refactor BpkBuilder in eaaf-utils

1 files changed, 0 insertions, 446 deletions

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/builder/BpkBuilder.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/builder/BpkBuilder.java
deleted file mode 100644
index 17d0099e..00000000
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/builder/BpkBuilder.java
+++ /dev/null
@@ -1,446 +0,0 @@
-/*
- * Copyright 2014 Federal Chancellery Austria MOA-ID has been developed in a cooperation between
- * BRZ, the Federal Chancellery Austria - ICT staff unit, and Graz University of Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by the European
- * Commission - subsequent versions of the EUPL (the "Licence"); You may not use this work except in
- * compliance with the Licence. You may obtain a copy of the Licence at: http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the Licence
- * is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
- * or implied. See the Licence for the specific language governing permissions and limitations under
- * the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text file for details on the
- * various modules and licenses. The "NOTICE" text file is part of the distribution. Any derivative
- * works that you distribute must include a readable copy of the "NOTICE" text file.
-*/
-
-package at.gv.egiz.eaaf.core.impl.idp.auth.builder;
-
-import java.security.InvalidKeyException;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.PublicKey;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.Map.Entry;
-
-import javax.annotation.Nonnull;
-import javax.crypto.BadPaddingException;
-import javax.crypto.Cipher;
-import javax.crypto.IllegalBlockSizeException;
-import javax.crypto.NoSuchPaddingException;
-
-import org.apache.commons.lang3.StringUtils;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-import org.springframework.util.Base64Utils;
-
-import at.gv.egiz.eaaf.core.api.data.EaafConstants;
-import at.gv.egiz.eaaf.core.exceptions.EaafBuilderException;
-import at.gv.egiz.eaaf.core.impl.data.Pair;
-import lombok.extern.slf4j.Slf4j;
-
-
-/**
- * Builder for the bPK, as defined in
- * <code>&quot;Ableitung f&uml;r die bereichsspezifische Personenkennzeichnung&quot;</code>
- * version <code>1.0.1</code> from
- * <code>&quot;reference.e-government.gv.at&quot;</code>.
- *
- */
-@Slf4j
-public class BpkBuilder {
-  
-  private static final String ERROR_CODE_33 = "builder.33";
-    
-  private static final String ERROR_MSG_WRONG_TARGET_FORMAT = "bPK-target format must be full URI";
-  
-  
-  /**
-   * Calculates an area specific unique person-identifier from a baseID.
-   *
-   * @param baseID           baseId from user but never null
-   * @param targetIdentifier target identifier for area specific identifier
-   *                         calculation but never null
-   * @return Pair consists of (unique person identifier for this target,
-   *         targetArea) but never null
-   * @throws EaafBuilderException if some input data are not valid
-   */
-  public static Pair<String, String> generateAreaSpecificPersonIdentifier(final String baseID,
-      final String targetIdentifier) throws EaafBuilderException {
-    return generateAreaSpecificPersonIdentifier(baseID, EaafConstants.URN_PREFIX_BASEID,
-        targetIdentifier);
-
-  }
-
-  /**
-   * Calculates an area specific unique person-identifier from an unique
-   * identifier with a specific type.
