Merge pull request 'Add OTP based enrollment and SCEP support' (#88) from pahansith/support-carbon-device-mgt:otp-enrollment into support-5.0.24

Reviewed-on: support/support-carbon-device-mgt#88

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/dao/CertificateDAO.java

@@ -51,6 +51,16 @@ public interface CertificateDAO {
      */
     CertificateResponse retrieveCertificate(String serialNumber) throws CertificateManagementDAOException;
 
+    /**
+     * Obtain a certificated stored in the database by providing the common name and the tenant ID
+     *
+     * @param serialNumber Serial number (Common name) of the certificate
+     * @param tenantId ID of the certificate owning tenant
+     * @return representation of the certificate.
+     * @throws CertificateManagementDAOException if fails to read the certificate from the database
+     */
+    CertificateResponse retrieveCertificate(String serialNumber, int tenantId) throws CertificateManagementDAOException;
+
     /**
      * Get all the certificates in a paginated manner.
      *

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/dao/impl/AbstractCertificateDAOImpl.java

@@ -119,6 +119,42 @@ public abstract class AbstractCertificateDAOImpl implements CertificateDAO{
         return certificateResponse;
     }
 
+    @Override
+    public CertificateResponse retrieveCertificate(String serialNumber, int tenantId) throws CertificateManagementDAOException {
+        Connection conn;
+        PreparedStatement stmt = null;
+        ResultSet resultSet = null;
+        CertificateResponse certificateResponse = null;
+        try {
+            conn = this.getConnection();
+            String query =
+                    "SELECT CERTIFICATE, SERIAL_NUMBER, TENANT_ID, USERNAME FROM"
+                            + " DM_DEVICE_CERTIFICATE WHERE SERIAL_NUMBER = ? AND TENANT_ID = ? ";
+            stmt = conn.prepareStatement(query);
+            stmt.setString(1, serialNumber);
+            stmt.setInt(2, tenantId);
+            resultSet = stmt.executeQuery();
+
+            if (resultSet.next()) {
+                certificateResponse = new CertificateResponse();
+                byte[] certificateBytes = resultSet.getBytes("CERTIFICATE");
+                certificateResponse.setCertificate(certificateBytes);
+                certificateResponse.setSerialNumber(resultSet.getString("SERIAL_NUMBER"));
+                certificateResponse.setTenantId(resultSet.getInt("TENANT_ID"));
+                certificateResponse.setUsername(resultSet.getString("USERNAME"));
+                CertificateGenerator.extractCertificateDetails(certificateBytes, certificateResponse);
+            }
+        } catch (SQLException e) {
+            String errorMsg =
+                    "Unable to get the read the certificate with serial" + serialNumber;
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOUtil.cleanupResources(stmt, resultSet);
+        }
+        return certificateResponse;
+    }
+
     @Override
     public List<CertificateResponse> searchCertificate(String serialNumber)
             throws CertificateManagementDAOException {

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/impl/CertificateGenerator.java

@@ -44,12 +44,17 @@ import org.bouncycastle.operator.OperatorCreationException;
 import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;
 import org.bouncycastle.pkcs.PKCS10CertificationRequest;
 import org.bouncycastle.util.Store;
-import org.jscep.message.*;
+import org.jscep.message.CertRep;
+import org.jscep.message.MessageDecodingException;
+import org.jscep.message.MessageEncodingException;
+import org.jscep.message.PkcsPkiEnvelopeDecoder;
+import org.jscep.message.PkcsPkiEnvelopeEncoder;
+import org.jscep.message.PkiMessage;
+import org.jscep.message.PkiMessageDecoder;
+import org.jscep.message.PkiMessageEncoder;
 import org.jscep.transaction.FailInfo;
 import org.jscep.transaction.Nonce;
 import org.jscep.transaction.TransactionId;
-import org.wso2.carbon.certificate.mgt.core.cache.CertificateCacheManager;
-import org.wso2.carbon.certificate.mgt.core.cache.impl.CertificateCacheManagerImpl;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateDAO;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOFactory;
@@ -72,13 +77,28 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.math.BigInteger;
-import java.security.*;
+import java.security.InvalidKeyException;
+import java.security.KeyFactory;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.SecureRandom;
+import java.security.Security;
+import java.security.SignatureException;
 import java.security.cert.Certificate;
-import java.security.cert.*;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-import java.util.List;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateExpiredException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.CertificateNotYetValidException;
+import java.security.cert.X509Certificate;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.X509EncodedKeySpec;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
 
