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   * 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.
   */
  package org.apache.camel.quarkus.component.mail;
  
  import java.io.IOException;
  import java.net.URISyntaxException;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  import java.util.stream.Collectors;
  import java.util.stream.IntStream;
  
  import io.quarkus.test.common.QuarkusTestResource;
  import io.quarkus.test.junit.QuarkusTest;
  import io.restassured.RestAssured;
  import io.restassured.http.ContentType;
  import io.smallrye.certs.Format;
  import io.smallrye.certs.junit5.Certificate;
  import jakarta.json.bind.JsonbBuilder;
  import org.apache.camel.ExchangePropertyKey;
  import org.apache.camel.ServiceStatus;
  import org.apache.camel.quarkus.test.support.certificate.CertificatesUtil;
  import org.apache.camel.quarkus.test.support.certificate.TestCertificates;
  import org.awaitility.Awaitility;
  import org.eclipse.angus.mail.util.MailConnectException;
  import org.eclipse.microprofile.config.Config;
  import org.eclipse.microprofile.config.ConfigProvider;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.ValueSource;
  
  import static org.apache.camel.quarkus.component.mail.CamelRoute.EMAIL_ADDRESS;
  import static org.apache.camel.quarkus.component.mail.CamelRoute.PASSWORD;
  import static org.apache.camel.quarkus.component.mail.CamelRoute.USERNAME;
  import static org.hamcrest.Matchers.is;
  
  @TestCertificates(certificates = {
          @Certificate(name = "greenmail", formats = {
                  Format.PKCS12 }, password = MailTestResource.KEYSTORE_PASSWORD)
  }, docker = true)
  @QuarkusTest
  @QuarkusTestResource(MailTestResource.class)
  public class MailTest {
      static final String GREENMAIL_CERTIFICATE_STORE_FILE = CertificatesUtil.keystoreFile("greenmail", "p12");
      private static final Pattern DELIMITER_PATTERN = Pattern.compile("\r\n[^\r\n]+");
      private static final String EXPECTED_TEMPLATE = "${delimiter}\r\n"
              + "Content-Type: text/plain; charset=UTF8; other-parameter=true\r\n"
              + "Content-Transfer-Encoding: 8bit\r\n"
              + "\r\n"
              + "Hello multipart!"
              + "${delimiter}\r\n"
              + "Content-Type: text/plain\r\n"
              + "Content-Transfer-Encoding: 8bit\r\n"
              + "Content-Disposition: attachment; filename=file.txt\r\n"
              + "Content-Description: Sample Attachment Data\r\n"
              + "X-AdditionalData: additional data\r\n"
              + "\r\n"
              + "Hello attachment!"
              + "${delimiter}--\r\n";
  
      @BeforeEach
      public void beforeEach() {
          // Configure users
          Config config = ConfigProvider.getConfig();
          String userJson = String.format("{ \"email\": \"%s\", \"login\": \"%s\", \"password\": \"%s\"}", EMAIL_ADDRESS,
                  USERNAME, PASSWORD);
          RestAssured.given()
                  .contentType(ContentType.JSON)
                  .body(userJson)
                  .post("http://" + config.getValue("mail.host", String.class) + ":"
                          + config.getValue("mail.api.port", Integer.class) + "/api/user")
                  .then()
                  .statusCode(200);
      }
  
      @AfterEach
      public void afterEach() {
          // Clear mailboxes
          Config config = ConfigProvider.getConfig();
          RestAssured.given()
                  .post("http://" + config.getValue("mail.host", String.class) + ":"
                          + config.getValue("mail.api.port", Integer.class) + "/api/service/reset")
                  .then()
                  .statusCode(200)
                  .body("message", is("Performed reset"));
  
          RestAssured.get("/mail/stopConsumers")
                  .then()
                  .statusCode(204);
  
          RestAssured.get("/mail/clear")
                  .then()
                  .statusCode(204);
      }
  
      @ParameterizedTest
      @ValueSource(strings = { "pop3", "imap" })
      public void receive(String protocol) {
          //start route
          startRoute("pop3".equals(protocol) ? CamelRoute.Routes.pop3ReceiveRoute : CamelRoute.Routes.imapReceiveRoute);
  
          send(false);
      }
  
      @ParameterizedTest
      @ValueSource(strings = { "pop3s", "imaps" })
      public void receiveSecured(String protocol) {
          //start route
          startRoute("pop3s".equals(protocol) ? CamelRoute.Routes.pop3sReceiveRoute : CamelRoute.Routes.imapsReceiveRoute);
  
          send(true);
      }
  
      private void send(boolean secured) {
          RestAssured.given()
                  .contentType(ContentType.TEXT)
                  .queryParam("subject", "Hello World")
                  .queryParam("from", "camel@localhost")
                  .queryParam("to", EMAIL_ADDRESS)
                  .queryParam("secured", secured)
                  .body("Hi how are you")
                  .post("/mail/send")
                  .then()
                  .statusCode(204);
  
