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/**
 * This file is part of GpgFrontend.
 *
 * GpgFrontend 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Foobar 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 Foobar.  If not, see <https://www.gnu.org/licenses/>.
 *
 * The initial version of the source code is inherited from gpg4usb-team.
 * Their source code version also complies with GNU General Public License.
 *
 * The source code version of this software was modified and released
 * by Saturneric<[email protected]> starting on May 12, 2021.
 *
 */

#include <gtest/gtest.h>

#include <string>
#include <vector>

#include "GpgFrontendTest.h"
#include "gpg/GpgConstants.h"
#include "gpg/function/BasicOperator.h"
#include "gpg/function/GpgKeyGetter.h"
#include "gpg/result_analyse/DecryptResultAnalyse.h"

using namespace GpgFrontend;

TEST_F(GpgCoreTest, CoreEncryptDecrTest) {
  auto encrypt_key = GpgKeyGetter::GetInstance(default_channel)
                         .GetPubkey("467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ByteArray encrypt_text = "Hello GpgFrontend!";
  ByteArrayPtr encr_out_data;
  GpgEncrResult e_result;
  KeyListPtr keys = std::make_unique<KeyArgsList>();
  keys->push_back(std::move(encrypt_key));
  auto err =
      BasicOperator::GetInstance(default_channel)
          .Encrypt(std::move(keys), encrypt_text, encr_out_data, e_result);
  ASSERT_EQ(e_result->invalid_recipients, nullptr);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);

  GpgDecrResult d_result;
  ByteArrayPtr decr_out_data;
  err = BasicOperator::GetInstance(default_channel)
            .Decrypt(*encr_out_data, decr_out_data, d_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_NE(d_result->recipients, nullptr);
  ASSERT_EQ(std::string(d_result->recipients->keyid), "F89C95A05088CC93");
  ASSERT_EQ(*decr_out_data, encrypt_text);
}

TEST_F(GpgCoreTest, CoreEncryptDecrTest_KeyNotFound_1) {
  ByteArrayPtr encr_out_data = std::make_unique<ByteArray>(
      "-----BEGIN PGP MESSAGE-----\n"
      "\n"
      "hQEMA6UM/S9sZ32MAQf9Fb6gp6nvgKTQBv2mmjXia6ODXYq6kNeLsPVzLCbHyWOs\n"
      "0GDED11R1NksA3EQxFf4fzLkDpbo68r5bWy7c28c99Fr68IRET19Tw6Gu65MQezD\n"
      "Rdzo1oVqmK9sfKqOT3+0S2H+suFYw5kfBztMZLVGGl9R9fOXdKcj0fqGs2br3e9D\n"
      "ArBFqq07Bae2DD1J8mckWB2x9Uem4vjRiY+vEJcEdAS1N5xu1n7qzzyDgcRcS34X\n"
      "PNBQeTrFMc2RS7mnip2DbyZVEjORobhguK6xZyqXXbvFacStGWDLptV3dcCn4JRO\n"
      "dIORyt5wugqAtgE4qEGTvr/pJ/oXPw4Wve/trece/9I/AR38vW8ntVmDa/hV75iZ\n"
      "4QGAhQ8grD4kq31GHXHUOmBX51XXW9SINmplC8elEx3R460EUZJjjb0OvTih+eZH\n"
      "=8n2H\n"
      "-----END PGP MESSAGE-----");

  GpgDecrResult d_result;
  ByteArrayPtr decr_out_data;
  auto err = BasicOperator::GetInstance(default_channel)
                 .Decrypt(*encr_out_data, decr_out_data, d_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_SECKEY);
  ASSERT_NE(d_result->recipients, nullptr);
  ASSERT_EQ(std::string(d_result->recipients->keyid), "A50CFD2F6C677D8C");
}

TEST_F(GpgCoreTest, CoreEncryptDecrTest_KeyNotFound_ResultAnalyse) {
  ByteArrayPtr encr_out_data = std::make_unique<ByteArray>(
      "-----BEGIN PGP MESSAGE-----\n"
      "\n"
      "hQEMA6UM/S9sZ32MAQf9Fb6gp6nvgKTQBv2mmjXia6ODXYq6kNeLsPVzLCbHyWOs\n"
      "0GDED11R1NksA3EQxFf4fzLkDpbo68r5bWy7c28c99Fr68IRET19Tw6Gu65MQezD\n"
      "Rdzo1oVqmK9sfKqOT3+0S2H+suFYw5kfBztMZLVGGl9R9fOXdKcj0fqGs2br3e9D\n"
      "ArBFqq07Bae2DD1J8mckWB2x9Uem4vjRiY+vEJcEdAS1N5xu1n7qzzyDgcRcS34X\n"
      "PNBQeTrFMc2RS7mnip2DbyZVEjORobhguK6xZyqXXbvFacStGWDLptV3dcCn4JRO\n"
      "dIORyt5wugqAtgE4qEGTvr/pJ/oXPw4Wve/trece/9I/AR38vW8ntVmDa/hV75iZ\n"
      "4QGAhQ8grD4kq31GHXHUOmBX51XXW9SINmplC8elEx3R460EUZJjjb0OvTih+eZH\n"
      "=8n2H\n"
      "-----END PGP MESSAGE-----");

  GpgDecrResult d_result;
  ByteArrayPtr decr_out_data;
  auto err = BasicOperator::GetInstance(default_channel)
                 .Decrypt(*encr_out_data, decr_out_data, d_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_SECKEY);
  ASSERT_NE(d_result->recipients, nullptr);
  ASSERT_EQ(std::string(d_result->recipients->keyid), "A50CFD2F6C677D8C");

