555 lines
15 KiB
C++
555 lines
15 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 "nsCOMPtr.h"
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#include "nsIIOService.h"
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#include "nsIServiceManager.h"
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#include "nsIFileTransportService.h"
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#include "netCore.h"
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#include "nsXPIDLString.h"
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#include "nsReadableUtils.h"
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#include "nsNetCID.h"
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static NS_DEFINE_CID(kFileTransportServiceCID, NS_FILETRANSPORTSERVICE_CID);
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////////////////////////////////////////////////////////////////////////////////
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// nsInputStreamIO methods:
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NS_IMPL_THREADSAFE_ISUPPORTS2(nsInputStreamIO,
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nsIInputStreamIO,
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nsIStreamIO)
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nsInputStreamIO::nsInputStreamIO()
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: mName(nsnull), mContentType(nsnull), mContentLength(-1), mStatus(NS_OK)
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{
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NS_INIT_REFCNT();
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}
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nsInputStreamIO::~nsInputStreamIO()
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{
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(void)Close(NS_OK);
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if (mName) nsCRT::free(mName);
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if (mContentType) nsCRT::free(mContentType);
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}
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NS_METHOD
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nsInputStreamIO::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsInputStreamIO* io = new nsInputStreamIO();
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if (io == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(io);
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nsresult rv = io->QueryInterface(aIID, aResult);
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NS_RELEASE(io);
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return rv;
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}
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NS_IMETHODIMP
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nsInputStreamIO::Init(const char* name, nsIInputStream* input,
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const char* contentType, PRInt32 contentLength)
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{
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mName = nsCRT::strdup(name);
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if (mName == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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mInputStream = input;
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if (contentType) {
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mContentType = nsCRT::strdup(contentType);
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const char *constContentType = mContentType;
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if (!constContentType) return NS_ERROR_OUT_OF_MEMORY;
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char* semicolon = PL_strchr(constContentType, ';');
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CBufDescriptor cbd(constContentType,
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PR_TRUE,
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semicolon ? (semicolon-constContentType) + 1: PL_strlen(constContentType), // capacity
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semicolon ? (semicolon-constContentType) : PL_strlen(constContentType));
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nsCAutoString str(cbd);
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ToLowerCase(str);
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}
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mContentLength = contentLength;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamIO::Open(char **contentType, PRInt32 *contentLength)
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{
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*contentType = nsCRT::strdup(mContentType);
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if (*contentType == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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*contentLength = mContentLength;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamIO::Close(nsresult status)
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{
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mStatus = status;
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if (mInputStream)
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return mInputStream->Close();
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else
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamIO::GetInputStream(nsIInputStream * *aInputStream)
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{
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*aInputStream = mInputStream;
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NS_ADDREF(*aInputStream);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamIO::GetOutputStream(nsIOutputStream * *aOutputStream)
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{
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// this method should never be called
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NS_NOTREACHED("nsInputStreamIO::GetOutputStream");
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsInputStreamIO::GetName(char* *aName)
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{
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*aName = nsCRT::strdup(mName);
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return *aName ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsStreamIOChannel methods:
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nsStreamIOChannel::nsStreamIOChannel()
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: mContentType(nsnull), mContentLength(-1),
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mBufferSegmentSize(0), mBufferMaxSize(0),
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mLoadFlags(LOAD_NORMAL), mStatus(NS_OK)
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{
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NS_INIT_REFCNT();
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}
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nsStreamIOChannel::~nsStreamIOChannel()
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{
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if (mContentType) nsCRT::free(mContentType);
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}
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NS_METHOD
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nsStreamIOChannel::Create(nsISupports *aOuter, REFNSIID aIID,