 public class CertificateGenerator {
 
@@ -338,15 +358,31 @@ public class CertificateGenerator {
         CertificateResponse lookUpCertificate = null;
         KeyStoreReader keyStoreReader = new KeyStoreReader();
         if (distinguishedName != null && !distinguishedName.isEmpty()) {
-            if (distinguishedName.contains("/CN=")) {
-                String[] dnSplits = distinguishedName.split("/");
-                for (String dnPart : dnSplits) {
-                    if (dnPart.contains("CN=")) {
-                        String commonNameExtracted = dnPart.replace("CN=", "");
-                        lookUpCertificate = keyStoreReader.getCertificateBySerial(commonNameExtracted);
-                        break;
+            if (distinguishedName.contains("CN=")) {
+                String[] dnSplits = null;
+                if (distinguishedName.contains("/")) {
+                    dnSplits = distinguishedName.split("/");
+                } else if (distinguishedName.contains(",")) {
+                    //some older versions of nginx will forward the client certificate subject dn separated with commas
+                    dnSplits = distinguishedName.split(",");
+                }
+                String commonNameExtracted = null;
+                int tenantId = 0;
+                if (dnSplits != null && dnSplits.length >= 1) {
+                    for (String dnPart : dnSplits) {
+                        if (dnPart.contains("CN=")) {
+                            commonNameExtracted = dnPart.replace("CN=", "");
+                        } else if (dnPart.contains("OU=")) {
+                            //the OU of the certificate will be like OU=tenant_<TENANT_ID> ex: OU=tenant_-1234
+                            //splitting by underscore to extract the tenant domain
+                            String[] orgUnitSplits = dnPart.split("_");
+                            tenantId = Integer.parseInt(orgUnitSplits[1]);
+                        }
                     }
                 }
+
+                lookUpCertificate = keyStoreReader.getCertificateBySerial(commonNameExtracted, tenantId);
+
             } else {
                 LdapName ldapName;
                 try {
@@ -757,4 +793,95 @@ public class CertificateGenerator {
         return generateCertificateFromCSR(privateKeyCA, certificationRequest,
                 certCA.getIssuerX500Principal().getName());
     }
-}
+
+    public X509Certificate generateAlteredCertificateFromCSR(String csr)
+            throws KeystoreException {
+        byte[] byteArrayBst = DatatypeConverter.parseBase64Binary(csr);
+        PKCS10CertificationRequest certificationRequest;
+        KeyStoreReader keyStoreReader = new KeyStoreReader();
+        PrivateKey privateKeyCA = keyStoreReader.getCAPrivateKey();
+        X509Certificate certCA = (X509Certificate) keyStoreReader.getCACertificate();
+
+        X509Certificate issuedCert;
+        try {
+            certificationRequest = new PKCS10CertificationRequest(byteArrayBst);
+            JcaContentSignerBuilder csBuilder =
+                    new JcaContentSignerBuilder(CertificateManagementConstants.SIGNING_ALGORITHM);
+            ContentSigner signer = csBuilder.build(privateKeyCA);
+
+            BigInteger serialNumber = BigInteger.valueOf(System.currentTimeMillis());
+
+            //Reversing the order of components of the subject DN due to Nginx not verifying the client certificate
+            //generated by Java using this subject DN.
+            //Ref: https://stackoverflow.com/questions/33769978 & engineering mail SCEP implementation for Android
+            String[] dnParts = certCA.getSubjectDN().getName().split(",");
+            StringJoiner joiner = new StringJoiner(",");
+            for (int i = (dnParts.length - 1); i >= 0; i--) {
+                joiner.add(dnParts[i]);
+            }
+            String subjectDn = joiner.toString();
+            X500Name issuerName = new X500Name(subjectDn);
+            String commonName = certificationRequest.getSubject().getRDNs(BCStyle.CN)[0].getFirst()
+                    .getValue().toString();
+            int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+            X500Name subjectName = new X500Name("O=" + commonName + ",CN=" +
+                    serialNumber + ", OU=tenant_"+tenantId);
+            Date startDate = new Date(System.currentTimeMillis());
+            Date endDate = new Date(System.currentTimeMillis()
+                    + TimeUnit.DAYS.toMillis(365 * 100));
+            PublicKey publicKey = getPublicKeyFromRequest(certificationRequest);
+
+            X509v3CertificateBuilder certBuilder = new JcaX509v3CertificateBuilder(
+                    issuerName, serialNumber, startDate, endDate,
+                    subjectName, publicKey);
+
+            X509CertificateHolder certHolder = certBuilder.build(signer);
+
+            CertificateFactory certificateFactory = CertificateFactory.getInstance
+                    (CertificateManagementConstants.X_509);
+            byte[] encodedCertificate = certHolder.getEncoded();
+            issuedCert = (X509Certificate) certificateFactory
+                    .generateCertificate(new ByteArrayInputStream(encodedCertificate));
+
+            org.wso2.carbon.certificate.mgt.core.bean.Certificate certificate =
+                    new org.wso2.carbon.certificate.mgt.core.bean.Certificate();
+            List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificates = new ArrayList<>();
+            certificate.setTenantId(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            certificate.setCertificate(issuedCert);
+            certificates.add(certificate);
+            saveCertInKeyStore(certificates);
+
+        } catch (OperatorCreationException e) {
+            String errorMsg = "Error creating the content signer";
+            log.error(errorMsg);
+            throw new KeystoreException(errorMsg, e);
+        } catch (CertificateException e) {
+            String errorMsg = "Error when opening the newly created certificate";
+            log.error(errorMsg);
+            throw new KeystoreException(errorMsg, e);
+        } catch (InvalidKeySpecException e) {
+            String errorMsg = "Public key is having invalid specification";
+            log.error(errorMsg);
+            throw new KeystoreException(errorMsg, e);
+        } catch (NoSuchAlgorithmException e) {
+            String errorMsg = "Could not find RSA algorithm";
+            log.error(errorMsg);
+            throw new KeystoreException(errorMsg, e);
+        } catch (IOException e) {
+            String errorMsg = "Error while reading the csr";
+            log.error(errorMsg);
+            throw new KeystoreException(errorMsg, e);
+        }
+        return issuedCert;
+    }
+
+    private static PublicKey getPublicKeyFromRequest(PKCS10CertificationRequest request)
+            throws InvalidKeySpecException, NoSuchAlgorithmException, IOException {
+        byte[] publicKeyBytes = request.getSubjectPublicKeyInfo().getEncoded();
+        X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(publicKeyBytes);
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        PublicKey publicKey = keyFactory.generatePublic(publicKeySpec);
+        return publicKey;
+    }
+
+}

