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pjs/netwerk/base/public/nsNetUtil.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsNetUtil_h__
#define nsNetUtil_h__
#include "nsIURI.h"
#include "netCore.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsIStreamListener.h"
#include "nsIStreamProvider.h"
#include "nsIRequestObserverProxy.h"
#include "nsILoadGroup.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsIIOService.h"
#include "nsIServiceManager.h"
#include "nsIChannel.h"
#include "nsIStreamIOChannel.h"
#include "nsITransport.h"
#include "nsMemory.h"
#include "nsCOMPtr.h"
#include "nsIDownloader.h"
#include "nsIStreamLoader.h"
#include "nsIStreamIO.h"
#include "nsIPipe.h"
#include "nsIProtocolHandler.h"
#include "nsIStringStream.h"
#include "nsILocalFile.h"
#include "nsIFileStreams.h"
#include "nsXPIDLString.h"
#include "nsIProtocolProxyService.h"
#include "prio.h" // for read/write flags, permissions, etc.
#include "nsNetCID.h"
// Helper, to simplify getting the I/O service.
inline const nsGetServiceByCID
do_GetIOService(nsresult* error = 0)
{
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
return nsGetServiceByCID(kIOServiceCID, 0, error);
}
inline nsresult
NS_NewURI(nsIURI* *result,
const char* spec,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
return ioService->NewURI(spec, baseURI, result);
}
inline nsresult
NS_NewURI(nsIURI* *result,
const nsAReadableString& spec,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
NS_ConvertUCS2toUTF8 specStr(spec); // this forces a single byte char*
if (!spec.IsEmpty() && specStr.IsEmpty())
return NS_ERROR_OUT_OF_MEMORY;
return NS_NewURI(result, specStr.get(), baseURI, ioService);
}
inline nsresult
NS_NewFileURI(nsIURI* *result,
nsIFile* spec,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
return ioService->NewFileURI(spec, result);
}
inline nsresult
NS_OpenURI(nsIChannel* *result,
nsIURI* uri,
nsIIOService* ioService = nsnull, // pass in nsIIOService to optimize callers
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = NS_STATIC_CAST(nsLoadFlags, nsIRequest::LOAD_NORMAL))
{
nsresult rv;
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
nsIChannel* channel = nsnull;
rv = ioService->NewChannelFromURI(uri, &channel);
if (NS_FAILED(rv)) return rv;
if (loadGroup) {
rv = channel->SetLoadGroup(loadGroup);
if (NS_FAILED(rv)) return rv;
}
if (notificationCallbacks) {
rv = channel->SetNotificationCallbacks(notificationCallbacks);
if (NS_FAILED(rv)) return rv;
}
if (loadAttributes != nsIRequest::LOAD_NORMAL) {
rv = channel->SetLoadFlags(loadAttributes);
if (NS_FAILED(rv)) return rv;
}
*result = channel;
return rv;
}
// Use this function with CAUTION. And do not use it on
// the UI thread. It creates a stream that blocks when
// you Read() from it and blocking the UI thread is
// illegal. If you don't want to implement a full
// blown asyncrhonous consumer (via nsIStreamListener)
// look at nsIStreamLoader instead.
