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gecko-dev/netwerk/base/public/nsNetUtil.h
bzbarsky%mit.edu 4afb4ac280 Look for charset param on content type with a case-insensitive search. Bug 
220203, r=timeless, sr=darin
2003-09-25 15:37:56 +00:00

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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): Bradley Baetz <bbaetz@student.usyd.edu.au>
*
* 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 "nsNetError.h"
#include "nsNetCID.h"
#include "nsReadableUtils.h"
#include "nsString.h"
#include "nsMemory.h"
#include "nsCOMPtr.h"
#include "prio.h" // for read/write flags, permissions, etc.
#include "nsIURI.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsIStreamListener.h"
#include "nsIRequestObserverProxy.h"
#include "nsIStreamListenerProxy.h" // XXX for nsIAsyncStreamListener
#include "nsISimpleStreamListener.h"
#include "nsILoadGroup.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIIOService.h"
#include "nsIServiceManager.h"
#include "nsIChannel.h"
#include "nsIInputStreamChannel.h"
#include "nsITransport.h"
#include "nsIStreamTransportService.h"
#include "nsIHttpChannel.h"
#include "nsIDownloader.h"
#include "nsIResumableEntityID.h"
#include "nsIStreamLoader.h"
#include "nsIUnicharStreamLoader.h"
#include "nsIPipe.h"
#include "nsIProtocolHandler.h"
#include "nsIFileProtocolHandler.h"
#include "nsIStringStream.h"
#include "nsILocalFile.h"
#include "nsIFileStreams.h"
#include "nsIProtocolProxyService.h"
#include "nsIProxyInfo.h"
#include "nsIFileStreams.h"
#include "nsIBufferedStreams.h"
#include "nsIInputStreamPump.h"
#include "nsIAsyncStreamCopier.h"
#include "nsIPersistentProperties2.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);
}
// private little helper function... don't call this directly!
inline nsresult
net_EnsureIOService(nsIIOService **ios, nsCOMPtr<nsIIOService> &grip)
{
nsresult rv = NS_OK;
if (!*ios) {
grip = do_GetIOService(&rv);
*ios = grip;
}
return rv;
}
inline nsresult
NS_NewURI(nsIURI **result,
const nsACString &spec,
const char *charset = nsnull,
nsIURI *baseURI = nsnull,
nsIIOService *ioService = nsnull) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService)
rv = ioService->NewURI(spec, charset, baseURI, result);
return rv;
}
inline nsresult
NS_NewURI(nsIURI* *result,
const nsAString& spec,
const char *charset = nsnull,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
return NS_NewURI(result, NS_ConvertUCS2toUTF8(spec), charset, baseURI, ioService);
}
inline nsresult
NS_NewURI(nsIURI* *result,
const char *spec,
nsIURI* baseURI = nsnull,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
return NS_NewURI(result, nsDependentCString(spec), nsnull, baseURI, ioService);
}
inline nsresult
NS_NewFileURI(nsIURI* *result,
nsIFile* spec,
nsIIOService* ioService = nsnull) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService)
rv = ioService->NewFileURI(spec, result);
return rv;
}
inline nsresult
NS_NewChannel(nsIChannel **result,
nsIURI *uri,
nsIIOService *ioService = nsnull, // pass in nsIIOService to optimize callers
nsILoadGroup *loadGroup = nsnull,
nsIInterfaceRequestor *callbacks = nsnull,
PRUint32 loadFlags = nsIRequest::LOAD_NORMAL)
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService) {
nsIChannel *chan;
rv = ioService->NewChannelFromURI(uri, &chan);
if (NS_SUCCEEDED(rv)) {
if (loadGroup)
rv |= chan->SetLoadGroup(loadGroup);
if (callbacks)
rv |= chan->SetNotificationCallbacks(callbacks);
if (loadFlags != nsIRequest::LOAD_NORMAL)
rv |= chan->SetLoadFlags(loadFlags);
if (NS_SUCCEEDED(rv))
*result = chan;
else
NS_RELEASE(chan);
