@Override
public String toString() {
return getClass().getSimpleName()
+ '['
+ currencyCode
+ ':'
+ GenericUtils.formatDebugValue(rate)
+ ']';
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append(getClass().getSimpleName());
builder.append('[');
builder.append(hasAmount() ? GenericUtils.formatDebugValue(amount) : "null");
builder.append(',');
if (script.isSentToAddress() || script.isSentToP2SH())
builder.append(script.getToAddress(Constants.NETWORK_PARAMETERS));
else if (script.isSentToRawPubKey())
for (final byte b : script.getPubKey()) builder.append(String.format("%02x", b));
else if (script.isSentToMultiSig()) builder.append("multisig");
else builder.append("unknown");
builder.append(']');
return builder.toString();
}
public boolean isHttpPaymentRequestUrl() {
return paymentRequestUrl != null
&& (GenericUtils.startsWithIgnoreCase(paymentRequestUrl, "http:")
|| GenericUtils.startsWithIgnoreCase(paymentRequestUrl, "https:"));
}
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;
}
@Override
public Cursor query(
final Uri uri,
final String[] projection,
final String selection,
final String[] selectionArgs,
final String sortOrder) {
if (Constants.BUG_OPENSSL_HEARTBLEED) return null;
final long now = System.currentTimeMillis();
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
int provider = Integer.parseInt(sp.getString(Configuration.PREFS_KEY_EXCHANGE_PROVIDER, "0"));
boolean forceRefresh = sp.getBoolean(Configuration.PREFS_KEY_EXCHANGE_FORCE_REFRESH, false);
if (forceRefresh)
sp.edit().putBoolean(Configuration.PREFS_KEY_EXCHANGE_FORCE_REFRESH, false).commit();
if (lastUpdated == 0 || now - lastUpdated > UPDATE_FREQ_MS) {
float newDogeBtcConversion = -1;
if ((dogeBtcConversion == -1 && newDogeBtcConversion == -1) || forceRefresh)
newDogeBtcConversion = requestDogeBtcConversion(provider);
if (newDogeBtcConversion != -1) dogeBtcConversion = newDogeBtcConversion;
if (dogeBtcConversion == -1) return null;
Map<String, ExchangeRate> newExchangeRates = null;
if (newExchangeRates == null)
newExchangeRates =
requestExchangeRates(
BITCOINAVERAGE_URL,
dogeBtcConversion,
userAgent,
BITCOINAVERAGE_SOURCE,
BITCOINAVERAGE_FIELDS);
if (newExchangeRates == null)
newExchangeRates =
requestExchangeRates(
BLOCKCHAININFO_URL,
dogeBtcConversion,
userAgent,
BLOCKCHAININFO_SOURCE,
BLOCKCHAININFO_FIELDS);
if (newExchangeRates != null) {
String providerUrl;
switch (provider) {
case 0:
providerUrl = "http://www.cryptsy.com";
break;
case 1:
providerUrl = "http://www.vircurex.com";
break;
default:
providerUrl = "";
break;
}
float mBTCRate = dogeBtcConversion * 1000;
String strmBTCRate = String.format(Locale.US, "%.5f", mBTCRate).replace(',', '.');
newExchangeRates.put(
"mBTC",
new ExchangeRate(
"mBTC",
new BigDecimal(GenericUtils.toNanoCoins(strmBTCRate, 0)).toBigInteger(),
providerUrl));
newExchangeRates.put(
"DOGE", new ExchangeRate("DOGE", BigInteger.valueOf(100000000), "priceofdoge.com"));
exchangeRates = newExchangeRates;
lastUpdated = now;
final ExchangeRate exchangeRateToCache = bestExchangeRate(config.getExchangeCurrencyCode());
if (exchangeRateToCache != null) config.setCachedExchangeRate(exchangeRateToCache);
}
}
if (exchangeRates == null || dogeBtcConversion == -1) return null;
final MatrixCursor cursor =
new MatrixCursor(new String[] {BaseColumns._ID, KEY_CURRENCY_CODE, KEY_RATE, KEY_SOURCE});
if (selection == null) {
for (final Map.Entry<String, ExchangeRate> entry : exchangeRates.entrySet()) {
final ExchangeRate rate = entry.getValue();
cursor
.newRow()
.add(rate.currencyCode.hashCode())
.add(rate.currencyCode)
.add(rate.rate.longValue())
.add(rate.source);
}
} else if (selection.equals(KEY_CURRENCY_CODE)) {
final ExchangeRate rate = bestExchangeRate(selectionArgs[0]);
if (rate != null)
cursor
.newRow()
.add(rate.currencyCode.hashCode())
.add(rate.currencyCode)
.add(rate.rate.longValue())
.add(rate.source);
}
return cursor;
}
