Exemplo n.º 1
0
    @Override
    public void parse() {
      if (Constants.MIMETYPE_PAYMENTREQUEST.equals(inputType)) {
        ByteArrayOutputStream baos = null;

        try {
          baos = new ByteArrayOutputStream();
          Io.copy(is, baos);
          parseAndHandlePaymentRequest(baos.toByteArray());
        } catch (final IOException x) {
          log.info("i/o error while fetching payment request", x);

          error(R.string.input_parser_io_error, x.getMessage());
        } catch (final PkiVerificationException x) {
          log.info("got unverifyable payment request", x);

          error(R.string.input_parser_unverifyable_paymentrequest, x.getMessage());
        } catch (final PaymentRequestException x) {
          log.info("got invalid payment request", x);

          error(R.string.input_parser_invalid_paymentrequest, x.getMessage());
        } finally {
          try {
            if (baos != null) baos.close();
          } catch (IOException x) {
            x.printStackTrace();
          }

          try {
            is.close();
          } catch (IOException x) {
            x.printStackTrace();
          }
        }
      } else {
        cannotClassify(inputType);
      }
    }
  private static float requestDogeBtcConversion(int provider) {
    HttpURLConnection connection = null;
    Reader reader = null;
    URL providerUrl;
    switch (provider) {
      case 0:
        providerUrl = DOGEPOOL_URL;
        break;
      case 1:
        providerUrl = VIRCUREX_URL;
        break;
      default:
        providerUrl = DOGEPOOL_URL;
        break;
    }

    try {
      connection = (HttpURLConnection) providerUrl.openConnection();
      connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS);
      connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS);
      connection.connect();

      final int responseCode = connection.getResponseCode();
      if (responseCode == HttpURLConnection.HTTP_OK) {
        reader =
            new InputStreamReader(
                new BufferedInputStream(connection.getInputStream(), 1024), Constants.UTF_8);
        final StringBuilder content = new StringBuilder();
        Io.copy(reader, content);

        try {
          float rate;
          switch (provider) {
            case 0:
              /*rate = Float.parseFloat(
              json.getJSONObject("return")
                  .getJSONObject("markets")
                  .getJSONObject("DOGE")
                  .getString("lasttradeprice"));*/
              // For later use.
              rate = Float.parseFloat(content.toString());
              break;
            case 1:
              final JSONObject json = new JSONObject(content.toString());
              rate = Float.parseFloat(json.getString("value"));
              break;
            default:
              return -1;
          }
          return rate;
        } catch (NumberFormatException e) {
          log.debug(
              "Couldn't get the current exchnage rate from provider " + String.valueOf(provider));
          return -1;
        }

      } else {
        log.debug("http status " + responseCode + " when fetching " + providerUrl);
      }
    } catch (final Exception x) {
      log.debug("problem reading exchange rates", x);
    } finally {
      if (reader != null) {
        try {
          reader.close();
        } catch (final IOException x) {
          // swallow
        }
      }

      if (connection != null) connection.disconnect();
    }

    return -1;
  }
  private static Map<String, ExchangeRate> requestExchangeRates(
      final URL url,
      float dogeBtcConversion,
      final String userAgent,
      final String source,
      final String... fields) {
    final long start = System.currentTimeMillis();

    HttpURLConnection connection = null;
    Reader reader = null;

    try {
      connection = (HttpURLConnection) url.openConnection();

      connection.setInstanceFollowRedirects(false);
      connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS);
      connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS);
      connection.addRequestProperty("User-Agent", userAgent);
      connection.addRequestProperty("Accept-Encoding", "gzip");
      connection.connect();

      final int responseCode = connection.getResponseCode();
      if (responseCode == HttpURLConnection.HTTP_OK) {
        final String contentEncoding = connection.getContentEncoding();

        InputStream is = new BufferedInputStream(connection.getInputStream(), 1024);
        if ("gzip".equalsIgnoreCase(contentEncoding)) is = new GZIPInputStream(is);

        reader = new InputStreamReader(is, Constants.UTF_8);
        final StringBuilder content = new StringBuilder();
        final long length = Io.copy(reader, content);

        final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>();

        final JSONObject head = new JSONObject(content.toString());
        for (final Iterator<String> i = head.keys(); i.hasNext(); ) {
          final String currencyCode = i.next();
          if (!"timestamp".equals(currencyCode)) {
            final JSONObject o = head.getJSONObject(currencyCode);

            for (final String field : fields) {
              final String rate = o.optString(field, null);

              if (rate != null) {
                try {
                  BigDecimal btcRate = new BigDecimal(GenericUtils.toNanoCoins(rate, 0));
                  BigInteger dogeRate =
                      btcRate.multiply(BigDecimal.valueOf(dogeBtcConversion)).toBigInteger();

                  if (dogeRate.signum() > 0) {
                    rates.put(currencyCode, new ExchangeRate(currencyCode, dogeRate, source));
                    break;
                  }
                } catch (final ArithmeticException x) {
                  log.warn(
                      "problem fetching {} exchange rate from {} ({}): {}",
                      currencyCode,
                      url,
                      contentEncoding,
                      x.getMessage());
                }
              }
            }
          }
        }

        log.info(
            "fetched exchange rates from {} ({}), {} chars, took {} ms",
            url,
            contentEncoding,
            length,
            System.currentTimeMillis() - start);

        return rates;
      } else {
        log.warn("http status {} when fetching {}", responseCode, url);
      }
    } catch (final Exception x) {
      log.warn("problem fetching exchange rates from " + url, x);
    } finally {
      if (reader != null) {
        try {
          reader.close();
        } catch (final IOException x) {
          // swallow
        }
      }

      if (connection != null) connection.disconnect();
    }

    return null;
  }