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logging / debugging and formatting (no functional changes)

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This commit is contained in:
jrandom
2004-07-03 19:42:34 +00:00
committed by zzz
parent ff392fee14
commit badfb9088e
2 changed files with 45 additions and 21 deletions
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43
core/java/src/net/i2p/crypto/AESInputStream.java
View File

@ -74,7 +74,8 @@ public class AESInputStream extends FilterInputStream {
if (nval != null) {
return nval.intValue();
} else {
//_log.debug("No byte available. eof? " + _eofFound);
if (_log.shouldLog(Log.DEBUG))
_log.debug("No byte available. eof? " + _eofFound);
if (_eofFound)
return -1;
else {
@ -97,6 +98,7 @@ public class AESInputStream extends FilterInputStream {
dest[i] = (byte) val;
}
}
if (_log.shouldLog(Log.DEBUG))
_log.debug("Read the full buffer of size " + dest.length);
return dest.length;
}
@ -133,6 +135,7 @@ public class AESInputStream extends FilterInputStream {
_readyBuf.clear();
_encryptedBuf.reset();
in.close();
if (_log.shouldLog(Log.DEBUG))
_log.debug("Cumulative bytes read from source/decrypted/stripped: " + _cumulativeRead + "/"
+ _cumulativePrepared + "/" + _cumulativePaddingStripped + "] remaining [" + ready + " ready, "
+ encrypted + " still encrypted]");
@ -182,15 +185,20 @@ public class AESInputStream extends FilterInputStream {
if (false) return; // true to keep the data for decrypt/display on close
if (_encryptedBuf.size() > 0) {
if (_encryptedBuf.size() >= DECRYPT_SIZE) {
//_log.debug("We have " + _encryptedBuf.size() + " available to decrypt... doing so");
if (_log.shouldLog(Log.DEBUG))
_log.debug("We have " + _encryptedBuf.size() + " available to decrypt... doing so");
decrypt();
//if (_encryptedBuf.size() > 0)
// _log.debug("Bytes left in the encrypted buffer after decrypt: " + _encryptedBuf.size());
if ( (_encryptedBuf.size() > 0) && (_log.shouldLog(Log.DEBUG)) )
_log.debug("Bytes left in the encrypted buffer after decrypt: " + _encryptedBuf.size());
} else {
if (_eofFound) {
//_log.debug("EOF and not enough bytes to decrypt [size = " + _encryptedBuf.size() + " totalCumulative: " + _cumulativeRead + "/"+_cumulativePrepared +"]!");
if (_log.shouldLog(Log.DEBUG))
_log.debug("EOF and not enough bytes to decrypt [size = " + _encryptedBuf.size()
+ " totalCumulative: " + _cumulativeRead + "/"+_cumulativePrepared +"]!");
} else {
//_log.debug("Not enough bytes to decrypt [size = " + _encryptedBuf.size() + " totalCumulative: " + _cumulativeRead + "/"+_cumulativePrepared +"]");
if (_log.shouldLog(Log.DEBUG))
_log.debug("Not enough bytes to decrypt [size = " + _encryptedBuf.size()
+ " totalCumulative: " + _cumulativeRead + "/"+_cumulativePrepared +"]");
}
}
}
@ -217,10 +225,12 @@ public class AESInputStream extends FilterInputStream {
byte nencrypted[] = new byte[encrypted.length - trailing];
System.arraycopy(encrypted, 0, nencrypted, 0, nencrypted.length);
encrypted = nencrypted;
if (_log.shouldLog(Log.WARN))
_log.warn("Decrypt got odd segment - " + trailing
+ " bytes pushed back for later decryption - corrupted or slow data stream perhaps?");
} else {
//_log.info(encrypted.length + " bytes makes up " + numBlocks + " blocks to decrypt normally");
if (_log.shouldLog(Log.INFO))
_log.info(encrypted.length + " bytes makes up " + numBlocks + " blocks to decrypt normally");
}
byte block[] = new byte[BLOCK_SIZE];
@ -244,9 +254,7 @@ public class AESInputStream extends FilterInputStream {
int remaining = encrypted.length % BLOCK_SIZE;
if (remaining != 0) {
_encryptedBuf.write(encrypted, encrypted.length - remaining, remaining);
_log
.debug("After pushing "
+ remaining
_log.debug("After pushing " + remaining
+ " bytes back onto the buffer, lets delay 1s our action so we don't fast busy until the net transfers data");
try {
Thread.sleep(1000);
@ -273,13 +281,22 @@ public class AESInputStream extends FilterInputStream {
*/
private int[] stripPadding(byte data[]) throws IOException {
int numPadBytes = (int) data[data.length - 1];
if ((numPadBytes >= data.length) || (numPadBytes <= 0)) throw new IOException("Invalid number of pad bytes");
if ((numPadBytes >= data.length) || (numPadBytes <= 0)) {
if (_log.shouldLog(Log.DEBUG))
_log.debug("stripPadding from block " + DataHelper.toHexString(data) + " (" + data.length + "bytes): "
+ numPadBytes + " is an invalid # of pad bytes");
throw new IOException("Invalid number of pad bytes (" + numPadBytes
+ ") for " + data.length + " bytes");
}
int rv[] = new int[data.length - numPadBytes];
// optional, but a really good idea: verify the padding
if (true) {
for (int i = data.length - numPadBytes; i < data.length; i++) {
if (data[i] != (byte) numPadBytes) { throw new IOException("Incorrect padding on decryption: data[" + i
+ "] = " + data[i] + " not " + numPadBytes); }
if (data[i] != (byte) numPadBytes) {
throw new IOException("Incorrect padding on decryption: data[" + i
+ "] = " + data[i] + " not " + numPadBytes);
}
}
}
for (int i = 0; i < rv.length; i++)

