/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
#include "fw_dunit.hpp"
#include "ThinClientHelper.hpp"
#include <ace/OS.h>
#include <ace/High_Res_Timer.h>

#include "ThinClientSecurity.hpp"

/* Test Coverage DH Algo
BF1 - Blowfish:128 , BF2 - Blowfish:448
AES1- AES:128,  AES2- AES:192, AES3- AES:256
DES- DESede:192

ATTENTION:  Blowfish:448, AES:192 and AES:256 needs Unlimited security strength
policy. For this
1- Downloaded jce_policy-6.zip from
http://java.sun.com/javase/downloads/index.jsp.
2- Unzip and replace 2 jar files in $gfe.dir/jre/lib/security folder.
   Above mentioned Algo are commented as we can't ship product folder with above
mentioned Jar files.
 To test this test fully, please make above changes and uncomment related Algo
portion in this test.
*/

#define BF1 "Blowfish:128"
#define BF2 "Blowfish:448"
#define AES1 "AES:128"
#define AES2 "AES:192"
#define AES3 "AES:256"
#define DES "DESede"

#define CLIENT1 s1p1
#define CLIENT2 s1p2
#define CLIENT3 s2p1
#define LOCATORSERVER s2p2

#define CORRECT_CREDENTIALS 'C'
#define INCORRECT_CREDENTIALS 'I'

using namespace apache::geode::client;
using namespace test;

const char* locHostPort =
    CacheHelper::getLocatorHostPort(isLocator, isLocalServer, 1);
const char* regionNamesAuth[] = {"DistRegionAck", "DistRegionNoAck"};
std::shared_ptr<CredentialGenerator> credentialGeneratorHandler;

std::string getXmlPath() {
  char xmlPath[1000] = {'\0'};
  const char* path = ACE_OS::getenv("TESTSRC");
  ASSERT(path != nullptr,
         "Environment variable TESTSRC for test source directory is not set.");
  strncpy(xmlPath, path, strlen(path) - strlen("cppcache"));
  strcat(xmlPath, "xml/Security/");
  return std::string(xmlPath);
}

void initCredentialGenerator() {
  static int loopNum = 1;

  switch (loopNum) {
    case 1: {
      credentialGeneratorHandler = CredentialGenerator::create("DUMMY");
      LOG("Creating Dummy Credential Generator");
      break;
    }
    case 2: {
      credentialGeneratorHandler = CredentialGenerator::create("LDAP");
      LOG("Creating LDAP Credential Generator");
      break;
    }
    default:
    case 3: {
      credentialGeneratorHandler = CredentialGenerator::create("PKCS");
      LOG("Creating PKCS Credential Generator");
      break;
    }
  }

  if (credentialGeneratorHandler == nullptr) {
    FAIL("credentialGeneratorHandler is nullptr");
  }

  loopNum++;
  if (loopNum > 3) loopNum = 1;
}

void initClientAuth(char credentialsType, const char* dhAlgo) {
  printf("Initializing Client with %s credential and %s DH Algo\n",
         credentialsType == CORRECT_CREDENTIALS ? "Valid" : "Invalid", dhAlgo);

 auto config = Properties::create();

  config->insert("security-client-dhalgo", dhAlgo);
  std::string testsrc = ACE_OS::getenv("TESTSRC");
  testsrc += "/keystore/geode.pem";
  printf("KeyStore Path is: %s", testsrc.c_str());
  config->insert("security-client-kspath", testsrc.c_str());

  if (credentialGeneratorHandler == nullptr) {
    FAIL("credentialGeneratorHandler is nullptr");
  }
  bool insertAuthInit = true;
  switch (credentialsType) {
    case CORRECT_CREDENTIALS:
      credentialGeneratorHandler->getValidCredentials(config);
      config->insert("security-password",
                     config->find("security-username")->value().c_str());
      printf("Username is %s and Password is %s ",
             config->find("security-username")->value().c_str(),
             config->find("security-password")->value().c_str());
      break;
    case INCORRECT_CREDENTIALS:
      credentialGeneratorHandler->getInvalidCredentials(config);
      config->insert("security-password", "junk");
      printf("Username is %s and Password is %s ",
             config->find("security-username")->value().c_str(),
             config->find("security-password")->value().c_str());
      break;
    default:
      insertAuthInit = false;
      break;
  }
  if (insertAuthInit) {
    credentialGeneratorHandler->getAuthInit(config);
  }