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/impl/KeyStoreReader.java

@@ -275,6 +275,43 @@ public class KeyStoreReader {
         return raPrivateKey;
     }
 
+    public CertificateResponse getCertificateBySerial(String serialNumber, int tenantId) throws KeystoreException {
+        CertificateResponse certificateResponse = null;
+        try {
+            CertificateCacheManager cacheManager = CertificateCacheManagerImpl.getInstance();
+            certificateResponse = cacheManager.getCertificateBySerial(serialNumber);
+            if (certificateResponse == null) {
+                try {
+                    CertificateManagementDAOFactory.openConnection();
+                    certificateResponse = certDao.retrieveCertificate(serialNumber, tenantId);
+                } catch (SQLException e) {
+                    String errorMsg = "Error when making a connection to the database.";
+                    throw new KeystoreException(errorMsg, e);
+                } finally {
+                    CertificateManagementDAOFactory.closeConnection();
+                }
+                if (certificateResponse != null && certificateResponse.getCertificate() != null) {
+                    Certificate certificate = (Certificate) Serializer.deserialize(certificateResponse.getCertificate());
+                    if (certificate instanceof X509Certificate) {
+                        X509Certificate x509cert = (X509Certificate) certificate;
+                        String commonName = CertificateGenerator.getCommonName(x509cert);
+                        certificateResponse.setCommonName(commonName);
+                        cacheManager.addCertificateBySerial(serialNumber, certificateResponse);
+                    }
+                }
+            }
+        } catch (CertificateManagementDAOException e) {
+            String errorMsg = "Error when retrieving certificate from the the database for the serial number: " +
+                    serialNumber;
+            throw new KeystoreException(errorMsg, e);
+
+        } catch (ClassNotFoundException | IOException e) {
+            String errorMsg = "Error when de-serializing saved certificate.";
+            throw new KeystoreException(errorMsg, e);
+        }
+        return certificateResponse;
+    }
+
     public CertificateResponse getCertificateBySerial(String serialNumber) throws KeystoreException {
         CertificateResponse certificateResponse = null;
         try {

