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// -*- c-basic-offset: 2 -*-
/*
* This file is part of the KDE libraries
* Copyright (C) 2003, 2006 Apple Computer, Inc.
* Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef XMLHttpRequest_h
#define XMLHttpRequest_h
#include "EventTarget.h"
#include "HTTPHeaderMap.h"
#include "JSBridge.h"
#include "KURL.h"
#include "PlatformString.h"
#include "ResourceResponse.h"
#include "StringHash.h"
#include "SubresourceLoaderClient.h"
#include <wtf/HashMap.h>
#include <wtf/Vector.h>
namespace WebCore {
class TextResourceDecoder;
class Document;
class Event;
class EventListener;
class String;
typedef int ExceptionCode;
// these exact numeric values are important because JS expects them
enum XMLHttpRequestState {
Uninitialized = 0, // The initial value.
Open = 1, // The open() method has been successfully called.
Sent = 2, // The user agent successfully completed the request, but no data has yet been received.
Receiving = 3, // Immediately before receiving the message body (if any). All HTTP headers have been received.
Loaded = 4 // The data transfer has been completed.
};
class XMLHttpRequest : public RefCounted<XMLHttpRequest>, public EventTarget, private SubresourceLoaderClient {
public:
XMLHttpRequest(Document*);
~XMLHttpRequest();
virtual XMLHttpRequest* toXMLHttpRequest() { return this; }
static void detachRequests(Document*);
static void cancelRequests(Document*);
String getStatusText(ExceptionCode&) const;
int getStatus(ExceptionCode&) const;
XMLHttpRequestState getReadyState() const;
void open(const String& method, const KURL&, bool async, ExceptionCode&);
void open(const String& method, const KURL&, bool async, const String& user, ExceptionCode&);
void open(const String& method, const KURL&, bool async, const String& user, const String& password, ExceptionCode&);
void send(const String& body, ExceptionCode&);
void abort();
void setRequestHeader(const String& name, const String& value, ExceptionCode&);
void overrideMIMEType(const String& override);
String getAllResponseHeaders(ExceptionCode&) const;
String getResponseHeader(const String& name, ExceptionCode&) const;
const JSString& getResponseText(ExceptionCode&) const;
Document* getResponseXML(ExceptionCode&) const;
void setOnReadyStateChangeListener(EventListener*);
EventListener* onReadyStateChangeListener() const;
void setOnLoadListener(EventListener*);
EventListener* onLoadListener() const;
// Extra wrapper methods for bindings
void setOnreadystatechange(EventListener* listener) {
setOnReadyStateChangeListener(listener);
}
EventListener* onreadystatechange() const {
return onReadyStateChangeListener();
}
void setOnload(EventListener* listener) {
setOnLoadListener(listener);
}
EventListener* onload() const {
return onLoadListener();
}
unsigned short readyState() const {
return static_cast<unsigned short>(getReadyState());
}
String responseText(ExceptionCode& ec) const {
return getResponseText(ec);
}
Document* responseXML(ExceptionCode& ec) const {
return getResponseXML(ec);
}
unsigned short status(ExceptionCode& ec) const {
return static_cast<unsigned short>(getStatus(ec));
}
String statusText(ExceptionCode& ec) const {
return getStatusText(ec);
}
typedef Vector<RefPtr<EventListener> > ListenerVector;
typedef HashMap<AtomicStringImpl*, ListenerVector> EventListenersMap;
// useCapture is not used, even for add/remove pairing (for Firefox compatibility).
virtual void addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
virtual void removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture);
virtual bool dispatchEvent(PassRefPtr<Event>, ExceptionCode&, bool tempEvent = false);
EventListenersMap& eventListeners() { return m_eventListeners; }
Document* document() const { return m_doc; }
using RefCounted<XMLHttpRequest>::ref;
using RefCounted<XMLHttpRequest>::deref;
Document* getOwnerDocument() { return m_doc; }
private:
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
bool urlMatchesDocumentDomain(const KURL&) const;
virtual void willSendRequest(SubresourceLoader*, ResourceRequest& request, const ResourceResponse& redirectResponse);
virtual void didReceiveResponse(SubresourceLoader*, const ResourceResponse&);
virtual void didReceiveData(SubresourceLoader*, const char* data, int size);
virtual void didFail(SubresourceLoader*, const ResourceError&);
virtual void didFinishLoading(SubresourceLoader*);
virtual void receivedCancellation(SubresourceLoader*, const AuthenticationChallenge&);
void processSyncLoadResults(const Vector<char>& data, const ResourceResponse&);
String responseMIMEType() const;
bool responseIsXML() const;
String getRequestHeader(const String& name) const;
void changeState(XMLHttpRequestState newState);
void callReadyStateChangeListener();
void dropProtection();
Document* m_doc;
RefPtr<EventListener> m_onReadyStateChangeListener;
RefPtr<EventListener> m_onLoadListener;
EventListenersMap m_eventListeners;
KURL m_url;
DeprecatedString m_method;
HTTPHeaderMap m_requestHeaders;
String m_mimeTypeOverride;
bool m_async;
RefPtr<SubresourceLoader> m_loader;
XMLHttpRequestState m_state;
ResourceResponse m_response;
String m_encoding;
RefPtr<TextResourceDecoder> m_decoder;
// Unlike most strings in the DOM, we keep this as a KJS::UString, not a WebCore::String.
// That's because these strings can easily get huge (they are filled from the network with
// no parsing) and because JS can easily observe many intermediate states, so it's very useful
// to be able to share the buffer with JavaScript versions of the whole or partial string.
// In contrast, this string doesn't interact much with the rest of the engine so it's not that
// big a cost that it isn't a String.
JSString m_responseText;
mutable bool m_createdDocument;
mutable RefPtr<Document> m_responseXML;
bool m_aborted;
};
} // namespace WebCore
#endif // XMLHttpRequest_h
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