8186539: [testlibrary] TestSocketFactory should allow triggers before match/replace
Reviewed-by: smarks
This commit is contained in:
parent
b474897fe2
commit
c8b0184da7
@ -45,20 +45,43 @@ import java.util.Objects;
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import java.util.Set;
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import org.testng.Assert;
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import org.testng.TestNG;
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import org.testng.annotations.Test;
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import org.testng.annotations.DataProvider;
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/*
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* @test
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* @summary TestSocket Factory and tests of the basic trigger, match, and replace functions
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* @run testng TestSocketFactory
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* @bug 8186539
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*/
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/**
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* A RMISocketFactory utility factory to log RMI stream contents and to
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* match and replace output stream contents to simulate failures.
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* trigger, and then match and replace output stream contents to simulate failures.
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* <p>
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* The trigger is a sequence of bytes that must be found before looking
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* for the bytes to match and replace. If the trigger sequence is empty
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* matching is immediately enabled. While waiting for the trigger to be found
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* bytes written to the streams are written through to the output stream.
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* The when triggered and when a trigger is non-empty, matching looks for
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* the sequence of bytes supplied. If the sequence is empty, no matching or
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* replacement is performed.
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* While waiting for a complete match, the partial matched bytes are not
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* written to the output stream. When the match is incomplete, the partial
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* matched bytes are written to the output. When a match is complete the
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* full replacement byte array is written to the output.
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* <p>
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* The trigger, match, and replacement bytes arrays can be changed at any
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* time and immediately reset and restart matching. Changes are propagated
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* to all of the sockets created from the factories immediately.
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*/
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public class TestSocketFactory extends RMISocketFactory
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implements RMIClientSocketFactory, RMIServerSocketFactory, Serializable {
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private static final long serialVersionUID = 1L;
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private volatile transient byte[] triggerBytes;
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private volatile transient byte[] matchBytes;
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private volatile transient byte[] replaceBytes;
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@ -67,6 +90,8 @@ public class TestSocketFactory extends RMISocketFactory
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private transient final List<InterposeServerSocket> serverSockets = new ArrayList<>();
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static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
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public static final boolean DEBUG = false;
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/**
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@ -82,28 +107,51 @@ public class TestSocketFactory extends RMISocketFactory
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}
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/**
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* Create a socket factory that creates InputStreams that log
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* and OutputStreams that log .
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* Create a socket factory that creates InputStreams
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* and OutputStreams that log.
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*/
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public TestSocketFactory() {
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this.matchBytes = new byte[0];
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this.replaceBytes = this.matchBytes;
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System.out.printf("Creating TestSocketFactory()%n");
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this.triggerBytes = EMPTY_BYTE_ARRAY;
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this.matchBytes = EMPTY_BYTE_ARRAY;
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this.replaceBytes = EMPTY_BYTE_ARRAY;
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}
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/**
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* Set the match and replacement bytes, with an empty trigger.
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* The match and replacements are propagated to all existing sockets.
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*
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* @param matchBytes bytes to match
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] matchBytes, byte[] replaceBytes) {
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setMatchReplaceBytes(EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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/**
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* Set the trigger, match, and replacement bytes.
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* The trigger, match, and replacements are propagated to all existing sockets.
