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I2NP: Remove unused InputStream parsing methods

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This commit is contained in:
zzz
2018-08-04 14:35:00 +00:00
parent 2cc362ca7b
commit 30f25de49b
7 changed files with 9 additions and 457 deletions
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58
router/java/src/net/i2p/data/i2np/DeliveryInstructions.java
View File

@ -163,58 +163,11 @@ public class DeliveryInstructions extends DataStructureImpl {
/**
* @deprecated unused
* @throws UnsupportedOperationException always
*/
@Deprecated
public void readBytes(InputStream in) throws DataFormatException, IOException {
long flags = DataHelper.readLong(in, 1);
//if (_log.shouldLog(Log.DEBUG))
// _log.debug("Read flags: " + flags + " mode: " + flagMode(flags));
/****
if (flagEncrypted(flags)) {
SessionKey k = new SessionKey();
k.readBytes(in);
setEncryptionKey(k);
setEncrypted(true);
} else {
setEncrypted(false);
}
****/
setDeliveryMode(flagMode(flags));
switch (flagMode(flags)) {
case FLAG_MODE_LOCAL:
break;
case FLAG_MODE_DESTINATION:
//Hash destHash = new Hash();
//destHash.readBytes(in);
Hash destHash = Hash.create(in);
setDestination(destHash);
break;
case FLAG_MODE_ROUTER:
//Hash routerHash = new Hash();
//routerHash.readBytes(in);
Hash routerHash = Hash.create(in);
setRouter(routerHash);
break;
case FLAG_MODE_TUNNEL:
//Hash tunnelRouterHash = new Hash();
//tunnelRouterHash.readBytes(in);
Hash tunnelRouterHash = Hash.create(in);
setRouter(tunnelRouterHash);
TunnelId id = new TunnelId();
id.readBytes(in);
setTunnelId(id);
break;
}
if (flagDelay(flags)) {
long delay = DataHelper.readLong(in, 4);
setDelayRequested(true);
setDelaySeconds(delay);
} else {
setDelayRequested(false);
}
public void readBytes(InputStream in) {
throw new UnsupportedOperationException();
}
public int readBytes(byte data[], int offset) throws DataFormatException {
@ -576,11 +529,6 @@ public class DeliveryInstructions extends DataStructureImpl {
throw new RuntimeException("immutable");
}
@Override
public void readBytes(InputStream in) throws DataFormatException, IOException {
throw new RuntimeException("immutable");
}
@Override
public int readBytes(byte data[], int offset) throws DataFormatException {
throw new RuntimeException("immutable");

21
router/java/src/net/i2p/data/i2np/FastI2NPMessageImpl.java
View File

@ -9,7 +9,6 @@ package net.i2p.data.i2np;
*/
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import net.i2p.I2PAppContext;
@ -49,26 +48,6 @@ public abstract class FastI2NPMessageImpl extends I2NPMessageImpl {
super(context);
}
/**
* @deprecated unused
* @throws UnsupportedOperationException
*/
@Deprecated
@Override
public void readBytes(InputStream in) throws DataFormatException, IOException {
throw new UnsupportedOperationException();
}
/**
* @deprecated unused
* @throws UnsupportedOperationException
*/
@Deprecated
@Override
public int readBytes(InputStream in, int type, byte buffer[]) throws I2NPMessageException, IOException {
throw new UnsupportedOperationException();
}
/**
* Ignore, but save, the checksum, to be used later if necessary.
*

22
router/java/src/net/i2p/data/i2np/GarlicClove.java
View File

@ -61,28 +61,8 @@ public class GarlicClove extends DataStructureImpl {
* @throws UnsupportedOperationException always
*/
@Deprecated
public void readBytes(InputStream in) throws DataFormatException, IOException {
public void readBytes(InputStream in) {
throw new UnsupportedOperationException();
/****
_instructions = new DeliveryInstructions();
_instructions.readBytes(in);
if (_log.shouldLog(Log.DEBUG))
_log.debug("Read instructions: " + _instructions);
try {
_msg = _handler.readMessage(in);
} catch (I2NPMessageException ime) {
throw new DataFormatException("Unable to read the message from a garlic clove", ime);
}
_cloveId = DataHelper.readLong(in, 4);
_expiration = DataHelper.readDate(in);
if (_log.shouldLog(Log.DEBUG))
_log.debug("CloveID read: " + _cloveId + " expiration read: " + _expiration);
//_certificate = new Certificate();
//_certificate.readBytes(in);
_certificate = Certificate.create(in);
if (_log.shouldLog(Log.DEBUG))
_log.debug("Read cert: " + _certificate);
****/
}
/**

