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// Copyright (c) 2012 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.
#ifndef CHROME_BROWSER_BROWSING_DATA_COOKIE_HELPER_H_
#define CHROME_BROWSER_BROWSING_DATA_COOKIE_HELPER_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "net/cookies/cookie_monster.h"
class GURL;
class Profile;
namespace net {
class URLRequestContextGetter;
}
// This class fetches cookie information on behalf of a caller
// on the UI thread.
// A client of this class need to call StartFetching from the UI thread to
// initiate the flow, and it'll be notified by the callback in its UI
// thread at some later point.
class BrowsingDataCookieHelper
: public base::RefCountedThreadSafe<BrowsingDataCookieHelper> {
public:
explicit BrowsingDataCookieHelper(Profile* profile);
// Starts the fetching process, which will notify its completion via
// callback.
// This must be called only in the UI thread.
virtual void StartFetching(
const base::Callback<void(const net::CookieList& cookies)>& callback);
// Requests a single cookie to be deleted in the IO thread. This must be
// called in the UI thread.
virtual void DeleteCookie(const net::CookieMonster::CanonicalCookie& cookie);
protected:
friend class base::RefCountedThreadSafe<BrowsingDataCookieHelper>;
virtual ~BrowsingDataCookieHelper();
Profile* profile() { return profile_; }
private:
// Fetch the cookies. This must be called in the IO thread.
void FetchCookiesOnIOThread();
// Callback function for get cookie. This must be called in the IO thread.
void OnFetchComplete(const net::CookieList& cookies);
// Notifies the completion callback. This must be called in the UI thread.
void NotifyInUIThread(const net::CookieList& cookies);
// Delete a single cookie. This must be called in IO thread.
void DeleteCookieOnIOThread(
const net::CookieMonster::CanonicalCookie& cookie);
// Indicates whether or not we're currently fetching information:
// it's true when StartFetching() is called in the UI thread, and it's reset
// after we notify the callback in the UI thread.
// This only mutates on the UI thread.
bool is_fetching_;
Profile* profile_;
scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
// This only mutates on the UI thread.
base::Callback<void(const net::CookieList& cookies)> completion_callback_;
DISALLOW_COPY_AND_ASSIGN(BrowsingDataCookieHelper);
};
// This class is a thin wrapper around BrowsingDataCookieHelper that does not
// fetch its information from the persistent cookie store, but gets them passed
// as a parameter during construction.
class CannedBrowsingDataCookieHelper : public BrowsingDataCookieHelper {
public:
explicit CannedBrowsingDataCookieHelper(Profile* profile);
// Return a copy of the cookie helper. Only one consumer can use the
// StartFetching method at a time, so we need to create a copy of the helper
// everytime we instantiate a cookies tree model for it.
CannedBrowsingDataCookieHelper* Clone();
// Adds cookies and delete the current cookies with the same Name, Domain,
// and Path as the newly created ones.
void AddReadCookies(const GURL& url,
const net::CookieList& cookie_list);
// Adds cookies that will be stored by the CookieMonster. Designed to mirror
// the logic of SetCookieWithOptions.
void AddChangedCookie(const GURL& url,
const std::string& cookie_line,
const net::CookieOptions& options);
// Clears the list of canned cookies.
void Reset();
// True if no cookie are currently stored.
bool empty() const;
// BrowsingDataCookieHelper methods.
virtual void StartFetching(
const net::CookieMonster::GetCookieListCallback& callback) OVERRIDE;
// Returns the currently stored number of cookies.
size_t GetCookieCount() const;
private:
// Check if the cookie list contains a cookie with the same name,
// domain, and path as the newly created cookie. Delete the old cookie
// if does.
bool DeleteMetchingCookie(
const net::CookieMonster::CanonicalCookie& add_cookie);
virtual ~CannedBrowsingDataCookieHelper();
net::CookieList cookie_list_;
DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataCookieHelper);
};
#endif // CHROME_BROWSER_BROWSING_DATA_COOKIE_HELPER_H_
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