz.layer.Result;
import com.att.authz.org.Organization;
import com.att.authz.org.Organization.Identity;
import com.att.authz.org.OrganizationException;
import com.att.cadi.Hash;
import com.att.cadi.aaf.AAFPermission;
import com.att.cadi.aaf.v2_0.AAFCon;
import com.att.cadi.cm.Factory;
import com.att.dao.CassAccess;
import com.att.dao.DAO;
import com.att.dao.aaf.cass.ArtiDAO;
import com.att.dao.aaf.cass.CacheInfoDAO;
import com.att.dao.aaf.cass.CertDAO;
import com.att.dao.aaf.cass.CredDAO;
import com.att.dao.aaf.cass.HistoryDAO;
import com.att.dao.aaf.cass.Status;
import com.att.dao.aaf.hl.Question;
import com.att.inno.env.APIException;
import com.att.inno.env.Slot;
import com.att.inno.env.util.Chrono;
import com.datastax.driver.core.Cluster;
public class CMService {
// If we add more CAs, may want to parameterize
private static final int STD_RENEWAL = 30;
private static final int MAX_RENEWAL = 60;
private static final int MIN_RENEWAL = 10;
public static final String REQUEST = "request";
public static final String RENEW = "renew";
public static final String DROP = "drop";
public static final String SANS = "san";
private static final String[] NO_NOTES = new String[0];
private Slot sCertAuth;
private final CertDAO certDAO;
private final CredDAO credDAO;
private final ArtiDAO artiDAO;
private DAO<AuthzTrans, ?>[] daos;
@SuppressWarnings("unchecked")
public CMService(AuthzTrans trans, CertManAPI certman) throws APIException, IOException {
sCertAuth = certman.env.slot(API_Cert.CERT_AUTH);
Cluster cluster;
try {
cluster = com.att.dao.CassAccess.cluster(certman.env,null);
} catch (IOException e) {
throw new APIException(e);
}
// jg 4/2015 SessionFilter unneeded... DataStax already deals with Multithreading well
HistoryDAO hd = new HistoryDAO(trans, cluster, CassAccess.KEYSPACE);
CacheInfoDAO cid = new CacheInfoDAO(trans, hd);
certDAO = new CertDAO(trans, hd, cid);
credDAO = new CredDAO(trans, hd, cid);
artiDAO = new ArtiDAO(trans, hd, cid);
daos =(DAO<AuthzTrans, ?>[]) new DAO<?,?>[] {
hd,cid,certDAO,credDAO,artiDAO
};
// Setup Shutdown Hooks for Cluster and Pooled Sessions
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
for(DAO<AuthzTrans,?> dao : daos) {
dao.close(trans);
}
// sessionFilter.destroy();
cluster.close();
}
});
}
public Result<CertResp> requestCert(AuthzTrans trans,Result<CertReq> req) {
if(req.isOK()) {
CA ca = trans.get(sCertAuth, null);
if(ca==null) {
return Result.err(Result.err(Result.ERR_BadData, "Invalid Cert Authority requested"));
}
// Allow only AAF CA without special permission
if(!ca.getName().equals("aaf") && !trans.fish( new AAFPermission(ca.getPermType(), ca.getName(), REQUEST))) {
return Result.err(Status.ERR_Denied, "'%s' does not have permission to request Certificates from Certificate Authority '%s'",
trans.user(),ca.getName());
}
List<String> notes = null;
List<String> fqdns;
String email = null;
try {
Organization org = trans.org();
// Policy 1: Requests are only by Pre-Authorized Configurations
ArtiDAO.Data add = null;
try {
for(InetAddress ia : InetAddress.getAllByName(trans.ip())) {
Result<List<ArtiDAO.Data>> ra = artiDAO.read(trans, req.value.mechid,ia.getHostName());
if(ra.isOKhasData()) {
add = ra.value.get(0);
break;
}
}
} catch (UnknownHostException e1) {
return Result.err(Result.ERR_BadData,"There is no host for %s",trans.ip());
}
if(add==null) {
return Result.err(Result.ERR_BadData,"There is no configuration for %s",req.value.mechid);
