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// Copyright 2016 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 PDF_URL_LOADER_WRAPPER_IMPL_H_
#define PDF_URL_LOADER_WRAPPER_IMPL_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "pdf/ppapi_migration/callback.h"
#include "pdf/url_loader_wrapper.h"
#include "ui/gfx/range/range.h"
namespace chrome_pdf {
class UrlLoader;
class URLLoaderWrapperImpl : public URLLoaderWrapper {
public:
explicit URLLoaderWrapperImpl(std::unique_ptr<UrlLoader> url_loader);
URLLoaderWrapperImpl(const URLLoaderWrapperImpl&) = delete;
URLLoaderWrapperImpl& operator=(const URLLoaderWrapperImpl&) = delete;
~URLLoaderWrapperImpl() override;
// URLLoaderWrapper overrides:
int GetContentLength() const override;
bool IsAcceptRangesBytes() const override;
bool IsContentEncoded() const override;
std::string GetContentType() const override;
std::string GetContentDisposition() const override;
int GetStatusCode() const override;
bool IsMultipart() const override;
bool GetByteRangeStart(int* start) const override;
void Close() override;
void OpenRange(const std::string& url,
const std::string& referrer_url,
uint32_t position,
uint32_t size,
ResultCallback callback) override;
void ReadResponseBody(char* buffer,
int buffer_size,
ResultCallback callback) override;
void SetResponseHeaders(const std::string& response_headers);
private:
void SetHeadersFromLoader();
void ParseHeaders();
void DidOpen(ResultCallback callback, int32_t result);
void DidRead(ResultCallback callback, int32_t result);
void ReadResponseBodyImpl(ResultCallback callback);
std::unique_ptr<UrlLoader> url_loader_;
std::string response_headers_;
int content_length_ = -1;
bool accept_ranges_bytes_ = false;
bool content_encoded_ = false;
std::string content_type_;
std::string content_disposition_;
std::string multipart_boundary_;
gfx::Range byte_range_ = gfx::Range::InvalidRange();
bool is_multipart_ = false;
char* buffer_ = nullptr;
uint32_t buffer_size_ = 0;
bool multi_part_processed_ = false;
base::OneShotTimer read_starter_;
base::WeakPtrFactory<URLLoaderWrapperImpl> weak_factory_{this};
};
} // namespace chrome_pdf
#endif // PDF_URL_LOADER_WRAPPER_IMPL_H_
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