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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This class is used by the RenderView to interact with a PhishingClassifier.
#ifndef CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_
#define CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_
#pragma once
#include "base/scoped_ptr.h"
#include "base/string16.h"
#include "googleurl/src/gurl.h"
class RenderView;
namespace WebKit {
class WebFrame;
}
namespace safe_browsing {
class PhishingClassifier;
class Scorer;
class PhishingClassifierDelegate {
public:
// The RenderView owns us. This object takes ownership of the classifier.
// Note that if classifier is null, a default instance of PhishingClassifier
// will be used.
PhishingClassifierDelegate(RenderView* render_view,
PhishingClassifier* classifier);
~PhishingClassifierDelegate();
// Called by the RenderView once there is a phishing scorer available.
// The scorer is passed on to the classifier.
void SetPhishingScorer(const safe_browsing::Scorer* scorer);
// Called by the RenderView when a page has started loading in the given
// WebFrame. Typically, this will cause any pending classification to be
// cancelled. However, if the load is for the main frame, and the toplevel
// URL has not changed, we continue running the current classification.
void CommittedLoadInFrame(WebKit::WebFrame* frame);
// Called by the RenderView once a page has finished loading. Determines
// whether a new toplevel load has taken place, and if so, begins
// classification. May modify page_text. Note that it is an error to
// call OnNavigate if there is a pending classification.
void FinishedLoad(string16* page_text);
// Cancels any pending classification and frees the page text. Called by
// the RenderView when the RenderView is going away.
void CancelPendingClassification();
private:
friend class PhishingClassifierDelegateTest;
// Called when classification for the current page finishes.
void ClassificationDone(bool is_phishy, double phishy_score);
// Returns the RenderView's toplevel URL, with the ref stripped.
GURL StripToplevelUrl();
// The RenderView that owns this object.
RenderView* render_view_;
// The PhishingClassifier to use for the RenderView. This is created once
// a scorer is made available via SetPhishingScorer().
scoped_ptr<PhishingClassifier> classifier_;
// The last URL that was sent to the phishing classifier.
GURL last_url_sent_to_classifier_;
// The page id of the last load that was sent to the phishing classifier.
// This is used to suppress phishing classification on back and forward
// navigations in history.
int32 last_page_id_sent_to_classifier_;
// The page text that will be analyzed by the phishing classifier. This is
// set by OnNavigate and cleared when the classifier finishes. Note that if
// there is no classifier yet when OnNavigate is called, the page text will
// be cached until the scorer is set and a classifier can be created.
string16 classifier_page_text_;
// Set to true if we should run the phishing classifier on the current page
// as soon as SetPhishingScorer() is called.
bool pending_classification_;
DISALLOW_COPY_AND_ASSIGN(PhishingClassifierDelegate);
};
} // namespace safe_browsing
#endif // CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_
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