-   *
-   * @param baseID           baseId from user but never null
-   * @param baseIdType       Type of the baseID but never null
-   * @param targetIdentifier target identifier for area specific identifier
-   *                         calculation but never null
-   * @return Pair consists of (unique person identifier for this target,
-   *         targetArea) but never null
-   * @throws EaafBuilderException if some input data are not valid
-   */
-  public static Pair<String, String> generateAreaSpecificPersonIdentifier(final String baseID,
-      final String baseIdType, final String targetIdentifier) throws EaafBuilderException {
-    if (StringUtils.isEmpty(baseID)) {
-      throw new EaafBuilderException(ERROR_CODE_33, new Object[] { "baseID is empty or null" },
-          "BaseId is empty or null");
-    }
-
-    if (StringUtils.isEmpty(baseIdType)) {
-      throw new EaafBuilderException(ERROR_CODE_33,
-          new Object[] { "the type of baseID is empty or null" }, "Type of baseId is empty or null");
-    }
-
-    if (StringUtils.isEmpty(targetIdentifier)) {
-      throw new EaafBuilderException(ERROR_CODE_33,
-          new Object[] { "SP specific target identifier is empty or null" },
-          "SP specific target identifier is empty or null");
-    }
-
-    if (baseIdType.equals(EaafConstants.URN_PREFIX_BASEID)) {
-      log.trace("Find baseID. Starting unique identifier caluclation for this target");
-
-      if (targetIdentifier.startsWith(EaafConstants.URN_PREFIX_CDID)) {
-        log.trace("Calculate bPK identifier for target: " + targetIdentifier);
-        return Pair.newInstance(calculatebPKwbPK(baseID + "+" + targetIdentifier),
-            targetIdentifier);
-
-      } else if (targetIdentifier.startsWith(EaafConstants.URN_PREFIX_WBPK)) {
-        log.trace("Calculate  wbPK identifier for target: " + targetIdentifier);
-        String commonBpkTarget = normalizeBpkTargetIdentifierToCommonFormat(targetIdentifier);
-        return Pair.newInstance(calculatebPKwbPK(
-            baseID + "+" + normalizeBpkTargetIdentifierToBpkCalculationFormat(commonBpkTarget)),
-            commonBpkTarget);
-        
-      } else if (targetIdentifier.startsWith(EaafConstants.URN_PREFIX_EIDAS)) {
-        log.trace("Calculate eIDAS identifier for target: " + targetIdentifier);
-        final String[] splittedTarget = targetIdentifier.split("\\+");
-        final String cititzenCountryCode = splittedTarget[1];
-        final String eidasOutboundCountry = splittedTarget[2];
-
-        if (cititzenCountryCode.equalsIgnoreCase(eidasOutboundCountry)) {
-          log.warn("Suspect configuration FOUND!!! CitizenCountry equals DestinationCountry");
-
-        }
-        return buildEidasIdentifer(baseID, baseIdType, cititzenCountryCode, eidasOutboundCountry);
-
-      } else {
-        throw new EaafBuilderException(ERROR_CODE_33,
-            new Object[] { "Target identifier: " + targetIdentifier + " is NOT allowed or unknown" },
-            "Target identifier: " + targetIdentifier + " is NOT allowed or unknown");
-      }
-
-    } else {
-      log.trace("BaseID is not of type " + EaafConstants.URN_PREFIX_BASEID
-          + ". Check type against requested target ...");
-      if (baseIdType.equals(targetIdentifier)) {
-        log.debug("Unique identifier is already area specific. Is nothing todo");
-        return Pair.newInstance(baseID, targetIdentifier);
-
-      } else {
-        log.warn("Get unique identifier for target: " + baseIdType + " but target: "
-            + targetIdentifier + " is required!");
-        throw new EaafBuilderException(ERROR_CODE_33,
-            new Object[] { "Get unique identifier for target: " + baseIdType + " but target: "
-                + targetIdentifier + " is required" },
-            "Get unique identifier for target: " + baseIdType + " but target: " + targetIdentifier
-                + " is required");
-
-      }
-    }
-  }
-
-
-
-  /**
-   * Create an encrypted bPK.