inline nsresult
NS_OpenURI(nsIInputStream* *result,
nsIURI* uri,
nsIIOService* ioService = nsnull, // pass in nsIIOService to optimize callers
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = NS_STATIC_CAST(nsLoadFlags, nsIRequest::LOAD_NORMAL))
{
nsresult rv;
nsCOMPtr<nsIChannel> channel;
rv = NS_OpenURI(getter_AddRefs(channel), uri, ioService,
loadGroup, notificationCallbacks, loadAttributes);
if (NS_FAILED(rv)) return rv;
nsIInputStream* inStr;
rv = channel->Open(&inStr);
if (NS_FAILED(rv)) return rv;
*result = inStr;
return rv;
}
inline nsresult
NS_OpenURI(nsIStreamListener* aConsumer,
nsISupports* context,
nsIURI* uri,
nsIIOService* ioService = nsnull, // pass in nsIIOService to optimize callers
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = NS_STATIC_CAST(nsLoadFlags, nsIRequest::LOAD_NORMAL))
{
nsresult rv;
nsCOMPtr<nsIChannel> channel;
rv = NS_OpenURI(getter_AddRefs(channel), uri, ioService,
loadGroup, notificationCallbacks, loadAttributes);
if (NS_FAILED(rv)) return rv;
rv = channel->AsyncOpen(aConsumer, context);
return rv;
}
inline nsresult
NS_MakeAbsoluteURI(char* *result,
const char* spec,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
NS_ASSERTION(baseURI, "It doesn't make sense to not supply a base URI");
if (spec == nsnull)
return baseURI->GetSpec(result);
return baseURI->Resolve(spec, result);
}
inline nsresult
NS_MakeAbsoluteURI(nsAWritableString& result,
const nsAReadableString& spec,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
char* resultStr;
char* specStr = ToNewUTF8String(spec);
if (!specStr) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv = NS_MakeAbsoluteURI(&resultStr, specStr, baseURI, ioService);
nsMemory::Free(specStr);
if (NS_FAILED(rv)) return rv;
result.Assign(NS_ConvertUTF8toUCS2(resultStr));
nsMemory::Free(resultStr);
return rv;
}
inline nsresult
NS_NewPostDataStream(nsIInputStream **result,
PRBool isFile,
const char *data,
PRUint32 encodeFlags,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
nsresult rv;
if (isFile) {
nsCOMPtr<nsILocalFile> file;
nsCOMPtr<nsIInputStream> fileStream;
rv = NS_NewLocalFile(data, PR_FALSE, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = NS_NewLocalFileInputStream(getter_AddRefs(fileStream), file);
if (NS_FAILED(rv)) return rv;
// wrap the file stream with a buffered input stream
return NS_NewBufferedInputStream(result, fileStream, 8192);
}
// otherwise, create a string stream for the data
return NS_NewCStringInputStream(result, nsDependentCString(data));
}
inline nsresult
NS_NewStreamIOChannel(nsIStreamIOChannel **result,
nsIURI* uri,
nsIStreamIO* io)
{
nsresult rv;
nsCOMPtr<nsIStreamIOChannel> channel;
static NS_DEFINE_CID(kStreamIOChannelCID, NS_STREAMIOCHANNEL_CID);
rv = nsComponentManager::CreateInstance(kStreamIOChannelCID,
nsnull,
NS_GET_IID(nsIStreamIOChannel),
getter_AddRefs(channel));
if (NS_FAILED(rv)) return rv;
rv = channel->Init(uri, io);
if (NS_FAILED(rv)) return rv;
*result = channel;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewInputStreamChannel(nsIChannel **result,
nsIURI* uri,
nsIInputStream* inStr,
const char* contentType,
PRInt32 contentLength)
{
nsresult rv;
nsXPIDLCString spec;
rv = uri->GetSpec(getter_Copies(spec));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIInputStreamIO> io;
rv = NS_NewInputStreamIO(getter_AddRefs(io), spec, inStr,
contentType, contentLength);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIStreamIOChannel> channel;
rv = NS_NewStreamIOChannel(getter_AddRefs(channel), uri, io);
if (NS_FAILED(rv)) return rv;