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*
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* @param triggerBytes array of bytes to use as a trigger, may be zero length
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* @param matchBytes bytes to match after the trigger has been seen
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] triggerBytes, byte[] matchBytes,
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byte[] replaceBytes) {
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this.triggerBytes = Objects.requireNonNull(triggerBytes, "triggerBytes");
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this.matchBytes = Objects.requireNonNull(matchBytes, "matchBytes");
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this.replaceBytes = Objects.requireNonNull(replaceBytes, "replaceBytes");
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sockets.forEach( s -> s.setMatchReplaceBytes(matchBytes, replaceBytes));
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serverSockets.forEach( s -> s.setMatchReplaceBytes(matchBytes, replaceBytes));
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sockets.forEach( s -> s.setMatchReplaceBytes(triggerBytes, matchBytes,
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replaceBytes));
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serverSockets.forEach( s -> s.setMatchReplaceBytes(triggerBytes, matchBytes,
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replaceBytes));
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}
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@Override
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public Socket createSocket(String host, int port) throws IOException {
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Socket socket = RMISocketFactory.getDefaultSocketFactory()
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.createSocket(host, port);
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InterposeSocket s = new InterposeSocket(socket, matchBytes, replaceBytes);
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InterposeSocket s = new InterposeSocket(socket,
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triggerBytes, matchBytes, replaceBytes);
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sockets.add(s);
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return s;
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}
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@ -122,7 +170,8 @@ public class TestSocketFactory extends RMISocketFactory
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ServerSocket serverSocket = RMISocketFactory.getDefaultSocketFactory()
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.createServerSocket(port);
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InterposeServerSocket ss = new InterposeServerSocket(serverSocket, matchBytes, replaceBytes);
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InterposeServerSocket ss = new InterposeServerSocket(serverSocket,
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triggerBytes, matchBytes, replaceBytes);
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serverSockets.add(ss);
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return ss;
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}
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@ -139,13 +188,15 @@ public class TestSocketFactory extends RMISocketFactory
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/**
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* An InterposeSocket wraps a socket that produces InputStreams
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* and OutputStreams that log the traffic.
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* The OutputStreams it produces match an array of bytes and replace them.
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* The OutputStreams it produces watch for a trigger and then
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* match an array of bytes and replace them.
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* Useful for injecting protocol and content errors.
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*/
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public static class InterposeSocket extends Socket {
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private final Socket socket;
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private InputStream in;
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private MatchReplaceOutputStream out;
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private volatile byte[] triggerBytes;
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private volatile byte[] matchBytes;
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private volatile byte[] replaceBytes;
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private final ByteArrayOutputStream inLogStream;
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@ -153,8 +204,28 @@ public class TestSocketFactory extends RMISocketFactory
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private final String name;
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private static volatile int num = 0; // index for created InterposeSockets
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/**
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* Construct a socket that interposes on a socket to match and replace.
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* The trigger is empty.
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* @param socket the underlying socket
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* @param matchBytes the bytes that must match
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* @param replaceBytes the replacement bytes
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*/
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public InterposeSocket(Socket socket, byte[] matchBytes, byte[] replaceBytes) {
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this(socket, EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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/**
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* Construct a socket that interposes on a socket to match and replace.
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* @param socket the underlying socket
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* @param triggerBytes array of bytes to enable matching
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* @param matchBytes the bytes that must match
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* @param replaceBytes the replacement bytes
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*/
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public InterposeSocket(Socket socket, byte[]
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triggerBytes, byte[] matchBytes, byte[] replaceBytes) {
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this.socket = socket;
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this.triggerBytes = Objects.requireNonNull(triggerBytes, "triggerBytes");
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this.matchBytes = Objects.requireNonNull(matchBytes, "matchBytes");
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this.replaceBytes = Objects.requireNonNull(replaceBytes, "replaceBytes");
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this.inLogStream = new ByteArrayOutputStream();
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@ -164,10 +235,32 @@ public class TestSocketFactory extends RMISocketFactory
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+ socket.getLocalPort() + " < " + socket.getPort();
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}
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/**
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* Set the match and replacement bytes, with an empty trigger.
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* The match and replacements are propagated to all existing sockets.
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*
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* @param matchBytes bytes to match
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] matchBytes, byte[] replaceBytes) {
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this.setMatchReplaceBytes(EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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/**
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* Set the trigger, match, and replacement bytes.
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* The trigger, match, and replacements are propagated to the
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* MatchReplaceOutputStream.