21
router/java/src/net/i2p/data/i2np/I2NPMessage.java
View File

@ -9,7 +9,6 @@ package net.i2p.data.i2np;
*/
import java.io.IOException;
import java.io.InputStream;
import net.i2p.data.DataStructure;
@ -31,26 +30,6 @@ public interface I2NPMessage extends DataStructure {
*/
public static final int MAX_SIZE = 64*1024;
/**
* Read the body into the data structures, after the initial type byte, using
* the current class's format as defined by the I2NP specification
*
* Unused - All transports provide encapsulation and so we have byte arrays available.
*
* @param in stream to read from
* starting at type if type is < 0 (16 byte header)
* starting at ID if type is >= 0 (15 byte header)
* @param type I2NP message type. If less than zero, read the type from data
* @param buffer scratch buffer to be used when reading and parsing
* @return size of the message read (including headers)
* @throws I2NPMessageException if the stream doesn't contain a valid message
* that this class can read.
* @throws IOException if there is a problem reading from the stream
* @deprecated unused
*/
@Deprecated
public int readBytes(InputStream in, int type, byte buffer[]) throws I2NPMessageException, IOException;
/**
* Read the body into the data structures, after the initial type byte, using
* the current class's format as defined by the I2NP specification

45
router/java/src/net/i2p/data/i2np/I2NPMessageHandler.java
View File

@ -9,7 +9,6 @@ package net.i2p.data.i2np;
*/
import java.io.IOException;
import java.io.InputStream;
import net.i2p.I2PAppContext;
import net.i2p.data.DataFormatException;
@ -35,40 +34,6 @@ public class I2NPMessageHandler {
_lastSize = -1;
}
/**
* Read an I2NPMessage from the stream and return the fully populated object.
*
* This is only called by I2NPMessageReader which is unused.
* All transports provide encapsulation and so we have byte arrays available.
*
* @deprecated use the byte array method to avoid an extra copy if you have it
*
* @throws I2NPMessageException if there is a problem handling the particular
* message - if it is an unknown type or has improper formatting, etc.
*/
@Deprecated
public I2NPMessage readMessage(InputStream in) throws IOException, I2NPMessageException {
if (_messageBuffer == null) _messageBuffer = new byte[38*1024]; // more than necessary
try {
int type = (int)DataHelper.readLong(in, 1);
_lastReadBegin = System.currentTimeMillis();
I2NPMessage msg = I2NPMessageImpl.createMessage(_context, type);
try {
_lastSize = msg.readBytes(in, type, _messageBuffer);
} catch (I2NPMessageException ime) {
throw ime;
} catch (RuntimeException e) {
if (_log.shouldLog(Log.WARN))
_log.warn("Error reading the stream", e);
throw new I2NPMessageException("Unknown error reading the " + msg.getClass().getSimpleName(), e);
}
_lastReadEnd = System.currentTimeMillis();
return msg;
} catch (DataFormatException dfe) {
throw new I2NPMessageException("Error reading the message", dfe);
}
}
/** clear the last message read from a byte array with an offset */
public I2NPMessage lastRead() {
I2NPMessage rv = _lastRead;
@ -129,14 +94,4 @@ public class I2NPMessageHandler {
public long getLastReadTime() { return _lastReadEnd - _lastReadBegin; }
public int getLastSize() { return _lastSize; }
/****
public static void main(String args[]) {
try {
I2NPMessage msg = new I2NPMessageHandler(I2PAppContext.getGlobalContext()).readMessage(new FileInputStream(args[0]));
System.out.println(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
****/
}