11
core/java/src/net/i2p/crypto/AESOutputStream.java
View File

@ -76,8 +76,9 @@ public class AESOutputStream extends FilterOutputStream {
flush();
out.close();
_inBuf.reset();
_log.debug("Cumulative bytes provided to this stream / written out / padded: " + _cumulativeProvided + "/"
+ _cumulativeWritten + "/" + _cumulativePadding);
if (_log.shouldLog(Log.DEBUG))
_log.debug("Cumulative bytes provided to this stream / written out / padded: "
+ _cumulativeProvided + "/" + _cumulativeWritten + "/" + _cumulativePadding);
}
public void flush() throws IOException {
@ -111,6 +112,10 @@ public class AESOutputStream extends FilterOutputStream {
byte data[] = DataHelper.xor(block, _lastBlock);
byte encrypted[] = _context.AESEngine().encrypt(data, _key, _lastBlock);
_cumulativeWritten += encrypted.length;
if (_log.shouldLog(Log.DEBUG))
_log.debug("Padding block " + i + " of " + numBlocks + " with 1 byte. orig= "
+ DataHelper.toHexString(data) + " (size=" + data.length + ") encrypted= "
+ DataHelper.toHexString(encrypted) + " (size=" + encrypted.length + ")");
out.write(encrypted);
System.arraycopy(encrypted, encrypted.length - BLOCK_SIZE, _lastBlock, 0, BLOCK_SIZE);
_cumulativePadding++;
@ -120,6 +125,8 @@ public class AESOutputStream extends FilterOutputStream {
// we need to do non trivial padding
int remainingBytes = src.length - numBlocks * 15;
int paddingBytes = BLOCK_SIZE - remainingBytes;
if (_log.shouldLog(Log.DEBUG))
_log.debug("Padding " + src.length + " with " + paddingBytes + " bytes in " + numBlocks + " blocks");
System.arraycopy(src, numBlocks * 15, block, 0, remainingBytes);
Arrays.fill(block, remainingBytes, BLOCK_SIZE, (byte) paddingBytes);
byte data[] = DataHelper.xor(block, _lastBlock);