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/service/CertificateManagementService.java

@@ -79,4 +79,6 @@ public interface CertificateManagementService {
 
     List<CertificateResponse> searchCertificates(String serialNumber) throws CertificateManagementException;
 
+    X509Certificate generateAlteredCertificateFromCSR(String csr) throws KeystoreException;
+
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/service/CertificateManagementServiceImpl.java

@@ -234,4 +234,9 @@ public class CertificateManagementServiceImpl implements CertificateManagementSe
         }
     }
 
+    @Override
+    public X509Certificate generateAlteredCertificateFromCSR(String csr) throws KeystoreException{
+        return certificateGenerator.generateAlteredCertificateFromCSR(csr);
+    }
+
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/util/CertificateManagementConstants.java

@@ -39,6 +39,7 @@ public final class CertificateManagementConstants {
     public static final String RSA_PRIVATE_KEY_END_TEXT = "-----END RSA PRIVATE KEY-----";
     public static final String EMPTY_TEXT = "";
     public static final int RSA_KEY_LENGTH = 2048;
+    public static final String SIGNING_ALGORITHM = "SHA256withRSA";
 
     public static final class DataBaseTypes {
         private DataBaseTypes() {

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/DeviceManagementConstants.java

@@ -134,6 +134,8 @@ public final class DeviceManagementConstants {
         public static final String LAST_NAME = "last-name";
         public static final String TENANT_ADMIN_USERNAME = "tenant-admin-username";
         public static final String TENANT_ADMIN_PASSWORD = "tenant-admin-password";
+
+        public static final int OTP_DEFAULT_EXPIRY_SECONDS = 3600;
     }
 
     public static final class EventServices {

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/general/QREnrollmentDetails.java

@@ -22,6 +22,7 @@ public class QREnrollmentDetails {
     String ownershipType;
     String username;
     String enrollmentMode;
+    int tokenExpiry;
 
     public String getOwnershipType() { return ownershipType; }
 
@@ -34,4 +35,12 @@ public class QREnrollmentDetails {
     public String getEnrollmentMode() { return enrollmentMode; }
 
     public void setEnrollmentMode(String enrollmentMode) { this.enrollmentMode = enrollmentMode; }
+
+    public int getTokenExpiry() {
+        return tokenExpiry;
+    }
+
+    public void setTokenExpiry(int tokenExpiry) {
+        this.tokenExpiry = tokenExpiry;
+    }
 }

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/otp/mgt/OTPEmailTypes.java

@@ -18,5 +18,5 @@
 package org.wso2.carbon.device.mgt.common.otp.mgt;
 
 public enum OTPEmailTypes {
-    USER_VERIFY, DEVICE_ENROLLMENT
+    USER_VERIFY, DEVICE_ENROLLMENT, USER_INVITE
 }

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/OTPManagementService.java

@@ -34,7 +34,8 @@ public interface OTPManagementService {
      * @throws OTPManagementException if error occurred whle verifying validity of the OPT
      * @throws BadRequestException if found an null value for OTP
      */
-    OneTimePinDTO isValidOTP(String oneTimeToken) throws OTPManagementException, BadRequestException;
+    OneTimePinDTO isValidOTP(String oneTimeToken, boolean requireRenewal) throws
+            OTPManagementException, BadRequestException;
 
     /**
      * Invalidate the OTP and send welcome mail
@@ -58,8 +59,7 @@ public interface OTPManagementService {
     boolean hasEmailRegistered(String email, String emailDomain) throws OTPManagementException,
             DeviceManagementException;
 
-    OneTimePinDTO generateOneTimePin(String email, String emailType, String userName, Object metaDataObj,
-                                     int tenantId, boolean persistPin) throws OTPManagementException;
+    OneTimePinDTO generateOneTimePin(OneTimePinDTO oneTimePinData, boolean persistPin) throws OTPManagementException;
 
