diff options
author | Casey Marshall <csm@gnu.org> | 2006-08-14 22:36:17 +0000 |
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committer | Casey Marshall <csm@gnu.org> | 2006-08-14 22:36:17 +0000 |
commit | 8c09ba9b0bb2b3c6768d7bf7849bf5e096efdc16 (patch) | |
tree | 2385de1ad71e083a0394a98b0865c95187cfeb76 /gnu/javax/net/ssl/provider/ExtensionList.java | |
parent | 32bb0e9c211961fbade190535b8041ece5df772c (diff) | |
download | classpath-8c09ba9b0bb2b3c6768d7bf7849bf5e096efdc16.tar.gz |
2006-08-14 Casey Marshall <csm@gnu.org>
Merge in ssl-nio-branch work. See `ChangeLog-ssl-nio' for a record
of changes made on this branch.
Files modified:
* gnu/classpath/debug/Component.java
* gnu/classpath/debug/SystemLogger.java
* gnu/java/security/action/GetPropertyAction.java
* gnu/java/security/action/GetSecurityPropertyAction.java
* gnu/javax/crypto/RSACipherImpl.java
* gnu/javax/net/ssl/PrivateCredentials.java
* gnu/javax/net/ssl/provider/Alert.java
* gnu/javax/net/ssl/provider/AlertException.java
* gnu/javax/net/ssl/provider/Certificate.java
* gnu/javax/net/ssl/provider/CertificateRequest.java
* gnu/javax/net/ssl/provider/CertificateType.java
* gnu/javax/net/ssl/provider/CertificateVerify.java
* gnu/javax/net/ssl/provider/CipherSuite.java
* gnu/javax/net/ssl/provider/ClientHello.java
* gnu/javax/net/ssl/provider/ClientKeyExchange.java
* gnu/javax/net/ssl/provider/CompressionMethod.java
* gnu/javax/net/ssl/provider/Constructed.java
* gnu/javax/net/ssl/provider/ContentType.java
* gnu/javax/net/ssl/provider/DiffieHellman.java
* gnu/javax/net/ssl/provider/Extension.java
* gnu/javax/net/ssl/provider/Finished.java
* gnu/javax/net/ssl/provider/Handshake.java
* gnu/javax/net/ssl/provider/Jessie.java
* gnu/javax/net/ssl/provider/ProtocolVersion.java
* gnu/javax/net/ssl/provider/Random.java
* gnu/javax/net/ssl/provider/ServerHello.java
* gnu/javax/net/ssl/provider/ServerKeyExchange.java
* gnu/javax/net/ssl/provider/Signature.java
* gnu/javax/net/ssl/provider/Util.java
* gnu/javax/net/ssl/provider/X509KeyManagerFactory.java
* gnu/javax/net/ssl/provider/X509TrustManagerFactory.java
* java/security/MessageDigest.java
* java/security/MessageDigestSpi.java
* java/security/Signature.java
* java/security/SignatureSpi.java
* javax/crypto/Mac.java
* javax/crypto/MacSpi.java
* javax/net/ssl/HandshakeCompletedEvent.java
* javax/net/ssl/HttpsURLConnection.java
* javax/net/ssl/SSLContext.java
* javax/net/ssl/SSLContextSpi.java
* javax/net/ssl/SSLSession.java
Files added:
* gnu/javax/net/ssl/provider/ServerKeyExchangeBuilder.java
* gnu/javax/net/ssl/provider/SSLv3HMacSHAImpl.java
* gnu/javax/net/ssl/provider/SimpleSessionContext.java
* gnu/javax/net/ssl/provider/ServerRSAParams.java
* gnu/javax/net/ssl/provider/SSLContextImpl.java
* gnu/javax/net/ssl/provider/ServerDHParams.java
* gnu/javax/net/ssl/provider/ClientHelloBuilder.java
* gnu/javax/net/ssl/provider/ClientDHE_PSKParameters.java
* gnu/javax/net/ssl/provider/SignatureAlgorithm.java
* gnu/javax/net/ssl/provider/CipherSuiteList.java
* gnu/javax/net/ssl/provider/ServerNameList.java
* gnu/javax/net/ssl/provider/SSLServerSocketImpl.java
* gnu/javax/net/ssl/provider/CompressionMethodList.java
* gnu/javax/net/ssl/provider/ServerRSA_PSKParameters.java
* gnu/javax/net/ssl/provider/ClientKeyExchangeBuilder.java
* gnu/javax/net/ssl/provider/TrustedAuthorities.java
* gnu/javax/net/ssl/provider/CertificateStatusRequest.java
* gnu/javax/net/ssl/provider/ServerHelloDone.java
* gnu/javax/net/ssl/provider/ServerDHE_PSKParameters.java
* gnu/javax/net/ssl/provider/SSLSocketImpl.java
* gnu/javax/net/ssl/provider/ServerHelloBuilder.java
* gnu/javax/net/ssl/provider/Record.java
* gnu/javax/net/ssl/provider/SSLRSASignatureImpl.java
* gnu/javax/net/ssl/provider/EncryptedPreMasterSecret.java
* gnu/javax/net/ssl/provider/PreSharedKeyManagerFactoryImpl.java
* gnu/javax/net/ssl/provider/KeyExchangeAlgorithm.java
* gnu/javax/net/ssl/provider/SSLServerSocketFactoryImpl.java
