@Override
public String toString() {
return "MetaInfo[info_hash='"
+ I2PSnarkUtil.toHex(info_hash)
+ "', announce='"
+ announce
+ "', name='"
+ name
+ "', files="
+ files
+ ", #pieces='"
+ piece_hashes.length / 20
+ "', piece_length='"
+ piece_length
+ "', length='"
+ length
+ "']";
}
private byte[] calculateInfoHash() {
Map<String, BEValue> info = createInfoMap();
if (_log.shouldLog(Log.DEBUG)) {
StringBuilder buf = new StringBuilder(128);
buf.append("info: ");
for (Map.Entry<String, BEValue> entry : info.entrySet()) {
String key = entry.getKey();
Object val = entry.getValue();
buf.append(key).append('=');
buf.append(val.toString());
}
_log.debug(buf.toString());
}
byte[] infoBytes = BEncoder.bencode(info);
// _log.debug("info bencoded: [" + Base64.encode(infoBytes, true) + "]");
MessageDigest digest = SHA1.getInstance();
byte hash[] = digest.digest(infoBytes);
if (_log.shouldLog(Log.DEBUG)) _log.debug("info hash: " + I2PSnarkUtil.toHex(hash));
return hash;
}
/** @since 0.8.5 */
public static void main(String[] args) {
if (args.length <= 0) {
System.err.println("Usage: MetaInfo files...");
return;
}
for (int i = 0; i < args.length; i++) {
InputStream in = null;
try {
in = new FileInputStream(args[i]);
MetaInfo meta = new MetaInfo(in);
System.out.println(args[i] + " InfoHash: " + I2PSnarkUtil.toHex(meta.getInfoHash()));
} catch (IOException ioe) {
System.err.println("Error in file " + args[i] + ": " + ioe);
} finally {
try {
if (in != null) in.close();
} catch (IOException ioe) {
}
}
}
}
