nsFileChannel.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cin: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsFileChannel_h__

#define nsFileChannel_h__

#include "nsBaseChannel.h"

#include "nsIFileChannel.h"

#include "nsIUploadChannel.h"

class nsFileChannel : public nsBaseChannel,

                      public nsIFileChannel,

                      public nsIUploadChannel,

                      public nsIIdentChannel {

 public:

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_NSIFILECHANNEL

  NS_DECL_NSIUPLOADCHANNEL

  NS_FORWARD_NSIREQUEST(nsBaseChannel::)

  NS_FORWARD_NSICHANNEL(nsBaseChannel::)

  NS_DECL_NSIIDENTCHANNEL

  explicit nsFileChannel(nsIURI* uri);

  nsresult Init();

 protected:

  ~nsFileChannel() = default;

  // Called to construct a blocking file input stream for the given file.  This

  // method also returns a best guess at the content-type for the data stream.

  // NOTE: If the channel has a type hint set, contentType will be left

  // untouched. The caller should not use it in that case.

  [[nodiscard]] nsresult MakeFileInputStream(nsIFile* file,

                                             nsCOMPtr<nsIInputStream>& stream,

                                             nsCString& contentType,

                                             bool async);

  [[nodiscard]] virtual nsresult OpenContentStream(

      bool async, nsIInputStream** result, nsIChannel** channel) override;

  // Implementing the pump blocking promise to fixup content length on a

  // background thread prior to calling on mListener

  virtual nsresult ListenerBlockingPromise(BlockingPromise** promise) override;

 private:

  nsresult FixupContentLength(bool async);

  nsresult MaybeSendFileOpenNotification();

  nsCOMPtr<nsIInputStream> mUploadStream;

  int64_t mUploadLength;

  nsCOMPtr<nsIURI> mFileURI;

  uint64_t mChannelId = 0;

};

#endif  // !nsFileChannel_h__