}
}
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 *callbacks = nsnull,
PRUint32 loadFlags = nsIRequest::LOAD_NORMAL)
{
nsresult rv;
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel), uri, ioService,
loadGroup, callbacks, loadFlags);
if (NS_SUCCEEDED(rv)) {
nsIInputStream *stream;
rv = channel->Open(&stream);
if (NS_SUCCEEDED(rv))
*result = stream;
}
return rv;
}
inline nsresult
NS_OpenURI(nsIStreamListener *listener,
nsISupports *context,
nsIURI *uri,
nsIIOService *ioService = nsnull, // pass in nsIIOService to optimize callers
nsILoadGroup *loadGroup = nsnull,
nsIInterfaceRequestor *callbacks = nsnull,
PRUint32 loadFlags = nsIRequest::LOAD_NORMAL)
{
nsresult rv;
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel), uri, ioService,
loadGroup, callbacks, loadFlags);
if (NS_SUCCEEDED(rv))
rv = channel->AsyncOpen(listener, context);
return rv;
}
inline nsresult
NS_MakeAbsoluteURI(nsACString &result,
const nsACString &spec,
nsIURI *baseURI,
nsIIOService *unused = nsnull)
{
nsresult rv;
if (!baseURI) {
NS_WARNING("It doesn't make sense to not supply a base URI");
result = spec;
rv = NS_OK;
}
else if (spec.IsEmpty())
rv = baseURI->GetSpec(result);
else
rv = baseURI->Resolve(spec, result);
return rv;
}
inline nsresult
NS_MakeAbsoluteURI(char **result,
const char *spec,
nsIURI *baseURI,
nsIIOService *unused = nsnull)
{
nsresult rv;
nsCAutoString resultBuf;
rv = NS_MakeAbsoluteURI(resultBuf, nsDependentCString(spec), baseURI);
if (NS_SUCCEEDED(rv)) {
*result = ToNewCString(resultBuf);
if (!*result)
rv = NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
inline nsresult
NS_MakeAbsoluteURI(nsAString &result,
const nsAString &spec,
nsIURI *baseURI,
nsIIOService *unused = nsnull)
{
nsresult rv;
if (!baseURI) {
NS_WARNING("It doesn't make sense to not supply a base URI");
result = spec;
rv = NS_OK;
}
else {
nsCAutoString resultBuf;
if (spec.IsEmpty())
rv = baseURI->GetSpec(resultBuf);
else
rv = baseURI->Resolve(NS_ConvertUCS2toUTF8(spec), resultBuf);
if (NS_SUCCEEDED(rv))
CopyUTF8toUTF16(resultBuf, result);
}
return rv;
}
inline nsresult
NS_NewInputStreamChannel(nsIChannel **result,
nsIURI *uri,
nsIInputStream *stream,
const nsACString &contentType = NS_LITERAL_CSTRING(""),
const nsACString &contentCharset = NS_LITERAL_CSTRING(""))
{
nsresult rv;
static NS_DEFINE_CID(kInputStreamChannelCID, NS_INPUTSTREAMCHANNEL_CID);
nsCOMPtr<nsIInputStreamChannel> channel =
do_CreateInstance(kInputStreamChannelCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv |= channel->SetURI(uri);
rv |= channel->SetContentStream(stream);
rv |= channel->SetContentType(contentType);
rv |= channel->SetContentCharset(contentCharset);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = channel);
}
return rv;
}
inline nsresult
NS_NewInputStreamPump(nsIInputStreamPump **result,
nsIInputStream *stream,
PRInt32 streamPos = -1,
PRInt32 streamLen = -1,
PRUint32 segsize = 0,
PRUint32 segcount = 0,
PRBool closeWhenDone = PR_FALSE)
{
nsresult rv;
static NS_DEFINE_CID(kInputStreamPumpCID, NS_INPUTSTREAMPUMP_CID);
nsCOMPtr<nsIInputStreamPump> pump =
do_CreateInstance(kInputStreamPumpCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = pump->Init(stream, streamPos, streamLen,
segsize, segcount, closeWhenDone);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = pump);
}
return rv;
}
// NOTE: you can optimize the copy by specifying whether or not your streams
// are buffered (i.e., do they implement ReadSegments/WriteSegments). the
// default assumption of FALSE for both streams is OK, but the copy is much
// more efficient if one of the streams is buffered.