* gnu/javax/net/ssl/provider/CertificateBuilder.java
* gnu/javax/net/ssl/provider/ClientRSA_PSKParameters.java
* gnu/javax/net/ssl/provider/CertificateStatusType.java
* gnu/javax/net/ssl/provider/ExtensionList.java
* gnu/javax/net/ssl/provider/ClientCertificateTypeList.java
* gnu/javax/net/ssl/provider/ClientPSKParameters.java
* gnu/javax/net/ssl/provider/X500PrincipalList.java
* gnu/javax/net/ssl/provider/ServerHandshake.java
* gnu/javax/net/ssl/provider/ClientDiffieHellmanPublic.java
* gnu/javax/net/ssl/provider/SessionImpl.java
* gnu/javax/net/ssl/provider/SSLSocketFactoryImpl.java
* gnu/javax/net/ssl/provider/ServerPSKParameters.java
* gnu/javax/net/ssl/provider/TruncatedHMAC.java
* gnu/javax/net/ssl/provider/MaxFragmentLength.java
* gnu/javax/net/ssl/provider/HelloRequest.java
* gnu/javax/net/ssl/provider/ServerKeyExchangeParams.java
* gnu/javax/net/ssl/provider/UnresolvedExtensionValue.java
* gnu/javax/net/ssl/provider/CipherAlgorithm.java
* gnu/javax/net/ssl/provider/ClientHandshake.java
* gnu/javax/net/ssl/provider/ExchangeKeys.java
* gnu/javax/net/ssl/provider/CertificateURL.java
* gnu/javax/net/ssl/provider/EmptyExchangeKeys.java
* gnu/javax/net/ssl/provider/CertificateRequestBuilder.java
* gnu/javax/net/ssl/provider/SSLv3HMacMD5Impl.java
* gnu/javax/net/ssl/provider/Builder.java
* gnu/javax/net/ssl/provider/Debug.java
* gnu/javax/net/ssl/provider/SSLEngineImpl.java
* gnu/javax/net/ssl/provider/MacAlgorithm.java
* gnu/javax/net/ssl/provider/DelegatedTask.java
* gnu/javax/net/ssl/provider/InputSecurityParameters.java
* gnu/javax/net/ssl/provider/ClientHelloV2.java
* gnu/javax/net/ssl/provider/OutputSecurityParameters.java
* gnu/javax/net/ssl/provider/AbstractHandshake.java
* javax/net/ssl/SSLEngine.java
* javax/net/ssl/CertPathTrustManagerParameters.java
* javax/net/ssl/KeyStoreBuilderParameters.java
* javax/net/ssl/X509ExtendedKeyManager.java
* javax/net/ssl/SSLEngineResult.java
* gnu/javax/net/ssl/PreSharedKeyManager.java
* gnu/javax/net/ssl/Session.java
* gnu/javax/net/ssl/PreSharedKeyManagerParameters.java
* gnu/javax/net/ssl/SSLCipherSuite.java
* gnu/javax/net/ssl/AbstractSessionContext.java
* gnu/javax/net/ssl/SessionStoreException.java
* gnu/javax/net/ssl/SSLRecordHandler.java
* gnu/javax/net/ssl/SSLProtocolVersion.java
* gnu/javax/crypto/key/GnuPBEKey.java
* gnu/java/security/util/ByteBufferOutputStream.java
* gnu/java/security/Requires.java
* gnu/javax/security/auth/callback/CertificateCallback.java
Files removed:
* gnu/javax/net/ssl/provider/Context.java
* gnu/javax/net/ssl/provider/DigestInputStream.java
* gnu/javax/net/ssl/provider/DigestOutputStream.java
* gnu/javax/net/ssl/provider/Enumerated.java
* gnu/javax/net/ssl/provider/Extensions.java
* gnu/javax/net/ssl/provider/GNUSecurityParameters.java
* gnu/javax/net/ssl/provider/JCESecurityParameters.java
* gnu/javax/net/ssl/provider/JDBCSessionContext.java
* gnu/javax/net/ssl/provider/JessieDHPrivateKey.java
* gnu/javax/net/ssl/provider/JessieDHPublicKey.java
* gnu/javax/net/ssl/provider/JessieRSAPrivateKey.java
* gnu/javax/net/ssl/provider/JessieRSAPublicKey.java
* gnu/javax/net/ssl/provider/KeyPool.java
* gnu/javax/net/ssl/provider/OverflowException.java
* gnu/javax/net/ssl/provider/RecordInput.java
* gnu/javax/net/ssl/provider/RecordInputStream.java
* gnu/javax/net/ssl/provider/RecordOutputStream.java
* gnu/javax/net/ssl/provider/RecordingInputStream.java
* gnu/javax/net/ssl/provider/SSLRSASignature.java
* gnu/javax/net/ssl/provider/SSLServerSocket.java
* gnu/javax/net/ssl/provider/SSLServerSocketFactory.java
* gnu/javax/net/ssl/provider/SSLSocket.java
* gnu/javax/net/ssl/provider/SSLSocketFactory.java
* gnu/javax/net/ssl/provider/SSLSocketInputStream.java
* gnu/javax/net/ssl/provider/SSLSocketOutputStream.java
* gnu/javax/net/ssl/provider/SecurityParameters.java
* gnu/javax/net/ssl/provider/Session.java
* gnu/javax/net/ssl/provider/SessionContext.java
* gnu/javax/net/ssl/provider/SynchronizedRandom.java