     OneTimePinDTO getRenewedOtpByEmailAndMailType(String email, String emailType) throws OTPManagementException;
 

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/otp/mgt/dao/impl/GenericOTPManagementDAOImpl.java

@@ -19,6 +19,7 @@ package org.wso2.carbon.device.mgt.core.otp.mgt.dao.impl;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.device.mgt.common.DeviceManagementConstants;
 import org.wso2.carbon.device.mgt.common.exceptions.DBConnectionException;
 import org.wso2.carbon.device.mgt.common.otp.mgt.dto.OneTimePinDTO;
 import org.wso2.carbon.device.mgt.core.otp.mgt.dao.AbstractDAOImpl;
@@ -55,7 +56,8 @@ public class GenericOTPManagementDAOImpl extends AbstractDAOImpl implements OTPM
                 + "META_INFO, "
                 + "CREATED_AT,"
                 + "TENANT_ID,"
-                + "USERNAME) VALUES (?, ?, ?, ?, ?, ?, ?)";
+                + "USERNAME, "
+                + "EXPIRY_TIME) VALUES (?, ?, ?, ?, ?, ?, ?, ?)";
         try {
             Connection conn = this.getDBConnection();
             Calendar calendar = Calendar.getInstance();
@@ -69,6 +71,8 @@ public class GenericOTPManagementDAOImpl extends AbstractDAOImpl implements OTPM
                     stmt.setTimestamp(5, timestamp);
                     stmt.setInt(6, oneTimePinDTO.getTenantId());
                     stmt.setString(7, oneTimePinDTO.getUsername());
+                    stmt.setInt(8, oneTimePinDTO.getExpiryTime() == 0
+                            ? DeviceManagementConstants.OTPProperties.OTP_DEFAULT_EXPIRY_SECONDS : oneTimePinDTO.getExpiryTime());
                     stmt.addBatch();
                 }
                 stmt.executeBatch();

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/otp/mgt/service/OTPManagementServiceImpl.java

@@ -126,7 +126,8 @@ public class OTPManagementServiceImpl implements OTPManagementService {
     }
 
     @Override
-    public OneTimePinDTO isValidOTP(String oneTimeToken) throws OTPManagementException, BadRequestException {
+    public OneTimePinDTO isValidOTP(String oneTimeToken, boolean requireRenewal) throws OTPManagementException,
+            BadRequestException {
         if (StringUtils.isBlank(oneTimeToken)){
             String msg = "Received blank OTP to verify. OTP: " + oneTimeToken;
             log.error(msg);
@@ -150,17 +151,19 @@ public class OTPManagementServiceImpl implements OTPManagementService {
                 oneTimePinDTO.getCreatedAt().getTime() + oneTimePinDTO.getExpiryTime() * 1000L);
 
         if (currentTimestamp.after(expiredTimestamp)) {
-            String renewedOTP = UUID.randomUUID().toString();
-            renewOTP(oneTimePinDTO, renewedOTP);
-            Gson gson = new Gson();
-            Tenant tenant = gson.fromJson(oneTimePinDTO.getMetaInfo(), Tenant.class);
+            if (requireRenewal) {
+                String renewedOTP = UUID.randomUUID().toString();
+                renewOTP(oneTimePinDTO, renewedOTP);
+                Gson gson = new Gson();
+                Tenant tenant = gson.fromJson(oneTimePinDTO.getMetaInfo(), Tenant.class);
 