inline nsresult
NS_NewAsyncStreamCopier(nsIAsyncStreamCopier **result,
nsIInputStream *source,
nsIOutputStream *sink,
PRBool sourceBuffered = PR_FALSE,
PRBool sinkBuffered = PR_FALSE,
PRUint32 chunkSize = 0)
{
nsresult rv;
static NS_DEFINE_CID(kAsyncStreamCopierCID, NS_ASYNCSTREAMCOPIER_CID);
nsCOMPtr<nsIAsyncStreamCopier> copier =
do_CreateInstance(kAsyncStreamCopierCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = copier->Init(source, sink, sourceBuffered, sinkBuffered, chunkSize);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = copier);
}
return rv;
}
inline nsresult
NS_NewLoadGroup(nsILoadGroup **result,
nsIRequestObserver *obs)
{
nsresult rv;
static NS_DEFINE_CID(kLoadGroupCID, NS_LOADGROUP_CID);
nsCOMPtr<nsILoadGroup> group =
do_CreateInstance(kLoadGroupCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = group->SetGroupObserver(obs);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = group);
}
return rv;
}
inline nsresult
NS_NewDownloader(nsIStreamListener **result,
nsIDownloadObserver *observer,
nsIFile *downloadLocation = nsnull)
{
nsresult rv;
static NS_DEFINE_CID(kDownloaderCID, NS_DOWNLOADER_CID);
nsCOMPtr<nsIDownloader> downloader =
do_CreateInstance(kDownloaderCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = downloader->Init(observer, downloadLocation);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = downloader);
}
return rv;
}
inline nsresult
NS_NewStreamLoader(nsIStreamLoader **aResult,
nsIChannel *aChannel,
nsIStreamLoaderObserver *aObserver,
nsISupports *aContext)
{
nsresult rv;
static NS_DEFINE_CID(kStreamLoaderCID, NS_STREAMLOADER_CID);
nsCOMPtr<nsIStreamLoader> loader =
do_CreateInstance(kStreamLoaderCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = loader->Init(aChannel, aObserver, aContext);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = loader);
}
return rv;
}
inline nsresult
NS_NewStreamLoader(nsIStreamLoader **result,
nsIURI *uri,
nsIStreamLoaderObserver *observer,
nsISupports *context = nsnull,
nsILoadGroup *loadGroup = nsnull,
nsIInterfaceRequestor *callbacks = nsnull,
PRUint32 loadFlags = nsIRequest::LOAD_NORMAL,
nsIURI *referrer = nsnull)
{
nsresult rv;
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel),
uri,
nsnull,
loadGroup,
callbacks,
loadFlags);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel)
httpChannel->SetReferrer(referrer);
rv = NS_NewStreamLoader(result, channel, observer, context);
}
return rv;
}
inline nsresult
NS_NewUnicharStreamLoader(nsIUnicharStreamLoader **aResult,
nsIChannel *aChannel,
nsIUnicharStreamLoaderObserver *aObserver,
nsISupports *aContext = nsnull,
PRUint32 aSegmentSize = nsIUnicharStreamLoader::DEFAULT_SEGMENT_SIZE)
{
nsresult rv;
static NS_DEFINE_CID(kUnicharStreamLoaderCID, NS_UNICHARSTREAMLOADER_CID);
nsCOMPtr<nsIUnicharStreamLoader> loader =
do_CreateInstance(kUnicharStreamLoaderCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = loader->Init(aChannel, aObserver, aContext, aSegmentSize);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = loader);
}
return rv;
}
inline nsresult
NS_NewRequestObserverProxy(nsIRequestObserver **aResult,
nsIRequestObserver *aObserver,
nsIEventQueue *aEventQ = nsnull)
{
nsresult rv;
static NS_DEFINE_CID(kRequestObserverProxyCID, NS_REQUESTOBSERVERPROXY_CID);
nsCOMPtr<nsIRequestObserverProxy> proxy =
