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/*
* Copyright 2010, The Android Open Source Project
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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.
*/
#ifndef WebUrlLoaderClient_h
#define WebUrlLoaderClient_h
#include "ChromiumIncludes.h"
#include "RefCounted.h"
#include "WebResponse.h"
#include "WebUrlLoader.h"
#include <string>
#include <deque>
#include <string>
#include <vector>
class Lock;
class ConditionVariable;
namespace base {
class Thread;
}
namespace net {
class IOBuffer;
class AuthChallengeInfo;
}
namespace android {
class WebFrame;
class WebRequest;
class WebRequestContext;
// This class handles communication between the IO thread where loading happens
// and the webkit main thread.
// TODO:
// - Implement didFail
// - Implement sync requests
// - Implement downloadFile
// - Implement pauseLoad
class WebUrlLoaderClient : public base::RefCountedThreadSafe<WebUrlLoaderClient> {
public:
WebUrlLoaderClient(WebFrame*, WebCore::ResourceHandle*, const WebCore::ResourceRequest&);
// Called from WebCore, will be forwarded to the IO thread
bool start(bool isMainResource, bool sync, WebRequestContext*);
void cancel();
void downloadFile();
void pauseLoad(bool pause) {} // Android method, does nothing for now
void setAuth(const std::string& username, const std::string& password);
void cancelAuth();
void proceedSslCertError();
void cancelSslCertError(int cert_error);
typedef void CallbackFunction(void*);
// This is called from the IO thread, and dispatches the callback to the main thread.
// (For asynchronous calls, we just delegate to WebKit's callOnMainThread.)
void maybeCallOnMainThread(Task* task);
// Called by WebRequest (using maybeCallOnMainThread), should be forwarded to WebCore.
void didReceiveResponse(PassOwnPtr<WebResponse>);
void didReceiveData(scoped_refptr<net::IOBuffer>, int size);
void didReceiveDataUrl(PassOwnPtr<std::string>);
void didReceiveAndroidFileData(PassOwnPtr<std::vector<char> >);
void didFinishLoading();
void didFail(PassOwnPtr<WebResponse>);
void willSendRequest(PassOwnPtr<WebResponse>);
void authRequired(scoped_refptr<net::AuthChallengeInfo>, bool firstTime);
void reportSslCertError(int cert_error, net::X509Certificate* cert);
// Handle to the chrome IO thread
static base::Thread* ioThread();
private:
friend class base::RefCountedThreadSafe<WebUrlLoaderClient>;
virtual ~WebUrlLoaderClient();
void finish();
WebFrame* m_webFrame;
RefPtr<WebCore::ResourceHandle> m_resourceHandle;
bool m_isMainResource;
bool m_cancelling;
bool m_sync;
volatile bool m_finished;
scoped_refptr<WebRequest> m_request;
OwnPtr<WebResponse> m_response; // NULL until didReceiveResponse is called.
// Check if a request is active
bool isActive() const;
// Mutex and condition variable used for synchronous requests.
// Note that these are static. This works because there's only one main thread.
static Lock* syncLock();
static ConditionVariable* syncCondition();
// Queue of callbacks to be executed by the main thread. Must only be accessed inside mutex.
std::deque<Task*> m_queue;
};
} // namespace android
#endif
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