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// Copyright (c) 2011 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_RENDERER_SECURITY_FILTER_PEER_H_
#define CHROME_RENDERER_SECURITY_FILTER_PEER_H_
#include <string>
#include "content/public/child/request_peer.h"
#include "content/public/common/resource_response_info.h"
#include "content/public/common/resource_type.h"
// The SecurityFilterPeer is a proxy to a
// content::RequestPeer instance. It is used to pre-process
// unsafe resources (such as mixed-content resource).
// Call the factory method CreateSecurityFilterPeer() to obtain an instance of
// SecurityFilterPeer based on the original Peer.
// NOTE: subclasses should ensure they delete themselves at the end of the
// OnReceiveComplete call.
class SecurityFilterPeer : public content::RequestPeer {
public:
~SecurityFilterPeer() override;
static SecurityFilterPeer* CreateSecurityFilterPeerForDeniedRequest(
content::ResourceType resource_type,
content::RequestPeer* peer,
int os_error);
static SecurityFilterPeer* CreateSecurityFilterPeerForFrame(
content::RequestPeer* peer,
int os_error);
// content::RequestPeer methods.
void OnUploadProgress(uint64 position, uint64 size) override;
bool OnReceivedRedirect(const net::RedirectInfo& redirect_info,
const content::ResourceResponseInfo& info) override;
void OnDownloadedData(int len, int encoded_data_length) override {}
protected:
explicit SecurityFilterPeer(content::RequestPeer* peer);
content::RequestPeer* original_peer_;
private:
DISALLOW_COPY_AND_ASSIGN(SecurityFilterPeer);
};
// The BufferedPeer reads all the data of the request into an internal buffer.
// Subclasses should implement DataReady() to process the data as necessary.
class BufferedPeer : public SecurityFilterPeer {
public:
BufferedPeer(content::RequestPeer* peer, const std::string& mime_type);
~BufferedPeer() override;
// content::RequestPeer Implementation.
void OnReceivedResponse(const content::ResourceResponseInfo& info) override;
void OnReceivedData(scoped_ptr<ReceivedData> data) override;
void OnCompletedRequest(int error_code,
bool was_ignored_by_handler,
bool stale_copy_in_cache,
const std::string& security_info,
const base::TimeTicks& completion_time,
int64 total_transfer_size) override;
void OnReceivedCompletedResponse(const content::ResourceResponseInfo& info,
scoped_ptr<ReceivedData> data,
int error_code,
bool was_ignored_by_handler,
bool stale_copy_in_cache,
const std::string& security_info,
const base::TimeTicks& completion_time,
int64 total_transfer_size) override;
protected:
// Invoked when the entire request has been processed before the data is sent
// to the original peer, giving an opportunity to subclasses to process the
// data in data_. If this method returns true, the data is fed to the
// original peer, if it returns false, an error is sent instead.
virtual bool DataReady() = 0;
content::ResourceResponseInfo response_info_;
std::string data_;
private:
std::string mime_type_;
DISALLOW_COPY_AND_ASSIGN(BufferedPeer);
};
// The ReplaceContentPeer cancels the request and serves the provided data as
// content instead.
// TODO(jcampan): For now the resource is still being fetched, but ignored, as
// once we have provided the replacement content, the associated pending request
// in ResourceDispatcher is removed and further OnReceived* notifications are
// ignored.
class ReplaceContentPeer : public SecurityFilterPeer {
public:
ReplaceContentPeer(content::RequestPeer* peer,
const std::string& mime_type,
const std::string& data);
~ReplaceContentPeer() override;
// content::RequestPeer Implementation.
void OnReceivedResponse(const content::ResourceResponseInfo& info) override;
void OnReceivedData(scoped_ptr<ReceivedData> data) override;
void OnCompletedRequest(int error_code,
bool was_ignored_by_handler,
bool stale_copy_in_cache,
const std::string& security_info,
const base::TimeTicks& completion_time,
int64 total_transfer_size) override;
void OnReceivedCompletedResponse(const content::ResourceResponseInfo& info,
scoped_ptr<ReceivedData> data,
int error_code,
bool was_ignored_by_handler,
bool stale_copy_in_cache,
const std::string& security_info,
const base::TimeTicks& completion_time,
int64 total_transfer_size) override;
private:
content::ResourceResponseInfo response_info_;
std::string mime_type_;
std::string data_;
DISALLOW_COPY_AND_ASSIGN(ReplaceContentPeer);
};
#endif // CHROME_RENDERER_SECURITY_FILTER_PEER_H_
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