do_CreateInstance(kRequestObserverProxyCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = proxy->Init(aObserver, aEventQ);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = proxy);
}
return rv;
}
inline nsresult
NS_NewSimpleStreamListener(nsIStreamListener **aResult,
nsIOutputStream *aSink,
nsIRequestObserver *aObserver = nsnull)
{
nsresult rv;
static NS_DEFINE_CID(kSimpleStreamListenerCID, NS_SIMPLESTREAMLISTENER_CID);
nsCOMPtr<nsISimpleStreamListener> listener =
do_CreateInstance(kSimpleStreamListenerCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = listener->Init(aSink, aObserver);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = listener);
}
return rv;
}
// Deprecated, prefer NS_NewStreamListenerProxy
inline nsresult
NS_NewAsyncStreamListener(nsIStreamListener **result,
nsIStreamListener *receiver,
nsIEventQueue *eventQueue)
{
nsresult rv;
static NS_DEFINE_CID(kAsyncStreamListenerCID, NS_ASYNCSTREAMLISTENER_CID);
nsCOMPtr<nsIAsyncStreamListener> lsnr =
do_CreateInstance(kAsyncStreamListenerCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = lsnr->Init(receiver, eventQueue);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = lsnr);
}
return rv;
}
inline nsresult
NS_CheckPortSafety(PRInt32 port,
const char *scheme,
nsIIOService *ioService = nsnull)
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService) {
PRBool allow;
rv = ioService->AllowPort(port, scheme, &allow);
if (NS_SUCCEEDED(rv) && !allow)
rv = NS_ERROR_PORT_ACCESS_NOT_ALLOWED;
}
return rv;
}
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_SUCCEEDED(rv))
rv = pps->NewProxyInfo(type, host, port, result);
return rv;
}
inline nsresult
NS_GetFileProtocolHandler(nsIFileProtocolHandler **result,
nsIIOService *ioService = nsnull)
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService) {
nsCOMPtr<nsIProtocolHandler> handler;
rv = ioService->GetProtocolHandler("file", getter_AddRefs(handler));
if (NS_SUCCEEDED(rv))
rv = CallQueryInterface(handler, result);
}
return rv;
}
inline nsresult
NS_GetFileFromURLSpec(const nsACString &inURL,
nsIFile **result,
nsIIOService *ioService = nsnull)
{
nsresult rv;
nsCOMPtr<nsIFileProtocolHandler> fileHandler;
rv = NS_GetFileProtocolHandler(getter_AddRefs(fileHandler), ioService);
if (NS_SUCCEEDED(rv))
rv = fileHandler->GetFileFromURLSpec(inURL, result);
return rv;
}
inline nsresult
NS_GetURLSpecFromFile(nsIFile *aFile,
nsACString &aUrl,
nsIIOService *ioService = nsnull)
{
nsresult rv;
nsCOMPtr<nsIFileProtocolHandler> fileHandler;
rv = NS_GetFileProtocolHandler(getter_AddRefs(fileHandler), ioService);
if (NS_SUCCEEDED(rv))
rv = fileHandler->GetURLSpecFromFile(aFile, aUrl);
return rv;
}
inline nsresult
NS_NewResumableEntityID(nsIResumableEntityID **aRes,
PRUint32 size,
PRTime lastModified)
{
nsresult rv;
nsCOMPtr<nsIResumableEntityID> ent =
do_CreateInstance(NS_RESUMABLEENTITYID_CONTRACTID,&rv);
if (NS_SUCCEEDED(rv)) {
ent->SetSize(size);
ent->SetLastModified(lastModified);
NS_ADDREF(*aRes = ent);
}
return rv;
}
inline nsresult
NS_ExamineForProxy(const char *scheme,
const char *host,
PRInt32 port,
nsIProxyInfo **proxyInfo)
{
nsresult rv;
static NS_DEFINE_CID(kPPSServiceCID, NS_PROTOCOLPROXYSERVICE_CID);
nsCOMPtr<nsIProtocolProxyService> pps = do_GetService(kPPSServiceCID, &rv);
if (NS_SUCCEEDED(rv)) {
nsCAutoString spec(scheme);
spec.Append("://");