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*
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* @param triggerBytes array of bytes to use as a trigger, may be zero length
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* @param matchBytes bytes to match after the trigger has been seen
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] triggerBytes, byte[] matchBytes,
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byte[] replaceBytes) {
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this.triggerBytes = triggerBytes;
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this.matchBytes = matchBytes;
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this.replaceBytes = replaceBytes;
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out.setMatchReplaceBytes(matchBytes, replaceBytes);
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out.setMatchReplaceBytes(triggerBytes, matchBytes, replaceBytes);
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}
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@Override
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@ -278,7 +371,8 @@ public class TestSocketFactory extends RMISocketFactory
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OutputStream o = socket.getOutputStream();
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String name = Thread.currentThread().getName() + ": "
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+ socket.getLocalPort() + " > " + socket.getPort();
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out = new MatchReplaceOutputStream(o, name, outLogStream, matchBytes, replaceBytes);
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out = new MatchReplaceOutputStream(o, name, outLogStream,
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triggerBytes, matchBytes, replaceBytes);
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DEBUG("Created new MatchReplaceOutputStream: %s%n", name);
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}
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return out;
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@ -308,20 +402,63 @@ public class TestSocketFactory extends RMISocketFactory
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*/
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public static class InterposeServerSocket extends ServerSocket {
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private final ServerSocket socket;
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private volatile byte[] triggerBytes;
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private volatile byte[] matchBytes;
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private volatile byte[] replaceBytes;
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private final List<InterposeSocket> sockets = new ArrayList<>();
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public InterposeServerSocket(ServerSocket socket, byte[] matchBytes, byte[] replaceBytes) throws IOException {
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/**
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* Construct a server socket that interposes on a socket to match and replace.
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* The trigger is empty.
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* @param socket the underlying socket
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* @param matchBytes the bytes that must match
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* @param replaceBytes the replacement bytes
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*/
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public InterposeServerSocket(ServerSocket socket, byte[] matchBytes,
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byte[] replaceBytes) throws IOException {
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this(socket, EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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/**
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* Construct a server socket that interposes on a socket to match and replace.
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* @param socket the underlying socket
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* @param triggerBytes array of bytes to enable matching
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* @param matchBytes the bytes that must match
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* @param replaceBytes the replacement bytes
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*/
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public InterposeServerSocket(ServerSocket socket, byte[] triggerBytes,
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byte[] matchBytes, byte[] replaceBytes) throws IOException {
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this.socket = socket;
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this.triggerBytes = Objects.requireNonNull(triggerBytes, "triggerBytes");
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this.matchBytes = Objects.requireNonNull(matchBytes, "matchBytes");
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this.replaceBytes = Objects.requireNonNull(replaceBytes, "replaceBytes");
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}
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/**
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* Set the match and replacement bytes, with an empty trigger.
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* The match and replacements are propagated to all existing sockets.
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*
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* @param matchBytes bytes to match
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] matchBytes, byte[] replaceBytes) {
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setMatchReplaceBytes(EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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/**
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* Set the trigger, match, and replacement bytes.
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* The trigger, match, and replacements are propagated to all existing sockets.
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*
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* @param triggerBytes array of bytes to use as a trigger, may be zero length
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* @param matchBytes bytes to match after the trigger has been seen
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* @param replaceBytes bytes to replace the matched bytes
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*/
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public void setMatchReplaceBytes(byte[] triggerBytes, byte[] matchBytes,
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byte[] replaceBytes) {
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this.triggerBytes = triggerBytes;
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this.matchBytes = matchBytes;
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this.replaceBytes = replaceBytes;
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sockets.forEach(s -> s.setMatchReplaceBytes(matchBytes, replaceBytes));
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sockets.forEach(s -> s.setMatchReplaceBytes(triggerBytes, matchBytes, replaceBytes));
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}
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/**
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* Return a snapshot of the current list of sockets created from this server socket.
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@ -386,7 +523,8 @@ public class TestSocketFactory extends RMISocketFactory
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}
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@Override
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public <T> ServerSocket setOption(SocketOption<T> name, T value) throws IOException {
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public <T> ServerSocket setOption(SocketOption<T> name, T value)
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throws IOException {
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return socket.setOption(name, value);
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}
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@ -463,22 +601,33 @@ public class TestSocketFactory extends RMISocketFactory
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}
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/**
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* An OutputStream that replaces one string of bytes with another.
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* An OutputStream that looks for a trigger to enable matching and
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* replaces one string of bytes with another.
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* If any range matches, the match starts after the partial match.