-            Properties props = new Properties();
-            props.setProperty("first-name", tenant.getAdminFirstName());
-            props.setProperty("otp-token", renewedOTP);
-            props.setProperty("email", oneTimePinDTO.getEmail());
-            props.setProperty("type", oneTimePinDTO.getEmailType());
-            sendMail(props, oneTimePinDTO.getEmail(), DeviceManagementConstants.EmailAttributes.USER_VERIFY_TEMPLATE);
+                Properties props = new Properties();
+                props.setProperty("first-name", tenant.getAdminFirstName());
+                props.setProperty("otp-token", renewedOTP);
+                props.setProperty("email", oneTimePinDTO.getEmail());
+                props.setProperty("type", oneTimePinDTO.getEmailType());
+                sendMail(props, oneTimePinDTO.getEmail(), DeviceManagementConstants.EmailAttributes.USER_VERIFY_TEMPLATE);
+            }
             return null;
         }
         return oneTimePinDTO;
@@ -243,8 +246,14 @@ public class OTPManagementServiceImpl implements OTPManagementService {
             for (String username : deviceEnrollmentInvitation.getUsernames()) {
                 String emailAddress = DeviceManagerUtil.getUserClaimValue(
                         username, DeviceManagementConstants.User.CLAIM_EMAIL_ADDRESS);
-                oneTimePinDTO = generateOneTimePin(emailAddress, OTPEmailTypes.DEVICE_ENROLLMENT.toString(), username,
-                        null, tenantId, false);
+
+                OneTimePinDTO oneTimePinData = new OneTimePinDTO();
+                oneTimePinData.setEmail(emailAddress);
+                oneTimePinData.setTenantId(tenantId);
+                oneTimePinData.setUsername(username);
+                oneTimePinData.setEmailType(OTPEmailTypes.USER_INVITE.toString());
+
+                oneTimePinDTO = generateOneTimePin(oneTimePinData, false);
                 oneTimePinDTOList.add(oneTimePinDTO);
                 props.setProperty("first-name", DeviceManagerUtil.
                         getUserClaimValue(username, DeviceManagementConstants.User.CLAIM_FIRST_NAME));
@@ -278,27 +287,17 @@ public class OTPManagementServiceImpl implements OTPManagementService {
 
     /**
      * Create One Time Token
-     * @param email email
-     * @param emailType email type
-     * @param userName username
-     * @param metaDataObj meta data object
-     * @param tenantId tenant Id
+     * @param oneTimePinDTO Data related to the one time pin
      * @return {@link OneTimePinDTO}
      */
     @Override
-    public OneTimePinDTO generateOneTimePin(String email, String emailType, String userName, Object metaDataObj,
-                                            int tenantId, boolean persistPin) throws OTPManagementException {
+    public OneTimePinDTO generateOneTimePin(OneTimePinDTO oneTimePinDTO, boolean persistPin) throws OTPManagementException {
 
         String otpValue = UUID.randomUUID().toString();
 
         Gson gson = new Gson();
-        String metaInfo = gson.toJson(metaDataObj);
+        String metaInfo = gson.toJson(oneTimePinDTO.getMetaInfo());
 
-        OneTimePinDTO oneTimePinDTO = new OneTimePinDTO();
-        oneTimePinDTO.setEmail(email);
-        oneTimePinDTO.setTenantId(tenantId);
-        oneTimePinDTO.setUsername(userName);
-        oneTimePinDTO.setEmailType(emailType);
         oneTimePinDTO.setMetaInfo(metaInfo);
         oneTimePinDTO.setOtpToken(otpValue);
 

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/authenticator/BasicAuthAuthenticator.java

@@ -36,6 +36,7 @@ import org.wso2.carbon.webapp.authenticator.framework.Utils.Utils;
 import java.nio.charset.Charset;
 import java.util.Base64;
 import java.util.Properties;
+import java.util.StringTokenizer;
 
 public class BasicAuthAuthenticator implements WebappAuthenticator {
 
@@ -51,15 +52,23 @@ public class BasicAuthAuthenticator implements WebappAuthenticator {
     @Override
     public boolean canHandle(Request request) {
         /*
-        This is done to avoid every endpoint being able to use basic auth. Add the following to
-        the required web.xml of the web app.
+        This is done to avoid every web app being able to use basic auth. Add the following to
+        the required web.xml of the web app. This is a global config for a web app to allow all
+        contexts of the web app to use basic auth
         <context-param>
             <param-name>basicAuth</param-name>
             <param-value>true</param-value>
 	    </context-param>
+
+	    Adding the basicAuthAllowList parameter allows to selectively allow some context paths in a
+	    web app to use basic auth while all the other context remain unavailable with basic auth.
+	    If this parameter is present, any context that requires basic auth must be specially
+	    added as comma separated list to the param-value of basicAuthAllowList.
          */
-        if (!isAuthenticationSupported(request)) {
-            return false;
+        if (!isAllowListedForBasicAuth(request)) {
+            if (!isAuthenticationSupported(request)) {
+                return false;
+            }
         }
         if (request.getCoyoteRequest() == null || request.getCoyoteRequest().getMimeHeaders() == null) {
             return false;
@@ -76,6 +85,20 @@ public class BasicAuthAuthenticator implements WebappAuthenticator {
         return false;
     }
 