spec.Append(host);
spec.Append(':');
spec.AppendInt(port);
// XXXXX - Under no circumstances whatsoever should any code which
// wants a uri do this. I do this here because I do not, in fact,
// actually want a uri (the dummy uris created here may not be
// syntactically valid for the specific protocol), and all we need
// is something which has a valid scheme, hostname, and a string
// to pass to PAC if needed - bbaetz
static NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
nsCOMPtr<nsIURI> uri = do_CreateInstance(kStandardURLCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = uri->SetSpec(spec);
if (NS_SUCCEEDED(rv))
rv = pps->ExamineForProxy(uri, proxyInfo);
}
}
return rv;
}
inline nsresult
NS_ParseContentType(const nsACString &rawContentType,
nsCString &contentType,
nsCString &contentCharset)
{
// contentCharset is left untouched if not present in rawContentType
nsACString::const_iterator begin, it, end;
it = rawContentType.BeginReading(begin);
rawContentType.EndReading(end);
if (FindCharInReadable(';', it, end)) {
contentType = Substring(begin, it);
// now look for "charset=FOO" and extract "FOO"
begin = ++it;
if (FindInReadable(NS_LITERAL_CSTRING("charset="), begin, it = end,
nsCaseInsensitiveCStringComparator())) {
contentCharset = Substring(it, end);
contentCharset.StripWhitespace();
}
}
else
contentType = rawContentType;
ToLowerCase(contentType);
contentType.StripWhitespace();
return NS_OK;
}
inline nsresult
NS_NewLocalFileInputStream(nsIInputStream **aResult,
nsIFile *aFile,
PRInt32 aIOFlags = -1,
PRInt32 aPerm = -1,
PRInt32 aBehaviorFlags = 0)
{
nsresult rv;
static NS_DEFINE_CID(kLocalFileInputStreamCID, NS_LOCALFILEINPUTSTREAM_CID);
nsCOMPtr<nsIFileInputStream> in =
do_CreateInstance(kLocalFileInputStreamCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = in->Init(aFile, aIOFlags, aPerm, aBehaviorFlags);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = in);
}
return rv;
}
inline nsresult
NS_NewLocalFileOutputStream(nsIOutputStream **aResult,
nsIFile *aFile,
PRInt32 aIOFlags = -1,
PRInt32 aPerm = -1,
PRInt32 aBehaviorFlags = 0)
{
nsresult rv;
static NS_DEFINE_CID(kLocalFileOutputStreamCID, NS_LOCALFILEOUTPUTSTREAM_CID);
nsCOMPtr<nsIFileOutputStream> out =
do_CreateInstance(kLocalFileOutputStreamCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = out->Init(aFile, aIOFlags, aPerm, aBehaviorFlags);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = out);
}
return rv;
}
// returns the input end of a pipe. the output end of the pipe
// is attached to the original stream. data from the original
// stream is read into the pipe on a background thread.
inline nsresult
NS_BackgroundInputStream(nsIInputStream **aResult,
nsIInputStream *aStream,
PRUint32 aSegmentSize = 0,
PRUint32 aSegmentCount = 0)
{
nsresult rv;
nsCOMPtr<nsIStreamTransportService> sts =
do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsITransport> inTransport;
rv = sts->CreateInputTransport(aStream, -1, -1, PR_TRUE,
getter_AddRefs(inTransport));
if (NS_SUCCEEDED(rv))
rv = inTransport->OpenInputStream(nsITransport::OPEN_BLOCKING,
aSegmentSize, aSegmentCount,
aResult);
}
return rv;
}
// returns the output end of a pipe. the input end of the pipe
// is attached to the original stream. data written to the pipe
// is copied to the original stream on a background thread.
