gecko-dev/netwerk/base/public/nsNetUtil.h

320 lines
10 KiB
C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsNetUtil_h__
#define nsNetUtil_h__
#include "nsIURI.h"
#include "netCore.h"
#include "nsIInputStream.h"
#include "nsIStreamListener.h"
#include "nsILoadGroup.h"
#include "nsIInterfaceRequestor.h"
#include "nsString.h"
#include "nsIIOService.h"
#include "nsIServiceManager.h"
#include "nsIChannel.h"
#include "nsIAllocator.h"
#include "nsCOMPtr.h"
#include "nsIHTTPProtocolHandler.h"
#include "nsIUnicharStreamLoader.h"
inline nsresult
NS_NewURI(nsIURI* *result, const char* spec, nsIURI* baseURI = nsnull)
{
nsresult rv;
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = serv->NewURI(spec, baseURI, result);
return rv;
}
inline nsresult
NS_NewURI(nsIURI* *result, const nsString& spec, nsIURI* baseURI = nsnull)
{
// XXX if the string is unicode, GetBuffer() returns null.
// XXX we need a strategy to deal w/ unicode specs (if there should
// XXX even be such a thing)
char* specStr = spec.ToNewCString(); // this forces a single byte char*
if (specStr == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = NS_NewURI(result, specStr, baseURI);
nsAllocator::Free(specStr);
return rv;
}
inline nsresult
NS_OpenURI(nsIChannel* *result, nsIURI* uri, nsILoadGroup *aGroup,
nsIInterfaceRequestor *capabilities = nsnull,
nsLoadFlags loadAttributes = nsIChannel::LOAD_NORMAL,
PRUint32 bufferSegmentSize = 0,
PRUint32 bufferMaxSize = 0)
{
nsresult rv;
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsIChannel* channel;
rv = serv->NewChannelFromURI("load", uri, aGroup, capabilities,
loadAttributes, nsnull,
bufferSegmentSize, bufferMaxSize, &channel);
if (NS_FAILED(rv)) return rv;
*result = channel;
return rv;
}
inline nsresult
NS_OpenURI(nsIInputStream* *result, nsIURI* uri)
{
nsresult rv;
nsIChannel* channel;
rv = NS_OpenURI(&channel, uri, nsnull);
if (NS_FAILED(rv)) return rv;
nsIInputStream* inStr;
rv = channel->OpenInputStream(0, -1, &inStr);
NS_RELEASE(channel);
if (NS_FAILED(rv)) return rv;
*result = inStr;
return rv;
}
inline nsresult
NS_OpenURI(nsIStreamListener* aConsumer, nsISupports* context, nsIURI* uri,
nsILoadGroup *aGroup)
{
nsresult rv;
nsIChannel* channel;
rv = NS_OpenURI(&channel, uri, aGroup);
if (NS_FAILED(rv)) return rv;
rv = channel->AsyncRead(0, -1, context, aConsumer);
NS_RELEASE(channel);
return rv;
}
inline nsresult
NS_MakeAbsoluteURI(const char* spec, nsIURI* baseURI, char* *result)
{
nsresult rv;
NS_ASSERTION(baseURI, "It doesn't make sense to not supply a base URI");
if (spec == nsnull)
return baseURI->GetSpec(result);
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
PRUint32 startPos, endPos;
rv = serv->ExtractScheme(spec, &startPos, &endPos, nsnull);
if (NS_SUCCEEDED(rv)) {
// if spec has a scheme, then it's already absolute
*result = nsCRT::strdup(spec);
return (*result == nsnull) ? NS_ERROR_OUT_OF_MEMORY : NS_OK;
}
return baseURI->Resolve(spec, result);
}
inline nsresult
NS_MakeAbsoluteURI(const nsString& spec, nsIURI* baseURI, nsString& result)
{
char* resultStr;
char* specStr = spec.ToNewCString();
if (!specStr) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv = NS_MakeAbsoluteURI(specStr, baseURI, &resultStr);
nsAllocator::Free(specStr);
if (NS_FAILED(rv)) return rv;
result = resultStr;
nsAllocator::Free(resultStr);
return rv;
}
inline nsresult