+    private boolean isAllowListedForBasicAuth(Request request) {
+        String param = request.getContext().findParameter("basicAuthAllowList");
+        if (param != null && !param.isEmpty()) {
+            //Add the nonSecured end-points to cache
+            String[] basicAuthAllowList = param.split(",");
+            for (String contexPath : basicAuthAllowList) {
+                if (request.getRequestURI().toString().endsWith(contexPath.trim())) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     @Override
     public AuthenticationInfo authenticate(Request request, Response response) {
         AuthenticationInfo authenticationInfo = new AuthenticationInfo();

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/authenticator/CertificateAuthenticator.java

@@ -75,21 +75,30 @@ public class CertificateAuthenticator implements WebappAuthenticator {
             // When there is a load balancer terminating mutual SSL, it should pass this header along and
             // as the value of this header, the client certificate subject dn should be passed.
             if (request.getHeader(PROXY_MUTUAL_AUTH_HEADER) != null) {
+                log.info("PROXY_MUTUAL_AUTH_HEADER " + request.getHeader(PROXY_MUTUAL_AUTH_HEADER));
                 CertificateResponse certificateResponse = AuthenticatorFrameworkDataHolder.getInstance().
                         getCertificateManagementService().verifySubjectDN(request.getHeader(PROXY_MUTUAL_AUTH_HEADER));
+                log.info("clientCertificate" + certificateResponse.getSerialNumber());
+                log.info("clientCertificate" + certificateResponse.getCommonName());
                 authenticationInfo = checkCertificateResponse(certificateResponse);
+                log.info("username" + authenticationInfo.getUsername());
             }
             else if (request.getHeader(MUTUAL_AUTH_HEADER) != null) {
+                log.info("MUTUAL_AUTH_HEADER");
                 Object object = request.getAttribute(CLIENT_CERTIFICATE_ATTRIBUTE);
                 X509Certificate[] clientCertificate = null;
                 if (object instanceof  X509Certificate[]) {
+                    log.info("clientCertificate");
                     clientCertificate = (X509Certificate[]) request.
                             getAttribute(CLIENT_CERTIFICATE_ATTRIBUTE);
                 }
                 if (clientCertificate != null && clientCertificate[0] != null) {
                     CertificateResponse certificateResponse = AuthenticatorFrameworkDataHolder.getInstance().
                             getCertificateManagementService().verifyPEMSignature(clientCertificate[0]);
+                    log.info("clientCertificate" + certificateResponse.getSerialNumber());
+                    log.info("clientCertificate" + certificateResponse.getCommonName());
                     authenticationInfo = checkCertificateResponse(certificateResponse);
+                    log.info("username" + authenticationInfo.getUsername());
 
                 } else {
                     authenticationInfo.setStatus(Status.FAILURE);

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/authenticator/OneTimeTokenAuthenticator.java

@@ -49,8 +49,18 @@ public class OneTimeTokenAuthenticator implements WebappAuthenticator {
         try {
             OTPManagementService otpManagementService = AuthenticatorFrameworkDataHolder.getInstance()
                     .getOtpManagementService();
-            OneTimePinDTO validOTP = otpManagementService.isValidOTP(request.getHeader(Constants.HTTPHeaders
-                    .ONE_TIME_TOKEN_HEADER));
+            OneTimePinDTO validOTP;
+            if (request.getRequestURI().toString().endsWith("cloud/download-url")
+                    || request.getRequestURI().toString().endsWith("cloud/tenant")) {
+                validOTP = otpManagementService.isValidOTP(request.getHeader(Constants.HTTPHeaders
+                        .ONE_TIME_TOKEN_HEADER), true);
+            } else {
+                log.info("Validating OTP for enrollments PIN: " + request.getHeader(Constants
+                        .HTTPHeaders.ONE_TIME_TOKEN_HEADER));
+                validOTP = otpManagementService.isValidOTP(request.getHeader(Constants.HTTPHeaders
+                        .ONE_TIME_TOKEN_HEADER), false);
+            }
+
             if (validOTP != null) {
                 authenticationInfo.setStatus(Status.CONTINUE);
                 authenticationInfo.setTenantId(validOTP.getTenantId());