  try {
    initClient(true, config);
  } catch (...) {
    throw;
  }
}

void InitIncorrectClients(const char* dhAlgo) {
  try {
    initClientAuth(INCORRECT_CREDENTIALS, dhAlgo);
  } catch (const apache::geode::client::Exception& other) {
    LOG(other.getStackTrace());
    LOG(other.what());
  }

  try {
    createRegionForSecurity(regionNamesAuth[0], USE_ACK, true);
    FAIL("Should have thrown AuthenticationFailedException.");
  } catch (const apache::geode::client::AuthenticationFailedException& other) {
    LOG(other.getStackTrace());
    LOG(other.what());
  } catch (const apache::geode::client::Exception& other) {
    LOG(other.getStackTrace());
    LOG(other.what());
    FAIL("Only AuthenticationFailedException is expected");
  }
  LOG("InitIncorrectClients Completed");
}

void InitCorrectClients(const char* dhAlgo) {
  try {
    initClientAuth(CORRECT_CREDENTIALS, dhAlgo);
  } catch (const apache::geode::client::Exception& other) {
    LOG(other.getStackTrace());
    LOG(other.what());
  }
  try {
    createRegionForSecurity(regionNamesAuth[0], USE_ACK, true);
    createEntry(regionNamesAuth[0], keys[0], vals[0]);
    updateEntry(regionNamesAuth[0], keys[0], nvals[0]);
  } catch (const apache::geode::client::Exception& other) {
    LOG(other.getStackTrace());
    FAIL(other.what());
  }
  LOG("Handshake  and  Authentication successfully completed");
}

void DoNetSearch() {
  try {
    createRegionForSecurity(regionNamesAuth[1], USE_ACK, true);
   auto regPtr0 = getHelper()->getRegion(regionNamesAuth[0]);
   auto keyPtr = CacheableKey::create(keys[0]);
   auto checkPtr =
       std::dynamic_pointer_cast<CacheableString>(regPtr0->get(keyPtr));
   if (checkPtr != nullptr && !strcmp(nvals[0], checkPtr->value().c_str())) {
     LOG("checkPtr is not null");
     char buf[1024];
     sprintf(buf, "In net search, get returned %s for key %s",
             checkPtr->value().c_str(), keys[0]);
     LOG(buf);
   } else {
     LOG("checkPtr is nullptr");
    }
  } catch (const apache::geode::client::Exception& other) {
    LOG(other.getStackTrace());
    FAIL(other.what());
  }
  LOG("Handshake  and  Authentication successfully completed after FailOver");
}

void initSecurityServer(int instance) {
  std::string cmdServerAuthenticator;
  if (credentialGeneratorHandler == nullptr) {
    FAIL("credentialGeneratorHandler is nullptr");
  }

  try {
    if (isLocalServer) {
      cmdServerAuthenticator = credentialGeneratorHandler->getServerCmdParams(
          "authenticator", getXmlPath());

      std::string testsrc = ACE_OS::getenv("TESTSRC");
      if (instance == 1) {
        testsrc += "/keystore/geode1.keystore";
        cmdServerAuthenticator += " security-server-kspath=";
        cmdServerAuthenticator += testsrc;
        cmdServerAuthenticator +=
            " security-server-ksalias=geode1 "
            "security-server-kspasswd=geode";
      } else if (instance == 2) {
        testsrc += "/keystore/geode2.keystore";
        cmdServerAuthenticator += " security-server-kspath=";
        cmdServerAuthenticator += testsrc;
        cmdServerAuthenticator +=
            " security-server-ksalias=geode2 "
            "security-server-kspasswd=geode";
      }

      printf("Input to server cmd is -->  %s\n",
             cmdServerAuthenticator.c_str());
      CacheHelper::initServer(
          instance, nullptr, locHostPort,
          const_cast<char*>(cmdServerAuthenticator.c_str()));
    }
  } catch (...) {
    printf("this is some exception");
  }
}