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*/
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static class MatchReplaceOutputStream extends OutputStream {
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private final OutputStream out;
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private final String name;
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private volatile byte[] triggerBytes;
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private volatile byte[] matchBytes;
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private volatile byte[] replaceBytes;
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int triggerIndex;
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int matchIndex;
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private int bytesOut = 0;
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private final OutputStream log;
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MatchReplaceOutputStream(OutputStream out, String name, OutputStream log,
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byte[] matchBytes, byte[] replaceBytes) {
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this(out, name, log, EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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MatchReplaceOutputStream(OutputStream out, String name, OutputStream log,
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byte[] triggerBytes, byte[] matchBytes,
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byte[] replaceBytes) {
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this.out = out;
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this.name = name;
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this.triggerBytes = Objects.requireNonNull(triggerBytes, "triggerBytes");
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triggerIndex = 0;
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this.matchBytes = Objects.requireNonNull(matchBytes, "matchBytes");
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this.replaceBytes = Objects.requireNonNull(replaceBytes, "replaceBytes");
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matchIndex = 0;
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@ -486,8 +635,15 @@ public class TestSocketFactory extends RMISocketFactory
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}
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public void setMatchReplaceBytes(byte[] matchBytes, byte[] replaceBytes) {
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this.matchBytes = matchBytes;
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this.replaceBytes = replaceBytes;
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setMatchReplaceBytes(EMPTY_BYTE_ARRAY, matchBytes, replaceBytes);
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}
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public void setMatchReplaceBytes(byte[] triggerBytes, byte[] matchBytes,
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byte[] replaceBytes) {
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this.triggerBytes = Objects.requireNonNull(triggerBytes, "triggerBytes");
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triggerIndex = 0;
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this.matchBytes = Objects.requireNonNull(matchBytes, "matchBytes");
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this.replaceBytes = Objects.requireNonNull(replaceBytes, "replaceBytes");
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matchIndex = 0;
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}
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@ -495,36 +651,52 @@ public class TestSocketFactory extends RMISocketFactory
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public void write(int b) throws IOException {
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b = b & 0xff;
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if (matchBytes.length == 0) {
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// fast path, no match
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out.write(b);
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log.write(b);
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bytesOut++;
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return;
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}
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if (b == (matchBytes[matchIndex] & 0xff)) {
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if (++matchIndex >= matchBytes.length) {
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matchIndex = 0;
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DEBUG( "TestSocketFactory MatchReplace %s replaced %d bytes at offset: %d (x%04x)%n",
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name, replaceBytes.length, bytesOut, bytesOut);
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out.write(replaceBytes);
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log.write(replaceBytes);
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bytesOut += replaceBytes.length;
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}
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// if trigger not satisfied, keep looking
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if (triggerBytes.length != 0 && triggerIndex < triggerBytes.length) {
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out.write(b);
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log.write(b);
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bytesOut++;
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triggerIndex = (b == (triggerBytes[triggerIndex] & 0xff))
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? ++triggerIndex // matching advance
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: 0; // no match, reset
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} else {
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if (matchIndex > 0) {
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// mismatch, write out any that matched already
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DEBUG("Partial match %s matched %d bytes at offset: %d (0x%04x), expected: x%02x, actual: x%02x%n",
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name, matchIndex, bytesOut, bytesOut, matchBytes[matchIndex], b);
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out.write(matchBytes, 0, matchIndex);
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log.write(matchBytes, 0, matchIndex);
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bytesOut += matchIndex;
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matchIndex = 0;
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}
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// trigger not used or has been satisfied
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if (b == (matchBytes[matchIndex] & 0xff)) {
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matchIndex++;
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if (++matchIndex >= matchBytes.length) {
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matchIndex = 0;
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triggerIndex = 0; // match/replace ok, reset trigger
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DEBUG("TestSocketFactory MatchReplace %s replaced %d bytes " +
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"at offset: %d (x%04x)%n",
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name, replaceBytes.length, bytesOut, bytesOut);
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out.write(replaceBytes);
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log.write(replaceBytes);
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bytesOut += replaceBytes.length;
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}
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} else {
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out.write(b);
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log.write(b);
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bytesOut++;
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if (matchIndex > 0) {
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// mismatch, write out any that matched already
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DEBUG("Partial match %s matched %d bytes at offset: %d (0x%04x), " +
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" expected: x%02x, actual: x%02x%n",
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name, matchIndex, bytesOut, bytesOut, matchBytes[matchIndex], b);
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out.write(matchBytes, 0, matchIndex);
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log.write(matchBytes, 0, matchIndex);
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bytesOut += matchIndex;
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matchIndex = 0;
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}
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if (b == (matchBytes[matchIndex] & 0xff)) {
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matchIndex++;
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} else {
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out.write(b);
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log.write(b);
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bytesOut++;
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}
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}
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}
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}
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@ -548,18 +720,44 @@ public class TestSocketFactory extends RMISocketFactory
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}
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}
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private static byte[] orig = new byte[]{
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private static byte[] obj1Data = new byte[] {
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0x7e, 0x7e, 0x7e,
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(byte) 0x80, 0x05,
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0x73, 0x72, 0x00, 0x12, // TC_OBJECT, TC_CLASSDESC, length = 18
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0x6A, 0x61, 0x76, 0x61, 0x2E, 0x72, 0x6D, 0x69, 0x2E, // "java.rmi."
