Delete the old WebSocket implementation.

Source/modules/websockets/WebSocketExtensionDispatcher.cpp

-/*
- * Copyright (C) 2012 Google Inc.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include "modules/websockets/WebSocketExtensionDispatcher.h"
-
-#include "modules/websockets/WebSocketExtensionParser.h"
-
-#include "wtf/ASCIICType.h"
-#include "wtf/HashMap.h"
-#include "wtf/text/CString.h"
-#include "wtf/text/StringHash.h"
-
-namespace blink {
-
-void WebSocketExtensionDispatcher::reset()
-{
-    m_processors.clear();
-}
-
-void WebSocketExtensionDispatcher::addProcessor(PassOwnPtr<WebSocketExtensionProcessor> processor)
-{
-    for (size_t i = 0; i < m_processors.size(); ++i) {
-        if (m_processors[i]->extensionToken() == processor->extensionToken())
-            return;
-    }
-    ASSERT(processor->handshakeString().length());
-    ASSERT(!processor->handshakeString().contains('\n'));
-    ASSERT(!processor->handshakeString().contains(static_cast<UChar>('\0')));
-    m_processors.append(processor);
-}
-
-const String WebSocketExtensionDispatcher::createHeaderValue() const
-{
-    size_t numProcessors = m_processors.size();
-    if (!numProcessors)
-        return String();
-
-    StringBuilder builder;
-    builder.append(m_processors[0]->handshakeString());
-    for (size_t i = 1; i < numProcessors; ++i) {
-        builder.appendLiteral(", ");
-        builder.append(m_processors[i]->handshakeString());
-    }
-    return builder.toString();
-}
-
-void WebSocketExtensionDispatcher::appendAcceptedExtension(const String& extensionToken, HashMap<String, String>& extensionParameters)
-{
-    if (!m_acceptedExtensionsBuilder.isEmpty())
-        m_acceptedExtensionsBuilder.appendLiteral(", ");
-    m_acceptedExtensionsBuilder.append(extensionToken);
-    // FIXME: Should use ListHashSet to keep the order of the parameters.
-    for (HashMap<String, String>::const_iterator iterator = extensionParameters.begin(); iterator != extensionParameters.end(); ++iterator) {
-        m_acceptedExtensionsBuilder.appendLiteral("; ");
-        m_acceptedExtensionsBuilder.append(iterator->key);
-        if (!iterator->value.isNull()) {
-            m_acceptedExtensionsBuilder.append('=');
-            m_acceptedExtensionsBuilder.append(iterator->value);
-        }
-    }
-}
-
-void WebSocketExtensionDispatcher::fail(const String& reason)
-{
-    m_failureReason = reason;
-    m_acceptedExtensionsBuilder.clear();
-}
-
-bool WebSocketExtensionDispatcher::processHeaderValue(const String& headerValue)
-{
-    if (!headerValue.length())
-        return true;
-
-    // If we don't send Sec-WebSocket-Extensions header, the server should not return the header.
-    if (!m_processors.size()) {
-        fail("Response must not include 'Sec-WebSocket-Extensions' header if not present in request: " + headerValue);
-        return false;
-    }
-
-    const CString headerValueData = headerValue.utf8();
-    WebSocketExtensionParser parser(headerValueData.data(), headerValueData.data() + headerValueData.length());
-    while (!parser.finished()) {
-        String extensionToken;
-        HashMap<String, String> extensionParameters;
-        if (!parser.parseExtension(extensionToken, extensionParameters)) {
-            fail("Invalid 'Sec-WebSocket-Extensions' header");
-            return false;
-        }
-
-        size_t index;
-        for (index = 0; index < m_processors.size(); ++index) {
-            WebSocketExtensionProcessor* processor = m_processors[index].get();
-            if (extensionToken == processor->extensionToken()) {
-                if (processor->processResponse(extensionParameters)) {
-                    appendAcceptedExtension(extensionToken, extensionParameters);
-                    break;
-                }
-                fail("Error in " + extensionToken + ": " + processor->failureReason());
-                return false;
-            }
-        }
-        // There is no extension which can process the response.
-        if (index == m_processors.size()) {
-            fail("Found an unsupported extension '" + extensionToken + "' in 'Sec-WebSocket-Extensions' header");
-            return false;
-        }
-    }
-    return parser.parsedSuccessfully();
-}
-
-String WebSocketExtensionDispatcher::acceptedExtensions() const
-{
-    if (m_acceptedExtensionsBuilder.isEmpty())
-        return String();
-    return m_acceptedExtensionsBuilder.toString();
-}
-
-String WebSocketExtensionDispatcher::failureReason() const
-{
-    return m_failureReason;
-}
-
-} // namespace blink