src/main/java/net/pterodactylus/rhynodge/queries/HttpQuery.java

   1 /*
   2  * Rhynodge - HttpQuery.java - Copyright © 2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.rhynodge.queries;
  19
  20 import java.io.IOException;
  21 import java.util.concurrent.TimeUnit;
  22
  23 import net.pterodactylus.rhynodge.Query;
  24 import net.pterodactylus.rhynodge.State;
  25 import net.pterodactylus.rhynodge.states.FailedState;
  26 import net.pterodactylus.rhynodge.states.HttpState;
  27
  28 import org.apache.http.HttpEntity;
  29 import org.apache.http.HttpHost;
  30 import org.apache.http.HttpResponse;
  31 import org.apache.http.HttpStatus;
  32 import org.apache.http.client.HttpClient;
  33 import org.apache.http.client.methods.HttpGet;
  34 import org.apache.http.client.protocol.ResponseContentEncoding;
  35 import org.apache.http.impl.client.HttpClientBuilder;
  36 import org.apache.http.params.HttpConnectionParams;
  37 import org.apache.http.util.EntityUtils;
  38
  39 /**
  40  * {@link Query} that performs an HTTP GET request to a fixed uri.
  41  *
  42  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  43  */
  44 public class HttpQuery implements Query {
  45
  46         private final String uri;
  47         private final String proxyHost;
  48         private final int proxyPort;
  49
  50         public HttpQuery(String uri) {
  51                 this(uri, null, -1);
  52         }
  53
  54         public HttpQuery(String uri, String proxyHost, int proxyPort) {
  55                 this.uri = uri;
  56                 this.proxyHost = proxyHost;
  57                 this.proxyPort = proxyPort;
  58         }
  59
  60         //
  61         // QUERY METHODS
  62         //
  63
  64         /**
  65          * {@inheritDoc}
  66          */
  67         @Override
  68         @SuppressWarnings("deprecation")
  69         public State state() {
  70                 HttpClientBuilder httpClientBuilder = HttpClientBuilder.create()
  71                                 .setSSLHostnameVerifier((hostname, session) -> true)
  72                                 .addInterceptorFirst(new ResponseContentEncoding());
  73                 if ((proxyHost != null) && (proxyPort != -1)) {
  74                         httpClientBuilder.setProxy(new HttpHost(proxyHost, proxyPort));
  75                 }
  76                 HttpClient httpClient = httpClientBuilder.build();
  77                 HttpGet get = new HttpGet(uri);
  78
  79                 try {
  80                         /* make request. */
  81                         get.addHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Ubuntu/12.04 Chromium/20.0.1132.47 Chrome/20.0.1132.47 Safari/536.11");
  82                         HttpConnectionParams.setConnectionTimeout(get.getParams(), (int) TimeUnit.SECONDS.toMillis(300));
  83                         HttpConnectionParams.setSoTimeout(get.getParams(), (int) TimeUnit.SECONDS.toMillis(300));
  84                         HttpResponse response = httpClient.execute(get);
  85                         if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
  86                                 return new FailedState(new IllegalStateException(String.format("Invalid HTTP Status: %d", response.getStatusLine().getStatusCode())));
  87                         }
  88                         HttpEntity entity = response.getEntity();
  89
  90                         /* yay, done! */
  91                         return new HttpState(uri, response.getStatusLine().getStatusCode(), entity.getContentType().getValue(), EntityUtils.toByteArray(entity));
  92
  93                 } catch (IOException ioe1) {
  94                         return new FailedState(ioe1);
  95                 }
  96         }
  97
  98 }