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support payjoin uris

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This commit is contained in:
Craig Raw 2020-11-03 13:51:36 +02:00
parent 67c76c3b28
commit 8541348b5b
1 changed files with 34 additions and 0 deletions
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34
src/main/java/com/sparrowwallet/drongo/uri/BitcoinURI.java
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@ -2,6 +2,8 @@ package com.sparrowwallet.drongo.uri;
import com.sparrowwallet.drongo.address.Address; import com.sparrowwallet.drongo.address.Address;
import com.sparrowwallet.drongo.address.InvalidAddressException; import com.sparrowwallet.drongo.address.InvalidAddressException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.math.BigDecimal; import java.math.BigDecimal;
import java.net.URI; import java.net.URI;
@ -54,11 +56,15 @@ import static com.sparrowwallet.drongo.protocol.Transaction.*;
* @see <a href="https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki">BIP 0021</a> * @see <a href="https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki">BIP 0021</a>
*/ */
public class BitcoinURI { public class BitcoinURI {
private static final Logger log = LoggerFactory.getLogger(BitcoinURI.class);
public static final String FIELD_MESSAGE = "message"; public static final String FIELD_MESSAGE = "message";
public static final String FIELD_LABEL = "label"; public static final String FIELD_LABEL = "label";
public static final String FIELD_AMOUNT = "amount"; public static final String FIELD_AMOUNT = "amount";
public static final String FIELD_ADDRESS = "address"; public static final String FIELD_ADDRESS = "address";
public static final String FIELD_PAYMENT_REQUEST_URL = "r"; public static final String FIELD_PAYMENT_REQUEST_URL = "r";
public static final String FIELD_PAYJOIN_URL = "pj";
public static final String FIELD_PAYJOIN_OUTPUT_SUBSTITUTION = "pjos";
public static final String BITCOIN_SCHEME = "bitcoin"; public static final String BITCOIN_SCHEME = "bitcoin";
private static final String ENCODED_SPACE_CHARACTER = "%20"; private static final String ENCODED_SPACE_CHARACTER = "%20";
@ -267,6 +273,34 @@ public class BitcoinURI {
return urls; return urls;
} }
/**
* @return The URL where a payjoin endpoint (as specified in BIP 78) may be specified.
*/
public final URI getPayjoinUrl() {
String payjoinUrl = (String)parameterMap.get(FIELD_PAYJOIN_URL);
if(payjoinUrl != null) {
try {
URI uri = new URI(payjoinUrl);
if(uri.getScheme().equals("https") || uri.getHost().endsWith(".onion")) {
return uri;
} else {
log.error("Insecure payjoin URL provided, must be https or .onion: " + payjoinUrl);
}
} catch(URISyntaxException e) {
log.error("Invalid payjoin URL provided", e);
}
}
return null;
}
/**
* @return Whether to allow output substitution in the payjoin proposal transaction.
*/
public final boolean isPayjoinOutputSubstitutionAllowed() {
return !"0".equals(parameterMap.get(FIELD_PAYJOIN_OUTPUT_SUBSTITUTION));
}
/** /**
* @param name The name of the parameter * @param name The name of the parameter
* @return The parameter value, or null if not present * @return The parameter value, or null if not present