}
// Policy 2: If Config marked as Expired, do not create or renew
Date now = new Date();
if(add.expires!=null && now.after(add.expires)) {
return Result.err(Result.ERR_Policy,"Configuration for %s %s is expired %s",add.mechid,add.machine,Chrono.dateFmt.format(add.expires));
}
// Policy 3: MechID must be current
Identity muser = org.getIdentity(trans, add.mechid);
if(muser == null) {
return Result.err(Result.ERR_Policy,"MechID must exist in %s",org.getName());
}
// Policy 4: Sponsor must be current
Identity ouser = muser.owner();
if(ouser==null) {
return Result.err(Result.ERR_Policy,"%s does not have a current sponsor at %s",add.mechid,org.getName());
} else if(!ouser.isFound() || !ouser.isResponsible()) {
return Result.err(Result.ERR_Policy,"%s reports that %s cannot be responsible for %s",org.getName(),trans.user());
}
// Set Email from most current Sponsor
email = ouser.email();
// Policy 5: keep Artifact data current
if(!ouser.fullID().equals(add.sponsor)) {
add.sponsor = ouser.fullID();
artiDAO.update(trans, add);
}
// Policy 6: Requester must be granted Change permission in Namespace requested
String mechNS = AAFCon.reverseDomain(req.value.mechid);
if(mechNS==null) {
return Result.err(Status.ERR_Denied, "%s does not reflect a valid AAF Namespace",req.value.mechid);
}
// Policy 7: Caller must be the MechID or have specifically delegated permissions
if(!trans.user().equals(req.value.mechid) && !trans.fish(new AAFPermission(mechNS + ".certman", ca.getName() , "request"))) {
return Result.err(Status.ERR_Denied, "%s must have access to modify x509 certs in NS %s",trans.user(),mechNS);
}
// Policy 8: SANs only allowed by Exception... need permission
fqdns = new ArrayList<String>();
fqdns.add(add.machine); // machine is first
if(req.value.fqdns.size()>1 && !trans.fish(new AAFPermission(ca.getPermType(), ca.getName(), SANS))) {
if(notes==null) {notes = new ArrayList<String>();}
notes.add("Warning: Subject Alternative Names only allowed by Permission: Get CSO Exception. This Certificate will be created, but without SANs");
} else {
for(String m : req.value.fqdns) {
if(!add.machine.equals(m)) {
fqdns.add(m);
}
}
}
} catch (Exception e) {
trans.error().log(e);
return Result.err(Status.ERR_Denied,"MechID Sponsorship cannot be determined at this time. Try later");
}
CSRMeta csrMeta;
try {
csrMeta = BCFactory.createCSRMeta(
ca,
req.value.mechid,
email,
fqdns);
X509Certificate x509 = ca.sign(trans, csrMeta);
if(x509==null) {
return Result.err(Result.ERR_ActionNotCompleted,"x509 Certificate not signed by CA");
}
CertDAO.Data cdd = new CertDAO.Data();
cdd.ca=ca.getName();
cdd.serial=x509.getSerialNumber();
cdd.id=req.value.mechid;
cdd.x500=x509.getSubjectDN().getName();
cdd.x509=Factory.toString(trans, x509);
certDAO.create(trans, cdd);
CredDAO.Data crdd = new CredDAO.Data();
crdd.other = Question.random.nextInt();
crdd.cred=getChallenge256SaltedHash(csrMeta.challenge(),crdd.other);
crdd.expires = x509.getNotAfter();
crdd.id = req.value.mechid;
crdd.ns = Question.domain2ns(crdd.id);
crdd.type = CredDAO.CERT_SHA256_RSA;
credDAO.create(trans, crdd);
CertResp cr = new CertResp(trans,x509,csrMeta, compileNotes(notes));
return Result.ok(cr);
} catch (Exception e) {
trans.error().log(e);
return Result.err(Result.ERR_ActionNotCompleted,e.getMessage());
}
} else {
return Result.err(req);
}
}
public Result<CertResp> renewCert(AuthzTrans trans, Result<CertRenew> renew) {
if(renew.isOK()) {