*result = channel;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewLoadGroup(nsILoadGroup* *result, nsIRequestObserver* obs)
{
nsresult rv;
nsCOMPtr<nsILoadGroup> group;
static NS_DEFINE_CID(kLoadGroupCID, NS_LOADGROUP_CID);
rv = nsComponentManager::CreateInstance(kLoadGroupCID, nsnull,
NS_GET_IID(nsILoadGroup),
getter_AddRefs(group));
if (NS_FAILED(rv)) return rv;
rv = group->SetGroupObserver(obs);
if (NS_FAILED(rv)) return rv;
*result = group;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewDownloader(nsIDownloader* *result,
nsIURI* uri,
nsIDownloadObserver* observer,
nsISupports* context = nsnull,
PRBool synchronous = PR_FALSE,
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = NS_STATIC_CAST(nsLoadFlags, nsIRequest::LOAD_NORMAL))
{
nsresult rv;
nsCOMPtr<nsIDownloader> downloader;
static NS_DEFINE_CID(kDownloaderCID, NS_DOWNLOADER_CID);
rv = nsComponentManager::CreateInstance(kDownloaderCID,
nsnull,
NS_GET_IID(nsIDownloader),
getter_AddRefs(downloader));
if (NS_FAILED(rv)) return rv;
rv = downloader->Init(uri, observer, context, synchronous, loadGroup,
notificationCallbacks, loadAttributes);
if (NS_FAILED(rv)) return rv;
*result = downloader;
NS_ADDREF(*result);
return rv;
}
inline nsresult
NS_NewStreamLoader(nsIStreamLoader* *result,
nsIURI* uri,
nsIStreamLoaderObserver* observer,
nsISupports* context = nsnull,
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = NS_STATIC_CAST(nsLoadFlags, nsIRequest::LOAD_NORMAL),
nsIURI* referrer = nsnull,
PRUint32 referrerFlags = 0)
{
nsresult rv;
nsCOMPtr<nsIStreamLoader> loader;
static NS_DEFINE_CID(kStreamLoaderCID, NS_STREAMLOADER_CID);
rv = nsComponentManager::CreateInstance(kStreamLoaderCID,
nsnull,
NS_GET_IID(nsIStreamLoader),
getter_AddRefs(loader));
if (NS_FAILED(rv)) return rv;
rv = loader->Init(uri, observer, context, loadGroup,
notificationCallbacks, loadAttributes, referrer,
referrerFlags);
if (NS_FAILED(rv)) return rv;
*result = loader;
NS_ADDREF(*result);
return rv;
}
inline nsresult
NS_NewRequestObserverProxy(nsIRequestObserver **aResult,
nsIRequestObserver *aObserver,
nsIEventQueue *aEventQ=nsnull)
{
NS_ENSURE_ARG_POINTER(aResult);
nsresult rv;
nsCOMPtr<nsIRequestObserverProxy> proxy;
static NS_DEFINE_CID(kRequestObserverProxyCID, NS_REQUESTOBSERVERPROXY_CID);
rv = nsComponentManager::CreateInstance(kRequestObserverProxyCID,
nsnull,
NS_GET_IID(nsIRequestObserverProxy),
getter_AddRefs(proxy));
if (NS_FAILED(rv)) return rv;
rv = proxy->Init(aObserver, aEventQ);
if (NS_FAILED(rv)) return rv;
return CallQueryInterface(proxy, aResult);
}
inline nsresult
NS_NewStreamListenerProxy(nsIStreamListener **aResult,
nsIStreamListener *aListener,
nsIEventQueue *aEventQ=nsnull,
PRUint32 aBufferSegmentSize=0,
PRUint32 aBufferMaxSize=0)
{
NS_ENSURE_ARG_POINTER(aResult);
nsresult rv;
nsCOMPtr<nsIStreamListenerProxy> proxy;
static NS_DEFINE_CID(kStreamListenerProxyCID, NS_STREAMLISTENERPROXY_CID);
rv = nsComponentManager::CreateInstance(kStreamListenerProxyCID,
nsnull,
NS_GET_IID(nsIStreamListenerProxy),
getter_AddRefs(proxy));
if (NS_FAILED(rv)) return rv;
rv = proxy->Init(aListener, aEventQ, aBufferSegmentSize, aBufferMaxSize);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*aResult = proxy);
return NS_OK;
}
inline nsresult
NS_NewStreamProviderProxy(nsIStreamProvider **aResult,
nsIStreamProvider *aProvider,
nsIEventQueue *aEventQ=nsnull,
PRUint32 aBufferSegmentSize=0,
PRUint32 aBufferMaxSize=0)
{
NS_ENSURE_ARG_POINTER(aResult);
nsresult rv;
nsCOMPtr<nsIStreamProviderProxy> proxy;
static NS_DEFINE_CID(kStreamProviderProxyCID, NS_STREAMPROVIDERPROXY_CID);
