390 lines
10 KiB
C++
390 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsInputStreamChannel.h"
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#include "nsIServiceManager.h"
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#include "nsIStreamTransportService.h"
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#include "nsIEventQueueService.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsITransport.h"
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#include "nsNetUtil.h"
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#include "nsCOMPtr.h"
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#include "prlog.h"
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#if defined(PR_LOGGING)
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//
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// NSPR_LOG_MODULES=nsStreamChannel:5
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//
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static PRLogModuleInfo *gStreamChannelLog = nsnull;
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#endif
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#define LOG(args) PR_LOG(gStreamChannelLog, PR_LOG_DEBUG, args)
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#define LOG_ENABLED() PR_LOG_TEST(gStreamChannelLog, 4)
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel methods
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//-----------------------------------------------------------------------------
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nsInputStreamChannel::nsInputStreamChannel()
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: mContentLength(-1)
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, mLoadFlags(LOAD_NORMAL)
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, mStatus(NS_OK)
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{
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#if defined(PR_LOGGING)
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if (!gStreamChannelLog)
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gStreamChannelLog = PR_NewLogModule("nsStreamChannel");
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#endif
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}
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nsInputStreamChannel::~nsInputStreamChannel()
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{
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}
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsISupports
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//-----------------------------------------------------------------------------
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NS_IMPL_ISUPPORTS5(nsInputStreamChannel,
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nsIChannel,
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nsIRequest,
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nsIStreamListener,
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nsIRequestObserver,
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nsIInputStreamChannel)
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsIRequest
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsInputStreamChannel::GetName(nsACString &result)
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{
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return mURI->GetSpec(result);
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}
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NS_IMETHODIMP
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nsInputStreamChannel::IsPending(PRBool *result)
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{
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NS_ENSURE_TRUE(mPump, NS_ERROR_NOT_INITIALIZED);
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return mPump->IsPending(result);
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}
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NS_IMETHODIMP
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nsInputStreamChannel::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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nsInputStreamChannel::Cancel(nsresult status)
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{
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mStatus = status;
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if (mPump)
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mPump->Cancel(status);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::Suspend()
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{
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NS_ENSURE_TRUE(mPump, NS_ERROR_NOT_INITIALIZED);
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return mPump->Suspend();
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}
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NS_IMETHODIMP
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nsInputStreamChannel::Resume()
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{
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NS_ENSURE_TRUE(mPump, NS_ERROR_NOT_INITIALIZED);
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return mPump->Resume();
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}
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NS_IMETHODIMP
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nsInputStreamChannel::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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nsInputStreamChannel::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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nsInputStreamChannel::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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nsInputStreamChannel::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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// nsInputStreamChannel::nsIChannel implementation
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsInputStreamChannel::GetOriginalURI(nsIURI **aURI)
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{
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*aURI = mOriginalURI ? mOriginalURI : mURI;
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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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nsInputStreamChannel::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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nsInputStreamChannel::GetURI(nsIURI **aURI)
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{
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NS_IF_ADDREF(*aURI = mURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::GetOwner(nsISupports **aOwner)
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{
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NS_IF_ADDREF(*aOwner = mOwner);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::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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nsInputStreamChannel::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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nsInputStreamChannel::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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nsInputStreamChannel::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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nsInputStreamChannel::GetContentType(nsACString &aContentType)
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{
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aContentType = mContentType;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::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.
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// 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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nsInputStreamChannel::GetContentCharset(nsACString &aContentCharset)
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{
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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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nsInputStreamChannel::SetContentCharset(const 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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mContentCharset = aContentCharset;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::GetContentLength(PRInt32 *aContentLength)
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{
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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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nsInputStreamChannel::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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nsInputStreamChannel::Open(nsIInputStream **result)
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{
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NS_ENSURE_TRUE(mContentStream, NS_ERROR_NOT_INITIALIZED);
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NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
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// XXX this won't work if mContentStream is non-blocking.
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NS_ADDREF(*result = mContentStream);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
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{
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NS_ENSURE_TRUE(mContentStream, NS_ERROR_NOT_INITIALIZED);
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NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
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// if content length is unknown, then we must guess... in this case, we
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// assume the stream can tell us. if the stream is a pipe, then this will
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// not work. in that case, we hope that the user of this interface would
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// have set our content length to PR_UINT32_MAX to cause us to read until
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// end of stream.
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if (mContentLength == -1)
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mContentStream->Available((PRUint32 *) &mContentLength);
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nsresult rv = NS_NewInputStreamPump(getter_AddRefs(mPump), mContentStream,
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-1, mContentLength, 0, 0, PR_TRUE);
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if (NS_FAILED(rv)) return rv;
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rv = mPump->AsyncRead(this, nsnull);
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if (NS_FAILED(rv)) return rv;
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if (mLoadGroup)
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mLoadGroup->AddRequest(this, nsnull);
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mListener = listener;
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mListenerContext = ctxt;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsIInputStreamChannel implementation
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsInputStreamChannel::SetURI(nsIURI *uri)
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{
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NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
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mURI = uri;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::GetContentStream(nsIInputStream **stream)
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{
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NS_IF_ADDREF(*stream = mContentStream);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::SetContentStream(nsIInputStream *stream)
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{
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NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
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mContentStream = stream;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsIStreamListener implementation
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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nsInputStreamChannel::OnStartRequest(nsIRequest *req, nsISupports *ctx)
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{
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return mListener->OnStartRequest(this, mListenerContext);
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}
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NS_IMETHODIMP
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nsInputStreamChannel::OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
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{
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if (NS_SUCCEEDED(mStatus))
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mStatus = status;
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mListener->OnStopRequest(this, mListenerContext, mStatus);
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mListener = 0;
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mListenerContext = 0;
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if (mLoadGroup)
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mLoadGroup->RemoveRequest(this, nsnull, mStatus);
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mPump = 0;
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mContentStream = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::OnDataAvailable(nsIRequest *req, nsISupports *ctx,
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nsIInputStream *stream,
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PRUint32 offset, PRUint32 count)
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{
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nsresult rv;
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rv = mListener->OnDataAvailable(this, mListenerContext, stream, offset, count);
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if (mProgressSink && NS_SUCCEEDED(rv) && !(mLoadFlags & LOAD_BACKGROUND))
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mProgressSink->OnProgress(this, nsnull, offset + count, mContentLength);
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return rv; // let the pump cancel on failure
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}
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