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0x64, 0x67, 0x63, 0x2E, 0x4C, 0x65, 0x61, 0x73, 0x65 // "dgc.Lease"
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0x7f, 0x7f, 0x7f,
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0x73, 0x72, 0x00, 0x10, // TC_OBJECT, TC_CLASSDESC, length = 16
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(byte)'j', (byte)'a', (byte)'v', (byte)'a', (byte)'.',
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(byte)'l', (byte)'a', (byte)'n', (byte)'g', (byte)'.',
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(byte)'n', (byte)'u', (byte)'m', (byte)'b', (byte)'e', (byte)'r'
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};
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private static byte[] repl = new byte[]{
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private static byte[] obj1Result = new byte[] {
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0x7e, 0x7e, 0x7e,
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(byte) 0x80, 0x05,
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0x73, 0x72, 0x00, 0x12, // TC_OBJECT, TC_CLASSDESC, length = 18
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0x6A, 0x61, 0x76, 0x61, 0x2E, (byte) 'l', (byte) 'a', (byte) 'n', (byte) 'g',
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0x2E, (byte) 'R', (byte) 'u', (byte) 'n', (byte) 'n', (byte) 'a', (byte) 'b', (byte) 'l',
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(byte) 'e'
|
||||
0x7f, 0x7f, 0x7f,
|
||||
0x73, 0x72, 0x00, 0x11, // TC_OBJECT, TC_CLASSDESC, length = 17
|
||||
(byte)'j', (byte)'a', (byte)'v', (byte)'a', (byte)'.',
|
||||
(byte)'l', (byte)'a', (byte)'n', (byte)'g', (byte)'.',
|
||||
(byte)'I', (byte)'n', (byte)'t', (byte)'e', (byte)'g', (byte)'e', (byte)'r'
|
||||
};
|
||||
private static byte[] obj1Trigger = new byte[] {
|
||||
(byte) 0x80, 0x05
|
||||
};
|
||||
private static byte[] obj1Trigger2 = new byte[] {
|
||||
0x7D, 0x7D, 0x7D, 0x7D,
|
||||
};
|
||||
private static byte[] obj1Trigger3 = new byte[] {
|
||||
0x7F,
|
||||
};
|
||||
private static byte[] obj1Match = new byte[] {
|
||||
0x73, 0x72, 0x00, 0x10, // TC_OBJECT, TC_CLASSDESC, length = 16
|
||||
(byte)'j', (byte)'a', (byte)'v', (byte)'a', (byte)'.',
|
||||
(byte)'l', (byte)'a', (byte)'n', (byte)'g', (byte)'.',
|
||||
(byte)'n', (byte)'u', (byte)'m', (byte)'b', (byte)'e', (byte)'r'
|
||||
};
|
||||
private static byte[] obj1Repl = new byte[] {
|
||||
0x73, 0x72, 0x00, 0x11, // TC_OBJECT, TC_CLASSDESC, length = 17
|
||||
(byte)'j', (byte)'a', (byte)'v', (byte)'a', (byte)'.',
|
||||
(byte)'l', (byte)'a', (byte)'n', (byte)'g', (byte)'.',
|
||||
(byte)'I', (byte)'n', (byte)'t', (byte)'e', (byte)'g', (byte)'e', (byte)'r'
|
||||
};
|
||||
|
||||
@DataProvider(name = "MatchReplaceData")
|
||||
@ -574,26 +772,42 @@ public class TestSocketFactory extends RMISocketFactory
|
||||
byte[] bytes6 = new byte[]{1, 2, 0x10, 0x20, 0x30};
|
||||
|
||||
return new Object[][]{
|
||||
{new byte[]{}, new byte[]{}, empty, empty},
|
||||
