src/org/cacert/gigi/ping/HTTPFetch.java

   1 package org.cacert.gigi.ping;
   2
   3 import java.io.BufferedReader;
   4 import java.io.IOException;
   5 import java.io.InputStreamReader;
   6 import java.net.HttpURLConnection;
   7 import java.net.URL;
   8
   9 public class HTTPFetch extends DomainPinger {
  10
  11     @Override
  12     public String ping(String domain, String expToken) {
  13         try {
  14             String[] tokenParts = expToken.split(":", 2);
  15             URL u = new URL("http://" + domain + "/cacert_" + tokenParts[0] + ".txt");
  16             System.out.println(u.toString());
  17             HttpURLConnection huc = (HttpURLConnection) u.openConnection();
  18             if (huc.getResponseCode() != 200) {
  19                 return "Invalid status code.";
  20             }
  21             BufferedReader br = new BufferedReader(new InputStreamReader(huc.getInputStream(), "UTF-8"));
  22             String line = br.readLine();
  23             if (line == null) {
  24                 return "No response from your server.";
  25             }
  26             if (line.trim().equals(tokenParts[1])) {
  27                 return PING_SUCCEDED;
  28             }
  29             return "Challange tokens differed.";
  30         } catch (IOException e) {
  31             e.printStackTrace();
  32             return "Connection closed.";
  33         }
  34     }
  35 }