  DecryptResultAnalyse analyse{err, d_result};
  analyse.analyse();
  ASSERT_EQ(analyse.getStatus(), -1);
  ASSERT_FALSE(analyse.getResultReport().empty());
}

TEST_F(GpgCoreTest, CoreSignVerifyNormalTest) {
  auto encrypt_key = GpgKeyGetter::GetInstance(default_channel)
                         .GetPubkey("467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ByteArray sign_text = "Hello GpgFrontend!";
  ByteArrayPtr sign_out_data;
  GpgSignResult s_result;
  KeyListPtr keys = std::make_unique<KeyArgsList>();
  keys->push_back(std::move(encrypt_key));
  auto err = BasicOperator::GetInstance(default_channel)
                 .Sign(std::move(keys), sign_text, sign_out_data,
                       GPGME_SIG_MODE_NORMAL, s_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_EQ(s_result->invalid_signers, nullptr);

  GpgVerifyResult v_result;
  ByteArrayPtr sign_buff = nullptr;
  err = BasicOperator::GetInstance(default_channel)
            .Verify(*sign_out_data, sign_buff, v_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_NE(v_result->signatures, nullptr);
  ASSERT_EQ(std::string(v_result->signatures->fpr),
            "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ASSERT_EQ(v_result->signatures->next, nullptr);
}

TEST_F(GpgCoreTest, CoreSignVerifyDetachTest) {
  auto encrypt_key = GpgKeyGetter::GetInstance(default_channel)
                         .GetPubkey("467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ByteArray sign_text = "Hello GpgFrontend!";
  ByteArrayPtr sign_out_data;
  GpgSignResult s_result;
  KeyListPtr keys = std::make_unique<KeyArgsList>();
  keys->push_back(std::move(encrypt_key));
  auto err = BasicOperator::GetInstance(default_channel)
                 .Sign(std::move(keys), sign_text, sign_out_data,
                       GPGME_SIG_MODE_DETACH, s_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_EQ(s_result->invalid_signers, nullptr);

  GpgVerifyResult v_result;
  err = BasicOperator::GetInstance(default_channel)
            .Verify(sign_text, sign_out_data, v_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_NE(v_result->signatures, nullptr);
  ASSERT_EQ(std::string(v_result->signatures->fpr),
            "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ASSERT_EQ(v_result->signatures->next, nullptr);
}

TEST_F(GpgCoreTest, CoreSignVerifyClearTest) {
  auto sign_key = GpgKeyGetter::GetInstance(default_channel)
                      .GetKey("467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ByteArray sign_text = "Hello GpgFrontend!";
  ByteArrayPtr sign_out_data;
  GpgSignResult s_result;
  KeyListPtr keys = std::make_unique<KeyArgsList>();
  keys->push_back(std::move(sign_key));
  auto err = BasicOperator::GetInstance(default_channel)
                 .Sign(std::move(keys), sign_text, sign_out_data,
                       GPGME_SIG_MODE_CLEAR, s_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_EQ(s_result->invalid_signers, nullptr);

  GpgVerifyResult v_result;
  ByteArrayPtr sign_buff = nullptr;
  err = BasicOperator::GetInstance(default_channel)
            .Verify(*sign_out_data, sign_buff, v_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_NE(v_result->signatures, nullptr);
  ASSERT_EQ(std::string(v_result->signatures->fpr),
            "467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  ASSERT_EQ(v_result->signatures->next, nullptr);
}

TEST_F(GpgCoreTest, CoreEncryptSignDecrVerifyTest) {
  auto encrypt_key = GpgKeyGetter::GetInstance(default_channel)
                         .GetPubkey("467F14220CE8DCF780CF4BAD8465C55B25C9B7D1");
  auto sign_key = GpgKeyGetter::GetInstance(default_channel)
                      .GetKey("8933EB283A18995F45D61DAC021D89771B680FFB");
  //   Question?
  //   ASSERT_FALSE(encrypt_key.is_private_key());
  ASSERT_TRUE(sign_key.is_private_key());
  ASSERT_TRUE(sign_key.CanSignActual());
  ByteArray encrypt_text = "Hello GpgFrontend!";
  ByteArrayPtr encr_out_data;
  GpgEncrResult e_result;
  GpgSignResult s_result;

  KeyListPtr keys = std::make_unique<KeyArgsList>(),
             sign_keys = std::make_unique<KeyArgsList>();
  keys->push_back(std::move(encrypt_key));
  sign_keys->push_back(std::move(sign_key));

  auto err = BasicOperator::GetInstance(default_channel)
                 .EncryptSign(std::move(keys), std::move(sign_keys),
                              encrypt_text, encr_out_data, e_result, s_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_EQ(e_result->invalid_recipients, nullptr);
  ASSERT_EQ(s_result->invalid_signers, nullptr);

  GpgDecrResult d_result;
  GpgVerifyResult v_result;
  ByteArrayPtr decr_out_data = nullptr;
  err = BasicOperator::GetInstance(default_channel)
            .DecryptVerify(*encr_out_data, decr_out_data, d_result, v_result);
  ASSERT_EQ(check_gpg_error_2_err_code(err), GPG_ERR_NO_ERROR);
  ASSERT_NE(d_result->recipients, nullptr);
  ASSERT_EQ(std::string(d_result->recipients->keyid), "F89C95A05088CC93");
  ASSERT_EQ(*decr_out_data, encrypt_text);
  ASSERT_NE(v_result->signatures, nullptr);
  ASSERT_EQ(std::string(v_result->signatures->fpr),
            "8933EB283A18995F45D61DAC021D89771B680FFB");
  ASSERT_EQ(v_result->signatures->next, nullptr);
}