-   *
-   * @param bpk       unencrypted bPK
-   * @param target    bPK target in full form
-   * @param publicKey Public-Key used for encryption
-   * @return encrypted bPK
-   * @throws EaafBuilderException In case of an error
-   */
-  public static String encryptBpk(final String bpk, String target, final PublicKey publicKey)
-      throws EaafBuilderException {
-    final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
-    
-    if (!target.startsWith(EaafConstants.URN_PREFIX_WITH_COLON)) {
-      throw new EaafBuilderException("builder.32", 
-          null, ERROR_MSG_WRONG_TARGET_FORMAT);
-      
-    }
-    
-    target = normalizeBpkTargetIdentifierToBpkCalculationFormat(
-        normalizeBpkTargetIdentifierToCommonFormat(target));
-
-    final String input =
-        "V1::" + target + "::" + bpk + "::" + sdf.format(new Date());
-    // System.out.println(input);
-    byte[] result;
-    try {
-      final byte[] inputBytes = input.getBytes("ISO-8859-1");
-      result = encrypt(inputBytes, publicKey);
-      return new String(Base64Utils.encode(result), "ISO-8859-1").replaceAll("\r\n", "");
-      // return new String(Base64Utils.encode(result,
-      // "ISO-8859-1")).replaceAll("\r\n", "");
-
-    } catch (final Exception e) {
-      throw new EaafBuilderException("bPK encryption FAILED", null, e.getMessage(), e);
-
-    }
-  }
-
-  /**
-   * Decrypt an encrypted bPK.
-   *
-   * @param encryptedBpk encrypted bPK
-   * @param target       bPK target in full form
-   * @param privateKey   private-key for decryption
-   * @return bPK Pair consists of (unique person identifier for this target,
-   *         targetArea) but never null
-   * @throws EaafBuilderException In case of an error
-   */
-  public static Pair<String, String> decryptBpk(final String encryptedBpk, String target,
-      final PrivateKey privateKey) throws EaafBuilderException {
-    String decryptedString;
-    
-    if (!target.startsWith(EaafConstants.URN_PREFIX_WITH_COLON)) {
-      throw new EaafBuilderException("builder.32", 
-          null, ERROR_MSG_WRONG_TARGET_FORMAT);
-      
-    }
-    
-    try {
-      final byte[] encryptedBytes = Base64Utils.decode(encryptedBpk.getBytes("ISO-8859-1"));
-      final byte[] decryptedBytes = decrypt(encryptedBytes, privateKey);
-      decryptedString = new String(decryptedBytes, "ISO-8859-1");
-
-    } catch (final Exception e) {
-      throw new EaafBuilderException("bPK decryption FAILED", null, e.getMessage(), e);
-
-    }
-
-    String[] parts = decryptedString.split("::");
-    if (parts.length != 4) {
-      log.trace("Encrypted bPK has value: {}", decryptedString);
-      throw new EaafBuilderException("builder.31", new Object[] {parts.length}, 
-          "encBpk has a suspect format");
-      
-    }
-    
-    final String sector = parts[1];
-    final String bPK = parts[2];
-
-    if (target.equals(normalizeBpkTargetIdentifierToCommonFormat(sector))) {
-      return Pair.newInstance(bPK, target);
-      
-    } else {
-      throw new EaafBuilderException("builder.30", new Object[] {sector, target}, 
-          "Decrypted bPK-target does not match");
-      
-    }
-  }
-
-  /**
-   * Normalize wbPK target identifier for FN, ZVR, and ERSB to XFN, XZVR, and XERSB.
-   * 
-   * <p>If the target is not of this types the target will be returned as it is</p>
-   * @param targetIdentifier bPK input target
-   * @return XFN, XZVR, XERSB, or targetIdentfier if no normalization is required 
-   */
-  @Nullable
-  public static String normalizeBpkTargetIdentifierToCommonFormat(@Nullable String targetIdentifier) {
-    if (targetIdentifier != null 
-        && !targetIdentifier.startsWith(EaafConstants.URN_PREFIX_WBPK_TARGET_WITH_X)) {
-      for (Entry<String, String> mapper : EaafConstants.URN_WBPK_TARGET_X_TO_NONE_MAPPER.entrySet()) {
-        if (targetIdentifier.startsWith(mapper.getValue())) {
-          String wbpkTarget = mapper.getKey() + targetIdentifier.substring(mapper.getValue().length()); 
-          log.trace("Normalize wbPK target: {} to {}", targetIdentifier, wbpkTarget);
-          return wbpkTarget;
-        
-        }
-      }
-    } 
-    
-    return targetIdentifier;
-  }
-  
-  /**
-   * Normalize wbPK target identifier for XFN, XZVR, and XERSB to bPK non-X format like, FN, ZVR, and ERSB.
