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comparison: modules/libjar/nsJARInputStream.h
modules/libjar/nsJARInputStream.h
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| 1 /* nsJARInputStream.h | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef nsJARINPUTSTREAM_h__ | |
| 8 #define nsJARINPUTSTREAM_h__ | |
| 9 | |
| 10 #include "nsIInputStream.h" | |
| 11 #include "nsJAR.h" | |
| 12 #include "nsTArray.h" | |
| 13 #include "mozilla/Attributes.h" | |
| 14 | |
| 15 /*------------------------------------------------------------------------- | |
| 16 * Class nsJARInputStream declaration. This class defines the type of the | |
| 17 * object returned by calls to nsJAR::GetInputStream(filename) for the | |
| 18 * purpose of reading a file item out of a JAR file. | |
| 19 *------------------------------------------------------------------------*/ | |
| 20 class nsJARInputStream MOZ_FINAL : public nsIInputStream | |
| 21 { | |
| 22 public: | |
| 23 nsJARInputStream() : | |
| 24 mOutSize(0), mInCrc(0), mOutCrc(0), mCurPos(0), | |
| 25 mMode(MODE_NOTINITED) | |
| 26 { | |
| 27 memset(&mZs, 0, sizeof(z_stream)); | |
| 28 } | |
| 29 | |
| 30 ~nsJARInputStream() { Close(); } | |
| 31 | |
| 32 NS_DECL_THREADSAFE_ISUPPORTS | |
| 33 NS_DECL_NSIINPUTSTREAM | |
| 34 | |
| 35 // takes ownership of |fd|, even on failure | |
| 36 nsresult InitFile(nsJAR *aJar, nsZipItem *item); | |
| 37 | |
| 38 nsresult InitDirectory(nsJAR *aJar, | |
| 39 const nsACString& aJarDirSpec, | |
| 40 const char* aDir); | |
| 41 | |
| 42 private: | |
| 43 nsRefPtr<nsZipHandle> mFd; // handle for reading | |
| 44 uint32_t mOutSize; // inflated size | |
| 45 uint32_t mInCrc; // CRC as provided by the zipentry | |
| 46 uint32_t mOutCrc; // CRC as calculated by me | |
| 47 z_stream mZs; // zip data structure | |
| 48 | |
| 49 /* For directory reading */ | |
| 50 nsRefPtr<nsJAR> mJar; // string reference to zipreader | |
| 51 uint32_t mNameLen; // length of dirname | |
| 52 nsCString mBuffer; // storage for generated text of stream | |
| 53 uint32_t mCurPos; // Current position in buffer | |
| 54 uint32_t mArrPos; // current position within mArray | |
| 55 nsTArray<nsCString> mArray; // array of names in (zip) directory | |
| 56 | |
| 57 typedef enum { | |
| 58 MODE_NOTINITED, | |
| 59 MODE_CLOSED, | |
| 60 MODE_DIRECTORY, | |
| 61 MODE_INFLATE, | |
| 62 MODE_COPY | |
| 63 } JISMode; | |
| 64 | |
| 65 JISMode mMode; // Modus of the stream | |
| 66 | |
| 67 nsresult ContinueInflate(char* aBuf, uint32_t aCount, uint32_t* aBytesRead); | |
| 68 nsresult ReadDirectory(char* aBuf, uint32_t aCount, uint32_t* aBytesRead); | |
| 69 uint32_t CopyDataToBuffer(char* &aBuffer, uint32_t &aCount); | |
| 70 }; | |
| 71 | |
| 72 #endif /* nsJARINPUTSTREAM_h__ */ | |
| 73 |
