зеркало из https://github.com/mozilla/pjs.git
689 строки
17 KiB
C++
689 строки
17 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) 1998,2000 Netscape Communications Corporation. All Rights
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* Reserved.
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*
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*/
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#include "nsJARChannel.h"
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#include "nsJARProtocolHandler.h"
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#include "nsMimeTypes.h"
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#include "nsNetUtil.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIPrincipal.h"
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#include "nsIFileURL.h"
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#include "nsIJAR.h"
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static NS_DEFINE_CID(kZipReaderCID, NS_ZIPREADER_CID);
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//-----------------------------------------------------------------------------
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#if defined(PR_LOGGING)
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//
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// set NSPR_LOG_MODULES=nsJarProtocol:5
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//
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static PRLogModuleInfo *gJarProtocolLog = nsnull;
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#endif
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#define LOG(args) PR_LOG(gJarProtocolLog, PR_LOG_DEBUG, args)
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#define LOG_ENABLED() PR_LOG_TEST(gJarProtocolLog, 4)
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//-----------------------------------------------------------------------------
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// nsJARInputThunk
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//
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// this class allows us to do some extra work on the stream transport thread.
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//-----------------------------------------------------------------------------
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class nsJARInputThunk : public nsIInputStream
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINPUTSTREAM
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nsJARInputThunk(nsIFile *jarFile, const nsACString &jarEntry,
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nsIZipReaderCache *jarCache)
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: mJarCache(jarCache)
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, mJarFile(jarFile)
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, mJarEntry(jarEntry)
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, mContentLength(-1)
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{
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NS_ASSERTION(mJarFile, "no jar file");
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}
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virtual ~nsJARInputThunk()
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{
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if (!mJarCache && mJarReader)
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mJarReader->Close();
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}
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void GetJarReader(nsIZipReader **result)
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{
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NS_IF_ADDREF(*result = mJarReader);
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}
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PRInt32 GetContentLength()
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{
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return mContentLength;
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}
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nsresult EnsureJarStream();
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private:
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nsCOMPtr<nsIZipReaderCache> mJarCache;
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nsCOMPtr<nsIZipReader> mJarReader;
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nsCOMPtr<nsIFile> mJarFile;
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nsCOMPtr<nsIInputStream> mJarStream;
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nsCString mJarEntry;
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PRInt32 mContentLength;
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};
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NS_IMPL_THREADSAFE_ISUPPORTS1(nsJARInputThunk, nsIInputStream)
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nsresult
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nsJARInputThunk::EnsureJarStream()
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{
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if (mJarStream)
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return NS_OK;
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nsresult rv;
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if (mJarCache)
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rv = mJarCache->GetZip(mJarFile, getter_AddRefs(mJarReader));
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else {
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// create an uncached jar reader
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mJarReader = do_CreateInstance(kZipReaderCID, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = mJarReader->Init(mJarFile);
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if (NS_FAILED(rv)) return rv;
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rv = mJarReader->Open();
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}
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if (NS_FAILED(rv)) return rv;
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rv = mJarReader->GetInputStream(mJarEntry.get(),
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getter_AddRefs(mJarStream));
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if (NS_FAILED(rv)) return rv;
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// ask the JarStream for the content length
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mJarStream->Available((PRUint32 *) &mContentLength);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARInputThunk::Close()
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{
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if (mJarStream)
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return mJarStream->Close();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARInputThunk::Available(PRUint32 *avail)
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{
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nsresult rv = EnsureJarStream();
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if (NS_FAILED(rv)) return rv;
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return mJarStream->Available(avail);
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}
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NS_IMETHODIMP
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nsJARInputThunk::Read(char *buf, PRUint32 count, PRUint32 *countRead)
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{
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nsresult rv = EnsureJarStream();
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if (NS_FAILED(rv)) return rv;
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return mJarStream->Read(buf, count, countRead);
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}
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NS_IMETHODIMP
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nsJARInputThunk::ReadSegments(nsWriteSegmentFun writer, void *closure,
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PRUint32 count, PRUint32 *countRead)
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{
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// stream transport does only calls Read()
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NS_NOTREACHED("nsJarInputThunk::ReadSegments");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsJARInputThunk::IsNonBlocking(PRBool *nonBlocking)
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{
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*nonBlocking = PR_FALSE;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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nsJARChannel::nsJARChannel()
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: mContentLength(-1)
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, mLoadFlags(LOAD_NORMAL)
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, mStatus(NS_OK)
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, mIsPending(PR_FALSE)
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, mJarInput(nsnull)
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{
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#if defined(PR_LOGGING)
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if (!gJarProtocolLog)
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gJarProtocolLog = PR_NewLogModule("nsJarProtocol");
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#endif
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// hold an owning reference to the jar handler
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NS_ADDREF(gJarHandler);
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}
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nsJARChannel::~nsJARChannel()
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{
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// with the exception of certain error cases mJarInput will already be null.