84
router/java/src/net/i2p/data/i2np/I2NPMessageImpl.java
View File

@ -72,91 +72,15 @@ public abstract class I2NPMessageImpl extends DataStructureImpl implements I2NPM
}
/**
* Read the whole message but only if it's exactly 1024 bytes.
* Read the whole message.
* Unused - All transports provide encapsulation and so we have byte arrays available.
*
* @deprecated unused
* @throws UnsupportedOperationException always
*/
@Deprecated
public void readBytes(InputStream in) throws DataFormatException, IOException {
try {
readBytes(in, -1, new byte[1024]);
} catch (I2NPMessageException ime) {
throw new DataFormatException("Bad bytes", ime);
}
}
/**
* Read the header, then read the rest into buffer, then call
* readMessage in the implemented message type
*
* This does a copy from the stream to the buffer, so if you already
* have a byte array, use the other readBytes() instead.
*
*<pre>
* Specifically:
* 1 byte type (if caller didn't read already, as specified by the type param
* 4 byte ID
* 8 byte expiration
* 2 byte size
* 1 byte checksum
* size bytes of payload (read by readMessage() in implementation)
*</pre>
*
* Unused - All transports provide encapsulation and so we have byte arrays available.
*
* @param type the message type or -1 if we should read it here
* @param buffer temp buffer to use
* @return total length of the message
* @deprecated unused
*/
@Deprecated
public int readBytes(InputStream in, int type, byte buffer[]) throws I2NPMessageException, IOException {
try {
if (type < 0)
type = (int)DataHelper.readLong(in, 1);
_uniqueId = DataHelper.readLong(in, 4);
_expiration = DataHelper.readLong(in, DataHelper.DATE_LENGTH);
int size = (int)DataHelper.readLong(in, 2);
byte checksum[] = new byte[CHECKSUM_LENGTH];
int read = DataHelper.read(in, checksum);
if (read != CHECKSUM_LENGTH)
throw new I2NPMessageException("checksum is too small [" + read + "]");
//Hash h = new Hash();
//h.readBytes(in);
if (buffer.length < size) {
if (size > MAX_SIZE) throw new I2NPMessageException("size=" + size);
buffer = new byte[size];
}
int cur = 0;
while (cur < size) {
int numRead = in.read(buffer, cur, size- cur);
if (numRead == -1) {
throw new I2NPMessageException("Payload is too short [" + numRead + ", wanted " + size + "]");
}
cur += numRead;
}
byte[] calc = SimpleByteCache.acquire(Hash.HASH_LENGTH);
_context.sha().calculateHash(buffer, 0, size, calc, 0);
//boolean eq = calc.equals(h);
boolean eq = DataHelper.eq(checksum, 0, calc, 0, CHECKSUM_LENGTH);
SimpleByteCache.release(calc);
if (!eq)
throw new I2NPMessageException("Bad checksum on " + size + " byte I2NP " + getClass().getSimpleName());
//long start = _context.clock().now();
if (_log.shouldLog(Log.DEBUG))
_log.debug("Reading bytes: type = " + type + " / uniqueId : " + _uniqueId + " / expiration : " + _expiration);
readMessage(buffer, 0, size, type);
//long time = _context.clock().now() - start;
//if (time > 50)
// _context.statManager().addRateData("i2np.readTime", time, time);
return CHECKSUM_LENGTH + 1 + 2 + 4 + DataHelper.DATE_LENGTH + size;
} catch (DataFormatException dfe) {
throw new I2NPMessageException("Error reading the message header", dfe);
}
public void readBytes(InputStream in) {
throw new UnsupportedOperationException();
}
/**

