fix(SSL): Resolução do problema relatado na Issue #12 que ocorria err…

…o durante a requisição dos endpoints dos jogos, por não conseguir validar o certificado SSL do site da caixa.

src/main/java/com/ueby/oss/loteria/crawlers/service/AbstractCrawlerService.java

@@ -1,28 +1,61 @@
 package com.ueby.oss.loteria.crawlers.service;
 
 import com.ueby.oss.loteria.crawlers.exception.CaixaWebCrawlerException;
-import org.apache.http.client.fluent.Request;
-import org.apache.http.client.fluent.Response;
-
+import com.ueby.oss.loteria.crawlers.util.SSLHelper;
 import java.io.IOException;
 import java.util.concurrent.TimeUnit;
+import lombok.extern.log4j.Log4j2;
+import org.apache.http.client.fluent.Executor;
+import org.apache.http.client.fluent.Request;
+import org.apache.http.client.fluent.Response;
+import org.apache.http.config.Registry;
+import org.apache.http.config.RegistryBuilder;
+import org.apache.http.conn.socket.ConnectionSocketFactory;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 
 /**
  * @author Algarves, Khristian
  */
+@Log4j2
 public abstract class AbstractCrawlerService {
 
   protected static final Long REQUEST_TIMEOUT = TimeUnit.MILLISECONDS.toSeconds(30); // 30sec
 
-  protected Response get(String url) throws CaixaWebCrawlerException {
+  protected Response get(String url) throws CaixaWebCrawlerException, IOException {
+    CloseableHttpClient httpClient = createHttpClient();
     try {
-      return Request.Get(url)
-          .connectTimeout(REQUEST_TIMEOUT.intValue())
-          .socketTimeout(REQUEST_TIMEOUT.intValue())
-          .execute();
+      Executor executor = Executor.newInstance(httpClient);
+      return executor.execute(
+          Request.Get(url)
+            .connectTimeout(REQUEST_TIMEOUT.intValue())
+            .socketTimeout(REQUEST_TIMEOUT.intValue())
+      );
     } catch (IOException ie) {
+      log.error("An error occurred during the request - {}", url);
       throw new CaixaWebCrawlerException(ie.getLocalizedMessage(), ie);
     }
   }
 
+  private static CloseableHttpClient createHttpClient() {
+    PoolingHttpClientConnectionManager connectionManager = createConnectionManager();
+    return HttpClientBuilder.create()
+        .setConnectionManager(connectionManager)
+        .build();
+  }
+
+  private static PoolingHttpClientConnectionManager createConnectionManager() {
+    final Registry<ConnectionSocketFactory> sfr = RegistryBuilder.<ConnectionSocketFactory>create()
+        .register("https", SSLHelper.socketFactory())
+        .build();
+
+    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(
+        sfr);
+    connectionManager.setDefaultMaxPerRoute(100);
+    connectionManager.setMaxTotal(200);
+    connectionManager.setValidateAfterInactivity(1000);
+    return connectionManager;
+  }
+
 }

src/main/java/com/ueby/oss/loteria/crawlers/service/CaixaWebCrawlerService.java

@@ -55,8 +55,7 @@ public CaixaWebCrawlerService byContestNumber(final int concourse) {
   /**
    * Call whenever the result is invalid for the request.
    *
-   * @throws InterruptedException     When the process is interrupted.
-   * @throws CaixaWebCrawlerException If Number of attempts exhausted.
+   * @throws InterruptedException When the process is interrupted.
    */
   private void recall() throws InterruptedException {
     if (attempts <= MAX_ATTEMPTS) {
@@ -98,7 +97,7 @@ private void call() {
             responseStatus.getReasonPhrase());
       }
     } catch (CaixaWebCrawlerException e) {
-      log.error(e.getLocalizedMessage(), e);
+      log.error(e.getMessage(), e);
       try {
         recall();
       } catch (InterruptedException ie) {

src/main/java/com/ueby/oss/loteria/crawlers/util/SSLHelper.java

@@ -0,0 +1,35 @@
+package com.ueby.oss.loteria.crawlers.util;
+
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.X509Certificate;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+
+public class SSLHelper {
+
+  public static SSLConnectionSocketFactory socketFactory() {
+    TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
+      public java.security.cert.X509Certificate[] getAcceptedIssuers() {
+        return new X509Certificate[0];
+      }
+
+      public void checkClientTrusted(X509Certificate[] certs, String authType) {
+      }
+
+      public void checkServerTrusted(X509Certificate[] certs, String authType) {
+      }
+    } };
+
+    try {
+      SSLContext sslContext = SSLContext.getInstance("SSL");
+      sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
+
+      return new SSLConnectionSocketFactory(sslContext);
+    } catch (NoSuchAlgorithmException | KeyManagementException e) {
+      throw new RuntimeException("Failed to create a SSL socket factory", e);
+    }
+  }
+}