{new byte[]{}, new byte[]{}, byte1, byte1},
|
||||
{new byte[]{3, 4}, new byte[]{4, 3}, byte1, bytes2}, //swap bytes
|
||||
{new byte[]{3, 4}, new byte[]{0x10, 0x20, 0x30, 0x40}, byte1, bytes4}, // insert
|
||||
{new byte[]{1, 2, 0x10, 0x20}, new byte[]{}, bytes4, bytes5}, // delete head
|
||||
{new byte[]{0x40, 5, 6}, new byte[]{}, bytes4, bytes6}, // delete tail
|
||||
{new byte[]{0x40, 0x50}, new byte[]{0x60, 0x50}, bytes4, bytes4}, // partial match, replace nothing
|
||||
{bytes4a, bytes3, bytes4, bytes4}, // long partial match, not replaced
|
||||
{orig, repl, orig, repl},
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{}, new byte[]{},
|
||||
empty, empty},
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{}, new byte[]{},
|
||||
byte1, byte1},
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{3, 4}, new byte[]{4, 3},
|
||||
byte1, bytes2}, //swap bytes
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{3, 4}, new byte[]{0x10, 0x20, 0x30, 0x40},
|
||||
byte1, bytes4}, // insert
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{1, 2, 0x10, 0x20}, new byte[]{},
|
||||
bytes4, bytes5}, // delete head
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{0x40, 5, 6}, new byte[]{},
|
||||
bytes4, bytes6}, // delete tail
|
||||
{EMPTY_BYTE_ARRAY, new byte[]{0x40, 0x50}, new byte[]{0x60, 0x50},
|
||||
bytes4, bytes4}, // partial match, replace nothing
|
||||
{EMPTY_BYTE_ARRAY, bytes4a, bytes3,
|
||||
bytes4, bytes4}, // long partial match, not replaced
|
||||
{EMPTY_BYTE_ARRAY, obj1Match, obj1Repl,
|
||||
obj1Match, obj1Repl},
|
||||
{obj1Trigger, obj1Match, obj1Repl,
|
||||
obj1Data, obj1Result},
|
||||
{obj1Trigger3, obj1Match, obj1Repl,
|
||||
obj1Data, obj1Result}, // different trigger, replace
|
||||
{obj1Trigger2, obj1Match, obj1Repl,
|
||||
obj1Data, obj1Data}, // no trigger, no replace
|
||||
};
|
||||
}
|
||||
|
||||
@Test(enabled = true, dataProvider = "MatchReplaceData")
|
||||
static void test3(byte[] match, byte[] replace,
|
||||
@Test(dataProvider = "MatchReplaceData")
|
||||
public static void test1(byte[] trigger, byte[] match, byte[] replace,
|
||||
byte[] input, byte[] expected) {
|
||||
System.out.printf("match: %s, replace: %s%n", Arrays.toString(match), Arrays.toString(replace));
|
||||
System.out.printf("trigger: %s, match: %s, replace: %s%n", Arrays.toString(trigger),
|
||||
Arrays.toString(match), Arrays.toString(replace));
|
||||
try (ByteArrayOutputStream output = new ByteArrayOutputStream();
|
||||
ByteArrayOutputStream log = new ByteArrayOutputStream();
|
||||
OutputStream out = new MatchReplaceOutputStream(output, "test3",
|
||||
log, match, replace)) {
|
||||
log, trigger, match, replace)) {
|
||||
out.write(input);
|
||||
byte[] actual = output.toByteArray();
|
||||
long index = Arrays.mismatch(actual, expected);
|
||||
@ -608,7 +822,4 @@ public class TestSocketFactory extends RMISocketFactory
|
||||
Assert.fail("unexpected exception", ioe);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
Loading…
x
Reference in New Issue
Block a user