/* nsJARInputStream.cpp * * The contents of this file are subject to the Mozilla Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is Netscape Communicator source code. * The Initial Developer of the Original Code is Netscape Communications * Corporation. Portions created by Netscape are * Copyright (C) 1999 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * Mitch Stoltz */ #include "nsJARInputStream.h" #include "zipfile.h" // defines ZIP error codes #include "nsZipArchive.h" /*--------------------------------------------- * nsISupports implementation *--------------------------------------------*/ NS_IMPL_THREADSAFE_ISUPPORTS1(nsJARInputStream, nsIInputStream); /*---------------------------------------------------------- * nsJARInputStream implementation *--------------------------------------------------------*/ NS_IMETHODIMP nsJARInputStream::Available(PRUint32 *_retval) { if (Zip() == nsnull) *_retval = 0; else *_retval = Zip()->Available(mReadInfo); return NS_OK; } NS_IMETHODIMP nsJARInputStream::Read(char* buf, PRUint32 count, PRUint32 *bytesRead) { if (Zip() == nsnull) { *bytesRead = 0; return NS_OK; } PRInt32 err = Zip()->Read(mReadInfo, buf, count, bytesRead); return err == ZIP_OK ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsJARInputStream::ReadSegments(nsWriteSegmentFun writer, void * closure, PRUint32 count, PRUint32 *_retval) { char *readBuf = (char *)nsMemory::Alloc(count); PRUint32 nBytes; if (!readBuf) return NS_ERROR_OUT_OF_MEMORY; nsresult rv = Read(readBuf, count, &nBytes); *_retval = 0; if (NS_SUCCEEDED(rv)) { rv = writer(this, closure, readBuf, 0, nBytes, _retval); NS_ASSERTION(nBytes == *_retval, "Didn't write all Data."); } nsMemory::Free(readBuf); return rv; } NS_IMETHODIMP nsJARInputStream::GetNonBlocking(PRBool *aNonBlocking) { NS_NOTREACHED("GetNonBlocking"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsJARInputStream::GetObserver(nsIInputStreamObserver * *aObserver) { NS_NOTREACHED("GetObserver"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsJARInputStream::SetObserver(nsIInputStreamObserver * aObserver) { NS_NOTREACHED("SetObserver"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsJARInputStream::Close() { NS_IF_RELEASE(mJAR); if (mReadInfo) delete mReadInfo; return NS_OK; } nsresult nsJARInputStream::Init(nsJAR* aJAR, const char* aFilename) { if (!aFilename) return NS_ERROR_NULL_POINTER; mJAR = aJAR; NS_ADDREF(mJAR); PRInt32 result; result = Zip()->ReadInit(aFilename, &mReadInfo); if (result != ZIP_OK) return NS_ERROR_FAILURE; return NS_OK; } NS_METHOD nsJARInputStream::Create(nsISupports* ignored, const nsIID& aIID, void* *aResult) { nsJARInputStream* is = new nsJARInputStream(); if (is == nsnull) return NS_ERROR_OUT_OF_MEMORY; NS_ADDREF(is); nsresult rv = is->QueryInterface(aIID, aResult); NS_RELEASE(is); return rv; } //---------------------------------------------- // nsJARInputStream constructor and destructor //---------------------------------------------- nsJARInputStream::nsJARInputStream() : mJAR(nsnull), mReadInfo(nsnull) { NS_INIT_REFCNT(); } nsJARInputStream::~nsJARInputStream() { Close(); }