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NS_IF_RELEASE(mJarInput);
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// release owning reference to the jar handler
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nsJARProtocolHandler *handler = gJarHandler;
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NS_RELEASE(handler); // NULL parameter
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}
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NS_IMPL_ISUPPORTS6(nsJARChannel,
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nsIRequest,
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nsIChannel,
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nsIStreamListener,
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nsIRequestObserver,
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nsIDownloadObserver,
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nsIJARChannel)
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nsresult
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nsJARChannel::Init(nsIURI *uri)
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{
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nsresult rv;
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mJarURI = do_QueryInterface(uri, &rv);
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#if defined(PR_LOGGING)
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mJarURI->GetSpec(mSpec);
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#endif
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return rv;
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}
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nsresult
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nsJARChannel::CreateJarInput(nsIZipReaderCache *jarCache)
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{
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// important to pass a clone of the file since the nsIFile impl is not
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// necessarily MT-safe
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nsCOMPtr<nsIFile> clonedFile;
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nsresult rv = mJarFile->Clone(getter_AddRefs(clonedFile));
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if (NS_FAILED(rv)) return rv;
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mJarInput = new nsJARInputThunk(clonedFile, mJarEntry, jarCache);
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if (!mJarInput)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mJarInput);
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return NS_OK;
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}
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nsresult
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nsJARChannel::EnsureJarInput(PRBool blocking)
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{
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LOG(("nsJARChannel::EnsureJarInput [this=%x %s]\n", this, mSpec.get()));
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nsresult rv;
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nsCOMPtr<nsIURI> uri;
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rv = mJarURI->GetJARFile(getter_AddRefs(mJarBaseURI));
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if (NS_FAILED(rv)) return rv;
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rv = mJarURI->GetJAREntry(mJarEntry);
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if (NS_FAILED(rv)) return rv;
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// try to get a nsIFile directly from the url, which will often succeed.
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{
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nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mJarBaseURI);
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if (fileURL)
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fileURL->GetFile(getter_AddRefs(mJarFile));
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}
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if (mJarFile) {
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rv = CreateJarInput(gJarHandler->JarCache());
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}
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else if (blocking) {
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NS_NOTREACHED("need sync downloader");
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rv = NS_ERROR_NOT_IMPLEMENTED;
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}
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else {
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// kick off an async download of the base URI...
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rv = NS_NewDownloader(getter_AddRefs(mDownloader), this);
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if (NS_SUCCEEDED(rv))
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rv = NS_OpenURI(mDownloader, nsnull, mJarBaseURI, nsnull,
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mLoadGroup, mCallbacks,
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mLoadFlags & ~LOAD_DOCUMENT_URI);
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}
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return rv;
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}
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//-----------------------------------------------------------------------------
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// nsIRequest
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsJARChannel::GetName(nsACString &result)
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{
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return mJarURI->GetSpec(result);
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}
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NS_IMETHODIMP
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nsJARChannel::IsPending(PRBool *result)
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{
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*result = mIsPending;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetStatus(nsresult *status)
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{
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if (mPump && NS_SUCCEEDED(mStatus))
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mPump->GetStatus(status);
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else
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*status = mStatus;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::Cancel(nsresult status)
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{
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mStatus = status;
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if (mPump)
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return mPump->Cancel(status);
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NS_ASSERTION(!mIsPending, "need to implement cancel when downloading");
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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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if (mPump)
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return mPump->Suspend();
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NS_ASSERTION(!mIsPending, "need to implement suspend when downloading");
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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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if (mPump)
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return mPump->Resume();
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NS_ASSERTION(!mIsPending, "need to implement resume when downloading");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetLoadFlags(nsLoadFlags *aLoadFlags)
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{
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*aLoadFlags = mLoadFlags;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetLoadFlags(nsLoadFlags aLoadFlags)
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{
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mLoadFlags = aLoadFlags;
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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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NS_IF_ADDREF(*aLoadGroup = mLoadGroup);