* gnu/javax/net/ssl/provider/XMLSessionContext.java
Diffstat (limited to 'gnu/javax/net/ssl/provider/ExtensionList.java')
-rw-r--r-- | gnu/javax/net/ssl/provider/ExtensionList.java | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/gnu/javax/net/ssl/provider/ExtensionList.java b/gnu/javax/net/ssl/provider/ExtensionList.java new file mode 100644 index 000000000..d5aaad621 --- /dev/null +++ b/gnu/javax/net/ssl/provider/ExtensionList.java @@ -0,0 +1,290 @@ +package gnu.javax.net.ssl.provider; + +import java.io.PrintWriter; +import java.io.StringWriter; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.util.ConcurrentModificationException; +import java.util.Iterator; +import java.util.List; +import java.util.ListIterator; +import java.util.NoSuchElementException; + +/** + * A list of extensions, that may appear in either the {@link ClientHello} or + * {@link ServerHello}. The form of the extensions list is: + * + * <tt> Extension extensions_list<1..2^16-1></tt> + * + * @author csm + */ +public class ExtensionList implements Builder, Iterable<Extension> +{ + private final ByteBuffer buffer; + private int modCount; + + public ExtensionList (ByteBuffer buffer) + { + this.buffer = buffer.duplicate().order(ByteOrder.BIG_ENDIAN); + modCount = 0; + } + + public ExtensionList(List<Extension> extensions) + { + int length = 2; + for (Extension extension : extensions) + length += extension.length(); + buffer = ByteBuffer.allocate(length); + buffer.putShort((short) (length - 2)); + for (Extension extension : extensions) + buffer.put(extension.buffer()); + buffer.rewind(); + } + + public ByteBuffer buffer() + { + return (ByteBuffer) buffer.duplicate().limit(length()); + } + + public Extension get (final int index) + { + int length = length (); + int i; + int n = 0; + for (i = 2; i < length && n < index; ) + { + int l = buffer.getShort (i+2) & 0xFFFF; + i += l + 4; + n++; + } + if (n < index) + throw new IndexOutOfBoundsException ("no elemenet at " + index); + int el = buffer.getShort (i+2) & 0xFFFF; + ByteBuffer b = (ByteBuffer) buffer.duplicate().position(i).limit(i+el+4); + return new Extension(b.slice()); + } + + /** + * Returns the number of extensions this list contains. + * + * @return The number of extensions. + */ + public int size () + { + int length = length (); + if (length == 0) + return 0; + int n = 0; + for (int i = 2; i < length; ) + { + int len = buffer.getShort (i+2) & 0xFFFF; + i += len + 4; + n++; + } + return n; + } + + /** + * Returns the length of this extension list, in bytes. + * + * @return The length of this extension list, in bytes. + */ + public int length () + { + return (buffer.getShort (0) & 0xFFFF) + 2; + } + + /** + * Sets the extension at index <i>i</i> to <i>e</i>. Note that setting an + * element at an index <b>may</b> invalidate any other elements that come + * after element at index <i>i</i>. In other words, no attempt is made to + * move existing elements in this list, and since extensions are variable + * length, you can <em>not</em> guarantee that extensions later in the list + * will still be valid. + * + * <p>Thus, elements of this list <b>must</b> be set in order of increasing + * index. + * + * @param index The index to set the extension at. + * @param e The extension. + * @throws java.nio.BufferOverflowException If setting the extension overflows + * the buffer. + * @throws IllegalArgumentException If it isn't possible to find the given index + * in the current list (say, if no element index - 1 is set), or if setting + * the extension will overflow the current list length (given by {@link + * #length()}). + */ + public void set (final int index, Extension e) + { + int length = length(); + int n = 0; + int i; + for (i = 2; i < length && n < index; ) + { + int len = buffer.getShort(i+2) & 0xFFFF; + i += len + 4; + n++; + } + if (n < index) + throw new IllegalArgumentException("nothing set at index " + (index-1) + + " or insufficient space"); + if (i + e.length() + 2 > length) + throw new IllegalArgumentException("adding this element will exceed the " + + "list length"); + buffer.putShort(i, (short) e.type().getValue()); + buffer.putShort(i+2, (short) e.length()); + ((ByteBuffer) buffer.duplicate().position(i+4)).put (e.valueBuffer()); + modCount++; + } + + /** + * Reserve space for an extension at index <i>i</i> in the list. In other + * words, this does the job of {@link #set(int, Extension)}, but does not + * copy the extension value to the underlying buffer. + * + * @param index The index of the extension to reserve space for. + * @param t The type of the extension. + * @param eLength The number of bytes to reserve for this extension. The total + * number of bytes used by this method is this length, plus four. + */ + public void set (final int index, Extension.Type t, final int eLength) + { + int length = length (); + int n = 0; + int i; + for (i = 2; i < length && n < index; ) + { + int len = buffer.getShort (i+2) & 0xFFFF; + i += len + 4; + n++; + } + if (n < index) + throw new IllegalArgumentException ("nothing set at index " + (index-1) + + " or insufficient space"); + if (i + eLength + 2 > length) + throw new IllegalArgumentException ("adding this element will exceed the " + + "list length"); + buffer.putShort(i, (short) t.getValue()); + buffer.putShort(i+2, (short) eLength); + modCount++; + } + + /** + * Set the total length of this list, in bytes. + * + * @param newLength The new list length. + */ + public void setLength (final int newLength) + { + if (newLength < 0 || newLength > 65535) + throw new IllegalArgumentException ("invalid length"); + buffer.putShort (0, (short) newLength); + modCount++; + } + + public Iterator<Extension> iterator() + { + return new ExtensionsIterator(); + } + + public String toString() + { + return toString (null); + } + + public String toString(final String prefix) + { + StringWriter str = new StringWriter(); + PrintWriter out = new PrintWriter(str); + if (prefix != null) out.print(prefix); + out.println("ExtensionList {"); + if (prefix != null) out.print(prefix); + out.print(" length = "); + out.print(length()); + out.println(";"); + String subprefix = " "; + if (prefix != null) + subprefix = prefix + subprefix; + for (Extension e : this) + out.println(e.toString(subprefix)); + if (prefix != null) out.print(prefix); + out.print("};"); + return str.toString(); + } + + /** + * List iterator interface to an extensions list. + * + * @author csm@gnu.org + */ + public final class ExtensionsIterator implements ListIterator<Extension> + { + private final int modCount; + private int index; + private final int size; + + public ExtensionsIterator () + { + this.modCount = ExtensionList.this.modCount; + index = 0; + size = size (); + } + + public boolean hasNext() + { + return index < size; + } + + public boolean hasPrevious() + { + return index > 0; + } + + public Extension next() throws NoSuchElementException + { + if (modCount != ExtensionList.this.modCount) + throw new ConcurrentModificationException (); + if (!hasNext ()) + throw new NoSuchElementException (); + return get (index++); + } + + public Extension previous() throws NoSuchElementException + { + if (modCount != ExtensionList.this.modCount) + throw new ConcurrentModificationException (); + if (!hasPrevious ()) + throw new NoSuchElementException (); + return get (--index); + } + + public int nextIndex() + { + if (hasNext ()) + return index + 1; + return index; + } + + public int previousIndex() + { + if (hasPrevious ()) + return index - 1; + return -1; + } + + public void add(Extension e) + { + throw new UnsupportedOperationException ("cannot add items to this iterator"); + } + + public void remove() + { + throw new UnsupportedOperationException ("cannot remove items from this iterator"); + } + + public void set(Extension e) + { + ExtensionList.this.set (index, e); + } + } +} |