          Awaitility.await().atMost(5, TimeUnit.SECONDS).until(() -> {
              //receive
              return (List<Map<String, Object>>) JsonbBuilder.create().fromJson(RestAssured.get("/mail/getReceived/")
                      .then()
                      .statusCode(200)
                      .extract().body().asString(), List.class);
          }, list -> list.size() == 1
                  && "Hi how are you".equals(list.get(0).get("content"))
                  && "Hello World".equals(list.get(0).get("subject")));
      }
  
      @Test
      public void mimeMultipartDataFormat() {
          final String actual = RestAssured.given()
                  .contentType(ContentType.TEXT)
                  .body("Hello multipart!")
                  .post("/mail/mimeMultipartMarshal/file.txt/Hello attachment!")
                  .then()
                  .statusCode(200)
                  .extract().body().asString();
          assertMultipart(EXPECTED_TEMPLATE, actual);
  
          final String unmarshalMarshal = RestAssured.given()
                  .contentType(ContentType.TEXT)
                  .body(actual)
                  .post("/mail/mimeMultipartUnmarshalMarshal")
                  .then()
                  .statusCode(200)
                  .extract().body().asString();
  
          assertMultipart(EXPECTED_TEMPLATE, unmarshalMarshal);
      }
  
      private void assertMultipart(final String expectedPattern, final String actual) {
          final Matcher m = DELIMITER_PATTERN.matcher(actual);
          if (!m.find()) {
              Assertions.fail("Mime delimiter not found in body: " + actual);
          }
          final String delim = m.group();
          final String expected = expectedPattern.replace("${delimiter}", delim);
          Assertions.assertEquals(expected, actual);
      }
  
      @Test
      public void testAttachments() throws IOException, URISyntaxException {
          startRoute(CamelRoute.Routes.pop3ReceiveRoute);
  
          String mailBodyContent = "Test mail content";
          String attachmentContent = "Attachment " + mailBodyContent;
          java.nio.file.Path attachmentPath = Files.createTempFile("cq-attachment", ".txt");
          Files.write(attachmentPath, attachmentContent.getBytes(StandardCharsets.UTF_8));
  
          try {
              RestAssured.given()
                      .contentType(ContentType.TEXT)
                      .queryParam("subject", "Test attachment message")
                      .queryParam("from", "camel@localhost")
                      .queryParam("to", EMAIL_ADDRESS)
                      .body(mailBodyContent)
                      .post("/mail/send/attachment/{fileName}", attachmentPath.toAbsolutePath().toString())
                      .then()
                      .statusCode(204);
  
              RestAssured.given()
                      .contentType(ContentType.TEXT)
                      .queryParam("subject", "Test attachment message")
                      .queryParam("from", "camel@localhost")
                      .queryParam("to", EMAIL_ADDRESS)
                      .body(mailBodyContent)
                      .post("/mail/send/attachment/{fileName}", "logo.jpeg")
                      .then()
                      .statusCode(204);
  
              Awaitility.await().atMost(20, TimeUnit.SECONDS).until(() -> {
                  return (List<Map<String, Object>>) JsonbBuilder.create().fromJson(RestAssured.get("/mail/getReceived/")
                          .then()
                          .statusCode(200)
                          .extract().body().asString(), List.class);
              },
                      list -> {
                          if (list.size() == 2) {
                              Map<String, Object> msg1 = list.get(0);
                              List<Map<String, Object>> attch1 = (List<Map<String, Object>>) msg1.get("attachments");
                              Map<String, Object> msg2 = list.get(1);
                              List<Map<String, Object>> attch2 = (List<Map<String, Object>>) msg2.get("attachments");
  
                              return "Test mail content".equals(msg1.get("content"))
                                      && "Test attachment message".equals(msg1.get("subject"))
                                      && attachmentPath.getFileName().toString().equals(attch1.get(0).get("attachmentFilename"))
                                      && attachmentContent.equals(attch1.get(0).get("attachmentContent"))
                                      && (attch1.get(0).get("attachmentContentType").toString().startsWith("text/plain")
                                              || attch1.get(0).get("attachmentContentType").toString()
                                                      .startsWith("application/octet-stream"))
  
                                      && "Test mail content".equals(msg2.get("content"))
                                      && "Test attachment message".equals(msg2.get("subject"))
                                      && "logo.jpeg".equals(attch2.get(0).get("attachmentFilename"))
                                      && (attch2.get(0).get("attachmentContentType").toString().startsWith("image/jpeg")
                                              || attch2.get(0).get("attachmentContentType").toString().toString()
                                                      .startsWith("application/octet-stream"));
                          }
                          return false;
                      });
  
          } finally {
              Files.deleteIfExists(attachmentPath);
          }
      }
  