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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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//-----------------------------------------------------------------------------
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// nsIChannel
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsJARChannel::GetOriginalURI(nsIURI **aURI)
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{
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if (mOriginalURI)
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*aURI = mOriginalURI;
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else
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*aURI = mJarURI;
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NS_IF_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetOriginalURI(nsIURI *aURI)
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{
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mOriginalURI = aURI;
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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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NS_IF_ADDREF(*aURI = mJarURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetOwner(nsISupports **result)
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{
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nsresult rv;
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if (mOwner) {
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NS_ADDREF(*result = mOwner);
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return NS_OK;
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}
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if (!mJarInput) {
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*result = nsnull;
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return NS_OK;
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}
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//-- Verify signature, if one is present, and set owner accordingly
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nsCOMPtr<nsIZipReader> jarReader;
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mJarInput->GetJarReader(getter_AddRefs(jarReader));
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if (!jarReader)
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return NS_ERROR_NOT_INITIALIZED;
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nsCOMPtr<nsIJAR> jar = do_QueryInterface(jarReader, &rv);
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if (NS_FAILED(rv)) {
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NS_ERROR("nsIJAR not supported");
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return rv;
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}
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nsCOMPtr<nsIPrincipal> cert;
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rv = jar->GetCertificatePrincipal(mJarEntry.get(), getter_AddRefs(cert));
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if (NS_FAILED(rv)) return rv;
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if (cert) {
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nsXPIDLCString certID;
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rv = cert->GetCertificateID(getter_Copies(certID));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIScriptSecurityManager> secMan =
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do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = secMan->GetCertificatePrincipal(certID, mJarBaseURI,
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getter_AddRefs(cert));
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if (NS_FAILED(rv)) return rv;
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mOwner = do_QueryInterface(cert, &rv);
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if (NS_FAILED(rv)) return rv;
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NS_ADDREF(*result = mOwner);
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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::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
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nsJARChannel::GetNotificationCallbacks(nsIInterfaceRequestor **aCallbacks)
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{
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NS_IF_ADDREF(*aCallbacks = mCallbacks);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetNotificationCallbacks(nsIInterfaceRequestor *aCallbacks)
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{
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mCallbacks = aCallbacks;
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mProgressSink = do_GetInterface(mCallbacks);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetSecurityInfo(nsISupports **aSecurityInfo)
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{
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*aSecurityInfo = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetContentType(nsACString &result)
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{
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if (mContentType.IsEmpty()) {
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//
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// generate content type and set it
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//
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if (mJarEntry.IsEmpty()) {
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LOG(("mJarEntry is empty!\n"));
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return NS_ERROR_NOT_AVAILABLE;
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}
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const char *ext = nsnull, *fileName = mJarEntry.get();
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PRInt32 len = mJarEntry.Length();
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for (PRInt32 i = len-1; 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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nsIMIMEService *mimeServ = gJarHandler->MimeService();
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if (mimeServ) {
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nsXPIDLCString mimeType;
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nsresult rv = mimeServ->GetTypeFromExtension(ext, getter_Copies(mimeType));
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if (NS_SUCCEEDED(rv))
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mContentType = mimeType;
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}
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}
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if (mContentType.IsEmpty())
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mContentType = NS_LITERAL_CSTRING(UNKNOWN_CONTENT_TYPE);
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}
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result = mContentType;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetContentType(const nsACString &aContentType)
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{
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// If someone gives us a type hint we should just use that type instead of
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// doing our guessing. So we don't care when this is being called.
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// mContentCharset is unchanged if not parsed
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NS_ParseContentType(aContentType, mContentType, mContentCharset);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetContentCharset(nsACString &aContentCharset)
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{
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// If someone gives us a charset hint we should just use that charset.
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// So we don't care when this is being called.
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aContentCharset = mContentCharset;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetContentCharset(const nsACString &aContentCharset)
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{
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mContentCharset = aContentCharset;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::GetContentLength(PRInt32 *result)
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{
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// if content length is unknown, query mJarInput...