NS_NewPostDataStream(PRBool isFile, const char *data, PRUint32 encodeFlags,
nsIInputStream **result)
{
nsresult rv;
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIProtocolHandler> handler;
rv = serv->GetProtocolHandler("http", getter_AddRefs(handler));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIHTTPProtocolHandler> http = do_QueryInterface(handler, &rv);
if (NS_FAILED(rv)) return rv;
return http->NewPostDataStream(isFile, data, encodeFlags, result);
}
inline nsresult
NS_NewInputStreamChannel(nsIURI* uri,
const char* contentType,
PRUint32 contentLength,
nsIInputStream* inStr,
nsILoadGroup* group,
nsIInterfaceRequestor* notificationCallbacks,
nsLoadFlags loadAttributes,
nsIURI* originalURI,
PRUint32 bufferSegmentSize,
PRUint32 bufferMaxSize,
nsIChannel **result)
{
nsresult rv;
nsCOMPtr<nsIInputStreamChannel> channel;
static NS_DEFINE_CID(kInputStreamChannelCID, NS_INPUTSTREAMCHANNEL_CID);
rv = nsComponentManager::CreateInstance(kInputStreamChannelCID,
nsnull,
NS_GET_IID(nsIInputStreamChannel),
getter_AddRefs(channel));
if (NS_FAILED(rv)) return rv;
rv = channel->Init(uri, contentType, contentLength, inStr, group,
notificationCallbacks, loadAttributes, originalURI,
bufferSegmentSize, bufferMaxSize);
if (NS_FAILED(rv)) return rv;
*result = channel;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewLoadGroup(nsIStreamObserver* obs, nsILoadGroup* *result)
{
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->Init(obs);
if (NS_FAILED(rv)) return rv;
*result = group;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewUnicharStreamLoader(nsIUnicharStreamLoader* *result,
nsIURI* uri,
nsIUnicharStreamLoaderObserver* observer,
nsILoadGroup* loadGroup = nsnull,
nsIInterfaceRequestor* notificationCallbacks = nsnull,
nsLoadFlags loadAttributes = nsIChannel::LOAD_NORMAL,
PRUint32 bufferSegmentSize = 0,
PRUint32 bufferMaxSize = 0)
{
nsresult rv;
nsCOMPtr<nsIUnicharStreamLoader> loader;
static NS_DEFINE_CID(kUnicharStreamLoaderCID, NS_UNICHARSTREAMLOADER_CID);
rv = nsComponentManager::CreateInstance(kUnicharStreamLoaderCID,
nsnull,
NS_GET_IID(nsIUnicharStreamLoader),
getter_AddRefs(loader));
if (NS_FAILED(rv)) return rv;
rv = loader->Init(uri, observer, loadGroup, notificationCallbacks, loadAttributes,
bufferSegmentSize, bufferMaxSize);
if (NS_FAILED(rv)) return rv;
*result = loader;
NS_ADDREF(*result);
return rv;
}
inline nsresult
NS_NewAsyncStreamObserver(nsIStreamObserver *receiver, nsIEventQueue *eventQueue,
nsIStreamObserver **result)
{
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;
*result = obs;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewAsyncStreamListener(nsIStreamListener *receiver, nsIEventQueue *eventQueue,
nsIStreamListener **result)
{
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;
*result = lsnr;
NS_ADDREF(*result);
return NS_OK;
}
inline nsresult
NS_NewSyncStreamListener(nsIInputStream **inStream,
nsIBufferOutputStream **outStream,
nsIStreamListener **listener)
{
nsresult rv;
nsCOMPtr<nsISyncStreamListener> lsnr;
static NS_DEFINE_CID(kSyncStreamListenerCID, NS_SYNCSTREAMLISTENER_CID);
rv = nsComponentManager::CreateInstance(kSyncStreamListenerCID,
nsnull,
NS_GET_IID(nsISyncStreamListener),
getter_AddRefs(lsnr));
if (NS_FAILED(rv)) return rv;
rv = lsnr->Init(inStream, outStream);
if (NS_FAILED(rv)) return rv;
*listener = lsnr;
NS_ADDREF(*listener);
return NS_OK;
}
#endif // nsNetUtil_h__