mirror of
https://github.com/mozilla/gecko-dev.git
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659 lines
18 KiB
C++
659 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*
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*/
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#include "nsNetUtil.h"
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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#include "nsIFileSpec.h"
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#include "nsSpecialSystemDirectory.h"
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#include "nsJARChannel.h"
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#include "nsCRT.h"
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#include "nsIFileTransportService.h"
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#include "nsIURL.h"
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#include "nsIMIMEService.h"
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#include "nsAutoLock.h"
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static NS_DEFINE_CID(kFileTransportServiceCID, NS_FILETRANSPORTSERVICE_CID);
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static NS_DEFINE_CID(kMIMEServiceCID, NS_MIMESERVICE_CID);
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static NS_DEFINE_CID(kZipReaderCID, NS_ZIPREADER_CID);
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static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
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////////////////////////////////////////////////////////////////////////////////
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class nsJARDownloadObserver : public nsIStreamObserver
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{
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD OnStartRequest(nsIChannel* jarCacheTransport,
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nsISupports* context) {
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return NS_OK;
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}
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NS_IMETHOD OnStopRequest(nsIChannel* jarCacheTransport,
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nsISupports* context,
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nsresult status,
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const PRUnichar* aMsg) {
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nsresult rv = NS_OK;
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nsAutoLock lock(mJARChannel->mLock);
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if (NS_SUCCEEDED(status) && mJARChannel->mJarCacheTransport) {
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NS_ASSERTION(jarCacheTransport == (mJARChannel->mJarCacheTransport).get(),
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"wrong transport");
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// after successfully downloading the jar file to the cache,
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// start the extraction process:
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NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIFileChannel> jarCacheFile;
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rv = serv->NewChannelFromNativePath(mJarCacheFile.GetNativePathCString(),
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mJARChannel->mLoadGroup,
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mJARChannel->mCallbacks,
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mJARChannel->mLoadAttributes,
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nsnull,
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mJARChannel->mBufferSegmentSize,
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mJARChannel->mBufferMaxSize,
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getter_AddRefs(jarCacheFile));
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if (NS_FAILED(rv)) return rv;
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rv = mJARChannel->ExtractJARElement(jarCacheFile);
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}
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mJARChannel->mJarCacheTransport = nsnull;
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return rv;
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}
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nsJARDownloadObserver(nsFileSpec& jarCacheFile, nsJARChannel* jarChannel) {
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NS_INIT_REFCNT();
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mJarCacheFile = jarCacheFile;
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mJARChannel = jarChannel;
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NS_ADDREF(mJARChannel);
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}
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virtual ~nsJARDownloadObserver() {
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NS_RELEASE(mJARChannel);
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}
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protected:
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nsFileSpec mJarCacheFile;
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nsJARChannel* mJARChannel;
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};
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NS_IMPL_ISUPPORTS1(nsJARDownloadObserver, nsIStreamObserver)
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////////////////////////////////////////////////////////////////////////////////
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nsJARChannel::nsJARChannel()
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: mCommand(nsnull),
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mContentType(nsnull),
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mJAREntry(nsnull)
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{
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NS_INIT_REFCNT();
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}
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nsJARChannel::~nsJARChannel()
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{
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if (mCommand)
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nsCRT::free(mCommand);
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if (mContentType)
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nsCRT::free(mContentType);
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if (mJAREntry)
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nsCRT::free(mJAREntry);
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}
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NS_IMPL_ISUPPORTS6(nsJARChannel,
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nsIJARChannel,
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nsIChannel,
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nsIRequest,
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nsIStreamObserver,
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nsIStreamListener,
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nsIFileSystem)
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NS_METHOD
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nsJARChannel::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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nsresult rv;
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsJARChannel* jarChannel = new nsJARChannel();
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if (jarChannel == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(jarChannel);
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rv = jarChannel->QueryInterface(aIID, aResult);
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NS_RELEASE(jarChannel);
