chromium/components/pdf/browser/plugin_response_writer.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/pdf/browser/plugin_response_writer.h"

#include <memory>
#include <string>
#include <utility>

#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/scoped_refptr.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "components/pdf/browser/pdf_stream_delegate.h"
#include "mojo/public/c/system/types.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "mojo/public/cpp/system/data_pipe_producer.h"
#include "mojo/public/cpp/system/string_data_source.h"
#include "net/base/net_errors.h"
#include "net/http/http_response_headers.h"
#include "pdf/pdf_features.h"
#include "services/network/public/cpp/url_loader_completion_status.h"
#include "services/network/public/mojom/url_loader.mojom.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
#include "url/gurl.h"

namespace pdf {

namespace {

// Generates a response ready to be used for creating the PDF loader. The
// returned value is a raw string in which the escape characters are not
// processed.
// Note: This function is security sensitive since it defines the boundary of
// HTML and the embedded PDF. Must limit information shared with the PDF plugin
// process through this response.
std::string GenerateResponse(const PdfStreamDelegate::StreamInfo& stream_info) { … }

}  // namespace

PluginResponseWriter::PluginResponseWriter(
    const PdfStreamDelegate::StreamInfo& stream_info,
    mojo::PendingRemote<network::mojom::URLLoaderClient> client)
    : … { … }

PluginResponseWriter::~PluginResponseWriter() = default;

void PluginResponseWriter::Start(base::OnceClosure done_callback) { … }

void PluginResponseWriter::OnWrite(base::OnceClosure done_callback,
                                   MojoResult result) { … }

}  // namespace pdf