DUNIT_TASK_DEFINITION(LOCATORSERVER, CreateLocator)
  {
    if (isLocator) CacheHelper::initLocator(1);
    LOG("Locator1 started");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(LOCATORSERVER, CreateServer1)
  {
    initCredentialGenerator();
    initSecurityServer(1);
    LOG("Server1 started");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(LOCATORSERVER, CreateServer2)
  {
    initSecurityServer(2);
    LOG("Server2 started");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, C1UpDownIncorrectBF1)
  {
    initCredentialGenerator();
    InitIncorrectClients(BF1);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, C2UpDownIncorrectAES1)
  {
    initCredentialGenerator();
    InitIncorrectClients(AES1);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, C3UpDownIncorrectDES)
  {
    initCredentialGenerator();
    InitIncorrectClients(DES);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, C1UpCorrectBF1)
  {
    InitCorrectClients(BF1);
    LOG("Client created");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, C2UpCorrectAES1)
  {
    InitCorrectClients(AES1);
    LOG("Client created");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, C3UpCorrectDES)
  {
    InitCorrectClients(DES);
    LOG("Client created");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, C1UpDownIncorrectBF2)
  {
    InitIncorrectClients(BF2);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, C2UpDownIncorrectAES2)
  {
    InitIncorrectClients(AES2);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, C3UpDownIncorrectAES3)
  {
    InitIncorrectClients(AES3);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, C1UpDownCorrectBF2)
  {
    InitCorrectClients(BF2);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, C2UpDownCorrectAES2)
  {
    InitCorrectClients(AES2);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, C3UpDownCorrectAES3)
  {
    InitCorrectClients(AES3);
    LOG("Client created");
    cleanProc();
    LOG("Client closed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, C1NetSearch)
  {
    SLEEP(1000);
    DoNetSearch();
    LOG("StepFive Completed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, C2NetSearch)
  {
    DoNetSearch();
    LOG("StepFive Completed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, C3NetSearch)
  {
    DoNetSearch();
    LOG("StepFive Completed");
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT1, CloseCache1)
  { cleanProc(); }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT2, CloseCache2)
  { cleanProc(); }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(CLIENT3, CloseCache3)
  { cleanProc(); }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(LOCATORSERVER, CloseServer1)
  {
    if (isLocalServer) {
      CacheHelper::closeServer(1);
      LOG("SERVER1 stopped");
    }
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(LOCATORSERVER, CloseServer2)
  {
    if (isLocalServer) {
      CacheHelper::closeServer(2);
      LOG("SERVER2 stopped");
    }
  }
END_TASK_DEFINITION

DUNIT_TASK_DEFINITION(LOCATORSERVER, CloseLocator)
  {
    if (isLocator) {
      CacheHelper::closeLocator(1);
      LOG("Locator1 stopped");
    }
  }
END_TASK_DEFINITION

void doThinClientSecurityDH() {
  CALL_TASK(CreateLocator);
  CALL_TASK(CreateServer1);
  CALL_TASK(C1UpDownIncorrectBF1);
  CALL_TASK(C2UpDownIncorrectAES1);
  CALL_TASK(C3UpDownIncorrectDES);
  CALL_TASK(C1UpCorrectBF1);
  CALL_TASK(C2UpCorrectAES1);
  CALL_TASK(C3UpCorrectDES);
  CALL_TASK(CreateServer2);
  CALL_TASK(CloseServer1);
  CALL_TASK(C1NetSearch);
  CALL_TASK(C2NetSearch);
  CALL_TASK(C3NetSearch);
  CALL_TASK(CloseCache1);
  CALL_TASK(CloseCache2);
  CALL_TASK(CloseCache3);

  // Commented for Unlimited Security strength policy : See comment at top of
  // testThinClientSecurityDH.cpp
  // CALL_TASK(C1UpDownIncorrectBF2);
  // CALL_TASK(C2UpDownIncorrectAES2);
  // CALL_TASK(C3UpDownIncorrectAES3);
  // CALL_TASK(C1UpDownCorrectBF2);
  // CALL_TASK(C2UpDownCorrectAES2);
  // CALL_TASK(C3UpDownCorrectAES3);
  CALL_TASK(CloseServer2);
  CALL_TASK(CloseLocator);
}

DUNIT_MAIN
  { doThinClientSecurityDH(); }
END_MAIN