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return rv;
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}
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nsresult
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nsJARChannel::Init(nsIJARProtocolHandler* aHandler,
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const char* command,
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nsIURI* uri,
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nsILoadGroup* aLoadGroup,
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nsIInterfaceRequestor* notificationCallbacks,
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nsLoadFlags loadAttributes,
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nsIURI* originalURI,
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PRUint32 bufferSegmentSize,
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PRUint32 bufferMaxSize)
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{
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nsresult rv;
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mURI = do_QueryInterface(uri, &rv);
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if (NS_FAILED(rv)) return rv;
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mCommand = nsCRT::strdup(command);
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if (mCommand == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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mOriginalURI = originalURI ? originalURI : uri;
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mBufferSegmentSize = bufferSegmentSize;
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mBufferMaxSize = bufferMaxSize;
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rv = SetLoadAttributes(loadAttributes);
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if (NS_FAILED(rv)) return rv;
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rv = SetLoadGroup(aLoadGroup);
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if (NS_FAILED(rv)) return rv;
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rv = SetNotificationCallbacks(notificationCallbacks);
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if (NS_FAILED(rv)) return rv;
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mLock = PR_NewLock();
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if (mLock == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIRequest methods
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NS_IMETHODIMP
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nsJARChannel::IsPending(PRBool* result)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARChannel::Cancel()
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{
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nsresult rv;
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nsAutoLock lock(mLock);
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if (mJarCacheTransport) {
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rv = mJarCacheTransport->Cancel();
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if (NS_FAILED(rv)) return rv;
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mJarCacheTransport = nsnull;
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}
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if (mJarExtractionTransport) {
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rv = mJarExtractionTransport->Cancel();
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if (NS_FAILED(rv)) return rv;
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mJarExtractionTransport = nsnull;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::Suspend()
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{
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nsresult rv;
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nsAutoLock lock(mLock);
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if (mJarCacheTransport) {
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rv = mJarCacheTransport->Suspend();
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if (NS_FAILED(rv)) return rv;
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}
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if (mJarExtractionTransport) {
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rv = mJarExtractionTransport->Suspend();
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if (NS_FAILED(rv)) return rv;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::Resume()
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{
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nsresult rv;
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nsAutoLock lock(mLock);
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if (mJarCacheTransport) {
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rv = mJarCacheTransport->Resume();
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if (NS_FAILED(rv)) return rv;
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}
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if (mJarExtractionTransport) {
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rv = mJarExtractionTransport->Resume();
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if (NS_FAILED(rv)) return rv;
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}
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIChannel methods
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NS_IMETHODIMP
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nsJARChannel::GetOriginalURI(nsIURI* *aOriginalURI)
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{
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*aOriginalURI = mOriginalURI;
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NS_ADDREF(*aOriginalURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = mURI;
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NS_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::OpenInputStream(PRUint32 startPosition, PRInt32 readCount,
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nsIInputStream* *result)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARChannel::OpenOutputStream(PRUint32 startPosition, nsIOutputStream* *result)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARChannel::AsyncOpen(nsIStreamObserver* observer, nsISupports* ctxt)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARChannel::AsyncRead(PRUint32 startPosition, PRInt32 readCount,
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nsISupports* ctxt,
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nsIStreamListener* listener)
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{
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nsresult rv;
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rv = mURI->GetJARFile(getter_AddRefs(mJARBaseURI));
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if (NS_FAILED(rv)) return rv;
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rv = mURI->GetJAREntry(&mJAREntry);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIChannel> jarBaseChannel;
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rv = NS_OpenURI(getter_AddRefs(jarBaseChannel),
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mJARBaseURI, mLoadGroup, mCallbacks, mLoadAttributes);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIFileChannel> jarBaseFile = do_QueryInterface(jarBaseChannel, &rv);
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// XXX need to set a state variable here to say we're reading
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mStartPosition = startPosition;
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mReadCount = readCount;
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mUserContext = ctxt;
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mUserListener = listener;
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if (NS_SUCCEEDED(rv)) {