rv = nsComponentManager::CreateInstance(kStreamProviderProxyCID,
nsnull,
NS_GET_IID(nsIStreamProviderProxy),
getter_AddRefs(proxy));
if (NS_FAILED(rv)) return rv;
rv = proxy->Init(aProvider, aEventQ, aBufferSegmentSize, aBufferMaxSize);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*aResult = proxy);
return NS_OK;
}
inline nsresult
NS_NewSimpleStreamListener(nsIStreamListener **aResult,
nsIOutputStream *aSink,
nsIRequestObserver *aObserver=nsnull)
{
NS_ENSURE_ARG_POINTER(aResult);
nsresult rv;
nsCOMPtr<nsISimpleStreamListener> listener;
static NS_DEFINE_CID(kSimpleStreamListenerCID, NS_SIMPLESTREAMLISTENER_CID);
rv = nsComponentManager::CreateInstance(kSimpleStreamListenerCID,
nsnull,
NS_GET_IID(nsISimpleStreamListener),
getter_AddRefs(listener));
if (NS_FAILED(rv)) return rv;
rv = listener->Init(aSink, aObserver);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*aResult = listener);
return NS_OK;
}
inline nsresult
NS_NewSimpleStreamProvider(nsIStreamProvider **aResult,
nsIInputStream *aSource,
nsIRequestObserver *aObserver=nsnull)
{
NS_ENSURE_ARG_POINTER(aResult);
nsresult rv;
nsCOMPtr<nsISimpleStreamProvider> provider;
static NS_DEFINE_CID(kSimpleStreamProviderCID, NS_SIMPLESTREAMPROVIDER_CID);
rv = nsComponentManager::CreateInstance(kSimpleStreamProviderCID,
nsnull,
NS_GET_IID(nsISimpleStreamProvider),
getter_AddRefs(provider));
if (NS_FAILED(rv)) return rv;
rv = provider->Init(aSource, aObserver);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*aResult = provider);
return NS_OK;
}
/*
// Depracated, prefer NS_NewStreamObserverProxy
inline nsresult
NS_NewAsyncStreamObserver(nsIRequestObserver **result,
nsIRequestObserver *receiver,
nsIEventQueue *eventQueue)
{
nsresult rv;
nsCOMPtr<nsIAsyncStreamObserver> obs;
static NS_DEFINE_CID(kAsyncStreamObserverCID, NS_ASYNCSTREAMOBSERVER_CID);
rv = nsComponentManager::CreateInstance(kAsyncStreamObserverCID,
nsnull,
NS_GET_IID(nsIAsyncStreamObserver),
getter_AddRefs(obs));
if (NS_FAILED(rv)) return rv;
rv = obs->Init(receiver, eventQueue);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*result = obs);
return NS_OK;
}
*/
// Depracated, prefer NS_NewStreamListenerProxy
inline nsresult
NS_NewAsyncStreamListener(nsIStreamListener **result,
nsIStreamListener *receiver,
nsIEventQueue *eventQueue)
{
nsresult rv;
nsCOMPtr<nsIAsyncStreamListener> lsnr;
static NS_DEFINE_CID(kAsyncStreamListenerCID, NS_ASYNCSTREAMLISTENER_CID);
rv = nsComponentManager::CreateInstance(kAsyncStreamListenerCID,
nsnull,
NS_GET_IID(nsIAsyncStreamListener),
getter_AddRefs(lsnr));
if (NS_FAILED(rv)) return rv;
rv = lsnr->Init(receiver, eventQueue);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*result = lsnr);
return NS_OK;
}
// Depracated, prefer a true synchonous implementation
inline nsresult
NS_NewSyncStreamListener(nsIInputStream **aInStream,
nsIOutputStream **aOutStream,
nsIStreamListener **aResult)
{
nsresult rv;
NS_ENSURE_ARG_POINTER(aInStream);
NS_ENSURE_ARG_POINTER(aOutStream);
nsCOMPtr<nsIInputStream> pipeIn;
nsCOMPtr<nsIOutputStream> pipeOut;
rv = NS_NewPipe(getter_AddRefs(pipeIn),
getter_AddRefs(pipeOut),
4*1024, // NS_SYNC_STREAM_LISTENER_SEGMENT_SIZE
32*1024); // NS_SYNC_STREAM_LISTENER_BUFFER_SIZE
if (NS_FAILED(rv)) return rv;
rv = NS_NewSimpleStreamListener(aResult, pipeOut);
if (NS_FAILED(rv)) return rv;
NS_ADDREF(*aInStream = pipeIn);
NS_ADDREF(*aOutStream = pipeOut);
return NS_OK;
}
//
// Calls AsyncWrite on the specified transport, with a stream provider that
// reads data from the specified input stream.