      @Test
      public void testBatchConsumer() {
          //start route
          startRoute(CamelRoute.Routes.batchReceiveRoute);
          //send messages
          IntStream.range(1, 5).boxed().forEach(i -> RestAssured.given()
                  .contentType(ContentType.JSON)
                  .contentType(ContentType.TEXT)
                  .queryParam("subject", "Test batch consumer")
                  .queryParam("from", "camel@localhost")
                  .queryParam("to", EMAIL_ADDRESS)
                  .body("message " + i)
                  .post("/mail/send")
                  .then()
                  .statusCode(204));
  
          Awaitility.await().atMost(20, TimeUnit.SECONDS).until(() -> {
              //receive
              return (List<Map<String, Object>>) JsonbBuilder.create().fromJson(RestAssured.get("/mail/getReceived/")
                      .then()
                      .statusCode(200)
                      .extract().body().asString(), List.class);
          }, list -> list.size() == 4
  
                  && "message 1".equals(list.get(0).get("content"))
                  && "Test batch consumer".equals(list.get(0).get("subject"))
                  && "0".equals(list.get(0).get(ExchangePropertyKey.BATCH_INDEX.getName()).toString())
                  && "3".equals(list.get(0).get(ExchangePropertyKey.BATCH_SIZE.getName()).toString())
                  && !((Boolean) list.get(0).get(ExchangePropertyKey.BATCH_COMPLETE.getName()))
  
                  && "message 2".equals(list.get(1).get("content"))
                  && "Test batch consumer".equals(list.get(1).get("subject"))
                  && "1".equals(list.get(1).get(ExchangePropertyKey.BATCH_INDEX.getName()).toString())
                  && !((Boolean) list.get(1).get(ExchangePropertyKey.BATCH_COMPLETE.getName()))
  
                  && "message 3".equals(list.get(2).get("content"))
                  && "Test batch consumer".equals(list.get(2).get("subject"))
                  && "2".equals(list.get(2).get(ExchangePropertyKey.BATCH_INDEX.getName()).toString())
                  && ((Boolean) list.get(2).get(ExchangePropertyKey.BATCH_COMPLETE.getName()))
  
                  && "message 4".equals(list.get(3).get("content"))
                  && "Test batch consumer".equals(list.get(3).get("subject"))
                  && "0".equals(list.get(3).get(ExchangePropertyKey.BATCH_INDEX.getName()).toString()));
  
      }
  
      @Test
      public void testConverters() throws Exception {
          startRoute(CamelRoute.Routes.convertersRoute);
  
          RestAssured.given()
                  .contentType(ContentType.JSON)
                  .contentType(ContentType.TEXT)
                  .queryParam("subject", "Camel Rocks")
                  .queryParam("from", "camel@localhost")
                  .queryParam("to", EMAIL_ADDRESS)
                  .body("Hello World ")
                  .post("/mail/send")
                  .then()
                  .statusCode(204);
  
          Awaitility.await().atMost(20, TimeUnit.SECONDS).until(() -> {
              //receive
              return (List<Map<String, Object>>) JsonbBuilder.create().fromJson(
                      RestAssured.get("/mail/getReceivedAsString/")
                              .then()
                              .statusCode(200)
                              .extract().body().asString(),
                      List.class);
          }, list -> list.size() == 1
                  && ((String) list.get(0).get("body")).matches("Hello World\\s*"));
      }
  
      @Test
      public void testSort() {
          List<String> msgs = IntStream.range(1, 5).boxed().map(i -> ("message " + i)).collect(Collectors.toList());
          //messages will be sent in reverse order
          Collections.reverse(msgs);
  
          List<String> sorted = JsonbBuilder.create().fromJson(RestAssured.given()
                  .contentType(ContentType.JSON)
                  .body(JsonbBuilder.create().toJson(msgs))
                  .post("/mail/sort")
                  .then()
                  .statusCode(200)
                  .extract().body().asString(), List.class);
  
          Assertions.assertEquals(4, sorted.size());
          Assertions.assertTrue(sorted.get(0).contains("message 1"));
          Assertions.assertTrue(sorted.get(1).contains("message 2"));
          Assertions.assertTrue(sorted.get(2).contains("message 3"));
          Assertions.assertTrue(sorted.get(3).contains("message 4"));
      }
  
      @Test
      void testThrowMailConnectException() {
          RestAssured.get("/mail/exception")
                  .then()
                  .statusCode(500)
                  .body(is(MailConnectException.class.getName()));
      }
  
      // helper methods
  
      private void startRoute(CamelRoute.Routes route) {
          RestAssured.given()
                  .get("/mail/route/" + route.name() + "/start")
                  .then().statusCode(204);
  
          //wait for finish
          Awaitility.await().atMost(5, TimeUnit.SECONDS).until(
                  () -> {
                      String status = RestAssured
                              .get("/mail/route/" + route.name() + "/status")
                              .then()
                              .statusCode(200)
                              .extract().asString();
  
                      return status.equals(ServiceStatus.Started.name());
                  });
      }
  }
  