-   * 
-   * <p>If the target is not of this types the target will be returned as it is</p>
-   * 
-   * @param targetIdentifier bPK input target
-   * @return FN, ZVR, ERSB, or targetIdentfier if no normalization is required 
-   */
-  @Nullable
-  public static String normalizeBpkTargetIdentifierToNonXFormat(@Nullable String targetIdentifier) {
-    if (targetIdentifier != null && targetIdentifier.startsWith(EaafConstants.URN_PREFIX_WBPK)) {
-      for (Entry<String, String> mapper : EaafConstants.URN_WBPK_TARGET_X_TO_NONE_MAPPER.entrySet()) {
-        if (targetIdentifier.startsWith(mapper.getKey())) {
-          String wbpkTarget = mapper.getValue() + targetIdentifier.substring(mapper.getKey().length()); 
-          log.trace("Find new wbPK target: {}. Replace it by: {}", targetIdentifier, wbpkTarget);
-          return wbpkTarget;
-      
-        }
-      }
-    }
-    
-    return targetIdentifier;    
-  }
-  
-  /**
-   * Normalize wbPK target identifier for XFN, XZVR, and XERSB to bPK calculation format like, FN, VR, and ERJ.
-   * 
-   * <p>If the target is not of this types the target will be returned as it is</p>
-   * 
-   * @param targetIdentifier bPK input target
-   * @return FN, VR, ERJ, or targetIdentfier if no normalization is required 
-   */
-  @Nullable
-  public static String normalizeBpkTargetIdentifierToBpkCalculationFormat(@Nullable String targetIdentifier) {
-    if (targetIdentifier != null && targetIdentifier.startsWith(EaafConstants.URN_PREFIX_WBPK)) {
-      for (Entry<String, String> mapper : EaafConstants.URN_WBPK_TARGET_X_TO_CALC_TARGET_MAPPER.entrySet()) {
-        if (targetIdentifier.startsWith(mapper.getKey())) {
-          String wbpkTarget = mapper.getValue() + targetIdentifier.substring(mapper.getKey().length()); 
-          log.trace("Find new wbPK target: {}. Replace it by: {}", targetIdentifier, wbpkTarget);
-          return wbpkTarget;
-      
-        }
-      }
-    }
-    
-    return targetIdentifier;    
-  }
-  
-  /**
-   * Remove prefixes from bPK target identifier and get only the SP specific part.
-   * 
-   * @param type full qualified bPK target with 'urn:publicid:gv.at:' prefix
-   * @return SP specific part, or full type if reduction is not supported 
-   */
-  @Nonnull
-  public static String removeBpkTypePrefix(@Nonnull final String type) {
-    Assert.isTrue(type != null, "bPKType is 'NULL'");
-    if (type.startsWith(EaafConstants.URN_PREFIX_WBPK)) {
-      return type.substring(EaafConstants.URN_PREFIX_WBPK.length());
-      
-    } else if (type.startsWith(EaafConstants.URN_PREFIX_CDID)) {
-      return type.substring(EaafConstants.URN_PREFIX_CDID.length());
-      
-    } else if (type.startsWith(EaafConstants.URN_PREFIX_EIDAS)) {
-      return type.substring(EaafConstants.URN_PREFIX_EIDAS.length());
-      
-    } else {
-      return type;
-      
-    }
-  }
-  
-  /**
-   * Builds the eIDAS from the given parameters.