return Result.err(Result.ERR_NotImplemented,"Not implemented yet");
} else {
return Result.err(renew);
}
}
public Result<Void> dropCert(AuthzTrans trans, Result<CertDrop> drop) {
if(drop.isOK()) {
return Result.err(Result.ERR_NotImplemented,"Not implemented yet");
} else {
return Result.err(drop);
}
}
///////////////
// Artifact
//////////////
public Result<Void> createArtifact(AuthzTrans trans, List<ArtiDAO.Data> list) {
Validator v = new Validator().artisRequired(list, 1);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
for(ArtiDAO.Data add : list) {
try {
// Policy 1: MechID must exist in Org
Identity muser = trans.org().getIdentity(trans, add.mechid);
if(muser == null) {
return Result.err(Result.ERR_Denied,"%s is not valid for %s", add.mechid,trans.org().getName());
}
// Policy 2: MechID must have valid Organization Owner
Identity ouser = muser.owner();
if(ouser == null) {
return Result.err(Result.ERR_Denied,"%s is not a valid Sponsor for %s at %s",
trans.user(),add.mechid,trans.org().getName());
}
// Policy 3: Calling ID must be MechID Owner
if(!trans.user().equals(ouser.fullID())) {
return Result.err(Result.ERR_Denied,"%s is not the Sponsor for %s at %s",
trans.user(),add.mechid,trans.org().getName());
}
// Policy 4: Renewal Days are between 10 and 60 (constants, may be parameterized)
if(add.renewDays<MIN_RENEWAL) {
add.renewDays = STD_RENEWAL;
} else if(add.renewDays>MAX_RENEWAL) {
add.renewDays = MAX_RENEWAL;
}
// Policy 5: If Notify is blank, set to Owner's Email
if(add.notify==null || add.notify.length()==0) {
add.notify = "mailto:"+ouser.email();
}
// Set Sponsor from Golden Source
add.sponsor = ouser.fullID();
} catch (OrganizationException e) {
return Result.err(e);
}
// Add to DB
Result<ArtiDAO.Data> rv = artiDAO.create(trans, add);
// TODO come up with Partial Reporting Scheme, or allow only one at a time.
if(rv.notOK()) {
return Result.err(rv);
}
}
return Result.ok();
}
public Result<List<ArtiDAO.Data>> readArtifacts(AuthzTrans trans, ArtiDAO.Data add) throws OrganizationException {
Validator v = new Validator().keys(add);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
String ns = AAFCon.reverseDomain(add.mechid);
if( trans.user().equals(add.mechid)
|| trans.fish(new AAFPermission(ns + ".access", "*", "read"))
|| (trans.org().validate(trans,Organization.Policy.OWNS_MECHID,null,add.mechid))==null) {
return artiDAO.read(trans, add);
} else {
return Result.err(Result.ERR_Denied,"%s is not %s, is not the sponsor, and doesn't have delegated permission.",trans.user(),add.mechid); // note: reason is set by 2nd case, if 1st case misses
}
}
public Result<List<ArtiDAO.Data>> readArtifactsByMechID(AuthzTrans trans, String mechid) throws OrganizationException {
Validator v = new Validator().nullOrBlank("mechid", mechid);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
String ns = AAFCon.reverseDomain(mechid);
String reason;
if(trans.fish(new AAFPermission(ns + ".access", "*", "read"))
|| (reason=trans.org().validate(trans,Organization.Policy.OWNS_MECHID,null,mechid))==null) {
return artiDAO.readByMechID(trans, mechid);
} else {
return Result.err(Result.ERR_Denied,reason); // note: reason is set by 2nd case, if 1st case misses
}
}
public Result<List<ArtiDAO.Data>> readArtifactsByMachine(AuthzTrans trans, String machine) {
Validator v = new Validator().nullOrBlank("machine", machine);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
// TODO do some checks?
