1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/modules/libjar/nsJARInputStream.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,73 @@
1.4 +/* nsJARInputStream.h
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef nsJARINPUTSTREAM_h__
1.11 +#define nsJARINPUTSTREAM_h__
1.12 +
1.13 +#include "nsIInputStream.h"
1.14 +#include "nsJAR.h"
1.15 +#include "nsTArray.h"
1.16 +#include "mozilla/Attributes.h"
1.17 +
1.18 +/*-------------------------------------------------------------------------
1.19 + * Class nsJARInputStream declaration. This class defines the type of the
1.20 + * object returned by calls to nsJAR::GetInputStream(filename) for the
1.21 + * purpose of reading a file item out of a JAR file.
1.22 + *------------------------------------------------------------------------*/
1.23 +class nsJARInputStream MOZ_FINAL : public nsIInputStream
1.24 +{
1.25 + public:
1.26 + nsJARInputStream() :
1.27 + mOutSize(0), mInCrc(0), mOutCrc(0), mCurPos(0),
1.28 + mMode(MODE_NOTINITED)
1.29 + {
1.30 + memset(&mZs, 0, sizeof(z_stream));
1.31 + }
1.32 +
1.33 + ~nsJARInputStream() { Close(); }
1.34 +
1.35 + NS_DECL_THREADSAFE_ISUPPORTS
1.36 + NS_DECL_NSIINPUTSTREAM
1.37 +
1.38 + // takes ownership of |fd|, even on failure
1.39 + nsresult InitFile(nsJAR *aJar, nsZipItem *item);
1.40 +
1.41 + nsresult InitDirectory(nsJAR *aJar,
1.42 + const nsACString& aJarDirSpec,
1.43 + const char* aDir);
1.44 +
1.45 + private:
1.46 + nsRefPtr<nsZipHandle> mFd; // handle for reading
1.47 + uint32_t mOutSize; // inflated size
1.48 + uint32_t mInCrc; // CRC as provided by the zipentry
1.49 + uint32_t mOutCrc; // CRC as calculated by me
1.50 + z_stream mZs; // zip data structure
1.51 +
1.52 + /* For directory reading */
1.53 + nsRefPtr<nsJAR> mJar; // string reference to zipreader
1.54 + uint32_t mNameLen; // length of dirname
1.55 + nsCString mBuffer; // storage for generated text of stream
1.56 + uint32_t mCurPos; // Current position in buffer
1.57 + uint32_t mArrPos; // current position within mArray
1.58 + nsTArray<nsCString> mArray; // array of names in (zip) directory
1.59 +
1.60 + typedef enum {
1.61 + MODE_NOTINITED,
1.62 + MODE_CLOSED,
1.63 + MODE_DIRECTORY,
1.64 + MODE_INFLATE,
1.65 + MODE_COPY
1.66 + } JISMode;
1.67 +
1.68 + JISMode mMode; // Modus of the stream
1.69 +
1.70 + nsresult ContinueInflate(char* aBuf, uint32_t aCount, uint32_t* aBytesRead);
1.71 + nsresult ReadDirectory(char* aBuf, uint32_t aCount, uint32_t* aBytesRead);
1.72 + uint32_t CopyDataToBuffer(char* &aBuffer, uint32_t &aCount);
1.73 +};
1.74 +
1.75 +#endif /* nsJARINPUTSTREAM_h__ */
1.76 +