inline nsresult
NS_BackgroundOutputStream(nsIOutputStream **aResult,
nsIOutputStream *aStream,
PRUint32 aSegmentSize = 0,
PRUint32 aSegmentCount = 0)
{
nsresult rv;
nsCOMPtr<nsIStreamTransportService> sts =
do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsITransport> inTransport;
rv = sts->CreateOutputTransport(aStream, -1, -1, PR_TRUE,
getter_AddRefs(inTransport));
if (NS_SUCCEEDED(rv))
rv = inTransport->OpenOutputStream(nsITransport::OPEN_BLOCKING,
aSegmentSize, aSegmentCount,
aResult);
}
return rv;
}
inline nsresult
NS_NewBufferedInputStream(nsIInputStream **aResult,
nsIInputStream *aStr,
PRUint32 aBufferSize)
{
nsresult rv;
static NS_DEFINE_CID(kBufferedInputStreamCID, NS_BUFFEREDINPUTSTREAM_CID);
nsCOMPtr<nsIBufferedInputStream> in =
do_CreateInstance(kBufferedInputStreamCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = in->Init(aStr, aBufferSize);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = in);
}
return rv;
}
inline nsresult
NS_NewBufferedOutputStream(nsIOutputStream **aResult,
nsIOutputStream *aStr,
PRUint32 aBufferSize)
{
nsresult rv;
static NS_DEFINE_CID(kBufferedOutputStreamCID, NS_BUFFEREDOUTPUTSTREAM_CID);
nsCOMPtr<nsIBufferedOutputStream> out =
do_CreateInstance(kBufferedOutputStreamCID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = out->Init(aStr, aBufferSize);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*aResult = out);
}
return rv;
}
// returns an input stream compatible with nsIUploadChannel::SetUploadStream()
inline nsresult
NS_NewPostDataStream(nsIInputStream **result,
PRBool isFile,
const nsACString &data,
PRUint32 encodeFlags,
nsIIOService *unused = nsnull)
{
if (isFile) {
nsresult rv;
nsCOMPtr<nsILocalFile> file;
nsCOMPtr<nsIInputStream> fileStream;
rv = NS_NewNativeLocalFile(data, PR_FALSE, getter_AddRefs(file));
if (NS_SUCCEEDED(rv)) {
rv = NS_NewLocalFileInputStream(getter_AddRefs(fileStream), file);
if (NS_SUCCEEDED(rv)) {
// wrap the file stream with a buffered input stream
rv = NS_NewBufferedInputStream(result, fileStream, 8192);
}
}
return rv;
}
// otherwise, create a string stream for the data (copies)
return NS_NewCStringInputStream(result, data);
}
inline nsresult
NS_LoadPersistentPropertiesFromURI(nsIPersistentProperties **result,
nsIURI *uri,
nsIIOService *ioService = nsnull)
{
nsCOMPtr<nsIInputStream> in;
nsresult rv = NS_OpenURI(getter_AddRefs(in), uri, ioService);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIPersistentProperties> properties =
do_CreateInstance(NS_PERSISTENTPROPERTIES_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = properties->Load(in);
if (NS_SUCCEEDED(rv))
NS_ADDREF(*result = properties);
}
}
return rv;
}
inline nsresult
NS_LoadPersistentPropertiesFromURISpec(nsIPersistentProperties **result,
const nsACString &spec,
const char *charset = nsnull,
nsIURI *baseURI = nsnull,
nsIIOService *ioService = nsnull)
{
nsCOMPtr<nsIURI> uri;
nsresult rv =
NS_NewURI(getter_AddRefs(uri), spec, charset, baseURI, ioService);
if (NS_SUCCEEDED(rv))
rv = NS_LoadPersistentPropertiesFromURI(result, uri, ioService);
return rv;
}
#endif // !nsNetUtil_h__
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