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// then we've already got a local jar file -- no need to download it
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rv = ExtractJARElement(jarBaseFile);
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}
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else {
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// otherwise, we need to download the jar file
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nsFileSpec jarCacheFile;
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rv = GetCacheFile(jarCacheFile);
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if (NS_FAILED(rv)) return rv;
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if (jarCacheFile.IsFile()) {
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// then we've already got the file in the local cache -- no need to download it
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NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIFileChannel> jarCacheChannel;
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rv = serv->NewChannelFromNativePath(jarCacheFile.GetNativePathCString(),
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mLoadGroup,
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mCallbacks,
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mLoadAttributes,
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nsnull,
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mBufferSegmentSize,
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mBufferMaxSize,
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getter_AddRefs(jarCacheChannel));
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if (NS_FAILED(rv)) return rv;
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rv = ExtractJARElement(jarCacheChannel);
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return rv;
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}
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NS_WITH_SERVICE(nsIFileTransportService, fts, kFileTransportServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsAutoLock lock(mLock);
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// use a file transport to serve as a data pump for the download (done
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// on some other thread)
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rv = fts->CreateTransport(jarCacheFile, mCommand,
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mBufferSegmentSize, mBufferMaxSize,
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getter_AddRefs(mJarCacheTransport));
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if (NS_FAILED(rv)) return rv;
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rv = mJarCacheTransport->SetNotificationCallbacks(mCallbacks);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIStreamObserver> downloadObserver = new nsJARDownloadObserver(jarCacheFile, this);
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if (downloadObserver == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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nsCOMPtr<nsIInputStream> jarBaseIn;
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rv = jarBaseChannel->OpenInputStream(0, -1, getter_AddRefs(jarBaseIn));
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if (NS_FAILED(rv)) return rv;
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rv = mJarCacheTransport->AsyncWrite(jarBaseIn, 0, -1, nsnull, downloadObserver);
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}
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return rv;
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}
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nsresult
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nsJARChannel::GetCacheFile(nsFileSpec& cacheFile)
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{
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// XXX change later to use the real network cache
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nsresult rv;
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nsSpecialSystemDirectory jarCacheFile(nsSpecialSystemDirectory::OS_CurrentProcessDirectory);
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jarCacheFile += "jarCache";
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if (!jarCacheFile.Exists())
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jarCacheFile.CreateDirectory();
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nsCOMPtr<nsIURL> jarBaseURL = do_QueryInterface(mJARBaseURI, &rv);
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if (NS_FAILED(rv)) return rv;
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char* jarFileName;
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rv = jarBaseURL->GetFileName(&jarFileName);
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if (NS_FAILED(rv)) return rv;
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jarCacheFile += jarFileName;
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nsCRT::free(jarFileName);
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cacheFile = jarCacheFile;
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return rv;
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}
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nsresult
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nsJARChannel::ExtractJARElement(nsIFileChannel* jarBaseFile)
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{
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nsresult rv;
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nsAutoLock lock(mLock);
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mJARBaseFile = jarBaseFile;
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NS_WITH_SERVICE(nsIFileTransportService, fts, kFileTransportServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = fts->CreateTransportFromFileSystem(this, mCommand,
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mBufferSegmentSize, mBufferMaxSize,
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getter_AddRefs(mJarExtractionTransport));
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if (NS_FAILED(rv)) return rv;
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rv = mJarExtractionTransport->SetNotificationCallbacks(mCallbacks);
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if (NS_FAILED(rv)) return rv;
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rv = mJarExtractionTransport->AsyncRead(mStartPosition, mReadCount, nsnull, this);
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return rv;
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}
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NS_IMETHODIMP
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nsJARChannel::AsyncWrite(nsIInputStream* fromStream, PRUint32 startPosition,
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PRInt32 writeCount,
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nsISupports* ctxt,
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nsIStreamObserver* observer)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARChannel::GetLoadAttributes(PRUint32* aLoadFlags)
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{
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*aLoadFlags = mLoadAttributes;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetLoadAttributes(PRUint32 aLoadFlags)
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{
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mLoadAttributes = aLoadFlags;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetContentType(char* *aContentType)
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{
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nsresult rv = NS_OK;
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if (mContentType == nsnull) {