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void **aResult)
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{
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsStreamIOChannel* channel = new nsStreamIOChannel();
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if (channel == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(channel);
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nsresult rv = channel->QueryInterface(aIID, aResult);
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NS_RELEASE(channel);
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return rv;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::Init(nsIURI* uri, nsIStreamIO* io)
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{
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mURI = uri;
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mStreamIO = io;
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return NS_OK;
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}
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NS_INTERFACE_MAP_BEGIN(nsStreamIOChannel)
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NS_INTERFACE_MAP_ENTRY(nsIStreamIOChannel)
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NS_INTERFACE_MAP_ENTRY(nsIChannel)
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NS_INTERFACE_MAP_ENTRY(nsIRequest)
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NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
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NS_INTERFACE_MAP_ENTRY(nsIStreamProvider)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIRequestObserver, nsIStreamListener)
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NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
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NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStreamListener)
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NS_INTERFACE_MAP_END_THREADSAFE
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NS_IMPL_THREADSAFE_ADDREF(nsStreamIOChannel)
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NS_IMPL_THREADSAFE_RELEASE(nsStreamIOChannel)
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NS_IMETHODIMP
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nsStreamIOChannel::GetName(PRUnichar* *result)
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{
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nsresult rv;
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nsXPIDLCString urlStr;
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rv = mURI->GetSpec(getter_Copies(urlStr));
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if (NS_FAILED(rv)) return rv;
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nsString name;
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name.AppendWithConversion(urlStr);
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*result = ToNewUnicode(name);
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return *result ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::IsPending(PRBool *result)
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{
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if (mRequest)
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return mRequest->IsPending(result);
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*result = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::GetStatus(nsresult *status)
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{
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*status = mStatus;
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// if we don't have a status error of our own to report
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// then we should propagate the status error of the underlying
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// file transport (if we have one)
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if (NS_SUCCEEDED(mStatus) && mRequest)
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mRequest->GetStatus(status);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::Cancel(nsresult status)
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{
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NS_ASSERTION(NS_FAILED(status), "shouldn't cancel with a success code");
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mStatus = status;
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if (mRequest)
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return mRequest->Cancel(status);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::Suspend(void)
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{
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if (mRequest)
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return mRequest->Suspend();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::Resume(void)
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{
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if (mRequest)
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return mRequest->Resume();
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIChannel implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStreamIOChannel::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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nsStreamIOChannel::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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nsStreamIOChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = 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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nsStreamIOChannel::Open(nsIInputStream **result)
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{
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return mStreamIO->GetInputStream(result);
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}
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NS_IMETHODIMP
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nsStreamIOChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
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{
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nsresult rv;
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NS_ASSERTION(listener, "no listener");
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SetListener(listener);
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if (mLoadGroup) {
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rv = mLoadGroup->AddRequest(this, nsnull);
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if (NS_FAILED(rv)) return rv;
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}
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if (mFileTransport == nsnull) {
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nsCOMPtr<nsIFileTransportService> fts =
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do_GetService(kFileTransportServiceCID, &rv);
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if (NS_FAILED(rv)) goto done;
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rv = fts->CreateTransportFromStreamIO(mStreamIO, getter_AddRefs(mFileTransport));
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if (NS_FAILED(rv)) goto done;
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}
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// Hook up the notification callbacks InterfaceRequestor...