//
inline nsresult
NS_AsyncWriteFromStream(nsIRequest **aRequest,
nsITransport *aTransport,
nsIInputStream *aSource,
PRUint32 aOffset=0,
PRUint32 aCount=0,
PRUint32 aFlags=0,
nsIRequestObserver *aObserver=NULL,
nsISupports *aContext=NULL)
{
NS_ENSURE_ARG_POINTER(aTransport);
nsresult rv;
nsCOMPtr<nsIStreamProvider> provider;
rv = NS_NewSimpleStreamProvider(getter_AddRefs(provider),
aSource,
aObserver);
if (NS_FAILED(rv)) return rv;
//
// We can safely allow the transport impl to bypass proxying the provider
// since we are using a simple stream provider.
//
// A simple stream provider masks the OnDataWritable from consumers.
// Moreover, it makes an assumption about the underlying nsIInputStream
// implementation: namely, that it is thread-safe and blocking.
//
// So, let's always make this optimization.
//
aFlags |= nsITransport::DONT_PROXY_PROVIDER;
return aTransport->AsyncWrite(provider, aContext,
aOffset,
aCount,
aFlags,
aRequest);
}
//
// Calls AsyncRead on the specified transport, with a stream listener that
// writes data to the specified output stream.
//
inline nsresult
NS_AsyncReadToStream(nsIRequest **aRequest,
nsITransport *aTransport,
nsIOutputStream *aSink,
PRUint32 aOffset=0,
PRUint32 aCount=0,
PRUint32 aFlags=0,
nsIRequestObserver *aObserver=NULL,
nsISupports *aContext=NULL)
{
NS_ENSURE_ARG_POINTER(aTransport);
nsresult rv;
nsCOMPtr<nsIStreamListener> listener;
rv = NS_NewSimpleStreamListener(getter_AddRefs(listener),
aSink,
aObserver);
if (NS_FAILED(rv)) return rv;
return aTransport->AsyncRead(listener, aContext,
aOffset,
aCount,
aFlags,
aRequest);
}
inline nsresult
NS_CheckPortSafety(PRInt32 port, const char* scheme, nsIIOService* ioService = nsnull)
{
nsresult rv;
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
PRBool allow;
rv = ioService->AllowPort(port, scheme, &allow);
if (NS_FAILED(rv)) {
NS_ERROR("NS_CheckPortSafety: ioService->AllowPort failed\n");
return rv;
}
if (!allow)
return NS_ERROR_PORT_ACCESS_NOT_ALLOWED;
return NS_OK;
}
inline nsresult
NS_NewProxyInfo(const char* type, const char* host, PRInt32 port, nsIProxyInfo* *result)
{
nsresult rv;
static NS_DEFINE_CID(kPPSServiceCID, NS_PROTOCOLPROXYSERVICE_CID);
nsCOMPtr<nsIProtocolProxyService> pps = do_GetService(kPPSServiceCID,&rv);
if (NS_FAILED(rv)) return rv;
return pps->NewProxyInfo(type, host, port, result);
}
inline nsresult
NS_InitFileFromURLSpec(nsIFile* aFile, const char *inURL,
nsIIOService *ioService=nsnull)
{
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
nsresult rv;
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
return ioService->InitFileFromURLSpec(aFile, inURL);
}
inline nsresult
NS_GetURLSpecFromFile(nsIFile* aFile, char **aUrl,
nsIIOService *ioService=nsnull)
{
nsCOMPtr<nsIIOService> serv;
if (ioService == nsnull) {
nsresult rv;
serv = do_GetIOService(&rv);
if (NS_FAILED(rv)) return rv;
ioService = serv.get();
}
return ioService->GetURLSpecFromFile(aFile, aUrl);
}
#endif // nsNetUtil_h__
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