213
router/java/src/net/i2p/data/i2np/I2NPMessageReader.java
View File

@ -1,213 +0,0 @@
package net.i2p.data.i2np;
/*
* free (adj.): unencumbered; not under the control of others
* Written by jrandom in 2003 and released into the public domain
* with no warranty of any kind, either expressed or implied.
* It probably won't make your computer catch on fire, or eat
* your children, but it might. Use at your own risk.
*
*/
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import net.i2p.router.RouterContext;
import net.i2p.util.I2PThread;
import net.i2p.util.Log;
/**
* The I2NPMessageReader reads an InputStream (using
* {@link I2NPMessageHandler I2NPMessageHandler}) and passes out events to a registered
* listener, where events are either messages being received, exceptions being
* thrown, or the connection being closed. Routers should use this rather
* than read from the stream themselves.
*
* Deprecated - unused.
* This was used by the old TCP transport.
* Both the NTCP and SSU transports provide encapsulation
* of I2NP messages, so they use I2NPMessageHandlers directly.
* If we ever add a transport that does not provide encapsulation,
* this will be useful again.
*
* @deprecated unused
*
* @author jrandom
*/
@Deprecated
public class I2NPMessageReader {
private Log _log;
private RouterContext _context;
private InputStream _stream;
private I2NPMessageEventListener _listener;
private I2NPMessageReaderRunner _reader;
private Thread _readerThread;
public I2NPMessageReader(RouterContext context, InputStream stream, I2NPMessageEventListener lsnr) {
this(context, stream, lsnr, "I2NP Reader");
}
public I2NPMessageReader(RouterContext context, InputStream stream, I2NPMessageEventListener lsnr, String name) {
_context = context;
_log = context.logManager().getLog(I2NPMessageReader.class);
_stream = stream;
setListener(lsnr);
_reader = new I2NPMessageReaderRunner();
_readerThread = new I2PThread(_reader);
_readerThread.setName(name);
_readerThread.setDaemon(true);
}
public void setListener(I2NPMessageEventListener lsnr) { _listener = lsnr; }
public I2NPMessageEventListener getListener() { return _listener; }
/**
* Instruct the reader to begin reading messages off the stream
*
*/
public void startReading() { _readerThread.start(); }
/**
* Have the already started reader pause its reading indefinitely
* @deprecated unused
*/
@Deprecated
public void pauseReading() { _reader.pauseRunner(); }
/**
* Resume reading after a pause
* @deprecated unused
*/
@Deprecated
public void resumeReading() { _reader.resumeRunner(); }
/**
* Cancel reading.
*
*/
public void stopReading() { _reader.cancelRunner(); }
/**
* Defines the different events the reader produces while reading the stream
*
*/
public static interface I2NPMessageEventListener {
/**
* Notify the listener that a message has been received from the given
* reader
*
*/
public void messageReceived(I2NPMessageReader reader, I2NPMessage message, long msToRead, int bytesRead);
/**
* Notify the listener that an exception was thrown while reading from the given
* reader
*
*/
public void readError(I2NPMessageReader reader, Exception error);
/**
* Notify the listener that the stream the given reader was running off
* closed
*
*/
public void disconnected(I2NPMessageReader reader);
}
private class I2NPMessageReaderRunner implements Runnable {
private boolean _doRun;
private boolean _stayAlive;
private I2NPMessageHandler _handler;
public I2NPMessageReaderRunner() {
_doRun = true;
_stayAlive = true;
_handler = new I2NPMessageHandler(_context);
}
/** deprecated unused */
public void pauseRunner() { _doRun = false; }
/** deprecated unused */
public void resumeRunner() { _doRun = true; }
public void cancelRunner() {
_doRun = false;
_stayAlive = false;
}
public void run() {
while (_stayAlive) {
while (_doRun) {
while (!_context.throttle().acceptNetworkMessage()) {
try { Thread.sleep(500 + _context.random().nextInt(512)); } catch (InterruptedException ie) {}
}
// do read
try {
I2NPMessage msg = _handler.readMessage(_stream);
if (msg != null) {
long msToRead = _handler.getLastReadTime();
int bytesRead = _handler.getLastSize();
//msToRead += injectLag(bytesRead);
_listener.messageReceived(I2NPMessageReader.this, msg, msToRead, bytesRead);
}
} catch (I2NPMessageException ime) {
if (_log.shouldLog(Log.WARN))
_log.warn("Error handling message", ime);
_listener.readError(I2NPMessageReader.this, ime);
_listener.disconnected(I2NPMessageReader.this);
cancelRunner();
} catch (InterruptedIOException iioe) {
// not all I2NPMessageReaders support this, but some run off sockets which throw
// SocketTimeoutExceptions or InterruptedIOExceptions
if (_log.shouldLog(Log.INFO))
_log.info("Disconnecting due to inactivity", iioe);
_listener.disconnected(I2NPMessageReader.this);
cancelRunner();
} catch (IOException ioe) {
if (_log.shouldLog(Log.WARN))
_log.warn("IO Error handling message", ioe);
_listener.disconnected(I2NPMessageReader.this);
cancelRunner();
} catch (RuntimeException e) {
_log.log(Log.CRIT, "error reading msg!", e);
_listener.readError(I2NPMessageReader.this, e);
_listener.disconnected(I2NPMessageReader.this);
cancelRunner();
}
}
// ??? unused
if (_stayAlive && !_doRun) {
// pause .5 secs when we're paused
try { Thread.sleep(500); } catch (InterruptedException ie) {}
}
}
// boom bye bye bad bwoy
}
/****
private final long injectLag(int size) {
if (true) {
return 0;
} else {
boolean shouldLag = _context.random().nextInt(1000) > size;
if (!shouldLag) return 0;
long readLag = getReadLag();
if (readLag > 0) {
long lag = _context.random().nextLong(readLag);
if (lag > 0) {
try { Thread.sleep(lag); } catch (InterruptedException ie) {}
return lag;
} else {
return 0;
}
} else {
return 0;
}
}
}
private final long getReadLag() {
return _context.getProperty("router.injectLagMs", 0L);
}
****/
}
}