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char* fileName = new char[PL_strlen(mJAREntry)+1];
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PL_strcpy(fileName, mJAREntry);
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//char* fileName = <get the relative part of the jar URL's file name>;
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if (fileName != nsnull) {
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PRInt32 len = nsCRT::strlen(fileName);
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const char* ext = nsnull;
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for (PRInt32 i = len; i >= 0; i--) {
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if (fileName[i] == '.') {
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ext = &fileName[i + 1];
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break;
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}
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}
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if (ext) {
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NS_WITH_SERVICE(nsIMIMEService, mimeServ, kMIMEServiceCID, &rv);
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if (NS_SUCCEEDED(rv)) {
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rv = mimeServ->GetTypeFromExtension(ext, &mContentType);
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}
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}
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else
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rv = NS_ERROR_FAILURE;
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nsCRT::free(fileName);
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}
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else {
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rv = NS_ERROR_FAILURE;
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}
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if (NS_FAILED(rv)) {
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mContentType = nsCRT::strdup(UNKNOWN_MIME);
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if (mContentType == nsnull)
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rv = NS_ERROR_OUT_OF_MEMORY;
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else
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rv = NS_OK;
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}
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}
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if (NS_SUCCEEDED(rv)) {
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*aContentType = nsCRT::strdup(mContentType);
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if (*aContentType == nsnull)
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rv = NS_ERROR_OUT_OF_MEMORY;
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}
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return rv;
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}
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NS_IMETHODIMP
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nsJARChannel::SetContentType(const char *aContentType)
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{
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if (mContentType) {
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nsCRT::free(mContentType);
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}
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mContentType = nsCRT::strdup(aContentType);
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if (!mContentType) return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetContentLength(PRInt32* aContentLength)
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{
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if (mContentLength == -1)
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return NS_ERROR_FAILURE;
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*aContentLength = mContentLength;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
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{
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*aLoadGroup = mLoadGroup;
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NS_IF_ADDREF(*aLoadGroup);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
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{
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mLoadGroup = aLoadGroup;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetOwner(nsISupports* *aOwner)
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{
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*aOwner = mOwner.get();
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NS_IF_ADDREF(*aOwner);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetOwner(nsISupports* aOwner)
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{
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mOwner = aOwner;
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return NS_OK;
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}
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NS_IMETHODIMP
|
|
nsJARChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
|
|
{
|
|
*aNotificationCallbacks = mCallbacks.get();
|
|
NS_IF_ADDREF(*aNotificationCallbacks);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
|
|
{
|
|
mCallbacks = aNotificationCallbacks;
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsIStreamObserver methods:
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnStartRequest(nsIChannel* jarExtractionTransport,
|
|
nsISupports* context)
|
|
{
|
|
return mUserListener->OnStartRequest(this, mUserContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnStopRequest(nsIChannel* jarExtractionTransport,
|
|
nsISupports* context,
|
|
nsresult status,
|
|
const PRUnichar* aMsg)
|
|
{
|
|
nsresult rv;
|
|
rv = mUserListener->OnStopRequest(this, mUserContext, status, aMsg);
|
|
mJarExtractionTransport = nsnull;
|
|
return rv;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsIStreamListener methods:
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnDataAvailable(nsIChannel* jarCacheTransport,
|
|
nsISupports* context,
|
|
nsIInputStream *inStr,
|
|
PRUint32 sourceOffset,
|
|
PRUint32 count)
|
|
{
|
|
return mUserListener->OnDataAvailable(this, mUserContext,
|
|
inStr, sourceOffset, count);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsIFileSystem methods:
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::Open(char* *contentType, PRInt32 *contentLength)
|
|
{
|
|
nsresult rv;
|
|
rv = nsComponentManager::CreateInstance(kZipReaderCID,
|
|
nsnull,
|
|
NS_GET_IID(nsIZipReader),
|
|
getter_AddRefs(mJAR));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsFileSpec fs;
|
|
rv = mJARBaseFile->GetFileSpec(&fs);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = mJAR->Init(fs);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = mJAR->Open();
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIZipEntry> entry;
|
|
rv = mJAR->GetEntry(mJAREntry, getter_AddRefs(entry));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = entry->GetRealSize((PRUint32*)contentLength);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return GetContentType(contentType);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::Close(nsresult status)
|
|
{
|
|
mJAR = null_nsCOMPtr();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::GetInputStream(nsIInputStream* *aInputStream)
|
|
{
|
|
return mJAR->GetInputStream(mJAREntry, aInputStream);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::GetOutputStream(nsIOutputStream* *aOutputStream)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsIJARChannel methods:
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::EnumerateEntries(const char *aRoot, nsISimpleEnumerator **_retval)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|