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{
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nsCOMPtr<nsIInterfaceRequestor> requestor =
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do_QueryInterface(NS_STATIC_CAST(nsIRequest*, this));
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rv = mFileTransport->SetNotificationCallbacks
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(requestor, (mLoadFlags & nsIRequest::LOAD_BACKGROUND));
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if (NS_FAILED(rv)) goto done;
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}
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#if 0
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if (mContentType == nsnull) {
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rv = mStreamIO->Open(&mContentType, &mContentLength);
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if (NS_FAILED(rv)) goto done;
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}
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#endif
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rv = mFileTransport->AsyncRead(this, ctxt, 0, PRUint32(-1), 0, getter_AddRefs(mRequest));
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done:
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if (NS_FAILED(rv)) {
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nsresult rv2;
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rv2 = mLoadGroup->RemoveRequest(this, ctxt, rv);
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NS_ASSERTION(NS_SUCCEEDED(rv2), "RemoveRequest failed");
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// release the transport so that we don't think we're in progress
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mFileTransport = nsnull;
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}
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return rv;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::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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nsStreamIOChannel::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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nsStreamIOChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
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{
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*aLoadGroup = mLoadGroup.get();
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NS_IF_ADDREF(*aLoadGroup);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::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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NS_IMETHODIMP
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nsStreamIOChannel::GetOwner(nsISupports* *aOwner)
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{
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*aOwner = mOwner.get();
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NS_IF_ADDREF(*aOwner);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::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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nsStreamIOChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
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{
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*aNotificationCallbacks = mCallbacks.get();
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NS_IF_ADDREF(*aNotificationCallbacks);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
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{
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nsresult rv = NS_OK;
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mCallbacks = aNotificationCallbacks;
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mProgressSink = do_GetInterface(mCallbacks);
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return rv;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::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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nsStreamIOChannel::GetContentType(char * *aContentType)
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{
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nsresult rv;
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if (mContentType == nsnull) {
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rv = mStreamIO->Open(&mContentType, &mContentLength);
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if (NS_FAILED(rv)) return rv;
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}
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*aContentType = nsCRT::strdup(mContentType);
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if (*aContentType == nsnull) {
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return NS_ERROR_OUT_OF_MEMORY;
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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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nsStreamIOChannel::SetContentType(const char *aContentType)
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{
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mContentType = nsCRT::strdup(aContentType);
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if (*aContentType == nsnull) {
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return NS_ERROR_OUT_OF_MEMORY;
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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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nsStreamIOChannel::GetContentLength(PRInt32 *aContentLength)
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{
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nsresult rv;
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if (mContentType == nsnull) {
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rv = mStreamIO->Open(&mContentType, &mContentLength);
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if (NS_FAILED(rv)) return rv;
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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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nsStreamIOChannel::SetContentLength(PRInt32 aContentLength)
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{
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mContentLength = aContentLength;
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIRequestObserver implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStreamIOChannel::OnStartRequest(nsIRequest *request, nsISupports* context)
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{
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NS_ASSERTION(mUserObserver, "No listener...");
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return mUserObserver->OnStartRequest(this, context);
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}
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NS_IMETHODIMP
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nsStreamIOChannel::OnStopRequest(nsIRequest *request, nsISupports* context, nsresult aStatus)
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{
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if (mUserObserver)
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mUserObserver->OnStopRequest(this, context, aStatus);
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if (mLoadGroup)
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mLoadGroup->RemoveRequest(this, context, aStatus);
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// Release the reference to the consumer stream listener...
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mRequest = 0;
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mFileTransport = 0;
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mUserObserver = 0;
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// Make sure the stream io is closed
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mStreamIO->Close(aStatus);
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// There is no point in returning anything other than NS_OK
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIStreamListener implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStreamIOChannel::OnDataAvailable(nsIRequest *request, nsISupports* context,
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nsIInputStream *aIStream, PRUint32 aSourceOffset,
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PRUint32 aLength)
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{
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return GetListener()->OnDataAvailable(this, context, aIStream,
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aSourceOffset, aLength);
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIStreamProvider implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStreamIOChannel::OnDataWritable(nsIRequest *request, nsISupports *context,
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nsIOutputStream *aOStream,
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PRUint32 aOffset, PRUint32 aLength)
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{
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return GetProvider()->OnDataWritable(this, context, aOStream,
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aOffset, aLength);
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIProgressEventSink implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStreamIOChannel::OnProgress(nsIRequest *request, nsISupports *context,
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PRUint32 progress, PRUint32 progressMax)
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{
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if (mProgressSink)
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mProgressSink->OnProgress(this, context, progress, progressMax);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamIOChannel::OnStatus(nsIRequest *request, nsISupports *context,
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nsresult status, const PRUnichar *statusText)
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{
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if (mProgressSink)
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mProgressSink->OnStatus(this, context, status, statusText);
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIInterfaceRequestor implementation:
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////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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|
nsStreamIOChannel::GetInterface(const nsIID &iid, void **result)
|
|
{
|
|
if (iid.Equals(NS_GET_IID(nsIProgressEventSink)))
|
|
return QueryInterface(iid, result);
|
|
|
|
return NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|