-   *
-   * @param baseId             baseID of the citizen
-   * @param baseIdType         Type of the baseID
-   * @param sourceCountry      CountryCode of that country, which build the eIDAs
-   *                           ID
-   * @param destinationCountry CountryCode of that country, which receives the
-   *                           eIDAs ID
-   *
-   * @return Pair eIDAs/bPKType in a BASE64 encoding
-   * @throws EaafBuilderException if some input data are not valid
-   */
-  private static Pair<String, String> buildEidasIdentifer(final String baseId,
-      final String baseIdType, final String sourceCountry, final String destinationCountry)
-      throws EaafBuilderException {
-    String bpk = null;
-    String bpkType = null;
-
-    // check if we have been called by public sector application
-    if (baseIdType.startsWith(EaafConstants.URN_PREFIX_BASEID)) {
-      bpkType = EaafConstants.URN_PREFIX_EIDAS + sourceCountry + "+" + destinationCountry;
-      log.debug("Building eIDAS identification from: [identValue]+" + bpkType);
-      bpk = calculatebPKwbPK(baseId + "+" + bpkType);
-
-    } else { // if not, sector identification value is already calculated by BKU
-      log.debug("eIDAS eIdentifier already provided by BKU");
-      bpk = baseId;
-    }
-
-    if (StringUtils.isEmpty(bpk) || StringUtils.isEmpty(sourceCountry)
-        || StringUtils.isEmpty(destinationCountry)) {
-      throw new EaafBuilderException("builder.00",
-          new Object[] { "eIDAS-ID",
-              "Unvollständige Parameterangaben: identificationValue=" + bpk + ", Zielland="
-                  + destinationCountry + ", Ursprungsland=" + sourceCountry },
-          "eIDAS-ID: Unvollständige Parameterangaben: identificationValue=" + bpk + ", Zielland="
-              + destinationCountry + ", Ursprungsland=" + sourceCountry);
-    }
-
-    log.trace("eIDAS pseudonym generation finished. ");
-    final String eIdentifier = sourceCountry + "/" + destinationCountry + "/" + bpk;
-
-    return Pair.newInstance(eIdentifier, bpkType);
-  }
-  
-  private static String calculatebPKwbPK(final String basisbegriff) throws EaafBuilderException {
-    try {
-      final MessageDigest md = MessageDigest.getInstance("SHA-1");
-      final byte[] hash = md.digest(basisbegriff.getBytes("ISO-8859-1"));
-      final String hashBase64 =
-          new String(Base64Utils.encode(hash), "ISO-8859-1").replaceAll("\r\n", ""); // Base64Utils.encode(hash);
-      return hashBase64;
-
-    } catch (final Exception ex) {
-      throw new EaafBuilderException(ERROR_CODE_33, new Object[] {ex.toString() },
-          ex.getMessage(), ex);
-
-    }
-
-  }
-
-  private static byte[] encrypt(final byte[] inputBytes, final PublicKey publicKey)
-      throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
-      IllegalBlockSizeException, BadPaddingException {
-    byte[] result;
-    Cipher cipher = null;
-    try {
-      cipher = Cipher.getInstance("RSA/ECB/OAEPPadding"); // try with bouncycastle
-
-    } catch (final NoSuchAlgorithmException e) {
-      cipher = Cipher.getInstance("RSA/ECB/OAEP"); // try with iaik provider
-    }
-    cipher.init(Cipher.ENCRYPT_MODE, publicKey);
-    result = cipher.doFinal(inputBytes);
-
-    return result;
-  }
-
-  private static byte[] decrypt(final byte[] encryptedBytes, final PrivateKey privateKey)
-      throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
-      IllegalBlockSizeException, BadPaddingException {
-    byte[] result;
-    Cipher cipher = null;
-    try {
-      cipher = Cipher.getInstance("RSA/ECB/OAEPPadding"); // try with bouncycastle
-
-    } catch (final NoSuchAlgorithmException e) {
-      cipher = Cipher.getInstance("RSA/ECB/OAEP"); // try with iaik provider
-
-    }
-    cipher.init(Cipher.DECRYPT_MODE, privateKey);
-    result = cipher.doFinal(encryptedBytes);
-    return result;
-
-  }
-}