Result<List<ArtiDAO.Data>> rv = artiDAO.readByMachine(trans, machine);
return rv;
}
public Result<Void> updateArtifact(AuthzTrans trans, List<ArtiDAO.Data> list) throws OrganizationException {
Validator v = new Validator().artisRequired(list, 1);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
// Check if requesting User is Sponsor
//TODO - Shall we do one, or multiples?
for(ArtiDAO.Data add : list) {
// Policy 1: MechID must exist in Org
Identity muser = trans.org().getIdentity(trans, add.mechid);
if(muser == null) {
return Result.err(Result.ERR_Denied,"%s is not valid for %s", add.mechid,trans.org().getName());
}
// Policy 2: MechID must have valid Organization Owner
Identity ouser = muser.owner();
if(ouser == null) {
return Result.err(Result.ERR_Denied,"%s is not a valid Sponsor for %s at %s",
trans.user(),add.mechid,trans.org().getName());
}
// Policy 3: Renewal Days are between 10 and 60 (constants, may be parameterized)
if(add.renewDays<MIN_RENEWAL) {
add.renewDays = STD_RENEWAL;
} else if(add.renewDays>MAX_RENEWAL) {
add.renewDays = MAX_RENEWAL;
}
// Policy 4: Data is always updated with the latest Sponsor
// Add to Sponsor, to make sure we are always up to date.
add.sponsor = ouser.fullID();
// Policy 5: If Notify is blank, set to Owner's Email
if(add.notify==null || add.notify.length()==0) {
add.notify = "mailto:"+ouser.email();
}
// Policy 4: only Owner may update info
if(trans.user().equals(add.sponsor)) {
return artiDAO.update(trans, add);
} else {
return Result.err(Result.ERR_Denied,"%s may not update info for %s",trans.user(),muser.fullID());
}
}
return Result.err(Result.ERR_BadData,"No Artifacts to update");
}
public Result<Void> deleteArtifact(AuthzTrans trans, String mechid, String machine) throws OrganizationException {
Validator v = new Validator()
.nullOrBlank("mechid", mechid)
.nullOrBlank("machine", machine);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
Result<List<ArtiDAO.Data>> rlad = artiDAO.read(trans, mechid, machine);
if(rlad.notOKorIsEmpty()) {
return Result.err(Result.ERR_NotFound,"Artifact for %s %s does not exist.",mechid,machine);
}
return deleteArtifact(trans,rlad.value.get(0));
}
private Result<Void> deleteArtifact(AuthzTrans trans, ArtiDAO.Data add) throws OrganizationException {
// Policy 1: Record should be delete able only by Existing Sponsor.
String sponsor=null;
Identity muser = trans.org().getIdentity(trans, add.mechid);
if(muser != null) {
Identity ouser = muser.owner();
if(ouser!=null) {
sponsor = ouser.fullID();
}
}
// Policy 1.a: If Sponsorship is deleted in system of Record, then
// accept deletion by sponsor in Artifact Table
if(sponsor==null) {
sponsor = add.sponsor;
}
String ns = AAFCon.reverseDomain(add.mechid);
if(trans.fish(new AAFPermission(ns + ".access", "*", "write"))
|| trans.user().equals(sponsor)) {
return artiDAO.delete(trans, add, false);
}
return null;
}
public Result<Void> deleteArtifact(AuthzTrans trans, List<ArtiDAO.Data> list) {
Validator v = new Validator().artisRequired(list, 1);
if(v.err()) {
return Result.err(Result.ERR_BadData,v.errs());
}
try {
boolean partial = false;
Result<Void> result=null;
for(ArtiDAO.Data add : list) {
result = deleteArtifact(trans, add);
if(result.notOK()) {
partial = true;
}
}
if(result == null) {
result = Result.err(Result.ERR_BadData,"No Artifacts to delete");
} else if(partial) {
result.partialContent(true);
}
return result;
} catch(Exception e) {
return Result.err(e);
}
}
private String[] compileNotes(List<String> notes) {
String[] rv;
if(notes==null) {
rv = NO_NOTES;
} else {
rv = new String[notes.size()];
notes.toArray(rv);
}
return rv;
}
private ByteBuffer getChallenge256SaltedHash(String challenge, int salt) throws NoSuchAlgorithmException {
ByteBuffer bb = ByteBuffer.allocate(Integer.SIZE + challenge.length());
bb.putInt(salt);
bb.put(challenge.getBytes());
byte[] hash = Hash.hashSHA256(bb.array());
return ByteBuffer.wrap(hash);
}
}
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