modules/libjar/nsJARChannel.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsJARChannel_h__
   7 #define nsJARChannel_h__
   8
   9 #include "mozilla/net/MemoryDownloader.h"
  10 #include "nsIJARChannel.h"
  11 #include "nsIJARURI.h"
  12 #include "nsIEventTarget.h"
  13 #include "nsIInputStreamPump.h"
  14 #include "nsIInterfaceRequestor.h"
  15 #include "nsIProgressEventSink.h"
  16 #include "nsIStreamListener.h"
  17 #include "nsIZipReader.h"
  18 #include "nsILoadGroup.h"
  19 #include "nsILoadInfo.h"
  20 #include "nsIThreadRetargetableRequest.h"
  21 #include "nsIThreadRetargetableStreamListener.h"
  22 #include "nsHashPropertyBag.h"
  23 #include "nsIFile.h"
  24 #include "nsIURI.h"
  25 #include "nsCOMPtr.h"
  26 #include "nsString.h"
  27 #include "mozilla/Atomics.h"
  28 #include "mozilla/Logging.h"
  29
  30 class nsJARInputThunk;
  31 class nsJARProtocolHandler;
  32 class nsInputStreamPump;
  33
  34 //-----------------------------------------------------------------------------
  35
  36 class nsJARChannel final : public nsIJARChannel,
  37                            public nsIStreamListener,
  38                            public nsIThreadRetargetableRequest,
  39                            public nsIThreadRetargetableStreamListener,
  40                            public nsHashPropertyBag {
  41  public:
  42   NS_DECL_ISUPPORTS_INHERITED
  43   NS_DECL_NSIREQUEST
  44   NS_DECL_NSICHANNEL
  45   NS_DECL_NSIJARCHANNEL
  46   NS_DECL_NSIREQUESTOBSERVER
  47   NS_DECL_NSISTREAMLISTENER
  48   NS_DECL_NSITHREADRETARGETABLEREQUEST
  49   NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
  50
  51   nsJARChannel();
  52
  53   nsresult Init(nsIURI* uri);
  54
  55   void SetFile(nsIFile* file);
  56
  57  private:
  58   virtual ~nsJARChannel();
  59
  60   nsresult CreateJarInput(nsIZipReaderCache*, nsJARInputThunk**);
  61   nsresult LookupFile();
  62   nsresult OpenLocalFile();
  63   nsresult ContinueOpenLocalFile(nsJARInputThunk* aInput, bool aIsSyncCall);
  64   nsresult OnOpenLocalFileComplete(nsresult aResult, bool aIsSyncCall);
  65   nsresult CheckPendingEvents();
  66   void NotifyError(nsresult aError);
  67   void FireOnProgress(uint64_t aProgress);
  68
  69   // Returns false if we don't know the content type of this channel, in which
  70   // case we should use the content-type hint.
  71   bool GetContentTypeGuess(nsACString&) const;
  72   void SetOpened();
  73
  74   nsCString mSpec;
  75
  76   bool mOpened;
  77   mozilla::Atomic<bool, mozilla::ReleaseAcquire> mCanceled;
  78   bool mOnDataCalled = false;
  79
  80   RefPtr<nsJARProtocolHandler> mJarHandler;
  81   nsCOMPtr<nsIJARURI> mJarURI;
  82   nsCOMPtr<nsIURI> mOriginalURI;
  83   nsCOMPtr<nsISupports> mOwner;
  84   nsCOMPtr<nsILoadInfo> mLoadInfo;
  85   nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
  86   nsCOMPtr<nsIProgressEventSink> mProgressSink;
  87   nsCOMPtr<nsILoadGroup> mLoadGroup;
  88   nsCOMPtr<nsIStreamListener> mListener;
  89   nsCString mContentType;
  90   nsCString mContentCharset;
  91   int64_t mContentLength;
  92   uint32_t mLoadFlags;
  93   mozilla::Atomic<nsresult, mozilla::ReleaseAcquire> mStatus;
  94   bool mIsPending;  // the AsyncOpen is in progress.
  95
  96   bool mEnableOMT;
  97   // |Cancel()|, |Suspend()|, and |Resume()| might be called during AsyncOpen.
  98   struct {
  99     bool isCanceled;
 100     mozilla::Atomic<uint32_t> suspendCount;
 101   } mPendingEvent;
 102
 103   nsCOMPtr<nsIInputStreamPump> mPump;
 104   // mRequest is only non-null during OnStartRequest, so we'll have a pointer
 105   // to the request if we get called back via RetargetDeliveryTo.
 106   nsCOMPtr<nsIRequest> mRequest;
 107   nsCOMPtr<nsIFile> mJarFile;
 108   nsCOMPtr<nsIFile> mJarFileOverride;
 109   nsCOMPtr<nsIZipReader> mPreCachedJarReader;
 110   nsCOMPtr<nsIURI> mJarBaseURI;
 111   nsCString mJarEntry;
 112   nsCString mInnerJarEntry;
 113
 114   // use StreamTransportService as background thread
 115   nsCOMPtr<nsIEventTarget> mWorker;
 116 };
 117
 118 #endif  // nsJARChannel_h__