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if (mContentLength < 0 && mJarInput)
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mContentLength = mJarInput->GetContentLength();
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*result = mContentLength;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::SetContentLength(PRInt32 aContentLength)
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{
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// XXX does this really make any sense at all?
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mContentLength = aContentLength;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsJARChannel::Open(nsIInputStream **stream)
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{
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LOG(("nsJARChannel::Open [this=%x]\n", this));
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NS_ENSURE_TRUE(!mJarInput, NS_ERROR_IN_PROGRESS);
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NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
|
|
|
|
nsresult rv = EnsureJarInput(PR_TRUE);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
if (!mJarInput)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
// force load the jar file now so GetContentLength will return a
|
|
// meaningful value once we return.
|
|
mJarInput->EnsureJarStream();
|
|
|
|
NS_ADDREF(*stream = mJarInput);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctx)
|
|
{
|
|
LOG(("nsJARChannel::AsyncOpen [this=%x]\n", this));
|
|
|
|
NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
|
|
|
|
nsresult rv = EnsureJarInput(PR_FALSE);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
if (mJarInput) {
|
|
// create input stream pump
|
|
rv = NS_NewInputStreamPump(getter_AddRefs(mPump), mJarInput);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = mPump->AsyncRead(this, nsnull);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
if (mLoadGroup)
|
|
mLoadGroup->AddRequest(this, nsnull);
|
|
|
|
mListener = listener;
|
|
mListenerContext = ctx;
|
|
mIsPending = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsIDownloadObserver
|
|
//-----------------------------------------------------------------------------
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnDownloadComplete(nsIDownloader *downloader,
|
|
nsresult status,
|
|
nsIFile *file)
|
|
{
|
|
if (NS_SUCCEEDED(status)) {
|
|
mJarFile = file;
|
|
|
|
nsresult rv = CreateJarInput(nsnull);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// create input stream pump
|
|
rv = NS_NewInputStreamPump(getter_AddRefs(mPump), mJarInput);
|
|
if (NS_SUCCEEDED(rv))
|
|
rv = mPump->AsyncRead(this, nsnull);
|
|
}
|
|
status = rv;
|
|
}
|
|
|
|
if (NS_FAILED(status)) {
|
|
OnStartRequest(nsnull, nsnull);
|
|
OnStopRequest(nsnull, nsnull, status);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsIStreamListener
|
|
//-----------------------------------------------------------------------------
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnStartRequest(nsIRequest *req, nsISupports *ctx)
|
|
{
|
|
LOG(("nsJARChannel::OnStartRequest [this=%x %s]\n", this, mSpec.get()));
|
|
|
|
return mListener->OnStartRequest(this, mListenerContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
|
|
{
|
|
LOG(("nsJARChannel::OnStopRequest [this=%x %s status=%x]\n",
|
|
this, mSpec.get(), status));
|
|
|
|
if (NS_SUCCEEDED(mStatus))
|
|
mStatus = status;
|
|
|
|
if (mListener) {
|
|
mListener->OnStopRequest(this, mListenerContext, status);
|
|
mListener = 0;
|
|
mListenerContext = 0;
|
|
}
|
|
|
|
if (mLoadGroup)
|
|
mLoadGroup->RemoveRequest(this, nsnull, status);
|
|
|
|
mPump = 0;
|
|
NS_IF_RELEASE(mJarInput);
|
|
mIsPending = PR_FALSE;
|
|
mDownloader = 0; // this may delete the underlying jar file
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsJARChannel::OnDataAvailable(nsIRequest *req, nsISupports *ctx,
|
|
nsIInputStream *stream,
|
|
PRUint32 offset, PRUint32 count)
|
|
{
|
|
#if defined(PR_LOGGING)
|
|
LOG(("nsJARChannel::OnDataAvailable [this=%x %s]\n", this, mSpec.get()));
|
|
#endif
|
|
|
|
nsresult rv;
|
|
|
|
rv = mListener->OnDataAvailable(this, mListenerContext, stream, offset, count);
|
|
|
|
// simply report progress here instead of hooking ourselves up as a
|
|
// nsITransportEventSink implementation.
|
|
if (mProgressSink && NS_SUCCEEDED(rv) && !(mLoadFlags & LOAD_BACKGROUND))
|
|
mProgressSink->OnProgress(this, nsnull, offset + count, mContentLength);
|
|
|
|
return rv; // let the pump cancel on failure
|
|
}
|